CN210814440U - Copper phosphorus alloy smelting smoke treatment device - Google Patents
Copper phosphorus alloy smelting smoke treatment device Download PDFInfo
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- CN210814440U CN210814440U CN201921045019.2U CN201921045019U CN210814440U CN 210814440 U CN210814440 U CN 210814440U CN 201921045019 U CN201921045019 U CN 201921045019U CN 210814440 U CN210814440 U CN 210814440U
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Abstract
The utility model provides a copper phosphorus alloy smelts smoke and dust processing apparatus, this smoke and dust processing apparatus include conveyor and dust collector, and conveyor includes collection petticoat pipe, defeated tobacco pipe way, heating device I, and dust collector includes absorption tower, circulating pump, addsA heat device II, a cooling device and a demisting device; defeated smoke pipe's one end links to each other with the collection petticoat pipe that is equipped with axial fan, and defeated smoke pipe's the other end is linked together through connecting pipe and absorption tower after passing heating device I, and the end of drawing water of circulating pump is linked together through drinking-water pipe and absorption tower, and the water delivery end of circulating pump is linked together through shower and absorption tower, and heating device II sets up in the inside bottom of absorption tower, and condensing equipment sets up in the top of absorption tower, adopts the utility model discloses the absorptive mode of well circulation constantly improves the concentration of by-product phosphoric acid, realizes that P in the smoke and dust is smelted to the copper2O5The classification and recovery of (1).
Description
Technical Field
The utility model relates to a processing technology field of smoke and dust in the copper phosphorus alloy smelting process, concretely relates to smoke and dust processing apparatus is smelted to copper phosphorus alloy.
Background
The copper-phosphorus alloy as intermediate alloy is one excellent deoxidant and fining agent, and may be used widely in deoxidation, impurity removal and grain refinement of copper alloy and aluminum alloy. The copper phosphorus alloy is covered by charcoal or rice husk during smelting, and a great amount of smoke is generated during smelting, and the smoke component is mainly P2O5And carbon black. P2O5Can generate corrosive phosphoric acid and even highly toxic metaphosphoric acid when meeting water, form acid rain and seriously harm the ecological environment and human health. Carbon black, a light, loose and fine black powder, is a product of incomplete combustion or thermal decomposition of charcoal or rice husk under conditions of insufficient air, and is used worldwideThe health organization lists the list of class 2B carcinogens. The bag type dust collector is usually adopted to collect the copper phosphorus alloy smelting smoke dust in the production, but P2O5The dust removing device is easy to absorb moisture, the bonded carbon black forms a viscous substance which is attached to the inner wall of the smoke conveying pipeline and the filter bag to block the filter bag, the dust removing efficiency is low, and the dust removing device is not beneficial to the recovery and treatment of the solid waste of the smoke.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main objective is to solve above-mentioned problem, the utility model aims at providing a copper phosphorus alloy smelts smoke and dust processing apparatus realizes P in copper phosphorus alloy smelts smoke and dust2O5The classification and recovery of (1).
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: the utility model provides a copper phosphorus alloy smelts smoke and dust processing apparatus which characterized in that: the smoke dust treatment device comprises a conveying device and a dust removal device, wherein the conveying device comprises a smoke collecting hood, a smoke conveying pipeline and a heating device I, and the dust removal device comprises an absorption tower, a circulating pump, a heating device II, a cooling device and a demisting device;
the water pumping end of the circulating pump is communicated with the absorption tower through a water pumping pipe, the water conveying end of the circulating pump is communicated with a spray pipe, the spray pipe is provided with a plurality of water spray nozzles from top to bottom in the vertical direction, each water spray nozzle is connected with a water spray pipe, each water spray pipe is perpendicular to the spray pipe, one end of each water spray pipe, which is far away from the spray pipe, penetrates through the absorption tower and is connected with a spray head, a dividing cover is arranged between every two adjacent spray heads, the dividing cover is conical, the central axis of each dividing cover is overlapped, any spray head is positioned on the central axis, the apex angle of the dividing cover is 60-150 degrees, and the dividing cover is composed of a steel wire mesh with the mesh number of 60-120 meshes;
the heating device II is arranged at the bottom end inside the absorption tower, spraying liquid is arranged in the absorption tower, a sensor used for measuring the temperature of the spraying liquid is arranged on the absorption tower, an acid discharge port is formed in the side wall of the bottom end of the absorption tower, and a control valve is arranged at the acid discharge port.
Further, the cooling device and the defogging device are sequentially arranged from bottom to top on the absorption tower, the cooling device is a tubular cooler, the tubular cooler is communicated with the top end of the absorption tower through an air inlet at the bottom end of the tubular cooler, an air outlet at the top end of the tubular cooler is communicated with the bottom end of the defogging device, a water inlet is formed in the side wall of the bottom end of the tubular cooler, and a water outlet is formed in the side wall of the top end of the tubular cooler.
Furthermore, one end of the smoke conveying pipeline is connected with a smoke collecting hood provided with an axial flow fan, and the other end of the smoke conveying pipeline penetrates through the heating device I and then is communicated with the absorption tower through a connecting pipe.
Furthermore, the heating device I is a tubular resistance furnace, and the heating device II is an electric heating tube.
Furthermore, the connecting pipe is installed in the absorption tower with the slope between the defeated tobacco pipe, the lowest end of connecting pipe with the absorption tower links to each other, the highest end of connecting pipe with defeated tobacco pipe links to each other, the connecting pipe is 30 ~ 60 contained angles with the horizontal direction.
Furthermore, a water replenishing port is arranged at the air outlet of the tube type cooler, and a valve is arranged at the water replenishing port.
Further, the defogging device includes a plurality of sleeve, a plurality of sleeve is established at vertical direction cover in proper order, and each telescopic top all is provided with rather than the integrative roof that sets up of lateral wall, the conical transition from inside to outside of the telescopic bottom of a plurality of.
Further, the sleeve and the top plate thereof are both composed of fiber nets.
The beneficial effects of the invention are mainly shown in the following aspects:
1. the copper phosphorus alloy smelting smoke dust is introduced into the smoke conveying pipeline, so that the smoke dust is prevented from absorbing moisture and condensing in the smoke conveying pipeline, and simultaneously hot water mist and P are ensured2O5The chemical reaction temperature of (2) promotes P under the action of the hot water curtain of the dividing cover2O5High-efficiency separation from carbon black;
2. hot water mist and P sealed by adopting multilayer conical segmentation cover hot water curtain2O5Reaction, increaseThe contact area of the smoke dust and the hot water is increased, the steel wire mesh of the cover is divided under the air inlet pressure to divide the smoke dust infinitely, and the P-shaped smoke dust is realized under the scouring action of the hot water curtain2O5The high-efficiency separation of the carbon black improves the recycling efficiency of the smoke dust, and the recycling efficiency of the smoke dust reaches more than 99 percent;
3. the condensing device consists of a tubular cooler and a demisting device, the demisting efficiency is more than 98%, the water replenishing port is positioned at the top of the tubular cooler, and phosphoric acid condensed in the exhaust pipe is washed in the water replenishing process, so that the recovery efficiency of the phosphoric acid is improved, and meanwhile, the accident that the crystallized phosphoric acid blocks the exhaust pipe is avoided;
4. the concentration of the byproduct phosphoric acid is continuously improved by adopting a circulating absorption mode, and the recycling of the byproduct is facilitated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the construction of the segmentation cap of the present invention;
the labels in the figure are: 1. the device comprises a circulating pump, 2, a spray pipe, 3, a tubular cooler, 301, a water inlet, 302, a water outlet, 303, a water replenishing port, 4, a demisting device, 5, a spray head, 6, a partition cover, 601, a steel wire mesh, 7, a connecting pipe, 8, a sensor, 10, spray liquid, 11, a control valve, 12, an electric heating pipe, 13, an absorption tower, 14, a smoke conveying pipeline, 15, a tubular resistance furnace, 16 and a smoke collecting cover.
Detailed Description
The embodiments of the present invention are described in detail with reference to the accompanying drawings, and the embodiments and specific operations of the embodiments are provided on the premise of the technical solution of the present invention, but the scope of the present invention is not limited to the following embodiments.
Example 1
According to the attached drawings, the copper phosphorus alloy smelting smoke dust treatment device comprises a conveying device and a dust removal device, wherein the conveying device comprises a smoke collecting hood 16, a smoke conveying pipeline 14 and a heating device I, the dust removal device comprises an absorption tower 13, a circulating pump 1, a heating device II, a cooling device and a demisting device 4, the heating device I is a tubular resistance furnace 15, and the heating device II is an electric heating tube 12;
one end of the smoke conveying pipeline 14 is connected with a smoke collecting hood 16 provided with an axial flow fan, the other end of the smoke conveying pipeline 14 penetrates through the heating device I and then is communicated with the absorption tower 13 through a connecting pipe 7, the smoke conveying pipeline 14 is made of corrosion-resistant and high temperature-resistant stainless steel, the connecting pipe 7 is obliquely arranged between the absorption tower 13 and the smoke conveying pipeline 14, the lowest end of the connecting pipe 7 is connected with the absorption tower 13, the highest end of the connecting pipe 7 is connected with the smoke conveying pipeline 14, an included angle of 30-60 degrees is formed between the connecting pipe 7 and the horizontal direction,
the water pumping end of the circulating pump 1 is communicated with the absorption tower 13 through a water pumping pipe, and the pump head of the circulating pump 1, the spray pipe 2, the spray head 5, the control valve 11 and the absorption tower 13 are all made of stainless steel with high temperature resistance, acid and alkali resistance and corrosion resistance; the water delivery end of the circulating pump 1 is communicated with the spray pipe 2, the spray pipe 2 is provided with a plurality of water spray ports from top to bottom in the vertical direction, each water spray port is connected with a water spray pipe, each water spray pipe is perpendicular to the spray pipe 2, one end of each water spray pipe, which is far away from the spray pipe 2, penetrates through the absorption tower 13 and is then connected with a spray head 5, a partition cover 6 is arranged between two adjacent spray heads 5 in the absorption tower 13, the partition cover 6 is conical, the central axis of each partition cover 6 is coincident, any spray head 5 is positioned on the central axis, and the central axes of the absorption tower 13, the spray heads 5, the partition covers 6 and the multilayer demisting devices 4 are coincident; the apex angle of the dividing cover 6 is 60-150 degrees, and the dividing cover 6 is composed of a stainless steel wire mesh 601 with the mesh number of 60-120 meshes;
the heating device II is arranged at the bottom end inside the absorption tower 13, spray liquid 10 is arranged in the absorption tower 13, the spray liquid 10 is distilled water, and the spray liquid 10 can also be an alkali solution: the device comprises an absorption tower 13, a KaOH or NaOH solution or other absorption liquid, wherein a sensor 8 for measuring the temperature of spray liquid 10 is arranged on the absorption tower 13, an acid discharge port is arranged on the side wall of the bottom end of the absorption tower 13, and a control valve 11 is arranged at the acid discharge port;
the utility model discloses a demisting device, including cooling device, shell and tube cooler 3, the cooling device with the demisting device from the bottom up sets gradually the top of absorption tower 13, cooling device is shell and tube cooler 3, shell and tube cooler 3 is linked together through the air inlet of its bottom and the top of absorption tower 13, shell and tube cooler 3 is linked together through the gas outlet on its top and the bottom of demisting device, be provided with water inlet 301 on the lateral wall of shell and tube cooler 3 bottom, be provided with delivery port 302 on the lateral wall on shell and tube cooler 3 top. A water replenishing port 303 is arranged at the air outlet of the tubular cooler 3, a valve is arranged at the water replenishing port 303, the valve of the water replenishing port is closed in the smoke discharging and dust removing process, and condensed phosphoric acid in the tubular cooler is washed during water replenishing to prevent the phosphoric acid from crystallizing and blocking the exhaust pipe; the tubular cooler 3 is vertical, is made of corrosion-resistant stainless steel, has a length-diameter ratio of 1.5-3, is provided with a tail gas pipe pass and a cooling water shell pass, and is a demisting device 4 consisting of a plurality of layers of fiber nets, wherein the demisting device 4 consists of at least three layers of fiber nets, and the bottom of the demisting device is provided with a certain inclination, so that water mist can conveniently flow back to the circulating absorption tower;
