CN114751452A - Device and process for producing antimony white from lead-antimony alloy - Google Patents
Device and process for producing antimony white from lead-antimony alloy Download PDFInfo
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- CN114751452A CN114751452A CN202210439078.8A CN202210439078A CN114751452A CN 114751452 A CN114751452 A CN 114751452A CN 202210439078 A CN202210439078 A CN 202210439078A CN 114751452 A CN114751452 A CN 114751452A
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- 229910001245 Sb alloy Inorganic materials 0.000 title claims abstract description 45
- 239000002140 antimony alloy Substances 0.000 title claims abstract description 44
- GHPGOEFPKIHBNM-UHFFFAOYSA-N antimony(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Sb+3].[Sb+3] GHPGOEFPKIHBNM-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims description 17
- 230000003647 oxidation Effects 0.000 claims abstract description 129
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 129
- 238000002844 melting Methods 0.000 claims abstract description 51
- 230000008018 melting Effects 0.000 claims abstract description 51
- 239000000428 dust Substances 0.000 claims abstract description 46
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 238000005266 casting Methods 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 239000000779 smoke Substances 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 238000005086 pumping Methods 0.000 claims abstract description 15
- 238000004806 packaging method and process Methods 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 13
- 239000003546 flue gas Substances 0.000 claims description 13
- 238000007664 blowing Methods 0.000 claims description 11
- 238000009423 ventilation Methods 0.000 claims description 10
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 9
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Inorganic materials O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 5
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 4
- 229910052787 antimony Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000011112 process operation Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims 1
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 230000001590 oxidative effect Effects 0.000 description 9
- 238000007599 discharging Methods 0.000 description 5
- 239000002737 fuel gas Substances 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G30/00—Compounds of antimony
- C01G30/004—Oxides; Hydroxides; Oxyacids
- C01G30/005—Oxides
-
- 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
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a device for producing antimony white by lead-antimony alloy, which comprises a first oxidation furnace, a melting furnace and a second oxidation furnace, wherein a steel platform at one side of the melting furnace is provided with a conveying chute, a burner system is arranged below one side of the steel platform, and an ingot casting machine and a gas collecting hood are arranged below the other side of the steel platform; a first delivery pump and a stirrer are arranged on a pot cover of the melting furnace; the first oxidation furnace and the second oxidation furnace are provided with a second conveying pump; the boiler covers of the first oxidation furnace and the second oxidation furnace are respectively provided with an air inlet, a smoke outlet and a liquid pumping sleeve, and the air inlets are connected with an air supply pipeline; the smoke outlets of the boiler covers of the first oxidation furnace and the second oxidation furnace are connected with a cyclone dust collector and a bag-type dust collector, and the cyclone dust collector and the bag-type dust collector are jointly connected with an induced draft fan and a chimney; an embedded scraper conveyor, a buffering steel bin and a metering and packaging device are arranged below the bag-type dust remover. The invention has the advantages of standard and regular arrangement, clean and sanitary field environment, low labor intensity of workers and high production efficiency.
Description
Technical Field
The invention relates to the field of metallurgical equipment, in particular to a device and a process for producing antimony white by using lead-antimony alloy.
Background
Antimony white, the scientific name of antimony trioxide, is widely used in the industries of enamels, pigments, paints, plastics, glass, ceramics and fireproof fabrics. At present, a device for producing antimony white by lead-antimony alloy, such as patent document with application number of CN02114944.5, discloses a device for producing antimony white by lead-antimony alloy, the scheme adopts a single set of oxidation furnace to be dispersedly arranged, equipment in a workshop is disorderly arranged and occupies a large area, and the addition of lead-antimony alloy blocks and lead ingots is manual operation, so that the manual labor intensity of workers is high; in addition, the bottom lead is discharged by the aid of the dead weight of the bottom lead in the furnace, the lead discharging operation time is long, and smoke is discharged in an unorganized mode during the operation of discharging the bottom lead, so that the working environment is poor. Therefore, during production operation, the lead-antimony alloy ingot and the lead ingot are put into a directly heated oxidation furnace and then undergo a single-system production mode of melting, heating, blast oxidation and bottom lead laying stages in sequence, the production operation period is long, the production efficiency is low, the system antimony white yield in unit time is low, and the economic benefit is not obvious.
