A powder sampling device in concrete production
By designing screening mechanisms, guiding mechanisms, and environmental protection measures, the problems of low powder screening efficiency and dust generation were solved, achieving efficient, stable, and environmentally friendly powder screening, and meeting the high-standard quality control requirements of concrete production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ZHONGJIU ENGINEERING RESEARCH CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-14
AI Technical Summary
In current concrete production, powder screening efficiency is low and clogging is common. Traditional equipment also generates dust, making it difficult to meet high-standard quality control requirements.
A powder sampling device including a screening mechanism, a feeding assembly, and a motor drive was designed. It adopts a guide mechanism of slide rail and sliding block, is equipped with a protective cover and heat dissipation trough, and is combined with an observation window and controller to achieve efficient screening, stable operation and environmentally friendly operation.
It improves screening efficiency, reduces equipment misalignment and motor overheating, ensures environmental friendliness and ease of operation, and provides reliable quality control support.
Smart Images
Figure CN224486722U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete production technology, and in particular to a powder sampling device in concrete production. Background Technology
[0002] In the concrete production process, the gradation, mud content, and impurity content of aggregates directly affect the strength, durability, and workability of concrete. To ensure that the concrete quality meets design requirements, aggregates need to be screened and analyzed to assess their particle size distribution and cleanliness.
[0003] Currently, screening is usually done manually or with traditional vibrating screen equipment. However, manual screening is inefficient and prone to errors, while traditional vibrating screen equipment has a complex structure and is difficult to achieve fast and accurate sampling and screening. Especially in continuous production processes, the convenience and accuracy of sampling and screening have become urgent problems to be solved.
[0004] Based on the aforementioned technologies, the applicant believes that although some equipment for screening powder and fine aggregates in the concrete production process has screening capabilities, the screening efficiency is low and it is prone to clogging, affecting the timeliness of production adjustments. In addition, traditional screening equipment is prone to generating dust during the screening process, polluting the environment and making it difficult to meet the high-standard quality control requirements of modern concrete production. In response to the above problems, we have launched a powder sampling device for concrete production. Utility Model Content
[0005] This utility model discloses a powder sampling device for concrete production, aiming to solve the technical problems of low screening efficiency, easy clogging, and affecting the timeliness of production adjustments. In addition, traditional screening equipment is prone to generating dust during the screening process, polluting the environment, and is difficult to meet the high-standard quality control requirements of modern concrete production.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A powder sampling device for concrete production includes a separation tank. A motor is fixedly connected to the outside of the separation tank. Support feet are fixedly connected in a rectangular array at the bottom of the separation tank. A screening mechanism is provided inside the separation tank. The screening mechanism includes a screening component and a feeding component, which cooperate with each other. The screening component includes a fixed plate, which is fixedly connected in a rectangular array to both sides of the inner wall of the separation tank. A slide rod is fixedly connected between two fixed plates on the same side. A screening frame is slidably connected to the outside of the slide rod. A spring is sleeved on the outside of the slide rod and above the screening frame. Rolling grooves are opened on both sides of the inside of the screening frame. Rollers are rotatably connected inside the two rolling grooves. A rotating shaft is rotatably connected inside the separation tank. Cams are symmetrically fixedly connected to the outside of the rotating shaft. One end of the rotating shaft is fixedly connected to the output end of the motor. Both cams cooperate with the rollers.
[0008] The screening mechanism achieves high-efficiency screening, stable operation, and easy operation, while also meeting environmental protection requirements to avoid dust generation. It provides reliable technical support for concrete quality control, has a simple structure, and is highly practical.
[0009] In a preferred embodiment, the feeding assembly includes a feeding hopper, which is fixedly connected to the outside of the separator, and a distribution plate is fixedly connected at equal intervals inside the feeding hopper. A discharge pipe is fixedly connected to the bottom of the separator.
[0010] The feeding assembly, through the cooperation of the feeding hopper and the distribution plate, achieves uniform material distribution, avoiding uneven screening caused by material accumulation. The discharge pipe facilitates rapid collection of screened material, improving work efficiency. This design is particularly suitable for continuous production environments.