a treatment method of a copper phosphorus alloy smelting smoke treatment device comprises the following steps:
1) starting a switch of the heating device II, heating the spray liquid 10 to 80-100 ℃, preserving heat, and controlling the heating temperature through feedback of the sensor 8; starting the circulating pump 1, enabling the thermal spraying liquid 10 to flow out from the spray head 5, radiating along the dividing cover 6 in an umbrella shape, and spraying hot water mist from the spray head 5 positioned at the bottommost end of the absorption tower 13; starting the tubular cooler 3, setting the temperature of cooling water to be 5-10 ℃, and enabling the cooling water to pass through the tubular cooler 3; starting a switch of the heating device I, heating the smoke conveying pipeline 14 to 360-400 ℃, and then preserving heat;
2) an axial flow fan of the fume collecting hood 16 is opened, and the smoke dust generated by smelting the copper-phosphorus alloy is introduced into the smoke conveying pipeline 14 through the fume collecting hood 16;
3) the smoke dust enters an absorption tower 13 through a smoke conveying pipeline 14 and a connecting pipe 7 in sequence, and hot water mist and P in the smoke dust are sealed by a hot water curtain2O5Fully contacting, and generating a chemical reaction to generate phosphoric acid; under the action of the axial flow fan, the pressure of smoke dust under the closed hot water curtain is gradually increased, the steel wire mesh 601 on the surface of the segmentation cover 6 is used for infinitely segmenting the smoke dust, and the smoke is infinitely segmentedUnder the scouring action of the hot water curtain, P2O5 is separated from carbon black in the smoke dust, the generated phosphoric acid is absorbed into the spray liquid 10 and is returned to the absorption tower 13 through the circulating pump 1 to continue circulating spraying, and the carbon black in the smoke dust floats on the surface of the spray liquid 10; the smoke tail gas passes through a tubular cooler 3, phosphoric acid steam is condensed, and the condensed phosphoric acid steam flows back into the spray liquid 10; the cooled smoke tail gas passes through a demisting device 4, fog is gathered to form fog drops, and the fog drops finally flow back to the circulating liquid; when the phosphoric acid in the circulating liquid reaches a certain concentration, opening a control valve 11 with a filter screen at the bottom of an absorption tower 13, separating the phosphoric acid solution from the carbon black, detecting the concentration of the phosphoric acid by using a hydrometer, opening the control valve 11 with the filter screen after the concentration of the phosphoric acid reaches a set concentration value of 50% -70%, separating the carbon black from the phosphoric acid, allowing the phosphoric acid to enter an acid storage tank, and allowing the carbon black to remain at the bottom of the absorption tower 13; digging out carbon black, supplementing the spraying liquid 10 to the whole process through a water supplementing opening 303, heating the supplemented spraying liquid 10 to the temperature set in the step 1), and sequentially circulating to realize absorption and separation of the copper phosphorus alloy smelting smoke dust.
The copper-phosphorus alloy is lead-free and cadmium-free, can replace the traditional silver-based and copper-based series solder containing harmful metals such as lead, cadmium and the like as the solder, is mainly used for soldering copper, copper alloy, silver, molybdenum and other metals, and has huge consumption in the industries such as refrigeration, motors, electric power, automobiles and the like, and the annual consumption reaches tens of thousands of tons; the copper-phosphorus alloy as an electrode material is widely applied to PCB electroplating due to the advantages of high brightness, high leveling and the like. According to incomplete statistics, the global copper-phosphorus alloy yield per year is 25 ten thousand tons, while the domestic copper-phosphorus alloy yield per year is 20 ten thousand tons, which accounts for about 80 percent of the global yield.
