Fine sand screening machine

Abstract

The utility model provides a fine sand screening machine, and belongs to the technical field of building construction. A fine sand screening machine comprises a base support, a cylinder is fixedly arranged on the base support, the cylinder is obliquely installed, the cylinder is hollow, and a screening assembly is arranged in the cylinder; the screening assembly comprises an outer cover fixed to the end face of one side of the cylinder, a baffle is further fixed in the cylinder, a screening pipe is fixed between the outer cover and the baffle, the peripheral side of the screening pipe is sleeved with a rotating pipe, and a rotating disc is fixed to the side, close to the outer cover, of the rotating pipe. According to the fine sand screening device, screened large sand grains can be brought into cracks of the screening pipe through the spirally arranged filtering plate and then flow out through the screening pipe to be collected, qualified fine sand flows out through the leaking opening, and therefore the purpose of separating coarse sand from the fine sand more accurately is achieved, and the screening rate of the fine sand is effectively increased.

Description

Technical Field

[0001] The utility model belongs to the field of building construction, in particular to a fine sand screening machine. Background Art

[0002] Construction projects refer to the use of building materials to create a space for people to live in and use. Fine sand is generally needed in construction projects. Fine sand can make buildings more stable, so fine sand plays a very important role.

[0003] During construction, sand needs to be screened. Nowadays, screening is mostly done manually by placing sand directly on the filter net for filtering. However, due to the low fluidity of sand, smaller sand particles are usually filtered out along with the large sand particles, resulting in a greatly reduced rate of fine sand screened. Utility Model Content

[0004] The utility model aims to solve the deficiencies of the existing technology and provides a fine sand screening machine.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a fine sand screening machine, comprising a base bracket, characterized in that: a cylinder is fixedly provided on the base bracket, the cylinder is installed obliquely, the cylinder is hollow, and a screening component is provided in the cylinder;

[0006] The screening assembly includes an outer cover fixed to one end surface of the cylinder, a baffle fixed inside the cylinder, a screening tube fixed between the outer cover and the baffle, a rotating tube sleeved on the outer circumference of the screening tube, a turntable fixed on the side of the rotating tube close to the outer cover, the turntable rotatably connected to the screening tube, a filter plate fixed on the outer circumference of the rotating tube, and a plurality of filter holes provided on the filter plate.

[0007] Optionally, the screening tube extends to a side away from the baffle, the interior of the screening tube is hollow, and a crack is formed on the outer peripheral side of the screening tube, which is communicated with the interior of the screening tube.

[0008] Optionally, at least two through holes are opened on the outer circumference of the rotating tube, and the filter plate is spirally arranged.

[0009] Optionally, a motor is installed on the outer circumference of the cylinder, and a motor gear is provided on the motor, and the motor gear is engaged with the turntable.

[0010] Optionally, at least two hollow ventilation tubes are provided inside the cylinder, and a plurality of air holes are provided on the ventilation tubes. An air flow channel is provided on the end face of the cylinder away from the outer cover, and the air flow channel runs through all the ventilation tubes and is connected to the interior of the ventilation tubes. The air flow channel is connected to an air pump through a hose, and a leakage port is also provided at the bottom of the cylinder.

[0011] Optionally, a notch is provided on the baffle.

[0012] In summary, the present invention has the following beneficial effects compared with the prior art:

[0013] 1. Due to the setting of the screening component, the larger sand particles screened out can be brought into the cracks of the screening tube through the spirally arranged filter plate, and then flow out through the screening tube for collection, while the qualified fine sand flows out through the leak, thereby achieving the purpose of more accurate separation of coarse sand and fine sand, and effectively enhancing the screening rate of fine sand.

[0014] 2. Through the setting of the vent pipe, after ventilation, the vent pipe will spray air into the accumulated sand, which can greatly increase the fluidity of the sand, so that the sand can be easily screened like water. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the present utility model.

[0016] Figure 2 It is the main view of the present utility model.

[0017] Figure 3 For this utility model Figure 2 Cross-sectional view in the AA direction.

[0018] Figure 4 This is a three-dimensional diagram of the screening component of the present invention.

