CN110180295B - Smoke purification method and device thereof - Google Patents
Smoke purification method and device thereof Download PDFInfo
- Publication number
- CN110180295B CN110180295B CN201910606426.4A CN201910606426A CN110180295B CN 110180295 B CN110180295 B CN 110180295B CN 201910606426 A CN201910606426 A CN 201910606426A CN 110180295 B CN110180295 B CN 110180295B
- Authority
- CN
- China
- Prior art keywords
- electric heating
- absorption tower
- cover
- heat conducting
- heating tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- 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
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/18—Phosphoric acid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/55—Compounds of silicon, phosphorus, germanium or arsenic
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a smoke dust purifying method and a device thereof, wherein the smoke dust purifying device comprises a dust removing device and a heating device, the dust removing device comprises an absorption tower, a circulating pump, a gas-liquid separation device and a demisting device, a spraying mechanism, an evaporating mechanism and an electric heating pipe I are arranged in the absorption tower, the spraying mechanism comprises a plurality of partition covers I and partition covers II, the evaporating mechanism comprises a plurality of heat-conducting plates and a plurality of rows of heating components, the heating components comprise the electric heating pipe II, the electric heating pipe III and the electric heating pipe IV, the heating device comprises a return pipe and a tubular heat exchanger, an axial flow fan is arranged at the air inlet end of the tubular heat exchanger, the air outlet end of the tubular heat exchanger is communicated with the absorption tower, one end of the return pipe is communicated with a feed inlet at the top end of the tubular heat exchanger, and the other end of the return pipe is communicated with a feed inlet of the partition cover II at the bottom end.
Description
Technical Field
The invention relates to the technical field of smoke purification in a copper-phosphorus alloy smelting process, in particular to a smoke purification method and a device thereof.
Background
A great amount of smoke dust is generated in the smelting process of the copper-phosphorus alloy, and the smoke dust mainly comprises P 2 O 5 。P 2 O 5 Can generate corrosive phosphoric acid, even highly toxic metaphosphoric acid when meeting water, and forms acid rain, which seriously damages the ecological environment and human health. In the production, a bag type dust collector is generally adopted to collect the copper-phosphorus alloy smelting smoke dust, but P 2 O 5 The dust-removing agent is easy to absorb moisture, and adheres to carbon black to form sticky substances, and the sticky substances adhere to the inner wall of the smoke conveying pipeline and the filter bag to block the filter bag, so that the dust-removing efficiency is low and the dust-removing agent is not beneficial to the recovery treatment of dust and solid waste. At normal temperature, P 2 O 5 The solubility in water is very low, and the effect of treating copper-phosphorus alloy smelting smoke dust by water dust removal equipment commonly used in the casting industry is not ideal.
Disclosure of Invention
The invention mainly aims to solve the problems, and the invention aims to provide a smoke dust purifying method and a smoke dust purifying device, which adopt a circulating absorption mode to continuously improve the concentration of byproduct phosphoric acid, thereby being beneficial to recycling the byproduct phosphoric acid.
The invention adopts the technical scheme for solving the technical problems that: the energy-saving smoke purification device comprises a dust removal device and a heating device, wherein the dust removal device comprises an absorption tower, a circulating pump, a gas-liquid separation device and a demisting device, the input end of the circulating pump is communicated with the absorption tower through a connecting pipe I, and the output end of the circulating pump is communicated with a spray header arranged in the absorption tower through a spray pipe; a spraying mechanism, an evaporating mechanism and an electric heating pipe I are arranged in the absorption tower, and the spraying mechanism, the evaporating mechanism and the electric heating pipe I are sequentially arranged from top to bottom;
the spraying mechanism is arranged below the spraying head and comprises a plurality of division covers I, the division covers I are arranged at intervals from top to bottom, each division cover I is symmetrically arranged below the division cover I and is conical, the division cover II is inverted conical, a feed opening is formed in the bottom of the division cover II, and the division covers I and the division cover II are composed of 80-200-mesh steel wire meshes.
Further, the gas-liquid separation device and the demisting device are sequentially arranged above the absorption tower from bottom to top, the gas-liquid separation device is a gas-liquid separator, the gas-liquid separator is a corrugated plate gas-liquid separator with a corrugated plate arrangement direction being in a vertical direction, and a water supplementing port is arranged at the top end of the gas-liquid separator.
Further, the demister is a demister, and the demister is a wire mesh demister.
Further, the electric heating pipe I is arranged at the bottom in the absorption tower, spraying liquid is arranged in the absorption tower, a sensor for measuring the temperature of the spraying liquid is arranged on the absorption tower, an acid discharge port is arranged on the side wall of the bottom end of the absorption tower, and a control valve I is arranged at the acid discharge port.
