Sand washer for constructional engineering

Abstract

The utility model relates to a sand washer, in particular to a sand washer for constructional engineering, which comprises a sand washing tank, a first baffle, a cylinder, a rack, a brush and the like. A sand washing impeller is rotatably arranged on the sand washing tank, a notch is formed in the right side of the sand washing tank, a first baffle is slidably arranged in the sand washing tank and located below the sand washing impeller, an air cylinder and a rack are arranged on the two front-back symmetrical outer walls of the sand washing tank, and the rack and the first baffle are both connected with the movable end of a piston rod of the air cylinder. A brush is rotationally arranged on the upper portion of the inner side of the sand washing tank and is in contact fit with the top of the first baffle. The fine sand falling back from the sand washing impeller is collected through the first baffle, the rack and the first baffle are driven by the piston rod of the air cylinder to horizontally move, the gear is driven by the rack to rotate, the washed sand on the first baffle is swept to the filter screen when the gear drives the brush to rotate, and the washed sand is screened again through the filter screen.

Description

Technical Field

[0001] The utility model relates to a sand washing machine, in particular to a sand washing machine for construction engineering. Background Art

[0002] Sand washing machine is a water-washing sand washing equipment used in conjunction with sand making machine. Bucket sand washing machine (also known as Ferris wheel sand washing machine) can wash away trace amounts of stone powder and impurities from the mixed sand produced by the sand making machine, thereby improving the quality of the sand. It is widely used in sand and gravel fields, mining, building materials, transportation, chemical industry, water conservancy and hydropower, concrete mixing stations and other industries for washing materials.

[0003] The existing wheel bucket sand washing machine scoops the sand and gravel mixed in the sand washing trough into the filter bucket through rotation. As the sand washing impeller rotates, the moisture in the sand and gravel in the filter bucket will be filtered out, and the filtered sand and gravel will be discharged during the rotation and descent. When the volume of the sand and gravel is smaller than the mesh of the filter, the fine sand and gravel will fall back into the sand washing trough. When the sand and water in the sand washing trough are discharged, the fine sand and gravel will be discharged together with the sand and water, thus resulting in a waste of sand and gravel resources.

[0004] Based on this, it is necessary to design a sand washing machine for construction projects that can re-screen the fallen fine sand. Utility Model Content

[0005] The technical solution is as follows: A sand washing machine for construction projects includes a sand washing trough, a cylinder, a first baffle, a rack, a gear, a brush and a screening assembly. A sand washing impeller is rotatably provided on the sand washing trough, and a notch is provided on the right side of the sand washing trough. A first baffle is slidingly provided inside the sand washing trough, and the first baffle is located below the sand washing impeller. A cylinder and a rack are provided on the front and rear symmetrical outer walls of the sand washing trough. The rack and the first baffle are both connected to the movable end of the cylinder piston rod. A brush is rotatably provided on the upper inner part of the sand washing trough, and the brush contacts and cooperates with the top of the first baffle. Both ends of the brush pass through the side walls of the sand washing trough and extend out of the sand washing trough, and the extended ends are connected with gears, which mesh with the rack. A screening assembly is provided in the sand washing trough for re-screening the sand and gravel collected by the first baffle.

[0006] Preferably, a second baffle is provided on the right side of the top of the first baffle, and the second baffle is provided on the outside of the sand washing tank.

[0007] Preferably, the screening assembly includes a mouth-shaped frame, a filter screen and a third baffle. A mouth-shaped frame is slidingly provided on the lower inner side of the sand washing trough, a filter screen is provided on the mouth-shaped frame, and a third baffle is provided on the right outer wall of the sand washing trough. The bottom of the third baffle is slidably fitted with the top of the mouth-shaped frame.

[0008] Preferably, a gap is left between the third baffle and the notch on the right side of the sand washing trough.

[0009] Preferably, the stroke of the cylinder piston rod is consistent with the length of the rack and the length of the first baffle.

[0010] Preferably, it also includes a limit plate, a spring and a limit rod. The left side of the mouth frame is slidably connected to the limit rod through a sliding groove. The limit plate is connected to the limit rod, and a spring is wound around the limit rod.

[0011] Preferably, the length of the limiting plate is greater than the length of the notch on the right side of the sand washing trough.

[0012] The beneficial effects of the utility model are as follows: the fine sand and gravel falling back from the sand washing impeller are collected by the first baffle, the rack and the first baffle are driven horizontally by the cylinder piston rod, the gear is driven to rotate by the rack, and the gear drives the brush to rotate to sweep the washed sand on the first baffle onto the filter screen, and the washed sand is screened again by the filter screen; the mouth frame is moved horizontally, and the washed sand screened on the filter screen is collected by the cooperation of the third baffle and the mouth frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the cylinder, first baffle, rack, gear, brush and second baffle of the utility model.

[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the gear and brush of the utility model.

[0016] Figure 4 It is a three-dimensional structural diagram of the mouth frame, filter screen, third baffle and limit plate of the utility model.

[0017] Figure 5 It is a three-dimensional structural diagram of the mouth frame, filter screen, limit plate, spring and limit rod of the utility model.

[0018] Figure 6 It is a schematic diagram of the three-dimensional structure of the limiting plate, spring and limiting rod of the utility model.

[0019] Figure numbers: 1. Sand washing trough, 2. Cylinder, 21. First baffle, 22. Rack, 23. Gear, 24. Brush, 3. Second baffle, 4. Rack, 41. Filter, 42. Third baffle, 5. Limit plate, 51. Spring, 52. Limit rod. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Embodiment: A sand washing machine for construction engineering, such as Figure 1 、 Figure 2 and Figure 3 As shown, it includes a sand washing trough 1, a cylinder 2, a first baffle 21, a rack 22, a gear 23, a brush 24 and a screening assembly. A sand washing impeller is rotatably provided on the sand washing trough 1, and a net bag for scooping and filtering sand and gravel is provided on the sand washing impeller. A gap is opened on the right side of the sand washing trough 1, and a first baffle 21 is slidingly provided on the lower inner side of the sand washing trough 1. The first baffle 21 is set at an appropriate position below the sand washing impeller to collect fine sand that may fall back after being processed by the sand washing impeller; a cylinder 2 and a rack 22 are provided on the two symmetrical outer walls of the sand washing trough 1. The stroke of the piston rod of the cylinder 2 is proportional to the length of the rack 22 and the first baffle. The lengths of 21 are consistent, the lower part of the rack 22 and the front and rear ends of the first baffle 21 are connected to the movable end of the piston rod of the cylinder 2, and a brush 24 is rotatably provided on the upper inner part of the sand washing trough 1. The brush 24 contacts and cooperates with the top of the first baffle 21. The horizontal movement of the first baffle 21 and the rotational movement of the brush 24 sweep the fine sand on the first baffle 21 to the bottom of the first baffle 21. The two ends of the brush 24 extend from the front and rear walls of the sand washing trough 1 and are respectively connected to a gear 23. The gear 23 is meshed with the rack 22. A screening component is provided in the sand washing trough 1 for re-screening the sand and gravel collected by the first baffle 21.

[0022] like Figure 1 and Figure 2 As shown, a second baffle 3 is provided on the right side of the top of the first baffle 21. The second baffle 3 is provided on the outside of the sand washing trough 1. The second baffle 3 is used to block the fine sand rolled up when the brush 24 rotates, preventing the fine sand from being swept to the outside of the sand washing trough 1, thereby effectively recovering and reusing fine sand resources.

[0023] like Figure 4 and Figure 5 As shown, the screening assembly includes a mouth frame 4, a filter screen 41 and a third baffle 42. A mouth frame 4 is slidingly provided on the lower inner side of the sand washing trough 1, and a filter screen 41 is provided on the mouth frame 4. A third baffle 42 is provided on the right outer wall of the sand washing trough 1. The bottom of the third baffle 42 slides with the top of the mouth frame 4. When the mouth frame 4 moves to the right, the third baffle 42 acts as a scraper to scrape off the fine sand on the filter screen 41. There is a gap between the third baffle 42 and the notch on the right side of the sand washing trough 1. As the mouth frame 4 slides to the right, the fine sand below the filter screen 41 is blocked by the third baffle 42 and falls through the gap between the two.

[0024] like Figure 5 and Figure 6 As shown, it also includes a limit plate 5, a spring 51 and a limit rod 52. The left side of the mouth frame 4 is slidably connected to the limit rod 52 through a slide groove. The limit plate 5 is connected to the limit rod 52. The length of the limit plate 5 is greater than the length of the gap on the right side of the sand washing trough 1. The design of the limit plate 5 ensures that it will not cross the gap on the right side of the sand washing trough 1, thereby limiting the movement range of the mouth frame 4. A spring 51 is wound around the limit rod 52.

