Pressure monotonous equipment for coke oven carbonization chamber

Abstract

The utility model belongs to the technical field of coal coking equipment, and particularly relates to coke oven carbonization chamber pressure monotonizing equipment which comprises an ascending pipe and a gas collecting pipe, an ascending pipe bridge pipe is installed on the ascending pipe, a first inserting opening is formed in the bottom of the ascending pipe bridge pipe, and a second socket opening is formed in the top of the gas collecting pipe. The carbonization chamber pressure monotonous valve comprises a carbonization chamber pressure monotonous valve body, a carbonization chamber pressure monotonous valve inlet and a carbonization chamber pressure monotonous valve outlet; the first adapting pipe and the second adapting pipe are correspondingly arranged at the upper end part and the lower end part of the carbonization chamber pressure monotonous valve, so that the carbonization chamber pressure monotonous valve can adapt to the installation of carbonization chamber pressure monotonous valves with different connection interface types, the seamless butt joint with the original equipment is realized, and the problem that the connection interface of the carbonization chamber pressure monotonous valve is different in style and cannot be connected with the original equipment is effectively solved. And the technical problem is brought to the work of the pressure regulating equipment of the newly added coke oven carbonization chamber of the coke oven which is put into production without stopping production.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal coking equipment, and in particular relates to a pressure monotonic device for a coke oven carbonization chamber. Background Art

[0002] In the production of coke ovens, the pressure fluctuation of raw gas in a single carbonization chamber is easy to occur due to the different production status of each carbonization chamber. In the early stage of coal loading and coking, the amount of raw gas is large, and the pressure at the bottom of the carbonization chamber is too high, which will cause the raw gas to leak out of the coal loading hole, furnace wall, furnace door, furnace body and other places of the coke oven, causing atmospheric environmental pollution; in the late stage of coking, the amount of raw gas is small, and negative pressure is easily formed at the bottom of the carbonization chamber, and air is leaked into the carbonization chamber, causing coke burning and furnace body damage, and the quality of coke is reduced. Installing the monotonic valve in the pressure regulating system of the existing coke oven to achieve precise regulation of the pressure in the carbonization chamber of the existing coke oven is a very feasible method to solve the above-mentioned problem of raw gas pressure fluctuation in the carbonization chamber. Therefore, various effective carbonization chamber pressure monotonic valve products have also been born. Due to the different styles of the connection interfaces of these carbonization chamber pressure monotonic valves, it brings technical difficulties to the work of adding coke oven carbonization chamber pressure regulating equipment to the coke oven that has been put into production without stopping production. Utility Model Content

[0003] With regard to the prior art described in the background technology, due to the different styles of the connection interface of the monotonic valve, it brings technical difficulties to the work of adding a coke oven carbonization chamber pressure regulating equipment to the coke ovens that have been put into production without stopping the production. The utility model provides a coke oven carbonization chamber pressure monotonic equipment to solve the technical difficulties of adding a coke oven carbonization chamber pressure monotonic equipment to the coke ovens that have been put into production.

[0004] The utility model solves the above technical problems through the following technical solutions: a coke oven carbonization chamber pressure monotonic equipment is provided, including: a riser and a gas collecting pipe, a riser bridge pipe is installed on the riser, a first plug interface is provided at the bottom of the riser bridge pipe, and a second receiving interface is provided at the top of the gas collecting pipe; it also includes a carbonization chamber pressure monotonic valve, a first receiving pipe and a second receiving pipe, the carbonization chamber pressure monotonic valve includes a carbonization chamber pressure monotonic valve body, a carbonization chamber pressure monotonic valve inlet, and a carbonization chamber pressure monotonic valve outlet; the first receiving pipe includes a first receiving interface and a second receiving pipe which is an integral structure with the first receiving interface A joint part, the first receiving port is sealingly matched with the first plug port at the bottom of the riser bridge pipe, and the first joint part is fixedly connected to the inlet of the carbonization chamber pressure monotonic valve; the second receiving tube includes a second plug port and a second joint part which is an integral structure with the second plug port, the second plug port is sealingly matched with the second receiving port at the top of the gas collecting pipe, and the second joint part is fixedly connected to the outlet of the carbonization chamber pressure monotonic valve; the riser also includes a newly added riser pipe section, the length of the newly added riser pipe section is the same as the total length of the carbonization chamber pressure monotonic valve, the first receiving tube and the second receiving tube after the three are connected.

