CN102721030A - Comprehensive recycling system of heat energy of yellow phosphorus furnace and working method thereof - Google Patents
Comprehensive recycling system of heat energy of yellow phosphorus furnace and working method thereof Download PDFInfo
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- CN102721030A CN102721030A CN2012102234917A CN201210223491A CN102721030A CN 102721030 A CN102721030 A CN 102721030A CN 2012102234917 A CN2012102234917 A CN 2012102234917A CN 201210223491 A CN201210223491 A CN 201210223491A CN 102721030 A CN102721030 A CN 102721030A
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention relates to a comprehensive recycling system of heat energy of a yellow phosphorus furnace for phosphorus. The comprehensive recycling system comprises a slag heat energy recycling furnace, at least one primary heat exchanger, a combustion furnace, at least one secondary heat exchanger, a washing tower and a phosphorus collecting trough, wherein the slag heat energy recycling furnace is used for utilizing high-temperature slag output by the yellow phosphorus furnace to generate saturated steam by heat exchange and store the saturated steam in a steam drum, and a generating system which generates electricity by means of the steam drum is connected with a power source input end of the yellow phosphorus furnace; the at least one primary heat exchanger is used for utilizing hot tail gas discharged by the yellow phosphorus furnace to heat water; and the combustion furnace is used for combusting the hot tail gas discharged out of the primary heat exchanger so as to heat hot water output through the steam drum to generate the saturated steam and then send back the steam drum. The at least one secondary heat exchanger is used for utilizing phosphorus steam discharged out of the yellow phosphorus furnace to heat water output through the primary heat exchanger to generate saturated steam and then send back the steam drum; the washing tower is connected with a phosphorus steam outlet of the secondary heat exchanger and used for washing the phosphorus steam, and the phosphorus collecting trough is connected with the primary heat exchanger, the secondary heat exchanger and a discharging port positioned at the bottom of the washing tower.
Description
Technical field
The present invention relates to the technical field of high temperature furnace slag heat recovery, specifically is a kind of yellow phosphorus stove heat energy comprehensive reutilization system and method for work thereof.
Background technology
Phosphorus production is the highly energy-consuming industry, and 1 ton of yellow phosphorus of every production will consume 1.4 ten thousand kilowatt hours electricity and 1.6 tons of carbon at least, and Chinese existing annual capacity is 800,000 tons.To produce a large amount of high temperature furnace slags in the phosphorus production process.Equally, also there are a large amount of high temperature furnace slags in industries such as steel-making, aluminium metallurgy, copper metallurgy.
Therefore, how recycling the heat energy of high temperature furnace slag, reducing the power consumption of resource production such as yellow phosphorus and metallurgy industry etc., significantly reduce greenhouse gas emission with corresponding, is China's urgent problem.
Chinese patent document CN101881432A discloses a kind of high temperature furnace slag heat energy utilization system that is suitable for generating high-pressure saturated steam; Chinese patent document CN 101543832 discloses a kind of yellow phosphorus stove slag and has utilized system, and Chinese patent document CN 101543831 discloses a kind of yellow phosphorus stove slag energy recovery stove; These systems have solved the recycling of high temperature furnace slag heat energy.
In production practices, the yellow phosphorus stove generally adopts electric furnace, and power consumption is bigger; Except producing the high temperature slag, also can produce high temperature phosphorous steam and phosphorus furnace exhaust gas during electric furnace work; Fuel gas in the phosphorus furnace exhaust gas (like carbon monoxide etc.) content is higher.In existing phosphorus production process, these high temperature phosphorous steam and phosphorus furnace exhaust gas directly discharge, and phosphorus and heat energy thereof are not recycled.
How a kind of heat energy that can reclaim high temperature phosphorous slag being provided, can making full use of high temperature phosphorous steam and phosphorus furnace exhaust gas again, is the technical problem that this area will solve.
Summary of the invention
Technical problem to be solved by this invention provides a kind of simple in structure, can reclaim the heat energy of high temperature phosphorous slag, high temperature phosphorous steam and phosphorus furnace exhaust gas, can reclaim the high temperature furnace slag heat reclaiming system and the method for work thereof of the phosphorus in the high temperature phosphorous steam again.
For solving the problems of the technologies described above, high temperature furnace slag heat reclaiming system provided by the invention comprises:
Yellow phosphorus stove slag energy recovery stove; Be used for utilizing the high temperature furnace slag heat exchange of yellow phosphorus stove output to generate saturated vapor and be stored in a drum, utilize the power output end of the electricity generation system that the saturated vapor in this drum generates electricity to link to each other with the power input of said yellow phosphorus stove;
At least one first-class heat exchanger, the hot exhaust gas that is used to utilize the yellow phosphorus fire grate to go out adds hot water;
Combustion furnace, the said hot exhaust gas of discharging from said first-class heat exchanger through burning, with heating from the hot water of said drum output to generate saturated vapor, send said drum then back to;
At least one secondary heat exchanger is used to utilize phosphorus Steam Heating that the yellow phosphorus fire grate goes out from the water of said first-class heat exchanger output and generate saturated vapor, sends into said drum then;
Scrubbing tower links to each other with the phosphorus steam (vapor) outlet of said secondary heat exchanger, is used to wash said phosphorus steam;
Receive the phosphorus groove, link to each other with the bottom drain of described one-level, secondary heat exchanger and scrubbing tower.
Said receipts phosphorus groove links to each other with the washing water inlet of said scrubbing tower through a water circulating pump;
The hot water that saturated vapor generates after electricity generation system is sent said first-class heat exchanger and/or said combustion furnace back to.
Yellow phosphorus stove heat energy comprehensive reutilization of the present invention system also comprises: be used for the suction fresh air air dryer, be used to heat the dry air of this air dryer output air heat exchanger, be used for the heated drying air that this air heat exchanger generates is sent into the blower fan of said combustion furnace; The exhaust port of said combustion furnace links to each other with the thermal source gas access of said air heat exchanger, to heat said dry air.Adopt dry air to send into said combustion furnace, can avoid humid air and have after corrosive said hot exhaust gas mixes, corrode said combustion furnace.Simultaneously, because the temperature of said hot exhaust gas and heated drying air is all higher, its mixed combustion calorific value is higher, is beneficial to the saturated vapor that generates higher temperature.
