CN112156600A - Method and device for preventing pipeline for conveying yellow phosphorus furnace gas from being blocked and removing dust - Google Patents
Method and device for preventing pipeline for conveying yellow phosphorus furnace gas from being blocked and removing dust Download PDFInfo
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- CN112156600A CN112156600A CN202010990666.1A CN202010990666A CN112156600A CN 112156600 A CN112156600 A CN 112156600A CN 202010990666 A CN202010990666 A CN 202010990666A CN 112156600 A CN112156600 A CN 112156600A
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- dust
- yellow phosphorus
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- furnace gas
- phosphorus furnace
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- 239000011810 insulating material Substances 0.000 claims description 2
- 239000011490 mineral wool Substances 0.000 claims description 2
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- 235000019362 perlite Nutrition 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
- F16L53/35—Ohmic-resistance heating
- F16L53/38—Ohmic-resistance heating using elongate electric heating elements, e.g. wires or ribbons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/028—Composition or method of fixing a thermally insulating material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/04—Arrangements using dry fillers, e.g. using slag wool which is added to the object to be insulated by pouring, spreading, spraying or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/10—Bandages or covers for the protection of the insulation, e.g. against the influence of the environment or against mechanical damage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrostatic Separation (AREA)
Abstract
The invention discloses a method and a device for preventing a pipeline for conveying yellow phosphorus furnace gas from being blocked and removing dust, wherein the method comprises the steps of introducing yellow phosphorus furnace gas generated in the process of producing yellow phosphorus by an electric furnace method into a heater for heating, then conveying the yellow phosphorus furnace gas through a heat-insulating pipe coupled by a multilayer structure, and finally entering a sealed heat-insulating electric bag dust remover, wherein the yellow phosphorus furnace gas firstly enters an electric dust removing area of the device, cathode corona discharge is carried out in the electric dust removing area, dust in the yellow phosphorus furnace gas is charged and moves to an anode for deposition on the electric dust removing area, dust is removed by electrode vibration, the yellow phosphorus furnace gas subjected to electric dust removal enters a cloth bag dust removing area, the rest dust is filtered through a cloth bag, and the cloth bag is subjected to pulse dust removal to finally achieve the; the method and the device solve the problem that the pipeline is blocked due to caking caused by temperature reduction in the conveying process of the yellow phosphorus furnace gas, simultaneously complete the separation of dust and gas in the yellow phosphorus furnace gas, and have the advantages of high removal efficiency, strong practicability, reasonable structure, small occupied area and the like.
Description
Technical Field
The invention belongs to the technical field of yellow phosphorus furnace gas purification, and particularly relates to a method and a device for preventing a pipeline for conveying yellow phosphorus furnace gas from being blocked and removing dust.
Background
With the development of chemical industry, the amount of waste gas discharged every year is increasing year by year, electric furnaces are widely applied in the fields of phosphorus chemical industry, nonferrous metallurgy, coal chemical industry and the like, the components of generated furnace gas are complex, serious pollution is brought to the environment, and the treatment standard of the furnace gas is becoming strict day by day.
In the conveying process of the yellow phosphorus furnace gas, due to the influence of factors such as long pipelines, weak heat preservation capability of pipelines and the like, the temperature in the pipelines is reduced, when the temperature is 180 ℃ lower than the dew point temperature of the yellow phosphorus, phosphorus steam can be cooled to become liquid yellow phosphorus, and the yellow phosphorus is agglomerated to block the pipelines, so that the pipeline conveying is difficult, and the safety risk is brought; at present, a part of yellow phosphorus tail gas conveying pipelines of yellow phosphorus plants need manual operation intervention to avoid phosphorus steam dew point cooling agglomeration to block the pipelines, so that manpower and material resources are consumed, and the problems of energy consumption, complex process and the like exist when the pipelines for conveying yellow phosphorus tail gas of some yellow phosphorus plants adopt a jacket steam heating pipeline mode.
Aiming at the purification of yellow phosphorus furnace gas, most domestic wet spraying dust removal technologies are adopted, the method not only consumes a large amount of water, but also forms a large amount of sludge phosphorus which is a byproduct to be subsequently treated, most of the conventional dry dust removal equipment cannot meet the requirements, only large-particle dust can be removed by mechanical dust removal, the required temperature of bag type dust removal cannot be lower than the dew point temperature of the furnace gas, the bag type dust removal equipment is not suitable for removing dust with strong viscosity, is limited by temperature, has a complex structure and needs more reasonable design, the ash removal is an important part of the dust removal, and the conventional modes of mechanical vibration, pulse ash removal and the like have the problems of high energy consumption, high equipment maintenance rate.
