CN104713367A - Discharging method of pot-type calcining furnace - Google Patents
Discharging method of pot-type calcining furnace Download PDFInfo
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- CN104713367A CN104713367A CN201510139488.0A CN201510139488A CN104713367A CN 104713367 A CN104713367 A CN 104713367A CN 201510139488 A CN201510139488 A CN 201510139488A CN 104713367 A CN104713367 A CN 104713367A
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Abstract
The invention discloses a discharging method of a pot-type calcining furnace. When discharging is conducted by the pot-type calcining furnace, an air pumping device is started while a blow-off valve is opened, a plurality of discharging pipes below a material pot are connected to a master pipe, the master pipe is connected with an air pumping pipe for pumping air so that negative pressure can be produced in the master pipe, and air sucked into the discharging pipes can be effectively intercepted. When discharging is conducted by the pot-type calcining furnace, the discharging pipes below the material pot are connected with the air pumping pipe, the air pumping device is used for pumping air, negative pressure is produced in the discharging pipes, and then air is stopped from entering the calcining furnace. By means of the discharging method, air can be effectively prevented from entering the calcining furnace, and therefore the consumption of raw materials can be reduced, the amount of circulating cooling water is reduced, and the effects of saving energy, reducing CO2 emission and protecting the environment can be achieved.
Description
Technical field
the present invention relates to metallurgical industry charcoal element technical field, be specifically related to a kind of discharging method of can-type calcine furnace.
Background technology
Adopt pot type burner calcined petroleum coke to prepare one of Main Means as raw material at carbon industry at present, its production capacity is about 3500Kt/a.Although complete the raw material passed in tank by heat energy in the quirk of existing pot type burner volatile combustion outside tank to heat up, but because pot type burner body is vertical, top has volatile matter eliminating passage to be connected with quirk and smokestack, negative pressure is formed in tank body, tank body cooling section discharge portion is directly discharged on conveying equipment, with conveying equipment coupling part without sealing device, by some air intake tank bodies under suction function, pyrocarbon raw material in tank is caused still to have the petroleum coke of 3-4% to be burnt.When discharge, due to smokestack effect and hot transpiration, enter air in stove from discharge gate to react at the cooling section temperature carbon be about 300-500 DEG C of region and petroleum coke and generate CO2, in up process, CO2 and carbon continue to react and generate CO, finally enter quirk and oxygen from top and react and form CO2 and enter smokestack.The carbon raw materials of high-quality consumes by this process, increases cooling water amount at cooling section combustion heat release, finally forms greenhouse gases and discharges, and being one had not only increased cost but also environmentally hazardous bad process, causes can-type calcine furnace petroleum coke carbonaceous burn out rate to remain high.
Summary of the invention
The invention provides a kind of discharging method of can-type calcine furnace, with the problem that the can-type calcine furnace petroleum coke carbonaceous burn out rate solving prior art existence is too high.
The technical solution adopted for the present invention to solve the technical problems is:
A discharging method for can-type calcine furnace, enter can-type calcine furnace by producing negative pressure in the drainage conduit below the batch can of can-type calcine furnace to block air, concrete grammar step is as follows:
When can-type calcine furnace carries out discharge, while opening blow-off valve, start air extractor, many drainage conduit below batch can are connected to a gathering tube, this gathering tube connects exhaust tube bleed thus produce negative pressure in this gathering tube, thus the air sucking drainage conduit is effectively tackled.
During above-mentioned can-type calcine furnace discharge, the vacuum cavitations in gathering tube is in-10 ~ 0 millimeter of water.
The batch can rate of air sucked in required of above-mentioned can-type calcine furnace is determined according to the drainage conduit sectional dimension of different capacity pot-type stove, and general each batch can speed of evacuation is less than 1 cube m/h.
The present invention, when can-type calcine furnace discharge, the drainage conduit below batch can connects exhaust tube, uses air extractor to bleed, and produces negative pressure thus block air to enter calcining furnace in drainage conduit.Discharging method of the present invention can effectively block air and enter in calcining furnace, thus cuts down the consumption of raw materials and reduce the circulating cooling water yield, can obtain energy-conservation, minimizing CO
2the effect of discharge and protection of the environment.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of can-type calcine furnace of the present invention.
1 batch can, 2 blow-off valves, 3 drainage conduit, 4 gathering tubes, 5 exhaust tubes in figure.
Detailed description of the invention
As shown in the figure, can-type calcine furnace comprises multiple batch can 1, and be all connected with drainage conduit 3 in the below of each batch can 1, drainage conduit 3 is connected with batch can 1 by blow-off valve 2, and every root drainage conduit 3 converges to gathering tube 4.Drainage conduit 3 or gathering tube 4 connect exhaust tube 5, exhaust tube 5 connects air extractor, only can connect exhaust tube 5 in drainage conduit 3, or only on gathering tube 4, connect exhaust tube 5, can also all be connected exhaust tube 5 in drainage conduit 3 with gathering tube 4.
Can-type calcine furnace discharging method of the present invention, can-type calcine furnace is entered to block air by producing negative pressure in the drainage conduit below the batch can of can-type calcine furnace, concrete grammar step is as follows: when can-type calcine furnace carries out discharge, while opening blow-off valve, start air extractor, many drainage conduit below batch can are connected to a gathering tube, this gathering tube connects exhaust tube bleed thus produce negative pressure in this gathering tube, vacuum cavitations in gathering tube is in-10 ~ 0 millimeter of water, each batch can speed of evacuation is less than 1 cube m/h, thus the air sucking drainage conduit is effectively tackled.
Use discharging method of the present invention that the air entered in retort can be made effectively to be contained, facts have proved and carbonaceous scaling loss can be made to be reduced to 1-0.5% from 3-4%, reduce material loss 2-3.5%, per tonly forge rear material and reduce circulating cooling water consumption: 36-54 ton, reduce CO2 emission: 27.5-47 kilogram.
Claims (3)
1. a discharging method for can-type calcine furnace, it is characterized in that entering can-type calcine furnace by producing negative pressure in the drainage conduit below the batch can of can-type calcine furnace to block air, concrete grammar step is as follows:
When can-type calcine furnace carries out discharge, while opening blow-off valve, start air extractor, many drainage conduit below batch can are connected to a gathering tube, this gathering tube connects exhaust tube bleed thus produce negative pressure in this gathering tube, thus the air sucking drainage conduit is effectively tackled.
2. the discharging method of can-type calcine furnace according to claim 1, when it is characterized in that can-type calcine furnace discharge, the vacuum cavitations in gathering tube is in-10 ~ 0 millimeter of water.
3. the discharging method of can-type calcine furnace according to claim 1, is characterized in that the batch can rate of air sucked in required of can-type calcine furnace is determined according to the drainage conduit sectional dimension of different capacity pot-type stove, and general each batch can speed of evacuation is less than 1 cube m/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510139488.0A CN104713367A (en) | 2015-03-29 | 2015-03-29 | Discharging method of pot-type calcining furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510139488.0A CN104713367A (en) | 2015-03-29 | 2015-03-29 | Discharging method of pot-type calcining furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104713367A true CN104713367A (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510139488.0A Pending CN104713367A (en) | 2015-03-29 | 2015-03-29 | Discharging method of pot-type calcining furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN104713367A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0747647A1 (en) * | 1995-06-09 | 1996-12-11 | Chisaki Co., Ltd. | Vertical type calcination kiln |
| CN2504586Y (en) * | 2001-09-29 | 2002-08-07 | 宝山钢铁股份有限公司 | Suction tripper |
| CN101886878A (en) * | 2010-07-19 | 2010-11-17 | 索通发展有限公司 | Discharging method for tank-type calcining furnace |
| CN201882913U (en) * | 2010-07-19 | 2011-06-29 | 索通发展股份有限公司 | Tank type calcining furnace for preparing calcined petroleum coke |
| CN203731869U (en) * | 2014-03-13 | 2014-07-23 | 向阳 | Intermediate bin of feeding and slag discharging device of lead smelting furnace |
-
2015
- 2015-03-29 CN CN201510139488.0A patent/CN104713367A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0747647A1 (en) * | 1995-06-09 | 1996-12-11 | Chisaki Co., Ltd. | Vertical type calcination kiln |
| CN2504586Y (en) * | 2001-09-29 | 2002-08-07 | 宝山钢铁股份有限公司 | Suction tripper |
| CN101886878A (en) * | 2010-07-19 | 2010-11-17 | 索通发展有限公司 | Discharging method for tank-type calcining furnace |
| CN201882913U (en) * | 2010-07-19 | 2011-06-29 | 索通发展股份有限公司 | Tank type calcining furnace for preparing calcined petroleum coke |
| CN203731869U (en) * | 2014-03-13 | 2014-07-23 | 向阳 | Intermediate bin of feeding and slag discharging device of lead smelting furnace |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150617 |
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| RJ01 | Rejection of invention patent application after publication |