Mineral powder sieving device

Abstract

The utility model relates to the field of mineral powder production, in particular to a mineral powder screening device which comprises a box body, a screening hopper is connected in the box body in a rotating mode, the screening hopper is arranged in an inclined mode, a feeding port and a discharging port are formed in the box body, elastic filter cloth is fixedly connected to the inner wall of the box body, and a pull rope is fixedly connected between the elastic filter cloth and the screening hopper. A dust collection mechanism is arranged on the outer wall of the box body, a telescopic pipe is slidably connected to the air inlet pipe through a sealing ring, the dust collection mechanism comprises a dust collection cover, the dust collection cover is communicated with the interior of the box body, elastic filter cloth can shield the dust collection cover, a fan is fixedly connected to the outer wall of the box body, and an air inlet pipe of the fan is communicated with the dust collection cover. According to the device, dust near the feeding port can be absorbed when mineral powder is screened, and the dust is prevented from being discharged through the feeding port.

Description

Technical Field

[0001] The utility model relates to the field of mineral powder production, in particular to a mineral powder screening device. Background Art

[0002] Mineral powder is a general term for stone powder and its substitutes that meet engineering requirements. It is the product of ore crushing and processing. It is the first step in ore processing and smelting, and one of the most important steps. When processing mineral powder, screening equipment is needed to screen the mineral powder and remove particles that do not reach the qualified size to ensure the quality of the mineral powder. A large amount of dust will be generated when screening the mineral powder. Even if some screening equipment uses closed box screening, the dust will be discharged through the feed port and dispersed into the air, causing air pollution and affecting the health of the staff. Utility Model Content

[0003] The utility model provides a mineral powder screening device. The device can absorb dust near a feed inlet when screening the mineral powder, and prevent the dust from being discharged through the feed inlet.

[0004] A mineral powder screening device comprises a box body, a screen bucket is rotatably connected inside the box body, the screen bucket is inclined, a feed inlet and a discharge port are provided on the box body, an elastic filter cloth is fixedly connected to the inner wall of the box body, a pull rope is fixedly connected between the elastic filter cloth and the screen bucket, and a telescopic tube of a dust suction mechanism is provided on the outer wall of the box body and is slidably connected to the air inlet pipe through a sealing ring.

[0005] The dust collection mechanism comprises a dust collection hood which is connected to the interior of the box body, the elastic filter cloth can shield the dust collection hood, a fan is fixedly connected to the outer wall of the box body, and an air inlet pipe of the fan is connected to the dust collection hood.

[0006] A cam is rotatably connected in the box body, and the cam contacts the bottom of the screen bucket.

[0007] The outer wall of the box body is fixedly connected with a driving motor, and the cam is fixedly connected to the output shaft of the driving motor.

[0008] The feed port is higher than the discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0010] Figure 1 and Figure 2 It is a schematic diagram of the overall structure of a mineral powder screening device;

[0011] Figure 3 is a schematic diagram of the structure of the pull rope;

[0012] Figure 4 It is a structural diagram of the box;

[0013] Figure 5 It is a structural cross-sectional view of the screen bucket;

[0014] Figure 6 It is a schematic diagram of the structure of the dust hood. DETAILED DESCRIPTION

[0015] See also Figure 1-4 , shows a schematic diagram of an embodiment of the utility model capable of automatically cleaning the elastic filter cloth 203, further,

[0016] A mineral powder screening device comprises a box body 101, in which a screen bucket 104 is rotatably connected via an axis, the screen bucket 104 is arranged tilted, a feed inlet 102 and a discharge port 103 are provided on the box body 101, an elastic filter cloth 203 is fixedly connected to the inner wall of the box body 101 via rivets, a pull rope 204 is fixedly connected between the elastic filter cloth 203 and the screen bucket 104, and a dust suction mechanism is arranged on the outer wall of the box body 101.

[0017] When using the screening device, first add the crushed mineral material to the screen bucket 104 through the feed port 102, and then control the screen bucket 104 to swing back and forth in the box 101, so that the screen bucket 104 vibrates. Since the screen bucket 104 is inclined, the mineral material on the screen bucket 104 can automatically slide downward along the inclined surface of the screen bucket 104. In the process of the mineral material sliding downward, the mineral powder can fall to the bottom of the box 101 through the leakage groove on the screen bucket 104, and the particles that do not meet the requirements will continue to slide downward along the screen bucket 104, and finally be discharged to the outside of the box 101 through the discharge port 103.

[0018] Since a large amount of dust is generated in the process of screening the mineral material, the dust will be discharged through the feed port 102, thereby polluting the surrounding air and affecting the health of the workers. At this time, the inside of the box 101 is sucked by the dust suction mechanism, so that a negative pressure is generated inside the box 101, and the dust generated near the feed port 102 can be gathered on the elastic filter cloth 203. The elastic filter cloth 203 plays a role in filtering the air. The air is discharged through the elastic filter cloth 203 and the dust suction mechanism, and the dust will accumulate on the elastic filter cloth 203, thereby achieving the purpose of dust reduction and preventing the dust generated when the mineral material is put into the screening bucket 104 from being discharged through the feed port 102.

[0019] When the sieve bucket 104 vibrates, since the elastic filter cloth 203 itself has elasticity, the elastic filter cloth 203 protrudes out of the box body 101 under the action of air suction of the dust suction mechanism. When the sieve bucket 104 pulls the elastic filter cloth 203 upward through the pull rope 204, the elastic filter cloth 203 protrudes into the box body 101, thereby achieving the effect of the elastic filter cloth 203 shaking itself, and the dust attached to the surface can fall to the bottom of the box body 101, thereby ensuring the air permeability of the elastic filter cloth 203.

