CN112076931B - Track traffic integral wheel coating production line and use method thereof - Google Patents

Track traffic integral wheel coating production line and use method thereof Download PDF

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Publication number
CN112076931B
CN112076931B CN202010975675.3A CN202010975675A CN112076931B CN 112076931 B CN112076931 B CN 112076931B CN 202010975675 A CN202010975675 A CN 202010975675A CN 112076931 B CN112076931 B CN 112076931B
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station
paint
coating
wheel
degreasing
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CN112076931A (en
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吴争
周立强
张磊
杨晓东
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Baowu Group Masteel Rail Transit Materials Technology Co Ltd
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Baowu Group Masteel Rail Transit Materials Technology Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
    • 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
    • B01D53/02—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 by adsorption, e.g. preparative gas chromatography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
    • B05B13/0264—Overhead conveying means, i.e. the object or other work being suspended from the conveying means; Details thereof, e.g. hanging hooks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/002—Pretreatement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/007—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0218—Pretreatment, e.g. heating the substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B05D3/0263—After-treatment with IR heaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • 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
    • B01D2258/0258—Other waste gases from painting equipments or paint drying installations

Abstract

The invention discloses a coating production line for an integral wheel of rail transit, which is characterized in that a feeding station 1, a pre-degreasing station 2 for pre-treating the integral wheel, a degreasing station 3, a hot water cleaning station 4, a normal-temperature water ladle washing station 5, an integral wheel dehydration drying station 6 for rail transit, a paint coating first station 7 for coating paint on the integral wheel, a paint coating second station 8, a leveling station 9 for finishing paint coating of the integral wheel for rail transit, a paint drying station 10 for finishing paint leveling of the integral wheel for rail transit, a strong cooling station 11 and a blanking station 12 for finishing paint drying of the integral wheel for rail transit, and a wastewater treatment station 13 and a sludge filter pressing station 15 are further arranged on the coating production line in sequence. The material loading station 1 is provided with a cantilever crane, and can realize the suspension type material loading of wheel hub holes. The invention also discloses a use method of the rail transit integral wheel coating production line.

Description

Track traffic integral wheel coating production line and use method thereof
Technical Field
The invention belongs to the technical field of coating protection, and particularly relates to a coating production line for an integral wheel of rail transit and a using method of the coating production line.
Background
The integral wheel for rail transit is used as the main structural part that rail vehicle traveles, and because its functioning speed is big, operating condition is abominable, consequently in the integral wheel production process of rail transit, in order to guarantee its corrosion resistance and pleasing to the eye requirement, it is essential process to protect the integral wheel coating paint for rail transit. The existing integral wheel coating for rail transit is mostly flat-lying type coating or manual coating, and has poor coating quality and low efficiency. In the prior art, a production line type batch coating production process for forming a system by coating the integral wheels for rail transit is not available.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the rail transit integral wheel coating production line which is simple in structure and convenient to use, can improve the coating quality of the rail transit integral wheel, meets the requirements of different customers, improves the coating efficiency, saves energy and resources, and has the advantages of good production environment, no pollution to the environment and the like. The invention also provides a use method of the rail transit integral wheel coating production line.
In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a whole wheel coating line of track traffic, set gradually on the coating line material loading station, be used for carrying out preceding pre-treatment's degreasing station, hot water washing station, normal atmospheric temperature water ladle and wash station, dehydration stoving station, be used for whole wheel to carry out the paint coating first station, paint coating second station, levelling station, paint stoving station, forced cooling station and the unloading station of paint spraying, still be equipped with waste water treatment station and mud filter-pressing station on the coating line.
Further, pre-degreasing station, hot water washing station and normal atmospheric temperature water ladle wash the station and all are equipped with spray system, and spray system includes water tank and spray line, and spray system adopts and enables everywhere to spray the unanimous down mode of sending up of pressure, and spray system's nozzle angularly adjustable, and the spray line material adopts corrosion-resistant, temperature-resistant type reinforcing polypropylene material, and spray line pressure is adjustable, and the temperature is controllable in the water tank.
Furthermore, degreasing agents are added into the water tanks of the pre-degreasing station, the degreasing station and the hot water cleaning station, and an antirust agent is added into the water tank of the normal-temperature water ladle cleaning station.
Further, the furnace body of dehydration stoving station and paint stoving station department is thick rock wool storehouse board and assembles the structure, and circulating pipeline in the furnace body adopts the air return mode of sending upward, and dehydration stoving passageway and paint stoving passageway all are equipped with infrared radiation heating device and steam heating device, still are equipped with exhaust emission device in dehydration stoving passageway and the paint stoving passageway, and it is thermal-insulated to go out the equal wind curtain of mouth department at dehydration stoving passageway and paint stoving passageway.
Furthermore, the first paint coating station and the second paint coating station coat the inner side surface and the outer side surface of the wheel respectively, paint spray rooms at the first paint coating station and the second paint coating station are respectively a scroll-type water curtain paint spray room which mainly comprises a water curtain plate, a rolling suction plate, a baffle gas-water separator, a water tank, a return water channel and a purification air supply system, and waste gas exhaust devices are further arranged in the paint spray rooms at the first paint coating station and the second paint coating station.
