CN202630706U - Yellow phosphorus electric furnace smelting furnace slag waste heat recovery device - Google Patents

Yellow phosphorus electric furnace smelting furnace slag waste heat recovery device Download PDF

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Publication number
CN202630706U
CN202630706U CN2012202553994U CN201220255399U CN202630706U CN 202630706 U CN202630706 U CN 202630706U CN 2012202553994 U CN2012202553994 U CN 2012202553994U CN 201220255399 U CN201220255399 U CN 201220255399U CN 202630706 U CN202630706 U CN 202630706U
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water
electric furnace
pump
power transfer
thermal power
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Expired - Fee Related
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CN2012202553994U
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张铭泰
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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
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency
    • 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
    • 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
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

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Abstract

The utility model discloses a yellow phosphorus electric furnace smelting furnace slag waste heat recovery device which comprises a slag bath, a heat energy conversion pool, a heat exchanger, a sludge pump, a water quenching water pump, a circulating pump, a hot water tank, a condensing tower, a phosphorus tank and a refining tank. The heat energy of high-temperature flushing cinder wastewater after the yellow phosphorus electric furnace smelting furnace slag is subjected to water quenching is converted, and process water is heated, so that the temperature is over 70 DEG C, the process water serves as make-up water of the boiler and is provided for the process and device with the heating requirements, and the residual part can serve as domestic heat supply. Compared with a general device, the yellow phosphorus electric furnace smelting furnace slag waste heat recovery device has high heat energy conversion efficiency of waste heat recovery, and the energy-saving and consumption-reducing effects are obvious.

Description

Yellow phosphorus electric furnace molten slag waste-heat recovery device
Technical field
The utility model relates to waste-heat recovery device, is specifically related to a kind of yellow phosphorus electric furnace molten slag waste-heat recovery device.
Background technology
The yellow phosphorus electric furnace molten slag contains quite abundant heat (temperature of slag is at 1436 ℃).Present domestic phosphorus production generally all adopts water quenching technology.Promptly one flushing cinder pond is set, whenever once at a distance from 4 hours deslagginves at yellow phosphorus stove slag notch.Molten slag flows directly in the slag bath, and power per hour produces yellow phosphorus (P at the yellow phosphorus electric furnace device of 2000KvA scale 4) 1 ton.Bed drain purge once was more than 32 tons in 4 hours.The molten slag heat that is equivalent to get into slag bath is at 1,400 ten thousand (Kcal), and this heat can let the temperature of 240 side's shrend water reach 98 ℃.
The volume of general collection slag bath is about 400 cubic metres, and it must hold 240 sides above shrend water and the Water Quenching Slag more than 32 tons.Guarantee to absorb its heat with enough shrend electric furnace molten slags.In each deslagging gap, the Water Quenching Slag in the slag bath is salvaged the draining outward transport with the driving grab bucket.Guarantee the deslagging again after 4 hours.
Shrend water in the collection slag bath is poisonous, does not allow to efflux, and therefore can only carry out closed circulation.In order to reach recirculated water sealing, must guarantee that yellow phosphorus sewage operates under the depletion condition.The depletion condition is mainly realized by the loss of flushing cinder water.The loss of flushing cinder water mainly is made up of two aspects: the water evaporation and the disintegrating slag that is attached to that effluxes phosphorus slag are taken away during flushing cinder.Approximately per hour need replenish nearly 2 sides' shrend water.
At present, phosphorus production enterprise mostly with heat-exchanger pump with the hot water through the top of post precipitation slightly in the slag bath, deliver to the rear portion system, be used to receive the phosphorus spray or supply refinery pit to float phosphorus and use.
Because slag bath water contains impurity and harmful chemical component, directly utilizes the scope of shrend water to be limited to.Therefore how to utilize the molten slag sensible heat, and improve the waste heat recovery rate as far as possible, enterprise is just seemed very necessary.
The utility model content
The purpose of the utility model is in order to overcome the technological deficiency of above-mentioned existence, to provide a kind of waste heat recovery rate higher yellow phosphorus electric furnace molten slag waste-heat recovery device.
The technical scheme that the utility model is adopted to achieve these goals is following: a kind of yellow phosphorus electric furnace molten slag waste-heat recovery device; It comprises slag bath, thermal power transfer pond, heat exchanger, scum pump, shrend water pump, circulating pump, hot water storgae, condensing tower, receives phosphorus groove and refinery pit
It is characterized in that: said slag bath is arranged on the slag notch below of electric furnace, the adjacent setting with slag bath in said thermal power transfer pond and be communicated with slag bath; Said heat exchanger is installed in the thermal power transfer pond, and the outlet pipe of this heat exchanger water inlet pipe connection technology water pump, and the outlet pipe of heat exchanger is connected to condensing tower and electric furnace;
Said circulating pump water inlet pipe connects hot water storgae, and the outlet pipe of outlet pipe and shrend water pump converges into a pipeline;
Said thermal power transfer pond also connects the water inlet pipe of scum pump and shrend water pump, and the shrend pumping line connects condensing tower, and said phosphorus groove and the refinery pit of receiving is successively set on the condensing tower below.
According to the yellow phosphorus electric furnace molten slag waste-heat recovery device described in the utility model, it is characterized in that the residue outlet bifurcated of said scum pump is in charge of, be in charge of the bottom that is connected to slag bath and thermal power transfer pond respectively for two.
According to the yellow phosphorus electric furnace molten slag waste-heat recovery device described in the utility model, it is characterized in that the water inlet pipe water sucking mouth of said shrend water pump is arranged on 2/3rds eminences in thermal power transfer pond.
According to the yellow phosphorus electric furnace molten slag waste-heat recovery device described in the utility model, it is characterized in that also comprising and contain the phosphorus device that this Sheng phosphorus device is arranged on by the refinery pit.
The utility model has the advantages that: one, the utility model need not be considered to contain phosphorus slag in the slag bath shrend water, is carrying out thermal energy exchange after need not waiting contamination precipitation.Can not grab the slag operation and wait for that kind can make the shrend coolant-temperature gage descend, loss heat energy because of each deslagging of electric furnace and driving.Let shrend water when high temperature, get into switch without a break, improve thermal conversion rate.Two, the utility model can utilize the recoiling device of scum pump, in time removes the phosphorus slag of thermal power transfer pond deposition, does not allow the account for dischargeable capacity of conversion pool of the volume of phosphorus slag.Three, the utility model utilizes the deposition function that the thermal power transfer pond has; Can general factory be utilized heat-exchanger pump shrend water in circulatory pool; Supply with spray scrubber receive phosphorus and the water sucking mouth that supplies refinery pit to float phosphorus be located at the thermal power transfer pond far from the bottom 2/3rds eminence; Can improve circulating water quality, also strengthen the exchange water yield in thermal power transfer pond simultaneously.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is a yellow phosphorus electric furnace molten slag waste-heat recovery device process flow diagram.
Among the figure: the 1-electric furnace, the 2-slag bath, 3-thermal power transfer pond, the 4-heat exchanger, the 5-scum pump, 6-shrend water pump, the 7-circulating pump, the 8-hot water storgae, 9-condensing tower, 10-receive the phosphorus groove, the 11-refinery pit, 12-technology water pump, 13-contains the phosphorus device.
The specific embodiment
Below in conjunction with accompanying drawing the technical scheme of the utility model is done to further describe, but the utility model is not limited in following embodiment.
As shown in Figure 1: a kind of yellow phosphorus electric furnace molten slag waste-heat recovery device, it comprises slag bath 2, thermal power transfer pond 3, heat exchanger 4, scum pump 5, shrend water pump 6, circulating pump 7, hot water storgae 8, condensing tower 9, receives phosphorus groove 10 and refinery pit 11.Also comprise and contain phosphorus device 13, it is other that this Sheng phosphorus device 13 is arranged on refinery pit 11.
Wherein slag bath 1 is arranged on the slag notch below of electric furnace 1, and thermal power transfer pond 3 is communicated with slag bath 2 adjacent settings and with slag bath 2.Heat exchanger 4 is installed in the thermal power transfer pond 3, and the outlet pipe of this heat exchanger 4 water inlet pipes connection technology water pump 12, and the outlet pipe of heat exchanger 4 is connected to condensing tower 9 and electric furnace 1 respectively.
Said circulating pump 7 water inlet pipes connect hot water storgae 8, and the outlet pipe of outlet pipe and shrend water pump 6 converges into a pipeline, gets into condensing tower then.
Said thermal power transfer pond 3 also connects the feed tube of scum pump 5 and shrend water pump 6, and shrend water pump 6 outlet pipes connect condensing tower, and said phosphorus groove 10 and the refinery pit 11 of receiving is successively set on condensing tower 9 belows.The water inlet pipe water sucking mouth of shrend water pump 6 is arranged on 2/3rds eminences in thermal power transfer pond 3.
The residue outlet bifurcated of said scum pump 5 is in charge of, and is in charge of the bottom that is connected to slag bath 2 and thermal power transfer pond 3 respectively for two.
The fresh water (FW) of fresh water (FW) water inlet pipe gets into high-performance heat exchanger 4 through heat absorption through technology water pump 12 in the utility model, and water temperature is seen off by the process heat water pipe after reaching more than 70 ℃; A part is made boiler water-filling; A part is as the hot shower water of spray scrubber, and remaining part can be used as plant area's life with hot water or make yellow phosphorus and pack heat supply water.
Said thermal power transfer pond 3 bottommosts are provided with scum pump recoil pipeline, and intermittent the unlatching, and the deposition phosphorus slag of bottom, thermal power transfer pond is removed in flushing.There are scum pump 5 sucking-off pumpings to reduce in slag bath 2 through the shrend water after the thermal power transfer.
The water sucking mouth of said shrend water pump 6 is arranged on thermal power transfer pond 2/3rds eminences, goes out to manage pump to condensing tower through shrend water, is used to receive the phosphorus spray or supplies refinery pit to float phosphorus use.
The practical implementation method of the utility model recovery waste heat, its step is following:
Step 1, let the high-temperature water hardening of yellow phosphorus electric furnace melting furnace slag bath,, flow into the thermal power transfer pond through shrend water tube connector;
Step 2, technology water pump pump into the high-performance heat exchanger that is arranged in the thermal power transfer pond with fresh water (FW), carry out the heat energy displacement;
Step 3, water temperature is risen to process heat water more than 70 ℃ deliver to the technology and the device of demand for heat respectively and utilize.
Step 4, employing scum pump are sent the shrend water pump that is recovered partial heat energy in the thermal power transfer pond back to slag bath.
Step 5, the intermittent scum pump recoiling device of opening are scum pump is connected the bottom with the thermal power transfer pond pipeline, the precipitation slag of bottom, cleaning thermal power transfer pond.
Step 6, utilize the shrend water pump to be arranged on the water sucking mouth at 2/3rds places, thermal power transfer pond, suck shrend water, pump to condensing tower and refinery pit are used to receive the phosphorus spray or float phosphorus and use.
Step 7, the surplus hot water is delivered to life heating plant.
Injection technology water carries out waste heat recovery in the thermal power transfer pond, water temperature can rise to more than 70 ℃.The technology that offering heating then needs is utilized with device.
The utility model is because scum pump constantly returns the shrend water pump in the thermal power transfer pond to slag bath, and the water temperature of slag bath adds to the thermal power transfer pond at 80 ℃-90 ℃ shrend water through connecting pipeline.Fresh water (FW) injects efficient heat exchanger through the technology water pump and carries out the preheating recovery, and the water outlet mean temperature is more than 70 ℃.A 2000KvA electric furnace of producing 7500 tons of yellow phosphorus per year through waste-heat recovery device, per hour can provide 5 tons of average water temperatures at the technology hot water more than 70 ℃.It can save the fire coal consumption that reduces boiler widely except satisfying and the supplementing water of producing 3-5 tons of supporting Industrial Boilers.Can also improve the phosphorus yield as the hot shower water of spray scrubber simultaneously.Remainder can be used as life heat supply in the factory.
The utility model technology is to adopt waste-heat recovery device, the heat of the high temperature flushing cinder waste water after the shrend of yellow phosphorus electric furnace molten slag is adorned changed heating process water.Its temperature is reached more than 70 ℃, remake the supplementing water into boiler, and offer technology and device utilization that heating needs, remainder can also be as the life heat supply.The utility model is that the thermal energy conversion rate of waste heat recovery more generally installs height, and energy conservation and consumption reduction effects is more remarkable.

Claims (4)

1. yellow phosphorus electric furnace molten slag waste-heat recovery device; It comprises slag bath (2), thermal power transfer pond (3), heat exchanger (4), scum pump (5), shrend water pump (6), circulating pump (7), hot water storgae (8), condensing tower (9), receives phosphorus groove (10) and refinery pit (11)
It is characterized in that: said slag bath (1) is arranged on the slag notch below of electric furnace (1), and said thermal power transfer pond (3) is communicated with the adjacent setting of slag bath (2) and with slag bath (2); Said heat exchanger (4) is installed in the thermal power transfer pond (3), and the outlet pipe of this heat exchanger (4) water inlet pipe connection technology water pump (12), and the outlet pipe of heat exchanger (4) is connected to condensing tower (9) and electric furnace (1);
Said circulating pump (7) water inlet pipe connects hot water storgae (8), and the outlet pipe of outlet pipe and shrend water pump (6) converges into a pipeline;
Said thermal power transfer pond (3) also connects the feed tube of scum pump (5) and shrend water pump (6), and shrend water pump (6) outlet pipe connects condensing tower (9), and said phosphorus groove (10) and the refinery pit (11) of receiving is successively set on condensing tower (9) below.
2. yellow phosphorus electric furnace molten slag waste-heat recovery device according to claim 1 is characterized in that the residue outlet bifurcated of said scum pump (5) is in charge of, and is in charge of the bottom that is connected to slag bath (2) and thermal power transfer pond (3) respectively for two.
3. yellow phosphorus electric furnace molten slag waste-heat recovery device according to claim 1 is characterized in that the water inlet pipe water sucking mouth of said shrend water pump (6) is arranged on 2/3rds eminences in thermal power transfer pond (3).
4. yellow phosphorus electric furnace molten slag waste-heat recovery device according to claim 1 is characterized in that also comprising and contains phosphorus device (13) that it is other that this Sheng phosphorus device (13) is arranged on refinery pit (11).
CN2012202553994U 2012-06-01 2012-06-01 Yellow phosphorus electric furnace smelting furnace slag waste heat recovery device Expired - Fee Related CN202630706U (en)

Priority Applications (1)

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CN2012202553994U CN202630706U (en) 2012-06-01 2012-06-01 Yellow phosphorus electric furnace smelting furnace slag waste heat recovery device

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Application Number Priority Date Filing Date Title
CN2012202553994U CN202630706U (en) 2012-06-01 2012-06-01 Yellow phosphorus electric furnace smelting furnace slag waste heat recovery device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104556752A (en) * 2015-01-28 2015-04-29 贵州省瓮安县瓮福黄磷有限公司 Method for cooling yellow phosphorus furnace slags by air quenching
CN109995273A (en) * 2019-04-02 2019-07-09 南京华电节能环保设备有限公司 A kind of high-temperature slag thermo-electric generation recyclable device and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104556752A (en) * 2015-01-28 2015-04-29 贵州省瓮安县瓮福黄磷有限公司 Method for cooling yellow phosphorus furnace slags by air quenching
CN109995273A (en) * 2019-04-02 2019-07-09 南京华电节能环保设备有限公司 A kind of high-temperature slag thermo-electric generation recyclable device and method

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Granted publication date: 20121226

Termination date: 20150601

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