Disclosure of Invention
The invention provides a method for preventing a pipeline for conveying yellow phosphorus furnace gas from being blocked and dedusting, which aims at solving the problems in the prior art, and the method comprises the steps of introducing yellow phosphorus furnace gas generated in the process of producing yellow phosphorus by an electric furnace method into a heater for heating, then conveying the yellow phosphorus furnace gas through a heat-insulating pipe coupled with a multilayer structure, preventing the yellow phosphorus furnace gas from being caked and blocking the pipeline in the conveying process, and finally entering a sealed heat-insulating electric bag dust remover.
The heating temperature of the heater is 200-275 ℃.
The heat preservation pipe coupled by the multilayer structure comprises a protective layer, a heat preservation layer, a heating layer and a heat transfer layer from outside to inside; the heating layer is arranged between the heat preservation layer and the heat transfer layer, the protective layer is sleeved on the outer side of the heat preservation layer, and the layers are tightly connected; the heat transfer layer is an aluminum pipe or a copper pipe, the heating layer is composed of an electric heating wire or an electric heating pipe, magnesium oxide is attached to ensure insulation, and the material is iron-chromium-aluminum, nickel-chromium and the like; the heat-insulating layer is made of one of heat-insulating materials of aerogel felt, glass wool, rock wool, expanded perlite, foamed cement, polyurethane foam, polystyrene board and phenolic foam, and the protective layer is a stainless steel pipe; the heating layer is connected with a direct current power supply, the voltage is 10-380V, the heating temperature of the heating layer is 240-275 ℃, and a temperature sensor is arranged on the heat preservation pipe coupled with the multilayer structure and used for monitoring temperature change.
The device for completing the method comprises a yellow phosphorus electric furnace, a heater, a heat preservation pipe coupled with a multilayer structure, an electric bag dust remover and a fan, wherein the yellow phosphorus electric furnace is communicated with the heater through a pipeline, the heater is communicated with the electric bag dust remover through the heat preservation pipe coupled with the multilayer structure, and the fan is connected with the electric bag dust remover; the heat insulation pipe coupled by the multilayer structure comprises a protective layer, a heat insulation layer, a heating layer and a heat transfer layer; the electro-bag dust remover comprises a shell, wherein the shell is divided into an electro-dust removing chamber, a drainage chamber and a bag dust removing chamber by a partition plate, and the drainage chamber is positioned between the electro-dust removing chamber and the bag dust removing chamber and is communicated with 2 chambers; the air inlet is arranged on one side of the lower part of the electric precipitation chamber, the anode and the cathode are alternately suspended in the electric precipitation chamber through an insulating bracket, and the anode and the cathode are respectively connected with the anode and the cathode of a power supply; the rapping mechanism is arranged on the shell and positioned outside the electric dust removal chamber, the rapping mechanism is matched with a rapping rod fixed on the anode and used for rapping and removing dust, and the ash bucket I is arranged at the bottom of the electric dust removal chamber; the cloth bag dust chamber is divided into a gas purifying chamber and a dust removing cavity by a cloth bag bracket; the cloth bag is fixed below the cloth bag support and is positioned in the dust removal cavity, the air purifying chamber is communicated with the cloth bags, a pulse spray nozzle is arranged at the opening of the top of each cloth bag, the pulse spray nozzles are connected with a dust removal fan through pipelines, an air outlet is formed in the air purifying chamber and is connected with the fan, and the ash bucket II is arranged at the bottom of the cloth bag dust removal chamber.
An electric valve, a pressure gauge and a flow meter are arranged on a pipeline between the yellow phosphorus electric furnace and the heater.
The anode is a plate-shaped electrode, the cathode is a plate-shaped electrode consisting of a frame body and a cathode line, the cathode line is arranged on the frame body, and the cathode line is a bur-type cathode line or a zigzag cathode line.
The cloth bag is a cylindrical or hollow cuboid with an opening at the top.
