Oil storage tank bottom desanding device

Abstract

The utility model discloses a desanding device for the tank bottom of an oil storage tank, which belongs to the technical field of desanding of the tank bottom of the oil storage tank and comprises a cleaning tank with a hollow bottom and an auger for cleaning sand-containing oil sludge accumulated at the tank bottom of the oil storage tank, the inner top wall of the cleaning tank is rotatably connected with the auger, and the outer side wall of the cleaning tank is sleeved with a limiting ring. Connecting rods are welded to the two ends of the bottom of the limiting ring, supporting rings are welded to the bottom faces of the two connecting rods, connecting plates are fixedly connected to the side faces of the supporting rings, sealing bearings are fixedly connected to the top faces of the connecting plates in an embedded mode, and threaded sleeves are in interference fit with inner rings of the sealing bearings and are in threaded connection with threaded rods; according to the oil storage tank bottom cleaning device, cleaning is conducted by being matched with the accumulation thickness of sand-containing oil sludge, and the cleaning effect of the desanding device on the tank bottom of an oil storage tank is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil tank bottom desanding, in particular to an oil tank bottom desanding device. Background Art

[0002] After an oil storage tank has been used for a long time, sand and sludge are easily accumulated on the bottom of the oil storage tank. A sand removal device is needed to clean the sand and sludge accumulated on the bottom of the oil storage tank. When using the existing sand removal device, an auger is usually used to convey the sand and sludge out of the oil storage tank. However, it is not convenient to control the distance between the bottom of the auger and the bottom of the oil storage tank, and it is not suitable for cleaning sand and sludge of different thicknesses, so as to improve the cleaning effect of the sand and sludge accumulated on the bottom of the oil storage tank.

[0003] For example (authorization publication number CN109092827A), a device for removing sand from the bottom of an oil tank belongs to the technical field of oil tank cleaning equipment. An outer shell is fixedly mounted on a base, which houses a front auger shaft. A movable frame is slidably mounted on the base on one side of the outer shell, and a rear auger shaft is mounted on the movable frame. The front and rear auger shafts are fixedly connected by a coupling. Two sets of stirring blades are mounted in a front-to-back pattern around the front end of the front auger shaft. A protective plate is provided at the bottom front end of the outer shell. The oil tank bottom desanding device solves the problems of the existing manual method with long cycle, high cost and susceptibility to toxic gas damage; the oil tank bottom desanding device can effectively shorten the cleaning cycle, reduce the removal cost, and prevent the toxic gas in the tank from causing harm to people; and no electric sparks will be generated during the working process, which can effectively avoid the accident of residual combustible gas explosion, and is particularly suitable for removing sediment from the bottom of large oil tanks. However, the device is not convenient for controlling the longitudinal position of the auger, and it is very easy for the auger to fail to contact the sand-containing sludge accumulated on the bottom of the oil tank, reducing the cleaning effect of the desanding device on the sand-containing sludge accumulated on the bottom of the oil tank. Utility Model Content

[0004] The purpose of the utility model is to provide a device for removing sand from the bottom of an oil storage tank to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for removing sand from the bottom of an oil storage tank, comprising a cleaning box with a hollow bottom and an auger for cleaning sand and sludge accumulated on the bottom of the oil storage tank, the inner top wall of the cleaning box is rotatably connected to the auger, the outer wall of the cleaning box is sleeved with a limit ring, connecting rods are welded at both ends of the bottom of the limit ring, support rings are welded on the bottom surfaces of the two connecting rods, connecting plates are fixedly connected to the side surfaces of the support rings, a sealed bearing is embedded and fixedly connected to the top surface of the connecting plate, the inner ring of the sealing bearing is interference fit with a threaded sleeve, the threaded sleeve is threadedly connected to a threaded rod, the top surface of the threaded rod is detachably connected to a rotating motor by bolts, the fixed end of the rotating motor is detachably connected to a fixing plate by bolts, and the side surface of the fixing plate is welded to the cleaning box.

[0006] Preferably, the bottom surface of the fixed plate is rotatably connected with the threaded rod, and a driving motor is installed on the top surface of the trash box.

[0007] Preferably, the output shaft of the driving motor is detachably connected with the auger through bolts, and a discharge hose is installed on the side surface of the trash box.

