CN110270462B - Coating system for manufacturing crane auxiliary arm by section steel - Google Patents
Coating system for manufacturing crane auxiliary arm by section steel Download PDFInfo
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- CN110270462B CN110270462B CN201910704829.2A CN201910704829A CN110270462B CN 110270462 B CN110270462 B CN 110270462B CN 201910704829 A CN201910704829 A CN 201910704829A CN 110270462 B CN110270462 B CN 110270462B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 239000011248 coating agent Substances 0.000 title claims abstract description 20
- 238000000576 coating method Methods 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 19
- 239000010959 steel Substances 0.000 title claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 93
- 238000005507 spraying Methods 0.000 claims abstract description 80
- 238000001816 cooling Methods 0.000 claims abstract description 58
- 238000010438 heat treatment Methods 0.000 claims abstract description 43
- 238000005485 electric heating Methods 0.000 claims abstract description 27
- 238000005406 washing Methods 0.000 claims description 50
- 239000007921 spray Substances 0.000 claims description 38
- 238000001035 drying Methods 0.000 claims description 37
- 238000011084 recovery Methods 0.000 claims description 27
- 238000005238 degreasing Methods 0.000 claims description 21
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 7
- 239000010865 sewage Substances 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 5
- 238000005243 fluidization Methods 0.000 claims description 4
- 230000008901 benefit Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 18
- 238000007711 solidification Methods 0.000 abstract description 8
- 230000008023 solidification Effects 0.000 abstract description 8
- 230000007547 defect Effects 0.000 abstract description 4
- 230000000630 rising effect Effects 0.000 abstract description 4
- 230000000295 complement effect Effects 0.000 abstract description 3
- 239000002737 fuel gas Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 14
- 230000006872 improvement Effects 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 239000003085 diluting agent Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000007590 electrostatic spraying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000001282 organosilanes Chemical class 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
- B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
- B05B14/48—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths specially adapted for particulate material
-
- 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
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/40—Construction elements specially adapted therefor, e.g. floors, walls or ceilings
-
- 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
-
- 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
- B05D3/04—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 exposure to gases
- B05D3/0406—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 exposure to gases the gas being air
- B05D3/0426—Cooling with air
-
- 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
- B05D3/10—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 other chemical means
- B05D3/102—Pretreatment of metallic substrates
-
- 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
- B05D3/12—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 mechanical means
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Spray Control Apparatus (AREA)
- Coating Apparatus (AREA)
Abstract
The invention provides a coating system for manufacturing a crane auxiliary arm by profile steel, which comprises a pretreatment unit, a powder spraying unit and a curing unit, wherein the curing unit comprises a curing chamber for curing spraying and a second forced cooling chamber for cooling after curing, the curing chamber comprises a first chamber and a second chamber, the second chamber is arranged at the front end of the first chamber, a curing platform is arranged in the second chamber, a fuel gas heating device is arranged in the curing platform, and parallel electric heating devices are arranged at two sides above the curing platform. The gas heating device is complementary with the electric heating device, the gas heating device effectively improves heat flow, solves the problems of poor heat fluidity and uneven heating of the electric heating device, and simultaneously effectively overcomes the defects of low temperature rising speed and insufficient temperature of the gas heating device, effectively improves heating efficiency and heating uniformity of the auxiliary arm, facilitates powder solidification, effectively reduces crack generation and improves production efficiency.
Description
Technical Field
The invention relates to the technical field of powder coating, in particular to a coating system for manufacturing a crane auxiliary arm by using section steel.
Background
The auxiliary arm of the crane is provided with a section of angle-adjustable auxiliary arm which is additionally arranged on the head part of the main auxiliary arm in order to increase the operation range (height and amplitude) of the crane, and the auxiliary arm is provided with a folding auxiliary arm and a telescopic auxiliary arm according to different working modes. When not in use, the auxiliary arm is folded, retracted or dismantled, the application is wide, but the auxiliary arm is particularly common in outdoor use, so the auxiliary arm surface spraying is particularly important, the service life of the auxiliary arm is conveniently protected, and rust is prevented. With the progress and development of technology, however, there are higher requirements on the dosage and quality of the auxiliary arm, and at the same time, the requirements on the production equipment are also higher and higher.
Patent number CN 108339695A discloses a novel energy-saving and environment-friendly coating line for spinning machines, comprising: the device comprises a feeding part, a pretreatment working section, a draining working section, a drying and solidifying working section, a forced air cooling working section, a powder spraying working section, a dust removing working section, a powder spraying solidifying working section and a feeding part; the coating production line system adopts an automatic detection and control technology, reduces the labor intensity of workers, improves the working efficiency, and is safe and accurate. The coating production line system has the characteristics that: the compatibility is good, the parallel production of various different-shaped workpieces can be realized, and the flexibility and the automation degree of the system are high; the silane is substituted for phosphorization, so that the pretreatment process is simple, the flow is short, the use is convenient, the control is convenient, the energy is saved, the consumption is reduced, the economy and the environmental protection are realized, and the like. The pretreatment process time and the water blowing time are controlled according to the complexity of the workpiece, so that the water consumption, the electricity consumption and the compressed air consumption are effectively saved.
