CN218485464U - Online automatically cleaning coke oven gas filter equipment - Google Patents
Online automatically cleaning coke oven gas filter equipment Download PDFInfo
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- CN218485464U CN218485464U CN202222057591.9U CN202222057591U CN218485464U CN 218485464 U CN218485464 U CN 218485464U CN 202222057591 U CN202222057591 U CN 202222057591U CN 218485464 U CN218485464 U CN 218485464U
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Abstract
The invention discloses an online self-cleaning coke oven gas filtering device, which comprises two self-cleaning filters, wherein a gas inlet of each self-cleaning filter is connected with a gas inlet pipe through a gas inlet electric valve, a gas outlet is connected with a gas outlet pipe through a gas outlet electric valve, a high-pressure steam inlet of each self-cleaning filter is connected with a high-pressure steam inlet pipe through a steam inlet electric valve, and a wastewater discharge port is connected with a wastewater discharge pipe through a wastewater discharge electric valve; the control ends of the gas inlet electric valve, the gas outlet electric valve, the steam inlet electric valve and the wastewater discharge electric valve are connected with the output end of the controller. The invention realizes the uninterrupted filtration of coke oven gas by the automatic online switching and the automatic cleaning of the two self-cleaning filters, thereby not only ensuring the uninterrupted and stable operation of the compressor, reducing the times of shutdown maintenance and reducing the energy consumption of the filtering device, but also greatly reducing the labor intensity of maintenance workers.
Description
Technical Field
The invention relates to an online self-cleaning coke oven gas filtering device arranged at an inlet of a coke oven gas compressor, belonging to the technical field of coking equipment.
Background
The coke oven gas compressor is a machine for compressing coke oven gas to improve the gas pressure, and the common coke oven gas compressors are generally screw compressors and reciprocating compressors due to more impurities in the coke oven gas, and the reciprocating piston compressors are often selected when the requirement on the compression ratio is higher.
Reciprocating piston compressors compress gas by reciprocating a piston and opening and closing an intake valve and an exhaust valve. Because the coke oven gas contains more impurities, after the coke oven gas compressor operates for a period of time, the impurities in the coke oven gas are often adhered to the valve plate, so that the compressor does not start to be pressed or the valve plate is damaged, and the normal operation of the compressor is influenced, therefore, a filter is generally arranged at the inlet of the coke oven gas compressor to filter out the solid impurities in the coke oven gas. However, after the filter operates for a long time, the filter screen is blocked, so that the resistance of the filter is increased, the pressure at the inlet of the compressor is reduced, the pressure at the outlet of the compressor is reduced, and the efficiency is reduced. At the moment, the compressor needs to be stopped, the inlet filter is opened, and the filter screen is cleaned, so that the smooth production is influenced, and the labor intensity of workers is increased. Therefore, it is necessary to design an online self-cleaning coke oven gas filtering device.
Disclosure of Invention
The invention aims to provide an online self-cleaning coke oven gas filtering device aiming at the defects of the prior art so as to ensure that a coke oven gas compressor continuously and stably operates and reduce the labor intensity of workers.
In order to realize the purpose, the invention adopts the following technical scheme:
an online self-cleaning coke oven gas filtering device comprises two self-cleaning filters, wherein a gas inlet of each self-cleaning filter is connected with a gas inlet pipe through a gas inlet electric valve, a gas outlet is connected with a gas outlet pipe through a gas outlet electric valve, a high-pressure steam inlet of each self-cleaning filter is connected with a high-pressure steam inlet pipe through a steam inlet electric valve, and a wastewater discharge port is connected with a wastewater discharge pipe through a wastewater discharge electric valve; the control ends of the gas inlet electric valve, the gas outlet electric valve, the steam inlet electric valve and the wastewater discharge electric valve are connected with the output end of the controller.
The self-cleaning device comprises a shell, a filter element and a self-cleaning device, wherein a coal gas outlet and a high-pressure steam inlet are arranged at the top of the shell, a wastewater discharge port is arranged at the bottom of the shell, a coal gas inlet is arranged at the lower part of the side wall of the shell, the filter element is arranged in the shell, an inner cavity of the filter element is communicated with the coal gas outlet and the high-pressure steam inlet, a cavity formed between the filter element and the shell is communicated with the coal gas inlet and the wastewater discharge port, and the self-cleaning device is arranged in the filter element and connected with the high-pressure steam inlet.
The self-cleaning device comprises a sealing rotating mechanism, a vertical rotating pipe, a back-blowing spray pipe and a cleaning spray pipe, wherein the back-blowing spray pipe and the cleaning spray pipe are positioned on the side part of the rotating pipe, the lower end of the rotating pipe is sealed, the upper end of the rotating pipe is connected with a high-pressure steam inlet through the sealing rotating mechanism, the back-blowing spray pipe is L-shaped, the steam inlet end of the back-blowing spray pipe is vertically connected with the rotating pipe, the axis of the steam outlet end of the back-blowing spray pipe is perpendicular to the axis of the rotating pipe, the cleaning spray pipe is a straight pipe, the steam inlet end of the back-blowing spray pipe is vertically connected with the rotating pipe, and the steam outlet end faces towards the filter element.
According to the online self-cleaning coke oven gas filtering device, the sealing rotating mechanism comprises a fixing sleeve and a bearing, the upper end of the fixing sleeve is connected with the high-pressure steam inlet, the lower end of the fixing sleeve is fixedly connected with the outer ring of the bearing, and the inner ring of the bearing is fixedly connected with the upper end of the rotating pipe.
According to the on-line self-cleaning coke oven gas filtering device, a differential pressure transmitter is arranged between the gas outlet of each self-cleaning filter and the gas inlet pipe, and the signal output end of the differential pressure transmitter is connected with the input end of the controller.
According to the online self-cleaning coke oven gas filtering device, the sealing carbon ring is arranged between the upper end of the rotating pipe and the bearing.
In the online self-cleaning coke oven gas filtering device, 4 back-blowing spray pipes are arranged and are uniformly distributed around the rotating pipe.
According to the on-line self-cleaning coke oven gas filtering device, the cleaning spray pipes are arranged in a plurality of groups and are arranged along the axial direction of the rotating pipe, and each group of cleaning spray pipes comprises 4 cleaning spray pipes which are uniformly distributed around the rotating pipe.
According to the on-line self-cleaning coke oven gas filtering device, the back-blowing spray pipes are connected to the upper ends of the rotating pipes, and the multiple groups of cleaning spray pipes are located below the back-blowing spray pipes.
According to the online self-cleaning coke oven gas filtering device, the controller is a PLC controller.
The invention realizes the uninterrupted filtration of coke oven gas by the automatic online switching and automatic cleaning of the two self-cleaning filters, thereby not only ensuring the uninterrupted and stable operation of the compressor, reducing the times of shutdown maintenance and reducing the energy consumption of the filtering device, but also greatly reducing the labor intensity of maintenance workers.
Drawings
The invention is described in further detail below with reference to the drawings and the detailed description.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a self-cleaning filter;
FIG. 3 is an enlarged partial schematic view of FIG. 2;
fig. 4 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 3.
The reference numbers in the figures are as follows: 1. the device comprises a gas inlet, 2, a high-pressure steam inlet, 3, a gas outlet, 4, a shell, 5, a filter element, 6, a sealing rotating mechanism, 7, a back-blowing spray pipe, 8, a cleaning spray pipe, 9, a waste water discharge port, 10, a fixing sleeve, 11, a bearing, 12, a sealing carbon ring, 13, a gas inlet pipe, 14, a gas outlet pipe, 15, a high-pressure steam inlet pipe, 16, a waste water discharge pipe, 17, a gas inlet electric valve, 18, a gas outlet electric valve, 19, a steam inlet electric valve, 20, a waste water discharge electric valve, 21, a differential pressure transmitter, 22, a controller, 23, a self-cleaning filter, 24 and a rotating pipe.
Detailed Description
The invention provides an on-line self-cleaning coke oven gas filtering device which can realize the automatic switching of a filter and the automatic cleaning of the filter on the premise of ensuring the normal operation of a coke oven gas compressor and prevent the normal operation of equipment from being influenced by the serious blockage of the filter.
In order to prevent the resistance of the inlet filter of the compressor from being too large and ensure the compressor to operate continuously, the following technical problems must be solved:
1. the filter must implement online switching;
2. the filter must have a self-cleaning function;
3. the filter must be automatically switched;
therefore, the new coke oven gas filtering device is designed and manufactured according to the requirements.
The invention adds two parallel self-cleaning filters at the inlet of the gas compressor, adds an electric valve and a differential pressure transmitter at the inlet and outlet of the self-cleaning filter, adds a self-cleaning device in a filter element, adds a sewage discharge device at the bottom of the self-cleaning filter, and controls the valve to open and close through a PLC, thereby realizing the automatic on-line switching of the filter and the automatic cleaning of the filter.
Referring to fig. 1-4, the present invention comprises a gas inlet pipe 13, a gas outlet pipe 14, a high pressure steam inlet pipe 15, a PLC controller 22, and two self-cleaning filters 23, each self-cleaning filter 23 being provided with: the device comprises a shell 4, a gas inlet 1, a high-pressure steam inlet 2, a gas outlet 3, a filter element 5, a sealing rotary mechanism 6, a rotary pipe 24, a back-blowing spray pipe 7, a cleaning spray pipe 8, a waste water discharge port 9, a waste water discharge pipe 16, a gas inlet electric valve 17, a gas outlet electric valve 18, a steam inlet electric valve 19, a waste water discharge electric valve 20 and a differential pressure transmitter 21.
Fig. 1 shows that each self-cleaning filter 23 is connected with a gas inlet pipe 13 through a gas inlet electric valve 17, is connected with a gas outlet pipe 14 through a gas outlet electric valve 18, is connected with a high-pressure steam inlet pipe 15 through a steam inlet electric valve 19, is connected with a wastewater discharge pipe 16 through a wastewater discharge electric valve 20, a differential pressure transmitter 21 is connected between a gas outlet 3 of the self-cleaning filter 23 and the gas inlet pipe 13, the two self-cleaning filters 23 are connected in parallel, and a controller 22 reads the differential pressure value of the two differential pressure transmitters 21 and controls the opening and closing of the gas inlet electric valve 17, the gas outlet electric valve 18, the steam inlet electric valve 19 and the wastewater discharge electric valve 20.
FIG. 2 shows that coke oven gas enters a housing 4 of a self-cleaning filter 23 from a gas inlet 1, is filtered by a filter element 5 and then is discharged from a gas outlet 3, a rotary pipe 24 is connected with a high-pressure steam inlet 2 through a sealing rotary mechanism 6, a back-blowing spray pipe 7 and a cleaning spray pipe 8 are both fixed on the rotary pipe 24, and a waste water discharge port 9 is positioned at the bottom of the housing 4.
Fig. 3 shows that the sealing and rotating mechanism 6 comprises a fixed sleeve 10, a bearing 11 and a sealing carbon ring 12, the upper end of the fixed sleeve 10 is fixed with the high-pressure steam inlet 2, the lower end of the fixed sleeve is fixed with the outer ring of the bearing 11, a rotating pipe 24 is fixed with the inner ring of the bearing 11, the lower end of the fixed sleeve 10 is not in contact with the rotating pipe 24, the rotating pipe 24 can rotate freely, and the sealing carbon ring 12 is arranged between the upper end of the rotating pipe 24 and the bearing 11 to play a sealing role.
Fig. 1 and 4 show that the upper end of the rotary pipe 24 is connected with 4 back-blowing spray pipes 7, a plurality of groups of cleaning spray pipes 8 are arranged below the back-blowing spray pipes 7, each group of 4 cleaning spray pipes 8 is fixed with the rotary pipe 24.
In the invention, coke oven gas is purified by the self-cleaning filters 23, the two self-cleaning filters 23 are switched to use, when the first self-cleaning filter 23 operates (functions as a filter), the second self-cleaning filter 23 is standby and self-cleans, and when the second self-cleaning filter 23 operates, the first self-cleaning filter 23 is standby and self-cleans. When a certain self-cleaning filter 23 runs, the gas inlet electric valve 17 and the gas outlet electric valve 18 are opened; when a certain self-cleaning filter 23 is in standby, the steam inlet electric valve 19 and the wastewater discharge electric valve 20 of the self-cleaning filter are opened to clean the filter element 5, high-pressure steam is sprayed out through the blowback nozzle 7 in the cleaning process, the reaction force of the high-pressure steam enables the rotary pipe 24 to continuously rotate through the sealing rotary mechanism 6, the high-pressure steam is sprayed out through the cleaning nozzle 8 to rotationally wash the filter element 5, the steam inlet electric valve 19 is closed after 60 minutes of cleaning, the wastewater discharge electric valve 20 is closed after 5 minutes, and vice versa. When the differential pressure value of the differential pressure transmitter 21 of the self-cleaning filter 23 in the running state reaches 5Kpa, the filter element 5 is indicated to be blocked, the gas inlet electric valve 17 and the gas outlet electric valve 18 of the standby self-cleaning filter 23 are opened, the gas inlet electric valve 17 and the gas outlet electric valve 18 of the self-cleaning filter 23 in the running state are closed after 1 minute, and then the steam inlet electric valve 19 and the wastewater discharge electric valve 20 are opened to clean the blocked filter element 5, or vice versa.
According to the invention, through automatic online switching and automatic cleaning of the two self-cleaning filters, uninterrupted filtering of coke oven gas is realized, so that uninterrupted operation of the compressor is realized, the times of shutdown maintenance of the compressor are reduced, and the resistance of the filter is reduced, thereby reducing energy consumption and ensuring long-term safe and stable operation of the compressor. In addition, the self-cleaning of the filter can greatly reduce the workload of workers for overhauling, and the automation level of the equipment is improved. Has obvious economic benefit and social benefit.
In addition, the invention has the advantages of simple structure, convenient operation, reliable operation, high automation degree, good cleaning effect and the like.
Claims (10)
1. An online self-cleaning coke oven gas filtering device is characterized by comprising two self-cleaning filters (23), wherein a gas inlet (1) of each self-cleaning filter (23) is connected with a gas inlet pipe (13) through a gas inlet electric valve (17), a gas outlet (3) is connected with a gas outlet pipe (14) through a gas outlet electric valve (18), a high-pressure steam inlet (2) of each self-cleaning filter (23) is connected with a high-pressure steam inlet pipe (15) through a steam inlet electric valve (19), and a wastewater discharge port (9) is connected with a wastewater discharge pipe (16) through a wastewater discharge electric valve (20); the control ends of the gas inlet electric valve (17), the gas outlet electric valve (18), the steam inlet electric valve (19) and the wastewater discharge electric valve (20) are connected with the output end of the controller (22).
2. The on-line self-cleaning coke oven gas filtering device as claimed in claim 1, wherein the self-cleaning filter (23) comprises a housing (4), a filter element (5) and a self-cleaning device, the top of the housing (4) is provided with a gas outlet (3) and a high-pressure steam inlet (2), the bottom of the housing is provided with a wastewater discharge port (9), the lower part of the side wall is provided with the gas inlet (1), the filter element (5) is arranged inside the housing (4), the inner cavity of the filter element (5) is communicated with the gas outlet (3) and the high-pressure steam inlet (2), the cavity formed between the filter element (5) and the housing (4) is communicated with the gas inlet (1) and the wastewater discharge port (9), and the self-cleaning device is arranged inside the filter element (5) and is connected with the high-pressure steam inlet (2).
3. The on-line self-cleaning coke oven gas filtering device as claimed in claim 2, wherein the self-cleaning device comprises a sealing rotary mechanism (6), a vertical rotary pipe (24), and a back-blowing spray pipe (7) and a cleaning spray pipe (8) which are arranged on the side of the rotary pipe (24), the lower end of the rotary pipe (24) is sealed, the upper end of the rotary pipe is connected with the high-pressure steam inlet (2) through the sealing rotary mechanism (6), the back-blowing spray pipe (7) is L-shaped, the steam inlet end of the back-blowing spray pipe is vertically connected with the rotary pipe (24), the axis of the steam exhaust end is vertical to the axis of the rotary pipe (24), the cleaning spray pipe (8) is a straight pipe, the steam inlet end of the back-blowing spray pipe is vertically connected with the rotary pipe (24), and the steam exhaust end faces the filter element (5).
4. The on-line self-cleaning coke oven gas filtering device as claimed in claim 3, wherein the sealing and rotating mechanism (6) comprises a fixing sleeve (10) and a bearing (11), the upper end of the fixing sleeve (10) is connected with the high-pressure steam inlet (2), the lower end of the fixing sleeve is fixedly connected with the outer ring of the bearing (11), and the inner ring of the bearing (11) is fixedly connected with the upper end of the rotating pipe (24).
5. The on-line self-cleaning coke oven gas filtering device of claim 4, wherein a differential pressure transmitter (21) is arranged between the gas outlet (3) and the gas inlet pipe (13) of each self-cleaning filter (23), and the signal output end of the differential pressure transmitter (21) is connected with the input end of the controller (22).
6. The on-line self-cleaning coke oven gas filtering device as claimed in claim 5, wherein a sealing carbon ring (12) is installed between the upper end of the rotating pipe (24) and the bearing (11).
7. An on-line self-cleaning coke oven gas filtration device as claimed in claim 6, wherein 4 blowback nozzles (7) are provided, which are evenly distributed around the rotary pipe (24).
8. An on-line self-cleaning coke oven gas filtering device as claimed in claim 7, wherein the cleaning nozzles (8) are arranged in a plurality of groups which are arranged along the axial direction of the rotating pipe (24), and each group of cleaning nozzles (8) comprises 4 cleaning nozzles (8) which are uniformly distributed around the rotating pipe (24).
9. The on-line self-cleaning coke oven gas filtering device as claimed in claim 8, wherein the back-blowing nozzles (7) are connected to the upper end of the rotary pipe (24), and the plurality of groups of cleaning nozzles (8) are located below the back-blowing nozzles (7).
10. The on-line self-cleaning coke oven gas filtering device of any one of claims 1 to 9, wherein the controller (22) is a PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222057591.9U CN218485464U (en) | 2022-08-05 | 2022-08-05 | Online automatically cleaning coke oven gas filter equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222057591.9U CN218485464U (en) | 2022-08-05 | 2022-08-05 | Online automatically cleaning coke oven gas filter equipment |
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| Publication Number | Publication Date |
|---|---|
| CN218485464U true CN218485464U (en) | 2023-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222057591.9U Active CN218485464U (en) | 2022-08-05 | 2022-08-05 | Online automatically cleaning coke oven gas filter equipment |
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| Country | Link |
|---|---|
| CN (1) | CN218485464U (en) |
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2022
- 2022-08-05 CN CN202222057591.9U patent/CN218485464U/en active Active
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