A bulk screening device for a finished product store

Abstract

The utility model relates to screening equipment technical field, and disclose a kind of finished product store bulk screening device, including box, the top right side of box is connected with feed hopper, the inside of box is sequentially equipped with first screening chamber, second screening chamber and third screening chamber from top to bottom, screen plate is equipped between every two screening chambers, the right side of three screening chambers is equipped with dust collector;The left side of first screen and second screen is equipped with the discharge pipe that penetrates box;The right side bottom of dust collector is equipped with induced draft fan, dust exhaust pipe is connected with the below of dust collector, the bottom of box is leftwardly inclined and its left side bottom is equipped with slag discharge pipe, the outside of box is equipped with vibrating motor.The utility model realizes material classification screening, avoids caking blockage;Prolong the contact time of material and screen plate, improve material screening pass rate and utilization rate;Synchronous collection of dust produced in screening, guarantee operator health.

Description

Technical Field

[0001] This utility model relates to the field of screening equipment technology, and in particular to a bulk screening device for finished product warehouses. Background Technology

[0002] In the material storage, transfer, and subsequent processing stages of finished product warehouses, bulk material screening is a key pretreatment process. Currently, the bulk screening devices used in finished product warehouses mostly adopt a single screen plate or a simple grading screen plate structure, and achieve material screening by driving the screen plate to vibrate through a vibrating motor.

[0003] However, existing screening devices have many shortcomings in practical applications: First, bulk materials are prone to clumping due to moisture, compression, and other factors during storage and transportation. These clumped materials can easily clog the screen holes after entering the screening device. Second, a large amount of dust is generated during the screening process. Direct dust leakage not only pollutes the workshop environment but also poses a serious threat to the respiratory system of operators. Furthermore, the material slides too fast on the screen plate, resulting in insufficient contact with the screen plate and material residue at the bottom of the equipment, leading to low material utilization and resource waste.

[0004] Therefore, those skilled in the art urgently need to develop a bulk screening device for finished product warehouses. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a bulk screening device for finished product warehouses.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a bulk screening device for finished product warehouse, comprising a box body, wherein a feeding hopper is connected to the top right side of the box body, and a first screening chamber, a second screening chamber and a third screening chamber are arranged sequentially from top to bottom inside the box body, wherein a dust collection box is provided on the right side of the first screening chamber, the second screening chamber and the third screening chamber, and a grid is provided at the connection between the dust collection box and the first screening chamber; A first screen plate inclined to the lower left is provided between the first screening chamber and the second screening chamber, and a second screen plate inclined to the lower left is provided between the second screening chamber and the third screening chamber. The mesh size of the second screen plate is smaller than that of the first screen plate. The front and rear sides of the first screen plate and the second screen plate are connected to the inner wall of the box, and their right ends are connected to the left side wall of the dust collection box. The left side of the first sieve plate and the second sieve plate is provided with a discharge pipe that penetrates the box body. The upper and lower sides of the right end of the discharge pipe are connected to the first sieve plate and the second sieve plate, and the front and rear sides of the right end are connected to the inner wall of the box body. A blower is provided at the bottom right side of the dust collection box, and a dust discharge pipe is connected to the bottom of the dust collection box. The bottom of the box body is inclined to the lower left, and a slag discharge pipe connected to the third screening chamber is provided at the bottom left side. A vibration motor is provided on the outside of the box body.

[0007] Preferably, the feed hopper is equipped with a horizontally placed dispersing shaft that rotates inside, and multiple sets of dispersing plates are evenly distributed on the dispersing shaft. A drive motor is provided on the side wall of the feed hopper, and the drive motor is used to control the rotation of the dispersing shaft.

[0008] Preferably, a first filter screen is provided at the bottom left side of the first screening chamber, an air guide fan is provided to the left side of the first filter screen, and a second filter screen is provided at the connection between the dust collection box and the exhaust fan.

[0009] Preferably, multiple sets of baffles are provided at equal intervals above the second screen plate, and the cross-section of the multiple sets of baffles is a semi-circular structure.

[0010] Preferably, the front and rear sides of the housing are provided with two sets of support seats, each set of support seats is provided with a leg below it, and each set of support seats and the leg are provided with multiple sets of connecting springs.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention enables material grading and screening, avoiding clumping and blockage, improving the smoothness and rationality of the screening process; extending the contact time between the material and the screen plate, increasing the material screening throughput and utilization rate; and simultaneously collecting the dust generated during screening, reducing dust leakage, improving the operating environment, and protecting the health of operators. Attached Figure Description

[0012] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a front view of the structural cross-section of this utility model.

[0013] In the diagram: 1-Box body; 2-Feed hopper; 3-Dispersing shaft; 4-Dispersing plate; 5-First screen plate; 6-Second screen plate; 7-Dust collection box; 8-Grate; 9-Discharge pipe; 10-Vibration motor; 11-Exhaust fan; 12-Air guide fan; 13-First filter screen; 14-Second filter screen; 15-Slag discharge pipe; 16-Dust discharge pipe; 17-Support leg; 18-Support base; 19-Connecting spring. Detailed Implementation

[0014] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0015] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] Please see Figures 1-2 This utility model provides an embodiment: a bulk screening device for finished product warehouses, including a box body 1, which is a closed rectangular shell structure. A feed hopper 2, which is in the shape of an inverted trapezoid, is connected to the top right side of the box body 1. The interior of the box body 1 is provided with a first screening chamber, a second screening chamber, and a third screening chamber from top to bottom. A dust collection box 7 is located on the right side of the first, second, and third screening chambers, and is fixed to the right side wall of the box body 1 by bolts. A grid 8 is provided at the connection between the dust collection box 7 and the first screening chamber.

[0018] A first screen plate 5, inclined to the lower left, is provided between the first and second screening chambers. A second screen plate 6, inclined to the lower left, is provided between the second and third screening chambers. The inclination angles of the first screen plate 5 and the second screen plate 6 are both 15-25°. The mesh size of the second screen plate 6 is smaller than that of the first screen plate 5. The front and rear sides of the first screen plate 5 and the second screen plate 6 are connected to the inner wall of the box 1, and their right ends are connected to the left side wall of the dust collection box 7.

[0019] The first screen plate 5 and the second screen plate 6 are provided with a discharge pipe 9 that penetrates the box body 1 on the left side. The upper and lower sides of the right end of the discharge pipe 9 are connected to the first screen plate 5 and the second screen plate 6, and the front and rear sides of the right end are connected to the inner wall of the box body 1, so that the material in the second screening chamber is discharged through the discharge pipe 9.

[0020] A blower 11 is provided at the bottom right side of the dust collection box 7. The dust collection box 7 and the air inlet of the blower 11 are connected by a pipe, and a second filter screen 14 is provided at the connection. A dust discharge pipe 16 is connected to the bottom of the dust collection box 7. The bottom of the box body 1 is inclined to the lower left, and a slag discharge pipe 15 connected to the third screening chamber is provided at the bottom left side. A vibration motor 10 is provided on the outside of the box body 1. The output end of the vibration motor 10 is connected to the side wall of the box body 1 by a flexible coupling, and the outer shell of the vibration motor 10 is provided with a dustproof protective cover.

[0021] The outlets of the discharge pipe 9, slag discharge pipe 15 and dust discharge pipe 16 are all equipped with removable sealing caps, and the pipe bodies are all equipped with flow regulating valves. The bottom end of the dust discharge pipe 16 can be equipped with a dust collection bag connection interface.

[0022] Furthermore, the feed hopper 2 is equipped with a horizontally placed dispersing shaft 3, and multiple sets of dispersing plates 4 are evenly distributed on the dispersing shaft 3. A drive motor is provided on the side wall of the feed hopper 2, and the drive motor is used to control the rotation of the dispersing shaft 3.

[0023] Furthermore, a first filter screen 13 is provided at the bottom left side of the first screening chamber, and an air guide fan 12 is provided on the left side of the first filter screen 13. The air guide fan 12 is fixed to the side wall of the box 1 by a bracket. The air outlet of the air guide fan 12 is connected to the interior of the first screening chamber to form airflow circulation and assist dust to enter the dust collection box 7.

[0024] Furthermore, multiple sets of baffles are provided at equal intervals above the second screen plate 6. The cross-section of the multiple sets of baffles is a semi-circular structure, which is used to slow down the downward speed of the material.

[0025] Furthermore, the front and rear sides of the housing 1 are provided with two sets of support seats 18, and each set of support seats 18 is provided with a leg 17 below it. The bottom of the leg 17 is connected to the bottom plate. Multiple sets of connecting springs 19 are provided between each set of support seats 18 and the leg 17. The connecting springs 19 are compression springs. Each set of connecting springs 19 is provided with a guide assembly inside. The guide assembly includes a guide rod fixed to the bottom of the support seat 18 and a guide sleeve fixed to the top of the leg 17. The guide rod is slidably inserted into the guide sleeve, and a grease layer is provided between the guide rod and the guide sleeve to prevent the spring from deviating.

[0026] Working principle of this utility model: 1. Bulk materials are fed into the feed inlet of the feed hopper 2. The drive motor drives the dispersing shaft 3 to rotate. The arc-shaped dispersing plate 4 on the dispersing shaft 3 impacts and disperses the clumps of materials. The dispersed materials slide down the inner wall of the feed hopper 2 into the first screening chamber. 2. After the vibration motor 10 starts, it drives the entire box 1 to vibrate. Under the action of vibration, the material in the first screening chamber slides along the first screen plate 5 that is tilted to the left, passes through the first screen plate 5 and enters the second screening chamber. The blower 11 works to create a negative pressure inside the dust collection box 7. The dust generated during the screening process enters the dust collection box 7 through the grid 8 under the action of negative pressure. Third, the material in the second screening chamber slides along the second screen plate 6. During the process, the semi-circular baffle slows down the material's downward speed, allowing the material to be fully screened. The material with smaller internal particle size passes through the second screen plate 6 and enters the third screening chamber, then slides along the inclined plate at the bottom of the box 1 into the slag discharge pipe 15 for discharge.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A bulk screening device for finished product storage, comprising a housing, characterized in that: The top right side of the box is connected to a feeding hopper. The inside of the box is provided with a first screening chamber, a second screening chamber and a third screening chamber from top to bottom. A dust collection box is provided on the right side of the first screening chamber, the second screening chamber and the third screening chamber. A grid is provided at the connection between the dust collection box and the first screening chamber. A first screen plate inclined to the lower left is provided between the first screening chamber and the second screening chamber, and a second screen plate inclined to the lower left is provided between the second screening chamber and the third screening chamber. The mesh size of the second screen plate is smaller than that of the first screen plate. The front and rear sides of the first screen plate and the second screen plate are connected to the inner wall of the box, and their right ends are connected to the left side wall of the dust collection box. The left side of the first sieve plate and the second sieve plate is provided with a discharge pipe that penetrates the box body. The upper and lower sides of the right end of the discharge pipe are connected to the first sieve plate and the second sieve plate, and the front and rear sides of the right end are connected to the inner wall of the box body. A blower is provided at the bottom right side of the dust collection box, and a dust discharge pipe is connected to the bottom of the dust collection box. The bottom of the box body is inclined to the lower left, and a slag discharge pipe connected to the third screening chamber is provided at the bottom left side. A vibration motor is provided on the outside of the box body.

2. The bulk screening device for finished product warehouses according to claim 1, characterized in that: The feed hopper is equipped with a horizontally placed dispersing shaft that rotates inside. Multiple sets of dispersing plates are evenly distributed on the dispersing shaft. A drive motor is provided on the side wall of the feed hopper, and the drive motor is used to control the rotation of the dispersing shaft.

3. The bulk screening device for finished product warehouses according to claim 1, characterized in that: A first filter screen is provided at the bottom left side of the first screening chamber, an air guide fan is provided to the left side of the first filter screen, and a second filter screen is provided at the connection between the dust collection box and the exhaust fan.

4. The bulk screening device for finished product warehouses according to claim 1, characterized in that: The second screen plate is provided with multiple sets of baffles at equal intervals above it, and the cross-section of the multiple sets of baffles is a semi-circular structure.

5. The bulk screening device for finished product storage according to claim 1, characterized in that: The box body is provided with two sets of support seats on the front and rear sides. Each set of support seats is provided with a leg underneath. Each set of support seats and the leg are provided with multiple sets of connecting springs.

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