Environment-friendly vibrating screen

Abstract

The utility model discloses an environment-friendly vibrating screen which comprises a supporting frame, a sealing cabinet is arranged on the upper portion of the supporting frame, a vibrating screen unit of a multi-layer structure is arranged in the sealing cabinet, and a plurality of pipeline outlets are formed in the side wall of the sealing cabinet. A flexible discharge pipe is arranged on each side discharge port of the vibrating screen unit, penetrates through the pipeline outlet and then extends to the outside of the sealing cabinet; a dust outlet is formed in each vibrating layer of the vibrating screen unit, and the multiple dust outlets extend into the dust collector through a dust suction main pipe; a filtering collector is arranged in the sealing body of the dust collector; the sealing body is provided with an exhaust pipe, and the exhaust pipe is connected with a negative pressure device to exhaust gas in the filtering collector; an adsorption device can be further arranged between the exhaust pipe and the negative pressure device to conduct environment-friendly treatment on gas entering the negative pressure device.

Description

Technical Field

[0001] The utility model belongs to the technical field of material screen machinery, and in particular relates to an environmentally friendly vibrating screen. Background Art

[0002] In the production of medicine, fine chemicals, rare earth fluorination, biotechnology, new materials and food industries, a finished product particle screening equipment - vibrating screen is widely used. The technical problems currently encountered are:

[0003] 1. Since the packaging of the received particles needs to be constantly updated during the production process, and the vibrating screen discharge pipe is temporarily docked with the packaging material, powdery materials continue to escape from the gap of the docking interface, which not only pollutes the environment, but also causes great waste and makes the work site dirty and messy.

[0004] 2. Due to different customer requirements for product specifications (particle size), the internal screen of the vibrating screen needs to be replaced frequently according to user needs. This process is also an important link in the dispersion of materials, which not only pollutes the environment but also causes serious waste.

[0005] Therefore, summarizing the above technical problems, the current production environment of the vibrating screen screening process is extremely bad, and the pollution to the workshop and related regional environment is also very large. So far, no real good solution has been found for this problem.

[0006] In recent years, relevant enterprises in this field have adopted measures to close the process, but since the dust leakage and dispersion problem of the vibrating screen has not been fundamentally solved, the materials scattered on the ground cannot be recovered, and the improvement method is only a temporary solution. Especially for rare earth fluorination, biopharmaceuticals, high-end new materials, fine chemicals and other industries, the raw materials themselves are very expensive, so the clean recycling of their materials is an urgent problem to be solved. Utility Model Content

[0007] In order to overcome the shortcomings of the existing technology and address the problems in the above links, this patent application discloses an environmentally friendly vibrating screen, which is specifically designed for different industries and products. It not only completely improves the operating environment and eliminates pollution, but also greatly reduces material losses, truly realizing the environmental protection and cleanliness of the production workshop.

[0008] To achieve the above technical objectives, the utility model adopts the following scheme: an environmentally friendly vibrating screen, comprising a supporting frame, a sealing cabinet is arranged on the upper part of the supporting frame, a vibrating screen unit is arranged inside the sealing cabinet, and a plurality of pipe outlets are arranged on the side wall of the sealing cabinet; the vibrating screen unit is arranged in multiple layers, and a flexible discharge pipe is arranged on each side discharge port, and the flexible discharge pipe extends to the outside of the sealing cabinet after passing through the pipe outlet; a dust outlet is arranged on each vibration layer of the vibrating screen unit, and a plurality of dust outlets extend to the dust collector through the dust suction pipe; the dust collector comprises a sealing body, and a filter collector is arranged inside the sealing body; the dust suction pipe extends to the inside of the filter collector; the sealing body is provided with an exhaust pipe, and the exhaust pipe is connected to the negative pressure device to discharge the gas inside the filter collector.

[0009] At least one side wall of the sealed cabinet is made of transparent material, and external operators can directly observe the internal conditions through the transparent area.

[0010] An adsorption device is arranged between the exhaust pipe and the negative pressure device, and an adsorption carrier is arranged inside the adsorption device. When the adsorption carrier is arranged, for the adsorption of VOC gas, it is recommended to use coconut shell activated carbon or peanut shell activated carbon with an iodine value greater than 700 and a specific surface area greater than 1100 m2 / g. This adsorption effect is more thorough; for materials containing very small VOC gases, coal coke can also be used as the adsorbent.

[0011] The negative pressure device uses a negative pressure fan. To avoid noise transmission, a flexible pad is provided at the bottom of the negative pressure fan. A fan shock-absorbing pipe is softly connected to the pipeline used to connect the negative pressure fan. The above structural design is to avoid resonance and reduce vibration transmission and noise transmission.

[0012] The dust outlet is arranged at the top of the side discharge port and is connected with the dust suction main pipe through a hose.

