Spiral sand washing equipment with fine sand recycling and rewashing mechanism

Abstract

The utility model provides spiral sand washing equipment with a fine sand recycling and rewashing mechanism, which comprises an upper inclined sand washing box and an upper spiral component positioned in the upper inclined sand washing box, an upper filter screen is arranged at the bottom of the upper inclined sand washing box, a lower inclined sand washing box is arranged below the upper inclined sand washing box, and a lower filter screen is arranged at the bottom of the lower inclined sand washing box. A drainage pipe communicated with the inner cavity is arranged on one side of the lower inclined sand washing box, an opening of the drainage pipe is opposite to the upper filter screen, a gate is arranged in the drainage pipe, and a side filter screen located above the gate is arranged on one side of the drainage pipe. According to the sand washing machine, the upper filter screen is arranged at the bottom of the upper inclined sand washing box, so that fine sand can be directly screened and fall off when the upper spiral assembly operates, the fine sand can be prevented from being mixed in a gap between a spiral blade on the upper spiral assembly and the upper inclined sand washing box, the problem of operation clamping stagnation is solved, the abrasion speed is reduced, and the service life of the sand washing machine is prolonged. The service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of sand washing equipment, specifically a spiral sand washing equipment with a fine sand recovery and rewashing mechanism. Background Technology

[0002] Spiral sand washing machine is a type of sand washing machine. It mainly uses a spiral device inside the equipment to agitate the sand and gravel, thereby mixing the mud and water in the sand and gravel and discharging it from the outlet of the equipment. The sand and gravel are gradually screened under the action of the spiral device and discharged from the discharge port at the top, thus achieving the effect of cleaning and screening the sand and gravel.

[0003] Utility model CN211026693U discloses a spiral sand washing machine with anti-jamming and automatic feeding function, including a base, support plate, controller, feeding mechanism, sand washing box, motor, rotating shaft, bearing, spiral blade and several support legs. A vibration mechanism is provided below the sand washing box. The feeding mechanism includes a material box, lifting component, first motor, telescopic component, drive rod and baffle. The vibration mechanism includes a fixed frame and several vibration components. The vibration components include a reciprocating unit, reciprocating plate, vibrating block, several springs and two fixed rods. This spiral sand washing machine with anti-jamming and automatic feeding function continuously supplies fine sand to the sand washing box through the feeding mechanism, ensuring the working efficiency of the equipment while avoiding overloading of the equipment due to excessive feeding at one time. Moreover, the vibration mechanism strikes the sand washing box, causing the fine sand inside to vibrate, preventing it from getting stuck between the spiral blade and the inner wall of the sand washing box, thereby ensuring the smooth operation of the equipment and improving its practicality.

[0004] However, the above-mentioned existing technologies still have shortcomings in use: 1. The sand and gravel contain coarse sand and fine sand. During the sand washing process, the coarse sand and fine sand are transported by the spiral blades and mixed with water to achieve washing. Although the vibration mechanism is set to strike the fine sand box, the problem of accelerated wear of the spiral blades still exists; 2. It does not have the function of screening coarse sand and fine sand, making it difficult to obtain sand and gravel of different qualities, and its practicality is insufficient.

[0005] Therefore, this utility model provides a spiral sand washing device with a fine sand recycling and rewashing mechanism. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a spiral sand washing equipment with a fine sand recovery and rewashing mechanism to solve the problems mentioned in the background technology. This utility model has the advantages of greatly reducing the wear rate of the spiral blades, as well as the advantages of coarse and fine sand screening and fine sand recovery, which greatly improves the practicality of the equipment.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a spiral sand washing device with a fine sand recovery and rewashing mechanism, comprising an upper inclined sand washing box and an upper spiral assembly located inside the upper inclined sand washing box. An upper filter screen is provided at the bottom of the upper inclined sand washing box, and a lower inclined sand washing box is provided below the upper inclined sand washing box. A drain pipe communicating with the inner cavity is provided on one side of the lower inclined sand washing box. The opening of the drain pipe is opposite to the upper filter screen and a gate is provided inside it. A side filter screen is provided on one side of the drain pipe above the gate. A water outlet pipe is provided above the lower inclined sand washing box and a lower spiral assembly is provided inside it.

