CN102748957A - Yellow phosphorus electric stove tail gas recovery system - Google Patents
Yellow phosphorus electric stove tail gas recovery system Download PDFInfo
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- CN102748957A CN102748957A CN2012102426391A CN201210242639A CN102748957A CN 102748957 A CN102748957 A CN 102748957A CN 2012102426391 A CN2012102426391 A CN 2012102426391A CN 201210242639 A CN201210242639 A CN 201210242639A CN 102748957 A CN102748957 A CN 102748957A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a yellow phosphorus electric stove tail gas recovery system, which comprises an emptying regulating valve and the like, a yellow phosphorus electric stove tail gas outlet is connected with a tail gas overall water block, a first scrubber tower is connected with the tail gas overall water block, the emptying regulating valve is connected with the tail gas overall water block, a preceding stage pressure sensor is arranged between the emptying regulating valve and the tail gas overall water block, a front-machine overall water block is connected with the first scrubber tower, a front-machine sealing valve, tail gas compression equipment, a rear-machine sealing valve, a latter-stage pressure sensor and a flow control valve are sequentially arranged between the front-machine overall water block and a rear-machine water block, a second scrubber tower is connected with the rear-machine water block, a tail water block is connected with the second scrubber tower, a gas storage tank is connected with the tail water block, an emptying valve of the gas storage tank is arranged on the gas storage tank, and a control screen is connected with the emptying regulating valve, the front-machine sealing valve, tail gas compression equipment, the rear sealing valve, the latter-stage pressure sensor and the flow control valve. According to the system, a fully automatic control on yellow phosphorus electric stove tail gas is realized, and labor intensity of onsite personnel is reduced.
Description
Technical field
The present invention relates to a kind of exhaust gas recovery system, particularly relate to a kind of yellow phosphorus electric furnace exhaust gas recovery system.
Background technology
China's yellow phosphorus total output occupies first place in the world; The production of yellow phosphorus mainly is electric furnace process, in the phosphorus production process, can produce a large amount of tail gas; CO in the tail gas (carbon monoxide) accounts for 85～90%; No matter still pollute, and see that the CO in the tail gas must recycle on the increase business economic benefit from reducing from energy savings.Existing method for recovering tail gas has several defectives: the one, and manual work or semiautomatic control, automaticity is low, and labour intensity is big, and site environment is abominable, and the Field Force is prone to cause personal injury; The 2nd, the rate of recovery is low, and Artificial Control is difficult for accurately control, causes a large amount of tail gas emptying; The 3rd, pressue device adopts water ring vacuum pump, and power consumption own is big, and because temperature rise; After long-time the use; The fouling of internal gas dust makes its flow more and more littler, and for making must progressively the increase input platform number of vavuum pump of tail gas recycle, power consumption further increases.
Summary of the invention
Technical problem to be solved by this invention provides a kind of yellow phosphorus electric furnace exhaust gas recovery system, and it realizes the Automatic Control of yellow phosphorus electric furnace tail gas, reduces Field Force's labour intensity, and realizes the higher rate of recovery.
The present invention solves above-mentioned technical problem through following technical proposals: a kind of yellow phosphorus electric furnace exhaust gas recovery system; It is characterized in that; It comprises water seal behind sealed valve behind seal valve before total water seal before the emptying control valve, forepressure sensor, the total water seal of tail gas, first aeration tower, machine, the machine, tail gas pressurized equipment, the machine, back stage pressure sensor, flow control valve, the machine, second aeration tower, tail water envelope, air accumulator, air accumulator atmospheric valve, control flow; The total water seal of tail gas is connected with a yellow phosphorus electric furnace tail gas outlet; First aeration tower is connected with the total water seal of tail gas; The emptying control valve is connected with the total water seal of tail gas; The forepressure sensor is between emptying control valve and the total water seal of tail gas, and total water seal is connected with first aeration tower before the machine, sealed valve behind seal valve, tail gas pressurized equipment, the machine before the machine, after stage pressure sensor, flow control valve successively before machine behind water seal always and the machine between the water seal; Water seal is connected behind second aeration tower and the machine; The tail water envelope is connected with second aeration tower, and air accumulator is connected with the tail water envelope, and the air accumulator atmospheric valve is positioned on the air accumulator; Seal valve, tail gas pressurized equipment, back sealed valve, back stage pressure sensor, flow control valve are connected before control flow and emptying control valve, the machine, control flow according to the transducing signal control emptying control valve of forepressure sensor and back stage pressure sensor, machine before seal valve, tail gas pressurized equipment, after sealed valve, flow control valve.
Positive progressive effect of the present invention is: the Automatic Control that can realize yellow phosphorus electric furnace tail gas through the present invention; Can realize the automation recovery of tail gas; Need not manual intervention, promptly reduce Field Force's labour intensity, and through digital control; Realize the higher rate of recovery, and satisfy the demand of phosphorous chemical industry industry energy-saving consumption reduction.
Description of drawings
Fig. 1 is the theory diagram of yellow phosphorus electric furnace exhaust gas recovery system of the present invention.
The specific embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to specify technical scheme of the present invention.
As shown in Figure 1; Yellow phosphorus electric furnace exhaust gas recovery system of the present invention comprises behind sealed valve 9 behind seal valve 7 before total water seal 6 before the total water seal of emptying control valve 2, forepressure sensor 3, tail gas 4, first aeration tower 5, the machine, the machine, tail gas pressurized equipment 8, the machine, back stage pressure sensor 10, flow control valve 11, the machine water seal 12, second aeration tower 13, tail water envelope 14, air accumulator 15, air accumulator atmospheric valve 16, control flow 17; The total water seal 4 of tail gas is connected with a yellow phosphorus electric furnace tail gas outlet 1; First aeration tower 5 is connected with the total water seal 4 of tail gas; Emptying control valve 2 is connected with the total water seal 4 of tail gas; Forepressure sensor 3 is between emptying control valve 2 and the total water seal 4 of tail gas; Total water seal 6 is connected with first aeration tower 5 before the machine; Sealed valve 9, back stage pressure sensor 10, flow control valve 11 are successively before machine behind total water seal 6 and the machine between the water seal 12 behind seal valve 7, tail gas pressurized equipment 8, the machine before the machine, and water seal 12 is connected behind second aeration tower 13 and the machine, and tail water seals 14 and is connected with second aeration tower 13; Air accumulator 15 is connected with tail water envelope 14; Air accumulator atmospheric valve 16 is positioned on the air accumulator 15, and seal valve 7, tail gas pressurized equipment 8, back sealed valve 9, back stage pressure sensor 10, flow control valve 11 are connected before control flow 17 and emptying control valve 2, forepressure sensor 3, the machine, control flow 17 according to the transducing signal control emptying control valve 2 of forepressure sensor 3 and back stage pressure sensor 10, machine before seal valve 7, tail gas pressurized equipment 8, after sealed valve 9, flow control valve 11.
The yellow phosphorus electric furnace exhaust flow is increased to a certain degree; Forepressure sensor 3 is gathered tail gas pressure at the above certain hour of 50Pa, sealed valve 9 behind the preceding seal valve 7 of the machine of opening, the machine, and control flow 17 begins to regulate the rotating speed of tail gas pressurized equipment; Electric furnace outlet tail gas pressure is controlled between 50～250Pa; When after stage pressure sensor 10 gather pressure at 8000Pa after above a period of time, control flow 17 is regulated flow control valves 11, and tail gas is delivered to air accumulator 15.When the exhaust flow sudden change increased above 250Pa, the aperture that control flow is regulated emptying control valve 2 made tail gas from electric furnace pressure controlled.When electric furnace collapses when material, the tail gas from electric furnace flow reduces suddenly, and control flow is sealed valve 9 and flow control valve 11 behind seal valve 7, the machine before the closure plane immediately, prevents that negative pressure from occurring.Under the normal condition, control flow 17 is regulated tail gas pressurized equipment rotating speed according to the pressure size through frequency converter and is guaranteed the stable of tail gas pressure, and the present invention realizes reclaiming automatically control through control flow.Emptying control valve 2 is frequency conversion motorized adjustment gate valve, and opening and closing speed is adjustable, establishes type by cable, can remote auto control also can operate by on-site manual, and valve has aperture demonstration and the output of aperture feedback, and bearing pressure reduction is 2000Pa.Sealed valve employing switching mode fast pneumatic ball valve behind seal valve and the machine gets electric opening before the machine, and dead electricity is closed, and has position feed back signal, and bearing pressure is 10000Pa.Flow control valve adopts the motorized adjustment butterfly valve, and adjustment type is established type by cable, and bearing pressure reduction is 10000Pa, can be arranged to standard-sized sheet, complete shut-down, guarantor position.Control flow is by PLC (Programmable Logic Controller; Programmable logic controller) and frequency converter form; And have the Ethernet interface with the background monitoring communication, have manually, automatically, sudden-stop function, also have the touch-screen man machine operation interface.
The tail gas pressurized equipment adopts air compressor, and non-traditional water ring vacuum pump, and be seamless hermetically-sealed construction, be compared to existing water ring vacuum pump pressurized equipment; Energy consumption significantly reduces, and is example with four yellow phosphorus electric furnaces in certain chemical plant, and every electric furnace need drop into 3 pumps, and general power is about 225KW; Transform the back and use every power of blower fan can reduce to below the 22KW, 203 degree that per hour economize on electricity are to move 24 hours every day; Whole year operation 300 days, 0.45 yuan of calculating of the electricity charge can be saved 657720 yuan.Can realize the Automatic Control of yellow phosphorus electric furnace tail gas through the present invention, reduce Field Force's labour intensity, and, realize the higher rate of recovery, and satisfy the demand that the phosphorous chemical industry industry energy-saving lowers consumption through digital control.
Those skilled in the art can carry out various remodeling and change to the present invention.Therefore, the present invention has covered various remodeling and the change in the scope that falls into appending claims and equivalent thereof.
