CN210356631U - Coking waste gas treatment device - Google Patents
Coking waste gas treatment device Download PDFInfo
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- CN210356631U CN210356631U CN201920991331.4U CN201920991331U CN210356631U CN 210356631 U CN210356631 U CN 210356631U CN 201920991331 U CN201920991331 U CN 201920991331U CN 210356631 U CN210356631 U CN 210356631U
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Abstract
The utility model provides a coking chemical product waste gas treatment device, which belongs to the technical field of waste gas treatment and comprises a negative pressure gas pipeline, a gas source tank, a pressure pipe and a heating pipe, wherein the top of the gas source tank is communicated with the negative pressure gas pipeline; one end of the pressure pipe is communicated with the top of the gas source tank, and the other end of the pressure pipe is connected with a nitrogen gas source; the heating pipe is arranged between the gas source tank and the negative pressure gas pipeline and is communicated with the gas source tank. The utility model provides a coking and chemical industry produces exhaust treatment device, gas source jar and negative pressure gas piping intercommunication, through the flow of the coal gas in the negative pressure gas piping, form the negative pressure, will smelt coking and produce during waste gas inhales negative pressure gas piping, mix with coal gas, get into subsequent purification process. And a nitrogen gas source fills nitrogen into the gas source tank to ensure that the waste gas generated by coking can enter the negative pressure gas pipeline through the negative pressure formed by the gas. The heating pipe is communicated between the gas source tank and the negative pressure gas pipeline, so that the phenomenon that substances such as tar, naphthalene and the like in the waste gas generated by coking are crystallized and attached to the inner wall of the pipeline to cause pipeline blockage is prevented.
Description
Technical Field
The utility model belongs to the technical field of exhaust-gas treatment, more specifically say, relate to a coking chemical industry produces exhaust treatment device.
Background
VOCs (volatile organic compounds) refers to organic compounds having a saturated vapor pressure of more than 133.2Pa at normal temperature and a boiling point of 50-260 ℃ at normal pressure, or any organic solid or liquid capable of volatilizing at normal temperature and normal pressure. The coking waste gas volatilizes in the chemical product storage tank, the waste gas mainly contains non-methane total hydrocarbon, naphthalene, tar, benzene, benzo [ a ] pyrene, volatile phenol, ammonia, hydrogen sulfide and the like, the concentration of the waste gas is high, the waste gas contains highly viscous and easily crystallized substances such as tar, naphthalene and the like, and the treatment difficulty is large.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a coking chemical waste gas treatment device to solve the big technical problem of the coking chemical waste gas treatment degree of difficulty that exists among the prior art.
In order to achieve the above object, the utility model adopts the following technical scheme: smelt coking and produce exhaust treatment device includes:
the negative pressure gas pipeline is used for conveying coking chemical product gas and forming negative pressure;
the gas source tank is used for storing waste gas produced by coking, and the top of the gas source tank is communicated with the negative pressure gas pipeline;
one end of the pressurizing pipe is communicated with the top of the gas source tank, the other end of the pressurizing pipe is connected with a nitrogen gas source, and a first valve is arranged on the pressurizing pipe;
the heating pipe is arranged between the gas source tank and the negative pressure gas pipeline, is communicated with the gas source tank and is used for heating gas in the gas source tank, and a second valve is arranged on the heating pipe.
Further, a primary cooler is arranged on the negative pressure gas pipeline behind the gas source tank.
Furthermore, a connecting pipe is arranged between the gas source tank and the negative pressure gas pipeline, a third valve is arranged on the connecting pipe, and the heating pipe is communicated with the connecting pipe.
Further, the top of air supply jar is equipped with pressure transmitter, pressure transmitter is connected with the controller electricity, the controller with first valve electricity is connected for adjust the pressure in the air supply jar.
Further, a safety valve is arranged at the top of the air source tank.
Further, the air source tank is a sealed tank body.