[0008] Preferably, the bottom surface of the auger is fixedly connected with a telescopic inner rod through bolts, and the telescopic inner rod is slidably connected with a telescopic outer rod with a square inner cavity in the side surface.

[0009] Preferably, the inner side wall of the telescopic outer rod is slidably connected with a square moving block, and the top surface of the moving block is welded with the telescopic inner rod.

[0010] Preferably, the bottom surface of the moving block is welded with a booster spring, and the end of the booster spring away from the moving block is welded with the inner bottom wall of the telescopic outer rod.

[0011] Preferably, the bottom surface of the telescopic outer rod is fixedly connected with a rotating plate, and the bottom surface of the rotating plate is fixedly connected with a scraper for scraping the sand-containing sludge adhered to the bottom of the tank.

[0012] Compared with the prior art, the technical effects and advantages of the oil tank bottom sand removal device are as follows:

[0013] The oil tank bottom sand removal device provides power through the driving motor, drives the output shaft of the driving motor to rotate during the rotation process, facilitates the transportation and cleaning of the sand-containing sludge accumulated on the bottom of the oil tank through the auger, and discharges the sand-containing sludge from the oil tank.

[0014] The oil tank bottom sand removal device drives the scraper to rotate during the transmission process through the rotation of the auger, realizes the scraping effect on the sand-containing sludge adhered to the bottom of the oil tank, improves the cleaning effect of the sand removal device on the bottom of the oil tank, provides support for the scraper through the rotating plate, provides elastic thrust through the booster spring, makes the cutting edge of the scraper in close contact with the bottom of the oil tank during the transmission process, and provides a buffering effect, prevents the extrusion force of the scraper and the bottom of the oil tank from being too large, causes the scraper to be damaged, and the moving block moves along the inner cavity of the telescopic outer rod, thereby facilitating the relative movement of the telescopic inner rod and the telescopic outer rod, improving the relative longitudinal movement stability of the scraper and the auger, and improving the structural stability of the device components. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0016] Figure 1 It is a structural schematic diagram of the present application;

[0017] Figure 2 It is a left view sectional view of the cleaning tank of the present application;

[0018] Figure 3 It is a structural schematic diagram of the present application; Figure 1 It is an enlarged view of structure A in the middle;

[0019] Figure 4 It is an enlarged view of structure B in the middle of the present application. Figure 2

[0020] Explanation of reference signs:

[0021] In the figure: 1, cleaning tank; 2, auger; 3, limiting ring; 4, connecting rod; 5, supporting ring; 6, connecting plate; 7, sealing bearing; 8, threaded sleeve; 9, threaded rod; 10, rotary motor; 11, driving motor; 12, discharge hose; 13, telescopic inner rod; 14, telescopic outer rod; 15, moving block; 16, booster spring; 17, rotating plate; 18, scraper; 19, fixed plate. Specific embodiments

[0022] In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, some technical features known in the art are not described in order not to obscure the present application.

[0023] Unless the direction indicated by the single definition is specified, the directions such as up, down, left, right, front, back, inside and outside mentioned in this paper are based on the directions such as up, down, left, right, front, back, inside and outside in the drawings of the present application, which are explained here.

[0024] The connection mode can adopt existing modes such as bonding, welding, bolt connection and the like, and the actual needs are accurate.

[0025] In order to solve the problem that the sand removing device at the bottom of the oil storage tank is inconvenient to control the longitudinal position of the auger during use, which leads to insufficient delivery of sand-containing oil slurry and reduces the cleaning effect of the bottom of the oil storage tank, please refer to​ Figures 1 to 4 The structure of the device body is that the bottom hollow cleaning tank 1 and the auger 2 for cleaning the sand sludge accumulated at the bottom of the oil tank are connected with the top wall of the cleaning tank 1 rotating, the outer side wall of the cleaning tank 1 is sleeved with a limiting ring 3, the limiting ring 3 is welded with a connecting rod 4 at both ends of the bottom, the two connecting rods 4 are provided to provide a connecting effect, the bottom surface of the two connecting rods 4 is welded with a supporting ring 5, the supporting ring 5 is provided to realize synchronous movement with the limiting ring 3, improve the movement stability of the supporting ring 5, the side surface of the supporting ring 5 is fixedly connected with a connecting plate 6, the supporting ring 5 is provided to provide a position fixing effect for the connecting plate 6, the top surface of the connecting plate 6 is fixedly connected with a sealing bearing 7, and the inner ring of the sealing bearing 7 is interference-fitted with a threaded sleeve 8.

