A discharging air-blocking mechanism for a vibrating screen

Abstract

The present invention discloses a discharge air-blocking mechanism for a vibrating screen, which is arranged at the connection between the vibrating screen and the material receiving dust suction box of a grain vibrating screen dust removal device, the vibrating screen and the material receiving dust suction box are both installed on the frame of the grain vibrating screen dust removal device, a rectangular grain receiving port is arranged on the side wall of the material receiving dust suction box close to the vibrating screen, and the grain receiving port is connected to the discharge end of the vibrating screen; the discharge air-blocking mechanism comprises a vertically arranged rubber baffle, screws fixed to both sides of the rubber baffle, a positioning plate arranged on the frame and located at both sides of the material receiving dust suction box, and two T-shaped slideways arranged vertically on the inner wall of the material receiving dust suction box and located at both sides of the grain receiving port. The present invention enables the grain to be dust-removed according to the grain particle size when the grain comes out of the vibrating screen and enters the material receiving dust suction box for dust removal.

Description

Technical Field

[0001] The invention relates to the field of vibrating screen equipment, and in particular to a material discharging and air-blocking mechanism for a vibrating screen. Background Art

[0002] The existing grain vibration screen dust removal device often cannot adjust the gap between the vibration screen and the material receiving dust suction box at the connection between the two, so that when the grain comes out of the vibration screen and enters the material receiving dust suction box for dust removal, the dust removal of the grain cannot be adjusted according to the size of the grain particles. Summary of the invention

[0003] The purpose of the present invention is to provide a discharge air-blocking mechanism for a vibrating screen in view of the above-mentioned defects.

[0004] A discharge air-blocking mechanism for a vibrating screen, which is arranged at the connection between the vibrating screen and a receiving dust suction box of a grain vibrating screen dust removal device, wherein the vibrating screen and the receiving dust suction box are both installed on a frame of the grain vibrating screen dust removal device, and a rectangular grain receiving port is arranged on the side wall of the receiving dust suction box close to the vibrating screen, and the grain receiving port is connected to the discharge end of the vibrating screen;

[0005] The discharging air-blocking mechanism comprises a vertically arranged rubber baffle, screws fixedly connected to both sides of the rubber baffle, a positioning plate arranged on the frame and located on both sides of the material receiving dust suction box body, and two T-shaped slide grooves vertically arranged on the inner wall of the material receiving dust suction box body and located on both sides of the grain receiving port, the positioning plate is provided with a first vertical groove for the screw to pass through, and the side walls of the material receiving dust suction box body are provided with second vertical grooves for the screw to pass through, the first vertical groove and the second vertical groove are equal in length and are at the same height, the rubber baffle comprises a first rectangular plate and a second rectangular plate formed in one piece, the length of the second rectangular plate is the same as that of the first rectangular plate, the width of the second rectangular plate is smaller than that of the first rectangular plate, two T-shaped sliding blocks adapted to the two T-shaped slide grooves are fixedly connected to the first rectangular plate, and the area of ​​the first rectangular plate is larger than that of the grain receiving port;

[0006] The screws fixed on both sides of the rubber baffle pass through the first vertical groove and the second vertical groove in sequence from the inside of the material receiving and dust collecting box and are fixed to the outer wall of the material receiving and dust collecting box through washers and nuts.

[0007] An air suction fan is arranged on the upper part of the material receiving dust suction box.

[0008] The width of the second rectangular plate is slightly smaller than the distance between the two T-shaped slide grooves, and the thickness of the second rectangular plate is slightly smaller than the thickness of the T-shaped slide grooves.

[0009] One end of the screw rod passes through the side wall of the first rectangular plate and is screwed into the interior of the first rectangular plate to achieve fixed connection between the screw rod and the rubber baffle.

[0010] The advantages of the present invention are as follows: the present invention arranges a discharge air-blocking mechanism of the vibrating screen at the connection between the vibrating screen and the material receiving dust suction box to achieve the purpose of adjusting the passing gap of grain between the vibrating screen and the material receiving dust suction box, so that when the grain comes out of the vibrating screen and enters the material receiving dust suction box for dust removal, the dust removal of the grain can be adjusted according to the size of the grain particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of a grain vibrating screen dust removal device;

[0012] Figure 2 This is a structural diagram of the discharge air-blocking mechanism;

[0013] Figure 3 is a structural schematic diagram of a positioning plate;

[0014] Figure 4 It is a cross-sectional schematic diagram of the discharge air-blocking mechanism along the screw. DETAILED DESCRIPTION

[0015] As shown in the attached drawings, a discharge air-blocking mechanism for a vibrating screen is provided at the connection between a vibrating screen 1 and a receiving dust collecting box 2 of a grain vibrating screen dust removal device. The vibrating screen 1 and the receiving dust collecting box 2 are both installed on a frame 3 of the grain vibrating screen dust removal device. A rectangular grain receiving port 4 is provided on the side wall of the receiving dust collecting box 2 close to the vibrating screen 1. The grain receiving port 4 is connected to the discharge end of the vibrating screen 1.

