CN110697716B - Carbonization and activation integrated furnace for producing activated carbon and processing method thereof - Google Patents
Carbonization and activation integrated furnace for producing activated carbon and processing method thereof Download PDFInfo
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- CN110697716B CN110697716B CN201911014640.7A CN201911014640A CN110697716B CN 110697716 B CN110697716 B CN 110697716B CN 201911014640 A CN201911014640 A CN 201911014640A CN 110697716 B CN110697716 B CN 110697716B
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/39—Apparatus for the preparation thereof
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The invention discloses a carbonization and activation integrated furnace for producing active carbon and a processing method thereof, comprising a preparation furnace and a carbonization tube, wherein the right end of the carbonization tube penetrates through the preparation furnace and extends to the right side of the preparation furnace, and an electric heating component is fixedly connected to the inner surface of the carbonization tube positioned in the inner cavity of the preparation furnace. According to the carbonization and activation integrated furnace for producing the activated carbon and the processing method thereof, the electric heating component in the carbonization tube is used for heating, hot air mixed with a large amount of sulfur dioxide and carbon dioxide generated during carbonization of raw materials is conveyed along the first fixed pipeline, the preheating box and the preheating utilization boiler are respectively used for supplying heat, waste heat generated in the carbonization process can be effectively utilized, and the hot air containing a large amount of sulfur dioxide and carbon dioxide is absorbed by the waste heat, and the sulfur dioxide and the carbon dioxide in the hot air are treated and then discharged into the air, so that the energy utilization efficiency and the environmental friendliness of the integrated furnace are improved.
Description
Technical Field
The invention relates to the technical field of active carbon processing, in particular to a carbonization and activation integrated furnace for producing active carbon and a processing method thereof.
Background
The active carbon is a black porous solid carbon, produced by crushing, shaping or carbonizing and activating coal with uniform coal particles, and contains carbon as main component and small amount of oxygen, hydrogen, sulfur, nitrogen, chlorine and other elements, and the specific surface area of the common active carbon is 500-1700 m 2 The activated carbon powder is prepared from high-quality charcoal serving as a raw material through a special production process, two physical methods and a chemical method, and is subjected to refining treatment and crushing to obtain the black powder, wherein the black powder is insoluble in common solution, odorless and tasteless, has the characteristics of large surface area, high adsorption capacity, high purity, high filtering speed, stable quality, flocculation effect, auxiliary filtering effect and the like, and is widely applicable to decolorization, impurity removal and refining of products such as foods, medicines, monosodium glutamate chemical industry and the like.
Most of the carbonization process and the activation process are separated when the existing active carbon processing equipment processes active carbon, most of heat in the internal carbonization process is emitted during processing, the loss of energy sources in the processing process is large, a large amount of sulfur dioxide and carbon dioxide are generated in the carbonization process, and the direct emission can pollute the air.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a carbonization and activation integrated furnace for producing active carbon and a processing method thereof, which solve the problems that most of heat in the internal carbonization process is emitted during processing, the energy loss is great during processing, a large amount of sulfur dioxide and carbon dioxide are generated during the carbonization process, and the direct discharge can pollute the air.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a carbonization activation integrative stove for producing active carbon, includes preparation stove and carbonization pipe, the right-hand member of carbonization pipe runs through the preparation stove and extends to the right side of preparation stove, carbonization pipe is located the interior surface fixedly connected with electrical heating component of preparation stove inner chamber to air guide mouth and feed opening have been seted up respectively to the surface that carbonization pipe is located preparation stove inner chamber, the top of preparation stove from left to right fixedly connected with waste heat utilization boiler, carbon dioxide absorption furnace, sulfur dioxide absorption case and air exhaust fan respectively, carbonization pipe is located the outside surface fixedly connected with preheating box of preparation stove, the top intercommunication of preparation stove has first fixed pipeline to the right-hand member of first fixed pipeline communicates with the left side of waste heat utilization boiler, the surface intercommunication of first fixed pipeline has the fixed pipeline of second to the bottom of the fixed pipeline of second communicates with the surface of preheating box, the inner chamber fixedly connected with first steam circulation pipeline of preheating box, and the one end of first steam circulation pipeline communicates with the bottom of the fixed pipeline of second.
Preferably, the water inlet has been seted up at the top of waste heat utilization boiler to waste heat utilization boiler's top intercommunication has steam delivery pipeline, steam delivery pipeline's right-hand member and the exhaust inlet intercommunication of air extraction fan, waste heat utilization boiler's inner chamber fixedly connected with second hot gas circulation pipeline, and the one end of first fixed pipeline and the one end intercommunication of second hot gas circulation pipeline.
Preferably, the right side of the waste heat utilization boiler is communicated with the left side of the carbon dioxide absorption furnace through a pipeline, the right side of the carbon dioxide absorption furnace is communicated with the left side of the sulfur dioxide absorption box through a pipeline, and the right side of the sulfur dioxide absorption box is communicated with a discharge pipeline.
Preferably, the air outlet of the air extraction fan is communicated with a steam reflux pipeline, and one end of the steam reflux pipeline penetrates through the right side of the preparation furnace and extends to the inner cavity of the preparation furnace.
Preferably, the bottom fixedly connected with motor case of carbide pipe to the inner chamber fixedly connected with driving motor of motor case, the left end of driving motor output shaft runs through the inner chamber of motor case and extends to the left side of motor case, the left side rotation of carbide pipe is connected with the drive shaft to the fixed surface of drive shaft is connected with the pay-off auger, the right-hand member of drive shaft runs through the left side of carbide pipe and extends to the inner chamber of carbide pipe, the surface of drive shaft passes through transmission and is connected with the surface transmission of driving motor output shaft.
Preferably, the surface of the carbonization tube is fixedly connected with a supporting frame, the top of the carbonization tube is communicated with a feed hopper, and the bottom of the inner cavity of the preparation furnace is fixedly connected with an inclined slide plate.
Preferably, the left side of the preparation furnace is communicated with a cooling box through a discharging pipeline.
The invention discloses a processing method of a carbonization and activation integrated furnace for producing active carbon, which comprises the following steps:
step one: the raw materials are introduced into the feeding hopper, the electric heating assembly is started to heat the carbonization tube, the electric heating assembly is controlled by the temperature controller, after the electric heating assembly is heated to a proper temperature, the driving motor is started at the moment, the driving motor drives the driving shaft to rotate through a transmission device matched with the chain wheel and the chain, the driving shaft drives the raw materials to be conveyed through a feeding auger on the surface and conveyed into the preheating box, hot gas of the electric heating assembly flows back into the preheating box at the moment to preheat the raw materials, the raw materials are conveyed into the preparation furnace to be carbonized after being preheated, and the raw materials are carbonized through heat generated by the electric heating assembly;
step two: in the heating process of the raw materials, steam is evaporated and mixed with sulfur dioxide and carbon dioxide to rise along a gas guide port on the surface of a carbonization pipe, the mixture is conveyed into a second hot gas circulation pipeline in a waste heat utilization boiler along a first fixed pipeline, the steam in the waste heat utilization boiler is heated, a part of the mixture is conveyed into the first hot gas circulation pipeline in a preheating box along the second fixed pipeline to preheat the raw materials, water heated by the water in the waste heat utilization boiler generates steam which is pumped into a steam reflux pipeline along a steam conveying pipeline by an air suction fan, at the moment, the carbonized raw materials are conveyed onto an inclined slide plate along a feed opening by a feeding auger, at the moment, steam is introduced from the steam reflux pipeline, the carbonized raw materials are activated by matching with the temperature on the surface of the carbonization pipe, and the activated finished products are conveyed into a cooling box along a discharge pipeline to wait for cooling;
step three: the water vapor mixed with sulfur dioxide and carbon dioxide is conveyed into a carbon dioxide absorbing furnace from a waste heat utilizing boiler along a pipeline, a large amount of concentrated ammonia water is arranged in the carbon dioxide absorbing furnace and used for synthesizing fertilizer ammonium bicarbonate, then the water vapor is conveyed into a sulfur dioxide absorbing box, a large amount of quicklime is arranged in the sulfur dioxide absorbing box to collect sulfur dioxide, and finally the water vapor with harmful gases removed is directly discharged to finish processing.
