• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    multi-product belt dryer for pasty and / or powdery products, in particular for sewage sludge or biomass. the present invention relates to a multi-product belt dryer comprising: a first conveyor belt (2), permeable to air, on which the products to be dried are poured to carry out a first drying path; at least a second conveyor belt (3), permeable to air, to guarantee at least a second drying path of the products (m3) after the first; air blowing means (10); means for heating (14) the blown air to dry the products, and a drying air distribution circuit for the products and the belts; the drying air circuit is provided so that the drying air circulates in a downward direction (d) through the products to be dried and the belts, and a means of reheating the air (15) is provided between the two paths to reheat the air that has passed through the product layer on the first belt (2), before it passes through the product layer on the second belt (3).
    公开号:BR112014025346B1
    申请号:R112014025346-3
    申请日:2013-04-10
    公开日:2021-04-13
    发明作者:Juan Permuy Dobarro
    申请人:Sociedad General De Aguas De Barcelona, S.A.；
    IPC主号:
    专利说明:

    DESCRIPTION TECHNICAL SECTOR OF THE INVENTION
    [001] The invention relates to a dryer of multiple belt products for pasty and / or powdery products that contain water to evaporate, in particular for sludge from urban or industrial wastewater purification station, methanisation sludge, process by-products industrial and others as well as biomass of any kind.
    [002] The dryer is of the low temperature type, that is, at an air temperature below 95 ° C, preferably below or equal to 85 ° C.
    [003] Document EP 0570970 describes a belt drier wherein drying air circulates upwards and wherein partitions walls devetes the drying air that passes through a lower belt forcing it to pass through reheating means before being redirected to an upper belt. BACKGROUND OF THE INVENTION
    [004] Patent document EP 0570970 discloses a dryer that comprises an upper conveyor belt which discharges the product to be dried by gravity on a lower conveyor belt and which uses an upward air stream to dry the products conveyed by the belts. This document recommends forcing upward air circulation to decrease the amount of dust or suspended particles entrained by the air stream.
    [005] This dryer comprises means of reheating the air used towards which the air is redirected after crossing the lower belt and through which the aforementioned air is forced to circulate before being redirected to the upper belt. OBJECTIVES OF THE INVENTION
    [006] The object of the invention is mainly to provide a belt dryer for thermal drying by means of air convection that guarantees a good drying efficiency with a minimum of dust entrained in the drying air.
    [007] The invention also intends to provide a thermal belt dryer, by means of air convection, which allows treating in the same equipment both sludge from urban or industrial water purification station, as well as methanization sludge, by-products of industrial processes and others, and biomass in one and the same equipment.
    [008] A thermal dryer that makes efficient use of the energy used for heating and air circulation is also of interest. EXPLANATION OF THE INVENTION
    [009] According to the invention, a multistage belt dryer for pasty or powdery products containing evaporating water, in particular for sewage sludge plant sludge, methanisation sludge, biomass, comprises:
    [0010] - a first conveyor belt, permeable to air, on which the products to be dried are deposited to perform a first drying path;
    [0011] - at least one second conveyor belt, permeable to air, to guarantee at least a second drying path for the products after the first one;
    [0012] - means of blowing air;
    [0013] - means of heating the blown air to dry the products, and a drying air distribution circuit for the products and belts,
    [0014] in essence it is characterized by the fact that the drying air circuit is provided for the drying air to circulate downwards through the dry products and the belts, and by the fact that a means of reheating the air has been provided between the two paths to reheat the air that has passed through the product layer on the first belt, before it passes through the product layer on the second belt.
    [0015] The circulation of air in a downward direction reduces the risk of dust entrainment, which is retained by the belts that act as filters. The reheating of the air that, in a first stage, passed through the wetter products supported by the first belt allows to improve the treatment of the drier product, supported by the second conveyor belt. The air circulation is preferably carried out in a transverse direction with the belts advancing.
    [0016] The second belt is arranged under the first belt and the air circuit is provided to guarantee a return of the air according to a direction that is substantially perpendicular to the belts.
