CN114874788B - Remedying method for coke oven gas collecting tube after pressure measuring point blockage - Google Patents
Remedying method for coke oven gas collecting tube after pressure measuring point blockage Download PDFInfo
- Publication number
- CN114874788B CN114874788B CN202210636519.3A CN202210636519A CN114874788B CN 114874788 B CN114874788 B CN 114874788B CN 202210636519 A CN202210636519 A CN 202210636519A CN 114874788 B CN114874788 B CN 114874788B
- Authority
- CN
- China
- Prior art keywords
- gas collecting
- collecting tube
- pressure
- cleaning hole
- measuring point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000571 coke Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004140 cleaning Methods 0.000 claims abstract description 70
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 230000003044 adaptive effect Effects 0.000 claims abstract description 5
- 230000000903 blocking effect Effects 0.000 claims abstract description 5
- 238000005553 drilling Methods 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000009530 blood pressure measurement Methods 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011269 tar Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B27/00—Arrangements for withdrawal of the distillation gases
- C10B27/06—Conduit details, e.g. valves
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B41/00—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke
- C10B41/08—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke for the withdrawal of the distillation gases
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B43/00—Preventing or removing incrustations
- C10B43/02—Removing incrustations
- C10B43/04—Removing incrustations by mechanical means
- C10B43/06—Removing incrustations by mechanical means from conduits, valves or the like
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Coke Industry (AREA)
Abstract
The invention discloses a method for remedying the blockage of a pressure measuring point of a coke oven gas collecting pipe, which comprises the following steps: a. manufacturing a gas collecting tube cleaning hole sealing cover component: taking a standby cleaning hole cover, drilling holes on the standby cleaning hole cover, selecting an adaptive communicating pipe for insertion, and tightly sealing the periphery of the holes; b. installing a gas collecting tube cleaning hole sealing cover member; c. connecting the gas collecting pipe pressure transmitter, dismantling the connection between the connecting pipe of the gas collecting pipe pressure transmitter and the original gas collecting pipe pressure measuring point, and blocking the pipeline of the original gas collecting pipe measuring point by using a wooden wedge; d. restoring the remote regulation of the pressure of the gas collecting tube: and the normal display of the pressure of the gas collecting tube of the coke oven is confirmed through remote display, and the automatic adjustment turning plate for the pressure of the gas collecting tube is automatically turned over, so that the normal operation of the automatic adjustment is confirmed. The invention can solve the problem of gas collecting tube pressure measurement when the gas collecting tube pressure measuring point of the coke oven is blocked.
Description
Technical Field
The invention relates to the technical field of coke oven coking process, in particular to a method for remedying the blockage of a pressure measuring point of a gas collecting tube of a coke oven.
Background
In the production process of the coke oven, the pressure of the gas collecting pipe needs to be controlled in a certain range so as to ensure that raw gas is smoothly led out on the premise of not overflowing, and the stability of the internal pressure of the coke oven system is met so as to protect the structure of the oven body. The control of the pressure of the gas collecting tube is usually realized by a fuzzy control system after the pressure detection, so that the measurement and the accuracy of the pressure of the gas collecting tube are ensured.
However, as ammonia water, tar, coal dust and other substances are added in the gas collecting tube except raw gas, a guide tube of a pressure detection point can be blocked, so that the pressure of the gas collecting tube cannot be measured or is inaccurate, a gas collecting tube pressure fuzzy control system does not have a control basis, stable regulation of the pressure of the gas collecting tube cannot be carried out, and the guide tube for detecting the pressure of the gas collecting tube cannot be dredged after being blocked, so that adverse effects of shutdown maintenance of a coke oven are caused.
