Sand screening device for constructional engineering

Abstract

The utility model relates to the field of sand screening for constructional engineering, in particular to a sand screening device for constructional engineering. Comprising a box body for screening, a screening hopper capable of rotating, a sand storage cabinet for collecting fine sand, an impurity discharging mechanism for discharging coarse sand and the like. Compared with the prior art, the sand screening device has the advantages that the screening hopper which rotates rapidly is arranged in the device, fine sand is thrown out and coarse sand is reserved through the centrifugal effect provided by rotation of the screening hopper, and therefore relatively effective sand screening treatment is achieved.

Description

Technical Field

[0001] The utility model relates to the field of sand screening for construction engineering, and specifically refers to a sand screening device for construction engineering. Background Technique

[0002] During construction engineering, a lot of concrete is used. Among them, sand is a main raw material of concrete. The uneven sand grains and impurities in the sand will affect the quality of the concrete and need to be screened before use.

[0003] Generally, the method of screening sand is to set up an inclined screen mesh on the ground and sprinkle the sand manually onto the screen mesh. When the sand falls onto the screen mesh, the fine sand falls through the screen mesh, while the coarse sand and impurities slide to one side along the inclined mesh, so as to conduct screening. Through this method, when some fine sand touches the upper part of the screen mesh, it is very likely that a certain amount of fine sand will slide to the end of the coarse sand collection area together with the clamping of the coarse sand before it has time to fall, resulting in poor screening effect and causing a certain degree of waste. Therefore, a sand screening device for construction engineering is needed. Content of the Utility Model

[0004] I. Technical Problems to be Solved

[0005] The technical problem to be solved by the utility model is that the traditional method of screening sand will result in a certain amount of waste of fine sand, affecting the screening efficiency and quality.

[0006] II. Technical Solution

[0007] To solve the above technical problems, the technical solution provided by the utility model is: a sand screening device for construction engineering, including a box body, a screening bin is connected and arranged inside the box body, a sand storage cabinet matched with the screening bin is connected and arranged at the bottom of the box body, and a discharge port communicated with the screening bin is connected and arranged downward on one side of the box body.

[0008] A screening hopper is rotatably connected and arranged inside the box body in the screening bin. A support frame is connected to the top of the screening hopper. A driven shaft is connected and arranged upward on the support frame. A transmission shaft is rotatably connected and arranged upward at the top of the box body. A chain groove and chain transmission mechanism is jointly connected between the top of the transmission shaft extending to the outside of the box body and the driven shaft. A collecting part matched with the screening hopper is connected and arranged below the box body in the screening bin. A waste discharge channel is connected to the lower part of the screening hopper. A support shaft is rotatably connected and arranged in the waste discharge channel. A spiral blade is connected to the support shaft. The discharge port is arranged at the bottom of one end of the waste discharge channel extending to the outside of the box body.

[0009] Furthermore, a funnel that cooperates with the screening bucket is connected to the top of the box body, which is convenient for placing the sand that needs to be screened into the screening bucket and avoiding as much as possible the sand from directly entering the box space outside the screening bucket during the placing process. An electromagnetic valve is connected to the bottom end of the screening bucket, which can make the sand in the screening bucket fall into the impurity discharge channel below due to gravity when it is opened.

[0010] Furthermore, a plurality of support blocks are connected outwardly to the top of the screening bucket, and a slide groove matching with the support blocks is connected to the top of the box body. The screening bucket is supported and connected to the top of the box body through the support blocks. The slide groove is provided to provide space for the position change of the support block when the screening bucket rotates.

[0011] Furthermore, a No. 1 motor cooperating with the transmission shaft is upwardly connected to the top of the box body to provide power for the rotation of the transmission shaft, and a No. 2 motor cooperating with the support shaft is externally connected to the end of the impurity removal channel away from the screening bucket to provide power for the rotation of the support shaft.

[0012] Furthermore, an inclined plate is connected to one side of the sand storage cabinet, so that the sand falling into the sand storage cabinet is concentrated on the outlet side, which is convenient for the subsequent removal of the sand.