[0011] In a preferred embodiment, the inner wall of the separating tank is symmetrically and fixedly connected with slide rails, and the outer sides of both slide rails are slidably connected with sliding blocks, which are fixedly connected to the screening frame.
[0012] The combination of slide rails and sliding blocks provides additional guiding support for the screening frame, enhancing the stability of equipment operation, reducing offset during vibration, and extending the service life of the equipment.
[0013] In a preferred embodiment, a protective cover is fixedly connected to the outside of the motor, and heat dissipation slots are equidistantly provided inside the protective cover.
[0014] The protective cover effectively protects the motor from dust contamination, and the heat dissipation slot design ensures good heat dissipation for the motor, solving the problem of motor overheating in traditional equipment and improving the reliability of equipment operation.
[0015] In a preferred embodiment, the front of the separation tank is provided with an observation window for observation.
[0016] The observation window facilitates real-time monitoring of the screening process. After screening is completed, operators can observe the inside of the separation tank to promptly identify and resolve problems, thereby improving the effectiveness of quality control.
[0017] In a preferred embodiment, a controller is fixedly connected to the front of the separation tank and below the observation window, and the motor is electrically connected to the controller.
[0018] The controller enables intelligent control of the motor, allowing operators to adjust screening parameters as needed, making the equipment adaptable to the screening requirements of different materials, and greatly improving the applicability and ease of operation of the equipment.
[0019] The powder sampling device for concrete production provided by this utility model has the following advantages:
[0020] Firstly, the screening mechanism enables efficient screening, stable operation, and easy operation. At the same time, it should meet environmental protection requirements to avoid dust generation, providing reliable technical support for concrete quality control. The structure is simple and highly practical.
[0021] Secondly, the cooperation of the slide rail and sliding block provides additional guiding support for the screening frame, enhancing the stability of equipment operation, reducing deviation during vibration, and extending the service life of the equipment. The protective cover effectively protects the motor from dust contamination, and the heat dissipation groove design ensures good motor heat dissipation, solving the problem of motor overheating in traditional equipment and improving the reliability of equipment operation. The observation window facilitates real-time monitoring of the screening process. After screening, operators can observe the inside of the separation tank to promptly identify and resolve problems, improving the effectiveness of quality control. The controller enables intelligent control of the motor, allowing operators to adjust screening parameters as needed, adapting the equipment to the screening requirements of different materials, significantly improving the applicability and ease of operation of the equipment. Attached Figure Description
[0022] Figure 1 This is a three-dimensional front view schematic diagram of a powder sampling device for concrete production proposed in this utility model.
[0023] Figure 2 This is a three-dimensional rear view schematic diagram of a powder sampling device for concrete production proposed in this utility model.
[0024] Figure 3 This is a three-dimensional cross-sectional schematic diagram of a powder sampling device for concrete production proposed in this utility model.
[0025] Figure 4This is a three-dimensional schematic diagram of the screening mechanism of a powder sampling device in concrete production proposed in this utility model.
[0026] Figure 5 This is a three-dimensional cross-sectional view of the separation tank of a powder sampling device in concrete production proposed in this utility model.
[0027] In the attached diagram: 1. Separation tank; 2. Motor; 31. Fixing plate; 32. Slide rod; 33. Spring; 34. Rotating shaft; 35. Cam; 36. Rolling trough; 37. Roller; 38. Screening frame; 4. Feed hopper; 5. Distributing plate; 6. Discharge pipe; 7. Slide rail; 8. Sliding block; 9. Support foot; 10. Protective cover; 11. Heat dissipation trough; 12. Observation window; 13. Controller. Detailed Implementation
[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0029] The powder sampling device disclosed in this utility model is mainly used in concrete production scenarios.
