Multi-stage screening device

Abstract

The utility model provides a multi-stage screening device, which relates to the technical field of multi-stage screening, and comprises a screening assembly, a vibration assembly is arranged on the side surface of the screening assembly, a disinfecting and cleaning assembly is arranged in the screening assembly, and the screening assembly comprises a screening box. A first-stage screening plate, a second-stage screening plate and a third-stage screening plate are installed in the screening box, and the disinfecting and cleaning assembly comprises a plurality of disinfecting pipes. A disinfectant in the storage box is pumped through the pump, conveyed into the disinfection pipe through the communicating pipe and finally sprayed out through the high-pressure nozzle, disinfection treatment on the interior of the screening box is facilitated, the situation that the interior of the screening box is corroded by residual chemical reagent auxiliaries is avoided, and the service life of the screening box is prolonged; and then an electric telescopic rod stretches out and draws back, so that the scraping plate can scrape off residual chemical reagent auxiliaries on the screening plate, cleanliness of the screening plate is guaranteed, and the screening efficiency of the screening plate is improved.

Description

Technical Field

[0001] This utility model relates to the field of multi-stage screening technology, and in particular to a multi-stage screening device. Background Technology

[0002] Chemical reagent auxiliaries are a class of substances that play an important auxiliary role in chemical experiments, industrial production, and scientific research activities. Existing chemical reagent auxiliaries require multi-stage sieving before use.

[0003] In the prior art, such as the patent publication number CN219210080U "A Multi-stage Sieving Device for Chemical Reagents and Additives", a sieving mechanism, a crushing mechanism disposed on one side of the sieving mechanism, and a dust collection mechanism disposed on the top of the crushing mechanism are included. The sieving mechanism includes: a sieving box, a first reduction motor disposed on one side of the sieving box, an inclined plate disposed at the bottom of the sieving box, a rotating rod disposed at the output end of the first reduction motor, sieving rods disposed around the rotating rod, a first sieving plate disposed inside the sieving box, and a discharge port disposed inside the first sieving plate. The sieving box is provided with a second sieving plate and a third sieving plate. In use, the first reduction motor drives the sieving rods on the rotating rod to rotate and sieve the raw materials. The sieved raw materials fall into the first sieving plate, the second sieving plate, and the third sieving plate for step-by-step sieving, thereby improving the sieving quality.

[0004] Existing multi-stage screening devices have problems with chemical reagents and auxiliaries. These reagents and auxiliaries are sticky and tend to adhere to the screening plates, causing blockages and reducing screening efficiency. In addition, residual chemical reagents and auxiliaries can corrode the screening box, reducing its service life. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the prior art where chemical reagents and additives are sticky, easily adhere to the screening plate and cause blockage, thereby reducing screening efficiency, and the residual chemical reagents and additives can easily corrode the screening box, reducing the service life of the screening box. Therefore, a multi-stage screening device is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a multi-stage screening device, comprising a screening assembly, a vibration assembly disposed on the side of the screening assembly, a disinfection and cleaning assembly disposed inside the screening assembly, the screening assembly comprising a screening box, wherein a first-stage screening plate, a second-stage screening plate and a third-stage screening plate are installed inside the screening box, the disinfection and cleaning assembly comprising multiple disinfection tubes, wherein multiple high-pressure nozzles are distributed on the side of the disinfection tubes, the high-pressure nozzles are disposed inside the screening box, a connecting pipe is connected to the side of the disinfection tubes, and multiple electric telescopic rods are symmetrically distributed inside the screening box, wherein a scraper is installed at one end of the electric telescopic rod.

[0007] Preferably, the vibration assembly includes a vibration motor, which is disposed on the side of the screening box. A support frame is installed on the outside of the screening box, and buffer dampers are installed at the four bottom corners of the support frame. Springs are wound around the outside of the buffer dampers.

[0008] Preferably, the screening box has multiple grooves distributed on its side, and a sealing plate is movably installed inside the grooves.

[0009] Preferably, a pump is installed at one end of the connecting pipe, and a storage box is installed at the bottom of the pump.

[0010] Preferably, a hopper is installed at the bottom of the screening box, and a discharge pipe is installed at the bottom of the hopper.

[0011] Preferably, a support plate is installed at the bottom of the buffer damper, and the storage box is located on top of the support plate.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the disinfectant is drawn from the storage tank by a pump, transported to the inside of the disinfection tube through a connecting pipe, and finally sprayed out through a high-pressure nozzle. This facilitates the disinfection of the inside of the screening box, avoids corrosion of the screening box by residual chemical reagents and auxiliaries, reduces the maintenance and repair costs of the screening box, and extends its service life. Then, the electric telescopic rod extends and retracts, which helps the scraper to remove residual chemical reagents and auxiliaries on the screening plate, ensuring the cleanliness of the screening plate, improving the screening efficiency of the screening plate, and reducing the corrosion of the screening plate by residual chemical reagents and auxiliaries, thus extending the service life of the screening plate.

[0014] 2. In this utility model, a vibrating motor is used to drive the screening box to vibrate, which is beneficial for achieving vibratory screening. This causes the chemical reagent and auxiliary agent particles to continuously jump on the screening plate, reducing mutual blockage between particles and thus accelerating their passage through the screening holes, which helps to improve screening efficiency. At the same time, the continuous vibration reduces the long-term residence and accumulation of chemical reagents and auxiliary agents on the screening plate, reducing the possibility of screen hole blockage. While the screening box vibrates, the spring and buffer damper provide effective buffering, ensuring that the vibratory screening operation is stable. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural diagram of a multi-stage screening device;

[0016] Figure 2 This utility model presents another structural schematic diagram of a multi-stage screening device;

[0017] Figure 3 This utility model provides a schematic diagram of the buffer component structure of a multi-stage screening device;

[0018] Figure 4 This invention provides a schematic diagram of the internal cross-sectional structure of a multi-stage screening device.

[0019] Legend: 1. Screening assembly; 101. Screening box; 102. First-stage screening plate; 103. Second-stage screening plate; 104. Third-stage screening plate; 105. Feed pipe; 2. Vibration assembly; 201. Vibration motor; 202. Support frame; 203. Spring; 204. Buffer damper; 205. Support plate; 3. Disinfection and cleaning assembly; 301. High-pressure nozzle; 302. Disinfection pipe; 303. Connecting pipe; 304. Pump; 305. Storage box; 306. Electric telescopic rod; 307. Scraper; 308. Slide groove; 309. Sealing plate. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figures 1-4As shown, this utility model provides a technical solution: a multi-stage screening device, including a screening component 1, a vibration component 2 disposed on the side of the screening component 1, and a disinfection and cleaning component 3 disposed inside the screening component 1. The screening component 1 includes a screening box 101, inside which a first-stage screening plate 102, a second-stage screening plate 103, and a third-stage screening plate 104 are installed. The disinfection and cleaning component 3 includes multiple disinfection tubes 302, and multiple high-pressure nozzles 3 are distributed on the side of the disinfection tubes 302. 01. A high-pressure nozzle 301 is installed inside the screening box 101. A connecting pipe 303 is connected to the side of the disinfection pipe 302. Multiple electric telescopic rods 306 are symmetrically distributed inside the screening box 101. A scraper 307 is installed at one end of the electric telescopic rod 306. Multiple sliding grooves 308 are distributed on the side of the screening box 101. A sealing plate 309 is movably installed inside the sliding groove 308. A pump 304 is installed at one end of the connecting pipe 303. A storage box 305 is installed at the bottom of the pump 304.

[0023] In this embodiment, the sieving box 101 is internally equipped with a first-stage sieving plate 102, a second-stage sieving plate 103, and a third-stage sieving plate 104, which facilitates the grading and sieving of chemical reagents and auxiliaries, improving the accuracy of sieving. After the sieving process is completed inside the sieving box 101, the pump 304 draws disinfectant from the storage tank 305, which is then transported to the disinfection tube 302 via the connecting pipe 303. Finally, it is sprayed out through the high-pressure nozzle 301, effectively disinfecting the interior of the sieving box 101 and preventing residual chemical reagents and auxiliaries from corroding the sieving box 101. The internal structure reduces the maintenance and repair costs of the screening box 101, thereby extending its service life. The electric telescopic rod 306 extends and retracts, facilitating the scraper 307 to remove residual chemical reagents and additives from the screening plate, ensuring cleanliness and preventing them from adhering to the plate. This improves screening efficiency and reduces corrosion from residual chemical reagents and additives, further extending the plate's service life. Finally, the movable sealing plate 309 slides inside the chute 308, facilitating the discharge of the scraped chemical reagents and additives.

[0024] Example 2: As Figures 1-4 As shown, the vibration assembly 2 includes a vibration motor 201, which is located on the side of the screening box 101. A support frame 202 is installed on the outside of the screening box 101. Buffer dampers 204 are installed at the four bottom corners of the support frame 202. Springs 203 are wound around the outside of the buffer dampers 204. A hopper is installed at the bottom of the screening box 101. A discharge pipe 105 is installed at the bottom of the hopper. A support plate 205 is installed at the bottom of the buffer dampers 204. A storage box 305 is located on top of the support plate 205.

[0025] In this embodiment, during the screening of chemical reagents and auxiliaries by the first-stage screening plate 102, the second-stage screening plate 103, and the third-stage screening plate 104, the vibration motor 201 operates, thereby driving the screening box 101 to vibrate. This facilitates vibratory screening, causing the chemical reagent and auxiliary particles to continuously jump on the screening plates, reducing mutual blockage between particles and thus accelerating their passage through the screening holes, which improves screening efficiency. At the same time, the continuous vibration reduces the long-term residence and accumulation of chemical reagents and auxiliaries on the screening plates, reducing the possibility of screen hole blockage. While the screening box 101 vibrates, the spring 203, in conjunction with the buffer damper 204, provides effective buffering, ensuring the smooth operation of the vibratory screening. Finally, the screened material is discharged from the feed pipe 105 through the feed hopper.

[0026] The working principle of this embodiment is as follows: In use, chemical reagents and auxiliaries are first poured into the screening box 101. The screening box 101 contains a first-stage screening plate 102, a second-stage screening plate 103, and a third-stage screening plate 104, which facilitates the grading and screening of the chemical reagents and auxiliaries. Simultaneously, the vibration motor 201 operates, causing the screening box 101 to vibrate, thus achieving vibratory screening. The spring 203, in conjunction with the damper 204, provides effective buffering, ensuring smooth operation of the vibratory screening. Finally, the screened material is passed through… Material is fed through the hopper into the feeding pipe 105. After the internal screening of the screening box 101 is completed, the disinfectant inside the storage box 305 is drawn out by the pump 304 and transported to the inside of the disinfection pipe 302 through the connecting pipe 303. Finally, it is sprayed out through the high-pressure nozzle 301, which is conducive to disinfecting the inside of the screening box 101 and avoids the corrosion of the inside of the screening box 101 by residual chemical reagents and auxiliaries. Then, the electric telescopic rod 306 is extended and retracted, which is conducive to the scraper 307 scraping off the residual chemical reagents and auxiliaries on the screening plate, ensuring the cleanliness of the screening plate.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A multi-stage screening device, comprising a screening assembly (1), characterized in that: The screening component (1) is provided with a vibration component (2) on its side, and a disinfection and cleaning component (3) is provided inside the screening component (1). The screening component (1) includes a screening box (101). The screening box (101) is equipped with a first-stage screening plate (102), a second-stage screening plate (103), and a third-stage screening plate (104). The disinfection and cleaning component (3) includes multiple disinfection tubes (302). Multiple high-pressure nozzles (301) are distributed on the side of the disinfection tubes (302). The high-pressure nozzles (301) are located inside the screening box (101). A connecting pipe (303) is connected to the side of the disinfection tubes (302). Multiple electric telescopic rods (306) are symmetrically distributed inside the screening box (101). A scraper (307) is installed at one end of the electric telescopic rod (306).

2. The multi-stage screening device according to claim 1, characterized in that: The vibration assembly (2) includes a vibration motor (201), which is located on the side of the screening box (101). A support frame (202) is installed on the outside of the screening box (101), and buffer dampers (204) are installed at the four bottom corners of the support frame (202). Springs (203) are wound around the outside of the buffer dampers (204).

3. The multi-stage screening device according to claim 1, characterized in that: The screening box (101) has multiple grooves (308) distributed on its side, and a sealing plate (309) is movably installed inside the grooves (308).

4. The multi-stage screening device according to claim 2, characterized in that: A pump (304) is installed at one end of the connecting pipe (303), and a storage box (305) is installed at the bottom of the pump (304).

5. The multi-stage screening device according to claim 1, characterized in that: The bottom of the screening box (101) is equipped with a feeding hopper, and the bottom of the feeding hopper is equipped with a feeding pipe (105).

6. The multi-stage screening device according to claim 4, characterized in that: The bottom of the buffer damper (204) is equipped with a support plate (205), and the storage box (305) is located on top of the support plate (205).

Images