阅读说明：本技术 焦化厂废气处理装置 (Exhaust gas treatment device for coking plant ) 是由 畅晟 蒋平 刘静 于 2021-08-31 设计创作，主要内容包括：本发明涉及废气处理装置技术领域,具体涉及一种焦化厂废气处理装置；包括收集结构和脱硫结构,焦化厂废气处理装置还包括预处理结构和燃烧结构,预处理结构包括输送管道、喷淋件、循环泵、冷却水管道和预处理外壳,输送管道与收集结构的输出端连通,利用输送管道来输送废气,并配合喷淋件来喷洒油液,去除废气中的有机物,又利用冷却水管道来降低废气的温度,从而实现对废气的预处理,进而有效提升对废气的处理效果,避免二次污染的产生。(The invention relates to the technical field of waste gas treatment devices, in particular to a waste gas treatment device of a coking plant; including collecting structure and desulfurization structure, coke-oven plant exhaust treatment device still includes pretreatment structure and burning structure, pretreatment structure includes pipeline, spray the piece, the circulating pump, cooling water piping and preliminary treatment shell, pipeline and the output intercommunication of collecting the structure, utilize pipeline to carry waste gas, and the cooperation sprays the piece and sprays fluid, get rid of the organic matter in the waste gas, utilize cooling water piping to reduce the temperature of waste gas again, thereby realize the preliminary treatment to waste gas, and then effectively promote the treatment effect to waste gas, avoid secondary pollution's production.)

1. A coke-oven plant waste gas treatment device comprises a collection structure and a desulfurization structure, and is characterized in that,

the device for treating the waste gas of the coking plant further comprises a pretreatment structure and a combustion structure, wherein the collection structure is communicated with the waste gas output end of the coking plant, the pretreatment structure is communicated with the collection structure and is arranged at the output end of the collection structure, the combustion structure is communicated with the collection structure and is arranged at the output end of the collection structure, and the desulfurization structure is arranged at the output end of the combustion structure;

the pretreatment structure includes pipeline, sprays piece, circulating pump, cooling water piping and preliminary treatment shell, pipeline and the output intercommunication of collecting the structure, spray the piece then with the circulating pump is connected, and set up in the inboard of preliminary treatment shell, circulating pump circulation fluid, cooling water piping then set up in the inboard of preliminary treatment shell, and external circulating water pump.

2. The coke plant exhaust gas treatment device of claim 1,

the pretreatment shell is provided with a spraying cavity and a recovery pipeline, the spraying cavity is arranged on the inner side of the pretreatment shell, two ends of the spraying cavity are respectively communicated with the conveying pipeline and the combustion structure, the recovery pipeline is arranged on the lower side of the pretreatment shell, and the recovery pipeline is communicated with the circulating pump.

3. The coke plant exhaust gas treatment device of claim 2,

the cooling water pipeline is provided with a plurality of flow limiting grooves and a plurality of radiating fins, the flow limiting grooves are arranged along the length extending direction of the cooling water pipeline, and the radiating fins are arranged on the outer side of the cooling water pipeline.

4. The coke plant exhaust gas treatment device of claim 1,

the combustion structure includes combustion column and deacidification unit, the combustion column with the output of preliminary treatment structure is connected, deacidification unit then set up in the upside of combustion column.

5. The coke plant exhaust gas treatment device of claim 4,

the combustion tower includes combustion section and cooling section, the combustion section set up in the downside of cooling section, just the combustion section with the preliminary treatment structure intercommunication, the cooling section then with deacidification unit connection.

6. The coke plant exhaust gas treatment device of claim 5,

the combustion section includes a plurality of burning interlayer and four times the burning shower nozzle of burning interlayer quantity, and is a plurality of the burning interlayer is from supreme the setting of piling up in proper order down, burning shower nozzle then sets up in each the four corners of burning interlayer.

Technical Field

The invention relates to the technical field of waste gas treatment devices, in particular to a waste gas treatment device for a coking plant.