(III) beneficial effects
The invention provides a carbonization and activation integrated furnace for producing active carbon and a processing method thereof. Compared with the prior art, the method has the following beneficial effects:
(1) According to the carbonization and activation integrated furnace for producing the activated carbon and the processing method thereof, the right end of the carbonization tube penetrates through the preparation furnace and extends to the right side of the preparation furnace, the inner surface of the carbonization tube, which is located in the inner cavity of the preparation furnace, is fixedly connected with an electric heating assembly, an air guide port and a blanking port are respectively formed in the surface of the carbonization tube, the top of the preparation furnace is fixedly connected with a waste heat utilization boiler, a carbon dioxide absorption furnace, a sulfur dioxide absorption tank and an air suction fan from left to right, the surface of the carbonization tube, which is located outside the preparation furnace, is fixedly connected with a preheating tank, the top of the preparation furnace is communicated with a first fixed pipeline, the right end of the first fixed pipeline is communicated with the left side of the waste heat utilization boiler, the surface of the first fixed pipeline is communicated with a second fixed pipeline, the bottom end of the second fixed pipeline is communicated with the surface of the preheating tank, the inner cavity of the preheating tank is fixedly connected with a first hot air circulation pipeline, one end of the first circulation pipeline is communicated with the bottom of the second fixed pipeline, the electric heating assembly in the carbonization tube is used for heating, and hot air mixed with a large amount of sulfur dioxide and carbon dioxide generated during carbonization is conveyed along the first fixed pipeline, the preheating tank is used for preheating the waste heat and the carbon dioxide, the waste heat can be effectively utilized, the heat can be effectively and the heat can be discharged and the heat can be effectively and the heat can be absorbed by the waste heat can be effectively and the heat can be discharged and the heat can be effectively and the heat can be absorbed and the heat can be processed and the environment is greatly processed.
(2) According to the carbonization and activation integrated furnace for producing the activated carbon and the processing method thereof, the motor box is fixedly connected to the bottom of the carbonization tube, the driving motor is fixedly connected to the inner cavity of the motor box, the left end of the output shaft of the driving motor penetrates through the inner cavity of the motor box and extends to the left side of the motor box, the driving shaft is rotationally connected to the left side of the carbonization tube, the feeding auger is fixedly connected to the surface of the driving shaft, the right end of the driving shaft penetrates through the left side of the carbonization tube and extends to the inner cavity of the carbonization tube, the driving shaft is in transmission connection with the surface of the output shaft of the driving motor through the transmission device, the driving shaft is driven to rotate through the driving motor, raw materials are conveyed through the feeding auger, the conveying speed is adjustable, the situation of congestion cannot occur, the raw materials can be overturned during conveying, the raw materials can be heated more uniformly, and the processing efficiency of the integrated furnace is improved.
(3) According to the carbonization and activation integrated furnace for producing the activated carbon and the processing method thereof, the support frame is fixedly connected to the surface of the carbonization tube, the top of the carbonization tube is communicated with the feed hopper, the bottom of the inner cavity of the preparation furnace is fixedly connected with the inclined slide plate, the left side of the preparation furnace is communicated with the cooling box through the discharge pipeline, the waste heat in the carbonization process is used for heating the waste heat utilization boiler, the raw materials are activated through water vapor, the carbonized raw materials are activated through the waste heat in the surface of the carbonization tube, the carbonization and the activation are connected together, heat supply of all working procedures can be carried out only by one electric heating assembly, and the practicability of the integrated furnace is improved.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a cross-sectional view of the structure of the present invention;
FIG. 3 is a cross-sectional view of the structure of the preheating tank of the present invention;
FIG. 4 is a cross-sectional view of the structure of the heat recovery boiler of the present invention;
FIG. 5 is an enlarged view of a partial structure at A in FIG. 2 according to the present invention;
fig. 6 is an enlarged view of a partial structure at B in fig. 2 according to the present invention.
