CN202769618U - Yellow phosphorus furnace heat energy comprehensive recycling system - Google Patents
Yellow phosphorus furnace heat energy comprehensive recycling system Download PDFInfo
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- CN202769618U CN202769618U CN2012203159444U CN201220315944U CN202769618U CN 202769618 U CN202769618 U CN 202769618U CN 2012203159444 U CN2012203159444 U CN 2012203159444U CN 201220315944 U CN201220315944 U CN 201220315944U CN 202769618 U CN202769618 U CN 202769618U
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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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model relates to a yellow phosphorus furnace heat energy comprehensive recycling system. The yellow phosphorus furnace heat energy comprehensive recycling system comprises a slag heat energy recycling furnace, at least one first level heat exchanger, a combustion furnace, at least one second level heat exchanger, a scrubbing tower and a phosphorus collecting groove, wherein the slag heat energy recycling furnace is used for transferring high temperature slag output by a yellow phosphorus furnace into saturated steam in heating mode, and storing the saturated steam into a steam pocket. A power generation system which utilizes the steam pocket to generate electricity is connected with a mains input end of the yellow phosphorus furnace. At least one first level heat exchanger is used for utilizing hot tail gas discharged by the yellow phosphorus furnace to heat water. The combustion furnace is used for utilizing the hot tail gas discharged by the first level heat exchanger to heat the hot water output by the steam pocket to generate the saturated vapor, and then the saturated vapor is transported back to the steam pocket. At least one second level heat exchanger is used for utilizing phosphorus steam discharged by the yellow phosphorus furnace to heat the water output from the first level heat exchanger, and therefore the saturated steam is produced, and the saturated steam is transported back to the steam pocket. The scrubbing tower is connected with a phosphorus steam outlet of the second level heat exchanger, and is used for washing the phosphorus steam. The phosphorus collecting groove is connected with the first level heat exchanger, the second level heat exchanger and a discharge outlet of the scrubbing tower.
Description
Technical field
The utility model relates to the technical field of high temperature furnace slag heat recovery, specifically a kind of Yellow phosphorus furnace heat energy comprehensive reutilization system.
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 the 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 the resource production such as yellow phosphorus and metallurgy industry etc., significantly reduce greenhouse gas emission with corresponding, is China's urgent problem.
Chinese patent literature CN101881432A discloses a kind of high-temperature slag thermal recycle system that is suitable for generating high-pressure saturated steam; Chinese patent literature CN 101543832 discloses a kind of yellow phosphorus furnace boiler slag applying system, and Chinese patent literature CN 101543831 discloses a kind of yellow phosphorus furnace slag energy recovery stove; These systems have solved the recycling of high temperature furnace slag heat energy.
In production practices, Yellow phosphorus furnace generally adopts electric furnace, and power consumption is larger; 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 (such as 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 taking full advantage of again high temperature phosphorous steam and phosphorus furnace exhaust gas, is the technical problem that this area will solve.
The utility model content
Technical problem to be solved in the utility model 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 again the high temperature furnace slag heat reclaiming system of the phosphorus in the high temperature phosphorous steam.
For solving the problems of the technologies described above, the high temperature furnace slag heat reclaiming system that the utility model provides comprises:
Yellow phosphorus furnace slag energy recovery stove, be used for utilizing the high temperature furnace slag heat exchange of Yellow phosphorus furnace 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 described Yellow phosphorus furnace;
At least one first-class heat exchanger is used for the hot exhaust gas heating water that utilizes Yellow phosphorus furnace to discharge;
Combustion furnace, the described hot exhaust gas of discharging from described first-class heat exchanger by burning, with heating from the hot water of described drum output to generate saturated vapor, then send described drum back to;
At least one secondary heat exchanger is used for utilizing phosphorus Steam Heating that Yellow phosphorus furnace discharges from the water of described first-class heat exchanger output and generates saturated vapor, then sends into described drum;
Scrubbing tower links to each other with the phosphorus steam (vapor) outlet of described secondary heat exchanger, is used for washing described phosphorus steam;
Receive the phosphorus groove, link to each other with the bottom drain of described one-level, secondary heat exchanger and scrubbing tower.
Described receipts phosphorus groove links to each other with the washing water inlet of described scrubbing tower by a water circulating pump;
The hot water that saturated vapor generates after electricity generation system is sent described first-class heat exchanger and/or described combustion furnace back to.