Background

A coking plant is a production place for converting coal into chemical products for short, but a large amount of waste gas is generated in the production process, and the waste gas is mixed with organic gas, inorganic gas and a small amount of impurities;

in the prior art, waste gas is treated by a combustion mode, but new tail gas is generated after combustion, so that secondary pollution is generated to the environment.

Disclosure of Invention

The invention aims to provide a waste gas treatment device for a coke-oven plant, which aims to solve the problem that the combustion waste gas in the prior art can generate secondary pollution.

In order to achieve the above object, the present invention provides a coke-oven plant waste gas treatment apparatus, which comprises a collection structure and a desulfurization structure, and further comprises a pretreatment structure and a combustion structure, wherein the collection structure is communicated with a waste gas output end of a coke-oven plant, the pretreatment structure is communicated with the collection structure, the pretreatment structure is arranged at the output end of the collection structure, the combustion structure is communicated with the collection structure and arranged at the output end of the collection structure, and the desulfurization structure is arranged at the output end of the combustion structure;

the pretreatment structure includes pipeline, sprays piece, circulating pump, cooling water piping and preliminary treatment shell, pipeline and the output intercommunication of collecting the structure, spray the piece then with the circulating pump is connected, and set up in the inboard of preliminary treatment shell, circulating pump circulation fluid, cooling water piping then set up in the inboard of preliminary treatment shell, and external circulating water pump.

The spraying piece is used for spraying oil liquid, so that organic matters in the waste gas are absorbed, and the cooling water pipeline is used for carrying out heat exchange with the waste gas, so that the waste gas is pretreated.

The pretreatment shell is provided with a spraying cavity and a recovery pipeline, the spraying cavity is arranged on the inner side of the pretreatment shell, two ends of the spraying cavity are communicated with the conveying pipeline and the combustion structure respectively, the recovery pipeline is arranged on the lower side of the pretreatment shell, and the recovery pipeline is communicated with the circulating pump.

The spraying cavity is utilized to complete the contact of waste gas and oil, and the oil is recovered by matching with the recovery pipeline.

The cooling water pipeline is provided with a plurality of flow limiting grooves and a plurality of radiating fins, the flow limiting grooves are arranged along the length extending direction of the cooling water pipeline, and the radiating fins are arranged on the outer side of the cooling water pipeline.

The flow limiting groove is used for reducing the flow speed of cooling water in the cooling water pipeline, so that the heat exchange between the waste gas and the cooling water pipeline is more sufficient, and the radiating fins are used for radiating heat.

Wherein, the burning structure includes combustion column and deacidification unit, the combustion column with the output of preliminary treatment structure is connected, deacidification unit then set up in the upside of combustion column.

The combustion tower is used for realizing combustion treatment of the pretreated waste gas, the combusted tail gas is sent to the desulfurization structure, and the deacidification unit is used for treating the acid liquor in the combustion tower.

The combustion tower comprises a combustion section and a cooling section, the combustion section is arranged on the lower side of the cooling section, the combustion section is communicated with the pretreatment structure, and the cooling section is connected with the deacidification unit.

The combustion section is used for realizing the combustion of waste gas, and the cooling section is used for spraying low-temperature acid liquor to reduce the temperature of tail gas after combustion and remove alkaline substances, so that the subsequent treatment is facilitated.

The combustion section comprises a plurality of combustion interlayers and combustion nozzles in four times of the number of the combustion interlayers, the combustion interlayers are sequentially stacked from bottom to top, and the combustion nozzles are arranged at four corners of each combustion interlayer.

The combustion interlayer is matched with the combustion nozzle, so that the combustion can be more sufficient.

According to the device for treating the waste gas of the coking plant, the conveying pipeline is used for conveying the waste gas, the spraying piece is matched for spraying oil liquid, organic matters in the waste gas are removed, and the cooling water pipeline is used for reducing the temperature of the waste gas, so that the pretreatment of the waste gas is realized, the treatment effect on the waste gas is effectively improved, and the generation of secondary pollution is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of an axial structure of a coke plant exhaust gas treatment device provided by the present invention.

FIG. 2 is a schematic cross-sectional view of an exhaust gas treatment device of a coke plant according to the present invention.

FIG. 3 is a schematic axial view of a gas permeable plate of the exhaust gas treatment device of a coke-oven plant according to the present invention.

Fig. 4 is a schematic sectional structural view of a gas permeable plate of an exhaust gas treatment device of a coke-oven plant according to the present invention.

FIG. 5 is a schematic axial view of a closing plate of a coke plant flue gas treatment apparatus according to the present invention.

FIG. 6 is a schematic cross-sectional view of a closing plate of a coke plant flue gas treatment plant according to the present invention.

Fig. 7 is a partial sectional structural view of a cooling water pipe of a coke plant exhaust gas treatment device provided by the present invention.

1-pretreatment structure, 2-combustion structure, 11-conveying pipeline, 12-spraying component, 13-circulating pump, 14-cooling water pipeline, 15-pretreatment shell, 141-flow-limiting groove, 142-radiating fin, 151-spraying chamber, 152-recovery pipeline, 21-combustion tower, 22-deacidification unit, 211-combustion section, 212-cooling section, 2111-combustion interlayer, 2112-combustion spray head, 2113-ventilation plate, 2114-spiral channel, 2115-communication hole, 2121-atomization spray head, 2122-liquid discharge pipeline, 2123-sealing plate, 2124-sealing plate and 2125-ventilation hole.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 7, the present invention provides a coke-oven plant waste gas treatment apparatus, which includes a collection structure and a desulfurization structure, and further includes a pretreatment structure 1 and a combustion structure 2, wherein the collection structure is communicated with a waste gas output end of a coke-oven plant, the pretreatment structure 1 is communicated with the collection structure, the pretreatment structure 1 is disposed at an output end of the collection structure, the combustion structure 2 is communicated with the collection structure and disposed at an output end of the collection structure, and the desulfurization structure is disposed at an output end of the combustion structure 2;

pretreatment structure 1 includes pipeline 11, sprays 12, circulating pump 13, cooling water pipeline 14 and pretreatment shell 15, pipeline 11 and the output intercommunication of collecting the structure, spray 12 then with circulating pump 13 is connected, and set up in pretreatment shell 15's inboard, circulating pump 13 circulating fluid, cooling water pipeline 14 then set up in pretreatment shell 15's inboard, and external circulating water pump.

In this embodiment, utilize and collect the structure and collect the waste gas of coke-oven plant, utilize pretreatment structure 1 carries out the preliminary treatment to waste gas, and the cooperation 2 of burning structure realizes the combustion treatment to waste gas, and the desulfurization structure then is used for the processing of the sulphur material of the tail gas that produces behind the desorption burning waste gas, because of it belongs to prior art, this application does not explain it in detail, pipeline 11 is used for sending the waste gas in collecting the structure to spray 12, the warp spray 12 after spraying fluid, take off the organic matter in the waste gas, circulating pump 13 then cooperates pretreatment shell 15 to the realization is to the cyclic utilization of fluid, cooling water pipeline 14 then is used for realizing the heat exchange to the waste gas for the internal energy of waste gas reduces, also makes the interior impurity of waste gas can a small amount subside.

Further, the pretreatment housing 15 has a spraying chamber 151 and a recycling pipeline 152, the spraying chamber 151 is disposed inside the pretreatment housing 15, two ends of the spraying chamber 151 are respectively communicated with the conveying pipeline 11 and the combustion structure 2, the recycling pipeline 152 is disposed at the lower side of the pretreatment housing 15, and the recycling pipeline 152 is communicated with the circulating pump 13;

the cooling water pipe 14 has a plurality of flow restricting grooves 141 and a plurality of cooling fins 142, the plurality of flow restricting grooves 141 are disposed along a length extending direction of the cooling water pipe 14, and the plurality of cooling fins 142 are disposed outside the cooling water pipe 14.

