CN104556752A - Method for cooling yellow phosphorus furnace slags by air quenching - Google Patents
Method for cooling yellow phosphorus furnace slags by air quenching Download PDFInfo
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- CN104556752A CN104556752A CN201510042676.1A CN201510042676A CN104556752A CN 104556752 A CN104556752 A CN 104556752A CN 201510042676 A CN201510042676 A CN 201510042676A CN 104556752 A CN104556752 A CN 104556752A
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Abstract
The invention discloses a method for cooling yellow phosphorus furnace slags by air quenching, which comprises the following steps: carrying out primary cooling on high-temperature furnace slags discharged from a phosphorus furnace, controlling the temperature of outlet air at 600-900 DEG C, taking two-stage cooling air cooled two times as cooling air, and carrying out secondary cooling on the cooling slags so as to further cool the cooled slags, wherein materials in a secondary cooling mode are in a semi-molten state, the temperature of the materials is about 800-1100 DEG C, the secondary cooling is implemented in two stages, the temperature of a first-stage cooling air is controlled at 600-900 DEG C, hot air cooled in the same time is conveyed to a boiler to generate steam, the temperature of a second-stage cooling air is controlled at 200-400 DEG C, the temperature of the materials at a secondary cooling outlet is 65-100 DEG C, and the cooled furnace slags are conveyed to downstream places. According to the invention, water resources are saved, the energy consumption and the labor cost are relatively reduced, and the production cost of yellow phosphorus is greatly reduced.
Description
Technical field
The invention belongs to chemical technology field, be specifically related to a kind of yellow phosphorus furnace slag wind and quench method of cooling.
Background technology
Along with the scarcity of resource and the progress of technology, the utilization of the slag that phosphorus production produces more and more receives publicity, and is mainly used in building materials at present, the industries such as agrochemical.After the high-temperature molten-state slag produced in phosphorus production process discharges phosphorus stove, adopt the processing mode of water quenching technology at present, namely by slag chilling.High temperature furnace slag bursts apart because of the cause of internal stress, becomes small-particle bits and disperses inside slag bath, so that the shipment of slag, store up process.
But slag can produce a large amount of water vapour also when Water Quenching, bring certain impact to the equipment of yellow phosphorus unit, Architecture and Environment, the heat energy simultaneously inside slag is not used.Water of productive use amount is large, and slag needs drying and processing in later use process, energy consumption and cost of labor higher.Water Quenching Slag needs to grab slag driving and grabs hopper filter part water, and then have bad luck downstream unit material storage yard with automobile, transfer cost is higher.
Summary of the invention
The object of the invention is to overcome above-mentioned shortcoming and the one provided has saved water resources.Energy consumption is relative with cost of labor to be reduced, and the yellow phosphorus furnace slag wind greatly reducing the production cost of yellow phosphorus is quenched method of cooling.
A kind of yellow phosphorus furnace slag wind of the present invention is quenched method of cooling, comprises the steps:
(1) phosphorus stove high temperature furnace slag is out first through once cooling, and outlet wind-warm syndrome controls at 600-900 DEG C, and cooling air adopts the two-step cooling wind of cooling twice, and then slag enters cooling twice and cools further;
(2) when entering cooling twice, material is half melt, temperature of charge about 800-1100 DEG C, cooling twice divides two sections to cool, the temperature of one-step cooling wind controls at 600-900 DEG C, boiler for producing steam is sent to together with the hot blast once cooling out, two-step cooling wind-warm syndrome controls at 200-400 DEG C, and cooling twice outlet mass temperatures is 65-100 DEG C, goes to downstream through cooled slag.
Above-mentioned a kind of yellow phosphorus furnace slag wind is quenched method of cooling, wherein: the hot blast that the hot blast that two-step cooling produces same section of cooler produces can be other device and provides heat energy or for generating.
Above-mentioned a kind of yellow phosphorus furnace slag wind is quenched method of cooling, wherein: slag goes to downstream to be send to production super-fine powder.
