Coke oven waste gas treatment and utilization device

Abstract

The utility model relates to the technical field of coke oven waste gas treatment, in particular to a coke oven waste gas treatment and utilization device. According to the technical scheme, the coke oven comprises a coke oven body and a steam heat accumulator, an exhaust pipe is fixed to the coke oven body, a heat absorption pipe is installed in the exhaust pipe, a circulating pipe is fixed to the steam heat accumulator, and the two ends of the heat absorption pipe extend out of the exhaust pipe and are fixed to the ends of the circulating pipe; a notch groove is formed in the position, corresponding to the heat absorption pipe, of the bottom of the exhaust pipe, a sealing plate is clamped in the notch groove and is of an arc structure, the radian of the sealing plate is the same as that of the exhaust pipe, the heat absorption pipe is fixed to the sealing plate, and the two ends of the heat absorption pipe extend out of the sealing plate. When the heat energy storage pipe is used for heat recovery, the exhaust pipe can be arranged to be of a detachable combined structure, and the heat absorption pipe is arranged in the heat dissipation pipe, so that heat can be absorbed more efficiently, and the heat energy storage pipe can be detached conveniently to clean dust on the surface.

Description

Technical Field

[0001] The utility model relates to the technical field of coke oven waste gas treatment, in particular to a coke oven waste gas treatment and utilization device. Background Art

[0002] Coke oven waste gas recovery mainly involves the utilization of waste heat resources. During the coking process, a large amount of waste heat resources will be generated. These resources have a high recycling value. At present, the production methods of many coking plants are relatively extensive and they do not pay enough attention to the utilization of waste heat resources, resulting in waste of resources.

[0003] Waste heat resources mainly come from the coke oven heating system, the coke oven body and the waste gas exhaust system. If these waste heat are directly discharged into the atmosphere, it will not only pollute the environment, but also pollute the soil and water resources. Therefore, effectively recovering these waste heat resources is of great significance to improving the economic and social benefits of the coking plant.

[0004] During the preheating recovery process, steam accumulators are often used for heat collection. This process requires the use of liquid circulation pipes for heat exchange. The heat circulation pipes are installed on the outside of the coke oven exhaust pipe, and the heat absorption efficiency is relatively low. If they are installed inside the exhaust pipe, a large amount of dust will adhere to the surface, which is not conducive to heat absorption. In addition, the heat absorption pipes installed inside the exhaust pipe are not convenient for cleaning the dust on the surface, and it is difficult to improve the problem of insufficient heat absorption. Utility Model Content

[0005] The purpose of the utility model is to provide a coke oven waste gas treatment and utilization device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: it includes a coke oven body and a steam accumulator, an exhaust pipe is fixed on the coke oven body, a heat absorption pipe is installed in the exhaust pipe, a circulation pipe is fixed on the steam accumulator, both ends of the heat absorption pipe extend out of the exhaust pipe and are fixed to the ends of the circulation pipe, a notch groove is provided at the bottom of the exhaust pipe and at a position corresponding to the heat absorption pipe, a sealing plate is clamped in the notch groove, the sealing plate is an arc structure and has the same arc as the exhaust pipe, the heat absorption pipe is fixed on the sealing plate and both ends extend out of the sealing plate, and a fixing component is provided on the exhaust pipe and at both ends of the sealing plate.

[0007] Preferably, the fixing assembly includes a sliding sleeve and a telescopic cylinder, the sliding sleeve is slidably connected to the periphery of the exhaust pipe and is symmetrically distributed at both ends of the notch groove, a telescopic cylinder is fixed on the exhaust pipe and on the side away from the sliding sleeve, and the output end of the telescopic cylinder is fixed on the sliding sleeve.

[0008] Preferably, the inner diameter of the sliding sleeve is the same as the outer diameter of the exhaust pipe, and a positioning block is fixed on the exhaust pipe and located on a side close to the sliding sleeve.

