Spiral sand washer for cleaning quartz sand

Abstract

The invention provides a spiral sand washer for cleaning quartz sand, and belongs to the technical field of quartz sand production equipment, the spiral sand washer comprises a cleaning tank and a spiral blade, and a gap filling strip sleeves the spiral blade along the spiral direction of the spiral blade, the gap filling strip comprises a plurality of rubber strips which are sequentially distributed in the spiral direction of the spiral blade, and each rubber strip is provided with two elastic bags. The gap filling strip is arranged on the outer side of the spiral blade in a sleeving mode, the elastic bag capable of being pressurized to expand is arranged on the gap filling strip, and the gap between the spiral blade and the cleaning tank can be adjusted by adjusting the expansion degree of the elastic bag, so that the cleaning device adapts to cleaning of quartz sand with different particle sizes, and loss of the quartz sand is reduced; the gap filling strip is composed of a plurality of independent rubber strips, and the expansion degree of the elastic bag on each rubber strip can be independently adjusted, so that the gap between the spiral blade and the cleaning tank can be adjusted in a segmented mode, loss of quartz sand is effectively reduced, and meanwhile abrasion of equipment is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of quartz sand production equipment, and specifically refers to a spiral sand washing machine used for cleaning quartz sand. Background Art

[0002] Quartz sand cleaning is an important process that aims to remove impurities and contaminants on the surface of quartz sand to improve its purity and quality. Quartz sand cleaning includes mechanical cleaning and chemical cleaning. Mechanical cleaning uses clean water and mechanical stirring to remove floating dust and soluble impurities on the surface of quartz sand. When the amount of quartz sand to be cleaned is large, a spiral sand washing machine is often used for cleaning.

[0003] The spiral sand washing machine not only has the advantage of a large cleaning volume, but also has a high cleaning degree. It can effectively remove impurities such as dirt on the surface of quartz sand. The spiral sand washing machine uses an inclined auger to lift the quartz sand in the sand washing tank upward. During the lifting process, the water in the quartz sand can flow back into the sand washing tank, so that the output quartz sand has less water content. However, when the gap between the spiral blades of the spiral sand washing machine and the inner wall of the cleaning tank is too large, the fine sand with a smaller particle size will flow back severely, resulting in an increase in the loss rate of quartz sand. At present, the gap between the blades of the spiral sand washing machine and the inner wall of the cleaning tank is difficult to adjust, and the gap cannot be flexibly adjusted according to the particle size of the quartz sand. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a spiral sand washing machine for quartz sand cleaning, which at least partially solves the above problems.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a spiral sand washing machine for quartz sand cleaning, comprising a cleaning tank and a spiral blade, wherein a central shaft tube is provided at the center of the spiral blade, the spiral blade is arranged in the cleaning tank, and a driving component for driving the spiral blade to rotate is provided at one end of the cleaning tank; a gap filling strip, which is sleeved on the spiral blade along the spiral direction of the spiral blade, wherein the gap filling strip comprises a plurality of rubber strips sequentially distributed along the spiral direction of the spiral blade, and the rubber strip has two elastic bladders, and the elastic bladders are configured to be pressurized and expanded so that the gap between the spiral blade and the cleaning tank can be adjusted; One end of the central axis tube is connected to a pressurizing assembly, and the central axis tube is provided with branch tubes corresponding to the number of the rubber strips. One end of the rubber strip is provided with a connector connected to the two elastic bags, and the connector is connected to the branch tube, and a control valve is provided on the branch tube.

[0006] Furthermore, the connector includes a connecting box, the branch pipe is connected to the connecting box, and the connecting box is provided with two inserting tubes corresponding to the elastic sac, and the inserting tubes are connected to the elastic sac.

[0007] Furthermore, the pressurizing component includes a water supply device.

[0008] Furthermore, a water supply section is provided at one end of the gap filling strip, and a plurality of water outlet holes are provided on the elastic bag in the water supply section, and the plurality of water outlet holes are distributed along the length direction of the rubber strip.

[0009] Furthermore, a strip groove is provided between the two elastic bags, and the water outlet is communicated with the strip groove.

[0010] Furthermore, a sealing strip for sealing the water outlet hole is provided in the strip groove, and the sealing strip is detachably connected in the strip groove.

