Multi-stage screening device
The power transmission mechanism and dust removal device of the multi-stage screening device solve the problems of low quartz sand screening efficiency and dust pollution, and achieve high-efficiency screening and dust purification.
Patent Information
- Application Number
- CN202422437714.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-10
AI Technical Summary
Existing quartz sand screening methods are inefficient, require multiple operations, and generate large amounts of dust, causing human damage and air pollution.
A multi-stage screening device is adopted, and a power transmission mechanism is used to drive the swing wheel mechanism to rotate back and forth. Combined with a sealing cover and a dust removal device, efficient screening and dust purification are achieved.
It improves screening efficiency, reduces dust leakage, protects human health and improves air quality.
Smart Images
Figure CN223300421U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screening devices, in particular to a multi-stage screening device. Background Art
[0002] Quartz sand is quartz particles made by crushing quartz stone. Quartz stone is a non-metallic mineral, a hard, wear-resistant, chemically stable silicate mineral. Its main mineral component is silicon dioxide. The color of quartz sand is milky white or colorless and translucent, with a Mohs hardness of 7. Quartz sand is an important industrial mineral raw material and a non-chemical hazardous substance. It is widely used in glass, casting, ceramics and refractory materials, ferrosilicon smelting, metallurgical flux, metallurgy, construction, chemical industry, plastics, rubber, abrasives, filter materials and other industries.
[0003] During the processing of quartz sand, quartz sand particles of different sizes need to be screened and classified. The current screening method often uses a single screen to shake vertically up and down for screening. However, a single screening method still results in quartz sand particles of significantly different sizes after screening. Different screens need to be used multiple times for operation. The screening speed is slow, which is not conducive to the processing of quartz sand. In addition, a large amount of dust will be generated during the screening of quartz sand, which will cause damage to the human body and pollute the air. Therefore, it is necessary to develop a multi-stage screening device with high screening efficiency, good screening effect, and the ability to quickly absorb and purify dust. Utility Model Content
[0004] In response to the above technical problems, the utility model provides a multi-stage screening device with high screening efficiency, good screening effect, and the ability to quickly absorb and purify dust, so as to solve the current problems of slow quartz sand screening speed and the large amount of dust generated during quartz sand screening causing damage to the human body and air pollution.
[0005] The transmission mechanism that this invention relates to is that this invention relates to a multi-stage screening device, comprises a screening box, and this screening box has box walls that are opposite to each other and are rotatably connected to the box walls of opposite sides of the screening box, and this screening box has a driving rotating shaft at one end which is fixedly connected to the box walls of opposite sides of the screening box, and this driving rotating shaft has one end which is fixedly connected to the box walls of opposite sides of the screening box, and this driving rotating shaft has one end which is fixedly connected to the
[0006] Furthermore, channels are opened inside the box walls on opposite sides of the screening box, and the driving rotating shaft and the driven rotating shaft pass through the channels, which is convenient for fixing the single-sided swing wheel and the double-sided swing wheels.
[0007] Furthermore, the power transmission mechanism includes a first reciprocating motor and a second reciprocating motor. The first reciprocating motor is located at the upper outer side of the screening box. A first driving wheel is fixedly connected to the output end of the first reciprocating motor, and the first driving wheel is transmitted to the first pulley through a belt. The second reciprocating motor is located at the lower outer side of the screening box. A second driving wheel is fixedly connected to the output end of the second reciprocating motor, and the second driving wheel is transmitted to the second pulley through a belt.
[0008] Furthermore, a fixed platform is fixedly connected to the upper outer side of the screening box, and the first reciprocating motor is fixed to the fixed platform.
[0009] Furthermore, the discharge port is located below the discharge end of the screen, which is convenient for collecting the quartz sand after screening.
[0010] Furthermore, the dust removal device includes a blowing device and a dust collector. The bottom of the dust collector is fixedly connected to a support leg, the middle of the dust collector is fixedly connected to a dust inlet pipe, the top of the dust collector is fixedly connected to the blowing device, the outside of the blowing device is fixedly connected to an air outlet pipe, the end of the air outlet pipe is fixedly connected to an induced draft fan and an air outlet, and an ash hopper is provided at the bottom of the dust collector.
[0011] Furthermore, the dust inlet pipe is fixedly connected to the dust outlet pipe, which facilitates the introduction of dust into the dust collector.
[0012] Furthermore, a collecting box is slidably connected to the bottom of the screening box to facilitate the collection of the smallest particle size screened quartz sand.
[0013] Compared with the prior art, the present invention has the following advantages:
[0014] The utility model provides a screening box and a fully enclosed material guide pipe, and the screening box is fully enclosed with a sealing cover to ensure that dust does not leak out during screening, thereby preventing damage to the human body and air pollution; a power transmission mechanism is used to drive the first pulley and the second pulley to rotate, and then the swing wheel mechanism is driven to rotate back and forth through the rotating shaft, and the swing wheel mechanism drives multiple groups of screens to move back and forth through the traction chain to screen the quartz sand, with a significant screening effect and improved screening efficiency; a discharge port and a discharge trough are provided to facilitate the collection of the screened quartz sand; a dust removal device is provided to quickly absorb and collect the dust in the screening box and discharge the evolved gas. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the structure of the device of the utility model.
