CN203144358U - Equipment for removing naphthalene in high-temperature coke-oven gas - Google Patents
Equipment for removing naphthalene in high-temperature coke-oven gas Download PDFInfo
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- CN203144358U CN203144358U CN 201320084530 CN201320084530U CN203144358U CN 203144358 U CN203144358 U CN 203144358U CN 201320084530 CN201320084530 CN 201320084530 CN 201320084530 U CN201320084530 U CN 201320084530U CN 203144358 U CN203144358 U CN 203144358U
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- cooler
- naphthalene
- tar
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Abstract
The utility model discloses equipment for removing naphthalene in high-temperature coke-oven gas, belongs to the technical field of naphthalene removing in the high-temperature coke-oven gas, and mainly solves the problem in the prior art that special equipment is required for naphthalene removing so that the equipment investment is large. The equipment is mainly characterized in that the lower part of a cooler is provided with a coke-oven gas outlet, the middle and lower parts of the cooler are respectively provided with a tar outlet, the middle upper part of the cooler is provided with a primary cooler, the middle lower part of the cooler is provided with a horizontal pipe primary cooler which is composed of refrigeration water pipelines, and upper-layer nozzles and lower-layer nozzles are respectively arranged above the primary cooler and the horizontal pipe primary cooler in the cooler; and the equipment also comprises an ammonia water tower and a tar ammonia water pump, wherein the tar outlet formed in the middle part of the cooler is connected with the upper part of the ammonia water tower, the tar outlet formed in the lower part of the cooler is connected with the lower part of the ammonia water tower, and the tar ammonia water pump is respectively connected with the upper-layer nozzles and the lower-layer nozzles arranged above the primary cooler and the horizontal pipe primary cooler. The equipment provided by the utility model has the characteristics that the special naphthalene removing equipment is not needed, namely, the naphthalene in the high-temperature coke-oven gas is removed in a primary cold workshop section, and the equipment is mainly used for cleaning the naphthalene in the high-temperature coke-oven gas in the coking industry.
Description
Technical field
The utility model belongs to the high-temperature coke furnace gas except the naphthalene technical field.Be specifically related to a kind of for the equipment of removing high-temperature coke furnace gas naphthalene in the just cold workshop section of raw gas.
Background technology
The COG(coke(oven)gas) purification comprises coal gas cooling (being cooled to 22 ℃ from 82 ℃), except naphthalene, except six procedures such as tar fog, desulfurization, deamination and crude benzol recovery.The raw gas that in the coking industry coking by coke oven is produced carries out at first considering cooling except naphthalene when chemical products reclaims that the naphthalene that China's high-temperature-coked industry contains coke(oven)gas adopts washing naphthalene and oil wash naphthalene technology except naphthalene.The main oil wash naphthalene technology of using is except naphthalene now.Oil wash is to arrange except naphthalene workshop section except naphthalene, earlier washing oil (during tar distillation 230-300 ℃ time cut) is carried out primary cooling stage at water cooler, again autocracy wash in the naphthalene tower coke(oven)gas in contain naphthalene and wash≤0.5g/m
3, wash washing oil (being rich oil again) behind the naphthalene and deliver to crude benzol and handle, be sent to cold bulging workshop section tar storehouse at last and go to sell.The naphthalene tower is washed in the special use of traditional method, needs about 1,000,000 yuan of investment, 1000M
3The high-temperature coke furnace gas need consume the 3Kg washing oil except naphthalene.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of can remove the equipment of naphthalene in the high-temperature coke furnace gas in cold workshop section originally at above-mentioned weak point.
Technical solution of the present utility model is: a kind of equipment of removing naphthalene in the high-temperature coke furnace gas, comprise the coke(oven)gas entrance that cooler casing and cooler casing top arrange, and it is characterized in that: be provided with the coke(oven)gas outlet in the water cooler bottom; Be respectively equipped with middle part tar outlet, the outlet of bottom tar in water cooler middle part, bottom; Be provided with the primary cooler that is constituted by recirculated water cooling pipe and condensation liquid bath in the water cooler middle and upper part, be provided with the transverse tube type primary cooler that is constituted by the chilled water pipeline in the water cooler middle and lower part, in water cooler primary cooler and transverse tube type primary cooler above be respectively equipped with upper strata shower nozzle, lower floor's shower nozzle, the condensation liquid bath comprises the groove of annular and the cone-shaped hood on top, is provided with the gas channel that top communicates with the bottom between groove and the cone-shaped hood of annular; Also comprise ammoniacal liquor tower and tar ammonia pump; Middle part tar outlet is connected with ammoniacal liquor tower top, and tar outlet in bottom is connected with ammoniacal liquor tower bottom, and the tar ammonia pump is connected with upper strata shower nozzle, lower floor's shower nozzle, the ammoniacal liquor tower of primary cooler and transverse tube type primary cooler top respectively.
Also comprise the water vapor purging device that is constituted by gas blower, short tube, tar groove in the technical solution of the present utility model, when resistance 〉=0.5KPa, open the water vapor purging device.
The shower nozzle of primary cooler top is to constitute at the shower nozzle that the different circular pipe of diameter distributes in the technical solution of the present utility model, and lower floor's shower nozzle of transverse tube type primary cooler top is to constitute at the shower nozzle that the different circular pipe of diameter distributes.
Adopt the utility model to comprise following processing step except naphthalene:
⑴ introduce water cooler, tower internal pressure :-2000Pa with the high-temperature coke furnace gas from the top of cooler casing;
⑵ high-temperature coke furnace gas downwards through the supercooler middle and upper part by recirculated water cooling pipe and the primary cooler that constitutes, be cooled to 40-35 ℃, the water that condensation forms contains steam, tar gas, naphthalene steam tar and draws water cooler from the middle part of cooler casing, introduces the top of ammoniacal liquor tower by pipeline;
⑶ uncooled coke(oven)gas passes through the transverse tube type primary cooler that is made of the chilled water pipeline downwards in the water cooler, be cooled to 22 ℃ and following, the water that condensation forms contains steam, tar gas, naphthalene steam tar and draws water cooler from the bottom of cooler casing, by the bottom that pipeline is introduced the ammoniacal liquor tower, uncooled, draw water cooler from the bottom of cooler casing except the coke(oven)gas behind the naphthalene;
In water cooler primary cooler above, the transverse tube type primary cooler above be respectively equipped with shower nozzle, this shower nozzle is connected with the ammoniacal liquor tower by pipeline, tar ammonia pump; When resistance 〉=0.5KPa, spray with the hot ammoniacal liquor that contains tar, stop to spray during to resistance＜0.3KPa.
The utility model is owing to the primary cooling stage at traditional high-temperature coke furnace gas, water cooler is transformed, namely on water cooler top, the bottom is respectively equipped with the coke(oven)gas entrance, the coke(oven)gas outlet, at the water cooler middle part, the bottom is respectively equipped with middle part tar outlet, bottom tar outlet, be provided with the primary cooler that is constituted by recirculated water cooling pipe and condensation liquid bath in the water cooler middle and upper part, be provided with the transverse tube type primary cooler that is constituted by the chilled water pipeline in the water cooler middle and lower part, in water cooler primary cooler and transverse tube type primary cooler above be respectively equipped with the upper strata shower nozzle, lower floor's shower nozzle, be equipped with ammoniacal liquor tower and tar ammonia pump again, middle part tar outlet is connected with ammoniacal liquor tower top, bottom tar outlet is connected with ammoniacal liquor tower bottom, the tar ammonia pump respectively with the upper strata shower nozzle of primary cooler and transverse tube type primary cooler top, lower floor's shower nozzle, the ammoniacal liquor tower connects, thereby when the naphthalene, the high-temperature coke furnace gas is introduced from the top of water cooler, make its side's of process one-level primary cooler from top to down, secondary transverse tube type primary cooler, the water that forms in the condensation of one-level primary cooler contains steam, tar gas, naphthalene steam tar is introduced the ammoniacal liquor tower, the tar that the condensation of secondary transverse tube type primary cooler forms is introduced the ammoniacal liquor tower, simultaneously, when resistance 〉=0.5KPa, spray with the hot ammoniacal liquor that contains tar, finally make coke(oven)gas be cooled to 22 ℃ and following, contain the naphthalene index and reach≤0.5g/m
3Thereby, make and produce normal operation.The utility model overcomes traditional method to be needed special-purpose except the naphthalene device with except naphthalene consumption 3Kg washing oil/1000M
3The deficiency of high-temperature coke furnace gas has and need not special-purpose can remove in the high-temperature coke furnace gas characteristics except naphthalene in cold workshop section originally except naphthalene equipment.The utility model is mainly used in the naphthalene that removes of coking industry high-temperature coke furnace gas.
Description of drawings
Fig. 1 is adopted figure by the utility model.
Embodiment
The utility model is different from full system processing method, need not be traditional except naphthalene equipment, except naphthalene technology, but utilize naphthalene under differing temps, containing different solubility in the tar of hot ammoniacal liquor, it is removed, reach the purification manufacturing technique requirent.
During actually operating: first cold process coal gas is 10-15g/m except naphthalene owing to contain naphthalene usually in the coal gas
3Tar gas 80-120g/m
3Water vapor 250-450g/m
3, in effuser and primary cooler process of cooling most water vapors, tar gas, naphthalene steam all can condensation under, wherein most naphthalenes are dissolved in the tar of condensation.Temperature when the distribution of naphthalene in tar depends primarily on operation, the coal gas cooling temperature is lower, be dissolved in the naphthalene of tar just the more, and remaining naphthalene amount is just fewer among the COG.
(1) after the COG cooling, the saturated naphthalene amount that contains of the actual content of naphthalene its dew-point temperature under this pressure and temperature.Because COG is through the second half of primary cooler, minimizing along with the further reduction of temperature and phlegma, naphthalene is separated out and is deposited on the water-cooled tube outer wall, and part naphthalene distillation (can distil during normal temperature) is the solid particle shape and is entrained out by COG, so contains the naphthalene amount among the COG above the saturated naphthalene content under this temperature.Increase the phlegma internal circulating load this moment, must guarantee naphthalene≤0.5g/m among the COG
3, other adds the water vapor purging device, in case during resistance 〉=0.5KPa, between strengthening first cold shell side correspondent section contain the tar ammonia spray flux, second can increase the water vapor purging dynamics.
(2) static decoking tower gas inlet and outlet pipe will add the steaming out mouth, introduces the tar groove by the liquid water seal; The blower inlet place arranges the water vapor purging mouth, but the purging place must separate it with a short tube, can not bring steam into gas blower.
When (3) the COG total pipeline is installed certain obliquity must be arranged, press the pre-determined direction gravity flow to guarantee phlegma.It is 1% that air-breathing main pipe line flows to obliquity along coal gas; It is 0.5% that gas blower front and back gas line flows to obliquity along coal gas, and it is 0.7% that contrary coal gas flows to obliquity; It is 0.7%-1.5% that the sulphur ammonium flows to obliquity to the contrary coal gas of the preceding gas line of crude benzol operation.
(4) can be deposited in the pipeline owing to naphthalene, so at the position that may deposit naphthalene, all establish the steaming out mouth; Be provided with the phlegma export mouth in addition, in order to its phlegma is put into water sealed tank.
Claims (3)
1. an equipment of removing naphthalene in the high-temperature coke furnace gas comprises the coke(oven)gas entrance that cooler casing and cooler casing top arrange, and it is characterized in that: be provided with the coke(oven)gas outlet in the water cooler bottom; Be respectively equipped with middle part tar outlet, the outlet of bottom tar in water cooler middle part, bottom; Be provided with the primary cooler that is constituted by recirculated water cooling pipe and condensation liquid bath in the water cooler middle and upper part, be provided with the transverse tube type primary cooler that is constituted by the chilled water pipeline in the water cooler middle and lower part, in water cooler primary cooler and transverse tube type primary cooler above be respectively equipped with upper strata shower nozzle, lower floor's shower nozzle, the condensation liquid bath comprises the groove of annular and the cone-shaped hood on top, is provided with the gas channel that top communicates with the bottom between groove and the cone-shaped hood of annular; Also comprise ammoniacal liquor tower and tar ammonia pump; Middle part tar outlet is connected with ammoniacal liquor tower top, and tar outlet in bottom is connected with ammoniacal liquor tower bottom, and the tar ammonia pump is connected with upper strata shower nozzle, lower floor's shower nozzle, the ammoniacal liquor tower of primary cooler and transverse tube type primary cooler top respectively.
2. the equipment of naphthalene in the removing high-temperature coke furnace gas according to claim 1 is characterized in that: also comprise the water vapor purging device that is made of gas blower, short tube, tar groove.
3. the equipment of naphthalene in the removing high-temperature coke furnace gas according to claim 1 and 2, it is characterized in that: the upper strata shower nozzle of described primary cooler top is to constitute at the shower nozzle that the different circular pipe of diameter distributes, and lower floor's shower nozzle of transverse tube type primary cooler top is to constitute at the shower nozzle that the different circular pipe of diameter distributes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320084530 CN203144358U (en) | 2013-02-25 | 2013-02-25 | Equipment for removing naphthalene in high-temperature coke-oven gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320084530 CN203144358U (en) | 2013-02-25 | 2013-02-25 | Equipment for removing naphthalene in high-temperature coke-oven gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203144358U true CN203144358U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320084530 Expired - Fee Related CN203144358U (en) | 2013-02-25 | 2013-02-25 | Equipment for removing naphthalene in high-temperature coke-oven gas |
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| CN (1) | CN203144358U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104194841A (en) * | 2014-07-28 | 2014-12-10 | 洛阳龙泽焦化有限公司 | Cooling system used in primary cooler |
| CN104830352A (en) * | 2015-04-29 | 2015-08-12 | 济南冶金化工设备有限公司 | Direct-cooling primary-cooling device in coke oven raw gas chamber and cooling method |
| TWI687509B (en) * | 2019-01-25 | 2020-03-11 | 中國鋼鐵股份有限公司 | Method for cooling coke oven gas and equipment thereof |
-
2013
- 2013-02-25 CN CN 201320084530 patent/CN203144358U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104194841A (en) * | 2014-07-28 | 2014-12-10 | 洛阳龙泽焦化有限公司 | Cooling system used in primary cooler |
| CN104830352A (en) * | 2015-04-29 | 2015-08-12 | 济南冶金化工设备有限公司 | Direct-cooling primary-cooling device in coke oven raw gas chamber and cooling method |
| TWI687509B (en) * | 2019-01-25 | 2020-03-11 | 中國鋼鐵股份有限公司 | Method for cooling coke oven gas and equipment thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20170225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |