CN102853677A - Cooling method for tank-type calcining furnaces - Google Patents
Cooling method for tank-type calcining furnaces Download PDFInfo
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- CN102853677A CN102853677A CN2011101780581A CN201110178058A CN102853677A CN 102853677 A CN102853677 A CN 102853677A CN 2011101780581 A CN2011101780581 A CN 2011101780581A CN 201110178058 A CN201110178058 A CN 201110178058A CN 102853677 A CN102853677 A CN 102853677A
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Abstract
The invention relates to a cooling system, and especially relates to a cooling system for tank-type furnaces, which is used for producing aluminum-used anodes, cathodes, electrodes and carbon graphitization materials in the carbon industry. The method comprises the following steps that: high-temperature cooling water in a steam bleeding box is diverted to each cooling water jacket of a tank-type furnace through a down-flow tube; in the cooling water jacket, the high-temperature cooling water carries out heat exchange with a high-temperature calcined coke; part of water in the cooling water jacket and vaporized steam are conveyed to the steam bleeding box through an up-flow tube; the steam is separated and discharged through the steam bleeding box; cooling water discharged from the cooling water jacket is then fed into a water tank; and water in the water tank is supplied to the steam bleeding box through a circulating pump. The method disclosed by the invention has the advantages that the equipment operation rate is improved, the productivity of a tank-type furnace is improved, and a heat exchanger is high in coefficient of thermal conductivity and high in cooling speed; and the method disclosed by the invention is simple in equipment, low in cost, and extremely easy to be implemented and applied in the process of production.
Description
Technical field
The present invention relates to a kind of cooling means, relate in particular to the can-type calcine furnace cooling means that carbon industry is produced aluminium anode, negative electrode, electrode and charcoal flat band China ink formed material.
Background technology
The main purpose of calcining is moisture content, the fugitive constituent of getting rid of among raw material Jiao, and to make that material shrinks, structure becomes fine and close, form lattice, physical and chemical performance changes.Can-type calcine furnace has its unique advantage to be widely used during owing to calcining charcoal element raw material: can utilize the burnt contained fugitive constituent of raw material, the combustion heating raw material by fugitive constituent does not need external energy; Raw material Jiao is among the batch can, and its heat comes from the fugitive constituent burning of both sides quirk, belongs to indirect heat transfer, and the carbonaceous scaling loss is less.
Again cooling after green coke is calcined through 1200-1350 ℃ of temperature, the method that adopts at present is the water at low temperature circulating cooling, but in actual use, there are the following problems for the method: temperature is up to 1100 ℃ during owing to the material feed box, in through the cooling jacket process, indirectly cooled off by cooling water, the heat that cooling water is taken away is delivered to cooling tower and is cooled off, not only heat can't reclaim, and need to consume some industry water, this is unfavorable for energy-conserving and environment-protective, therefore needs the energy-conserving and environment-protective new technology of a kind of energy of invention high efficiency cooling calcined coke.
Summary of the invention
The present invention is a kind of can-type calcine furnace cooling means that proposes in order to address the above problem, purpose is to reduce ton product hear rate, and can accelerate the rate of temperature fall of calcined coke, and greatly reduce simultaneously the risk that high-temperature material damages belt conveyor, improved operation rate.
For reaching above-mentioned purpose can-type calcine furnace cooling means of the present invention, be made of following step: the high-temperature cooling water of minute vapour case branches in each pot type burner cooling jacket by down-comer, high-temperature cooling water and the heat exchange of high temperature calcined coke in cooling jacket, steam after a part of water in the cooling jacket and the vaporization is delivered to a minute vapour case by tedge, separate discharge by minute vapour case steam, the cooling water that cooling jacket is discharged reenters in the water tank, and circulating pump feeds the water in the water tank in minute vapour case.
Be provided with vapour liquid separator in the described minute vapour case, vapour liquid separator is provided with two-colour fluviograph.
Described two-colour fluviograph and circulating pump interlock.
Advantageous effect of the present invention:
By in cooling jacket, passing into high-temperature cooling water, the high temperature calcined coke is cooled off, changed the method that traditional employing low-temperature cooling water cools off, the cooling water that uses can carry out the secondary utilization or recycle.Also changed simultaneously the phenomenon of conventional method cooling thermal waste, reduced the ton product energy consumption, the vaporization good cooling results, can greatly reduce high temperature calcined coke temperature, prevent that high temperature calcined coke excess Temperature from damaging belt conveyor, improve operation rate, improve the pot type burner production capacity, belong to the energy-conserving and environment-protective new technology.Compare with traditional low-temperature cooling water, not only reclaim amount of heat, and the thermal conductivity factor of heat exchanger is high, cooldown rate is fast; Simultaneously can cooperate one or more can-type calcine furnace to carry out cooling and steam and the water circuit of high-temperature material; Present device is simple, and is with low cost, uses very easily in process of production and implements; The raw material of calcining of the present invention is extensive, comprises petroleum coke, pitch coke, anthracite etc.
Description of drawings
Fig. 1 is schematic flow sheet of the present invention.
Among the figure: 1, divide the vapour case; 2, down-comer; 3, cooling jacket; 4, tedge; 5, valve; 6, water tank; 7, circulating pump; 8, two-colour fluviograph.
The specific embodiment
The below is described in detail by reference to the accompanying drawings to embodiments of the invention, but protection scope of the present invention is not limit by embodiment.
Can-type calcine furnace cooling means of the present invention as shown in Figure 1, be made of following step: the high-temperature cooling water of minute vapour case 1 branches in each pot type burner cooling jacket 3 by down-comer 2, in cooling jacket 3 interior high-temperature cooling waters and the heat exchange of high temperature calcined coke, steam after a part of water in the cooling jacket 3 and the vaporization is delivered to a minute vapour case 1 by tedge 4, separate discharge by minute vapour case 1 steam, the cooling water that cooling jacket 3 is discharged reenters in the water tank 6, circulating pump 7 feeds the water in the water tank 6 in minute vapour case 1, divide in the vapour case 1 and be provided with vapour liquid separator, vapour liquid separator is provided with two-colour fluviograph 8, and two-colour fluviograph 8 is used for measuring and detecting the high-temperature water liquid level; Two-colour fluviograph 8 and circulating pump 7 interlocks, two-colour fluviograph is used for the start and stop of controlled circulation pump.The High-temperature cooling water and steam cycle through down-comer and tedge Natural Circulation.
In the cooling jacket of can-type calcine furnace, pass into high-temperature cooling water, through heat exchange, High-temperature cooling water vapor, utilize the heat of the latent heat of vaporization absorption high temperature calcined coke of water, steam water interface after the intensification is by gas-liquid separator separates, and steam can be used for steam user or other UTILIZATION OF VESIDUAL HEAT IN.Suppose that flow is that the cooling water of 1kg/h heated up 10 ℃ before vaporization, the hot-fluid that can take away is 42kJ/h; Be increased to 105 ℃ and flow is the high-temperature cooling water of 1kg/h from 95 ℃, the hot-fluid of taking away is 2272kJ/h, and the latter is the former 54 times.
Claims (3)
1. can-type calcine furnace cooling means, it is characterized in that being made of following step: the high-temperature cooling water of minute vapour case branches in each pot type burner cooling jacket by down-comer, high-temperature cooling water and the heat exchange of high temperature calcined coke in cooling jacket, steam after a part of water in the cooling jacket and the vaporization is delivered to a minute vapour case by tedge, separate discharge by minute vapour case steam, the cooling water that cooling jacket is discharged reenters in the water tank, and circulating pump feeds the water in the water tank in minute vapour case.
2. can-type calcine furnace cooling means according to claim 1 is characterized in that being provided with vapour liquid separator in minute vapour case, and vapour liquid separator is provided with two-colour fluviograph.
3. can-type calcine furnace cooling means according to claim 2 is characterized in that the interlock of two-colour fluviograph and circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101780581A CN102853677A (en) | 2011-06-29 | 2011-06-29 | Cooling method for tank-type calcining furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101780581A CN102853677A (en) | 2011-06-29 | 2011-06-29 | Cooling method for tank-type calcining furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102853677A true CN102853677A (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2011101780581A Pending CN102853677A (en) | 2011-06-29 | 2011-06-29 | Cooling method for tank-type calcining furnaces |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107058763A (en) * | 2017-05-27 | 2017-08-18 | 郑州大学 | One kind reclaims magnesium vapor crystallization residual heat using device in Smelting magnesium |
| CN107345768A (en) * | 2016-05-06 | 2017-11-14 | 沈阳铝镁设计研究院有限公司 | A kind of burnt cooling of pot type burner high-temperature calcination and afterheat utilizing system and application method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0596728A1 (en) * | 1992-11-04 | 1994-05-11 | Topy Kogyo Kabushiki Kaisha | Apparatus for preventing dust accumulation in an exhaust duct of an electric furnace |
| CN2284372Y (en) * | 1996-11-19 | 1998-06-17 | 周大成 | Energy saving device of heating furnace |
| CN201600019U (en) * | 2009-11-23 | 2010-10-06 | 北京明诚技术开发有限公司 | Evaporation cooling brief system of rolling steel walking reheating furnace water beam |
| CN102012014A (en) * | 2010-11-04 | 2011-04-13 | 袁长胜 | Method and special device for comprehensively utilizing excess heat of high-temperature gas in pipeline |
-
2011
- 2011-06-29 CN CN2011101780581A patent/CN102853677A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0596728A1 (en) * | 1992-11-04 | 1994-05-11 | Topy Kogyo Kabushiki Kaisha | Apparatus for preventing dust accumulation in an exhaust duct of an electric furnace |
| CN2284372Y (en) * | 1996-11-19 | 1998-06-17 | 周大成 | Energy saving device of heating furnace |
| CN201600019U (en) * | 2009-11-23 | 2010-10-06 | 北京明诚技术开发有限公司 | Evaporation cooling brief system of rolling steel walking reheating furnace water beam |
| CN102012014A (en) * | 2010-11-04 | 2011-04-13 | 袁长胜 | Method and special device for comprehensively utilizing excess heat of high-temperature gas in pipeline |
Non-Patent Citations (1)
| Title |
|---|
| 郑全等: "焦炉使用汽化冷却系统回收余热的实践", 《节能技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345768A (en) * | 2016-05-06 | 2017-11-14 | 沈阳铝镁设计研究院有限公司 | A kind of burnt cooling of pot type burner high-temperature calcination and afterheat utilizing system and application method |
| CN107058763A (en) * | 2017-05-27 | 2017-08-18 | 郑州大学 | One kind reclaims magnesium vapor crystallization residual heat using device in Smelting magnesium |
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Application publication date: 20130102 |