[0030] Reference Figures 1-5A powder sampling device for concrete production includes a separation tank 1. A motor 2 is fixedly connected to the outside of the separation tank 1. Support feet 9 are fixedly connected in a rectangular array at the bottom of the separation tank 1. A screening mechanism is provided inside the separation tank 1. The screening mechanism includes a screening component and a feeding component, which cooperate with each other. The screening component includes a fixed plate 31, which is fixedly connected in a rectangular array to both sides of the inner wall of the separation tank 1. A slide rod 32 is fixedly connected between two fixed plates 31 on the same side. A screening frame 38 is slidably connected to the outside of the slide rod 32. A spring 33 is sleeved on the outside of the slide rod 32 and above the screening frame 38. Rolling grooves 36 are opened on both sides of the inside of the screening frame 38. Rollers 37 are rotatably connected inside the two rolling grooves 36. A rotating shaft 34 is rotatably connected inside the separation tank 1. Cams 35 are symmetrically fixedly connected to the outside of the rotating shaft 34. One end of the rotating shaft 34 is fixedly connected to the output end of the motor 2. Both cams 35 cooperate with the rollers 37. The feeding assembly includes a feeding hopper 4, which is fixedly connected to the outside of the separation tank 1. The feeding hopper 4 is fixedly connected to a distribution plate 5 at equal intervals inside the feeding hopper 4, and the bottom of the separation tank 1 is fixedly connected to a discharge pipe 6.
[0031] In this embodiment: the material first enters the separation tank 1 evenly through the feed hopper 4. The distribution plate 5 evenly disperses the material onto the screen surface of the screening frame 38. After the motor 2 starts, it drives the rotating shaft 34 to rotate. The cam 35 fixed on the rotating shaft 34 rotates accordingly. Through contact and cooperation with the roller 37, it pushes the screening frame 38 to move up and down along the slide rod 32. During the movement, the spring 33 provides elastic restoring force to ensure that the movement of the screening frame 38 is smooth and regular. The screening frame 38 generates high-frequency vibration under the drive of the cam 35, so that the material is fully dispersed on the screen surface and falls through the screen holes to achieve accurate grading. At the same time, the auxiliary guiding mechanism composed of the slide rail 7 and the sliding block 8 further ensures the movement stability of the screening frame 38 and prevents deviation. Through the screening mechanism, the characteristics of high-efficiency screening, stable operation, and simple operation are achieved. At the same time, it should also meet environmental protection requirements to avoid dust generation, providing reliable technical support for concrete quality control. The structure is simple and highly practical.
[0032] The above technical solution addresses the issues of low screening efficiency, easy clogging, and impeded timeliness of production adjustments. Furthermore, traditional screening equipment generates dust during the screening process, polluting the environment and failing to meet the high-standard quality control requirements of modern concrete production. To resolve these problems, the specific operation is as follows:
[0033] Reference Figures 1-5In a preferred embodiment, slide rails 7 are symmetrically fixedly connected to the inner wall of the separating tank 1, and sliding blocks 8 are slidably connected to the outer sides of both slide rails 7. The sliding blocks 8 are fixedly connected to the screening frame 38. A protective cover 10 is fixedly connected to the outer side of the motor 2, and heat dissipation grooves 11 are equidistantly opened inside the protective cover 10. An observation window 12 for observation is provided on the front of the separating tank 1. A controller 13 is fixedly connected to the front of the separating tank 1 and below the observation window 12, and the motor 2 is electrically connected to the controller 13.
[0034] In this embodiment, the cooperation of the slide rail 7 and the sliding block 8 provides additional guiding support for the screening frame 38, enhancing the stability of equipment operation, reducing offset during vibration, and extending the service life of the equipment. The protective cover 10 effectively protects the motor 2 from dust contamination, and the design of the heat dissipation groove 11 ensures good heat dissipation for the motor 2, solving the problem of overheating of the motor 2 in traditional equipment and improving the reliability of equipment operation. The observation window 12 facilitates real-time monitoring of the screening process. After screening, the operator can observe the inside of the separation tank 1 to promptly identify and resolve problems, improving the effectiveness of quality control. The controller 13 realizes intelligent control of the motor 2. The operator can adjust the screening parameters as needed to adapt the equipment to the screening requirements of different materials, greatly improving the applicability and ease of operation of the equipment.
