CN110559783B - Device and method for purifying yellow phosphorus furnace gas by low-temperature dry method - Google Patents
Device and method for purifying yellow phosphorus furnace gas by low-temperature dry method Download PDFInfo
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- CN110559783B CN110559783B CN201910917914.7A CN201910917914A CN110559783B CN 110559783 B CN110559783 B CN 110559783B CN 201910917914 A CN201910917914 A CN 201910917914A CN 110559783 B CN110559783 B CN 110559783B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/02—Preparation of phosphorus
- C01B25/027—Preparation of phosphorus of yellow phosphorus
Abstract
The invention discloses a device and a method for purifying yellow phosphorus furnace gas by a low-temperature dry method, wherein the device comprises an impact type dust remover, a heater, a metal felt dust remover, a yellow phosphorus condensation tower and a spiral ash discharger, an outlet pipe of the yellow phosphorus furnace gas is directly connected with an inlet of the impact type dust remover, an outlet of the impact type dust remover is connected with an inlet of the heater, an outlet of the heater is communicated with an inlet of the metal felt dust remover, a gas outlet of the metal felt dust remover is connected with an inlet of the yellow phosphorus condensation tower, a dust outlet at the bottom of the impact type dust remover, a dust outlet at the bottom of the heater and a dust outlet at the bottom of the metal felt dust remover are hermetically communicated with a dust inlet of the closed spiral ash discharger, and an air outlet of the yellow phosphorus condensation tower is an air outlet of the device. The device has simple structure, saves energy consumption and can solve the problem of solid material blockage at the furnace gas outlet.
Description
Technical Field
The invention relates to the technical field of energy conservation and emission reduction in yellow phosphorus production, in particular to a device and a method for purifying yellow phosphorus furnace gas by a low-temperature dry method.
Background
The productivity and the yield of the yellow phosphorus in China all account for about 85 percent of the world, but the current yellow phosphorus industry is still a high-energy-consumption and high-pollution industry. The main method for producing yellow phosphorus by an industrial electric furnace method is to weigh qualified massive phosphorite, coke and silica and then send the weighed materials to a yellow phosphorus electric furnace bin; the mixed furnace charge enters a yellow phosphorus electric furnace through a blanking pipe, a reduction reaction is carried out under the action of electric heat, the generated furnace gas directly enters a three-stage or four-stage condensing tower for spray cooling to prepare crude phosphorus, and then the crude phosphorus is subjected to multi-stage refining, repeated cooking, rinsing, filtering, settling, condensation and impurity removal to obtain a yellow phosphorus product. Because the furnace gas at the outlet of the yellow phosphorus electric furnace contains a large amount of dust which enters a crude phosphorus product together with yellow phosphorus in the yellow phosphorus condensation process, and the crude phosphorus generates a large amount of sewage and sludge phosphorus in the refining process, serious environmental pollution and high treatment cost are caused. If the recovery of the phosphorus sludge is generally carried out by adopting a boiler-rotating method, namely yellow phosphorus tail gas is combusted and heated outside a boiler, firstly, about 60-70% of water in the phosphorus sludge is evaporated, then, the temperature of a hearth is gradually increased to 700-800 ℃ so as to evaporate and condense the phosphorus, so that the phosphorus content of residues is reduced to below 1%, and the operation cycle of phosphorus evaporation in each boiler is generally 6-8 hours; the method has long time consumption, high energy consumption and serious environmental pollution during combustion and slag discharge, and is a key core technology to be solved urgently in yellow phosphorus production.
In order to solve the problem that dust is brought into a condensing system to produce sludge phosphorus as a byproduct, a series of research and industrial development are carried out at home and abroad, for example, a 30kt/a yellow phosphorus device is provided with an electric dust collector at the outlet of a yellow phosphorus electric furnace, but firstly, the method needs to sinter ores entering the furnace into balls, so that the cost is increased; secondly, the temperature of furnace gas entering the dust remover is required to be higher than 600 ℃; thirdly, heat preservation is carried out on all control systems by using 300-350 ℃ inert gas; the comprehensive cost of yellow phosphorus per ton is up to 2400 yuan, and the generation of phosphorus sludge cannot be completely eradicated due to the problem of electric precipitation efficiency. CN103708432A discloses a method, equipment and a special phosphorus collecting device for recovering yellow phosphorus from furnace gas for making phosphorus by an electric furnace, wherein the invention requires the operating temperature to be 187.5-280 ℃; CN103523762A discloses a method and equipment for producing yellow phosphorus, which adopts sintered inorganic porous material to prepare a filter element, and requires the operating temperature to be 187.5-280 ℃. CN103708432A and CN103523762A both refer to the requirement of 187.5-280 ℃ for operating temperature, while the temperature of the furnace gas outlet of the phosphorus furnace commonly used in China is only 110-140 ℃, the gas temperature needs to be increased to 187.5-280 ℃, a large amount of heat needs to be consumed, and the heat needs to be taken away again in the yellow phosphorus condensation tower to maintain the heat balance of the system. CN205442645U discloses a heat preservation system of yellow phosphorus furnace gas dry method dust collecting equipment, adopts the burning yellow phosphorus tail gas to burn and indirectly supply heat preservation for the dust collecting equipment, and the power consumption is big, and is inefficient, and the yellow phosphorus tail gas contains impurity such as phosphorus, fluorine can cause very big corruption to equipment. CN105056641A discloses a 'yellow phosphorus furnace gas filtering method', which adopts a shutdown replacement mode, and introduces oxygen-containing gas to burn yellow phosphorus attached to the surface of a filter membrane, thereby ensuring the normal operation of a filtering device. These inventions all require heating the filtered furnace gas to a temperature above 187.5 ℃, increasing energy consumption.
Disclosure of Invention
The invention aims to solve the technical problem of how to provide a device for purifying yellow phosphorus furnace gas by a low-temperature dry method, which has a simple structure, saves energy consumption and can solve the problem of blockage of solid materials at a furnace gas outlet.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a device for purifying yellow phosphorus furnace gas by a low-temperature dry method is characterized in that: including impact dust remover, heater, metal felt dust remover, yellow phosphorus condensing tower and spiral dust discharging machine, the outlet pipe of yellow phosphorus electric stove burner gas directly links to each other with the entry of impact dust remover, the export of impact dust remover with the entry of heater links to each other, the export of heater and the import intercommunication of metal felt dust remover, the gas outlet of metal felt dust remover with the access connection of yellow phosphorus condensing tower, the dust export of impact dust remover bottom, the dust export of heater bottom, the dust export of metal felt dust remover bottom and the sealed intercommunication of dust import of closed spiral dust discharging machine, the gas outlet of yellow phosphorus condensing tower does the gas vent of device.
The further technical scheme is as follows: the impact type dust remover comprises an upper cylindrical part and a lower conical part, wherein an inlet is formed in the conical surface of the lower conical part, a yellow phosphorus electric furnace outlet pipe vertically extends into the top of the impact type dust remover from the inlet in the conical surface, a partition plate is fixed in the upper cylindrical part, the upper cylindrical part is divided into a left part and a right part through the partition plate, a furnace gas outlet pipe is arranged on the upper side of the upper cylindrical part and inserted into the heater, the upper cylindrical part and the lower conical part are of a steam jacket structure, a dust outlet pipe is arranged at the conical tip of the lower conical part, and the dust outlet pipe is inserted into the closed spiral dust remover.
The further technical scheme is as follows: the metal felt in the metal felt dust remover is made of 316 or 310S stainless steel materials and is woven by 316 or 310S stainless steel fibers; the surface pores of the metal felt are smaller than 1 mu m, the filtration is surface filtration, a thicker filter cake is not formed, and dust with the particle size larger than or equal to 1 mu m is intercepted on the surface of the superfine fiber through screening, interception, collision and electrostatic action when the dust-containing phosphorus-containing furnace gas passes through the metal filter material.
The further technical scheme is as follows: when the filtering air speed of the metal felt dust remover is 0.8-1.1 m/min, the dust concentration in the phosphorus-containing furnace gas is lower than 5mg/Nm after passing through the metal felt filter3(ii) a When the filtering wind speed is 1.2-1.5 m/min, the dust concentration in the phosphorus-containing furnace gas is lower than 10mg/Nm after passing through the metal felt filter3。
The further technical scheme is as follows: the heat source of the heater is one or a combination of several of steam, infrared, microwave and high-temperature combustion flue gas.
The invention also discloses a method for purifying the yellow phosphorus furnace gas by a low-temperature dry method, which is characterized by comprising the following steps of:
discharging yellow phosphorus furnace gas discharged by a yellow phosphorus electric furnace into an impact type dust remover for dust removal treatment, removing dust with the particle size of more than 20 microns in the yellow phosphorus furnace gas by the impact type dust remover, and performing heat preservation and heating on the outer wall of the impact type dust remover by adopting steam to prevent condensable gas from being condensed; and (2) heating the dedusted gas in a heater, heating the yellow phosphorus furnace gas to 150-180 ℃, inputting the yellow phosphorus furnace gas into a metal felt deduster, further removing dust with the particle size of 1-20 mu m, directly producing a yellow phosphorus product from the dedusted and purified yellow phosphorus furnace gas in a yellow phosphorus condensation tower, and discharging the dust generated by the impact deduster, the heater and the metal felt deduster into a closed spiral dust discharging machine.
The further technical scheme is as follows: the wall temperature of the impact dust remover is kept at 140-150 ℃ by heating the wall surface of the impact dust remover by steam.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: 1) realizes the dry dedusting and purification, and cancels a phosphorus floating and sludge recovery device. The device realizes the separation of phosphorus steam and dust before entering a condensation process, does not produce sludge phosphorus in the subsequent process, eliminates the energy consumption and pollution of the recovery of the phosphorus bleaching and sludge phosphorus, reduces the production cost of the yellow phosphorus, and saves hot water (or steam) for supplying the phosphorus bleaching and the tail gas of a phosphorus furnace for recovering the sludge phosphorus. 2) And energy consumption is saved. The furnace gas control temperature of the metal felt dust remover equipment in the device is 150-180 ℃, the temperature is low, and the energy consumption is low. 3) The direct insertion of the outlet pipe of the yellow phosphorus electric furnace into the impact type dust remover structure solves the problem of blockage of solid materials at the outlet of the furnace gas. 4) According to the invention, a combined mode of the impact dust remover and the metal felt filter is adopted, firstly, dust particles larger than 20 microns are removed by the impact dust remover, then, tiny particles of 1-20 microns are removed by the metal felt filter, and two-stage dust removal is adopted, so that the dust removal efficiency is improved. 5) Compared with the traditional process, the yield of the primary phosphorus is improved by 5-8%, the production labor intensity of operators is reduced, and the safety of the system is improved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic diagram of the structure of the apparatus in an embodiment of the present invention;
FIG. 2 is a schematic front view of an impact precipitator in the apparatus according to the embodiment of the present invention;
FIG. 3 is a schematic top view of an impact precipitator in an apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the construction of a metal felt dust collector in an apparatus according to an embodiment of the invention;
wherein: 1. an impact type dust remover; 101. an outlet pipe of the yellow phosphorus electric furnace; 102. a partition plate; 103. a furnace gas outlet pipe; 104. a steam jacket; 105. a dust outlet pipe; 2. a heater; 3. a metal felt dust remover; 31. a metal felt; 32. a high temperature flue gas inlet; 32. a high-temperature flue gas outlet; 4. a yellow phosphorus condensing tower; 5. spiral dust exhauster.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in figure 1, the embodiment of the invention discloses a device for purifying yellow phosphorus furnace gas by a low-temperature dry method, which comprises an impact type dust remover 1, a heater 2, a metal felt dust remover 3, a yellow phosphorus condensing tower 4 and a spiral ash discharger 5. The outlet pipe 101 of yellow phosphorus electric furnace gas directly links to each other with the entry of striking formula dust remover 1, the export of striking formula dust remover 1 with the entry of heater 2 links to each other, the export of heater 2 and the import intercommunication of metal felt dust remover 3, the gas outlet of metal felt dust remover 3 with the access connection of yellow phosphorus condensing tower 4, the dust export of striking formula dust remover 1 bottom, the dust export of heater 2 bottom, the dust export of metal felt dust remover 3 bottom and the sealed intercommunication of dust import of closed spiral dust extractor 5, the gas outlet of yellow phosphorus condensing tower 4 is the gas vent of device.
As shown in fig. 2-3, the impact dust collector 1 includes an upper cylindrical portion and a lower conical portion, an inlet is provided on a conical surface of the lower conical portion, a yellow phosphorus electric furnace outlet pipe 101 vertically extends into the top of the impact dust collector 1 from the inlet on the conical surface, a partition plate 102 is fixed in the upper cylindrical portion, the upper cylindrical portion is divided into a left part and a right part by the partition plate 102, a furnace gas outlet pipe 103 is provided on an upper side of the upper cylindrical portion, the furnace gas outlet pipe 103 is inserted into the heater 2, and a heat source of the heater 2 is one or a combination of several of steam, infrared, microwave and high-temperature combustion flue gas. The upper cylindrical part and the lower conical part are of a steam jacket 104 structure, a dust outlet pipe 105 is arranged at the conical tip of the lower conical part, steam can be introduced into the steam jacket 104 structure to heat and preserve heat of gas in the steam jacket 104 structure, and the dust outlet pipe is inserted into the closed spiral ash discharger 5.
As shown in fig. 4, the metal felt 31 in the metal felt dust collector 3 is made of 316 or 310S stainless steel and is woven by 316 or 310S stainless steel fibers; the surface pores of the metal felt 31 are smaller than 1 μm, the filtration is surface filtration, no thick filter cake is formed, and dust larger than or equal to 1 μm is intercepted on the surface of the superfine fiber through screening, interception, collision and electrostatic action when the dust-containing phosphorus-containing furnace gas passes through the metal filter material. When the filtering air speed of the metal felt dust remover 3 is 0.8-1.1 m/min, the dust concentration in the phosphorus-containing furnace gas is lower than 5mg/Nm after passing through the metal felt filter 33(ii) a When the filtering wind speed is 1.2-1.5 m/min, the dust concentration in the phosphorus-containing furnace gas is lower than 10mg/Nm after passing through the metal felt filter3。
The embodiment of the invention also discloses a method for purifying yellow phosphorus furnace gas by a low-temperature dry method, which comprises the following steps:
discharging yellow phosphorus furnace gas discharged by a yellow phosphorus electric furnace into an impact type dust remover 1 for dust removal treatment, removing dust with the particle size of more than 20 microns in the yellow phosphorus furnace gas by the impact type dust remover 1, and preventing condensable gas from condensing by adopting steam for heat preservation and heating on the outer wall of the impact type dust remover 1, preferably, heating the wall surface of the impact type dust remover 1 by using steam to keep the wall temperature of the impact type dust remover) at 140-; the dedusted gas enters a heater 2 for heating treatment, the yellow phosphorus furnace gas is heated to 150-180 ℃, then the yellow phosphorus furnace gas is input into a metal felt deduster 3 for further removing dust with the particle size of 1-20 mu m, the yellow phosphorus furnace gas after dedusting and purification directly produces yellow phosphorus products through a yellow phosphorus condensation tower 4, and the dust generated by the impact deduster 1, the heater 2 and the metal felt deduster 3 is discharged into a closed spiral dust discharge machine 5.
Furthermore, before the yellow phosphorus electric furnace (also called phosphorus furnace) is put into operation, a steam inlet valve of a jacket of the impact type dust remover is opened, steam is introduced, a heater is started, and the temperature is controlled to be 150-180 ℃. Starting the electric furnace, and feeding the furnace gas of the operated phosphorus furnace into an impact type dust remover, a heater, a metal felt dust remover and a yellow phosphorus condensing tower respectively, wherein the impact type dust remover removes dust particles with the particle size of more than 20 microns, and the part of particles accounts for 75-80% of the total dust amount; the furnace gas passing through the impact type dust remover enters a heater to further remove dust particles larger than 1 mu m, in order to ensure that the impact type dust remover and the metal felt dust remover are not blocked by substances lower than a dew point, the impact type dust remover adopts wall surface heat preservation and heating measures, and the gas before entering the metal felt dust remover is heated by the heater. The dust settled and filtered by the impact dust remover, the heater and the metal felt dust remover enters a closed spiral dust discharging machine discharging system through the respective lower conical hoppers. In order to save energy, heat preservation measures are required to be taken for pipelines of equipment for purifying yellow phosphorus furnace gas by a dry method, so that heat exchange between furnace gas and the outside is reduced.
Example one
The temperature of furnace gas of the phosphorus furnace at the outlet is 110 ℃, the furnace gas enters an impact type dust remover to remove dust particles with the particle size of more than 20 microns, the wall surface of the impact type dust remover is controlled to be 120-130 ℃, then the furnace gas enters a steam heater, the temperature of the furnace gas is heated to 150 ℃, then the furnace gas enters a metal felt dust remover, and the dust with the particle size of more than 1 micron is removed in the metal felt dust remover. And the phosphorus-containing furnace gas separated from the dust enters a yellow phosphorus condensation system to prepare a yellow phosphorus finished product. The dust settled and filtered by the impact dust remover, the heater and the metal felt dust remover enters a closed spiral dust discharging machine discharging system through the respective lower conical hoppers.
Example two
The temperature of furnace gas of the phosphorus furnace at the outlet is 130 ℃, the furnace gas enters an impact type dust remover to remove dust particles with the particle size of more than 20 microns, the wall surface of the impact type dust remover is controlled to be 140-150 ℃, then the furnace gas enters an infrared heater, the temperature of the furnace gas is heated to 170 ℃, then the furnace gas enters a metal felt dust remover, and the dust with the particle size of more than 1 micron is removed in the metal felt dust remover. And the phosphorus-containing furnace gas separated from the dust enters a yellow phosphorus condensation system to prepare a yellow phosphorus finished product. The dust settled and filtered by the impact dust remover, the heater and the metal felt dust remover enters a closed spiral dust discharging machine discharging system through the respective lower conical hoppers.
EXAMPLE III
The temperature of furnace gas at an outlet of the phosphorus furnace is 145 ℃, the furnace gas enters an impact type dust remover to remove dust particles with the particle size of more than 20 microns, the wall surface of the impact type dust remover is controlled to be 150 ℃, then the furnace gas enters a flue gas heater, the temperature of the furnace gas is heated to 180 ℃, then the furnace gas enters a metal felt dust remover, and the dust with the particle size of more than 1 micron is removed in the metal felt dust remover. And the phosphorus-containing furnace gas separated from the dust enters a yellow phosphorus condensation system to prepare a yellow phosphorus finished product. The dust settled and filtered by the impact dust remover, the heater and the metal felt dust remover enters a closed spiral dust discharging machine discharging system through the respective lower conical hoppers.
Claims (4)
1. A device for purifying yellow phosphorus furnace gas by a low-temperature dry method is characterized in that: comprises an impact type dust remover (1), a heater (2), a metal felt dust remover (3), a yellow phosphorus condensing tower (4) and a spiral ash discharger (5), wherein an outlet pipe (101) of furnace gas of a yellow phosphorus electric furnace is directly connected with an inlet of the impact type dust remover (1), an outlet of the impact type dust remover (1) is connected with an inlet of the heater (2), the outlet of the heater (2) is communicated with the inlet of the metal felt dust remover (3), the gas outlet of the metal felt dust remover (3) is connected with the inlet of the yellow phosphorus condensing tower (4), a dust outlet at the bottom of the impact type dust remover (1), a dust outlet at the bottom of the heater (2) and a dust outlet at the bottom of the metal felt dust remover (3) are hermetically communicated with a dust inlet of a closed spiral dust exhauster (5), and a gas outlet of the yellow phosphorus condensing tower (4) is a gas exhaust port of the device;
the impact type dust remover (1) comprises an upper cylindrical part and a lower conical part, wherein an inlet is formed in the conical surface of the lower conical part, an outlet pipe (101) of furnace gas of the yellow phosphorus electric furnace vertically extends into the top of the impact type dust remover (1) from the inlet in the conical surface, a partition plate (102) is fixed in the upper cylindrical part, the upper cylindrical part is divided into a left part and a right part through the partition plate (102), a furnace gas outlet pipe (103) is arranged on the upper side of the upper cylindrical part, the furnace gas outlet pipe (103) is inserted into the heater (2), the upper cylindrical part and the lower conical part are of a steam jacket (104) structure, a dust outlet pipe (105) is arranged at the conical tip of the lower conical part, and the dust outlet pipe is inserted into the closed spiral dust exhauster (5);
the metal felt (31) in the metal felt dust remover (3) is made of 316 or 310S stainless steel materials and is woven by 316 or 310S stainless steel fibers; the surface pores of the metal felt (31) are smaller than 1 mu m, the filtration is surface filtration, a thicker filter cake is not formed, and dust which is larger than or equal to 1 mu m is intercepted on the surface of the superfine fiber through screening, interception, collision and electrostatic action when the dust-containing phosphorus-containing furnace gas passes through the metal filter material; when the filtering air speed of the metal felt dust remover (3) is 0.8-1.1 m/min, the dust concentration in the phosphorus-containing furnace gas is lower than 5mg/Nm after passing through the metal felt dust remover (3)3(ii) a When the filtering wind speed is 1.2-1.5 m/min, the dust concentration in the phosphorus-containing furnace gas is lower than 10mg/Nm after passing through the metal felt dust remover3。
2. The apparatus for low-temperature dry purification of yellow phosphorus furnace gas as claimed in claim 1, wherein: the heat source of the heater (2) is one or a combination of several of steam, infrared, microwave and high-temperature combustion flue gas.
3. A method for using the device of claim 1 to purify yellow phosphorus furnace gas by low-temperature dry method, which is characterized by comprising the following steps:
discharging yellow phosphorus furnace gas discharged by a yellow phosphorus electric furnace into an impact type dust remover (1) for dust removal treatment, removing dust with the particle size of more than 20 microns in the yellow phosphorus furnace gas through the impact type dust remover (1), and performing heat preservation and heating on the outer wall of the impact type dust remover (1) by adopting steam to prevent condensable gas from being condensed; the dedusted gas enters a heater (2) for heating treatment, the yellow phosphorus furnace gas is heated to 150-180 ℃, then the yellow phosphorus furnace gas is input into a metal felt deduster (3) for further removing dust with the particle size of 1-20 mu m, the yellow phosphorus furnace gas after dedusting and purification directly produces yellow phosphorus products through a yellow phosphorus condensation tower (4), and the dust generated by the impact deduster (1), the heater (2) and the metal felt deduster (3) is discharged into a closed spiral dust discharging machine (5).
4. The method for low-temperature dry purification of yellow phosphorus furnace gas as claimed in claim 3, characterized in that: the wall temperature of the impact dust remover (1) is kept at 140-150 ℃ by heating the wall surface of the impact dust remover (1) by steam.
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| CN111473310A (en) * | 2020-04-27 | 2020-07-31 | 连云港佑源医药设备制造有限公司 | Steam generator recovery system |
| CN114644323B (en) * | 2020-12-17 | 2023-11-28 | 中节能工业节能有限公司 | Dust-removing and phosphorus-collecting system and dust-removing and phosphorus-collecting method |
| CN113797582B (en) * | 2021-09-13 | 2023-04-07 | 昆明理工大学 | Method and system for recovering elemental phosphorus from phosphorus-containing gas by dry cooling |
| CN114262633B (en) * | 2021-12-06 | 2023-06-06 | 北京航天石化技术装备工程有限公司 | High-temperature tar-containing pyrolysis gas dust removal device and method |
| CN114275982A (en) * | 2021-12-07 | 2022-04-05 | 成都易态科技有限公司 | Mud phosphorus recovery processing system, mud phosphorus evaporation system and mud phosphorus recovery processing method |
| CN114931812A (en) * | 2022-06-22 | 2022-08-23 | 科林环保技术有限责任公司 | Yellow phosphorus production system and working method thereof |
| CN115212669B (en) * | 2022-06-29 | 2023-07-04 | 成都易态科技有限公司 | Yellow phosphorus flue gas purification system |
| CN115193178B (en) * | 2022-06-29 | 2023-07-04 | 成都易态科技有限公司 | Flue gas filtering and dust removing device and yellow phosphorus flue gas purifying system |
| CN115212671B (en) * | 2022-06-29 | 2023-07-04 | 成都易态科技有限公司 | Ash discharging method, ash discharging system and yellow phosphorus flue gas purifying system |
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| ES2612484T3 (en) * | 2010-02-26 | 2017-05-17 | Arcelormittal | Apparatus and procedure for the treatment of exhaust gases containing zinc vapors |
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| CN105396403B (en) * | 2015-08-04 | 2018-01-12 | 贵州鑫新化工集团有限公司 | A kind of yellow phosphorus furnace gas high-temperature dust removal system |
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| US5277705A (en) * | 1992-12-30 | 1994-01-11 | Iowa State University Research Foundation, Inc. | Powder collection apparatus/method |
| CN205442645U (en) * | 2015-12-30 | 2016-08-10 | 成都易态科技有限公司 | Yellow phosphor furnace air drying dust collecting equipment's heat preservation system |
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