In this embodiment, the spraying chamber 151 is used to spray the exhaust gas, the recycling pipe 152 is used to recycle the sprayed oil, the flow-limiting groove 141 uses the cooling water to collide with the flow-limiting groove 141 when the cooling water flows in the cooling water pipe 14, so as to reduce the flow rate of the cooling water, so that the cooling water can fully exchange heat with the exhaust gas, thereby reducing the heat of the exhaust gas, and the heat sink 142 is used to dissipate heat, thereby improving the heat dissipation effect of the cooling water pipe 14.

Further, the combustion structure 2 comprises a combustion tower 21 and a deacidification unit 22, the combustion tower 21 is connected with the output end of the pretreatment structure 1, and the deacidification unit 22 is arranged on the upper side of the combustion tower 21;

the combustion tower 21 comprises a combustion section 211 and a cooling section 212, the combustion section 211 is arranged at the lower side of the cooling section 212, the combustion section 211 is communicated with the pretreatment structure 1, and the cooling section 212 is connected with the deacidification unit 22;

the combustion section 211 comprises a plurality of combustion interlayers 2111 and combustion nozzles 2112 of which the number is four times that of the combustion interlayers 2111, the combustion interlayers 2111 are sequentially stacked from bottom to top, and the combustion nozzles 2112 are arranged at four corners of each combustion interlayer 2111.

In this embodiment, the combustion tower 21 is used to combust the pretreated exhaust gas, the deacidification unit 22 is used to cooperate with the cooling section 212 to treat the acid solution used by the cooling section 212, the combustion nozzles 2112 are disposed at four corners of the combustion interlayer 2111, so that combustion can be performed in an inscribed circle manner, and further the combustion effect on the exhaust gas is effectively improved, and the cooling section 212 is used to treat the alkaline substances in the exhaust gas generated after the exhaust gas is combusted by spraying the low-temperature acid solution.

Further, each combustion interlayer 2111 comprises a gas-permeable plate 2113 provided with a plurality of communicating holes 2115 and a spiral passage 2114, the gas-permeable plates 2113 are arranged on the upper and lower sides of the combustion interlayer 2111, the communicating holes 2115 penetrate through the gas-permeable plates 2113, and the spiral passages 2114 are matched with the communicating holes 2115 and arranged on the inner side of the communicating holes 2115;

the cooling section 212 comprises an atomizing nozzle 2121, a liquid discharge pipe 2122 and a closing plate 2123, the closing plate 2123 is arranged at the lower side of the cooling section 212, a low-temperature acid liquid is arranged in the atomizing nozzle 2121, the liquid discharge pipe 2122 is arranged at the lower side of the cooling section 212, and the liquid discharge pipe 2122 is communicated with the deacidification unit 22;

the sealing plate 2123 has a vent hole 2125 and a sealing plate 2124, the vent hole 2125 penetrates the sealing plate 2123 and communicates with the combustion section 211, and the sealing plate 2124 is fitted with the vent hole 2125.

In this embodiment, the air-permeable plate 2113 is used to realize the layer-by-layer transmission of combustion from bottom to top, the communication hole 2115 is used to transmit the exhaust gas, the spiral passage 2114 is used to increase the retention time of the unburned exhaust gas in the previous combustion interlayer 2111, so as to effectively improve the treatment effect on the exhaust gas and avoid secondary pollution, the atomizing nozzle 2121 cooperates with the liquid discharge pipe 2122 to discharge the acid solution to the cooling section 212 to remove the acidic substances in the exhaust gas, and the closing plate 2123 cooperates with the closing plate 2124 to close the air-permeable hole 2125 and use the deacidification unit 22 to treat the acid solution when the cooling section 212 sprays the acid solution.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.