CN201334468Y - Coal gas purification and recovery system for calcium carbide furnace - Google Patents
Coal gas purification and recovery system for calcium carbide furnace Download PDFInfo
- Publication number
- CN201334468Y CN201334468Y CNU2009200004331U CN200920000433U CN201334468Y CN 201334468 Y CN201334468 Y CN 201334468Y CN U2009200004331 U CNU2009200004331 U CN U2009200004331U CN 200920000433 U CN200920000433 U CN 200920000433U CN 201334468 Y CN201334468 Y CN 201334468Y
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- China
- Prior art keywords
- calcium carbide
- furnace
- gas purification
- recovery system
- sack cleaner
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Abstract
The utility model provides a coal gas purification and recovery system for a calcium carbide furnace, which comprises a dust removing device and a recovery device, wherein the dust removing device purifies coal gas discharged by a discharging device of the calcium carbide furnace into purified coal gas; the purified coal gas is reutilized after recovered by the recovery device; the dust removing device comprises a spray cooling tower and a bag-type dust remover; the spray cooling tower is used for temperature reduction and primary dust removal for the coal gas; the bag-type dust remover is used for fine dust removal for the coal gas; a gas inlet of the spray cooling tower is communicated with the discharging device of the calcium carbide furnace; a gas outlet of the spray cooling tower is communicated with a gas inlet pipe of the bag-type dust remover; and a gas outlet pipe of the bag-type dust remover is communicated with the recovery device. Thereby, the recovery pressure and the coal gas temperature can be effectively controlled, and the utility model has strong dust pretreatment capability.
Description
Technical field
The utility model relates to a kind of gas purification and retrieving arrangement, is specifically related to a kind of furnace of calcium carbide gas purification and retrieving arrangement.
Background technology
Though present domestic closed calcium carbide furnace has adopted some gas purifications and retrieving arrangement, and is few in number.Also unsatisfactory from system process layout and actual effect, in actual applications, the example of domestic successful is few.The reason that analyze to produce, mainly contain following some: 1. the control accuracy of system parameter is to the influence of smelting technology.Closed calcium carbide furnace be to keep furnace atmosphere in smelting process, control has higher requirement to furnace pressure, general requirement-10Pa～+ 10Pa between, and only wish to keep in the stove malleation for coal-gas recovering, control accuracy just requires higher like this.And the control of pressure realizes that by the adjusting of air quantity in the dust-removal system and blast it is not enough that the operation of existing system is only regulated by blower fan itself, and technology smelting and coal-gas recovering are all had certain influence.2. the regulating and controlling of flue gas cooling temperature.The gas temperature of gas purification and retrieving arrangement and furnace of calcium carbide chimney interface is about about 600 ℃, need the cigarette temperature drop to～230 ℃, the cigarette temperature can not be too high can not be too low, want the operation of adaptive system on the one hand, to prevent separating out of tar on the other hand.Existing system is to establish cooling blower by other, and it is big to adopt variable frequency regulating speed control, this method to invest high power consumption.3. need to increase flue dust pre-treatment ability.Two aspects are arranged here: the one, dust content is big, needs to reduce dust content by pre-dedusting, alleviates the sack cleaner load; The 2nd, extinguish hot grit in the flue dust (red carbon), avoid the scaling loss of cloth bag.4. improve processing set-up, reduce floor space.
The utility model content
The purpose of this utility model is to overcome the prior art deficiency, and a kind of furnace of calcium carbide gas purification recovery system is provided, can more effective control pressure recovery and gas temperature, and have stronger flue dust pre-treatment ability.
To achieve these goals, the utility model provides a kind of furnace of calcium carbide gas purification recovery system, comprise cleaning apparatus and retrieving arrangement, described cleaning apparatus will become purified gas by the gas purification that the discharge equipment of described furnace of calcium carbide is discharged, described purified gas utilizes after being reclaimed by described retrieving arrangement again, wherein, described cleaning apparatus comprises coal gas is cooled and first dust separating spray cooling tower and the coal gas after the first dedusting carried out smart dust separating sack cleaner; The inlet mouth of described spray cooling tower is communicated in the discharge equipment of described furnace of calcium carbide, and its air outlet is communicated in the inlet pipe of described sack cleaner, and the vapor pipe of described sack cleaner is communicated in described retrieving arrangement.