But the coating line is uneven in curing and heating, long in heating time and low in efficiency, and the cured product is easy to crack, so that the processing quality of a workpiece is affected.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a coating system for manufacturing the crane auxiliary arm by using the profile steel with high heating efficiency, good curing effect and high production efficiency.
The technical scheme of the invention is as follows: the coating system for manufacturing the auxiliary arm of the crane by using the profile steel comprises a pretreatment unit, a powder spraying unit and a curing unit, wherein the pretreatment unit, the powder spraying unit and the curing unit are arranged on a track, the auxiliary arm is conveyed through the track to finish spraying through the pretreatment unit, the powder spraying unit and the curing unit, and the pretreatment unit is used for degreasing, dedusting and static removing of the auxiliary arm; the powder spraying unit is used for spraying the auxiliary arm, and the curing unit is used for curing the powder after spraying; the solidifying unit comprises a solidifying chamber for solidifying spraying and a second forced cooling chamber for cooling after solidifying, wherein the solidifying chamber comprises a first chamber and a second chamber, the second chamber is arranged at the front end of the first chamber, a solidifying platform is arranged in the second chamber, a gas heating device is arranged in the solidifying platform, and electric heating devices are arranged on two sides above the solidifying platform.
Further, the second indoor wall is equipped with the mounting bracket relatively, is equipped with parallelly connected electric heating device relatively on the mounting bracket, and electric heating device sets up along track direction of movement multirow, and single row electric heating device quantity is 2-15.
Further, the mounting frame extends to the first chamber, the electric heating device of extension end is used for preheating the auxiliary arm, the track is arranged in the curing chamber, the track between the first chamber and the second chamber is obliquely upwards arranged, and the electric heating device is provided with a reflecting cover.
Further, the air intake is equipped with to the second forced cooling room below, and the air intake is equipped with the baffle, is equipped with a plurality of rotatory nozzle on the baffle, and rotatory nozzle includes shower nozzle and ball-type base, and rotatory shower nozzle lower extreme is spherically and inlays and establish in ball-type base, is equipped with a plurality of through-holes on the baffle, through-hole installation ball-type base.
Further, the baffle includes relative motion's first baffle and second baffle, and first baffle and second baffle coupling or hinge connection are equipped with the air outlet on the forced cooling room, and the top is equipped with the fan.
Further, the pretreatment unit comprises a degreasing chamber, a washing chamber and a rust removing chamber, wherein the degreasing chamber, the washing chamber and the rust removing chamber are integrally or combined, a pedestrian passageway is arranged in each chamber, a movable bus passageway is arranged at the top of each chamber, the lower end of each movable bus passageway is arranged at the sewage outlet, the sewage outlet is connected with a recovery tank, spray pipes are arranged in each chamber, a plurality of spray nozzles are arranged on the spray pipes, and a buffer bracket is arranged on each spray pipe; the washing chamber is connected with the water quality purifier and comprises a first washing chamber, a second washing chamber and a third washing chamber, the first washing chamber is arranged between the degreasing chamber and the second washing chamber, the front end of the second washing chamber is connected with the rust removing chamber, the third washing chamber is arranged at the front end of the rust removing chamber, and the front end of the third washing chamber is provided with the manual cleaning machine; the pretreatment unit also comprises an upper part area and a lower part area.
Further, the powder spraying unit comprises a drying chamber, a first forced cooling chamber and a powder spraying chamber, wherein the drying chamber adopts gas hot air for drying, and an air curtain is arranged at an inlet and an outlet of the drying chamber; the top of the first forced cooling chamber is provided with a first forced cooling chamber circulating fan, the bottom of the first forced cooling chamber is provided with a first forced cooling chamber air inlet, the bottom and the side face are provided with a plurality of adjusting blowing nozzles, and the top of the forced cooling chamber is provided with a first forced cooling chamber air outlet.
Further, the powder spraying chamber bottom is equipped with the exhaust port, and the exhaust port is connected with powder recovery unit, and the exhaust port is equipped with the rotor plate, and the rotor plate is the arc of platform for the top, and the powder spraying chamber both sides are equipped with the powder gun, and the powder spraying chamber front end is equipped with grating detection device, and the indoor four corners of powder spraying is the fillet, and the powder spraying chamber front end still is equipped with the benefit spray gun.
Further, the powder recovery device includes, first whirlwind recoverer and second whirlwind recoverer, and first whirlwind recoverer lower extreme is equipped with the export, and the export is connected with the shale shaker of powder fluidizer through pipeline, and the export of powder fluidizer is connected with the spray gun, and first whirlwind recoverer's air outlet and second whirlwind recoverer air intake connection, second whirlwind recoverer lower extreme are equipped with the powder collecting box, and the air outlet is equipped with the air exhauster.
Further, the track includes support, guide rail, removal always car and balanced roof beam, and the guide rail is established on the support, is equipped with the chain through driving motor drive in the guide rail, and the chain drives and removes always car forward movement, removes always car below and is equipped with balanced roof beam, and balanced roof beam includes little crossbeam and big crossbeam, and little crossbeam includes first little crossbeam and second little crossbeam, and the below of first little crossbeam and second little crossbeam is equipped with big crossbeam and with first little crossbeam and second little crossbeam swing joint, is equipped with a plurality of couple regulation poles on the big crossbeam.
