Air-entraining furnace slag machine-made sand for concrete production
By performing multi-stage screening and water washing on gasification slag, the problems of unreasonable particle size distribution and high mud content in traditional manufactured sand have been solved, resulting in high-quality manufactured sand with gasification slag admixture suitable for concrete production, which improves the strength and durability of concrete.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANGYUAN COUNTY KUNYUAN COMMERCIAL CONCRETE CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional manufactured sand suffers from problems such as unreasonable particle size distribution and high mud content, which affect the strength and durability of concrete. Gasification slag, as an industrial by-product, contains large particles and impurities and has not been effectively utilized.
A combination of equipment, including a washing tank, vibrating screen, moving components, screen mesh, and mixing components, is used to perform preliminary screening, washing, re-screening, and mixing of gasification slag, remove impurities, and adjust particle size to form manufactured sand with gasification slag that meets the requirements of concrete production.
Through multi-stage screening and water washing, large particles, impurities, and soluble substances in the gasification slag are removed, ensuring that the particle size of the manufactured sand meets the requirements and improving the quality and performance of the concrete.
Smart Images

Figure CN224443768U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of manufactured sand technology, specifically to manufactured sand with aerated slag used in concrete production. Background Technology
[0002] In today's rapidly developing construction industry, concrete, as a key building material, directly affects the safety and durability of buildings. Manufactured sand, as an important component of concrete, has a significant impact on its performance.
[0003] Traditional manufactured sand suffers from problems such as unreasonable particle size distribution and high mud content, which affect the strength and durability of concrete. Gasification slag, as an industrial byproduct, contains larger particles and impurities, but with proper treatment, it can be used as a potential resource in concrete production, turning waste into treasure.
[0004] Therefore, a manufactured sand incorporating aerated slag for concrete production is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide manufactured sand with aerated slag for concrete production, in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0007] The machine sand made from aerated slag for concrete production includes a frame, a washing tank inside the frame for washing the slag with water, a vibrating screen on the frame for preliminary screening of the slag, a moving component on the frame with a wire basket connected to the end of the moving component, and a screen inside the frame for secondary screening of the washed slag.
[0008] Furthermore, a conveying device is provided inside the frame and at the discharge end of the screen for conveying slag, and visual inspection devices are provided on both sides of the conveying device for detecting the particle size of the slag. A mixing and stirring assembly is provided inside the frame and at the discharge end of the conveying device for mechanically mixing the water-washed and screened gasification slag with a specific particle size.
[0009] Furthermore, the washing tank includes a water tank fixedly installed in the frame, and several sets of water pipes are fixedly installed on the inner wall of the water tank, with nozzles evenly spaced on each water pipe, and the input end of each nozzle is connected to a connecting pipe.
[0010] Furthermore, the moving component includes an electric push rod fixedly installed on the top surface of the frame, a connecting seat fixedly installed at the end of the electric push rod, a connecting frame rotatably installed on the end face of the connecting seat, and a first motor fixedly installed on the surface of the connecting frame, with the output end of the first motor being fixedly inserted into the connecting seat.
[0011] Furthermore, the mixing assembly includes a mixing tank fixedly installed in the frame, a second motor fixedly installed on the bottom surface of the mixing tank, an agitator fixedly connected to the output end of the second motor through the mixing tank, and a discharge port provided on the bottom surface of the mixing tank.
[0012] Furthermore, during the slag washing process, a moving assembly places the mesh basket inside the water tank, with the discharge end of the vibrating screen positioned directly above the mesh basket.
