CN215828683U - Single carbomorphism room pressure regulating device - Google Patents
Single carbomorphism room pressure regulating device Download PDFInfo
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- CN215828683U CN215828683U CN202120965023.1U CN202120965023U CN215828683U CN 215828683 U CN215828683 U CN 215828683U CN 202120965023 U CN202120965023 U CN 202120965023U CN 215828683 U CN215828683 U CN 215828683U
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Abstract
The utility model relates to the technical field of pressure regulation of a carbonization chamber, in particular to a pressure regulation device of a single carbonization chamber, which comprises a rising pipe, a water seal cover opening and closing cylinder device, a gas collecting pipe, a valve disc regulation cylinder device, a gas control cabinet and a control system, wherein the rising pipe is connected with the water seal cover opening and closing cylinder device; the top of the ascending pipe is provided with a water seal cover which is controlled to open and close by a valve disc adjusting cylinder device; the water seal cover opening and closing cylinder device comprises a water seal cover cylinder and a guide rod parallel to the length direction of the water seal cover cylinder; the ascending pipe is communicated with the gas collecting pipe through a bridge pipe, and a water seal valve is arranged at the position where the gas collecting pipe is connected with the bridge pipe and is controlled to be opened by a valve disc adjusting cylinder device. The adjusting device is simple in structure, easy to transform for the built coke oven and low in cost, each water sealing cover is provided with one opening and closing cylinder, the opening and closing cylinders can realize automatic opening and closing of the water sealing covers, each water sealing valve is provided with one adjusting cylinder, and stepless adjustment of the opening degree of the water sealing valve is realized.
Description
Technical Field
The utility model relates to the technical field of pressure regulation of a single carbonization chamber, in particular to a pressure regulating device of the single carbonization chamber.
Background
The single carbonization chamber pressure adjusting technology is characterized in that the pressure at the bottom of each carbonization chamber is controlled to be always in a micro-positive pressure state by adjusting the flow area of the raw gas of each carbonization chamber, so that the stable adjustment of the pressure of the single carbonization chamber is realized, the stable and environment-friendly production of the coke oven is ensured, the service life of the coke oven is prolonged, the working environment of the top of the coke oven is improved, and the requirement of the automatic operation of the coke oven is met. At present, a considerable part of coke ovens open or close a water seal valve by manual cooperation to realize the communication and the isolation of raw coke gas and a gas collecting pipe of a single-hole carbonization chamber, because the coking states of all carbonization chambers are different, the pressure at the bottom of the carbonization chambers is inevitably different, even in the last stage of coking, the carbonization chambers which are particularly near an air suction pipe are easy to have negative pressure states to suck air, the yield and the quality of coke are influenced, the coke oven body is damaged, the service life of the oven body is influenced, local high temperature is caused, graphite at brick joints of the oven wall is burnt, leakage is caused, and the leakage probability of the raw coke gas is increased. With the increasing environmental protection requirements and the requirements of large-scale, green and intelligent coke ovens, the traditional method for indirectly controlling the bottom pressure of the carbonization chamber through the pressure of the gas collecting pipe is gradually eliminated.
A single carbonization chamber pressure adjusting technology is configured in part of newly built coking enterprises in China, and the technical sources mainly comprise German PROVenn technology (currently called EnviaBAT), SOPREECO technology of Paul Wurth company (PW company for short) in Baorwadt, Italy, and CPS + NG and OPR technology of medium smelting coke development resistance, wherein the PROVenn technology is that an adjusting device is arranged in a gas collecting pipe to adjust the flow area of raw coke gas by adjusting the height of a liquid level, so that the stable control and adjustment of the single carbonization chamber pressure are realized; the SOPRECO technology changes the flow resistance of raw coke oven gas through a hemispherical rotary valve, and realizes the stable control and regulation of the pressure of a single carbonization chamber; the two technologies have large changes to the interior of the gas collecting pipe, have complex structure and have certain difficulty in the reconstruction of the built coke oven.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides a pressure adjusting device for a single carbonization chamber.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a single carbonization chamber pressure regulating device comprises an ascending pipe, a water seal cover opening and closing cylinder device, a gas collecting pipe, a valve disc regulating cylinder device, a gas control cabinet and a control system; the top of the ascending pipe is provided with a water sealing cover, and the opening and closing of the water sealing cover are controlled by the water sealing cover opening and closing cylinder device; the water seal cover opening and closing cylinder device comprises a water seal cover cylinder and a guide rod parallel to the length direction of the water seal cover cylinder; a piston rod of the water seal cover cylinder is connected with an installation plate, the installation plate is connected with the water seal cover, one side of the water seal cover cylinder is provided with an upper-corner displacement travel switch and a lower-corner displacement travel switch which correspond up and down, the upper end of the guide rod is fixedly connected with the installation plate, and the lower end of the guide rod is fixedly provided with a stop block positioned between the upper-corner displacement travel switch and the lower-corner displacement travel switch; the ascending pipe is communicated with the gas collecting pipe through a bridge pipe, a water seal valve is arranged at the position where the gas collecting pipe is connected with the bridge pipe, and the opening degree of the water seal valve is controlled by the valve disc adjusting cylinder device; the valve disc adjusting cylinder device comprises a valve disc cylinder, a valve positioner and an angular displacement stroke feedback device of the valve positioner; the tail end of a piston rod of the valve disc cylinder is connected with a cylinder fork head, a swing arm is connected to the cylinder fork head, the swing arm is connected with a valve disc of the water seal valve, and an air inlet channel and an air outlet channel of the valve disc cylinder are respectively connected to a valve positioner in a sealing mode; a piston rod of the valve disc cylinder is fixedly provided with a feedback plate support, a feedback plate is fixedly arranged on the feedback plate support along the length direction of the valve disc cylinder, and one side of the feedback plate is an inclined plane; the valve positioner angular displacement stroke feedback device is arranged on one side of the inclined plane of the feedback plate and fixedly mounted on the shell of the valve disc cylinder, a feedback rod is arranged on the valve positioner angular displacement stroke feedback device, a cam is arranged at the tail end of the feedback rod, and the cam is in contact with the inclined plane of the feedback plate.
Preferably, the bridge pipe is provided with a three-way switching valve electrically connected with the control system, an outlet of the three-way switching valve is communicated with the bridge pipe, a first inlet of the three-way switching valve is communicated with a high-pressure ammonia water pipe, and a second inlet of the three-way switching valve is communicated with a low-pressure ammonia water pipe.
Preferably, the ascending pipe is provided with a pressure measuring point.
Preferably, an ear seat is fixedly mounted at the top of the shell of the water seal cover cylinder, the upper corner displacement travel switch is mounted on the ear seat, and the lower corner displacement travel switch is mounted at the bottom of the shell of the water seal cover cylinder.
Preferably, the guide rod is in sliding fit with the ear seat.
Preferably, the distance between the upper angle displacement travel switch and the lower angle displacement travel switch is equal to the stroke length of a piston rod of the water seal cover cylinder.
Preferably, the feedback plate has a right trapezoid shape, and the width of the right trapezoid shape gradually narrows from the end close to the piston rod to the other end.
Preferably, a guide plate support is fixedly arranged on the valve disc cylinder, a guide plate is fixedly arranged on the guide plate support, and a limiting hole for the feedback plate to pass through is formed in the guide plate.
Preferably, a positioner support is fixedly arranged on the guide plate support, and the valve positioner is arranged on the positioner support.
The utility model has the beneficial effects that:
1. the adjusting device has simple structure, easy modification for the built coke oven, low cost and less influence on the normal production of the built coke oven.
2. Each water seal cover is provided with an opening and closing cylinder, the opening and closing cylinders can realize automatic opening and closing of the water seal covers, the water seal covers are opened when coke is pushed, the water seal covers are closed in other states, and meanwhile, the valve position opening and closing state is fed back to the control system.
3. Every water seal valve is equipped with an air cylinder, has realized the infinitely variable control of optional position in the journey scope to the aperture of adjustment water seal valve feeds back valve position state to control system simultaneously, and the gas circuit of cylinder can be pinned to the airlock valve, makes the aperture of water seal valve can stabilize in a certain position for a long time.
Drawings
FIG. 1 is a schematic structural diagram of a single carbonization chamber pressure adjusting device according to the present invention;
fig. 2 is a schematic diagram of a minimum stroke structure of a water seal cover opening and closing cylinder device of a single carbonization chamber pressure regulating device provided by the utility model;
fig. 3 is a schematic diagram of a maximum stroke structure of a water seal cover opening and closing cylinder device of a single carbonization chamber pressure regulating device provided by the utility model;
FIG. 4 is a schematic side view of a water sealing cover opening and closing cylinder device of a single carbonization chamber pressure regulating device according to the present invention;
FIG. 5 is a schematic structural diagram of a valve disc adjusting cylinder device of a single carbonization chamber pressure adjusting device according to the present invention in a front view;
FIG. 6 is a schematic side view of a valve disc adjusting cylinder device of a single carbonization chamber pressure adjusting device according to the present invention;
fig. 7 is a schematic top view of a valve disc adjusting cylinder device of a single carbonization chamber pressure adjusting device according to the present invention.
In the figure: 1-ascending pipe, 2-water seal cover, 3-water seal cover opening and closing cylinder device, 31-upper angle displacement travel switch, 32-guide rod, 33-stop block, 34-lower angle displacement travel switch, 35-water seal cover cylinder, 36-ear seat, 37-mounting plate, 4-bridge pipe, 5-gas collecting pipe, 6-water seal valve, 7-valve disc adjusting cylinder device, 71-valve disc cylinder, 72-feedback plate, 73-positioner bracket, 74-feedback plate bracket, 75-cylinder fork, 76-guide plate, 77-guide plate bracket, 78-valve positioner, 79-valve positioner angular displacement travel feedback device, 8-three-way switching valve, 9-high pressure ammonia water pipe, 10-low pressure ammonia water pipe, 11-pneumatic control cabinet, 12-control system, 13-pressure measuring point.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, a single carbonization chamber pressure adjusting device comprises a rising pipe 1, a water seal cover opening and closing cylinder device 3, a gas collecting pipe 5, a valve disc adjusting cylinder device 7, a gas control cabinet 11 and a control system 12;
the top of the ascending pipe 1 is provided with a water seal cover 2, and the water seal cover 2 is controlled to be opened and closed by a water seal cover opening and closing cylinder device 3.
Referring to fig. 2-4, each water seal cover 2 is provided with a water seal cover opening and closing cylinder device 3, and the water seal cover opening and closing cylinder device 3 comprises a water seal cover cylinder 35, an upper-corner displacement travel switch 31 and a lower-corner displacement travel switch 34; the shell of the water seal cover cylinder 35 is fixedly installed on a platform positioned on one side of the ascending pipe 1, a piston rod of the water seal cover cylinder 35 is connected with an installation plate 37, the installation plate 37 is connected with the water seal cover 2, the top of the shell of the water seal cover cylinder 35 is fixedly installed with an ear seat 36, the ear seat 36 is installed with an upper corner displacement travel switch 31, the bottom of the shell of the water seal cover cylinder 35 is installed with a lower corner displacement travel switch 34 which is vertically corresponding to the upper corner displacement travel switch 31, the upper corner displacement travel switch 31 and the lower corner displacement travel switch 34 are respectively and electrically connected with the control system 12, a pneumatic actuating mechanism of the water seal cover cylinder 35 is electrically connected with the control system 12, a guide rod 32 which is parallel to the length direction of the water seal cover cylinder 35 is in sliding fit on the ear seat 36, the upper end of the guide rod 32 is fixedly connected with the installation plate 37, the lower end of the guide rod 32 is fixedly provided with a stop block 33 positioned between the upper corner displacement travel switch 31 and the lower corner displacement travel switch 34, the distance between the upper angular displacement travel switch 31 and the lower angular displacement travel switch 34 is equal to the stroke length of the piston rod of the water seal cover cylinder 35.
