Waste gas treatment device and electrical tar precipitator
By designing the exhaust gas treatment device, the gas collection pipe, steam assembly and cooling assembly are used to treat the tar mist in the electric tar trap, the problem of tar mist being unable to be treated is solved, the effective treatment of exhaust gas and the recycling of gas is achieved, and the environment and health and safety are ensured.
Patent Information
- Application Number
- CN202421036965.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-13
AI Technical Summary
During the purification of coke oven gas, the tar mist generated by the electric tar during maintenance cannot be effectively treated, resulting in volatile gases that are prone to explosion when exposed to open flames, seriously polluting the environment and endangering employees' health.
A waste gas treatment device is designed, including a gas collecting pipe, a steam assembly and a cooling assembly. The tar mist in the electric tar is collected through the gas collecting pipe, and the steam assembly replaces the exhaust gas. After the cooling assembly is cooled, it forms a gas recycling process to prevent the exhaust gas from being discharged into the atmosphere.
It effectively solves the problem of volatile gases produced by tar in open flames and explosions, prevents pollution and hazards, ensures the on-site environment and employees' health, has a simple structure, is cheap to build, and does not produce excess hazardous waste.
Smart Images
Figure CN222658900U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of coke oven gas purification, and specifically relates to an exhaust gas treatment device and an electric tar collector. Background Art
[0002] The main function of the electrostatic tar collector in the coke oven gas purification process is to capture the tar mist entrained in the gas. During maintenance, the tar attached to the tank wall produces volatile gas, which is very likely to explode when exposed to open flames. A large amount of steam needs to be introduced in advance to remove the tar and gas inside. However, during the steaming process, it is directly discharged into the atmosphere through the top venting, which seriously pollutes the environment and the physical and mental health of the factory workers. Utility Model Content
[0003] The purpose of the present application is to provide an exhaust gas treatment device and an electric tar precipitator, aiming to solve the technical problem that the tar mist in the electric tar precipitator cannot be treated to at least a certain extent.
[0004] In order to solve the above technical problems, this application adopts the following technical solutions:
[0005] A first aspect of an embodiment of the present application provides a waste gas treatment device for treating waste gas generated by steam blowing of an electric tar precipitator, the waste gas treatment device comprising: a gas collecting pipe connected to the electric tar precipitator, a first control valve being arranged in the gas collecting pipe; a steam component connected to the gas collecting pipe, the steam component passing steam into the electric tar precipitator through the gas collecting pipe to displace the waste gas in the electric tar precipitator; a cooling component connected to the steam component, the displaced waste gas being cooled by the cooling component and then discharged.
[0006] In some embodiments, the steam assembly includes: an air supply pipe connected to the air collecting pipe; and a purge unit connected to the air supply pipe, the purge unit providing steam into the air supply pipe.
[0007] In some embodiments, the steam assembly further comprises a first pressure gauge and a suction gauge, wherein the first pressure gauge and the suction gauge are connected to the gas supply pipe.
[0008] In some embodiments, the purge unit includes: a purge pipe, one end of which is connected to the gas source, and the other end of which is connected to both ends of the gas supply pipe; and a second control valve disposed in the purge pipe.
[0009] In some embodiments, the cooling assembly includes: a cooling pipe, connected to the purge pipe, through which the displaced exhaust gas enters the cooling pipe; a third control valve, arranged at the connection between the cooling pipe and the purge pipe; a cooling unit, arranged on both sides of the cooling pipe, and the cooling unit is used to reduce the temperature inside the cooling pipe.
[0010] In some embodiments, the cooling unit includes a pre-cooler, and the cooling pipe is cooled by cold air generated by the pre-cooler.
[0011] In some embodiments, the cooling assembly further includes: a drain pipe connected to the cooling pipe, the drain pipe being used to discharge condensed water in the cooling pipe; and a drainer connected to the drain pipe.
[0012] In some embodiments, the cooling assembly further includes: an exhaust pipe connected to the cooling pipe, the exhaust pipe being used to collect and recycle the coal gas generated after the exhaust gas is cooled; and a fourth control valve disposed on the exhaust pipe.
[0013] In some embodiments, a second pressure gauge is provided on the cooling pipe.
[0014] A second aspect of an embodiment of the present application provides an electric tar precipitator, on which the exhaust gas treatment device is provided.
[0015] It can be seen from the above technical solution that the present application has at least the following advantages and positive effects:
[0016] A waste gas treatment device in the present application collects tar mist in the electric tar precipitator by setting a gas collecting pipe, and then cools it through a cooling component to form coal gas for recycling, thereby preventing the exhaust gas from being discharged into the atmosphere, eliminating the generation of odor during maintenance, ensuring the on-site environment and the health of employees, and effectively solving the technical problem of volatile gas generated by tar and explosion when encountering open flames. The device has a simple structure, low construction cost, and does not generate excess hazardous waste.