Example 2
1) Carrying out water delivery on the absorption tower 13, wherein the height of the water surface is 20cm below the opening of the smoke delivery pipeline 14, the absorption tower 13 is made of corrosion-resistant stainless steel, and the smoke delivery pipeline 14 is made of corrosion-resistant high-temperature-resistant stainless steel; setting the heating temperature of the tubular resistance furnace 15 to be 360-400 ℃, starting a switch of the tubular resistance furnace 15, heating the smoke conveying pipeline 14 to the set temperature, and then preserving heat; setting the heating temperature of the electric heating pipe 12 to be 80-100 ℃, starting a switch of the electric heating pipe 12, heating the spray liquid 10 to the set temperature, and then preserving heat; starting the high-temperature-resistant and acid-and-alkali-resistant circulating pump 1, wherein the spray head 5 at the bottommost end in the absorption tower 13 is an atomizing spray head which is arranged above the spray liquid, the other spray heads 5 are common spray heads, hot water is sprayed by the atomizing spray head, the hot water sprayed by the common spray head 5 flows down along the dividing cover 6 to form a hot water curtain, and the pump head, the spray head 5 and the dividing cover 6 of the high-temperature-resistant and acid-and-alkali-resistant circulating pump 1 are all made of corrosion-resistant stainless steel; the temperature of the cooling water is set to be 5-10 ℃, a circulating cooling water device is started, the circulating cooling water passes through the tube type cooler 3 by the shell pass, and the tube type cooler is made of corrosion-resistant stainless steel.
2) The high temperature axial flow fan of the fume collecting hood 16 is opened, the smoke generated by smelting the copper phosphorus alloy is introduced into the smoke conveying pipeline 14 through the fume collecting hood 16, and the fume collecting hood is made of corrosion-resistant and high temperature resistant stainless steel.
3) The smoke conveying pipeline 14 is connected with the absorption tower 13, the smoke enters the absorption tower 13 through the smoke conveying pipeline 14, and the hot water mist and the P in the smoke are sealed by the hot water curtain2O5Fully contacting, and generating a chemical reaction to generate phosphoric acid; under the action of the high-temperature axial flow fan, the pressure of the smoke dust sealed by the hot water curtain is gradually increased, the stainless steel wire mesh on the surface of the segmentation cover 6 infinitely segments the smoke dust, and the infinitely segmented smoke dust is P under the scouring action of the hot water curtain2O5The generated phosphoric acid is absorbed into the spraying liquid and is returned to the absorption tower 13 through the circulating pump 1 to continue circulating spraying, and the carbon black in the smoke floats on the surface of the spraying liquid; the cooled smoke tail gas passes through the multilayer demisting device 4, the fog is gathered, and fog drops are formed and finally flow back to the circulating liquid. In the smoke and dust absorption process, opening a control valve 11 with a filter screen for sampling at intervals, detecting the concentration of phosphoric acid in the circulating liquid by using a hydrometer, opening the control valve 11 with the filter screen at the bottom of the circulating absorption reaction tower when the concentration of the phosphoric acid in the circulating liquid reaches 50% -70%, separating the phosphoric acid from carbon black, allowing the phosphoric acid to enter an acid storage tank, and allowing the carbon black to remain at the bottom of the circulating absorption reaction tower. Digging out the carbon black, supplementing water to the whole technological process by a matched water supplementing device, heating the supplemented water to a set temperature, and circulating in sequence to realize absorption and separation of the copper-phosphorus alloy smelting smoke dust.
Practice ofIn the examples only the method of the invention is listed for P2O5And recycling the utilization efficiency data. In the smelting process of the copper-phosphorus alloy, the burning loss of phosphorus has two modes: generating P2O5Smoke and oxide slag of copper and phosphorus. The phosphorus content in the slag and the solder cast ingot is subtracted from the phosphorus content put in before smelting to obtain the actual phosphorus content in the smoke dust, the recovered phosphorus content can be obtained by detecting the concentration of the phosphoric acid obtained by the method of the invention, and the phosphorus content are converted into P2O5Can calculate P2O5And (4) recycling efficiency. The alloy grade selects BCu93P with the largest use amount on the market, the weight of each furnace is 300kg, the phosphorus amount fed into each furnace before smelting is 23.5kg, and the phosphorus component content in the alloy ingot and the molten slag in each furnace is the average value of 5 detection results. The effect of the process according to the invention will be further explained below with reference to the following examples.