[0011] Furthermore, limiting grooves are provided on both sides of the sealing strip, and limiting strips corresponding to the limiting grooves are provided on the inner side of the strip groove, and the limiting strips are connected to the limiting grooves so that the sealing strip is locked in the strip groove; A sealing portion is provided on one side of the sealing strip, and when the sealing portion opens toward the strip-shaped groove, the water outlet hole is sealed.

[0012] Furthermore, a bearing seat is provided at one end of the central shaft tube close to the driving component, and the central shaft tube is connected to the bearing seat.

[0013] Furthermore, a discharge port for discharging materials and a drain port for draining water are respectively provided at both ends of the cleaning tank.

[0014] Furthermore, a bracket is provided at the bottom of the cleaning tank for supporting the cleaning tank and the driving component.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows: 1. A gap filling strip is set on the outer side of the spiral blade, and a pressurized and inflatable elastic bag is set on the gap filling strip. By adjusting the expansion degree of the elastic bag, the gap between the spiral blade and the cleaning tank can be adjusted to adapt to the cleaning of quartz sand with different particle sizes and reduce the loss of quartz sand; the gap filling strip is composed of multiple independent rubber strips, and the elastic bag on each rubber strip can independently adjust the expansion degree, so that the gap between the spiral blade and the cleaning tank can be adjusted in sections, effectively reducing the loss of quartz sand and reducing the wear of the equipment.

[0016] 2. Water outlet holes are opened on the elastic bags located at the lifting section and output section of the cleaning tank, and the number of elastic bags that discharge water is adjusted through sealing strips. The water outlet holes located in the area with poor fluidity of the quartz sand can drain water outward, playing a lubricating role when the elastic bags rub against the quartz sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a spiral sand washing machine for cleaning quartz sand proposed in an embodiment of the present invention; Figure 2 A schematic diagram of the internal structure of a cleaning tank in a spiral sand washing machine for cleaning quartz sand proposed in an embodiment of the present invention; Figure 3 A schematic diagram of the structure of a gap filling strip in a spiral sand washing machine for cleaning quartz sand proposed in an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a rubber strip in a spiral sand washing machine for cleaning quartz sand proposed in an embodiment of the present invention; Figure 5 A schematic diagram of the structure of an elastic bag in a spiral sand washing machine for quartz sand cleaning proposed in an embodiment of the present invention without a water outlet hole; Figure 6 A schematic diagram of a state in which a water outlet hole in a spiral sand washing machine for cleaning quartz sand proposed in an embodiment of the present invention is sealed; Figure 7 A schematic diagram of a state in which a water outlet hole is opened in a spiral sand washing machine for cleaning quartz sand proposed in an embodiment of the present invention; Figure 8 A schematic diagram of the cross-sectional structure of a sealing strip in a spiral sand washing machine for cleaning quartz sand proposed in an embodiment of the present invention; Fig. 9 A schematic diagram of the structure of a connector in a spiral sand washing machine for cleaning quartz sand proposed in an embodiment of the present invention; Fig.10 for Figure 1 Enlarged schematic diagram at point A in the middle.

[0018] Among them, 1. cleaning tank; 11. bracket; 101. discharge port; 102. drain port; 2. spiral blade; 3. driving component; 4. gap filling strip; 401. water supply section; 41. rubber strip; 411. elastic bag; 412. strip groove; 413. water outlet; 42. sealing strip; 421. limiting groove; 422. sealing part; 43. limiting strip; 5. connector; 51. connecting box; 52. insert; 6. central axis tube; 61. branch pipe; 62. control valve; 7. bearing seat.

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0020] The technical solutions 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 only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0022] like Figure 1 As shown, the present invention proposes a spiral sand washing machine for quartz sand cleaning, including a cleaning tank 1, a spiral blade 2 and a driving component 3. The cleaning tank 1 adopts a U-shaped cleaning tank with an open top. The spiral blade 2 contacts the arc surface at the bottom of the cleaning tank 1 to realize the transportation of quartz sand, and at the same time, it is convenient for personnel to observe the cleaning situation of quartz sand to prevent blockage.

