CN214571710U

CN214571710U - Coke oven carbonization chamber pressure stabilization system

Info

Publication number: CN214571710U
Application number: CN202023203218.7U
Authority: CN
Inventors: 王明登; 郑亚杰; 王善民; 王琳琳; 杨俊峰
Original assignee: Acre Coking and Refractory Engineering Consulting Corp MCC
Current assignee: Acre Coking and Refractory Engineering Consulting Corp MCC
Priority date: 2020-12-27
Filing date: 2020-12-27
Publication date: 2021-11-02
Anticipated expiration: 2030-12-27

Abstract

The utility model relates to a coking technical field especially relates to a coke oven carbonization chamber pressure stabilization system. Comprises a bridge pipe, a flow guide device, an ammonia water spraying device, a water seal valve and a pressure measuring device; the bridge pipe is connected with the gas collecting pipe, and the water seal valve is arranged at the joint of the bridge pipe and the gas collecting pipe; the flow guiding device is arranged on the bridge pipe and comprises a motor, a flow guiding impeller and a shaft lever, one end of the shaft lever is connected with the motor, the other end of the shaft lever is connected with the flow guiding impeller, and the flow guiding impeller is positioned in the bridge pipe; the ammonia water spraying device is installed on the bridge pipe and communicated with the interior of the bridge pipe, and the probe of the pressure measuring device extends into the bridge pipe. The pressure of each carbonization chamber is controlled by combining a flow guide device and a water seal valve, the flow speed of the raw coke oven gas in the bridge pipe is changed by adjusting the rotating speed of a flow guide impeller extending into the bridge pipe, and the raw coke oven gas is guided into a gas collecting pipe, so that the pressure of each carbonization chamber is stabilized.

Description

Coke oven carbonization chamber pressure stabilization system

Technical Field

The utility model relates to a coking technical field especially relates to a coke oven carbonization chamber pressure stabilization system.

Background

One coke oven is composed of a plurality of coking chambers, and in a coking period, coal materials are in different stages of a coking process, and the generation amount of coal gas can change along with the change of coking time. For a coke oven, in the coking process, different coking chambers of the coke oven are in different coking states, and the pressure of raw coke gas in the coking chambers is different, which is mainly reflected by that: in the initial stages of coal charging and coking, a great amount of raw gas is generated in the coking chamber, and if the raw gas cannot be quickly introduced into the gas collecting pipe, the pressure of the raw gas in the coking chamber is high, the gas easily escapes from each leakage port, the environment is seriously affected, and the gas resource is wasted; in the coking end, the amount of raw gas in the coking chamber is reduced, negative pressure is easily generated at the bottom of the coking chamber under the action of thermal buoyancy, so that external air is sucked into the coking chamber from an unclosed part of the furnace body, the burning loss of coke is caused, the quality of the coke is influenced, and the furnace body is damaged.

In recent years, some domestic and foreign coke ovens have single-hole coking chamber pressure regulating devices arranged in raw gas discharge systems of each coking chamber to stabilize the pressure of each coking chamber, and commonly used regulating systems include a German PROven system, an Italy SOPRECO system, a domestic CPS system and an OPR system. The pressure adjusting device for the coking chamber is generally used for changing the flow section of the raw coke oven gas passing through the bridge pipe, adjusting the flow rate of the raw coke oven gas and further adjusting the pressure in the coking chamber. Practice shows that the system can improve the problem of pressure fluctuation of the carbonization chamber to a certain extent, but has complex structure and high failure rate; difficulty in maintenance and repair and the like.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art condition, the utility model provides a coke oven carbomorphism room pressure stable system adopts the form that guiding device and water seal valve combine to control carbomorphism room pressure, stretches into the water conservancy diversion impeller rotational speed in the bridge pipe through the regulation, changes the circulation speed of crude gas in the bridge pipe, with the leading-in discharge tube of crude gas to stabilize each carbomorphism room pressure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a pressure stabilizing system for a coke oven carbonization chamber comprises a bridge pipe, a flow guide device, an ammonia water spraying device, a water seal valve and a pressure measuring device; the bridge pipe is connected with the gas collecting pipe, and the water seal valve is arranged at the joint of the bridge pipe and the gas collecting pipe; the flow guiding device is arranged on the bridge pipe and comprises a motor, a flow guiding impeller and a shaft lever, one end of the shaft lever is connected with the motor, the other end of the shaft lever is connected with the flow guiding impeller, and the flow guiding impeller is positioned in the bridge pipe; the ammonia water spraying device is installed on the bridge pipe and communicated with the interior of the bridge pipe, and the probe of the pressure measuring device extends into the bridge pipe.

The bearing sleeve seat is fixedly connected to the pipe wall of the bridge pipe, a bearing is arranged in the bearing sleeve seat, and the bearing is installed on a shaft lever of the flow guide device.

The impeller and the shaft lever are both made of high-temperature-resistant, corrosion-resistant and wear-resistant materials.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a carbomorphism room pressure is controlled to the form that guiding device and water seal valve combine, stretches into the water conservancy diversion impeller rotational speed in the bridge pipe through the regulation, changes the circulation speed of crude gas in the bridge pipe, with the leading-in discharge tube of crude gas to stabilize each carbomorphism room pressure.

1) The utility model has simple structure, does not need complex mechanical structure and is convenient for equipment maintenance;

2) the utility model arranges the water seal valve at the joint of the bridge pipe and the gas collecting pipe, which can realize the 100 percent separation of the crude gas;

3) the utility model has higher adjusting sensitivity, linearly adjusts the flow velocity of the raw coke oven gas by controlling the rotating speed of the motor of the flow guiding device, further changes the pressure of the carbonization chamber and makes the adjustment more effective;

4) the utility model discloses easy debugging, only guiding device motor speed can, traditional carbomorphism room pressure regulating device generally relies on the mechanical cooperation of foundry goods to adjust, because the machining error is big, corresponding actuating mechanism precision is low, often needs to spend a large amount of time debugging, and produces the deviation easily after debugging successfully repeatedly.

Drawings

FIG. 1 is a front sectional view of the structure of the present invention;

FIG. 2 is a schematic view of the structure and installation of the flow guiding device of the present invention;

fig. 3 is a schematic view of the structure of the flow guiding device of the present invention.

In the figure: 1-bridge pipe 2-guiding device 3-ammonia water spraying device 4-water seal valve 5-pressure measuring device 6-bearing sleeve seat 7-gas collecting pipe 8-control system 21-motor 22-guiding impeller 23-shaft lever

Detailed Description

The core of the present invention is to provide a pressure stabilization system for a coking chamber of a coke oven, which will be described in detail below with reference to the accompanying drawings and specific embodiments in order to enable those skilled in the art to better understand the present invention.

As shown in figures 1-3, a pressure stabilizing system for a coking chamber of a coke oven comprises a bridge pipe 1, a flow guide device 2, an ammonia water spraying device 3, a water seal valve 4, a pressure measuring device 5 and a bearing sleeve seat 6.

The bridge pipe 1 is connected with the gas collecting pipe 7, the water seal valve 4 is arranged at the joint of the bridge pipe 1 and the gas collecting pipe 7, and the tail end of the bridge pipe 1 is inserted into a valve disc of the water seal valve 5.

As shown in fig. 2, the diversion device 2 includes a motor 21, a diversion impeller 22 and a shaft 23, the motor 21 is connected to one end of the shaft 23, the other end of the shaft 23 is connected to the diversion impeller 22, and the motor 21 drives the shaft 23 and the diversion impeller 22 to rotate. The motor 21 is electrically connected with the control system 8 of the coke oven gas collecting system. The guide vane wheel 22 and the shaft lever 23 are made of high temperature resistant and corrosion resistant materials.

As shown in fig. 1 to 3, the bearing sleeve seat 6 is a metal sleeve seat with a built-in bearing, and is installed and fixed on a flange hole of the pipe wall of the bridge pipe 1, and the built-in bearing is installed on the shaft rod 23 of the flow guiding device and works in cooperation with the shaft rod 23 to play a role in fixing the shaft rod 23 and sealing the pressure in the bridge pipe 1.

Ammonia water spray set 3 is prior art, and ammonia water spray set 3 installs on bridge 1 to rather than inside intercommunication, spray the ammonia water in to bridge 1. The bridge pipe 1 or the ascending pipe is provided with a pressure measuring device 5, the pressure measuring device 5 is in the prior art, the pressure measuring device 5 can adopt a pressure sensor or a pressure transmitter or a pressure measuring pipe, and a probe of the pressure measuring device extends into the bridge pipe 1 or the ascending pipe.

The pressure measuring device 5 is electrically connected with a control system 8 of the coke oven gas collecting system, and the control system 8 of the coke oven gas collecting system adjusts the rotating speed of the guide vane wheel 22 in a linkage manner according to the pressure feedback of the measuring device 5; or the parameters are set in advance according to the coking cycle and time to control the flow guiding device 2.

The utility model discloses a theory of operation and working process specifically include following step:

1) in the initial stages of coal charging and coking, the water seal valve 4 is in a fully open state, a large amount of raw gas is generated in the coking chamber, when the control system 8 receives a coal charging signal, the motor 21 of the diversion device 2 is started, the diversion impeller 22 rotates to drive gas in the bridge pipe 1 to circulate, so that the raw gas quickly enters the gas collecting pipe 7 through the bridge pipe 1 to be guided out, and the pressure in the coking chamber is reduced;

2) along with the increase of the coking time, the crude gas amount in the coking chamber is gradually reduced, the rotating speed of the motor 21 is reduced, the flow velocity of the crude gas is slowed down, and the pressure of the coking chamber is kept stable at 5-200 Pa;

3) at the end of coking, the flow guide device 2 does not guide the gas any more, slowly rotates to prevent tar from adhering, the water seal valve 4 is closed and filled with ammonia water to cut off the raw gas and prevent the carbonization chamber from generating negative pressure or the raw gas from flowing backwards;

4) in the process, the ammonia water spraying device 3 works to reduce the temperature of the raw coke oven gas in the bridge pipe 1 and prevent the equipment from coking.

The utility model discloses the structure is retrencied, need not complicated mechanical structure, the equipment maintenance of being convenient for. The utility model discloses set up water seal valve 4 in the junction of bridge 1 and gas collecting pipe 7, can realize the wall of crude gas 100%. The utility model discloses adjust sensitivity higher, through control guiding device motor 21 rotational speed linear adjustment raw coke oven gas circulation speed, and then change carbomorphism room pressure, make the regulation more effective. The utility model discloses easy debugging, only guiding device motor 21 rotational speed can, traditional carbomorphism room pressure regulating device generally relies on the mechanical cooperation of foundry goods to adjust, because the machining error is big, corresponding actuating mechanism precision is low, often need spend a large amount of time debugging, and produce the deviation after debugging successfully easily repeatedly.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A pressure stabilizing system for a coking chamber of a coke oven is characterized by comprising a bridge pipe, a flow guide device, an ammonia water spraying device, a water seal valve and a pressure measuring device; the bridge pipe is connected with the gas collecting pipe, and the water seal valve is arranged at the joint of the bridge pipe and the gas collecting pipe; the flow guiding device is arranged on the bridge pipe and comprises a motor, a flow guiding impeller and a shaft lever, one end of the shaft lever is connected with the motor, the other end of the shaft lever is connected with the flow guiding impeller, and the flow guiding impeller is positioned in the bridge pipe; the ammonia water spraying device is installed on the bridge pipe and communicated with the interior of the bridge pipe, and the probe of the pressure measuring device extends into the bridge pipe.

2. The pressure stabilization system for the coking chamber of the coke oven as defined in claim 1, further comprising a bearing sleeve seat, wherein the bearing sleeve seat is fixedly connected to the wall of the bridge pipe, a bearing is arranged in the bearing sleeve seat, and the bearing is mounted on a shaft rod of the flow guide device.

3. The pressure stabilization system for the coking chamber of the coke oven as defined in claim 1, wherein the impeller and the shaft rod are made of high temperature resistant, corrosion resistant and wear resistant materials.