CN113772643A - Intelligent material distributing and batching system of yellow phosphorus furnace - Google Patents

Intelligent material distributing and batching system of yellow phosphorus furnace Download PDF

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Publication number
CN113772643A
CN113772643A CN202111088987.3A CN202111088987A CN113772643A CN 113772643 A CN113772643 A CN 113772643A CN 202111088987 A CN202111088987 A CN 202111088987A CN 113772643 A CN113772643 A CN 113772643A
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China
Prior art keywords
phosphorus
furnace
washing tank
yellow phosphorus
conveyer belt
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CN202111088987.3A
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Chinese (zh)
Inventor
业润东
文光
张仲铣
刘嵩
钱宏
李俊坤
刘全云
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Yunnan Chengjiang Huaye Phosphorus Chemical Co ltd
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Yunnan Chengjiang Huaye Phosphorus Chemical Co ltd
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Priority to CN202111088987.3A priority Critical patent/CN113772643A/en
Publication of CN113772643A publication Critical patent/CN113772643A/en
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
    • B01D47/022—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by using a liquid curtain
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/52—Hydrogen sulfide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/62—Carbon oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/68—Halogens or halogen compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • 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
    • C01B25/04—Purification of phosphorus
    • C01B25/047—Purification of phosphorus of yellow phosphorus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
    • F26B17/04—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001—Handling, e.g. loading or unloading arrangements
    • F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/30—Alkali metal compounds
    • B01D2251/304—Alkali metal compounds of sodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/60—Inorganic bases or salts
    • B01D2251/604—Hydroxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Abstract

The invention belongs to the technical field of clean production, and particularly relates to an intelligent material distributing and batching system of a yellow phosphorus furnace; firstly, drying and conveying the coke, the silica and the ore to a material cabinet by a dryer, feeding the ore in the material cabinet into an electric furnace according to the mixture ratio of the raw materials for combustion, discharging the generated slag and the ferro-phosphorus from a furnace eye at regular intervals, recovering the ferro-phosphorus at a slag channel, feeding the slag into a slagging pool, and timely pick up and transport away, the generated furnace gas such as yellow phosphorus, carbon monoxide, silicon tetrafluoride and the like escapes from the reaction melting zone, passes through the mixture continuously supplemented at the upper part in the furnace and carries a part of mechanical impurities in the mixture, enters the absorption towers connected in series through the gas guide pipe, is sprayed and cooled by circulating water, is condensed into liquid drops and enters a phosphorus receiving groove at the bottom of the tower together with mechanical impurities, the crude phosphorus is heated by steam in a refining pot, stirred and clarified, pure phosphorus is deposited at the bottom of the pot, and then the pure phosphorus enters a condensation tank, is cooled and formed to obtain the products of yellow phosphorus, carbon monoxide and other tail gases, and is discharged after being purified by a flue gas treatment device.

Description

Intelligent material distributing and batching system of yellow phosphorus furnace
Technical Field
The invention belongs to the technical field of clean production, and particularly relates to an intelligent material distributing and batching system of a yellow phosphorus furnace.
Background
The raw materials for producing the yellow phosphorus are silica, coke breeze, silica and phosphate ore, the coke breeze is a reducing agent and an electric conductor in the yellow phosphorus production by the electric furnace method, the silica is a cosolvent, the melting point of furnace slag can be reduced, the slag discharge is convenient,
the main chemical component of the phosphate ore is calcium fluophosphate, and the general formula is Ca5FPO43Taste of phosphate rock in P2O5The content indicates that the requirement is generally P2O5≥28%，FE2O3＜1.5%，CO2Less than 5 percent, and H when the phosphate ore enters the furnace2O is less than 2 percent, and the granularity is 5-35 mm.
Fixation in cokeThe carbon content is generally required to be more than 80 percent, the mechanical strength is better, and H is generated when coke is charged into a furnace2O is less than 2 percent, the granularity is 3-25mm, and the main chemical reaction for preparing phosphorus by an electric furnace method is as follows:
4Ca5FPO43+21SiO2+30C3P4—30CO+SIF4+20CaSiO3
the phosphate rock, the silica and the coke which meet the requirements of the production process are discharged in batches according to a set proportion from the storage bins respectively, then the mixture is prepared into a uniform mixture and is conveyed to the storage bin of the electric furnace, the mixture is conveyed into the electric furnace through uniformly distributed blanking pipes which are connected with an electric furnace body and the storage bin, the electric furnace enables the mixture entering the electric furnace to carry out reduction reaction in the electric furnace under the work, the generated slag and the ferro-phosphorus are discharged from a furnace eye periodically, the ferro-phosphorus is recovered at a slag channel, the slag enters a slag drawing pool and is grabbed and transported away in time,
the generated furnace gas such as yellow phosphorus, carbon monoxide, silicon tetrafluoride and the like escapes from the reaction melting zone, passes through the mixture continuously supplemented at the upper part in the furnace and carries a part of mechanical impurities in the mixture, enters which absorption tower connected in series through a gas guide pipe, is subjected to circulating sewage spray cooling with low turbidity and proper temperature and pressure, the yellow phosphorus is condensed into liquid drops and enters a phosphorus receiving groove at the bottom of the tower together with the mechanical impurities, namely crude phosphorus, the crude phosphorus is heated by steam in a refining pot, stirred and clarified, pure phosphorus is deposited at the bottom of the pot, and then the liquid drops enter a condensation tank, and the product, namely the tail gas such as the yellow phosphorus, the carbon monoxide and the like, is obtained after cooling and forming, and is discharged after purification.