[0025] During use, the sand and gravel in the sand washing trough 1 are scooped into the filter screen 41 bucket through the sand washing impeller, and the fine sand and gravel fall back onto the first baffle 21. The extension and contraction movement of the piston rod of the cylinder 2 drives the rack 22 and the first baffle 21 to move horizontally in the left and right directions. Since the rack 22 is engaged with the gear 23, when the rack 22 moves horizontally, it drives the gear 23 to rotate, and the rotation of the gear 23 drives the brush 24 to rotate synchronously. When the first baffle 21 moves to the right, the brush 24 rotates clockwise to sweep the sand and gravel on the first baffle 21 to the left, thereby avoiding sweeping the sand and gravel to the outside of the sand washing trough 1; the sand and gravel swept by the brush 24 falls onto the filter screen 41 for re-screening. After the screening is completed, the mouth frame 4 is pulled to the right. Due to the sliding of the third baffle 42 and the mouth frame 4 In coordination, when the mouth frame 4 moves to the right, the third baffle 42 blocks the sand and gravel screened out from the filter screen 41. As the mouth frame 4 slides to the right, the fine sand under the filter screen 41 is blocked by the third baffle 42 and falls through the gap between the two, thereby collecting the sand and gravel on the filter screen 41; when the mouth frame 4 moves to the right, the limit plate 5 moves synchronously with the mouth frame 4. When the limit plate 5 contacts the inner wall of the sand washing trough 1, the sand washing trough 1 blocks the limit plate 5, and the limit rod 52 moves to the left along the slide groove of the mouth frame 4 and compresses the spring 51; after the tension of the mouth frame 4 is released, under the action of the elastic force of the spring 51, the limit rod 52, the limit plate 5 and the mouth frame 4 are reset, and then the mouth frame 4 is pushed to the left to realize the function of all-round reset of the mouth frame 4, the limit rod 52 and the limit plate 5.

[0026] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A sand washing machine for construction engineering, comprising a sand washing trough (1), a sand washing impeller rotatably provided on the sand washing trough (1), a notch being provided on one side of the sand washing trough (1), and characterized in that: The sand washing tank (1) further comprises a cylinder (2), a first baffle (21), a rack (22), a gear (23), a brush (24) and a screening assembly. The first baffle (21) is slidingly arranged inside the sand washing tank (1). The first baffle (21) is located below the sand washing impeller. The other two symmetrical outer walls of the sand washing tank (1) are provided with a cylinder (2) and a rack (22). The rack (22) and the first baffle (21) are both connected to the movable end of the piston rod of the cylinder (2). A brush (24) is rotatably arranged on the upper inner side of the sand washing tank (1). The brush (24) contacts and cooperates with the top of the first baffle (21). Both ends of the brush (24) pass through the side wall of the sand washing tank (1) and extend out of the sand washing tank (1). The extended ends are both connected with a gear (23). The gear (23) is meshed with the rack (22). A screening assembly for re-screening the sand and gravel collected by the first baffle (21) is provided in the sand washing tank (1).

2. A sand washing machine for construction engineering according to claim 1, characterized in that: A second baffle (3) is provided on the right side of the top of the first baffle (21), and the second baffle (3) is provided on the outside of the sand washing tank (1).

3. A sand washing machine for construction engineering according to claim 1, characterized in that: The screening assembly comprises a mouth frame (4), a filter screen (41) and a third baffle (42); the mouth frame (4) is slidably provided at the lower inner side of the sand washing trough (1); the filter screen (41) is provided on the mouth frame (4); the third baffle (42) is provided on the right outer wall of the sand washing trough (1); the bottom of the third baffle (42) is slidably matched with the top of the mouth frame (4).

4. A sand washing machine for construction engineering according to claim 3, characterized in that: A gap is left between the third baffle (42) and the notch on the right side of the sand washing trough (1).

5. A sand washing machine for construction engineering according to claim 4, characterized in that: The stroke of the piston rod of the cylinder (2) is consistent with the length of the rack (22) and the length of the first baffle (21).

6. A sand washing machine for construction engineering according to claim 5, characterized in that: The invention also comprises a limit plate (5), a spring (51) and a limit rod (52); the left side of the mouth frame (4) is slidably connected to the limit rod (52) through a sliding groove; the limit rod (52) is connected to the limit plate (5); and the limit rod (52) is wound with a spring (51).

7. A sand washing machine for construction engineering according to claim 6, characterized in that: The length of the limiting plate (5) is greater than the length of the notch on the right side of the sand washing trough (1).

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