[0008] Furthermore, the drainage pipe is tapered and its small end is connected to the bottom of the inclined sand washing box. A rectangular tube is fixedly connected to the top of the drainage pipe, and the gate is located inside the rectangular tube.

[0009] Furthermore, the gate includes a rotating shaft, gate plates, and a control motor. The rotating shaft is disposed on a rectangular tube and at least two circumferentially evenly distributed gate plates are fixedly connected to its outer peripheral wall. The control motor is fixedly disposed at one end outside the rectangular tube and its output shaft is fixedly connected to one end of the rotating shaft.

[0010] Furthermore, a vibration motor is fixedly connected to the outer wall of the drainage tube.

[0011] Furthermore, a flow-guiding enclosure is welded to the bottom of the inclined sand washing box, with the bottom of the flow-guiding enclosure facing the inner cavity of the rectangular tube, and the upper filter screen is located inside the flow-guiding enclosure.

[0012] Furthermore, an overflow pipe is fixedly connected to one end of the rectangular tube, the side filter screen is located on one side of the rectangular tube, a manifold opposite to the side filter screen is fixedly connected to one side of the rectangular tube, and a drain pipe located on one side of the overflow pipe is fixedly connected to one end of the manifold.

[0013] Furthermore, a wastewater collection tank is provided below the inclined sand washing box.

[0014] The beneficial effects of this utility model are as follows:

[0015] In this invention, by installing a filter screen at the bottom of the inclined sand washing box, fine sand can be directly screened and dropped when the upper spiral assembly is running. This avoids fine sand getting stuck in the gap between the spiral blades of the upper spiral assembly and the inclined sand washing box, thereby eliminating the problem of operation jamming, reducing the wear rate, and extending the service life of the equipment.

[0016] In this invention, a lower inclined sand washing box is provided below the upper inclined sand washing box. The lower inclined sand washing box has the function of collecting fine sand that falls off the upper filter screen and rewashing the collected fine sand to obtain clean fine sand. Compared with the prior art, it has the function of fine sand recycling and rewashing, which makes it easier to obtain sand and gravel of different qualities. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a spiral sand washing device with a fine sand recovery and rewashing mechanism according to the present invention;

[0018] Figure 2 for Figure 1 A magnified diagram of the central "a";

[0019] Figure 3 for Figure 1 Rear view;

[0020] Figure 4 for Figure 1 The diagram at the bottom.

[0021] In the diagram: 1. Upper inclined sand washing tank; 2. Upper spiral assembly; 3. Vibration motor; 4. Lower inclined sand washing tank; 41. Drainage enclosure; 5. Drainage pipe; 51. Rectangular pipe; 511. Overflow pipe; 512. Manifold; 5121. Drainage pipe; 6. Gate; 61. Rotating shaft; 62. Gate plate; 63. Control motor; 7. Side filter screen; 8. Outlet pipe; 9. Lower spiral assembly; 101. Sewage collection tank; 102. Upper filter screen. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figures 1 to 4 This utility model provides a technical solution: a spiral sand washing device with a fine sand recovery and rewashing mechanism, including an upper inclined sand washing box 1 and an upper spiral assembly 2 located inside the upper inclined sand washing box 1. In use, the upper inclined sand washing box 1 is installed on a base by a bracket. The base is equipped with a hopper by a support beam. A spiral transmission pipe is installed at the bottom of the hopper. The outlet end of the spiral transmission pipe is opposite to the upper inclined sand washing box 1 above and near the bottom. In use, the sand to be washed is put into the hopper. When the spiral transmission pipe is started, a certain amount of sand is transported into the upper inclined sand washing box 1. Then, water is injected into the upper part of the upper inclined sand washing box 1 near the top. Finally, the upper spiral assembly 2 is started. At this time, the sand can be washed and transported.

[0024] In this technical solution, an upper filter screen 102 is provided at the bottom of the inclined sand washing box 1. The upper filter screen 102 can be a perforated plate structure or a combination of a metal plate frame and a metal mesh. During the sand and gravel conveying and washing process in the inclined sand washing box 1, fine sand will fall off when it passes through the upper filter screen 102, so that coarse sand in the sand and gravel stays in the inclined sand washing box 1, thereby realizing the screening treatment of coarse and fine sand.

