A dry and wet combined multi-layer electric screen
By designing a multi-layer combined electric screen, the problem of existing vibrating screens being unable to separate dry and wet materials has been solved, achieving dry and wet screening, noise reduction, and dust prevention, thereby improving screening efficiency and environmental friendliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI GFORCE ENVIRONMENT TECHNOLOGY CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-26
AI Technical Summary
Existing vibrating screens cannot simultaneously separate dry and wet materials. The screen mesh is prone to getting wet, generates a lot of noise, has low efficiency for single-layer screening, and fine dust is easily emitted, affecting health and the environment.
A multi-layer combined electric screen for both dry and wet applications was designed. It adopts a multi-layer screen structure, is equipped with an air inlet pipe and a water inlet pipe, and is combined with a dust cover and a noise reduction system to achieve dry and wet screening. The screening is carried out by introducing compressed air or water through an air compressor and a water pump respectively, which prevents dust from flying out and reduces noise.
It enables both dry and wet screening, reduces noise, improves screening efficiency, prevents dust from flying out, and protects the health of workers and the environment.
Smart Images
Figure CN224405691U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vibrating screen technology, and in particular to a multi-layer combined electric screen that can be used for both dry and wet applications. Background Technology
[0002] Vibrating screens are high-precision fine powder screening machines, widely used in various industries due to their low noise and high efficiency. They can be used to screen or sieve mineral materials, etc. Existing screening machines generally consist of a screen frame with a screen mesh installed on it. The following problems have been found in the use of existing screening systems:
[0003] 1. Currently, screening systems on the market cannot simultaneously perform dry and wet screening. This is because wet screening involves washing the screened sand and dust with water while the vibrating motor is running. The screen surface is wet after wet screening, and the screen needs to be dried manually or naturally before use.
[0004] 2. The existing vibrating screen does not guide the internal airflow during the dry screening process, which results in sand and dust still overflowing during the screening process.
[0005] 3. Most electromagnetic vibrating screens on the market are single-layered and can only perform screening with a single precision. If materials are screened in multiple stages, several devices or multiple filter replacements are required, which is difficult to meet the screening needs of laboratory dust and particulate matter and greatly reduces screening efficiency.
[0006] 4. The vibrating screen is quite noisy. If workers are in this environment for a long time, their hearing will be damaged. Workers will need to wear earplugs for a long time to work here.
[0007] 5. Current vibrating screens, when screening fine dust, still have the possibility of particles flying out of the screen due to the lack of proper sealing between the screen meshes, which can affect the laboratory working environment.
[0008] The aforementioned screening methods have shortcomings that do not comply with national environmental protection policies, pose challenges to human physiological health, and increase the risk of occupational diseases among workers. Utility Model Content
[0009] Therefore, the technical problem to be solved by this utility model is to overcome the fact that the existing vibrating screen can only be used for a single working requirement and cannot meet the application scenarios of both dry and wet conditions.
[0010] To solve the above-mentioned technical problems, this utility model provides a multi-layer combined electric screen for both dry and wet use, comprising: a support base; a funnel with several shock-absorbing springs between it and the support base, and a vibration pump installed on the funnel; a vibrating screen with its lower end set on the funnel and connected to the funnel, the vibration pump driving the vibrating screen to vibrate; a cover plate set on the upper end of the vibrating screen, with several tension springs between the cover plate and the funnel, the tension springs constraining the vibrating screen and the funnel to be integrated; and an inlet pipe, one end of which passes through the cover plate and extends into the vibrating screen, and the other end of the inlet pipe is connected to a water pump or an air compressor. When the vibrating screen is used to screen dry sand and dust, the inlet pipe is connected to the air compressor, the air compressor is used to introduce compressed air into the vibrating screen. When the vibrating screen is used to screen wet sand and dust, the inlet pipe is connected to the water pump, the water pump is used to introduce water into the vibrating screen. The air compressor is used through the inlet pipe to air-dry the vibrating screen after wet screening. This utility model is a multi-layer combined electric screen that can be used for both dry and wet applications. An air inlet pipe or a water inlet pipe is added to the top of the screen, so that the sand screening equipment can perform both dry and wet screening. The inlet pipe can be used to introduce both air and water, and the medium introduced can improve the effect of sand and dust passing through the screen.
[0011] In one embodiment of the present invention, the vibrating screen includes multiple layers of screen mesh stacked together in a vertical direction.
[0012] In one embodiment of this utility model, the lower end of the funnel is provided with a discharge port, and an external discharge pipe is connected to the discharge port.
[0013] In one embodiment of this utility model, a deep barrel is provided below the funnel, and the lower end of the external discharge pipe extends into the deep barrel.
[0014] In one embodiment of this utility model, the outer cover of the support base and the vibrating screen as a whole is provided with a dust cover. The dust cover is used to prevent dust from flying out during the screening process and to isolate the vibration noise of the vibrating screen. During screening, the outer cover plays a certain role in dust prevention and noise reduction.
[0015] In one embodiment of this utility model, the dust cover is provided with a cabinet door, the cabinet door is hinged to the dust cover by a hinge, and the cabinet door is provided with a door handle.
[0016] In one embodiment of this utility model, a shock-absorbing pad is provided between the cover plate and the upper end of the vibrating screen.
[0017] In one embodiment of this utility model, the cover plate is provided with a plurality of fixing members, and the plurality of fixing members and a plurality of tension springs are arranged in a corresponding manner. A spring hook is connected to the fixing member, and one end of the tension spring is connected to the spring hook.
[0018] In one embodiment of this utility model, the lower end of the support base is provided with an adjusting foot.
[0019] In one embodiment of this utility model, the aperture of the screen mesh inside the vibrating screen gradually decreases from top to bottom.
[0020] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects:
[0021] The multi-layer combined electric sieve described in this utility model, which can be used for both dry and wet screening, introduces compressed air from a compression tank into the inlet pipe during dry screening of sand and dust. The compressed air enters the multi-layer screen through a nozzle, and finally, after passing through the multi-layer screen, it enters the funnel. The airflow is then discharged from the bottom outlet pipe into a deep barrel, where the deep barrel buffers the discharged airflow to prevent dust from spilling out. During wet screening of sand and dust, water is introduced into the inlet pipe. The water enters the multi-layer screen through a nozzle, passes through the multi-layer screen, and enters the funnel. The water then discharges from the funnel into the deep barrel. The inlet pipe can be connected to an external water pump or a tap water pipe. Attached Figure Description
[0022] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:
[0023] Figure 1 This is a schematic diagram of the structure of the multi-layer combined electric screen for both dry and wet use in a preferred embodiment of the present invention when used for wet screening;
[0024] Figure 2 This is a schematic diagram of the structure of the multi-layer combined electric screen for both dry and wet use in a preferred embodiment of the present invention when used for dry sieving;
[0025] Figure 3 This is a schematic diagram of the external structure of a multi-layer combined electric screen for both dry and wet applications in a preferred embodiment of this utility model.
[0026] Instruction manual drawing reference numerals: support base 1, adjusting foot 11, funnel 2, vibration pump 20, external drain pipe 21, deep barrel 22, shock-absorbing spring 3, vibrating screen 4, cover plate 5, shock-absorbing pad 51, fastener 52, spring hook 53, tension spring 6, inlet pipe 7, water pump 8, air compressor 9, dust cover 10, cabinet door 101, door handle 102. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.
[0028] Reference Figure 1As shown, the multi-layer combined electric sieve of this utility model, suitable for both wet and dry use, includes: a support base 1; a funnel 2, with several damping springs 3 between the funnel 2 and the support base 1, and a vibration pump 20 mounted on the funnel 2; a vibrating screen 4, the lower end of which is disposed on the funnel 2 and connected to the funnel 2, the vibration pump 20 being used to drive the vibrating screen 4 to vibrate; and a cover plate 5, disposed on the upper end of the vibrating screen 4, with several tension springs 6 between the cover plate 5 and the funnel 2, the tension springs 6 being used to limit the vibration of the vibrating screen 4. The funnel 2 is an integral part; the inlet pipe 7 has one end passing through the cover plate 5 and extending into the vibrating screen 4, and the other end of the inlet pipe 7 is connected to the water pump 8 or the air compressor 9. When the vibrating screen 4 is used to screen dry sand and dust, the inlet pipe 7 is connected to the air compressor 9, and the air compressor 9 is used to introduce compressed air into the vibrating screen 4. When the vibrating screen 4 is used to screen wet sand and dust, the inlet pipe 7 is connected to the water pump 8, and the water pump 8 is used to introduce water into the vibrating screen 4. The air compressor 9 is used to air dry the vibrating screen 4 after wet screening through the inlet pipe 7.
[0029] The specific connection between the inlet pipe 7 and the cover plate 5 is achieved by installing nozzles on the cover plate 5, which, under appropriate conditions, introduce gas or liquid into the stacked screens, realizing the integrated function of dry and wet sieving. When gas is introduced into the nozzles, the gas pressurizes the inside of the screens, allowing sand and dust to be discharged more smoothly downwards from the screens; when liquid is introduced into the nozzles, the downward flow of water also accelerates the downward flow of sand and dust.
[0030] In the above structure, the vibrating screen 4 includes multiple layers of screens stacked vertically. The aperture of the screens in the vibrating screen 4 gradually decreases from top to bottom. Multiple layers of screens are placed as needed, and the particle size gradually decreases from top to bottom. This experimental device is lightweight, flexible, and easy to operate, and can work in different environments. The dustproof and noise reduction system plays a very important role in protecting human health.
[0031] In the above structure, the lower end of the funnel 2 is provided with a discharge port, and an external discharge pipe 21 is connected to the discharge port. A deep barrel 22 is provided below the funnel 2, and the lower end of the external discharge pipe 21 extends into the deep barrel 22.
[0032] In the above structure, the support base 1 and the vibrating screen 4 are covered by a dust cover 10. The dust cover 10 is used to prevent dust from flying out during screening by the vibrating screen 4, and also to isolate the vibration noise of the vibrating screen 4. The dust cover 10 is equipped with a cabinet door 101, which is hinged to the dust cover 10 via a hinge. The cabinet door 101 is equipped with a door handle 102. When the vibrating screen is exposed to the working environment, its noise can reach 100 decibels; working in this environment can harm people's physical and mental health. Therefore, a noise-reducing dust cover is added. After using the noise-reducing dust cover, the noise is significantly reduced to 60 decibels. Experiments show that the fine dust emitted during screening is contained within the dust cover 10, making collection more convenient and environmentally friendly.
[0033] In the above structure, a shock-absorbing pad 51 is provided between the upper end of the cover plate 5 and the vibrating screen 4.
[0034] In the above structure, the cover plate 5 is provided with several fixing members 52, and the fixing members 52 and several tension springs 6 are arranged in a one-to-one correspondence. A spring hook 53 is connected to each fixing member 52, and one end of the tension spring 6 is connected to the spring hook 53. Specifically, the fixing member 52 is provided with a crossbar corresponding to the spring hook 53, and the other end of the tension spring 6 away from the spring hook 53 is connected to the funnel 2. After the multi-layer vibrating screens 4 are stacked sequentially on top of the funnel 2, the cover plate 5 is placed on the topmost vibrating screen 4, and then the spring hooks 53 on the tension springs 6 are used to hook the fixing members 52, fixing the cover plate 5 and the multi-layer vibrating screens 4 to the funnel 2, ensuring the airtightness between each layer of vibrating screens 4.
[0035] In the above structure, the lower end of the support base 1 is provided with an adjustable foot 11. The adjustable foot 11 can be used to support the support base 1, and the height of the support base 1 can also be adjusted by adjusting the foot 11.
[0036] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A dry and wet combined multi-layer electric screen, characterized in that, include: Support base; A funnel with several shock-absorbing springs between it and the support base, and a vibration pump is installed on the funnel. A vibrating screen, the lower end of which is set on a funnel and the vibrating screen is connected to the funnel, and the vibrating pump is used to drive the vibrating screen to vibrate; A cover plate is provided on the upper end of the vibrating screen, and several tension springs are provided between the cover plate and the funnel. The tension springs are used to limit the vibrating screen and the funnel to be integrated. An inlet pipe extends through a cover plate into the vibrating screen at one end and is connected to a water pump or an air compressor at the other end. When the vibrating screen is used to screen dry sand and dust, the inlet pipe is connected to an air compressor, which is used to supply compressed air into the vibrating screen. When the vibrating screen is used to screen wet sand and dust, the inlet pipe is connected to a water pump, which is used to supply water into the vibrating screen. The air compressor is used to air-dry the vibrating screen after the wet screening through the inlet pipe.
2. The dry and wet multi-layer combined electric screen according to claim 1, characterized in that: The vibrating screen comprises multiple layers of screen mesh stacked together in a vertical direction.
3. The dry and wet multi-layer combined electric screen according to claim 1, characterized in that: The lower end of the funnel is provided with a discharge port, and an external discharge pipe is connected to the discharge port.
4. The multi-layer combined electric screen for both dry and wet use according to claim 3, characterized in that: A deep barrel is provided below the funnel, and the lower end of the external discharge pipe extends into the deep barrel.
5. The multi-layer combined electric screen for both dry and wet use according to claim 1, characterized in that: The support base and the overall vibrating screen are covered with a dust cover. The dust cover is used to prevent dust from flying out during the screening process and to isolate the vibration noise of the vibrating screen.
6. The multi-layer combined electric screen for both dry and wet use according to claim 5, characterized in that: The dust cover is equipped with a cabinet door, which is hinged to the dust cover via a hinge, and the cabinet door is equipped with a door handle.
7. The multi-layer combined electric screen for both dry and wet use according to claim 1, characterized in that: A shock-absorbing pad is provided between the cover plate and the upper end of the vibrating screen.
8. The multi-layer combined electric screen for both dry and wet use according to claim 7, characterized in that: The cover plate is provided with several fixing parts, and the fixing parts and several tension springs are arranged in a corresponding manner. A spring hook is connected to the fixing part, and one end of the tension spring is connected to the spring hook.
9. The multi-layer combined electric screen for both dry and wet use according to claim 1, characterized in that: The lower end of the support base is provided with an adjusting foot.
10. The multi-layer combined electric screen for both dry and wet use according to claim 2, characterized in that: The aperture of the screen mesh inside the vibrating screen gradually decreases from top to bottom.