Industrial waste crushing and screening device for building block production
By designing a screening device including an upper and lower stacking screen and a reciprocating adjustment mechanism, the problem of screening screens in the prior art is easily blocked, and efficient scrap material screening and precise particle separation are achieved.
Patent Information
- Application Number
- CN202421657722.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-12
AI Technical Summary
In the existing screening devices, the mesh of the screen mesh is easily blocked by the scrap material, resulting in a decrease in screening efficiency.
A screening device including a first screen and a second screen stacked up and down is designed. The first screen is equipped with screen grooves of different sizes, and the second screen is equipped with screen strips corresponding to the screen grooves one by one. The reciprocating adjustment mechanism can control the spacing between the two screens. When the two screens are in contact with each other, the screen groove is divided into two by the screen strips. After operating for a period of time, the reciprocating adjustment mechanism separates the two screens, and the screen grooves are separated from the screen strips, and the particles stuck therein fall.
It effectively avoids the problem of crushed materials blocking the mesh, improves screening efficiency, and maintains screening accuracy.
Smart Images
Figure CN222817326U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to screening equipment, in particular to an industrial waste crushing and screening device used for block production. Background Art
[0002] Concrete blocks are a new type of building material that uses construction solid waste and industrial waste as the main raw materials. They have the advantages of low price, high strength, and environmental protection. Construction solid waste and industrial waste need to be crushed or even ground multiple times before they can be used as raw materials for concrete blocks. In addition, the size of solid particles will affect the quality and performance of concrete blocks. Therefore, the solid fragments after the crushing process also need to go through a screening process. The fragments that meet the minimum size requirements are screened out and sent to the subsequent production process, and the fragments that do not meet the requirements are sent back to the crushing process for re-crushing.
[0003] The existing screening device generally includes a vibration frame, a vibration component, and a screen set obliquely on the vibration frame. The crushed materials fall from the discharge port to the front end of the screen. Since the screen is set obliquely and under the action of the vibration component, the screen will vibrate synchronously with the crushed materials, so that the crushed materials will slowly roll down. The mesh on the screen is set to gradually become larger. Therefore, during the rolling process, small-sized crushed materials will fall first, and large-sized crushed materials will fall last. Through this principle, the crushed materials can be screened. However, during the screening process, it is easy for the crushed materials to block the mesh, which will seriously affect the screening efficiency of the screen over time. Summary of the invention
[0004] The utility model provides an industrial waste crushing and screening device for block production, which solves the problem in the prior art that the mesh of the screening device is easily blocked by crushed materials.
[0005] The above technical problems of the utility model are mainly solved by the following technical solutions: an industrial waste crushing and screening device for block production, comprising a vibration frame, a vibration assembly arranged on the vibration frame, and a screen arranged obliquely on the vibration frame, the screen comprising a first screen, a second screen and a reciprocating adjustment mechanism stacked up and down, a first support frame is arranged on the periphery of the first screen, the first screen is provided with a first screening area, a second screening area and a third screening area in sequence from front to back, a plurality of first strip-shaped screening slots are arranged in the first screening area, a plurality of second strip-shaped screening slots are arranged in the second screening area, a plurality of third strip-shaped screening slots are arranged in the third screening area, and the width of the screening slots is arranged to be gradually widened; a second support frame is arranged on the periphery of the second screen, the The second screen is provided with a fourth screening area opposite to the first screening area, a fifth screening area opposite to the second screening area and a sixth screening area opposite to the third screening area. The fourth screening area is provided with a plurality of first screen bars, the fifth screening area is provided with a plurality of second screen bars, and the sixth screening area is provided with a plurality of third screen bars. The second support frame is located at the lower side of the first support frame, and slides up and down relative to the first support frame. In the vertical projection direction, any screen slot is divided into two by its corresponding screen bar. The reciprocating adjustment mechanism can control the relative distance between the second support frame and the first support frame. A first material receiving hopper, a second material receiving hopper and a third material receiving hopper are provided correspondingly below the first screening area, the second screening area and the third screening area.
[0006] Furthermore, the distribution lengths of the first screening area, the second screening area and the third screening area are shortened step by step. The first screening area has the smallest screening size, but the number of solid particles is the largest, so a long distance is required to ensure sufficient screening and ensure that all small particle debris can be screened away by the first screening area.
[0007] Furthermore, the length distribution direction of any sieve slot is consistent with the length direction of the first sieve.
[0008] Furthermore, when the second support frame is in contact with the first support frame, the top surface of any screen bar is arranged coplanar with the upper surface of the first screen.
[0009] Therefore, compared with the prior art, the utility model has the following characteristics: 1. The screen of the utility model comprises a first screen and a second screen stacked up and down, the first screen is provided with screen slots of different sizes, the second screen is provided with screen bars corresponding to the screen slots one by one, the reciprocating adjustment mechanism can control the spacing between the first screen and the second screen, when the two screens are in contact with each other, the screen slot is divided into two by the screen bar, after the screen operates for a period of time, the reciprocating adjustment mechanism will repeatedly separate the two screens from each other and then re-fit them together, in the separated state, the screen slot is separated from the screen bar, and the particles stuck between the screen slot and the screen bar will fall, the size of these particles is slightly larger than the screening size of the corresponding screening area, but due to the small number, it will not particularly affect the screening accuracy; 2. When the two support frames are fitted, the top surface of any screen bar is coplanar with the upper surface of the first screen, so that the upper surface flatness of the first screen is better, and the screen slot is not easily blocked by debris. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Attached Figure 1 It is a schematic diagram of the structure of the screen;
[0011] Attached Figure 2 It is a schematic diagram of the structure after the screen is decomposed;
[0012] Attached Figure 3 It is a schematic diagram of the structure when the screens in the utility model are combined;
[0013] Attached Figure 4 It is a schematic diagram of the structure when the screens in the utility model are separated;
[0014] Attached Figure 5 It is a simplified structural diagram of the screen and the receiving hopper. DETAILED DESCRIPTION
[0015] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.
[0016] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0017] Example 1: See Figure 1 , Figure 2 , Figure 3 and Figure 4, an industrial waste crushing and screening device for block production, comprising a vibration frame 100, a vibration assembly 200 arranged on the vibration frame, and a screen 300 inclined on the vibration frame, the screen comprising a first screen 310, a second screen 320 and a reciprocating adjustment mechanism 330 stacked up and down, a first support frame 311 is arranged on the periphery of the first screen, and the first screen is provided with a first screening area 10, a second screening area 20 and a third screening area 30 in sequence from front to back, a plurality of first strip-shaped screening slots 312 are arranged in the first screening area, a plurality of second strip-shaped screening slots 313 are arranged in the second screening area, and a plurality of third strip-shaped screening slots 314 are arranged in the third screening area, and the width of the screening slots is gradually widened; a second support frame 321 is arranged on the periphery of the second screen, and a first screening area 10, a second screening area 20 and a third screening area 30 are arranged on the first screening area in sequence from front to back. There is a fourth screening area 40 directly opposite to the first screening area, a fifth screening area 50 directly opposite to the second screening area, and a sixth screening area 60 directly opposite to the third screening area. The fourth screening area is provided with a plurality of first screen bars 322, the fifth screening area is provided with a plurality of second screen bars 323, and the sixth screening area is provided with a plurality of third screen bars 324; the second support frame is located at the lower side of the first support frame, and slides up and down relative to the first support frame. In the vertical projection direction, any screen slot is divided into two by its corresponding screen bar; the reciprocating adjustment mechanism can control the relative distance between the second support frame and the first support frame; the first receiving hopper 401, the second receiving hopper 402 and the third receiving hopper 403 are provided correspondingly below the first screening area, the second screening area and the third screening area (see Figure 5 ), a conveyor belt can be configured at the discharge port of each receiving hopper to transport particles.
[0018] See Figure 1 The distribution lengths of the first screening area, the second screening area and the third screening area are shortened step by step.
[0019] See Figure 1 , the length distribution direction of any sieve slot is consistent with the length direction of the first sieve.
[0020] See Figure 1 and Figure 3 When the second support frame is in contact with the first support frame, the top surface of any screen bar is coplanar with the upper surface of the first screen.
[0021] See Figure 1 A baffle 315 is provided on the first support frame except for the bottom side.
[0022] See Figure 3 and Figure 4 , also includes a support frame 500, the vibration frame is installed on the upper side of the support frame, and a plurality of springs 600 are connected between the two.
[0023] See Figure 3 and Figure 4The reciprocating adjustment mechanism includes four servo slides 331 vertically fixedly installed on the vibration frame in a matrix shape and a lifting frame 332 fixedly installed at the bottom of the second support frame. The lifting frame is fixedly connected to the moving ends of the four servo slides.
[0024] It is obvious to those skilled in the art that the utility model can be changed in many ways, and such changes are not considered to be out of the scope of the utility model. All such modifications obvious to those skilled in the art will be included in the scope of the claims.
Claims
1. An industrial waste crushing and screening device for block production, comprising a vibration frame, a vibration assembly arranged on the vibration frame, and a screen arranged obliquely on the vibration frame, characterized in that: The screen comprises a first screen, a second screen and a reciprocating adjustment mechanism stacked up and down, a first support frame is arranged on the periphery of the first screen, and the first screen is provided with a first screening area, a second screening area and a third screening area in sequence from front to back, a plurality of first screening slots in strip shape are arranged in the first screening area, a plurality of second screening slots in strip shape are arranged in the second screening area, a plurality of third screening slots in strip shape are arranged in the third screening area, and the width of the screening slots is gradually widened; a second support frame is arranged on the periphery of the second screen, and a fourth screening area opposite to the first screening area, a fifth screening area opposite to the second screening area and a fifth screening area opposite to the third screening area are arranged on the second screen. Opposite the sixth screening area, the fourth screening area is provided with a plurality of first screen bars, the fifth screening area is provided with a plurality of second screen bars, and the sixth screening area is provided with a plurality of third screen bars; the second support frame is located at the lower side of the first support frame, and slides up and down relative to the first support frame, and in the vertical projection direction, any screen slot is divided into two by its corresponding screen bar; the reciprocating adjustment mechanism can control the relative distance between the second support frame and the first support frame; a first material receiving hopper, a second material receiving hopper and a third material receiving hopper are correspondingly provided directly below the first screening area, the second screening area and the third screening area.
2. The industrial waste crushing and screening device for block production according to claim 1 is characterized in that: The distribution lengths of the first screening area, the second screening area and the third screening area are shortened step by step.
3. The industrial waste crushing and screening device for block production according to claim 2 is characterized in that: The length distribution direction of any sieve slot is consistent with the length direction of the first sieve.
4. The industrial waste crushing and screening device for block production according to claim 1 is characterized in that: When the second support frame is in contact with the first support frame, the top surface of any screen bar is coplanar with the upper surface of the first screen.
5. The industrial waste crushing and screening device for block production according to claim 4 is characterized in that: The first supporting frame is provided with baffles except for one side at the bottom.
6. The industrial waste crushing and screening device for block production according to claim 1 is characterized in that: A support frame is also included, and the vibration frame is installed on the upper side of the support frame, and a plurality of springs are connected between the two.
7. The industrial waste crushing and screening device for block production according to claim 1 is characterized in that: The reciprocating adjustment mechanism includes four servo slides vertically fixedly installed on the vibration frame in a matrix shape and a lifting frame fixedly installed at the bottom of the second support frame, and the lifting frame is fixedly connected to the moving ends of the four servo slides.