[0009] Preferably, sealing pads are fixed at the edges of the notch grooves, a positioning column is fixed at the upper end of the sealing plate, and positioning grooves are provided on the side walls of the notch grooves at positions corresponding to the positioning columns.

[0010] Preferably, the circulation pipe passes through the interior of the steam accumulator, and a circulation pump is fixed on the circulation pipe.

[0011] Preferably, a dustproof mesh pipe is fixed to one end of the exhaust pipe close to the coke oven body, and a dustproof mesh is fixed inside.

[0012] Compared with the prior art, the beneficial effect of the utility model is that when using the thermal energy storage tube for heat recovery, the exhaust pipe can be arranged into a detachable combined structure, and the heat absorption tube is arranged in the heat dissipation tube, which can not only absorb heat more efficiently, but also be convenient to disassemble and clean the surface dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the internal structure of the front exhaust pipe of a coke oven waste gas treatment and utilization device of the utility model;

[0014] Figure 2 This is a schematic diagram of the combined structure of a sealing plate and a heat absorbing pipe of a coke oven waste gas treatment and utilization device of the utility model;

[0015] Figure 3 The utility model is a schematic structural diagram of a coke oven waste gas treatment and utilization device in which an exhaust pipe is located at the end of a notch groove.

[0016] In the figure: 1. coke oven body; 2. steam accumulator; 3. exhaust pipe; 31. dustproof mesh pipe; 32. notch groove; 33. sliding sleeve; 34. positioning block; 35. telescopic cylinder; 36. sealing gasket; 4. sealing plate; 41. positioning column; 5. heat absorption pipe; 51. circulation pipe; 52. circulation pump. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3The utility model provides a technical solution: it includes a coke oven body 1 and a steam accumulator 2, an exhaust pipe 3 is fixed on the coke oven body 1, a heat absorption pipe 5 is installed in the exhaust pipe 3, a circulation pipe 51 is fixed on the steam accumulator 2, both ends of the heat absorption pipe 5 extend out of the exhaust pipe 3 and are fixed to the ends of the circulation pipe 51, a notch groove 32 is opened at the bottom of the exhaust pipe 3 and at a position corresponding to the heat absorption pipe 5, a sealing plate 4 is clamped in the notch groove 32, the sealing plate 4 is an arc structure, and has the same arc as the exhaust pipe 3, the heat absorption pipe 5 is fixed on the sealing plate 4, and both ends extend out of the sealing plate 4, a fixing component is arranged on the exhaust pipe 3 and at both ends of the sealing plate 4, the circulation pipe 51 passes through the steam accumulator 2, a circulation pump 52 is fixed on the circulation pipe 51, a dustproof net pipe 31 is fixed at one end of the exhaust pipe 3 close to the coke oven body 1, and a dustproof net is fixed inside.

[0019] The fixed component includes a sliding sleeve 33 and a telescopic cylinder 35. The sliding sleeve 33 is slidably connected to the periphery of the exhaust pipe 3 and is symmetrically distributed at both ends of the notch groove 32. The telescopic cylinder 35 is fixed on the exhaust pipe 3 and on the side away from the sliding sleeve 33. The output end of the telescopic cylinder 35 is fixed on the sliding sleeve 33. The inner diameter of the sliding sleeve 33 is the same as the outer diameter of the exhaust pipe 3. A positioning block 34 is fixed on the exhaust pipe 3 and on the side close to the sliding sleeve 33. Sealing pads 36 are fixed at the edges of the notch groove 32. A positioning column 41 is fixed to the upper end of the sealing plate 4. A positioning groove is provided on the side wall of the notch groove 32 and at a position corresponding to the positioning column 41.

[0020] Working principle: First, connect the entire device to an external power source, and the exhaust gas in the coke oven body 1 will be discharged through the exhaust pipe 3. At this time, the dust-proof net in the dust-proof net pipe 31 can be used to block dust and reduce the dust from entering the exhaust pipe 3. After the exhaust gas enters the exhaust pipe 3, it can use the liquid flow in the heat absorption pipe 5 to absorb a large amount of heat, and then enter the circulation pipe 51, and finally heat the water in the steam accumulator 2 to achieve the purpose of heat exchange and energy storage. In this process, the circulation pump 52 is used to circulate the liquid. When dust accumulates on the surface of the heat absorption pipe 5 and affects the normal heat absorption, the sealing plate 4 can be opened after the coke oven body 1 stops working. , the heat absorption tube 5 can be easily taken out and the surface dust can be cleaned. In this process, the sliding sleeve 33 can be pulled away from the side by driving the telescopic cylinder 35 so that its end can leave the connection between the notch groove 32 and the sealing plate 4, and the sealing plate 4 will fall off naturally. The disassembly and assembly operation is relatively simple, which is convenient for cleaning. When the sealing plate 4 is installed, the positioning column 41 on the sealing plate 4 can be aligned with the positioning groove and inserted so that the exhaust pipe 3 forms a complete tubular structure. When the sliding sleeve 33 is pushed to the connection gap, the sealing plate 4 can be quickly fixed to ensure that the heat absorption tube 5 is installed inside the exhaust pipe 3, so that heat absorption can be performed more efficiently, and it is convenient to disassemble and assemble to clean the surface dust.

[0021] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0022] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coke oven waste gas treatment and utilization device, comprising a coke oven body (1) and a steam accumulator (2), characterized in that: An exhaust pipe (3) is fixed on the coke oven body (1), a heat absorbing pipe (5) is installed in the exhaust pipe (3), a circulation pipe (51) is fixed on the steam heat accumulator (2), both ends of the heat absorbing pipe (5) extend out of the exhaust pipe (3) and are fixed to the ends of the circulation pipe (51), a notch groove (32) is provided at the bottom of the exhaust pipe (3) and at a position corresponding to the heat absorbing pipe (5), a sealing plate (4) is clamped in the notch groove (32), the sealing plate (4) is an arc structure and has the same arc as the exhaust pipe (3), the heat absorbing pipe (5) is fixed on the sealing plate (4), and both ends extend out of the sealing plate (4), and fixing components are provided on the exhaust pipe (3) and at both ends of the sealing plate (4).

2. The coke oven waste gas treatment and utilization device according to claim 1, characterized in that: The fixing assembly comprises a sliding sleeve (33) and a telescopic cylinder (35); the sliding sleeve (33) is slidably connected to the periphery of the exhaust pipe (3) and is symmetrically distributed at both ends of the notch groove (32); a telescopic cylinder (35) is fixed on the exhaust pipe (3) and located on a side away from the sliding sleeve (33); an output end of the telescopic cylinder (35) is fixed on the sliding sleeve (33).

3. The coke oven waste gas treatment and utilization device according to claim 2, characterized in that: The inner diameter of the sliding sleeve (33) is the same as the outer diameter of the exhaust pipe (3), and a positioning block (34) is fixed on the exhaust pipe (3) and located on a side close to the sliding sleeve (33).

4. The coke oven waste gas treatment and utilization device according to claim 1, characterized in that: Sealing pads (36) are fixed at the edges of the notched grooves (32), a positioning column (41) is fixed at the upper end of the sealing plate (4), and a positioning groove is provided on the side wall of the notched groove (32) at a position corresponding to the positioning column (41).

5. The coke oven waste gas treatment and utilization device according to claim 1, characterized in that: The circulation pipe (51) passes through the interior of the steam heat accumulator (2), and a circulation pump (52) is fixed on the circulation pipe (51).

6. The coke oven waste gas treatment and utilization device according to claim 1, characterized in that: A dustproof net pipe (31) is fixed to one end of the exhaust pipe (3) close to the coke oven body (1), and a dustproof net is fixed inside the exhaust pipe (3).

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