The invention has the following characteristics:
1. the gas heating device and the electric heating device are arranged to be complementary effectively, the gas heating device effectively improves the heat flow, solves the problems of poor heat fluidity and uneven heating of the electric heating device, and simultaneously effectively overcomes the defects of low temperature rising speed and insufficient temperature of the gas heating device, effectively improves the heating efficiency and the heating uniformity of the auxiliary arm, and simultaneously further improves the heating uniformity of the auxiliary arm by preheating in advance, so that powder is convenient to solidify; the space of the second chamber is effectively reduced by the setting of the curing platform, the rate of temperature rise of the second chamber is facilitated, the efficiency of temperature rise of the auxiliary arm is further facilitated, the generation of cracks is effectively reduced, and the curing production efficiency is improved.
2. The setting of rotatory nozzle of second forced cooling room, be convenient for concentrate cool off the auxiliary arm, be convenient for the wind stream takes away the heat on the auxiliary arm, reach quick refrigerated effect, the setting of first baffle and second baffle simultaneously can adjust the distance between auxiliary arm and the nozzle, is convenient for improve the cooling effect, simultaneously can rotate relatively, is convenient for adjust the concentration that improves the wind stream, the improvement of production efficiency of being convenient for.
3. The hook adjusting rod on the movable main trolley is arranged, the aim of translational turning of the auxiliary arm in a limited space is effectively achieved, meanwhile, the convenience of straight turning in a certain space is also achieved, the conveying efficiency is effectively improved, and the production automation and production efficiency are improved.
4. The invention is not limited to processing the auxiliary arm, and can spray workpieces with proper size and weight, thereby effectively improving the practicability of the coating system.
The detailed structure of the present invention is further described below with reference to the accompanying drawings and detailed description.
Drawings
FIG. 1 is a schematic flow chart of the process equipment of the coating system of the invention;
FIG. 2-is a cross-sectional view of the washing chamber of FIG. 1;
FIG. 3-is a cross-sectional view of the drying chamber of FIG. 1;
FIG. 4-is a cross-sectional view of the first strong cooling chamber of FIG. 1;
FIG. 5-is a cross-sectional view of the powder coating chamber of FIG. 1;
FIG. 6-is a cross-sectional view of the curing chamber of FIG. 1;
FIG. 7-is a schematic view of the electric heating device of FIG. 6;
FIG. 8-is a cross-sectional view of the electric heating device of FIG. 7;
FIG. 9-is a schematic view of a second strong cooling chamber rotary spray head of FIG. 1;
FIG. 10-is a schematic view of the rotary sprayer of FIG. 9;
FIG. 11-is a schematic view of the track structure of FIG. 1;
FIG. 12-is a cross-sectional view of the track structure of FIG. 11;
1-an upper part area, 2-a lower part area, 3-a track, 4-a recovery tank, 5-a degreasing chamber, 6-a first forced cooling chamber, 7-a first washing chamber, 8-a second washing chamber, 9-a drying chamber, 10-a rust removing chamber, 11-an air curtain, 12-a third washing chamber, 13-a manual cleaning machine, 14-a water quality purifying machine, 15-a control system, 16-a first chamber, 17-an electric heating device, 18-a second chamber, 19-a manual electrostatic powder spraying device and 20-a powder fluidizer;
21-grating detection device, 22-powder recovery device, 23-powder spraying chamber, 24-second forced cooling chamber, 25-bracket, 26-mist exhausting fan, 27-chain, 28-small beam, 29-large beam, 30-auxiliary arm, 31-spray pipe, 32-spray nozzle, 33-pedestrian passageway, 34-spray pump, 35-drying chamber air outlet, 36-drying chamber burner, 37-drying chamber circulating fan, 38-drying chamber air inlet, 39-first forced cooling chamber air outlet, 40-first forced cooling chamber circulating fan;
41-a first forced cooling chamber air inlet, 42-a rotating plate, 43-a powder collecting groove, 44-an air draft opening, 45-steps, 46-a heat insulation layer, 47-an air exhaust opening, 48-a curing platform and 49-a gas heating device; 50-mounting frame, 51-reflecting cover, 52-baffle, 53-mounting seat, 54-rotating nozzle, 55-flange, 56-chain guide rail, 57-moving main car guide rail, 58-movable shaft, 59-first small beam, 60-rotating shaft, 61-hook adjusting rod, 62-second small beam, 63-first small car, 64-second small car, 65-chain guide pulley, 66-moving guide rail guide pulley, 67-clamping plate.
Detailed Description
The auxiliary arm 30 is made of profile steel, the size of the profile steel is 96227 mm x 1100mm x 900mm (length, width and height when horizontally placed), the weight of the profile steel is 508kg, the size and the weight of the auxiliary arm 30 are different according to different types of cranes, but the shape of the profile steel is basically the same, and only the size and the weight information of one of the profile steel is given.
As shown in fig. 1-12: the coating system for manufacturing the crane auxiliary arm 30 by the profile steel comprises a pretreatment unit, a powder spraying unit and a curing unit, wherein the pretreatment unit, the powder spraying unit and the curing unit are connected in series on a track 3, the auxiliary arm 30 is conveyed through the track 3 to finish spraying by the pretreatment unit, the powder spraying unit and the curing unit, and the pretreatment unit is used for degreasing, dedusting and static removing of the auxiliary arm 30; the powder spraying unit is used for spraying the auxiliary arm 30, and the curing unit is used for curing the powder after spraying.
As shown in fig. 6-10, the curing unit includes a curing chamber for curing spraying and a second strong cooling chamber 24 for cooling after curing, the curing chamber includes a first chamber 16 and a second chamber 18, the first chamber 16 and the second chamber 18 are integrally arranged, the first chamber 16 is located at the rear end of the conveying direction, the second chamber 18 is located at the front end of the conveying direction, a curing platform 48 is arranged in the second chamber 18, the curing platform 48 is arranged at the bottom of the lower end of the second chamber 18, a gas heating device 49 is arranged in the curing platform 48, parallel electric heating devices 17 are relatively arranged at two sides above the curing platform 48, the curing temperature in the second curing chamber is 180-200 ℃, the first curing chamber is arranged, so that the temperature in the second curing chamber is conveniently kept warm, the auxiliary arm 30 is conveniently preheated in advance, the effect of heating the curing temperature is conveniently heated, the first curing chamber can be provided with a feeding heat-preserving door, the effect of further improving the heat-preserving is further, the first curing chamber and the second curing chamber are both in a multilayer structure, the middle is provided with a heat-preserving layer 46, the inner layer and the inner layer can be provided with a reflecting thin layer of heat-preserving paper.
The gas heating device 49 includes: circulating fan, combustor and air supply pipeline, circulating fan passes through air supply pipeline connection with the combustor, circulating fan's 34500m is the lower/h, pressure is 1500Pa, power is 22KW, the power of gas heating device 49 is 0.75KW, the supply-air outlet setting of gas heating device 49 is in solidification platform 48, air exit 47 sets up the top at the second curing chamber, when heating auxiliary arm 30, the opening of solidification platform 48 upper end makes the hot air flow form the inner loop in the second curing chamber, heat auxiliary arm 30, make the quick solidification of powder spraying on the auxiliary arm 30 realize, circulating fan's setting, be convenient for the improvement of heating efficiency, prevent the loss of heat, the saving of energy of being convenient for, heating device's heat supply capacity is 60 kcal/h.
The second room 18 inner wall is equipped with mounting bracket 50 relatively, be equipped with electric heater 17 on the mounting bracket 50, electric heater 17 sets up along track 3 direction of movement multirow, single row electric heater 17 quantity is 15 at most, preferably, single heating device vertical arrangement is in the installation in addition, the improvement of heating efficiency of being convenient for, heating device's power is 5600 big card/piece, single heating device parallelly connected sets up, be convenient for prevent the power overload of single power transmission line and take place the emergence of accidents such as blowing or conflagration, mounting bracket 50 is inside cavity metal material and makes, the power transmission line embeds of being convenient for, prevent the influence of high temperature to the power transmission line, the cost of maintenance of being convenient for reduces, be convenient for improve heating device life's improvement, the energy saving of being convenient for simultaneously. The track 3 between the first chamber 16 and the second chamber 18 is obliquely upwards arranged, the mounting frame 50 extends to the first chamber 16, the electric heating devices 17 at the extending ends are gradually increased along the moving direction of the track 3, so that the auxiliary arm 30 is preheated in advance when entering the second curing chamber, meanwhile, the temperature is gradually increased along the conveying direction, the auxiliary arm 30 is convenient to improve the heating uniformity and the preheating effect, the track 3 is arranged in the curing chamber, the electric heating devices 17 are infrared ceramic lamps or resistance heating lamps, the reflecting covers 51 are arranged on the electric heating devices 17, and the arrangement of the reflecting covers 51 effectively improves the heat concentration of the heating devices and prevents the heat loss; the curing time was 50min.
The gas heating device 49 is complementary with the electric heating device 17, the gas heating device 49 effectively improves the heat flow, solves the problems of poor heat fluidity and uneven heating of the electric heating device 17, and simultaneously the electric heating device 17 effectively solves the defects of low temperature rising speed and insufficient temperature of the gas heating device 49, effectively improves the effects of uniform heating, rising speed of heat temperature and solidification of a workpiece, and effectively reduces the possibility of cracking and swelling of the surface of the solidified coated workpiece.
The air inlet is arranged below the second forced cooling chamber 24, the air inlet is provided with a baffle 52, the baffle 52 is provided with a plurality of rotary nozzles 54, each rotary nozzle 54 comprises a spray head and a spherical base, the lower end of each spray head is spherical and embedded in the spherical base, the caliber of the upper end of each spray head is small, the caliber of the lower end of each spray head is large, the concentration and the guiding of wind flow are facilitated, the baffle 52 is provided with a plurality of through holes, the spherical bases are fixedly connected through flanges 55, the spherical bases are convenient to connect with the rotary nozzles 54, the spherical bases are arranged to facilitate the adjustment of the angle of the rotary spray heads, facilitate the concentration of the wind flow and improve the cooling effect, the second forced cooling chamber 24 can also be arranged into an open space erected by a support frame, the material cost of the wallboards around the second forced cooling chamber 24 is conveniently saved, the heat dissipation is facilitated, and the cooling efficiency is improved; meanwhile, the dust removing filter screen can be arranged at the air inlet, so that the pollution of dust to the solidified workpiece is reduced.