[0016] Figure 2 This is a cross-sectional view of the screening box structure of the present utility model.
[0017] Figure 3 For this utility model Figure 2 Top view of point A in the middle.
[0018] Figure 4 For this utility model Figure 2 Front view at point A in the middle.
[0019] Figure 5 This is the left view of the screening box of the present invention.
[0020] Figure 6 This is a schematic diagram of the structure of the dust removal device of the utility model.
[0021] In the figure: 1. Screening box, 2. Fully enclosed material guide pipe, 3. Discharge port, 4. Discharge chute, 5. Driven shaft, 6. Double-sided swing wheels, 7. Blowing device, 8. Air outlet pipe, 9. Dust collector, 10. Ash hopper, 11. Support legs, 12. Single-sided swing wheel, 13. First reciprocating motor, 14. First driving wheel, 15. Fixed platform, 16. Screen, 17. Second reciprocating motor, 18. Second driving wheel, 19. Collecting box, 20. Driving shaft, 21. First pulley, 22. Drag chain, 23. Connecting block, 24. Second pulley, 25. Dust outlet, 26. Dust inlet, 27. Air outlet, 28. Induced draft fan. DETAILED DESCRIPTION
[0022] The present invention will be further described below with reference to the accompanying drawings.
[0023] like Figures 1-6 The multi-stage screening device shown in the figure comprises a screening box 1, a fully enclosed material guide pipe 2 is fixedly connected to the top of the screening box 1, a driving shaft 20 and a driven shaft 5 are rotatably connected to the box walls on opposite sides of the screening box 1, one end of the top driving shaft 20 is fixedly connected to a first pulley 21, and one end of the bottom driving shaft 20 is fixedly connected to a second pulley 24, a single-sided swing wheel 12 is connected to the driving shaft 20, and both ends of the driven shaft 5 are fixedly connected to double-sided swing wheels 6, and a single-sided swing wheel 12 is provided A connecting block 23 is provided on each side of the swing wheel 6. A traction chain 22 is connected to the connecting block 23. The other end of the traction chain 22 is connected to the screen 16. A power transmission mechanism is provided on the outside of the screening box 1. The power transmission mechanism is transmitted to the first pulley 21 and the second pulley 24. A discharge port 3 is provided on the outside of the screening box 1. A discharge trough 4 is fixedly connected to the bottom of the discharge port 3. A dust outlet pipe 25 is fixedly connected to the lower part of the outside of the screening box 1. The dust outlet pipe 25 is connected to a dust removal device.
[0024] In order to prevent dust from leaking out during screening, the screening box 1 is fully enclosed by a sealing cover.
[0025] In order to facilitate the fixing of the single-sided swing wheel 12 and the double-sided swing wheels 6, channels are opened inside the box walls on two opposite sides of the screening box 1, and the driving shaft 20 and the driven shaft 5 pass through the channels.
[0026] In order to facilitate driving the first pulley 21 and the second pulley 24, a power transmission mechanism is provided, which includes a first reciprocating motor 13 and a second reciprocating motor 17. The first reciprocating motor 13 is located at the upper outer side of the screening box 1, and the output end of the first reciprocating motor 13 is fixedly connected to the first driving wheel 14, and the first driving wheel 14 is transmitted to the first pulley 21 through a belt. The second reciprocating motor 17 is located at the lower outer side of the screening box 1, and the output end of the second reciprocating motor 17 is fixedly connected to the second driving wheel 18, and the second driving wheel 18 is transmitted to the second pulley 24 through a belt.
[0027] It should be noted that the first reciprocating motor 13 and the second reciprocating motor 17 maintain synchronous operation and complete the back-and-forth rotation in unison.
[0028] In order to ensure the stable operation of the first reciprocating motor 13 , a fixed platform 15 is fixedly connected to the upper outer side of the screening box 1 , and the first reciprocating motor 13 is fixed above the fixed platform 15 .
[0029] In order to facilitate the collection of the screened quartz sand, the discharge port 3 is located below the discharge end of the screen 16.
[0030] In order to facilitate the purification of dust, a dust removal device is provided, which includes a blowing device 7 and a dust collector 9. The bottom of the dust collector 9 is fixedly connected to a support leg 11, the middle of the dust collector 9 is fixedly connected to a dust inlet pipe 26, the top of the dust collector 9 is fixedly connected to the blowing device 7, the outside of the blowing device 7 is fixedly connected to an air outlet pipe 8, the end of the air outlet pipe 8 is fixedly connected to an air outlet 27 and an induced draft fan 28, and an ash hopper 10 is provided at the bottom of the dust collector 9.
[0031] In order to introduce dust into the dust collector 9 , the dust inlet pipe 26 is fixedly connected to the dust outlet pipe 25 .
[0032] In order to collect the smallest particle size quartz sand, a collecting box 19 is slidably connected to the bottom of the screening box 1.
[0033] The working process of this embodiment is as follows:
[0034] First, start the first reciprocating motor 13, the second reciprocating motor 17, the dust collector 9, the blowing device 7 and the induced draft fan 28; secondly, pour the unscreened quartz sand into the screening box 1 through the fully enclosed material guide pipe 2, the first reciprocating motor 13 drives the first driving wheel 14, the first driving wheel 14 drives the first pulley 21 through the belt, and then drives the single-sided swing wheel 12 to rotate clockwise through the active rotating shaft 20. After rotating to the specified position, the second reciprocating motor 17 drives the second driving wheel 18, the second driving wheel 18 drives the second pulley 24 through the belt, and then drives the double-sided swing wheels 6 to rotate counterclockwise through the driven rotating shaft 5, and repeats the cycle, thereby completing the back and forth swing of multiple screens 16 to screen the quartz sand, and the screening is completed. The finished quartz sand passes through the discharge end of the screen 16 and is collected into the collection device along the discharge trough 4. The quartz sand with the smallest particle size falls into the collection box 19 for collection. Then, the dust generated in the screening box 1 passes through the dust outlet pipe 25 and enters the dust collector 9 along the dust inlet pipe 26. The dust collector 9 uses the filter bag to retain the dust on the outside of the filter bag. The controller regularly inputs a pulse signal to the pulse valve in the blowing device 7. The blowing device 7 blows the dust adhering to the surface of the filter bag down and collects it in the ash hopper 10. The treated clean gas is pulled by the induced draft fan 28 through the exhaust pipe 8 and discharged from the exhaust port 27. Finally, the first reciprocating motor 13, the second reciprocating motor 17, the dust collector 9, the blowing device 7 and the induced draft fan 28 are turned off.
Claims
1. A multi-stage screening device, comprising a screening box (1), characterized in that: The top of the screening box (1) is fixedly connected with a fully enclosed material guide pipe (2), and the box walls on both sides of the screening box (1) are rotatably connected with a driving shaft (20) and a driven shaft (5), one end of the driving shaft (20) at the top is fixedly connected with a first pulley (21), and one end of the driving shaft (20) at the bottom is fixedly connected with a second pulley (24), a single-sided swing wheel (12) is connected to the driving shaft (20), and two ends of the driven shaft (5) are fixedly connected with double-sided swing wheels (6), a connecting block (23) is provided on the single-sided swing wheel (12), and the double-sided swing wheels ( 6) is provided with two connecting blocks (23), the connecting block (23) is connected to a traction chain (22), the other end of the traction chain (22) is connected to the screen (16), a power transmission mechanism is provided on the outside of the screening box (1), the power transmission mechanism is arranged to be driven by the first pulley (21) and the second pulley (24), a discharge port (3) is provided on the outside of the screening box (1), a discharge trough (4) is fixedly connected below the discharge port (3), a dust outlet (25) is fixedly connected to the lower part of the outside of the screening box (1), and the dust outlet (25) is connected to a dust removal device.
2. The multi-stage screening device according to claim 1, characterized in that: Channels are provided inside the box walls on opposite sides of the screening box (1), and the driving rotating shaft (20) and the driven rotating shaft (5) pass through the channels.
3. The multi-stage screening device according to claim 1, characterized in that: The power transmission mechanism comprises a first reciprocating motor (13) and a second reciprocating motor (17), wherein the first reciprocating motor (13) is located at the upper outer side of the screening box (1), a first driving wheel (14) is fixedly connected to the output end of the first reciprocating motor (13), and the first driving wheel (14) is driven by the first pulley (21) through a belt, and the second reciprocating motor (17) is located at the lower outer side of the screening box (1), a second driving wheel (18) is fixedly connected to the output end of the second reciprocating motor (17), and the second driving wheel (18) is driven by the second pulley (24) through a belt.
4. The multi-stage screening device according to claim 3, characterized in that: A fixed platform (15) is fixedly connected to the upper outer portion of the screening box (1), and the first reciprocating motor (13) is fixed above the fixed platform (15).
5. The multi-stage screening device according to claim 1, characterized in that: The discharge port (3) is located below the discharge end of the screen (16).
6. The multi-stage screening device according to claim 1, characterized in that: The dust removal device comprises a blowing device (7) and a dust collector (9); the bottom of the dust collector (9) is fixedly connected to a support leg (11); the middle of the dust collector (9) is fixedly connected to a dust inlet pipe (26); the top of the dust collector (9) is fixedly connected to the blowing device (7); the outside of the blowing device (7) is fixedly connected to an air outlet pipe (8); the end of the air outlet pipe (8) is fixedly connected to an air outlet (27) and an induced draft fan (28); and an ash hopper (10) is provided at the bottom of the dust collector (9).
7. The multi-stage screening device according to claim 6, characterized in that: The dust inlet pipe (26) is fixedly connected to the dust outlet pipe (25).
8. The multi-stage screening device according to claim 1, characterized in that: The bottom of the screening box (1) is slidably connected to a collecting box (19).