[0019] 10. Base bracket; 11. Cylinder; 12. Motor; 13. Motor gear; 14. Baffle; 15. Outer cover; 16. Turntable; 17. Leakage port; 18. Screening tube; 19. Rotating tube; 20. Filter plate; 21. Ventilation tube; 22. Air flow channel; 23. Hose. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] As shown in Figures 1-4, a fine sand screening machine includes a base bracket 10, characterized in that a cylinder 11 is fixedly provided on the base bracket 10, the cylinder 11 is installed at an angle, the cylinder 11 is hollow, and a screening component is provided inside the cylinder 11;

[0022] The screening assembly includes an outer cover 15 fixed to one end face of the cylinder 11. A baffle 14 is also fixed inside the cylinder 11. The baffle 14 is provided with a notch. A screening tube 18 is fixed between the outer cover 15 and the baffle 14. The screening tube 18 extends to the side away from the baffle 14. The interior of the screening tube 18 is hollow. A crack is opened on the outer peripheral side of the screening tube 18, and the crack is connected to the interior of the screening tube 18. A rotating tube 19 is sleeved on the outer peripheral side of the screening tube 18. A turntable 16 is fixed on the side of the rotating tube 19 close to the outer cover 15. The turntable 16 is rotatably connected to the screening tube 18. A filter plate 20 is fixed on the outer peripheral side of the rotating tube 19. The filter plate 20 is provided with a plurality of filter holes. The outer peripheral side of the rotating tube 19 is provided with at least two through holes. The filter plate 20 is spirally arranged.

[0023] A motor 12 is installed on the outer circumference of the cylinder 11. The motor 12 is provided with a motor gear 13, which is engaged with the turntable 16. At least two hollow ventilation pipes 21 are provided inside the cylinder 11. The ventilation pipes 21 are provided with a plurality of air holes. An air flow channel 22 is provided on the end face of the cylinder 11 on one side away from the outer cover 15. The air flow channel 22 runs through all the ventilation pipes 21 and is connected to the inside of the ventilation pipes 21. The air flow channel 22 is connected to an air pump through a hose 23. A leak 17 is also provided at the bottom of the cylinder 11. Through the setting of the ventilation pipe 21, after ventilation, the ventilation pipe 21 will spray air into the accumulated sand, thereby greatly increasing the fluidity of the sand, so that the sand can be easily screened like water.

[0024] When in use, the motor 12 can be started to make the motor gear 13 drive the turntable 16 to rotate. The rotation of the turntable 16 will drive the rotating tube 19 to rotate, thereby rotating the filter plate 20 and starting the air pump at the same time, so that the ventilation pipe 21 sprays gas, and then coarse sand is put into the opening of the cylinder 11. The coarse sand enters the interior of the cylinder 11 through the gap of the baffle 14 and is screened by the spiral arrangement of the filter plate 20. Sand particles with larger diameters cannot pass through the filter plate 20 and will be blocked by the filter plate 20 and brought to the upper part of the cylinder 11. When the sand particles are at the upper part, they will fall into the through-hole of the rotating tube 19. When the rotating tube 19 rotates until the through-hole coincides with the crack on the screening tube 18, the sand particles will fall into the screening tube 18 and then flow out of the screening tube 18 for collection, thereby screening out sand particles with larger diameters, while smaller sand particles will flow out through the leak 17 like water under the action of the air flow.

[0025] Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

Claims

1. A fine sand screening machine, comprising a base support (10), characterized in that: A cylinder (11) is fixedly provided on the base bracket (10), the cylinder (11) is installed at an angle, the cylinder (11) is hollow, and a screening component is provided inside the cylinder (11); The screening assembly comprises an outer cover (15) fixed on one end surface of the cylinder (11); a baffle (14) is also fixed inside the cylinder (11); a screening tube (18) is fixed between the outer cover (15) and the baffle (14); a rotating tube (19) is sleeved on the outer circumference of the screening tube (18); a rotating disk (16) is fixed on the side of the rotating tube (19) close to the outer cover (15); the rotating disk (16) is rotatably connected to the screening tube (18); a filter plate (20) is fixed on the outer circumference of the rotating tube (19); and a plurality of filter holes are provided on the filter plate (20).

2. A fine sand screening machine according to claim 1, characterized in that: The screening tube (18) extends to a side away from the baffle (14), the interior of the screening tube (18) is hollow, and a crack is opened on the outer peripheral side of the screening tube (18), and the crack is communicated with the interior of the screening tube (18).

3. The fine sand screening machine according to claim 1, characterized in that: At least two through holes are opened on the outer peripheral side of the rotating tube (19), and the filter plate (20) is spirally arranged.

4. The fine sand screening machine according to claim 1, characterized in that: A motor (12) is installed on the outer peripheral side of the cylinder (11), and a motor gear (13) is provided on the motor (12), and the motor gear (13) is meshed with the turntable (16).

5. The fine sand screening machine according to claim 1, characterized in that: At least two hollow vent tubes (21) are provided inside the cylinder (11), and a plurality of air holes are provided on the vent tubes (21). An air flow channel (22) is provided on the end surface of the cylinder (11) away from the outer cover (15). The air flow channel (22) passes through all the vent tubes (21) and is communicated with the interior of the vent tubes (21). The air flow channel (22) is connected to an air pump through a hose (23). A leak (17) is also provided at the bottom of the cylinder (11).

6. The fine sand screening machine according to claim 1, characterized in that: The baffle (14) is provided with a notch.

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