[0025] Furthermore, a downward-sloping sand washing tank 4 is provided below the upward-sloping sand washing tank 1. A drainage pipe 5, communicating with the inner cavity, is provided on one side of the downward-sloping sand washing tank 4. The opening of the drainage pipe 5 is opposite to the upper filter screen 102, and a gate 6 is installed inside it. The function of the drainage pipe 5 is to receive the fine sand falling from above and guide it into the downward-sloping sand washing tank 4. A water outlet pipe 8 is provided above the downward-sloping sand washing tank 4, and a lower spiral assembly 9 is installed inside it. The function of the water outlet pipe 8 is to inject water into the downward-sloping sand washing tank 4 and activate the lower spiral assembly 9. At this time, the fine sand in the downward-sloping sand washing tank 4 can be cleaned and transported, thereby realizing the function of fine sand recycling and re-cleaning. The gate 6 is designed to prevent fine sand in the drainage pipe 5 from entering the downward-sloping sand washing tank 4, avoiding wastewater contamination of the sand being washed in the downward-sloping sand washing tank 4.

[0026] In this technical solution, a side filter screen 7 is provided on one side of the diversion pipe 5, located above the gate 6. The function of the side filter screen 7 is to discharge excess sewage above the gate 6 in the diversion pipe 5.

[0027] In this embodiment, the drainage pipe 5 is conical, with its small end connected to the bottom of the downward-sloping sand washing tank 4. A rectangular tube 51 is fixedly connected to the top of the drainage pipe 5, and the gate 6 is located inside the rectangular tube 51. The purpose of this arrangement is to transport the falling fine sand to the bottom of the downward-sloping sand washing tank 4. During washing, the fine sand is transported obliquely upward, thereby extending the washing time of the fine sand in the downward-sloping sand washing tank 4. During use, a vibration motor 3 can be fixedly connected to the outer wall of the drainage pipe 5. The function of the vibration motor 3 is to prevent fine sand from accumulating on the inner conical wall of the drainage pipe 5.

[0028] The bottom of the inclined sand washing box 4 is welded with a diversion enclosure 41. The bottom of the diversion enclosure 41 faces the inner cavity of the rectangular tube 51. The upper filter screen 102 is located inside the diversion enclosure 41. The purpose of this arrangement is to guide all the fine sand and some sewage into the diversion pipe 5 to avoid the leakage of fine sand and sewage and the formation of pollution.

[0029] In this embodiment, an overflow pipe 511 is fixedly connected to one end of the rectangular tube 51. When the gate 6 is closed, fine sand and sewage will accumulate on it. When there is too much sewage, it will be discharged through the overflow pipe 511. The side filter screen 7 is located on one side of the rectangular tube 51. A confluence channel 512 opposite to the side filter screen 7 is fixedly connected to one side of the rectangular tube 51. Sewage discharged through the side filter screen 7 will gather in the confluence channel 512. A drain pipe 5121 located on one side of the overflow pipe 511 is fixedly connected to one end of the confluence channel 512. The overflow pipe 511 and the drain pipe 5121 facilitate the discharge of sewage through external pipelines.

[0030] In this technical solution, the gate 6 includes a rotating shaft 61, gate plates 62, and a control motor 63. The rotating shaft 61 is mounted on a rectangular tube 51, and at least two circumferentially evenly distributed gate plates 62 are fixedly connected to its outer peripheral wall. The control motor 63 is fixedly mounted on one end of the rectangular tube 51, and its output shaft is fixedly connected to one end of the rotating shaft 61. When the rotating shaft 61 rotates until the outer edge of the gate plate 62 abuts against the inner peripheral wall of the rectangular tube 51, the rectangular tube 51 is closed; otherwise, it is opened. The control motor 63 provides driving force to the rotation of the rotating shaft 61.

[0031] In this embodiment, a sewage collection tank 101 is provided below the inclined sand washing tank 4. The sewage collection tank 101 is installed on the base plate and is used to receive and collect the sewage generated by this sand washing equipment. Common water filtration equipment can be installed on the base plate, and then a water pump is used to transport the filtered sewage to the inclined sand washing tank 1 and the inclined sand washing tank 4 for cleaning.

[0032] Working principle: In use, water is first supplied to the upward tilting sand washing tank 1, and then a certain amount of sand and gravel is conveyed into the upward tilting sand washing tank 1. The upper spiral assembly 2 is activated to realize the sand washing and conveying functions of the upward tilting sand washing tank 1. When the fine sand in the sand and gravel passes through the upper filter screen 102, it will fall into the rectangular tube 51 and be lifted by the gate 6. When too much fine sand accumulates, the control shaft 61 is rotated and the gate 62 is flipped. The fine sand falls and then enters the downward tilting sand washing tank 4 under the guidance of the diversion pipe 5. Then, water is supplied to the downward tilting sand washing tank 4 through the water outlet pipe 8, and the lower spiral assembly 9 is activated. At this time, the recovered fine sand can be washed.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A spiral sand washing equipment with fine sand recycling and rewashing mechanism, comprising an upper inclined sand washing tank (1) and an upper spiral assembly (2) located in the upper inclined sand washing tank (1), characterized in that, The bottom of the upper inclined sand washing tank (1) is provided with an upper filter screen (102), the lower side of the upper inclined sand washing tank (1) is provided with a lower inclined sand washing tank (4), one side of the lower inclined sand washing tank (4) is provided with a drainage pipe (5) communicating with the inner cavity, the mouth of the drainage pipe (5) is opposite to the upper filter screen (102) and a gate (6) is arranged in the drainage pipe (5), one side of the drainage pipe (5) is provided with a side filter screen (7) above the gate (6), the upper side of the lower inclined sand washing tank (4) is provided with a water outlet pipe (8) and a lower spiral assembly (9) is arranged in the water outlet pipe (8).

2. A spiral sand washing plant with fine sand recycling and rewashing mechanism according to claim 1, characterized in that: The drainage pipe (5) is conical and the small end of the drainage pipe (5) is connected to the position close to the bottom of one side of the lower inclined sand washing tank (4), and a rectangular pipe (51) is fixedly connected to the top of the drainage pipe (5), and the gate (6) is arranged in the rectangular pipe (51).

3. A spiral sand washing plant with fine sand recycling and re-washing mechanism according to claim 2, characterized in that: The gate (6) comprises a rotating shaft (61), a gate plate (62) and a control motor (63), the rotating shaft (61) is arranged in the rectangular pipe (51) and at least two gate plates (62) are fixedly connected to the outer circumferential wall of the rotating shaft (61) and are uniformly distributed in the circumferential direction, and the control motor (63) is fixedly arranged at one end of the rectangular pipe (51) and the output shaft of the control motor (63) is fixedly connected to one end of the rotating shaft (61).

4. A spiral sand washing plant with fine sand recycling and re-washing mechanism according to claim 2, characterized in that: The outer wall of the drainage pipe (5) is fixedly connected with a vibration motor (3).

5. A spiral sand washing plant with fine sand recycling and re-washing mechanism as claimed in claim 2, wherein: The bottom of the lower inclined sand washing tank (4) is welded with a drainage fence (41), the bottom of the drainage fence (41) faces the inner cavity of the rectangular pipe (51), and the upper filter screen (102) is arranged in the drainage fence (41).

6. A spiral sand washing plant with fine sand recycling and re-washing mechanism as claimed in claim 2, wherein: One end of the rectangular pipe (51) is fixedly connected with an overflow pipe (511), the side filter screen (7) is arranged at one side of the rectangular pipe (51), one side of the rectangular pipe (51) is fixedly connected with a confluence groove (512) opposite to the side filter screen (7), and one end of the confluence groove (512) is fixedly connected with a drain pipe (5121) arranged at one side of the overflow pipe (511).

7. A spiral sand washing plant with fine sand recycling and re-washing mechanism as claimed in claim 1, wherein: The lower side of the lower inclined sand washing tank (4) is provided with a sewage collection tank (101).

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