CN110846086B - A direct cooling tower for washing coal gas - Google Patents
A direct cooling tower for washing coal gas Download PDFInfo
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- CN110846086B CN110846086B CN201911244075.3A CN201911244075A CN110846086B CN 110846086 B CN110846086 B CN 110846086B CN 201911244075 A CN201911244075 A CN 201911244075A CN 110846086 B CN110846086 B CN 110846086B
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- spray
- gas
- liquid
- tower body
- distribution device
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/12—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors
- C10K1/121—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors containing NH3 only (possibly in combination with NH4 salts)
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Industrial Gases (AREA)
Abstract
本发明涉及一种用于洗涤煤气的直冷塔，包括塔体、直喷管喷头、气体分布装置、盖板、隔板、含煤粉喷洒液出口、喷洒液进口、喷洒液出口、煤气进口、泵和煤气出口。其有益效果是：采用压力可调的直喷管喷头和脉冲结构气体分布装置，对清洗液进行循环清洗更新，可降低喷洒喷头堵塞的几率，减少停机检/维修时间，降低工人劳动强度，保障煤气净化顺利进行，提高生产作业效率。
The present invention relates to a direct cooling tower for washing coal gas, comprising a tower body, a direct spray pipe nozzle, a gas distribution device, a cover plate, a partition plate, a coal powder-containing spray liquid outlet, a spray liquid inlet, a spray liquid outlet, a coal gas inlet, a pump and a coal gas outlet. Its beneficial effects are: using a direct spray pipe nozzle with adjustable pressure and a pulse structure gas distribution device to circulate and clean the cleaning liquid, the probability of spray nozzle blockage can be reduced, the downtime inspection/repair time can be reduced, the labor intensity of workers can be reduced, the coal gas purification can be ensured to proceed smoothly, and the production efficiency can be improved.
Description
Technical Field
The invention relates to a gas washing device in the technical field of coal coking, in particular to a direct cooling tower for washing gas.
Background
In the coal coking industry in China, coke oven gas from a gas suction pipeline generally contains impurities such as tar coal dust and the like. After entering the primary cooler, the coal dust in the coke oven gas is gathered on the heat exchange tube or the night plate to block the primary cooler, thereby affecting the smooth operation of gas purification. At present, a direct cooling tower is added in front of a primary cooler, and pulverized coal is removed by circularly spraying through a spray head. The existing direct cooling tower and the spraying system thereof have the defects that along with the circulating spraying, the concentration of pulverized coal in the spraying liquid is larger and larger, and the spraying nozzle is easy to be blocked, so that the spraying nozzle needs to be cleaned frequently, which not only affects the production efficiency, but also increases the workload of inspection/maintenance staff.
Disclosure of Invention
In order to overcome the defects of the prior art, the technical problem solved by the invention is to provide the direct cooling tower for washing coal gas, which adopts the pressure-adjustable direct spray pipe nozzle and the pulse structure gas distribution device to circularly clean and update the cleaning liquid, so that the blocking probability of the spray nozzle can be reduced, the shutdown detection/maintenance time can be reduced, the labor intensity of workers can be reduced, the smooth operation of coal gas purification can be ensured, and the production operation efficiency can be improved.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
The direct cooling tower for washing the coal gas comprises a tower body, a direct spray pipe nozzle, a gas distribution device, a cover plate, a partition plate, a pulverized coal-containing spray liquid outlet, a spray liquid inlet, a spray liquid outlet, a coal gas inlet, a pump and a coal gas outlet, and is characterized in that the partition plate is arranged at the center of the bottom in the tower body to divide the bottom of the tower body into a left area and a right area; the gas distribution device is arranged at the middle lower part in the tower body and is provided with a straight spray pipe spray nozzle, the straight spray pipe spray nozzle is connected with the spray liquid outlet through a pump, the pulverized coal-containing spray liquid outlet and the gas inlet are sequentially arranged at the lower part at the left side of the lower part of the tower body from bottom to top, and the gas outlet is arranged on a sealing head at the top of the tower body.