The mechanism of shaking includes motor, axis of rotation, arm I, arm II, shakes and beats the head, and the motor is fixed on the casing and is located the electrostatic precipitator outdoor, and the axis of rotation sets up on the casing and links firmly with the motor output shaft through the support activity, and I one end in many arms is fixed in the axis of rotation, and the other end is articulated through round pin and II one ends in arm, is fixed with on II other ends in arm and shakes and beats the head, shakes and beats the head and fix and shake on positive pole and beat the pole and cooperate.
The heat preservation layer is arranged outside the shell, and the temperature in the shell is 230-270 ℃.
And valves are arranged at the outlets of the ash hopper I and the ash hopper II.
The electric valve is a high-temperature high-pressure regulating valve, and the fan is an explosion-proof gas fan.
The power supply is an alternating current power supply, a direct current power supply or a pulse power supply, and the voltage is 10-200 kV.
The cloth bag is made of high-temperature resistant common filter cloth and is made of polytetrafluoroethylene, glass fiber, aromatic polyamide and the like.
The method of the invention has the following advantages:
1. the invention adopts the heater and the heat preservation pipe coupled by the multilayer structure to convey the yellow phosphorus furnace gas, thereby solving the problem that the temperature is reduced in the conveying process of the yellow phosphorus furnace gas, and the yellow phosphorus furnace gas is agglomerated to block the pipeline;
2. the device adopts the integral design of yellow phosphorus furnace gas heating, heat preservation and dust removal; the electric bag dust remover adopts a mode of partitioning and connecting electric dust removal and bag dust removal in series, has a compact structure and small occupied area, adopts a plate-shaped anode, adopts a cylindrical or three-dimensional plate-shaped bag, increases the contact area, has high dust removal efficiency, has good heat preservation and tightness of the whole device, and prevents the yellow phosphorus furnace from being cooled and blocking the bag;
3. the anode is vibrated by a vibrating mechanism to generate vibration force to achieve the purpose of removing ash, so that the energy consumption and the part damage rate are reduced; the cloth bag adopts a pulse ash removal mode, compressed air generates shock waves, and the cloth bag is vibrated to shake off dust.
Drawings
FIG. 1 is a schematic view of the apparatus of the present invention;
FIG. 2 is a schematic cross-sectional view of a multi-layer structure coupled insulating pipe;
FIG. 3 is a schematic view of the structure of an electric bag dust collector;
fig. 4 is a schematic view of the rapping mechanism;
in the figure: 1-yellow phosphorus electric furnace; 2-a heater; 3-insulating pipes coupled in a multilayer structure; 4-electric bag dust remover; 5, a fan; 6, electrically operated valve; 7-a protective layer; 8, insulating layers; 9 heating the layer; 10-a heat transfer layer; 11-an air inlet; 12-an anode; 13-negative grade; 14-a power supply; 15-an insulating support; 16-an electric machine; 17-an electric dust removal chamber; 18-bag dust chamber; 19-a drainage chamber; 20-cloth bag; 21-a dust removal fan; 22-a pulse jet; 23-air purification chamber; 24-an air outlet; 25-ash bucket I; 26-ash bucket II; 27-a housing; 28-cloth bag support; 29-rotating shaft; 30-arm I; 31-arm II; 32-vibrating the head; 33-rapping bar.
Detailed Description
The invention is explained in more detail below with reference to the figures and examples, without limiting the scope of the invention.
The method for preventing the pipeline for conveying the yellow phosphorus furnace gas from being blocked and dedusting in the following embodiment comprises the steps of introducing the yellow phosphorus furnace gas generated in the yellow phosphorus production process by an electric furnace method into a heater for heating, then conveying the yellow phosphorus furnace gas through a heat preservation pipe coupled with a multilayer structure, preventing the yellow phosphorus furnace gas from being caked and blocking the pipeline in the conveying process, and finally entering a sealed heat-preservation electric bag dust remover.