The inlet pipe of described sack cleaner is provided with main air blower, is provided with variable valve on the admission line of described main air blower.
The air outlet of described spray cooling tower is provided with elbow, and the outlet of described elbow is communicated with the inlet pipe of described sack cleaner by described main air blower.
The filter bag of described sack cleaner adopts glass overlay film filter bag.
The bottom of described spray cooling tower is provided with the ship shape ash bucket.
Also be provided with the ash conveying device of nitrogen envelope, described ash conveying device is communicated with the ship shape ash bucket of described spray cooler lower end and the flue-dust retainer of described sack cleaner bottom.
Also be provided with bleeding device, the vapor pipe of described sack cleaner is communicated in described bleeding device and described retrieving arrangement respectively by switching valve.
The blowback wind regime of described sack cleaner adopts the purified gas after the dedusting.
The outside surface of the vapor pipe of described sack cleaner is laid with the thermal insulation material layer.
(60～100g/Nm3) at first enter the spray cooling tower processing of lowering the temperature, and gas temperature is dropped to about 230 ℃ for the high temperature that closed calcium carbide furnace produces aborning (about 600 ℃), dust-laden coal gas.The cool principle of spray cooling tower is to reach the cooling purpose by the atomizing of the water of precision control, evaporation.By gas flow rate in the control tower and residence time, guarantee that water smoke evaporates fully, do not produce mechanical water, dust is non-caked, and wall built-up does not extinguish hot grit in cooling.And under action of gravity, nearly about 50% dust accumulation is discharged by ash bucket to tower bottom, has alleviated the burden of sack cleaner effectively, has prolonged the work-ing life of filtrate, has saved working cost.
Aspect the control furnace pressure, the regulative mode that adopts the preceding pressure regulator valve (accurate adjustment) that is provided with of dedusting main air blower speed control by frequency variation (coarse adjustment) and main air blower to combine, solve furnace pressure precision prescribed height effectively, the difficult problem that speed of response is fast has improved coal-gas recovering rate and quality.Blower fan running simultaneously is steady, system's serviceability height.
Sack cleaner adopts positive-pressure type, has prevented the air suction, has eliminated hidden peril of explosion, and sack cleaner adopts the glass coated filter material, and deashing is thorough and electrostatic-proof function is arranged, and pressure is steady, and outlet coal gas dust content is less than 10mg/Nm
3The coal gas of blowback elegance after purifying, temperature effect is little, and security of system and gas quality are guaranteed.
System architecture is simple, arranges compactness, and temperature drop is little.The vapor pipe of bag-type dust collector, promptly purified gas outlet conduit outside surface lays the thermal insulation material layer, effectively reduces temperature drop, has prevented that tar from separating out, and the transportation problem that reclaims coal gas is solved.
Description of drawings
Fig. 1 is the structural representation of furnace of calcium carbide gas purification recovery system of the present utility model.
Embodiment
The utility model provides a kind of furnace of calcium carbide gas purification recovery system, comprise cleaning apparatus and retrieving arrangement, described cleaning apparatus will become purified gas by the gas purification that the discharge equipment of described furnace of calcium carbide is discharged, described purified gas utilizes after being reclaimed by described retrieving arrangement again, wherein, described cleaning apparatus is divided into two portions, and a part is that coal gas is cooled off the dust separating spray cooling tower except that Wen Bingchu, and the coal gas of another part after to first dedusting carries out smart dust separating sack cleaner.
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is further described.
