A device for treating VOCs exhaust gas for coke oven and a method thereof

Abstract

The application discloses a VOCs waste gas treatment device for coke ovens and a method thereof, which comprises an air inlet pipe, an air outlet pipe, a first heat storage chamber, a second heat storage chamber and a combustion chamber, a plurality of support plates are arranged in the first heat storage chamber and the second heat storage chamber, a plurality of ventilation grooves are arranged on the support plates, heat storage ceramics are arranged on the ventilation grooves, a first adjusting box is arranged on one side of the first heat storage chamber and the second heat storage chamber, a plurality of first adjusting plates are arranged in the first adjusting box, a first push plate is arranged in the first adjusting box, a second adjusting box is arranged on the other side of the first heat storage chamber and the second heat storage chamber, a plurality of second adjusting plates are arranged in the second adjusting box, and a second push plate is arranged in the second adjusting box. The design of the heat storage chamber and the combustion chamber can recycle the waste heat of combustion by using the heat storage and release mode of the heat storage ceramics, and can automatically heat and warm the newly-entered waste gas, so that the waste gas treatment is realized, the fuel required in the waste gas warming process is reduced, and energy saving, emission reduction, carbon reduction and efficiency increase are realized.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of waste gas treatment, and particularly relates to a VOCs waste gas treatment device for coke ovens and a method thereof. BACKGROUND

[0002] A coke oven is a key production facility for coking. During the production process of the coke oven, flue gas containing dust, VOCs gas and the like is continuously or intermittently generated from a coke side oven door, a bottom of an ascending pipe, a coal charging hole on a top of the oven, a fire watching hole and the like of the coke oven. The VOCs waste gas is complex in composition and contains various volatile organic compounds such as benzene, toluene, xylene and the like.

[0003] When the VOCs waste gas is treated, a combustion method is usually used to treat the waste gas. However, the present inventor found that in the combustion purification process, most of the existing devices lack an efficient heat recovery mechanism, and a large amount of heat in the high-temperature flue gas is directly lost, which causes great waste of energy, increases the production cost of enterprises, and is seriously energy-wasting.

[0004] Therefore, the present application is researched and improved in view of the existing structure and defects, and provides a VOCs waste gas treatment device for coke ovens and a method thereof, so as to achieve the purpose of being more practical. SUMMARY

[0005] In view of at least one problem in the prior art, one purpose of the present application is to provide a VOCs waste gas treatment device for coke ovens and a method thereof.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0007] The utility model provides a VOCs waste gas treatment device for coke oven, including multi -pollutant collaborative processing equipment, waste heat recovery boiler, desulfurization equipment and cloth bag dust collecting equipment, the waste gas passes through multi -pollutant collaborative processing equipment and is treated, passes through desulfurization equipment and is desulfurized again, and is emitted after passing through cloth bag dust collecting equipment and is dedusted, the waste heat recovery boiler is used for the recycling of heat in the gas after multi -pollutant collaborative processing equipment processing, the multi -pollutant collaborative processing equipment includes air inlet pipe, exhaust pipe, first regenerator, second regenerator and combustion chamber, the combustion chamber is connected with first regenerator and second regenerator upper end, the air inlet pipe is equipped with the air inlet branch pipe that communicates respectively with first regenerator and second regenerator bottom air inlet end, the exhaust pipe is equipped with the exhaust branch pipe that communicates respectively with first regenerator and second regenerator bottom exhaust end, control valve is equipped in the air inlet branch pipe and exhaust branch pipe, first regenerator and second regenerator are equipped with a plurality of fixedly connected support plate in, the support plate is equipped with a plurality of long strip and is used for the ventilation groove of airflow passing, the ventilation groove is equipped with the heat storage ceramic that is evenly distributed and is in the shape of cuboid, first regenerator and second regenerator one side are equipped with the first regulating tank that communicates, be equipped with a plurality of with support plate corresponding and can come and go first adjusting plate in the first regulating tank, and be equipped with the first push plate that can come and go and is used for heat storage ceramic push in the first regulating tank, first regenerator and second regenerator other side are equipped with the second regulating tank that communicates, be equipped with a plurality of with support plate corresponding and can come and go second adjusting plate in the second regulating tank, and be equipped with the second push plate that can come and go and is used for heat storage ceramic push in the second regulating tank, first push plate and second push plate staggered distribution.