[0013] The beneficial effects of this utility model are as follows:
[0014] The gasification slag is initially screened using a vibrating screen to remove larger particles and impurities. After screening, the slag enters a wire basket, which is then moved to the inside of a washing tank by a moving component. The slag is washed by water in the washing tank to remove fine particles, dust, and some soluble substances. The wire basket is then lifted by the moving component, and the washed slag is poured onto a screen. The washed slag is then screened a second time to further remove residual impurities and particles that do not meet the particle size requirements, ensuring that the final slag meets the particle size requirements for manufactured sand. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a front view of the present invention;
[0017] Figure 3 This is a partial schematic diagram of the present invention;
[0018] Figure 4 This is a schematic diagram of the water washing tank of this utility model;
[0019] Figure 5 This is a schematic diagram of the mixing and stirring assembly of this utility model;
[0020] Reference numerals: 1. Frame; 2. Washing tank; 201. Water tank; 202. Water pipe; 203. Nozzle; 204. Connecting pipe; 3. Vibrating screen; 4. Moving component; 401. Electric push rod; 402. Connecting seat; 403. Connecting frame; 404. First electric motor; 5. Wire basket; 6. Screen; 7. Conveying device; 8. Mixing and stirring component; 801. Mixing tank; 802. Second electric motor; 803. Stirring paddle; 804. Discharge port. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0024] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] like Figures 1 to 5 As shown, the manufactured sand made from aerated slag for concrete production includes a frame 1, and a washing tank 2 is installed inside the frame 1 for washing the slag with water; as shown Figure 1 , Figure 3 and Figure 4 As shown, specifically, the water washing tank 2 includes a water tank 201 fixedly installed in the frame 1. Several sets of water pipes 202 are fixedly installed on the inner wall of the water tank 201, and nozzles 203 are evenly arranged on the water pipes 202. The input end of each nozzle 203 is connected to a connecting pipe 204.
[0026] More specifically, water flows through the connecting pipe 204 into the water pipe 202 and is evenly sprayed out through the nozzle 203 to thoroughly rinse the gasified slag in the mesh basket 5 placed in the water tank 201. This effectively removes fine particles, dust, and soluble impurities from the slag, improving its cleanliness. During the washing process, the water flow and rinsing time must be controlled to ensure the cleaning effect without excessively wasting water resources.
[0027] The frame 1 is equipped with a vibrating screen 3 for preliminary screening of slag. A moving component 4 is mounted on the frame 1, and a wire basket 5 is connected to the end of the moving component 4. Figure 1 , Figure 2 and Figure 3 As shown, specifically, the moving component 4 includes an electric push rod 401 fixedly installed on the top surface of the frame 1. A connecting seat 402 is fixedly installed at the end of the electric push rod 401. A connecting frame 403 is rotatably installed on the end face of the connecting seat 402. A first motor 404 is fixedly installed on the surface of the connecting frame 403. The output end of the first motor 404 is fixedly inserted into the connecting seat 402.
[0028] More specifically, by extending and retracting the electric push rod 401, the connecting seat 402, the connecting frame 403, and the mesh basket 5 are moved as a whole, so as to accurately place the mesh basket 5 into the washing tank 2 for washing. After washing, it can be lifted up and the first motor 404 is started to tilt the mesh basket 5 and pour the slag onto the screen 6.
[0029] In some practical applications, when washing slag, the moving component 4 places the mesh basket 5 inside the water tank 201, and the discharge end of the vibrating screen 3 is located directly above the mesh basket 5.
[0030] More specifically, the slag after preliminary screening by the vibrating screen 3 falls directly into the mesh basket 5. Then, water flows through the nozzle 203 to wash the slag in the mesh basket 5. After the water washing operation is completed, the moving component 4 moves the mesh basket 5 out of the water tank 201, thereby automating the slag washing process and improving production efficiency.
[0031] The frame 1 is equipped with a screen 6 for secondary screening of the washed slag.
[0032] A conveying device 7 is installed inside the frame 1 at the discharge end of the screen 6 for conveying slag. Visual inspection devices are installed on both sides of the conveying device 7 to detect the particle size of the slag. A mixing and stirring assembly 8 is installed inside the frame 1 at the discharge end of the conveying device 7 to mix the water-washed and screened gasified slag with manufactured sand of a specific particle size. More specifically, the screened slag is conveyed to the next process via the conveying device 7. The visual inspection devices on both sides allow for real-time monitoring of the slag particles during transport, detecting their size, shape, and other characteristics to ensure the slag quality meets requirements. The mixing and stirring assembly 8 then mixes the water-washed and screened gasified slag with manufactured sand of a specific particle size in a certain proportion to form manufactured sand with gasified slag that meets the requirements for concrete production.