[0026] The sealing bearing 7 is provided to fix the rotating position of the threaded sleeve 8, and simultaneously realize the relative rotation of the connecting plate 6 and the threaded sleeve 8, improve the structural stability of the device parts, the threaded sleeve 8 is threadedly connected with a threaded rod 9, the top surface of the threaded rod 9 is detachably connected with a rotating motor 10 through bolts, the fixed end of the rotating motor 10 is detachably connected with a fixed plate 19 through bolts, the rotating motor 10 is provided to provide power, so that the output shaft of the rotating motor 10 rotates to drive the threaded rod 9 to rotate, and then the threaded rod 9 moves downward along the threaded path of the threaded sleeve 8, the longitudinal position of the auger 2 is controlled during transmission, so that the auger 2 is adapted to the thickness of the sand sludge accumulated at the bottom of the oil tank, the sand sludge is contacted with the auger 2, and then the sand removal device is improved. The sand sludge accumulated at the bottom of the oil tank is transported and cleaned, the sand sludge is guided out of the oil tank, the side surface of the fixed plate 19 is welded with the cleaning tank 1, and the limiting ring 3 and the two connecting rods 4 are provided to provide the longitudinal position movement stability of the auger 2, and the structural stability of the device parts is improved.

[0027] The bottom surface of the fixing plate 19 is rotatably connected to the threaded rod 9, and a driving motor 11 is installed on the top surface of the cleaning box 1. The fixed end of the driving motor 11 is detachably connected to the top surface of the cleaning box 1 by a bolt, so as to fix the position of the driving motor 11. The output shaft of the driving motor 11 is detachably connected to the auger 2 by a bolt. The auger 2 is driven to rotate during the rotation of the output shaft of the driving motor 11, so as to clean the sand and sludge accumulated at the bottom of the oil storage tank. A discharge hose 12 is installed on the side of the cleaning box 1 so that the outer peripheral side of the discharge hose 12 is connected to the side of the cleaning box 1. The connection is convenient for guiding the sand-containing sludge transported by the auger 2 in the cleaning box 1 through the discharge hose 12. The bottom surface of the auger 2 is fixedly connected with a telescopic inner rod 13 by bolts to realize the synchronous rotation of the telescopic inner rod 13 and the auger 2. The side of the telescopic inner rod 13 is embedded with a telescopic outer rod 14 with a square inner cavity for sliding connection, which facilitates the relative position movement of the telescopic inner rod 13 and the telescopic outer rod 14. At the same time, the connection between the telescopic inner rod 13 and the telescopic outer rod 14 is sealed to prevent sand-containing sludge from flowing into the inner cavity of the telescopic outer rod 14 through the gap, thereby improving the structural stability of the device components.

[0028] The inner wall of the telescopic outer rod 14 is slidably connected with a square moving block 15. The telescopic outer rod 14 is provided to fix the moving path of the moving block 15 and prevent the moving block 15 and the telescopic outer rod 14 from rotating relative to each other. The top surface of the moving block 15 is welded to the telescopic inner rod 13, and the bottom surface of the moving block 15 is welded with a booster spring 16. The end of the booster spring 16 away from the moving block 15 is welded to the inner bottom wall of the telescopic outer rod 14. The bottom surface of the telescopic outer rod 14 is fixedly connected with a rotating plate 17. The bottom surface of the rotating plate 17 is fixedly connected with a The scraper 18 containing sand and oil sludge at the bottom of the tank is provided with elastic thrust by the set booster spring 16. During the transmission process, the rotating plate 17 drives the scraper 18 to contact the bottom of the oil storage tank. Driven by the rotation of the auger 2, the scraper 18 provides a rotating scraping effect on the sand and oil sludge adhering to the bottom of the oil storage tank, thereby improving the sand removal device's cleaning effect on the sand and oil sludge accumulated on the bottom of the oil storage tank. At the same time, the set booster spring 16 provides a buffering protection effect to prevent the blade of the scraper 18 from being squeezed against the bottom of the oil storage tank by excessive force, resulting in damage to the scraper 18.