[0008] Preferably, the support plate is equipped with a limiting groove on both sides, a limiting plate is slidably connected in the limiting groove, the limiting plate is fixedly connected with the corresponding first adjusting plate and second adjusting plate, a reciprocating screw rod is rotatably arranged in the limiting groove, a limiting hole is formed through the limiting plate, and the limiting hole is matched with the reciprocating screw rod.

[0009] Preferably, a drive motor is arranged at the bottom of the first adjusting tank and the second adjusting tank, a transmission shaft is arranged at the output end of the drive motor, a turbine is fixedly connected at the end of the reciprocating screw rod, and a worm is fixedly connected with the turbine and matched with the turbine.

[0010] Preferably, a first hydraulic rod is fixedly connected in the first adjusting tank, the first hydraulic rod is fixedly connected with the first push plate, a second hydraulic rod is fixedly connected in the second adjusting tank, and the second hydraulic rod is fixedly connected with the second push plate.

[0011] Preferably, the first adjusting plate is provided with a plurality of suction grooves for sucking impurities of the heat storage ceramic bottom, a suction fan is arranged between the first heat storage chamber and the second heat storage chamber, an output end of the suction fan is provided with a conveying pipe, the conveying pipe is communicated with the combustion chamber, an air inlet end of the suction fan is provided with a suction pipe, and the suction pipe is communicated with the suction grooves.

[0012] Preferably, the first adjusting plate is provided with a suction hole at one end, the side wall of the suction groove is provided with a communication groove communicated with the suction hole, and the end of the suction hole is provided with a suction branch pipe communicated and telescopic.

[0013] Preferably, the support plates arranged at both ends of the ventilation groove are both provided with a first sliding plate fixedly connected, the first adjusting plate and the second adjusting plate are both provided with a second sliding plate fixedly connected and corresponding to the first sliding plate, and the heat storage ceramic bottom is provided with a sliding groove slidably connected with the first sliding plate and the second sliding plate.

[0014] Preferably, the second sliding plate is provided with a roller rotatable and used for driving the heat storage ceramic to move.

[0015] Preferably, the adjacent rollers are connected through a chain, the adjacent rollers arranged above and below are connected through a chain, the first adjusting plate and the second adjusting plate are both provided with a first motor, and an output end of the first motor is connected with one of the rollers.

[0016] A VOCs waste gas treatment method for coke ovens, using the VOCs waste gas treatment device for coke ovens, comprising the following steps:

[0017] S1, the waste gas enters the first heat storage chamber through the air inlet pipe and the air inlet branch pipe, then enters the combustion chamber for combustion through the first heat storage chamber, and after combustion, the hot gas flow passes through the heat storage ceramic of the second heat storage chamber and then enters the exhaust pipe through the exhaust branch pipe for exhaust;

[0018] S2, in the air inlet process, the air flow enters the bottom of the second heat storage chamber through the switching of the control valve, then passes through the heat storage ceramic and enters the combustion chamber for combustion, since the heat storage ceramic stores a certain amount of heat when the hot gas flow passes through the heat storage ceramic in step S1, the heat storage ceramic can heat the air flow after the air flow passes through the heat storage ceramic, so that the waste heat of the combustion gas flow can be recovered, the exhaust temperature is reduced, the air flow entering the combustion chamber can be heated, the consumption of fuel in the waste gas heating process is saved, the combustion gas flow passes through the heat storage ceramic in the first heat storage chamber, the heat storage ceramic can recover the heat in the combustion gas flow, and finally the combustion gas flow is exhausted through the exhaust pipe; in this way, the first heat storage chamber and the second heat storage chamber are switched in turn to carry out the processes of heat storage and heat release, and work continuously and alternately.