As shown in Figure 1, be the structural representation of furnace of calcium carbide gas purification recovery system of the present utility model.Dust-laden coal gas is discharged by the chimney 14 of furnace of calcium carbide 15, and the chimney 14 of furnace of calcium carbide is communicated with by the inlet mouth of pipeline with spray cooling tower 1, and pipeline is provided with valve and enters spray cooling tower 1 with control dust-laden coal gas.Dust-laden coal gas enters spray cooling tower by the inlet mouth of spray cooling tower 1, through cooling and dedusting just after, enter positive-pressure cloth bag fly-ash separator 3 by the air outlet of spray cooling tower 1 through pipeline and carry out smart dedusting, in this example, adopt the positive-pressure cloth bag fly-ash separator 3 of three parallel connections.On the inlet pipe of positive-pressure cloth bag fly-ash separator 3, be provided with main air blower 2, on the inlet pipe of main air blower 2, be provided with variable valve 10, to realize accurate adjustment.
The air outlet of spray cooling tower 1 is provided with elbow 9, and the outlet of elbow 9 is communicated with the inlet pipe of positive-pressure cloth bag fly-ash separator 3 by main air blower 2.
Coal gas after the purification is selected to enter retrieving arrangement 6 by switching valve 13 as required and is reclaimed, and preferably the outside surface of the vapor pipe of positive-pressure cloth bag fly-ash separator 3 is laid with the thermal insulation material layer; Or enter bleeding device 5, light a fire by portfire 7 and diffuse.
The bottom of spray cooling tower 1 is connected with ship shape ash bucket 8, and dust gathers in the ship shape ash bucket 8 of tower bottom under the effect of gravity.The bottom of positive-pressure cloth bag fly-ash separator 3 also is provided with ash bucket.The ash conveying device 11 of nitrogen envelope is communicated with the ash bucket of the ship shape ash bucket 8 of spray cooling tower and positive-pressure cloth bag fly-ash separator and is arranged at its below, transports outward after ash being transported to grey storehouse 12 again.
The filter bag of positive-pressure cloth bag fly-ash separator 3 adopts glass overlay film filter bag, to prevent to produce static and the thorough deashing of energy.
In force, the blowback wind regime of positive-pressure cloth bag fly-ash separator 3 adopts the purified gas after the dedusting, as shown in the figure, purified gas is drawn by pipeline, realizes blowback by back blowing machine 4.
Claims (9)
1. furnace of calcium carbide gas purification recovery system, comprise cleaning apparatus and retrieving arrangement, described cleaning apparatus will become purified gas by the dust-laden gas purification that the discharge equipment of described furnace of calcium carbide is discharged, described purified gas utilizes after being reclaimed by described retrieving arrangement again, it is characterized in that described cleaning apparatus comprises lowers the temperature and first dust separating spray cooling tower and the coal gas after the first dedusting carried out smart dust separating sack cleaner to coal gas; The inlet mouth of described spray cooling tower is communicated in the discharge equipment of described furnace of calcium carbide, and its air outlet is communicated in the inlet pipe of described sack cleaner, and the vapor pipe of described sack cleaner is communicated in described retrieving arrangement.
2. furnace of calcium carbide gas purification recovery system as claimed in claim 1 is characterized in that the inlet pipe of described sack cleaner is provided with main air blower, is provided with variable valve on the inlet pipe of described main air blower.
3. furnace of calcium carbide gas purification recovery system as claimed in claim 2 is characterized in that the air outlet of described spray cooling tower is provided with elbow, and the outlet of described elbow is communicated with the inlet pipe of described sack cleaner by described main air blower.
4. furnace of calcium carbide gas purification recovery system as claimed in claim 1 is characterized in that, the filter bag of described sack cleaner adopts glass overlay film filter bag.
5. furnace of calcium carbide gas purification recovery system as claimed in claim 1 is characterized in that the bottom of described spray cooling tower is provided with the ship shape ash bucket.
6. furnace of calcium carbide gas purification recovery system as claimed in claim 5 is characterized in that, also is provided with the ash conveying device of nitrogen envelope, and described ash conveying device is communicated with the ship shape ash bucket of described spray cooler lower end and the flue-dust retainer of described sack cleaner bottom.