The utility model provides a coking chemical production exhaust treatment device's beneficial effect lies in: compared with the prior art, the utility model discloses smelt coking and produce exhaust treatment device will store the lateral wall intercommunication that smelts coking and produce the gas source jar of waste gas and negative pressure gas piping, through the coking in the negative pressure gas piping and change the flow of producing coal gas, form the negative pressure, will smelt coking and produce waste gas and inhale negative pressure gas piping in, mix with coal gas, get into subsequent purification process and realize the waste gas zero release. The top of the gas source tank is also communicated with a nitrogen gas source, the nitrogen gas source fills nitrogen into the gas source tank to ensure the pressure balance in the gas source tank, and further ensure that the coking waste gas can enter a negative pressure gas pipeline through the negative pressure formed by the gas. The heating pipe is communicated between the gas source tank and the negative pressure gas pipeline, and the hot gas in the heating pipe heats the coking chemical waste gas, so that the substances such as tar, naphthalene and the like in the coking chemical waste gas are prevented from being crystallized and attached to the inner wall of the pipeline to cause pipeline blockage.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
FIG. 1 is a schematic structural diagram of a coking chemical waste gas treatment device provided by an embodiment of the present invention;
wherein, in the figures, the respective reference numerals:
1. a negative pressure gas pipeline; 2. a main valve; 3. a gas source tank; 4. a connecting pipe; 5. a nitrogen tank; 6. a pressurizing pipe; 7. a first valve; 8. heating a tube; 9. a second valve; 10. a third valve; 11. a pressure transmitter; 12. a safety valve; 13. a primary cooler; 14. an exhaust manifold.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a coking chemical waste gas treatment device provided by the present invention will now be described. The coking waste gas treatment device comprises a negative pressure gas pipeline 1, a gas source tank 3, a pressurizing pipe 6 and a heating pipe 8, wherein the head end of the negative pressure gas pipeline 1 is connected with a coke oven, the tail end of the negative pressure gas pipeline is connected with the gas treatment device, the negative pressure gas pipeline is a primary process negative pressure gas pipeline and is not a newly added pipeline, the negative pressure gas pipeline 1 is used for conveying coking chemical product gas, the gas source tank 3 is a coking product storage tank, VOCs (volatile organic chemicals) produced by coking are filled in the gas source tank, volatile waste gas is above the liquid level of the VOCs, the top of the gas source tank 3 is communicated with the side wall of the negative pressure gas pipeline 1, the coking chemical product gas forms negative pressure in the flowing process of the negative pressure gas pipeline 1, and the waste gas in the gas source tank 3 is sucked into the negative pressure gas pipeline 1 and mixed with the. The gas source tanks 3 are arranged in a plurality, the gas source tanks 3 are connected to the waste gas main pipe 14 in parallel, the waste gas main pipe 14 is provided with the main valve 2 for controlling the amount of waste gas entering the negative pressure gas pipeline 1, the main valve 2 is a self-operated regulating valve and is regulated along with the change of negative pressure in the negative pressure gas pipeline 1, when the negative pressure suction force in the negative pressure gas pipeline 1 is increased, the amount of waste gas flowing through the main valve 2 is increased, at the moment, the main valve 2 is automatically regulated, the opening degree is reduced, and the balance of waste gas entering the negative pressure gas pipeline 1 is ensured. The end part of the waste gas main pipe 14 is communicated with the side wall of the negative pressure gas pipeline 1, and one negative pressure gas pipeline 1 can absorb and uniformly treat the waste gas in the plurality of gas source tanks 3 in a negative pressure mode. The gas source tank 3 is connected with a nitrogen gas source through a pressure pipe 6, the nitrogen gas source is a nitrogen tank 5 filled with high-pressure nitrogen, one end of the pressure pipe 6 is connected with the nitrogen tank 5, the other end is communicated with the top of the gas source tank 3, because a plurality of gas source tanks 3 are arranged, the top of each gas source tank 3 is communicated with a branch pipe, the branch pipes are connected with the side wall of the pressurizing pipe 6 in parallel, high-pressure nitrogen in the nitrogen tank 5 respectively enters the gas source tanks 3 through the pressurizing pipe 6 and the branch pipes, the gas source tank 3 is pressurized, after the pressure is increased, the waste gas in the gas source tank 3 can enter the negative pressure gas pipeline 1 more smoothly, and because the nitrogen filled in the gas source tank 3 does not contain oxygen, the oxygen concentration in the waste gas is prevented from increasing, after being mixed with coal gas, the coal gas is combusted and exploded, a first valve 7 is arranged on each branch pipe, and the filling amount of nitrogen in each gas source tank 3 is independently controlled by a plurality of first valves 7. Install heating pipe 8 between air supply jar 3 and negative pressure gas pipeline 1, heating pipe 8 and air supply jar 3 intercommunication, heating pipe 8 fills into high temperature steam to air supply jar 3 and negative pressure gas pipeline 1, and high temperature steam heats the waste gas in air supply jar 3, prevents that substances such as tar, naphthalene in the waste gas from causing the jam because of low temperature crystallization adheres to at the pipeline inner wall, is equipped with second valve 9 on the heating pipe 8 for the filling volume of control high temperature steam. The high-temperature steam contains no oxygen, so that the oxygen concentration in the waste gas is prevented from increasing.