Example 1: as shown in fig. 1-4, the device for preventing the pipeline for conveying yellow phosphorus furnace gas from being blocked and dedusting comprises a yellow phosphorus electric furnace 1, a heater 2, a heat preservation pipe 3 coupled with a multilayer structure, an electric bag dust remover 4 and a fan 5, wherein the yellow phosphorus electric furnace 1 is communicated with the heater 2 through a pipeline, an electric valve 6, a pressure gauge and a flowmeter are arranged on the pipeline, the heater 2 is communicated with the electric bag dust remover 4 through the heat preservation pipe 3 coupled with the multilayer structure, and the fan 5 is connected with the electric bag dust remover 4; the heat preservation pipe 3 coupled by the multilayer structure comprises a protective layer 7, a heat preservation layer 8, a heating layer 9 and a heat transfer layer 10; the heating layer 10 is arranged between the heat preservation layer and the heat transfer layer, the protective layer is sleeved on the outer side of the heat preservation layer, and the temperature sensor is arranged on the heat preservation pipe 3 coupled by the multilayer structure;
the electric bag dust collector 4 comprises a shell 27, the shell 27 is internally divided into an electric dust collection chamber 17, a drainage chamber 19 and a cloth bag dust collection chamber 18 by a partition plate, and the drainage chamber 19 is positioned between the electric dust collection chamber 17 and the cloth bag dust collection chamber 18 and communicates 2 chambers; the air inlet 11 is arranged on one side of the lower part of the electric dust removal chamber 17, the anode 12 and the cathode 13 are alternately suspended in the electric dust removal chamber 17 through an insulating support 15, the anode 12 and the cathode 13 are respectively connected with the anode and the cathode of a power supply 14, the anode is a plate-shaped stainless steel electrode, the cathode 13 is a plate-shaped electrode consisting of a frame body and a cathode wire, the cathode wire is arranged in the frame body, and the cathode wire is a bur type lead ladder alloy wire; the rapping mechanism is arranged on the shell and positioned outside the electric dust removal chamber 17, the rapping mechanism comprises a motor 16, a rotating shaft 29, an arm I30, an arm II 31 and a rapping head 32, the motor is fixed on the shell 27 and positioned outside the electric dust removal chamber 17, the rotating shaft is movably arranged on the shell through a bracket and fixedly connected with an output shaft of the motor, one end of each of a plurality of arms I is fixed on the rotating shaft 29, the other end of each of the plurality of arms I is hinged with one end of the arm II through a pin, the other end of each of the plurality of arms II is fixed with the rapping head 32, each anode is fixed with a rapping rod 33, and one end of each rapping rod 33 penetrates through the shell; the ash bucket I25 is arranged at the bottom of the electric dust removing chamber 30; the cloth bag dust chamber 18 is divided into a gas purifying chamber 23 and a dust removing cavity by a cloth bag bracket 28; the cloth bags 20 are fixed below the cloth bag support and located in the dust removing cavity, the air purifying chamber 23 is communicated with the cloth bags 20, a pulse spray nozzle 22 is arranged at the opening of the top of each cloth bag 20, the cloth bags are cylindrical, the 4 pulse spray nozzles 22 are connected with the dust removing fan 21 through pipelines, an air outlet 24 is formed in the air purifying chamber 23, the air outlet 24 is connected with the fan 5, the ash bucket II 26 is arranged at the bottom of the cloth bag dust removing chamber 18, and valves are arranged at the outlets of the ash bucket I and the ash bucket II; the cloth bag is made of high-temperature resistant common filter cloth and is made of glass fiber;
yellow phosphorus furnace gas is generated in the process of producing yellow phosphorus by an electric furnace method in a certain yellow phosphorus plant, and the flow rate is 1000m3About/h, the temperature is about 150 ℃, yellow phosphorus furnace gas directly enters a heater for heating through a pipeline, the temperature is raised to about 240 ℃, the heated yellow phosphorus furnace gas is conveyed to an electric bag dust collector through a heat preservation pipe coupled with a multilayer structure, a heating layer of the heat preservation pipe coupled with the multilayer structure is formed by winding an electric heating wire, and the electric heating wire is used for heatingThe wires are connected with a power supply, the heating temperature is 245 ℃, heat is transferred to the heat transfer layer, the heat preservation layer is used for preventing heat loss, the temperature in the heat preservation pipe is kept at about 240 ℃, the dew point of phosphorus steam is prevented from caking and blocking a pipeline, yellow phosphorus furnace gas enters an electric dust removal chamber 17 of the electric dust remover from an air inlet 11, pulse voltage of 50kV is introduced into electrodes, cathode corona discharge is carried out, and dust is charged and is transferred to an anode by coulomb force; when the dust of the anode is deposited to the degree needing to be cleaned, a motor of a rapping mechanism is started, the motor drives a rotating shaft to rotate, one end of an arm I is fixed on the rotating shaft, the arm II and a rapping head are swung by the rotation of the arm I, when the rapping head rotates to a certain height, the rapping head freely falls down under the action of gravity and raps on a rapping rod fixed on the anode, the anode vibrates, and the dust attached to the electrode falls into an ash hopper I so as to achieve the purpose of cleaning ash; after the yellow phosphorus furnace gas is dedusted by the electric dedusting chamber, the yellow phosphorus furnace gas enters the bottom of the cloth bag dedusting chamber from the drainage chamber 19 and enters the cloth bag through the cloth bag, the residual dust in the yellow phosphorus furnace gas is blocked by the filter cloth on the cloth bag and is adsorbed on the filter cloth or falls into the dust hopper II, and the gas entering the cloth bag enters the gas purifying chamber 23 through the upper end opening of the cloth bag and is discharged under the action of the fan 5; the dust on the cloth bag falls into a dust hopper II under the action of a dust removal fan and a pulse spray head, the temperature in the electric bag dust remover is about 240 ℃, the device is sealed, the oxygen content is lower than 4 percent, the air tightness is good, and the dust concentration of outlet furnace gas is lower than 5mg/m3So as to achieve the purpose of separating gas and dust of the yellow phosphorus furnace.
Example 2: the structure of the device of the embodiment is the same as that of the embodiment 1, and the difference is that: the cloth bag is made of high-temperature resistant common filter cloth and is made of polytetrafluoroethylene, the cathode line is arranged in the frame body, and the cathode line is a sawtooth-shaped cathode line; the anode is a plate-shaped alloy steel electrode, the cathode line is a sawtooth-shaped nichrome line, and the cloth bag is a hollow cuboid with an opening at the top;
yellow phosphorus furnace gas with the flow of 2000m is generated in the process of producing yellow phosphorus by an electric furnace method in a certain yellow phosphorus plant3About/h, the temperature is about 190 ℃, yellow phosphorus furnace gas directly enters a heater for heating through a pipeline, the temperature is raised to about 250 ℃, the heated yellow phosphorus furnace gas is conveyed to an electric bag dust collector through a heat preservation pipe coupled with a multilayer structure, and the multilayer structure comprises a plurality of layersThe heating layer of the structurally coupled heat preservation pipe is formed by winding an electric heating wire, the electric heating wire is connected with a power supply, the heating temperature is 255 ℃, heat is transferred to the heat transfer layer, the heat preservation layer is used for preventing heat loss, the temperature in the heat preservation pipe is kept at about 250 ℃, the pipeline is prevented from being blocked by phosphorus steam dew point agglomeration, yellow phosphorus furnace gas enters an electric dust removal chamber 30 of the electric dust remover through an air inlet 11, direct current voltage of 90kV is introduced into an electrode, cathode corona discharge is carried out, and dust is charged and is transferred to an anode by coulomb force; when the dust of the anode is deposited to the degree needing to be cleaned, a motor of a rapping mechanism is started, the motor drives a rotating shaft to rotate, one end of an arm I is fixed on the rotating shaft, the arm II and a rapping head are swung by the rotation of the arm I, when the rapping head rotates to a certain height, the rapping head freely falls down under the action of gravity and raps on a rapping rod fixed on the anode, the anode vibrates, and the dust attached to the electrode falls into an ash hopper I so as to achieve the purpose of cleaning ash; after the yellow phosphorus furnace gas is dedusted by the electric dedusting chamber, the yellow phosphorus furnace gas enters the bottom of the cloth bag dedusting chamber from the drainage chamber and enters a cloth bag through the cloth bag, residual dust in the yellow phosphorus furnace gas is blocked by filter cloth on the cloth bag and is adsorbed on the filter cloth or falls into a dust hopper II, and the gas entering the cloth bag enters a gas purifying chamber through an opening at the upper end of the cloth bag and is discharged under the action of a fan; the dust on the cloth bag falls into a dust hopper II under the action of a dust removal fan and a pulse spray head, the temperature in the electric bag dust remover is about 250 ℃, the device is sealed, the oxygen content is lower than 4 percent, the air tightness is good, and the dust concentration of outlet furnace gas is lower than 5mg/m3So as to achieve the purpose of separating gas and dust of the yellow phosphorus furnace.