[0005] Furthermore, a flange is provided at the inlet of the carbonization chamber pressure monotonic valve, and the first joint part has the same flange structure as the flange provided at the inlet of the carbonization chamber pressure monotonic valve, and the first joint part is fixedly connected to the flange at the inlet of the carbonization chamber pressure monotonic valve by bolts.

[0006] Furthermore, a flange is provided at the outlet of the carbonization chamber pressure monotonic valve, and the second joint part has the same flange structure as the flange provided at the outlet of the carbonization chamber pressure monotonic valve, and the flange at the outlet of the carbonization chamber pressure monotonic valve is fixedly connected to the second joint part by bolts.

[0007] Furthermore, a sealing rubber plate is provided between the first joint portion and the flange at the inlet of the carbonization chamber pressure monotonic valve, and between the flange at the outlet of the carbonization chamber pressure monotonic valve and the second joint portion.

[0008] In one embodiment of the utility model, a socket structure is provided at the inlet of the carbonization chamber pressure monotonic valve, and a plug-in interface structure is provided at the outlet of the carbonization chamber pressure monotonic valve; the first joint portion of the first socket tube is a plug-in interface combination structure, and the plug-in interface combination structure of the first joint portion is matched and connected with the socket structure at the inlet of the carbonization chamber pressure monotonic valve; the second joint portion of the second socket tube is a socket combination structure, and the socket combination structure of the second joint portion is matched and sealed with the plug-in interface structure at the outlet of the carbonization chamber pressure monotonic valve.

[0009] Furthermore, the plug-in interface combination structure of the first joint part includes a first flange fixedly connected to the first socket, a second flange fixedly connected to the first flange, and a third plug-in interface fixedly connected to the second flange, and the third plug-in interface is matched and connected with the socket structure at the inlet of the carbonization chamber pressure monotonic valve.

[0010] Furthermore, the socket assembly structure of the second joint part includes a third flange fixedly connected to the second plug interface, a fourth flange fixedly connected to the third flange, and a third socket fixedly connected to the fourth flange, and the third socket is matched and connected to the plug interface structure at the outlet of the carbonization chamber pressure monotonic valve.

[0011] Furthermore, a pressure measuring point of the coke oven carbonization chamber is installed on a newly added riser pipe section.

[0012] Furthermore, a bracket for bearing the weight of the pressure monotonic valve of the carbonization chamber is erected on the steel column of the coke oven.

[0013] Beneficial Effects

[0014] 1. The corresponding first and second connecting pipes are arranged at the upper and lower ends of the carbonization chamber pressure monotonic valve, which enhances the interchangeability of the equipment connectors and can adapt to the installation of carbonization chamber pressure monotonic valves with different connection interface types, thus achieving seamless docking with the original equipment and effectively solving the technical difficulties caused by the different connection interface styles of the carbonization chamber pressure monotonic valve to the coke ovens that have been put into production without stopping production.

[0015] 2. In one embodiment of the utility model, when a socket structure is provided at the inlet of the carbonization chamber pressure monotonic valve and a plug-in interface structure is provided at the outlet of the carbonization chamber pressure monotonic valve, the first joint portion of the first socket pipe is a plug-in interface combination structure, and the plug-in interface combination structure of the first joint portion includes a first flange fixedly connected to the first socket, a second flange fixedly connected to the first flange, and a third plug-in interface fixedly connected to the second flange, and the third plug-in interface is matched and connected with the socket structure at the inlet of the carbonization chamber pressure monotonic valve; the second joint portion of the second socket pipe is a socket combination structure, and the socket combination structure of the second joint portion includes a third flange fixedly connected to the second plug-in interface, a fourth flange fixedly connected to the third flange, and a third socket fixedly connected to the fourth flange, and the third socket is matched and connected with the plug-in interface structure at the outlet of the carbonization chamber pressure monotonic valve. The combined structural design of the first connecting pipe and the second connecting pipe, on the one hand, improves the interchangeability of the joints of the equipment installation, and on the other hand, the interfaces of the riser bridge pipe, the gas collecting pipe, and the carbonization chamber pressure monotonic valve can be connected and installed with the corresponding interfaces of the first connecting pipe and the second connecting pipe respectively, and then the relevant flanges are connected with bolts, and the sealing plug joints are assembled respectively, and only the relevant flanges are fastened with bolts. Although it is also necessary to hoist the carbonization chamber pressure monotonic valve, the docking of flanges is much simpler than that of plug joints. The complicated docking of plug joints can be completed separately, and finally only the relatively simple work of flange docking is completed, which can ensure the quality of the plug joint sealing installation, improve construction efficiency and ensure construction safety.