[0017] An electric tar precipitator in the present application collects tar mist in the electric tar precipitator by setting a gas collecting pipe, and then cools it through a cooling component to form coal gas for recycling, thereby preventing the exhaust gas from being discharged into the atmosphere, eliminating the generation of odor during maintenance, ensuring the on-site environment and the health of employees, and effectively solving the technical problem of volatile gas generated by tar and explosion when encountering open flames. The device has a simple structure, low construction cost, and does not generate excess hazardous waste. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.
[0019] Figure 1 It is a structural schematic diagram of an exhaust gas treatment device in an embodiment of the present application.
[0020] The accompanying drawings are marked as follows: 1. electrostatic precipitator; 2. gas collecting pipe; 3. first control valve; 4. gas supply pipe; 5. first pressure gauge; 6. suction gauge; 7. second pressure gauge; 8. purge pipe; 9. second control valve; 10. cooling pipe; 11. third control valve; 12. pre-cooler; 13. drain pipe; 14. exhaust pipe; 15. fourth control valve; 16. fifth control valve. DETAILED DESCRIPTION
[0021] In order to make the technical personnel in the technical field to which the present application belongs to understand the present application more clearly, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0022] See also Figure 1 .
[0023] Figure 1 is a schematic diagram of the structure of an exhaust gas treatment device in an embodiment of the present application; Figure 1 As shown, the device is used to treat the waste gas generated by the steam blowing of the electric tar collector 1. The waste gas treatment device includes: a gas collecting pipe 2, connected to the electric tar collector 1, and a first control valve 3 is arranged in the gas collecting pipe 2; a steam component, connected to the gas collecting pipe 2, and the steam component passes steam into the electric tar collector 1 through the gas collecting pipe 2 to replace the waste gas in the electric tar collector 1; a cooling component, connected to the steam component, and the replaced waste gas is cooled by the cooling component and then discharged. The waste gas (mainly tar mist) in the electric tar collector 1 is collected by setting the gas collecting pipe 2, and then cooled by the cooling component to form gas for recycling, so as to prevent the waste gas from steam blowing from being discharged into the atmosphere, and to prevent the generation of odor during maintenance, to ensure the on-site environment and the health of employees, and to effectively solve the technical problems of volatile gas generated by tar and explosion when encountering open flames. The device has a simple structure, low construction cost, and does not generate redundant hazardous waste.
[0024] In some embodiments, Figure 1 As shown, the gas from multiple electric tar collectors 1 is collected through multiple gas collecting pipes 2 and then processed centrally through cooling components, which can greatly improve the work efficiency.
[0025] In some embodiments, the steam component includes: an air supply pipe 4 , which is connected to the air collecting pipe 2 ; and a purge unit, which is connected to the air supply pipe 4 , and provides steam into the air supply pipe 4 .
[0026] In some embodiments, the steam component further includes a first pressure gauge 5 and a suction gauge 6 , and the first pressure gauge 5 and the suction gauge 6 are connected to the air supply pipe 4 .
[0027] In some embodiments, the purge unit includes: a purge pipe 8, one end of which is connected to the gas source, and the other end of which is connected to both ends of the gas supply pipe 4; a second control valve 9, which is arranged in the purge pipe 8. Specifically, two purge pipes 8 are provided, and the two purge pipes 8 are connected to both ends of the gas supply pipe 4 respectively.
[0028] In some embodiments, the cooling assembly includes: a cooling pipe 10, which is connected to the purge pipe 8, and the replaced exhaust gas is passed into the cooling pipe 10 through the purge pipe 8; a third control valve 11, which is arranged at the connection between the cooling pipe 10 and the purge pipe 8; a cooling unit, which is arranged on both sides of the cooling pipe 10, and the cooling unit is used to reduce the temperature inside the cooling pipe 10.
[0029] In some embodiments, the cooling unit includes a pre-cooler 12, and the cooling pipe 10 is cooled by the cold air generated by the pre-cooler 12; in this embodiment, the pre-cooler 12 is an existing equipment in the factory, and the temperature is reduced by introducing a pressure gauge near the pre-cooler 12.
[0030] In some embodiments, the cooling assembly further includes: a drain pipe 13 connected to the cooling pipe 10, the drain pipe 13 being used to discharge waste liquid generated after the exhaust gas is cooled; a drainer connected to the drain pipe 13, and a fifth control valve 16 is provided on the drain pipe 13.
[0031] In some embodiments, the cooling assembly further includes: an exhaust pipe 14 connected to the cooling pipe 10 , the exhaust pipe 14 being used to collect and recycle the coal gas generated after the exhaust gas is cooled; and a fourth control valve 15 disposed on the exhaust pipe 14 .