[0013] 3. Beneficial Effects

[0014] Compared with the prior art, the utility model has the advantages that a fast-rotating screening bucket is arranged in the device, and the fine sand is thrown out and the coarse sand is retained through the centrifugal effect provided by the rotation of the screening bucket, thereby realizing relatively effective sand material screening processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the appearance and structure of a sand screening device for construction engineering. Figure 1 .

[0016] Figure 2 This is a schematic diagram of the appearance of a sand screening device for construction engineering. Figure 2 .

[0017] Figure 3 This is a schematic diagram of the internal structure of a sand screening device for construction engineering. Figure 1 .

[0018] Figure 4 This is a schematic diagram of the internal structure of a sand screening device for construction engineering. Figure 2 .

[0019] Figure 5 yes Figure 1 Schematic diagram of the local structure.

[0020] Figure 6 yesFigure 3 Schematic diagram of the local structure

[0021] As shown in the figure: 1. Box body, 2. Screening bin, 3. Collection part, 4. Screening hopper, 5. Support block, 6. Slide groove, 7. Support frame, 8. Driven shaft, 9. Chain groove chain drive mechanism, 10. Drive shaft, 11. First motor, 12. Hopper, 13. Sand storage cabinet, 14. Solenoid valve, 15. Waste discharge channel, 16. Support shaft, 17. Spiral blade, 18. Discharge port, 19. Second motor, 20. Inclined plate Specific implementation mode

[0022] The following further elaborates on the present utility model in conjunction with the attached drawings

[0023] Embodiment 1

[0024] Combined with the attached Figure 1-2 To solve the above technical problems, the technical solution provided by the present utility model is: A sand screening device for construction engineering, including a box body 1, a screening bin 2 is connected and arranged inside the box body 1, a hopper 12 that cooperates with the screening hopper 4 is connected and arranged above the box body 1, which is convenient for putting the sand to be screened into the screening hopper 4, and as much as possible to avoid the sand directly entering the space of the box body 1 outside the screening hopper 4 during the putting process. A sand storage cabinet 13 that cooperates with the screening bin 2 is connected and arranged at the bottom of the box body 1. An inclined plate 20 is connected and arranged on one side of the sand storage cabinet 13, so that the sand falling into the sand storage cabinet 13 is concentrated on the outlet side, which is convenient for removing the sand subsequently. A discharge port 18 that communicates with the screening bin 2 is connected and arranged downward on one side of the box body 1

[0025] The screening bin 2 provides a place for the refined screening treatment of the sand for construction engineering. Through the hopper 12, the sand to be screened is sent into the device. The fine sand after screening is temporarily collected and placed through the sand storage cabinet 13, and the coarse sand after screening is discharged through the discharge port 18

[0026] Embodiment 2

[0027] Combined with the attached Figure 1-6, a screening hopper 4 is rotatably connected inside the box body 1 located in the screening bin 2. A support frame 7 is connected to the top of the screening hopper 4. A driven shaft 8 is connected upward to the support frame 7. A transmission shaft 10 is rotatably connected upward to the top of the box body 1. A first motor 11 that cooperates with the transmission shaft 10 is connected upward to the top of the box body 1 to provide power for the rotation of the transmission shaft 10. The top of the transmission shaft 10 extends outside the box body 1 and is commonly connected to a chain-slot chain transmission mechanism 9 between the driven shaft 8. A plurality of support blocks 5 are connected outward to the top of the screening hopper 4. A chute 6 that cooperates with the support blocks 5 is connected to the top of the box body 1. The screening hopper 4 is supported and connected inside the top of the box body 1 through the support blocks 5. Through the arrangement of the chute 6, space is provided for the position transformation of the support blocks 5 when the screening hopper 4 rotates. A solenoid valve 14 is connected to the bottom end of the screening hopper 4. When opened, the sand material in the screening hopper 4 can fall into the lower waste discharge channel 15 under the action of gravity. A collecting part 3 that cooperates with the screening hopper 4 is connected to the box body 1 below the screening bin 2. A waste discharge channel 15 is connected to the bottom of the screening hopper 4. A support shaft 16 is rotatably connected inside the waste discharge channel 15. A second motor 19 that cooperates with the support shaft 16 is connected to the outside of one end of the waste discharge channel 15 away from the screening hopper 4 to provide power for the rotation of the support shaft 16. A spiral blade 17 is connected to the support shaft 16. The discharge port 18 is arranged at the bottom of one end of the waste discharge channel 15 extending outside the box body 1.

[0028] The screening hopper 4 bears the sand material to be screened. Under the action of the transmission shaft 10 driving the driven shaft 8 to rotate, the screening hopper 4 rotates rapidly in the screening bin 2. Through the centrifugal force, the finer sand grains are thrown out from the gaps on the side wall of the screening hopper 4 and fall into the lower sand storage cabinet 13 below. The sand material that cannot pass through the fine slits on the screening hopper 4 remains in the screening hopper 4, thus achieving the screening effect. The waste discharge channel 15 located below the screening hopper 4 and communicating with it drives the threaded blade to rotate through the support shaft 16, and discharges the coarse material remaining in the screening hopper 4 through the discharge port 18.

[0029] When the utility model is specifically implemented and the device is used to roughly and finely screen the sand materials for construction, the sand materials are put into the screening hopper 4 from the funnel 12 at the top of the box body 1. By operating the first motor 11, under the action of a series of transmission mechanisms, the screening hopper 4 carrying the sand materials rotates rapidly in the screening bin 2 of the box body 1. Through the centrifugal force generated by the rotation, the fine sand that can pass through the gaps on the wall of the screening hopper 4 is thrown out of the hopper into the box and falls into the storage sand cabinet 13 below for placement, so as to quickly and effectively separate the fine sand from the sand materials. The coarse sand remaining in the screening hopper 4, after the screening is completed, the solenoid valve 14 at the bottom end of the screening hopper 4 is opened, and it falls into the impurity discharge channel 15 due to gravity. A screw conveyor mechanism is provided in the impurity discharge channel 15. Under the action of this mechanism, the coarse sand gradually moves towards the outside of the box body 1 and finally is discharged from the discharge port 18 at the end of the impurity discharge channel 15.

[0030] The above description of the utility model and its implementation manner is not restrictive. What is shown in the drawings is only one of the implementation manners of the utility model, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and, without departing from the creative purpose of the utility model, design similar structural modes and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the utility model.

Claims

1. A sand screening device for construction engineering, comprising a box (1), a screening bin (2) connected to the box (1), a sand storage cabinet (13) matched with the screening bin (2) connected to the bottom of the box (1), a discharge port (18) connected downwardly to one side of the box (1) and communicating with the screening bin (2), characterized in that: The box body (1) is located in the screening bin (2) and is rotatably connected to a screening bucket (4); a support frame (7) is connected to the top of the screening bucket (4); a driven shaft (8) is connected upward to the support frame (7); a transmission shaft (10) is rotatably connected to the top of the box body (1); a chain groove chain transmission mechanism (9) is connected between the top of the transmission shaft (10) extending to the outside of the box body (1) and the driven shaft (8); a collecting portion (3) cooperating with the screening bucket (4) is connected to the box body (1) below the screening bin (2); a debris discharge channel (15) is connected to the bottom of the screening bucket (4); a support shaft (16) is rotatably connected in the debris discharge channel (15); a spiral blade (17) is connected to the support shaft (16); and the discharge port (18) is arranged at the bottom of one end of the debris discharge channel (15) extending to the outside of the box body (1).

2. A sand screening device for construction engineering according to claim 1, characterized in that: A funnel (12) matched with a screening bucket (4) is connected to the top of the box body (1), and a solenoid valve (14) is connected to the bottom end of the screening bucket (4).

3. The sand screening device for construction engineering according to claim 1, characterized in that: The top of the screening bucket (4) is connected outwardly with a plurality of support blocks (5), and the top of the box body (1) is connected with a slide groove (6) matched with the support blocks (5).

4. The sand screening device for construction engineering according to claim 1, characterized in that: A first motor (11) matched with a transmission shaft (10) is connected upwardly to the top of the box body (1), and a second motor (19) matched with a support shaft (16) is externally connected to the end of the impurity removal channel (15) away from the screening bucket (4).

5. The sand screening device for construction engineering according to claim 1, characterized in that: A sloping plate (20) is connected to one side of the sand storage cabinet (13).

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