The baffle 52 includes relative motion's first baffle 52 and second baffle 52, first baffle 52 and second baffle 52 hub connection, the setting of first baffle 52 and second baffle 52 is convenient for improve the utilization ratio to the wind, be convenient for the wind flow takes away the heat on the work piece, forced cooling room upper end is equipped with the air outlet, the top is equipped with the fan, baffle 52 lower extreme can also set up lift platform, can adjust the distance between shower nozzle and the work piece according to the size or the height of position of work piece, prevent to blow away or blow down the powder after solidification because of the wind-force is too big, or the even distribution of powder on the work piece surface, the improvement of the cooling effect of being convenient for.
As shown in fig. 2, the pretreatment unit comprises a degreasing chamber 5, a washing chamber and a derusting chamber 10, wherein the degreasing chamber 5, the washing chamber and the derusting chamber 10 are integrally or combined, a pedestrian passageway 33 is arranged in each chamber, a movable bus passageway is arranged at the top of each chamber, a sewage outlet is arranged at the lower end of each chamber, the sewage outlet is connected with a recovery tank 4, and spray pipes 31 are arranged in each chamber; the spray pipe 31 is in a door frame shape, the top of the spray pipe 31 is provided with a fracture, the spray pipe 31 is provided with a plurality of spray nozzles 32, the spray pipe 31 is provided with a buffer bracket 25, and the buffer bracket 25 is arranged to prevent the rear thrust of the spray nozzles 32 in the spray chamber from damaging a pipeline; the degreasing chamber 5 is provided with a degreasing spray pump 34, the power of the spray pump 34 is 11KW, the washing chamber is provided with three spray pumps 34 with the flow rate of 45m 2/h, the power of the spray pump 34 of the rust removing chamber 10 is 11KW, and meanwhile, the upper part of the washing chamber is provided with a mist exhausting fan 26 with the power of 2.2KW for exhausting mist generated after spraying, and the pretreatment units are all completed in a room temperature environment, and if the pretreatment units are affected by seasons, gas can be adopted to heat treatment liquid or diluent.
The washing chamber is connected with a water quality purifier 14, the washing chamber comprises a first washing chamber 7, a second washing chamber 8 and a third washing chamber 12, the first washing chamber 7 is arranged between the degreasing chamber 5 and the second washing chamber 8, the front end of the second washing chamber 8 is connected with a rust removing chamber 10, the third washing chamber 12 is arranged at the front end of the rust removing chamber 10, the front end of the third washing chamber 12 is provided with a manual cleaner 13, the first washing chamber 7 adopts tap water for spraying, and the second washing chamber 8 and the third washing chamber 12 are connected with the water quality purifier 14; the pretreatment unit further comprises an upper part area 1 and a lower part area 2, wherein the upper part area 1 and the lower part area 2 are arranged separately, the processing is convenient, the independent upper part and the lower part are convenient to operate simultaneously or independently, the whole conveying system is not required to be stopped, the upper part area 1 and the lower part area 2 are provided with hydraulic lifting tables, and the convenience of the upper workpiece and the lower workpiece is convenient.
When the degreasing chamber 5 is used, the degreasing chamber 5 is sprayed with a phosphorus-free degreasing diluent containing 5-10% for 4min for degreasing, the first washing chamber 7 is sprayed with tap water for 2min, the second washing chamber 8 is sprayed with pure water for 2min, the rust removing chamber 10 is sprayed with organosilane for 4min to remove impurities such as rust powder on a workpiece, the third washing chamber 12 is sprayed with pure water for 2min to remove static electricity on the workpiece, the third washing chamber 12 can be sprayed for multiple times, so that resources are saved, the cleaning efficiency is improved, after the spraying is finished, whether places which are sprayed or cannot be treated are inspected, particularly gaps or depressions, can be further sprayed manually to remove the impurities such as rust powder on the workpiece, and the treatment effect of the procedures such as powder spraying solidification and the like is facilitated.
As shown in fig. 3-5, the powder spraying unit comprises a drying chamber 9, a first forced cooling chamber 6 and a powder spraying chamber 23, wherein the first forced cooling chamber 6 is arranged between the drying chamber 9 and the powder spraying chamber 23, the drying chamber 9 is dried by adopting gas hot air, an air curtain 11 is arranged at the workpiece inlet and outlet of the drying chamber 9, a transition section is arranged at the inlet and outlet of the drying chamber 9, an electric door is arranged on the transition section, the heat preservation and the temperature elevation effects of the drying chamber 9 are facilitated, the air curtain 11 is arranged in the transition section, the drying chamber 9 is made of heat preservation materials, the drying effect and the uniform heating of the workpiece are facilitated to be improved; the drying temperature is 100-330 ℃, the drying time is 15-25min, the bottom of the drying chamber 9 is provided with a drying chamber air inlet 38, the upper end is provided with a drying chamber air outlet 35, the drying chamber air outlet 35 is connected with one end of a drying chamber circulating fan 37 through a pipeline, the other end of the drying chamber circulating fan 37 is connected with a drying chamber burner 36, the drying chamber burner 36 is connected with the drying chamber air inlet 38, so that an internal circulation is formed, a dehumidifier can be further arranged on the pipeline, the drying of workpieces is facilitated, meanwhile, the energy is saved, the waste heat in the drying process can be used for adjusting the temperature in a pretreatment unit, the temperature of diluent or treatment liquid is improved, and the cleaning efficiency of the pretreatment unit is facilitated.
