Sand screening equipment for engineering

Abstract

The utility model relates to the technical field of sand screening machines, in particular to sand screening equipment for engineering. Comprising a rack, a roller screen drum is arranged on the rack, a plurality of push blocks are arranged at the two ends of the roller screen drum respectively, and a supporting frame is arranged in the area above the roller screen drum; the upper portion of the transverse plate is in sliding connection with the supporting frame, contact parts connected with the push blocks are arranged on the two sides of the transverse plate, and a plurality of impact assemblies are arranged on the transverse plate; in the rotating process of the roller screen drum, the impact assembly is intermittently driven to collide with the net body, so that sand adhered to the net body is knocked off, shutdown operation is not needed, and normal production is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of sand screening machines, in particular to a sand screening device for engineering. Background Art

[0002] Sand screening machine is a commonly used sand screening equipment in engineering projects. It performs secondary filtration on the transported sand raw materials to meet the requirements for mixing with cement. At present, the commonly used sand screening machine is drum type, which relies on the rotation of the roller screen drum to complete the separation of sand and stone. However, in the actual sand screening process, due to the humidity problem of the sand itself, it often adheres to the roller screen drum during screening, thereby clogging the holes and affecting the screening efficiency. This often requires shutdown maintenance and manual cleaning operations, which affects processing and production, reduces production efficiency, and is not conducive to use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a sand screening equipment for engineering use in view of the above-mentioned technical deficiencies. During the rotation of the roller screen drum, the impact component is intermittently driven to collide with the mesh body, thereby knocking off the sand adhering to the mesh body, without stopping the operation, effectively ensuring normal production.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model includes:

[0005] A frame, wherein a rolling screen drum is arranged on the frame, a plurality of push blocks are arranged at both ends of the rolling screen drum, and a support frame is arranged in the upper area of ​​the rolling screen drum;

[0006] A horizontal plate is slidably connected to the support frame at its top, contact portions connected to the push blocks are arranged on both sides of the horizontal plate, and a plurality of impact components are arranged on the horizontal plate.

[0007] Preferably, sliding columns are symmetrically arranged above the transverse plate, and a first spring is sleeved on the sliding columns.

[0008] Preferably, a roller is provided at the contact portion.

[0009] Preferably, the impact assembly includes a fixed seat, a sleeve and an impact rod; the fixed seat is connected to the cross plate, and a mounting hole is provided in the middle of the fixed seat; the sleeve is connected to the mounting hole, and a second spring is provided inside the sleeve; the top of the impact rod is slidably connected to the sleeve and contacts the second spring.

[0010] Preferably, the end of the impact rod has a buffer layer.

[0011] Preferably, the inner wall of the mounting hole is processed with an internal thread, and the outer wall of the sleeve is processed with an external thread, and the two form a threaded connection.

[0012] Preferably, an air intake channel is provided at the center of the sleeve, and an exhaust pipe connected to the air intake channel is provided below the sleeve.

[0013] Preferably, an air chamber is provided above the support frame.

[0014] Preferably, a slide groove is provided in the middle of the transverse plate.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] 1. The push block on the roller screen cylinder pushes the cross plate to move upward, and after the contact part is separated from the push block, the impact assembly collides with the mesh surface of the roller screen cylinder, thereby knocking off the sand adhering to the mesh. No manual maintenance is required, and downtime is avoided. At the same time, the influence of mesh blockage on screening efficiency is effectively avoided;

[0017] 2. The sleeve and the impact rod are supported by a first spring. During the impact process, the first spring can be compressed to prevent the impact force of the impact rod on the net body from being too large, causing deformation of the net body;

[0018] 3. The fixed seat and the slide groove are connected by sliding, and the position of each impact component on the horizontal plate can be adjusted as needed, thereby adjusting the impact point, which is convenient for use;

[0019] 4. By installing an exhaust pipe and using the airflow to blow to the surface of the roller screen, the mesh holes of the screen can be cleaned to further avoid blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a sand screening equipment for engineering use;

[0021] Figure 2 It is a schematic diagram of the connection between the horizontal plate and the support frame;

[0022] Figure 3 It is a schematic diagram of the horizontal plate structure;

[0023] Figure 4 is a schematic diagram of the impact component structure;

[0024] Figure 5 It is a schematic diagram of the internal connection of the sleeve;

[0025] Figure 6 It is a schematic diagram of the fixed seat structure;

[0026] Figure 7 A schematic diagram of the rack structure.