Said yellow phosphorus stove slag energy recovery stove comprises: cylindrical shell is provided with the fire grate that is used for said high temperature furnace slag is delivered to from the feeding mouth of this cylindrical shell discharging opening that axially runs through this cylindrical shell in this cylindrical shell; The opening at said cylindrical shell top is provided with heat exchanger; The feeding mouth of said cylindrical shell is provided with a pair of particle roller that is used for charging and the said high temperature furnace slag of cooled and solidified; This is provided with drapery panel and the distribute roll that adjacent parallel is provided with to particle roller below; Be ground into graininess after being used for to fall into the further cooled and solidified of said high temperature furnace slag between this drapery panel and the distribute roll, and this granule materials is delivered on the said fire grate.Wherein, heat exchanger is used for the high temperature furnace slag waste heat recovery; Described particle roller, drapery panel and distribute roll constitute a cooling particle device; Be used for the cooled and solidified high temperature furnace slag and generate particulate material; Prevent material caking when cooling; Generate simultaneously that the area of dissipation of material significantly increases after the particulate material, the waste heat that is beneficial to material fully, discharge fast is beneficial to the rate of recovery that improves heat energy.
Said drapery panel is suitable for letting in air, and the back side of drapery panel is distributed with a plurality of air-blast nozzles that are used for the said high temperature furnace slag air blast on drapery panel.
Said drapery panel tilt distribution and its upper surface are serrated face; Or this drapery panel is that radian is 45-90 °, the arc that vertically is provided with, and it is used to carry on the concave surface of said high temperature furnace slag heat and is distributed with sawtooth, the bottom of the contiguous said distribute roll of the bottom margin of arc; Be distributed with tapered protrusion on the cylinder of said distribute roll, be used for said fire grate is pulverized and delivered to the material on this drapery panel.
Said drapery panel is provided with serrated face, is beneficial to the area of dissipation that increases said high-temperature material, is beneficial to it and further cools off fast, solidifies; Tapered protrusion can prevent that said high-temperature material is bonded on this convexity.Being used of distribute roll and drapery panel is beneficial to further fragmentation material, further increases area of dissipation, is beneficial to abundant, the release fast of waste heat of material, is beneficial to the rate of recovery that improves heat energy.
As the scheme of optimizing, in the said cylindrical shell, in the downstream of said distribute roll and above said fire grate, be provided with material scraping plate, so that the material on the said fire grate is evenly distributed, the waste heat that is beneficial to material evenly, fully, discharge fast is beneficial to the rate of recovery that improves heat energy.Said material scraping plate is suitable for letting in air, and the hot blast that passes the high temperature furnace slag on the said drapery panel successively is suitable for also getting in the said heat exchanger adjacent with this material scraping plate through this material scraping plate; The exhaust outlet that being used to of this heat exchanger discharged the heat exchange air links to each other with described each air-blast nozzle through blower fan, to form the closed cycle of heat exchange air, avoids heat energy to escape to air.
Scheme as further optimization; The aperture distribution at said cylindrical shell top has a plurality of; The heat exchanger tube that is used for transporting water in the heat exchanger on each opening is connected successively, and the water that temperature is lower is imported from the inlet of the heat exchanger of the discharging opening of contiguous said cylindrical shell, because the heat exchanger tube temperature in each heat exchanger on the flow direction of said water raises step by step; Thereby be suitable for making said water by heating step by step, and reach higher temperature; The water out of heat exchanger is used to connect other heat transmission equipments, is used to produce hot water, hot-air or supersaturated vapor etc.
As the scheme of optimizing; The exhaust outlet that being used to of each heat exchanger top discharged the heat exchange air is connected with circulating gas pipe respectively; Each circulating gas pipe is passed the sidewall of said cylindrical shell and is extended between the upper and lower layer of band that said cylindrical shell is interior, the gas outlet of each circulating gas pipe is in said fire grate and the bottom surface of the contiguous said epipelagic zone in each gas outlet and setting up, is suitable for the cycling hot air-flow that upwards penetrates said epipelagic zone and act on said heat exchanger with formation in cylindrical shell.Adopt the cycling hot air-flow to act on corresponding heat exchanger, avoided the loss of hot-air, mend the cool exterior air heating simultaneously, further improved the rate of recovery of heat energy.
Said particle roller and distribute roll are the jacket type chill roll; Between the heat exchanger tube in a pair of heat exchanger that chuck portion in this particle roller and the distribute roll is connected on and the discharging opening of said cylindrical shell is contiguous; Or; The bottom coil pipe of the heat exchanger tube in one or more heat exchangers of the chuck portion of said particle roller and distribute roll and the discharging opening of contiguous said cylindrical shell is parallelly connected; Will send into one or more heat exchangers of the discharging opening of contiguous said cylindrical shell through the heat transferring medium of particle roller preheating; And then improve the water temperature in these one or more heat exchangers, be beneficial in one or more heat exchangers of the feeding mouth that is close to said cylindrical shell and generate saturated vapor.
The inwall of said particle roller is provided with along the spiral heat exchange tube axial distribution of this particle roller, that be used to heat said water, and this spiral heat exchange tube is that opening is welded on the semicircle pipe on the said particle roller inwall; Spiral heat exchange tube adopts the semicircle pipe to process, and the water in the heat exchanger tube is directly contacted with the inwall of particle roller, is beneficial to further raising heat energy conversion efficient and heat energy recovery rate.
Further, described particle roller two ends central authorities are respectively equipped with into liquid, fluid hollow rotating shaft; This to hollow rotating shaft respectively bearing be matched with on the pair of bearing, and between the heat exchanger tube in a pair of heat exchanger that the spiral heat exchange tube in the described particle roller is connected on hollow rotating shaft through this and the discharging opening of said cylindrical shell is contiguous; Or; The bottom coil pipe of the heat exchanger tube in one or more heat exchangers of said spiral heat exchange tube and the discharging opening of contiguous said cylindrical shell is parallelly connected; Will send into one or more heat exchangers of the discharging opening of contiguous said cylindrical shell through the heat transferring medium of particle roller preheating; And then improve the water temperature in these one or more heat exchangers, be beneficial in one or more heat exchangers of the feeding mouth that is close to said cylindrical shell and generate saturated vapor.
Go into liquid, the outlet end of said spiral heat exchange tube link to each other with said inner port of going into liquid, fluid hollow rotating shaft respectively; Or; The outlet end of said spiral heat exchange tube links to each other with the inner port of said hollow rotating shaft; The liquid inlet of said spiral heat exchange tube is in this particle roller and extend to contiguous said fluid hollow rotating shaft, so that the water that newly gets in this particle roller gets into said spiral heat exchange tube after the preheating in this particle roller, further heats; And then the heat exchange stroke of prolongation water, improve heat exchange efficiency.
For further improving the rate of recovery of heat energy, be provided with a plurality of shifting boards that distribute alternately in the said cylindrical shell and in said epipelagic zone below, a cavity that constitutes between the adjacent a pair of shifting board and a said heat exchanger distribute up and down relatively; The air of the exhaust outlet at described heat exchanger top output is suitable for delivering in the said cavity under this heat exchanger through said circulating gas pipe.
Further, excessive for preventing thermal current and material, the feeding mouth of said cylindrical shell is on the inboard end face in said cylindrical shell end, the closed-end of the feeding mouth of contiguous this cylindrical shell.
Said high temperature furnace slag is a yellow phosphorus furnace slag; Owing to be the bigger block of volume after traditional yellow phosphorus furnace slag piles up crystallisation by cooling; This block integral hardness is near granite; Generate the particulate material (particle diameter of particulate material after adopting said cooling particle device with the yellow phosphorus furnace slag cooled and solidified of high temperature attitude, particle; By decisions such as the protruding shape of the roll surface of the double-roll crusher of selecting for use, density) so that, realized its recycling as particulate material for building.
The discharging opening of cooling particle device and the vertical range of said fire grate are 0.5-1m, in the blanking process, to realize the air cooling, to generate particulate material, prevent that the yellow phosphorus furnace slag regelation from becoming piece.
As further preferred scheme, said heat exchanger is the vertical pipe type heat exchanger, is provided with the spiral wind deflector that distributes up and down in this heat exchanger, and the vertical heat exchanger tube in the heat exchanger interts on said spiral wind deflector.The spiral wind deflector stroke of hot blast in this heat exchanger that be suitable for extending increases the time of contact of hot blast and heat exchanger tube, and then further improves the rate of recovery of heat energy.
The method of work of above-mentioned high temperature furnace slag heat reclaiming system; Comprise: yellow phosphorus stove slag energy recovery stove utilizes the high temperature furnace slag heat exchange of yellow phosphorus stove output to generate saturated vapor and is stored in the drum; Saturated vapor in this drum is sent into electricity generation system generating; This electricity generation system is supplied power to said yellow phosphorus stove, as the accessory power supply of yellow phosphorus stove; The main power source of this yellow phosphorus stove is city's electrical network; The hot exhaust gas that the yellow phosphorus fire grate goes out is sent into first-class heat exchanger, to heat the water of said electricity generation system output; The phosphorus steam that the yellow phosphorus fire grate goes out is sent into secondary heat exchanger, from the water of said first-class heat exchanger output and generate saturated vapor, sends into said drum with heating then; The phosphorus steam that the scrubbing tower washing is discharged from said secondary heat exchanger; Send into a receipts phosphorus groove from the phosphorus water mixed liquid that the bottom drain of described one-level, secondary heat exchanger and scrubbing tower is discharged; Water in the said receipts phosphorus groove is sent into said scrubbing tower through a water circulating pump and is washed; Send into combustion furnace burning from the said hot exhaust gas that said first-class heat exchanger is discharged, to heat from the hot water of said drum output and/or the water of said electricity generation system output, to generate saturated vapor and to send said drum back to; Fresh air is sent into the air heat exchanger heating after the air dryer drying, to generate the heated drying air; This heated drying air is sent into said combustion furnace through blower fan, with said hot exhaust gas mixed combustion; The tail gas of said combustion furnace discharging is sent into said air heat exchanger, to heat said dry air.
Said phosphorus steam is sent into said secondary heat exchanger behind a dust arrester; This vapour dust arrester comprises: column-shaped barrel; Be located at first flange-interface that is used to import phosphorus steam on this column-shaped barrel top; Be located at second flange-interface that is used to export said phosphorus steam on the sidewall of this column-shaped barrel; Be located at the drum type brake filter screen in this column-shaped barrel; Drive the driving mechanism of this drum type brake filter screen around its central shaft rotation; Axially be located in the said drum type brake filter screen and the bottom interior wall setting of contiguous this drum type brake filter screen be used for inwall nitrogen-blow to this drum type brake filter screen to remove the air jet pipe of dust; Axially be located at the wool yarn plate that is used to brush away the dust on the said drum type brake filter screen in the said drum type brake filter screen outside; Be connected in the obconic conically shaped that is of said column-shaped barrel lower end; Be located at the blanking seal valve of this conically shaped lower end; Be located at the storage chamber of this first blanking seal valve bottom; Be located at the discharging seal valve of this storage chamber bottom; Be located at the heater in this storage chamber; Be located at nitrogen air inlet pipe and air exhaust duct on the storage chamber; And be located at being suitable on said nitrogen air inlet pipe and the air exhaust duct respectively and open and close nitrogen intake valve and air exhaust-valve simultaneously.
Be distributed with fumarole down on the air jet pipe.
The one end sealing of said drum type brake filter screen, the other end is the open type port.
Said driving mechanism comprises motor and the reduction box that is connected with this drive of motor, and the center of the hermetic terminal of said drum type brake filter screen is provided with a rotating shaft, and the output shaft of this rotating shaft and said reduction box is in transmission connection.
Said wool yarn plate is located at the outside of the middle and lower part of said drum type brake filter screen.Said second flange-interface and said open type port are coaxially set.
The method of work of said dust arrester comprises the steps:
A, in said column-shaped barrel, conically shaped and storage chamber, charge into nitrogen to discharge air; Closed then blanking seal valve, discharging seal valve, nitrogen intake valve and air exhaust-valve;
B, phosphorus steam is sent into column-shaped barrel through first flange-interface, get into the drum type brake filter screen then downwards, export from second flange-interface then;
The said drum type brake filter screen of drive mechanism is around its central shaft rotation, and air jet pipe ejection high pressure nitrogen blows off the dust that is attached on the said drum type brake filter screen to said conically shaped; The dust brush that the wool yarn plate will be attached on the said drum type brake filter screen drops down onto said conically shaped;
C, the Dust Capacity in said conically shaped reach setting value and open said blanking seal valve; In said conically shaped; Heater heats the dust in the storage chamber then; Make the phosphorus that condenses on the dust evaporate into phosphorus steam, after the rising of phosphorus steam gets into said drum type brake filter screen again, through the output of second flange-interface; By the time when without phosphorus steam was exported in the storage chamber, said blanking seal valve was closed, closes heater;
D draws off said dust by the time after the storage chamber cooling, open said discharging seal valve;
E, closed discharging seal valve are opened nitrogen intake valve and air exhaust-valve, drain the air in the storage chamber for use; Repeat above-mentioned steps C.
The present invention has positive effect with respect to prior art: high temperature furnace slag heat reclaiming system of the present invention; Waste heat and the heat energy in high temperature phosphorous steam and the phosphorus furnace exhaust gas and the generating of yellow phosphorus furnace slag have effectively been reclaimed on the one hand; The electric energy that generates is sent the yellow phosphorus stove back to and is used (the yellow phosphorus stove is electric furnace); Can significantly lower consumption can, the discharging of energy savings and a large amount of greenhouse gases of corresponding minimizing; On the other hand, also reclaimed the phosphorus in the high temperature phosphorous steam, it has good economic benefits and social benefit.Adopt filter cylinder (being the drum type brake filter screen) with after the dedusting of phosphorus steam, to send into heat exchanger and scrubbing tower successively, the bottom discharge mouth of heat exchanger and scrubbing tower immerses downwards to be received in the phosphorus groove, realizes the recovery of high-purity phosphorus.
Description of drawings
Fig. 1 is the structural representation of high temperature furnace slag heat reclaiming system among the embodiment 1;
Fig. 2 is the structural representation of said yellow phosphorus stove slag energy recovery stove;
Fig. 3 is the roll surface structural representation of said double-roll crusher;
Fig. 4 is the cross-sectional view of the particle roller in the said double-roll crusher;
Fig. 5 is the cross-sectional view of the particle roller among the embodiment 2;
Fig. 6 is the another kind of structural representation of said yellow phosphorus stove slag energy recovery stove;
Fig. 7 is the another kind of structural representation of said high temperature furnace slag heat reclaiming system;
Fig. 8 is the structural representation of the said dust arrester among Fig. 7;
Fig. 9 is the A-A profile of Fig. 8.
The specific embodiment
See Fig. 1, the high temperature furnace slag heat reclaiming system of present embodiment comprises:
Yellow phosphorus stove slag energy recovery stove a; Be used for utilizing the high temperature furnace slag heat exchange of yellow phosphorus stove b output to generate saturated vapor and be stored in a drum 9, utilize the power output end of the electricity generation system c that the saturated vapor in this drum 9 generates electricity to link to each other with the power input of said yellow phosphorus stove b;
First-class heat exchanger d, the hot exhaust gas that is used to utilize the yellow phosphorus fire grate to go out adds hot water;
Combustion furnace e, the said hot exhaust gas of discharging from said first-class heat exchanger through burning, with heating from the hot water of said drum output to generate saturated vapor, send said drum then back to;
The secondary heat exchanger f of two series connection is used to utilize phosphorus Steam Heating that the yellow phosphorus fire grate goes out from the water of said first-class heat exchanger output and generate saturated vapor, sends into said drum then;
Scrubbing tower g links to each other with the phosphorus steam (vapor) outlet of the said secondary heat exchanger of final stage, is used to wash said phosphorus steam;
Receive phosphorus groove p, link to each other with the bottom drain of described one-level, secondary heat exchanger and scrubbing tower.
Said receipts phosphorus groove p links to each other with the washing water inlet of said scrubbing tower g through a water circulating pump i; The hot water that saturated vapor generates behind electricity generation system c is sent said first-class heat exchanger d and/or said combustion furnace e back to;
Air dryer j is used for the suction fresh air;
Air heat exchanger k is used to heat the dry air of this air dryer output;
Blower fan m is used for the heated drying air that this air heat exchanger generates is sent into said combustion furnace e; The exhaust port of said combustion furnace e links to each other with the thermal source gas access of said air heat exchanger k, to heat said dry air.
Receive phosphorus groove p and link to each other, be used for finished product packing with receiving phosphorus groove n.
Said first-class heat exchanger d also can adopt a plurality of of series connection.
The concrete structure principle of yellow phosphorus stove slag energy recovery stove a; Can adopt being suitable among the Chinese patent document CN101881432A to generate the high temperature furnace slag heat energy utilization system of high-pressure saturated steam; Or the yellow phosphorus stove slag among the Chinese patent document CN 101543832 utilizes system; Or the yellow phosphorus stove slag energy recovery stove among the Chinese patent document CN101543831, or the high temperature heat among the Chinese patent document CN 102012170A is recycled converter.
As preferred embodiment, said phosphorus steam is sent into said secondary heat exchanger f behind a dust arrester h.
Said dust arrester h comprises: column-shaped barrel h1; Be located at this column-shaped barrel h1 top the first flange-interface h14 that is used to import said phosphorus steam, be located at the second flange-interface h15 that is used to export said phosphorus steam on the sidewall of this column-shaped barrel h1, be located at drum type brake filter screen h2 in this column-shaped barrel h1, drive this drum type brake filter screen h2 around the driving mechanism of its central shaft rotation, axially be located in the said drum type brake filter screen h2 and the bottom interior wall setting of contiguous this drum type brake filter screen h2 be used for to the inwall nitrogen-blow of this drum type brake filter screen h2 with the air jet pipe h3 that removes dust, axially be located at the said drum type brake filter screen h2 outside the wool yarn plate h4 that is used to brush away the dust on the said drum type brake filter screen h2, be connected in said column-shaped barrel h1 lower end be obconic conically shaped h5, be located at this conically shaped h5 lower end blanking seal valve h6, be located at this first blanking seal valve h6 bottom storage chamber h7, be located at this storage chamber h7 bottom discharging seal valve h9, be located at heater h8 in this storage chamber h7, be located at nitrogen air inlet pipe and air exhaust duct on the storage chamber h7, be located at being suitable on said nitrogen air inlet pipe and the air exhaust duct respectively and open and close nitrogen intake valve h12 and air exhaust-valve h10 simultaneously, the downstream pipeline of this air exhaust-valve h10 is provided with check valve h11.After blanking seal valve h6, the discharging seal valve h9 closure, open nitrogen intake valve h12 and air exhaust-valve h10 simultaneously, be suitable for the air among the storage chamber h7 is drained.
Be distributed with fumarole down on the air jet pipe h3, be used to spray nitrogen, prevent that said drum type brake filter screen h2 from stopping up.
Said driving mechanism comprises motor h16 and the reduction box h13 that is in transmission connection with this motor h16, the end sealing of said drum type brake filter screen h2, and the center of this end is provided with a rotating shaft, and the output shaft of this rotating shaft and said reduction box h13 is in transmission connection.
The other end of said drum type brake filter screen h2 is the open type port, the second flange-interface h15 and the adjacent setting of said open type port.Preferably, the second flange-interface h15 and said open type port are coaxially set.
Preferably, said wool yarn plate h4 is located at the outside of the middle and lower part of said drum type brake filter screen h2, so that the dust that brush falls gets into said conically shaped h5 fast.
When starting working, through charging into the mode of nitrogen, discharge air in said column-shaped barrel h1, conically shaped h5 and the storage chamber h7, blast with after preventing phosphorus steam and air mixing.Closed then blanking seal valve h6, discharging seal valve h9, nitrogen intake valve h12 and air exhaust-valve h10.
Phosphorus steam is sent into column-shaped barrel h1 through the first flange-interface h14, gets into drum type brake filter screen h2 then downwards, exports from the second flange-interface h15 then;
This drum type brake filter screen of drive mechanism h2 is around its central shaft rotation, and air jet pipe h3 sprays high pressure nitrogen, and the dust that is attached on the said drum type brake filter screen h2 is blown off to said conically shaped h5; The dust brush that wool yarn plate h4 will be attached on the said drum type brake filter screen h2 drops down onto said conically shaped h5.
Open blanking seal valve h6; Dust among the said conically shaped h5 is dropped down onto in the storage chamber h7; Heater h8 heats the dust in the storage chamber h7 then; Make the phosphorus that condenses on the dust evaporate into phosphorus steam, after the rising of phosphorus steam gets into said drum type brake filter screen h2 again, through second flange-interface h15 output; By the time when without phosphorus steam was exported in the storage chamber h7, said blanking seal valve h6 was closed, closes heater h8; By the time after the storage chamber h7 cooling, open said discharging seal valve h9, draw off said dust.Closed then discharging seal valve h9 opens nitrogen intake valve h12 and air exhaust-valve h10, drains the air among the storage chamber h7 for use.
Present embodiment after the dedusting of phosphorus steam, is sent into said secondary heat exchanger f and scrubbing tower g, is beneficial in receiving phosphorus groove p and forms the higher phosphorus of purity.
Like Fig. 2 to 5; The yellow phosphorus stove slag energy recovery stove a of present embodiment; Comprise: cylindrical shell 1; Be provided with in this cylindrical shell 1 axially run through this cylindrical shell 1 be used for said high temperature furnace slag is delivered to the fire grate 2 of discharging opening from the feeding mouth of this cylindrical shell 1, the end of contiguous said cylindrical shell 1 is respectively equipped with the drive 3 that cooperates with said fire grate 2 transmissions, is distributed with a plurality of carrying rollers below the epipelagic zone bottom surface of the fire grate 2 in the said cylindrical shell 1.
The top portion of said cylindrical shell 1 is furnished with a plurality of openings; The heat exchanger 5 that each opening is provided with; Water carrier pipe in each heat exchanger 5 is connected successively, and water at low temperature is from the water inlet input of the heat exchanger 5 of the discharging opening of contiguous said cylindrical shell 1, because the heat exchanger tube temperature in each heat exchanger 5 on the flow direction of said water (preferred soft water) raises step by step; Thereby be suitable for making said water by heating step by step, and reach higher temperature.
As a kind of optional scheme, the water out of heat exchanger 5 is used to connect other heat transmission equipments, is used to produce hot water, hot-air or supersaturated vapor etc.
The feeding mouth of contiguous said cylindrical shell 1 is provided with a pair of particle roller 6 that is used for charging and the said high temperature furnace slag of cooled and solidified; This is provided with the drapery panel 18 and distribute roll 4 that adjacent parallel is provided with to particle roller 6 belows; Be ground into graininess after being used for to fall into the further cooled and solidified of said high temperature furnace slag between this drapery panel 18 and the distribute roll 4, and this granule materials is delivered on the said fire grate 2.
Heat exchanger 5 is used for the high temperature furnace slag waste heat recovery; The cooling particle device that described particle roller 6, drapery panel 18 and distribute roll 4 constitute is used for the cooled and solidified high temperature furnace slag and generates particulate material; Prevent material caking when cooling; Generate simultaneously that the area of dissipation of material significantly increases after the particulate material; Be beneficial to abundant, the release fast of waste heat of material, be beneficial to the rate of recovery that improves heat energy.
In the said cylindrical shell 1, in the downstream of said distribute roll 4 and above fire grate 2, be provided with material scraping plate 7, so that the material on the said fire grate 2 is evenly distributed, the waste heat that is beneficial to material fully, discharge fast is beneficial to the rate of recovery that improves heat energy.Said material scraping plate 7 is suitable for letting in air, and the hot blast that passes the high temperature furnace slag on the said drapery panel 18 successively is suitable for through this material scraping plate 7 and gets in the said heat exchanger 5 adjacent with this material scraping plate 7; The exhaust outlet that being used to of this heat exchanger 5 discharged the heat exchange air links to each other with described each air-blast nozzle through air blast 17.
Said drapery panel is suitable for letting in air, and the back side of drapery panel is distributed with a plurality of air-blast nozzles that are used for the said high-temperature material high temperature furnace slag air blast on drapery panel.
Like Fig. 2 or 6 said drapery panel 18 tilt distribution and its upper surface is serrated face; Or this drapery panel 18 is for radian is 45-90 °, the arc that vertically is provided with, and it is used to carry on the concave surface of said high-temperature material high temperature furnace slag heat and is distributed with sawtooth, the bottom of the contiguous said distribute roll 4 of the bottom margin of arc; Be distributed with tapered protrusion on the cylinder of said distribute roll 4, be used for said fire grate 2 is pulverized and delivered to the material on this drapery panel 18.Distribute roll 4 is used with drapery panel 18, is beneficial to further fragmentation material, further increases area of dissipation, is beneficial to abundant, the release fast of waste heat of material, is beneficial to the rate of recovery that improves heat energy.
The exhaust outlet that being used to of each heat exchanger 5 top discharged the heat exchange air is connected with circulating gas pipe 8 respectively; Each circulating gas pipe 8 is passed the wall body of said cylindrical shell 1 and is extended in the said cylindrical shell 1; The gas outlet of each circulating gas pipe 8 is between the upper and lower layer band of said fire grate 2, is suitable for the cycling hot air-flow that upwards penetrates the epipelagic zone of said fire grate 2 and act on said heat exchanger 5 with formation in cylindrical shell 1; The bottom surface of the epipelagic zone of the contiguous said fire grate 2 in the gas outlet of each circulating gas pipe 8 also is provided with up.Adopt the cycling hot air-flow to act on corresponding heat exchanger 5, avoided the loss of hot-air, need not simultaneously to mend cool exterior air, further improved the rate of recovery of heat energy.
Said particle roller 6 be the jacket type chill roll with distribute roll 4, between the heat exchanger tube in a pair of heat exchanger 5 that the chuck portion in this particle roller 6 and the distribute roll 4 is connected on and the discharging opening of said cylindrical shell 1 is close to.These particle roller 6 two ends central authorities are provided with hollow rotating shaft 15; This to hollow rotating shaft 15 respectively bearing be matched with on the pair of bearing 12; And the external port of described a pair of hollow rotating shaft is respectively equipped with swivel 13, and this particle roller 6 is through between the heat exchanger tube in a pair of heat exchanger 5 of described a pair of swivel 13 series connection.
As another kind of embodiment, the inwall of this particle roller 6 is provided with along spiral heat exchange tube 11 axial distribution of this particle roller, that be used to heat said water, and this spiral heat exchange tube 11 is the semicircle pipe on opening the is welded on said particle roller inwall; Spiral heat exchange tube 11 adopts the semicircle pipe to process, and the water in the spiral heat exchange tube 11 is directly contacted with the inwall of particle roller 6, is beneficial to further raising heat energy conversion efficient and heat energy recovery rate.
Sending into this said water to particle roller 6 can be new cold water, also can be the hot water from heat exchanger 5 outputs of the feeding mouth of contiguous said cylindrical shell 1; Can carry out corresponding selection according to the temperature requirement of the required said water in outside.
The two ends of spiral heat exchange tube 11 link to each other with the inner port of the hollow rotating shaft 15 that is fixed in these particle roller two ends central authorities respectively; This to hollow rotating shaft 15 respectively bearing be matched with on the pair of bearing 12; And the external port of described a pair of hollow rotating shaft is respectively equipped with swivel 13, is respectively applied for input, exports said water.This particle roller 6 is through between the heat exchanger tube in a pair of heat exchanger 5 of described a pair of swivel 13 series connection.
As the third preferential scheme; The external port of the said swivel 13 of one side abutting end of described a pair of particle roller 6 links to each other; So that this links to each other with the water out of the heat exchanger 5 of the feeding mouth of contiguous said cylindrical shell 1 to the 11 series connection backs of the spiral heat exchange tube in the particle roller 6; With the said water of further heating, the water that formation temperature is higher.
Because in heating process, said water section vaporization, the water out at heat exchanger 5 tops of the feeding mouth of contiguous said cylindrical shell 1 is suitable for exporting steam, and this steam links to each other with a drum 9 through check-valves.Drum 9 is used to store saturated vapor, is used for to other equipment heat supplies.Be used to carry the pipeline of said steam to be suitable for getting into said drum 9 and to extend to the top that is close to this drum 9.
When said water was water, drum 9 was used to collect saturated vapor, and the aqueous water outlet of drum 9 bottoms links to each other through the water inlet of check valve with said heat exchanger 5 bottoms.One end of drum 9 is provided with liquid level gauge 19, is used for indicating the liquid water level of drum 9.
Be provided with a plurality of shifting boards that distribute alternately 10 in the said cylindrical shell 1 and in the epipelagic zone below of said fire grate 2; Each shifting board 10 is provided with and is suitable for making said lower floor to be with the rectangular through-hole of walking, and a cavity that constitutes between the adjacent a pair of shifting board 10 and a said heat exchanger 5 distribute up and down relatively; The hot-air of the top vent output of a described heat exchanger 5 is suitable for delivering in the said cavity of these heat exchanger 5 belows through said circulating gas pipe 8.
As preferred scheme, because traditional yellow phosphorus furnace slag is the bigger block of volume after piling up crystallisation by cooling, this block integral hardness is near granite; After adopting said cooling particle device to pulverize; Be suitable for generating particulate material, so that, realized its recycling as particulate material for building.
Be distributed with protruding 14 on the roller wall of said particle roller 6; A pair of particle roller 6 is suitable for rotating in opposite directions when working.
The bottom of said heat exchanger 5 is horn-like, and string is provided with the high pressure conveying gas blower 16 that is in said cylindrical shell 1 outside on each circulating gas pipe 8.
Said heat exchanger 5 is the vertical pipe type heat exchanger, is provided with the spiral wind deflector that distributes up and down in this heat exchanger 5, and the vertical heat exchanger tube in the heat exchanger 5 axially interts on said spiral wind deflector.
The method of work of said yellow phosphorus stove slag energy recovery stove; Comprise: said high temperature furnace slag gets into said cylindrical shell 1 after a pair of particle roller 6 cooled and solidified on the feeding mouth of said cylindrical shell 1; And drop down onto between described drapery panel 18 and the distribute roll 6; This distribute roll 6 is ground into granule materials after with the further cooled and solidified of said high temperature furnace slag, and delivers on the said fire grate 2; Granule materials on this fire grate 2 heats the air in the said cylindrical shell 1 and produces hot-air; This hot-air rises and gets into each heat exchanger 5; The heat exchange air that discharge at each heat exchanger 5 top gets in the said cylindrical shell 1 and between the upper and lower layer of sending into said fire grate 2 is with through circulating gas pipe 8; Upwards penetrate the granule materials on said epipelagic zone and this epipelagic zone then, to form air heat exchange circulation.
Embodiment 3
On the basis of embodiment 2, present embodiment has following modification:
Described particle roller 6 two ends central authorities are respectively equipped with into liquid, fluid hollow rotating shaft; This to hollow rotating shaft respectively bearing be matched with on the pair of bearing 12, and the external port of described a pair of hollow rotating shaft is respectively equipped with swivel 13, is respectively applied for the body that connects input, the said water of output; The outlet end of said spiral heat exchange tube 11 links to each other with the inner port of said hollow rotating shaft; The liquid inlet of said spiral heat exchange tube 11 is in this particle roller 6 and extend to contiguous said fluid hollow rotating shaft; So that the water that newly gets in this particle roller 6 gets into said spiral heat exchange tube 11 after the preheating in this particle roller 6; Further heat, and then prolong the heat exchange stroke of water, improve heat exchange efficiency.
As a kind of preferred scheme, the external port of the said swivel that a side of described a pair of particle roller 6 is adjacent links to each other, so that said water is in this heat exchange of connecting in to the particle roller, with the said water of further heating, the water that formation temperature is higher.
Embodiment 4
On the basis of embodiment 2 and 3, present embodiment has following modification:
Described a pair of particle roller 6 adopts the particle roller 6 in embodiment 1 and 2 respectively, and the said spiral heat exchange tube 11 output backs of said water from embodiment 1 described particle roller 6 get into embodiment 2 described particle rollers 6.
Granule materials on this fire grate 2 heats the air in the said cylindrical shell 1 and produces hot-air; This hot-air rises and gets into each heat exchanger 5; The heat exchange air that discharge at each heat exchanger 5 top gets in the said cylindrical shell 1 and between the upper and lower layer of sending into said fire grate 2 is with through circulating gas pipe 8; Upwards penetrate the granule materials on said epipelagic zone and this epipelagic zone then, to form air heat exchange circulation.
Claims (10)
1. yellow phosphorus stove heat energy comprehensive reutilization system is characterized in that comprising:
Yellow phosphorus stove slag energy recovery stove; Be used for utilizing the high temperature furnace slag heat exchange of yellow phosphorus stove output to generate saturated vapor and be stored in a drum, utilize the power output end of the electricity generation system that the saturated vapor in this drum generates electricity to link to each other with the power input of said yellow phosphorus stove;
At least one first-class heat exchanger, the hot exhaust gas that is used to utilize the yellow phosphorus fire grate to go out adds hot water;
Combustion furnace, the said hot exhaust gas of discharging from said first-class heat exchanger through burning, with heating from the hot water of said drum output to generate saturated vapor, send said drum then back to;
At least one secondary heat exchanger is used to utilize phosphorus Steam Heating that the yellow phosphorus fire grate goes out from the water of said first-class heat exchanger output and generate saturated vapor, sends into said drum then;
Scrubbing tower links to each other with the phosphorus steam (vapor) outlet of said secondary heat exchanger, is used to wash said phosphorus steam;
Receive the phosphorus groove, link to each other with the bottom drain of described one-level, secondary heat exchanger and scrubbing tower.
2. yellow phosphorus stove heat energy comprehensive reutilization according to claim 1 system is characterized in that: said receipts phosphorus groove links to each other with the washing water inlet of said scrubbing tower through a water circulating pump;
The hot water that saturated vapor generates after electricity generation system is sent said first-class heat exchanger and/or said combustion furnace back to.
3. yellow phosphorus stove heat energy comprehensive reutilization according to claim 1 and 2 system is characterized in that also comprising: be used for the suction fresh air air dryer, be used to heat the dry air of this air dryer output air heat exchanger, be used for the heated drying air that this air heat exchanger generates is sent into the blower fan of said combustion furnace;
The exhaust port of said combustion furnace links to each other with the thermal source gas access of said air heat exchanger, to heat said dry air.
4. yellow phosphorus stove heat energy comprehensive reutilization according to claim 1 system; It is characterized in that: high temperature furnace slag heat energy utilization system comprises: cylindrical shell (1) is provided with the fire grate (2) that is used for said high temperature furnace slag is delivered to from the feeding mouth of this cylindrical shell (1) discharging opening that axially runs through this cylindrical shell (1) in this cylindrical shell (1);
The opening at said cylindrical shell (1) top is provided with heat exchanger (5);
The feeding mouth of said cylindrical shell (1) is provided with a pair of particle roller (6) that is used for charging and the said high temperature furnace slag of cooled and solidified; This is provided with drapery panel (18) and the distribute roll (4) that adjacent parallel is provided with to particle roller (6) below; Be ground into graininess after being used for to fall into the further cooled and solidified of said high temperature furnace slag between this drapery panel (18) and the distribute roll (4), and this granule materials is delivered on the said fire grate (2).
5. yellow phosphorus stove heat energy comprehensive reutilization according to claim 4 system; It is characterized in that: said drapery panel (18) is suitable for letting in air, and the back side of drapery panel (18) is distributed with a plurality of air-blast nozzles that are used for the said high temperature furnace slag air blast on drapery panel (18);
Said drapery panel (18) tilt distribution and its upper surface are serrated face; Or this drapery panel (18) is for radian is 45-90 °, the arc that vertically is provided with, and it is used to carry on the concave surface of said high temperature furnace slag heat and is distributed with sawtooth, the bottom of the contiguous said distribute roll of the bottom margin of arc (4);
Be distributed with tapered protrusion on the cylinder of said distribute roll (4), be used for said fire grate (2) is pulverized and delivered to the material on this drapery panel.
6. yellow phosphorus stove heat energy comprehensive reutilization according to claim 5 system; It is characterized in that: in the said cylindrical shell (1), be provided with material scraping plate (7) in the downstream of said distribute roll (4) and in said fire grate (2) top, so that the material on the said fire grate (2) is evenly distributed;
Said material scraping plate (7) is suitable for letting in air, and the hot blast that passes the high temperature furnace slag on the said drapery panel (18) successively is suitable for also getting in the said heat exchanger (5) adjacent with this material scraping plate (7) through this material scraping plate (7); The exhaust outlet that being used to of this heat exchanger (5) discharged the heat exchange air links to each other with described each air-blast nozzle through air blast (17).
7. yellow phosphorus stove heat energy comprehensive reutilization according to claim 4 system; It is characterized in that: the aperture distribution at said cylindrical shell (1) top has a plurality of; Heat exchanger tube in the heat exchanger on each opening (5) is connected successively, and water is from the inlet input of the heat exchanger (5) of the discharging opening of contiguous said cylindrical shell (1);
The exhaust outlet that being used to of each heat exchanger (5) top discharged the heat exchange air is connected with circulating gas pipe (8) respectively; Each circulating gas pipe (8) is passed the sidewall of said cylindrical shell (1) and is extended in the said cylindrical shell (1); The gas outlet of each circulating gas pipe is between the upper and lower layer band of said fire grate (2) and the bottom surface of the contiguous said epipelagic zone in each gas outlet and being provided with up, is suitable for the cycling hot air-flow that upwards penetrates said epipelagic zone and act on said heat exchanger (5) with formation cylindrical shell (1) in.
