An automated thermal treatment sandblasting and painting system and a processing method thereof

Abstract

The application relates to the field of heat treatment sand blasting technology and discloses an automatic heat treatment sand blasting and paint spraying system and a processing method thereof. The system comprises a heat treatment system, a sand blasting system and a paint spraying system which are welded into an integrated whole through a heat preservation outer shell, a protective outer shell and a barrier outer shell, and the system control end is electrically connected with the controller control end. The heat treatment system comprises an annealing furnace bottom plate, an annealing furnace sliding car, a movable platform car, an annealing furnace main body, a sealing lifting door, an annealing furnace fan and an exhaust pipe; the sand blasting system comprises a sand blasting base, a sand blasting room, a sand blasting machine, a sand blasting gun, a storage box, a sand blasting circulating fan, a dust removal fan, a sand blasting chimney, a sand blasting pipeline, a collecting tank and a sand blasting moving car; the paint spraying system comprises a paint spraying base, a paint sprayer, a paint spraying room, a spraying tower, a dry filter box, an activated carbon adsorption tower, a catalytic combustion machine, a paint spraying exhaust fan, a paint spraying pipeline, a paint spraying chimney and a paint spraying moving car; the system realizes three-in-one operation space integration, greatly saving time and cost.

Description

Technical Field

[0001] The invention relates to the technical field of heat treatment sandblasting, and in particular to an automated heat treatment sandblasting and painting system and a processing method thereof. Background Art

[0002] Heat treatment refers to a metal thermal processing process in which a material is heated, insulated, and cooled in a solid state to achieve the desired structure and properties. Sandblasting is a process for treating workpiece surfaces. Compressed air is used as the power source to form a high-speed jet beam that sprays the material (copper ore sand, quartz sand, corundum, iron sand, sea sand) at high speed onto the surface of the workpiece to be treated, changing the surface appearance or shape. Painting is the process of spraying a layer of protective paint or pigment paint onto the surface of the material. These three processes are the most common and traditional methods for surface treatment of metal materials. They are usually independent or, due to factory limitations, appear in one area and another, with significant differences between them. This increases operating costs and time costs.

[0003] A spray booth is a room where paint is applied to filtered objects. It provides a specialized environment for painting operations, meeting the required temperature, humidity, light intensity, and air cleanliness. It also controls and treats paint mist and organic waste gases generated during painting operations, making it an environmentally friendly coating facility.

[0004] The paint spraying room consists of a room body, a negative pressure air inlet system, an exhaust system, a paint mist collection system (paint mud treatment system), a paint supply system, an electrical control system (lighting system), etc.

[0005] Traditionally, material processing involves a single process, such as annealing the metal, then transferring the annealed metal to a sandblasting room for sandblasting. This involves a certain distance between the annealing and sandblasting areas, which can lead to corrosion from airborne impurities. The sandblasted metal then travels a distance to the paint room for protection, where it can also be corroded by impurities. Prior art patent publication CN112372237B only discloses the heat treatment sandblasting process, not an integrated system. Furthermore, the current market lacks the space and equipment to integrate these three processes.

[0006] Therefore, in view of the above problems, the existing heat treatment sandblasting technology needs to be improved. Summary of the Invention

[0007] The purpose of the present application is to solve the problem that the existing heat treatment sand blasting technology is an independent individual, and to realize the integration of the three-in-one operation space by adopting a heat treatment system, a sand blasting system and a paint spraying system, thereby greatly saving time and cost.

[0008] The technical scheme of the present application is as follows:

[0009] An automatic heat treatment sand blasting and paint spraying system comprises a heat treatment system, a sand blasting system and a paint spraying system, the heat treatment system is provided with a heat preservation outer shell, the sand blasting system is provided with a protective outer shell, and the paint spraying system is provided with a barrier outer shell, the protective outer shell is connected to the heat preservation outer shell, the barrier outer shell is connected to the protective outer shell, and the heat preservation outer shell, the protective outer shell and the barrier outer shell integrate the heat treatment system, the sand blasting system and the paint spraying system into a whole.

[0010] Further, the heat treatment system comprises an annealing furnace bottom plate, an annealing furnace sliding car, a movable platform car, an annealing furnace main body, a sealing lifting door, an annealing furnace fan and an exhaust pipe, the annealing furnace bottom plate is installed on the heat preservation outer shell, the annealing furnace sliding car, the movable platform car and the annealing furnace main body are all installed on the annealing furnace bottom plate, the sealing lifting door is installed on the inlet end and the outlet end of the heat preservation outer shell, the annealing furnace fan and the exhaust pipe are both installed on the heat preservation outer shell, the annealing furnace fan is arranged on the exhaust pipe, the annealing furnace fan and the exhaust pipe cooperate and are used for discharging the smoke and other substances in the inside, and a part of heat is also taken away during the discharging process, the annealing furnace sliding car and the movable platform car are respectively arranged at the two ends of the annealing furnace main body, the annealing furnace sliding car is arranged at the inlet end of the annealing furnace main body, and the movable platform car is arranged at the outlet end of the annealing furnace main body, the annealing furnace sliding car is used for conveying the material to be annealed into the annealing furnace main body, the material is annealed in the annealing furnace main body, and the movable platform car is used for conveying the annealed material to the next station.

[0011] Further, the annealing furnace bottom plate is provided with an annealing sliding rail, the annealing furnace sliding car and the movable platform car are installed on the annealing sliding rail, and the annealing furnace sliding car and the movable platform car are rotationally or slidably connected to the annealing sliding rail.

[0012] Further, the sand blasting system comprises a sand blasting base, a sand blasting house, a sand blasting machine, a sand blasting gun, a storage tank, a sand blasting circulating fan, a dust removal fan, a sand blasting chimney, a sand blasting pipeline, a collection tank and a sand blasting mobile vehicle, the sand blasting base is installed on the protective outer shell, the sand blasting house, the sand blasting machine, the storage tank and the sand blasting mobile vehicle are all installed on the sand blasting base, and the sand blasting machine and the storage tank are both arranged outside the sand blasting house, the sand blasting machine is connected with the storage tank through a sand inlet, the sand blasting gun is installed on the sand blasting machine, the sand blasting mobile vehicle is used to transport annealed materials into the sand blasting house for sand blasting work, the sand blasting circulating fan is connected with the sand blasting house and the collection tank through the sand blasting pipeline respectively, the sand blasting circulating fan is used to recycle the sand blasting residual materials in the sand blasting house into the collection tank, the dust removal fan is connected with the sand blasting house and the sand blasting chimney through another sand blasting pipeline respectively, the dust removal fan is used to discharge the dust in the sand blasting house to the outside through another sand blasting pipeline and the sand blasting chimney, and the sand blasting circulating fan, the dust removal fan and the sand blasting chimney are all arranged outside the sand blasting house.

[0013] Further, the sand blasting house is a light steel house.

[0014] Further, the dust removal fan in the sand blasting system is also matched with an industrial dust collector (provided by Dingxiong Industrial Environmental Protection Company), and the industrial dust collector is an environmentally friendly industrial dust collector.

[0015] Further, the sand blasting house is a light steel house.

[0016] Further, the sand blasting base is provided with a sand blasting sliding rail, the sand blasting mobile vehicle is placed on the sand blasting sliding rail, and the sand blasting mobile vehicle and the sand blasting sliding rail on the sand blasting base are rotationally or slidably connected.

[0017] Further, the sand blasting machine is provided with a mechanical hand, the sand blasting gun is installed on the mechanical hand, and the mechanical hand is used to automatically operate the sand blasting gun and reduce manual operation.

[0018] Further, the mechanical hand on the sand blasting machine is a six-axis mechanical hand.

[0019] Further, the sand blasting machine is a gas-sand separation type shot blasting machine, and the gas-sand separation type shot blasting machine is provided with a discharge valve, the discharge valve is a straight-through type discharge valve, and the discharge valve has the advantages of good sand discharge state, non-blocking, convenient maintenance and replacement, etc.

[0020] Further, the sand blasting tube on the sand blasting gun selects a professional wear-resistant tube, especially a SABLEX sand blasting tube.

[0021] Further, the sand blasting nozzle on the sand blasting gun selects a tungsten steel material nozzle, which has the characteristics of wear-resistant strength and the like.