[0013] When the dust collecting main pipe is connected to the sealing body and the filter collector, it enters tangentially along the outer diameter of the sealing body and the filter collector. The main purpose of this design is to utilize the difference in centrifugal force generated by the density difference between powder and air to improve the separation efficiency.

[0014] Inside the sealing body, a vibration component is provided on the filter collector, and the vibration component is used to realize regular surface dust removal of the filter collector. For the vibration of the filter collector, this patent application designs two sets of structures for customers to choose. For the production site with a compressed air source, a pulse component can be used to realize the back-blowing function of the filter collector. For those without a compressed air source, manual vibration can be used to vibrate the bag. Combined with actual production experience, the amount of dust material and the surface area of ​​the filter bag, it is generally sufficient to perform manual vibration once every 6-8 hours.

[0015] When the back-blowing function is used, a back-blowing pipe is designed to extend into the filter collector, and the air supply end of the back-blowing pipe is connected to a pulse assembly. The pulse assembly includes an air bag and a pulse valve, which can back-blow the filter collector regularly to blow off impurities inside the filter collector.

[0016] The end of the flexible discharge pipe is connected with a discharge dust cover.

[0017] The bottom of the sealed cabinet is provided with moving wheels, which can drive the entire environmentally friendly vibrating screen to move. A fixed bracket is also provided at the bottom of the sealed cabinet in conjunction with the moving wheels, and a hole is provided on the fixed bracket for connecting and fixing with the ground.

[0018] When the dust collector is connected to the adsorption device, a shock-absorbing pipe is softly connected to the connecting pipeline.

[0019] The beneficial effects of the utility model are as follows: the utility model discloses an environmentally friendly vibrating screen, which includes a support frame, a sealed cabinet is arranged on the upper part of the support frame, a vibrating screen unit with a multi-layer structure is arranged inside the sealed cabinet, and a plurality of pipeline outlets are arranged on the side wall of the sealed cabinet; a flexible discharge pipe is arranged on each side discharge port of the vibrating screen unit, which passes through the pipeline outlet and extends to the outside of the sealed cabinet; a dust outlet is arranged on each vibration layer of the vibrating screen unit, and a plurality of dust outlets extend to the dust collector through the dust suction pipe; a filter collector is arranged inside the sealed body of the dust collector; an exhaust pipe is arranged on the sealed body, and the exhaust pipe is connected to the negative pressure device to discharge the gas inside the filter collector; an adsorption device can also be arranged between the exhaust pipe and the negative pressure device to treat the gas entering the negative pressure device in an environmentally friendly manner. The utility model has a reasonable structural design and is easy to use. It can collect impurities and toxic and harmful gases generated in the material screening process and treat them harmlessly. It overcomes the disadvantages of the prior art and is an ideal environmentally friendly vibrating screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the side view structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the organic waste gas treatment structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the top view structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the utility model;

[0025] Figure 6 It is a schematic diagram of the structure of the organic waste gas treatment device.

[0026] In the attached drawings, 1, support frame, 11, moving wheel, 12, fixed bracket, 2, sealed cabinet, 21, cabinet door, 22, acrylic wall panel, 23, pipe outlet, 24, dust suction pipe, 25, branch port, 3, vibrating screen unit, 30, base, 31, feed hose, 32, top cover, 33, side discharge port, 331, material outlet, 332, dust outlet, 34, vibration source, 35, shock-absorbing spring, 36, screen frame, 37, inspection port, 38, induced air hose, 4, flexible discharge pipe, 41 , discharge dust cover, 5, dust collector, 51, tank body, 52, filter collector, 53, manual vibration pull rod, 54, closed feeder, 55, quick-release cover, 56, tangential inlet, 57, backblowing pipe, 58, air bag, 59, pulse valve, 6, adsorption device, 61, sieve baffle, 62, adsorption carrier, 63, replacement port, 64, adsorption exhaust pipe, 65, adsorption inlet pipe, 66, shock absorber pipe, 7, negative pressure fan, 71, shock absorber block, 72, fan shock absorber pipe, 73, exhaust pipe. DETAILED DESCRIPTION

[0027] The present invention is described in detail below through specific embodiments, but it should be noted that the following specific implementations do not technically limit the present technical solution, and those skilled in the art can further extend the technology under the guidance of the following technical solution. The protection scope of this patent application shall be subject only to the claims.

[0028] Embodiment 1:

[0029] An environmentally friendly vibrating screen includes a support frame 1, and a moving wheel 11 is arranged at the bottom of the support frame 1. The moving wheel 11 can drive the entire environmentally friendly vibrating screen to move. A fixed bracket 12 is also arranged at the bottom of the sealed cabinet 1 to match the moving wheel 11. The fixed bracket 12 is provided with a hole for connecting and fixing with the ground. This structure can realize the adjustment of position and direction at any time in the workshop according to the on-site situation, which is convenient for production. Considering that displacement may occur during the operation of the utility model, once the position is fixed, the fixed bracket 12 can be used to support the entire set of equipment to lift the moving wheel 11 off the ground. The moving wheel here is preferably a universal wheel.

[0030] A sealed cabinet 2 is arranged on the upper part of the support frame 1, and a vibrating screen unit 3 is arranged inside the sealed cabinet 2. The sealed cabinet 2 is arranged in a square structure. Considering environmental protection and material recycling, the four sides are closed by acrylic wall panels 22 made of food-grade transparent visible material. A number of pipe outlets 23 are arranged on the side wall of the sealed cabinet 2, and the pipe outlets 23 are arranged in a sealed structure. The products screened out of each layer are transported to the outside of the sealed cabinet 2 through the flexible discharge pipe 4 through the pipe outlet 23 and enter the packaging (paper roll or ton packaging). The material of the flexible discharge pipe 4 for conveying materials can be selected in combination with the physical and chemical properties of the product, such as corrosion resistance, transparent visibility, and sanitary level. The end of the flexible discharge pipe 4 is connected with a discharge dust cover 41, which can prevent dust from expanding outward during discharge.

[0031] The vibrating screen unit 3 is arranged in multiple layers. Figure 5 As shown, it includes a base 30, on which a vibration source 34 and a shock-absorbing spring 35 are arranged, and five layers of screen frames 36 are arranged on the upper part of the vibration source 34 and the shock-absorbing spring 35, and a fixed collar is used between adjacent screen frames 36 to achieve annular covering. A side discharge port 33 is arranged on each layer of the screen frame 36, and a flexible discharge pipe 4 is arranged on each side discharge port 33 through a material outlet 331; each vibration layer of the vibration screen unit 3, that is, each corresponding screen frame 36, is provided with a dust outlet 332.

[0032] The dust collector 5 includes a sealed body, which in this embodiment is a tank body 51. A quick-release upper cover 55 is provided on the top of the tank body 51. The quick-release upper cover 55 can be used to quickly remove the filter collector 52 inside the tank body 51 for cleaning or replacement. The filter collector 52 is provided inside the tank body 51; the dust suction main pipe 24 extends to the inside of the filter collector 52, and a closed feeder 54 is provided at the bottom of the tank body 51. An exhaust pipe 73 is provided on the tank body 51, and the exhaust pipe 73 is connected to the negative pressure device to discharge the gas inside the filter collector 52.

[0033] The negative pressure device uses a negative pressure fan 7. To avoid noise transmission, a rubber shock-absorbing block 72 is provided at the bottom of the negative pressure fan 7 as a flexible cushion. At the same time, a fan shock-absorbing pipe 72 is softly connected to an exhaust pipe 73 for connecting the negative pressure fan 7. The above structure is designed to avoid resonance and reduce vibration transmission and noise transmission.

[0034] By adopting the negative pressure fan 7 , when the device is in operation, all spaces in the vibrating screen unit 3 are always in a slightly negative pressure state, and the control of the negative pressure is completed by the air volume regulating valve arranged on the negative pressure fan 7 .

[0035] In this embodiment, except for the top cover 32, a dust outlet 332 is provided on the upper part of each side discharge port 33, and several dust outlets 33 are connected to the branch port 25 at the bottom of the dust suction pipe 24 through the air induced hose 38, and the dust suction pipe 24 is connected to the dust collector 5. The above pipeline connection has two main functions:

[0036] 1. Try to absorb the powder adhering to the particles due to static electricity and other reasons during screening to improve the product quality.

[0037] Second, the temporary sealing cover connecting the discharge pipe and the packaging absorbs the escaping powder to prevent it from spreading and polluting the environment, while also reducing losses and costs.

[0038] Furthermore, when the dust collecting main pipe 24 is connected to the filter collector 52 in the tank body 51, it enters tangentially along the outer diameter of the sealing body and the filter collector 52. The main purpose of this design is to utilize the difference in centrifugal force generated by the density difference between powder and air, thereby improving the separation efficiency.

[0039] Furthermore, inside the sealing body 52, a vibration component is provided on the filter collector, and the vibration component is used to achieve regular surface dust removal of the filter collector 52.

[0040] For the vibration of the filter collector 52, this patent application designs two sets of structures for customers to choose from. For production sites with a compressed air source, a pulse component can be used to realize the back-blowing function of the filter collector. When the back-blowing function is used, a back-blowing pipe 57 is designed to extend into the inside of the filter collector 52, and the air supply end of the back-blowing pipe 57 is connected to the pulse component. The pulse component includes an air bag 58 and a pulse valve 59, which can back-blow the filter collector 52 at a fixed time to blow off the impurities inside the filter collector 52.

[0041] If there is no compressed air source, the filter collector 52 can be vibrated manually. Figure 2 , 3 As shown, a manual vibration pull rod 53 is provided on the tank body 51 and penetrates the tank body 51. The inner end of the manual vibration pull rod 53 is connected to the filter collector 52. By pulling the manual vibration pull rod 53, the filter collector 52 is vibrated, thereby removing impurities attached to the filter collector 52. Combined with actual production experience, the amount of dust material and the surface area of ​​the filter collector 52, it is generally sufficient to perform manual vibration once every 6-8 hours. The filter collector 52 described above can be a single large filter bag or a filter combination composed of multiple small filter bags.

[0042] Embodiment 2:

[0043] On the basis of Example 1, the utility model will be provided with an adsorption device 6 between the exhaust pipe 73 and the negative pressure fan 7, the adsorption device 6 includes a circular adsorption tank, two sieve baffles 61 are arranged inside the adsorption tank, and an adsorption carrier 62 is filled between the two sieve baffles 61. When the adsorption carrier 62 is set, for the adsorption of VOC gas, it is recommended to use coconut shell activated carbon or peanut shell activated carbon with an iodine value greater than 700 and a specific surface area greater than 1100 m2 / g. The adsorption effect of the adsorption carrier 62 is more thorough.

[0044] For materials with very low VOC content, coal coke can also be directly used as the adsorption carrier 62. On the outer wall of the adsorption device 6, a replacement port 63 is provided corresponding to the placement area of ​​the adsorption carrier 62, and the replacement of the adsorption carrier 62 inside can be realized through the replacement port 63.

[0045] When the dust collector 5 is connected to the adsorption device 6, a shock-absorbing pipe 66 and a fan shock-absorbing pipe 72 are softly connected to the adsorption exhaust pipe 64 and the adsorption inlet pipe 65, respectively, so as to achieve maximum noise reduction when the whole machine is running.

[0046] In summary, the utility model has reasonable structural design and is easy to use. It can collect impurities and toxic and harmful gases generated in the material screening process and treat them harmlessly. It overcomes the disadvantages of the prior art and is an ideal environmentally friendly vibrating screen.

Claims

1. An environmentally friendly vibrating screen, characterized in that: It comprises a support frame, a sealed cabinet is arranged on the upper part of the support frame, a vibrating screen unit is arranged inside the sealed cabinet, and a plurality of pipe outlets are arranged on the side wall of the sealed cabinet; the vibrating screen unit is arranged in multiple layers, and a flexible discharge pipe is arranged on each side discharge port, and the flexible discharge pipe passes through the pipe outlet and extends to the outside of the sealed cabinet; a dust outlet is arranged on each vibration layer of the vibrating screen unit, and a plurality of dust outlets are connected to the dust suction pipe; the dust collector comprises a sealing body, and a filter collector is arranged inside the sealing body; the dust suction pipe extends to the inside of the filter collector; the sealing body is provided with an exhaust pipe, and the exhaust pipe is connected to the negative pressure device.

2. The environmentally friendly vibrating screen according to claim 1, characterized in that: At least one side wall of the sealed cabinet is made of transparent acrylic material.

3. The environmentally friendly vibrating screen according to claim 1, characterized in that: An adsorption device is arranged between the exhaust pipe and the negative pressure device, and an adsorption carrier is arranged inside the adsorption device.

4. The environmentally friendly vibrating screen according to claim 1, characterized in that: The negative pressure device adopts a negative pressure fan, and a flexible cushion block is arranged at the bottom of the negative pressure fan; a fan shock-absorbing pipe is softly connected to the pipeline used to connect the negative pressure fan.

5. The environmentally friendly vibrating screen according to claim 1, characterized in that: The dust outlet is arranged at the top of the side discharge port and is connected with the dust suction main pipe through a hose.

6. The environmentally friendly vibrating screen according to claim 1, characterized in that: When the dust collecting main pipe is connected to the filter collector, it enters tangentially along the sealing body and the outer diameter of the filter collector.

7. The environmentally friendly vibrating screen according to claim 1, characterized in that: Inside the sealing body, a vibration component is arranged on the filter collector.

8. The environmentally friendly vibrating screen according to claim 7, characterized in that: The vibration component is a manual vibration rod fixed on the sealing body and penetrating the sealing body, and the inner end of the manual vibration rod is connected to the filter collector.

9. The environmentally friendly vibrating screen according to claim 7, characterized in that: The vibration component includes the following components: a backflush pipe fixed on the sealing body and extending to the inside of the filter collector, the air supply end of the backflush pipe is connected to the pulse component; the pulse component includes an air bag and a pulse valve.

10. The environmentally friendly vibrating screen according to claim 1, characterized in that: The bottom of the sealed cabinet is provided with moving wheels; a fixed bracket is also provided at the bottom of the sealed cabinet to match the moving wheels.

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