Yellow phosphorus furnace heat energy comprehensive reutilization of the present utility model system also comprises: be used for the suction fresh air air dryer, be used for the dry air of this air dryer output of heating air heat exchanger, be used for the heated drying air that this air heat exchanger generates is sent into the blower fan of described combustion furnace; The exhaust port of described combustion furnace links to each other with the thermal source gas access of described air heat exchanger, to heat described dry air.Adopt dry air to send into described combustion furnace, can avoid humid air and have after corrosive described hot exhaust gas mixes, corrode described combustion furnace.Simultaneously, because the temperature of described 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.
Described yellow phosphorus furnace slag energy recovery stove comprises: cylindrical shell is provided with the fire grate that is used for described 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 described cylindrical shell top is provided with heat exchanger; The feeding mouth of described cylindrical shell is provided with a pair of particle roller for charging and the described high temperature furnace slag of cooled and solidified, this is provided with drapery panel and the distribute roll that adjacent parallel arranges to particle roller below, be ground into graininess after being used for to fall into the further cooled and solidified of described high temperature furnace slag between this drapery panel and the distribute roll, and this granule materials is delivered on the described fire grate.Wherein, heat exchanger is used for the high temperature furnace slag waste heat recovery; Described particle roller, drapery panel and distribute roll consist of a cooling crushed aggregates 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, be beneficial to abundant, the fast release of waste heat of material, be beneficial to the rate of recovery that improves heat energy.
Described drapery panel is suitable for letting in air, and the back side of drapery panel is distributed with a plurality of air-blast nozzles for the described high temperature furnace slag air blast on drapery panel.
Described 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 arranges, and it is used for carrying on the concave surface of described high temperature furnace slag heat and is distributed with sawtooth, the bottom of the contiguous described distribute roll of the bottom margin of arc; Be distributed with tapered protrusion on the cylinder of described distribute roll, be used for the crushing material on this drapery panel and deliver to described fire grate.
Described drapery panel is provided with serrated face, is beneficial to the area of dissipation that increases described high-temperature material, is beneficial to it and further cools off fast, solidifies; Tapered protrusion can prevent that described high-temperature material is bonded on this projection.Being used of distribute roll and drapery panel is beneficial to further fragmentation material, further increases area of dissipation, is beneficial to abundant, the fast release of waste heat of material, is beneficial to the rate of recovery that improves heat energy.
As the scheme of optimizing, in the described cylindrical shell, in the downstream of described distribute roll and be provided with material scraping plate above described fire grate, so that the material on the described 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.Described material scraping plate is suitable for letting in air, and the hot blast that passes successively the high temperature furnace slag on the described drapery panel is suitable for by this material scraping plate and enters in the described heat exchanger adjacent with this material scraping plate; The exhaust outlet that is used for discharge heat exchange air of this heat exchanger 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 described cylindrical shell top has a plurality of, the heat exchanger tube for delivery of water in the heat exchanger on each opening is connected successively, the water that temperature is lower is inputted from the entrance of the heat exchanger of the discharging opening of contiguous described cylindrical shell, because the heat exchanger tube temperature in each heat exchanger on the flow direction of described water raises step by step, thereby be suitable for making described water by stepped heating, and reach higher temperature; The water out of heat exchanger is used for connecting other heat transmission equipments, for the production of hot water, hot-air or supersaturated vapor etc.
As the scheme of optimizing, the exhaust outlet that is used for discharge heat exchange air at each heat exchanger top is connected with respectively circulating gas pipe, each circulating gas pipe is passed the sidewall of described cylindrical shell and is extended between the upper and lower layer of band that described cylindrical shell is interior, the gas outlet of each circulating gas pipe is in described fire grate and the bottom surface of the contiguous described epipelagic zone in each gas outlet and setting up, is suitable for the cycling hot air-flow that upwards penetrates described epipelagic zone and act on described heat exchanger with formation in cylindrical shell.Adopt the cycling hot airflow function in corresponding heat exchanger, avoided the loss of hot-air, fill into simultaneously the cool exterior air heating, further improved the rate of recovery of heat energy.
Described particle roller and distribute roll are the jacket type chill roll; Between the heat exchanger tube in the heat exchanger that chuck section in this particle roller and the distribute roll is connected on and the discharging opening of described cylindrical shell is contiguous; Or, the bottom coil pipe of the heat exchanger tube in one or more heat exchangers of the chuck section of described particle roller and distribute roll and the discharging opening of contiguous described cylindrical shell is in parallel, will send into by the heat transferring medium of particle roller preheating one or more heat exchangers of the discharging opening of contiguous described cylindrical shell, and then improve water temperature in these one or more heat exchangers, be beneficial in one or more heat exchangers of the feeding mouth of contiguous described cylindrical shell and generate saturated vapor.
The inwall of described particle roller is provided with along the spiral heat exchange tube axial distribution of this particle roller, that be used for heating described water, and this spiral heat exchange tube is that opening is welded on the semi-circular tube on the described particle roller inwall; Spiral heat exchange tube adopts semi-circular tube to make, and the water in the heat exchanger tube is directly contacted with the inwall of particle roller, is beneficial to conversion efficiency and the heat energy recovery rate of further raising heat energy.
Further, described particle roller two ends central authorities are respectively equipped with into liquid, fluid hollow rotating shaft; This distinguishes bearing fit on pair of bearing to hollow rotating shaft, and between the heat exchanger tube in the heat exchanger that the spiral heat exchange tube in the described particle roller is connected on hollow rotating shaft by this and the discharging opening of described cylindrical shell is contiguous; Or, the bottom coil pipe of the heat exchanger tube in one or more heat exchangers of described spiral heat exchange tube and the discharging opening of contiguous described cylindrical shell is in parallel, will send into by the heat transferring medium of particle roller preheating one or more heat exchangers of the discharging opening of contiguous described cylindrical shell, and then improve water temperature in these one or more heat exchangers, be beneficial in one or more heat exchangers of the feeding mouth of contiguous described cylindrical shell and generate saturated vapor.
Enter liquid, the outlet end of described spiral heat exchange tube link to each other with the described inner port that enters liquid, fluid hollow rotating shaft respectively; Or, the outlet end of described spiral heat exchange tube links to each other with the inner port of described hollow rotating shaft, the liquid inlet of described spiral heat exchange tube is in this particle roller and extend to contiguous described fluid hollow rotating shaft, so that the water that newly enters in this particle roller enters described spiral heat exchange tube after the preheating in this particle roller, further heat, 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, the cavity that consists of between the adjacent a pair of shifting board and up and down relative distribution of a described heat exchanger in the described cylindrical shell and in described epipelagic zone below; The air of the exhaust outlet at described heat exchanger top output is suitable for delivering in the described cavity under this heat exchanger by described circulating gas pipe.
Further, excessive for preventing thermal current and material, the feeding mouth of described cylindrical shell is on the end face of inboard, described cylindrical shell end, the end-enclosed of the feeding mouth of contiguous this cylindrical shell.
Described high temperature furnace slag is yellow phosphorus furnace slag; Owing to be the larger 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 described cooling crushed aggregates device with the yellow phosphorus furnace slag cooled and solidified of high temperature attitude, particle, by decisions such as the shape of the roll surface projection of the double-roll crusher of selecting, density), so that as particulate material for building, realized its recycling.
The discharging opening of cooling crushed aggregates device and the vertical range of described fire grate are 0.5-1m, to realize the air cooling in the blanking process, to generate particulate material, prevent that the yellow phosphorus furnace slag regelation from becoming piece.
As further preferred scheme, described 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 exchanging pipe in the heat exchanger interts on described spiral wind deflector.Spiral wind deflector is suitable for lengthening the stroke of hot blast in this heat exchanger, increases the time of contact of hot blast and heat exchanger tube, and then further improves the rate of recovery of heat energy.
The utility model has positive effect with respect to prior art: high temperature furnace slag heat reclaiming system of the present utility model, 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 Yellow phosphorus furnace back to and is used (Yellow phosphorus furnace 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 benefit and social benefit.
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 described yellow phosphorus furnace slag energy recovery stove;
Fig. 3 is the surface structure schematic diagram of described double-roll crusher;
Fig. 4 is the cross-sectional view of the particle roller in the described 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 described yellow phosphorus furnace slag energy recovery stove;
Fig. 7 is the another kind of structural representation of described high temperature furnace slag heat reclaiming system;
Fig. 8 is the structural representation of the described dust arrester among Fig. 7;
Fig. 9 is the A-A profile of Fig. 8.