The utility model provides a coking chemical waste gas treatment device, compared with the prior art, will store and to smelt coking gas source jar 3 and negative pressure gas piping 1's lateral wall intercommunication of producing waste gas, through coking chemical product gas's in the negative pressure gas piping 1 flow, form the negative pressure, will smelt coking and produce waste gas and inhale negative pressure gas piping 1 in, mix with coal gas, get into subsequent purification process. The top of the gas source tank 3 is also communicated with a nitrogen gas source, the nitrogen gas source charges nitrogen into the gas source tank 3 to ensure the pressure balance in the gas source tank 3, and further ensure that the coking waste gas can enter the negative pressure gas pipeline 1 through the negative pressure formed by the gas. A heating pipe 8 is communicated between the gas source tank 3 and the negative pressure gas pipeline 1, and hot gas in the heating pipe 8 heats coking chemical waste gas, so that tar, naphthalene and other substances in the coking chemical waste gas are prevented from being crystallized and attached to the inner wall of the pipeline to cause pipeline blockage.
As the utility model provides a coking chemical waste gas treatment device's a specific implementation mode, the heating of the high-temperature steam in the heating pipe 8, waste gas and coal gas have higher temperature, after getting into subsequent processing apparatus, high-temperature gas can harm subsequent processing apparatus on the one hand, on the other hand, high-temperature gas has certain potential safety hazard, so, the coal gas that thoughtlessly has waste gas is before carrying out subsequent processing apparatus, need through the cooling, install primary cooler 13 on negative pressure gas pipeline 1, gas and the waste gas mist cooling of high temperature, primary cooler 13 is installed in the low reaches position of gas source jar 3, guarantee that all the mist through the heating all flows through primary cooler 13. It should be noted that the primary cooler 13 is a primary cooler in an original production process, i.e., a primary cooler on an original negative pressure gas pipeline, and does not need to be newly added with equipment.
As a specific implementation manner of the coking chemical waste gas treatment device, air supply tank 3 and exhaust manifold 14 pass through connecting pipe 4 intercommunication, the one end of connecting pipe 4 and the top intercommunication of air supply tank 3, the other end intercommunication is at exhaust manifold 14's lateral wall, the pressurized waste gas of passing through nitrogen gas in a plurality of air supply tanks 3 gets into exhaust manifold 14 via respective connecting pipe 4, get into negative pressure gas conduit 1 via exhaust manifold 14 again, all install a third valve 10 on every connecting pipe 4, a volume for controlling the waste gas entering negative pressure gas conduit 1 in each air supply tank 3 respectively. The third valve 10 is a self-operated regulating valve, pressure setting is performed on the third valve, the third valve 10 is fully opened when the pressure value is larger than a set value, and the third valve 10 is half-opened when the pressure value is smaller than the set value. The heating pipe 8 is communicated with the connecting pipe 4, high-temperature steam in the heating pipe 8 is introduced into the connecting pipe 4 and then enters the gas source tank 3 and the negative pressure gas pipeline 1, and therefore substances such as tar and naphthalene in waste gas are prevented from blocking the connecting pipe 4, the waste gas main pipe 14 and the negative pressure gas pipeline 1 and being attached to the top of the gas source tank 3.