Disclosure of Invention
The invention aims to provide an intelligent material distributing and batching system of a yellow phosphorus furnace, which can dry materials and then feed the dried materials into a furnace body, and discharge tail gas after treatment.
In order to solve the technical problems, the invention adopts the following technical scheme:
an intelligent material distributing and batching system of a yellow phosphorus furnace,
the method comprises the following steps:
firstly, drying the coke pieces, the silica and the ores by a dryer and conveying the coke pieces, the silica and the ores to a material cabinet, feeding the ores in the material cabinet into an electric furnace according to the proportion of raw materials for combustion,
the generated furnace slag and ferrophosphorus are periodically discharged from a furnace eye, ferrophosphorus is recovered at a slag passage, the furnace slag enters a slag melting tank and is timely picked up and carried away, furnace gas such as generated yellow phosphorus, carbon monoxide, silicon tetrafluoride and the like escapes from a reaction melting zone, the furnace slag continuously replenishes a mixture through the upper part in the furnace and carries a part of mechanical impurities in the mixture, the furnace slag enters an absorption tower connected in series through a gas guide pipe, the absorption tower is sprayed and cooled by circulating water, the yellow phosphorus is condensed into liquid drops and enters a phosphorus receiving groove at the bottom of the tower together with the mechanical impurities to obtain crude phosphorus, the crude phosphorus is heated by steam, stirred and clarified, pure phosphorus is deposited at the bottom of the tower, and then the crude phosphorus enters a condensation tank, and is cooled and molded to obtain tail gas such as product yellow phosphorus, carbon monoxide and the like, and the tail gas is purified by a flue gas treatment device and then discharged.
Further, the dryer comprises a discharging device, a conveying device and a drying device; the discharging device comprises a discharging hopper and a discharging channel, the square discharging channel is connected and arranged below a discharging port of the discharging hopper, and the discharging device is arranged at the top of the drying device; the conveying device comprises a first conveying belt and a second conveying belt; the first conveying belt is fixedly arranged at the middle upper part of the drying device, and the second conveying belt is fixedly arranged at the bottom of the drying device; the drying device comprises a box body, a heating rod, an air outlet and an air inlet, wherein the box body is arranged to be a closed rectangular box body, the heating rod is suspended at the top of the inner side of the box body and is connected to an electric cabinet, the air outlet is arranged at one side of the bottom of the box body, the air inlet is arranged at the other side of the bottom of the box body, the air inlet is connected with self-hot air, and the air outlet is connected to an exhaust fan; the unloading passageway extends the one end of first conveyer belt, and the fixed first conveyer belt support that is provided with on the first conveyer belt, fixed first support frame to ground that is provided with on the first conveyer belt support, and the fixed second conveyer belt support that is provided with on the second conveyer belt support is provided with support and intermediate strut to ground, is provided with leg joint on the first conveyer belt support to the second conveyer belt support.
Further, flue gas processing apparatus includes the cascade cabinet, spray column and alkali wash basin, cascade cabinet lateral wall is provided with the intake pipe, the bottom is provided with first outlet pipe, the top is provided with first outlet duct, first outlet duct is terminal to stretch into in the spray column from the spray column lateral wall, the spray column bottom is provided with the second outlet pipe, and the spray column top is provided with the second outlet duct, second outlet duct end is provided with first branch pipe and second branch pipe, first branch pipe and second branch pipe stretch into respectively in first alkali wash basin and the second alkali wash basin, and be provided with the sodium hydroxide solution in first alkali wash basin and the second alkali wash basin.