The top of the first forced cooling chamber 6 is provided with a first forced cooling chamber circulating fan 40, the bottom of the forced cooling chamber is provided with a first forced cooling chamber air inlet 41, the bottom and the side face are provided with a plurality of adjusting blowing nozzles, the first forced cooling chamber air outlet 39 is arranged at the top of the forced cooling chamber, the first forced cooling chamber air inlet 41 is arranged at the bottom and the top of the first forced cooling chamber air outlet 39 is arranged, the heat is taken away by favorable air flow, the improvement of cooling efficiency is facilitated, and the cooling time is 15-20min to the temperature of 45-50 ℃.
The bottom of the powder spraying chamber 23 is provided with an exhaust port 44, the exhaust port 44 is connected with the powder recovery device 22, the exhaust port 44 is provided with a rotary plate 42, the rotary plate 42 is an arc plate with a platform at the top, the bottom of the powder spraying chamber 23 is also provided with a powder collecting groove 43, the exhaust port 44 is arranged at one end of the powder collecting groove 43, the rotary plate 42 is arranged at the upper end opening of the powder collecting groove 43, the rotary plate 42 is connected with the powder collecting groove 43 in a shaft way, the rotary plate 42 is driven by a driving motor to rotate by taking the length direction of the rotary plate 42 as a central axis, two sides of the powder spraying chamber 23 are provided with powder spraying guns, the powder spraying guns are connected with powder spraying equipment, the front end of the powder spraying chamber 23 is provided with a grating detection device 21, the powder spraying thickness is 80-100 mu m, one side of the powder spraying chamber 23 is provided with a manual through hole, the through hole is provided with a step 45, four corners in the powder spraying chamber 23 are rounded, the operation of an operator is facilitated, the cleaning of the powder spraying chamber 23 is further provided with a spray gun, the front end of the powder spraying chamber 23 is connected with a manual electrostatic spraying equipment 19, the manual spraying device is facilitated, the manual spraying of the workpiece is facilitated, the manual spraying of the top of the powder spraying chamber 23 is further provided with a plurality of illumination lamps, and the cleaning effect of the powder spraying chamber is convenient to observe.
The powder recovery device 22 comprises a first cyclone recovery device and a second cyclone recovery device, wherein an air outlet of the first cyclone recovery device is connected with an air inlet of the second cyclone recovery device, an outlet is arranged at the lower end of the first cyclone recovery device, the outlet is connected with a vibrating screen of the powder fluidization device 20 through a conveying pipeline, the outlet of the powder fluidization device 20 is connected with a spray gun, a powder collection box is arranged at the lower end of the second cyclone recovery device, the air outlet is connected with an exhaust fan of 15KW, the air discharge quantity is 13500 m/h, a filter cartridge is arranged at the air outlet of the first cyclone recovery device and the air outlet of the second cyclone recovery device and used for collecting powder, and a pulse system is further arranged on the first cyclone recovery device and the second cyclone recovery device, so that the collection of the sprayed powder is convenient to improve, and meanwhile the filter cartridge is further prevented from being blocked by the sprayed powder.
As shown in fig. 11-12, the track 3 comprises a bracket 25, a guide rail, a movable main trolley and an equalizing beam, the guide rail is arranged on the bracket 25, a chain 27 driven by a driving motor is arranged in the guide rail, the chain 27 drives the movable main trolley to move forwards, the equalizing beam is arranged below the movable main trolley, the equalizing beam comprises a small cross beam 28 and a large cross beam 29, the small cross beam 28 comprises a first small cross beam 59 and a second small cross beam 62, the large cross beam 29 is arranged below the first small cross beam 59 and the second small cross beam 62 and is movably connected with the first small cross beam 59 and the second small cross beam 62, the large cross beam 29 can be connected through a movable shaft 58, a plurality of hook adjusting rods 61 are arranged on the large cross beam 29, the track 3 can be further arranged into a diffuse track 3 and a fast track 3, the fast track 3 is used for processing a pretreatment sheet, the diffuse track 3 is used for processing a follow-up powder spraying unit and a curing unit, meanwhile, the coordination operation of the loading area 1 and the unloading area 2 is facilitated, the accumulation of workpieces on the track 3 is further reduced, the overload and the risk of the track 3 is facilitated to be improved, and the service life of the track 3 is prolonged.
The large cross beam 29 is a long hollow beam formed by welding left and right channel steel and a steel plate, the hook adjusting rod 61 is penetrated in the hollow of the large cross beam 29 through bolts, the position of the hook adjusting rod 61 is adjusted back and forth relative to the large cross beam 29, the hook adjusting rod 61 is positioned through bolt fastening, the movement of the workpiece during conveying or the unstable gravity center of the workpiece is prevented from being deviated, and the occurrence of safety accidents is avoided; the big beam 29 can be also provided with a built-in guide rail structure, so that the hook adjusting rod 61 can move on the big beam 29 to adjust the position of the hanging point, and a positioning device of the hook adjusting rod 61 can be arranged to fix the position of the hanging point, thereby facilitating the movement stability of the workpiece during lifting and conveying and facilitating the improvement of the processing efficiency.