Furthermore, a leveling chamber is arranged at the leveling station, an active carbon adsorption system is arranged in the leveling chamber, the leveling time of the wheel is 10-15 minutes, and the active carbon adsorption system is 5000m3The exhaust gas discharge devices in the paint spray booths at the first station and the second station for paint coating are all equal to 5000m3The/h air volume active carbon waste gas treatment system is communicated.
Furthermore, the strong cooling station is provided with a strong cooling chamber, and the air volume in the strong cooling chamber is 14000m3The wind pressure is 650 Pa.
Further, the wastewater treatment station is provided with a wastewater treatment system for treating wastewater generated by workshop pretreatment and degreasing at a rate of 1 ton/hour; the sludge filter-pressing station is provided with a filter press for dehydrating paint slag and sludge generated in the water tank of the coating station, and the sludge filter-pressing station is also provided with a sludge pool for storing the sludge generated by the sludge filter-pressing station and a water collecting well for storing wastewater generated in the coating process.
Further, a suspension conveying system is arranged at the feeding station, wheels are fed in a hole suspension mode, an XT160 type die forging open type suspension conveying chain is adopted in the suspension conveying system, a single driving device, a tensioning device and a variable frequency speed regulating device are arranged, automatic spray lubrication is adopted for suspension chain lubrication, and multiple emergency stop buttons are arranged on the whole line.
Based on the rail transit integral wheel coating production line, the invention also relates to a use method of the rail transit integral wheel coating production line, and the use method comprises the following steps:
step 1, placing an integral wheel on a suspension conveying system by using a cantilever crane at a feeding station, conveying the integral wheel to a pre-degreasing station by using the suspension conveying system for spray cleaning, adding 20 plus or minus 5 kilograms of degreasing agents into a cleaning water tank according to the number of the wheels, adjusting the temperature of the cleaning water to be 40-60 ℃, and adjusting the spray pressure to be 0.15-0.18 MPa; after the pre-degreasing is finished, the integral wheel is conveyed to a degreasing station by the hanging conveying system for spray cleaning, the cleaning water temperature and the cleaning pressure are the same as those of the pre-degreasing station, and 10 plus or minus 5 kilograms of degreasing agents are added into a cleaning water tank according to the number of the wheel;
step 2, after degreasing, conveying the integral wheel to a hot water cleaning station by a hanging conveying system for hot water cleaning, then conveying the integral wheel to a normal-temperature water ladle washing station for ladle washing, wherein the ladle washing water temperature is 20 +/-5 ℃, the ladle washing pressure is the same as that of the pre-degreasing station, and 10 +/-5 kg of antirust agent is added into the ladle washing water tank according to the number of the wheel pieces;
step 3, the integral wheel is conveyed to a dehydration drying station by a suspension conveying system for drying, the drying temperature is adjustable within the range of 50-165 ℃, an automatic temperature control system adopts a temperature sensor and a digital display type temperature controller as control elements, and automatic temperature control is realized by controlling the on-off of a steam electromagnetic valve; 5000m of waste gas generated in the drying process passes through the leveling station3The air volume active carbon waste gas treatment system adsorbs and purifies the organic waste gas generated by the wheels;
step 4, conveying the dried integral wheel to a paint coating first station, finishing coating the inner side surface of the wheel at the paint coating first station, and then conveying the wheel to a paint coating second station to finish coating the outer side surface of the wheel; after finishing coating, the suspension conveying system conveys the integral wheel for rail transit to a leveling station, the wheel is leveled for 10-15 minutes at the leveling station, and the station is equipped with 5000m3The air volume active carbon waste gas treatment system adsorbs and purifies organic waste gas generated by a wheel dehydration drying station, a paint coating first station, a paint coating second station, a leveling station and a paint drying station;
step 5, after the wheel leveling is finished, the wheel is suspended and conveyedThe conveying system conveys the integral wheel for rail transit to a paint drying station for drying, the station adopts steam heating and electric infrared radiation auxiliary heating, the station is the same as a dehydration drying station, and waste gas generated in the drying process passes through 5000m arranged at a leveling station3The air volume active carbon waste gas treatment system carries out adsorption and purification; after the wheels are dried, the whole wheels are conveyed to a strong cooling station for cooling, wherein the air volume is 14000m3The air pressure is 650Pa, so that the curing of a paint film is accelerated; the wheel after strong cooling can be subjected to blanking at a blanking station or the processes are repeated to finish the second paint coating.
The technical scheme adopted by the invention has the advantages that:
1. the production line adopts a flow line operation form, the suspension conveying system can be used for perforating and suspending the integral wheel for rail transit, the inner side and the outer side of the integral wheel for rail transit can be coated at one time, the working system is calculated according to 250 days/year and 8 hours/day, 2.5 million integral wheels can be coated in one year, the wheel coating efficiency is more than 5 times of that of the traditional manual coating, and the coating cost is reduced to be less than 50% of that of the manual coating.