Further, the vertex angle of the division cover I is 60-150 degrees, and the base angle of the division cover II is 60-150 degrees.
Further, the central axis of the spray head, the central axis of the reflux spray head, the central axis of the partition cover I, the central axis of the partition cover II and the central axis of the heat conducting plate are all coincident with the central axis of the absorption tower.
Further, the heating element includes electric heating pipe II, electric heating pipe III and electric heating pipe IV, electric heating pipe II electric heating pipe III reaches electric heating pipe IV sets gradually in the horizontal direction, electric heating pipe II with electric heating pipe IV sets up about the central axis symmetry of absorption tower, on the inner wall of absorption tower is installed to electric heating pipe II's one end, electric heating pipe II's the other end passes each heat-conducting plate in proper order from bottom to top and links to each other with connector I, on the inner wall of absorption tower is installed to electric heating pipe IV's one end, electric heating pipe IV's the other end passes each heat-conducting plate in proper order from bottom to top and links to each other with connector II, connector I with connector II all is located the top of evaporation mechanism topmost heat-conducting plate, electric heating pipe III's one end links to each other with connector I, electric heating pipe III's the other end links to each other with connector II.
Further, the evaporation mechanism comprises a plurality of heat conducting plates and a plurality of rows of heating components, the heat conducting plates are round, the heat conducting plates are sequentially arranged from top to bottom, the area of the heat conducting plates is sequentially increased from top to bottom, the central axis of each heat conducting plate is coincident, and the heat conducting plates are arranged on the heat conducting plates in parallel.
Further, heating device includes back flow and shell and tube heat exchanger, shell and tube heat exchanger's inlet end is provided with axial fan, shell and tube heat exchanger's the end of giving vent to anger with the absorption tower is linked together, the one end of back flow is linked together with the feed inlet that sets up on shell and tube heat exchanger top, the other end of back flow passes behind the absorption tower with spray mechanism bottom cut apart the feed opening of cover II and be linked together, shell and tube heat exchanger's discharge gate is linked together with the backward flow shower nozzle that sets up in the absorption tower through connecting pipe II, and this backward flow shower nozzle sets up in evaporation mechanism's top.
A smoke purification method of an energy-saving smoke purification device, comprising the following steps:
1) Starting a switch of the electric heating pipe I, heating the spray liquid to 80-100 ℃, preserving heat, and controlling the heating temperature through feedback of a sensor; starting an electric heating pipe II, an electric heating pipe III and an electric heating pipe IV, and heating the heat conducting plate to a hot state; starting a circulating pump, enabling hot water to flow out of a spray header, radiating in an umbrella shape along a division cover I, then flowing into a division cover II arranged below the division cover I, enabling spray liquid to flow out of a feed opening of the division cover II along the inner wall of the division cover II, enabling the spray liquid flowing out of the division cover II to radiate in an umbrella shape along the division cover I arranged below the division cover II, repeating the steps, and finally, enabling the spray liquid to flow into a return pipe from a feed opening of a partition cover II at the bottommost end of the spray mechanism, and enabling the return pipe to enter the shell-and-tube heat exchanger, wherein when the spray liquid in the shell side of the shell-and-tube heat exchanger is full, the spray liquid flows out from a return nozzle and falls on a hot multilayer heat conducting plate to form a large amount of water vapor;
2) An axial flow fan at the air inlet end of the tube array heat exchanger is opened, copper-phosphorus alloy smelting smoke enters the tube array heat exchanger through a tube pass, is heated to 360-400 ℃ and then is output, enters an absorption tower, a hot spray liquid and a partition cover I form a hot water curtain, and water vapor in the spray liquid and P in the smoke dust under the sealing of the hot water curtain 2 O 5 Fully contacting, and generating chemical reaction to generate phosphoric acid; under the action of an axial flow fan, the pressure of smoke dust under the sealing of a hot water curtain gradually rises, the steel wire mesh on the surfaces of the partition cover I and the partition cover II infinitely partitions the smoke dust, and the infinitely partitioned smoke dust is P in the smoke dust under the flushing action of the hot water curtain 2 O 5 Fully reacting with water, absorbing the generated phosphoric acid into spray liquid, and returning to a spray device through a circulating pump to continue circulating spraying; the smoke tail gas passes through a gas-liquid separator, and phosphoric acid drops flow back into the spray liquid under the action of gravity; then the smoke tail gas passes through a silk screen demister, mist is condensed, and mist drops are formed and finally flow back to the spray liquid; when the phosphoric acid in the spray liquid reaches a certain concentration, opening a control valve I at the bottom of the absorption tower, and collecting phosphoric acid generated by the reaction; and (3) opening a control valve II of a water supplementing port to supplement water for the absorption tower, directly flushing the corrugated plate, and then heating the supplemented water to the temperature set in the step (1), so as to realize the absorption of copper-phosphorus alloy smelting smoke dust in a circulating way.