8. yellow phosphorus stove heat energy comprehensive reutilization according to claim 7 system; It is characterized in that: the inwall of said particle roller (6) is provided with along the spiral heat exchange tube axial distribution of this particle roller (6), that be used to heat said water, and this spiral heat exchange tube is that opening is welded on the semicircle pipe on said particle roller (6) inwall;
The two ends central authorities of said particle roller (6) are respectively equipped with into liquid, fluid hollow rotating shaft; This to hollow rotating shaft respectively bearing be matched with on the pair of bearing, and between the heat exchanger tube in a pair of heat exchanger (5) that the spiral heat exchange tube in the described particle roller (6) is connected on hollow rotating shaft through this and the discharging opening of said cylindrical shell (1) is contiguous; Or the bottom coil pipe of the heat exchanger tube in one or more heat exchangers (5) of said spiral heat exchange tube and the discharging opening of contiguous said cylindrical shell (1) is parallelly connected;
Go into liquid, the outlet end of said spiral heat exchange tube link to each other with said inner port of going into liquid, fluid hollow rotating shaft respectively; Or the outlet end of said spiral heat exchange tube links to each other with the inner port of said fluid hollow rotating shaft, and the liquid inlet of said spiral heat exchange tube is in this particle roller (6) and extend to contiguous said fluid hollow rotating shaft.
9. yellow phosphorus stove heat energy comprehensive reutilization according to claim 8 system; It is characterized in that: be provided with a plurality of shifting boards that distribute alternately (10) in the said cylindrical shell (1) and in said epipelagic zone below, a cavity that constitutes between the adjacent a pair of shifting board (10) and a said heat exchanger (5) distribute up and down relatively; The air of the exhaust outlet at a described heat exchanger (5) top output is suitable for delivering in the said cavity under this heat exchanger (5) through said circulating gas pipe (8);
Said heat exchanger (5) is the vertical pipe type heat exchanger, is provided with the spiral wind deflector that distributes up and down in this heat exchanger (5), and the vertical heat exchanger tube in the heat exchanger (5) interts on said spiral wind deflector.
10. the method for work of a yellow phosphorus stove heat energy comprehensive reutilization system is characterized in that comprising:
Yellow phosphorus stove slag energy recovery stove utilizes the high temperature furnace slag heat exchange of yellow phosphorus stove output to generate saturated vapor and is stored in the drum, and the saturated vapor in this drum is sent into electricity generation system generating, and this electricity generation system is supplied power to said yellow phosphorus stove;
The hot exhaust gas that the yellow phosphorus fire grate goes out is sent into first-class heat exchanger, to heat the water of said electricity generation system output;
The phosphorus steam that the yellow phosphorus fire grate goes out is sent into secondary heat exchanger, from the water of said first-class heat exchanger output and generate saturated vapor, sends into said drum with heating then;
The phosphorus steam that the scrubbing tower washing is discharged from said secondary heat exchanger;
Send into a receipts phosphorus groove from the phosphorus water mixed liquid that the bottom drain of described one-level, secondary heat exchanger and scrubbing tower is discharged; Water in the said receipts phosphorus groove is sent into said scrubbing tower through a water circulating pump and is washed;
Send into combustion furnace burning from the said hot exhaust gas that said first-class heat exchanger is discharged, to heat from the hot water of said drum output and/or the water of said electricity generation system output, to generate saturated vapor and to send said drum back to;
Fresh air is sent into the air heat exchanger heating after the air dryer drying, to generate the heated drying air; This heated drying air is sent into said combustion furnace through blower fan, with said hot exhaust gas mixed combustion;
The tail gas of said combustion furnace discharging is sent into said air heat exchanger, to heat said dry air.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102234917A CN102721030A (en) | 2012-06-29 | 2012-06-29 | Comprehensive recycling system of heat energy of yellow phosphorus furnace and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102234917A CN102721030A (en) | 2012-06-29 | 2012-06-29 | Comprehensive recycling system of heat energy of yellow phosphorus furnace and working method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015096177A1 (en) * | 2013-12-27 | 2015-07-02 | 成都易态科技有限公司 | Method, apparatus and special phosphorus recovery device for recovering yellow phosphorus from electric furnace phosphorus-producing furnace gas |
| CN105910448A (en) * | 2016-06-03 | 2016-08-31 | 中国重型机械研究院股份公司 | Combined type small particle semi-coke cooling and waste heat recycling device |
| CN114378091A (en) * | 2022-01-24 | 2022-04-22 | 贵州省磷膨科力实业投资有限公司 | Yellow phosphorus slag treatment device capable of recovering energy sources in multiple directions |
| CN115212669A (en) * | 2022-06-29 | 2022-10-21 | 成都易态科技有限公司 | Yellow phosphorus flue gas purification system |
-
2012
- 2012-06-29 CN CN2012102234917A patent/CN102721030A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015096177A1 (en) * | 2013-12-27 | 2015-07-02 | 成都易态科技有限公司 | Method, apparatus and special phosphorus recovery device for recovering yellow phosphorus from electric furnace phosphorus-producing furnace gas |
| US10246331B2 (en) * | 2013-12-27 | 2019-04-02 | Intermet Technologies Chengdu Co., Ltd | Method, apparatus and special phosphorus recovery device for recovering yellow phosphorus from electric furnace phosphorus-producing furnace gas |
| CN105910448A (en) * | 2016-06-03 | 2016-08-31 | 中国重型机械研究院股份公司 | Combined type small particle semi-coke cooling and waste heat recycling device |
| CN114378091A (en) * | 2022-01-24 | 2022-04-22 | 贵州省磷膨科力实业投资有限公司 | Yellow phosphorus slag treatment device capable of recovering energy sources in multiple directions |
| CN115212669A (en) * | 2022-06-29 | 2022-10-21 | 成都易态科技有限公司 | Yellow phosphorus flue gas purification system |
| CN115212669B (en) * | 2022-06-29 | 2023-07-04 | 成都易态科技有限公司 | Yellow phosphorus flue gas purification system |
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Application publication date: 20121010 |