[0019] S3, in the process of heat storage or heat release of the heat storage ceramics, the first push plate is controlled to push the heat storage ceramics on the first adjusting plate to the side of the supporting plate, the heat storage ceramics on the other side of the supporting plate is pushed into the corresponding second adjusting plate, then the second adjusting plate is controlled to move to the second push plate, the second push plate is controlled to push the heat storage ceramics on the second adjusting plate to the supporting plate and push the heat storage ceramics on the other side to the first adjusting plate, through the continuous circulation and reciprocation, the heat storage ceramics can move, the heat storage ceramics at the edge can enter the center, the heat storage ceramics at the center can move to the edge, and the uneven contact of the heat storage ceramics and the airflow can be effectively solved, and each heat storage ceramic can fully store and release heat.

[0020] S4, the treated gas is subjected to semi-dry desulfurization treatment through a desulfurization device, and then is subjected to dust removal through a bag dust removal device.

[0021] Compared with the prior art, the present application has the following technical effects:

[0022] The design of the heat storage chamber and the combustion chamber can recycle the waste heat of combustion and automatically heat the newly entering waste gas by using the heat storage and heat release mode of the heat storage ceramics, so that the waste gas treatment is realized, the fuel required in the waste gas heating process is reduced, energy saving, emission reduction, carbon reduction and efficiency increase are realized.

[0023] Since the traditional heat storage ceramics are fixed, and the airflow passes through the heat storage ceramics, due to the different pipe diameters, the airflow preferentially passes through the middle heat storage ceramics, and the edge heat storage ceramics rarely have airflow passing through, so that the heat storage ceramics cannot fully recover the heat of the airflow and cannot fully heat the airflow, and the design of the supporting plate, the first adjusting plate, the second adjusting plate, the first push plate and the second push plate can make the original fixed heat storage ceramics move, the middle heat storage ceramics can move to the edge, and the edge heat storage ceramics can move to the middle, so that each heat storage ceramic can fully store heat and fully release heat after heat storage.

[0024] The specific embodiments of the present application are disclosed in detail in the following description and drawings, and the principles of the present application can be adopted in the manner indicated. It should be understood that the embodiments of the present application are not limited in scope as a result.

[0025] Features described and / or illustrated with respect to one implementation can be used in the same or similar manner in one or more other implementations, in combination with or in place of features in other implementations, or in place of or in addition to features described and / or illustrated with respect to other implementations.

[0026] It should be emphasized that the term comprises / comprising, when used in this specification, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0028] Figure 1 The process flow chart provided by the present application.

[0029] Figure 2 The three-dimensional structure schematic diagram provided by the present application.

[0030] Figure 3 The three-dimensional connection structure schematic diagram of the first adjusting box and the first adjusting plate provided by the present application.

[0031] Figure 4 The three-dimensional connection structure schematic diagram of the heat storage ceramic, the first adjusting plate and the second adjusting plate provided by the present application.

[0032] Figure 5 The three-dimensional connection structure schematic diagram of the support plate, the first adjusting plate and the second adjusting plate provided by the present application.

[0033] Figure 6 The three-dimensional connection structure schematic diagram of the first adjusting plate and the reciprocating screw rod provided by the present application.

[0034] Figure 7 The three-dimensional connection structure schematic diagram of the first adjusting plate provided by the present application.

[0035] Figure 8 The three-dimensional connection structure schematic diagram of the roller and the second sliding plate provided by the present application.

[0036] Explanation of reference numerals in the drawings: 1, first regenerator; 2, combustion chamber; 3, second regenerator; 4, first adjusting box; 41, first adjusting plate; 411, suction groove; 412, second sliding plate; 413, suction hole; 414, communication groove; 415, roller; 416, chain; 42, first pushing plate; 43, first hydraulic rod; 5, second adjusting box; 51, second adjusting plate; 52, second hydraulic rod; 53, second pushing plate; 6, air inlet pipe; 7, air outlet pipe; 8, suction fan; 81, suction pipe; 82, conveying pipe; 83, suction sub-pipe; 9, regenerative ceramic; 91, supporting plate; 92, limiting groove; 921, reciprocating screw rod; 922, worm; 923, driving motor; 924, conveying shaft; 93, first sliding plate; 95, ventilation groove; 96, limiting plate; 97, limiting hole. DETAILED DESCRIPTION

[0037] In order to make the personnel in the technical field better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person of ordinary skill in the art without making creative efforts should belong to the protection scope of the present application.