The beneficial effects of the invention are mainly represented in the following aspects:
1. absorption of P in smoke by steam and hot water 2 O 5 The generated hot phosphoric acid flows through the tube-in-tube heat exchanger to heat smoke dust, thereby realizing P 2 O 5 The waste heat generated by the reaction with water is recycled, so that energy sources are saved;
2. circulating water flows onto the multi-layer gradient heat-conducting plate heated by the dry-heating electric heating pipe, and the hot multi-layer gradient heat-conducting plate ensures the full evaporation of water;
3. under the sealing effect that a plurality of layers of forward and reverse crossed partition covers form a hot water curtain, water vapor and P 2 O 5 The reaction is carried out, the smoke dust is infinitely partitioned by the partition cover under the action of the air inlet pressure, the contact area of the smoke dust and water is large, and the reaction efficiency is high;
4. the demister consisting of the corrugated plate gas-liquid separator and the silk screen demister is beneficial to condensation reflux of phosphoric acid steam and water mist;
5. the concentration of the byproduct phosphoric acid is continuously improved by adopting a circulating absorption mode, so that the recycling of the byproduct is facilitated.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the division cover I of the present invention;
FIG. 3 is a schematic view of the structure of the partition cover II of the present invention;
the marks in the figure: 1. the circulating pump, 101, connecting pipe I, 2, shower, 3, gas-liquid separation device, 4, defogging device, 5, shower head, 6, split cover I, 601, split cover II, 7, reflux nozzle, 8, heat conducting plate, 9, sensor, 10, electric heating pipe I, 11, control valve I, 12, spray liquid, 13, electric heating pipe II, 1301, electric heating pipe IV, 1302, electric heating pipe III, 14, tubular heat exchanger, 15, back flow pipe, 16, absorption tower, 17, control valve II, 18, axial fan.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the embodiments and specific operation procedures of the present invention are given on the premise of the technical solution of the present invention, but the scope of protection of the present invention is not limited to the following embodiments.
Example 1
According to the attached drawings, the energy-saving smoke purification device comprises a dust removal device and a heating device, wherein the dust removal device comprises an absorption tower 16, a circulating pump 1, a gas-liquid separation device 3 and a demisting device 4, the input end of the circulating pump 1 is communicated with the absorption tower 16 through a connecting pipe I101, the output end of the circulating pump 1 is communicated with a spray header 5 arranged in the absorption tower 16 through a spray pipe 2, and the pump header spray pipe 2, the spray header 5, a reflux spray head 7, a control valve I11 and the absorption tower 13 of the circulating pump 1 are all made of high-temperature resistant, acid-alkali resistant and corrosion resistant stainless steel, and the gas-liquid separation device 3 and the demisting device 4 are sequentially arranged above the absorption tower 16 from bottom to top; the gas-liquid separator 3 is a gas-liquid separator, the gas-liquid separator is a corrugated plate gas-liquid separator with corrugated plates arranged in the vertical direction, the corrugated plates are streamline corrugated plates, and phosphoric acid liquid drops collide against the corrugated plate surfaces and flow back into the spray liquid under the action of gravity;
the top end of the gas-liquid separator is provided with a water supplementing port, a control valve II 17 is arranged at the water supplementing port, the demister 4 is a wire mesh demister, the wire mesh is made of stainless steel, the wire mesh is in a mesh braiding structure, the section of the metal wire is flat, mist is condensed when the mist contacts the metal wire mesh, and water drops are formed to finally flow back into circulating liquid;
the device is characterized in that a spraying mechanism, an evaporating mechanism and an electric heating pipe I10 are arranged in the absorption tower 16, the spraying mechanism, the evaporating mechanism and the electric heating pipe I10 are sequentially arranged from top to bottom, the electric heating pipe I10 is arranged at the bottom in the absorption tower 16, spraying liquid 12 is arranged in the absorption tower 16, a sensor 9 for measuring the temperature of the spraying liquid 12 is arranged on the absorption tower 16, an acid discharge port is arranged on the side wall of the bottom end of the absorption tower 16, and a control valve I11 is arranged at the acid discharge port;
the spraying mechanism is arranged below the spraying head 5 and comprises a plurality of division covers I6, the division covers I6 are arranged at intervals from top to bottom, a division cover II 601 is symmetrically arranged below each division cover I6, the division cover I6 is conical, the division cover II 601 is in an inverted conical shape, a feed opening is arranged at the bottom of the division cover II 601, and the division covers I6 and the division cover II 601 are both composed of stainless steel wire meshes with the mesh number of 80-200 meshes; the apex angle of the segmentation cover I6 is 60-150 degrees, and the base angle of the segmentation cover II 601 is 60-150 degrees;