Claims (1)
1. yellow phosphorus electric furnace exhaust gas recovery system; It is characterized in that; It comprises water seal behind sealed valve behind seal valve before total water seal before the emptying control valve, forepressure sensor, the total water seal of tail gas, first aeration tower, machine, the machine, tail gas pressurized equipment, the machine, back stage pressure sensor, flow control valve, the machine, second aeration tower, tail water envelope, air accumulator, air accumulator atmospheric valve, control flow; The total water seal of tail gas is connected with a yellow phosphorus electric furnace tail gas outlet; First aeration tower is connected with the total water seal of tail gas; The emptying control valve is connected with the total water seal of tail gas; The forepressure sensor is between emptying control valve and the total water seal of tail gas, and total water seal is connected with first aeration tower before the machine, sealed valve behind seal valve, tail gas pressurized equipment, the machine before the machine, after stage pressure sensor, flow control valve successively before machine behind water seal always and the machine between the water seal; Water seal is connected behind second aeration tower and the machine; The tail water envelope is connected with second aeration tower, and air accumulator is connected with the tail water envelope, and the air accumulator atmospheric valve is positioned on the air accumulator; Seal valve, tail gas pressurized equipment, back sealed valve, back stage pressure sensor, flow control valve are connected before control flow and emptying control valve, the machine, control flow according to the transducing signal control emptying control valve of forepressure sensor and back stage pressure sensor, machine before seal valve, tail gas pressurized equipment, after sealed valve, flow control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102426391A CN102748957A (en) | 2012-07-13 | 2012-07-13 | Yellow phosphorus electric stove tail gas recovery system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102426391A CN102748957A (en) | 2012-07-13 | 2012-07-13 | Yellow phosphorus electric stove tail gas recovery system |
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| CN102748957A true CN102748957A (en) | 2012-10-24 |
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| CN2012102426391A Pending CN102748957A (en) | 2012-07-13 | 2012-07-13 | Yellow phosphorus electric stove tail gas recovery system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160333A (en) * | 2013-03-05 | 2013-06-19 | 江苏一同环保工程技术有限公司 | Yellow phosphorus tail gas automation total recovery system |
| CN104155946A (en) * | 2014-07-29 | 2014-11-19 | 湖北亚太能源科技有限公司 | Automatic conveying system for yellow phosphorus electric furnace tail gas |
| CN107986251A (en) * | 2017-11-02 | 2018-05-04 | 武汉东晟捷能科技有限公司 | A kind of yellow phosphorus electric furnace tail gas extract system and yellow phosphoric tail gas air-exhaust method |
| CN108201774A (en) * | 2018-01-25 | 2018-06-26 | 四川蓝海化工（集团）有限公司 | Purifying exhausting gas of yellow phosphorus device |
| CN110986609A (en) * | 2019-12-26 | 2020-04-10 | 四川蓝海化工（集团）有限公司 | Tail gas pressurization system for lime kiln |
| CN111023853A (en) * | 2019-12-26 | 2020-04-17 | 四川蓝海化工（集团）有限公司 | Conveying device for yellow phosphorus tail gas purification system |
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2012
- 2012-07-13 CN CN2012102426391A patent/CN102748957A/en active Pending
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| JPH06123562A (en) * | 1992-10-12 | 1994-05-06 | Kubota Corp | Gas cooling control device |
| CN101251339A (en) * | 2008-04-15 | 2008-08-27 | 陕西西科博尔科技有限责任公司 | SiC synthesis stove gas collection system and gas collection method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160333A (en) * | 2013-03-05 | 2013-06-19 | 江苏一同环保工程技术有限公司 | Yellow phosphorus tail gas automation total recovery system |
| CN103160333B (en) * | 2013-03-05 | 2014-04-16 | 江苏一同环保工程技术有限公司 | Yellow phosphorus tail gas automation total recovery system |
| CN104155946A (en) * | 2014-07-29 | 2014-11-19 | 湖北亚太能源科技有限公司 | Automatic conveying system for yellow phosphorus electric furnace tail gas |
| CN107986251A (en) * | 2017-11-02 | 2018-05-04 | 武汉东晟捷能科技有限公司 | A kind of yellow phosphorus electric furnace tail gas extract system and yellow phosphoric tail gas air-exhaust method |
| CN107986251B (en) * | 2017-11-02 | 2019-09-03 | 武汉东晟捷能科技有限公司 | A kind of yellow phosphorus electric furnace tail gas extract system and yellow phosphoric tail gas air-exhaust method |
| CN108201774A (en) * | 2018-01-25 | 2018-06-26 | 四川蓝海化工（集团）有限公司 | Purifying exhausting gas of yellow phosphorus device |
| CN108201774B (en) * | 2018-01-25 | 2020-10-20 | 四川蓝海化工（集团）有限公司 | Yellow phosphorus tail gas purification device |
| CN110986609A (en) * | 2019-12-26 | 2020-04-10 | 四川蓝海化工（集团）有限公司 | Tail gas pressurization system for lime kiln |
| CN111023853A (en) * | 2019-12-26 | 2020-04-17 | 四川蓝海化工（集团）有限公司 | Conveying device for yellow phosphorus tail gas purification system |
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Application publication date: 20121024 |