2. The spraying system adopts a downward and upward delivery mode, ensures that the spraying pressure at each position is consistent, reduces blockage, and has the advantages that the nozzle of the spraying system can be quickly disassembled and replaced and the angle is adjustable. The spray pipeline is made of corrosion-resistant and temperature-resistant reinforced polypropylene, can completely meet the requirement on mechanical strength, has the outstanding advantages of smooth and clean inside of the pipeline, difficult slag bonding inside the pipeline and the like, and avoids the problem of slag bonding inside the traditional pipeline.
3. The dehydration drying channel and the paint drying channel of the production line are designed in a steam and electric infrared radiation heating mode, the furnace body is of a thick rock wool warehouse plate splicing structure and prevents heat conduction and heat leakage, the inlet and the outlet are insulated by adopting air curtains, the inner circulation pipeline of the furnace adopts an upper air supply and return mode, air pipes are arranged by fully utilizing the heights of hangers and shoulders, the dehydration drying of wheels and the baking and curing of paint to form a film can be quickly realized, the heating space is reduced, the energy consumption is reduced, meanwhile, waste gas discharge devices are arranged in the dehydration drying channel and the paint drying channel, and a waste gas discharge device is arranged in the dehydration drying channel and the paint drying channel in the drying processThe generated exhaust gas passes through 5000m3And the/h air volume active carbon waste gas treatment system is used for adsorption and purification.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic view of a rail transit integral wheel coating production line of the present invention.
The labels in the above figures are respectively: 1-a feeding station; 2-pre-degreasing station; 3-a degreasing station; 4-hot water cleaning station; 5-normal temperature water ladle washing station; 6-a dehydration drying station; 7-a first station for painting; 8-a second station for painting; 9-leveling station; 10-a paint drying station; 11-a forced cooling station; 12-a blanking station; 13-a wastewater treatment station; 14-a suspended conveyance system; 15-sludge press filtration station; 16-a sludge tank; and 17-a water collecting well.
Detailed Description
In the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "planar direction", "circumferential", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, a coating production line for an integral wheel of rail transit is provided with a feeding station 1, a pre-degreasing station 2 for pre-treating the integral wheel, a degreasing station 3, a hot water cleaning station 4, a normal-temperature water ladle washing station 5, an integral wheel dehydration drying station 6 for rail transit, a paint coating first station 7 for coating paint on the integral wheel, a paint coating second station 8, a leveling station 9 for finishing paint coating on the integral wheel for rail transit, a paint drying station 10 for finishing paint leveling on the integral wheel for rail transit, a forced cooling station 11 and a blanking station 12 for finishing paint drying on the integral wheel for rail transit, and a wastewater treatment station 13 and a sludge filter pressing station 15. The material loading station 1 is provided with a cantilever crane, and can realize the suspension type material loading of wheel hub holes.
The pre-degreasing station 2, the degreasing station 3, the hot water cleaning station 4 and the normal-temperature water ladle washing station 5 are respectively provided with a spraying system, each spraying system comprises a water tank and a spraying pipeline, each spraying system adopts a downward upward-feeding mode which enables the spraying pressure to be consistent everywhere, the angle of a nozzle of each spraying system is adjustable, the spraying pipeline is made of corrosion-resistant and temperature-resistant reinforced polypropylene materials, the pressure of each spraying pipeline is adjustable, and the temperature in each water tank is controllable. Degreasing agents are added into the water tanks of the pre-degreasing station 2, the degreasing station 3 and the hot water cleaning station 4, and an antirust agent is added into the water tank of the normal-temperature water ladle cleaning station 5.
The pre-degreasing station 2 is provided with a water tank and a spraying pipeline, the water temperature in the water tank is controllable, the pressure of the spraying pipeline is adjustable, and a degreasing agent can be added to the pre-degreasing station. The degreasing station 3 is provided with a water tank and a spraying pipeline, the water temperature in the water tank is controllable, the pressure of the spraying pipeline is adjustable, and a degreasing agent can be added in the degreasing station. The hot water cleaning station 4 is provided with a water tank and a spray pipeline, the temperature of water in the water tank is controllable, the pressure of the spray pipeline is adjustable, and a degreasing agent can be added to the hot water cleaning station. The normal temperature water ladle washing station 5 is provided with a water tank and a spraying pipeline, normal temperature water is filled in the water tank, the pressure of the spraying pipeline is adjustable, and an antirust agent can be added in the normal temperature water ladle washing station.
Pre-degreasing station 2, degreasing station 3, hot water washing station 4, normal atmospheric temperature water ladle wash station 5 constitute the pretreatment system, and whole pretreatment system main advantage is: the whole pretreatment system is of a closed structure, all cleaning processes are completed in a closed space at one time, an access door and a platform are arranged on the side face of the shed body, and small access ladders are arranged at an access port, so that equipment maintenance personnel can conveniently carry out equipment debugging and maintenance; a transition section and a splash-proof door are arranged between the cleaning chambers, so that liquid fleeing between stations is effectively prevented; thirdly, the whole pretreatment spraying adopts a vertical pipeline pump, a nylon nozzle can be quickly disassembled and assembled, the spraying angle of the nozzle is adjustable, and the wheel cleaning efficiency is greatly improved; fourthly, the whole spraying system adopts a downward and upward delivery mode, so that the pressure of the upper nozzle and the pressure of the lower nozzle are consistent, and the cleaning effect is ensured; fifthly, the whole spray pipeline is made of corrosion-resistant and temperature-resistant polypropylene materials, and has the advantages of smooth and clean pipe inside, difficult blockage, no rusting and the like besides completely meeting the requirement of mechanical strength; sixthly, the cell body that provides the shower water adopts the double-side welded structure, and every groove all sets up dustproof movable cover, convenient operation, and the feed tank adopts main, vice groove structure simultaneously, establishes double-deck SUS304 stainless steel filter screen between main, vice groove to detach the impurity in the tank liquor, reduced the nozzle and blockked up, and establish the heat preservation that 50mm is thick in the heating cell body outside, play heat preservation thermal-insulated, the energy can be saved effect. Seventhly, when the equipment normally runs, the temperature rise time of the whole pretreatment water tank is less than or equal to 45 minutes, and when the equipment is used, the noise of the whole machine is less than or equal to 85dB according to a test method specified by national standards, and the equipment has the advantages of fast temperature rise, small noise pollution and the like. Eighthly, the whole pretreatment system only takes 8-10 minutes from the position where the first wheel enters the pre-degreasing station 2 to the position where the first wheel comes out from the normal-temperature water-ladle washing station 5, and the degreasing efficiency is more than 5 times of that of manual degreasing.
The furnace body of dehydration stoving station 6 and paint stoving station 10 department is thick rock wool storehouse board and assembles the structure, and circulating pipeline in the furnace body adopts the air return mode of sending upward, and dehydration stoving passageway and paint stoving passageway all are equipped with infrared radiation heating device and steam heating device, still are equipped with exhaust emission device in dehydration stoving passageway and the paint stoving passageway, all adopt the air curtain to insulate against heat in the business turn over mouth department of dehydration stoving passageway and paint stoving passageway.
The main advantages of the dehydration drying station are: firstly, a dehydrating and drying channel adopts a thick rock wool warehouse board splicing structure, the heating mode is steam and electric infrared radiation combined heating, air curtains are adopted at an inlet and an outlet for heat insulation, heat conduction and heat leakage are prevented, an upper air return mode is adopted for a furnace internal circulation pipeline, the space of the shoulder part of a workpiece hanger is fully utilized, the effective volume utilization coefficient of a furnace body is improved, the power of a loading machine is reduced, an air pipe at the bottom in the furnace is avoided, the cleaning is convenient, and the energy is saved; and secondly, the drying temperature at the dehydration drying station 6 is adjustable within the range of 50-165 ℃, and the moisture on the surface of the integral wheel for rail transit can be rapidly dried. Thirdly, the main blast pipe adopts uniform feedingThe air design and the blast pipes are all provided with regulating valves, so that the uniformity of a temperature field in the furnace is ensured, and the regulation is convenient. Fourthly, the steam heating system and the circulating fan are all arranged in the heat-insulating chamber body, and the chamber body adopts a plug board structure which is the same as the structure of the furnace body, so that heat leakage loss of an external pipeline, the fan and the like is avoided; fifthly, the automatic temperature control system is adopted in the section, the temperature sensor and the digital display type temperature controller are used as control elements, and the automatic temperature control is realized by controlling the on-off of the steam electromagnetic valve; sixthly, the station is provided with a waste gas discharge device, and waste gas generated in the drying process passes through 5000m arranged at the leveling station 93The/h air volume active carbon waste gas treatment system adsorbs and purifies the organic waste gas generated by the wheels.
The paint coating first station 7 and the paint coating second station 8 coat the inner side surface and the outer side surface of the wheel respectively, paint spray rooms at the paint coating first station 7 and the paint coating second station 8 are respectively a scroll type water curtain paint spray room which mainly comprises a water curtain plate, a rolling suction plate, a baffle gas-water separator, a water tank, a return water channel and a purification air supply system, and waste gas exhaust devices are further arranged in the paint spray rooms at the paint coating first station 7 and the paint coating second station 8. When the device works, most of air containing paint mist is sprayed onto the front water curtain and absorbed by the water curtain, the other very small part of paint mist enters the rolling suction plate at a very high speed under the action of the attractive force of the high-pressure ventilator, the paint mist is further captured by a water film of the rolling suction plate under the action of centrifugal force, the rest paint mist is collided by a baffle steam-water separator to form water drops, the water drops fall into the lower part of a cleaning chamber and flow to the front part of a water tank through a return water channel, paint slag and sludge generated in the water tank are dehydrated through a sludge filter pressing station 15 and then enter a sludge tank 16, finally, the paint slag and the sludge are transported out by a waste residue treatment resource unit for safe treatment, all filter pressing liquid flows back to a water collecting well 17 to avoid secondary waste pollution, and the generated wastewater returns to a wastewater treatment station 13 for treatment. And the exhaust gas exhausting device is arranged in the spray booth at the first paint coating station 7 and the second paint coating station 8, and exhaust gas generated in the spraying process passes through 5000m arranged at the leveling station 93The/h air volume active carbon waste gas treatment system adsorbs and purifies the organic waste gas generated by the wheelsThe operation environment of the spraying personnel is improved. 25000m is also arranged at the first paint coating station 7 and the second paint coating station 83The purifying air supply system mainly comprises an air supply fan, a connecting pipeline, an air adjusting door, a static pressure chamber and a secondary air purifying and filtering system, wherein the purifying air supply amount is slightly larger than the micro-positive pressure control of the air exhaust amount, so that the spraying quality of a workpiece is ensured.