[0023] The cleaning tank 1 and the spiral blade 2 are arranged in an inclined manner, and are respectively divided into a cleaning section, a lifting section and an output end along the inclined lower end to the raised end. A discharge port 101 is provided at the inclined raised end, and a drain port 102 is provided at the inclined lower end. Water is continuously supplied to the cleaning tank 1 through an external water supply device, and water accumulates in the cleaning section to form a cleaning pool. The quartz sand to be cleaned is transported to the cleaning section. As the spiral blade 2 rotates, the quartz sand is stirred and tumbled in the cleaning tank, which can remove the dirt on the surface of the quartz sand. Under the action of stirring, the mud and sand float on the surface of the cleaning tank, and then overflow from the drain port 102. The quartz sand sinks to the bottom of the cleaning tank 1. At the same time, under the conveying action of the spiral blade 2, the quartz sand is conveyed through the cleaning section, the lifting section and the output end in sequence, and finally discharged from the discharge port 101. While the quartz sand is being conveyed and lifted, the water in the quartz sand can continue to flow back, reducing the water content of the output quartz sand and reducing the subsequent quartz sand dehydration time.

[0024] In an optional embodiment, the inclination angle of the cleaning tank 1 and the spiral blade 2 is 14-18°. If the inclination angle is too large, it will cause serious reflux of the quartz sand and aggravate the loss of fine sand. If the inclination angle is too small, the water in the quartz sand will reflux slowly, and the output quartz sand will have a higher water content, which will increase the subsequent dehydration time and cause water waste.

[0025] Furthermore, a bracket 11 is provided at the bottom of the cleaning tank 1, and the cleaning tank 1 and the driving component 3 are supported by the bracket 11, so that the cleaning tank 1 and the driving component 3 are connected to each other, and when the angle is adjusted, the driving component 3 can be tilted synchronously.

[0026] Combination Figure 2 , Figure 3 and Figure 4 As shown, a gap filling strip 4 is sleeved on the spiral blade 2, and the gap filling strip 4 is located between the outer edge of the spiral blade 2 and the inner wall of the cleaning tank 1, wherein the gap filling strip 4 includes a plurality of rubber strips 41 distributed in sequence along the spiral direction of the spiral blade 2, and the gap filling strip 4 is composed of a plurality of rubber strips 41 distributed in sequence along the spiral direction of the spiral blade 2.

[0027] Combination Figure 5 As shown, there are two elastic bags 411 on the rubber strip 41, and the elastic bags 411 are configured to be pressurized and expanded so that the gap between the spiral blade 2 and the cleaning tank 1 can be adjusted. The gap between the spiral blade 2 and the cleaning tank 1 can be flexibly adjusted according to the size of the quartz sand particles being cleaned.

[0028] By controlling the expansion degree of the elastic bag 411, the gap between the spiral blade 2 and the cleaning tank 1 can be adjusted. When the particle size of the quartz sand is small, the elastic bag 411 expands to a greater extent, so that the gap between the spiral blade 2 and the cleaning tank 1 is smaller, thereby reducing the loss of quartz sand. When the particle size of the quartz sand is large, the elastic bag 411 expands to a smaller extent, so that the gap between the spiral blade 2 and the cleaning tank 1 is larger, thereby reducing equipment wear.

[0029] When the quartz sand is in the cleaning section, the quartz sand has good fluidity because it is mixed with water. When the quartz sand is transported to the lifting section, the water content is large because it has just been output from the cleaning section, but the fluidity is lower than that of the cleaning section. When the quartz sand is transported to the output section, due to the longer distance of transportation, the water in the quartz sand fully flows back. At this time, the quartz sand has less water content and poorer fluidity. The less water content and the worse fluidity, the less likely the quartz sand is to be lost. Correspondingly, the worse the fluidity, the greater the friction with the equipment and the more serious the wear.

[0030] Combination Figure 3 and Figure 4 As shown, the gap filling strip 4 is composed of a plurality of rubber strips 41 sequentially distributed along the spiral direction of the spiral blade 2, and the rubber strips 41 in the cleaning section, the lifting section and the output end are adjusted respectively, so that the gap between the spiral blade 2 and the cleaning tank 1 can be adjusted in sections; In this way, in the cleaning section, the gap between the spiral blade 2 and the cleaning tank 1 is the smallest, which effectively reduces the loss of quartz sand. Along the lifting section and the conveying section, the gap between the spiral blade 2 and the cleaning tank 1 gradually increases, thereby reducing the wear of the equipment.