The large beam 29 is connected with the small beam 28 through a rotating shaft 60, and the rotating shaft 60 rotates 360 degrees by taking the vertical direction of the rotating shaft as an axis. When the large cross beam 29 conveys the auxiliary arm or the workpiece with larger size, the rotation shaft 60 can enable the conveyed workpiece to reduce the incapability of rotating and turning due to overlarge size and length in a limited space, so that the purpose of translating and turning of the workpiece is realized, and meanwhile, the straight turning can be realized in a larger space, the center-to-center distance between the front rail car and the rear rail car is kept unchanged, the problem of curved path conveying is effectively solved, and the improvement of the working efficiency is facilitated.
The guide rails comprise a chain guide rail 56 and a movable main car guide rail 57, the chain guide rail 56 and the movable main car guide rail 57 are integrally formed or arranged in an upper-lower position, so that the bearing capacity of the rail is improved conveniently, the workpiece is continuously hoisted for continuous production in the process until the spraying of the workpiece is finished, and the bearing capacity of the single guide rail is conveniently shared by the guide rails in the integral arrangement or the upper-lower position; the chain guide rail 56 and the movable main car guide rail 57 are fixed through bolts or welding of the peripheral U-shaped clamping plates 67, the arrangement of the U-shaped clamping plates 67 further improves the connection strength between the guide rails, meanwhile, the bearing capacity of the guide rails is improved, and the conveying efficiency is improved conveniently.
The rail is provided with a rail-changing valve and a waiting station, the rear end of the small cross beam 28 is provided with a feeler lever for controlling the rail-changing valve and/or the waiting station, and the feeler lever is convenient for orderly conveying workpieces on the rail, prevents extrusion or dropping, and simultaneously is convenient for saving energy; a driving motor is arranged above the guide rail and is fixedly connected with the bracket 25 through a bolt, and the driving motor drives the chain 27 to move through a driving wheel.
The movable main trolley comprises a track 3 front trolley and a track 3 rear trolley, the track 3 front trolley and the track 3 rear trolley both comprise a first trolley 63 and a second trolley 64, the upper ends of the first trolley 63 and the second trolley 64 are fixedly connected with a chain 27, the lower ends of the first trolley 63 and the second trolley 64 are movably connected with a first small cross beam 59 or a second small cross beam 62, a movable guide rail guide pulley 66 matched with a movable main trolley guide rail 57 is arranged on the movable main trolley, and a chain guide pulley 65 matched with the chain guide rail 56 is arranged on the chain 27; the chain guide pulleys 65 are disposed in four directions of up, down, left and right of the chain 27, and the moving rail guide pulleys 66 are disposed on both sides of the moving carriage.
The working principle of the invention is as follows: firstly, the auxiliary arm 30 or other workpieces are conveyed through the track 3 and are processed by the pretreatment unit, the powder spraying unit and the curing unit in sequence to finish spraying the workpieces, and the specific flow is as follows: feeding, non-phosphorus degreasing, water washing, pure water washing, silane rust removal, pure water washing (and manual supplementary spraying), drying treatment, forced cooling, powder spraying (and manual supplementary spraying), solidifying, forced cooling, feeding, and performing powder spraying solidification after degreasing, rust removal and static removal on the surface of a workpiece to form a protective coating with uniform protection; the invention is convenient to operate, the whole system is provided with the control system 15, automatic production is realized, corresponding parameters can be set through the control system 15 to process different workpieces, and the invention is not limited to processing only the auxiliary arm 30; the invention has the advantages of convenient and simple operation, effectively improves the efficiency and quality of workpiece spraying, uniformly heats the workpiece in the curing process, ensures that the powder spraying curing effect on the surface of the workpiece is outstanding, effectively reduces the generation of cracks or bulges, and effectively improves the efficiency, quality and application range of product processing.
The preferred embodiments of the present invention have been described in detail above, but it is apparent that the present invention is not limited to the above-described embodiments. Within the scope of the technical idea of the invention, various equivalent modifications can be made to the technical solution of the invention, which all belong to the protection scope of the invention. In addition, the technical features described in the above-described specific embodiments may be combined separately and independently as long as they are within the technical concept of the present invention.