    [0017] The belts are endless belts wrapped around rolls of horizontal parallel axes, with each endless circuit having an upper and a lower branch, and the reheating medium is available between the branches of the first belt.
    [0018] The air blowing means are advantageously adjustable according to the nature of the products to be dried to control the pressure drop to be traversed. The blowing means can comprise at least one radial fan driven by an adjustable speed motor.
    [0019] The speed of the fans can be regulated with the help of speed variators, to guarantee the same speed of air passage through the products and the belts, despite the differential pressure differences generated by different products, and despite the pressure variation differential due to certain products during the drying process. This allows to guarantee an automatic adaptation to multiple products and an optimization of the electric energy consumption of ventilation.
    [0020] Advantageously, the air heating medium is located above the first belt, and means for cooling the air that has passed through the second belt are arranged above the heating medium so that a part of the recirculated air passes through, and to guarantee condensation part of the evaporated water. One or more axial fans, with horizontal rotation axis, can be arranged on one side of the cooling exchanger to control the air flow through this exchanger.
    [0021] According to this particular modality, a part of the air that has passed through the second belt, and which is recirculated so that it passes over the first belt, passes through at least one refrigeration exchanger, with variable speed, so that this part of air to cool to its dew point, which allows to eliminate from the air circuit the amount of water that has been evaporated from products to be dried. When this water is removed in the form of liquid water, the drying air can circulate in a closed circuit.
    [0022] A multi-product preparation system allows a uniform distribution of the product to be dried on the drying belts and also an increase in the product / air interchange surface in the case of pasty products or with a maximum grain size of 10 mm.
    [0023] The dryer comprises a device for feeding products from the first belt comprising a volumetric extruder that extends over the entire width of the belt and an extrusion tub suitable to be opened over the entire width of the belt, to allow a load of products to be dried without extrusion.
    [0024] The extrusion vat may have a semi-cylindrical shape whose concavity is directed upwards, and can be made in two parts, at least one of which is movable and can be separated from the other by means of displacement to drop the products without extrusion.
    [0025] The extruder may be formed by blades that follow each other at an angle and extend over the entire width of the belt, these blades being carried radially through a coaxial tree to the extrusion vat, scraping the flexible blades against the inner wall of this vat.
    [0026] Apart from the provisions described above, the invention consists of a certain number of other provisions that will be dealt with more explicitly below with regard to an example of modality described with reference to the attached drawings, but which is not at all limiting. BRIEF DESCRIPTION OF THE DRAWINGS
    [0027] In these drawings:
    [0028] Figure 1 is a longitudinal section of a dryer according to the invention, which illustrates the placement of belts, fans, heat exchangers and means of handling the products to be dried.
    [0029] Figure 2 is a diagram illustrating the circulation of air in a dryer according to the invention.
    [0030] Figure 3 is a cross section according to line III-III of figure 1 the largest scale.
    [0031] Figure 4 is a perspective detail of cycle IV in figure 3.
    [0032] Figure 5 is a representation, on the largest scale, of a unit in Figure 1.
    [0033] Figure 6 is a perspective view, the smallest scale, of a dryer with three sections, which make up a drying module, of Figure 1.
    [0034] Figure 7 is a vertical cross-section on a larger scale of the device for preparing and distributing the products to be dried for loading on the drying belt, in a working position for products whose particles are less than 10 mm in size. and mostly pasty, and
    [0035] figure 8 shows, similarly to figure 7, the feeding device for the products to be dried in the working position for non-pasty products or with a particle size greater than 10 mm. DETAILED DESCRIPTION OF THE INVENTION
    [0036] Referring to the drawings, specifically figures 1, 3 and 5, it is possible to observe a belt dryer 1 for pasty and / or powdery products that contain water to be evaporated, in particular for sludge from sewage treatment plant , methanization sludge, by-products of industrial and other processes, and biomass.
    [0037] The dryer comprises a first conveyor belt 2, or belt, permeable to air, on which the products to be dried are poured to carry out a first drying path, and at least a second conveyor belt 3, permeable to air, to guarantee at least a second drying path for the products after the first route.