[0031] Combination Figure 1 , Figure 4 , Fig. 9 and Fig.10 As shown, a central shaft tube 6 is provided at the center of the spiral blade 2, one end of the central shaft tube 6 is connected to a pressurizing assembly, the central shaft tube 6 is provided with branch tubes 61 corresponding to the number of rubber strips 41, one end of the rubber strip 41 is provided with a connector 5 connected to two elastic capsules 411, the other end of the elastic capsule 411 is sealed with a plug, the connector 5 is connected to the branch tube 61, and the pressurizing assembly sequentially transports pressurized medium into the elastic capsule 411 through the central shaft tube 6, the branch tube 61 and the connector 5 to expand the elastic capsule 411; Furthermore, a control valve 62 is provided on the branch pipe 61 . When the elastic bag 411 expands to a specified degree, the control valve 62 is used to close the branch pipe 61 to prevent the pressurized medium in the elastic bag 411 from flowing back.

[0032] In a specific embodiment, the connector 5 includes a connecting box 51, a branch pipe 61 is connected to the connecting box 51, two cannulas 52 corresponding to the elastic bag 411 are provided on the connecting box 51, the cannulas 52 are connected to the elastic bag 411, the connecting box 51 has a cavity inside, the cannulas 52 are connected to the cavity inside the connecting box 51, the pressurized medium is transported to the connecting box 51 through the branch pipe 61, and then is diverted from the connecting box 51 to the two cannulas 52, and is transported to the elastic bag 411 by the cannulas 52.

[0033] Furthermore, the pressurizing component includes a water supply device, and accordingly, the pressurizing medium is water.

[0034] In an optional embodiment, the central axis tube 6 is connected to the delivery pipe of the water supply equipment through a mechanical seal or a slip-on flange, preferably a mechanical seal connection is used to achieve continuous water supply while the central axis tube 6 rotates.

[0035] The quartz sand in the output section of the cleaning tank 1 is transported over a long distance and has sufficient water backflow. At this time, the quartz sand has less water content and poor fluidity, and the friction with the gap filling strip 4 is large, resulting in severe wear.

[0036] To reduce wear, combine Figure 3 and Figure 6 As shown, a water supply section 401 is provided at one end of the gap filling strip 4, and the water supply section 401 is located at the lifting section and the output section of the cleaning tank 1. A plurality of water outlet holes 413 are provided on the elastic bag 411 in the water supply section 401, and the plurality of water outlet holes 413 are distributed along the length direction of the rubber strip 41. When the elastic bag 411 in the water supply section 401 is filled with water, the water outlet holes 413 connected to the inside of the elastic bag 411 can discharge water outward, and when the elastic bag 411 rubs against the quartz sand, it plays a lubricating role to reduce wear.

[0037] Furthermore, the diameter of the water outlet 413 is 0.1 mm, so that the water output is small and can only meet the lubrication of the contact area between the elastic bag 411 and the quartz sand, avoiding excessive water output that increases the fluidity of the quartz sand and further causes the quartz sand to flow back.

[0038] Since the particle size of quartz sand affects the speed of water reflux, the smaller the particle size, the smaller the gap between the quartz sand, the slower the water reflux speed, and the longer the distance the quartz sand is transported (the length of the lifting section). The larger the particle size, the larger the gap between the quartz sand, the faster the water reflux speed, and the shorter the distance the quartz sand is transported (the length of the lifting section).

[0039] In order to make the effective water outlet length of the water supply section 401 adjustable, further, a strip groove 412 is provided between the two elastic bags 411, the water outlet hole 413 is connected to the strip groove 412, a sealing strip 42 is provided in the strip groove 412, and the sealing strip 42 is detachably connected in the strip groove 412, and when the sealing strip 42 is installed in the strip groove 412, the water outlet hole 413 can be sealed.

[0040] It should be understood that the sealing strips 42 installed in each rubber strip 41 are independent of each other.

[0041] In this way, the number of installed sealing strips 42 in the water supply section 401 is adjusted so that the effective water outlet length of the water supply section 401 can be adjusted, and the effective water outlet length of the water supply section 401 is located outside the quartz sand water-containing conveying area, only covering the quartz sand output section with poor fluidity, avoiding increasing the quartz sand drainage burden in the area with higher water content.

[0042] In a specific embodiment, limiting grooves 421 are provided on both sides of the sealing strip 42 , and limiting strips 43 corresponding to the limiting grooves 421 are provided on the inner side of the strip groove 412 . The limiting strips 43 are connected to the limiting grooves 421 , so that the sealing strip 42 is locked in the strip groove 412 .