The water seal cover 2 is driven to open and close by the extension of a piston rod of the water seal cover cylinder 35, the water seal cover 2 is automatically opened and closed, when the piston rod is located at the maximum stroke, the water seal cover 2 is closed, the guide rod 32 moves upwards, the stop block 33 touches the cam of the upper-corner displacement travel switch 31, when the piston rod is located at the minimum stroke, the water seal cover 2 is opened, the guide rod 32 moves downwards, the stop block 33 touches the cam of the lower-corner displacement travel switch 34, the on-off state of the upper-corner displacement travel switch 31 and the lower-corner displacement travel switch 34 is fed back to the control system 12, and the water seal cover 2 can be stabilized at the full-open or full-close position by self weight without external support. After the water seal cover 2 is closed in place, no external force acts on the water seal cover cylinder 35, and the moving rod can be pulled manually to enable the piston rod of the water seal cover cylinder 35 to move freely.
The ascending pipe 1 is communicated with the gas collecting pipe 5 through the bridge pipe 4, a water seal valve 6 is arranged at the position where the gas collecting pipe 5 is connected with the bridge pipe 4, and the opening degree of the water seal valve 6 is controlled by a valve disc adjusting cylinder device 7.
Referring to fig. 5-7, each water seal valve 6 is provided with a valve disc adjusting cylinder device 7, and the valve disc adjusting cylinder device 7 comprises a valve disc cylinder 71, a valve positioner 78 and a valve positioner angular displacement stroke feedback device 79;
the casing of valve disc cylinder 71 is fixed on the platform of collecting 5 one side, and the piston rod end connection of valve disc cylinder 71 has cylinder fork 75, is connected with the swing arm on the cylinder fork 75, and the swing arm is connected with the valve disc of water seal valve 6.
The air inlet channel and the air outlet channel of the valve disc cylinder 71 are respectively connected to a valve positioner 78 in a sealing mode, and the valve positioner 78 locks the expansion and contraction amount of the piston rod by controlling the on-off of air entering and exiting the valve disc cylinder 71.
A feedback plate support 74 is fixedly installed on a piston rod of the valve disc cylinder 71, a feedback plate 72 is fixedly installed on the feedback plate support 74 along the length direction of the valve disc cylinder 71, the feedback plate 72 is in a right trapezoid shape, one side of the feedback plate is an inclined surface, and the width of the feedback plate is gradually narrowed from the end close to the piston rod to the other end.
The valve positioner angular displacement stroke feedback device 79 is arranged on one side of the inclined plane of the feedback plate 72 and fixedly mounted on the shell of the valve disc cylinder 71, a feedback rod is arranged on the valve positioner angular displacement stroke feedback device 79, a cam is arranged at the tail end of the feedback rod and is in contact with the inclined plane of the feedback plate 72, the valve positioner angular displacement stroke feedback device 79 is electrically connected with the control system 12, and a pneumatic actuating mechanism of the valve disc cylinder 71 is electrically connected with the control system 12.
Furthermore, a guide plate support 77 is fixedly arranged on the valve disc cylinder 71, a guide plate 76 is fixedly arranged on the guide plate support 77, and a limiting hole for the feedback plate 72 to pass through is formed in the guide plate 76, so that the feedback plate 72 can be prevented from vibrating up and down in the moving process, and the stability of the feedback plate 72 is kept.
The guide plate support 77 is fixedly provided with a positioner bracket 73, and the valve positioner 78 is mounted on the positioner bracket 73.
The opening of the water seal valve 6 is changed by extending and contracting a piston rod of the valve disc cylinder 71, the piston rod is locked at any position in a stroke by the valve positioner 78 through controlling the on-off of gas entering and exiting the valve disc cylinder 71, so that the opening of the water seal valve 6 is locked at any position, in the stroke of the piston rod, the feedback plate 72 acts on a cam of the angular displacement stroke feedback device 79 of the valve positioner, a feedback rod of the angular displacement stroke feedback device 79 of the valve positioner gradually angularly displaces, a signal is transmitted to the control system 12, namely, the valve position state is fed back to the control system 12, and when the stroke of the piston rod reaches the limit, the angular displacement stroke feedback device 79 of the valve positioner sends a signal of on or off. The water seal valve 6 can be stabilized at the fully open position or the fully closed position by self weight without external support. After the water seal valve 6 is closed in place, no external force acts on the valve disc cylinder 71, and the moving rod can be pulled manually to enable the piston rod of the valve disc cylinder 71 to move freely.
A three-way switching valve 8 electrically connected with a control system 12 is installed on the bridge pipe 4, the outlet of the three-way switching valve 8 is communicated with the bridge pipe 4, a first inlet of the three-way switching valve 8 is communicated with a high-pressure ammonia water pipe 9, and a second inlet of the three-way switching valve 8 is communicated with a low-pressure ammonia water pipe 10; the ascending pipe 1 is provided with a pressure measuring point 13, a pressure gauge is inserted into the pressure measuring point 13 in the experimental stage, the negative pressure value of each time point is measured, and in the subsequent production process, the control system 12 controls each parameter according to the negative pressure empirical value.
The pneumatic control cabinet 11 comprises a coke oven control cabinet and a field control cabinet; the pneumatic control cabinet 11 is used for centralizing and arranging devices such as a water seal cover opening and closing cylinder device 3, a valve disc adjusting cylinder device 7, an air source processing device for a pneumatic actuating mechanism of a three-way switching valve 8, an electromagnetic directional valve, a speed regulating valve and the like. Generally, a pneumatic control cabinet 11 is arranged in two holes, a fireproof heat-insulating layer is arranged in the pneumatic control cabinet 11, and heat-insulating waterproof nano composite ceramic paint is sprayed on the outer surface of the pneumatic control cabinet 11 in consideration of the possibility of short-time open fire baking on site.
The control system 12 is composed of a PLC cabinet, an operator station, an operation program, a control cable, a bridge frame and the like, and is used for transmitting and controlling data in real time with the coke oven operation management system.
The pressure regulation of the single coking chamber can realize the real-time operation of the ascending pipe of the coke oven according to the operation management system or the coal charging and pushing plan of the coke oven. In the process of coal charging of the coking chamber, according to a signal sent by a coke oven vehicle control system, a control system 12 of the pressure of the single-hole coking chamber starts a control program, a water seal cover opening and closing cylinder device 3 is made to close a water seal cover 2, a valve disc adjusting cylinder device 7 adjusts a water seal valve 6 to be in a full-open state, a three-way switching valve 8 is switched to be communicated with high-pressure ammonia water, and the high-pressure ammonia water is introduced through a high-pressure ammonia water pipe 9.
After coal charging is finished, the three-way switching valve 8 is switched to the low-pressure ammonia water side to be communicated, the low-pressure ammonia water is communicated through the low-pressure ammonia water pipe 10 and enters a coking state, and the valve disc adjusting cylinder device 7 gradually and slowly closes the water seal valve 6 along with the change of a coking period in the coking process.
In the coke pushing process, the water seal cover opening and closing cylinder device 3 opens the water seal cover 2, and the valve disc adjusting cylinder device 7 adjusts the water seal valve 6 to be in a fully closed state.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (9)
1. A single carbonization chamber pressure adjusting device is characterized by comprising an ascending pipe (1), a water seal cover opening and closing cylinder device (3), a gas collecting pipe (5), a valve disc adjusting cylinder device (7), a gas control cabinet (11) and a control system (12);
the top of the ascending pipe (1) is provided with a water sealing cover (2), and the water sealing cover (2) is controlled to be opened and closed by the water sealing cover opening and closing cylinder device (3);
the water seal cover opening and closing cylinder device (3) comprises a water seal cover cylinder (35) and a guide rod (32) parallel to the length direction of the water seal cover cylinder (35);
a piston rod of the water seal cover cylinder (35) is connected with an installation plate (37), the installation plate (37) is connected with the water seal cover (2), one side of the water seal cover cylinder (35) is provided with an upper-corner displacement travel switch (31) and a lower-corner displacement travel switch (34) which correspond to each other up and down, the upper end of the guide rod (32) is fixedly connected with the installation plate (37), and the lower end of the guide rod (32) is fixedly provided with a stop block (33) positioned between the upper-corner displacement travel switch (31) and the lower-corner displacement travel switch (34);
the ascending pipe (1) is communicated with the gas collecting pipe (5) through a bridge pipe (4), a water seal valve (6) is arranged at the position where the gas collecting pipe (5) is connected with the bridge pipe (4), and the opening of the water seal valve (6) is controlled by the valve disc adjusting cylinder device (7);
the valve disc adjusting cylinder device (7) comprises a valve disc cylinder (71), a valve positioner (78) and an angular displacement stroke feedback device (79) of the valve positioner; the tail end of a piston rod of the valve disc cylinder (71) is connected with a cylinder fork head (75), a swing arm is connected to the cylinder fork head (75), the swing arm is connected with a valve disc of the water seal valve (6), and an air inlet channel and an air outlet channel of the valve disc cylinder (71) are respectively connected to a valve positioner (78) in a sealing mode;
a piston rod of the valve disc cylinder (71) is fixedly provided with a feedback plate support (74), a feedback plate (72) is fixedly arranged on the feedback plate support (74) along the length direction of the valve disc cylinder (71), and one side of the feedback plate (72) is an inclined plane;
the angular displacement stroke feedback device (79) of the valve positioner is arranged on one side of the inclined surface of the feedback plate (72) and fixedly mounted on a shell of the valve disc cylinder (71), a feedback rod is arranged on the angular displacement stroke feedback device (79) of the valve positioner, a cam is arranged at the tail end of the feedback rod, and the cam is in contact with the inclined surface of the feedback plate (72).
2. A single carbonization chamber pressure regulating device as defined in claim 1, wherein the bridge pipe (4) is provided with a three-way switching valve (8) electrically connected to the control system (12), the outlet of the three-way switching valve (8) is communicated with the bridge pipe (4), the first inlet of the three-way switching valve (8) is communicated with a high-pressure ammonia water pipe (9), and the second inlet of the three-way switching valve (8) is communicated with a low-pressure ammonia water pipe (10).
3. A single carbonization chamber pressure regulating device according to claim 2, characterized in that the rising pipe (1) is provided with a pressure measuring point (13).
4. A single carbonization chamber pressure regulating device as defined in claim 1, wherein an ear seat (36) is fixedly mounted on the top of the casing of the water-sealed cylinder (35), the upper angular displacement travel switch (31) is mounted on the ear seat (36), and the lower angular displacement travel switch (34) is mounted on the bottom of the casing of the water-sealed cylinder (35).
5. A single carbonization chamber pressure regulating device as defined in claim 4, wherein the guide rod (32) is in sliding engagement with the ear seat (36).
6. A single carbonization chamber pressure regulating device as defined in claim 1, wherein the distance between the upper angular displacement stroke switch (31) and the lower angular displacement stroke switch (34) is equal to the stroke length of the piston rod of the water-sealed cylinder (35).
7. A single carbonization chamber pressure adjustment device as defined in claim 1, wherein the feedback plate (72) has a right trapezoid shape with a width that tapers from near the end of the piston rod to the other end.
8. A single carbonization chamber pressure regulating device as defined in claim 1, wherein the valve disc cylinder (71) is fixedly provided with a guide plate support (77), the guide plate support (77) is fixedly provided with a guide plate (76), and the guide plate (76) is provided with a limiting hole for the feedback plate (72) to pass through.
9. A single carbonization chamber pressure regulating device as defined in claim 8, wherein the guide plate support (77) is fixedly provided with a positioner bracket (73), and the valve positioner (78) is mounted on the positioner bracket (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120965023.1U CN215828683U (en) | 2021-05-08 | 2021-05-08 | Single carbomorphism room pressure regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120965023.1U CN215828683U (en) | 2021-05-08 | 2021-05-08 | Single carbomorphism room pressure regulating device |
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| Publication Number | Publication Date |
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| CN215828683U true CN215828683U (en) | 2022-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120965023.1U Active CN215828683U (en) | 2021-05-08 | 2021-05-08 | Single carbomorphism room pressure regulating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115772414A (en) * | 2022-12-21 | 2023-03-10 | 中冶焦耐自动化有限公司 | System and method for realizing smokeless coal charging of coke oven and pressure stabilization of carbonization chamber |
-
2021
- 2021-05-08 CN CN202120965023.1U patent/CN215828683U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115772414A (en) * | 2022-12-21 | 2023-03-10 | 中冶焦耐自动化有限公司 | System and method for realizing smokeless coal charging of coke oven and pressure stabilization of carbonization chamber |
| CN115772414B (en) * | 2022-12-21 | 2024-01-26 | 中冶焦耐自动化有限公司 | System and method for realizing smokeless coal charging of coke oven and pressure stabilization of carbonization chamber |
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