A raw material screening device for tile production

Abstract

This invention discloses a raw material screening device for standard brick preparation, comprising a housing with multiple screening components inside. One side of the housing is open, and one end of each screening component extends out of the open side. A feed hopper is located at the top of the housing, and a discharge port is located at the bottom. Each screening component includes a screen plate, slide rails, and a servo motor. Two slide rails are rotatably connected to two opposite inner walls of the housing. The servo motor is fixed to the outer wall of the housing and drives one of the slide rails to rotate. The screen plate slides along the two slide rails. The screening component also includes a drive device for moving the screen plate along the two slide rails. The multiple screening components can be arranged in parallel to form a multi-stage screening structure, or oscillated to form a continuous single-stage screening structure. This invention solves the problems of traditional screening equipment, such as single mode, easy clogging, and difficult maintenance, achieving efficient and reliable raw material screening.

Description

Technical Field

[0001] This invention relates to the field of screening equipment technology, specifically to a raw material screening device for the preparation of standard bricks. Background Technology

[0002] In the production of building materials such as standard bricks, raw materials (such as clay, shale, coal gangue, and recycled aggregates from construction waste) typically undergo multiple processes including crushing, screening, mixing, aging, molding, and sintering. Among these, the screening process is crucial for ensuring uniform particle size, removal of impurities, and accurate proportioning of raw materials, directly affecting the quality of subsequent brick making and the strength, density, and appearance consistency of the finished bricks.

[0003] Currently, commonly used screening equipment in the industry mainly includes vibrating screens, drum screens, and fixed multi-layer screens. However, these traditional devices have many shortcomings in practical applications: 1. Limited Screening Mode: Most equipment only supports a fixed multi-stage screening structure and cannot dynamically adjust the screening path according to the particle size distribution of the raw materials. When processing raw materials with a wide or fluctuating particle size range, problems such as overloading and clogging of the upper screen and low utilization of the lower screen are likely to occur, resulting in a decrease in screening efficiency. 2. Low space utilization and bulky structure: To achieve multi-stage screening, traditional equipment often adopts a vertically stacked screen layout, which occupies a large amount of vertical space and is not conducive to deployment in brick-making workshops with limited space; at the same time, the screens are prone to clogging and difficult to clean, resulting in high maintenance costs; While some studies have attempted to introduce adjustable-angle screens or modular screen plates, their complex structures and inconvenient switching methods have not effectively resolved the contradiction between the continuity of the screening path and screen clogging prevention. Especially in standard brick production, where the grading accuracy requirements for 0-5mm fine particles and 5-15mm coarse particles are high, there is an urgent need for a flexible screening device that can achieve efficient multi-stage screening and, under specific operating conditions, switch to long-flow single-stage screening to enhance the separation capacity of fine materials. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a raw material screening device for standard brick preparation. It solves the problems of traditional screening equipment such as single mode, easy material blockage, and difficult maintenance, and realizes efficient and reliable raw material screening. It is particularly suitable for building material production scenarios such as standard brick preparation where the particle size of raw materials is strictly required, and can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a raw material screening device for standard brick preparation, comprising a box body, wherein multiple screening components are provided inside the box body, one side of the box body is open, one end of the multiple screening components extends out of the open body, a feed hopper is provided at the upper part of the box body, and a discharge port is provided at the lower part of the box body; the screening components include a screen plate, slide rails and a servo motor, two slide rails are rotatably connected to two opposite inner walls of the box body respectively, the servo motor is fixed to the outer wall of the box body and drives one of the slide rails to rotate, and the screen plate is slidably engaged with the two slide rails; the screening components also include a driving device for driving the screen plate to move along the two slide rails; the multiple screening components can be arranged in parallel to form a multi-stage screening structure, or the multiple screening components can be oscillated to form a continuous single-stage screening structure with their ends aligned.

[0006] Preferably, the driving device is an electric cylinder, with a fixed plate connecting the two slide rails. The electric cylinder is fixed on the fixed plate, and the telescopic end of the electric cylinder is connected to the end of the sieve plate through a connecting plate.

[0007] Preferably, the sieve plate is further provided with two baffles, which abut against the slide rail, and the slide rail has a groove adapted to the edge of the sieve plate.

[0008] Preferably, the sieve plate is slidably fitted with a sieve mesh, and the mesh aperture decreases sequentially from top to bottom according to the sieve grade.

[0009] Preferably, the lower part of the box is provided with a support, which is connected to the box by a spring.

[0010] Preferably, the lower part of the box has an inclined surface facing the discharge port, and a vibration motor is provided on the outer side of the box corresponding to the inclined surface.

[0011] Preferably, the servo motor is electrically connected to the control system, and the control system automatically adjusts the swing angle of the screening component and the travel of the screen plate according to the particle size distribution of the raw material to switch between multi-stage screening mode and single-stage screening mode.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. The servo motor drives the slide rail to rotate, and the drive device controls the screen plate to move along the slide rail, so that multiple screening components can freely switch between two modes: "parallel multi-stage screening" and "reverse continuous single-stage screening". For raw materials with different particle size distributions, the system can automatically select the optimal screening path, which significantly improves screening efficiency and adaptability. The screening mode is flexible and adjustable. 2. In single-stage screening mode, the screening components are connected end to end to form a folded continuous channel, which prolongs the residence time of materials on the screen. At the same time, combined with the synergistic effect of the inclined surface at the bottom of the box and the vibrating motor, it effectively promotes the passage of fine particles through the screen and accelerates the conveying of coarse materials to the discharge port, greatly reducing the risk of screen blockage. The screening efficiency is high and it is not easy to block. 3. The screen plate adopts a sliding snap-fit ​​screen design, which facilitates quick replacement of screens with different apertures to meet different process requirements; the end of the screen plate extends out of the housing, providing ample operating space for maintenance, cleaning or replacement without disassembling the whole machine, making the structure compact and easy to maintain. In summary, this invention solves the problems of traditional screening equipment, such as single mode, easy material blockage, and difficult maintenance, and achieves efficient and reliable raw material screening. It is particularly suitable for building material production scenarios with strict requirements on raw material particle size, such as the preparation of standard bricks. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a schematic diagram of the screening component structure of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the screening component structure of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the working state of another embodiment of the present invention.

[0014] In the diagram: 1. Box body, 1.1. Feed hopper, 1.2. Discharge port, 2. Screening assembly, 2.1. Screen plate, 2.1.1. Side guard, 2.2. Slide rail, 2.3. Servo motor, 2.4. Fixing plate, 2.5. Drive device, 2.6. Connecting plate, 3. Spring, 4. Bracket, 5. Vibration motor. Detailed Implementation

[0015] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation.

[0016] Please see Figure 1-6 The present invention provides the following technical solutions: Example 1: A raw material screening device for standard brick preparation includes a housing 1, with multiple screening components 2 inside the housing 1. One side of the housing 1 is open, and one end of each screening component 2 extends out of the open side. The upper part of the housing 1 has a feed hopper 1.1, and the lower part of the housing 1 has a discharge port 1.2. The screening component 2 includes a screen plate 2.1, a slide rail 2.2, and a servo motor 2.3. The two slide rails 2.2 are rotatably connected to two opposite inner walls of the housing 1, and the servo motor 2.3 is fixed to the outer wall of the housing 1 and drives one of the slide rails 2.2 to rotate. The screen plate 2.1 is slidably engaged with the two slide rails 2.2. The screening component 2 also includes a drive device 2.5 that drives the screen plate 2.1 to move along the two slide rails 2.2. The multiple screening components 2 can be arranged in parallel to form a multi-stage screening structure, or the multiple screening components 2 can be oscillated to form a continuous single-stage screening structure with their ends aligned. Understandably, the servo motor 2.3 drives the slide rail 2.2 to rotate, and the slide rail 2.2 drives the screen plate 2.1 to swing, allowing for angle adjustment of a certain screening component 2 and changing the tilt angle of the screen plate 2.1 to adapt to screening different materials. At the same time, the drive device 2.5 can move the screen plate 2.1 along the slide rail 2.2 for adjustment, automatically selecting the optimal screening path according to the particle size distribution of the raw material. The multi-stage mode is suitable for conventional grading, while the single-stage folding mode extends the material travel and improves the fine particle screening rate, making it particularly suitable for processing sticky or easily clogged materials. The spatial reconstruction of the screening component is achieved through the rotation of the slide rail 2.2 and the translation of the screen plate 2.1, allowing for function switching without replacing hardware, saving equipment investment. The end of the screen plate 2.1 has an open end, facilitating observation, cleaning, or replacement, improving operational safety and efficiency. Specifically, the drive device 2.5 is an electric cylinder, and a fixed plate 2.4 is connected between the two slide rails 2.2. The electric cylinder is fixed on the fixed plate 2.4. The telescopic end of the electric cylinder is connected to the end of the screen plate 2.1 through the connecting plate 2.6. The electric cylinder drives the screen plate 2.1 to move through the connecting plate 2.6.

[0017] Example 2: Unlike Example 1, the surface of the sieve plate 2.1 is also provided with two retaining edges 2.11. The retaining edges 2.11 correspond to and abut against the slide rail 2.2. The slide rail 2.2 has a sliding groove that matches the edge of the sieve plate 2.1. The retaining edges 2.11 and the sliding groove cooperate to form a guide and limiting structure to prevent the sieve plate 2.1 from shifting, getting stuck or falling off during swinging or vibration.

[0018] Example 3: Unlike Example 1, the sieve plate 2.1 is equipped with a sieve screen that slides. The aperture of the sieve screen decreases from top to bottom according to the number of sieve grades. The sieve screen can be disassembled and assembled without tools, which can adapt to the requirements of different raw material specifications. The decreasing aperture from top to bottom is the standard multi-stage sieve logic, which ensures that coarse particles are separated first and fine particles are screened step by step, avoiding waste and clogging caused by "sieving".

[0019] Example 4: Unlike Example 1, the lower part of the box 1 is provided with a support 4. The support 4 is connected to the box 1 by a spring 3. The spring 3 absorbs the energy generated by the vibration motor 5 and the screening impact, reducing the vibration transmitted to the ground and reducing equipment fatigue and noise pollution. The lower part of the box 1 has an inclined surface facing the discharge port 1.2. The outer side of the box 1 is provided with a vibration motor 5 corresponding to the inclined surface. The vibration motor 5 excites the material to "jump" forward on the screen, improving the screening probability, especially for wet or slightly sticky materials.

[0020] Example 5: Unlike Example 1, the servo motor 2.3 is electrically connected to the control system. The control system automatically adjusts the swing angle of the screening component 2 and the moving stroke of the screen plate 2.1 according to the particle size distribution of the raw material to switch between multi-stage screening mode and single-stage screening mode, realizing intelligent control without manual intervention. The system can dynamically optimize the screening strategy according to the characteristics of the incoming material (such as through sensors or preset parameters) to improve the level of automation.

[0021] The parts of this invention not described in detail are prior art. It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to encompass all changes falling within the meaning and scope of equivalents in the content of this invention.

Claims

1. A raw material screening device for preparing standard bricks, comprising a housing (1), characterized in that: The box (1) is equipped with multiple sets of screening components (2) inside. One side of the box (1) is open, and one end of each set of screening components (2) extends out of the open. The upper part of the box (1) is equipped with a feed hopper (1.1), and the lower part of the box (1) is equipped with a discharge port (1.2). The screening components (2) include a screen plate (2.1), a slide rail (2.2), and a servo motor (2.3). The two slide rails (2.2) are rotatably connected to the two opposite inner walls of the box (1), and the servo motor ( 2.3) Fixed to the outer wall of the box (1) and driving one of the slide rails (2.2) to rotate, the sieve plate (2.1) slides with the two slide rails (2.2); the screening assembly (2) also includes a driving device (2.5) for driving the sieve plate (2.1) to move along the two slide rails (2.2); multiple sets of the screening assemblies (2) can be arranged in parallel to form a multi-stage screening structure, or multiple sets of screening assemblies (2) can be oscillated to form a continuous single-stage screening structure with the ends of the sieve assemblies (2) corresponding to each other.

2. The raw material sieve separating device for preparing standard bricks according to claim 1, characterized in that: The driving device (2.5) is an electric cylinder. A fixed plate (2.4) is connected between the two slide rails (2.2). The electric cylinder is fixed on the fixed plate (2.4). The telescopic end of the electric cylinder is connected to the end of the sieve plate (2.1) through the connecting plate (2.6).

3. The raw material screening device for preparing standard bricks according to claim 1, characterized in that: The sieve plate (2.1) is also provided with two side plates (2.11), which abut against the slide rail (2.2). The slide rail (2.2) has a groove that matches the edge of the sieve plate (2.1).

4. The raw material screening device for preparing standard bricks according to claim 1, characterized in that: The sieve plate (2.1) is slidably fitted with a sieve mesh, and the mesh aperture decreases sequentially from top to bottom according to the sieve grade.

5. The raw material screening device for preparing standard bricks according to claim 1, characterized in that: The lower part of the box (1) is provided with a bracket (4), which is connected to the box (1) by a spring (3).

6. The raw material screening device for preparing standard bricks according to claim 1, characterized in that: The lower part of the box (1) has an inclined surface facing the discharge port (1.2), and a vibration motor (5) is provided on the outer side of the box (1) corresponding to the inclined surface.

7. The raw material screening device for preparing standard bricks according to claim 1, characterized in that: The servo motor (2.3) is electrically connected to the control system. The control system automatically adjusts the swing angle of the screening component (2) and the moving stroke of the screen plate (2.1) according to the particle size distribution of the raw material to switch between multi-stage screening mode and single-stage screening mode.

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