The specific embodiment
Embodiment 1
See Fig. 1, the high temperature furnace slag heat reclaiming system of present embodiment comprises:
Yellow phosphorus furnace slag energy recovery stove a, be used for utilizing the high temperature furnace slag heat exchange of Yellow phosphorus furnace 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 described Yellow phosphorus furnace b;
First-class heat exchanger d is used for the hot exhaust gas heating water that utilizes Yellow phosphorus furnace to discharge;
Combustion furnace e, the described hot exhaust gas of discharging from described first-class heat exchanger by burning, with heating from the hot water of described drum output to generate saturated vapor, then send described drum back to;
The secondary heat exchanger f of two series connection is used for utilizing phosphorus Steam Heating that Yellow phosphorus furnace discharges from the water of described first-class heat exchanger output and generates saturated vapor, then sends into described drum;
Scrubbing tower g links to each other with the phosphorus steam (vapor) outlet of the described secondary heat exchanger of final stage, is used for washing described phosphorus steam;
Receive phosphorus groove p, link to each other with the bottom drain of described one-level, secondary heat exchanger and scrubbing tower.
Described receipts phosphorus groove p links to each other with the washing water inlet of described scrubbing tower g by a water circulating pump i; The hot water that saturated vapor generates behind electricity generation system c is sent described first-class heat exchanger d and/or described combustion furnace e back to;
Air dryer j is used for the suction fresh air;
Air heat exchanger k is used for the dry air that this air dryer of heating is exported;
Blower fan m is used for the heated drying air that this air heat exchanger generates is sent into described combustion furnace e; The exhaust port of described combustion furnace e links to each other with the thermal source gas access of described air heat exchanger k, to heat described dry air.
Receive phosphorus groove p and link to each other with being subjected to phosphorus groove n, be used for finished product packing.
Described first-class heat exchanger d also can adopt a plurality of of series connection.
The concrete structure principle of yellow phosphorus furnace slag energy recovery stove a, can adopt being suitable among the Chinese patent literature CN101881432A to generate the high-temperature slag thermal recycle system of high-pressure saturated steam, or the yellow phosphorus furnace boiler slag applying system among the Chinese patent literature CN 101543832, or the yellow phosphorus furnace slag energy recovery stove among the Chinese patent literature CN101543831, or the high-temperature heat energy recovery converter among the Chinese patent literature CN 102012170A.
As preferred embodiment, described phosphorus steam is sent into described secondary heat exchanger f behind a dust arrester h.
Described dust arrester h comprises: column-shaped barrel h1, be located at the first flange-interface h14 that is used for inputting described phosphorus steam on this column-shaped barrel h1 top, be located at the second flange-interface h15 that is used for exporting described phosphorus steam on the sidewall of this column-shaped barrel h1, be located at the 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 described drum type brake filter screen h2 and the bottom interior wall of contiguous this drum type brake filter screen h2 arranges is used for inwall nitrogen-blow to this drum type brake filter screen h2 to remove the air jet pipe h3 of dust, axially be located at the wool yarn plate h4 that is used for brushing away the dust on the described drum type brake filter screen h2 in the described drum type brake filter screen h2 outside, be connected in the obconic conically shaped h5 that is of described column-shaped barrel h1 lower end, be located at the blanking seal valve h6 of this conically shaped h5 lower end, be located at the storage chamber h7 of this first blanking seal valve h6 bottom, be located at the discharging seal valve h9 of this storage chamber h7 bottom, be located at the 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 respectively being suitable on described nitrogen air inlet pipe and the air exhaust duct and open and close simultaneously nitrogen intake valve h12 and air exhaust-valve h10, 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 simultaneously nitrogen intake valve h12 and air exhaust-valve h10, 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 for ejection nitrogen, prevent that described drum type brake filter screen h2 from stopping up.
Described driving mechanism comprises motor h16 and the reduction box h13 that is in transmission connection with this motor h16, the end part seal of described 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 described reduction box h13 is in transmission connection.
The other end of described drum type brake filter screen h2 is the open type port, the second flange-interface h15 and the adjacent setting of described open type port.Preferably, the second flange-interface h15 and described open type port are coaxially set.
Preferably, described wool yarn plate h4 is located at the outside of the middle and lower part of described drum type brake filter screen h2, so that the dust that brush falls enters described conically shaped h5 fast.
When starting working, by being filled with the mode of nitrogen, discharge air in described column-shaped barrel h1, conically shaped h5 and the storage chamber h7, blast with after preventing phosphorus steam and air mixing.Then closed 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, then enters drum type brake filter screen h2 downwards, then exports from the second flange-interface h15;
Driving mechanism drives this drum type brake filter screen h2 around its central shaft rotation, and air jet pipe h3 sprays high pressure nitrogen, and the dust that is attached on the described drum type brake filter screen h2 is blown off to described conically shaped h5; The dust brush that wool yarn plate h4 will be attached on the described drum type brake filter screen h2 drops down onto described conically shaped h5.