[0029] The rotating motor 10 and the driving motor 11 are both existing technologies. Their working principles, sizes and models are irrelevant to the functions of this application, so they will not be described in detail. The control method of the present invention is controlled by a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0030] How it works

[0031] The oil tank bottom sand removing device, when used by the user, the driving motor 11 is started, the auger 2 is rotated, the sand-containing sludge accumulated in the bottom of the oil tank is transported and cleaned, the rotating motor 10 is started, the threaded rod 9 moves along the threaded path of the threaded sleeve 8, the longitudinal position of the auger 2 is controlled during transmission, the thickness of the sand-containing sludge is adapted, the sand-containing sludge is fully transported and cleaned by the auger 2, the cleaning effect of the device on the bottom of the oil tank is improved, the limiting ring 3 and the two connecting rods 4 are arranged, and the relative longitudinal movement stability of the auger 2 is improved.

[0032] The auger 2 is rotated, the telescopic inner rod 13 is rotated, the scraper 18 is rotated with the telescopic inner rod 13 as the center under the drive of the rotating plate 17, the sand-containing sludge adhered to the bottom of the oil tank is provided with rotating cleaning action, the rotating plate 17 is arranged to provide support for the scraper 18, the booster spring 16 is arranged to provide elastic thrust, so that the extrusion degree of the blade of the scraper 18 and the bottom of the oil tank is strengthened, and at the same time, the buffer protection effect is provided, so that the scraper 18 is prevented from being damaged due to excessive extrusion degree, and the structural stability of the device parts is improved.

[0033] It should be noted that in this text, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the statement "includes a limited element" does not exclude the presence of additional identical elements in the process, method, article or equipment including the element.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for removing sand from the bottom of an oil storage tank, comprising a cleaning box (1) with a hollow bottom and an auger (2) for cleaning sand-containing sludge accumulated on the bottom of the oil storage tank, characterized in that: The inner top wall of the cleaning box (1) is rotatably connected to the auger (2), and the outer side wall of the cleaning box (1) is sleeved with a limit ring (3), and connecting rods (4) are welded to both ends of the bottom of the limit ring (3), and support rings (5) are welded to the bottom surfaces of the two connecting rods (4), and the side surfaces of the support rings (5) are fixedly connected to a connecting plate (6); A sealed bearing (7) is embedded and fixedly connected to the top surface of the connecting plate (6); the inner ring of the sealed bearing (7) is interference-fitted with a threaded sleeve (8); the threaded sleeve (8) is threadedly connected to a threaded rod (9); the top surface of the threaded rod (9) is detachably connected to a rotating motor (10) via bolts; the fixed end of the rotating motor (10) is detachably connected to a fixed plate (19) via bolts; and the side surface of the fixed plate (19) is welded to the cleaning box (1).

2. The oil tank bottom desanding device according to claim 1, characterized in that: The bottom surface of the fixed plate (19) is rotatably connected to the threaded rod (9), and a driving motor (11) is installed on the top surface of the dirt cleaning box (1).

3. The oil tank bottom desanding device according to claim 2, characterized in that: The output shaft of the driving motor (11) is detachably connected to the auger (2) via bolts, and a discharge hose (12) is installed on the side of the dirt cleaning box (1).

4. The oil tank bottom desanding device according to claim 3, characterized in that: The bottom surface of the auger (2) is fixedly connected to a telescopic inner rod (13) via bolts, and a telescopic outer rod (14) having a square inner cavity is embedded and slidably connected to the side surface of the telescopic inner rod (13).

5. The oil tank bottom desanding device according to claim 4, characterized in that: A square moving block (15) is slidably connected to the inner side wall of the telescopic outer rod (14), and the top surface of the moving block (15) is welded to the telescopic inner rod (13).

6. The oil tank bottom desanding device according to claim 5, characterized in that: A boost spring (16) is welded to the bottom surface of the moving block (15), and one end of the boost spring (16) away from the moving block (15) is welded to the inner bottom wall of the telescopic outer rod (14).

7. The oil tank bottom desanding device according to claim 6, characterized in that: The bottom surface of the telescopic outer rod (14) is fixedly connected to a rotating plate (17), and the bottom surface of the rotating plate (17) is fixedly connected to a scraper (18) for scraping off sand-containing oil sludge adhering to the bottom of the tank.

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