Disclosure of Invention
Aiming at the technical problems, the invention provides a method for remedying the blockage of the pressure measuring point of the coke oven gas collecting tube.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a remedying method for a coke oven gas collecting tube after a pressure measuring point is blocked comprises the following steps:
a. manufacturing a gas collecting tube cleaning hole sealing cover component:
taking a standby cleaning hole cover, drilling on the standby cleaning hole cover, selecting an adaptive communicating pipe to be inserted into the hole for 200-300 mm deep, and tightly sealing the periphery of the hole;
b. installing a gas collecting tube cleaning hole sealing cover component:
the opening degree of the turning plate is automatically adjusted according to the gas collecting tube pressure and the gas collecting tube pressure of the coke ovens in the same group, which can normally display the gas collecting tube pressure, the gas collecting tube pressure corresponding to the coke oven blocked by the gas collecting tube pressure measuring point is automatically adjusted to be manual, and the opening degree of the turning plate is automatically adjusted to be larger than the gas collecting tube pressure of the coke ovens in the same group, which normally display the gas collecting tube pressure, so that the gas collecting tube pressure of the coke oven blocked by the gas collecting tube pressure measuring point is ensured to be slightly lower than the gas collecting tube pressure of the normal coke oven;
selecting a cleaning hole close to a pressure detection point of an original gas collecting tube to remove the original cleaning hole cover, pressing raw gas in the removing process of the cleaning hole cover by using compressed air, and using a gas collecting tube cleaning hole sealing cover member to replace the original gas collecting tube cleaning hole cover to cover the cleaning hole, so that good sealing is ensured;
c. connecting a gas collecting tube pressure transmitter:
removing connection between a connecting pipe of the gas collecting pipe pressure transmitter and the original gas collecting pipe pressure measuring point, and blocking a pipeline of the original gas collecting pipe measuring point by using a wooden wedge;
the communicating pipe is of a three-way structure, the communicating pipe is connected with the pressure gauge through a valve, meanwhile, the communicating pipe is connected with the gas collecting pipe pressure transmitter through a hose, a ball valve is arranged on the communicating pipe, gas collecting pipe pressure detection is recovered, and remote transmission of gas collecting pipe pressure is realized;
d. restoring the remote regulation of the pressure of the gas collecting tube:
and the normal display of the pressure of the gas collecting tube of the coke oven is confirmed through remote display, and the automatic adjustment turning plate for the pressure of the gas collecting tube is automatically turned over, so that the normal operation of the automatic adjustment is confirmed.
The small-head outer diameter of the gas collecting tube cleaning hole sealing cover member is matched with the cleaning hole in size, and the cleaning hole can be sealed.
And a standby cleaning hole cover in the step a is sealed with the periphery of the communicating pipe by welding.
Wherein, the compressed air in the step b can be controlled according to the actual air quantity.
In the step b, when the gas collecting tube cleaning hole sealing cover member is installed, the pressure of the gas collecting tube is controlled to be more than or equal to 10Pa, so that the raw gas is prevented from overflowing.
The beneficial effects of the invention are as follows: the invention can realize the measurement of quickly recovering the pressure of the gas collecting tube, ensures the normal order of production, and avoids the safety risks that the traditional forced dredging of the original measuring point can generate sparks and leak raw gas; under the condition that the original measuring point cannot be dredged, the measurement of the pressure of the gas collecting tube is recovered, and the normal production is ensured to be quickly recovered; when the sealing cover component of the gas collecting tube cleaning hole is found to be blocked, the sealing cover component of the gas collecting tube cleaning hole can be directly replaced by a cleaning hole cover, and the sealing cover component of the gas collecting tube cleaning hole is removed for dredging.
Drawings
Fig. 1 is a schematic diagram of the present invention.
In the figure: the device comprises a sealing cover component of a cleaning hole of a 1-gas collecting tube, a 2-communicating tube, a 3-cleaning hole, a 4-valve, a 5-pressure gauge, a 6-gas collecting tube pressure transmitter, a 7-hose, an 8-gas collecting tube and a 9-original gas collecting tube pressure detection catheter.
Detailed Description
The objects, technical solutions and advantages of the present invention will become more apparent by the following detailed description of the present invention with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
Example 1
As shown in fig. 1, a method for remedying the blockage of a pressure measuring point of a gas collecting pipe of a coke oven comprises the following steps:
a. manufacturing a gas collecting tube cleaning hole sealing cover component 1:
taking a standby cleaning hole cover, drilling on the standby cleaning hole cover, selecting an adaptive communicating pipe 2 to be inserted into the hole to a depth of 200mm, and tightly sealing the periphery of the hole;
b. installing a gas collecting tube cleaning hole sealing cover component 1:
the opening degree of the turning plate is automatically adjusted according to the gas collecting tube pressure and the gas collecting tube pressure of the coke ovens in the same group, which can normally display the gas collecting tube pressure, the gas collecting tube pressure corresponding to the coke oven blocked by the gas collecting tube pressure measuring point is automatically adjusted to be manual, and the opening degree of the turning plate is automatically adjusted to be larger than the gas collecting tube pressure of the coke ovens in the same group, which normally display the gas collecting tube pressure, so that the gas collecting tube pressure of the coke oven blocked by the gas collecting tube pressure measuring point is ensured to be slightly lower than the gas collecting tube pressure of the normal coke oven;
selecting a cleaning hole 3 close to a pressure detection point of an original gas collecting tube, taking down the original cleaning hole cover, pressing raw gas in the taking down process of the cleaning hole cover by using compressed air, and using a gas collecting tube cleaning hole sealing cover component 1 to replace the original gas collecting tube cleaning hole cover to cover the cleaning hole 3, so that good sealing is ensured;
c. connecting a gas collecting pipe pressure transmitter 6:
removing connection between a connecting pipe of the gas collecting pipe pressure transmitter 6 and the original gas collecting pipe pressure measuring point, and blocking a pipeline of the original gas collecting pipe measuring point by using a wooden wedge;
the communicating pipe 2 is of a three-way structure, the communicating pipe 2 is connected with the pressure gauge 5 through the valve 4, meanwhile, the communicating pipe 2 is connected with the gas collecting pipe pressure transmitter 6 through the hose 7, the ball valve is arranged on the communicating pipe 2, the gas collecting pipe pressure detection is recovered, and the remote transmission of the gas collecting pipe pressure is realized;
d. restoring the remote regulation of the pressure of the gas collecting tube:
and the normal display of the pressure of the gas collecting tube of the coke oven is confirmed through remote display, and the automatic adjustment turning plate for the pressure of the gas collecting tube is automatically turned over, so that the normal operation of the automatic adjustment is confirmed.
The small-head outer diameter of the gas collecting tube cleaning hole sealing cover member 1 is matched with the cleaning hole 3 in size, and the cleaning hole 3 can be sealed.
Wherein, the standby cleaning hole cover in the step a is sealed with the periphery of the communicating pipe 2 by welding.
Wherein, the compressed air in the step b can be controlled according to the actual air quantity.
In the step b, when the gas collecting tube cleaning hole sealing cover component 1 is installed, the pressure of the gas collecting tube 8 is controlled to be more than or equal to 10Pa, so that the raw gas is prevented from overflowing.
