Ultra-wide screen box and vibrating screen

Abstract

The ultra-wide screen box comprises a box body, at least one partition plate is arranged in the box body, the length direction of the partition plate is the same as that of the box body, and the partition plate divides an inner cavity of the screen box into at least two screen cavities in the width direction of the screen box. At least one layer of screen lattices are sequentially arranged in the screen cavity from top to bottom in the height direction of the screen cavity. The ultra-wide inner cavity of the screen box is divided into at least two screen cavities by the partition plate in the width direction of the ultra-wide inner cavity, the width of the screen cavities is shortened through division of the partition plate, and therefore the width of the screen lattices arranged in the screen cavities is shortened, middle drooping of the screen lattices in the width direction can be reduced, reciprocating jumping in the vertical direction generated when the screen lattices work can be effectively prevented, and the service life of the screen lattices is prolonged. The working efficiency of the vibrating screen is improved, the working noise is reduced, the yield is improved, and meanwhile damage to the screen lattices caused by vertical reciprocating jumping of the screen lattices is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to grain screening equipment technical field, concretely relates to a kind of super-wide sieve box and vibrating screen. BACKGROUND

[0002] Vibrating screen is the screening mechanical equipment commonly seen in present enterprise production, it mainly relies on two motors synchronous reverse rotation to make the exciter produce reverse exciting force, force screen to make screen grid do longitudinal motion, make the material on its screen surface be excited by exciting force and periodically throw forward a range of range, to complete material screening operation, the application range of vibrating screen is very extensive, almost involves all aspects of life in processing and manufacturing need to use various types of vibrating screen, vibrating screen is mainly used in food, medicine, chemical industry, light industry, refractory material, building material, coal, smelting, mining and other industries.

[0003] However, the existing vibrating screen is affected by its structural strength, the screen width of vibrating screen on the market is usually not more than 2 meters, because the sieve box of vibrating screen is arranged along the length direction of sieve box to support screen grid, if screen width is too wide, screen grid width direction lacks support, resulting in the middle of screen width direction to sag, in addition, when screening material, the middle of screen will produce vertical reciprocating jump, seriously affect the screening effect and yield of vibrating screen, moreover, the vertical reciprocating jump of the middle of screen not only leads to the increase of screening noise of vibrating screen, but also is easy to produce fatigue fracture in the middle of screen, seriously affect the service life of vibrating screen. UTILITY MODEL CONTENTS

[0004] In summary, in order to overcome the problems of prior art, the utility model provides a kind of super-wide sieve box, which is provided with a partition plate in the super-wide sieve box, the inner cavity of the super-wide sieve box is divided into at least two sieve cavities along the width direction by the partition plate, the width of the sieve cavity is shortened by the partition plate, so that the width of the screen grid arranged in the sieve cavity is shortened, which can reduce the sag of the middle of screen grid width direction, effectively prevent the vertical reciprocating jump of screen grid during work, improve the working efficiency of vibrating screen, reduce working noise, improve yield, and avoid damage to screen grid caused by vertical reciprocating jump of screen grid itself. Meanwhile, the utility model also provides a vibrating screen with the sieve box.

[0005] To solve the above technical problems, the technical scheme of the super-wide sieve box provided by the utility model is as follows:

[0006] A kind of super-wide sieve box, wherein: including: box body, at least one partition plate is arranged in the box body, the length direction of the partition plate is same with the length direction of box body, the inner cavity of the box body is divided into at least two sieve cavities along its width direction by the partition plate, at least one layer of screen grid is sequentially arranged in the sieve cavity along its height direction from top to bottom.

[0007] Further, the box has a feeding port, which is located at one side of the upper end of the box and communicates with the plurality of screen cavities in the box.

[0008] Further, the box is provided with a reinforcing frame, which is located at the middle of the length direction of the box, the length direction of the reinforcing frame is the same as the width direction of the box, the reinforcing frame supports the top plate of the box, and the two ends of the reinforcing frame are connected with the two side plates in the width direction of the box.

[0009] Further, the screen cavity is provided with a supporting rail for supporting the screen grid, and the supporting rail is connected with the side plate of the screen cavity.

[0010] Further, the screen grid is provided with a protruding portion on the side connected with the side plate of the screen cavity, the top surface of the protruding portion is a slope surface, the bottom surface of the pressing portion of the pressing rod is a slope surface, and the slope surface of the pressing rod is in contact with the slope surface of the protruding portion of the screen grid.

[0011] Further, the screen grid is provided with a protruding portion on the side connected with the side plate of the screen cavity, the top surface of the protruding portion is a slope surface, the bottom surface of the pressing portion of the pressing rod is a slope surface, and the slope surface of the pressing rod is in contact with the slope surface of the protruding portion of the screen grid.

[0012] The technical scheme of the vibrating screen provided by the utility model is realized as follows:

[0013] A vibrating screen comprises a supporting frame, a power device, a screen box and a feeding hopper, the screen box is connected with the supporting frame, the power device is connected with the screen box, the power device drives the screen box to move, the supporting frame is provided with the feeding hopper, the screen box has a feeding port, the lower end opening of the feeding hopper is communicated with the feeding port of the screen box through a connecting hose, and the screen box is the screen box.

[0014] The utility model has the advantages of:

[0015] 1、The utility model discloses a partition plate is arranged in the super wide screen box, the inner chamber of the super wide screen box is divided into at least two screen cavities along the width direction of the screen box, the width of the screen cavity is shortened through the division of the partition plate, thereby the width of the screen grid arranged in the screen cavity is shortened, the middle part of the screen grid in the width direction can be reduced, the reciprocating jump in the vertical direction generated when the screen grid works can be effectively prevented, the working efficiency of the vibrating screen is improved, the working noise is reduced, the yield is improved, and the damage of the screen grid to the screen grid itself caused by the vertical reciprocating jump of the screen grid is avoided.

[0016] 2, the top surface of the protruding part of the screen grid is a slope surface, the bottom surface of the pressing part of the pressing lever is a slope surface, the slope surface of the pressing lever is in contact with the slope surface of the protruding part of the screen grid, when the connecting part of the pressing lever is connected with the side plate of the screen cavity, due to the existence of the slope surface and the slope surface, the pressing lever applies downward pressure to the screen grid, the screen grid is pressed and mounted on the supporting rail, thereby realizing the pressing and fixing of the screen grid and the box body. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is width direction structure schematic view of the super-wide screen box of the utility model;

[0018] Figure 2 It is length direction structure schematic view of the super-wide screen box of the utility model;

[0019] Figure 3 It is structure schematic view of the partition plate of the utility model;

[0020] Figure 4 It is structure schematic view of the utility model Figure 1 It is enlarged schematic view of A part;

[0021] Figure 5 It is structure schematic view of the reinforcing frame of the utility model. DETAILED DESCRIPTION

[0022] The utility model will be further explained in detail in combination with the drawings.

[0023] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, an ultra-wide screen box includes a box body 1. A partition 2 is provided inside the box body 1. The length direction of the partition 2 is the same as the length direction of the box body 1. The partition 2 divides the inner cavity of the box body into two screen chambers 6 along its width direction. The box body 1 has a feed inlet 3, which is located on one side of the upper end of the box body 1 and communicates with the two screen chambers 6 inside the box body 1. Each of the two sieve chambers 6 has two layers of sieve grids arranged sequentially from top to bottom along its height. The two layers are an upper sieve grid 4 and a lower sieve grid 5 arranged sequentially from top to bottom. The mesh size of the upper sieve grid 4 is larger than the particle size of the material to be screened, while the mesh size of the lower sieve grid 5 is smaller than the particle size of the material to be screened. The upper sieve grids 4 and the lower sieve grids 5 in both sieve chambers 6 are arranged at the same height. These upper and lower sieve grids divide the sieve chamber 6 into three screening chambers arranged sequentially from top to bottom: an upper screening chamber, a middle screening chamber, and a lower screening chamber. On the side of the sieve body away from the feed inlet 3, there is a large impurity outlet 7, a clean grain outlet 8, and a small impurity outlet 9. The large impurity outlet 7 connects to the upper screening chamber of both sieve chambers 6, the clean grain outlet 8 connects to the middle screening chamber of both sieve chambers 6, and the small impurity outlet 9 connects to the lower screening chamber of both sieve chambers 6.

[0024] Each of the two sieve chambers 6 is equipped with a support rail 10 for supporting the sieve grid, and the support rail 10 is connected to the side plate of the sieve chamber 6. A pressure bar 11 is provided inside the sieve chamber 6. The pressure bar 11 has a connecting part 110 that connects to the side plate of the sieve chamber 6 and a pressing part 111 that contacts the top surface of the sieve grid. The connecting part 110 and the pressing part 111 are arranged at an angle, and the pressure bar 11 presses the sieve grid tightly onto the support rail 10. A protrusion 112 is provided on the side of the sieve grid connected to the side plate of the sieve chamber 6. The top surface of the protrusion 112 is a sloped surface, and the bottom surface of the pressing part 111 of the pressure bar 11 is a sloped surface. The sloped surface of the pressure bar 11 contacts and engages with the sloped surface of the protrusion 112 of the sieve grid.

[0025] The box 1 is provided with a reinforcing frame 12, which is located in the middle of the length direction of the box 1. The length direction of the reinforcing frame 12 is the same as the width direction of the box 1. The reinforcing frame 12 supports the top plate of the box 1, and the two ends of the reinforcing frame 12 are respectively connected to the two side plates of the box 1 in the width direction.

[0026] A vibrating screen includes a support frame, a power unit, a screen box, and a feed hopper. The screen box is connected to the support frame, and the power unit is connected to the screen box. The power unit drives the screen box to move. The support frame is provided with a feed hopper. The screen box has a feed inlet 3. The lower opening of the feed hopper is connected to the feed inlet 3 of the screen box through a connecting hose. The screen box is the screen box described above.

[0027] When screening grain materials, the power unit of the vibrating screen is started. The power unit drives the screen box to screen the grain materials. The grain materials enter from the feed hopper and enter the box 1 of the screen box along the feed hopper and connecting hose. Due to the presence of the partition 2, the grain materials enter the upper screening chamber on both sides of the partition 2. Since the mesh size of the upper screen plate 4 is larger than the particle size of the grain materials, the grain materials fall onto the lower screen plate 5 along the mesh size of the upper screen plate 4. Impurities with particles larger than the mesh size of the upper screen plate 4 flow along the upper screen plate 4 and flow out from the large impurity outlet 7. Since the mesh size of the lower screen plate 5 is smaller than the particle size of the grain materials, the smaller particles of impurities in the grain materials fall onto the bottom plate of the box 1 through the mesh size of the lower screen plate 5. Clean grains flow along the lower screen plate 5 and flow out from the clean grain outlet 8. Small impurities that fall onto the bottom plate of the box 1 flow onto the bottom plate and flow out from the small impurity outlet 9, thereby achieving the screening and removal of impurities from the grain materials.

[0028] This embodiment uses an ultra-wide screen box. Due to the presence of the partition 2, the inner cavity of the screen box 1 is divided into two screen chambers 6 along its width. The screen grids are set in the screen chambers 6, shortening the width of the screen grids and reducing the weight of each screen grid. This reduces the sagging in the middle of the screen grid in the width direction and effectively prevents the screen grids from jumping back and forth vertically during operation, improving the working efficiency of the vibrating screen, reducing working noise, increasing output, and avoiding damage to the screen grids themselves caused by vertical jumping back and forth. Using the screen box structure of this utility model, the width of a single screen box can be 2-3 meters, greatly increasing the output of a single vibrating screen. One vibrating screen can achieve the output of two original vibrating screens, effectively reducing screening costs and space requirements.

[0029] It should be noted that the above-described embodiments are illustrative of the technical solution of this utility model and not limiting. Equivalent substitutions or other modifications made by those skilled in the art based on the prior art, as long as they do not exceed the concept and scope of the technical solution of this utility model, should be included within the scope of the claims of this utility model.

Claims

1. An ultra-wide screen box characterized by: The application relates to a super-wide sieve box. The box is provided with at least one partition plate, the length direction of the partition plate is the same as the length direction of the box, the partition plate divides the inner cavity of the box into at least two sieve cavities along the width direction of the box, and at least one sieve grid is arranged in the sieve cavities along the height direction from top to bottom.

2. The super-wide screen box according to claim 1, characterized in that: The box is provided with a feeding port which is located at one side of the upper end of the box and communicates with the sieve cavities in the box.

3. The superwide screen box of claim 1, wherein: The sieve cavities are provided with supporting rails for supporting the sieve grids, and the supporting rails are connected with the side plates of the sieve cavities.

4. The superwide screen box of claim 3, wherein: The box is further provided with a pressing rod which is provided with a connecting part connected with the side plates of the sieve cavities and a pressing part in contact with the top surface of the sieve grid, the connecting part and the pressing part are arranged at an angle, and the pressing rod presses the sieve grid on the supporting rails.

5. The superwide screen box of claim 4, wherein: One side of the sieve grid connected with the side plates of the sieve cavities is provided with a protruding part, the top surface of the protruding part is a slope surface, the bottom surface of the pressing part of the pressing rod is a slope surface, and the slope surface of the pressing rod is in contact with the slope surface of the protruding part of the sieve grid.

6. The super-wide screen box according to any one of claims 1 to 5, characterized in that: The box is provided with a reinforcing frame which is located at the middle part of the length direction of the box, the length direction of the reinforcing frame is the same as the width direction of the box, the reinforcing frame supports the top plate of the box, and the two ends of the reinforcing frame are connected with the two side plates of the width direction of the box.

7. A vibrating screen comprising a support frame, a power device, a screen box and a feeding hopper, the screen box being connected to the support frame, the power device being connected to the screen box, the power device driving the screen box to move, the support frame being provided with the feeding hopper, the screen box having a feeding port, the lower end opening of the feeding hopper being communicated with the feeding port of the screen box through a connecting hose, characterized in that: The sieve box is the super-wide sieve box as claimed in any one of claims 1-6.

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