[0043] It should be understood that the limit strip 43 and the rubber strip 41 are extruded as a whole, and the material is rubber. Therefore, the limit strip 43 has good elasticity and certain support. The corresponding sealing strip 42 is also extruded with rubber, and it itself also has good elasticity and certain support. When installing the sealing strip 42, the sealing strip 42 is directly pressed into the strip groove 412. The sealing strip 42 and the limit strip 43 can produce a certain deformation until the limit strip 43 is inserted into the limit groove 421 of the sealing strip 42 to complete the connection. The limit strip 43 has a certain locking effect on the sealing strip 42 to prevent the sealing strip 42 from falling off.

[0044] Combination Figure 6 , Figure 7 and Figure 8As shown, a sealing portion 422 is provided on one side of the sealing strip 42. When the sealing portion 422 opens toward the strip groove 412, the water outlet 413 is sealed. When the sealing portion 422 opens toward the opposite side of the strip groove 412, the water outlet 413 is opened to discharge water normally.

[0045] In this way, when adjusting the effective water outlet length of the water supply section 401, there is no need to remove the sealing strip 42, so that the sealing strip 42 can support the elastic bag 411 and reduce the deformation degree of the elastic bag 411 when rubbing against the quartz sand.

[0046] Combination Figure 1 and Fig.10 As shown, a bearing seat 7 is provided at one end of the central shaft tube 6 close to the driving component 3, and the central shaft tube 6 is connected to the bearing seat 7. One end of the central shaft tube 6 is supported by the bearing seat 7, and the other end of the central shaft tube 6 is connected to the cleaning tank 1 through a bearing.

[0047] Combination Figure 1 and Fig.10 As shown, the driving component 3 includes a motor and a reducer. The output end of the motor is connected to the input end of the reducer through a belt transmission mechanism, and the output end of the reducer is connected to the central shaft tube 6 through a belt transmission mechanism. The motor drives the central shaft tube 6 and the spiral blade 2 to rotate after the reducer reduces speed and increases torque.

[0048] The working principle of the present invention is as follows: the water supply device sequentially delivers water to the connecting box 51 through the central axis tube 6 and the branch tube 61, and then the water is diverted from the connecting box 51 to the two inserting tubes 52, and then delivered to the elastic bag 411 by the inserting tubes 52, so that the elastic bag 411 expands, and the gap between the spiral blade 2 and the cleaning tank 1 is adjusted according to the particle size of the quartz sand to be cleaned; At the same time, the expansion degree of the elastic bag 411 on each rubber strip 41 is controlled by the control valve 62 on each branch pipe 61, so that the gap between the spiral blade 2 and the cleaning tank 1 increases in sequence along the cleaning section, the lifting section, and the output end. In the cleaning section, the gap between the spiral blade 2 and the cleaning tank 1 is the smallest, which effectively reduces the loss of quartz sand. Along the lifting section and the conveying section, the gap between the spiral blade 2 and the cleaning tank 1 gradually increases, thereby reducing the wear of the equipment; According to the fluidity of the quartz sand during transportation, the sealing strip 42 in the poor fluidity area is switched to the side opposite to the opening of the strip groove 412 with the sealing portion 422, so that the water outlet 413 can drain water outward, and play a lubricating role when the elastic bag 411 rubs against the quartz sand; The driving component 3 drives the spiral blade 2 to rotate, and makes the conveying direction of the spiral blade 2 from the cleaning section to the output section, continuously conveying water and quartz sand to be cleaned to the cleaning section of the cleaning tank 1, and the water accumulates in the cleaning section to form a cleaning pool. As the spiral blade 2 rotates, the quartz sand is stirred and tumbled in the cleaning pool, which can remove the mud on the surface of the quartz sand. Under the action of stirring, the mud and sand float on the surface of the cleaning pool, and then overflow from the drain port 102, and the quartz sand sinks to the bottom of the cleaning tank 1. Under the action of the spiral blade 2, the quartz sand is conveyed through the cleaning section, the lifting section and the output end in sequence, and finally discharged from the discharge port 101.