Example 2
A remedying method for a coke oven gas collecting tube after a pressure measuring point is blocked comprises the following steps:
a. manufacturing a gas collecting tube cleaning hole sealing cover component 1:
taking a standby cleaning hole cover, drilling on the standby cleaning hole cover, selecting an adaptive communicating pipe 2 to be inserted into the hole to a depth of 300mm, and tightly sealing the periphery of the hole;
b. installing a gas collecting tube cleaning hole sealing cover component 1:
the opening degree of the turning plate is automatically adjusted according to the gas collecting tube pressure and the gas collecting tube pressure of the coke ovens in the same group, which can normally display the gas collecting tube pressure, the gas collecting tube pressure corresponding to the coke oven blocked by the gas collecting tube pressure measuring point is automatically adjusted to be manual, and the opening degree of the turning plate is automatically adjusted to be larger than the gas collecting tube pressure of the coke ovens in the same group, which normally display the gas collecting tube pressure, so that the gas collecting tube pressure of the coke oven blocked by the gas collecting tube pressure measuring point is ensured to be slightly lower than the gas collecting tube pressure of the normal coke oven;
selecting a cleaning hole 3 close to a pressure detection point of an original gas collecting tube, taking down the original cleaning hole cover, pressing raw gas in the taking down process of the cleaning hole cover by using compressed air, and using a gas collecting tube cleaning hole sealing cover component 1 to replace the original gas collecting tube cleaning hole cover to cover the cleaning hole 3, so that good sealing is ensured;
c. connecting a gas collecting pipe pressure transmitter 6:
removing connection between a connecting pipe of the gas collecting pipe pressure transmitter 6 and the original gas collecting pipe pressure measuring point, and blocking a pipeline of the original gas collecting pipe measuring point by using a wooden wedge;
the communicating pipe 2 is of a three-way structure, the communicating pipe 2 is connected with the pressure gauge 5 through the valve 4, meanwhile, the communicating pipe 2 is connected with the gas collecting pipe pressure transmitter 6 through the hose 7, the ball valve is arranged on the communicating pipe 2, the gas collecting pipe pressure detection is recovered, and the remote transmission of the gas collecting pipe pressure is realized;
d. restoring the remote regulation of the pressure of the gas collecting tube:
and the normal display of the pressure of the gas collecting tube of the coke oven is confirmed through remote display, and the automatic adjustment turning plate for the pressure of the gas collecting tube is automatically turned over, so that the normal operation of the automatic adjustment is confirmed.
The small-head outer diameter of the gas collecting tube cleaning hole sealing cover member 1 is matched with the cleaning hole 3 in size, and the cleaning hole 3 can be sealed.
Wherein, the standby cleaning hole cover in the step a is sealed with the periphery of the communicating pipe 2 by welding.
Wherein, the compressed air in the step b can be controlled according to the actual air quantity.
In the step b, when the gas collecting tube cleaning hole sealing cover component 1 is installed, the pressure of the gas collecting tube 8 is controlled to be more than or equal to 10Pa, so that the raw gas is prevented from overflowing.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and are in no way limiting of the invention. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present invention should be included in the scope of the present invention. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.
Claims (5)
1. The method for remedying the blockage of the pressure measuring point of the gas collecting pipe of the coke oven is characterized by comprising the following steps:
a. manufacturing a gas collecting tube cleaning hole sealing cover component (1):
taking a standby cleaning hole cover, drilling holes on the standby cleaning hole cover, selecting an adaptive communicating pipe (2) to be inserted into the holes with the depth of 200-300 mm, and tightly sealing the periphery of the holes;
b. installing a gas collecting tube cleaning hole sealing cover component (1):
the opening degree of the turning plate is automatically adjusted according to the gas collecting tube pressure and the gas collecting tube pressure of the coke ovens in the same group, which can normally display the gas collecting tube pressure, the gas collecting tube pressure corresponding to the coke oven blocked by the gas collecting tube pressure measuring point is automatically adjusted to be manual, and the opening degree of the turning plate is automatically adjusted to be larger than the gas collecting tube pressure of the coke ovens in the same group, which normally display the gas collecting tube pressure, so that the gas collecting tube pressure of the coke oven blocked by the gas collecting tube pressure measuring point is ensured to be slightly lower than the gas collecting tube pressure of the normal coke oven;
selecting a cleaning hole (3) close to a pressure detection point of an original gas collecting tube, taking down the original cleaning hole cover, pressing raw gas in the taking down process of the cleaning hole cover by using compressed air, and using a gas collecting tube cleaning hole sealing cover component (1) to replace the original gas collecting tube cleaning hole cover to cover the cleaning hole (3), so that good sealing is ensured;
c. connecting a gas collecting tube pressure transmitter (6):
removing connection between a connecting pipe of a gas collecting pipe pressure transmitter (6) and a pressure measuring point of the original gas collecting pipe, and blocking a pipeline of the measuring point of the original gas collecting pipe by using a wooden wedge;
the communicating pipe (2) is of a three-way structure, the communicating pipe (2) is connected with the pressure gauge (5) through the valve (4), meanwhile, the communicating pipe (2) is connected with the gas collecting pipe pressure transmitter (6) through the hose (7), the ball valve is arranged on the communicating pipe (2), the gas collecting pipe pressure detection is recovered, and the remote transmission of the gas collecting pipe pressure is realized;
d. restoring the remote regulation of the pressure of the gas collecting tube:
and the normal display of the pressure of the gas collecting tube of the coke oven is confirmed through remote display, and the automatic adjustment turning plate for the pressure of the gas collecting tube is automatically turned over, so that the normal operation of the automatic adjustment is confirmed.
2. The method for remedying after the blockage of the pressure measuring point of the gas collecting pipe of the coke oven according to claim 1, which is characterized in that: the outer diameter of the small head of the gas collecting tube cleaning hole sealing cover component (1) is matched with the size of the cleaning hole (3), and the cleaning hole (3) can be sealed.
3. The method for remedying after the blockage of the pressure measuring point of the gas collecting pipe of the coke oven according to claim 1, which is characterized in that: and a standby cleaning hole cover in the step a is sealed with the periphery of the communicating pipe (2) by welding.
4. The method for remedying after the blockage of the pressure measuring point of the gas collecting pipe of the coke oven according to claim 1, which is characterized in that: the compressed air in the step b can be controlled according to the actual air quantity.
5. The method for remedying after the blockage of the pressure measuring point of the gas collecting pipe of the coke oven according to claim 1, which is characterized in that: in the step b, when the gas collecting tube cleaning hole sealing cover component (1) is installed, the pressure of the gas collecting tube (8) is controlled to be more than or equal to 10Pa, so that the raw gas is prevented from overflowing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210636519.3A CN114874788B (en) | 2022-06-07 | 2022-06-07 | Remedying method for coke oven gas collecting tube after pressure measuring point blockage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210636519.3A CN114874788B (en) | 2022-06-07 | 2022-06-07 | Remedying method for coke oven gas collecting tube after pressure measuring point blockage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114874788A CN114874788A (en) | 2022-08-09 |
| CN114874788B true CN114874788B (en) | 2023-11-17 |
Family
ID=82680531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210636519.3A Active CN114874788B (en) | 2022-06-07 | 2022-06-07 | Remedying method for coke oven gas collecting tube after pressure measuring point blockage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114874788B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205165287U (en) * | 2015-10-22 | 2016-04-20 | 中国石油化工股份有限公司 | Tubular dredge |
| CN206479277U (en) * | 2017-01-23 | 2017-09-08 | 中冶焦耐(大连)工程技术有限公司 | A kind of coke oven crossover main raw coke oven gas pressure-detecting device |
| CN108003901A (en) * | 2017-12-05 | 2018-05-08 | 马鞍山钢铁股份有限公司 | A kind of coke oven bridge tube replacing options and its replacement auxiliary device |
| CN108410481A (en) * | 2018-03-28 | 2018-08-17 | 宣化钢铁集团有限责任公司 | A kind of coke oven vertical flame path dredging sweeper and dredging method |
| CN109575955A (en) * | 2018-12-20 | 2019-04-05 | 中冶焦耐(大连)工程技术有限公司 | A kind of non-maintaining coke oven bridge tube pressure-measuring system and method automatically |
| CN209024455U (en) * | 2018-10-29 | 2019-06-25 | 攀钢集团攀枝花钢钒有限公司 | Coke oven gas collecting tube threeway clearing apparatus |
| CN215327896U (en) * | 2021-03-25 | 2021-12-28 | 唐山钢铁集团有限责任公司 | Pressure measuring device for measuring pressure of gas collecting pipe of coke oven |
-
2022
- 2022-06-07 CN CN202210636519.3A patent/CN114874788B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205165287U (en) * | 2015-10-22 | 2016-04-20 | 中国石油化工股份有限公司 | Tubular dredge |
