Drying device used after spraying passivation

Abstract

The utility model relates to a drying device after spraying passivation, which comprises an air-drying channel, insulating layers are arranged on the bottom surface, the left side surface, the right side surface and the top surface of the air-drying channel, a support beam is further arranged on the bottom surface of the air-drying channel, a glass fiber reinforced plastic grating is mounted on the support beam, and a plurality of groups of high-pressure hot air mechanisms are mounted on the air-drying channel. An air heater is arranged outside the air-drying channel and connected with the high-pressure hot air mechanism through a pipeline, a rail supporting frame is arranged on the top of the air-drying channel, a rail is fixedly installed below the rail supporting frame in a welded mode, and an opening facilitating passing of hanging pieces is further formed in the top of the air-drying channel. By the adoption of the technical scheme, high-pressure gas can blow off most of water on the surface of a workpiece, a large amount of energy consumed by evaporation of the part of water is saved, high-temperature gas can rapidly evaporate a small amount of water which cannot be blown off in areas such as corners and gaps of the workpiece, production time can be effectively shortened, production efficiency is improved, and production cost is reduced. And the space occupied in the drying waiting process is reduced.

Description

Technical Field

[0001] The utility model relates to the field of passivation equipment for steel workpieces, in particular to a drying device after spray passivation. Background Art

[0002] With the rapid development of society, the consumption of steel has increased sharply. A large number of steel parts are used in various fields such as construction, transportation, furniture and household appliances. Since the use of steel parts will be exposed to the air, the steel parts are easily corroded to varying degrees, thus shortening the service life. Passivation is to convert the metal surface into a state that is not easily oxidized, which is a method to delay the corrosion rate of the metal. The passivation anti-corrosion process is generally accompanied by closed anti-corrosion.

[0003] In the spray passivation and closed paint process pipeline, since passivation is liquid spraying, the workpiece needs to be washed before and after passivation. After passivation, the liquid on the workpiece surface needs to be cleaned up before the closed anti-corrosion process can be carried out. Finally, the workpiece is naturally dried. Since natural drying takes a long time and also occupies a large amount of production land, the production efficiency is very low. Another way is to use an electric oven or a hot air oven to dry the workpiece. Whether it is an electric oven or a gas oven, it will consume a large amount of energy, the drying efficiency is limited, and it also takes a long time and consumes a large amount of electricity, resulting in high production costs and unable to meet the production requirements of high efficiency and low energy consumption.

[0004] In the spray passivation and closed paint process pipeline, a pipeline track is generally provided. Summary of the Invention

[0005] The purpose of the utility model is to provide a drying device after spray passivation, aiming to solve the problem of low production efficiency when drying workpieces on the spray passivation and closed paint process pipeline.

[0006] The technical solution adopted by the utility model is: a drying device after spray passivation, including a square air drying channel. The air drying channel is arranged behind the spray passivation process pipeline. The front end of the air drying channel is docked with the spray passivation process pipeline, and the rear end is docked with the closed paint process pipeline. Heat insulation layers are arranged on the bottom surface, left side surface, right side surface and top surface of the air drying channel. Two mutually parallel support beams are also arranged on the bottom surface of the air drying channel. The support beams bulge upward so that a water flow groove is formed on the bottom surface of the air drying channel. A fiberglass grating is installed on the support beams. A plurality of groups of high-pressure hot air mechanisms controlled by a control box are installed on the air drying channel. Each group of high-pressure hot air mechanisms includes a plurality of high-pressure hot air outlets located on the bottom surface, left inner side, right inner side and under the top of the air drying channel. A hot air blower is arranged outside the air drying channel. The hot air blower is connected with the high-pressure hot air mechanism through a pipeline. A track support frame is arranged on the top of the air drying channel. A track is welded and fixed under the track support frame. An opening for facilitating the hanging parts to pass through is also arranged on the top of the air drying channel.

[0007] A further technical solution of the present utility model is that the hot air blower is an industrial hot air blower, and multiple hot air blowers are provided. Each hot air blower is respectively connected to a set of high-pressure hot air mechanisms to ensure that the high-pressure hot air mechanisms have sufficient air pressure and air output.

[0008] A further technical solution of the present utility model is that the heat insulation layer is high-temperature resistant heat insulation cotton. The heat insulation layer is attached to the outside of the air drying channel, and the outside of the heat insulation layer is sealed with a steel plate to improve the heat insulation effect and the strength of the air drying channel.

[0009] A further technical solution of the present utility model is that support feet are installed below the air drying channel, and the support feet are support feet with adjustable height, so as to facilitate the connection of the track to the tracks of the spray passivation and sealing paint production line.

[0010] A further technical solution of the present utility model is that the high-pressure hot air outlet is a movable opening with adjustable wind direction, which is convenient for adjusting the wind direction.

[0011] The beneficial effects of the present utility model are as follows: Due to the adoption of the above technical solutions, for a drying device after spray passivation of the present utility model, most of the moisture on the surface of the workpiece will be blown off by high-pressure gas, saving a large amount of energy consumed for the evaporation of this part of moisture. The high-temperature gas will quickly evaporate the small amount of moisture that cannot be blown off in areas such as the corners and gaps of the workpiece, which can effectively reduce the production time, improve the production efficiency, and reduce the site occupied during the drying waiting process. Description of the Drawings

[0012] Figure 1 is a schematic structural view of a drying device after spray passivation of the present utility model;

[0013] Figure 2 is a schematic cross-sectional structural view of a drying device after spray passivation of the present utility model. Detailed Embodiments

[0014] The following further describes the present utility model in conjunction with the drawings and specific embodiments.

[0015] Embodiment:

[0016] As Figure 1 、 2A drying device after spray passivation is shown, which includes a square air-drying channel 1. The air-drying channel is arranged behind the spray passivation process line. The front end of the air-drying channel is docked with the spray passivation process line, and the rear end is docked with the sealing paint process line. The length of the air-drying channel is 7 meters, and the width and height are sized to ensure the smooth passage of the passivated workpieces. Heat insulation layers 2 are provided on the bottom surface, left side surface, right side surface and top surface of the air-drying channel. Two parallel support beams 5 are also provided on the bottom surface of the air-drying channel. The support beams bulge upward to form a water flow groove 13 on the bottom surface of the air-drying channel, facilitating the smooth discharge of the blown-off water. A fiberglass grating 14 is installed on the support beams to prevent the water at the bottom from being blown up again by the high-temperature and high-pressure air and splashing onto the workpieces. A plurality of groups of high-pressure hot air mechanisms 4 controlled by a control box are installed on the air-drying channel. The control box controls their opening or closing. Each group of the high-pressure hot air mechanisms includes a plurality of high-pressure hot air outlets 41 located on the bottom surface, left inner side, right inner side and under the top of the air-drying channel. The high-pressure hot air outlets in each group are connected by pipes to form a ring around the air-drying channel. Among them, the number of high-pressure hot air outlets on the bottom surface and under the top is 6 each, and the number of high-pressure hot air outlets on the left inner side and right inner side is 15 each. A hot air blower 6 is provided outside the air-drying channel. The hot air blower is an external part of the high-pressure hot air mechanism, and its temperature and air pressure are controlled by the control box. The hot air blower is connected to the high-pressure hot air mechanism through a pipe. A track support frame 12 is provided on the top of the air-drying channel, and a track 3 is welded and fixed under the track support frame. An opening 7 facilitating the passing of hanging parts is also provided on the top of the air-drying channel.

[0017] Preferably, the hot air blower is an industrial hot air blower, and multiple hot air blowers are provided. Each hot air blower is respectively connected to a group of high-pressure hot air mechanisms to ensure that the high-pressure hot air mechanism has sufficient air pressure and air output.

[0018] Preferably, the heat insulation layer is a high-temperature resistant heat insulation cotton. The heat insulation layer is attached to the outside of the air-drying channel, and the outside of the heat insulation layer is sealed with a steel plate to improve the heat insulation effect and the strength of the air-drying channel.

[0019] Preferably, support feet 11 are installed under the air-drying channel. The support feet are support feet with adjustable height to facilitate the connection of the track with the tracks of the spray passivation and sealing paint production lines.

[0020] Preferably, the high-pressure hot air outlet is a movable port with adjustable wind direction. The direction of the movable port is controlled by the control box to facilitate the adjustment of the wind direction.

[0021] When the drying device after spray passivation is in use, the workpieces after passivation and water washing still move forward on the track. After the workpieces enter the air-drying channel, most of the water on the workpieces will be blown off by the high-temperature and high-pressure gas, and the remaining small parts of water in areas such as corners and gaps that cannot be blown off will also be dried by the high-temperature gas. The blown-off water flows out through the water flow groove.

[0022] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A spray passivation post-drying device, characterized in that: The invention comprises a square air-drying channel, which is arranged behind the spray passivation process line, the front end of the air-drying channel is connected with the spray passivation process line, and the rear end is connected with the sealing paint process line. The bottom, left side, right side and top surface of the air-drying channel are provided with insulation layers, and two support beams parallel to each other are also provided on the bottom surface of the air-drying channel, and the support beams protrude upward to form a water flow trough on the bottom surface of the air-drying channel, and a glass fiber reinforced plastic grille is installed on the support beam. A plurality of groups of high-pressure hot air mechanisms controlled by a control box are installed on the air-drying channel, and each group of the high-pressure hot air mechanisms comprises a plurality of high-pressure hot air ports located on the bottom surface, the left inner side, the right inner side and under the top of the air-drying channel, a hot air blower is arranged outside the air-drying channel, and the hot air blower is connected to the high-pressure hot air mechanism through a pipeline, a track support frame is provided on the top of the air-drying channel, and a track is welded and fixedly installed below the track support frame, and an opening is also provided on the top of the air-drying channel for convenient passage of hangers.

2. The spray passivation post-drying device according to claim 1, characterized in that: The hot air blower is an industrial hot air blower, and multiple hot air blowers are provided, and each hot air blower is connected to a group of high-pressure hot air mechanisms.

3. The spray passivation post-drying device according to claim 1, characterized in that: The heat-insulating layer is high-temperature resistant heat-insulating cotton, and the heat-insulating layer is attached to the outside of the air-drying channel, and the outside of the heat-insulating layer is sealed with a steel plate.

4. The spray passivation post-drying device according to claim 1, characterized in that: Support feet are installed under the air-drying channel, and the support feet are support feet whose height can be freely adjusted.

5. The spray passivation post-drying device according to claim 1, characterized in that: The high-pressure hot air outlet is a movable outlet with adjustable wind direction.

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