[0049] In summary of the above embodiments: by arranging a gap filling strip 4 on the outer side of the spiral blade 2, and arranging a pressurized and inflatable elastic bag 411 on the gap filling strip 4, by adjusting the expansion degree of the elastic bag 411, the gap between the spiral blade 2 and the cleaning tank 1 can be adjusted, so as to adapt to the cleaning of quartz sand of different particle sizes and reduce the loss of quartz sand; The gap filling strip 4 is composed of a plurality of independent rubber strips 41. The elastic capsule 411 on each rubber strip 41 can independently adjust the expansion degree, so that the gap between the spiral blade 2 and the cleaning tank 1 can be adjusted in sections, effectively reducing the loss of quartz sand and reducing the wear of the equipment; Water outlet holes 413 are opened on the elastic bag 411 located at the lifting section and the output section of the cleaning tank 1, and the number of elastic bags 411 that discharge water is adjusted by the sealing strip 42, so that the water outlet holes 413 located in the intersection area of ​​the quartz sand fluidity can discharge water outward, playing a lubricating role when the elastic bag 411 rubs against the quartz sand.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. 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 these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0052] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A spiral sand washing machine for quartz sand cleaning, characterized in that: It comprises a cleaning tank (1) and a spiral blade (2), wherein a central shaft tube (6) is provided at the center of the spiral blade (2), the spiral blade (2) is arranged in the cleaning tank (1), and a driving component (3) for driving the spiral blade (2) to rotate is provided at one end of the cleaning tank (1); a gap filling strip (4) sleeved on the spiral blade (2) along the spiral direction of the spiral blade (2), wherein the gap filling strip (4) comprises a plurality of rubber strips (41) sequentially distributed along the spiral direction of the spiral blade (2), the rubber strips (41) having two elastic bags (411), the elastic bags (411) being configured to be able to expand under pressure, so that the gap between the spiral blade (2) and the cleaning tank (1) can be adjusted; One end of the central axis tube (6) is connected to a pressurizing assembly, the central axis tube (6) is provided with branch tubes (61) corresponding to the number of the rubber strips (41), one end of the rubber strip (41) is provided with a connector (5) connected to the two elastic bags (411), the connector (5) is connected to the branch tubes (61), and the branch tubes (61) are provided with a control valve (62).

2. The spiral sand washing machine for quartz sand cleaning according to claim 1, characterized in that: The connector (5) comprises a connecting box (51), the branch pipe (61) is connected to the connecting box (51), and the connecting box (51) is provided with two insertion tubes (52) corresponding to the elastic bag (411), and the insertion tubes (52) are connected to the elastic bag (411).

3. The spiral sand washing machine for quartz sand cleaning according to claim 1, characterized in that: The pressurizing assembly includes a water supply.

4. The spiral sand washing machine for quartz sand cleaning according to claim 3 is characterized in that: A water supply section (401) is provided at one end of the gap filling strip (4), and a plurality of water outlet holes (413) are provided on the elastic bag (411) in the water supply section (401), and the plurality of water outlet holes (413) are distributed along the length direction of the rubber strip (41).

5. The spiral sand washing machine for quartz sand cleaning according to claim 4, characterized in that: A strip-shaped groove (412) is provided between the two elastic bags (411), and the water outlet hole (413) is in communication with the strip-shaped groove (412).

6. The spiral sand washing machine for quartz sand cleaning according to claim 5, characterized in that: A sealing strip (42) for sealing the water outlet hole (413) is provided in the strip-shaped groove (412); the sealing strip (42) is detachably connected in the strip-shaped groove (412).

7. The spiral sand washing machine for cleaning quartz sand according to claim 6, characterized in that: Limiting grooves (421) are provided on both sides of the sealing strip (42); a limiting strip (43) corresponding to the limiting groove (421) is provided on the inner side of the strip-shaped groove (412); the limiting strip (43) is connected to the limiting groove (421), so that the sealing strip (42) is locked in the strip-shaped groove (412); A sealing portion (422) is provided on one side of the sealing strip (42); when the sealing portion (422) opens toward the strip-shaped groove (412), the water outlet hole (413) is sealed.

8. The spiral sand washing machine for quartz sand cleaning according to claim 1, characterized in that: A bearing seat (7) is provided at one end of the central shaft tube (6) close to the driving component (3), and the central shaft tube (6) is connected to the bearing seat (7).

9. The spiral sand washing machine for cleaning quartz sand according to claim 1, characterized in that: A material discharge port (101) for discharging material and a water discharge port (102) for draining water are respectively provided at both ends of the cleaning tank (1).

10. The spiral sand washing machine for quartz sand cleaning according to claim 1, characterized in that: A bracket (11) is provided at the bottom of the cleaning tank (1) for supporting the cleaning tank (1) and the driving component (3).

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