The leveling station 9 is provided with a leveling chamber, an active carbon adsorption system is arranged in the leveling chamber, the leveling time of the wheel is 10-15 minutes, and the active carbon adsorption system is 5000m3The exhaust gas discharging devices at the positions of the dehydration drying station 6 and the paint drying station 10, and the exhaust gas discharging devices in the paint spraying rooms at the positions of the paint coating first station 7 and the paint coating second station 8 are equal to 5000m in volume3The/h air volume active carbon waste gas treatment system is communicated. The 5000m3/h air volume active carbon waste gas treatment system adsorbs and purifies organic waste gas generated by the wheel dehydration drying station 6, the first paint spraying station 7, the second paint spraying station 8, the leveling station 9 and the paint drying station 10.
According to the organic waste gas emission condition of each station, the granular activated carbon adsorption device is preferably used for adsorption and purification, and the adsorption and purification mainly comprises two processes: a. an adsorption process: organic waste gas is firstly subjected to primary filtration and purification through an active fiber primary filter, the waste gas is subjected to suspended particle removal through the primary filter, the gas enters an active carbon box, harmful components are removed after the gas is adsorbed by active carbon in the box, purified gas meeting the emission standard is discharged, and the purified gas is discharged to the outside through a fan; b. the desorption and regeneration process comprises the following steps: the active carbon is used for adsorbing a certain solvent for a period of time to regenerate, during regeneration, 0.07Mpa steam is sprayed into the adsorption box to evaporate various solvents adsorbed in the active carbon, and then the solvents are condensed into liquid through a condenser and enter a separation barrel, organic solvents are separated and recovered, residual liquid enters an aeration barrel, overflow water enters the aeration barrel, compressed air is aerated, the residual liquid enters the adsorption box and is adsorbed by the active carbon, and clean water is discharged into a sewer through the aeration barrel without secondary pollution.
The strong cooling station 11 is provided with a strong cooling chamber with the air volume of 14000m3H, the wind pressure is 650Pa, and the paint is acceleratedAnd (6) curing the film. According to the process requirements, the wheel after strong cooling can be blanked at the blanking station 12 or the above processes are repeated to finish the second paint coating.
The wastewater treatment station 13 is provided with a wastewater treatment system for treating wastewater generated by workshop pretreatment degreasing by 1 ton/hour; the sludge filter-pressing station 15 is provided with a filter press for dehydrating paint slag and sludge generated in a water tank of the coating station, and the sludge filter-pressing station 15 is also provided with a sludge pool 16 for storing the sludge generated by the sludge filter-pressing station and a water collecting well 17 for storing wastewater generated in the coating process.
A suspension conveying system 14 is arranged at a feeding station 1, wheel hubs are fed in a hole suspension mode, an XT160 die forging open type suspension conveying chain is adopted by the suspension conveying system 14, a single driving device, a tensioning device and a variable frequency speed regulating device are arranged, automatic spray lubrication is adopted by the suspension chain lubrication, and a plurality of emergency stop buttons are arranged on the whole line. The stepless speed change of 0.5-1.2m/min can be realized, the coating efficiency of the whole wheel for rail transit is improved, and meanwhile, the safety is very high.
This production line has set up application waste gas, waste water, sludge treatment system, and waste gas, the waste water that the application process produced can reach environmental protection emission standard after handling, and the mud of production can realize concentrating the storage, finally handles by the outward transportation safety of waste residue treatment qualification unit, has advantages such as production environment is good, pollution-free to the environment.
The production line steam heating system carries out automatic temperature control and automatic steam supply by using a temperature controller, the cleaning water temperature of the pre-degreasing station, the cleaning water temperature of the hot water cleaning station, the temperature of the dehydration drying station and the paint drying station are all displayed on an electric control cabinet in a centralized digital mode, and automatic temperature control is achieved by controlling the on-off of a steam electromagnetic valve.
Based on the rail transit integral wheel coating production line, the invention also relates to a use method of the rail transit integral wheel coating production line, and the use method comprises the following steps:
step 1, placing an integral wheel for rail transit on a suspension conveying system 14 by using a cantilever crane at a feeding station 1 to realize feeding of the integral wheel for rail transit, conveying the integral wheel for rail transit to a pre-degreasing station 2 by using the suspension conveying system 14 to perform spray cleaning, adding a degreasing agent into a cleaning water tank by 20 +/-5 kg according to the number of wheels, adjusting the temperature of cleaning water to 40-60 ℃, adjusting the spray pressure to 0.15-0.25 MPa, and quickly emulsifying oil stains on the wheel; after the pre-degreasing is finished, the suspension conveying system 14 conveys the integral wheels for rail transit to the degreasing station 3 for spray cleaning, the cleaning water temperature and the cleaning pressure are the same as those of the pre-degreasing station 2, and the cleaning water tank is added with 10 plus or minus 5 kg of degreasing agents according to the number of the wheels;
step 2, the suspension conveying system 14 conveys the rail transit integral wheel to a hot water cleaning station 4 for hot water cleaning, the temperature and the pressure of cleaning water are the same as those of the pre-degreasing station 2, and the pre-degreasing station 2 and the degreasing station 3 are mainly used for removing residual degreasing agents on the surface of the wheel; after the heat-clearing water washing is finished, the integral wheel for track traffic is conveyed to a normal-temperature water ladle washing station 5 by a hanging conveying system 14 to be subjected to ladle washing, the ladle washing temperature is 20 +/-5 ℃, the ladle washing pressure is the same as that of the pre-degreasing station 2, and 10 +/-5 kg of antirust agent is added into the ladle washing water tank according to the number of the wheel pieces, so that the wheel is prevented from generating rust in hot water washing, ladle washing and dehydration drying stages;
step 3, after the normal-temperature water ladle washing is finished, the suspension conveying system 14 conveys the integral wheels for rail transit to the dehydration drying station 6 for drying, the drying temperature is adjustable within the range of 50-165 ℃, the automatic temperature control system adopts a temperature sensor and a digital display type temperature controller as control elements, and automatic temperature control is realized by controlling the on-off of a steam electromagnetic valve; 5000m of waste gas generated in the drying process passes through the leveling station 93The air volume active carbon waste gas treatment system adsorbs and purifies the organic waste gas generated by the wheels;
and 4, after the wheels are dehydrated and dried, the suspension conveying system 14 conveys the rail transit integral wheels to a paint coating first station 7, the coating of the inner side surfaces of the wheels is completed at the paint coating first station 7, and then the suspension conveying system 14 conveys the rail transit integral wheels to a paint coating second station 8 to complete the coating of the outer side surfaces of the wheels. First paint coatingThe paint spray booth at the station 7 and the paint coating second station 8 is a scroll type water curtain paint spray booth which mainly comprises a water curtain plate, a rolling suction plate, a baffle gas-water separator, a water tank, a return water channel and a purification air supply system, when in work, most of air containing paint mist is sprayed onto a front water curtain and absorbed by the water curtain, the other very small part of paint mist enters the rolling suction plate at a high speed under the action of the gravitation of a high-pressure ventilator, the paint mist is further trapped by a water film of the rolling suction plate under the action of centrifugal force, the rest of the paint mist is collided by the baffle gas-water separator to form water drops which fall into the lower part of a cleaning room and flows to the front part of the water tank through the return water channel, paint slag and sludge generated in the water tank enter a sludge tank 16 after being dehydrated through a sludge press filtration station 15 and finally are transported out by a waste slag treatment resource unit for safe treatment, and all pressure filter liquid flows back to a water collecting well 17 to avoid forming secondary waste pollution, the generated wastewater is returned to the wastewater treatment station 13 for treatment. And the exhaust gas discharging devices are arranged in the paint spraying rooms at the first paint coating station 7 and the second paint coating station 8, and the exhaust gas generated in the spraying process is absorbed and purified by the 5000m3/h air volume active carbon exhaust gas treatment system arranged at the leveling station 9 to the organic exhaust gas generated by the wheels, so that the operation environment of spraying personnel is improved. 25000m is also arranged at the first paint coating station 7 and the second paint coating station 83The purifying air supply system mainly comprises an air supply fan, a connecting pipeline, an air adjusting door, a static pressure chamber and a secondary air purifying and filtering system, wherein the purifying air supply amount is slightly larger than the micro-positive pressure control of the air exhaust amount, so that the spraying quality of a workpiece is ensured;
after the coating of the wheels is finished, the suspension conveying system 14 conveys the integral wheels for rail transit to the leveling station 9, the wheels are leveled for 10-15 minutes at the leveling station 9, and the station is equipped with 5000m3The air volume active carbon waste gas treatment system adsorbs and purifies organic waste gas generated by a wheel dehydration drying station 6, a paint coating first station 7, a paint coating second station 8, a leveling station 9 and a paint drying station 10;
step 5, after the wheel leveling is finished, the suspension conveying system 14 conveys the integral wheel for rail transit to the paint drying station 10Drying is carried out, the station adopts steam heating and electric infrared radiation auxiliary heating, the station is the same as the dehydration drying station 6, and the waste gas generated in the drying process passes through 5000m arranged at the leveling station 93The air volume active carbon waste gas treatment system carries out adsorption and purification; after the wheels are dried, the suspension conveying system 14 conveys the whole wheels for rail transit to a strong cooling station 11 for cooling, and the air volume of the strong cooling station is 14000m3And h, the wind pressure is 650Pa, so that the curing of the paint film is accelerated. According to the process requirements, the wheel after strong cooling can be blanked at the blanking station 12 or the above processes are repeated to finish the second paint coating.
The production line can coat the integral wheel for all rail traffic with the outer diameter dimension of phi 650 plus 1320mm and the single piece weight of 250kg-850kg, and the wheel plate type is straight wheel plate, inclined wheel plate, S type and double S type, and can meet the requirement of coating more than 95% of the integral wheel on the current market.
The production line adopts a flow line operation form, the suspension conveying system can be used for perforating and suspending the integral wheel for rail transit, the inner side and the outer side of the integral wheel for rail transit can be coated at one time, the working system is calculated according to 250 days/year and 8 hours/day, 2.5 million integral wheels can be coated in one year, the wheel coating efficiency is more than 5 times of that of the traditional manual coating, and the coating cost is reduced to be less than 50% of that of the manual coating.
The steam heating system of the production line of the invention uses the temperature controller to automatically control the temperature and automatically supply steam, the cleaning water temperature of the pre-degreasing station, the cleaning water temperature of the degreasing station, the water temperature of the hot water cleaning station, the temperature of the dehydration drying station and the paint drying station are all displayed on the electric control cabinet in a centralized digital way, and the automatic temperature control is realized by controlling the on-off of the steam electromagnetic valve.
The invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various insubstantial modifications of the technical solution of the invention or to apply the concept and technical solution of the invention directly to other occasions without modification.

Claims (9)

1. The utility model provides a whole wheel coating line of track traffic which characterized in that: the coating production line is sequentially provided with a feeding station (1), a pre-degreasing station (2) for pre-treating the whole wheel, a degreasing station (3), a hot water cleaning station (4), a normal-temperature water ladle washing station (5), a dehydration drying station (6), a paint coating first station (7) for paint spraying of the whole wheel, a paint coating second station (8), a leveling station (9), a paint drying station (10), a strong cooling station (11) and a blanking station (12), and is further provided with a wastewater treatment station (13) and a sludge press filtration station (15); the furnace body of dehydration stoving station (6) and paint stoving station (10) department is thick rock wool storehouse board and assembles the structure, and circulating pipeline in the furnace body adopts and goes up the return air mode, and dehydration stoving passageway and paint stoving passageway all are equipped with infrared radiation heating device and steam heating device, still are equipped with exhaust emission device in dehydration stoving passageway and the paint stoving passageway, and the equal wind curtain of entrance department at dehydration stoving passageway and paint stoving passageway insulates against heat.
2. The rail transit integral wheel coating line of claim 1, characterized in that: pre-degreasing station (2), degreasing station (3), hot water washing station (4) and normal atmospheric temperature water ladle wash station (5) and all be equipped with spraying system, spraying system includes water tank and shower, and spraying system adopts and enables everywhere to spray the unanimous mode of sending on down of pressure, and spraying system's nozzle angularly adjustable, and the shower material adopts corrosion-resistant, and temperature-resistant type reinforcing polypropylene material, and the shower pressure is adjustable, and the temperature is controllable in the water tank.
3. The rail transit integral wheel coating line of claim 2, characterized in that: degreasing agents are added into the water tanks of the pre-degreasing station (2), the degreasing station (3) and the hot water cleaning station (4), and antirust agents are added into the water tanks of the normal-temperature water ladle cleaning station (5).
4. The rail transit integral wheel coating line of claim 3, characterized in that: the automobile wheel paint spraying system is characterized in that the inner side face and the outer side face of a wheel are respectively coated by the first paint coating station (7) and the second paint coating station (8), paint spraying rooms at the first paint coating station (7) and the second paint coating station (8) are respectively a scroll-type water curtain paint spraying room, the scroll-type water curtain paint spraying room mainly comprises a water curtain plate, a scroll suction plate, a baffle gas-water separator, a water tank, a return water channel and a purification air supply system, and exhaust gas exhausting devices are further arranged in the paint spraying rooms at the first paint coating station (7) and the second paint coating station (8).
5. The rail transit integral wheel coating line of claim 4, wherein: the leveling station (9) is provided with a leveling chamber, an active carbon adsorption system is arranged in the leveling chamber, the leveling time of the wheel is 10-15 minutes, and the active carbon adsorption system is 5000m3The exhaust gas discharging devices at the dehydration drying station (6) and the paint drying station (10), the exhaust gas discharging devices in the paint spraying chambers at the first paint coating station (7) and the second paint coating station (8) and the exhaust gas discharging devices in the 5000m exhaust gas discharging chambers at the second paint coating station (8) are all the same as those in the exhaust gas discharging system with air volume of/h activated carbon3The/h air volume active carbon waste gas treatment system is communicated.
6. The rail transit integral wheel coating line of claim 5, wherein: the strong cooling station (11) is provided with a strong cooling chamber, and the air volume in the strong cooling chamber is 14000m3The wind pressure is 650 Pa.
7. The rail transit integral wheel coating line of claim 6, wherein: the wastewater treatment station (13) is provided with a wastewater treatment system for treating wastewater generated by workshop pretreatment and degreasing at a rate of 1 ton/hour; the sludge filter-pressing station (15) is provided with a filter press for dehydrating paint slag and sludge generated in a water tank of the coating station, and the sludge filter-pressing station (15) is also provided with a sludge pool (16) for storing the sludge generated by the sludge filter-pressing station and a water collecting well (17) for storing wastewater generated in the coating process.
8. The rail transit integral wheel coating line of claim 1, characterized in that: the automatic spraying type wheel loading device is characterized in that a suspension conveying system (14) is arranged at the loading station (1), wheels are loaded in a hole suspension mode, an XT160 die forging open type suspension conveying chain is adopted in the suspension conveying system (14), a single driving device, a tensioning device and a variable frequency speed regulating device are arranged, automatic spraying lubrication is adopted in the suspension chain lubrication, and a plurality of emergency stop buttons are arranged on the whole line.
9. The use method of the rail transit integral wheel coating production line is characterized by comprising the following steps of: the rail transit integral wheel coating production line based on any one of claims 1 to 8, wherein the use method comprises the following steps:
step 1, placing an integral wheel on a suspension conveying system (14) by using a cantilever crane at a feeding station (1), conveying the integral wheel to a pre-degreasing station (2) by using the suspension conveying system (14) for spray cleaning, adding 20 plus or minus 5 kg of degreasing agent into a cleaning water tank according to the number of the wheels, adjusting the temperature of cleaning water to 40-60 ℃, and adjusting the spray pressure to 0.15MPa-0.25 MPa; after the pre-degreasing is finished, the integral wheel is conveyed to a degreasing station (3) by a hanging conveying system (14) for spray cleaning, the cleaning water temperature and the cleaning pressure are the same as those of the pre-degreasing station (2), and 10 plus or minus 5 kilograms of degreasing agent is added into a cleaning water tank according to the number of the wheel;
step 2, after degreasing, conveying the integral wheel to a hot water cleaning station (4) by a hanging conveying system (14) for hot water cleaning, then conveying the integral wheel to a normal-temperature water ladle washing station (5) for ladle washing, wherein the ladle washing water temperature is 20 +/-5 ℃, the ladle washing pressure is the same as that of the pre-degreasing station (2), and 10 +/-5 kg of antirust agent is added into the ladle washing water tank according to the number of the wheel pieces;
step 3, the integral wheel is conveyed to a dehydration drying station (6) by a suspension conveying system (14) for drying, the drying temperature is adjustable within the range of 50-165 ℃, an automatic temperature control system adopts a temperature sensor and a digital display type temperature controller as control elements, and automatic temperature control is realized by controlling the on-off of a steam electromagnetic valve; 5000m of waste gas generated in the drying process passes through the leveling station (9)3The air volume active carbon waste gas treatment system adsorbs and purifies the organic waste gas generated by the wheels;
step 4, conveying the dried integral wheel to a paint coating first station (7), finishing the coating of the inner side surface of the wheel at the paint coating first station (7), and then conveying the wheel to a paint coating second station (8) to finish the coating of the outer side surface of the wheel; after finishing coating, the suspension conveying system (14) conveys the integral wheel for rail transit to the leveling station (9), the wheel is leveled for 10-15 minutes at the leveling station (9), and the station is equipped with 5000m3The air volume active carbon waste gas treatment system adsorbs and purifies organic waste gas generated by a wheel dehydration drying station (6), a paint coating first station (7), a paint coating second station (8), a leveling station (9) and a paint drying station (10);
step 5, after the wheel leveling is finished, the whole wheel for rail transit is conveyed to a paint drying station (10) by a suspension conveying system (14) for drying, steam heating and electric infrared radiation auxiliary heating are adopted in the station, the station is the same as a dehydration drying station (6), and waste gas generated in the drying process passes through 5000m of the leveling station (9)3The air volume active carbon waste gas treatment system carries out adsorption and purification; after the wheels are dried, the whole wheels are conveyed to a strong cooling station (11) for cooling, wherein the air volume is 14000m3The air pressure is 650Pa, so that the curing of a paint film is accelerated; the wheel after strong cooling can be blanked at a blanking station (12) or the processes are repeated to finish the second paint coating.
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CN108745754A (en) * 2018-08-28 2018-11-06 天津七所高科技有限公司 The UV curing apparatus and technique of automobile aluminum wheel hub
CN111299047A (en) * 2018-12-11 2020-06-19 中山市加和五金有限公司 Spraying production line process and equipment for metal products
CN109550630A (en) * 2018-12-31 2019-04-02 合肥高科科技股份有限公司 A kind of process flow for production of dusting
CN209753232U (en) * 2019-02-12 2019-12-10 南通贝思特机械工程有限公司 Coating assembly line
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