Claims (5)
1. The coating system for manufacturing the auxiliary arm of the crane by using the profile steel comprises a pretreatment unit, a powder spraying unit and a curing unit, wherein the pretreatment unit, the powder spraying unit and the curing unit are arranged on a track, the auxiliary arm is conveyed through the track to finish spraying through the pretreatment unit, the powder spraying unit and the curing unit, and the pretreatment unit is used for degreasing, dedusting and static removing of the auxiliary arm; the powder spraying unit is used for spraying the auxiliary arm, and the curing unit is used for curing the powder after spraying; the method is characterized in that: the curing unit comprises a curing chamber for curing spraying and a second forced cooling chamber for cooling after curing, the curing chamber comprises a first chamber and a second chamber, the second chamber is arranged at the front end of the first chamber, a curing platform is arranged in the second chamber, a gas heating device is arranged in the curing platform, and electric heating devices are arranged on two sides above the curing platform; the second indoor wall is provided with a mounting frame relatively, parallel electric heating devices are arranged on the mounting frame relatively, the electric heating devices are arranged in a plurality of rows along the moving direction of the track, and the number of single-row electric heating devices is 2-15; the mounting frame extends to the first chamber, the electric heating device at the extending end is used for preheating the auxiliary arm, the track is arranged in the curing chamber, the track between the first chamber and the second chamber is obliquely upwards arranged, and the electric heating device is provided with a reflecting cover; an air inlet is arranged below the second forced cooling chamber, a baffle is arranged on the air inlet, a plurality of rotary nozzles are arranged on the baffle, each rotary nozzle comprises a spray head and a spherical base, the lower end of each rotary spray head is spherical and is embedded in each spherical base, a plurality of through holes are formed in the baffle, and the spherical bases are arranged on the through holes; the baffle comprises a first baffle and a second baffle which move relatively, the first baffle and the second baffle are connected in a shaft or hinge way, the upper end of the forced cooling chamber is provided with an air outlet, and the top of the forced cooling chamber is provided with a fan;
the track comprises a support, a guide rail, a movable main car and an equalizing beam, wherein the guide rail is arranged on the support, a chain driven by a driving motor is arranged in the guide rail, the chain drives the movable main car to move forwards, the equalizing beam is arranged below the movable main car and comprises a small cross beam and a large cross beam, the small cross beam comprises a first small cross beam and a second small cross beam, the large cross beam is arranged below the first small cross beam and the second small cross beam and is movably connected with the first small cross beam and the second small cross beam, and a plurality of hook adjusting rods are arranged on the large cross beam; the large cross beam is connected with the small cross beam through a rotating shaft, and the rotating shaft rotates 360 degrees by taking the vertical direction of the rotating shaft as an axis.
2. The coating system for manufacturing a crane jib from section steel according to claim 1, wherein: the pretreatment unit comprises a degreasing chamber, a washing chamber and a rust removing chamber, wherein the degreasing chamber, the washing chamber and the rust removing chamber are integrally or combined, a pedestrian passageway is arranged in each chamber, a movable bus passageway is arranged at the top of each chamber, the lower end of each movable bus passageway is arranged at a sewage outlet, the sewage outlet is connected with a recovery tank, spray pipes are arranged in each chamber, a plurality of spray nozzles are arranged on the spray pipes, and a buffer bracket is arranged on each spray pipe; the washing chamber is connected with the water quality purifier and comprises a first washing chamber, a second washing chamber and a third washing chamber, the first washing chamber is arranged between the degreasing chamber and the second washing chamber, the front end of the second washing chamber is connected with the rust removing chamber, the third washing chamber is arranged at the front end of the rust removing chamber, and the front end of the third washing chamber is provided with the manual cleaning machine; the pretreatment unit also comprises an upper part area and a lower part area.
3. The coating system for manufacturing a crane jib from section steel according to claim 1, wherein: the powder spraying unit comprises a drying chamber, a first forced cooling chamber and a powder spraying chamber, wherein the drying chamber adopts gas hot air for drying, and an air curtain is arranged at an inlet and an outlet of the drying chamber; the top of the first forced cooling chamber is provided with a first forced cooling chamber circulating fan, the bottom of the first forced cooling chamber is provided with a first forced cooling chamber air inlet, the bottom and the side face are provided with a plurality of adjusting blowing nozzles, and the top of the forced cooling chamber is provided with a first forced cooling chamber air outlet.
4. A coating system for making a crane jib from section steel according to claim 3, characterized in that: the powder spraying chamber bottom is equipped with the exhaust vent, and the exhaust vent is connected with powder recovery unit, and the exhaust vent is equipped with the rotor plate, and the rotor plate is the arc of platform for the top, and the powder spraying chamber both sides are equipped with the powder gun, and the powder spraying chamber front end is equipped with grating detection device, and the indoor four corners of powder spraying is the fillet, and the powder spraying chamber front end still is equipped with the benefit spray gun.
5. The coating system for manufacturing a crane jib from section steel according to claim 4, wherein: the powder recovery device comprises a first cyclone recovery device and a second cyclone recovery device, wherein an outlet is formed in the lower end of the first cyclone recovery device, the outlet is connected with a vibrating screen of the powder fluidization device through a conveying pipeline, the outlet of the powder fluidization device is connected with a spray gun, an air outlet of the first cyclone recovery device is connected with an air inlet of the second cyclone recovery device, a powder collection box is arranged at the lower end of the second cyclone recovery device, and an exhaust fan is arranged at the air outlet.
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| CN114472002B (en) * | 2021-09-22 | 2023-04-18 | 中大体育产业集团股份有限公司 | Additive powder spraying device for rubber-coated dumbbell |
| CN113941467B (en) * | 2021-09-30 | 2022-11-04 | 湖南三一中型起重机械有限公司 | Spraying device for telescopic boom and working machine |
| CN114308483A (en) * | 2021-11-22 | 2022-04-12 | 浙江科鑫重工有限公司 | H-shaped steel powder spraying system |
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