Sand screening device for concrete processing

By introducing a heater and fan system into the sand screening equipment, combined with a motor-driven vibrating screen plate, the clogging problem caused by damp sand was solved, achieving sand drying and efficient screening, thus improving concrete quality.

CN224525272UActive Publication Date: 2026-07-21SHENZHEN HUIJI CONCRETE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN HUIJI CONCRETE CO LTD
Filing Date
2025-08-19
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing sand screening equipment lacks a drying function during use, causing the sand to carry moisture, which easily leads to clogging and affects the screening effect.

Method used

The sand is dried using a heater and fan system. Heat is generated by heating wires and heating tubes, and the fan blows the heated air onto the sand on the screen plate. The synchronous pulley drives the exhaust pipe to swing, expanding the coverage of the hot air. The screen plate vibrates and is then screened by a motor.

Benefits of technology

It effectively removes moisture from sand, improves concrete quality, ensures the stability and efficiency of the sand screening process, and is suitable for sand screening operations in humid environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sieve sand equipment for concrete processing, including the bottom plate, the top fixedly connected with the frame of bottom plate, the outside fixedly installed with first motor of frame, the output fixedly connected with gear of first motor, the surface of gear is engaged to be connected with sieve plate, the top fixedly connected with heater of frame, the inner chamber fixedly connected with heating wire and heating pipe of heater, the top fixedly installed with fan of heater, the air inlet end fixedly connected with filter of fan through the pipeline. The utility model discloses through the heating wire and heating pipe in heater can produce heat, and the fan will filter the air of filter and inhale heater, and the air after heating is blown to the sand on sieve plate through exhaust pipe and exhaust hood, realizes the drying treatment to sand. This helps to remove the moisture in sand, improves the quality of concrete, especially suitable for sieve sand operation under the humid environment.
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Description

Technical Field

[0001] The utility model relates to the technical field of concrete processing, in particular to a sand screening device for concrete processing. Background Technique

[0002] Concrete, simply referred to as "砼 (tóng)", is a general term for engineering composite materials in which aggregate is cemented into a whole by cementitious materials. Usually, the term "concrete" refers to cement concrete made of cement as the cementitious material, sand and stone as the aggregate; mixed with water (which may contain admixtures and additives) in a certain proportion and stirred, also known as ordinary concrete, which is widely used in civil engineering. When processing concrete, a sand screening device is required to screen the sand; However, the existing sand screening devices do not have the function of drying during actual use, which will cause the sand to carry a part or a large amount of moisture, resulting in blockage of the sand screening device and unable to effectively screen. Therefore, we propose a sand screening device for concrete processing. Summary of the Invention

[0003] The purpose of the utility model is to provide a sand screening device for concrete processing to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: A sand screening device for concrete processing, including a bottom plate, the top of the bottom plate is fixedly connected with a frame, the outside of the frame is fixedly installed with a first motor through bolts, the output end of the first motor is fixedly connected with a gear, the surface of the gear is meshed with a sieve plate, the top of the frame is fixedly connected with a heater, the inner cavity of the heater is fixedly connected with heating wires and heating tubes, the top of the heater is fixedly installed with a blower, the air inlet end of the blower is fixedly connected with a filter through a pipeline, the air outlet end of the blower is communicated with the top of the heater, both sides of the heater are fixedly connected with exhaust pipes through pipelines, the bottom of the exhaust pipe is fixedly connected with an exhaust hood, the outside of the frame is fixedly installed with a second motor, and the output end of the second motor is provided with a synchronous pulley, and the inner surface of the synchronous pulley is drivingly connected with the surface of the exhaust pipe.

[0005] Preferably, a chute is opened at the top of the bottom plate, a slider is slidably connected in the inner cavity of the chute, the middle end of the top of the slider is fixedly connected with a sliding rod, and the top of the sliding rod is fixedly connected with the bottom of the sieve plate.

[0006] Preferably, a battery box is fixedly connected to the top of the frame, a storage battery is fixedly connected to the inner cavity of the battery box, a charging port is opened at the middle end of one side of the battery box, and the output end of the charging port is unidirectionally electrically connected to the input end of the storage battery.

[0007] Preferably, a fixing rod is fixedly connected to the middle of the top of the inner cavity of the frame, and a positioning plate is fixedly connected to the bottom of the fixing rod.

[0008] Preferably, support legs are fixedly connected to both the left and right sides of the bottom of the base plate, and anti-slip pads are provided on the bottom of the support legs.

[0009] Preferably, a PLC controller is fixedly mounted on the outside of the frame by bolts, and the output terminal of the PLC controller is unidirectionally electrically connected to the input terminals of the first motor, the fan, and the second motor.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This invention generates heat through heating wires and heating tubes within the heater. A fan draws filtered air into the heater, and the heated air is then blown onto the sand on the screen plate through an exhaust pipe and hood, thus drying the sand. This helps remove moisture from the sand, improving concrete quality, and is especially suitable for sand screening operations in humid environments. A second motor drives a synchronous pulley, which is connected to the exhaust pipe, allowing the exhaust pipe to swing appropriately, expanding the coverage of the hot air and ensuring more uniform sand drying.

[0011] 2. This utility model uses a first motor to drive a gear to rotate. The gear meshes with the screen plate, causing the screen plate to vibrate or move, thereby screening the sand. This mechanical transmission method improves the efficiency and accuracy of sand screening, ensuring effective separation of sand of different particle sizes. The sliding groove, slider, and slide rod on the top of the base plate cooperate to provide stable support and guidance for the movement of the screen plate, reducing the swaying and offset of the screen plate during movement and ensuring the stability of the sand screening process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the second motor structure of this utility model; Figure 3 This is a schematic diagram of the heating wire structure of this utility model.

[0013] In the diagram: 1. Base plate; 2. Frame; 3. Screen plate; 4. Synchronous pulley; 5. Exhaust pipe; 6. Battery box; 7. Storage battery; 8. Heater; 9. Fan; 10. Filter; 11. Gear; 12. First motor; 13. Charging port; 14. Second motor; 15. PLC controller; 16. Exhaust hood; 17. Fixing rod; 18. Positioning plate; 19. Heating wire; 20. Heating tube; 21. Slide rod; 22. Slider; 23. Slide groove. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] The components of this application, including 1. base plate; 2. frame; 3. sieve plate; 4. synchronous pulley; 5. exhaust pipe; 6. battery box; 7. storage battery; 8. heater; 9. fan; 10. filter; 11. gear; 12. first motor; 13. charging port; 14. second motor; 15. PLC controller; 16. exhaust hood; 17. fixing rod; 18. positioning plate; 19. heating wire; 20. heating tube; 21. slide rod; 22. slider; and 23. slide groove, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Example 1

[0016] Please see Figures 1-3 The following technical solution is provided, specifically disclosing: a sand screening device for concrete processing, including a base plate 1, a frame 2 fixedly connected to the top of the base plate 1, a first motor 12 fixedly installed on the outside of the frame 2 by bolts, a gear 11 fixedly connected to the output end of the first motor 12, a screen plate 3 meshing with the surface of the gear 11, a heater 8 fixedly connected to the top of the frame 2, a heating wire 19 and a heating tube 20 fixedly connected to the inner cavity of the heater 8, a fan 9 fixedly installed on the top of the heater 8, a filter 10 fixedly connected to the air inlet end of the fan 9 through a pipe, an air outlet end of the fan 9 communicating with the top of the heater 8, exhaust pipes 5 fixedly connected to both sides of the heater 8 through pipes, an exhaust hood 16 fixedly connected to the bottom of the exhaust pipe 5, a second motor 14 fixedly installed on the outside of the frame 2, a synchronous wheel 4 provided at the output end of the second motor 14, and a transmission connection between the inner surface of the synchronous wheel 4 and the surface of the exhaust pipe 5; In practical use, heat is generated by the heating wire 19 and heating tube 20 inside the heater 8. The fan 9 draws air filtered by the filter 10 into the heater 8. The heated air is then blown onto the sand on the screen plate 3 through the exhaust pipe 5 and exhaust hood 16, thus drying the sand. This helps remove moisture from the sand, improving the quality of concrete, and is especially suitable for sand screening operations in humid environments. The second motor 14 drives the synchronous pulley 4 to rotate. The synchronous pulley 4 is connected to the exhaust pipe 5, allowing the exhaust pipe 5 to swing appropriately, expanding the coverage of the hot air and making the sand drying more uniform. Example 2

[0017] Please see Figure 1and Figure 2 The following technical solution is provided, specifically disclosed: A sliding groove 23 is provided on the top of the base plate 1, a slider 22 is slidably connected to the inner cavity of the sliding groove 23, a sliding rod 21 is fixedly connected to the middle of the top of the slider 22, the top of the sliding rod 21 is fixedly connected to the bottom of the sieve plate 3, a battery box 6 is fixedly connected to the top of the frame 2, a storage battery 7 is fixedly connected to the inner cavity of the battery box 6, a charging port 13 is provided on the middle of one side of the battery box 6, the output end of the charging port 13 is unidirectionally electrically connected to the input end of the storage battery 7, a fixing rod 17 is fixedly connected to the middle of the top of the inner cavity of the frame 2, a positioning plate 18 is fixedly connected to the bottom of the fixing rod 17, support legs are fixedly connected to both the left and right sides of the bottom of the base plate 1, and anti-slip pads are provided at the bottom of the support legs, and a PLC controller 15 is fixedly installed on the outer side of the frame 2 by bolts, the output end of the PLC controller 15 is unidirectionally electrically connected to the input end of the first motor 12, the fan 9 and the second motor 14; In actual use, the first motor 12 drives the gear 11 to rotate, and the gear 11 meshes with the screen plate 3, causing the screen plate 3 to vibrate or move, thereby screening the sand. This mechanical transmission method can improve the efficiency and accuracy of sand screening, ensuring the effective separation of sand of different particle sizes. The sliding groove 23, slider 22 and sliding rod 21 on the top of the base plate 1 cooperate to provide stable support and guidance for the movement of the screen plate 3, reduce the shaking and deviation of the screen plate 3 during the movement, and ensure the stability of the sand screening process.

