Noise reduction spiral vibration filtering equipment

Abstract

The utility model relates to the technical field of plastic pipeline processing, in particular to noise reduction spiral vibration filtering equipment which comprises a filtering device and a vibration device, the filtering device comprises an outer barrel and an inner barrel which are coaxially arranged, and a spiral screen and a spiral partition plate which are arranged between the outer barrel and the inner barrel from top to bottom; the outer barrel is provided with a feeding port, a fine material discharging port and an impurity discharging port, a raw material bin is formed in the space between the outer barrel and the spiral screen, a fine material bin is formed in the space between the spiral screen and the spiral partition plate, the fine material bin is connected with the fine material discharging port, the raw material bin is connected with the feeding port and the impurity discharging port, and the vibration device comprises a supporting piece, a driving piece and a sliding piece. The filtering device is in sliding connection with the sliding piece, and the driving piece is used for driving the filtering device to move back and forth in the vertical direction. The spiral screen increases the filtering area and improves the filtering efficiency, the driving device is in sliding connection with the filtering device in the vertical direction, the filtering device can only move in the vertical direction, the total amplitude is reduced, and noise is reduced.

Description

Technical Field

[0001] This utility model relates to the field of plastic pipe processing technology, and more specifically, to a noise-reducing spiral vibration filtration device. Background Technology

[0002] In the PVC plastic pipe manufacturing industry, impurities may be mixed into the raw materials during production, transportation and unpacking. The impurities mixed in the raw materials will affect the performance of the molded products. Therefore, filtration equipment needs to be installed in the PVC raw material conveying and supply system to filter the raw materials.

[0003] Existing technology discloses a sorting device, including an inner cylinder and an outer cylinder coaxially arranged. A first spiral screen, a second spiral screen, and a spiral partition plate are sequentially arranged from top to bottom between the outer wall of the inner cylinder and the inner wall of the outer cylinder. All three spiral screens are spiral structures, with their inner edges fixedly connected to the outer wall of the inner cylinder and their outer edges fixedly connected to the inner wall of the outer cylinder. Both the first and second spiral screens have screen holes, with the diameter of the screen holes on the first spiral screen being larger than that on the second spiral screen. A vibrating motor is installed inside the inner cylinder, and several ventilation holes are provided on the inner cylinder. This invention provides a sorting device that can significantly extend the effective sorting distance, thereby significantly improving sorting accuracy and efficiency, and avoiding environmental pollution during the sorting process.

[0004] This device can also be used for screening PVC raw materials. However, during use, the device will generate a lot of noise due to high-frequency vibration, which will affect the working environment. Utility Model Content

[0005] The purpose of this invention is to overcome the problem of high noise in existing sorting devices and to provide a noise-reducing spiral vibration filter that can reduce the noise generated during the screening process.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A noise-reducing spiral vibration filtration device is provided, comprising a filtration unit and a vibration unit. The filtration unit includes an outer cylinder and an inner cylinder arranged coaxially, and a spiral screen and a spiral baffle arranged from top to bottom. The outer edges of the spiral screen and the spiral baffle are connected to the inner wall of the outer cylinder, and the inner edges of the spiral screen and the spiral baffle are connected to the outer wall of the inner cylinder. The outer cylinder has an inlet, a fine material outlet, and an impurity outlet. The space between the outer cylinder and the spiral screen forms a raw material hopper, and the space between the spiral screen and the spiral baffle forms a fine material hopper. The fine material hopper is connected to the fine material outlet, and the raw material hopper is connected to the inlet and the impurity outlet. The vibration unit includes a support member, a drive member mounted on the support member, and a sliding member mounted on the support member. The filtration unit is slidably connected to the sliding member in the vertical direction, and the drive member is used to drive the filtration unit to reciprocate in the vertical direction.

[0008] This utility model discloses a noise-reducing spiral vibration filter. Raw materials enter the raw material hopper through the inlet. Due to the screen holes on the spiral screen, a portion of the raw material is filtered, with smaller materials (called fine particles) passing through the screen holes and entering the fine particle hopper. The remaining raw material flows downwards along the spiral screen and is gradually filtered. Impurities that fail to pass through the screen holes remain in the raw material hopper and are discharged through the impurity outlet. The filtered fine particles exit through the fine particle outlet. The spiral filter significantly increases the filtration area within a small space, thus improving the overall filtration efficiency. During this process, the drive unit drives the filter to reciprocate vertically, causing the raw material in the hopper to move, accelerating the screening efficiency. Because the sliding component is slidably connected to the filter in the vertical direction, the filter can only move in the vertical direction, avoiding movement in other directions, reducing the overall amplitude, and thus lowering the noise.

[0009] Furthermore, the output end of the drive component is connected to the bottom surface of the outer cylinder, and the sliding component is slidably connected to the inner wall of the inner cylinder. The support component provides support for the drive component and the sliding component. The sliding component is slidably connected to the inner wall of the inner cylinder, and the inner cylinder is restricted by the sliding component, thereby restricting the entire filtration device and improving stability.

[0010] Furthermore, the sliding member is provided with at least two sliders, which are slidably connected to the inner wall of the inner cylinder. Using sliders to slidably connect to the inner cylinder instead of a single sliding rod results in a smaller contact area, less friction, and better smoothness.

[0011] Furthermore, the output end of the drive component is also provided with an elastic element, one end of which is fixedly connected to the bottom surface of the outer cylinder, and the elastic force of the elastic element is in the vertical direction. The elastic element can continuously accumulate and release elastic potential energy, resulting in a higher vibration frequency, faster filtration efficiency, and better effect.

[0012] Furthermore, it also includes a feeding device and a discharging device. The feeding device includes a first conveying component connected to the feed inlet and a first fixing component connected to the first conveying component. The discharging device includes a second conveying component connected to the fine material discharge outlet and a second fixing component connected to the second conveying component. The first fixing component is used to connect to the feed pipe, and the second fixing component is used to connect to the discharge pipe. The vibration device is installed on top of the second fixing component. Through the first and second fixing components, the device can be directly fixed between the feed pipe and the discharge pipe without the need for additional supports. It can achieve simultaneous filtration and material conveying. At the same time, the feed pipe and the discharge pipe are connected through the device, forming a sealed state, reducing dust diffusion and thus reducing working environment pollution, and also avoiding waste of raw materials.

[0013] Furthermore, the first and second conveying components can deform in the vertical direction. When the vibrating device drives the filtering device to vibrate in the vertical direction, the first and second conveying components will deform, preventing vibration from being transmitted to the feed pipe and discharge pipe, thus further reducing noise.

[0014] Furthermore, the spiral spacing of the spiral screen is the same as that of the spiral baffle, and the spiral helix angle of the spiral screen is the same as that of the spiral baffle. This ensures that the inner diameter of the fine material bin is the same everywhere, avoiding situations where the inner diameter of the fine material bin is too large in some places, wasting space, or too small in some places, causing raw material blockage.

[0015] Furthermore, the spiral angle of the spiral screen is between 5° and 20°. A suitable spiral angle is crucial; too large an angle will cause the raw material to be fed too quickly, resulting in insufficient filtration, while too small an angle will cause the raw material to be fed too slowly, leading to low filtration efficiency.

[0016] Furthermore, both the fine material outlet and the impurity outlet are located at the bottom of the outer cylinder, and chamfers are provided at the connection points between the fine material outlet and the outer cylinder, as well as the connection points between the impurity outlet and the outer cylinder. This facilitates the exit of fine materials or impurities from the outlets and prevents accumulation.

[0017] Furthermore, the filtration device is also equipped with a feed baffle. One end of the feed baffle is connected to the inner top surface of the outer cylinder, and the other end is connected to the outer top surface of the inner cylinder. The feed baffle is located below the feed inlet. The feed baffle guides the material entering from the feed inlet, causing the raw material to fall to the top of the spiral screen, ensuring that the raw material is fully filtered.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. Spiral screens can greatly increase the filtration area in a small space, thus improving the overall filtration efficiency. The drive device and the filter device are slidably connected in the vertical direction, so the filter device can only move in the vertical direction, avoiding movement in other directions, reducing the total amplitude, and thus reducing noise.

[0020] 2. The elastic element design allows for the continuous accumulation and release of elastic potential energy, resulting in higher vibration frequency, faster filtration efficiency, and better performance.

[0021] 3. The setting of the feeding and discharging devices allows the equipment to be directly fixed between the feeding and discharging pipes without the need for additional supports. At the same time, it enhances the overall sealing performance, reduces the spread of dust and the resulting pollution of the working environment, and also avoids the waste of raw materials.

[0022] 4. The first and second conveying components can deform in the vertical direction to prevent vibration from being transmitted to the feed pipe and discharge pipe, thereby further reducing noise. Attached Figure Description

[0023] Figure 1 A schematic diagram of a noise-reducing spiral vibration filter device;

[0024] Figure 2 This is a schematic diagram of the filtration device.

[0025] Figure 3 This is a schematic diagram of the internal structure of the filtration device;

[0026] Figure 4 for Figure 3 A magnified view of a portion of position A;

[0027] Figure 5 This is a structural diagram of the sliding component, the support component, and the second fixing component.

[0028] In the attached diagram: 100, feeding device; 110, first conveying component; 120, first fixing component; 200, discharging device; 210, second conveying component; 220, second fixing component; 300, filtering device; 310, baffle; 320, outer cylinder; 321, feed inlet; 322, fine material outlet; 323, impurity outlet; 324, spring seat; 330, inner cylinder; 340, spiral screen; 350, spiral partition; 360, raw material bin; 370, fine material bin; 400, vibrating device; 410, support component; 420, driving component; 430, sliding component; 431, slider; 440, elastic component. Detailed Implementation

[0029] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0030] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0031] Example 1

[0032] A noise-reducing spiral vibration filtration device, such as Figure 1-5 As shown, the system includes a filtration device 300 and a vibration device 400. The filtration device 300 includes a baffle 310, an outer cylinder 320 and an inner cylinder 330 arranged coaxially, and a spiral screen 340 and a spiral baffle 350 arranged from top to bottom. The surface of the spiral screen 340 is provided with screen holes. The outer edges of the spiral screen 340 and the spiral baffle 350 are connected to the inner wall of the outer cylinder 320, and the inner edges of the spiral screen 340 and the spiral baffle 350 are connected to the outer wall of the inner cylinder 330. The spiral pitch of the spiral screen 340 is the same as that of the spiral baffle 350, and the spiral helix angle of both the spiral screen 340 and the spiral baffle 350 is 5°. Figure 2 As shown, the outer cylinder 320 is provided with a feed inlet 321, a fine material outlet 322, and an impurity outlet 323. Both the fine material outlet 322 and the impurity outlet 323 are located at the bottom of the outer cylinder 320. Chamfers are provided at the connection points between the fine material outlet 322 and the outer cylinder 320, and between the impurity outlet 323 and the outer cylinder 320. One end of the feed baffle 310 is connected to the inner top surface of the outer cylinder 320, and the other end is connected to the outer top surface of the inner cylinder 330. The feed baffle 310 is located below the feed inlet 321. Figure 3 and Figure 4As shown, the space between the outer cylinder 320 and the spiral screen 340 forms a raw material hopper 360, and the space between the spiral screen 340 and the spiral partition 350 forms a fine material hopper 370. The fine material hopper 370 is connected to the fine material outlet 322, and the raw material hopper 360 is connected to the feed inlet 321 and the impurity outlet 323. The vibration device 400 includes a support member 410, a drive member 420 mounted on the support member 410, and a sliding member 430 mounted on the support member 410. The filter device 300 is slidably connected to the sliding member 430 in the vertical direction, and the drive member 420 is used to drive the filter device 300 to reciprocate in the vertical direction.

[0033] The working principle of this embodiment is as follows:

[0034] This utility model discloses a noise-reducing spiral vibration filter. Raw materials enter the raw material hopper 360 through the feed inlet 321. Because the spiral screen 340 has sieve holes, a portion of the raw material is filtered. Smaller materials, referred to as fines, pass through the sieve holes and enter the fines hopper 370. Another portion of the raw material flows downwards along the spiral screen 340 and is gradually filtered. Impurities that fail to pass through the sieve holes remain in the raw material hopper 360 and are discharged through the impurity outlet 323. The filtered fines exit from the fines outlet 322. The spiral filter significantly increases the filtration area within a small space, thus improving the overall filtration efficiency. During this process, the drive component 420 drives the filter device 300 to reciprocate vertically, causing the raw materials in the raw material hopper 360 to move, accelerating the screening efficiency. Because the sliding component 430 is slidably connected to the filter device 300 in the vertical direction, the filter device 300 can only move in the vertical direction, avoiding movement in other directions. This reduces the overall amplitude and thus lowers the noise.

[0035] The beneficial effects of this embodiment are as follows:

[0036] The spiral screen 340 can greatly increase the filtration area in a small space, thus improving the overall filtration efficiency. The sliding part 430 is slidably connected to the filter device 300 in the vertical direction. Therefore, the filter device 300 can only move in the vertical direction, avoiding movement in other directions. The total amplitude is reduced, resulting in less noise. The spiral spacing and spiral helix angle of the spiral screen 340 and the spiral baffle 350 are the same, ensuring that the inner diameter of the fine material bin 370 is the same everywhere. This avoids the inner diameter of the fine material bin 370 being too large in some places, wasting space, or too small in some places, causing raw material blockage. The fine material outlet 322 and the impurity outlet 323 are both located at the bottom of the outer cylinder 320, and their connection is chamfered to facilitate the exit of fine material or impurities from the outlet and avoid accumulation. The feed baffle 310 guides the material entering from the feed inlet 321, causing the raw material to fall to the top of the spiral screen 340, ensuring that the raw material is fully filtered.

[0037] Example 2

[0038] This embodiment is a second embodiment of a noise-reducing spiral vibration filter device. This embodiment is similar to the first embodiment, except that, as shown in the example... Figure 1 and Figure 5 As shown, in this embodiment, the vibration device 400 includes a support member 410, two driving members 420 mounted on the support member 410, a sliding member 430 mounted on the support member 410, and an elastic member 440 mounted on the output end of the driving member 420. The support member 410 is fixedly connected to the discharge device 200. The output end of the driving member 420 is connected to the bottom surface of the outer cylinder 320. In this embodiment, the driving member 420 is a cylinder, but it can also be a linear motor, hydraulic cylinder, or other linear driving member. The elastic member 440 is a spring. Two sliders 431 are provided on the sliding member 430, and there is a certain distance between the two sliders 431. The sliders 431 are slidably connected to the inner wall of the inner cylinder 330. Two spring seats 324 are provided on the bottom surface of the outer cylinder 320. One end of the elastic member 440 is fixed in the spring seat 324, and the elastic force of the elastic member 440 is in the vertical direction.

[0039] The working principle of this embodiment is as follows:

[0040] The cylinder drives the spring to move, and the spring force is used to achieve vibration. The slider 431 slides relative to the inner wall of the inner cylinder 330, which restricts the vibration to the vertical direction. The support 410 is fixed to the discharge device 200 and provides support for the drive 420 and the slider 430. The slider 430 is slidably connected to the inner wall of the inner cylinder 330. The slider 430 limits the inner cylinder 330, thereby limiting the entire filter device 300, which has better stability. Using the slider 431 to slide with the inner cylinder 330 instead of using a whole sliding rod results in a smaller contact area, less friction, and better smoothness. There are two sliders 431, which is one more support point than one slider 431, resulting in better stability. The elastic element 440 can continuously accumulate and release elastic potential energy, which makes the vibration frequency higher, the filtration efficiency faster, and the effect better.

[0041] The remaining working principles of this embodiment are the same as those of Embodiment 1.

[0042] Another arrangement of the slider 430 is provided here. Unlike the above embodiment, the slider 430 can also be a sliding sleeve. The sliding sleeve is fixed on the support 410 and is slidably connected to the outer wall of the outer cylinder 320. This arrangement can also limit the filter device 300 to vibrate only in the vertical direction.

[0043] Example 3

[0044] This embodiment is a third embodiment of a noise-reducing spiral vibration filter device. This embodiment is similar to embodiment two, except that, as shown in the example... Figure 1 As shown, it also includes a feeding device 100 and a discharging device 200. The feeding device 100 includes a first conveying member 110 connected to the inlet 321 and a first fixing member 120 connected to the first conveying member 110. The discharging device 200 includes a second conveying member 210 connected to the fine material outlet 322 and a second fixing member 220 connected to the second conveying member 210. In this embodiment, both the first fixing member 120 and the second fixing member 220 are flanges. The first fixing member 120 is connected to the inlet pipe by bolts, and the second fixing member 220 is connected to the outlet pipe by bolts. The support member 410 is installed on the top of the second fixing member 220. The first conveying member 110 and the second conveying member 210 can deform in the vertical direction. In this embodiment, the first conveying member 110 and the second conveying member 210 are cloth bags. In addition, the first conveying member 110 and the second conveying member 210 can also be telescopic pipes, hoses, etc.

[0045] The working principle of this embodiment is as follows:

[0046] The device can be directly fixed between the feed pipe and the discharge pipe via the first fixing member 120 and the second fixing member 220, eliminating the need for additional supports. This allows for simultaneous filtration and material conveying. The feed pipe and discharge pipe are connected by this device, forming a sealed system that reduces dust dispersion and environmental pollution, while also preventing material waste. When the vibrating device 400 drives the filter device 300 to vibrate vertically, the filter bag deforms, preventing vibration from being transmitted to the feed pipe and discharge pipe, further reducing noise.

[0047] The remaining working principles of this embodiment are the same as those of Embodiment 2.

[0048] Another configuration of the first conveyor 110 and the second conveyor 210 is provided herein. The first conveyor 110 includes a first outer tube and a first inner tube, and the second conveyor 210 includes a second outer tube and a second inner tube. The first outer tube is connected to the first fixing member 120, the first inner tube is connected to the feed inlet 321, the first inner tube is slidably connected to the inner wall of the first outer tube, the second outer tube is connected to the second fixing member 220, the second inner tube is connected to the fine material outlet 322, and the first inner tube is slidably connected to the inner wall of the first outer tube.

[0049] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A noise-reducing spiral vibration filtration device, comprising a filtration unit (300), the filtration unit (300) comprising an outer cylinder (320) and an inner cylinder (330) coaxially arranged, and a spiral screen (340) and a spiral baffle (350) arranged from top to bottom, wherein the outer edge of the spiral screen (340) and the outer edge of the spiral baffle (350) are both connected to the inner wall of the outer cylinder (320), and the inner edge of the spiral screen (340) and the inner edge of the spiral baffle (350) are both connected to the outer wall of the inner cylinder (330). The outer cylinder (320) is provided with a feed inlet (321), a fine material outlet (322), and an impurity outlet (323). The space between the outer cylinder (320) and the spiral screen (340) forms a raw material silo (360), and the space between the spiral screen (340) and the spiral partition (350) forms a fine material silo (370). The fine material silo (370) is connected to the fine material outlet (322), and the raw material silo (360) is connected to the feed inlet (321) and the impurity outlet (323). The characteristic feature is that... It also includes a vibration device (400), which includes a support (410), a drive (420) mounted on the support (410), and a sliding member (430) mounted on the support (410). The filter (300) is slidably connected to the sliding member (430) in the vertical direction. The drive (420) is used to drive the filter (300) to reciprocate in the vertical direction.

2. The noise-reducing spiral vibration filter device according to claim 1, characterized in that, The output end of the drive member (420) is connected to the bottom surface of the outer cylinder (320), and the sliding member (430) is slidably connected to the inner wall of the inner cylinder (330).

3. The noise-reducing spiral vibration filtration device according to claim 2, characterized in that, The slider (430) is provided with at least two sliders (431), and the sliders (431) are slidably connected to the inner wall of the inner cylinder (330).

4. The noise-reducing spiral vibration filter device according to claim 1, characterized in that, The output end of the drive member (420) is also provided with an elastic member (440), one end of which is fixedly connected to the bottom surface of the outer cylinder (320), and the elastic force of the elastic member (440) is along the vertical direction.

5. The noise-reducing spiral vibration filter device according to claim 1, characterized in that, It also includes a feeding device (100) and a discharging device (200). The feeding device (100) includes a first conveying member (110) connected to the feed inlet (321) and a first fixing member (120) connected to the first conveying member (110). The discharging device (200) includes a second conveying member (210) connected to the fine material discharge outlet (322) and a second fixing member (220) connected to the second conveying member (210). The first fixing member (120) is used to connect to the feed pipe, and the second fixing member (220) is used to connect to the discharge pipe. The vibration device (400) is installed on the top of the second fixing member (220).

6. The noise-reducing spiral vibration filter device according to claim 5, characterized in that, Both the first conveyor (110) and the second conveyor (210) can deform in the vertical direction.

7. A noise-reducing spiral vibration filtration device according to any one of claims 1-6, characterized in that, The spiral spacing of the spiral screen (340) is the same as the spiral spacing of the spiral partition (350), and the spiral helix angle of the spiral screen (340) is the same as the spiral helix angle of the spiral partition (350).

8. The noise-reducing spiral vibration filter according to claim 7, characterized in that, The spiral helix angle of the spiral screen (340) is between 5° and 20°.

9. A noise-reducing spiral vibration filter device according to any one of claims 1-6, characterized in that, Both the fine material outlet (322) and the impurity outlet (323) are located at the bottom of the outer cylinder (320). The connection between the fine material outlet (322) and the outer cylinder (320) and the connection between the impurity outlet (323) and the outer cylinder (320) are provided with chamfers.

10. A noise-reducing spiral vibration filter according to any one of claims 1-6, characterized in that, The filter device (300) is also provided with a feed baffle (310), one end of which is connected to the inner top surface of the outer cylinder (320), and the other end is connected to the outer top surface of the inner cylinder (330). The feed baffle (310) is located below the feed inlet (321).

Images