Further, the air inlet pipe, first outlet duct, all be provided with the fan on the second outlet duct, be provided with first solenoid valve on the first branch pipe, be provided with the second solenoid valve on the second branch pipe, first alkali wash basin and second alkali wash basin lateral wall are provided with alkali lye respectively and advance pipe and alkali lye exit tube, alkali lye advances to be provided with the valve on pipe and the alkali lye exit tube, first alkali wash basin and second alkali wash basin top all are provided with the blast pipe, be provided with first pH sensor in the first alkali wash basin, be provided with the second pH sensor in the second alkali wash basin, first pH sensor, the second pH sensor, first solenoid valve, the second solenoid valve all is connected with external control ware, the controller is connected with external alarm ware, first pH sensor, the second pH sensor, first solenoid valve, the second solenoid valve, controller and alarm ware are supplied power by external power source.
Further, a dust removal pipeline is arranged at the top of the dryer, a fan is arranged on the dust removal pipeline, and a dust removal device is arranged at the tail end of the dust removal pipeline.
Further, a high temperature resistant layer is arranged on the inner wall of the box body.
Compared with the prior art, the invention has at least one of the following beneficial effects:
1. the invention dries the coke pieces, the silica and the ores and then burns the coke pieces, the silica and the ores in the electric furnace, burns the phosphorite, reduces the moisture content of the phosphorite, can increase the reaction speed, and fully burns the phosphorite to reduce the content of harmful substances in tail gas.
2. This device is injectd the drying-machine, can effectually detach the steam on the ore on the way that the ore was carried, moreover, still preheats the power ore when detaching, more makes things convenient for the smelting pot. The problem of current ore carry water when entering into the smelting pot, influence the smelting pot effect is solved.
3. The invention is provided with the water curtain cabinet, the spray tower and the alkali washing tank, can remove most of dust and particulate matters in the tail gas through the water curtain cabinet and the spray tower, and removes part of H2S and HF; then the mixture is fed into an alkali washing pool to be washed by sodium hydroxide solution with the concentration of 5-15 percent, and H is further absorbed2S、HF、CO2When the device is used, a sodium hydroxide solution is discharged into the first alkali washing tank and the second alkali washing tank, smoke coming from the air inlet pipe enters the water curtain cabinet and the spray tower to be washed by water, then enters the first alkali washing tank from the second air outlet pipe through the first branch pipe, the first pH sensor detects acidity in the alkali washing process, when the acidity reaches a set lower limit, a signal is transmitted to the controller, the controller enables the first electromagnetic valve to be closed, then the second electromagnetic valve is opened, alkali washing is performed by using the second alkali washing tank, the alarm gives an alarm to remind an operator to change alkali liquor in the alkali washing tank, one of the first alkali washing tank and the second alkali washing tank is used for standby, alkali washing can be performed by using the other alkali washing tank when the acidity of one alkali liquor is increased to the set lower limit, and the washing effect is guaranteed.
Drawings
Fig. 1 is a schematic view of a dryer according to the present invention.
FIG. 2 is a schematic view of the structure of the flue gas treatment device of the present invention.
In the figure, 1-hopper; 2-a blanking channel; 3-a first conveyor belt; 4-a second conveyor belt; 5-a box body; 6-heating rod, 7-air outlet, 8-air inlet, 9-first conveyer belt bracket, 10-first bracket, 11-second conveyer belt bracket, 12-water curtain cabinet, 13-spray tower, 14-air inlet pipe, 15-first water outlet pipe, 16-first air outlet pipe, 17-second water outlet pipe, 18-second air outlet pipe, 19-first branch pipe, 20-second branch pipe, 21-first alkali washing tank, 22-second alkali washing tank, 23-second electromagnetic valve, 24-alkali liquid inlet pipe, 25-alkali liquid outlet pipe, 26-air outlet pipe, 27-first pH sensor, 28-second pH sensor, 29-dust removal pipeline and 30-second electromagnetic valve.
Detailed Description
As shown in fig. 1-2, in order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
Yellow phosphorus stove intelligence divides material feed proportioning system includes the following step:
firstly, drying the coke pieces, the silica and the ores by a dryer and conveying the coke pieces, the silica and the ores to a material cabinet, feeding the ores in the material cabinet into an electric furnace according to the proportion of raw materials for combustion,
the generated furnace slag and ferrophosphorus are discharged from a furnace eye regularly, ferrophosphorus is recovered at a slag passage, the furnace slag enters a slagging pool and is picked up and carried away in time, furnace gas such as generated yellow phosphorus, carbon monoxide, silicon tetrafluoride and the like escapes from a reaction melting zone, the furnace slag continuously supplements a mixture through the upper part in the furnace and carries a part of mechanical impurities in the mixture, the furnace slag enters an absorption tower connected in series through a gas guide pipe, the absorption tower is sprayed and cooled by circulating water, the yellow phosphorus is condensed into liquid drops and enters a phosphorus receiving groove at the bottom of the tower together with the mechanical impurities to obtain crude phosphorus, the crude phosphorus is heated, stirred and clarified by steam, pure phosphorus is deposited at the bottom of the tower, and then the crude phosphorus enters a condensation pool, and is cooled and molded to obtain tail gas such as yellow phosphorus, carbon monoxide and the like, the tail gas is purified and discharged by a gas treatment device, coke, silica and ore are dried and then enter an electric furnace for combustion, and phosphorite is combusted, the reaction speed can be increased by reducing the moisture content.