Claims (10)
1. A method for preventing the pipeline for conveying yellow phosphorus furnace gas from being blocked and removing dust is characterized in that: the method comprises the steps of introducing yellow phosphorus furnace gas generated in the process of producing yellow phosphorus by an electric furnace method into a heater for heating, then conveying the yellow phosphorus furnace gas through a heat preservation pipe coupled with a multilayer structure, preventing the yellow phosphorus furnace gas from caking and blocking a pipeline in the conveying process, finally conveying the yellow phosphorus furnace gas into a sealed heat preservation electric bag dust remover, firstly conveying the yellow phosphorus furnace gas into an electric dedusting area of the device, performing cathode corona discharge in the electric dedusting area, charging dust in the yellow phosphorus furnace gas, moving the dust to an anode for deposition on the dust, performing vibration and dust removal on an electrode, conveying the yellow phosphorus furnace gas subjected to electric dedusting into a bag dedusting area, filtering the residual dust through a bag, and performing pulse dust removal on the bag to finally separate the dust and the gas in the yellow.
2. The method for preventing the pipeline for conveying yellow phosphorus furnace gas from being blocked and dedusting as claimed in claim 1, wherein the method comprises the following steps: the heating temperature of the heater is 200-275 ℃.
3. The method for preventing the pipeline for conveying yellow phosphorus furnace gas from being blocked and dedusting as claimed in claim 1, wherein the method comprises the following steps: the multilayer structure coupled heat preservation pipe comprises a protective layer, a heat preservation layer, a heating layer and a heat transfer layer from outside to inside; the heat transfer layer is an aluminum pipe or a copper pipe, and the heating layer is composed of an electric heating wire or an electric heating pipe; the heat-insulating layer is made of one of heat-insulating materials such as aerogel felt, glass wool, rock wool, expanded perlite, foamed cement, polyurethane foam, polystyrene board and phenolic foam, and the protective layer is a stainless steel pipe; the heating layer is connected with a direct current power supply, the voltage is 10-380V, and the heating temperature of the heating layer is 240-275 ℃.
4. The device for preventing the pipeline for conveying yellow phosphorus furnace gas from being blocked and dedusting is characterized by comprising the following steps of: the device comprises a yellow phosphorus electric furnace (1), a heater (2), a multilayer structure coupled heat preservation pipe (3), an electric bag dust remover (4) and a fan (5), wherein the yellow phosphorus electric furnace (1) is communicated with the heater (2) through a pipeline, the heater (2) is communicated with the electric bag dust remover (4) through the multilayer structure coupled heat preservation pipe (3), and the fan (5) is connected with the electric bag dust remover (4);
the electric bag dust collector (4) comprises a shell (27), the shell (27) is internally divided into an electric dust collection chamber (17), a drainage chamber (19) and a cloth bag dust collection chamber (18) by a partition plate, and the drainage chamber (19) is positioned between the electric dust collection chamber (17) and the cloth bag dust collection chamber (18) and communicates 2 chambers; the air inlet (11) is arranged on one side of the lower part of the electric dust removal chamber (17), the anode (12) and the cathode (13) are alternately suspended in the electric dust removal chamber (17) through an insulating support (15), and the anode (12) and the cathode (13) are respectively connected with the anode and the cathode of the power supply (14); the rapping mechanism is arranged on the shell and positioned at the outer side of the electric dust removal chamber (17), the rapping mechanism is matched with a rapping rod fixed on the anode and used for rapping and cleaning dust, and the ash bucket I (25) is arranged at the bottom of the electric dust removal chamber (30);
the cloth bag dust chamber (18) is divided into a gas purifying chamber (23) and a dust removing cavity by a cloth bag bracket (28); the cloth bag (20) is fixed below the cloth bag support and located in the dust removal cavity, the air purifying chamber (23) is communicated with the cloth bag (20), a pulse spray nozzle (22) is arranged at the opening of the top of each cloth bag (20), the pulse spray nozzles (22) are connected with the dust removal fan (21) through a pipeline, an air outlet (24) is formed in the air purifying chamber (23), the air outlet (24) is connected with the fan (5), and the ash bucket II (26) is arranged at the bottom of the cloth bag dust removal chamber (18).
5. The apparatus of claim 4, wherein: an electric valve (6), a pressure gauge and a flow meter are arranged on a pipeline between the yellow phosphorus electric furnace (1) and the heater (2).
