CN223543453U

CN223543453U - Linear vibrating screen

Info

Publication number: CN223543453U
Application number: CN202423011045.7U
Authority: CN
Inventors: 王彦兵; 王生; 孙建军; 武序根; 樊国波; 王金星
Original assignee: Jinan Iron And Steel Group Co ltd
Current assignee: Jinan Iron And Steel Group Co ltd
Priority date: 2024-12-06
Filing date: 2024-12-06
Publication date: 2025-11-14
Anticipated expiration: 2034-12-06

Abstract

This utility model discloses a linear vibrating screen, belonging to the technical field of screening devices. It includes a screen box mounted on a base via a buffer mechanism and equipped with dual vibrating motors; a block screen plate and a powder screen plate, respectively arranged vertically and inclined downwards on the screen box; a feed hopper located on the screen box near the upper end of the block screen plate; and a block guide plate and a powder hopper respectively located at the lower end and bottom of the powder screen plate. The screen box is equipped with downwardly inclined guard plates located on the left and right sides of the block screen plate, with a cleaning device on one side of the guard plate that reciprocates along the inclined direction of the block screen plate to clean it. This linear vibrating screen effectively separates powder lumps from tailings and prevents screen clogging.

Description

Linear vibrating screen

Technical Field

The utility model belongs to the technical field of screening devices, and particularly relates to a linear vibrating screen.

Background

During the steel smelting process, a large amount of steel slag is generated, and the steel slag occupies land resources and causes environmental pollution. Therefore, the effective treatment and resource utilization of tailings are important links for realizing sustainable development of iron and steel enterprises.

The slag selecting workshop is a place for treating tailings generated in a steelmaking process in the steel industry, the main task of the slag selecting workshop is to refine the tailings, a plurality of steps such as crushing, screening and magnetic separation are needed, in the screening process, a linear vibrating screen is usually adopted to separate powder blocks in the tailings, the conventional linear vibrating screen mainly comprises a screen box arranged on a base through a buffer mechanism, a double vibrating motor arranged on the screen box, a multi-layer screen plate arranged on the screen box, and a feed inlet and a discharge outlet which are arranged on the screen box and are respectively positioned at two ends of the screen plate, the double vibrating motors synchronously rotate in opposite directions, centrifugal forces are generated by eccentric blocks on two motor shafts, the centrifugal forces are offset in the vertical direction and are mutually overlapped in the horizontal direction, and the material is linearly vibrated on a screen surface due to the combination of the forces, so that the efficient material screening is realized. However, in the process of screening tailings, the quantity of tailings is huge, the sieve holes of the upper layer sieve plate are easy to be blocked by the traditional linear vibrating sieve, and the screening effect of powder blocks is poor.

Accordingly, there is a need for a linear vibrating screen that is effective in separating the dust cake from the tailings and preventing clogging of the screen holes.

Disclosure of utility model

The utility model aims to provide a linear vibrating screen which can effectively separate powder blocks in tailings and prevent screen holes from being blocked.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

A linear vibrating screen comprises a screen box provided with double vibrating motors and arranged on a base through a buffer mechanism, and further comprises a block screen plate and a powder screen plate which are correspondingly arranged on the screen box and incline downwards, a blanking box arranged on the screen box and close to the upper end of the block screen plate, and a block guide plate and a powder storage bin which are respectively arranged at the lower end and the bottom of the powder screen plate, wherein downward inclined guard plates respectively arranged at the left side and the right side of the block screen plate are arranged on the screen box, and a cleaning device for cleaning the block screen plate along the inclined direction of the block screen plate in a reciprocating manner is arranged on the guard plate at one side.

The technical scheme of the utility model is further improved in that the block screen plate is divided into an upper part and a lower part, coarse screen holes are uniformly distributed in the lower part of the block screen plate, middle screen holes with the aperture smaller than that of the coarse screen holes are uniformly distributed in the upper part of the block screen plate, and the powder screen plate is correspondingly arranged below the middle screen hole part of the block screen plate and is uniformly distributed with fine screen holes with the aperture smaller than that of the middle screen holes.

The technical scheme of the utility model is further improved in that the block-shaped material guide plate is arranged at the lower end of the powder material sieve plate and extends downwards in a tilting manner to correspond to the coarse sieve hole part of the block-shaped material sieve plate.

The cleaning device comprises a linear transmission mechanism arranged on the outer wall of a guard plate at one side of a block screen plate, a chute which is arranged on the guard plate in a penetrating way and is matched with the linear transmission mechanism, a sliding block which is arranged on the chute in a sliding way, one side of the sliding block is connected with the linear transmission mechanism, and a cleaning brush which is connected with the other side of the sliding block and is positioned at the top of the block screen plate, wherein the linear transmission mechanism and the chute are arranged along the inclination direction of the guard plate, and the inclination angles of the linear transmission mechanism and the chute are matched with the block screen plate.

The technical scheme of the utility model is further improved that the linear transmission mechanism comprises a screw rod, a nut sleeve and a positive and negative rotating motor, wherein the two ends of the screw rod are respectively arranged on the outer wall of a guard plate on one side of a block material sieve plate through bearing blocks, the nut sleeve is sleeved on the screw rod and connected with a sliding block, and the positive and negative rotating motor is connected with the end part of the screw rod, wherein the screw rod is arranged along the inclined direction of the guard plate, and the inclined angle of the screw rod is matched with the block material sieve plate.

The technical scheme of the utility model is further improved that the buffer mechanism comprises brackets which are respectively and correspondingly arranged on the left side and the right side of the screen box, elastic components which are respectively arranged on the tops of the brackets, and triangular frames which are respectively arranged on the brackets through the elastic components and are connected with the outer wall of the screen box.

The technical scheme of the utility model is further improved in that the elastic part is an elastic pier or a spring, and the cleaning brush is a brush or a wire brush.

The technical scheme of the utility model is further improved in that a discharging opening is formed in the side wall of the discharging box, which is close to the block sieve plate, a discharging guide plate with the bottom hinged with the discharging opening is arranged on the discharging opening, and a buckle is arranged between the discharging guide plate and the discharging box around the discharging opening.

The technical proposal of the utility model is further improved in that the coarse sieve holes and the middle sieve holes on the block sieve plate and the fine sieve holes on the powder sieve plate are rectangular holes.

By adopting the technical scheme, the utility model has the following technical progress:

The linear vibrating screen can effectively separate powder blocks in tailings, and meanwhile, the screen plate can be cleaned regularly, so that screen holes are prevented from being blocked.

The block screen plate adopted by the utility model is divided into an upper part and a lower part, coarse screen holes are uniformly distributed at the lower part of the block screen plate, middle screen holes with the aperture smaller than the coarse screen holes are uniformly distributed at the upper part of the block screen plate, and the powder screen plate is correspondingly arranged below the middle screen hole part of the block screen plate and fine screen holes with the aperture smaller than the middle screen holes are uniformly distributed. The block baffle is arranged at the lower end of the powder sieve plate and extends downwards in a tilting way to correspond to the coarse sieve hole part of the block sieve plate. After the tailings is fed, the large-size blocks cannot pass through the middle sieve holes on the block sieve plate, are guided and supported into the containers of the blocks by the block guide plates after being directly screened down by the coarse sieve holes, and the small-size blocks and powder are screened down onto the powder sieve plate by the middle sieve holes on the block sieve plate, so that the small-size blocks cannot pass through the fine sieve holes on the powder sieve plate, are supported into the containers of the blocks after being guided by the block guide plates, and are supported into the powder storage bins at the bottom of the powder sieve plate after being guided down by the fine sieve holes on the powder sieve plate, thereby being capable of separating the powder blocks in the tailings quickly and effectively.

The cleaning device comprises a linear transmission mechanism which is matched with each other and is arranged on the outer wall of a guard plate on one side of a block material sieve plate, a chute which is arranged on the guard plate in a penetrating way and is matched with the linear transmission mechanism, a sliding block which is connected with the linear transmission mechanism on one side and is arranged on the chute of the guard plate in a sliding way, and a cleaning brush which is connected with the other side of the sliding block and is positioned at the top of the block material sieve plate. The linear transmission mechanism can drive the sliding block to reciprocate along the sliding groove in the inclined direction of the guard plate, so that the cleaning brush is driven to reciprocate along the inclined direction of the block sieve plate at the top of the block sieve plate, the cleaning brush is matched with the vibration of the vibrating screen, the block sieve plate can be cleaned quickly and effectively, the blocking of sieve holes is prevented, the blocking of the sieve holes can be effectively prevented through regular cleaning action, and the filtering efficiency of the sieve plate is ensured.

Drawings

FIG. 1 is a schematic view of a linear vibrating screen of the present utility model;

FIG. 2 is an exploded view of the linear vibrating screen of the present utility model;

FIG. 3 is a schematic view of the structure of the cleaning device in the linear vibrating screen of the present utility model;

Wherein, 1, base, 2, screen box, 3, double vibration motor, 4, lump material screen, 4-1, coarse screen, 4-2, middle screen, 5, powder material screen, 5-1, fine screen, 6, blanking box, 6-1, blanking mouth, 6-2, blanking guide plate, 6-3, buckle, 7, powder material bin, 8, lump material guide plate, 9, guard plate, 10, bracket, 11, elastic component, 12, tripod, 13, chute, 14, slide block, 15, cleaning brush, 16, linear transmission mechanism, 16-1, bearing seat, 16-2, lead screw, 16-3, nut sleeve.

Detailed Description

The utility model is further illustrated by the following examples:

As shown in fig. 1 and 2, the present utility model provides a linear vibrating screen including a buffer mechanism provided on a base 1 and a screen box 2 provided on the base 1 through the buffer mechanism and mounted with a double vibrating motor 3. The buffer mechanism comprises four brackets 10, elastic components 11 respectively arranged at the tops of the brackets 10, and triangular frames 12 respectively arranged on the brackets 10 through the elastic components 11, wherein the four brackets 10 are correspondingly arranged at the left side and the right side of the screen box 2, and the triangular frames 12 on the four brackets 10 are respectively connected with the outer wall of the screen box 2. Preferably, the elastic member 11 is an elastic pier or a spring.

The linear vibrating screen also comprises a block screen plate 4, a powder screen plate 5, a discharging box 6, a block guide plate 8 and a powder bin 7. Wherein, the setting that corresponds from top to bottom of lump matter sieve plate 4 and powder sieve plate 5 is on sieve case 2, and lump matter sieve plate 4 and powder sieve plate 5 are located the top of sieve case 2 promptly to lump matter sieve plate 4 and powder sieve plate 5 all incline the setting downwards, and the inclination of the two is unanimous. The blanking box 6 is arranged on the screen box 2 and is close to the upper end of the block screen plate 4, so that the blanking is convenient at the upper end of the block screen plate 4, and the upper end of the block screen plate 4 which is arranged in a downward inclined manner is the highest point of the inclination. The block material guide plate 8 and the powder material bin 7 are respectively arranged at the lower end and the bottom of the powder material sieve plate 5, the block material guide plate 8 is used for guiding the block materials sieved by the block material sieve plate 4, the powder material bin 7 is used for containing the powder materials sieved by the powder material sieve plate 5, and the lower end of the powder material sieve plate 5 which is arranged in a downward inclined manner is the lowest inclined point. The guard plates 9 which are respectively positioned at the left side and the right side of the block material sieve plate 4 are arranged on the sieve box 2, namely, the two guard plates 9 are respectively arranged at the top parts of the side walls at the left side and the right side of the sieve box 2, so that the side walls at the left side and the right side of the sieve box 2 are heightened, the two guard plates 9 are obliquely arranged downwards, the inclination angle is consistent with the block material sieve plate 4, and the cleaning device which moves reciprocally along the inclination direction of the block material sieve plate 4 is arranged on the guard plate 9 at one side, so that the block material sieve plate 4 can be cleaned.

Specifically, a blanking opening 6-1 is formed in a side wall of the blanking box 6, which is close to the block material sieve plate 4, a blanking guide plate 6-2 with the bottom hinged to the blanking opening 6-1 is arranged on the blanking opening 6-1, namely, the bottom of the blanking guide plate 6-2 and the bottom of the blanking opening 6-1 can be hinged through a pin shaft, a buckle 6-3 is arranged between the blanking guide plate 6-2 and the blanking box 6 around the blanking opening 6-1, the buckle 6-3 can be a magnetic buckle or a bolt buckle and the like, and when the blanking box is not used, the blanking opening 6-1 can be closed.

Further, the block screen 4 is divided into an upper part and a lower part, coarse screen holes 4-1 are uniformly distributed at the lower part, middle screen holes 4-2 with the aperture smaller than that of the coarse screen holes 4-1 are uniformly distributed at the upper part, and the powder screen 5 is correspondingly arranged below the middle screen holes 4-2 of the block screen 4 and is uniformly distributed with fine screen holes 5-1 with the aperture smaller than that of the middle screen holes 4-2. The block deflector 8 is disposed at the lower end of the powder screening deck 5 and extends obliquely downward to correspond to the coarse screening holes 4-1 of the block screening deck 4. Preferably, the coarse 4-1 and middle 4-2 openings in the cake screen 4 and the fine 5-1 openings in the powder screen 5 are rectangular openings.

After the tailings are discharged from the discharging box 6, the large-size blocks cannot pass through the middle sieve holes 4-2 on the block sieve plate 4, are directly sieved by the coarse sieve holes 4-1 and then are guided and loaded into a container of the blocks by the block guide plate 8, the small-size blocks and powder are sieved by the middle sieve holes 4-2 on the block sieve plate 4 and then are loaded onto the powder sieve plate 5, the small-size blocks cannot pass through the fine sieve holes 5-1 on the powder sieve plate 5, are guided and loaded into the container of the blocks by the block guide plate 8, and the powder is screened by the fine sieve holes 5-1 on the powder sieve plate 5 and then is loaded into the powder bin 7 at the bottom of the powder sieve plate 5, so that the powder blocks in the tailings can be effectively separated.

Further, the cleaning device comprises a linear transmission mechanism 16, a chute 13, a sliding block 14 and a cleaning brush 15 which are matched with each other. The linear transmission mechanism 16 is arranged on the outer wall of the guard plate 9 on one side of the block screen plate 4, and the linear transmission mechanism 16 is arranged along the inclined direction of the guard plate 9. The sliding groove 13 is arranged on the guard plate 9 in a penetrating manner and is matched with the linear transmission mechanism 16, namely, the sliding groove 13 is also arranged along the inclined direction of the guard plate 9, so that the inclined angles of the linear transmission mechanism 16 and the sliding groove 13 are matched with the block sieve plate 4, namely, the inclined angles of the three are consistent. The sliding block 14 is slidably arranged on the sliding groove 13 of the guard plate 9, one side of the sliding block 14 is connected with the linear transmission mechanism 16, and the cleaning brush 15 is connected with the other side of the sliding block 14 and is positioned at the top of the block screen plate 4, preferably, the cleaning brush 15 is a brush or a wire brush.

When the block-shaped material screen plate 4 which is easiest to block is required to be cleaned, the tailing discharging can be stopped firstly, the discharging opening 6-1 is closed, but the linear vibrating screen is kept started, the linear transmission mechanism 16 is started, the sliding block 14 is driven to reciprocate along the sliding groove 13 in the inclined direction of the guard plate 9, so that the cleaning brush 15 is driven to reciprocate along the inclined direction of the block-shaped material screen plate 4 at the top of the block-shaped material screen plate 4, the cleaning brush 15 is matched with the vibration of the vibrating screen, the block-shaped material screen plate 4 can be cleaned quickly and effectively, the screen holes are prevented from being blocked, and the filtering efficiency of the screen plate is ensured through regular cleaning actions.

Specifically, as shown in fig. 3, the linear transmission mechanism 16 includes a screw 16-2, a nut sleeve 16-3, and a forward and reverse rotation motor, wherein two ends of the screw 16-2 are respectively disposed on an outer wall of the guard plate 9 at one side of the block screen 4 through bearing seats 16-1, and the screw 16-2 is disposed along an inclined direction of the guard plate 9, and an inclined angle of the screw 16-2 is adapted to the block screen 4. The nut sleeve 16-3 is sleeved on the screw 16-2 and connected with one side of the slide block 14, and the forward and reverse rotation motor is connected with the end part of the screw 16-2. When the forward and reverse rotation motor is started and rotates forward, the nut sleeve 16-3 moves along the axial direction of the screw rod 16-2, so that the slide block 14 is driven to move upwards along the sliding groove 13, and when the forward and reverse rotation motor rotates reversely, the nut sleeve 16-3 moves along the axial direction of the screw rod 16-2, so that the slide block 14 is driven to move downwards along the sliding groove 13. By controlling the forward and backward rotation of the motor, the reciprocating movement of the sliding block 14 and the cleaning brush 15 connected with the sliding block on the top of the block-shaped sieve plate 4 is realized, so that the sieve plate is cleaned.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. A linear vibrating screen comprises a screen box (2) provided with a double vibrating motor (3) and arranged on a base (1) through a buffer mechanism, and is characterized by further comprising a block screen plate (4) and a powder screen plate (5) which are correspondingly arranged on the screen box (2) up and down and incline downwards, a blanking box (6) arranged on the screen box (2) and close to the upper end of the block screen plate (4), a block guide plate (8) and a powder storage bin (7) which are respectively arranged at the lower end and the bottom of the powder screen plate (5), wherein downward inclined guard plates (9) which are respectively arranged at the left side and the right side of the block screen plate (4) are arranged on the screen box (2), and a cleaning device which is used for cleaning the block screen plate (4) in a reciprocating manner along the incline direction of the block screen plate (4) is arranged on one side of the guard plates (9).

2. A linear vibrating screen according to claim 1, wherein the block screen plate (4) is divided into an upper part and a lower part, coarse screen holes (4-1) are uniformly distributed in the lower part of the block screen plate, middle screen holes (4-2) with the aperture smaller than the coarse screen holes (4-1) are uniformly distributed in the upper part of the block screen plate, and the powder screen plate (5) is correspondingly arranged below the middle screen holes (4-2) of the block screen plate (4) and fine screen holes (5-1) with the aperture smaller than the middle screen holes (4-2) are uniformly distributed.

3. A linear vibration screen according to claim 2, wherein the cake deflector (8) is provided at the lower end of the powder screening deck (5) and extends obliquely downward in correspondence with the coarse screening (4-1) portion of the cake screening deck (4).

4. A linear vibrating screen according to any one of claims 1-3, wherein the cleaning device comprises a linear transmission mechanism (16) arranged on the outer wall of a guard plate (9) on one side of a block screen plate (4), a sliding groove (13) which is arranged on the guard plate (9) in a penetrating way and is matched with the linear transmission mechanism, a sliding block (14) which is arranged on the sliding groove (13) in a sliding way, one side of the sliding block is connected with the linear transmission mechanism (16), and a cleaning brush (15) which is connected with the other side of the sliding block (14) and is positioned at the top of the block screen plate (4), wherein the linear transmission mechanism (16) and the sliding groove (13) are both arranged along the inclined direction of the guard plate (9), and the inclined angle of the linear transmission mechanism and the sliding groove (13) are matched with the block screen plate (4).

5. A linear vibrating screen according to claim 4, wherein the linear transmission mechanism (16) comprises a screw rod (16-2) with two ends respectively arranged on the outer wall of a guard plate (9) at one side of a block screen plate (4) through bearing blocks (16-1), a nut sleeve (16-3) sleeved on the screw rod (16-2) and connected with a sliding block (14), and a positive and negative rotating motor connected with the end part of the screw rod (16-2), wherein the screw rod (16-2) is arranged along the inclination direction of the guard plate (9) and the inclination angle of the screw rod is matched with the block screen plate (4).

6. The linear vibrating screen according to claim 5, wherein the buffer mechanism comprises brackets (10) respectively arranged on the left side and the right side of the screen box (2) in a front-back corresponding mode, elastic components (11) respectively arranged on the tops of the brackets (10), and triangular supports (12) respectively arranged on the brackets (10) through the elastic components (11) and connected with the outer wall of the screen box (2).

7. A linear vibrating screen according to claim 6, wherein the elastic member (11) is an elastic pier or a spring, and the cleaning brush (15) is a brush or a wire brush.

8. The linear vibrating screen according to claim 1, wherein a blanking opening (6-1) is formed in the side wall of the blanking box (6) close to the block material screen plate (4), a blanking guide plate (6-2) with the bottom hinged to the blanking opening (6-1) is arranged on the blanking opening (6-1), and a buckle (6-3) is arranged between the blanking guide plate (6-2) and the blanking box (6) around the blanking opening (6-1).

9. A linear vibrating screen according to claim 2, wherein the coarse screen holes (4-1) and the middle screen holes (4-2) on the lump screen (4) and the fine screen holes (5-1) on the powder screen (5) are rectangular holes.