Open blanking seal valve h6, dust among the described conically shaped h5 is dropped down onto in the storage chamber h7, then heater h8 heats the dust in the storage chamber h7, make the phosphorus that condenses on the dust evaporate into phosphorus steam, after the phosphorus steam rising reenters described drum type brake filter screen h2, export through the second flange-interface h15; By the time when without phosphorus steam was exported in the storage chamber h7, described blanking seal valve h6 was closed, closes heater h8; By the time after the storage chamber h7 cooling, open described discharging seal valve h9, draw off described dust.Then closed discharging seal valve h9 opens nitrogen intake valve h12 and air exhaust-valve h10, drains the air among the storage chamber h7 stand-by.
Present embodiment behind the phosphorus Steam Dust, is sent into described secondary heat exchanger f and scrubbing tower g, is beneficial in receiving phosphorus groove p and forms the higher phosphorus of purity.
Such as Fig. 2 to 5, the yellow phosphorus furnace slag energy recovery stove a of present embodiment, comprise: cylindrical shell 1, be provided with the fire grate 2 that is used for described 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 end of contiguous described cylindrical shell 1 is respectively equipped with the drive 3 that cooperates with described fire grate 2 transmissions, and the below, epipelagic zone bottom surface of the fire grate 2 in the described cylindrical shell 1 is distributed with a plurality of carrying rollers.
The top of described cylindrical shell 1 is distributed 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, water at low temperature is from the water inlet input of the heat exchanger 5 of the discharging opening of contiguous described cylindrical shell 1, because the heat exchanger tube temperature in each heat exchanger 5 on the flow direction of described water (preferred soft water) raises step by step, thereby be suitable for making described water by stepped heating, and reach higher temperature.
As a kind of optional scheme, the water out of heat exchanger 5 is used for connecting other heat transmission equipments, for the production of hot water, hot-air or supersaturated vapor etc.
The feeding mouth of contiguous described cylindrical shell 1 is provided with a pair of particle roller 6 for charging and the described high temperature furnace slag of cooled and solidified, this is provided with drapery panel 18 and the distribute roll 4 that adjacent parallel arranges to particle roller 6 belows, be ground into graininess after being used for to fall into the further cooled and solidified of described high temperature furnace slag between this drapery panel 18 and the distribute roll 4, and this granule materials is delivered on the described fire grate 2.
Heat exchanger 5 is used for the high temperature furnace slag waste heat recovery; The cooling crushed aggregates device that described particle roller 6, drapery panel 18 and distribute roll 4 consist of 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 fast release of waste heat of material, be beneficial to the rate of recovery that improves heat energy.
In the described cylindrical shell 1, in the downstream of described distribute roll 4 and be provided with material scraping plate 7 above fire grate 2, so that the material on the described 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.Described material scraping plate 7 is suitable for letting in air, and the hot blast that passes successively the high temperature furnace slag on the described drapery panel 18 is suitable for by this material scraping plate 7 and enters in the described heat exchanger 5 adjacent with this material scraping plate 7; The exhaust outlet that is used for discharge heat exchange air of this heat exchanger 5 links to each other with described each air-blast nozzle through air blast 17.
Described drapery panel is suitable for letting in air, and the back side of drapery panel is distributed with a plurality of air-blast nozzles for the described high-temperature material high temperature furnace slag air blast on drapery panel.
Be serrated face such as drapery panel 18 tilt distribution as described in Fig. 2 or 6 and its upper surface; Or this drapery panel 18 is for radian is 45-90 °, the arc that vertically arranges, and it is used for carrying on the concave surface of described high-temperature material high temperature furnace slag heat and is distributed with sawtooth, the bottom of the contiguous described distribute roll 4 of the bottom margin of arc; Be distributed with tapered protrusion on the cylinder of described distribute roll 4, be used for the crushing material on this drapery panel 18 and deliver to described fire grate 2.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 fast release of waste heat of material, is beneficial to the rate of recovery that improves heat energy.
