Smoke guide control valve and fixed smoke guide system for large coke oven
阅读说明：本技术 一种大型焦炉用导烟控制阀及固定导烟系统 (Smoke guide control valve and fixed smoke guide system for large coke oven ) 是由 李天祥 于 2020-06-04 设计创作，主要内容包括：本发明涉及煤焦化技术领域,尤其是公开了一种大型焦炉用导烟控制阀及固定导烟系统,其中导烟控制阀包括阀体,所述阀体内部靠近其中一个端口设置有阀盘,所述阀盘背面通过销轴固定有连接杠杆,所述连接杠杆端部嵌套在转轴上,所述转轴通过轴承固定在所述阀体上,所述阀体其中一端传动连接有执行器。有益效果在于：在焦炉导烟过程中取消了导烟车,利用安装有导烟控制阀的固定导烟系统进行导烟,该系统运行成本低,维护量低,自动化程度高,可以真正实现无烟装煤,减少污染,保护环境。(The invention relates to the technical field of coal coking, and particularly discloses a smoke guide control valve for a large coke oven and a fixed smoke guide system. Has the advantages that: the smoke guide vehicle is omitted in the smoke guide process of the coke oven, and smoke is guided by using the fixed smoke guide system provided with the smoke guide control valve.)
1. The utility model provides a large-scale coke oven is with leading cigarette control valve which characterized in that: including valve body (31), valve body (31) inside is close to one of them port and is provided with valve disc (32), valve disc (32) back is fixed with through the round pin axle and connects lever (33), it nests on pivot (34) to connect lever (33) tip, pivot (34) are fixed through the bearing on valve body (31), valve body (31) wherein one end transmission is connected with executor (35).
2. The smoke guide control valve for the large coke oven according to claim 1, wherein: and a sealing ring is arranged at the contact position of the rotating shaft (34) and the valve body (31).
3. A fixed smoke guide system of a large coke oven is characterized in that: the device comprises the smoke guide control valve (3) of any one of claims 1-2, a water seal pipe (19) is fixed above one end of the smoke guide control valve (3) provided with the valve disc (32) through a bolt, a smoke guide bridge pipe (2) is fixed on the water seal pipe (19) through a bolt, the smoke guide bridge pipe (2) is communicated with the carbonization chamber (1) through a pipeline, the other end of the smoke guide control valve (3) is connected with a coke oven smoke guide main pipe (4) through a pipeline, the coke oven smoke guide main pipe (4) is connected to the lower end of a spray tower (14) through a smoke guide ascending pipe (5), a smoke guide pipe (13) is fixed at the upper end of the spray tower (14) through a bolt, a smoke guide fan (12) is connected to the end part of the smoke guide pipe (13), a pressure stabilizing tank (10) is connected to the smoke guide fan (12) through a pipeline, and the pressure stabilizing tank (10) is connected with the primary cooler (11), lead the welding on cigarette bridge pipe (2) lateral wall and carry and be in charge of (18), the aqueous ammonia is carried and is in charge of (18) end connection has aqueous ammonia transport house steward (16), the aqueous ammonia is carried and is in charge of (18) and install ammonia control valve (17) through the ferrule, lead cigarette control valve (3) lead cigarette fan (12) ammonia control valve (17) electricity is connected with DCS control system (21).
4. The large coke oven fixing smoke guide system of claim 3, wherein: an ammonia water circulating pump (15) is installed on the ammonia water conveying main pipe (16) through a pipe hoop, and the ammonia water circulating pump (15) is electrically connected with the DCS control system (21).
5. The large coke oven fixing smoke guide system of claim 3, wherein: and an ammonia water spray head (22) is installed at one end of the ammonia water conveying branch pipe (18) extending into the smoke guide bridge pipe (2) through threads.
6. The large coke oven fixing smoke guide system of claim 3, wherein: inlay on water seal pipe (19) lateral wall and have liquid level transmitter (20), liquid level transmitter (20) with DCS control system (21) electricity is connected.
7. The large coke oven fixing smoke guide system of claim 3, wherein: the smoke guide fans (12) are two in number, the two smoke guide fans (12) are connected on the smoke guide pipe (13) in parallel, and the two smoke guide fans (12) are controlled independently.
8. The large coke oven fixing smoke guide system of claim 3, wherein: spray tower (14) bottom has tertiary sedimentation tank (9) through the pipe connection, there is circulating clean water basin (8) through the pipe connection on the lateral wall on tertiary sedimentation tank (9), there is circulating water pipe (6) bottom circulating clean water basin (8) through the pipe connection, circulating water pipe (6) through clear water conveyer pipe (7) with the shower nozzle at top links together in spray tower (14).
9. The large coke oven fixing smoke guide system of claim 8, wherein: the circulating water pipes (6) are two, the circulating water pipes (6) are connected in parallel on the clean water conveying pipe (7) and the pipeline between the circulating clean water tanks (8), the circulating water pipes (6) are electrically connected with the DCS control system (21), and the circulating water pipes (6) are controlled independently.
10. The large coke oven fixing smoke guide system of claim 3, wherein: and a pressure measuring instrument (23) is installed on the carbonization chamber (1), and the pressure measuring instrument (23) is electrically connected with the DCS control system (21).
Technical Field
The invention relates to the technical field of coal coking, in particular to a smoke guide control valve and a fixed smoke guide system for a large coke oven.
Background
In recent years, the coking industry of China is rapidly developed, and the coke oven is developed in large scale and automation. The degree of automation of the coke oven is also higher. Meanwhile, the environmental protection puts higher requirements on the modern coke oven.
The smoke guide vehicle on the coke oven is an indispensable coke oven mechanical device. The smoke guide vehicle solves certain environmental protection problems in production. There are still some essential defects. Such as requiring personnel to operate. Meanwhile, faults occur in the running process of the vehicle. And the smoke guide has larger influence on other carbonization chambers and gas collecting pipes in different degrees and has higher operation cost. This is extremely disadvantageous for the production operation of the coke oven.
Disclosure of Invention
The invention provides a smoke guide control valve and a fixed smoke guide system for a large coke oven to solve the problems.
The technical scheme of the invention is realized as follows:
the utility model provides a large-scale coke oven is with leading cigarette control valve, includes the valve body, the valve body is inside to be close to one of them port and is provided with the valve disc, the valve disc back is fixed with the connection lever through the round pin axle, connect the nested pivot of lever end, the pivot is fixed through the bearing on the valve body, valve body wherein one end transmission is connected with the executor.
Furthermore, a sealing ring is arranged at the contact position of the rotating shaft and the valve body.
A fixed smoke guide system of a large coke oven comprises a smoke guide control valve, wherein a water seal pipe is fixed above one end of the smoke guide control valve provided with a valve disc through a bolt, a smoke guide bridge pipe is fixed on the water seal pipe through a bolt, the smoke guide bridge pipe is communicated with a carbonization chamber through a pipeline, the other end of the smoke guide control valve is connected with a coke oven smoke guide main pipe through a pipeline, the coke oven smoke guide main pipe is connected to the lower end of a spray tower through a smoke guide ascending pipe, the upper end of the spray tower is fixed with a smoke guide pipe through a bolt, the end part of the smoke guide pipe is connected with a smoke guide fan, the smoke guide fan is connected with a pressure stabilizing tank through a pipeline, the pressure stabilizing tank is connected with a primary cooler, ammonia water conveying branch pipes are welded on the side wall of the smoke guide bridge pipe, the end parts of the ammonia water conveying branch pipes are connected with a main pipe, and ammonia water control valves are arranged on, the smoke guide control valve, the smoke guide fan and the ammonia water control valve are electrically connected with a DCS control system.
Further, an ammonia water circulating pump is installed on the ammonia water conveying main pipe through a pipe hoop, and the ammonia water circulating pump is electrically connected with the DCS control system.
Furthermore, an ammonia water nozzle is installed at one end, extending into the smoke guide bridge pipe, of the ammonia water conveying branch pipe through threads.
Furthermore, inlay on the water seal pipe lateral wall and have liquid level changer, liquid level changer with DCS control system electricity is connected.
Furthermore, the number of the smoke guide fans is two, the two smoke guide fans are connected on the smoke guide pipe in parallel, and the two smoke guide fans are controlled independently.
Further, there is tertiary sedimentation tank bottom through the pipe connection, there is the circulation clean water basin through the pipe connection on the lateral wall on the tertiary sedimentation tank, there is circulating pipe bottom through the pipe connection in the circulation clean water basin, circulating pipe pass through the clear water conveyer pipe with the shower nozzle at top links together in the spray column.
Furthermore, circulating water pipe has two, two circulating water pipe connects in parallel on the clear water conveyer pipe with the pipeline between the circulating clear water pond, circulating water pipe with DCS control system electricity is connected, two circulating water pipe is the independent control.
Furthermore, a pressure measuring instrument is installed on the carbonization chamber and is electrically connected with the DCS control system.
By adopting the technical scheme, the invention has the beneficial effects that: the smoke guide vehicle is omitted in the smoke guide process of the coke oven, and smoke is guided by using the fixed smoke guide system provided with the smoke guide control valve.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a first cross-sectional view of the smoke control valve of the present invention;
FIG. 2 is a second cross-sectional view of the smoke control valve of the present invention;
FIG. 3 is a schematic view of the fixed smoke guiding system of the present invention;
FIG. 4 is a schematic view of the smoke control valve installation of the present invention;
fig. 5 is a block diagram of the circuit configuration of the present invention.
The reference numerals are explained below:
1. a carbonization chamber; 2. a smoke guide bridge pipe; 3. a smoke guide control valve; 31. a valve body; 32. a valve disc; 33. a connecting lever; 34. a rotating shaft; 35. an actuator; 4. a main flue gas guide pipe of the coke oven; 5. a smoke guide ascending pipe; 6. a circulating water pipe; 7. a clear water delivery pipe; 8. circulating a clean water tank; 9. a third-stage sedimentation tank; 10. a surge tank; 11. a primary cooler; 12. a smoke guide fan; 13. a smoke guide pipe; 14. a spray tower; 15. an ammonia water circulating pump; 16. an ammonia water delivery main pipe; 17. an ammonia water control valve; 18. conveying ammonia water into branch pipes; 19. water sealing the pipe; 20. a liquid level transmitter; 21. a DCS control system; 22. an ammonia water spray head; 23. and a pressure measuring instrument.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-2, a smoke guide control valve for a large coke oven comprises a
In this embodiment, the contact department of
In the present embodiment, the actuator 35 is selected from any one of an electric actuator and a pneumatic actuator.
As shown in figures 3-5, a large-scale coke oven fixed smoke guiding system comprises a smoke guiding control valve 3, a water seal pipe 19 is fixed above one end of the smoke guiding control valve 3, which is provided with a valve disc 32, through a bolt, the water seal pipe 19 is fixed with a smoke guiding bridge pipe 2 through a bolt, the smoke guiding bridge pipe 2 is communicated with a carbonization chamber 1 through a pipeline, the other end of the smoke guiding control valve 3 is connected with a coke oven smoke guiding main pipe 4 through a pipeline, the internal pressure of the coke oven smoke guiding main pipe 4 is kept at about-1000 Pa when the carbonization chamber 1 is not charged with coal, so that smoke can be extracted by negative pressure after the smoke guiding control valve 3 is opened, the coke oven smoke guiding main pipe 4 is connected to the lower end of a spray tower 14 through a smoke guiding ascending pipe 5, the spray tower 14 sprays water to the smoke to remove dust particles in the smoke, the spray tower 14 treats the gas with 8000Nm3/H, the upper end of the spray tower 14 is fixed with a smoke guiding pipe 13 through a bolt, avoid steam to get into and lead inside the tobacco pipe 13, it has smoke guide fan 12 to lead the end connection of tobacco pipe 13, smoke guide fan 12 is frequency conversion roots blower, amount of wind 6000Nm3/H, total pressure 30KPa, motor power 75KW, smoke guide fan 12 has surge tank 10 through the pipe connection, be used for adjusting pressure, surge tank 10 is connected with primary cooler 11, it carries the branch pipe 18 to weld the aqueous ammonia on 2 lateral walls of smoke guide bridge, 18 end connections of aqueous ammonia transport branch pipe have aqueous ammonia transport house steward 16, be used for carrying the aqueous ammonia, ammonia control valve 17 is installed through the ferrule on the aqueous ammonia transport branch pipe 18, be used for controlling spraying of aqueous ammonia, smoke guide control valve 3, smoke guide fan 12, ammonia control valve 17 electricity is connected with DCS control system 21.
In this embodiment, install aqueous
In this embodiment, the ammonia water is carried and is divided one end that 18 stretches into smoke
In this embodiment, inlay on the 19 lateral walls of water seal pipe and have
In this embodiment, there are two
In this embodiment, there are three-
In this embodiment, circulating
In this embodiment, the
The working principle of the invention is as follows: when the device is used, coal charging is started after one carbonization chamber 1 is pushed to coke, the coal charging car sends a coal charging signal, the DCS control system 21 receives the signal and controls the smoke guide control valve 3 of the carbonization chamber 1 to be opened, meanwhile, the ammonia water control valve 17 is opened to spray, remove dust and cool ammonia water, at the moment, the pressure measuring instrument 23 detects the pressure of the carbonization chamber 1 and requires to be controlled to be about 0Pa, coal charging smoke dust of the carbonization chamber 1 rapidly enters the coke oven smoke guide header pipe 4 through the smoke guide bridge pipe 2 and the smoke guide control valve 3, when the pressure of the carbonization chamber 1 is increased due to large increase of smoke dust, the DCS control system 21 controls the smoke guide fan 12 to rapidly increase the speed according to the pressure increase degree, so that the pressure of the carbonization chamber 1 is maintained within a specified value to finish smoke guide of the carbonization chamber 1, the DCS control system 21 controls the smoke guide control valve 3 to be automatically closed after coal charging is finished, the ammonia water control valve 17 is still opened and continues to, the method aims to establish a certain liquid level to achieve the water seal effect after a smoke guide control valve 3 is closed, when a liquid level transmitter 20 arranged on a water seal pipe 19 for measuring the liquid level detects that the liquid level reaches a specified value, a signal is sent to a DCS control system 21, the DCS control system 21 sends a signal to control an ammonia control valve 17 to be closed, when a coke oven is not in coal charging operation, the liquid level in the water seal pipe 19 must ensure the specified liquid level height so as to ensure that a carbonization chamber 1 is effectively isolated from a coke oven smoke guide gas main pipe 4, if the liquid level in the water seal pipe 19 is lower than the specified value in the period, the ammonia control valve 17 is automatically opened so as to ensure the liquid level in the water seal pipe 19, smoke entering the coke oven smoke guide gas main pipe 4 passes through the interior of a spray tower 14 under the suction force generated by a smoke guide pipe 13, at the moment, a circulating water pipe 6 is started to pump clean water into the spray tower 14 to, the waste water that produces when purifying flows into and subsides in tertiary sedimentation tank 9 and filters, and the water reuse of being convenient for, and the smoke and dust after the purification gets into primary cooler 11 inside and cools down, carries appointed system after the cooling.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
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