In the figure, a 1-preparation furnace, a 2-carbonization tube, a 3-electric heating component, a 4-air guide port, a 5-blanking port, a 6-waste heat utilization boiler, a 7-carbon dioxide absorption furnace, an 8-sulfur dioxide absorption box, a 9-air extraction fan, a 10-preheating box, a 11-first fixed pipeline, a 12-second fixed pipeline, a 13-first hot gas circulation pipeline, a 14-steam conveying pipeline, a 15-second hot gas circulation pipeline, a 16-steam backflow pipeline, a 17-motor box, a 18-driving motor, a 19-driving shaft, a 20-feeding auger, a 21-transmission device, a 22-supporting frame, a 23-inclined slide plate, a 24-discharging pipeline and a 25-cooling box.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the embodiment of the present invention provides a technical solution: the carbonization and activation integrated furnace for producing active carbon comprises a preparation furnace 1 and a carbonization tube 2, wherein the left side of the preparation furnace 1 is communicated with a cooling box 25 through a discharge pipeline 24, the surface of the carbonization tube 2 is fixedly connected with a support frame 22, the top of the carbonization tube 2 is communicated with a feed hopper, the bottom of an inner cavity of the preparation furnace 1 is fixedly connected with an inclined slide plate 23, the waste heat in the carbonization process is used for heating a waste heat utilization boiler 6, raw materials are activated through steam, the carbonized raw materials are activated through the waste heat in the surface of the carbonization tube 2, carbonization and activation are connected together, heat supply of all working procedures can be carried out only by one electric heating assembly 3, the practicability of the integrated furnace is increased, the bottom of the carbonization tube 2 is fixedly connected with a motor box 17, the inner cavity of the motor box 17 is fixedly connected with a driving motor 18, the driving motor 18 is communicated with a power supply, the left end of the output shaft of the driving motor 18 penetrates through the inner cavity of the motor box 17 and extends to the left side of the motor box 17, the left side of the carbonization tube 2 is rotationally connected with a driving shaft 19, the surface of the driving shaft 19 is fixedly connected with a feeding auger 20, the driving shaft 19 is driven to rotate by the driving motor 18, raw materials are conveyed through the feeding auger 20, the conveying speed is adjustable, the situation of congestion does not occur, the raw materials can be overturned during conveying, the raw materials can be heated more uniformly, the processing efficiency of the integral furnace is improved, the right end of the driving shaft 19 penetrates through the left side of the carbonization tube 2 and extends to the inner cavity of the carbonization tube 2, the surface of the driving shaft 19 is in transmission connection with the surface of the output shaft of the driving motor 18 through a transmission device 21, the right end of the carbonization tube 2 penetrates through the preparation furnace 1 and extends to the right side of the preparation furnace 1, the inner surface of the carbonization tube 2 positioned in the inner cavity of the preparation furnace 1 is fixedly connected with an electric heating assembly 3, the electric heating component 3 is communicated with a power supply, the surface of the carbonization tube 2 in the inner cavity of the preparation furnace 1 is respectively provided with a gas guide port 4 and a blanking port 5, the top of the preparation furnace 1 is respectively fixedly connected with a waste heat utilization boiler 6, a carbon dioxide absorption furnace 7, a sulfur dioxide absorption box 8 and an air suction fan 9 from left to right, the air suction fan 9 is communicated with the power supply, the air outlet of the air suction fan 9 is communicated with a steam reflux pipeline 16, one end of the steam reflux pipeline 16 penetrates the right side of the preparation furnace 1 and extends to the inner cavity of the preparation furnace 1, the right side of the waste heat utilization boiler 6 is communicated with the left side of the carbon dioxide absorption furnace 7 through a pipeline, the right side of the carbon dioxide absorption furnace 7 is communicated with the left side of the sulfur dioxide absorption box 8 through a pipeline, the right side of the sulfur dioxide absorption box 8 is communicated with a discharge pipeline, the top of the waste heat utilization boiler 6 is provided with a water inlet, and the top of the waste heat utilization boiler 6 is communicated with a steam conveying pipeline 14, the right end of the steam conveying pipeline 14 is communicated with an exhaust port of the exhaust fan 9, the inner cavity of the waste heat utilization boiler 6 is fixedly connected with a second hot gas circulation pipeline 15, one end of a first fixed pipeline 11 is communicated with one end of the second hot gas circulation pipeline 15, the surface of the carbonization pipe 2 positioned outside the preparation furnace 1 is fixedly connected with a preheating box 10, the top of the preparation furnace 1 is communicated with the first fixed pipeline 11, the right end of the first fixed pipeline 11 is communicated with the left side of the waste heat utilization boiler 6, the surface of the first fixed pipeline 11 is communicated with a second fixed pipeline 12, the bottom end of the second fixed pipeline 12 is communicated with the surface of the preheating box 10, the inner cavity of the preheating box 10 is fixedly connected with a first hot gas circulation pipeline 13, one end of the first hot gas circulation pipeline 13 is communicated with the bottom end of the second fixed pipeline 12, the electric heating assembly 3 in the carbonization tube 2 is used for heating, hot air mixed with a large amount of sulfur dioxide and carbon dioxide generated during carbonization of raw materials is conveyed along the first fixed pipeline 11, heat is supplied to the preheating box 10 and the preheating utilization boiler 6 respectively, waste heat generated in the carbonization process can be effectively utilized, and the hot air containing a large amount of sulfur dioxide and carbon dioxide is absorbed by the waste heat, and is treated with the sulfur dioxide and the carbon dioxide in the hot air and then discharged into the air, so that the energy utilization efficiency and the environmental protection of the integrated furnace are improved.