7. furnace of calcium carbide gas purification recovery system as claimed in claim 1 is characterized in that, also is provided with bleeding device, and the vapor pipe of described sack cleaner is communicated in described bleeding device and described retrieving arrangement respectively by switching valve.
8. furnace of calcium carbide gas purification recovery system as claimed in claim 1 is characterized in that, the blowback wind regime of described sack cleaner adopts the purified gas after the dedusting.
9. furnace of calcium carbide gas purification recovery system as claimed in claim 1 is characterized in that the outside surface of the vapor pipe of described sack cleaner is laid with the thermal insulation material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200004331U CN201334468Y (en) | 2009-01-07 | 2009-01-07 | Coal gas purification and recovery system for calcium carbide furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200004331U CN201334468Y (en) | 2009-01-07 | 2009-01-07 | Coal gas purification and recovery system for calcium carbide furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201334468Y true CN201334468Y (en) | 2009-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200004331U Expired - Lifetime CN201334468Y (en) | 2009-01-07 | 2009-01-07 | Coal gas purification and recovery system for calcium carbide furnace |
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| CN (1) | CN201334468Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103320563A (en) * | 2013-06-14 | 2013-09-25 | 上海宝锋工程技术有限公司 | Treatment system of furnace top gas of COREX vertical furnace and treatment method thereof |
| CN103712466A (en) * | 2013-12-11 | 2014-04-09 | 宁夏森源重工设备有限公司 | Integrated device of systems for purifying tail gas, discharging smoke in front of furnace, splattering and removing dust for submerged arc furnace |
| CN106440838A (en) * | 2016-11-18 | 2017-02-22 | 沈林彬 | Calcium carbide furnace purification ash gas conveying and incineration device |
| CN108379955A (en) * | 2018-05-03 | 2018-08-10 | 佛山琴笙科技有限公司 | A kind of twin-tub cloth bag vacuum cleaner dust absorption passage mechanism |
| CN109233914A (en) * | 2018-11-20 | 2019-01-18 | 辽宁虹京实业有限公司 | A method of it reducing gas generator and generates coal tar |
| CN113983826A (en) * | 2021-10-30 | 2022-01-28 | 安徽华塑股份有限公司 | Application of atomizing cooler in calcium carbide furnace gas post-treatment |
-
2009
- 2009-01-07 CN CNU2009200004331U patent/CN201334468Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103320563A (en) * | 2013-06-14 | 2013-09-25 | 上海宝锋工程技术有限公司 | Treatment system of furnace top gas of COREX vertical furnace and treatment method thereof |
| CN103712466A (en) * | 2013-12-11 | 2014-04-09 | 宁夏森源重工设备有限公司 | Integrated device of systems for purifying tail gas, discharging smoke in front of furnace, splattering and removing dust for submerged arc furnace |
| CN103712466B (en) * | 2013-12-11 | 2015-09-09 | 宁夏森源重工设备有限公司 | Mineral hot furnace tail gas clean-up stokehold smoke evacuation dedusting loose some dust pelletizing system integration apparatus |
| CN106440838A (en) * | 2016-11-18 | 2017-02-22 | 沈林彬 | Calcium carbide furnace purification ash gas conveying and incineration device |
| CN108379955A (en) * | 2018-05-03 | 2018-08-10 | 佛山琴笙科技有限公司 | A kind of twin-tub cloth bag vacuum cleaner dust absorption passage mechanism |
| CN108379955B (en) * | 2018-05-03 | 2020-11-27 | 桐乡市舒适家具有限公司 | Dust collection channel mechanism of double-barrel cloth bag dust collector |
| CN109233914A (en) * | 2018-11-20 | 2019-01-18 | 辽宁虹京实业有限公司 | A method of it reducing gas generator and generates coal tar |
| CN113983826A (en) * | 2021-10-30 | 2022-01-28 | 安徽华塑股份有限公司 | Application of atomizing cooler in calcium carbide furnace gas post-treatment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091028 |
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| CX01 | Expiry of patent term |