[0032] In some embodiments, a second pressure gauge 7 is provided on the cooling pipe 10 .
[0033] In some embodiments, a heater is provided in the gas collecting pipe 2 to ensure the temperature in the pipe and prevent tar and naphthalene in the exhaust gas from clogging the pipe.
[0034] In some embodiments, when in use, first open the third control valve 11 and the fourth control valve 15, observe that the readings of the first pressure gauge 5 and the second pressure gauge 7 are negative pressure, open the second control valve 9, purge the pipeline with steam, ensure that the pipeline is unobstructed, close the second control valve 9, open the first control valve 3, and pass steam into an electric tar precipitator 1 to displace the exhaust gas. During this period, pay attention to the reading of the suction meter 6, and control the suction at -2 to 15 KPa through the opening of the steam valve of the electric tar precipitator 1. The displaced exhaust gas enters the cooling pipe 10 through the purge pipe 8 for cooling. The coal gas generated after cooling is discharged through the exhaust pipe 14 and then recycled. The condensed water generated after cooling is discharged through the drain pipe 13.
[0035] A second aspect of an embodiment of the present application provides an electric tar precipitator, on which the exhaust gas treatment device is provided.
[0036] It can be seen from the above technical solution that the present application has at least the following advantages and positive effects:
[0037] A waste gas treatment device in the present application collects tar mist in the electric tar precipitator by setting a gas collecting pipe, and then cools it through a cooling component to form coal gas for recycling, thereby preventing the exhaust gas from being discharged into the atmosphere, eliminating the generation of odor during maintenance, ensuring the on-site environment and the health of employees, and effectively solving the technical problem of volatile gas generated by tar and explosion when encountering open flames. The device has a simple structure, low construction cost, and does not generate excess hazardous waste.
[0038] An electric tar precipitator in the present application collects tar mist in the electric tar precipitator by setting a gas collecting pipe, and then cools it through a cooling component to form coal gas for recycling, thereby preventing the exhaust gas from being discharged into the atmosphere, eliminating the generation of odor during maintenance, ensuring the on-site environment and the health of employees, and effectively solving the technical problem of volatile gas generated by tar and explosion when encountering open flames. The device has a simple structure, low construction cost, and does not generate excess hazardous waste.
[0039] Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0041] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0042] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0043] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.
Claims
1. A waste gas treatment device for treating waste gas generated by the steam blowing of an electric tar collector, characterized in that: The exhaust gas treatment device comprises: A gas collecting pipe connected to the electric tar collector, wherein a first control valve is arranged in the gas collecting pipe; A steam component connected to the gas collecting pipe, wherein the steam component passes steam into the electric tar collector through the gas collecting pipe to replace the exhaust gas in the electric tar collector; The cooling component is connected to the steam component, and the displaced exhaust gas is cooled by the cooling component and then discharged.
2. The exhaust gas treatment device according to claim 1, characterized in that: The steam assembly comprises: An air supply pipe connected to the air collecting pipe; A purge unit is connected to the air supply pipe, and the purge unit provides steam into the air supply pipe.
3. The exhaust gas treatment device according to claim 2, characterized in that: The steam assembly further comprises a first pressure gauge and a suction gauge, wherein the first pressure gauge and the suction gauge are connected to the gas supply pipe.
4. The exhaust gas treatment device according to claim 2, characterized in that: The purge unit comprises: A purge pipe, one end of which is connected to the gas source, and the other end of which is connected to both ends of the gas supply pipe; The second control valve is arranged in the purge pipe.
5. The exhaust gas treatment device according to claim 4, characterized in that: The cooling assembly comprises: A cooling pipe connected to the purge pipe, through which the replaced exhaust gas passes into the cooling pipe; A third control valve is arranged at the connection between the cooling pipe and the purge pipe; The cooling unit is arranged on both sides of the cooling pipe, and the cooling unit is used to reduce the temperature in the cooling pipe.
6. The exhaust gas treatment device according to claim 5, characterized in that: The cooling unit includes a primary cooler, and the cooling pipe is cooled by cold air generated by the primary cooler.
7. The exhaust gas treatment device according to claim 5, characterized in that: The cooling assembly also includes: A drain pipe connected to the cooling pipe, the drain pipe is used to discharge condensed water in the cooling pipe; A drainer is connected to the drain pipe.
8. The exhaust gas treatment device according to claim 5, characterized in that: The cooling assembly also includes: An exhaust pipe connected to the cooling pipe, the exhaust pipe is used to collect the coal gas generated after the exhaust gas is cooled and recycled; The fourth control valve is arranged in the exhaust pipe.
9. The exhaust gas treatment device according to claim 5, characterized in that: The cooling pipe is provided with a second pressure gauge.
10. An electric tar collector, characterized in that: The electric tar collector is provided with a waste gas treatment device as claimed in any one of claims 1 to 9.