    [0038] According to the illustrated modality example, belts 2 and 3 are endless belts wrapped around horizontal parallel axis rolls, respectively 2a, 2b and 3a, 3b that determine the ends of the circuits and the inversion of the route of the branches of each circuit. The second belt 3 is arranged under the first belt.
    [0039] A hopper 4 containing the products to be dried is provided above the first belt 2 to guarantee the gravity feed of the products to be dried, of this belt 2 at one end of the circuit, located on the left according to the representation of figure 1. The upper branch 2.1 of the circuit moves from left to right according to this figure. At its right end, corresponding to roll 2b, belt 2 drops the products on the second belt 3 which extends beyond roll 2b. The belt 3 rotates in the opposite direction to the belt 2 and the products to be dried return to the left of figure 1 to be poured into a device 5.a dry goods recovery, under the left end of the belt 3.
    [0040] A rotating brush 6.a is provided at each end of belts 2 and 3, just at the top of the fall of the products to be dried on the belts. The brush 6.a for the belt 2 is therefore at the left end while the brush 6.a for the belt 3 is at the right end.
    [0041] A breaker 6.b, formed by a rotating axis with rigid transverse palettes, is provided at the winding end of belt 2.b and 3.b to ensure the breakdown of the possible product plates created during the drying process in the belt 2 and help pour the product onto the belt 3.
    [0042] A breaker 6.c, formed by a rotating axis of rigidly located blades, is provided at the winding end of belt 2.a and 3.a to ensure the disaggregation of the possible product plates created during the drying process in the belt 3 and help feed screw 5.a. A device 5.b located under the right part of the belt 3 recovers possible particles of product deposited on the entire floor of the dryer, which are transported to the device 5.b to the lower branch 3.2 of the belt 3.
    [0043] Advantageously, dryer 1 is made modularly with identical units or sections 7.1, 7.2, 7.3, juxtaposed between two end modules 8, 9. Module 8, equipped with hopper 4, surrounds the product entrance to be dried and the output of these products after drying. Module 9 surrounds the ends of the circuits around rollers 2b, 3b.
    [0044] The dryer 1 comprises the air blowing means 10 identical for each section 7.1, 7.2, 7.3. Each blowing means 10 comprises a radial fan 11 (figure 3) that draws air under the second belt 3 as shown by the arrows in figure 3 to inflate it in the vertical direction, as shown by the arrow V, in a free space 12 provided between the belt support devices and a wall 13 that closes the dryer from the outside. In general, each section is bounded by demountable walls, not shown, in order to constitute a relatively closed space for the circulation of the drying air in a closed circuit.
    [0045] The air distribution circuit is provided for the drying air to circulate in a downward direction according to arrows D (figure 3) through the layers of products to be dried M2, M3 and the belts 2, 3 that play filter paper and retain dust.
    [0046] In each section, heating means 14 for the blown air comprising a heat exchanger 14, hereinafter exchanger 14, is disposed above the first belt 2. This exchanger 14 can be a liquid / air or steam / air exchanger , mainly hot water / air.
    [0047] The air that passed through the belt 2, loaded with the product M2, which constitutes the most humid product, is reheated by means of a reheating means 15 comprising an exchanger, henceforth the exchanger 15, before passing through the M3 layer of drier product. The heat exchanger 15 reheats the air before it passes through the product layer M3 on the second belt 3. This heat exchanger 15 is advantageously disposed between the branches 2.1 and 2.2 of the belt 2.
    [0048] A cooling exchanger 16 is arranged above the exchanger 14 so that a portion of the air recirculated by each fan passes through 11. The cooling exchanger 16 is arranged, as shown in figure 5, so that it is crossed by air in a horizontal direction parallel to the direction of travel of belts 2 and 3. One or more axial fans 17, with horizontal axis of rotation orthogonal to the axis of rotation of fan 11, are arranged on one side of the exchanger 16 to control the flow of air passing through this exchanger.
    [0049] The drying air circulation is guaranteed by the radial fans 11 located at the dryer's ground level, which send the air to the top of the dryer. The speed of the main fans 11 as well as that of the fans 17 is adjustable with the help of speed variators.