the evaporation mechanism comprises a plurality of heat conducting plates 8 and a plurality of rows of heating components, the heat conducting plates 8 are cylindrical, the heat conducting plates 8 are sequentially arranged from top to bottom, the areas of the heat conducting plates 8 are sequentially increased from top to bottom, the central axes of each heat conducting plate 8 are overlapped, the heating components of the plurality of rows are mutually parallel and arranged on the heat conducting plates 8, the heating components comprise electric heating pipes II 13, electric heating pipes III 1302 and electric heating pipes IV 1301, the surface materials of the heat conducting plates 8 and the heating components are high-temperature resistant and acid-resistant stainless steel, the electric heating pipes II 13, the electric heating pipes III 1302 and the electric heating pipes IV 1301 are sequentially arranged in the horizontal direction, the electric heating pipes II 13, the electric heating pipes 1302 and the electric heating pipes IV 1301 are dry heating type electric heating pipes, the electric heating pipe II 13, the electric heating pipe III 1302 and the electric heating pipe IV 1301 can be integrally arranged, the electric heating pipe II 13 and the electric heating pipe IV 1301 are symmetrically arranged about the central axis of the absorption tower 16, one end of the electric heating pipe II 13 is arranged on the inner wall of the absorption tower 16, the other end of the electric heating pipe II 13 sequentially penetrates through each heat conducting plate 8 from bottom to top and then is connected with the connector I, one end of the electric heating pipe IV 1301 is arranged on the inner wall of the absorption tower 16, the other end of the electric heating pipe IV 1301 sequentially penetrates through each heat conducting plate 8 from bottom to top and then is connected with the connector II, the connector I and the connector II are both positioned above the heat conducting plate 8 at the topmost end of the evaporation mechanism, one end of the electric heating pipe III is connected with the connector I, and the other end of the electric heating pipe III 1302 penetrates through a plurality of heat conducting plates and then is connected with the connector II;
the heating device comprises a return pipe 15 and a tubular heat exchanger 14, an axial flow fan 18 is arranged at the air inlet end of the tubular heat exchanger 14, a horn-shaped air inlet is selected at the air inlet end, the air outlet end of the tubular heat exchanger 14 is communicated with the absorption tower 16, one end of the return pipe 15 is communicated with a feed inlet arranged at the top end of the tubular heat exchanger 14, the other end of the return pipe 15 passes through the absorption tower 16 and is communicated with a feed outlet of a partition cover II 601 at the bottommost end of the spraying mechanism, the discharge outlet of the tubular heat exchanger 14 is communicated with a return nozzle 7 arranged in the absorption tower 16 through a connecting pipe II, and the return nozzle 7 is arranged above the evaporation mechanism;
the central axis of the spray header 5, the central axis of the reflux spray head 7, the central axis of the partition cover I6, the central axis of the partition cover II 601, the central axis of the heat conducting plate 8, the central axis of the gas-liquid separation device and the central axis of the demister are all coincident with the central axis of the absorption tower 16, and the electric heating pipe III 1302 is V-shaped or wave-shaped.
The application method of the energy-saving smoke purification device comprises the following steps:
1) Starting a switch of the electric heating pipe I10, heating the spray liquid 12 to 80-100 ℃, preserving heat, and controlling the heating temperature through feedback of the sensor 9; starting an electric heating pipe II 13, an electric heating pipe III 1302 and an electric heating pipe IV 1301, and heating the heat conducting plate 8 to a hot state; starting the circulating pump 1, enabling hot water to flow out of the spray header 5, radiating in an umbrella shape along the partition cover I6, then flowing into the partition cover II 601 arranged below the partition cover I6, enabling spray liquid 12 to flow out of a feed opening of the partition cover II 601 along the inner wall of the partition cover II 601, enabling the spray liquid 12 flowing out of the partition cover II 601 to radiate in an umbrella shape along the partition cover I6 arranged below the partition cover II 601, repeating the steps, finally enabling the spray liquid 12 to flow into the return pipe 15 from the feed opening of the partition cover II 601 at the bottommost end of the spray mechanism, enabling the spray liquid 12 to enter the shell side of the shell side heat exchanger 14 from the return pipe 15, enabling the spray liquid 12 to flow out of the return nozzle 7 when the spray liquid 12 in the shell side of the shell side heat exchanger 14 is full, and enabling the spray liquid 12 to fall on the hot multilayer heat conducting plate 8 to form a large amount of water vapor;