The invention discloses a processing method of a carbonization and activation integrated furnace for producing active carbon, which comprises the following steps:
step one: raw materials are fed into the feeding hopper, the electric heating assembly 3 is started to heat the carbonization tube 2, the electric heating assembly 3 is controlled by the temperature controller, after the electric heating assembly 3 is heated to a proper temperature, the driving motor 18 is started at the moment, the driving motor 18 drives the driving shaft 19 to rotate through the transmission device 21 matched with the chain wheel and the chain, the driving shaft 19 drives the raw materials to be conveyed through the feeding auger 20 on the surface and conveyed into the preheating box 10, hot gas of the electric heating assembly 3 flows back into the preheating box 10 at the moment to preheat the raw materials, the raw materials are conveyed into the preparation furnace 1 to be carbonized after preheating is finished, and the carbonization is carried out through heat generated by the electric heating assembly 3;
step two: in the heating process of the raw materials, the vapor evaporates and mixes sulfur dioxide and carbon dioxide to rise along the air guide opening 4 on the surface of the carbonization tube 2, the vapor is conveyed into the second hot air circulation pipeline 15 in the waste heat utilization boiler 6 along the first fixed pipeline 11, the vapor in the waste heat utilization boiler 6 is heated, a part of the vapor is conveyed into the first hot air circulation pipeline 13 in the preheating box 10 along the second fixed pipeline 12, the raw materials are preheated, the water in the waste heat utilization boiler 6 is heated to generate vapor, the vapor is pumped into the vapor return pipeline 16 along the vapor conveying pipeline 14 by the air suction fan 9, at the moment, the carbonized raw materials are conveyed onto the inclined slide plate 23 along the blanking opening 5 by the feeding auger 20, at the moment, vapor is introduced from the vapor return pipeline 16, the carbonized raw materials are activated by matching with the temperature on the surface of the carbonization tube 2, and the activated finished products are conveyed into the cooling box 25 along the discharging pipeline 24, and wait for cooling;
step three: the water vapor mixed with sulfur dioxide and carbon dioxide is conveyed into a carbon dioxide absorbing furnace 7 from a waste heat utilizing boiler 6 along a pipeline, a large amount of concentrated ammonia water is arranged in the carbon dioxide absorbing furnace 7 and used for synthesizing fertilizer ammonium bicarbonate, then the water vapor is conveyed into a sulfur dioxide absorbing box 8, a large amount of quicklime is arranged in the sulfur dioxide absorbing box 8 to collect sulfur dioxide, and finally the water vapor with harmful gases removed is directly discharged to finish processing.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a production carbomorphism activation integrative stove for active carbon, includes preparation stove (1) and carbonization pipe (2), the right-hand member of carbonization pipe (2) runs through preparation stove (1) and extends to the right side of preparation stove (1), its characterized in that: the carbonization tube (2) is fixedly connected with the electric heating assembly (3) on the inner surface of the inner cavity of the preparation furnace (1), an air guide port (4) and a discharging port (5) are respectively formed in the surface of the inner cavity of the preparation furnace (1), the waste heat utilization boiler (6), the carbon dioxide absorption furnace (7), the sulfur dioxide absorption box (8) and the air suction fan (9) are respectively fixedly connected with the top of the preparation furnace (1) from left to right, the preheating box (10) is fixedly connected with the surface of the outer portion of the preparation furnace (1), a first fixed pipeline (11) is communicated with the top of the preparation furnace (1), the right end of the first fixed pipeline (11) is communicated with the left side of the waste heat utilization boiler (6), a second fixed pipeline (12) is communicated with the surface of the preheating box (10), a first hot gas circulation pipeline (13) is fixedly connected with the inner cavity of the preheating box (10), and the right end of the first circulation pipeline (13) is communicated with the bottom end of the second fixed pipeline (12);
the top of the waste heat utilization boiler (6) is provided with a water inlet, the top of the waste heat utilization boiler (6) is communicated with a steam conveying pipeline (14), the right end of the steam conveying pipeline (14) is communicated with an exhaust port of an exhaust fan (9), the inner cavity of the waste heat utilization boiler (6) is fixedly connected with a second hot gas circulating pipeline (15), and one end of a first fixed pipeline (11) is communicated with one end of the second hot gas circulating pipeline (15);
the bottom fixedly connected with motor case (17) of carbide pipe (2) to the inner chamber fixedly connected with driving motor (18) of motor case (17), the left end of driving motor (18) output shaft runs through the inner chamber of motor case (17) and extends to the left side of motor case (17), the left side rotation of carbide pipe (2) is connected with drive shaft (19) to the surface fixedly connected with pay-off auger (20) of drive shaft (19), the right-hand member of drive shaft (19) runs through the left side of carbide pipe (2) and extends to the inner chamber of carbide pipe (2), the surface of drive shaft (19) is connected with the surface transmission of driving motor (18) output shaft through transmission (21), the surface fixedly connected with support frame (22) of carbide pipe (2) to the top intercommunication of carbide pipe (2) has the feeder hopper, the bottom fixedly connected with slide (23) of preparation stove (1) inner chamber.