    [0050] The speed regulation of the main fans 11 allows to guarantee the same air passage speed through belts 2 and 3 and the product layers, despite the differential pressure differences created by the different products to be dried and despite the variation of differential pressure that can result in certain products during the drying process. This fan speed regulation allows the multiple product dryer to be automatically adapted to different products, and to optimize the consumption of ventilation electricity.
    [0051] The speed regulation of the fan 17 allows the adjustment of the part of the recirculated air that passes through the cooling exchanger 16. The speed regulation of this fan also allows to cool the part of the air that passes through the exchanger 16 to a temperature corresponding to the dew point, which allows the elimination of the amount of water that has been evaporated from the product to be dried, in the form of liquid water, while circulating the drying air in a closed circuit. The water that has been condensed in the path of the cooling exchanger 16 is evacuated by means of a duct not visible in the drawings.
    [0052] The closed circuit followed by the air recirculated in the dryer comprises a vertical branch corresponding to the arrow V (figure 3), the medium plane of the vertical flow being perpendicular to the axis of rotation of the fan 11, and parallel to the forward direction of the belts 2 and 3. In the upper part of the dryer section, the air flow is divided into two downward branches, outlined by arrows 18, 19 in figure 5. A part of the downward flow according to arrow 18 when passing in front of the refrigeration exchanger 16 is sucked according to the direction of the horizontal arrows 20 through the exchanger 16, by the fan 17 that expels the sucked air according to the downward direction 19. The flow according to the horizontal arrows 20 is substantially parallel to the direction of displacement of the belts 2 and 3.
    [0053] The downward air flow according to arrows 18, 19 then passes through the heat exchanger 14, then through the direction of the vertical downward arrows D (figure 3) passes through the first layer of products M2 on the belt 2, then the reheat exchanger 15, then the second layer of products M3 and the second belt 3 to be aspirated by the fan 11 according to the direction of the horizontal arrow 21 (figure 3), orthogonal to the direction of travel of the belts.
    [0054] The dryer according to the invention constitutes belt equipment for thermal drying by means of air convection which allows the treatment of pasty and / or powdery products of different types, specifically sludges from urban or industrial water purification plants, sludges from methanisation, by-products of industrial and other processes, and biomass, thanks to a multi-product preparation system comprising a feeding device 22 for the first belt 2 which ensures a uniform distribution of the material to be dried on the belt 2, as well as an increase in the product / air interchange surface in the case of pasty products or with a particle size less than 10 mm.
    [0055] The feeding device 22, represented in the largest scale in figure 7, comprises a volumetric extruder 23 that extends over the entire width of the belt 2 and an extrusion vat 24.
    [0056] Extruder 23 is formed by flexible blades or pallets 25 oriented in a substantially radial manner, displaced angularly and extending in parallel to the width of the belt 2. These blades 25 are fixed, according to a longitudinal edge, to one end on a rotating shaft 26 parallel to the width of the belt 2. The bowl 24 is substantially semi-cylindrical coaxial to the shaft 26. When this tree 26 is rotated, the blades 25 scrape the inner surface of the bowl 24. According to the representation of the figures 1, 7 and 8, tree 26 rotates clockwise. The blades 25 rotate under the outlet of the hopper 4 and drag, in the bowl 24, a volume determined by the space between two blades and the inner surface of the bowl. The hopper outlet 4 is generally equipped with a rotary drive device 4a (figure 1) to facilitate the delivery of products to the vat.
    [0057] The inner wall of the vat is constituted by a grid 27, which has perforations or holes through which the material is extruded under the effect of the pressure exerted by the blades 25 put in rotation. Advantageously, the paddles 25 are in a number of four and follow each other at right angles, with the concavity of the bowl 24 directed upwards.
    [0058] The wall of the tub 24 is made in two parts 24a, 24b articulated at its upper outer end respectively on an axis 28a, 28b parallel to the tree 26. The pivoting of each part 24a, 24b, in the direction of the opening of the tub 24 downwards, it is secured by a cylinder 29a, 29b of which one end is hinged on a fixed point of the dryer structure and of which the other end is hinged on a support attached to part 24a, 24b and which protrudes outwards.
