Environment-friendly fine screening building
The design of the environmentally friendly fine screening tower has solved the problems of large footprint, dust overflow and difficult maintenance in the ultrafine sand production line, and achieved efficient screening and environmentally friendly production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-03
AI Technical Summary
The screening devices on existing ultrafine sand production lines have problems such as large footprint, serious dust overflow, and difficult maintenance.
The design of the environmentally friendly fine screening tower includes equipment racks, lifting devices, buffer storage bins, and gyratory screening machines. Dust spillage is reduced through pipe connections and dust collectors. Ladders are provided for easy maintenance, and the screening machines are arranged in layers to improve space utilization.
It effectively reduces the equipment footprint, minimizes dust spillage, improves screening efficiency, and facilitates equipment maintenance, thus meeting the production needs of ultrafine sand.
Smart Images
Figure CN224072589U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material screening technology, specifically to an environmentally friendly fine screening tower. Background Technology
[0002] In various industries such as infrastructure, chemical industry, waterproofing materials and additives, a type of fine material with a diameter between 10 mesh (0.9 mm) and 140 mesh (0.1 mm) is used as a raw material. This fine material is called ultrafine sand in the industry. It is generally made by crushing and screening multiple times using bluestone (main component is CaCO3) or granite (main component is SiO2) as the main raw materials.
[0003] Screening devices are a key piece of equipment in this type of ultrafine sand production line. Currently, the screening devices used in ultrafine sand production lines have many disadvantages, such as large footprint, large amount of dust overflow, and difficulty in maintenance, which greatly hinder actual production and promotion. Utility Model Content
[0004] This invention provides an environmentally friendly fine screening tower to solve the technical problems in the prior art.
[0005] To solve the above problems, the environmentally friendly fine screening tower provided by this utility model adopts the following technical solution: including an equipment frame;
[0006] A lifting device used to lift materials;
[0007] The equipment frame is provided with a buffer storage box and a gyratory screening machine from top to bottom. At least two gyratory screening machines are provided. The lifting device is connected to the buffer storage box through the discharge chute. The buffer storage box is connected to the gyratory screening machine through the feed chute.
[0008] The equipment rack is also equipped with a dust collector for dust removal.
[0009] As a further improvement, the lifting device is a bucket elevator, with the feed inlet of the bucket elevator located at the lower end of the equipment frame and the discharge outlet of the bucket elevator higher than the buffer storage box, so that the material enters the discharge chute and is discharged into the buffer storage box by gravity.
[0010] As a further improvement, the buffer storage box includes a buffer box body, a buffer box inlet located at the top of the buffer box body, and a buffer box outlet located at the bottom of the buffer box body. The number of buffer box outlets is the same as the number of the gyratory screening machine.
[0011] As a further improvement, a gate valve for controlling material discharge is installed on the feed chute.
[0012] As a further improvement, a protective plate is installed around the equipment rack to reduce dust dispersion.
[0013] As a further improvement, the equipment rack is also equipped with a ladder for maintenance.
[0014] As a further improvement, the swing screening machine is provided with four units, which are arranged in two layers on the equipment frame.
[0015] As a further improvement, the swing screening machine is equipped with five sets of screens, with mesh sizes of 10-20 mesh, 20-40 mesh, 40-70 mesh, 70-140 mesh, and less than 140 mesh, respectively.
[0016] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:
[0017] 1. This utility model adopts an upper and lower arrangement structure, which has a relatively higher space utilization rate and reduces the equipment footprint; at the same time, four or more swing screens can be set up, which greatly improves the screening efficiency.
[0018] 2. All equipment is connected by pipes, which reduces dust leakage. At the same time, a dust collector is installed on the equipment frame. The dust collector's suction port can be set at the position where dust is prone to overflow from the gyratory screening machine, or a protective plate can be set on the equipment frame to form a relatively sealed space. The dust collector's suction port is connected to this sealed space, which basically eliminates the possibility of dust leakage and meets environmental protection requirements.
[0019] 3. The equipment rack is equipped with a ladder, and the equipment rack has reserved maintenance space to facilitate maintenance by staff.