[0016] 3. In the embodiment, in order to ensure that the weight of the carbonization chamber pressure monotonic valve does not affect the gas collecting pipe, a steel structure bracket is supported on the steel column of the coke oven, and the weight of the newly added components is fully borne on the coke oven steel column to ensure the safety of the gas collecting pipe.

[0017] 4. In the embodiment, the pressure measuring point of the coke oven carbonization chamber is installed on the newly added rising pipe section, and there is no need to drill holes in the original coke oven equipment, which is convenient for construction.

[0018] 5. The construction process does not stop production and operates with gas, so the construction process is safe and controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0020] Figure 2 This is a schematic diagram of the appearance structure of the carbonization chamber pressure monotonic valve of Example 1 of the utility model;

[0021] Figure 3 This is a schematic diagram of the first receiving tube structure of Example 1 of the utility model;

[0022] Figure 4This is a schematic diagram of the second receiving tube structure of Example 1 of the utility model;

[0023] Figure 5 This is a schematic diagram of the overall structure of Embodiment 2 of the present utility model;

[0024] Figure 6 This is a schematic diagram of the appearance structure of the carbonization chamber pressure monotonic valve of Example 2 of the utility model;

[0025] Figure 7 This is a schematic diagram of the first receiving pipe structure of Example 2 of the utility model;

[0026] Figure 8 This is a schematic diagram of the second receiving tube structure of Example 2 of the utility model;

[0027] In the figure: 1. second socket, 2. second socket pipe, 20. second joint, 200. third flange, 201. fourth flange, 202. third socket, 21. second plug interface, 3. carbonization chamber pressure monotonic valve, 30. carbonization chamber pressure monotonic valve body, 31. carbonization chamber pressure monotonic valve inlet, 32. carbonization chamber pressure monotonic valve outlet, 4. first socket, 40. first joint, 400. first flange, 401. second flange, 402. third plug interface, 41. first socket, 5. first plug interface, 6. riser bridge pipe, 7. newly added riser section, 8. gas collecting pipe, 9. riser. DETAILED DESCRIPTION

[0028] The features and principles of the present invention are described in detail below in conjunction with the accompanying drawings. The embodiments given are only used to explain the present invention and are not intended to limit the protection scope of the present invention.

[0029] Example 1, please check Figures 1 to 4A coke oven carbonization chamber pressure monotonic equipment, comprising: a riser 9 and a gas collecting pipe 8, a riser bridge pipe 6 is installed on the riser 9, a first plug interface 5 is provided at the bottom of the riser bridge pipe 6, and a second socket 1 is provided at the top of the gas collecting pipe 8; it also comprises a carbonization chamber pressure monotonic valve 3, a first socket 4 and a second socket 2, the carbonization chamber pressure monotonic valve 3 comprises a carbonization chamber pressure monotonic valve body 3, a carbonization chamber pressure monotonic valve inlet 31, and a carbonization chamber pressure monotonic valve outlet 32; the first socket 4 comprises a first socket 41 and a first joint part 40 which is an integral structure with the first socket 41, the first socket 41 and the second socket 2 are connected to the ... the first socket 41 and the second socket 2 are connected to the carbonization chamber pressure monotonic valve body 3, the first socket 41 and the second socket 2 are connected to the carbonization chamber pressure monotonic valve body 3, the first socket 41 and the second socket 2 are connected to the carbonization chamber pressure monotonic valve body 3, the first socket 41 and the second socket 2 are connected to the carbonization chamber pressure monotonic valve body 3, the first socket 41 and the second socket 2 are connected to the carbonization chamber pressure monotonic valve body 3, the first socket 41 and the second socket 2 are connected to the carbonization chamber pressure monotonic valve body 3, the first socket 41 and the second socket 2 are connected to the carbonization chamber pressure monotonic valve body The first plug interface 5 at the bottom of the riser bridge pipe 6 is sealingly connected, and the first joint part 40 is fixedly connected to the inlet 31 of the carbonization chamber pressure monotonic valve; the second connecting pipe 2 includes a second plug interface 21 and a second joint part 20 which is an integral structure with the second plug interface 21, and the second plug interface 21 is sealingly connected to the second connecting interface 1 at the top of the gas collecting pipe 8, and the second joint part 20 is fixedly connected to the outlet 32 ​​of the carbonization chamber pressure monotonic valve; the riser 9 also includes a newly added riser pipe section 7, and the length of the newly added riser pipe section 7 is the same as the total length of the carbonization chamber pressure monotonic valve 3, the first connecting pipe 4 and the second connecting pipe 2 after being connected.

