Screening equipment for concrete preparation tailing sand aggregate
Through the dual screening structure and vacuum cleaner, the problems of low screening efficiency and dust pollution of traditional concrete raw materials are solved, and efficient and environmentally friendly screening effect is achieved.
Patent Information
- Application Number
- CN202422315864.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-23
AI Technical Summary
Traditional concrete raw material screening devices require multiple screenings, which are inefficient and produce a lot of dust, polluting the environment.
A double screening structure is adopted, including an outer screen and an inner screen. The outer screen and an inner screen work at the same time. Materials of different particle sizes are screened separately and a vacuum structure is equipped to absorb dust.
It improves screening efficiency, reduces screening time, reduces dust emissions, and reduces air pollution.
Smart Images
Figure CN223184916U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of concrete preparation, in particular to tailings sand aggregate screening equipment for concrete preparation. Background Art
[0002] Tailings sand aggregate used to prepare concrete needs to be screened multiple times before being mixed with water and other materials in a certain proportion. After stirring, cement concrete is obtained, which is widely used in the construction field.
[0003] However, traditional concrete raw material screening devices are mostly carried out in the open air, and use gravity sliding process supplemented by vibration to perform screening. This process not only generates a lot of dust and pollutes the environment, but also requires poor screening effect. Multiple screenings are required to obtain concrete raw materials of a certain size. Utility Model Content
[0004] The purpose of the utility model is to provide a tailings sand aggregate screening device for concrete preparation, so as to solve the problem proposed in the above background technology that multiple screenings are required to obtain concrete raw materials of a certain size.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tailings sand aggregate screening device for concrete preparation, comprising a support frame, the inner wall surface of which is rotatably connected to a shell, and also comprising a motor 1, which is fixedly mounted on the side surface of the support frame, and the rotating shaft of the motor 1 is fixedly connected to the rotating shaft of the shell, and a double screening structure is installed inside the shell, and the double screening structure can simultaneously roll and screen materials through an outer screen and an inner screen.
[0006] Preferably, the double screening structure includes an outer screen, which is rotatably mounted on the inner wall surface of the outer shell, a gear one is fixedly mounted on the outer surface of the upper end of the outer screen, and gear one is meshingly connected with gear two, the coaxial shaft of gear two is fixedly connected with the rotating shaft of motor two, and motor two is fixedly mounted on the upper surface of the outer shell, an inner screen is fixedly mounted inside the outer screen, the upper end of the inner screen passes through the upper surface of the outer screen, and a discharge port is provided at the lower end of the outer screen, which corresponds to the lower end openings of the outer screen and the inner screen, respectively.
[0007] By adopting the above technical solution, the double screening structure improves the screening efficiency, so that the material is screened into three types in the outer shell.
[0008] Preferably, a feed port is provided on the upper surface of the outer shell, and the feed port corresponds to the upper end of the inner screen.
[0009] By adopting the above technical solution, the material enters the inner screen for screening.
[0010] Preferably, mesh holes are provided on the outer surfaces of the outer screen and the inner screen, and the mesh hole diameter of the outer screen is smaller than the mesh hole diameter of the inner screen.
[0011] The above technical solution is used to facilitate screening out tailings sand aggregates of different sizes.
[0012] Preferably, the shell is further connected to a dust suction structure, which can absorb the screened dust inside the shell through a dust box.
[0013] By adopting the above technical solution, the dust generated by screening is reduced and the adhesion of dust to the screen is reduced.
[0014] Preferably, the dust suction structure includes a dust box, which is fixedly mounted on the upper surface of the support frame, and a dust suction pump is fixedly mounted on the upper surface of the dust box. A docking tube is installed through the front surface of the dust box, and the other end of the docking tube is connected to a connecting pipe, and the lower end of the connecting pipe is fixedly mounted on the front surface of the outer shell.
[0015] By adopting the above technical solution, dust during screening can enter the dust box.
[0016] Preferably, the connecting pipe is configured as a soft structure.
[0017] By adopting the above technical solution, the rotation of the shell will not affect dust collection.
[0018] Compared with the prior art, the beneficial effects of the present invention are: the tailings sand aggregate screening equipment for concrete preparation:
[0019] 1. The tailings sand aggregate screening equipment for concrete preparation is equipped with a double screening structure. The outer screen and the inner screen are nested. The outer screen and the inner screen work simultaneously, respectively taking on the screening tasks of different particle size ranges, thereby improving the overall screening efficiency and reducing the screening time;
[0020] 2. Furthermore, a discharge port is provided on the bottom surface of the housing, which can be opened and separated to correspond to the lower openings of the outer screen and the inner screen, respectively, so that materials of different sizes in the outer screen and the inner screen can be discharged separately;
[0021] 3. Furthermore, a dust suction structure is provided, which can promptly suck away a large amount of dust generated during the screening process, greatly reducing the emission of dust, reducing air pollution, reducing the accumulation of dust between the outer screen and the inner screen, and reducing blockage. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic diagram of the shaft side surface structure of the utility model;
[0023] Figure 2This is a schematic diagram of the housing rotation structure of the utility model;
[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model from above;
[0025] Figure 4 This is a schematic diagram of the front cross-sectional structure of the utility model;
[0026] Figure 5 This is a schematic diagram of the side sectional structure of the utility model;
[0027] Figure 6 This is a schematic diagram of the front cross-sectional structure of the outer screen of the present utility model.