Example 3
The heating temperature of the smoke conveying pipeline 14 is 380 ℃, the temperature of the circulating spray liquid is 80 ℃, the temperature of the cooling water is 10 ℃, the mesh number of the steel wire mesh of the dividing cover is 100 meshes, 3 hot water curtains are adopted, namely the number of the dividing covers 6 is 3, the number of the fiber mesh layers of the multilayer demisting device is 4, the total phosphorus amount is 1175kg in a copper-phosphorus alloy smelting 50 furnace. After the copper phosphorus alloy smelting flue gas passes through the circulating absorption reaction tower in the method of the utility model, 506.7kg of phosphoric acid with 68 percent concentration and 68.5kg of carbon black with 64 percent of water content are obtained. And (3) drying the carbon black to obtain 25.2kg of carbon black with the water content of about 2 percent, wherein 3000kg of copper phosphorus alloy can be smelted as a covering agent for smelting the next copper phosphorus alloy. The obtained phosphoric acid is heated to 80 ℃ in an acid washing tank and can be used for acid washing of 5000kg of extruded copper-phosphorus alloy. Through chemical analysis test, the phosphorus content in the brazing filler metal ingot casting is 1052.5kg, and the phosphorus content in the slag is 13kg, and the phosphorus content in the theoretical analysis smoke and dust should be 109.5kg, the utility model discloses the phosphorus content of method recycle is 108.9kg, and recycle rate reaches 99.5%.
Example 4
The heating temperature of the smoke conveying pipeline 14 is 370 ℃, the temperature of the circulating spray liquid is 85 ℃, the temperature of the cooling water is 10 ℃, the mesh number of the steel wire mesh of the dividing cover is 100 meshes, 3 hot water curtains are adopted, namely the number of the dividing covers 6 is 3, the number of the fiber mesh layers of the multilayer demisting device is 4, the copper-phosphorus alloy is smelted in a 50-furnace, and the total phosphorus adding amount is 1175 kg. After the copper phosphorus alloy smelting flue gas passes through the circulating absorption reaction tower in the method of the utility model, 528.2kg of phosphoric acid with 62 percent of concentration and 71.3kg of carbon black with 64 percent of water content are obtained. And (3) drying the carbon black to obtain 26.2kg of carbon black with the water content of about 2 percent, wherein 3000kg of copper phosphorus alloy can be smelted as a covering agent for smelting the next copper phosphorus alloy. The obtained phosphoric acid is heated to 80 ℃ in an acid washing tank and can be used for acid washing of 5000kg of extruded copper-phosphorus alloy. Through chemical analysis test, the phosphorus content in the brazing filler metal ingot casting is 1056.7kg, the phosphorus content in the slag is 14.2kg, the phosphorus content in the theoretical analysis smoke dust should be 104.1kg, the utility model discloses the phosphorus content of method recycle is 103.6kg, and recycle rate reaches 99.5%.
Example 5
The heating temperature of the smoke conveying pipeline 14 is 380 ℃, the temperature of the circulating spray liquid is 90 ℃, the temperature of the cooling water is 5 ℃, the mesh number of the steel wire mesh of the dividing cover is 120 meshes, 3 hot water curtains are adopted, namely the number of the dividing covers 6 is 3, the number of the fiber mesh layers of the multilayer demisting device is 4, the copper-phosphorus alloy is smelted in a 50-furnace, and the total phosphorus adding amount is 1175 kg. After the copper phosphorus alloy smelting smoke passes through the circulating absorption reaction tower in the method of the utility model, 58 percent of phosphoric acid 557.6kg and 67 percent of carbon black 76.4kg are obtained. And (3) drying the carbon black to obtain 25.7kg of carbon black with the water content of about 2 percent, wherein 3000kg of copper phosphorus alloy can be smelted as a covering agent for smelting the next copper phosphorus alloy. The obtained phosphoric acid is heated to 80 ℃ in an acid washing tank and can be used for acid washing of 5000kg of extruded copper-phosphorus alloy. Through chemical analysis test, the phosphorus content in the brazing filler metal ingot casting is 1059.4kg, the phosphorus content in the slag is 12.7kg, the phosphorus content in the theoretical analysis smoke dust should be 102.9kg, the utility model discloses the phosphorus content of method recycle is 102.3kg, and recycle rate reaches 99.4%.
Example 6
The heating temperature of the smoke conveying pipeline 14 is 380 ℃, the temperature of the circulating spray liquid is 95 ℃, the temperature of the cooling water is 5 ℃, the mesh number of the steel wire meshes of the dividing cover is 80 meshes, 3 hot water curtains are adopted, namely the number of the dividing covers 6 is 3, the number of the fiber mesh layers of the multilayer demisting device is 3, the total phosphorus amount is 1175kg in a copper-phosphorus alloy smelting 50 furnace. After the copper phosphorus alloy smelting flue gas passes through the circulating absorption reaction tower in the method of the utility model, 523.5kg of phosphoric acid with 59 percent of concentration and 79.7kg of carbon black with 69 percent of water content are obtained. And (3) drying the carbon black to obtain 25.2kg of carbon black with the water content of about 2 percent, wherein 3000kg of copper phosphorus alloy can be smelted as a covering agent for smelting the next copper phosphorus alloy. The obtained phosphoric acid is heated to 80 ℃ in an acid washing tank and can be used for acid washing of 5000kg of extruded copper-phosphorus alloy. Through chemical analysis test, the phosphorus content in the brazing filler metal ingot casting is 1067.3kg, and the phosphorus content in the slag is 9.8kg, and the phosphorus content in the theoretical analysis smoke and dust should be 97.9kg, the utility model discloses the phosphorus content of method recycle is 97.7kg, and recycle rate reaches 99.8%.
Example 7
The heating temperature of the smoke conveying pipeline 14 is 380 ℃, the temperature of the circulating spray liquid is 95 ℃, the temperature of the cooling water is 5 ℃, the mesh number of the steel wire meshes of the dividing cover is 80 meshes, 3 hot water curtains are adopted, namely the number of the dividing covers 6 is 3, the number of the fiber mesh layers of the multilayer demisting device is 3, the total phosphorus amount is 1175kg in a copper-phosphorus alloy smelting 50 furnace. After the copper phosphorus alloy smelting smoke passes through the circulating absorption reaction tower in the method of the utility model, phosphoric acid 557.5kg with 63% concentration and carbon black 81.3kg with 64% moisture content are obtained. And (3) drying the carbon black to obtain 29.9kg of carbon black with the water content of about 2 percent, wherein 3000kg of copper phosphorus alloy can be smelted as a covering agent for smelting the next copper phosphorus alloy. The obtained phosphoric acid is heated to 80 ℃ in an acid washing tank and can be used for acid washing of 5000kg of extruded copper-phosphorus alloy. Through chemical analysis test, the phosphorus content in the brazing filler metal ingot casting is 1051.4kg, the phosphorus content in the slag is 12.1kg, the phosphorus content in the theoretical analysis smoke dust should be 111.5kg, the utility model discloses the phosphorus content of method recycle is 111.1kg, and recycle rate reaches 99.6%.
It is further noted that relational terms such as i, ii, and iii may be 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. Also, 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (8)
1. The utility model provides a copper phosphorus alloy smelts smoke and dust processing apparatus which characterized in that: the smoke dust treatment device comprises a conveying device and a dust removal device, wherein the conveying device comprises a smoke collecting hood (16), a smoke conveying pipeline (14) and a heating device I, and the dust removal device comprises an absorption tower (13), a circulating pump (1), a heating device II, a cooling device and a demisting device (4);
the water pumping end of the circulating pump (1) is communicated with the absorption tower (13) through a water pumping pipe, the water delivery end of the circulating pump (1) is communicated with the spray pipe (2), the spray pipe (2) is provided with a plurality of water spray nozzles from top to bottom in the vertical direction, each water spray nozzle is connected with a water spray pipe, each water spray pipe is perpendicular to the spray pipe (2), one end of each water spray pipe, far away from the spray pipe (2), penetrates through the absorption tower (13) and is connected with a spray head (5), a partition cover (6) is arranged between every two adjacent spray heads (5), the dividing covers (6) are conical, the central axes of the dividing covers (6) are overlapped, any spray head (5) is positioned on the central axis, the apex angle of the dividing cover (6) is 60-150 degrees, and the dividing cover (6) is composed of a steel wire mesh (601) with the mesh number of 60-120 meshes;
heating device II sets up the inside bottom in absorption tower (13), be provided with in absorption tower (13) and spray liquid (10), be provided with on absorption tower (13) and be used for measuring sensor (8) that spray liquid (10) temperature, be provided with on the lateral wall of absorption tower (13) bottom and arrange sour mouthful, it is provided with control valve (11) to arrange sour mouthful department.
2. The copper phosphorus alloy smelting smoke treatment device according to claim 1, characterized in that: cooling device with defogging device from the bottom up sets gradually the top of absorption tower (13), cooling device is shell and tube cooler (3), shell and tube cooler (3) are linked together through the air inlet of its bottom and the top of absorption tower (13), the gas outlet on shell and tube cooler (3) top is linked together with the bottom of defogging device, be provided with water inlet (301) on the lateral wall of shell and tube cooler (3) bottom, be provided with delivery port (302) on the lateral wall on shell and tube cooler (3) top.
3. The copper phosphorus alloy smelting smoke treatment device according to claim 1, characterized in that: one end of the smoke conveying pipeline (14) is connected with a smoke collecting hood (16) provided with an axial flow fan, and the other end of the smoke conveying pipeline (14) penetrates through the heating device I and then is communicated with the absorption tower (13) through a connecting pipe (7).
4. The copper phosphorus alloy smelting smoke treatment device according to claim 1, characterized in that: the heating device I is a tubular resistance furnace (15), and the heating device II is an electric heating pipe (12).
5. The copper phosphorus alloy smelting smoke treatment device according to claim 3, characterized in that: connecting pipe (7) slope install absorption tower (13) with defeated between tobacco pipe way (14), the lowest end of connecting pipe (7) with absorption tower (13) link to each other, the highest end of connecting pipe (7) with defeated tobacco pipe way (14) link to each other, connecting pipe (7) are 30 ~ 60 contained angles with the horizontal direction.
6. The copper phosphorus alloy smelting smoke treatment device according to claim 2, characterized in that: and a water replenishing port (303) is arranged at the air outlet of the tubular cooler (3), and a valve is arranged at the water replenishing port (303).
7. The copper phosphorus alloy smelting smoke treatment device according to claim 1, characterized in that: defogging device includes a plurality of sleeve, a plurality of sleeve is established at vertical direction cover in proper order, and each telescopic top all is provided with rather than the integrative roof that sets up of lateral wall, the conical transition from inside to outside of the telescopic bottom of a plurality of.
8. The copper phosphorus alloy smelting smoke treatment device according to claim 7, characterized in that: the sleeve and the top plate thereof are both composed of fiber nets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921045019.2U CN210814440U (en) | 2019-07-05 | 2019-07-05 | Copper phosphorus alloy smelting smoke treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921045019.2U CN210814440U (en) | 2019-07-05 | 2019-07-05 | Copper phosphorus alloy smelting smoke treatment device |
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| Publication Number | Publication Date |
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| CN210814440U true CN210814440U (en) | 2020-06-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110180294A (en) * | 2019-07-05 | 2019-08-30 | 郑州机械研究所有限公司 | A kind of copper-phosphorus alloy melting dust treatment method and device thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180294A (en) * | 2019-07-05 | 2019-08-30 | 郑州机械研究所有限公司 | A kind of copper-phosphorus alloy melting dust treatment method and device thereof |
| CN110180294B (en) * | 2019-07-05 | 2023-07-28 | 郑州机械研究所有限公司 | Copper-phosphorus alloy smelting smoke dust treatment method and device |
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