[0016] The discharging air-blocking mechanism comprises a vertically arranged rubber baffle 6, screws 7 fixedly connected to both sides of the rubber baffle 6, a positioning plate 8 arranged on the frame 3 and located on both sides of the material receiving dust suction box 2, and two T-shaped slide grooves 9 vertically arranged on the inner wall of the material receiving dust suction box 2 and located on both sides of the grain receiving port 4. The positioning plate 8 is provided with a first vertical groove 10 for the screw 7 to pass through, and the side walls of the material receiving dust suction box 2 are provided with second vertical grooves for the screw 7 to pass through. The first vertical groove 10 and the second vertical groove are equal in length and are at the same height. The rubber baffle 6 comprises an integrally formed first rectangular plate 11 and a second rectangular plate 12. The length of the second rectangular plate 12 is the same as that of the first rectangular plate 11, and the width of the second rectangular plate 12 is smaller than that of the first rectangular plate 11. Two T-shaped sliding blocks 13 adapted to the two T-shaped slide grooves 9 are fixedly connected to the first rectangular plate 11, and the area of ​​the first rectangular plate 11 is larger than that of the grain receiving port 4.

[0017] The screws 7 fixed on both sides of the rubber baffle 6 pass through the first vertical groove 10 and the second vertical groove in sequence from the inside of the material receiving and dust collecting box 2 and are fixed to the outer wall of the material receiving and dust collecting box 2 through washers and nuts 14.

[0018] An air suction fan is provided on the upper part of the material receiving and dust collecting box 2.

[0019] The width of the second rectangular plate 12 is slightly smaller than the distance between the two T-shaped slide grooves 9 , and the thickness of the second rectangular plate 12 is slightly smaller than the thickness of the T-shaped slide grooves 9 .

[0020] One end of the screw rod 7 passes through the side wall of the first rectangular plate 11 and is screwed into the first rectangular plate 11 to achieve the fixed connection between the screw rod 7 and the rubber baffle 6 .

[0021] Working principle: The grain passes through the vibrating screen 1 to vibrate up the light dust entrained in the grain and initially separate it, and then the grain and the light dust entrained by it that has not been separated enter the receiving dust suction box 2. The staff adjusts the height of the screw 7 on the positioning plate 8 according to the size of the grain particles. For grains with large particle sizes, the distance between the first rectangular plate 11 and the lower edge of the grain receiving port 4 of the receiving dust suction box 2 is appropriately increased as needed (by sliding the screw 7 upward in the first vertical groove 10, and driving the two T-shaped sliders 13 to slide upward in the two T-shaped slide grooves 9). For grains with small particle sizes, the distance between the first rectangular plate 11 and the lower edge of the grain receiving port 4 is reduced (by sliding the screw 7 downward in the first vertical groove 10, and driving the two T-shaped sliders 13 to slide downward in the two T-shaped slide grooves 9), so that the grain can be more fully dusted when it falls in. The present invention arranges a discharge air-blocking mechanism of the vibrating screen at the connection between the vibrating screen and the material receiving dust suction box to achieve the purpose of adjusting the passing gap of grain between the vibrating screen and the material receiving dust suction box, so that the dust removal of grain can be adjusted according to the size of grain particles when the grain comes out of the vibrating screen and enters the material receiving dust suction box for dust removal.

Claims

1. A discharge air-blocking mechanism for a vibrating screen, characterized in that It is arranged at the connection between a vibrating screen (1) and a material receiving dust suction box (2) of a grain vibrating screen dust removal device, the vibrating screen (1) and the material receiving dust suction box (2) are both mounted on a frame (3) of the grain vibrating screen dust removal device, a rectangular grain receiving opening (4) is arranged on the side wall of the material receiving dust suction box (2) close to the vibrating screen (1), and the grain receiving opening (4) is connected to the discharge end of the vibrating screen (1); The material discharging air-blocking mechanism comprises a vertically arranged rubber baffle (6), screws (7) fixedly connected to both sides of the rubber baffle (6), a positioning plate (8) arranged on the frame (3) and located on both sides of the material receiving dust suction box (2), and two T-shaped slide grooves (9) vertically arranged on the inner wall of the material receiving dust suction box (2) and located on both sides of the grain receiving port (4), the positioning plate (8) being provided with a first vertical groove (10) for the screw (7) to pass through, and the side walls of both sides of the material receiving dust suction box (2) being provided with a second vertical groove (10) for the screw (7) to pass through. The first vertical groove (10) and the second vertical groove are of equal length and at the same height, the rubber baffle (6) comprises a first rectangular plate (11) and a second rectangular plate (12) which are integrally formed, the length of the second rectangular plate (12) is the same as that of the first rectangular plate (11), the width of the second rectangular plate (12) is smaller than that of the first rectangular plate (11), two T-shaped sliding blocks (13) adapted to the two T-shaped sliding grooves (9) are fixedly connected to the first rectangular plate (11), and the area of ​​the first rectangular plate (11) is larger than the area of ​​the grain receiving port (4); The screws (7) fixedly connected to both sides of the rubber baffle (6) pass through the first vertical groove (10) and the second vertical groove in sequence from the inside of the material receiving and dust collecting box (2) and are fixed to the outer wall of the material receiving and dust collecting box (2) through washers and nuts (14); An air suction fan is provided on the upper part of the material receiving and dust collecting box (2); One end of the screw rod (7) passes through the side wall of the first rectangular plate (11) and is screwed into the interior of the first rectangular plate (11) to achieve fixed connection between the screw rod (7) and the rubber baffle (6).

2. A discharge air-blocking mechanism for a vibrating screen according to claim 1, characterized in that: The width of the second rectangular plate (12) is slightly smaller than the distance between the two T-shaped slide grooves (9), and the thickness of the second rectangular plate (12) is slightly smaller than the thickness of the T-shaped slide grooves (9).

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