Example 2
Yellow phosphorus stove intelligence divides material feed proportioning system includes the following step:
firstly, drying the coke pieces, the silica and the ores by a dryer and conveying the coke pieces, the silica and the ores to a material cabinet, feeding the ores in the material cabinet into an electric furnace according to the proportion of raw materials for combustion,
the generated furnace slag and ferrophosphorus are discharged from a furnace eye regularly, ferrophosphorus is recovered at a slag passage, the furnace slag enters a slagging pool and is picked up and carried away in time, furnace gas such as generated yellow phosphorus, carbon monoxide, silicon tetrafluoride and the like escapes from a reaction melting zone, the furnace slag continuously supplements a mixture through the upper part in the furnace and carries a part of mechanical impurities in the mixture, the furnace slag enters an absorption tower connected in series through a gas guide pipe, the absorption tower is sprayed and cooled by circulating water, the yellow phosphorus is condensed into liquid drops and enters a phosphorus receiving groove at the bottom of the tower together with the mechanical impurities to obtain crude phosphorus, the crude phosphorus is heated, stirred and clarified by steam, pure phosphorus is deposited at the bottom of the tower, and then the crude phosphorus enters a condensation pool, and is cooled and molded to obtain tail gas such as yellow phosphorus, carbon monoxide and the like, the tail gas is purified and discharged by a gas treatment device, coke, silica and ore are dried and then enter an electric furnace for combustion, and phosphorite is combusted, the reaction speed can be increased by reducing the moisture content.
The dryer comprises a discharging device, a conveying device and a drying device; the blanking device comprises a blanking hopper 1 and a blanking channel 2, the square blanking channel 2 is connected and arranged below the discharge hole of the blanking hopper 1, and the blanking device is arranged at the top of the drying device; the conveying device comprises a first conveying belt 3 and a second conveying belt 4; the first conveying belt 3 is fixedly arranged at the middle upper part of the drying device, and the second conveying belt 4 is fixedly arranged at the bottom of the drying device; the drying device comprises a box body 5, a heating rod 6, an air outlet 7 and an air inlet 8, wherein the box body 5 is arranged into a closed rectangular box body, the heating rod 6 is suspended at the top of the inner side of the box body 5 and connected to an electric cabinet, the air outlet 7 is arranged at one side of the bottom of the box body 5, the air inlet 8 is arranged at the other side of the bottom of the box body 5, the air inlet 8 is connected with self-heating air, and the air outlet 7 is connected to an exhaust fan; unloading passageway 2 extends the one end of first conveyer belt 3, the fixed first conveyer belt support 9 that is provided with on the first conveyer belt 3, fixed first support frame 10 to ground of being provided with on the first conveyer belt support 9, the fixed second conveyer belt support 11 that is provided with on the second conveyer belt 4, be provided with support and intermediate strut to ground on the second conveyer belt support 11, be provided with on the first conveyer belt support 9 and prop up on being connected to second conveyer belt support 11, the drying-machine top is provided with dust removal pipeline 29, be provided with the fan on the dust removal pipeline 29, and dust removal pipeline 29 end is provided with dust collector, be provided with high temperature resistant layer on the 5 inner walls of box, can effectually detach the steam on the way of ore transport with the ore, and, still preheat the power ore when detaching, more make things convenient for the smelting pot. The problem of current ore carry water when entering into the smelting pot, influence the smelting pot effect is solved.
Example 3
Yellow phosphorus stove intelligence divides material feed proportioning system includes the following step:
firstly, drying the coke pieces, the silica and the ores by a dryer and conveying the coke pieces, the silica and the ores to a material cabinet, feeding the ores in the material cabinet into an electric furnace according to the proportion of raw materials for combustion,
the generated furnace slag and ferrophosphorus are discharged from a furnace eye regularly, ferrophosphorus is recovered at a slag passage, the furnace slag enters a slagging tank and is picked up and carried away in time, furnace gas such as generated yellow phosphorus, carbon monoxide, silicon tetrafluoride and the like escapes from a reaction melting zone, the furnace slag continuously supplements mixture through the upper part in the furnace and carries a part of mechanical impurities in the mixture, the mixture enters an absorption tower connected in series through a gas guide pipe, the absorption tower is sprayed and cooled by circulating water, the yellow phosphorus is condensed into liquid drops and enters a phosphorus receiving groove at the bottom of the tower together with the mechanical impurities to obtain crude phosphorus, the crude phosphorus is heated by steam, stirred and clarified, pure phosphorus is deposited at the bottom of the tower, and then enters a condensation tank, and the product yellow phosphorus, carbon monoxide and other tail gas are obtained after cooling and forming and are discharged after being purified by a flue gas treatment device,
the invention dries coke dices, silica and ores and then burns the coke dices, the silica and the ores in an electric furnace, burns phosphorite to reduce the moisture content of the phosphorite and increase the reaction speed, the flue gas treatment device comprises a water curtain cabinet 12, a spray tower 13 and an alkali washing tank, the side wall of the water curtain cabinet 12 is provided with an air inlet pipe 14, the bottom of the water curtain cabinet is provided with a first water outlet pipe 15, the top of the water curtain cabinet is provided with a first air outlet pipe 16, the tail end of the first air outlet pipe 16 extends into the spray tower 13 from the side wall of the spray tower 13, the bottom of the spray tower 13 is provided with a second water outlet pipe 17, the top of the spray tower 13 is provided with a second air outlet pipe 18, the tail end of the second air outlet pipe 18 is provided with a first branch pipe 19 and a second branch pipe 20, the first branch pipe 19 and the second branch pipe 20 respectively extend into the first alkali washing tank 21 and the second alkali washing tank 22, and the first alkali washing tank 21 and the second alkali washing tank 22 are internally provided with sodium hydroxide solution, the air inlet pipe 14 and the first air outlet pipe 16, the second air outlet pipe 18 is provided with a fan, the first branch pipe 19 is provided with a first electromagnetic valve 23, the second branch pipe 20 is provided with a second electromagnetic valve 30, the side walls of the first alkali washing tank 21 and the second alkali washing tank 22 are respectively provided with an alkali liquor inlet pipe 24 and an alkali liquor outlet pipe 25, the alkali liquor inlet pipe 24 and the alkali liquor outlet pipe 25 are provided with valves, and the tops of the first alkali washing tank 21 and the second alkali washing tank 22 are respectively provided with a valvePut blast pipe 26, be provided with first pH sensor 27 in the first alkali wash tank 21, be provided with second pH sensor 28 in the second alkali wash tank 22, first pH sensor 27, second pH sensor 28, first solenoid valve, the second solenoid valve all is connected with external control ware, the controller is connected with the outside alarm, first pH sensor 27, second pH sensor 28, first solenoid valve, the second solenoid valve, controller and alarm are by external power supply, can be earlier through cascade cabinet 1, most dust and particulate matter in the spray column 2 desorption tail gas, and detach part H2S and HF; then the mixture is fed into an alkali washing tank 3 to be washed by sodium hydroxide solution with the concentration of 5-15 percent, and H is further absorbed2S、HF、CO2When the device is used, a sodium hydroxide solution is discharged into the first alkali washing tank and the second alkali washing tank 3, smoke coming from the air inlet pipe 4 enters the water curtain cabinet 1 and the spray tower 2 to be washed by water, then enters the first alkali washing tank 11 from the second air outlet pipe 8 through the first branch pipe 9, the first pH sensor 16 detects acidity in the alkali washing process, when the acidity reaches a set lower limit, a signal is transmitted to the controller, the controller prompts the first electromagnetic valve to be closed, then the second electromagnetic valve is opened, the second alkali washing tank 12 is used for alkali washing, the alarm gives an alarm to remind an operator to change alkali liquor of the alkali washing tank with the lowered pH value, the first alkali washing tank 11 and the second alkali washing tank 12 are used for spare, and when the acidity of one alkali liquor is increased to the set lower limit, the other alkali washing tank is used for alkali washing, so that the washing effect is guaranteed.
Example 4
Yellow phosphorus stove intelligence divides material feed proportioning system includes the following step:
firstly, drying the coke pieces, the silica and the ores by a dryer and conveying the coke pieces, the silica and the ores to a material cabinet, feeding the ores in the material cabinet into an electric furnace according to the proportion of raw materials for combustion,
the generated furnace slag and ferrophosphorus are discharged from a furnace eye regularly, ferrophosphorus is recovered at a slag passage, the furnace slag enters a slagging pool and is picked up and carried away in time, furnace gas such as generated yellow phosphorus, carbon monoxide, silicon tetrafluoride and the like escapes from a reaction melting zone, the furnace slag continuously supplements a mixture through the upper part in the furnace and carries a part of mechanical impurities in the mixture, the furnace slag enters an absorption tower connected in series through a gas guide pipe, the absorption tower is sprayed and cooled by circulating water, the yellow phosphorus is condensed into liquid drops and enters a phosphorus receiving groove at the bottom of the tower together with the mechanical impurities to obtain crude phosphorus, the crude phosphorus is heated, stirred and clarified by steam, pure phosphorus is deposited at the bottom of the tower, and then the crude phosphorus enters a condensation pool, and is cooled and molded to obtain tail gas such as yellow phosphorus, carbon monoxide and the like, the tail gas is purified and discharged by a gas treatment device, coke, silica and ore are dried and then enter an electric furnace for combustion, and phosphorite is combusted, the reaction speed can be increased by reducing the moisture content.
The dryer comprises a discharging device, a conveying device and a drying device; the blanking device comprises a blanking hopper 1 and a blanking channel 2, the square blanking channel 2 is connected and arranged below the discharge hole of the blanking hopper 1, and the blanking device is arranged at the top of the drying device; the conveying device comprises a first conveying belt 3 and a second conveying belt 4; the first conveying belt 3 is fixedly arranged at the middle upper part of the drying device, and the second conveying belt 4 is fixedly arranged at the bottom of the drying device; the drying device comprises a box body 5, a heating rod 6, an air outlet 7 and an air inlet 8, wherein the box body 5 is arranged into a closed rectangular box body, the heating rod 6 is suspended at the top of the inner side of the box body 5 and connected to an electric cabinet, the air outlet 7 is arranged at one side of the bottom of the box body 5, the air inlet 8 is arranged at the other side of the bottom of the box body 5, the air inlet 8 is connected with self-heating air, and the air outlet 7 is connected to an exhaust fan; unloading passageway 2 extends the one end of first conveyer belt 3, the fixed first conveyer belt support 9 that is provided with on the first conveyer belt 3, fixed first support frame 10 to ground of being provided with on the first conveyer belt support 9, the fixed second conveyer belt support 11 that is provided with on the second conveyer belt 4, be provided with support and intermediate strut to ground on the second conveyer belt support 11, be provided with on the first conveyer belt support 9 and prop up on being connected to second conveyer belt support 11, the drying-machine top is provided with dust removal pipeline 29, be provided with the fan on the dust removal pipeline 29, and dust removal pipeline 29 end is provided with dust collector, be provided with high temperature resistant layer on the 5 inner walls of box, can effectually detach the steam on the way of ore transport with the ore, and, still preheat the power ore when detaching, more make things convenient for the smelting pot. The problem of current ore carry water when entering into the smelting pot, influence the smelting pot effect is solved.
The flue gas treatment device comprises a water curtain cabinet 12, a spray tower 13 and an alkali washing tank, wherein the side wall of the water curtain cabinet 12 is provided with an air inlet pipe 14, the bottom of the water curtain cabinet is provided with a first water outlet pipe 15, the top of the water curtain cabinet is provided with a first air outlet pipe 16, the tail end of the first air outlet pipe 16 extends into the spray tower 13 from the side wall of the spray tower 13, the bottom of the spray tower 13 is provided with a second water outlet pipe 17, the top of the spray tower 13 is provided with a second air outlet pipe 18, the tail end of the second air outlet pipe 18 is provided with a first branch pipe 19 and a second branch pipe 20, the first branch pipe 19 and the second branch pipe 20 respectively extend into the first alkali washing tank 21 and the second alkali washing tank 22, sodium hydroxide solution is arranged in the first alkali washing tank 21 and the second alkali washing tank 22, the air inlet pipe 14, the first air outlet pipe 16 and the second air outlet pipe 18 are respectively provided with a fan, the first electromagnetic valve 23 is arranged on the first branch pipe 19, the second electromagnetic valve 20 is arranged on the second branch pipe 20, alkali liquor inlet pipe 24 and an alkali liquor outlet pipe 25 are respectively arranged on the side walls of the first alkali washing tank 21 and the second alkali washing tank 22, the valves are arranged on the alkali liquor inlet pipe 24 and the alkali liquor outlet pipe 25, exhaust pipes 26 are arranged at the tops of the first alkali washing tank 21 and the second alkali washing tank 22, a first pH sensor 27 is arranged in the first alkali washing tank 21, a second pH sensor 28 is arranged in the second alkali washing tank 22, the first pH sensor 27, the second pH sensor 28, a first electromagnetic valve, the second electromagnetic valve is connected with an external controller, the controller is connected with an external alarm, the first pH sensor 27, the second pH sensor 28, the first electromagnetic valve, the second electromagnetic valve, the controller and the alarm are powered by an external power supply, the water curtain cabinet 1 can be firstly passed through, most of dust and particulate matters in tail gas are removed by the spray tower 2, and part of H is removed2S and HF; then the mixture is fed into an alkali washing tank 3 to be washed by sodium hydroxide solution with the concentration of 5-15 percent, and H is further absorbed2S、HF、CO2When the device is used, sodium hydroxide solution is discharged into the first alkali washing tank and the second alkali washing tank 3, flue gas coming from the air inlet pipe 4 enters the water curtain cabinet 1 and the spray tower 2 to be washed by water, then enters the first alkali washing tank 11 from the second air outlet pipe 8 through the first branch pipe 9, the first pH sensor 16 detects acidity in the alkali washing process, when the acidity reaches a set lower limit, a signal is transmitted to the controller, the controller enables the first electromagnetic valve to be closed, and then the second electromagnetic valve is openedThe magnetic valve is used for performing alkaline washing by using the second alkaline washing tank 12, the alarm gives an alarm to remind an operator to change the alkaline liquor of the alkaline washing tank with the lowered pH value, the first alkaline washing tank 11 and the second alkaline washing tank 12 are used for standby, when the acidity of one alkaline liquor is increased to a set lower limit, the other alkaline washing tank is used for performing alkaline washing, and the washing effect is guaranteed.
Experimental analysis:
experimental groups: drying the ores by the method, treating the tail gas by the method of the embodiment 4, performing 30 experiments on each group, and taking the average value;
in the control group, ores are directly put into the electric furnace, and tail gas is simply treated;
the experimental results are as follows: the experimental results of the removal efficiency of H2S and HF in the tail gas are shown in table 1:
H2O/% H2S/% HF/%
experimental group 1.2 99.6% 97%
Control group 1.8 94.9% 86%
From the above table, it can be seen that the dried ore can be treated by the tail gas treatment device of the present invention, so that the treatment efficiency can be increased.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims (6)

1. Yellow phosphorus stove intelligence divides material feed proportioning system, its characterized in that:
the method comprises the following steps:
firstly, drying the coke pieces, the silica and the ores by a dryer and conveying the coke pieces, the silica and the ores to a material cabinet, feeding the ores in the material cabinet into an electric furnace according to the proportion of raw materials for combustion,
the generated furnace slag and ferrophosphorus are periodically discharged from a furnace eye, ferrophosphorus is recovered at a slag passage, the furnace slag enters a slag melting tank and is timely picked up and carried away, furnace gas such as generated yellow phosphorus, carbon monoxide, silicon tetrafluoride and the like escapes from a reaction melting zone, the furnace slag continuously replenishes a mixture through the upper part in the furnace and carries a part of mechanical impurities in the mixture, the furnace slag enters an absorption tower connected in series through a gas guide pipe, the absorption tower is sprayed and cooled by circulating water, the yellow phosphorus is condensed into liquid drops and enters a phosphorus receiving groove at the bottom of the tower together with the mechanical impurities to obtain crude phosphorus, the crude phosphorus is heated by steam, stirred and clarified, pure phosphorus is deposited at the bottom of the tower, and then the crude phosphorus enters a condensation tank, and is cooled and molded to obtain tail gas such as product yellow phosphorus, carbon monoxide and the like, and the tail gas is purified by a flue gas treatment device and then discharged.
2. The intelligent yellow phosphorus furnace material distributing and batching system of claim 1, wherein: the dryer comprises a discharging device, a conveying device and a drying device; the blanking device comprises a blanking hopper (1) and a blanking channel (2), the square blanking channel (2) is connected and arranged below the discharge hole of the blanking hopper (1), and the blanking device is arranged at the top of the drying device; the conveying device comprises a first conveying belt (3) and a second conveying belt (4); the first conveying belt (3) is fixedly arranged at the middle upper part of the drying device, and the second conveying belt (4) is fixedly arranged at the bottom of the drying device; the drying device comprises a box body (5), a heating rod (6), an air outlet (7) and an air inlet (8), wherein the box body (5) is arranged to be a closed rectangular box body, the heating rod (6) is suspended at the top of the inner side of the box body (5) and connected to an electric cabinet, the air outlet (7) is arranged on one side of the bottom of the box body (5), the air inlet (8) is arranged on the other side of the bottom of the box body (5), the air inlet (8) is connected with self-heating air, and the air outlet (7) is connected to an exhaust fan; unloading passageway (2) extends the one end of first conveyer belt (3), fixed first conveyer belt support (9) of being provided with on first conveyer belt (3), fixed first support frame (10) to ground of being provided with on first conveyer belt support (9), fixed second conveyer belt support (11) of being provided with on second conveyer belt (4), be provided with support and middle support to ground on second conveyer belt support (11), be provided with leg joint on first conveyer belt support (9) to second conveyer belt support (11).