[0038] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there can be another element interposed. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be another element interposed. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0040] Example 1, please refer to Figure 1 , Figure 2 and Figure 3 , Figure 4 , Figure 5The utility model provides a VOCs exhaust treatment device for coke oven, including multi -pollutant collaborative processing equipment, waste heat recovery boiler, desulfurization equipment and cloth bag dust collecting equipment, the exhaust is through multi -pollutant collaborative processing equipment processing, through desulfurization equipment desulfurization again, emits after being through cloth bag dust collecting equipment dedusting, the waste heat recovery boiler is used for the recycling of heat in the gas of multi -pollutant collaborative processing equipment processing, the multi -pollutant collaborative processing equipment includes air inlet pipe 6, exhaust pipe 7, first regenerator 1, second regenerator 3 and combustion chamber 2, the combustion chamber 2 with first regenerator 1 and second regenerator 3 upper end intercommunication, the air inlet pipe 6 is equipped with the air inlet branch pipe that communicates respectively with first regenerator 1 and second regenerator 3 bottom air inlet end, the exhaust pipe 7 is equipped with the exhaust branch pipe that communicates respectively with first regenerator 1 and second regenerator 3 bottom exhaust end, the air inlet branch pipe and exhaust branch pipe are equipped with control valve in, first regenerator 1 and second regenerator 3 are equipped with a plurality of fixedly connected support plate 91 in, the support plate 91 is equipped with a plurality of long strip and is used for the ventilation groove 95 of airflow, the ventilation groove 95 is equipped with the heat storage ceramic 9 that is evenly distributed and is in the shape of cuboid, first regenerator 1 and second regenerator 3 one side are equipped with the first regulating tank 4 that is connected with intercommunication, the first regulating tank 4 is equipped with a plurality of with support plate 91 corresponding and can come and go first adjusting plate 41, and first regulating tank 4 is equipped with the first push plate 42 that can come and go and is used for heat storage ceramic 9 push, first regenerator 1 and second regenerator 3 other side are equipped with the second regulating tank 5 that is connected with intercommunication, the second regulating tank 5 is equipped with a plurality of with support plate 91 corresponding and can come and go second adjusting plate 51, and second regulating tank 5 is equipped with the second push plate 53 that can come and go and is used for heat storage ceramic 9 push, the first push plate 42 and second push plate 53 staggered distribution. Wherein, exhaust includes high oxygen VOCs, coke oven flue gas, dry quenching coke flue gas, the carbon monoxide content of dry quenching coke flue gas pipe is 4-12% VOL, the non -methane total hydrocarbon content is 100-350mg / Nm 3 , the non -methane total hydrocarbon content of high oxygen VOCs pipe is 2000-4000mg / Nm 3 , the carbon monoxide content of flue gas pipe is 1000-5000mg / Nm 3 . After mixing the above three exhaust gas, CO content is about 7000mg / Nm 3 .

[0041] The design of regenerator and combustion chamber 2 can utilize the heat storage and heat release mode of heat storage ceramic 9 to recycle the waste heat of combustion and automatically heat the newly entering exhaust gas, which realizes the treatment of exhaust gas and reduces the fuel required in the heating process of exhaust gas, thereby achieving energy saving, emission reduction, carbon reduction and efficiency increase.

[0042] Since the traditional heat storage ceramic 9 is fixed, and the airflow passes through the heat storage ceramic 9, due to the different pipe diameters, the airflow preferentially passes through the middle heat storage ceramic 9, and the edge heat storage ceramic 9 has little airflow passing through, so that the heat storage ceramic 9 cannot fully recover heat from the airflow, and cannot fully heat the airflow. The design of the support plate 91, the first adjusting plate 41, the second adjusting plate 51, the first push plate 42 and the second push plate 53 can move the original fixed heat storage ceramic 9, so that the middle heat storage ceramic 9 can move to the edge, and the edge heat storage ceramic 9 can move to the middle, and can circulate, so that each heat storage ceramic 9 can fully store heat and fully release heat after heat storage.

[0043] Please refer to Figure 4 , Figure 5 and Figure 6 In this embodiment, the support plate 91 is provided with a limiting groove 92 on both sides, the limiting groove 92 is provided with a limiting plate 96 connected slidingly, the limiting plate 96 is fixedly connected with the corresponding first adjusting plate 41 and second adjusting plate 51 respectively, the limiting groove 92 is provided with a reciprocating screw rod 921 rotatably, the limiting plate 96 is provided with a penetrating limiting hole 97, and the limiting hole 97 is matched and connected with the reciprocating screw rod 921.

[0044] The reciprocating screw rod 921 can realize the periodic reciprocating movement of the first adjusting plate 41 and the second adjusting plate 51 through the rotation of the reciprocating screw rod 921.

[0045] Please refer to Figure 5 , Figure 6 and Figure 7 In this embodiment, the first adjusting box 4 and the second adjusting box 5 are provided with a driving motor 923 at the bottom, the driving motor 923 is provided with a conveying shaft 924 at the output end, the reciprocating screw rod 921 is provided with a fixedly connected turbine at the end, and the conveying shaft 924 is provided with a fixedly connected worm 922 matched with the turbine. The design of the turbine worm 922 can drive the vertical conveying shaft 924 to rotate by the driving motor 923, so as to drive the turbine to rotate through the worm 922, drive the reciprocating screw rod 921 to rotate synchronously, and realize the synchronous movement of the reciprocating screw rod 921.

[0046] Please refer to Figure 4 In this embodiment, the first adjusting box 4 is provided with a fixedly connected first hydraulic rod 43, the first hydraulic rod 43 is fixedly connected with the first push plate 42, the second adjusting box 5 is provided with a fixedly connected second hydraulic rod 52, and the second hydraulic rod 52 is fixedly connected with the second push plate 53.

[0047] Please refer to Figure 5 , Figure 6 and Figure 7 , in this embodiment, the first adjusting plate 41 is provided with a plurality of suction grooves 411 for sucking the impurities at the bottom of the heat accumulating ceramic 9, a suction fan 8 is arranged between the first heat accumulating chamber 1 and the second heat accumulating chamber 3, the output end of the suction fan 8 is provided with a conveying pipe 82, the conveying pipe 82 is communicated with the combustion chamber 2, the air inlet end of the suction fan 8 is provided with a suction pipe 81, and the suction pipe 81 is communicated with the suction grooves 411.

[0048] The design of the suction grooves 411, the suction fan 8 and the conveying pipe 82 can utilize the negative pressure generated by the suction fan 8 to automatically suck the bottom of the heat accumulating ceramic 9 through the suction grooves 411. This suction method can automatically clean the impurities at the bottom of the heat accumulating ceramic 9, effectively preventing the accumulation of impurities at the bottom of the heat accumulating ceramic 9, which affects the passing efficiency of the airflow. The design of the conveying pipe 82 can convey the sucked materials to the combustion chamber 2 through the conveying pipe 82 for full combustion and automatic discharge.

[0049] Please refer to Figure 5 , Figure 6 and Figure 7 , in this embodiment, one end of the first adjusting plate 41 is provided with a suction hole 413, the side wall of the suction groove 411 is provided with a communication groove 414 communicated with the suction hole 413, the end of the suction hole 413 is provided with a suction branch pipe 83 communicated and telescopic, and the suction branch pipe 83 is communicated with the corresponding suction pipe 81. The addition of the suction branch pipe 83 does not affect the back and forth movement of the first adjusting plate 41, and at the same time ensures the automatic suction of the suction groove 411.

[0050] In this embodiment, the support plate 91 located at both ends of the ventilation groove 95 is provided with a first sliding plate 93 fixedly connected, the first adjusting plate 41 and the second adjusting plate 51 are provided with a second sliding plate 412 fixedly connected and corresponding to the first sliding plate 93, and the bottom of the heat accumulating ceramic is provided with a sliding groove slidably connected with the first sliding plate and the second sliding plate 412.

[0051] The design of the first sliding plate 93, the second sliding plate 412 and the sliding groove can ensure the stability of the heat accumulating ceramic 9 during movement, so that the heat accumulating ceramic 9 can realize precise movement and will not deviate, effectively preventing the heat accumulating ceramic 9 from deviating during movement and causing the heat accumulating ceramic 9 to fail to operate normally.

[0052] Please refer to Figure 8In this embodiment, each of the second slide plates 412 is provided with a rotatable roller 415 for driving the thermal storage ceramic 9. The roller design enables the thermal storage ceramic 9 to be automatically separated from the adjacent thermal storage ceramic 9 after being extruded and transported onto the first adjustment plate 41 or the second adjustment plate 51. This prevents interference between the thermal storage ceramics 9 during movement of the first adjustment plate 41 and the second adjustment plate 51, thereby ensuring the stability of the thermal storage ceramic 9 during operation.

[0053] See also Figure 8 In this embodiment, adjacent rollers 415 are connected by a chain 416, and upper and lower adjacent rollers 415 are connected by a chain 416. A first motor is provided on the first adjustment plate 41 and the second adjustment plate 51, and the output end of the first motor is connected to one of the rollers 415.

[0054] When using this application:

[0055] When it is necessary to control the operation of the heat storage ceramic 9, the first adjustment plate 41 equipped with the heat storage ceramic 9 is first moved to the first push plate 42 by rotating the reciprocating screw 921, and then the first hydraulic rod 43 is started to drive the first push plate 42 to push the heat storage ceramic 9 toward the heat storage ceramic 9 on the support plate 91. Through the extrusion of the adjacent heat storage ceramics 9, the heat storage ceramic 9 on the other side can be squeezed and transported to the second adjustment plate 51, and the roller 415 on the second adjustment plate 51 is controlled to rotate to make the heat storage ceramic 9 on the second adjustment plate 51 away from the heat storage ceramic 9 on the support plate 91;

[0056] Then the first adjustment plate 41 is controlled to restore to its initial position, and the second adjustment plate 51 is controlled to move to the second push plate 53. Then the second push plate 53 is controlled to move to push the heat storage ceramic 9 on the second adjustment plate 51 onto the support plate 91. By utilizing the extrusion between adjacent heat storage ceramics 9, the heat storage ceramic 9 on the other side can be squeezed onto the first adjustment plate 41. Through such a cyclic reciprocating movement, the heat storage ceramic 9 is put into operation, so that the heat storage ceramic 9 in the middle can move to the edge, and the heat storage ceramic 9 at the edge can move to the middle, so that each heat storage ceramic 9 can fully store and release heat, and utilize the waste heat recovery rate;

[0057] When the heat storage ceramic 9 moves to the first adjustment plate 41 and reaches the set position, the negative pressure generated by controlling the suction fan 8 can automatically suck out the impurities accumulated at the bottom of the heat storage ceramic 9, and transport them to the gas chamber through the delivery pipe 82 for combustion and then automatically discharged, thereby realizing automatic cleaning of the heat storage ceramic 9 and effectively preventing blockage of the heat storage ceramic 9.

[0058] A coke oven VOCs waste gas treatment method, using the coke oven VOCs waste gas treatment device, comprising the following steps:

[0059] S1 the waste gas enters the first regenerator 1 through the inlet pipe 6 and the inlet branch pipe, and then burns in the combustion chamber 2. After burning, the hot gas stream passes through the heat storage ceramic 9 of the second regenerator 3, and then enters the exhaust pipe 7 through the exhaust branch pipe and is discharged;

[0060] S2 in the process of air intake, by switching the control valve, the gas stream enters the bottom of the second regenerator 3, and then passes through the heat storage ceramic 9 and enters the combustion chamber 2 for combustion. Because the heat storage ceramic 9 stores a certain amount of heat when the hot gas stream passes through it in step S1, the heat storage ceramic 9 can heat the gas stream after it passes through. This can recover the residual heat of the burned gas stream, reduce the exhaust temperature, and at the same time heat the incoming gas stream, saving fuel consumption during the waste gas heating process. The burned gas stream passes through the heat storage ceramic 9 in the first regenerator 1, which can recover the heat in the burned gas stream. Finally, it is discharged through the exhaust pipe 7. By switching in this way, the first regenerator 1 and the second regenerator 3 can be sequentially heated and cooled, and work continuously and alternately;