The exhaust outlet that is used for discharge heat exchange air at each heat exchanger 5 top is connected with respectively circulating gas pipe 8, each circulating gas pipe 8 is passed the wall body of described cylindrical shell 1 and is extended in the described cylindrical shell 1, the gas outlet of each circulating gas pipe 8 is between the upper and lower layer band of described fire grate 2, with the cycling hot air-flow that is suitable in cylindrical shell 1 interior formation upwards penetrating the epipelagic zone of described fire grate 2 and acting on described heat exchanger 5; The bottom surface of the epipelagic zone of the contiguous described fire grate 2 in the gas outlet of each circulating gas pipe 8 also arranges up.Adopt the cycling hot airflow function in corresponding heat exchanger 5, avoided the loss of hot-air, need not simultaneously to fill into cool exterior air, further improved the rate of recovery of heat energy.
Described particle roller 6 and distribute roll 4 are the jacket type chill roll, between the heat exchanger tube in the heat exchanger 5 that the chuck section in this particle roller 6 and the distribute roll 4 is connected on and the discharging opening of described cylindrical shell 1 is contiguous.These particle roller 6 two ends central authorities are provided with hollow rotating shaft 15, this distinguishes bearing fits on pair of bearing 12 to hollow rotating shaft 15, and the external port of described a pair of hollow rotating shaft is respectively equipped with swivel 13, and this particle roller 6 is by between the heat exchanger tube in described a pair of swivel 13 series connection one heat exchanger 5.
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 for heating described water, and this spiral heat exchange tube 11 is the semi-circular tube on opening the is welded on described particle roller inwall; Spiral heat exchange tube 11 adopts semi-circular tube to make, and the water in the spiral heat exchange tube 11 is directly contacted with the inwall of particle roller 6, is beneficial to conversion efficiency and the heat energy recovery rate of further raising heat energy.
Sending into this described 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 described cylindrical shell 1; Can carry out corresponding selection according to the temperature requirement of the required described 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 distinguishes bearing fits on pair of bearing 12 to hollow rotating shaft 15, and the external port of described a pair of hollow rotating shaft is respectively equipped with swivel 13, is respectively applied to input, exports described water.This particle roller 6 is by between the heat exchanger tube in described a pair of swivel 13 series connection one heat exchanger 5.
As the third preferential scheme, the external port of the described swivel 13 of one side abutting end of described a pair of particle roller 6 links to each other, so that this water out to the heat exchanger 5 of the rear feeding mouth with being close to described cylindrical shell 1 of spiral heat exchange tube 11 series connection in the particle roller 6 links to each other, with the described water of further heating, the water that formation temperature is higher.
Because in heating process, described water section vaporization, the water out at heat exchanger 5 tops of the feeding mouth of contiguous described 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 for the storage saturated vapor, is used for to other equipment heat supplies.Pipeline for delivery of described steam is suitable for entering described drum 9 and extends to the top that is close to this drum 9.
When described water was water, drum 9 was used for collecting saturated vapor, and the aqueous water outlet of drum 9 bottoms links to each other through the water inlet of check valve with described heat exchanger 5 bottoms.One end of drum 9 is provided with liquid level gauge 19, is used to indicate the liquid water level in the drum 9.
Be provided with a plurality of shifting boards that distribute alternately 10 in the described cylindrical shell 1 and in the epipelagic zone below of described fire grate 2, each shifting board 10 is provided with and is suitable for making described lower floor to be with the rectangular through-hole of walking, the cavity and up and down relative distribution of a described heat exchanger 5 that consist of between the adjacent a pair of shifting board 10; The hot-air of the top vent output of a described heat exchanger 5 is suitable for delivering in the described cavity of these heat exchanger 5 belows by described circulating gas pipe 8.
As preferred scheme, because traditional yellow phosphorus furnace slag is the larger block of volume after piling up crystallisation by cooling, this block integral hardness is near granite, after adopting described cooling crushed aggregates device to pulverize, be suitable for generating particulate material, so that as particulate material for building, realized its recycling.
Be distributed with projection 14 on the roller wall of described particle roller 6; Be suitable for rotating in opposite directions during a pair of particle roller 6 work.
The bottom of described heat exchanger 5 is horn-like, and string is provided with the high pressure conveying gas blower 16 that is in described cylindrical shell 1 outside on each circulating gas pipe 8.
Described 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 exchanging pipe in the heat exchanger 5 axially interts on described spiral wind deflector.
The method of work of described yellow phosphorus furnace slag energy recovery stove, comprise: described high temperature furnace slag enters described cylindrical shell 1 after a pair of particle roller 6 cooled and solidified on the feeding mouth of described 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 described high temperature furnace slag, and delivers on the described fire grate 2; Granule materials on this fire grate 2 heats the air in the described cylindrical shell 1 and produces hot-air, this hot air rising enters each heat exchanger 5, the heat exchange air that discharge at each heat exchanger 5 top is through circulating gas pipe 8 enters described cylindrical shell 1 in and between the upper and lower layer of sending into described fire grate 2 is with, then upwards penetrate the granule materials on described epipelagic zone and this epipelagic zone, to form the 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 distinguishes bearing fit on pair of bearing 12 to hollow rotating shaft, and the external port of described a pair of hollow rotating shaft is respectively equipped with swivel 13, the body of be respectively applied to connect input, exporting described water; The outlet end of described spiral heat exchange tube 11 links to each other with the inner port of described hollow rotating shaft, the liquid inlet of described spiral heat exchange tube 11 is in this particle roller 6 and extend to contiguous described fluid hollow rotating shaft, so that the water that newly enters in this particle roller 6 enters described spiral heat exchange tube 11 after these particle roller 6 interior preheatings, further heat, and then the heat exchange stroke of prolongation water, improve heat exchange efficiency.
As a kind of preferred scheme, the external port of the described swivel that a side of described a pair of particle roller 6 is adjacent links to each other, so that described water is in this heat exchange of connecting in to the particle roller, with the described 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 respectively the particle roller 6 in embodiment 1 and 2, and enters embodiment 2 described particle rollers 6 after described spiral heat exchange tube 11 outputs of described water from embodiment 1 described particle roller 6.
Granule materials on this fire grate 2 heats the air in the described cylindrical shell 1 and produces hot-air, this hot air rising enters each heat exchanger 5, the heat exchange air that discharge at each heat exchanger 5 top is through circulating gas pipe 8 enters described cylindrical shell 1 in and between the upper and lower layer of sending into described fire grate 2 is with, then upwards penetrate the granule materials on described epipelagic zone and this epipelagic zone, to form the air heat-exchange circulation.
Claims (9)
1. Yellow phosphorus furnace heat energy comprehensive reutilization system is characterized in that comprising:
Yellow phosphorus furnace slag energy recovery stove, be used for utilizing the high temperature furnace slag heat exchange of Yellow phosphorus furnace 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 described Yellow phosphorus furnace;
At least one first-class heat exchanger is used for the hot exhaust gas heating water that utilizes Yellow phosphorus furnace to discharge;
Combustion furnace, the described hot exhaust gas of discharging from described first-class heat exchanger by burning, with heating from the hot water of described drum output to generate saturated vapor, then send described drum back to;
At least one secondary heat exchanger is used for utilizing phosphorus Steam Heating that Yellow phosphorus furnace discharges from the water of described first-class heat exchanger output and generates saturated vapor, then sends into described drum;
Scrubbing tower links to each other with the phosphorus steam (vapor) outlet of described secondary heat exchanger, is used for washing described 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 furnace heat energy comprehensive reutilization according to claim 1 system, it is characterized in that: described receipts phosphorus groove links to each other with the washing water inlet of described scrubbing tower by a water circulating pump;
The hot water that saturated vapor generates after electricity generation system is sent described first-class heat exchanger and/or described combustion furnace back to.
3. Yellow phosphorus furnace heat energy comprehensive reutilization according to claim 1 and 2 system characterized by further comprising: be used for the suction fresh air air dryer, be used for the dry air of this air dryer output of heating air heat exchanger, be used for the heated drying air that this air heat exchanger generates is sent into the blower fan of described combustion furnace;
The exhaust port of described combustion furnace links to each other with the thermal source gas access of described air heat exchanger, to heat described dry air.
4. Yellow phosphorus furnace heat energy comprehensive reutilization according to claim 1 system, it is characterized in that: high-temperature slag thermal recycle system comprises: cylindrical shell (1) is provided with the fire grate (2) that is used for described 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 described cylindrical shell (1) top is provided with heat exchanger (5);
The feeding mouth of described cylindrical shell (1) is provided with a pair of particle roller (6) for charging and the described high temperature furnace slag of cooled and solidified, this is provided with drapery panel (18) and the distribute roll (4) that adjacent parallel arranges to particle roller (6) below, be ground into graininess after being used for to fall into the further cooled and solidified of described high temperature furnace slag between this drapery panel (18) and the distribute roll (4), and this granule materials is delivered on the described fire grate (2).