6. The apparatus of claim 4, wherein: the anode (12) is a plate-shaped electrode, the cathode (13) is a plate-shaped electrode consisting of a frame body and a cathode line, the cathode line is arranged on the frame body, and the cathode line is a bur-type cathode line or a zigzag cathode line.
7. The apparatus of claim 4, wherein: the cloth bag is a cylindrical or hollow cuboid with an opening at the top.
8. The device for preventing the pipeline for conveying yellow phosphorus furnace gas from being blocked and removing dust of claim 4, which is characterized in that: the rapping mechanism comprises a motor (16), a rotating shaft (29), an arm I (30), an arm II (31) and a rapping head (32), wherein the motor is fixed on a shell (27) and positioned outside an electric dust chamber (17), the rotating shaft is movably arranged on the shell through a support and fixedly connected with an output shaft of the motor, one ends of a plurality of arms I are fixed on the rotating shaft (29), the other ends of the arms I are hinged with one ends of the arms II through pins, the other ends of the arms II are fixed with the rapping head (32), and the rapping head (32) is matched with a rapping rod (33) fixed on an anode.
9. The apparatus of claim 4, wherein: the shell (27) is externally provided with an insulating layer.
10. The apparatus of claim 4, wherein: valves are arranged at the outlets of the ash hopper I (25) and the ash hopper II (26).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551045A (en) * | 2021-06-15 | 2021-10-26 | 吕志翼 | Be provided with special heat preservation valve of pitch flue gas |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2788888Y (en) * | 2005-05-12 | 2006-06-21 | 西安建筑科技大学 | Electric-bag combined dust cleaner |
| CN201389414Y (en) * | 2009-03-23 | 2010-01-27 | 鞍山凯信工矿设备有限公司 | High efficiency electric-bag dust remover |
| CN102824804A (en) * | 2012-08-29 | 2012-12-19 | 华南理工大学 | Skewed gas flow electric bag composite dust remover |
| CN104922986A (en) * | 2015-06-03 | 2015-09-23 | 成都易态科技有限公司 | Yellow phosphorus furnace gas dry dusting filtration system |
| CN105004192A (en) * | 2015-07-28 | 2015-10-28 | 成都易态科技有限公司 | Gas filtering system and yellow phosphorus furnace gas filtering method |
| CN105727676A (en) * | 2016-04-12 | 2016-07-06 | 昆明理工大学 | Method and device for electromagnetic collaborative electrofiltration dust removal |
| CN205965400U (en) * | 2016-08-23 | 2017-02-22 | 河北高科环保集团有限公司 | High -efficient electrostatic fabric filter |
| CN206414911U (en) * | 2016-12-09 | 2017-08-18 | 厦门三维丝环保股份有限公司 | Electrofiltration cylinder complex dust collector |
-
2020
- 2020-09-19 CN CN202010990666.1A patent/CN112156600A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2788888Y (en) * | 2005-05-12 | 2006-06-21 | 西安建筑科技大学 | Electric-bag combined dust cleaner |
| CN201389414Y (en) * | 2009-03-23 | 2010-01-27 | 鞍山凯信工矿设备有限公司 | High efficiency electric-bag dust remover |
| CN102824804A (en) * | 2012-08-29 | 2012-12-19 | 华南理工大学 | Skewed gas flow electric bag composite dust remover |
| CN104922986A (en) * | 2015-06-03 | 2015-09-23 | 成都易态科技有限公司 | Yellow phosphorus furnace gas dry dusting filtration system |
| CN105004192A (en) * | 2015-07-28 | 2015-10-28 | 成都易态科技有限公司 | Gas filtering system and yellow phosphorus furnace gas filtering method |
| CN105727676A (en) * | 2016-04-12 | 2016-07-06 | 昆明理工大学 | Method and device for electromagnetic collaborative electrofiltration dust removal |
| CN205965400U (en) * | 2016-08-23 | 2017-02-22 | 河北高科环保集团有限公司 | High -efficient electrostatic fabric filter |
| CN206414911U (en) * | 2016-12-09 | 2017-08-18 | 厦门三维丝环保股份有限公司 | Electrofiltration cylinder complex dust collector |
Non-Patent Citations (1)
| Title |
|---|
| 江晶: "《大气污染治理技术与设备》", 31 March 2018, 冶金工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551045A (en) * | 2021-06-15 | 2021-10-26 | 吕志翼 | Be provided with special heat preservation valve of pitch flue gas |
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