[0061] S3 in the process of heat storage or heat release of the heat storage ceramic 9, by controlling the first push plate 42 to push, the heat storage ceramic 9 on the first adjusting plate 41 is pushed towards the side of the supporting plate 91, the heat storage ceramic 9 on the other side of the supporting plate 91 enters the corresponding second adjusting plate 51, then the second adjusting plate 51 is controlled to move to the second push plate 53, the second push plate 53 is controlled to push the heat storage ceramic 9 on the second adjusting plate 51 to the supporting plate 91, and the heat storage ceramic 9 on the other side is pushed to the first adjusting plate 41. By constantly circulating back and forth, the heat storage ceramic 9 can be moved, and the heat storage ceramic 9 at the edge can enter the center, and the heat storage ceramic 9 at the center can move to the edge. This way can effectively solve the problem of uneven contact of the heat storage ceramic 9 with the gas stream, so that each heat storage ceramic 9 can fully heat and cool the gas stream;

[0062] S4 the treated gas is treated by a desulfurization device through a semi-dry desulfurization process, and then is treated by a bag dust removal device for dust removal.

[0063] All articles and references, including patent applications and publications, disclosed herein are incorporated by reference for all purposes. The term "consisting essentially of to describe a combination shall include the elements, ingredients, components or steps identified, and such other elements, ingredients, components or steps that do not materially affect the basic and novel characteristics of the combination. The use of the term "comprising" or "including" to describe combinations of elements, ingredients, components or steps herein also is taken to mean that other elements, ingredients, components or steps are optional in an embodiment of the disclosure and exist in addition to the elements, ingredients, components or steps that are recited. Use of the term "may" to describe any aspect of this disclosure is intended to mean that such aspect is optional.

[0064] Plural elements, ingredients, components or steps can be provided by single integrated elements, ingredients, components or steps. Alternatively, a single integrated element, ingredient, component or step might be divided into separate plural elements, ingredients, components or steps. To "comprise" or "comprising" as used in describing the components of the present disclosure means that the described component is present, but does not exclude the presence of other components.

[0065] It is understood that the above description is intended to be illustrative and not restrictive. Many embodiments and applications other than the examples provided would be apparent to those of skill in the art upon reading the above description. The scope of the application should be determined, not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are incorporated by reference for all purposes. The omission of any aspect of the subject matter disclosed herein does not preclude coverage of that aspect, nor does it relinquish any right to use such subject matter under the field of patent, equity, or other laws.

Claims

1. A VOCs waste gas treatment device for a coke oven, characterized by: The evaporative heat recovery device further comprises a heat recovery device for evaporating the waste gas through the evaporative heat recovery device, a heat recovery device for evaporating the waste gas through the evaporative heat recovery device, a heat recovery device for evaporating the waste gas through the evaporative heat recovery device, a heat recovery device for evaporating the waste gas through the evaporative heat recovery device, and a heat recovery device for evaporating the waste gas through the evaporative heat recovery device. The support plate is connected to the support plate, and the support plate is provided with a plurality of ventilation slots in the form of long strips for air flow through. The ventilation slots are provided with evenly distributed and rectangular heat storage ceramics. A first regulating box is provided on one side of the first heat storage chamber, and a first regulating box is also provided on one side of the second heat storage chamber. A plurality of first regulating plates corresponding to the support plate and movable back and forth are provided in the first regulating box, and a first push plate movable back and forth and used for pushing the heat storage ceramics is provided in the first regulating box. A second regulating box is provided on the other side of the first heat storage chamber, and a second regulating box is provided on the other side of the second heat storage chamber. A plurality of second regulating plates corresponding to the support plate and movable back and forth are provided in the second regulating box, and a second push plate movable back and forth and used for pushing the heat storage ceramics is provided in the second regulating box, and the first push plates and the second push plates are staggered.

2. The VOCs waste gas treatment device for coke oven according to claim 1, characterized in that: There are limit grooves on both sides of the support plate, and a sliding limit plate is provided in the limit groove. The limit plates are fixedly connected to the corresponding first adjustment plate and the second adjustment plate respectively. A rotatable reciprocating screw is provided in the limit groove, and a through-type limit hole is provided on the limit plate, and the limit hole is matched with the reciprocating screw.