[0018] During use: Charge the battery 7 in the battery box 6 through charging port 13 to ensure the sand screening equipment has sufficient power. Check the connections of all components of the equipment for proper functioning, such as the first motor 12, fan 9, and second motor 14. Prepare to supply power to the heating wire 19 and heating tube 20. The operator starts the first motor 12 through the PLC controller 15. The first motor 12 drives the gear 11 to rotate, and the gear 11 meshes with the screen plate 3, causing the screen plate 3 to vibrate or move under the cooperation of the slide groove 23, slider 22, and slide rod 21, thus beginning the screening of sand poured onto the screen plate 3. Sand of different particle sizes is separated under the action of the screen plate 3. Sand that meets the requirements falls through the screen holes, while larger particle sizes remain on the screen plate 3. When it is necessary to dry the sand, start the fan 9 and the second motor 14. The fan 9 draws outside air into the heater 8 through the filter 10, and the heating wire 19 and heating tube 20 heat the air. Heated air is blown onto the sand on the sieve plate 3 through the exhaust pipe 5 and the exhaust hood 16, achieving drying. The second motor 14 drives the synchronous pulley 4 to rotate, causing the exhaust pipe 5 to swing appropriately, expanding the coverage area of ​​the hot air. During the sand screening and drying process, the operator can observe the equipment's operation and the screening and drying effects of the sand, and adjust the operating parameters of the first motor 12, the fan 9, and the second motor 14 through the PLC controller 15. For example, if the sand screening efficiency is low, the speed of the first motor 12 can be appropriately increased; if the sand is not dried evenly, the speed of the second motor 14 can be adjusted to change the swing amplitude of the exhaust pipe 5. After the sand screening and drying work is completed, the operator sequentially shuts down the first motor 12, the fan 9, and the second motor 14 through the PLC controller 15.

[0019] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0020] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A sand screening device for concrete processing, comprising a base plate (1), characterized in that: A frame (2) is fixedly connected to the top of the base plate (1). A first motor (12) is fixedly installed on the outside of the frame (2) by bolts. A gear (11) is fixedly connected to the output end of the first motor (12). A screen plate (3) is meshed with the surface of the gear (11). A heater (8) is fixedly connected to the top of the frame (2). A heating wire (19) and a heating tube (20) are fixedly connected to the inner cavity of the heater (8). A fan (9) is fixedly installed on the top of the heater (8). A filter (10) is fixedly connected to the air inlet end of the fan (9) through a pipe. The air outlet end of the fan (9) is connected to the top of the heater (8). An exhaust pipe (5) is fixedly connected to both sides of the heater (8) through a pipe. An exhaust hood (16) is fixedly connected to the bottom of the exhaust pipe (5). A second motor (14) is fixedly installed on the outside of the frame (2). A synchronous wheel (4) is provided at the output end of the second motor (14). The inner surface of the synchronous wheel (4) is connected to the surface of the exhaust pipe (5) in a transmission connection.

2. The sand screening equipment for concrete processing according to claim 1, characterized in that: The top of the base plate (1) is provided with a sliding groove (23), and a slider (22) is slidably connected to the inner cavity of the sliding groove (23). A sliding rod (21) is fixedly connected to the middle of the top of the slider (22), and the top of the sliding rod (21) is fixedly connected to the bottom of the sieve plate (3).

3. The sand screening equipment for concrete processing according to claim 1, characterized in that: A battery box (6) is fixedly connected to the top of the frame (2), and a storage battery (7) is fixedly connected to the inner cavity of the battery box (6). A charging port (13) is provided at the middle of one side of the battery box (6), and the output end of the charging port (13) is unidirectionally electrically connected to the input end of the storage battery (7).

4. The sand screening equipment for concrete processing according to claim 1, characterized in that: A fixing rod (17) is fixedly connected to the middle of the top of the inner cavity of the frame (2), and a positioning plate (18) is fixedly connected to the bottom of the fixing rod (17).

5. A sand screening device for concrete processing according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly connected to the left and right sides, and the bottom of the support legs is provided with anti-slip pads.

6. A sand screening device for concrete processing according to claim 1, characterized in that: A PLC controller (15) is fixedly installed on the outside of the frame (2) by bolts. The output terminal of the PLC controller (15) is unidirectionally electrically connected to the input terminals of the first motor (12), the fan (9), and the second motor (14).