[0028] In the figure: 1. Support frame; 2. Outer shell; 3. Motor 1; 4. Outer screen; 5. Inner screen; 6. Gear 1; 7. Gear 2; 8. Motor 2; 9. Discharge port; 10. Connecting pipe; 11. Dust box; 12. Dust pump. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0030] See also Figure 1-6 The utility model provides a technical solution: a tailings sand aggregate screening device for concrete preparation, including a support frame 1, a shell 2, a motor 3, an outer screen 4, an inner screen 5, a gear 1 6, a gear 2 7, a motor 2 8, a discharge port 9, a connecting pipe 10, a dust box 11, and a dust suction pump 12.
[0031] Example 1: The tailings sand aggregate screening equipment for concrete production is provided with a double screening structure, so that the outer screen 4 and the inner screen 5 rotate and screen the material simultaneously, specifically:
[0032] The inner wall surface of the support frame 1 is rotatably connected to the shell 2, and also includes a motor 3, which is fixedly installed on the side surface of the support frame 1, and the rotating shaft of the motor 3 is fixedly connected to the rotating shaft of the shell 2. A double screening structure is installed inside the shell 2. The double screening structure can simultaneously roll and screen the material through the outer screen 4 and the inner screen 5. The double screening structure includes an outer screen 4, which is rotatably installed on the inner wall surface of the shell 2. A gear 6 is fixedly installed on the outer surface of the upper end of the outer screen 4, and the gear 6 is meshed with a gear 2 7. The gear 2 7 The coaxial shaft is fixedly connected with the rotating shaft of the motor 2 8, the motor 2 8 is fixedly mounted on the upper surface of the outer shell 2, the inner screen 5 is fixedly mounted inside the outer screen 4, the upper end of the inner screen 5 passes through the upper surface of the outer screen 4, the lower end of the outer screen 4 is provided with a discharge port 9, the discharge port 9 corresponds to the lower end openings of the outer screen 4 and the inner screen 5 respectively, the upper surface of the outer shell 2 is provided with a feed port, the feed port corresponds to the upper end of the inner screen 5, the outer surfaces of the outer screen 4 and the inner screen 5 are provided with meshes, the mesh aperture of the outer screen 4 is smaller than the mesh aperture of the inner screen 5;
[0033] When the concrete preparation tailings sand aggregate screening equipment is used, Figure 1 As shown, first, the motor 1 3 installed on the side surface of the support frame 1 is turned on. Since the rotating shaft of the motor 1 3 is fixedly connected to the rotating shaft of the shell 2, the motor 1 3 will drive the shell 2 to rotate. A feed port is provided on the upper surface of the shell 2. When the shell 2 rotates, Figure 2 As shown, the feed port will be located on the rear surface, open the feed to add materials, because the feed port corresponds to the opening of the inner screen 5, so the material first enters the inner screen 5, and then the motor 2 8 will be turned on, as shown in FIG. Figure 4 As shown, the gear 1 6 fixedly connected to the rotation of the motor 2 8 is meshed with the gear 2 7. Since the gear 2 7 is fixedly mounted on the outer surface of the upper end of the outer screen 4, the outer screen 4 will be driven to rotate. Since the inner screen 5 is fixedly mounted inside the outer screen 4, the outer screen 4 and the inner screen 5 will rotate at the same time, and the material will be screened by the outer screen 4 and the inner screen 5. Since the mesh diameter of the outer screen 4 is smaller than the mesh diameter of the inner screen 5, the material will be screened in turn, and the material smaller than the mesh diameter of the outer screen 4 will enter the interior of the shell 1. Through double screening, it can enter the concrete The particle size of the tailings sand aggregate in the soil preparation link is more uniform. The outer screen 4 and the inner screen 5 work at the same time, respectively taking on the screening tasks of different particle size ranges, improving the overall screening efficiency and reducing the screening time. When the material needs to be discharged, the outer shell 2 will be driven by the motor 3 to rotate to a vertical state, and a discharge port 9 is provided on the bottom surface of the outer shell 2 corresponding to the lower end outlet of the outer screen 4 and the inner screen 5. The discharge port 9 can be opened respectively in correspondence with the lower end openings of the outer screen 4 and the inner screen 5, so that the materials can be taken out respectively. A discharge port is also provided on the bottom surface of the outer shell 2, which can discharge the material in the outer shell 2.
[0034] Example 2: The tailings sand aggregate screening equipment for concrete production is also provided with a dust collection structure to reduce the accumulation of dust inside the housing 2, specifically:
[0035] The housing 2 is also connected to a dust collection structure, which can absorb the screened dust inside the housing 2 through a dust box 11. The dust collection structure includes a dust box 11, which is fixedly mounted on the upper surface of the support frame 1. A dust pump 12 is fixedly mounted on the upper surface of the dust box 11. A docking pipe 13 is installed through the front surface of the dust box 11. The other end of the docking pipe 13 is connected to a connecting pipe 10. The lower end of the connecting pipe 10 is fixedly mounted on the front surface of the housing 2. The connecting pipe 10 is configured as a flexible structure.
[0036] Furthermore, when the tailings sand aggregate is rolled and screened in the outer screen 4 and the inner screen 5, dust will be raised inside. At this time, the dust suction pump 12 installed on the upper surface of the dust box 11 is turned on. Since the dust box 11 is connected to the connecting pipe 13 and the connecting pipe 10, and the lower end of the connecting pipe 10 is connected to the front surface of the outer shell 2, the dust in the outer shell 2 will enter the dust box 11 through the connecting pipe 10 and the connecting pipe 13, reducing the dust in the outer shell 2 and avoiding a large amount of dust accumulation on the outer screen 4 and the inner screen 5 to affect the screening. The connecting pipe 10 is set to a soft structure, so it can adapt to the rotation of the outer shell 2.
[0037] Working principle: When using the concrete to prepare tailings sand aggregate screening equipment, a double screening structure is set up, and the material is screened by the outer screen 4 and the inner screen 5, which improves the screening efficiency and makes the screening more detailed. A dust suction structure is also provided to allow dust to enter the dust box 11, reducing the accumulation of dust inside the outer shell 2 and increasing the overall practicality.
[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A tailings sand aggregate screening device for concrete production, comprising a support frame (1), wherein the inner wall surface of the support frame (1) is rotatably connected to a shell (2), characterized in that: The invention also includes a motor (3), wherein the motor (3) is fixedly mounted on the side surface of the support frame (1), and the rotating shaft of the motor (3) is fixedly connected to the rotating shaft of the housing (2). A double screening structure is installed inside the housing (2), and the double screening structure can simultaneously roll and screen materials through the outer screen (4) and the inner screen (5).
2. The tailings sand aggregate screening equipment for concrete production according to claim 1, characterized in that: The double screening structure includes an outer screen (4), the outer screen (4) is rotatably mounted on the inner wall surface of the outer shell (2), a gear 1 (6) is fixedly mounted on the outer surface of the upper end of the outer screen (4), and the gear 1 (6) is meshedly connected with a gear 2 (7), the coaxial shaft of the gear 2 (7) is fixedly connected with the rotating shaft of the motor 2 (8), and the motor 2 (8) is fixedly mounted on the upper surface of the outer shell (2), an inner screen (5) is fixedly mounted inside the outer screen (4), the upper end of the inner screen (5) passes through the upper surface of the outer screen (4), and a discharge port (9) is provided at the lower end of the outer screen (4), and the discharge port (9) corresponds to the lower end openings of the outer screen (4) and the inner screen (5), respectively.
3. The tailings sand aggregate screening equipment for concrete production according to claim 2, characterized in that: The upper surface of the outer shell (2) is provided with a feed opening, which corresponds to the upper end of the inner screen (5).
4. The tailings sand aggregate screening equipment for concrete production according to claim 2, characterized in that: The outer surfaces of the outer sieve (4) and the inner sieve (5) are both provided with mesh holes, and the mesh hole diameter of the outer sieve (4) is smaller than the mesh hole diameter of the inner sieve (5).
5. The tailings sand aggregate screening equipment for concrete production according to claim 2, characterized in that: The housing (2) is also connected to a dust suction structure, which can absorb the screened dust inside the housing (2) through a dust box (11).
6. The tailings sand aggregate screening equipment for concrete production according to claim 5, characterized in that: The dust collection structure comprises a dust box (11), the dust box (11) is fixedly mounted on the upper surface of the support frame (1), a dust collection pump (12) is fixedly mounted on the upper surface of the dust box (11), a connecting pipe (13) is installed through the front surface of the dust box (11), the other end of the connecting pipe (13) is connected to a connecting pipe (10), and the lower end of the connecting pipe (10) is fixedly mounted on the front surface of the housing (2).
7. The tailings sand aggregate screening equipment for concrete production according to claim 6, characterized in that: The connecting pipe (10) is configured as a soft structure.