[0022] Further, the paint spraying system comprises a paint spraying base, a paint sprayer, a paint spraying room, a spray tower, a dry filter box, an activated carbon adsorption tower, a catalytic combustion machine, a paint spraying exhaust fan, a paint spraying pipeline, a paint spraying chimney and a paint spraying mobile vehicle, the paint spraying base is installed on the barrier outer shell, the paint sprayer, the paint spraying room and the paint spraying mobile vehicle are all installed on the paint spraying base, the paint sprayer is arranged in the paint spraying room, the paint spraying mobile vehicle is used for conveying the material from the sand blasting system into the paint spraying room, the spray tower, the dry filter box, the activated carbon adsorption tower, the catalytic combustion machine, the paint spraying exhaust fan and the paint spraying chimney are all arranged outside the paint spraying room, the inlet end of the spray tower is connected with the paint spraying room through the paint spraying pipeline, the outlet end of the spray tower is connected with the inlet end of the dry filter box through the paint spraying pipeline, the outlet end of the dry filter box is connected with the inlet end of the activated carbon adsorption tower through the paint spraying pipeline, the outlet end of the activated carbon adsorption tower is connected with the inlet end of the catalytic combustion machine through the paint spraying pipeline, the outlet end of the catalytic combustion machine is connected with the inlet end of the paint spraying exhaust fan through the paint spraying pipeline, and the outlet end of the paint spraying exhaust fan is connected with the inlet end of the paint spraying chimney through the paint spraying pipeline.

[0023] Further, the paint spraying base is provided with a paint spraying sliding rail, and the paint spraying mobile vehicle is placed on the paint spraying sliding rail, and the paint spraying mobile vehicle and the paint spraying sliding rail on the paint spraying base are rotationally or slidably connected.

[0024] Further, the paint spraying room selects an environmentally-friendly paint spraying room.

[0025] Further, the paint spraying room selects a type steel Q235 board room.

[0026] Further, the paint spraying room is provided with a water curtain type paint spraying table, which is used as a paint spraying workbench for objects.

[0027] Further, the paint sprayer selects a plurality of paint spraying robots.

[0028] Further, the spray tower selects a water mist type spray tower.

[0029] Further, the water mist type spray tower selects at least two, and the water mist type spray towers are in series connection.

[0030] Further, the water mist type spray tower selects a vortex type water curtain.

[0031] Further, the water spray tower is provided with an in-tank pump, a water baffle and a water tank, the in-tank pump pumps water in the water tank to the water baffle, then splashes water on the water baffle, the water baffle is provided with air holes and is used to output external gas to the water splash to form water mist.

[0032] Further, the activated carbon adsorption tower is provided with a filter layer and an adsorption layer, the filter layer is arranged at the inlet end of the activated carbon adsorption tower, and the adsorption layer is arranged between the filter layer and the outlet end of the activated carbon adsorption tower.

[0033] Further, the adsorption layer is at least two layers.

[0034] Further, the adsorption layer is selected from one or more of a honeycomb-shaped activated carbon adsorption layer or a microporous bead-shaped activated carbon adsorption layer.

[0035] Further, the microporous bead-shaped activated carbon is selected from activated pitch carbon balls.

[0036] Further, the preparation method of the activated pitch carbon ball is as follows:

[0037] Carbon ball step 1: 70-80 parts of raw coal tar pitch and 20-30 parts of C 10 H8 are mixed at 290-300°C, then treated at a constant temperature of 140-150°C in an air-tight environment (generally selected as a nitrogen environment) for about 1 hour to prepare primary carbon balls;

[0038] Carbon ball step 2: the primary carbon balls of carbon ball step 1 are selected and put into a pulverizer to be pulverized into 0.2-0.5mm granular to prepare microporous carbon balls;

[0039] Carbon ball step 3: the microporous carbon balls of carbon ball step 2 are selected and put into a stirrer containing polyvinyl alcohol solution, stirred at a speed of 300r / min and a constant temperature of 140-150°C for about 1 hour to prepare secondary microporous carbon balls;

[0040] Carbon ball step 4: the secondary microporous carbon balls of carbon ball step 3 are selected and put into a stirrer containing pure water or deionized water, stirred at a speed of 500r / min and room temperature for about 10min to prepare clean microporous carbon balls;

[0041] Carbon ball step 5: the clean microporous carbon balls of carbon ball step 4 are selected and put into air at about 300°C for oxidation for about 5 hours, then transferred to an air-tight high-temperature furnace, the temperature in the high-temperature furnace is about 950°C, and carbonization is performed for about 40min to prepare activated pitch carbon ball embryos.

[0042] Carbon ball step 6: select the active pitch carbon ball embryo of carbon ball step 5, immerse it in 10% KOH solution, then after 24 hours, take out the active pitch carbon ball embryo from the solution, place it in a constant temperature drying box at about 100°C for drying for 12 hours to remove the moisture inside, and then transfer the dried active pitch carbon ball embryo to an air-isolated high-temperature furnace (which is filled with nitrogen) at a temperature of about 700°C for about 1 hour of recarbonization to prepare the active pitch carbon ball.

[0043] Further, the catalytic combustion machine comprises a catalytic combustion machine shell, a fire arrestor, an air inlet valve, a heat exchanger, an electric heater and a catalytic chamber, the fire arrestor, the air inlet valve, the heat exchanger, the electric heater and the catalytic chamber are all installed in the catalytic combustion machine shell, the gas from the activated carbon adsorption tower passes through the fire arrestor, the air inlet valve, the heat exchanger, the electric heater (preheater) in sequence, the temperature of the gas is raised to the required temperature for catalytic combustion, enters the catalytic chamber and is decomposed into water and carbon dioxide under the action of the catalyst in the catalytic chamber, while a large amount of heat is released, the temperature of the gas is further increased, the high-temperature gas is partially heat-recovered by the heat exchanger and then discharged by the auxiliary fan. In addition, by controlling the flow of the auxiliary fan, the concentration of organic matter in the gas can be controlled within a suitable range, and the heat released by the combustion of the organic matter can maintain the heat required for system operation at this time, the burner in the catalytic chamber can be stopped, and the system operates by using the heat released by the combustion of the organic matter to save operation cost, etc.

[0044] Further, the heat exchanger is selected to be a high-efficiency heat exchanger.

[0045] Further, the catalytic combustion machine shell is selected to be a shell made of stainless steel, and the outside of the catalytic combustion machine shell is wrapped with a heat insulation cotton insulation layer.

[0046] Further, the electric heater is selected to be an isolated electric heater.

[0047] Further, the annealing furnace sliding car, the movable platform car, the sandblasting mobile car and the paint spraying mobile car are sequentially arranged, and the annealing furnace sliding car, the movable platform car, the sandblasting mobile car and the paint spraying mobile car are sequentially connected to the corresponding cars in the next position by sliding to the corresponding position.

[0048] Further, the heat-insulating outer shell is selected to be a metal shell with an insulation layer, the protective outer shell is selected to be a metal shell with high strength and high hardness, the barrier outer shell is selected to be a metal shell with good sealing property and a barrier layer, and the connection between the heat-insulating outer shell, the protective outer shell and the barrier outer shell is selected to be electric welding connection.

[0049] Further, the annealing furnace main body is selected to be a double-door double-car trolley furnace.

[0050] Further, the annealing furnace body is selected as a double-door double-car variable volume trolley furnace.

[0051] Further, the annealing furnace body is selected as a gas trolley annealing furnace.

[0052] Further, the annealing furnace body is selected as a full-fiber 950°C gas trolley annealing furnace; the full-fiber 950°C gas trolley annealing furnace uses a full-fiber refractory insulation layer, a high-aluminum full-fiber refractory module combined with a fiber felt, which has a tight seal, small thermal shock, small furnace body heat storage, and a thermal efficiency 20%-30% higher than that of a brick furnace (for example, the thermal efficiency of a brick trolley heat treatment furnace is about 15%, and the thermal efficiency of a full-fiber furnace is about 40%).

[0053] Further, the igniter (core combustion component) used in the full-fiber 950°C gas trolley annealing furnace is selected as a German BERU electrode, which can ensure the reliability and safety of burner ignition and flame detection; the burner used is a sinon gas burner SIO or SIC series burner, which has good consistency of the core component burner core (swirl disc) flame, sufficient air-gas mixed combustion, and energy saving, etc.

[0054] Further, the furnace body and trolley in the full-fiber 950°C gas trolley annealing furnace use an anti-impact frame casting RQT5.5, which has high thermal stability and strong anti-impact capability; the side sealing device uses a pneumatic crank rocker mechanism for sealing, is modularly installed, can be used repeatedly for a long time, is easy to replace and maintain, and forms a labyrinth sealing structure.

[0055] Further, the catalytic chamber is provided with a plasma photocatalytic machine.

[0056] Further, the automatic heat treatment sandblasting and painting system further comprises a controller electrically connected to the control ends of the annealing furnace sliding car, the movable platform car, the annealing furnace body, the sealing lifting door, the annealing furnace fan, the sandblasting machine, the sandblasting circulating fan, the dust removal fan, the sandblasting moving car, the paint sprayer, the spray tower, the paint spraying exhaust fan, the catalytic combustion machine, and the paint spraying moving car.

[0057] Further, the sealing lifting door is selected as a fireproof composite roller shutter door.

[0058] Further, the annealing furnace sliding car and the movable platform car are both selected as high-temperature-resistant movable cars.