As the utility model provides a coking chemical waste gas treatment device's a concrete implementation mode, air supply tank 3's top installation pressure transmitter 11, the input of 11 connection director (not shown in the figure) of pressure transmitter, first valve 5 on the forcing pipe is the solenoid valve, the output and the first valve 5 of controller are connected, pressure transmitter 11 gives the controller with the pressure transmission in the air supply tank 3, the controller carries out the analysis back to the pressure of 3 inside air supply tanks, judge whether need pressurize to 3 air supply tanks, and send control command for first valve 5, if: when the pressure transmitter 11 detects that the pressure in the gas source tank 3 is less than 0Pa, the controller controls the first valve 5 to be opened, nitrogen is filled into the gas source tank 3, when the pressure transmitter 11 detects that the pressure in the gas source tank 3 is greater than 0Pa, the controller controls the first valve 5 to be closed, the nitrogen filling is stopped, the pressure in the gas source tank 3 is always kept slightly greater than the pressure value in the negative pressure gas pipeline 1, the waste gas in the gas source tank 3 can be smoothly sucked by the gas negative pressure flowing in the negative pressure gas pipeline 1, and the external air can also be ensured not to enter the gas source tank 3.
As a specific implementation manner of the coking chemical waste gas treatment device provided by the utility model, the safety valve 12 is installed at the top of the gas source tank 3, and the gas source tank 3 is prevented from being damaged due to the overlarge pressure in the gas source tank 3 caused by faults or other sudden situations.
As the utility model provides a coking chemical waste gas treatment device's a concrete implementation mode, in order to prevent that the oxygen in the external air from entering air supply tank 3, cause the waste gas oxygen content in air supply tank 3 to rise and form the potential safety hazard, air supply tank 3 chooses the sealed tank body for use, and the sealed tank body has also guaranteed that the waste gas in the air supply tank 3 does not leak.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. Smelt coking and produce exhaust treatment device, its characterized in that includes:
the negative pressure gas pipeline is used for conveying coking chemical product gas and forming negative pressure;
the gas source tank is used for storing waste gas produced by coking, and the top of the gas source tank is communicated with the negative pressure gas pipeline;
one end of the pressurizing pipe is communicated with the top of the gas source tank, the other end of the pressurizing pipe is connected with a nitrogen gas source, and a first valve is arranged on the pressurizing pipe;
the heating pipe is arranged between the gas source tank and the negative pressure gas pipeline, is communicated with the gas source tank and is used for heating gas in the gas source tank, and a second valve is arranged on the heating pipe.
2. The coking and chemical waste gas treatment device of claim 1, wherein: and a primary cooler is arranged on the negative pressure gas pipeline behind the gas source tank.
3. The coking and chemical waste gas treatment device of claim 1, wherein: and a connecting pipe is arranged between the gas source tank and the negative pressure gas pipeline, a third valve is arranged on the connecting pipe, and the heating pipe is communicated with the connecting pipe.
4. The coking and chemical waste gas treatment device of claim 1, wherein: the top of air source jar is equipped with pressure transmitter, pressure transmitter is connected with the controller electricity, the controller with first valve electricity is connected for adjust the pressure in the air source jar.
5. The coking and chemical waste gas treatment device of claim 1, wherein: and a safety valve is arranged at the top of the air source tank.
6. The coking and chemical waste gas treatment device according to any one of claims 1 to 5, wherein: the air source tank is a sealed tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920991331.4U CN210356631U (en) | 2019-06-27 | 2019-06-27 | Coking waste gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920991331.4U CN210356631U (en) | 2019-06-27 | 2019-06-27 | Coking waste gas treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210356631U true CN210356631U (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920991331.4U Active CN210356631U (en) | 2019-06-27 | 2019-06-27 | Coking waste gas treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210356631U (en) |
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2019
- 2019-06-27 CN CN201920991331.4U patent/CN210356631U/en active Active
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