5. Yellow phosphorus furnace heat energy comprehensive reutilization according to claim 4 system, it is characterized in that: described 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 for the described high temperature furnace slag air blast on drapery panel (18);
Described 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 arranges, and it is used for carrying on the concave surface of described high temperature furnace slag heat and is distributed with sawtooth, the bottom of the contiguous described distribute roll of the bottom margin of arc (4);
Be distributed with tapered protrusion on the cylinder of described distribute roll (4), be used for the crushing material on this drapery panel and deliver to described fire grate (2).
6. Yellow phosphorus furnace heat energy comprehensive reutilization according to claim 5 system, it is characterized in that: in the described cylindrical shell (1), be provided with material scraping plate (7) in the downstream of described distribute roll (4) and in described fire grate (2) top, so that the material on the described fire grate (2) is evenly distributed;
Described material scraping plate (7) is suitable for letting in air, and the hot blast that passes successively the high temperature furnace slag on the described drapery panel (18) is suitable for by this material scraping plate (7) and enters in the described heat exchanger (5) adjacent with this material scraping plate (7); The exhaust outlet that is used for discharge heat exchange air of this heat exchanger (5) links to each other with described each air-blast nozzle through air blast (17).
7. Yellow phosphorus furnace heat energy comprehensive reutilization according to claim 4 system, it is characterized in that: the aperture distribution at described 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 entrance input of the heat exchanger (5) of the discharging opening of contiguous described cylindrical shell (1);
The exhaust outlet that is used for discharge heat exchange air at each heat exchanger (5) top is connected with respectively circulating gas pipe (8), each circulating gas pipe (8) is passed the sidewall of described cylindrical shell (1) and is extended in the described cylindrical shell (1), the gas outlet of each circulating gas pipe is between the upper and lower layer band of described fire grate (2) and the bottom surface of the contiguous described epipelagic zone in each gas outlet and arranging up, is suitable for the cycling hot air-flow that upwards penetrates described epipelagic zone and act on described heat exchanger (5) with formation cylindrical shell (1) in.
8. Yellow phosphorus furnace heat energy comprehensive reutilization according to claim 7 system, it is characterized in that: the inwall of described particle roller (6) is provided with along the spiral heat exchange tube axial distribution of this particle roller (6), that be used for heating described water, and this spiral heat exchange tube is that opening is welded on the semi-circular tube on described particle roller (6) inwall;
The two ends central authorities of described particle roller (6) are respectively equipped with into liquid, fluid hollow rotating shaft; This distinguishes bearing fit on pair of bearing to hollow rotating shaft, and between the heat exchanger tube in the heat exchanger (5) that the spiral heat exchange tube in the described particle roller (6) is connected on hollow rotating shaft by this and the discharging opening of described cylindrical shell (1) is contiguous; Or the bottom coil pipe of the heat exchanger tube in one or more heat exchangers (5) of described spiral heat exchange tube and the discharging opening of contiguous described cylindrical shell (1) is in parallel;
Enter liquid, the outlet end of described spiral heat exchange tube link to each other with the described inner port that enters liquid, fluid hollow rotating shaft respectively; Or the outlet end of described spiral heat exchange tube links to each other with the inner port of described fluid hollow rotating shaft, and the liquid inlet of described spiral heat exchange tube is in this particle roller (6) and extend to contiguous described fluid hollow rotating shaft.
9. Yellow phosphorus furnace 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), the cavity and up and down relative distribution of a described heat exchanger (5) that consist of between the adjacent a pair of shifting board (10) in the described cylindrical shell (1) and in described epipelagic zone below; The air of the exhaust outlet at a described heat exchanger (5) top output is suitable for delivering in the described cavity under this heat exchanger (5) by described circulating gas pipe (8);
Described 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 exchanging pipe in the heat exchanger (5) interts on described spiral wind deflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203159444U CN202769618U (en) | 2012-06-29 | 2012-06-29 | Yellow phosphorus furnace heat energy comprehensive recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203159444U CN202769618U (en) | 2012-06-29 | 2012-06-29 | Yellow phosphorus furnace heat energy comprehensive recycling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202769618U true CN202769618U (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203159444U Expired - Fee Related CN202769618U (en) | 2012-06-29 | 2012-06-29 | Yellow phosphorus furnace heat energy comprehensive recycling system |
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| Country | Link |
|---|---|
| CN (1) | CN202769618U (en) |
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2012
- 2012-06-29 CN CN2012203159444U patent/CN202769618U/en not_active Expired - Fee Related
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