[0059] An automatic heat treatment sandblasting processing method, the processing method comprising the following steps:

[0060] Step 1: System integration of heat treatment, sandblasting, and painting

[0061] Based on the automated heat treatment sandblasting and painting system, it is assembled and integrated. The protective shell, the shield shell and the barrier shell are welded together into a whole through the welding process. Then the annealing furnace sliding car, the movable platform car, the sandblasting mobile car and the painting mobile car are placed in the corresponding work stations in sequence for subsequent use.

[0062] Step 2: Surface treatment of primary metal materials

[0063] Selecting a raw metal material, placing it in a grinder filled with micron-sized spherical steel particles for surface grinding and removing surface oxide scale, or placing it in a jet mill filled with micron-sized spherical steel particles for shot blasting to remove oxide scale, placing the polished raw metal material in an acetone cleaning tank for organic matter cleaning, then placing it in a cleaning tank filled with ethanol for further cleaning, and finally using purified water to clean the raw metal material and drying its surface;

[0064] Step 3: Heat treatment of primary metal materials

[0065] Based on the system integration of step 1, the primary metal material of step 2 is placed in the annealing furnace sliding car, the annealing furnace sliding car moves to the annealing furnace body, and the primary metal material is sent to the annealing furnace body for high-temperature heat treatment. After the primary metal material is stored in the annealing furnace body, it is sealed and sealed. The annealing furnace body reaches the required temperature and heat treats the primary metal material. After the heat treatment of the primary metal material is completed, the annealing furnace fan and exhaust pipe are used to exhaust smoke, exchange air and heat in the annealing furnace. After the primary metal material is cooled to room temperature, the annealed metal material is prepared. The annealed metal material will be transferred to the movable platform car, and then transferred from the movable platform car to the sandblasting mobile car.

[0066] Step 4: Sandblasting of annealed metal material

[0067] Based on the system integration of step 1, the sandblasting mobile vehicle in step 3 and the annealed metal material thereon are selected. The sandblasting mobile vehicle transports the annealed metal material to the sandblasting room. The sandblasting machine is started and the annealed metal material is sandblasted by a sandblasting gun. After the sandblasting is completed, the sandblasted metal material is prepared. The sandblasted metal material is then loaded onto the sandblasting mobile vehicle, transferred to and loaded onto the painting mobile vehicle. During the sandblasting process, the sandblasting base, sandblasting circulation fan, dust removal fan, sandblasting chimney, sandblasting pipeline and collection tank will centrally process the sandblasting waste or residual materials.

[0068] Step 5: Painting of Sandblasted Metal Materials

[0069] Based on the system integration of step 1, the paint spraying mobile vehicle and the sandblasted metal material on it in step 4 are selected, the paint spraying mobile vehicle sends the sandblasted metal material into the paint spraying room, the paint sprayer starts and sprays paint on the sandblasted metal material, after the paint spraying is completed, the painted metal material is prepared, then the painted metal material is loaded on the paint spraying mobile vehicle for external transportation, and in the paint spraying process, the spray tower, the activated carbon adsorption tower, the catalytic combustion machine, the dry filter box, the paint spraying exhaust fan, the paint spraying pipeline, the paint spraying chimney and the paint spraying mobile vehicle concentrate on treating waste gas and waste particles;

[0070] Step 6: delivery of finished metal material

[0071] The painted metal material in step 5 is selected for packaging and delivery.

[0072] Beneficial effects

[0073] The present application adopts a heat treatment system, a sandblasting system and a paint spraying system through rational design of heat treatment sandblasting technology, and integrates the heat preservation outer shell, the protective outer shell and the barrier outer shell into a whole through welding connection, so that a three-in-one operation space can be realized in an integrated manner, time and cost are greatly saved, and the like; the activated carbon adsorption tower filled with activated pitch carbon balls can effectively absorb tail gas and dust generated during paint spraying, air pollution caused by waste materials and waste gas is avoided, and the like, so as to realize the purpose of environmental protection and low carbon; the controller is electrically connected with the annealing furnace sliding car, the movable platform car, the annealing furnace main body, the sealing lifting door, the annealing furnace fan, the sandblasting circulating fan, the dust removal fan, the sandblasting machine, the sandblasting mobile vehicle, the paint spraying room, the paint spraying exhaust fan, the catalytic combustion machine and the paint spraying mobile vehicle, so that automatic production and processing are realized; the controller controls the annealing furnace sliding car, the movable platform car, the sandblasting mobile vehicle and the paint spraying mobile vehicle, and the integrally formed base and bottom plate, which is helpful to realize continuous process, save time, improve efficiency and the like; the spray tower of the paint spraying system and the matched components can realize treatment of particulate matters and the like, environmental protection and low pollution, and the like; the whole treatment process of the structural steel plate can realize simple process of integrated workshop, effective connection of each link, avoidance of great idle time and pore time between traditional processing processes, influence on processing quality of products and the like. BRIEF DESCRIPTION OF DRAWINGS

[0074] Figure 1 It is a structural schematic view of the automatic heat treatment sandblasting and paint spraying system.

[0075] Figure 2 It is a structural schematic view of the paint spraying system of the automatic heat treatment sandblasting and paint spraying system.

[0076] Figure 3 It is a structural schematic view of the sandblasting system of the automatic heat treatment sandblasting and paint spraying system.

[0077] Figure 4 Structure diagram of annealing system of the automatic heat treatment sand blasting and painting system of the application.

[0078] Figure 5 Process flow diagram of the automatic heat treatment sand blasting and painting system of the application.

[0079] Figure 6 Microscope diagram of the structural steel plate used in the automatic heat treatment sand blasting and painting system of the application.

[0080] Figure 7 Diagram of the relationship between the different heat treatment time of the structural steel plate processed by the automatic heat treatment sand blasting and painting system of the application and the hardness thereof.

[0081] Figure 8 Microscope diagram of the structural steel plate (different sand blasting angles) processed by the automatic heat treatment sand blasting and painting system of the application with primer.

[0082] Figure 9 SEM diagram of the structural steel plate (different sand blasting angles) processed by the automatic heat treatment sand blasting and painting system of the application with primer.

[0083] Figure 10 SEM diagram of the structural steel plate (different sand blasting angles) processed by the automatic heat treatment sand blasting and painting system of the application.

[0084] Figure 11 SEM diagram of the activated carbon adsorption layer of the automatic heat treatment sand blasting and painting system of the application.

[0085] BRIEF DESCRIPTION OF DRAWINGS: 01, heat treatment system; 02, sand blasting system; 03, painting system; 10, annealing furnace bottom plate; 11, movable platform vehicle; 12, sealing lifting door; 13, annealing furnace sliding vehicle; 14, annealing furnace main body; 15, annealing furnace fan; 16, exhaust pipe; 20, sand blasting base; 21, sand blasting chimney; 22, sand blasting circulating fan; 23, collection tank; 24, dust removal fan; 25, storage box; 26, sand blasting machine; 27, sand blasting room; 28, sand blasting moving vehicle; 30, painting base; 31, spray tower; 32, painting room; 33, dry filter box; 34, activated carbon adsorption tower; 35, painting exhaust fan; 36, catalytic combustion machine; 37, painting chimney; 38, painting moving vehicle. DETAILED DESCRIPTION

[0086] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative effort shall fall within the protection scope of the present application.

[0087] In the basic embodiment, referring to Figures 1-4 As shown in the drawings, the present application provides an automatic heat treatment sand blasting and painting system, which comprises a heat treatment system 01, a sand blasting system 02 and a painting system 03. The heat treatment system 01 is provided with a heat preservation outer shell, the sand blasting system 02 is provided with a protective outer shell, and the painting system 03 is provided with a barrier outer shell. The heat preservation outer shell is connected with the protective outer shell, and the protective outer shell is connected with the barrier outer shell. The heat treatment system 01, the sand blasting system 02 and the painting system 03 are integrated into a whole by the heat preservation outer shell, the protective outer shell and the barrier outer shell. The heat preservation outer shell is selected from a metal shell with a heat preservation layer. The protective outer shell is selected from a metal shell with high strength and high hardness. The barrier outer shell is selected from a metal shell with good sealing performance and a barrier layer. The connection between the heat preservation outer shell, the protective outer shell and the barrier outer shell is selected from electric welding connection.

[0088] The heat treatment system 01 comprises an annealing furnace bottom plate 10, an annealing furnace sliding car 13, a movable platform car 11, an annealing furnace main body 14, a sealing lifting door 12, an annealing furnace fan 15 and an exhaust pipe 16. The annealing furnace bottom plate 10 is installed on the heat preservation outer shell. The annealing furnace sliding car 13, the movable platform car 11 and the annealing furnace main body 14 are all installed on the annealing furnace bottom plate 10. The sealing lifting door 12 is installed on the inlet end and the outlet end of the heat preservation outer shell. The annealing furnace fan 15 and the exhaust pipe 16 are both installed on the heat preservation outer shell. The annealing furnace fan 15 is arranged on the exhaust pipe 16. The annealing furnace fan 15 and the exhaust pipe 16 cooperate and are used for discharging the smoke and other substances in the inside. A part of heat is also taken away in the discharging process. The annealing furnace sliding car 13 and the movable platform car 11 are respectively arranged at the two ends of the annealing furnace main body 14. The annealing furnace sliding car 13 is arranged at the inlet end of the annealing furnace main body 14. The movable platform car 11 is arranged at the outlet end of the annealing furnace main body 14. The annealing furnace sliding car 13 is used for conveying the material to be annealed into the annealing furnace main body 14 for annealing. The movable platform car 11 is used for conveying the annealed material to the next station.

[0089] The annealing furnace bottom plate 10 is provided with an annealing slide rail, the annealing furnace sliding car 13 and the movable platform car 11 are installed on the annealing slide rail, and the annealing furnace sliding car 13 and the movable platform car 11 are in rotary or sliding connection with the annealing slide rail; the annealing furnace main body 14 selects a full-fiber 950 DEG C gas trolley annealing furnace, the igniter (core combustion component) used in the full-fiber 950 DEG C gas trolley annealing furnace selects a German BERU electrode, and the burner selects a sinon gas burner SIO or SIC series burner; the sealing lifting door 12 selects a fireproof composite roller shutter door; the annealing furnace sliding car 13 and the movable platform car 11 both select high-temperature-resistant movable cars; the furnace body and the trolley in the full-fiber 950 DEG C gas trolley annealing furnace adopt an anti-impact frame casting RQT5.5; the side sealing device adopts a pneumatic crank rocker mechanism for sealing, is installed in a modular manner, can be used repeatedly for a long time, is convenient to replace and maintain, and forms a labyrinth sealing structure;

[0090] The sand blasting system 02 comprises a sand blasting base 20, a sand blasting house 27, a sand blasting machine 26, a sand blasting gun, a storage tank 25, a sand blasting circulating fan 22, a dust removal fan 24, a sand blasting chimney 21, a sand blasting pipeline, a collection tank 23 and a sand blasting mobile car 28. The sand blasting base 20 is installed on the protective outer shell, the sand blasting house 27, the sand blasting machine 26, the storage tank 25 and the sand blasting mobile car 28 are all installed on the sand blasting base 20, the sand blasting machine 26 and the storage tank 25 are arranged outside the sand blasting house 27, the sand inlet of the sand blasting machine 26 is connected with the storage tank 25, the sand blasting gun is installed on the sand blasting machine 26, the sand blasting mobile car 28 is used for conveying the annealing material into the sand blasting house 27 to perform the sand blasting work, the sand blasting circulating fan 22 is connected with the sand blasting house 27 and the collection tank 23 through the sand blasting pipeline, the sand blasting circulating fan 22 is used for recycling the sand blasting residual material in the sand blasting house 27 into the collection tank 23, the dust removal fan 24 is connected with the sand blasting house 27 and the sand blasting chimney 21 through another sand blasting pipeline, the dust removal fan 24 is used for discharging the dust in the sand blasting house 27 to the outside through another sand blasting pipeline and the sand blasting chimney 21, and the sand blasting circulating fan 22, the dust removal fan 24 and the sand blasting chimney 21 are all arranged outside the sand blasting house 27.

[0091] The sand blasting room 27 is selected from a light steel house; the dust removal fan 24 in the sand blasting system 02 is additionally matched with an industrial dust remover (provided by Dingxiong Industrial Environmental Protection Company), and the industrial dust remover is an environmentally friendly industrial dust remover; the bottom of the sand blasting room 27 is provided with a honeycomb floor, the honeycomb floor is provided in a funnel shape, the large end of the honeycomb floor is provided upward, the small end of the honeycomb floor is installed on the sand blasting base 20, a sand blasting pipeline penetrates the small end of each honeycomb floor, and the sand blasting pipeline is used to collect and deposit the sand blasting residues in the sand blasting room 27 into the sand blasting pipeline through the honeycomb floor; the sand blasting base 20 is provided with a sand blasting sliding rail, the sand blasting sliding rail is provided with a sand blasting mobile vehicle 28, and the sand blasting mobile vehicle 28 is rotationally or slidably connected to the sand blasting sliding rail on the sand blasting base 20; the sand blasting machine 26 is provided with a mechanical hand, the mechanical hand is provided with a sand blasting gun, the mechanical hand is used to automatically operate the sand blasting gun, and manual operation is reduced, and the mechanical hand on the sand blasting machine 26 is selected from a six-axis mechanical hand; the sand blasting machine 26 is selected from a gas-sand separation type shot blasting machine, the gas-sand separation type shot blasting machine is provided with a discharge valve, the discharge valve is selected from a straight-through type discharge valve, the discharge valve has the advantages of good sand discharge state, difficulty in blockage, convenience in maintenance and replacement, and the like; the sand blasting pipe on the sand blasting gun is selected from a professional wear-resistant pipe SABLEX sand blasting pipe; the nozzle on the sand blasting gun is selected from a tungsten steel nozzle;

[0092] The paint spraying system 03 comprises a paint spraying base 30, a paint sprayer, a paint spraying room 32, a spray tower 31, a dry filter box 33, an activated carbon adsorption tower 34, a catalytic combustion machine 36, a paint spraying exhaust fan 35, a paint spraying pipeline, a paint spraying chimney 37 and a paint spraying mobile vehicle 38. The paint spraying base 30 is installed on the barrier outer shell, the paint sprayer, the paint spraying room 32 and the paint spraying mobile vehicle 38 are all installed on the paint spraying base 30, the paint sprayer is arranged in the paint spraying room 32, the paint spraying mobile vehicle 38 is used to transport the materials from the sand blasting system 02 into the paint spraying room 32, the spray tower 31, the dry filter box 33, the activated carbon adsorption tower 34, the catalytic combustion machine 36, the paint spraying exhaust fan 35 and the paint spraying chimney 37 are all arranged outside the paint spraying room 32, the inlet end of the spray tower 31 is connected with the paint spraying room 32 through the paint spraying pipeline, the outlet end of the spray tower 31 is connected with the inlet end of the dry filter box 33 through the paint spraying pipeline, the outlet end of the dry filter box 33 is connected with the inlet end of the activated carbon adsorption tower 34 through the paint spraying pipeline, the outlet end of the activated carbon adsorption tower 34 is connected with the inlet end of the catalytic combustion machine 36 through the paint spraying pipeline, the outlet end of the catalytic combustion machine 36 is connected with the inlet end of the paint spraying exhaust fan 35 through the paint spraying pipeline, and the outlet end of the paint spraying exhaust fan 35 is connected with the inlet end of the paint spraying chimney 37 through the paint spraying pipeline;

[0093] The paint spraying base 30 is provided with a paint spraying slide rail, and a paint spraying mobile vehicle 38 is placed on the paint spraying slide rail, and the paint spraying mobile vehicle 38 is rotationally or slidably connected with the paint spraying slide rail on the paint spraying base 30; the paint spraying room 32 is selected to be an environmentally friendly type steel Q235 board room; the paint spraying room 32 is internally provided with a water curtain type paint spraying table; a plurality of paint spraying robots are selected as the paint sprayers; two water mist type spray towers are selected as the spray towers 31, and the water mist type spray towers 31 are distributed in a head-to-tail series connection mode to form secondary water mist spraying, and the water mist type spray towers 31 are selected to be in a vortex type water curtain mode; the water mist type spray towers 31 are internally provided with an in-tank pump, a water baffle and a water tank, the in-tank pump pumps water in the water tank to the water baffle, then splashes are generated on the water baffle, the water baffle is provided with air holes and is used to output external incoming gas to the splashes to form water mist; the active carbon adsorption tower 34 is internally provided with a filter layer and an adsorption layer, the filter layer is arranged at an inlet end of the active carbon adsorption tower 34, and an adsorption layer is arranged between the filter layer and an outlet end of the active carbon adsorption tower 34, the adsorption layer is selected to be two layers, one layer of the adsorption layer is a honeycomb type active carbon adsorption layer, and the other layer of the adsorption layer is an active carbon adsorption layer containing microporous bead-shaped active carbon; the microporous bead-shaped active carbon is selected to be active pitch carbon balls;

[0094] Specifically, the preparation method of the active pitch carbon ball is as follows:

[0095] Carbon ball step 1: 70-80 parts of raw coal tar pitch and 20-30 parts of C 10 H8 are mixed with each other at 290-300 DEG C, and then are subjected to constant temperature treatment in an air isolation environment (generally selected to be a nitrogen environment) and at a constant temperature of 140-150 DEG C for about 1 hour to prepare primary carbon balls;

[0096] Carbon ball step 2: the primary carbon balls in the carbon ball step 1 are selected and are put into a pulverizer to be pulverized into 0.2-0.5 mm granular to prepare micro carbon balls;

[0097] Carbon ball step 3: the micro carbon balls in the carbon ball step 2 are selected and are put into a stirrer containing polyvinyl alcohol solution to be stirred at a rotation speed of 300 r / min and at a constant temperature of 140-150 DEG C for about 1 hour to prepare secondary micro carbon balls;

[0098] Carbon ball step 4: the secondary micro carbon balls in the carbon ball step 3 are selected and are put into a stirrer containing pure water or deionized water to be stirred and washed at a rotation speed of 500 r / min and at room temperature for about 10 min to prepare clean micro carbon balls;

[0099] Carbon ball step 5: select the clean tiny carbon ball of carbon ball step 4, put it into air at about 300 DEG C for oxidation for about 5 hours, then transfer to a high temperature furnace which is isolated from air, the temperature in the high temperature furnace is about 950 DEG C, and carbonize for about 40 min, to prepare active pitch carbon ball embryo.

[0100] Carbon ball step 6: select the active pitch carbon ball embryo of carbon ball step 5, immerse it in 10% KOH solution, then after 24 hours, take out the active pitch carbon ball embryo from the solution, put it in a constant temperature drying box at about 100 DEG C for drying for 12 hours to remove the moisture in it, then transfer the dried active pitch carbon ball embryo to a high temperature furnace which is isolated from air and filled with nitrogen, the temperature in the high temperature furnace is about 700 DEG C, and carbonize again for about 1 hour, to prepare active pitch carbon ball. Through the reaction of KOH and carbon, the activation of porous activated carbon can be enhanced, and functional groups such as C-O-K can be formed, which is helpful to the adsorption function of activated carbon. Test it, such as Figure 11 -B3.

[0101] The catalytic combustor 36 includes a catalytic combustor 36 shell, a flame arrester, an air inlet valve, a heat exchanger, an electric heater and a catalytic chamber, the flame arrester, the air inlet valve, the heat exchanger, the electric heater and the catalytic chamber are all installed in the catalytic combustor 36 shell, the gas from the activated carbon adsorption tower 34 will pass through the flame arrester, the air inlet valve, the heat exchanger, the electric heater (preheater) in sequence to increase the temperature of the gas to the required temperature for catalytic combustion, then enter the catalytic chamber and be decomposed into water and carbon dioxide under the action of the catalyst in the catalytic chamber, while a large amount of heat is released to further increase the temperature of the gas, and the high-temperature gas is then partially recovered by the heat exchanger and discharged by the auxiliary fan. In addition, by controlling the flow of the auxiliary fan, the concentration of organic matter in the gas can be controlled within a suitable range, and the heat released by the combustion of the organic matter can maintain the heat required for system operation, at this time, the burner in the catalytic chamber can be stopped, and the system can be operated by using the heat released by the combustion of the organic matter to save operation cost. The heat exchanger is a high-efficiency heat exchanger. The catalytic combustor 36 shell is made of stainless steel, and the outside of the catalytic combustor 36 shell is wrapped with a thermal insulation cotton insulation layer. The electric heater is an isolated electric heater. The catalytic chamber is provided with a plasma photocatalytic machine.

[0102] The annealing furnace sliding car 13, the movable platform car 11, the sand blasting mobile car 28 and the paint spraying mobile car 38 are sequentially arranged, and the annealing furnace sliding car 13, the movable platform car 11, the sand blasting mobile car 28 and the paint spraying mobile car 38 are all transferred to the corresponding car in the next position by sliding to the corresponding position.

[0103] The automatic heat treatment sandblasting and painting system 03 further comprises a controller electrically connected to the control ends of the annealing furnace sliding car 13, the movable platform car 11, the annealing furnace body 14, the sealing lifting door 12, the annealing furnace fan 15, the sandblasting machine 26, the sandblasting circulating fan 22, the dust removal fan 24, the sandblasting moving car 28, the paint sprayer, the spray tower 31, the paint spraying exhaust fan 35, the catalytic combustion machine 36 and the paint spraying moving car 38.

[0104] Referring to Figure 5 As shown in the drawings, an automatic heat treatment sandblasting processing method comprises the following steps:

[0105] Step 1: System integration of heat treatment, sandblasting and painting

[0106] Based on the automatic heat treatment sandblasting and painting system, the protective outer shell, the protective outer shell and the barrier outer shell are welded into a whole through a welding process, and then the annealing furnace sliding car 13, the movable platform car 11, the sandblasting moving car 28 and the paint spraying moving car 38 are placed in corresponding stations in sequence for subsequent use.

[0107] Step 2: Surface treatment of primary metal material

[0108] Select the primary metal material, put it into the grinding machine filled with micron-sized spherical steel particles for surface grinding treatment and remove the surface scale, or put it into the shot blasting machine filled with micron-sized spherical steel particles for shot blasting to remove the scale, then put the ground primary metal material into the acetone cleaning tank for organic cleaning, then put it into the cleaning tank filled with ethanol for further cleaning, and finally clean the primary metal material with pure water and dry its surface.

[0109] Step 3: Heat treatment of primary metal material

[0110] Based on the system integration of step 1, the primary metal material of step 2 is placed in the annealing furnace sliding car 13, the annealing furnace sliding car 13 moves to the annealing furnace body 14, and the primary metal material is sent into the annealing furnace body 14 for high-temperature heat treatment. After the annealing furnace body 14 is filled with the primary metal material and is sealed, the annealing furnace body 14 reaches the required temperature and the primary metal material is heat treated. After the heat treatment of the primary metal material is completed, the annealing furnace fan 15 and the exhaust pipe 16 are used for smoke exhaust, air exchange and heat exchange in the annealing furnace. After the primary metal material cools to room temperature, the annealed metal material is prepared and transferred to the movable platform car 11, which is then transferred to the sandblasting moving car 28.

[0111] Step 4: Sandblasting treatment of annealed metal material

[0112] Based on the system integration of step 1, the sandblasting mobile vehicle 28 in step 3 and the annealed metal material thereon are selected, the sandblasting mobile vehicle 28 sends the annealed metal material to the sandblasting room 27, the sandblasting machine 26 starts and performs sandblasting treatment on the annealed metal material through the sandblasting gun, after the sandblasting is completed, the sandblasted metal material is prepared, then the sandblasted metal material is loaded onto the sandblasting mobile vehicle 28, and is transferred to and loaded on the paint spraying mobile vehicle 38, during the sandblasting process, the sandblasting base 20, the sandblasting circulating fan 22, the dust removal fan 24, the sandblasting chimney 21, the sandblasting pipeline and the collection tank 23 concentrate on treating the sandblasting waste or excess material;

[0113] Step 5: paint spraying treatment of the sandblasted metal material

[0114] Based on the system integration of step 1, the paint spraying mobile vehicle 38 in step 4 and the sandblasted metal material thereon are selected, the paint spraying mobile vehicle 38 sends the sandblasted metal material to the paint spraying room 32, the paint sprayer starts and performs paint spraying on the sandblasted metal material, after the paint spraying is completed, the paint sprayed metal material is prepared, then the paint sprayed metal material is loaded onto the paint spraying mobile vehicle 38, and is transferred for external transportation, during the paint spraying process, the spray tower 31, the activated carbon adsorption tower 34, the catalytic combustion machine 36, the dry filter box 33, the paint spraying exhaust fan 35, the paint spraying pipeline, the paint spraying chimney 37 and the paint spraying mobile vehicle 38 concentrate on treating the waste gas and waste particles;

[0115] Step 6: delivery of the finished metal material

[0116] The paint sprayed metal material in step 5 is selected and packaged for delivery.

[0117] Referring to Figure 6 The selected Q235B structural steel plate has a smooth and clear microstructure surface, the light-colored area is the distribution of ferrite, and the dark-colored area is the distribution of pearlite, it can be seen that the proportion of pearlite is low, and the proportion of ferrite is high.

[0118] Example one, based on the basic example, the finished metal of annealing-sandblasting-paint spraying is prepared, the specific processing method includes the following steps:

[0119] Step 1: system integration of heat treatment, sandblasting and paint spraying

[0120] Based on the automatic heat treatment, sandblasting and paint spraying system, the protective outer shell, the protective outer shell and the barrier outer shell are welded together as a whole through the welding process, then the annealing furnace sliding vehicle 13, the movable platform vehicle 11, the sandblasting mobile vehicle 28 and the paint spraying mobile vehicle 38 are sequentially placed on the corresponding workstations for subsequent use;

[0121] Step 2: surface treatment of the initial Q235B structural steel plate

[0122] Select the initial Q235B structural steel plate, put it into the polishing machine equipped with micron-sized spherical steel particles for surface polishing treatment and remove the surface scale, or put it into the shot blasting machine equipped with micron-sized spherical steel particles for shot blasting to remove the scale, put the polished initial Q235B structural steel plate into the acetone cleaning tank for organic matter cleaning, then put it into the cleaning tank filled with ethanol for further cleaning, finally clean the initial Q235B structural steel plate with pure water and dry its surface, refer to the detection of the micro surface morphology shown in Figure 6

[0123] Step 3: Heat treatment of the initial Q235B structural steel plate

[0124] Based on the system integration of step 1, the initial Q235B structural steel plate of step 2 is put into the annealing furnace sliding car 13, the annealing furnace sliding car 13 moves to the annealing furnace main body 14, and the initial Q235B structural steel plate is sent to the annealing furnace main body 14 for high-temperature heat treatment. After the annealing furnace main body 14 is full of initial Q235B structural steel plate and is sealed, the annealing furnace main body 14 reaches the required temperature, that is, the constant temperature in the annealing furnace main body 14 is 760℃, and the heat preservation time is 2 hours, and the initial Q235B structural steel plate is heat treated. After the heat treatment of the initial Q235B structural steel plate is completed, the annealing furnace is exhausted, the air is exchanged and the heat is exchanged through the annealing furnace blower 15 and the exhaust pipe 16, and then cooled to room temperature (about 25℃) at a cooling speed of 20℃ / hour. After the initial Q235B structural steel plate is cooled to room temperature, the annealed Q235B structural steel plate is prepared, and its hardness is detected, as shown in Figure 7 The annealed Q235B structural steel plate is transferred to the movable platform car 11, and then to the sand blasting mobile car 28 by the movable platform car 11.

[0125] Step 4: Sand blasting treatment of the annealed Q235B structural steel plate

[0126] Based on the system integration of step 1, select the sand blasting mobile car 28 and the annealed Q235B structural steel plate on it in step 3, the sand blasting mobile car 28 sends the annealed Q235B structural steel plate to the sand blasting room 27, the sand blasting machine 26 starts and performs sand blasting treatment on the annealed Q235B structural steel plate through the sand blasting gun. At this time, the output pressure of the sand blasting machine is selected as 5bar, the garnet sand with particle size of 100μm is selected, and the sand blasting treatment is performed at an angle of 30° with the plate. After the sand blasting is completed, the sand blasted Q235B structural steel plate is prepared, and its surface is detected, as shown in Figure 10 ​-A2, and then the sandblasting Q235B structural steel plate material is loaded onto the sandblasting mobile vehicle 28, and is transferred to and loaded onto the paint spraying mobile vehicle 38. During the sandblasting process, the sandblasting base 20, the sandblasting circulating fan 22, the dust removal fan 24, the sandblasting chimney 21, the sandblasting pipeline, and the collection tank 23 collectively process the sandblasting waste or excess material;

[0127] Step 5: paint spraying treatment of the sandblasting Q235B structural steel plate material

[0128] Based on the system integration of Step 1, the paint spraying mobile vehicle 38 in Step 4 and the sandblasting Q235B structural steel plate material thereon are selected. The paint spraying mobile vehicle 38 sends the sandblasting Q235B structural steel plate material into the paint spraying room 32. The paint sprayer is started and performs paint spraying work on the sandblasting Q235B structural steel plate material. A layer of primer with a thickness of 50 μm is sprayed. The primer is selected to be a two-component epoxy polyamide containing zinc phosphate (anti-rust agent). After the paint spraying is completed, the paint sprayed Q235B structural steel plate material is prepared, and its surface is detected, such as Figure 8 -A and Figure 9 -A1, and then the paint sprayed Q235B structural steel plate material is loaded onto the paint spraying mobile vehicle 38, and is transferred for external transportation. During the paint spraying process, the spray tower 31, the activated carbon adsorption tower 34, the catalytic combustion machine 36, the dry filter box 33, the paint spraying exhaust fan 35, the paint spraying pipeline, the paint spraying chimney 37, and the paint spraying mobile vehicle 38 collectively process the waste gas and waste particles;

[0129] Step 6: delivery of the finished metal material

[0130] The paint sprayed Q235B structural steel plate material in Step 5 is selected and packaged for delivery.

[0131] Example Two, based on the basic example, an annealed-sandblasted-painted finished metal is prepared, and the specific processing method includes the following steps:

[0132] Step 1: system integration of heat treatment, sandblasting, and paint spraying

[0133] Based on the automatic heat treatment, sandblasting, and paint spraying system, the protective outer shell, the protective outer shell, and the barrier outer shell are mutually welded into a whole through a welding process. Then, the annealing furnace sliding vehicle 13, the movable platform vehicle 11, the sandblasting mobile vehicle 28, and the paint spraying mobile vehicle 38 are sequentially placed on the corresponding workstations for subsequent use.

[0134] Step 2: surface treatment of the initial Q235B structural steel plate material

[0135] Select the initial Q235B structural steel plate, put it into the polishing machine equipped with micron-sized spherical steel particles for surface polishing treatment and remove the surface scale, or put it into the shot blasting machine equipped with micron-sized spherical steel particles for shot blasting to remove the scale, put the polished initial Q235B structural steel plate into the acetone cleaning tank for organic matter cleaning, then put it into the cleaning tank filled with ethanol for further cleaning, finally clean the initial Q235B structural steel plate with pure water and dry its surface, refer to the detection of the micro surface morphology shown in Figure 6

[0136] Step 3: Heat treatment of the initial Q235B structural steel plate

[0137] Based on the system integration of step 1, the initial Q235B structural steel plate of step 2 is put into the annealing furnace sliding car 13, the annealing furnace sliding car 13 moves to the annealing furnace main body 14, and the initial Q235B structural steel plate is sent to the annealing furnace main body 14 for high-temperature heat treatment. After the annealing furnace main body 14 is full of initial Q235B structural steel plate and is sealed, the annealing furnace main body 14 reaches the required temperature, that is, the temperature in the annealing furnace main body 14 is 760℃, and the temperature is kept for 4 hours, and the initial Q235B structural steel plate is heat treated. After the heat treatment of the initial Q235B structural steel plate is completed, the annealing furnace is exhausted, the air is exchanged and the heat is exchanged through the annealing furnace blower 15 and the exhaust pipe 16, and then cooled to room temperature (about 25℃) at a cooling rate of 20℃ / hour. After the initial Q235B structural steel plate is cooled to room temperature, the annealed Q235B structural steel plate is prepared, and its hardness is detected, as shown in Figure 7 The annealed Q235B structural steel plate is transferred to the movable platform car 11, and then to the sand blasting mobile car 28 by the movable platform car 11;

[0138] Step 4: Sand blasting treatment of the annealed Q235B structural steel plate

[0139] Based on the system integration of step 1, select the sand blasting mobile car 28 and the annealed Q235B structural steel plate on it in step 3, the sand blasting mobile car 28 sends the annealed Q235B structural steel plate to the sand blasting room 27, the sand blasting machine 26 starts and performs sand blasting treatment on the annealed Q235B structural steel plate through the sand blasting gun. At this time, the output pressure of the sand blasting machine is selected as 5bar, the garnet sand with particle size of 100μm is selected, and the sand blasting treatment is performed at an angle of 45° with the plate. After the sand blasting is completed, the sand blasted Q235B structural steel plate is prepared, and its surface is detected, as shown in Figure 10 ​After the Q235B structural steel plate is sprayed, the sprayed Q235B structural steel plate is loaded onto the spraying mobile vehicle 38 for external transportation. During the spraying process, the spraying tower 31, the activated carbon adsorption tower 34, the catalytic combustion machine 36, the dry filter box 33, the spraying air extractor 35, the spraying pipeline, the spraying chimney 37, and the spraying mobile vehicle 38 collectively process the waste gas and waste particles.

[0140] Step 5: Painting treatment of the sprayed Q235B structural steel plate

[0141] Based on the system integration of step 1, the spraying mobile vehicle 38 in step 4 and the sprayed Q235B structural steel plate thereon are selected. The spraying mobile vehicle 38 sends the sprayed Q235B structural steel plate into the spraying room 32. The sprayer is started and performs a spraying operation on the sprayed Q235B structural steel plate to spray a layer of primer with a thickness of 50 μm. The primer is selected to be a two-component epoxy polyamide containing zinc phosphate (anti-rust agent). After the spraying is completed, a sprayed Q235B structural steel plate is prepared, and the surface thereof is detected. Figure 8 -B and Figure 9 After the Q235B structural steel plate is sprayed, the sprayed Q235B structural steel plate is loaded onto the spraying mobile vehicle 38 for external transportation. During the spraying process, the spraying tower 31, the activated carbon adsorption tower 34, the catalytic combustion machine 36, the dry filter box 33, the spraying air extractor 35, the spraying pipeline, the spraying chimney 37, and the spraying mobile vehicle 38 collectively process the waste gas and waste particles.

[0142] Step 6: Delivery of the finished metal material

[0143] The sprayed Q235B structural steel plate in step 5 is selected for packaging and delivery.

[0144] Example Three, based on the basic example, an annealed-sprayed-painted finished metal is prepared, and the specific processing method includes the following steps:

[0145] Step 1: System integration of heat treatment, spraying, and painting

[0146] Based on the automatic heat treatment, spraying, and painting system, the protective outer shell, the protective outer shell, and the barrier outer shell are welded together as a whole through a welding process. Then, the annealing furnace sliding vehicle 13, the movable platform vehicle 11, the spraying mobile vehicle 28, and the spraying mobile vehicle 38 are sequentially placed on the corresponding workstations for subsequent use.

[0147] Step 2: Surface treatment of the initial Q235B structural steel plate

[0148] Select the initial Q235B structural steel plate, put it into the polishing machine equipped with micron-sized spherical steel particles for surface polishing treatment and remove the surface scale, or put it into the shot blasting machine equipped with micron-sized spherical steel particles for shot blasting to remove the scale, put the polished initial Q235B structural steel plate into the acetone cleaning tank for organic matter cleaning, then put it into the cleaning tank filled with ethanol for further cleaning, finally clean the initial Q235B structural steel plate with pure water and dry its surface, refer to the detection of the micro surface morphology shown in Figure 6

[0149] Step 3: Heat treatment of the initial Q235B structural steel plate

[0150] Based on the system integration of step 1, the initial Q235B structural steel plate of step 2 is put into the annealing furnace sliding car 13, the annealing furnace sliding car 13 moves to the annealing furnace main body 14, and the initial Q235B structural steel plate is sent to the annealing furnace main body 14 for high-temperature heat treatment. After the annealing furnace main body 14 is full of initial Q235B structural steel plate and is sealed, the annealing furnace main body 14 reaches the required temperature, that is, the constant temperature in the annealing furnace main body 14 is 760℃, and the heat preservation time is 6 hours, and the initial Q235B structural steel plate is heat treated. After the heat treatment of the initial Q235B structural steel plate is completed, the annealing furnace is exhausted, the air is exchanged and the heat is exchanged through the annealing furnace blower 15 and the exhaust pipe 16, and then cooled to room temperature (about 25℃) at a cooling speed of 20℃ / hour. After the initial Q235B structural steel plate is cooled to room temperature, the annealed Q235B structural steel plate is prepared, and its hardness is detected, as shown in Figure 7 The annealed Q235B structural steel plate is transferred to the movable platform car 11, and then to the sand blasting mobile car 28 by the movable platform car 11;

[0151] Step 4: Sand blasting treatment of the annealed Q235B structural steel plate

[0152] Based on the system integration of step 1, select the sand blasting mobile car 28 and the annealed Q235B structural steel plate on it in step 3, the sand blasting mobile car 28 sends the annealed Q235B structural steel plate to the sand blasting room 27, the sand blasting machine 26 starts and performs sand blasting treatment on the annealed Q235B structural steel plate through the sand blasting gun. At this time, the output pressure of the sand blasting machine is selected as 5bar, the garnet sand with particle size of 100μm is selected, and the sand blasting treatment is performed at an angle of 60° with the plate. After the sand blasting is completed, the sand blasted Q235B structural steel plate is prepared, and its surface is detected, as shown in Figure 10 ​-C2, and then the sandblasted Q235B structural steel plate is loaded onto the sandblasting mobile vehicle 28, and is transferred to and loaded onto the paint spraying mobile vehicle 38. During the sandblasting process, the sandblasting base 20, the sandblasting circulating fan 22, the dust removal fan 24, the sandblasting chimney 21, the sandblasting pipeline and the collection tank 23 concentrate on treating the sandblasting waste or excess material;

[0153] Step 5: paint spraying treatment of the sandblasted Q235B structural steel plate

[0154] Based on the system integration of Step 1, the paint spraying mobile vehicle 38 in Step 4 and the sandblasted Q235B structural steel plate thereon are selected. The paint spraying mobile vehicle 38 sends the sandblasted Q235B structural steel plate into the paint spraying room 32. The paint sprayer is started and performs paint spraying work on the sandblasted Q235B structural steel plate. A layer of primer with a thickness of 50 μm is sprayed. The primer is selected to be a two-component epoxy polyamide containing zinc phosphate (anti-rust agent). After the paint spraying is completed, the paint sprayed Q235B structural steel plate is prepared, and its surface is detected, such as Figure 8 -C and Figure 9 -C1, and then the paint sprayed Q235B structural steel plate is loaded onto the paint spraying mobile vehicle 38, and is transferred for external transportation. During the paint spraying process, the spray tower 31, the activated carbon adsorption tower 34, the catalytic combustion machine 36, the dry filter box 33, the paint spraying exhaust fan 35, the paint spraying pipeline, the paint spraying chimney 37 and the paint spraying mobile vehicle 38 concentrate on treating the waste gas and waste particles.

[0155] Step 6: delivery of the finished metal material

[0156] The paint sprayed Q235B structural steel plate in Step 5 is selected and packaged for delivery.

[0157] Among them, Figure 7 is a schematic diagram of the relationship between different heat treatment times of the structural steel plate processed by the automatic heat treatment sandblasting and paint spraying system of the present application and the hardness thereof, from Figure 7 It can be seen that, by using the system, the hardness decreases with the increase of time after the heat treatment holding time is 4 hours, and the hardness reaches 80 HRB when the holding time is 4 hours.

[0158] Figure 8 is a microscope image of the structural steel plate (different sandblasting angles) processed by the automatic heat treatment sandblasting and paint spraying system of the present application and having a primer thereon, Figure 8 -A is the detection result of Example 1, Figure 8 -B is the detection result of Example 2, Figure 8 -C is the detection result of Example 3, from Figure 8 It can be seen from the three images that the surface of the structural steel after the primer is coated is smooth and uniform.

[0159] Figure 9 SEM images of the structural steel plate (different sandblasting angles) processed by the automatic heat treatment sandblasting and painting system of the present application with primer, Figure 9 -A1 is the detection result of example one, Figure 9 -B1 is the detection result of example two, Figure 9 -C1 is the detection result of example three, from Figure 9 It can be seen from the three images that there are differences in the microscopic morphology of the surface of the structural steel after painting primer, Figure 9 The surface of A1 is highly uniform, Figure 9 The surface of B1 has slight irregular gaps, and the surface uniformity is general, Figure 9 The surface of C1 has many irregular gaps, and the surface uniformity is very low; but from Figure 8 The three images do not affect the overall visual appearance.

[0160] Figure 10 SEM images of the structural steel plate (different sandblasting angles) processed by the automatic heat treatment sandblasting and painting system of the present application, Figure 10 -A2 is the detection result of example one, Figure 10 -B2 is the detection result of example two, Figure 10 -C2 is the detection result of example three, from Figure 10 It can be seen from the three images that there are differences in the microscopic morphology of the surface of the structural steel after sandblasting, Figure 10 The surface of A2 is highly uniform, Figure 10 The surface of B2 has slight irregular pits, and the surface uniformity is general, Figure 10 The surface of C2 has many irregular pits, and the surface uniformity is very low, and the frosted surface helps the adhesion of the subsequent primer.

[0161] Figure 11 SEM images of the activated carbon adsorption layer of the automatic heat treatment sandblasting and painting system of the present application, Figure 11 -A3 is the surface morphology of ordinary activated carbon, which has shallow cracks on the surface, Figure 11 -B3 is the surface morphology of activated pitch carbon ball, which has very deep cracks on the surface, which helps adsorption and activation.

[0162] Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated heat treatment sandblasting and painting system, characterized in that: The automated heat treatment sandblasting and paint spraying system comprises: a heat treatment system, a sandblasting system and a paint spraying system, the heat treatment system is provided with a heat-insulating outer shell, the sandblasting system is provided with a protective outer shell, the paint spraying system is provided with a barrier outer shell, the heat-insulating outer shell is connected to the protective outer shell, the protective outer shell is connected to the barrier outer shell, and the heat-insulating outer shell, the protective outer shell and the barrier outer shell integrate the heat treatment system, the sandblasting system and the paint spraying system into a whole, and the control ends of the heat treatment system, the sandblasting system and the paint spraying system are respectively electrically connected to the control end of the controller; Wherein, the heat treatment system includes an annealing furnace bottom plate, an annealing furnace sliding car, a movable platform car, an annealing furnace body, a sealed lifting door, an annealing furnace fan and a smoke exhaust duct, the annealing furnace bottom plate is installed on the thermal insulation outer shell, the annealing furnace sliding car, the movable platform car and the annealing furnace body are all installed on the annealing furnace bottom plate, the annealing furnace sliding car is arranged at the inlet end of the annealing furnace body, the movable platform car is arranged at the outlet end of the annealing furnace body, the sealed lifting door is installed on the inlet and outlet ends of the thermal insulation outer shell, the annealing furnace fan and the smoke exhaust duct are both installed on the thermal insulation outer shell, and the annealing furnace fan is arranged on the smoke exhaust duct; Wherein, the sandblasting system includes a sandblasting base, a sandblasting room, a sandblasting machine, a sandblasting gun, a storage box, a sandblasting circulation fan, a dust removal fan, a sandblasting chimney, a sandblasting pipeline, a collection tank and a sandblasting mobile vehicle, the sandblasting base is installed on the protective outer shell, the sandblasting room, the sandblasting machine, the storage box and the sandblasting mobile vehicle are all installed on the sandblasting base, the sandblasting machine and the storage box are both arranged outside the sandblasting room, the sand inlet of the sandblasting machine is connected to the storage box, the sandblasting gun is installed on the sandblasting machine, the sandblasting circulation fan is respectively connected to the sandblasting room and the collection tank through the sandblasting pipeline, the dust removal fan is respectively connected to the sandblasting room and the sandblasting chimney through another sandblasting pipeline, and the sandblasting circulation fan, dust removal fan and sandblasting chimney are all arranged outside the sandblasting room; The paint spraying system includes a paint spraying base, a paint sprayer, a paint spraying room, a spray tower, a dry filter box, an activated carbon adsorption tower, a catalytic burner, a paint spraying exhaust fan, a paint spraying pipeline, a paint spraying chimney and a paint spraying mobile vehicle. The paint spraying base is installed on the barrier outer shell, and the paint sprayer, the paint spraying room and the paint spraying mobile vehicle are all installed on the paint spraying base. The paint sprayer is arranged in the paint spraying room, and the spray tower, dry filter box, activated carbon adsorption tower, catalytic burner, paint spraying exhaust fan and paint spraying chimney are all arranged outside the paint spraying room. The inlet end of the tower is connected to the paint spray room through the paint spray pipeline, and the outlet end of the spray tower is connected to the inlet end of the dry filter box through the paint spray pipeline, the outlet end of the dry filter box is connected to the inlet end of the activated carbon adsorption tower through the paint spray pipeline, the outlet end of the activated carbon adsorption tower is connected to the inlet end of the catalytic burner through the paint spray pipeline, the outlet end of the catalytic burner is connected to the inlet end of the paint spray exhaust fan through the paint spray pipeline, and the outlet end of the paint spray exhaust fan is connected to the inlet end of the paint spray chimney through the paint spray pipeline.

2. The automated heat treatment sandblasting and painting system according to claim 1, characterized in that: A honeycomb floor is provided at the bottom of the sandblasting room. The honeycomb floor is arranged in a funnel shape, with the large end of the honeycomb floor facing upward. The small end of the honeycomb floor is installed on the sandblasting base, and the sandblasting pipeline runs through the small end of each honeycomb floor.

3. The automated heat treatment sandblasting and painting system according to claim 1, characterized in that: The sandblasting machine is provided with a manipulator, and the sandblasting gun is installed on the manipulator.

4. The automated heat treatment sandblasting and painting system according to claim 1, characterized in that: The spray tower is a water mist spray tower.

5. The automated heat treatment sandblasting and painting system according to claim 4, characterized in that: An in-tank pump, a water baffle and a water tank are installed in the water mist spray tower. The in-tank pump is used to pump water in the water tank to the water baffle to form water splashes and water mist.

6. The automated heat treatment sandblasting and painting system according to claim 1, characterized in that: A filter layer and an adsorption layer are provided in the activated carbon adsorption tower. The filter layer is arranged at the inlet end of the activated carbon adsorption tower, and the adsorption layer is provided between the filter layer and the outlet end of the activated carbon adsorption tower.

7. The automated heat treatment sandblasting and painting system according to claim 6, characterized in that: The adsorption layer is selected from one or more of a honeycomb activated carbon adsorption layer and an activated carbon adsorption layer containing microporous beaded activated carbon.

8. The automated heat treatment sandblasting and painting system according to claim 7, characterized in that: The microporous bead-shaped activated carbon is selected from activated pitch carbon balls.

9. The automated heat treatment sandblasting and painting system according to claim 8, characterized in that: The preparation method of the activated pitch carbon balls is as follows: Step 1: According to their weight, select 70-80 parts of raw coal tar pitch and 20-30 parts of C 10 H8 are mixed with each other at 290°C-300°C, and then are subjected to constant temperature treatment at a constant temperature of 140°C-150°C for 1 hour in an air-tight environment to prepare primary carbon balls; Carbon ball step 2: Select the primary carbon balls from step 1, put them into a crusher for crushing, and crush them into 0.2mm-0.5mm particles to prepare micro carbon balls; Carbon ball step 3: Select the micro carbon balls prepared in step 2, place them in a stirrer filled with polyvinyl alcohol solution, and stir at a speed of 300 rpm and a constant temperature of 140°C-150°C for 1 hour to prepare secondary micro carbon balls; Carbon ball step 4: Select the secondary micro carbon balls from step 3, place them in a stirrer filled with purified water or deionized water, and stir and wash them at room temperature at a speed of 500 rpm for 10 minutes to prepare clean micro carbon balls; Carbon ball step 5: Select the clean tiny carbon balls from step 4, place them in air at 300°C for oxidation for 5 hours, and then transfer them to a high-temperature furnace isolated from air at a temperature of 950°C and carbonize for 40 minutes to prepare activated pitch carbon ball embryos; Carbon ball step 6: Select the activated asphalt carbon ball embryo from the carbon ball step 5, immerse it in a 10% KOH solution, and then place it for 24 hours, take out the activated asphalt carbon ball embryo from the solution, and place it in a constant temperature drying oven at 100°C for 12 hours to remove the moisture inside. Then transfer the dried activated asphalt carbon ball embryo to a high-temperature furnace isolated from air. The temperature in the high-temperature furnace is 700°C, and it is carbonized again for 1 hour to prepare activated asphalt carbon balls.

10. A method for processing using the automated heat treatment sandblasting and painting system according to any one of claims 1 to 9, characterized in that: The processing method comprises the following steps: Step 1: System integration of heat treatment, sandblasting and painting Based on the automated heat treatment sandblasting and painting system, it is assembled and integrated. The thermal insulation shell, protective shell and barrier shell are welded together into a whole through the welding process. Then the annealing furnace sliding car, movable platform car, sandblasting mobile car and painting mobile car are placed in the corresponding work stations in sequence for subsequent use. Step 2: Surface treatment of primary metal materials Selecting a raw metal material, placing it in a grinder filled with micron-sized spherical steel particles for surface grinding and removing surface oxide scale, or placing it in a jet mill filled with micron-sized spherical steel particles for shot blasting to remove oxide scale, placing the polished raw metal material in an acetone cleaning tank for organic matter cleaning, then placing it in a cleaning tank filled with ethanol for further cleaning, and finally using purified water to clean the raw metal material and drying its surface; Step 3: Heat treatment of primary metal materials Based on the system integration of step 1, the surface-treated primary metal material of step 2 is placed in the annealing furnace sliding car. The annealing furnace sliding car moves to the annealing furnace body and delivers the primary metal material into the annealing furnace body for high-temperature heat treatment. After the primary metal material is stored in the annealing furnace body, it is sealed and sealed. The annealing furnace body reaches the required temperature and heat-treats the primary metal material. After the heat treatment of the primary metal material is completed, the annealing furnace fan and exhaust pipe are used to exhaust smoke, exchange air, and exchange heat in the annealing furnace. After the primary metal material is cooled to room temperature, the annealed metal material is prepared. The annealed metal material will be transferred to a movable platform car, and then transferred from the movable platform car to the sandblasting mobile car. Step 4: Sandblasting of annealed metal material Based on the system integration of step 1, the sandblasting mobile vehicle in step 3 and the annealed metal material thereon are selected. The sandblasting mobile vehicle transports the annealed metal material to the sandblasting room. The sandblasting machine is started and the annealed metal material is sandblasted by a sandblasting gun. After the sandblasting is completed, the sandblasted metal material is prepared. The sandblasted metal material is then loaded onto the sandblasting mobile vehicle, transported, and loaded onto the painting mobile vehicle. During the sandblasting process, the sandblasting base, sandblasting circulation fan, dust removal fan, sandblasting chimney, sandblasting pipeline, and collection tank will centrally process the sandblasting waste or residual materials. Step 5: Painting of Sandblasted Metal Materials Based on the system integration of step 1, the painting mobile vehicle and the sandblasted metal material on it in step 4 are selected. The painting mobile vehicle transports the sandblasted metal material to the paint spraying room. The paint sprayer is started and the sandblasted metal material is painted. After the painting is completed, the painted metal material is prepared and then loaded onto the painting mobile vehicle for external transportation. During the painting process, the spray tower, activated carbon adsorption tower, catalytic burner, dry filter box, paint exhaust fan, paint pipeline and paint chimney will centrally treat the exhaust gas and waste particles. Step 6: Delivery of finished metal materials Select the painted metal material from step 5 and package it for shipment.

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