CN110681561A

CN110681561A - Grit screening plant

Info

Publication number: CN110681561A
Application number: CN201810723230.9A
Authority: CN
Inventors: 余家阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-07-04
Filing date: 2018-07-04
Publication date: 2020-01-14

Abstract

A sand and stone screening device comprises a screening box, wherein a plurality of partition plates are arranged in the screening box, the screening box is divided into a plurality of screening cavities by the partition plates, the number of the screening cavities is four, screening plates are respectively arranged at the tops of the screening cavities, and a first screening hole, a second screening hole, a third screening hole and a fourth screening hole are respectively arranged on each screening plate, and the aperture of each screening hole is increased once; the conveying belt is arranged above the sieve plate, the conveying plate is fixedly arranged on the conveying belt, and the height of the fixing plate is equal to the distance between the conveying belt and the sieve plate. The invention provides a sand and stone screening device, which adopts an open structure, wherein materials are fed above a conveyor belt, fall onto a screen plate along with the conveyor belt, then the conveyor plate drives sand and stones to move forwards on the screen plate, and in the moving process, sand and stone materials with different particle sizes fall into a screening cavity from different screen holes to achieve the purpose of screening; the invention has high screening efficiency and good effect, and does not adopt a mode with higher noise such as vibration and the like for screening, thereby reducing noise pollution.

Description

Grit screening plant

Technical Field

The invention relates to the field of building construction, in particular to a sand and stone screening device.

Background

All can use the device of grit screening in many processes in building field of construction, present grit screening plant adopts forms such as vibration, rotation to sieve greatly, and its structure is complicated, and the screening effect is not good to can produce a large amount of noise pollution.

Disclosure of Invention

The invention aims to provide a sand and stone screening device which adopts a conveyer belt to drive sand and stone to move so as to carry out screening, has a simple structure and high screening efficiency, and reduces noise pollution.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a sand and stone screening device comprises a screening box, wherein a plurality of partition plates are arranged in the screening box, the screening box is divided into a plurality of screening cavities by the partition plates, the number of the screening cavities is four, screening plates are respectively arranged at the tops of the screening cavities, and a first screening hole, a second screening hole, a third screening hole and a fourth screening hole are respectively arranged on each screening plate, and the aperture of each screening hole is increased once;

the conveying belt is arranged above the sieve plate, the conveying plate is fixedly arranged on the conveying belt, and the height of the fixing plate is equal to the distance between the conveying belt and the sieve plate.

Preferably, baffles are further arranged on two sides of the sieve plate.

Preferably, a collecting box is further arranged on one side of the screening box, and the collecting box is arranged on one side close to the fourth screen hole.

Preferably, the bottom of the screening cavity is provided with a discharge hole.

The invention provides a sand and stone screening device, which adopts an open structure, wherein materials are fed above a conveyor belt, fall onto a screen plate along with the conveyor belt, then the conveyor plate drives sand and stones to move forwards on the screen plate, and in the moving process, sand and stone materials with different particle sizes fall into a screening cavity from different screen holes to achieve the purpose of screening; the invention has high screening efficiency and good effect, and does not adopt a mode with higher noise such as vibration and the like for screening, thereby reducing noise pollution.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side cross-sectional view of the present invention;

figure 3 is a top view of the screening box of the present invention.

Detailed Description

As shown in fig. 1-3, a sand screening device comprises a screening box, wherein a plurality of partition plates 1 are arranged in the screening box, the screening box is divided into a plurality of screening cavities 2 by the plurality of partition plates 1, the number of the screening cavities 2 is four, a screening plate 3 is respectively arranged at the top of each screening cavity 2, and a first screening hole 4, a second screening hole 5, a third screening hole 6 and a fourth screening hole 7 with the once-increasing aperture are respectively arranged on each screening plate 3;

a conveying belt 8 is arranged above the sieve plate 3, a conveying plate 9 is fixedly arranged on the conveying belt 8, and the height of the fixing plate 9 is the same as the distance from the conveying belt 8 to the sieve plate 3. So that the transport plate 9 moves the sand.

Preferably, baffles 10 are further arranged on two sides of the sieve plate 3.

Preferably, a collecting box 11 is further arranged on one side of the screening box, and the collecting box 11 is arranged on one side close to the fourth screen hole 7.

Preferably, the bottom of the screening chamber 2 is provided with a discharge hole 12.

During the use, feed in the top of conveyer belt, the material falls after on the conveyer belt, follows the conveyer belt and removes, then falls into on the sieve 3, conveys the board 9 afterwards and drives the grit and remove on sieve 3, and the grit that the particle size is little falls down from first sieve mesh earlier to this form, progressively sieves through second sieve mesh, third sieve mesh and fourth sieve mesh, and the big grit that can't sieve at last falls into collection case 11.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.

Claims

1. The utility model provides a grit screening plant which characterized in that: the screening device comprises a screening box, wherein a plurality of partition plates (1) are arranged in the screening box, the screening box is divided into a plurality of screening cavities (2) by the plurality of partition plates (1), four screening cavities (2) are arranged, a screening plate (3) is arranged at the top of each screening cavity (2), and a first screening hole (4), a second screening hole (5), a third screening hole (6) and a fourth screening hole (7) with the once-increasing aperture are arranged on each screening plate (3);

be equipped with conveyer belt (8) above sieve (3), fixed being equipped with on conveyer belt (8) and conveying board (9), the height of fixed plate (9) is the same with conveyer belt (8) to the distance between sieve (3).

2. A sand screening apparatus according to claim 1, wherein: and baffles (10) are arranged on two sides of the sieve plate (3).

3. A sand screening apparatus according to claim 1, wherein: and a collecting box (11) is further arranged on one side of the screening box, and the collecting box (11) is arranged on one side close to the fourth screen hole (7).

4. A sand screening apparatus according to claim 1, wherein: and a discharge hole (12) is formed in the bottom of the screening cavity (2).