3. The coke oven VOCs waste gas treatment device according to claim 2, characterized in that: The bottom of the first regulating box and the second regulating box are both provided with a driving motor, the output end of the driving motor is provided with a conveying shaft, the end of the reciprocating screw is provided with a fixedly connected turbine, and the conveying shaft is provided with a worm that is fixedly connected and matched with the turbine.

4. The coke oven VOCs waste gas treatment device according to claim 1, characterized in that: A first hydraulic rod is fixedly connected in the first adjustment box, and the first hydraulic rod is fixedly connected to the first push plate. A second hydraulic rod is fixedly connected in the second adjustment box, and the second hydraulic rod is fixedly connected to the second push plate.

5. The coke oven VOCs waste gas treatment device according to claim 1, characterized in that: The first regulating plate is provided with a plurality of suction grooves for sucking impurities from the bottom of the heat storage ceramic. A suction fan is provided between the first heat storage chamber and the second heat storage chamber. A delivery pipe is provided at the output end of the suction fan, and the delivery pipe is connected to the combustion chamber. A suction pipe is provided at the air inlet end of the suction fan, and the suction pipe is connected to the suction grooves.

6. The coke oven VOCs waste gas treatment device according to claim 5, characterized in that: A suction hole is provided at one end of the first adjustment plate, a connecting groove connected to the suction hole is provided on the side wall of the suction groove, and a connecting and retractable suction branch pipe is provided at the end of the suction hole, and the suction branch pipes are respectively connected to the corresponding suction pipes.

7. The coke oven VOCs waste gas treatment device according to claim 1, characterized in that: The support plates at both ends of the ventilation slot are each provided with a first slide fixedly connected thereto, the first adjustment plate and the second adjustment plate are each provided with a second slide fixedly connected thereto and corresponding to the first slide, and the bottom of the heat storage ceramic is provided with a sliding groove slidably connected to the first slide and the second slide.

8. The coke oven VOCs waste gas treatment device according to claim 7, characterized in that: The second slide plates are each provided with a rotatable roller for driving the heat storage ceramic to move.

9. A method for treating VOCs waste gas from a coke oven, using the VOCs waste gas treatment device for a coke oven according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1 passes the exhaust gas into the first regenerator through the intake pipe and the intake branch pipe, and then enters the combustion chamber through the first regenerator for combustion. After combustion, the hot air flows through the heat storage ceramics of the second regenerator and enters the exhaust pipe through the exhaust branch pipe for discharge; During the intake process of S2, the airflow enters the bottom of the second heat storage chamber by switching the control valve, and then passes through the heat storage ceramic and enters the combustion chamber for combustion. Since the heat storage ceramic stores a certain amount of heat when the hot air flows through the heat storage ceramic in step S1, the heat storage ceramic can heat the airflow after the airflow passes through the heat storage ceramic, thereby recovering the waste heat in the airflow after combustion and reducing the exhaust temperature. At the same time, it can heat the airflow of the intake, saving the fuel consumption in the process of heating the exhaust gas. The airflow after combustion passes through the first heat storage chamber and the heat storage ceramic in the first heat storage chamber. The heat storage ceramic can recover the heat in the airflow after combustion and finally discharge it through the exhaust pipe. By switching back and forth in this way, the first heat storage chamber and the second heat storage chamber perform the process of heat storage and heat release in turn, and work alternately continuously. S3 is a process in which the heat storage ceramic stores or releases heat. By controlling the pushing of the first push plate, the heat storage ceramic on the first adjusting plate is pushed toward one side of the support plate, so that the heat storage ceramic on the other side of the support plate enters the corresponding second adjusting plate. Then, the second adjusting plate is controlled to move the second adjusting plate to the second push plate, and the second push plate is controlled to push the heat storage ceramic on the second adjusting plate onto the support plate, and the heat storage ceramic on the other side is squeezed and pushed onto the first adjusting plate. Through such continuous reciprocating cycles, the heat storage ceramic can be moved, and the heat storage ceramic at the edge can be entered into the center, and the heat storage ceramic at the center moves to the edge. In this way, the problem of uneven contact between the heat storage ceramic and the airflow is effectively solved, so that each heat storage ceramic can fully store and release heat to the airflow. The gas after S4 treatment passes through the desulfurization equipment for semi-dry desulfurization treatment, and then passes through the bag dust removal equipment for dust removal.

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