2) An axial flow fan 18 at the air inlet end of the tube type heat exchanger 14 is opened, copper-phosphorus alloy smelting smoke passes through the tube side and enters the tube type heat exchanger 14, is heated to 360-400 ℃ and then is output, enters the absorption tower 16, the hot spray liquid 12 and the partition cover I6 form a hot water curtain, and water vapor in the spray liquid 12 and P in the smoke under the sealing of the hot water curtain 2 O 5 Fully contacting, and generating chemical reaction to generate phosphoric acid; under the action of the axial flow fan 18, the pressure of smoke dust under the sealing of the hot water curtain gradually rises, the steel wire mesh on the surfaces of the partition cover I6 and the partition cover II 601 infinitely partitions the smoke dust, and the infinitely partitioned smoke dust is positioned on the hot water curtainUnder the scouring action of (2) P in smoke dust 2 O 5 Fully reacting with water, absorbing the generated phosphoric acid into spray liquid 12, and returning to a spray device through a circulating pump 1 to continue circulating spraying; the smoke tail gas passes through a gas-liquid separator, and phosphoric acid drops flow back into the spray liquid 12 under the action of gravity; then the smoke tail gas passes through a silk screen demister, mist is condensed, and mist drops are formed and finally flow back to the spray liquid 12; when the concentration of phosphoric acid in the spray liquid 12 reaches a certain concentration, detecting the concentration of the phosphoric acid by adopting a densitometer, and when the concentration reaches 50% -70% of a set concentration value, opening a control valve I11 at the bottom of the absorption tower 16, and collecting phosphoric acid generated by the reaction; and (3) opening a control valve II 17 of the water supplementing port to supplement water to the absorption tower 16, wherein the valve of the water supplementing port is closed in the smoke and dust removing process, and flushing condensed phosphoric acid in the corrugated plate during water supplementing to prevent phosphoric acid from crystallizing and blocking the corrugated plate, and then heating the supplemented water to the temperature set in the step (1) to sequentially and circularly realize the absorption of copper-phosphorus alloy smelting smoke dust.
In the smelting process of copper-phosphorus alloy, the burning loss of phosphorus has two modes: generating P 2 O 5 Soot and copper, phosphorus oxide slag. The actual phosphorus content in smoke dust is obtained by subtracting the phosphorus content in slag and solder cast ingot from the phosphorus content input before smelting, the recovered phosphorus content can be obtained by detecting the phosphoric acid concentration obtained by the method of the invention, and the two are converted into P 2 O 5 P can be calculated 2 O 5 And (5) recycling efficiency. The alloy grade selects BCu93P with the largest dosage in the market, the weight of each furnace is 300kg, the phosphorus amount of each furnace is 23.5kg before smelting, and the average value of the detection results of 5 times is taken for the component content of phosphorus in each furnace alloy cast ingot and slag. The effect of the method of the present invention will be further illustrated with reference to examples.
Example 2
The temperature of the circulating spray liquid is 80 ℃, the mesh number of steel wires of the division cover I6 and the division cover II 601 is 100 meshes, the copper-phosphorus alloy smelting furnace is 50, and the total phosphorus feeding amount is 1175kg. After the copper-phosphorus alloy smelting flue gas passes through an absorption tower in the method, 507.7kg of 68% concentration phosphoric acid is obtained. The obtained phosphoric acid is heated to 80 ℃ in a pickling tank and can be used for pickling 5000kg of extruded copper-phosphorus alloy. Through chemical analysis test, the phosphorus content in the brazing alloy cast ingot is 1052.5kg, the phosphorus content in slag is 13kg, the phosphorus content in theoretical analysis smoke dust is 109.5kg, and the phosphorus content recycled by the method is 109.2kg, and the recycling rate reaches 99.7%.
Example 3
The temperature of the circulating spray liquid is 85 ℃, the mesh number of steel wires of the division cover I6 and the division cover II 601 is 100 meshes, the copper-phosphorus alloy smelting furnace is 50, and the total phosphorus feeding amount is 1175kg. After the copper-phosphorus alloy smelting flue gas passes through an absorption tower in the method, 529.3kg of 62% phosphoric acid is obtained. The obtained phosphoric acid is heated to 80 ℃ in a pickling tank and can be used for pickling 5000kg of extruded copper-phosphorus alloy. Through chemical analysis test, the phosphorus content in the brazing alloy cast ingot is 1056.7kg, the phosphorus content in slag is 14.2kg, the phosphorus content in theoretical analysis smoke dust is 104.1kg, and the phosphorus content recycled by the method is 103.8kg, and the recycling rate reaches 99.7%.
Example 4
The temperature of the circulating spray liquid is 90 ℃, the mesh number of steel wires of the division cover I6 and the division cover II 601 is 120 meshes, the copper-phosphorus alloy smelting furnace is 50, and the total amount of phosphorus is 1175kg. After the copper-phosphorus alloy smelting flue gas passes through an absorption tower in the method, 565.8kg of 58% phosphoric acid is obtained. The obtained phosphoric acid is heated to 80 ℃ in a pickling tank and can be used for pickling 5000kg of extruded copper-phosphorus alloy. Through chemical analysis test, the phosphorus content in the brazing filler metal cast ingot is 1059.4kg, the phosphorus content in slag is 11.3kg, the phosphorus content in theoretical analysis smoke dust is 104.3kg, and the phosphorus content recycled by the method is 103.8kg, and the recycling rate reaches 99.5%.
Example 5
The temperature of the circulating spray liquid is 95 ℃, the mesh number of steel wires of the division cover I6 and the division cover II 601 is 80 meshes, the copper-phosphorus alloy smelting furnace is 50, and the total phosphorus feeding amount is 1175kg. After the copper-phosphorus alloy smelting flue gas passes through an absorption tower in the method, 523.0kg of phosphoric acid with the concentration of 59% is obtained. The obtained phosphoric acid is heated to 80 ℃ in a pickling tank and can be used for pickling 5000kg of extruded copper-phosphorus alloy. Through chemical analysis test, the phosphorus content in the brazing alloy cast ingot is 1067.3kg, the phosphorus content in slag is 9.9kg, the phosphorus content in theoretical analysis smoke dust is 97.8kg, and the phosphorus content recycled by the method is 97.6kg, and the recycling rate reaches 99.8%.
Example 6
The temperature of the circulating spray liquid is 95 ℃, the mesh number of steel wires of the division cover I6 and the division cover II 601 is 80 meshes, the copper-phosphorus alloy smelting furnace is 50, and the total phosphorus feeding amount is 1175kg. After the copper-phosphorus alloy smelting flue gas passes through an absorption tower in the method, 557.0kg of phosphoric acid with the concentration of 63% is obtained. The obtained phosphoric acid is heated to 80 ℃ in a pickling tank and can be used for pickling 5000kg of extruded copper-phosphorus alloy. Through chemical analysis test, the phosphorus content in the brazing filler metal cast ingot is 1051.4kg, the phosphorus content in slag is 12.3kg, the phosphorus content in theoretical analysis smoke dust is 111.3kg, the phosphorus content recycled by the method is 111.0kg, and the recycling rate reaches 99.7%.
It should also be noted that relational terms such as I, II, and III are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (8)
1. A smoke purification device, characterized in that: the dust removing device comprises a dust removing device and a heating device, wherein the dust removing device comprises an absorption tower (16), a circulating pump (1), a gas-liquid separation device (3) and a demisting device (4), the input end of the circulating pump (1) is communicated with the absorption tower (16) through a connecting pipe I (101), and the output end of the circulating pump (1) is communicated with a spray header (5) arranged in the absorption tower (16) through a spray pipe (2); the absorption tower (16) is internally provided with a spraying mechanism, an evaporation mechanism and an electric heating pipe I (10), wherein the spraying mechanism, the evaporation mechanism and the electric heating pipe I (10) are sequentially arranged from top to bottom, the evaporation mechanism comprises a plurality of heat conducting plates (8) and a plurality of rows of heating components, the heat conducting plates (8) are round, the heat conducting plates (8) are sequentially arranged from top to bottom, the areas of the heat conducting plates (8) are sequentially increased from top to bottom, the central axes of each heat conducting plate (8) are overlapped, and the heating components of the rows are mutually parallel and arranged on the heat conducting plates (8);
the utility model discloses a shower mechanism, including shower head (5), shower mechanism sets up in the below of shower head (5), shower mechanism includes that a plurality of cuts apart cover I (6), and a plurality of cuts apart cover I (6) from the top down interval sets up, every the below that cuts apart cover I (6) all symmetry is provided with one and cuts apart cover II (601), cut apart cover I (6) and be conical, cut apart cover II (601) and be the conical of handstand, the bottom that cuts apart cover II (601) is provided with the feed opening, cut apart cover I (6) and cut apart cover II (601) and constitute by 80~200 mesh wire gauze.
2. A smoke cleaning apparatus according to claim 1, wherein: the gas-liquid separation device (3) and the demisting device (4) are sequentially arranged above the absorption tower (16) from bottom to top, the gas-liquid separation device (3) is a gas-liquid separator, the gas-liquid separator is a corrugated plate gas-liquid separator with corrugated plate arrangement direction being in the vertical direction, a water supplementing port is formed in the top end of the gas-liquid separator, and a control valve II (17) is arranged at the water supplementing port.
