CN1461936A - Method of dust removal and utilization of fume of calcium carbide furnace - Google Patents
Method of dust removal and utilization of fume of calcium carbide furnace Download PDFInfo
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- CN1461936A CN1461936A CN02122525A CN02122525A CN1461936A CN 1461936 A CN1461936 A CN 1461936A CN 02122525 A CN02122525 A CN 02122525A CN 02122525 A CN02122525 A CN 02122525A CN 1461936 A CN1461936 A CN 1461936A
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- gas
- furnace
- calcium carbide
- furnace gas
- dedusting
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
A process for dusting and utilizing the fume of calcium carbide furnace includes such steps as dusting the high-temp fume, using it to dry ore, regulating, and using it to cure bricks in curing kiln where the fine dust is deposited under the action of hot wet air. Its advantages are low cost and no secondary pollution.
Description
The present invention relates to calcium carbide burner gas administers and waste reside comprehensive utilization.Calcium carbide burner gas is so that its quantity discharged is big, the dust granularity is little, temperature is high, dust content is high, easy adhesion caking five big characteristics have caused very big difficulty for the furnace gas smoke harnessing.At present, the method for dust removal of calcium carbide burner gas has two kinds of dry method and wet methods.Dry method dust mainly contains single-stage or multistage dedustings such as cyclone dust removal, bag-type dust, settling pocket dedusting, electric precipitation.Its shortcoming is that efficiency of dust collection is low, can not qualified discharge; Or because of after the operation several months, because dust adhesion on fly-ash separator, makes the fly-ash separator operational failure.Wet dedusting mainly contains methods such as water bath dust-removing, water film dedusting, and its shortcoming is the cyanide wastewater that produces severe toxicity, causes water resource pollution.No matter moreover be dry method dust or wet dedusting its remove the thousands of tons of dust that gets off and all need take up an area of stacking, easily form secondary pollution.Existing on the other hand technological investment is big, the running cost height, and enterprise is difficult to bear, and therefore domestic most of enterprises take simple one-level cyclone dust removal or directly are thrown into atmosphere without any dust removal process, have caused very big environmental pollution.
The present invention has overcome the deficiency of above-mentioned technology, dedusting with calcium carbide burner gas, utilize and carbide slag, waste reside comprehensive utilizations such as flyash combine, it is characterized in that: furnace gas is drawn from furnace of calcium carbide [1] furnace roof by induced draft fan [3], enter fly-ash separator [2], the dust that dedusting is got off is delivered to brick field and is made raw materials for production, furnace gas is after induced draft fan [3] pressurization, the gas some enters dryness storehouse [4], utilize high-temperature furnace gas that the ore in the storehouse (coke etc.) is dried, furnace gas after the cooling mixes with the furnace gas of coming from bypass, enter setter [5], feed and enter curing kilns [6] after water or steam are regulated processing.Utilize furnace gas that maintenance is carried out in the adobe made from raw materials such as lime, carbide slag, flyash, mountain sand, produce building material made.Produce under the flocking settling under the damp and hot steam effect of fine dust in the furnace gas in kiln, tail gas is thrown into atmosphere through gas shaft [7], thereby has reached the dedusting and the utilization of calcium carbide burner gas.
Accompanying drawing [1] is a process flow diagram of the present invention.
Embodiments of the invention are:
Add water in the ratio of lime or carbide slag 15～30%, flyash or mountain sand 70～85% and mix and stir, go into to digest warehousingization after 2～4 days, add water and stir and send into brick pressing machine and be pressed into adobe, send into curing kilns with kiln car.Calcium carbide burner gas is drawn from the furnace of calcium carbide furnace roof by induced draft fan, sends into dryness storehouse after the fly-ash separator dedusting, utilizes high-temperature furnace gas that ore is carried out drying.Furnace gas after the cooling is mixed into setter with the furnace gas that comes from bypass, goes into curing kilns after the feeding water for cooling is regulated the adobe in the kiln was carried out maintenance 5～10 days, promptly makes finished product.Produce under the flocking settling under the damp and hot steam effect of fine dust in the furnace gas in kiln, tail gas is by the gas shaft emptying.Thereby reach the dedusting and the utilization of calcium carbide burner gas.
Claims (1)
1, the method of a kind of calcium carbide burner gas dedusting and utilization is characterized in that: by induced draft fan [3] furnace gas is drawn from furnace of calcium carbide [1] furnace roof, enter fly-ash separator [2], the dust that dedusting is got off is delivered to brick field and is made raw materials for production, furnace gas is after induced draft fan [3] pressurization, the gas some enters dryness storehouse [4], utilize high-temperature furnace gas that the ore in the storehouse (coke etc.) is dried, furnace gas after the cooling mixes with the furnace gas of coming from bypass, enter setter [5], feed and enter curing kilns [6] after water or steam are regulated processing, utilize furnace gas to using lime, carbide slag, flyash, maintenance is carried out in the adobe that raw materials such as mountain sand are made, and produces building material made.Produce under the flocking settling under the damp and hot steam effect of fine dust in the furnace gas in kiln, tail gas is thrown into atmosphere through gas shaft [7], thereby has reached the dedusting and the utilization of calcium carbide burner gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02122525A CN1461936A (en) | 2002-06-01 | 2002-06-01 | Method of dust removal and utilization of fume of calcium carbide furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02122525A CN1461936A (en) | 2002-06-01 | 2002-06-01 | Method of dust removal and utilization of fume of calcium carbide furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1461936A true CN1461936A (en) | 2003-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02122525A Pending CN1461936A (en) | 2002-06-01 | 2002-06-01 | Method of dust removal and utilization of fume of calcium carbide furnace |
Country Status (1)
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| CN (1) | CN1461936A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101995168A (en) * | 2010-11-10 | 2011-03-30 | 甘肃众维卓越节能科技有限公司 | Method for recycling flue gas waste heat of calcium carbide furnace |
| CN102654357A (en) * | 2012-05-17 | 2012-09-05 | 五冶集团成都节能工程技术服务有限公司 | Tail gas recycling system for calcium carbide furnace and application method thereof |
| CN101829461B (en) * | 2009-03-13 | 2013-06-05 | 北京柯林柯尔科技发展有限公司 | Method and device for purifying furnace gas generated by producing phosphoric acid through blast furnace process |
| CN103776270A (en) * | 2014-01-27 | 2014-05-07 | 西安科技大学 | Calcium carbide sensible heat recovery equipment and method for calcium carbide furnace |
-
2002
- 2002-06-01 CN CN02122525A patent/CN1461936A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829461B (en) * | 2009-03-13 | 2013-06-05 | 北京柯林柯尔科技发展有限公司 | Method and device for purifying furnace gas generated by producing phosphoric acid through blast furnace process |
| CN101995168A (en) * | 2010-11-10 | 2011-03-30 | 甘肃众维卓越节能科技有限公司 | Method for recycling flue gas waste heat of calcium carbide furnace |
| CN102654357A (en) * | 2012-05-17 | 2012-09-05 | 五冶集团成都节能工程技术服务有限公司 | Tail gas recycling system for calcium carbide furnace and application method thereof |
| CN103776270A (en) * | 2014-01-27 | 2014-05-07 | 西安科技大学 | Calcium carbide sensible heat recovery equipment and method for calcium carbide furnace |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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