[0030] A flange is provided at the inlet 31 of the carbonization chamber pressure monotonic valve. The first joint part 40 has the same flange structure as the flange provided at the inlet 31 of the carbonization chamber pressure monotonic valve. The first joint part 40 is fixedly connected to the flange at the inlet 31 of the carbonization chamber pressure monotonic valve by bolts.

[0031] A flange is provided at the outlet 32 ​​of the carbonization chamber pressure monotonic valve. The second joint part 20 has the same flange structure as the flange provided at the outlet 32 ​​of the carbonization chamber pressure monotonic valve. The flange at the outlet 32 ​​of the carbonization chamber pressure monotonic valve is fixedly connected to the second joint part 20 by bolts.

[0032] Sealing rubber plates (not shown in the figure) are arranged between the first joint part 40 and the flange at the inlet 31 of the carbonization chamber pressure monotonic valve, and between the flange at the outlet 32 ​​of the carbonization chamber pressure monotonic valve and the second joint part 20.

[0033] Example 2, please check Figures 5 to 8 The difference between Example 2 and Example 1 is that a socket structure is provided at the inlet 31 of the carbonization chamber pressure monotonic valve, and a plug-in interface structure is provided at the outlet 32 ​​of the carbonization chamber pressure monotonic valve; the first joint portion 40 of the first socket tube 4 is a plug-in interface combination structure, and the plug-in interface combination structure of the first joint portion 40 is matched and connected with the socket structure at the inlet 31 of the carbonization chamber pressure monotonic valve; the second joint portion 20 of the second socket tube 2 is a socket combination structure, and the socket combination structure of the second joint portion 20 is matched and sealed with the plug-in interface structure at the outlet 32 ​​of the carbonization chamber pressure monotonic valve.

[0034] The plug-in interface combination structure of the first joint part 40 includes a first flange 400 fixedly connected to the first socket 41, a second flange 401 fixedly connected to the first flange 400, and a third plug-in interface 402 fixedly connected to the second flange 401. The third plug-in interface 402 is matched and connected with the socket structure at the inlet 31 of the carbonization chamber pressure monotonic valve.

[0035] The socket assembly structure of the second joint portion 20 includes a third flange 200 fixedly connected to the second plug-in interface 21, a fourth flange 201 fixedly connected to the third flange 200, and a third socket 202 fixedly connected to the fourth flange 201. The third socket 202 is matched and connected to the plug-in interface structure at the outlet 32 ​​of the carbonization chamber pressure monotonic valve.

[0036] In the original structure, the first plug interface 5 is plugged into the second socket 1 at the top of the gas collecting pipe 8. In the present utility model, under the condition of not stopping production, the carbonization chamber pressure monotonic valve 3 is added between the riser bridge pipe 6 and the gas collecting pipe 8, and the newly added riser pipe section 7 is added at the position and height position of the riser corresponding to the carbonization chamber pressure monotonic valve 3. That is, the position where the coke oven carbonization chamber pressure monotonic valve 3 is installed is the lower first plug interface 5 of the coke oven riser bridge pipe 6, the connection relationship between the first plug interface 5 and the second socket 1 is disconnected, and the carbonization chamber pressure monotonic valve 3, the first socket 4 and the second socket 2 are added at the disconnected position.