    [0059] Therefore it is possible, as shown in figure 8, to open the bowl 24 downwards, for example, pivoting the part 24a clockwise around the axis 28a to release an opening 24 through which the material can fall directly on belt 2, without experimenting with extrusion.
    [0060] This feeding mode can be used for non-pasty or powdery products whose grain size will be greater, for example, 10 mm and which cannot be extruded by the device 23.
    [0061] The feeding device 22 constitutes a system of preparation and distribution of multiple products that is suitable for pasty products whose granulometric size may be smaller or larger than that normally provided for the extruder press 23.
    [0062] The grid 27, also made in two parts corresponding to the parts 24a, 24b, advantageously has perforations of 6-10 mm for the extrusion. In the configuration according to figure 7, the extruder press 23 allows the extrusion of sludge or other pasty products that have a grain size smaller than the size of the perforations of the grid, generating filaments that are deposited by gravity on the drying belt 2. In In the configuration of figure 8, the extruder press 23 allows the distribution on the belt 2 of less pasty products or that have a granulometry greater than the size of the perforations of the extruder press grid.
    [0063] The quality control of the product poured on the belt 2 is guaranteed by controlling the adjustable speed of rotation of the shaft 26 and the blades or palettes 25. These blades 25 guarantee a volumetric control of the product that passes through the extruder press, in relation to a height control of the product load on the upper belt 2.
    [0064] The feeding device 22 has a width equivalent to that of the belt 2 and allows an even distribution of the product. The hopper 4 allows to have a uniform weight of product in reserve to regulate the load pressure of the product during its passage to the belt 2.
    [0065] It is evident that the advantages provided by this feeding device 22 can be used for other dryer variants even when it does not have means of reheating between the branches of the first belt. The feeding device 22 is therefore compatible with other variants of the dryer not covered by the invention.
    [0066] The air circuit for drying is carried out with air whose maximum temperature is preferably 85 ° C.
    [0067] Dryer 1 is made by assembling sections 7.1, 7.2, 7.3 in a number of three in the example shown, this number may be different, and it may actually reach seven. The grouping of one to seven sections forms a drying module. The dimensions of the modules have been optimized to take into account transport limitations. The desired capacity for dryer 1 is obtained by assembling several drying modules, specifically from one to five modules, with continuity of belts 2, 3 that run through the different modules. Both the width of the sections and the belts can be varied depending on the desired capacity.
    [0068] The walls that line the dryer, in order to constitute a closed space from the entrance of the products to be dried until their exit, are made in the form of demountable panels attached to the structure of the dryer. This structure is made in the form of a rectangular parallelepiped with mounted profiles as shown in figure 6, with thermal point breaks.
    [0069] The diagram in figure 2 summarizes the operation of the dryer. The drying air is blown by the fan 11 towards the heat exchanger 14. A part of this air is diverted to pass through the condenser exchanger 16 under the effect of the suction of the fan 17. This part, after having discharged a certain amount humidity, it is reintroduced into the air flow directed to the exchanger 14. The air heated by this exchanger passes through the M2 product layer supported by the belt 2, as well as this belt, to then reheat through the exchanger 15 and to pass through the product layer M3 and the belt 3. The air that passed through the belt 3 is returned to the suction of the fan 11.
    [0070] A dryer, according to the invention, allows to treat different types of products at the same time that guarantees the same speed of air passage through the belts and layers of products to be treated by regulating the speed variators that control the fans 11.
    [0071] The circulation of air in a downward and transversal direction to the advancement of the belts allows to reduce the generation of powders, without compromising the level of drying thanks to the reheating of the air that passed through the belt 2 loaded with the wetter product.
    [0072] The cooling of part of the air to a dew point that allows the elimination of the amount of water that has been evaporated, with circulation of the drying air in a closed circuit.
    [0073] The dryer allows to obtain at the outlet a product whose dryness can be adjustable and of the order of 90%.
    [0074] Numerous applications are possible, not only to sludge, but also to biomass, or to wood chips or the like that, at the exit of the dryer, are subjected to an energy recovery or gasification treatment that provides gas used in cogeneration for produce electricity; this gasification generates ash-shaped waste.
    权利要求:
    Claims (10)
    [0001]
    1. Multi-product belt dryer for pasty and / or powdery products containing water to be evaporated, in particular for sewage sludge, sludge from methanisation or biomass, comprising: - a first permeable conveyor belt (2) in the air, over which the products to be dried (M2) are poured to carry out a first drying path, - at least a second conveyor belt (3), disposed under the first conveyor belt (2) and permeable to air, for ensure at least a second drying path for the products (M3) after the first path, - air blowing means (10), - heating means (14) for the blown air to dry the products, - and a distribution circuit for the product drying air for products and belts, in which the dryer is provided with a means of reheating air (15) between the two paths to reheat the air that has passed through the product layer (M2) on the first belt (2) , before it crosses the c beloved of products (M3) on the second belt (3) and the fact that the belts (2, 3) are endless conveyor belts wrapped around rollers (2a, 2b; 3a, 3b) of horizontal parallel axes, with each worm circuit having an upper and a lower branch, characterized by the fact that the drying air circuit is provided so that the drying air circulates in a downward direction (D) through of the products to be dried (M2, M3) and the belts (2, 3), according to a direction substantially perpendicular to the belts, the reheating means being provided the reheating means between the branches (2.1, 2.2) of the first belt .
    [0002]
    2. Dryer, according to the previous claim, characterized by the fact that the blowing means (10) are adjustable according to the nature of the products to be dried to control the pressure drop in the route.
    [0003]
    3. Dryer, according to the previous claim, characterized by the fact that the blowing means comprise at least one radial fan (11) driven by an adjustable speed motor.
    [0004]
    Dryer according to any one of the preceding claims, characterized by the fact that the air heating means (14) is located above the first belt (2), and by the fact that cooling means (16) are provided of the air that passed through the second belt (3) above the heating medium (14) so that a part of the recirculated air passes through them, and to guarantee a condensation of a part of the evaporated water.
    [0005]
    5. Dryer, according to the previous claim, characterized by the fact that a radial fan (17), with a horizontal rotation axis, is arranged on one side of the refrigeration exchanger (16) to control the air flow that passes through this exchanger.
    [0006]
    6. Dryer according to any one of the preceding claims, characterized in that the product feeding device (22) of the first belt (2) comprises a volumetric extruder press (23) that extends over the entire width of the belt and an extrusion vat (24) suitable to be opened over the entire width of the belt to allow a load of products to be dried without causing them to experience extrusion.
    [0007]
    7. Dryer, according to the previous claim, characterized by the fact that the extrusion vat (24) has a semi-cylindrical shape whose concavity is directed upwards, and is made in two parts (24a, 24b) of which at least one it is mobile and can be separated from the other by means of displacement (29a, 29b) to drop the products without extrusion.
    [0008]
    8. Dryer according to claim 6 or 7, characterized by the fact that the extruder press (23) is formed by blades (25) that are angularly successive and extend over the entire width of the belt, carrying these blades radially through a tree (26) coaxial to the extrusion vat (24), scraping the blades (25) on the inner wall of this vat.
    [0009]
    9. Dryer, according to either claim 6 or 7, characterized by the fact that it comprises a system of turners (6.b and 6.c) that guarantee the breakdown of the possible product plates created during the drying process.
    [0010]
    10. Dryer, according to claim 6 or 7, characterized by the fact that the return of the belt to the ground level (3.2) guarantees the recovery of any particle deposited on the dryer floor, which is extracted from the dryer by means of a device screw type (5.b).
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112014025346B1|2021-04-13|MULTIPRODUCT BELT DRYER FOR PASTY AND / OR SPRAY PRODUCTS, IN PARTICULAR FOR PURPOSE OF PURIFICATION STATION OR BIOMASS
    US5343632A|1994-09-06|Closed-loop drying process and system
    PL129735B1|1984-06-30|Apparatus for drying and granulating moist fusible and/or pasty materials
    PT2587203E|2015-11-23|Belt dryer
    KR20100128621A|2010-12-08|Drying machine of processing wastes
    US5428904A|1995-07-04|Method and apparatus for drying sewage sludge with a drying gas that is itself dried and recirculated
    RU187214U1|2019-02-25|Zernosushilka mine louvre
    US9995531B2|2018-06-12|Multiple intermittence beehive grain dryer
    KR20120070389A|2012-06-29|Drying machine
    DK1926385T3|2015-09-28|DEVICE FOR TREATMENT OF LONG OUTSTRETCHED food WITH CONDITIONED AIR FLOW
    US3302297A|1967-02-07|Drying apparatus and method
    RU2014141413A|2016-05-20|DEVICE FOR CONTINUOUS DRYING OF PARTICLES
    JP4848549B2|2011-12-28|Method and apparatus for drying food waste
    FI124272B|2014-05-30|DRYING AND PROCEDURE FOR DRYING MATERIALS
    CN202613916U|2012-12-19|Device for drying medicine raw materials
    KR101541039B1|2015-08-03|Screw Transfer Type Hot Air Drying Equipment
    JP2013507965A|2013-03-07|Laminar flow control egg drying equipment
    CN206352955U|2017-07-25|A kind of Novel tunnel-type drying machine
    FI124793B|2015-01-30|Method and apparatus for increasing drying efficiency and energy efficiency in connection with the drying section of pulp manufacture
    KR101792774B1|2017-11-02|Continuous rotary dryer using solar ray
    CN208765403U|2019-04-19|A kind of drying machine of low clearance charging
    KR200176734Y1|2000-04-15|Dry system for farm and aquatic products
    KR200466944Y1|2013-05-15|Fowl dropping dryer
    CN207779045U|2018-08-28|Use in waste water treatment sludge drying mechanism in a kind of fur manufacturing
    CN212631767U|2021-03-02|A spray drier for plant draws
    同族专利:
    公开号 | 公开日
    US20150075024A1|2015-03-19|
    WO2013153248A1|2013-10-17|
    PT2650632E|2015-10-30|
    MX358897B|2018-09-06|
    MX2014012340A|2015-05-11|
    BR112014025346A2|2016-08-09|
    EP2650632A1|2013-10-16|
    US9939199B2|2018-04-10|
    CA2868285C|2018-11-20|
    CA2868285A1|2013-10-17|
    EP2650632B1|2015-08-19|
    PL2650632T3|2016-08-31|
    EP2650632B8|2015-09-23|
    ES2552720T3|2015-12-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB265374A|1926-02-02|1927-02-10|Int Comb Ltd|Improvements in apparatus for drying coal and other fuel, or other granular or powdered material|
    GB305979A|1928-02-13|1930-02-03|Benno Schilde Maschinenbau-Aktiengesellschaft|
    US1976280A|1931-07-04|1934-10-09|Fischer Otto Johannes|Drying machine|
    CH300111A|1950-07-07|1954-07-15|Borie Jean Victor Roger|Device for drying a product.|
    FR1076293A|1952-03-08|1954-10-25|Svenska Flaektfabriken Ab|Dryer|
    CH349583A|1956-03-06|1960-10-31|Basf Ag|Device for the continuous conversion of solids|
    US3143398A|1962-09-14|1964-08-04|Challenge Cook Bros Inc|Sealed apparatus for drying, warming and aerating materials|
    US3441258A|1967-10-05|1969-04-29|Allis Chalmers Mfg Co|Method and apparatus for preheating particulate feed material for a rotary kiln|
    DE2729015C3|1977-06-28|1983-11-03|Lupofresh Allfeld & Egloff, 8500 Nürnberg|Post-drying of hops|
    AT82632T|1988-08-22|1992-12-15|Robert Baer|METHOD AND DEVICE FOR DRAINING WATER-BASED MEASURES.|
    DE4022702C1|1990-07-17|1991-11-28|Fritz Egger Ges.M.B.H., Sankt Johann In Tirol, At|
    DE4127374A1|1991-08-19|1993-02-25|Hauni Werke Koerber & Co Kg|DEVICE FOR CONVERTING TOBACCO PARTS INTO A POWER DRYER|
    US5343632A|1992-04-10|1994-09-06|Advanced Dryer Systems, Inc.|Closed-loop drying process and system|
    DE4217056A1|1992-05-22|1993-11-25|Fritz Egger Gmbh|Dryer for pourable or pourable goods|
    DE4235422C2|1992-10-21|1997-01-23|Dornier Gmbh Lindauer|Process for drying pasty material, in particular sewage sludge, preferably in pellet form, and device for carrying out the process|
    DE10005165B4|2000-02-08|2005-02-24|Erich Netzsch Gmbh & Co Holding Kg|Method and device for drying pre-dewatered liquid to moist substances|
    DE10038910A1|2000-08-09|2002-02-21|Innoplana Umwelttechnik Ag Tae|Process for drying pasty materials|
    NZ541426A|2005-07-25|2008-06-30|Flo Dry Engineering Ltd|Method and apparatus for drying|
    FR2897620B1|2006-02-21|2008-04-04|Stein Heurtey|METHOD AND DEVICE FOR COOLING AND STABILIZING BAND IN A CONTINUOUS LINE|
    FR2954814B1|2009-12-30|2012-03-02|Degremont|METHOD AND APPARATUS FOR DRYING PASTE MATERIALS, IN PARTICULAR SLUDGE OF PURIFICATION STATIONS, WITH GENERATION OF THERMAL ENERGY.|CN103615882B|2013-12-16|2015-05-20|浙江大学|Fodder moisture detection control system|
    CN103693837A|2013-12-23|2014-04-02|常州市新港热电有限公司|Sludge dryer|
    CN105645721B|2016-02-29|2018-10-09|普利资环境科技（苏州）有限公司|A kind of belt drying device|
    CN105645722B|2016-03-02|2018-04-06|普利资环境科技（苏州）有限公司|A kind of feed arrangement of sludge drying device|
    DK3231984T3|2016-04-11|2020-08-31|Max Wild Gmbh|PROCEDURE FOR TREATING DRILLING SLUDGE|
    WO2020003232A2|2018-06-29|2020-01-02|Solwa S.R.L.|A drying apparatus for wet matrices and a relative drying method of wet matrices|
    IT201800006824A1|2018-06-29|2019-12-29|APPARATUS FOR TREATMENT AND DRYING OF WET MATRIXES AND RELATIVE METHOD OF TREATMENT AND DRYING OF WET MATRICES.|
    CN108751664A|2018-07-11|2018-11-06|刘桂明|A kind of Treatment of Sludge high efficiency extruding dewatering drying device and its sludge treating system|
    DE102018133070B4|2018-12-20|2021-08-05|i +M GmbH & Co. KG Innovation und Management|Device for drying sewage sludge|
    CN109654830A|2018-12-28|2019-04-19|天津森罗科技股份有限公司|A kind of medicinal material drying processing unit|
    CN110698036A|2019-11-11|2020-01-17|临朐凯盛机电科技有限公司|Sled dress formula heat pump mud drying machine|
    CN111302598A|2020-03-09|2020-06-19|中环环境技术有限公司|Efficient dehydration device for sludge treatment and operation method thereof|
    CN111829317B|2020-07-27|2021-11-05|湖北工业大学|Fruit and vegetable drying device|
    CN113551492B|2021-09-22|2021-11-23|南通宝灿生物科技有限公司|Drying device of powder material for biochemical engineering|
    法律状态:
    2016-10-18| B25D| Requested change of name of applicant approved|Owner name: AQUA DEVELOPMENT NETWORK, S.A. (ES) |
    2016-11-01| B25A| Requested transfer of rights approved|Owner name: SOCIEDAD GENERAL DE AGUAS DE BARCELONA, S.A. (ES) |
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-03-10| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-02-23| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-04-13| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 10/04/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP12382143.1|2012-04-13|
    EP12382143.1A|EP2650632B8|2012-04-13|2012-04-13|Multiple product belt drier for drying pasty and/or powdery materials, particularly for drying sludges from treatment plants or biomass|
    PCT/ES2013/070228|WO2013153248A1|2012-04-13|2013-04-10|Multiple product belt drier for drying pasty and/or powdery materials, particularly for drying sludges from treatment plants or biomass|
    [返回顶部]