3. The intelligent yellow phosphorus furnace material distributing and batching system of claim 1, wherein: the flue gas treatment device comprises a water curtain cabinet (12), a spray tower (13) and an alkaline washing tank, wherein an air inlet pipe (14) is arranged on the side wall of the water curtain cabinet (12), a first water outlet pipe (15) is arranged at the bottom of the water curtain cabinet, a first air outlet pipe (16) is arranged at the top of the water curtain cabinet, the tail end of the first air outlet pipe (16) extends into the spray tower (13) from the side wall of the spray tower (13), a second water outlet pipe (17) is arranged at the bottom of the spray tower (13), a second air outlet pipe (18) is arranged at the top of the spray tower (13), a first branch pipe (19) and a second branch pipe (20) are arranged at the tail end of the second air outlet pipe (18), the first branch pipe (19) and the second branch pipe (20) extend into the first alkaline washing tank (21) and the second alkaline washing tank (22) respectively, and sodium hydroxide solution is arranged in the first alkaline washing tank (21) and the second alkaline washing tank (22).
4. The intelligent yellow phosphorus furnace material distributing and batching system of claim 3, wherein: the device comprises an air inlet pipe (14), a first air outlet pipe (16), fans are arranged on second air outlet pipes (18), a first electromagnetic valve (23) is arranged on a first branch pipe (19), a second electromagnetic valve (30) is arranged on a second branch pipe (20), the side walls of a first alkali washing tank (21) and a second alkali washing tank (22) are respectively provided with an alkali liquor inlet pipe (24) and an alkali liquor outlet pipe (25), valves are arranged on the alkali liquor inlet pipe (24) and the alkali liquor outlet pipe (25), exhaust pipes (26) are arranged at the tops of the first alkali washing tank (21) and the second alkali washing tank (22), a first pH sensor (27) is arranged in the first alkali washing tank (21), a second pH sensor (28) is arranged in the second alkali washing tank (22), the first pH sensor (27) and the second pH sensor (28) are connected with an external controller, and the controller is connected with an external alarm, the first pH sensor (27), the second pH sensor (28), the first electromagnetic valve, the second electromagnetic valve, the controller and the alarm are all powered by an external power supply.
5. The intelligent yellow phosphorus furnace material distributing and batching system of claim 3, wherein: the top of the dryer is provided with a dust removal pipeline (29), the dust removal pipeline (29) is provided with a fan, and the tail end of the dust removal pipeline (29) is provided with a dust removal device.
6. The intelligent yellow phosphorus furnace material distributing and batching system of claim 2, wherein: the inner wall of the box body (5) is provided with a high temperature resistant layer.
CN202111088987.3A 2021-09-16 2021-09-16 Intelligent material distributing and batching system of yellow phosphorus furnace Pending CN113772643A (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102992285A (en) * 2012-12-19 2013-03-27 西安瑞驰节能工程有限责任公司 Method and equipment for producing yellow phosphorus by utilizing closed annular heating furnace
CN103768907A (en) * 2012-10-26 2014-05-07 中国石油化工股份有限公司 Deep purification method for oxidizing and alkali-washing yellow phosphorus tail gas
CN204412053U (en) * 2015-01-22 2015-06-24 四川蓝海化工（集团）有限公司 A kind of gas collection system of Yellow phosphorus recovering device
CN104760941A (en) * 2015-03-18 2015-07-08 贵州开磷集团股份有限公司 Preparation method of yellow phosphorus
CN105132040A (en) * 2015-08-24 2015-12-09 西安新环能源有限公司 Yellow phosphorus tail gas purification method and system
CN106000056A (en) * 2016-07-18 2016-10-12 贵州省惠水川东化工有限公司 Yellow phosphorus tail gas purification method and system
CN109573971A (en) * 2018-12-25 2019-04-05 石家庄新华能源环保科技股份有限公司 A kind of device producing yellow phosphorus
CN212205537U (en) * 2020-03-27 2020-12-22 山西义诺电子材料有限公司 Drying device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103768907A (en) * 2012-10-26 2014-05-07 中国石油化工股份有限公司 Deep purification method for oxidizing and alkali-washing yellow phosphorus tail gas
CN102992285A (en) * 2012-12-19 2013-03-27 西安瑞驰节能工程有限责任公司 Method and equipment for producing yellow phosphorus by utilizing closed annular heating furnace
CN204412053U (en) * 2015-01-22 2015-06-24 四川蓝海化工（集团）有限公司 A kind of gas collection system of Yellow phosphorus recovering device
CN104760941A (en) * 2015-03-18 2015-07-08 贵州开磷集团股份有限公司 Preparation method of yellow phosphorus
CN105132040A (en) * 2015-08-24 2015-12-09 西安新环能源有限公司 Yellow phosphorus tail gas purification method and system
CN106000056A (en) * 2016-07-18 2016-10-12 贵州省惠水川东化工有限公司 Yellow phosphorus tail gas purification method and system
CN109573971A (en) * 2018-12-25 2019-04-05 石家庄新华能源环保科技股份有限公司 A kind of device producing yellow phosphorus
CN212205537U (en) * 2020-03-27 2020-12-22 山西义诺电子材料有限公司 Drying device

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