2. The carbonization and activation integrated furnace for producing activated carbon according to claim 1, characterized in that: the right side of the waste heat utilization boiler (6) is communicated with the left side of the carbon dioxide absorption furnace (7) through a pipeline, the right side of the carbon dioxide absorption furnace (7) is communicated with the left side of the sulfur dioxide absorption box (8) through a pipeline, and the right side of the sulfur dioxide absorption box (8) is communicated with a discharge pipeline.
3. The carbonization and activation integrated furnace for producing activated carbon according to claim 2, characterized in that: the air outlet of the air extraction fan (9) is communicated with a steam backflow pipeline (16), and one end of the steam backflow pipeline (16) penetrates through the right side of the preparation furnace (1) and extends to the inner cavity of the preparation furnace (1).
4. A carbonization and activation integrated furnace for producing activated carbon according to claim 3, characterized in that: the left side of the preparation furnace (1) is communicated with a cooling box (25) through a discharge pipeline (24).
5. A method of operating an integrated carbonization and activation oven for producing activated carbon as set forth in claim 4, characterized in that: the method specifically comprises the following steps:
step one: the raw materials are introduced into the feeding hopper, the electric heating assembly (3) is started to heat the carbonization tube (2), the electric heating assembly (3) is controlled by the temperature controller, after the electric heating assembly is heated to a proper temperature, the driving motor (18) is started, the driving motor (18) drives the driving shaft (19) to rotate through a transmission device (21) with a chain wheel and a chain, the driving shaft (19) drives the raw materials to be conveyed into the preheating box (10) through a feeding auger (20) on the surface, hot air of the electric heating assembly (3) flows back into the preheating box (10) to preheat the raw materials, and after preheating is finished, the raw materials are conveyed into the preparation furnace (1) to be carbonized, and heat generated by the electric heating assembly (3) is carbonized;
step two: in the heating process of the raw materials, steam is evaporated and mixed with sulfur dioxide and carbon dioxide to rise along a gas guide opening (4) on the surface of a carbonization tube (2), the mixture is conveyed into a second hot gas circulation pipeline (15) in a waste heat utilization boiler (6) along a first fixed pipeline (11), the steam in the waste heat utilization boiler (6) is heated, a part of the mixture is conveyed into a first hot gas circulation pipeline (13) in a preheating box (10) along a second fixed pipeline (12), the raw materials are preheated, water in the waste heat utilization boiler (6) is heated to generate steam, the steam is pumped into a steam return pipeline (16) by a suction fan (9) along a steam conveying pipeline (14), at the moment, a feeding auger (20) conveys the carbonized raw materials to a bevel slide plate (23) along a blanking opening (5), at the moment, steam is introduced from the steam return pipeline (16), the mixture is matched with the temperature of the surface of the carbonization tube (2) to activate the carbonized raw materials, and the activated raw materials are conveyed into a cooling box (25) along a discharging pipeline (24) to wait for cooling;
step three: the water vapor mixed with sulfur dioxide and carbon dioxide is conveyed into a carbon dioxide absorbing furnace (7) from a waste heat utilizing boiler (6) along a pipeline, a large amount of concentrated ammonia water is arranged in the carbon dioxide absorbing furnace (7) and used for synthesizing fertilizer ammonium bicarbonate, then the water vapor is conveyed into a sulfur dioxide absorbing box (8), a large amount of quicklime is arranged in the sulfur dioxide absorbing box (8) to collect sulfur dioxide, and finally the water vapor with harmful gases removed is directly discharged to finish processing.
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| CN109718660A (en) * | 2019-01-09 | 2019-05-07 | 中国神华能源股份有限公司 | Circulating fluidized bed boiler and sulfur method |
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