[0035] Working principle: The material first enters the separator 1 evenly through the feed hopper 4. The distribution plate 5 evenly disperses the material onto the screen surface of the screening frame 38. After the motor 2 starts, it drives the rotating shaft 34 to rotate. The cam 35 fixed on the rotating shaft 34 rotates accordingly. Through contact with the roller 37, it pushes the screening frame 38 to move up and down along the slide bar 32. During the movement, the spring 33 provides elastic restoring force to ensure that the movement of the screening frame 38 is smooth and regular. The screening frame 38 generates high-frequency vibration under the drive of the cam 35, which makes the material fully dispersed on the screen surface and fall through the screen holes, achieving precise material distribution. In addition to grading, the auxiliary guiding mechanism composed of slide rail 7 and sliding block 8 further ensures the movement stability of screening frame 38 and prevents deviation. During the screening process, the operator can monitor the screening status in real time through observation window 12 and adjust the speed of motor 2 through controller 13 to change the screening intensity. Fine materials that meet the requirements fall into the bottom of separation tank 1 through the screen and are finally discharged and collected through discharge pipe 6, while coarse materials remain in screening frame 38 for further processing. Protective cover 10 effectively blocks dust from entering motor 2, and heat dissipation slot 11 ensures good heat dissipation of motor 2. The whole system realizes efficient, accurate and controllable screening operation.
[0036] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.
Claims
1. A powder sampling device for concrete production, comprising a separation tank (1), characterized in that: A motor (2) is fixedly connected to the outside of the separation tank (1), and a support foot (9) is fixedly connected to the bottom of the separation tank (1) in a rectangular array. A screening mechanism is provided inside the separation tank (1), which includes a screening component and a feeding component. The screening component and the feeding component are used in cooperation with each other. The screening assembly includes a fixed plate (31), which is fixedly connected in a rectangular array to both sides of the inner wall of the separation tank (1). A slide rod (32) is fixedly connected between the two fixed plates (31) on the same side. A screening frame (38) is slidably connected to the outside of the slide rod (32). A spring (33) is sleeved on the outside of the slide rod (32) and above the screening frame (38). Rolling grooves (36) are opened on both sides of the inside of the screening frame (38). Rollers (37) are rotatably connected inside the two rolling grooves (36). A rotating shaft (34) is rotatably connected inside the separation tank (1). Cams (35) are symmetrically fixedly connected to the outside of the rotating shaft (34). One end of the rotating shaft (34) is fixedly connected to the output end of the motor (2). Both cams (35) are used in cooperation with the rollers (37).
2. The powder sampling device for concrete production according to claim 1, characterized in that: The feeding assembly includes a feeding hopper (4), which is fixedly connected to the outside of the separation tank (1). The feeding hopper (4) is fixedly connected to a distribution plate (5) at equal intervals inside the feeding hopper (4), and the bottom of the separation tank (1) is fixedly connected to a discharge pipe (6).
3. The powder sampling device for concrete production according to claim 1, characterized in that: The inner wall of the separation tank (1) is symmetrically and fixedly connected with slide rails (7), and the outer sides of the two slide rails (7) are slidably connected with sliding blocks (8), and the sliding blocks (8) and the screening frame (38) are fixedly connected.
4. The powder sampling device for concrete production according to claim 1, characterized in that: A protective cover (10) is fixedly connected to the outside of the motor (2), and heat dissipation slots (11) are provided at equal intervals inside the protective cover (10).
5. A powder sampling device for concrete production according to claim 1, characterized in that: The front of the separation tank (1) is provided with an observation window (12) for observation.
6. The powder sampling device for concrete production according to claim 1, characterized in that: A controller (13) is fixedly connected to the front of the separation tank (1) and below the observation window (12), and the motor (2) is electrically connected to the controller (13).