Wet screening method fine aggregate screening device

Abstract

A wet screening method fine aggregate screening device relates to a fine aggregate screening device, the diameter of a circular mesh basket A (6), the diameter of a circular mesh basket B (10) and the diameter of a circular mesh basket C (15) are gradually increased, and the diameters of meshes formed in the circular mesh basket A (6), the meshes formed in the circular mesh basket B (10) and the meshes formed in the circular mesh basket C (15) are gradually reduced. The lowest points of the inclined circular net basket A (6), the inclined circular net basket B (10) and the inclined circular net basket C (15) are located on the same vertical line, and a water outlet of the water inlet pipe (1) is located above the lowest point of the circular net basket A (6); a plurality of circular net baskets are obliquely arranged from top to bottom according to the size from small to large and the meshes from large to small and are driven by a motor to rotate, and the wet screening method aims that fine powder mixed in fine aggregate is washed away through water flow washing, and particles with different particle sizes mixed in the fine aggregate are collected in the circular net baskets with different meshes are achieved.

Description

Technical Field

[0001] The present invention relates to a fine aggregate screening device, and particularly to a wet screening method fine aggregate screening device. Background Art

[0002] The main purpose of the fine aggregate screening test is to separate particles of different particle sizes through vibration or mechanical means by passing them through sieves with different pore sizes, so as to determine the aggregate particle size distribution. This method is an important means for evaluating the aggregate particle size distribution and quality control, and is widely used in fields such as building materials and road engineering. Through the screening test, the distribution of particles of different particle sizes in the aggregate can be understood, thereby evaluating the quality and uniformity of the aggregate. Determine the particle gradation and fineness of fine aggregates (natural sand, artificial sand, stone chips). For fine aggregates used in cement concrete, the dry screening method can be used, or the water washing method can also be used if necessary; for fine materials used in asphalt mixtures and bases, the water washing method must be used for screening. Generally, the water screening method is used for fine powders. The existing water washing method usually adopts the manual water washing method. After water washing, it is dried, and then mechanically screened. When water washing, generally, the fine aggregate is put into a container and continuously washed with water. During the washing process, the water flow is likely to carry out the particulate matter, resulting in inaccurate screening. Moreover, the process of screening after water washing is time-consuming, laborious, low in efficiency, and has a large manual labor intensity. If water washing and screening are combined, it will have the advantages of not only improving the accuracy but also improving the efficiency. Summary of the Invention

[0003] In order to overcome the deficiencies in the background art, the present invention discloses a wet screening method fine aggregate screening device. By arranging a plurality of circular wire baskets from top to bottom in an inclined manner with the size increasing from small to large and the mesh holes decreasing from large to small and driving their rotation by a motor, the purpose of the wet screening method is achieved, that is, the fine powder mixed in the fine aggregate is washed away by the water flow, and the particles of different particle sizes mixed in the fine aggregate are collected in the circular wire baskets with different mesh holes.

[0004] In order to achieve the above-mentioned invention purpose, the present invention adopts the following technical solutions: A wet sieving method fine aggregate sieving device, comprising a cylinder body, a circular wire basket C and a circular wire basket A. There is an upper-open cylinder cavity inside the cylinder body. A motor is provided below the cylinder body. The rotating shaft of the motor extends into the cylinder cavity through a perforation provided at the center of the bottom of the cylinder body. At the upper end of the rotating shaft, there is a prism C extending upward. At the upper end of the prism C, there is a prism A extending upward with a decreasing diameter. Inside the circular wire basket C, there is an upper-open cavity C. At the central part of the bottom surface of the circular wire basket C, there is a multi-faceted tube C concentric with the circular wire basket C and penetrating through the top and bottom of the circular wire basket C. The circular wire basket C is slidably sleeved on the prism C by means of the multi-faceted tube C. Inside the circular wire basket A, there is an upper-open cavity A. At the central part of the bottom surface of the circular wire basket A, there is a multi-faceted tube A concentric with the circular wire basket A and penetrating through the top and bottom of the circular wire basket A. The circular wire basket A is slidably sleeved on the prism A by means of the multi-faceted tube A. Between the prism C and the prism A, there is a prism B with a diameter smaller than that of the prism C and larger than that of the prism A. Inside the circular wire basket B, there is an upper-open cavity B. At the central part of the bottom surface of the circular wire basket B, there is a multi-faceted tube B concentric with the circular wire basket B and penetrating through the top and bottom of the circular wire basket B. The circular wire basket B is slidably sleeved on the prism B by means of the multi-faceted tube B. The diameter gradually increases from the diameter of the circular wire basket A to the diameter of the circular wire basket B and then to the diameter of the circular wire basket C. The diameter of the mesh holes provided in the circular wire basket A, the circular wire basket B and the circular wire basket C gradually decreases. The cylinder body is inclined. The motor, its rotating shaft, and the prisms A, B, and C are all inclined with the cylinder body. The circular wire baskets A, B, and C sleeved on the prisms A, B, and C also incline with the prisms A, B, and C. The lowest points of the inclined circular wire baskets A, B, and C are located on the same vertical line. The water outlet of the water inlet pipe is above the lowest point of the circular wire basket A. A water outlet pipe is provided at the lowest point of the cylinder body.

[0005] In the wet sieving method fine aggregate sieving device described above, the number of the prisms B is multiple. The diameters of the multiple prisms B are set to gradually decrease from one end of the prism C to one end of the prism A. The number of the circular wire baskets B is multiple. The multi-faceted tubes B provided in the multiple circular wire baskets B are respectively slidably sleeved on the multiple prisms B. The diameters of the multiple circular wire baskets B are set to gradually decrease from one end of the circular wire basket C to one end of the circular wire basket A. The mesh holes provided in the multiple circular wire baskets B are set to gradually increase from one end of the circular wire basket C to one end of the circular wire basket A.

[0006] In the wet sieving method fine aggregate sieving device described above, the multi-faceted tube C and the prism C are in clearance fit, the multi-faceted tube B and the prism B are in clearance fit, and the multi-faceted tube A and the prism A are in clearance fit.

[0007] In the wet sieving method fine aggregate sieving device described above, a speed reducer is provided between the motor and the rotating shaft.

[0008] For the wet sieve method fine aggregate screening device described above, heating wires are covered on the outer wall of the cylinder body.

[0009] For the wet sieve method fine aggregate screening device described above, multiple supporting legs are provided at the bottom of the cylinder body.

[0010] For the wet sieve method fine aggregate screening device described above, a support column is provided at the bottom of the motor.

[0011] For the wet sieve method fine aggregate screening device described above, a support rod is provided between the water inlet pipe and the cylinder body.

[0012] For the wet sieve method fine aggregate screening device described above, the outer edge of the circular wire basket C and the inner wall of the cylinder cavity are in clearance fit.

[0013] Due to the adoption of the above technical solution, the present invention has the following beneficial effects: For the wet sieve method fine aggregate screening device of the present invention, by arranging multiple circular wire baskets from top to bottom in an inclined manner with the size increasing from small to large and the mesh holes decreasing from large to small and driving their rotation by a motor, and flushing the fine aggregate in the topmost circular wire basket with water flow, the fine powder and smaller particles mixed in the fine aggregate are washed by the water flow to the next lower circular wire basket, and under the flushing of the water flow, the fine powder and even smaller particles mixed in the fine aggregate are washed by the water flow to the next lower circular wire basket until the fine powder mixed in the fine aggregate is washed away and the particles with different particle sizes mixed in the fine aggregate are collected in the circular wire baskets with different mesh holes, thus realizing the purpose of the wet sieve method of washing away the impurities in the fine aggregate by using the water flow flushing and the rotation of the circular wire baskets and simultaneously separating the particles with different particle sizes; the structure of the present invention is reasonable, the step of vibrating and shaking the sieve is omitted, the water flow is used to play the role of flushing and scouring separation, the separation precision is high, and the defect that the particle size is reduced due to the particles being washed away by the water flow during the traditional water washing method is overcome, and it has strong popularization value. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the present invention; Figure 2 It is a schematic structural diagram of the cooperation of prism A, prism B, prism C and the motor of the present invention; Figure 3 It is a schematic structural diagram of the circular wire basket C of the present invention.

[0015] In the figure: 1, water inlet pipe; 2, cylinder body; 3, prism A; 4, multi-edge pipe A; 5, cavity A; 6, circular wire basket A; 7, multi-edge pipe B; 8, prism B; 9, cavity B; 10, circular wire basket B; 11, cylinder cavity; 12, prism C; 13, multi-edge pipe C; 14, cavity C; 15, circular wire basket C; 16, rotating shaft; 17, heating wire; 18, water outlet pipe; 19, perforation; 20, reducer; 21, motor; 22, supporting leg; 23, support column; 24, support rod. Detailed Embodiment

[0016] The present invention can be explained in more detail by the following embodiments. The present invention is not limited to the following embodiments. The purpose of disclosing the present invention is to protect all changes and improvements within the scope of the present invention; In this application, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation.

[0017] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0018] In addition, the terms "install", "set", "provided with", "connect", "connected", "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0019] Combined with the attached Figures 1 to 3The described wet sieving fine aggregate sieving device includes a cylinder body 2, a circular wire basket C15, and a circular wire basket A6. An upper-open cylinder cavity 11 is provided inside the cylinder body 2. A motor 21 is provided below the cylinder body 2. A rotating shaft 16 of the motor 21 extends into the cylinder cavity 11 through a perforation 19 provided at the central position of the bottom of the cylinder body 2. A speed reducer 20 is provided between the motor 21 and the rotating shaft 16. An upward-extending prism C12 is provided at the upper end of the rotating shaft 16. An upward-extending prism A3 with a gradually decreasing diameter is provided at the upper end of the prism C12. An upper-open cavity C14 is provided inside the circular wire basket C15. At the central part of the bottom surface of the circular wire basket C15, a multi-faceted tube C13 concentric with the circular wire basket C15 and penetrating through the top and bottom of the circular wire basket C15 is provided. The circular wire basket C15 is slidably sleeved on the prism C12 by means of the multi-faceted tube C13. An upper-open cavity A5 is provided inside the circular wire basket A6. At the central part of the bottom surface of the circular wire basket A6, a multi-faceted tube A4 concentric with the circular wire basket A6 and penetrating through the top and bottom of the circular wire basket A6 is provided. The circular wire basket A6 is slidably sleeved on the prism A3 by means of the multi-faceted tube A4. A prism B8 with a diameter smaller than that of the prism C12 and larger than that of the prism A3 is provided between the prism C12 and the prism A3. An upper-open cavity B9 is provided inside the circular wire basket B10. At the central part of the bottom surface of the circular wire basket B10, a multi-faceted tube B7 concentric with the circular wire basket B10 and penetrating through the top and bottom of the circular wire basket B10 is provided. The circular wire basket B10 is slidably sleeved on the prism B8 by means of the multi-faceted tube B7. The diameter gradually increases from the diameter of the circular wire basket A6 to the diameter of the circular wire basket B10 and then to the diameter of the circular wire basket C15. The diameter of the mesh holes provided in the circular wire basket A6 to the mesh holes provided in the circular wire basket B10 and then to the mesh holes provided in the circular wire basket C15 gradually decreases. The cylinder body 2 is inclined. The motor 21, its rotating shaft 16, and the prisms A3, B8, and C12 are all inclined along with the cylinder body 2. The circular wire baskets A6, B10, and C15 sleeved on the prisms A3, B8, and C12 also incline along with the prisms A3, B8, and C12. The lowest points of the inclined circular wire baskets A6, B10, and C15 are located on the same vertical line. The water outlet of the water inlet pipe 1 is located above the lowest point of the circular wire basket A6. An outlet pipe 18 is provided at the lowest point of the cylinder body 2. The number of the prisms B8 is multiple. The diameters of the multiple prisms B8 are arranged to gradually decrease from one end of the prism C12 to one end of the prism A3. The number of the circular wire baskets B10 is multiple. The multi-faceted tubes B7 provided in the multiple circular wire baskets B10 are respectively slidably sleeved on the multiple prisms B8. The diameters of the multiple circular wire baskets B10 are arranged to gradually decrease from one end of the circular wire basket C15 to one end of the circular wire basket A6. The mesh holes provided in the multiple circular wire baskets B10 are arranged to gradually increase from one end of the circular wire basket C15 to one end of the circular wire basket A6. The multi-faceted tube C13 and the prism C12 are in clearance fit, the multi-faceted tube B7 and the prism B8 are in clearance fit, and the multi-faceted tube A4 and the prism A3 are in clearance fit.A heating wire 17 is covered on the outer wall of the cylinder body 2, multiple legs 22 are provided at the bottom of the cylinder body 2, a support column 23 is provided at the bottom of the motor 21, and a support rod 24 is provided between the water inlet pipe 1 and the cylinder body 2. The outer edge of the circular wire basket C is in clearance fit with the inner wall of the cylinder cavity 11.,

[0020] When implementing the wet sieve method fine aggregate screening device of the present invention, during use, the heating wire 17 and the motor 21 are respectively connected to the switch and the power supply, the water inlet pipe 1 is connected to the water storage tank, and the fine aggregate to be screened is placed in the cavity A5 provided in the circular wire basket A6. The low-speed gear of the motor 21 is turned on. The motor 21 drives the rotating shaft 16 to rotate at a low speed through the speed reducer 20. The rotating shaft 16 drives the prism A3, the prism B8, and the prism C12 to rotate at a low speed, and then drives the circular wire basket A6, the circular wire basket B10, and the circular wire basket C15 to rotate at a low speed. Since the circular wire basket A6, the circular wire basket B10, and the circular wire basket C15 are all inclined, the fine aggregate to be screened tumbles continuously at the lowest point of the cavity A5 as the circular wire basket A6 rotates. The water inlet pipe 1 is opened, and the water flow flushes the fine aggregate to be screened during tumbling. Since the lowest points of the inclined circular wire basket A6, the circular wire basket B10, and the circular wire basket C15 are on the same vertical line, the particles smaller than the mesh holes provided in the circular wire basket A6 and the fine powder mixed in the fine aggregate to be screened are all washed down into the cavity B9. Under the combined action of the rotation of the circular wire basket B10 and the water flow flowing down from the lowest point of the circular wire basket A6, the particles smaller than the mesh holes provided in the circular wire basket B10 and the fine powder mixed in the fine aggregate to be screened are all washed down into the cavity C14. Since the mesh holes of the circular wire basket C15 are relatively dense, only the fine powder mixed in the fine aggregate to be screened flows down along the mesh holes provided in the circular wire basket C15 to the bottom of the cylinder cavity 11 and flows out of the cylinder body 2 through the water outlet pipe 18. The smaller particulate matters in the fine aggregate are all intercepted in the cavity C14 provided in the circular wire basket C15. With the continuous flushing of the water flow, the purity of the particulate matters with different particle diameters intercepted in the circular wire basket A6, the circular wire basket B10, and the circular wire basket C15 gradually increases and gradually reaches the required level; After the purity of the particulate matters with different particle diameters intercepted in the circular wire basket A6, the circular wire basket B10, and the circular wire basket C15 reaches the requirement, the high-speed gear of the motor 21 is turned on. The motor 21 drives the rotating shaft 16 to rotate at a high speed through the speed reducer 20. The rotating shaft 16 drives the prism A3, the prism B8, and the prism C12 to rotate at a high speed, and then drives the circular wire basket A6, the circular wire basket B10, and the circular wire basket C15 to rotate at a high speed. The fine aggregates with different particle diameters in the circular wire basket A6, the circular wire basket B10, the circular wire basket C15, the cavity A5, the cavity B9, and the cavity C14 are centrifugally dried. After reaching the drying requirement, the motor 21 is turned off; Turn on the heating wire 17 to heat the outer wall of the cylinder body 2, thereby heating the circular wire baskets A6, B10, and C15 in the cylinder cavity 11 and the fine aggregates with different particle sizes in the cavities A5, B9, and C14. After the drying is completed, since the diameter of the prism A3 is smaller than that of the prism B8, the diameter of the prism B8 is smaller than that of the prism C12, and the multi-sided pipe C13 and the prism C12 are in clearance fit, the multi-sided pipe B7 and the prism B8 are in clearance fit, and the multi-sided pipe A4 and the prism A3 are in clearance fit, it is possible to easily remove the circular wire baskets A6, B10, and C15 in sequence, and pour out, collect, and weigh the fine aggregates with different particle sizes in the cavities A5, B9, and C14 to calculate the proportion of the fine aggregate composition.

[0021] The circuits, electronic components, and modules involved are all prior arts, which can be fully realized by those skilled in the art without further elaboration. The content protected by this application does not involve improvements to software and methods either.

[0022] The present invention is not limited to the above embodiments. No matter what changes are made in its shape or structure, they all fall within the protection scope of the present invention. The protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A wet sieving method fine aggregate sieving device, characterized in that: It includes a cylinder body (2), a circular wire basket C (15) and a circular wire basket A (6). Inside the cylinder body (2), there is an upper-open cylinder cavity (11). Below the cylinder body (2), there is a motor (21). The rotating shaft (16) of the motor (21) extends into the cylinder cavity (11) through a perforation (19) provided at the center of the bottom of the cylinder body (2). At the upper end of the rotating shaft (16), there is a prism C (12) extending upward. At the upper end of the prism C (12), there is a prism A (3) extending upward with a decreasing diameter. Inside the circular wire basket C (15), there is an upper-open cavity C (14). At the center of the bottom surface of the circular wire basket C (15), there is a multi-faceted tube C (13) concentric with the circular wire basket C (15) and penetrating through the top and bottom of the circular wire basket C (15). The circular wire basket C (15) is slidably sleeved on the prism C (12) by means of the multi-faceted tube C (13). Inside the circular wire basket A (6), there is an upper-open cavity A (5). At the center of the bottom surface of the circular wire basket A (6), there is a multi-faceted tube A (4) concentric with the circular wire basket A (6) and penetrating through the top and bottom of the circular wire basket A (6). The circular wire basket A (6) is slidably sleeved on the prism A (3) by means of the multi-faceted tube A (4). Between the prism C (12) and the prism A (3), there is a prism B (8) with a diameter smaller than that of the prism C (12) and larger than that of the prism A (3). Inside the circular wire basket B (10), there is an upper-open cavity B (9). At the center of the bottom surface of the circular wire basket B (10), there is a multi-faceted tube B (7) concentric with the circular wire basket B (10) and penetrating through the top and bottom of the circular wire basket B (10). The circular wire basket B (10) is slidably sleeved on the prism B (8) by means of the multi-faceted tube B (7). The diameter gradually increases from the circular wire basket A (6) to the circular wire basket B (10) and then to the circular wire basket C (15). The diameter of the mesh holes gradually decreases from the mesh holes provided in the circular wire basket A (6) to the mesh holes provided in the circular wire basket B (10) and then to the mesh holes provided in the circular wire basket C (15). The cylinder body (2) is inclined. The motor (21), its rotating shaft (16), the prism A (3), the prism B (8), and the prism C (12) are all inclined with the cylinder body (2). The circular wire baskets A (6), B (10), and C (15) sleeved on the prism A (3), prism B (8), and prism C (12) also incline with the prism A (3), prism B (8), and prism C (12). The lowest points of the inclined circular wire baskets A (6), B (10), and C (15) are on the same vertical line. The outlet of the water inlet pipe (1) is above the lowest point of the circular wire basket A (6). At the lowest point of the cylinder body (2), there is a water outlet pipe (18).

2. The wet sieving fine aggregate sieving device according to claim 1, characterized in that: The number of prisms B (8) is multiple, and the diameters of the multiple prisms B (8) are arranged to gradually decrease from one end of the prism C (12) to one end of the prism A (3). There are multiple circular wire baskets B (10), and the multi-faceted tubes B (7) provided on the multiple circular wire baskets B (10) are respectively slidably sleeved on the multiple prisms B (8). The diameters of the multiple circular wire baskets B (10) are arranged to gradually decrease from one end of the circular wire basket C (15) to one end of the circular wire basket A (6). The mesh holes provided on the multiple circular wire baskets B (10) are arranged to gradually increase from one end of the circular wire basket C (15) to one end of the circular wire basket A (6).

3. The wet sieving fine aggregate sieving device according to claim 1, characterized in that: The multi-faceted tube C (13) and the prism C (12) are in clearance fit, the multi-faceted tube B (7) and the prism B (8) are in clearance fit, and the multi-faceted tube A (4) and the prism A (3) are in clearance fit.

4. The wet sieving fine aggregate sieving device according to claim 1, characterized in that: A speed reducer (20) is provided between the motor (21) and the rotating shaft (16).

5. The wet sieving fine aggregate sieving device according to claim 1, characterized in that: A heating wire (17) is covered on the outer wall of the cylinder (2).

6. The wet sieving fine aggregate sieving device according to claim 1, characterized in that: Multiple legs (22) are provided at the bottom of the cylinder (2).

7. The wet sieving fine aggregate sieving device according to claim 1, characterized in that: A support column (23) is provided at the bottom of the motor (21).

8. The wet sieving fine aggregate sieving device according to claim 1, characterized in that: A support rod (24) is provided between the water inlet pipe (1) and the cylinder (2).

9. The wet sieving fine aggregate sieving device according to claim 1, characterized in that: The outer edge of the circular wire basket C and the inner wall of the cylinder cavity (11) are in clearance fit.

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