[0020] 4. The screen of this utility model can screen four commonly used ultrafine sand products: 10-20 mesh, 20-40 mesh, 40-70 mesh, and 70-140 mesh, better meeting the needs of ultrafine sand production. Attached Figure Description
[0021] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:
[0022] Figure 1 This is a schematic diagram of the main structure of the environmentally friendly fine screening tower of this utility model;
[0023] Figure 2 This is a schematic diagram of the left-side structure of the environmentally friendly fine screening tower of this utility model;
[0024] Figure 3 This is a schematic diagram of the main structure of the swing-type screening machine of the environmentally friendly fine screening tower of this utility model;
[0025] Figure 4 This is a schematic diagram of the left-side structure of the swing-type screening machine of the environmentally friendly fine screening tower of this utility model;
[0026] Figure 5 This is a top view of the swing-type screening machine of the environmentally friendly fine screening tower of this utility model;
[0027] Figure 6 This is a schematic diagram of the short feed chute of the environmentally friendly fine screening tower of this utility model;
[0028] Figure 7 This is a schematic diagram of the long feed chute of the environmentally friendly fine screening tower of this utility model;
[0029] Figure 8 This is a schematic diagram of the main structure of the buffer storage box of the environmentally friendly fine screening tower of this utility model;
[0030] Figure 9 This is a schematic diagram of the left-side structure of the buffer storage box of the environmentally friendly fine screening tower of this utility model;
[0031] Figure 10 This is a bottom view of the buffer storage box of the environmentally friendly fine screening tower of this utility model.
[0032] Explanation of reference numerals in the attached figures:
[0033] 1. Bucket elevator; 2. Discharge chute; 3. Buffer storage bin; 301. Buffer bin inlet; 302. Buffer bin body; 303. Buffer bin outlet; 4. Feed chute; 5. Slide valve; 6. Swing screen; 601. Screening machine inlet; 602. Screening machine outlet; 7. Long feed chute; 8. Feed inlet; 9. Equipment frame; 10. Dust collector. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0035] Screening equipment is a key piece of equipment in this type of ultrafine sand production line. However, the screening process also generates a large amount of dust. The screening process mainly includes feeding, screening, and bagging of finished products, all of which are prone to dust generation. In addition, to meet the production requirements of the ultrafine sand production line, a gyratory screening machine is added, resulting in a large footprint for the gyratory screening machine.
[0036] To address the aforementioned issues, this invention employs an up-and-down distributed structure, reducing the floor space required for the screening device.
[0037] In addition, the swing screen has reserved space underneath, which makes it relatively convenient to transport finished products through pipelines or to bag materials before transportation.
[0038] The bucket elevator and the buffer storage box, as well as the buffer storage box and the swing screen, are all connected by pipes, which greatly reduces dust leakage. At the same time, a dust collector is installed to remove the small amount of overflowing dust, thus basically eliminating dust leakage.
[0039] After introducing the basic principles of this utility model, various non-limiting embodiments of this utility model are described in detail below. Any quantity of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning.
[0040] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.
[0041] Example 1 of the environmentally friendly fine screening tower provided by this utility model:
[0042] like Figures 1-10 As shown, the environmentally friendly fine screening tower includes an equipment frame 9, a lifting device, a buffer storage box 3, a swing screening machine 6, and a dust collector 10;
[0043] The equipment frame 9 can be a concrete structure or a steel structure. The equipment frame 9 typically has four layers. The buffer storage box 3 and dust collector 10 are installed on the fourth layer of the equipment frame 9. The swing-type screening machine 6 is installed on the second and third layers of the equipment frame 9. The first layer allows passage for vehicles or personnel. The equipment frame 9 is also equipped with a ladder for maintenance, facilitating equipment repair. A lifting device is used to lift materials. In this embodiment, the lifting device is a bucket elevator 1. The feed inlet 8 of the bucket elevator 1 is located at the lower end of the equipment frame 9 for easy material loading. The discharge outlet of the bucket elevator 1 is higher than the buffer storage box 3, allowing materials to enter the discharge chute 2 and be discharged into the buffer storage box 3 by gravity.
[0044] like Figures 8-10 As shown, the buffer storage box 3 can prevent materials from impacting the gyratory screen 6, thus preventing the gyratory screen 6 from wearing out too quickly. The replacement cost of the buffer storage box 3 is relatively lower, and an inner lining can be installed inside the buffer storage box 3 to reduce wear. The buffer storage box 3 also serves to temporarily store materials, forming a cushion that prevents impact on the liner and further reduces wear.
