CN204565921U - Large tank wheel abrator - Google Patents

Abstract

The utility model discloses a shot blasting cleaning device for a large tank body, which belongs to the technical field of shot blasting treatment and is mainly used for solving the problem of low cleaning efficiency of attachments such as burrs, rust spots, oxide scales and welding slag on the surface of a large tank body and the formation of a large tank body. Problems such as stress concentration and low surface quality during the welding process; the device mainly includes a shot blasting machine, a shot blasting chamber, a shot pool, a screw conveyor, a work trolley and a connection port; the work trolley carries a large tank, and the It is transported to the shot blasting room and walks slowly, and the high-speed projectiles fired by the shot blaster hit the slow-moving and rotating large tank body, thereby completing the shot blasting cleaning operation. When the utility model is working, four shot blasting devices work at the same time, the working efficiency is high, the cleaning effect is good, the surface quality of the large tank body has been greatly improved, and it is also beneficial to the surface protection and life extension of the large tank body in the later stage. Reduce the labor intensity of workers and improve the working environment of workers.

Description

Large tank shot blasting device

technical field

The utility model belongs to the technical field of shot blasting, and relates to a shot blasting cleaning device, in particular to a large tank shot blasting cleaning device.

Background technique

Large tanks are the main tools for storing compressed gases, liquids, powders and other substances, and they are in great demand in terms of transportation and material storage. If the burrs, rust spots, oxide scales, welding slag and other attachments on the surface of large tanks are not cleaned well, the stress caused by sheet metal bending or welding cannot be effectively eliminated, which will seriously affect its service life. accidents such as casualties and material spills.

Due to the long-term storage of large tanks, rust spots and other phenomena will appear on the surface. If it is not cleaned and protected in time, the loose and porous rust spots will absorb water in a humid environment, which will accelerate the rate of oxidation and corrosion. This will not only cause waste of materials, but also reduce the quality of large tanks and affect later use.

After the preparation of large tanks, if the burrs, rust spots, scale, welding slag and other attachments on the surface are not effectively cleaned, the coated protective paint will fall off in a short period of time, and then the metal materials will be exposed to the air , in the later use process, it is easy to rust, which affects its internal quality and aesthetics.

The body of a large tank is generally rolled from sheet metal, and the end part is explosively shaped or stamped, and finally connected together by welding. The large tanks prepared by this method have stress concentration due to various reasons. If heat treatment is used to relieve stress, the cost is high, the process is complicated, and the internal quality of large tanks will also be affected to a certain extent. If the natural aging method is used to eliminate stress, the period is too long, which affects timely use, and in the process of natural aging, the surface of the large tank needs certain protection, which increases the cost.

After the preparation of large tanks, if there are attachments such as burrs, rust spots, scale, welding slag, etc., the more traditional method is to use pickling and manual grinding. Pickling can effectively clean the burrs, rust and scale on the surface of large tanks, but it pollutes the environment, the working environment of workers is harsh, and the surface of large tanks is corroded to a certain extent, which affects the internal quality; manual polishing, although the cleaning effect It is better, but it needs to build scaffolding, which is time-consuming and labor-intensive. The working environment of the workers is extremely bad. There is not only dust but also noisy noise pollution, which seriously threatens the health of workers. Moreover, the efficiency is low, the labor cost is high, and the process is uneconomical.

Contents of the invention

The purpose of the utility model is to provide a high-efficiency shot blasting cleaning device for large-scale tanks, which is mainly used to solve the problem of low cleaning efficiency of large-scale tank surface burrs, rust spots, oxide scales, welding slag and other attachments, and the formation and welding process of large-scale tanks. Problems such as stress concentration and low surface quality in the

The technical scheme adopted by the utility model to solve the technical problems is: a large-scale tank body shot blasting cleaning device, whose structure includes a shot blasting device, a shot blasting chamber, a shot pool, a screw conveyor, a work trolley and a connection port; The working trolley includes a steel wheel, a steel rail, a chassis, a motor, a row chain, a power roller, a connecting shaft, a horizontal shaft and a protective cover; the connection port includes a shot separation connection port and a dust removal and ventilation connection port; the shot blasting The lower side of the chamber is provided with a pill pool, and the lower side of the pill pool is provided with a screw conveyor. One end of the screw conveyor is provided with a shot material separation connection port. There are two shot blasting machines on the side and the upper right side respectively. Viewed from the same viewing direction, the rotating directions of the shot blasting machines on different sides of the shot blasting chamber are opposite when they work; a beam is set on the upper side of the pill pool; There are motors, brackets, power rollers and connecting shafts on the side, and the protective cover is on the upper side of the motor, bracket, power rollers and connecting shafts. There are three horizontal shafts on the lower side of the chassis, and steel wheels are installed on both sides of the horizontal shafts. The steel wheel is in direct contact with the rail, and the horizontal shaft is connected with the motor on the lower side of the chassis by a row of chains. The motor provides power to drive the work trolley to run slowly on the steel rail; there are six power rollers on the left and right sides of the work trolley, each three Each power roller is driven by a motor, and the friction between the large tank body and the power roller drives the large tank body to rotate around its own axis; in order to meet the requirements of large tanks of different sizes, prevent the pellets from falling into the power roller and the large tank body Between the tanks, the size of the protective cover can be replaced, and the distance between the protective cover and the large tank is guaranteed to be within 2mm. The working trolley carries a large tank, transports it to the shot blasting room and walks slowly, and the high-speed projectiles fired by the shot blaster blast the slow-moving and rotating large tank to complete the shot blasting operation.

The beneficial effects of the utility model are: 1. The design of the dust-removing and air-venting connection port prepares for creating a negative pressure environment in the shot blasting chamber, reduces the leakage of dust, and improves the working environment of workers. 2. Set 4 shot blasters, which increases the effective blasting area, which is beneficial to the cleaning of larger tanks and has higher work efficiency. 3. The design of the pellet pool and the screw conveyor prepares for the separation and reuse of pellets, saving resources and reducing the waste of pellets. 4. The large tank moves slowly under the action of the working trolley, and at the same time, the power provided by the friction force rotates around its own axis, which reduces the manpower and labor intensity of the workers. 5. The blasting radiation angle of the shot blasting devices on both sides of the device is greater than 180 degrees, with high working efficiency and good cleaning effect, and can effectively remove burrs, rust spots, oxide scales, welding slag and other attachments on the surface of large tanks and eliminate scratches; the surface quality has been greatly improved, and the large tank body has the original color of the base; the surface structure has also been improved, eliminating the stress concentration of the large tank body, and forming a dense layer on the surface of the large tank body The hardened layer improves the fatigue resistance and corrosion resistance of large tanks; the large tanks treated by blasting remove surface dirt and small pits appear on the surface, which improves the adhesion of coating materials and is also conducive to Surface protection and life extension for large tanks.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model.

Fig. 2 is a schematic diagram of another perspective structure of the utility model.

Fig. 3 is a front structural schematic view of the utility model.

FIG. 4 is a schematic view of the right view of FIG. 3 .

In the figure: 1 shot material separation connection port, 2 screw conveyor, 3 shot blasting chamber, 4 shot collection tank, 5 shot blaster, 6 steel rail, 7 dust removal and ventilation connection port, 8 motor, 9 transmission belt, 10 power roller, 11 connection Shaft, 12 protective cover, 13 large tank body, 14 beam, 15 chassis, 16 steel wheel, 17 row chain, 18 motor, 19 shot blasting line, 20 bracket, 21 horizontal shaft.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and examples, wherein the schematic implementation and description are only used to explain the utility model, but not as a limitation to the utility model.

As shown in Figures 1 to 4, the large-scale tank shot blasting cleaning device has a structure including a shot blasting device 5, a shot blasting chamber 3, a pill pool 4, a screw conveyor 2, a work trolley and a connection port; the described work The trolley includes a steel wheel 16, a steel rail 6, a chassis 15, a motor 18, a chain 17, a power roller 10, a connecting shaft 11, a transverse shaft 21 and a protective cover 12; Air suction connection port 7; the lower side of the shot blasting chamber 3 is provided with a pill pool 4, and the lower side of the pill pool 4 is provided with a screw conveyor 2, and one end of the screw conveyor 2 is provided with a shot material separation connection port 1, and the shot blasting chamber There is a dust removal and ventilation connection port 7 on the upper side of the shot blasting chamber 3, and two blasting devices 5 are respectively arranged on the upper left side and the upper right side of the shot blasting chamber 3. When viewed from the same viewing direction, the blasting devices 5 located on different sides of the shot blasting chamber 3 are working. The direction of rotation is opposite; the upper side of the pill pool 4 is provided with a crossbeam 14; the left and right sides of the chassis 15 are provided with a motor 8, a bracket 20, a power roller 10, a connecting shaft 11, and a protective cover 12 is installed on the motor 8, the bracket 20, On the upper side of the power roller 10 and the connecting shaft 11, three horizontal shafts 21 are arranged on the lower side of the chassis 15. Steel wheels 16 are installed on both sides of the horizontal shafts 21. The steel wheels 16 are in direct contact with the rail 6, and the horizontal shafts 21 are in contact with the chassis. The motor 18 on the lower side of the 15 is connected with the row chain 17, and the motor 18 provides power to drive the work trolley to run slowly on the rail 6; the left and right sides of the work trolley respectively have six power rollers 10, and every three power rollers 10 Driven by a motor 8, the friction between the large tank body 13 and the power roller 10 drives the large tank body 13 to rotate around its own axis; in order to meet the requirements of large tank bodies 13 of different sizes, prevent the pellets from falling into the power roller 10 and the large tank body 13, the size of the protective cover 12 can be replaced, and the distance between the protective cover 12 and the large tank body 13 is guaranteed to be within 2mm.

Before the shot blasting operation, replace the appropriate protective cover 12 according to the outer diameter of the large tank body 13, adjust the blasting range of the shot blaster 5, and debug the above equipment. Place the large tank body 13 on the work trolley, start the work trolley, the screw conveyor 2, the dust removal and ventilation equipment and the shot blasting device 5 in sequence, and the large tank body 13 is driven slowly along the rail 6 under the load-bearing drive of the work trolley At the same time, the large-scale tank body 13 relies on the friction between the power roller 10 and the large-scale tank body 13 to rotate around its own axis. 13, the generated dust is discharged through other equipment connected to the dust removal and ventilation connection port 7, and the projectiles are scattered in the pill pool 4 under the obstruction of the inner wall of the shot blasting chamber 3, and the screw conveyor 2 will collect the pill pool 4 The projectiles in the machine are transported to the shot separation connection port 1, separated by other equipment and then enter the throwing operation again. Large tank body 13 finishes shot blasting cleaning operation exactly in above-mentioned process.

Through the above-described embodiments, the attachments such as burrs, rust spots, scale, and welding slag on the surface of the large tank body 13 have been effectively cleaned up, and scratches have also been eliminated; the surface quality has been greatly improved, and the large tank body 13 is the original color of the matrix; the surface structure has also been improved, eliminating the stress concentration of the large tank 13, and forming a dense hardened layer on the surface of the sheet metal, improving the fatigue resistance and corrosion resistance of the large tank 13 ; The large-scale tank body 13 processed by throwing not only removes the attachments on the surface, but also has tiny pits on the surface, which improves the adhesion of the coating material and is beneficial to the surface protection and life extension of the large-scale tank body 13.

The above descriptions are only examples of the utility model, and are not intended to limit the patent scope of the utility model. All equivalent structures or equivalent transformations made by using the abstract, instructions and drawings of the utility model, or directly or indirectly used in other related technical fields, are all included in the patent protection scope of the utility model.

Claims (4)

1. large tank wheel abrator, is characterized in that: comprise impeller head, shot blast room, Ji Wanchi, auger conveyor, boom truck and connector; Described boom truck comprises steel wheel, rail, chassis, motor, row chain, live roll, connecting axle, transverse axis and protective cover; Described connector comprises ball material and is separated connector and dedusting exhausting connector; The downside being provided with Ji Wanchi, Ji Wanchi on the downside of described shot blast room is provided with auger conveyor, one end of auger conveyor is provided with ball material and is separated connector, the positive upside of shot blast room is provided with dedusting exhausting connector, and shot blast room upper left side and upper right side arrange 2 impeller heads respectively; The upside of Ji Wanchi is provided with crossbeam; The described left and right sides, chassis is provided with motor, support, live roll, connecting axle, protective cover is in the upside of motor, support, live roll and connecting axle, the downside on chassis is provided with transverse axis, and the both sides of transverse axis are provided with steel wheel, and transverse axis is connected with row chain with the motor of chassis underside.

2. large tank wheel abrator according to claim 1, is characterized in that: boom truck each side have six live rolls, every three live rolls are driven by a motor.

3. large tank wheel abrator according to claim 1, is characterized in that: the size of protective cover can be changed, and the distance between guarantee protective cover and large tank is within 2mm.

4. large tank wheel abrator according to claim 1, is characterized in that: observe from same line of vision, be positioned at shot blast room not homonymy impeller head work time direction of rotation contrary.