[0033] like Figure 1 , Figure 2 , Figure 5 As shown, specifically, the mixing assembly 8 includes a mixing tank 801 fixedly installed in the frame 1. A second motor 802 is fixedly installed on the bottom surface of the mixing tank 801. The output end of the second motor 802 passes through the mixing tank 801 and is fixedly connected to a stirring paddle 803. A discharge port 804 is provided on the bottom surface of the mixing tank 801.
[0034] More specifically, after the gasification slag and manufactured sand of a specific particle size are washed and screened, they enter the mixing tank 801. The mixing paddle 803 is driven to rotate by the second motor 802 to fully mix and stir the materials, so that the gasification slag and manufactured sand are evenly dispersed to form a stable gasification slag-blended manufactured sand. The evenly mixed material can be discharged through the discharge port 804 and enter the subsequent concrete production process.
[0035] In summary: The gasification slag is initially screened by the vibrating screen 3 to remove larger particles and impurities. After screening, the slag enters the wire basket 5 and is moved to the inside of the washing tank 2 by the moving component 4. The slag is washed by the water flow in the washing tank 2 to remove fine particles, dust and some soluble substances. The moving component 4 lifts the wire basket 5 and pours the washed slag into the screen 6. The washed slag is then screened a second time by the screen 6 to further remove residual impurities and particles that do not meet the particle size requirements, ensuring that the final slag meets the particle size requirements of manufactured sand.
[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An aerated furnace slag machine-made sand for concrete production, characterized in that, Includes a frame (1), a water washing tank (2) is provided inside the frame (1) for washing slag with water flow, a vibrating screen (3) is provided inside the frame (1) for preliminary screening of slag, a moving component (4) is provided on the frame (1) and a wire basket (5) is connected to the end of the moving component (4), and a screen (6) is provided inside the frame (1) for secondary screening of the slag after water washing.
2. The aerated furnace slag machine-made sand for concrete production according to claim 1, characterized in that, A conveying device (7) is provided inside the frame (1) and at the discharge end of the screen (6) for conveying slag. Visual inspection devices are provided on both sides of the conveying device (7) for detecting the particles of slag. A mixing and stirring assembly (8) is provided inside the frame (1) and at the discharge end of the conveying device (7) for mechanically mixing the water-washed and screened gasified slag with a specific particle size.
3. The aerated furnace slag machine-made sand for concrete production according to claim 1, characterized in that, The washing tank (2) includes a water tank (201) fixedly installed in the frame (1). Several sets of water pipes (202) are fixedly installed on the inner wall of the water tank (201), and nozzles (203) are evenly arranged on the water pipes (202). The input end of each nozzle (203) is connected to a connecting pipe (204).
4. The aerated furnace slag machine-made sand for concrete production according to claim 1, characterized in that, The moving component (4) includes an electric push rod (401) fixedly installed on the top surface of the frame (1). A connecting seat (402) is fixedly installed at the end of the electric push rod (401). A connecting frame (403) is rotatably installed on the end face of the connecting seat (402). A first motor (404) is fixedly installed on the surface of the connecting frame (403). The output end of the first motor (404) is fixedly inserted into the connecting seat (402).
5. The aerated furnace slag machine-made sand for concrete production according to claim 2, characterized in that, The mixing assembly (8) includes a mixing tank (801) fixedly installed in the frame (1). A second motor (802) is fixedly installed on the bottom surface of the mixing tank (801). The output end of the second motor (802) passes through the mixing tank (801) and is fixedly connected to a stirring paddle (803). A discharge port (804) is provided on the bottom surface of the mixing tank (801).
6. The aerated furnace slag machine-made sand for concrete production according to claim 3, characterized in that, The slag is washed by moving component (4) which places the mesh basket (5) inside the water tank (201) and the discharge end of the vibrating screen (3) is located directly above the mesh basket (5).