[0045] The bucket elevator 1 is connected to the buffer storage box 3 through the discharge chute 2 to reduce dust leakage.
[0046] The buffer storage box 3 includes a buffer box body 302, a buffer box inlet 8301 located at the top of the buffer box body 302, and a buffer box outlet 303 located at the bottom of the buffer box body 302. The number of buffer box outlets 303 is the same as the number of the gyratory screening machine 6.
[0047] like Figures 3-5 As shown, there are four swing screens 6, which are arranged in two layers on the equipment frame 9. The buffer storage box 3 is connected to the screening inlet 8601 of the swing screen 6 through the feed chute 4.
[0048] Since the oscillating screen 6 is set in two layers, the feed chute 4 includes a long feed chute 74 and a short feed chute 4. The feed chute 4 is equipped with a slide valve 5 for controlling the material discharge. The slide valve 5 can also control the material flow rate.
[0049] The five screening outlets 602 of the gyratory screening machine 6 correspond to particles of 10-20 mesh, 20-40 mesh, 40-70 mesh, 70-140 mesh, and smaller than 140 mesh, respectively. The screened particles are conveyed to storage tanks or other application equipment via conveying equipment.
[0050] The dust collector 10 is used to remove a small amount of overflowing dust. The dust collection port of the dust collector 10 can be set at a position where dust is prone to overflowing next to the swing screening machine 6, or a protective plate can be set on the equipment frame 9 to prevent dust from overflowing and to connect the dust collection port with the space enclosed by the protective plate.
[0051] During operation, the raw material is lifted to the discharge chute 2 by the bucket elevator 1. The material enters the buffer storage box 3 along the discharge chute 2. Then, by controlling the opening and closing of the slide valve 5, the material enters the swing screen 6 for screening. The screened particles are then transported to the storage tank or other application equipment by the conveying equipment.
[0052] While this specification has shown and described numerous embodiments of the present invention, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and intent of the present invention. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention. The appended claims are intended to define the scope of protection of the present invention and therefore cover the modular compositions, equivalents, or alternatives within the scope of these claims.
Claims
1. An environmentally friendly fine screening building, comprising: a device frame (9); a lifting device for lifting materials; characterized in that the device frame (9) is sequentially provided from top to bottom with a buffer storage box (3) and a swing screening machine (6), the swing screening machine (6) is provided with at least two, the lifting device is communicated with the buffer storage box (3) through a discharge chute (2), and the buffer storage box (3) is connected with the swing screening machine (6) through a feeding chute (4); a dust remover (10) for dust removal is further installed on the device frame (9).
2. The environmentally friendly fine classification tower according to claim 1, characterized in that: The lifting device is a bucket elevator (1), the feeding port (8) of the bucket elevator (1) is located at the lower end of the device frame (9), and the discharge port of the bucket elevator (1) is higher than the buffer storage box (3), so that the material is discharged into the buffer storage box (3) by gravity after entering the discharge chute (2).
3. The environmentally friendly fine classification tower of claim 1, wherein: The buffer storage box (3) comprises a buffer box body (302), a buffer box feeding port (8) (301) arranged at the top of the buffer box body (302), and a buffer box discharge port (303) arranged at the bottom of the buffer box body (302), the number of the buffer box discharge port (303) is the same as that of the swing screening machine (6).
4. The environmentally friendly fine classification tower of claim 1, wherein: The feeding chute (4) is provided with a plug valve (5) for controlling the discharge of materials.
5. The environmentally friendly fine classification tower of claim 1, wherein: A protective plate for reducing dust diffusion is installed around the device frame (9).
6. The environmentally friendly fine classification tower of claim 1, wherein: The device frame (9) is further provided with a crawling ladder for maintenance.
7. An environmentally friendly fine classification tower according to any one of claims 1 to 6, characterized in that: The swing screening machine (6) is provided with four, which are arranged in two layers on the device frame (9).
8. An environmentally friendly fine classification tower according to claim 7, characterized in that: The swing screening machine (6) is provided with five groups of screen meshes, and the mesh numbers of the five groups of screen meshes are 10-20 meshes, 20-40 meshes, 40-70 meshes, 70-140 meshes and less than 140 meshes, respectively.