| CN206479277U (en) * | 2017-01-23 | 2017-09-08 | 中冶焦耐(大连)工程技术有限公司 | A kind of coke oven crossover main raw coke oven gas pressure-detecting device |
| CN108003901A (en) * | 2017-12-05 | 2018-05-08 | 马鞍山钢铁股份有限公司 | A kind of coke oven bridge tube replacing options and its replacement auxiliary device |
| CN108410481A (en) * | 2018-03-28 | 2018-08-17 | 宣化钢铁集团有限责任公司 | A kind of coke oven vertical flame path dredging sweeper and dredging method |
| CN209024455U (en) * | 2018-10-29 | 2019-06-25 | 攀钢集团攀枝花钢钒有限公司 | Coke oven gas collecting tube threeway clearing apparatus |
| CN109575955A (en) * | 2018-12-20 | 2019-04-05 | 中冶焦耐(大连)工程技术有限公司 | A kind of non-maintaining coke oven bridge tube pressure-measuring system and method automatically |
| CN215327896U (en) * | 2021-03-25 | 2021-12-28 | 唐山钢铁集团有限责任公司 | Pressure measuring device for measuring pressure of gas collecting pipe of coke oven |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114874788A (en) | 2022-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109798151B (en) | Method for intelligently monitoring operation condition of gas extraction pipeline | |
| CN209927389U (en) | Blockage detection device of CEMS system sampling probe | |
| CN114874788B (en) | Remedying method for coke oven gas collecting tube after pressure measuring point blockage | |
| CN106595948A (en) | Coke oven bridge pipe raw gas pressure detection device | |
| CN208476610U (en) | A kind of collecting and sampling device of environmental protection coal dust | |
| CN111897027B (en) | CEMS probe anti-blocking detection cleaning device and method | |
| CN210645540U (en) | Blast furnace gas dry method dust removal sack box inlet and outlet pressure difference detection device | |
| CN109575955B (en) | Automatic maintenance-free coke oven bridge pipe pressure measurement system and method | |
| CN109357809A (en) | A kind of coke oven bridge tube raw coke oven gas pressure-measuring system and method | |
| CN215927313U (en) | Blowout prevention mechanism for gas production wellhead and plunger gas lift drainage gas production device | |
| CN205205073U (en) | Dry coke quenching stove water sealed tank | |
| CN219244873U (en) | Disc device for measuring suction force of coke oven bridge pipe | |
| CN204903242U (en) | Sampling case device among high temperature flue gas sampling system | |
| CN210037347U (en) | Active coke particle and regeneration gas separation pressure sampling device | |
| CN216342085U (en) | Gas tightness detection device for extraction drill hole | |
| CN220977040U (en) | Pressure taking device for tank pressure | |
| CN219345681U (en) | Intelligent exhaust valve | |
| CN214953019U (en) | Seabed natural gas leakage detection device | |
| CN110681520A (en) | Quenching tower spray gun dredging device and dredging control method | |
| CN217351255U (en) | Monotonous equipment of coke oven carbonization chamber pressure | |
| CN220183130U (en) | Coke oven adds and subtracts cock lower part branch pipe cleaning device | |
| CN210030561U (en) | Pressure guiding device suitable for coke oven crude gas system | |
| CN221260208U (en) | Low-pressure side windproof cap of hearth negative pressure instrument | |
| CN204958837U (en) | Prevent superpressure gas making system | |
| CN221302441U (en) | High-solid-content tank liquid detection anti-blocking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |