Large oil tank sand blasting derusting equipment

Abstract

The invention relates to large oil tank sand blasting derusting equipment, and belongs to the technical field of derusting equipment, the large oil tank sand blasting derusting equipment comprises a rail assembly, the rail assembly comprises a rail rod, the rail rod surrounds the outer side of an oil tank, a sliding limiting mechanism is installed at the bottom of the rail assembly, and a driving device is installed on the outer side of the rail rod; the sand blasting assembly comprises a nozzle, the nozzle is used for carrying out sand blasting and rust removal operation on the outer side surface of the oil tank, and the nozzle is connected to a driving device; the sliding limiting mechanism can enable the rail assembly to linearly move in the axial direction of the oil tank, and the driving device can slide along the rail rod. The driving device slides on the outer side of the rail rod, so that the nozzle is driven to conduct sand blasting and rust removing operation on the outer side of the oil tank in the direction of the rail rod, the distance between the nozzle and the corresponding position of the outer side surface of the oil tank is the same, the consistency of sand blasting on the surface of the oil tank can be better controlled, and the sand blasting and rust removing effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of rust removal equipment, and in particular relates to sandblasting rust removal equipment for large oil tanks. Background Art

[0002] Oil storage tanks, referred to as oil tanks or storage tanks, are large containers with regular shapes used to store oil products. They can be divided into metal oil tanks and non-metal oil tanks according to different construction materials. Most metal oil tanks are steel oil tanks, which are commonly used in oil depots; non-metal oil tanks are also called "earth oil tanks". Due to poor safety risks, they have been gradually eliminated since the 1990s.

[0003] Crude oil storage tanks are key equipment in the storage and transportation process of petroleum and petrochemical enterprises. Oil storage tanks operate under natural environment and liquid level changes, and are affected by many adverse factors, which inevitably cause various damages. Because they are in the outdoor environment all year round, steel oil tanks are very prone to rust, and the rust of the tank body has a great impact on its service life. Therefore, the problem of rust removal and painting of the tank body is unavoidable. Usually, each oil tank needs to be rust-proofed on the inner and outer walls of the entire tank every 4 to 6 years.

[0004] The commonly used treatment method at present is to build scaffolding or hanging basket and manually complete the rust removal and painting operations. This treatment method has low work efficiency and high labor intensity.

[0005] The inventor of the present application discovered that the above technology has at least the following technical problems during the process of removing rust from oil tanks:

[0006] 1. Manual rust removal depends on manual control of the rust removal process, and stability and consistency are difficult to control;

[0007] 2. In addition, manual rust removal requires rust removal around the oil tank in circles, multiple changes of position and adjustment of workstation gaps. The processing position is relatively limited and it is inconvenient to adjust. For this reason, we propose a large oil tank sandblasting rust removal equipment to solve the above problems. Summary of the invention

[0008] In response to the above problems, the present invention drives the nozzle to sandblast and remove rust on the outside of the oil tank along the direction of the track rod by sliding the driving device on the outside of the track rod, wherein the two groups of track rods and the oil tank have the same curvature, and the distances between the nozzle and the corresponding positions on the outer surface of the oil tank are the same, which can better control the consistency of sandblasting on the surface of the oil tank and improve the effect of sandblasting and rust removal.

[0009] In order to overcome the problems existing in the prior art, the present invention provides the following technical solutions:

[0010] A large oil tank sandblasting and rust removal device, which is arranged on the oil tank, comprises:

[0011] A track assembly, the track assembly comprising a track rod, the track rod surrounding the outside of the oil tank, a sliding limit mechanism installed at the bottom of the track assembly, and a driving device installed on the outside of the track rod;

[0012] A sandblasting assembly, the sandblasting assembly includes a nozzle, the nozzle performs sandblasting and rust removal operation on the outer surface of the oil tank, and the nozzle is connected to the driving device;

[0013] The sliding limiting mechanism can make the track assembly move linearly along the axial direction of the oil tank, and the driving device can slide along the track rod.

[0014] Furthermore, the track assembly is configured into two groups, the track assemblies are arranged at intervals in the axial direction of the oil tank, the track rods are arranged as two groups of symmetrical semicircular guide rails, and blocking blocks are arranged at the upper and lower ends of the track rods. The curvature of the track rods is the same as the curvature of the oil tank.

[0015] Furthermore, the bottom of the oil tank is fixedly mounted on the base via a support seat, the bottom of the track assembly is mounted on the sliding limit mechanism via a column, and the sliding limit mechanism is also mounted on the base.

[0016] Furthermore, two groups of pressurizers are arranged on both sides of the base, and pipelines are arranged outside the pressurizers. The pipelines are connected with the nozzles through a driving device, and the pipelines are flexible pipe structures.

[0017] Furthermore, the sliding limiting mechanism comprises a sliding seat and a limiting plate, the sliding seat is arranged inside the base, the limiting plate is arranged at the bottom of the column, a sliding block is arranged at the bottom of the limiting plate, and the sliding block is slidably installed in the sliding seat.

[0018] Furthermore, grooves are arranged on both sides of the inner wall of the sliding seat, balls are placed in the grooves, and the balls are fitted between the slider and the sliding seat.

[0019] Furthermore, one end of the limit plate extends laterally, and a threaded hole is provided at the extended end of the limit plate. A limit bolt is installed on the limit plate through the threaded hole. A plurality of locking blocks are arranged at intervals on the slide seat, and the limit bolt passes through the limit plate and fits in the locking block.

[0020] Furthermore, the gaps of the locking blocks correspond to the effective area of ​​the sandblasting assembly, and the locking blocks are evenly spaced along the axial direction of the oil tank.

[0021] Furthermore, the driving device includes a side sliding frame, which is a hollow square groove structure. The side sliding frame is fixed with a driving motor through a bracket. A gear is rotatably installed in the middle of the side sliding frame, and the driving motor is connected to the gear shaft through a belt.

[0022] Furthermore, a rack is provided on the inner side of the track rod, and the rack is meshed with the gear. Two groups of grooves are provided on the inner side of the side sliding frame. Guide blocks are provided on both sides of the track rod. The shape of the protrusions of the guide blocks corresponds to the grooves. The guide blocks are slidably installed in the grooves, and the track rod slides in the side sliding frame through the guide blocks.

[0023] Beneficial effects of the present invention:

[0024] 1. The driving device of the present invention can slide on the outside of the track rod, thereby driving the nozzle to perform sandblasting and rust removal on the outside of the oil tank along the direction of the track rod. The track rod is two groups of symmetrical circular rings, wherein blocking blocks are arranged at the upper and lower ends of the track rod, wherein the two groups of track rods have the same curvature as the oil tank, and the distance between the nozzle and the corresponding position of the outer surface of the oil tank is the same, which can better control the consistency of sandblasting on the surface of the oil tank and improve the effect of sandblasting and rust removal.

[0025] 2. When driving is required, the gear is driven to rotate by the driving motor, and then the gear is meshed with the rack to realize the sliding movement of the driving device on the outside of the track rod, driving the position of the nozzle spray gun to move, so as to realize sandblasting and rust removal at different positions on the surface of the oil tank.

[0026] 3. The position of the sandblasting device can be moved by sliding inside the slide seat through the linkage between the column and the slider position, which can better cover more oil tank positions. Grooves are provided on both sides of the inner side of the slide seat, and corresponding positions are provided with balls that roll in the slide seat instead of sliding, thereby improving the smoothness of the movement of the above-mentioned sandblasting device. The limit bolts are passed through the threaded holes of the limit plate and screwed into the locking block to fix the position of the column and the upper sandblasting device. The gap of each group of locking blocks corresponds to the effective sandblasting area of ​​the sandblasting device. The outer side of the oil tank is equally divided into several groups to perform grouped sandblasting actions to ensure the consistency and stability of sandblasting and rust removal.

[0027] Other features and advantages of the present invention will be described in the following description, and partly become obvious from the description, or be understood by implementing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1A side structural diagram of a large oil tank sandblasting and rust removal device according to an embodiment of the present invention is shown;

[0030] Figure 2 A front view structural diagram of a large oil tank sandblasting and rust removal device according to an embodiment of the present invention is shown;

[0031] Figure 3 A partial enlarged view of the sliding limit mechanism of the large oil tank sandblasting and rust removal equipment according to an embodiment of the present invention is shown;

[0032] Figure 4 A side cross-sectional view showing a connection structure of a track bar and a drive device of a large oil tank sandblasting and rust removal device according to an embodiment of the present invention;

[0033] Figure 5 A top cross-sectional view of the connection structure of the track rod and the drive device of the large oil tank sandblasting and rust removal equipment according to an embodiment of the present invention is shown.

[0034] In the figure

[0035] 1-base, 2-oil tank, 3-support seat, 4-sliding limit mechanism, 41-slide seat, 42-limit plate, 43-limit bolt, 44-locking block, 45-slider, 46-ball, 5-track rod, 6-pressurizer, 7-column, 8-drive device, 81-side sliding frame, 82-drive motor, 83-belt, 84-gear, 85-guide block, 9-nozzle, 10-pipeline, 11-rack. DETAILED DESCRIPTION

[0036] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that the terms "first", "second" etc. in the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged in appropriate circumstances, so that the embodiments of the present application described here. In the present application, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" etc. are based on the orientation or positional relationship shown in the accompanying drawings.

[0039] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0040] like Figure 1 A large oil tank sandblasting and rust removal device is arranged on the oil tank 2, comprising: a track assembly, the track assembly comprises a track rod 5, the track rod 5 surrounds the outside of the oil tank 2, a sliding limit mechanism 4 is installed at the bottom of the track assembly, and a driving device 8 is installed on the outside of the track rod 5; a sandblasting assembly, the sandblasting assembly comprises a nozzle 9, the nozzle 9 performs sandblasting and rust removal on the outer surface of the oil tank 2, and the nozzle 9 is connected to the driving device 8; the sliding limit mechanism 4 can make the track assembly move linearly along the axial direction of the oil tank 2, and the driving device 8 can slide along the track rod 5. Thereby driving the nozzle 9 to perform sandblasting and rust removal on the outer side of the oil tank 2 along the direction of the track rod 5.

[0041] The track assembly is configured as two groups, the track assembly is arranged at intervals in the axial direction of the oil tank 2, the track rod 5 is arranged as two groups of symmetrical semicircular guide rails, the upper and lower ends of the track rod 5 are provided with blocking blocks, and the curvature of the track rod 5 is the same as the curvature of the oil tank 2. The distance between the nozzle 9 and the corresponding position of the outer surface of the oil tank 2 can be made the same, the consistency of the sandblasting on the surface of the oil tank 2 can be better controlled, and the effect of sandblasting and rust removal can be improved.

[0042] like Figure 2 , oil tank 2, the oil tank 2 is the exterior that needs to be cleaned, wherein the bottom of the oil tank 2 is fixedly mounted above the base 1 through a support seat 3; the bottom of the track assembly is mounted on the sliding limit mechanism 4 through a column 7, and the sliding limit mechanism 4 is also mounted on the base 1.

[0043] Two groups of pressurizers 6 are arranged on both sides of the base 1, and a pipeline 10 is arranged outside the pressurizer 6, and the pipeline 10 is connected with the nozzle 9 through the driving device 8, and the pipeline 10 is a flexible pipe structure. The pressurizer 6 and the pipeline 10 are used to provide raw materials for the shot peening of the nozzle 9, wherein the pipeline 10 is a retractable hose structure, which can adapt to the different length requirements caused by the sliding position of the driving device 8 on the track rod 5.

[0044] The above device can achieve uniform rust removal of the outer ring of the oil tank, but it depends on the placement of the track rod 5, the processing position is relatively limited, and it is inconvenient to adjust, so a sliding limit mechanism 4 is designed. Figure 3 The specific structure of the sliding limit mechanism 4 is as follows: the sliding limit mechanism 4 comprises a slide seat 41 and a limit plate 42. The slide seat 41 is arranged inside the base 1, the limit plate 42 is arranged at the bottom of the column 7, a slider 45 is arranged at the bottom of the limit plate 42, and the slider 45 is slidably installed in the slide seat 41. The column 7 is linked with the slider 45 to realize the movement of the sandblasting device position by sliding inside the slide seat 41, which can better cover more oil tank positions and improve the processing efficiency.

[0045] Grooves are provided on both sides of the inner wall of the slide seat 41, and balls 46 are placed in the grooves. The balls 46 are fitted between the slider 45 and the slide seat 41. The corresponding positions are provided with balls 46 that roll in the slide seat 41 instead of sliding, thereby improving the smoothness of the movement of the above-mentioned sandblasting device and improving the stability of use.

[0046] One end of the limit plate 42 extends laterally, and a threaded hole is provided at the extended end of the limit plate 42. The limit bolt 43 is installed on the limit plate 42 through the threaded hole. A plurality of groups of locking blocks 44 are arranged at intervals on the slide seat 41. The limit bolt 43 passes through the limit plate 42 and fits in the locking block 44. The position of the column 7 and the sandblasting device above is fixed.

[0047] The gaps of the locking blocks 44 correspond to the effective sandblasting area of ​​the sandblasting assembly, and the locking blocks 44 are evenly spaced along the axial direction of the oil tank 2. The gaps of each group of locking blocks 44 correspond to the effective sandblasting area of ​​the sandblasting device, and the outer side of the oil tank 2 is equally divided into several groups to perform grouped sandblasting to ensure the consistency and stability of sandblasting and rust removal.

[0048] like Figure 4 The driving device 8 includes a side sliding frame 81, which is a hollow square groove structure. The side sliding frame 81 is fixed with a driving motor 82 through a bracket. A gear 84 is rotatably installed in the middle of the side sliding frame 81, and the driving motor 82 is connected to the gear 84 shaft through a belt 83.

[0049] like Figure 5The track bar 5 is provided with a rack 11 inside, and the rack 11 is meshed with the gear 84. Two groups of grooves are provided inside the side sliding frame 81. Guide blocks 85 are provided on both sides of the track bar 5. The protruding shape of the guide blocks 85 corresponds to the grooves. The guide blocks 85 are slidably installed in the grooves. The track bar 5 slides in the side sliding frame 81 through the guide blocks 85. The sliding of the guide blocks 85 in the side sliding frame 81 guides the sliding action of the driving device 8 on the outside of the track bar 5, thereby improving the accuracy and stability of the structure.

[0050] When driving is required, the gear 84 is driven to rotate by the driving motor 82, and the gear 84 is meshed with the rack 11 to realize the sliding movement of the driving device 8 on the outside of the track rod 5, driving the position of the nozzle 9 to move, so as to realize sandblasting and rust removal at different positions on the surface of the oil tank 2.

[0051] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A large oil tank sandblasting and rust removal device, arranged on an oil tank (2), characterized in that: include: A track assembly, the track assembly comprising a track rod (5), the track rod (5) surrounding the outside of the oil tank (2), a sliding limit mechanism (4) being installed at the bottom of the track assembly, and a driving device (8) being installed on the outside of the track rod (5); A sandblasting assembly, the sandblasting assembly comprising a nozzle (9), the nozzle (9) performs sandblasting and rust removal operations on the outer surface of the oil tank (2), and the nozzle (9) is connected to a driving device (8); The sliding limit mechanism (4) can enable the track assembly to move linearly along the axial direction of the oil tank (2), and the driving device (8) can slide along the track rod (5).

2. The large oil tank sandblasting and rust removal equipment according to claim 1, characterized in that: The track assembly is configured into two groups, the track assemblies are arranged at intervals in the axial direction of the oil tank (2), the track rod (5) is arranged as two groups of symmetrical semicircular guide rails, blocking blocks are arranged at the upper and lower ends of the track rod (5), and the curvature of the track rod (5) is the same as the curvature of the oil tank (2).

3. The large oil tank sandblasting and rust removal equipment according to claim 1, characterized in that: The bottom of the oil tank (2) is fixedly mounted on the base (1) via a support seat (3), the bottom of the track assembly is mounted on the sliding limit mechanism (4) via a column (7), and the sliding limit mechanism (4) is also mounted on the base (1).

4. The large oil tank sandblasting and rust removal equipment according to claim 3, characterized in that: Two groups of pressurizers (6) are arranged on both sides of the base (1), and a pipeline (10) is arranged outside the pressurizer (6). The pipeline (10) is connected to the nozzle (9) through a driving device (8), and the pipeline (10) is a flexible pipe structure.

5. The large oil tank sandblasting and rust removal equipment according to claim 3, characterized in that: The sliding limiting mechanism (4) comprises a sliding seat (41) and a limiting plate (42); the sliding seat (41) is arranged inside the base (1); the limiting plate (42) is arranged at the bottom of the column (7); a sliding block (45) is arranged at the bottom of the limiting plate (42); and the sliding block (45) is slidably installed in the sliding seat (41).

6. The large oil tank sandblasting and rust removal equipment according to claim 5, characterized in that: Grooves are arranged on both sides of the inner wall of the slide seat (41), and balls (46) are placed in the grooves. The balls (46) are fitted between the slider (45) and the slide seat (41).

7. The large oil tank sandblasting and rust removal equipment according to claim 5, characterized in that: One end of the limiting plate (42) extends laterally, and a threaded hole is provided at the extending end of the limiting plate (42). A limiting bolt (43) is installed on the limiting plate (42) through the threaded hole. A plurality of groups of locking blocks (44) are arranged at intervals on the sliding seat (41), and the limiting bolt (43) passes through the limiting plate (42) and is matched in the locking block (44).

8. The large oil tank sandblasting and rust removal equipment according to claim 7, characterized in that: The gaps of the locking blocks (44) correspond to the effective area of ​​the sandblasting assembly for sandblasting, and the locking blocks (44) are evenly spaced along the axial direction of the oil tank (2).

9. The large oil tank sandblasting and rust removal equipment according to claim 1, characterized in that: The driving device (8) comprises a side sliding frame (81), the side sliding frame (81) is a hollow square groove structure, the side sliding frame (81) is fixedly mounted with a driving motor (82) via a bracket, a gear (84) is rotatably mounted in the middle of the side sliding frame (81), and the driving motor (82) is connected to the gear (84) shaft via a belt (83).

10. The large oil tank sandblasting and rust removal equipment according to claim 9, characterized in that: A rack (11) is arranged inside the track rod (5), and the rack (11) is meshedly connected with a gear (84). Two groups of grooves are arranged inside the side sliding frame (81). Guide blocks (85) are arranged on both sides of the track rod (5), and the protrusions of the guide blocks (85) correspond to the shapes of the grooves. The guide blocks (85) are slidably installed in the grooves, and the track rod (5) slides in the side sliding frame (81) through the guide blocks (85).

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