[0037] In order to ensure that the weight of the newly added carbonization chamber pressure monotonic valve 3 and the first receiving tube 4 and the second receiving tube 2 newly added above and below the carbonization chamber pressure monotonic valve 3 do not affect the gas collecting pipe 8, a steel structure bracket is erected on the steel column of the coke oven, and the weight of the newly added components is borne entirely by the coke oven steel column to ensure the safety of the gas collecting pipe 8. A bracket (not shown in the figure) for bearing the carbonization chamber pressure monotonic valve 3 is erected on the steel column of the coke oven.

[0038] The length of the newly added riser pipe section 7 corresponds to the total length of the carbonization chamber pressure monotonic valve 3, the first receiving pipe 4 and the second receiving pipe 2 after being connected. For example, the total length of the newly added carbonization chamber pressure monotonic valve 3, the first receiving pipe 4 and the second receiving pipe 2 after being connected is 1200 mm, and the newly added riser pipe section 7 is also required to have a corresponding length of 1200 mm. The pressure measurement point of the coke oven carbonization chamber corresponds to the newly added riser pipe section 7 (not shown in the figure).

[0039] The construction plan is as follows:

[0040] The construction of the pressure monotonic equipment in the carbonization chamber of the coke oven is carried out under the condition of normal production of the coke oven, so it must start working 4 hours before the coke oven is discharged when the amount of gas generated is relatively small. During the construction process, gas is always used during operation. It is required to open the smoke guide hole on the top of the coke oven close to the coke side, prepare 4 compressed air hoses, two for use and two for backup, insert the compressed air pipe into the riser, and pressurize the gas to the smoke guide hole on the top of the furnace close to the coke side for combustion. During the installation of the equipment, compressed air should always be used to pressurize the gas generated by the coke oven to the smoke guide hole on the top of the furnace close to the coke side for combustion to prevent the gas from escaping from the riser and burning the construction personnel. For a single riser, the main contents and steps of the transformation are as follows:

[0041] (1) Close the gas shut-off valve between the riser bridge pipe 6 and the gas collecting pipe 8 to cut off the connection between the riser and the gas collecting pipe 8;

[0042] (2) Remove the upper water pipe of the water seal cover of the riser and the water seal full flow out of the water tank;

[0043] (3) Cut off the circulating ammonia water pipeline at the riser bridge pipe 6;

[0044] (4) Lifting the riser bridge pipe 6;

[0045] (5) Install the carbonization chamber pressure monotonic valve assembly prepared in advance, and support and fix the carbonization chamber pressure monotonic valve assembly 3;

[0046] (6) Install the riser bridge pipe 6 and the newly added riser section 7;

[0047] (7) Seal or tighten the socket joints;

[0048] (8) Lengthen the circulating ammonia water pipeline and restore the circulating ammonia water pipeline. Restore the water seal of the riser pipe and the upper and lower water pipelines;

[0049] (9) Adjust the monotonic valve to the maximum opening position;

[0050] (10) Resuming normal production;

[0051] (11) After the coke oven resumed production, a new operating platform was built 2m above the original gas collecting pipe 8 platform, and the stairs to the new platform were installed on the small platform at the suction pipe.

[0052] After the carbonization chamber pressure monotonic valves 3 of the whole furnace are replaced, the construction of various pipelines and automatic control systems will be considered. After all the construction is completed, the monotonic system will be put into use at one time. The use condition of the carbonization chamber monotonic is that the pressure of the gas collecting pipe 8 is negative pressure. For a 6.25m coke oven, the pressure of the gas collecting pipe 8 is controlled between -200Pa and -300Pa.

[0053] The equipment manufacturing method and construction method of the newly added coke oven carbonization chamber pressure monotonic equipment without stopping production, using the socket structure of the bridge pipe and the valve body, solves the problem of reasonable connection between the carbonization chamber pressure monotonic valve 3 and the original structure without modifying the original equipment.

[0054] The above embodiments are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements of the present invention by relevant technical personnel in the field should be included in the protection scope determined by the claims of the present invention.

Claims

1. A pressure monotonic device for a coke oven carbonization chamber, comprising a riser and a gas collecting pipe, wherein a riser bridge pipe is installed on the riser, a first plug interface is provided at the bottom of the riser bridge pipe, and a second receiving interface is provided at the top of the gas collecting pipe, characterized in that: It also includes a carbonization chamber pressure monotonic valve, a first receiving tube and a second receiving tube, the carbonization chamber pressure monotonic valve includes a carbonization chamber pressure monotonic valve body, a carbonization chamber pressure monotonic valve inlet, and a carbonization chamber pressure monotonic valve outlet; the first receiving tube includes a first receiving port and a first joint portion which is an integral structure with the first receiving port, the first receiving port is sealingly matched with the first plug port at the bottom of the riser bridge pipe, and the first joint portion is fixedly connected to the carbonization chamber pressure monotonic valve inlet; the second receiving tube includes a second plug port and a second joint portion which is an integral structure with the second plug port, the second plug port is sealingly matched with the second receiving port at the top of the gas collecting pipe, and the second joint portion is fixedly connected to the carbonization chamber pressure monotonic valve outlet; the riser also includes a newly added riser pipe section, the length of the newly added riser pipe section is the same as the total length of the carbonization chamber pressure monotonic valve, the first receiving tube and the second receiving tube after the three are connected; A flange is provided at the inlet of the carbonization chamber pressure monotonic valve, and the first joint part has the same flange structure as the flange provided at the inlet of the carbonization chamber pressure monotonic valve, and the first joint part is fixedly connected to the flange at the inlet of the carbonization chamber pressure monotonic valve by bolts; or, a socket structure is provided at the inlet of the carbonization chamber pressure monotonic valve, and a plug-in interface structure is provided at the outlet of the carbonization chamber pressure monotonic valve; the first joint part of the first socket tube is a plug-in interface combination structure, and the plug-in interface combination structure of the first joint part is matched and connected with the socket structure at the inlet of the carbonization chamber pressure monotonic valve; the second joint part of the second socket tube is a socket combination structure, and the socket combination structure of the second joint part is matched and sealed with the plug-in interface structure at the outlet of the carbonization chamber pressure monotonic valve.

2. The coke oven carbonization chamber pressure monotonic device according to claim 1, characterized in that: A flange is provided at the outlet of the carbonization chamber pressure monotonic valve, and the second joint part has the same flange structure as the flange provided at the outlet of the carbonization chamber pressure monotonic valve. The flange at the outlet of the carbonization chamber pressure monotonic valve is fixedly connected to the second joint part by bolts.

3. The coke oven carbonization chamber pressure monotonic device according to claim 2, characterized in that: Sealing rubber plates are arranged between the first joint part and the flange at the inlet of the carbonization chamber pressure monotonic valve, and between the flange at the outlet of the carbonization chamber pressure monotonic valve and the second joint part.

4. The coke oven carbonization chamber pressure monotonic device according to claim 1, characterized in that: The plug-in interface combination structure of the first joint part includes a first flange fixedly connected to the first socket, a second flange fixedly connected to the first flange, and a third plug-in interface fixedly connected to the second flange. The third plug-in interface is matched and connected with the socket structure at the inlet of the carbonization chamber pressure monotonic valve.

5. The coke oven carbonization chamber pressure monotonic device according to claim 4, characterized in that: The socket assembly structure of the second joint part includes a third flange fixedly connected to the second plug interface, a fourth flange fixedly connected to the third flange, and a third socket fixedly connected to the fourth flange. The third socket is connected in coordination with the plug interface structure at the outlet of the carbonization chamber pressure monotonic valve.

6. The coke oven carbonization chamber pressure monotonic device according to claim 1, characterized in that: A coke oven carbonization chamber pressure measuring point is installed on the newly added riser section.

7. The coke oven carbonization chamber pressure monotonic device according to claim 1, characterized in that: A bracket that bears the weight of the pressure monotonic valve in the carbonization chamber is set on the steel column of the coke oven.

Images