The present invention compared with prior art, there is obvious beneficial effect, as can be known from the above technical solutions: the present invention makes the heat energy of high temperature furnace slag be fully used by the heat exchange of cooling twice, change the problem of a large amount of moisture contamination produced in the shrend process of slag simultaneously, site environment improves, water of productive use reduces in a large number, has saved water resources.Slag no longer needs drying and processing in later use process, and production station reduces relatively, and energy consumption is relative with cost of labor to be reduced, and production cost declines, thus greatly reduces the production cost of yellow phosphorus, improves the competitive power that yellow phosphorus is in the field of business.Cooled slag can be directly used in Downstream Products, does not need dry consumption heat energy further; Wind slag of quenching directly can adopt Belt Conveying, thus effectively reduces cost of wheeling.
Below by way of embodiment, further illustrate beneficial effect of the present invention.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention.
Embodiment
embodiment
1
A kind of yellow phosphorus furnace slag wind is quenched method of cooling, comprises the steps:
(1) phosphorus stove high temperature furnace slag is out first through once cooling, and outlet wind-warm syndrome controls at 700 DEG C, and cooling air adopts the two-step cooling wind of cooling twice, and then slag enters cooling twice and cools further;
(2) when entering cooling twice, material is half melt, temperature of charge about 900 DEG C, cooling twice divides two sections to cool, the temperature of one-step cooling wind controls at 700 DEG C, boiler for producing steam is sent to together with the hot blast once cooling out, two-step cooling wind-warm syndrome controls at 350 DEG C, and cooling twice outlet mass temperatures is 90 DEG C, goes to downstream through cooled slag.
embodiment
2
A kind of yellow phosphorus furnace slag wind is quenched method of cooling, comprises the steps:
(1) phosphorus stove high temperature furnace slag is out first through once cooling, and outlet wind-warm syndrome controls at 600 DEG C, and cooling air adopts the two-step cooling wind of cooling twice, and then slag enters cooling twice and cools further;
(2) when entering cooling twice, material is half melt, temperature of charge about 800 DEG C, cooling twice divides two sections to cool, the temperature of one-step cooling wind controls at 600 DEG C, boiler for producing steam is sent to together with the hot blast once cooling out, two-step cooling wind-warm syndrome controls at 200 DEG C, and cooling twice outlet mass temperatures is 65 DEG C, goes to downstream to send to production super-fine powder through cooled slag.
Two-step cooling produce hot blast with the hot blast that one-step cooling produces can be other device provide heat energy or for generate electricity.
embodiment
3
A kind of yellow phosphorus furnace slag wind is quenched method of cooling, comprises the steps:
(1) phosphorus stove high temperature furnace slag is out first through once cooling, and outlet wind-warm syndrome controls at 900 DEG C, and cooling air adopts the two-step cooling wind of cooling twice, and then slag enters cooling twice and cools further;
(2) when entering cooling twice, material is half melt, temperature of charge about 1100 DEG C, cooling twice divides two sections to cool, the temperature of one-step cooling wind controls at 900 DEG C, boiler for producing steam is sent to together with the hot blast once cooling out, two-step cooling wind-warm syndrome controls at 400 DEG C, and cooling twice outlet mass temperatures is 100 DEG C, goes to downstream to send to production super-fine powder through cooled slag.
Two-step cooling produce hot blast with the hot blast that one-step cooling produces can be other device provide heat energy or for generate electricity.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, anyly do not depart from technical solution of the present invention content, the any simple modification equivalent variations done above embodiment according to technical spirit of the present invention and modification, all still belong in the scope of technical solution of the present invention.
Claims (3)
1. yellow phosphorus furnace slag wind is quenched a method of cooling, comprises the steps:
(1) phosphorus stove high temperature furnace slag is out first through once cooling, and outlet wind-warm syndrome controls at 600-900 DEG C, and cooling air adopts the two-step cooling wind of cooling twice, and then slag enters cooling twice and cools further;
(2) when entering cooling twice, material is half melt, temperature of charge about 800-1100 DEG C, cooling twice divides two sections to cool, the temperature of one-step cooling wind controls at 600-900 DEG C, boiler for producing steam is sent to together with the hot blast once cooling out, two-step cooling wind-warm syndrome controls at 200-400 DEG C, and cooling twice outlet mass temperatures is 65-100 DEG C, goes to downstream through cooled slag.
2. a kind of yellow phosphorus furnace slag wind as claimed in claim 1 is quenched method of cooling, wherein: the hot blast that the hot blast that two-step cooling produces same section of cooler produces can be other device and provides heat energy or for generating.
3. a kind of yellow phosphorus furnace slag wind as claimed in claim 1 or 2 is quenched method of cooling, wherein: slag goes to downstream to be send to production super-fine powder.
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| CN201510042676.1A CN104556752B (en) | 2015-01-28 | 2015-01-28 | A kind of yellow phosphorus furnace slag wind is quenched method of cooling |
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| CN201510042676.1A CN104556752B (en) | 2015-01-28 | 2015-01-28 | A kind of yellow phosphorus furnace slag wind is quenched method of cooling |
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| CN104556752A true CN104556752A (en) | 2015-04-29 |
| CN104556752B CN104556752B (en) | 2016-04-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402853A (en) * | 2016-05-30 | 2017-02-15 | 东方电气集团东方锅炉股份有限公司 | System for recovering high-temperature waste heat of bottom slag of circulating fluidized bed (CFB) boiler and storing heat |
| CN112444134A (en) * | 2020-10-19 | 2021-03-05 | 雷波凯瑞磷化工有限责任公司 | Equipment for collecting flue gas of yellow phosphorus furnace slag and utilizing waste heat of flue gas |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07316621A (en) * | 1994-05-18 | 1995-12-05 | Sumitomo Metal Ind Ltd | Treatment of refining slag |
| CN101037193A (en) * | 2007-03-23 | 2007-09-19 | 昆明阳光数字技术股份有限公司 | Technology and device for producing yellow Phosphorus by electric oven process |
| CN101874121A (en) * | 2007-11-26 | 2010-10-27 | 新日本制铁株式会社 | Method and apparatus for treating high-temperature slag |
| CN102645105A (en) * | 2012-05-21 | 2012-08-22 | 邹岳明 | High-temperature material heat recovery system |
| CN202630706U (en) * | 2012-06-01 | 2012-12-26 | 张铭泰 | Yellow phosphorus electric furnace smelting furnace slag waste heat recovery device |
-
2015
- 2015-01-28 CN CN201510042676.1A patent/CN104556752B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07316621A (en) * | 1994-05-18 | 1995-12-05 | Sumitomo Metal Ind Ltd | Treatment of refining slag |
| CN101037193A (en) * | 2007-03-23 | 2007-09-19 | 昆明阳光数字技术股份有限公司 | Technology and device for producing yellow Phosphorus by electric oven process |
| CN101874121A (en) * | 2007-11-26 | 2010-10-27 | 新日本制铁株式会社 | Method and apparatus for treating high-temperature slag |
| CN102645105A (en) * | 2012-05-21 | 2012-08-22 | 邹岳明 | High-temperature material heat recovery system |
| CN202630706U (en) * | 2012-06-01 | 2012-12-26 | 张铭泰 | Yellow phosphorus electric furnace smelting furnace slag waste heat recovery device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402853A (en) * | 2016-05-30 | 2017-02-15 | 东方电气集团东方锅炉股份有限公司 | System for recovering high-temperature waste heat of bottom slag of circulating fluidized bed (CFB) boiler and storing heat |
| CN106402853B (en) * | 2016-05-30 | 2019-05-21 | 东方电气集团东方锅炉股份有限公司 | A kind of recycling CFB Slag high-temperature residual heat and the system for heat accumulation |
| CN112444134A (en) * | 2020-10-19 | 2021-03-05 | 雷波凯瑞磷化工有限责任公司 | Equipment for collecting flue gas of yellow phosphorus furnace slag and utilizing waste heat of flue gas |
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| CN104556752B (en) | 2016-04-27 |
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Address after: 550400 Yinzhan Industrial Park, Weng'an County, Qiannan Buyei and Miao Autonomous Prefecture, Guizhou Province Patentee after: Guizhou Wengfu Chemical Co.,Ltd. Address before: 550400 Yinzhan Township, Weng'an County, Qiannan Buyei and Miao Autonomous Prefecture, Guizhou Province Patentee before: WENGFU P-FOUR (GUIZHOU) LTD. |