The straight spray pipe shower nozzle is a plurality of, and the export upwards evenly sets up, and all has pressure regulating system.
The gas distribution device adopts a pulse structure.
The spraying liquid adopts ammonia water.
Compared with the prior art, the invention has the beneficial effects that:
1) The spray head adopts a straight spray pipe spray head, so that the blockage is not easy;
2) The spray head is upwards arranged to form a liquid column, the contact time increases;
3) The gas distribution device with pulse effect is adopted, the gas is uniformly distributed, liquid can form a liquid film on the distribution partition board, and the gas-liquid mass transfer is enhanced;
4) The bottom of the tower body is divided into two areas by the partition plate and the cover plate, so that the coal powder separation effect is achieved, and the circulating coal powder in the system is reduced.
Drawings
Fig. 1 is a schematic view of the structural principle of the present invention.
In the figure: 1-tower body 2-straight spray pipe nozzle 3-gas distribution device 4-cover plate 5-partition plate 6-pulverized coal-containing spray liquid outlet 7-spray liquid inlet 8-spray liquid outlet 9-gas inlet 10-pump 11-gas outlet
Detailed Description
The following is a further description of embodiments of the invention, taken in conjunction with the accompanying drawings:
The invention relates to a direct cooling tower for washing coal gas, which is shown in fig. 1 and comprises a tower body 1, a direct spray pipe spray head 2, a gas distribution device 3, a cover plate 4, a partition plate 5, a pulverized coal-containing spray liquid outlet 6, a spray liquid inlet 7, a spray liquid outlet 8, a coal gas inlet 9, a pump 10 and a coal gas outlet 11, wherein the partition plate 5 is arranged in the center of the bottom in the tower body 1 to divide the bottom of the tower body 1 into a left area and a right area, the spray liquid outlet 8 and the spray liquid inlet 7 are sequentially arranged at the lower part of the right side of the tower body 1 from bottom to top, the position of the spray liquid inlet 7 is higher than the upper end of the partition plate 5, the cover plate 4 is obliquely arranged above the spray liquid inlet 7 at the bottom of the right side of the tower body 1, the position of the spray liquid inlet 7 is higher than the spray liquid inlet 7, the left side extends to cover the partition plate 5, namely covers the partition plate 5, so that the pulverized coal is guaranteed to be separated from the upper part of the washing liquid containing pulverized coal to the left area of the lower part of the tower body 1, the gas distribution device 3 is arranged at the middle lower part in the tower body 1, the position is sequentially from bottom to top, the spray liquid inlet 7 is sequentially arranged at the lower part of the right side of the tower body 1, and is sequentially provided with the spray liquid inlet 10 from top to the upper part of the coal gas inlet 10, and the spray liquid inlet 10 is sequentially arranged at the upper part of the top of the coal gas inlet 10 and the top of the tower 1.
The number of the straight spray pipe nozzles 2 is several, the outlets are uniformly arranged upwards, and the straight spray pipe nozzles are all provided with a pressure regulating system, so that the pressure of each straight spray pipe nozzle 2 is ensured to be adjustable.
The gas distribution device 3 adopts a pulse structure, so that uniform gas distribution can be ensured.
The spraying liquid adopts ammonia water as spraying washing liquid.
Working principle:
1) Firstly, a valve of a spraying liquid inlet 7 is opened, and spraying liquid-ammonia water is supplemented to the right part of a baffle plate 5 at the bottom of the tower body 1 to reach the designed height;
2) Starting the pump 10, spraying liquid is sprayed upwards through the straight spray pipe spray heads 2 by the pump 10, and the pressure in each straight spray pipe spray head 2 is adjusted to be the same by the pressure adjusting system, so that the spraying liquid is ensured to be sprayed upwards uniformly;
3) The spray liquid is scattered downwards after the speed decay is zero after reaching the highest point, and forms a high-density liquid area with high mass transfer capacity with the subsequent upward spray liquid;
4) The gas enters from the gas inlet 9, flows upwards and uniformly flows through the gas distribution device 3, contacts with the spraying liquid which drops from top to bottom and is washed, and the spraying liquid repeatedly contacts with the gas in the rising and falling processes, so that the contact time is prolonged, the gas washing effect is enhanced, and the washed clean gas is discharged from the gas outlet 11;
5) The straight jet pipe nozzle 2 is directly cleaned when the spraying liquid with pressure is sprayed out, so that the adhesion of coal dust is prevented, and meanwhile, the straight jet pipe nozzle 2 is subjected to impact cleaning again when the spraying liquid falls, so that the straight jet pipe nozzle 2 is not easy to block;
6) The spraying liquid falls through the gas distribution device 3 and fully contacts with the uniformly distributed gas under the action of the pulse effect, and a liquid film is formed on a distribution plate of the gas distribution device 3 by the spraying liquid, so that the gas-liquid mass transfer effect is improved, and meanwhile, the gas distribution device 3 is cleaned;
7) The spray liquid falls down and flows through the cover plate 4 to enter the left side of the baffle plate 5 at the bottom of the tower body 1 for storage and sedimentation, the concentrated spray liquid containing impurities such as coal dust at the lower part is sent into the tar ammonia water clarifying tank from the coal dust spray liquid outlet 6 for separation, and the spray liquid after sedimentation at the upper part fully flows into the right side of the baffle plate 5 and enters the system together with the supplementary ammonia water as spray liquid for circulating spraying.
Claims (1)
1. The direct cooling tower for washing the coal gas comprises a tower body, a direct spray pipe nozzle, a gas distribution device, a cover plate, a partition plate, a pulverized coal-containing spray liquid outlet, a spray liquid inlet, a spray liquid outlet, a coal gas inlet, a pump and a coal gas outlet, and is characterized in that the partition plate is arranged at the center of the bottom in the tower body to divide the bottom of the tower body into a left area and a right area; the gas distribution device is arranged at the middle lower part in the tower body and is provided with a straight spray pipe spray nozzle, the straight spray pipe spray nozzle is connected with the spray liquid outlet through a pump, the pulverized coal-containing spray liquid outlet and the gas inlet are sequentially arranged at the lower part at the left side of the lower part of the tower body from bottom to top, and the gas outlet is arranged on a sealing head at the top of the tower body;
The working principle of the direct cooling tower is as follows:
1) Firstly, a spraying liquid inlet valve is opened, and spraying liquid-ammonia water is supplemented to the right part of a baffle plate at the bottom of the tower body to reach the designed height;
2) Starting a pump, spraying liquid is sprayed upwards through the straight spray pipe spray heads through the pump, and the pressure in each straight spray pipe spray head is adjusted to be the same through a pressure adjusting system, so that the spraying liquid is ensured to be sprayed upwards uniformly;
3) The spray liquid is scattered downwards after the speed decay is zero after reaching the highest point, and forms a high-density liquid area with high mass transfer capacity with the subsequent upward spray liquid;
4) The gas enters from the gas inlet, flows upwards through the gas distribution device to be uniformly distributed, contacts with the spraying liquid which drops from top to bottom to be washed, and the spraying liquid repeatedly contacts with the gas in the rising and falling processes, so that the contact time is prolonged, the gas washing effect is enhanced, and the washed clean gas is discharged from the gas outlet;
5) The spray liquid with pressure directly cleans the straight spray pipe nozzle when sprayed out to prevent the coal dust from adhering, and simultaneously, the spray liquid is sprayed down to impact and clean the straight spray pipe nozzle again to ensure that the straight spray pipe nozzle is not easy to be blocked;
6) The spraying liquid falls through the gas distribution device and fully contacts with the uniformly distributed gas under the action of the pulse effect, and a liquid film is formed on the distribution plate of the gas distribution device by the spraying liquid, so that the gas-liquid mass transfer effect is improved, and meanwhile, the gas distribution device is cleaned;
7) The spray liquid falls down and flows through the cover plate to enter the left side of the baffle plate at the bottom of the tower body for storage and sedimentation, the concentrated spray liquid containing pulverized coal impurities at the lower part is sent into the tar ammonia water clarifying tank from the pulverized coal spray liquid outlet for separation, and the spray liquid after sedimentation at the upper part fully flows into the right side of the baffle plate and enters the system together with the supplementary ammonia water to be circularly sprayed;
The number of the straight spray pipe nozzles is several, the outlets are uniformly arranged upwards, and the straight spray pipe nozzles are provided with pressure regulating systems;
the gas distribution device adopts a pulse structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911244075.3A CN110846086B (en) | 2019-12-06 | 2019-12-06 | A direct cooling tower for washing coal gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911244075.3A CN110846086B (en) | 2019-12-06 | 2019-12-06 | A direct cooling tower for washing coal gas |
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| Publication Number | Publication Date |
|---|---|
| CN110846086A CN110846086A (en) | 2020-02-28 |
| CN110846086B true CN110846086B (en) | 2025-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911244075.3A Active CN110846086B (en) | 2019-12-06 | 2019-12-06 | A direct cooling tower for washing coal gas |
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| CN (1) | CN110846086B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112683103A (en) * | 2020-12-30 | 2021-04-20 | 国家能源集团煤焦化有限责任公司 | Cleaning device for primary cooler cooling pipe, coke oven gas cooling device and coke oven assembly |
Citations (6)
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|---|---|---|---|---|
| CN2284638Y (en) * | 1997-03-24 | 1998-06-24 | 化学工业部上海化工研究院 | Desorption tower for thin ammonia water containing carbon dioxide |
| CN2725752Y (en) * | 2004-08-16 | 2005-09-14 | 株洲工学院帅科机械清洗研究所 | Conic net purifying device for atomizing and inversely spraying fume |
| CN103908855A (en) * | 2014-03-14 | 2014-07-09 | 中国石油大学(北京) | Venturi rod layer with non-uniform rod distances |
| CN205199758U (en) * | 2015-11-23 | 2016-05-04 | 金川集团股份有限公司 | Through type prevents blockking up straight mist -ified shower nozzle |
| CN209173904U (en) * | 2018-08-02 | 2019-07-30 | 佛山市瑞丰恒业机械有限公司 | Neutralizing tower |
| CN211420078U (en) * | 2019-12-06 | 2020-09-04 | 中冶焦耐(大连)工程技术有限公司 | Direct cooling tower for washing coal gas |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3613151A1 (en) * | 1986-04-18 | 1987-10-22 | Vaw Ver Aluminium Werke Ag | Contact element for separating off particles and/or gaseous substances from a gas stream |
| JPH07328369A (en) * | 1994-06-06 | 1995-12-19 | Mitsubishi Heavy Ind Ltd | Gas washing tower |
| CN202786153U (en) * | 2012-07-30 | 2013-03-13 | 中冶焦耐工程技术有限公司 | Novel direct cooling tower of coal gas purification system |
| CN208032306U (en) * | 2017-05-11 | 2018-11-02 | 山东中航天业科技有限公司 | A kind of turn-back flow high-efficiency desulfation dust-extraction device |
-
2019
- 2019-12-06 CN CN201911244075.3A patent/CN110846086B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2284638Y (en) * | 1997-03-24 | 1998-06-24 | 化学工业部上海化工研究院 | Desorption tower for thin ammonia water containing carbon dioxide |
| CN2725752Y (en) * | 2004-08-16 | 2005-09-14 | 株洲工学院帅科机械清洗研究所 | Conic net purifying device for atomizing and inversely spraying fume |
| CN103908855A (en) * | 2014-03-14 | 2014-07-09 | 中国石油大学(北京) | Venturi rod layer with non-uniform rod distances |
| CN205199758U (en) * | 2015-11-23 | 2016-05-04 | 金川集团股份有限公司 | Through type prevents blockking up straight mist -ified shower nozzle |
| CN209173904U (en) * | 2018-08-02 | 2019-07-30 | 佛山市瑞丰恒业机械有限公司 | Neutralizing tower |
| CN211420078U (en) * | 2019-12-06 | 2020-09-04 | 中冶焦耐(大连)工程技术有限公司 | Direct cooling tower for washing coal gas |
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| CN110846086A (en) | 2020-02-28 |
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