![]() Method of producing cement clinker
专利摘要:
The invention relates to the building materials industry, primarily to the production of cement clinker. The purpose of the invention is to provide temperature control in the branches of the heat exchangers. The raw cement material first flows through the feed pipe to the heat exchanger assembly, from which the material stream is fed to the discharge pipe of the heat exchanger of another branch for exhaust gases. The raw material-material streams alternately pass between the branches of the heat exchanger of the branches for the flue gases, the raw material being heated in steps. After the last preheating stage in the heat exchanger assembly, the flow of raw material flows through the discharge pipe to the reactor in which the material is decarbonated. From the decarbonator, the material is fed back in two separate streams, respectively, to the supply of flue gas and flows through the separator into the kiln. The burned clinker is cooled in the refrigerator. 2 Il. SU) 公开号:SU1426450A3 申请号:SU864008381 申请日:1986-01-10 公开日:1988-09-23 发明作者:Креннбауер Франц;Ферингер Фридрих 申请人:Фоест-Альпине Аг (Фирма);Феб Швермашиненбаукомбинат "Эрнст Тельманн", Магдебург (Инопредприятие); IPC主号:
专利说明:
42 tc About: “iU ate The invention relates to the building materials industry, primarily to the production of cement clinker. The aim of the invention is to provide temperature control in the branches of the heat exchangers. FIG. 1 is depicted as a simplified block diagram of the plant for producing cement in FIG. 2 is a constructional variant of this installation in the area of a step heat exchanger heated by the furnace exhaust gases. The method is carried out as follows. The raw material, the flow chart of which is indicated by dashed lines, is fed through the loading pipe 1 to the multistage heat exchanger, which heats up with the help of exhaust gases from the furnace 2, then enters the reactor 3. The heat exchanger has two parallel branches A and 5 for exhaust gases, which are formed by nodes 6-8 constructed as cyclones on the one hand and nodes 9-11 on the other hand. The branches 4 and 5 for the heat exchanger exhaust gases are connected to two pipelines 12 and 13 for the waste gases of the reactor 3, which pass through the corresponding material cut-off 14, 15, designed as a cyclone separator. The discharge pipe of this material cutter 14, 15 ends in a kiln 2, where the decarbonated raw material is burned to the state of cement clinker. The calcined cement clinker is then cooled in the cooler 16, with part of the heated cooling air being supplied to the kiln -2 as blast air. The additional material required for decarbonization of the raw material in the reactor 3 is supplied to the reactor through the nozzle 17, where part of the cooling air from the cooler is used as the blast air. The raw material preheated in the heat exchanger is heated to a higher preheating temperature by more hotly than the reactor off gas 3 of the furnace off gas in five 20 25 JQ .Q 35 50 55 heat exchanger unit 18, which is directly related to reactor 3. For this purpose, heat exchanger unit 18 is connected to furnace 2 by pipe 19 for exhaust gases. The output gas pipeline 20, directly connected to the furnace of the heat exchanger unit 18, is connected via a connecting gas pipeline 21, 22 to the pipeline, pipeline 12, 13 for the exhaust gases of the reactor 3 so that the feed gas pipe 23 of both branches 4 and 5 for the exhaust gases can be loaded with a mixture of exhaust gases from the furnace and the reactor, and precisely if certain mixing proportions are maintained for each of the two branches 4 and 5 for the exhaust gas. In order to maintain this mixing ratio, regulating throttles 24 are provided in the connecting pipes 21 and 22, and the throttles are designed as gate valves. This allows separate flow of the mixed exhaust gases to each, from both branches 4 and 5. After passing through both branches 4 and 5 for the exhaust gases, both streams of the mixed exhaust gases are again connected and output to the outside with a common blower. Supplied to the heat exchanger through the boot. the raw material pipe 1 first enters the heat exchanger unit 7, from which the material flow is supplied to the discharge, the pipe 25, the heat exchanger branch 10, the exhaust gas branch 5, to the loading pipe 26 of which the discharge pipe 25 is connected. back and forth between the heat exchanger nodes of the branches 4 and 5 for exhaust gases, the raw material being heated in steps. After the last preheating stage in the heat exchanger assembly 18, the flow of raw material flows through the discharge pipe 27 of this assembly into the reactor 3, in which the material is decarbonated with the heat supplied. The decarbonated material is fed back from the reactor in two separate streams, respectively, to the flow of exhaust gas and is fed through a separator 14, 15 for firing into kiln 2.
权利要求:
Claims (1) [1] Invention Formula Method for the production of cement clinker by heating the raw mix with waste gases in two parallel branches of cyclone heat exchangers, with the flow of the raw mix alternately directing from the heat exchanger of one branch to the heat exchanger of the other branch, decarbonating to calcine a torus and calcining in a rotary kiln, each mixture of cyclone heat exchangers being fed a mixture of exhaust gases from a rotary kiln and a calciner, characterized in that, in order to control the temperature in the branches of the heat exchangers, the exhaust gases from the calciner and In each branch of the cyclone heat exchangers serves a separate stream. Fig1 .
类似技术:
公开号 | 公开日 | 专利标题 US3975148A|1976-08-17|Apparatus for calcining cement US3864075A|1975-02-04|Apparatus for burning granular or pulverous material CA1197095A|1985-11-26|Method and apparatus for roasting fine grained ores US4298393A|1981-11-03|Method and system for burning fine-grained material, particularly for the manufacture of cement clinkers GEP20032952B|2002-12-10|Method and Apparatus for Producing Cement Clinker SU847910A3|1981-07-15|Device for annealing powdered materials SU1426450A3|1988-09-23|Method of producing cement clinker US4392822A|1983-07-12|System for burning fine-grained material, particularly for the manufacture of cement clinkers GB1469673A|1977-04-06|Kiln plants GB1506863A|1978-04-12|Installations for the manufacture of cement by the dry process US4492566A|1985-01-08|Method and apparatus for heat treatment of fine-grained material US4102700A|1978-07-25|Process for the production of a mixture to be utilized in the production of building materials and a device for carrying out the process KR860001645B1|1986-10-15|Process and apparatus for producing cement US4256502A|1981-03-17|Method of preparing cement clinker from carboniferous shale SU1299495A3|1987-03-23|Method for producing cement clinker WO2002018270A1|2002-03-07|A method of decomposing gypsum to sulfur dioxide and the apparatus thereof US4349387A|1982-09-14|Method for calcining fine-grained material, particularly for the manufacture of cement clinker CA1129648A|1982-08-17|Apparatus for treating solid particulate material US4416697A|1983-11-22|Method for preheating cement clinker raw materials US4416696A|1983-11-22|Method for heat treating cement clinker raw materials RU2074842C1|1997-03-10|Method and plant for manufacturing building materials utilizing fuel-containing wastes EP0030409A1|1981-06-17|Method of and plant for manufacturing pulverous or granular material, for example cement RU2217675C2|2003-11-27|Cyclone heat exchanger DK151376B|1987-11-30|METHOD AND PLANT FOR MULTI-STEP CALCINATION OF FRAME, SPECIAL FOR CEMENT MANUFACTURING SU855365A1|1981-08-15|Lime firing kiln
同族专利:
公开号 | 公开日 FI855138A0|1985-12-23| DE3562363D1|1988-06-01| ES550796A0|1987-03-01| AU575224B2|1988-07-21| YU1386A|1988-02-29| RO94524A|1988-06-30| FI78448C|1989-08-10| FI78448B|1989-04-28| NO855108L|1986-07-14| CN86100165B|1987-12-09| KR860005759A|1986-08-13| ZA86205B|1986-09-24| YU44279B|1990-04-30| DK6586A|1986-07-12| DK163495C|1992-08-10| EP0188187A1|1986-07-23| ATA5785A|1986-04-15| CS17886A2|1987-11-12| KR930009326B1|1993-09-27| MD52C2|1995-03-31| US4685970A|1987-08-11| EG17655A|1990-03-30| NO167730C|1991-12-04| FI855138A|1986-07-12| AU5028085A|1986-07-17| RO94524B|1988-07-01| IN168312B|1991-03-09| EP0188187B1|1988-04-27| AT381694B|1986-11-10| ES8703820A1|1987-03-01| NO167730B|1991-08-26| JPH0647488B2|1994-06-22| DK6586D0|1986-01-08| MD52B1|1994-08-31| JPS61163147A|1986-07-23| DK163495B|1992-03-09| CS258137B2|1988-07-15| CN86100165A|1986-09-03| CA1254384A|1989-05-23|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 RU2466950C2|2006-11-13|2012-11-20|Лафарж Са|Method for production of cement| RU2525555C1|2013-05-06|2014-08-20|Государственное унитарное предприятие "Институт нефтехимпереработки Республики Башкортостан" |Method to produce portland cement clinker| RU2574795C1|2014-11-25|2016-02-10|Государственное унитарное предприятие "Институт нефтехимпереработки Республики Башкортостан" |Method to produce portland cement clinker |CH601128A5|1973-11-08|1978-06-30|Ishikawajima Harima Heavy Ind|Cement powder preheating| DE2712238C2|1977-03-21|1988-05-05|Klöckner-Humboldt-Deutz AG, 5000 Köln|Method and device for the multi-stage burning of cement clinker| EP0048537B1|1980-09-22|1985-03-20|F.L. Smidth & Co. A/S|Kiln plant for burning granular or pulverulent material| AT368477B|1981-04-15|1982-10-11|Voest Alpine Ag|METHOD FOR PRODUCING CEMENT AND DEVICE FOR CARRYING OUT THIS METHOD| AT369720B|1981-05-06|1983-01-25|Voest Alpine Ag|METHOD AND DEVICE FOR CALCINATING RAW FLOUR, ESPECIALLY FOR THE PRODUCTION OF CEMENT| DE3260374D1|1981-10-27|1984-08-16|Voest Alpine Ag|Process and installation for the production of cement| AT375628B|1981-11-03|1984-08-27|Voest Alpine Ag|METHOD FOR PRODUCING CEMENT AND DEVICE FOR CARRYING OUT THE METHOD| DD204469A1|1982-02-22|1983-11-30|Dessau Zementanlagenbau Veb|METHOD AND DEVICE FOR THE HEAT TREATMENT OF FINE-COATED MATERIAL| DD205880A1|1982-08-06|1984-01-11|Dessau Zementanlagenbau Veb|METHOD AND DEVICE FOR THE HEAT TREATMENT AND CALCINATION OF MILK-FORMED MATERIAL| GB8325035D0|1983-09-19|1983-10-19|Smidth & Co As F L|Precalcining pulverous raw material|FR2672514B1|1991-02-08|1993-05-21|Fcb|PROCESS AND PLANT FOR THE HEAT TREATMENT OF PULVERULENT MINERALS, IN PARTICULAR FOR THE CALCINATION OF ALUMINA.| DE10150097B4|2001-10-11|2009-08-20|Khd Humboldt Wedag Gmbh|Multi-strand plant for the production of cement clinker from raw meal| JP6523381B2|2017-07-28|2019-05-29|本田技研工業株式会社|Method of manufacturing metal element for continuously variable transmission|
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申请号 | 申请日 | 专利标题 AT0005785A|AT381694B|1985-01-11|1985-01-11|METHOD AND DEVICE FOR THERMALLY TREATING FINE-GRAINED GOODS, IN PARTICULAR FOR BURNING CEMENT FLOUR|MD94-0073A| MD52C2|1985-01-11|1994-04-05|Process for cement clinker production| 相关专利
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