[0020] See also Figure 4 , shows a schematic diagram of an embodiment of the utility model capable of extracting air from the box 101, and further,

[0021] The dust collection mechanism includes a dust collection hood 202 , which is connected to the inside of the box 101 . The elastic filter cloth 203 can shield the dust collection hood 202 . The outer wall of the box 101 is fixedly connected to the fan 201 by bolts, and the air inlet pipe of the fan 201 is connected to the dust collection hood 202 .

[0022] The air in the box 101 is extracted by the cooperation of the fan 201 and the dust hood 202, so as to achieve the purpose of dust reduction. The dust hood 202 is used to expand the suction range.

[0023] See also Figure 5 , shows a schematic diagram of an embodiment of making the screen bucket 104 reciprocate in the box body 101 according to the utility model, and further,

[0024] A cam 106 is rotatably connected to the box body 101 via a bearing. The cam 106 contacts the bottom of the screen bucket 104. When the cam 106 rotates, the screen bucket 104 generates a reciprocating swing in the box body 101, thereby realizing the function of vibrating and screening the mineral material.

[0025] See also Figure 2-3 , shows a schematic diagram of an embodiment of driving the cam 106 to rotate according to the utility model, and further,

[0026] The outer wall of the box body 101 is fixedly connected with a driving motor 105 by means of bolts, and the cam 106 is fixedly connected to the output shaft of the driving motor 105 by means of a key.

[0027] The driving motor 105 is used to drive the cam 106 to rotate, so that the screen bucket 104 can swing back and forth in the box body 101 .

[0028] See also Figure 4 , shows a schematic diagram of an embodiment of the utility model in which the mineral material can automatically slide down along the slope of the screen bucket 104, and further,

[0029] The feed port 102 is higher than the discharge port 103 , so that the ore can automatically slide down along the slope of the screen bucket 104 .

[0030] See also Figure 5 , shows a schematic diagram of an embodiment of preventing the ore particles rolling down from being stuck on the screen bucket 104 according to the utility model, and further,

[0031] The screen bucket 104 is provided with a plurality of strip-shaped drain grooves, which are parallel to the sides of the screen bucket 104 , so as to facilitate the ore particles to roll down and prevent the ore particles that roll down from getting stuck on the screen bucket 104 .

[0032] See also Figure 4 , shows a schematic diagram of an embodiment of the utility model in which the elastic filter cloth 203 has good elasticity and rust resistance, and further,

[0033] The elastic filter cloth 203 is made of polyester, and the elastic filter cloth 203 made of polyester has good elasticity and rust resistance.

[0034] See also Figure 3 , shows a schematic diagram of an embodiment of the present invention in which the pull rope 204 has good anti-rust and anti-corrosion properties. Further,

[0035] The pull rope 204 is made of nylon, and the pull rope 204 made of nylon has good anti-rust and anti-corrosion properties.

[0036] See also Figure 4 , shows a schematic diagram of an embodiment of the utility model for ensuring that the elastic filter cloth 203 can protrude outward when the dust cover 202 inhales air, and further,

[0037] The diameter of the dust hood 202 is the same as that of the elastic filter cloth 203, so as to ensure that the elastic filter cloth 203 can protrude outward when the dust hood 202 inhales air.

[0038] See also Figure 5 , shows a schematic diagram of an embodiment of the present invention that can ensure that the screen bucket 104 is always in close contact with the cam 106. Further,

[0039] A torsion spring is welded at the rotation connection between the sieve bucket 104 and the box body 101 , and the torsion spring makes the sieve bucket 104 have a tendency to rotate downward, thereby ensuring that the sieve bucket 104 is always closely attached to the cam 106 , and ensuring the vibration frequency of the sieve bucket 104 .

Claims

1. A mineral powder screening device, characterized in that: The invention comprises a box body (101), a sieve bucket (104) is rotatably connected inside the box body (101), the sieve bucket (104) is arranged tilted, a feed inlet (102) and a discharge outlet (103) are provided on the box body (101), an elastic filter cloth (203) is fixedly connected to the inner wall of the box body (101), a pull rope (204) is fixedly connected between the elastic filter cloth (203) and the sieve bucket (104), and a dust suction mechanism is arranged on the outer wall of the box body (101).

2. A mineral powder screening device according to claim 1, characterized in that: The dust collection mechanism comprises a dust collection hood (202), the dust collection hood (202) is connected to the inside of the box (101), the elastic filter cloth (203) can shield the dust collection hood (202), the outer wall of the box (101) is fixedly connected to a fan (201), and the air inlet pipe of the fan (201) is connected to the dust collection hood (202).

3. A mineral powder screening device according to claim 1, characterized in that: A cam (106) is rotatably connected inside the box body (101), and the cam (106) contacts the bottom of the screen bucket (104).

4. A mineral powder screening device according to claim 3, characterized in that: The outer wall of the box body (101) is fixedly connected to a driving motor (105), and the cam (106) is fixedly connected to the output shaft of the driving motor (105).

5. The mineral powder screening device according to claim 1, characterized in that: The feed port (102) is higher than the discharge port (103).

6. The mineral powder screening device according to claim 1, characterized in that: The sieve bucket (104) is provided with a plurality of strip-shaped drain grooves, and the strip-shaped drain grooves are parallel to the side of the sieve bucket (104).

7. The mineral powder screening device according to claim 1, characterized in that: The elastic filter cloth (203) is made of polyester.

8. The mineral powder screening device according to claim 1, characterized in that: The pull rope (204) is made of nylon.

9. The mineral powder screening device according to claim 2, characterized in that: The diameter of the dust cover (202) is the same as that of the elastic filter cloth (203).

10. The mineral powder screening device according to claim 1, characterized in that: A torsion spring is fixedly connected to the rotation connection between the screen bucket (104) and the box body (101).

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