Disclosure of Invention
The invention provides a device and a process for producing antimony white by lead-antimony alloy, aiming at solving the problems pointed out in the background art, and the device and the process are standard and regular in arrangement, clean and sanitary in site environment, low in labor intensity of workers and high in production efficiency.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a device and its process for producing antimony white of alloy of lead and antimony, including the first oxidizing furnace, melting furnace and second oxidizing furnace, the said first oxidizing furnace, melting furnace and second oxidizing furnace are all set up the steel platform peripherally, there are conveying chutes on the said steel platform of one side of melting furnace, there are burner systems to heat separately for each stove under the steel platform of the same side with said conveying chute respectively, there are ingot casting machines corresponding to first oxidizing furnace and second oxidizing furnace under the steel platform of another side of conveying chute respectively;
pot covers are arranged above the furnace openings of the first oxidation furnace, the melting furnace and the second oxidation furnace, a first conveying pump and a stirrer are arranged on the pot covers of the melting furnace, the outlet of the first conveying pump of the melting furnace is communicated with the inlet of a conveying chute, and the outlet of the conveying chute is respectively communicated with the feed openings of the first oxidation furnace and the second oxidation furnace;
the first oxidation furnace and the second oxidation furnace are respectively provided with a second conveying pump, and the outlet of each second conveying pump is connected with the corresponding ingot casting machine through a slide pipe;
the boiler covers of the first oxidation furnace and the second oxidation furnace are respectively provided with an air inlet, a smoke outlet and a liquid pumping sleeve, the air inlets are connected with an air supply pipeline through hoses, and a liquid pumping pipe of the second conveying pump penetrates through the liquid pumping sleeve and then extends into the inner bottoms of the first oxidation furnace and the second oxidation furnace to pump lead liquid;
the smoke outlets on the pot covers of the first oxidation furnace and the second oxidation furnace are sequentially connected with a cyclone dust collector and a bag-type dust collector through pipelines, and the cyclone dust collector and the bag-type dust collector are jointly connected with an induced draft fan and a chimney; an embedded scraper conveyer is arranged below the bag-type dust collector, and a buffer steel bin and a metering and packaging device are arranged at the tail end of the embedded scraper conveyer.
Furthermore, a gas collecting hood is arranged at the top of the ingot casting machine, and the gas collecting hood and a pot hood of the melting furnace are connected with an annular integrated ventilation and dust removal system through pipelines, so that smoke generated in the production process is effectively purified.
Furthermore, a plurality of air outlets are formed in the bottoms of the pot covers of the first oxidation furnace and the second oxidation furnace, and the pure oxygen and air mixed gas introduced into the furnaces can be contacted with the solution more uniformly.
Further, the conveying chute is provided with a heat insulation layer and a valve, and the valve is arranged to facilitate the switching of the solution flowing into the first oxidation furnace or the second oxidation furnace.
Furthermore, accident overflow holes are formed in the inner bottoms of the first oxidation furnace, the second oxidation furnace and the melting furnace, so that the furnace body is prevented from being damaged when a leakage accident happens.
The production process of the device for producing antimony white from the lead-antimony alloy comprises the following steps:
the method comprises the following steps: the method comprises the following steps of (1) hoisting a hopper containing lead-antimony alloy ingots and lead ingots by a crane respectively, then feeding the hoisted material into a melting furnace, controlling the furnace temperature to melt, uniformly stirring the material under the action of a stirrer, and meanwhile collecting fume volatilized from high-temperature melt in the melting furnace by a pot cover on the melting furnace and feeding the fume into a ring-set ventilation dust collection system through a pipeline for purification treatment;
step two: pumping the molten lead-antimony alloy with uniform components into a conveying chute through a first conveying pump, conveying the molten lead-antimony alloy into a first oxidation furnace, controlling the temperature of the furnace, introducing pure oxygen and air mixed gas into an air inlet through an air supply pipeline for oxidation blowing, continuously feeding a lead-antimony alloy ingot and bottom lead into the melting furnace, and heating for melting;
step three: in the oxidation converting process in the second step, after the liquid level of the lead-antimony alloy solution in the first oxidation furnace is reduced to a certain height, a first conveying pump is utilized to timely feed lead-antimony alloy melt in the melting furnace into the first oxidation furnace to reach the height of the liquid level of the process operation, the furnace temperature is controlled, pure oxygen and air mixed gas is continuously introduced for oxidation converting until the content of antimony in the lead-antimony alloy melt meets the requirement, and the oxidation converting operation is stopped; in the oxidation converting process, the smoke inside the first oxidation furnace sequentially passes through a cyclone dust collector and a bag-type dust collector to collect antimony white, then the dust content of the smoke is less than or equal to 10mmg/m for high speed cultivation, and then the smoke is sent into a chimney through an induced draft fan to be evacuated; the antimony trioxide collected by the cyclone dust collector is packaged after being measured, and the antimony trioxide collected by the bag-type dust collector is conveyed to a buffer steel bin and a measuring and packaging device through an embedded scraper conveyor for packaging;
step four: pumping the bottom lead in the first oxidation furnace into an ingot casting machine through a chute by a second conveying pump, collecting the volatilized flue gas through a gas collecting hood during bottom lead ingot casting, sending the flue gas into a circular collection ventilation dust collection system through a pipeline for purification treatment, and repeating the second step and the third step after the bottom lead in the first oxidation furnace is emptied; and, during the oxidation blowing in the first oxidation furnace, the second oxidation furnace 3 repeats the second step and the third step, and the bottom lead discharging operation of the first oxidation furnace and the second oxidation furnace is staggered.
Through the technical scheme, the invention has the beneficial effects that:
1. the steel platforms are arranged at the periphery of each furnace in the device, so that arrangement and operation of a conveying chute, an ingot casting machine, a corresponding gas collecting hood, a pipeline and a burner system are facilitated, and arrangement of each device and pipeline in a workshop can be guaranteed to be standard and neat.
2. The stirrer and the delivery pump are positioned in the pot cover, the sealing performance is good, the dust hood is arranged above the ingot casting machine, smoke in the whole operation process can be effectively collected and controlled, and the site environment is clean and sanitary.
3. All devices in the device are arranged in a centralized mode, meanwhile, the feeding is convenient through the arrangement of the conveying pump and the ingot casting machine, manual feeding operation is replaced, the labor intensity of workers is reduced, the time for placing bottom lead and replenishing alloy in the oxidation pot is shortened, the melting and temperature rising time of lead-antimony alloy in the oxidation pot is shortened, the blast oxidation production efficiency is improved, and the antimony white yield is improved through increasing the number of production furnaces compared with the traditional single-system production mode.
Drawings
FIG. 1 is a schematic view of an apparatus for producing antimony white from a lead-antimony alloy according to the present invention.
FIG. 2 is a schematic cross-sectional view taken at A-A in FIG. 1 of an apparatus for producing antimony white from a lead-antimony alloy according to the present invention.
FIG. 3 is a schematic cross-sectional view at B-B in FIG. 1 of an apparatus for producing antimony white from a lead-antimony alloy according to the present invention.
FIG. 4 is a schematic cross-sectional view at C-C in FIG. 1 of an apparatus for producing antimony white from a lead-antimony alloy according to the present invention.
The reference numbers in the drawings are as follows:
1 is first oxidation furnace, 2 is the melting furnace, 3 is the second oxidation furnace, 4 is the conveying chute, 5 is the combustor system, 6 is the ingot casting machine, 7 is the accident overflow hole, 8 is the elephant trunk, 9 is the air supply pipeline, 10 is the hose, 11 is cyclone, 12 is the sack cleaner, 13 is the draught fan, 14 is the chimney, 15 is buried scraper conveyor, 16 is the buffering steel storehouse, 17 is measurement packing plant, 18 is the ring set ventilation dust pelletizing system.
Detailed Description
The invention is further described with reference to the following figures and detailed description:
in the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", "lateral", "vertical", etc. indicate orientations or positional relationships based on those shown in fig. 1 only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 4, a device for producing antimony white from lead-antimony alloy comprises a first oxidation furnace 1, a melting furnace 2 and a second oxidation furnace 3, wherein steel platforms are arranged on the peripheries of the first oxidation furnace 1, the melting furnace 2 and the second oxidation furnace 3, a conveying chute 4 is arranged on the steel platform on one side of the melting furnace 2, burner systems 5 for independently heating the furnaces are respectively arranged below the steel platforms on the same side of the conveying chute 4, and ingot casting machines 6 corresponding to the first oxidation furnace 1 and the second oxidation furnace 3 are respectively arranged below the steel platforms on the other side of the conveying chute 4.
In the invention, pot covers are arranged above the furnace mouths of a first oxidation furnace 1, a melting furnace 2 and a second oxidation furnace 3, a first conveying pump and a stirrer are arranged on the pot cover of the melting furnace 2, the outlet of the first conveying pump of the melting furnace 2 is communicated with the inlet of a conveying chute 4, and the outlet of the conveying chute 4 is respectively communicated with the feed inlets of the first oxidation furnace 1 and the second oxidation furnace 3; and the first oxidation furnace 1 and the second oxidation furnace 3 are respectively provided with a second conveying pump, the outlet of each second conveying pump is connected with the corresponding ingot casting machine 6 through a slide pipe 8, and thus, the second conveying pump pumps the bottom lead in the first oxidation furnace 1 into the ingot casting machine 6 through the slide pipe 8.
In this embodiment, the pot covers of the first oxidation furnace 1 and the second oxidation furnace 3 are respectively provided with an air inlet, a smoke outlet and a liquid pumping sleeve, the air inlet is connected with an air supply pipeline 9 through a hose 10, and a liquid pumping pipe of the second delivery pump penetrates through the liquid pumping sleeve and then extends into the inner bottom of the first oxidation furnace 1 and the second oxidation furnace 3 to pump the lead liquid.
Smoke outlets on pot covers of the first oxidation furnace 1 and the second oxidation furnace 3 are sequentially connected with a cyclone dust collector 11 and a bag-type dust collector 12 through pipelines, and the cyclone dust collector 11 and the bag-type dust collector 12 are jointly connected with an induced draft fan 13 and a chimney 14; an embedded scraper conveyer 15 is arranged below the bag-type dust collector 12, and a buffer steel bin 16 and a metering and packaging device 17 are arranged at the tail end of the embedded scraper conveyer 15.
In the invention, the top of the ingot casting machine 6 is provided with a gas collecting hood, and the gas collecting hood and the pot cover of the melting furnace 2 are both connected with an annular ventilation and dust removal system 18 through pipelines, so that the flue gas generated in the production process is effectively purified, and the emission requirement of environmental protection and cleanness is met.
In addition, a plurality of air outlets are formed in the bottoms of the pot covers of the first oxidation furnace 1 and the second oxidation furnace 3, the contact between the pure oxygen and the air mixed gas introduced into the furnaces and the solution is more uniform, and the oxidation converting effect is good.
And the conveying chute 4 is provided with a heat-insulating layer and a valve, and the switching of the solution flowing into the first oxidation furnace 1 or the second oxidation furnace 3 is convenient to realize by setting the valve.
It should be noted that the inner bottoms of the first oxidation furnace 1, the melting furnace 2 and the second oxidation furnace 3 are all provided with accident overflow holes 7, so that when a leakage accident occurs, molten lead can be discharged from the bottom of the furnace body to an accident pit beside the furnace body, and the furnace body is prevented from being damaged.
The invention also discloses a production process of the device for producing antimony white from the lead-antimony alloy, which comprises the following steps:
the method comprises the following steps: the hopper for containing the lead-antimony alloy ingot and the lead ingot is respectively lifted by a crane and then is sent into a melting furnace 2, the furnace temperature is controlled to melt, and the furnace temperature requirement is as follows: stirring uniformly at 500-600 ℃ under the action of a stirrer, and meanwhile, collecting flue gas volatilized by high-temperature melt in the melting furnace 2 through a pot cover on the melting furnace and conveying the flue gas into a ring collection ventilation dust collection system 18 through a pipeline for purification treatment;
step two: the lead-antimony alloy melt with uniform components after melting is pumped into a conveying chute 4 through a first conveying pump, then conveyed into a first oxidation furnace 1, and then the furnace temperature is controlled, wherein the furnace temperature requirement is as follows: introducing pure oxygen and air mixed gas into an air inlet through an air supply pipeline 9 at 500-650 ℃ for oxidation blowing, continuously feeding lead-antimony alloy ingot and bottom lead into the melting furnace 2, and heating and melting;
step three: after the liquid level of the lead-antimony alloy solution in the first oxidation furnace 1 is lowered to a certain height in the oxidizing and blowing process in the second step, timely feeding the lead-antimony alloy solution in the melting furnace 2 into the first oxidation furnace 1 by using a first conveying pump to reach the height of the liquid level of the process operation, controlling the furnace temperature, continuously introducing pure oxygen and air mixed gas for oxidizing and blowing until the antimony content in the lead-antimony alloy solution is less than or equal to 16-17%, and stopping oxidizing and blowing operation; and in the oxidation converting process, carrying out heavy planting on the flue gas with the dust content of less than or equal to 10mmg/m after the flue gas in the first oxidation furnace 1 sequentially passes through a cyclone dust collector 11 and a bag-type dust collector 12 to collect antimony white, and then sending the flue gas into a chimney 14 through an induced draft fan 13 to be evacuated; the antimony trioxide collected by the cyclone dust collector 11 is measured and then packaged, and the antimony trioxide collected by the bag-type dust collector 12 is conveyed to a buffer steel bin 16 and a measuring and packaging device 17 through an embedded scraper conveyor 15 for packaging;
step four: pumping the bottom lead in the first oxidation furnace 1 into an ingot casting machine 6 through a chute 8 by a second conveying pump, collecting volatilized flue gas during bottom lead ingot casting through a gas collecting hood, conveying the flue gas into a circular collection ventilation dust collecting system 18 through a pipeline for purification treatment, and repeating the second step and the third step after the bottom lead in the first oxidation furnace 1 is emptied; and, during the oxidation converting in the first oxidation furnace 1, the second oxidation furnace 3 repeats the second and third steps, and the bottom lead discharging operation of the first oxidation furnace 1 and the second oxidation furnace 3 is staggered.
In the production process, the mechanical operation is adopted for adding and discharging the lead-antimony alloy, the operation time is short, the pure oxygen and air mixed gas is adopted for oxidation, the blowing time is short, the effective operation time of the equipment is long, the efficiency is high, the antimony white yield is high, and the melting furnace 2 and the two oxidation furnaces are heated by adopting heat accumulating type fuel gas, so that the fuel gas consumption is low, the energy consumption is low, and the economic benefit is remarkable. In a word, the invention has the characteristics of energy conservation, high efficiency, high mechanization degree and the like, and has certain adaptability to the large-scale and continuous production of a system.
The above-described embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the invention, so that equivalent variations or modifications in the structure, characteristics and principles of the invention described in the claims should be included.
Claims (6)
1. The device for producing antimony white from lead-antimony alloy is characterized by comprising a first oxidation furnace (1), a melting furnace (2) and a second oxidation furnace (3), wherein steel platforms are arranged on the peripheries of the first oxidation furnace (1), the melting furnace (2) and the second oxidation furnace (3), a conveying chute (4) is arranged on the steel platform on one side of the melting furnace (2), burner systems (5) for independently heating the furnaces are respectively arranged below the steel platforms on the same side of the conveying chute (4), and ingot casting machines (6) corresponding to the first oxidation furnace (1) and the second oxidation furnace (3) are respectively arranged below the steel platforms on the other side of the conveying chute (4);
pot covers are arranged above the furnace mouths of the first oxidation furnace (1), the melting furnace (2) and the second oxidation furnace (3), a first conveying pump and a stirrer are arranged on the pot covers of the melting furnace (2), the outlet of the first conveying pump of the melting furnace (2) is communicated with the inlet of a conveying chute (4), and the outlet of the conveying chute (4) is respectively communicated with the feed inlets of the first oxidation furnace (1) and the second oxidation furnace (3);
the first oxidation furnace (1) and the second oxidation furnace (3) are respectively provided with a second conveying pump, and the outlet of each second conveying pump is connected with the corresponding ingot casting machine (6) through a slide pipe (8);
the boiler covers of the first oxidation furnace (1) and the second oxidation furnace (3) are respectively provided with an air inlet, a smoke outlet and a liquid pumping sleeve, the air inlets are connected with an air supply pipeline (9) through a hose (10), and a liquid pumping pipe of the second conveying pump penetrates through the liquid pumping sleeve and then extends into the inner bottoms of the first oxidation furnace (1) and the second oxidation furnace (3) to pump lead liquid;
smoke outlets on pot covers of the first oxidation furnace (1) and the second oxidation furnace (3) are sequentially connected with a cyclone dust collector (11) and a bag-type dust collector (12) through pipelines, and the cyclone dust collector (11) and the bag-type dust collector (12) are jointly connected with an induced draft fan (13) and a chimney (14); an embedded scraper conveyer (15) is arranged below the bag-type dust collector (12), and a buffer steel bin (16) and a metering and packaging device (17) are arranged at the tail end of the embedded scraper conveyer (15).
2. The device for producing antimony white from lead-antimony alloy according to claim 1, characterized in that a gas collecting hood is arranged at the top of the ingot casting machine (6), and the gas collecting hood and the pot hood of the melting furnace (2) are connected with an annular centralized ventilation and dust removal system (18) through pipelines.
3. The device for producing antimony white from lead-antimony alloy according to claim 1, characterized in that a plurality of air outlets are arranged at the bottom of the pot covers of the first oxidation furnace (1) and the second oxidation furnace (3).
4. The apparatus for producing antimony white from lead-antimony alloy according to claim 1, characterized in that the said conveying chute (4) is provided with heat insulation layer and valve.
5. The apparatus for producing antimony white from lead-antimony alloy according to claim 1, characterized in that accident overflow holes (7) are arranged at the inner bottom of the first oxidation furnace (1), the melting furnace (2) and the second oxidation furnace (3).
6. The production process of the device for producing antimony white from the lead-antimony alloy according to any one of claims 1 to 5 is characterized by comprising the following steps:
the method comprises the following steps: the hopper for containing lead-antimony alloy ingots and lead ingots is lifted by a crane and then is fed into the melting furnace (2), the furnace temperature is controlled for melting, the materials are uniformly stirred under the action of a stirrer, and meanwhile, flue gas volatilized by high-temperature melt in the melting furnace (2) is collected by a pot cover on the melting furnace and is sent to an annular collection ventilation dust collection system (18) for purification treatment through a pipeline;
step two: pumping the molten lead-antimony alloy with uniform components into a conveying chute (4) through a first conveying pump, conveying the molten lead-antimony alloy into a first oxidation furnace (1), controlling the furnace temperature, introducing pure oxygen and air mixed gas into an air inlet through an air supply pipeline (9) to perform oxidation blowing, continuously feeding lead-antimony alloy ingot and bottom lead into a melting furnace (2), and heating and melting;
step three: in the second step, after the liquid level of the lead-antimony alloy solution in the first oxidation furnace (1) is lowered to a certain height in the oxidation blowing process, timely feeding the lead-antimony alloy solution in the melting furnace (2) into the first oxidation furnace (1) by using a first conveying pump to reach the height of the liquid level of the process operation, controlling the furnace temperature, continuously introducing pure oxygen and air mixed gas for oxidation blowing until the antimony content in the lead-antimony alloy solution meets the requirement, and stopping the oxidation blowing operation; in addition, in the oxidation converting process, after antimony white is collected by the cyclone dust collector (11) and the bag-type dust collector (12), smoke in the first oxidation furnace (1) sequentially contains dust less than or equal to 10mmg/m for carrying out powder transportation, and then the smoke is sent to a chimney (14) through an induced draft fan (13) for evacuation; the antimony trioxide collected by the cyclone dust collector (11) is measured and then packaged, and the antimony trioxide collected by the bag-type dust collector (12) is conveyed to a buffer steel bin (16) and a measuring and packaging device (17) through an embedded scraper conveyor (15) for packaging;
step four: pumping the bottom lead in the first oxidation furnace (1) into an ingot casting machine (6) through a slide pipe (8) by a second conveying pump, collecting the volatilized flue gas during bottom lead ingot casting through a gas collecting hood, conveying the flue gas into an annular collection ventilation dust collection system (18) through a pipeline for purification treatment, and repeating the second step and the third step after the bottom lead in the first oxidation furnace (1) is emptied; and during the oxidation converting of the first oxidation furnace (1), the second oxidation furnace (3) repeats the second step and the third step, and the bottom lead placing operation of the first oxidation furnace (1) and the second oxidation furnace (3) is staggered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210439078.8A CN114751452B (en) | 2022-04-25 | 2022-04-25 | Device and process for producing antimony white from lead-antimony alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210439078.8A CN114751452B (en) | 2022-04-25 | 2022-04-25 | Device and process for producing antimony white from lead-antimony alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114751452A true CN114751452A (en) | 2022-07-15 |
| CN114751452B CN114751452B (en) | 2023-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210439078.8A Active CN114751452B (en) | 2022-04-25 | 2022-04-25 | Device and process for producing antimony white from lead-antimony alloy |
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| Country | Link |
|---|---|
| CN (1) | CN114751452B (en) |
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