3. A smoke cleaning apparatus according to claim 1, wherein: the demister (4) is a demister, and the demister is a wire mesh demister.
4. A smoke cleaning apparatus according to claim 1, wherein: the electric heating pipe I (10) is arranged at the bottom in the absorption tower (16), spraying liquid (12) is arranged in the absorption tower (16), a sensor (9) for measuring the temperature of the spraying liquid (12) is arranged on the absorption tower (16), an acid discharge port is arranged on the side wall of the bottom end of the absorption tower (16), and a control valve I (11) is arranged at the acid discharge port.
5. A smoke cleaning apparatus according to claim 1, wherein: the apex angle of the division cover I (6) is 60-150 degrees, and the base angle of the division cover II (601) is 60-150 degrees.
6. A smoke cleaning apparatus according to claim 1, wherein: the heating element comprises an electric heating tube II (13), an electric heating tube III (1302) and an electric heating tube IV (1301), wherein the electric heating tube II (13), the electric heating tube III (1302) and the electric heating tube IV (1301) are sequentially arranged in the horizontal direction, the electric heating tube II (13) and the electric heating tube IV (1301) are symmetrically arranged relative to the central axis of the absorption tower (16), one end of the electric heating tube II (13) is arranged on the inner wall of the absorption tower (16), the other end of the electric heating tube II (13) sequentially penetrates through each heat conducting plate (8) from bottom to top and then is connected with the connector I, one end of the electric heating tube IV (1301) is arranged on the inner wall of the absorption tower (16), the other end of the electric heating tube IV (1301) sequentially penetrates through each heat conducting plate (8) from bottom to top and then is connected with the connector II, the connector I and the connector II are both positioned above the top heat conducting plate (8) of the evaporation mechanism, and one end of the electric heating tube III (1302) is connected with the connector I.
7. A smoke cleaning apparatus according to claim 1, wherein: the heating device comprises a return pipe (15) and a tubular heat exchanger (14), an axial flow fan (18) is arranged at the air inlet end of the tubular heat exchanger (14), the air outlet end of the tubular heat exchanger (14) is communicated with an absorption tower (16), one end of the return pipe (15) is communicated with a feed inlet arranged at the top end of the tubular heat exchanger (14), the other end of the return pipe (15) passes through the absorption tower (16) and then is communicated with a feed opening of a partition cover II (601) at the bottommost end of a spraying mechanism, and the discharge opening of the tubular heat exchanger (14) is communicated with a reflux nozzle (7) arranged in the absorption tower (16) through a connecting pipe II, and the reflux nozzle (7) is arranged above the evaporation mechanism.
8. A smoke cleaning apparatus according to claim 7, wherein: the central axis of the spray header (5), the central axis of the reflux spray head (7), the central axis of the partition cover I (6), the central axis of the partition cover II (601) and the central axis of the heat conducting plate (8) are all overlapped with the central axis of the absorption tower (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910606426.4A CN110180295B (en) | 2019-07-05 | 2019-07-05 | Smoke purification method and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910606426.4A CN110180295B (en) | 2019-07-05 | 2019-07-05 | Smoke purification method and device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110180295A CN110180295A (en) | 2019-08-30 |
| CN110180295B true CN110180295B (en) | 2023-06-27 |
Family
ID=67725235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910606426.4A Active CN110180295B (en) | 2019-07-05 | 2019-07-05 | Smoke purification method and device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110180295B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114669180A (en) * | 2022-03-02 | 2022-06-28 | 南京大学环境规划设计研究院集团股份公司 | Device for absorbing VOCs |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101224367A (en) * | 2007-10-26 | 2008-07-23 | 东南大学 | Method of removing PM2.5 and gaseous pollutant using steam phase transition and device thereof |
| CN101601964A (en) * | 2009-06-03 | 2009-12-16 | 李鹏举 | A kind of high-efficiency ammonia flue gas desulfurization technique and device |
| CN101912709A (en) * | 2010-08-06 | 2010-12-15 | 瓮福（集团）有限责任公司 | Method for removing dust from tail gas of ammonium phosphate production by waste steam |