[0027] In the figure: 1, frame; 2, cross plate; 3, impact assembly; 4, fixed seat; 5, sleeve; 6, impact rod; 101, rolling screen cylinder; 102, push block; 103, support frame; 104, air chamber; 201, contact part; 202, sliding column; 203, first spring; 204, roller; 205, slide groove; 401, mounting hole; 501, second spring; 502, intake channel; 503, exhaust pipe; 601, buffer layer. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0029] Specific implementation method 1: Combination Figure 1-7 As shown, a sand screening equipment for engineering use comprises: a frame 1, on which a rolling screen drum 101 is provided, and at both ends of the rolling screen drum 101, a plurality of push blocks 102 are respectively provided, and a support frame 103 is provided in the upper area of ​​the rolling screen drum 101; a cross plate 2, the upper part of the cross plate 2 is slidably connected to the support frame 103, and contact parts 201 connected to the push blocks 102 are provided on both sides of the cross plate 2, and a plurality of impact components 3 are provided on the cross plate 2;

[0030] When the rolling screen drum 101 is rotating, after the push block 102 is connected with the contact portion 201 of the horizontal plate 2, the horizontal plate 2 is pushed upward by the contact portion 201, and when the maximum stroke is reached, the push block 102 is disengaged from the contact portion 201, and under the action of gravity, the impact assembly 3 collides downward with the rolling screen drum 101, thereby knocking off the sand adhering to the mesh of the rolling screen drum 101, realizing automatic cleaning, and the arrangement of multiple push blocks 102 can realize intermittent knocking, which is more reasonable and reliable.

[0031] A preferred embodiment, in combination with Figure 2 and Figure 3 As shown, a slide column 202 is symmetrically arranged above the cross plate 2, and a first spring 203 is sleeved on the slide column 202; a through hole is provided above the support frame 103 to be sleeved with the slide column 202, and a sliding connection is formed after the slide column 202 is inserted, and when the push block 102 pushes the cross plate 2 to move upward, the first spring 203 is compressed, and after being released, the elastic force of the first spring 203 is used to increase the impact force generated by the impact assembly 3, thereby avoiding the problem of insufficient impact force caused by relying solely on gravity.

[0032] A preferred embodiment, in combination with Figure 3 As shown, a roller 204 is provided at the contact portion 201 , and the roller 204 forms a rolling connection with the push block 102 to reduce friction resistance.

[0033] A preferred embodiment, in combination with Figure 4 and Figure 5 As shown, the impact assembly 3 includes a fixed seat 4, a sleeve 5 and an impact rod 6; the fixed seat 4 is connected to the cross plate 2 by screws, and a mounting hole 401 is provided in the middle of the fixed seat 4; the sleeve 5 is welded to the mounting hole 401, and a second spring 501 is provided inside the sleeve 5; the impact rod 6 is slidably connected to the sleeve 5 at the top, and the upper end surface of the impact rod 6 is in contact with the second spring 501; at the moment when the impact rod 6 contacts the rolling screen cylinder 101, the reaction force of the impact rod 6 can compress the second spring 501, which can play a role in buffering and absorbing vibrations, avoid excessive force, and at the same time reduce the requirements for installation accuracy.

[0034] A preferred embodiment, in combination with Figure 4 As shown, the end of the impact rod 6 has a buffer layer 601, and the buffer layer 601 is made of rubber material to prevent the mesh from being deformed due to long-term impact. At the same time, the design of the buffer layer 601 can also reduce the wear on the mesh during the rotation of the rolling screen drum 101. The buffer layer 601 only needs to be replaced separately after it is worn.

[0035] A preferred embodiment, in combination with Figure 4-6 As shown, the inner wall of the mounting hole 401 is processed with an internal thread, and the outer wall of the sleeve 5 is processed with an external thread, and the two form a threaded connection. By rotating the sleeve 5, the relative position of the impact rod 6 can be adjusted, which is convenient for installation and adjustment, and ensures that the end of the impact rod 6 can contact the surface of the rolling screen cylinder 101.

[0036] A preferred embodiment, in combination with Figure 4 and Figure 5 As shown, an air inlet channel 502 is provided at the center of the sleeve 5, and an exhaust pipe 503 connected to the air inlet channel 502 is provided below the sleeve 5. The air flow enters through the air inlet pipe 502 and is blown out by the exhaust pipe 503. The air flow can be used to clean the sand blocked in the mesh, further ensuring the screening efficiency of the mesh, avoiding the occurrence of blockage, and improving the stability of the equipment operation.

[0037] A preferred embodiment, in combination with Figure 1 and Figure 7 As shown, an air chamber 104 is provided above the support frame 103 , and the air chamber 104 is connected to the air supply equipment at the top. A plurality of air outlet pipes are distributed on one side, and the air outlet pipes are connected to the top of the air inlet channel 502 through rubber pipes to realize the air supply operation to the air inlet channel 502 .

[0038] A preferred embodiment, in combination with Figure 3 and Figure 6As shown, a slide groove 205 is provided in the middle of the horizontal plate 2, and the fixed seat 4 is slidably connected with the slide groove 205. The position of the fixed seat 4 in the slide groove 205 can be adjusted as needed, thereby achieving the requirement of adjusting the impact point and adapting to different work needs. Specific implementation method 2

[0040] Combination Figure 2 , Figure 3 and Figure 4 As shown, in order to achieve the positioning of the fixed seat 4 after displacement adjustment, a slidable pressure plate is set at the rear of the cross plate 2. The pressure plate contacts the surface of the fixed seat 4 and the positioning of the fixed seat 4 is achieved by friction. The operation is simple and convenient. At the same time, multiple thrust screws are installed on the cross plate 2. By rotating the thrust screws, the pressure plate is pushed to move toward the fixed seat 4 and make contact, thereby achieving the clamping operation.

[0041] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A sand screening equipment for engineering, characterized in that: include: A frame (1), wherein a rolling screen drum (101) is provided on the frame (1), a plurality of push blocks (102) are respectively provided at both ends of the rolling screen drum (101), and a support frame (103) is provided in the upper area of ​​the rolling screen drum (101); A transverse plate (2), wherein the upper portion of the transverse plate (2) is slidably connected to a support frame (103), contact portions (201) connected to a push block (102) are provided on both sides of the transverse plate (2), and a plurality of impact assemblies (3) are provided on the transverse plate (2).

2. The engineering sand screening equipment according to claim 1, characterized in that: A sliding column (202) is symmetrically arranged above the transverse plate (2), and a first spring (203) is sleeved on the sliding column (202).

3. The engineering sand screening equipment according to claim 1, characterized in that: A roller (204) is provided at the contact portion (201).

4. The engineering sand screening equipment according to claim 1, characterized in that: The impact assembly (3) comprises a fixing seat (4), a sleeve (5) and an impact rod (6); the fixing seat (4) is connected to the transverse plate (2), and a mounting hole (401) is provided in the middle of the fixing seat (4); the sleeve (5) is connected to the mounting hole (401), and a second spring (501) is provided inside the sleeve (5); the impact rod (6) is slidably connected to the sleeve (5) at the top and contacts the second spring (501).

5. The engineering sand screening equipment according to claim 4 is characterized in that: The end of the impact rod (6) has a buffer layer (601).

6. The engineering sand screening equipment according to claim 4, characterized in that: The inner wall of the mounting hole (401) is processed with an internal thread, and the outer wall of the sleeve (5) is processed with an external thread, and the two form a threaded connection.

7. The engineering sand screening equipment according to claim 4, characterized in that: An air intake channel (502) is provided at the center of the sleeve (5), and an exhaust pipe (503) communicating with the air intake channel (502) is provided below the sleeve (5).

8. The engineering sand screening equipment according to claim 7, characterized in that: An air chamber (104) is provided above the support frame (103).

9. The engineering sand screening equipment according to claim 4, characterized in that: A sliding groove (205) is provided in the middle of the transverse plate (2).

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