| CN203922784U (en) * | 2014-03-03 | 2014-11-05 | 山东成林高新技术产业有限公司 | The two-way refining plant of the mixed bath of oilfield sewage and boiler smoke |
| CN104211031A (en) * | 2013-06-04 | 2014-12-17 | 四川玖长科技有限公司 | Equipment and process for recovery of fluorine from flue gas of hydration absorption of phosphorus in kiln-method phosphoric acid technology |
| CN107321100A (en) * | 2017-08-17 | 2017-11-07 | 仲伟军 | Smoke eliminator |
| WO2018026260A1 (en) * | 2016-08-05 | 2018-02-08 | Cheng Chew Kong | System and method for recovering sodium hypochlorite from exhaust chlorine gas |
| CN207840349U (en) * | 2018-01-31 | 2018-09-11 | 郑州机械研究所有限公司 | The supporting mechanism of pricker device is soaked based on spiral state solder cake |
| CN210814441U (en) * | 2019-07-05 | 2020-06-23 | 郑州机械研究所有限公司 | Energy-saving smoke and dust purifier |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9834734B2 (en) * | 2014-05-23 | 2017-12-05 | Taminco Bvba | Acid gas removal process by absorbent solution comprising amine compounds |
-
2019
- 2019-07-05 CN CN201910606426.4A patent/CN110180295B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101224367A (en) * | 2007-10-26 | 2008-07-23 | 东南大学 | Method of removing PM2.5 and gaseous pollutant using steam phase transition and device thereof |
| CN101601964A (en) * | 2009-06-03 | 2009-12-16 | 李鹏举 | A kind of high-efficiency ammonia flue gas desulfurization technique and device |
| CN101912709A (en) * | 2010-08-06 | 2010-12-15 | 瓮福（集团）有限责任公司 | Method for removing dust from tail gas of ammonium phosphate production by waste steam |
| CN104211031A (en) * | 2013-06-04 | 2014-12-17 | 四川玖长科技有限公司 | Equipment and process for recovery of fluorine from flue gas of hydration absorption of phosphorus in kiln-method phosphoric acid technology |
| CN203922784U (en) * | 2014-03-03 | 2014-11-05 | 山东成林高新技术产业有限公司 | The two-way refining plant of the mixed bath of oilfield sewage and boiler smoke |
| WO2018026260A1 (en) * | 2016-08-05 | 2018-02-08 | Cheng Chew Kong | System and method for recovering sodium hypochlorite from exhaust chlorine gas |
| CN107321100A (en) * | 2017-08-17 | 2017-11-07 | 仲伟军 | Smoke eliminator |
| CN207840349U (en) * | 2018-01-31 | 2018-09-11 | 郑州机械研究所有限公司 | The supporting mechanism of pricker device is soaked based on spiral state solder cake |
| CN210814441U (en) * | 2019-07-05 | 2020-06-23 | 郑州机械研究所有限公司 | Energy-saving smoke and dust purifier |
Non-Patent Citations (1)
| Title |
|---|
| 带托盘喷淋塔的辅助除尘性能研究;梁晏萱;成丹;;重庆电力高等专科学校学报;21(第01期);51-55 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110180295A (en) | 2019-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10016722B2 (en) | Thermal power plant exhaust purification device | |
| CN107198923A (en) | A kind of purification process technique of coke wet quenching steam | |
| CN206621945U (en) | A kind of aluminum melting furnace smoke wet electric dust-removing cleaning system | |
| CN110180295B (en) | Smoke purification method and device thereof | |
| CN202303895U (en) | Finned-pipe type condensation heat exchanger for condensing-type gas water heater | |
| CN210814441U (en) | Energy-saving smoke and dust purifier | |
| CN109173561A (en) | A kind of funnel-cap type flue gas disappears White Tower | |
| CN110180294B (en) | Copper-phosphorus alloy smelting smoke dust treatment method and device | |
| CN208413844U (en) | The purifying plant of high yield super clean, high purified hydrofluoric acid | |
| CN201855641U (en) | Device for treating tail gas containing hydrogen chloride | |
| CN107083244A (en) | A kind of purifying processing device of coke wet quenching steam | |
| CN210814440U (en) | Copper phosphorus alloy smelting smoke treatment device | |
| CN205505046U (en) | Thermal power residual heat from flue gas system | |
| CN105444228A (en) | A water-recovering oil-removing heat-recovering system for cooking fumes | |
| CN205424884U (en) | Residual heat from flue gas of firepower factory device | |
| CN209237634U (en) | A kind of funnel-cap type flue gas disappears White Tower | |
| CN202869322U (en) | Chimney with heat energy recovery device | |
| CN213238494U (en) | Vertical exhaust-heat boiler equipment of anode furnace | |
| CN215984145U (en) | Desalting heat exchanger | |
| CN205481077U (en) | Flue gas waste heat recovery system | |
| CN212253712U (en) | Heating furnace flue gas dehydration and heat recovery system | |
| CN216790898U (en) | Cooling settling tank for collecting zinc oxide | |
| CN205537177U (en) | Be applied to anhydrous hydrogen production's of fluoridizing condenser | |
| CN214415610U (en) | Concentrated steam processing system of cobalt chloride solution | |
| CN203907648U (en) | Spraying drainage type exhaust gas heat exchange device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |