Sand separator

Abstract

The utility model discloses a sand separator which comprises a base, an upper inclined hopper, a screen body, a speed reducer and a lower inclined hopper, wherein the upper inclined hopper, the screen body, the speed reducer and the lower inclined hopper are arranged on the base; a first fixing frame and a second fixing frame are arranged on the base; the screen body comprises a rotating shaft, a plurality of fixing supports and a screen mesh. The side, close to the first end, of the screen body communicates with an outlet of the upper inclined hopper. The second end part is rotationally connected to the second fixing frame and is connected with the speed reducer; the side, close to the second end, of the screen body communicates with an inlet of the lower inclined hopper. The first end portion is higher than the second end portion. The speed reducer drives the screen body to rotate, and the first end part is higher than the second end part, so that liquid in slurry water entering the screen body through the upper inclined hopper penetrates through the screen to flow out, the screening efficiency is improved through continuous rotation of the screen body, the phenomenon that the screen is blocked by accumulated fine sand is avoided, and finally the screened fine sand is discharged through the lower inclined hopper. Fine sand is convenient to collect, the whole structure is simple, and cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to separating equipment technical field, especially a sand separator. BACKGROUND

[0002] Concrete is the engineering composite material that cementing material will aggregate cement into whole, usually refers to the cement that is used as cementing material, sand, stone is aggregate, with water according to certain proportion, is obtained after stirring cement concrete

[28] . In the concrete production and construction process, the mixer truck and transport vehicle need to be washed regularly, the slurry water produced has strong alkalinity, the pH value can reach 12, if it is discharged at will, it can cause pollution to the environment, at the same time, the aggregate is contained in the slurry water, these aggregates can be recycled. Fine sand as the important component of concrete, its recycling is important to reduce cost and protect the environment. However, the separation efficiency of the traditional sand separator is only 50%-60%, the fine sand in the slurry water cannot be effectively recycled, the needs of production are met, and the equipment structure is complex, and the cost is high.

[0003] Therefore, it is necessary to provide a sand separator to overcome the above defects. SUMMARY

[0004] The utility model aims at providing a sand separator, which aims at improving the problems of complex structure and high cost of traditional separation equipment.

[0005] In order to realize the above-mentioned purpose, the utility model provides a sand separator for separating fine sand in slurry water, which comprises a base and an upper inclined hopper, a screen body, a speed reducer and a lower inclined hopper all arranged on the base.

[0006] The base is provided with a first fixing frame and a second fixing frame.

[0007] The screen body comprises a rotating shaft, a plurality of fixed supports arranged in parallel and spaced apart on the rotating shaft and a screen mesh wrapped around the outer periphery of the plurality of fixed supports; the two ends of the rotating shaft are defined as a first end and a second end.

[0008] The first end is rotatably connected to the first fixing frame, and the side of the screen body close to the first end is communicated with the outlet of the upper inclined hopper; the second end is rotatably connected to the second fixing frame and connected with the speed reducer; the side of the screen body close to the second end is communicated with the inlet of the lower inclined hopper.

[0009] The first end is higher than the second end, so that the liquid in the slurry water entering the screen body through the upper inclined hopper flows out through the screen mesh, and the screened fine sand is discharged through the lower inclined hopper.

[0010] In a preferred embodiment, the first fixed frame is provided with a first bearing seat, and the first end portion is fixedly arranged in the first bearing seat; the second fixed frame is provided with a second bearing seat, and the second end portion is fixedly arranged in the second bearing seat.

[0011] In a preferred embodiment, the first bearing seat is further provided with a first baffle in a circular shape, and the edge of the first baffle is arranged in a spaced manner with the inner wall of the screen.

[0012] In a preferred embodiment, the second fixed frame is provided with a second baffle, and the second baffle is provided with a avoiding hole for the rotating shaft to pass through; the second baffle is communicated with the inlet of the lower hopper, so as to guide the fine sand screened out by the screen body into the lower hopper.

[0013] In a preferred embodiment, the base is provided with a torsion arm fixing seat, and the speed reducer is arranged on the torsion arm fixing seat.

[0014] In a preferred embodiment, each of the fixed supports comprises a fixed block arranged on the rotating shaft, a plurality of connecting rods connected to the fixed block in a radial direction of the rotating shaft, and a fixed ring connected to the plurality of connecting rods away from the fixed block; the screen is fixed on the outside of all the fixed rings, or the screen is divided into a plurality of pieces, and each piece of the screen is fixed at two ends thereof on two adjacent fixed rings.

[0015] In a preferred embodiment, the top of the lower hopper is provided with at least one observation port.

[0016] In a preferred embodiment, the bottom of the lower hopper is provided with a plurality of water holes.

[0017] The sand separator provided by the utility model drives the screen body to rotate through the speed reducer, and the first end portion is arranged higher than the second end portion, so that the liquid in the slurry water entering the screen body through the upper hopper flows out through the screen, the screening efficiency is improved through the continuous rotation of the screen body, the fine sand accumulated is prevented from blocking the screen, and finally the screened fine sand is discharged through the lower hopper, the fine sand is conveniently collected, the overall structure is simple, and the cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of the drawings.

[0019] Figure 1The utility model provides a sand separator's perspective view;

[0020] Figure 2 For Figure 1 The sand separator's longitudinal half sectional view is shown in the figure.

[0021] Figure 3 For Figure 1 The sand separator's longitudinal half sectional view is shown in the figure.

[0022] The figure mark: 100, sand separator;10, base;11, first fixed frame;111, first bearing seat;112, first baffle;12, second fixed frame;121, second bearing seat;122, second baffle;13, torsion arm fixed seat;20, upper inclined hopper;30, sieve body;31, rotating shaft;311, first end;312, second end;32, fixed support;321, fixed block;322, connecting rod;323, fixed ring;33, screen;40, speed reducer;50, lower inclined hopper;51, observation port;52, water hole. DETAILED DESCRIPTION

[0023] In order to make the utility model's purpose, technical scheme and beneficial technical effect more clear and obvious, the following is combined with the specific embodiment, and the utility model is further explained in detail.Should understand, the specific embodiment described in the specification is only for explaining the utility model and is not for limiting the utility model.

[0024] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model.As used in the utility model specification and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly dictates otherwise.

[0025] It should also be further understood that the term "and / or" used in the utility model specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0026] In the embodiment of the utility model, a sand separator 100 is provided for separating fine sand in slurry water, thereby recycling fine sand in slurry water after cleaning of concrete.

[0027] As Figures 1-3 The sand separator 100 includes a base 10 and an upper inclined hopper 20, a sieve body 30, a speed reducer 40 and a lower inclined hopper 50 all arranged on the base 10.

[0028] The base 10 is provided with a first fixing frame 11 and a second fixing frame 12. The base 10 is used to be fixed on the ground or the fixing surface of other equipment. The height of the first fixing frame 11 relative to the ground or the surface is higher than the height of the second fixing frame 12.

[0029] The screen body 30 comprises a rotating shaft 31, a plurality of fixed supports 32 which are arranged in parallel and spaced apart on the rotating shaft 31, and a screen mesh 33 which is wrapped around the outer periphery of the plurality of fixed supports 32. The screen mesh 33 collectively encloses a hollow cylindrical structure, and is provided with screen holes which allow water flow but not fine sand to pass through. The fine sand here refers to solid sand particles with a particle size exceeding a preset size. The rotating shaft 31 is used to drive the screen body 30 to rotate as a whole around itself, so that the slurry water continuously rolls on the screen mesh 33, avoiding the blockage of the screen mesh 33 caused by the accumulation of fine sand.

[0030] The fixed supports 32 are used to be fixed on the rotating shaft 31 and provide support for the screen mesh 33. Further, each fixed support 32 is in the form of a planar support structure perpendicular to the rotating shaft 31, and comprises a fixed block 321 which is sleeved on the rotating shaft 31, a plurality of connecting rods 322 which are connected to the fixed block 321 in the radial direction of the rotating shaft 31, and a fixed ring 323 which is connected to the ends of the plurality of connecting rods 322 away from the fixed block 321. In one implementation structure, the screen mesh 33 is wrapped and fixed on the outside of all the fixed rings 323. In another implementation structure, the screen mesh 33 is divided into a plurality of pieces, and the two ends of each piece of the screen mesh 33 are fixed on two adjacent fixed rings 323 respectively.

[0031] In this embodiment, the two ends of the rotating shaft 31 are defined as a first end portion 311 and a second end portion 312 respectively.

[0032] Specifically, the first end portion 311 of the rotating shaft 31 is rotationally connected to the first fixing frame 11, and the side of the screen body 30 close to the first end portion 311 is in communication with the outlet of the upper chute 20. Therefore, the slurry water entering from the upper chute 20 will enter the screen body 30 and fall on the screen mesh 33. The second end portion 312 of the rotating shaft 31 is rotationally connected to the second fixing frame 12 and connected to the speed reducer 40. The side of the screen body 30 close to the second end portion 312 is in communication with the inlet of the lower chute 50. Therefore, the fine sand after screening will gradually accumulate at the lower end of the screen body 30, and then be discharged through the lower chute 50.

[0033] The speed reducer 40 is a conventional electrode driving device with a reduction gearbox, which can drive the rotating shaft 31 to rotate around its own central axis, thereby driving the screen body 30 to rotate. Further, the base 10 is provided with a torsion arm fixing seat 13, and the speed reducer 40 is arranged on the torsion arm fixing seat 13. The torsion arm of the torsion arm fixing seat 13 can stably transmit the torque generated by the speed reducer 40 to the base or load, ensuring smooth and efficient power transmission. It can also absorb the vibration and impact generated during operation, reducing the impact force on the speed reducer 40 and the load. It can also help to reduce the centering deviation of the rotating shaft 31.

[0034] In combination Figure 3 As shown, the first end portion 311 is higher than the second end portion 312, so that the liquid in the slurry entering the screen body 30 through the upper inclined chute 20 flows out through the screen mesh 33, and the screened fine sand flows out through the lower inclined chute 50. At this time, no additional power device is needed to drive the fine sand to move in the screen body 30. The fine sand can move from the upper inclined chute 20 to the lower inclined chute 50 only by its own gravity.

[0035] Specifically, the first fixed frame 11 is provided with a first bearing seat 111, and the first bearing seat 111 is provided with a bearing. The first end portion 311 is fixedly arranged inside the bearing of the first bearing seat 111. The second fixed frame 12 is provided with a second bearing seat 121, and the second bearing seat 121 is also provided with a bearing. The second end portion 312 is fixedly arranged inside the bearing of the second bearing seat 121. The two bearing seats are connected to the two ends of the rotating shaft 31 respectively, thereby reducing the rotation resistance of the screen body 30.

[0036] Further, the first bearing seat 111 is further sleeved with a first baffle 112 in the shape of a circle. The edge of the first baffle 112 is arranged in a spaced manner with the inner wall of the screen mesh 33, and the size of the spacing can allow water to pass through, but cannot allow fine sand to pass through. By arranging the first baffle 112, the fine sand is prevented from being directly discharged out of the screen body 30 from the side close to the first end portion 311 along with the slurry.

[0037] Further, the second fixed frame 12 is provided with a second baffle 122, and the second baffle 122 is provided with an avoiding hole or avoiding groove for the rotating shaft 31 to pass through. The second baffle 122 is in communication with the inlet of the lower inclined chute 50, so as to guide the fine sand screened out of the screen body 30 into the lower inclined chute 50, avoid the fine sand from touching the mechanism such as the speed reducer 40, and facilitate the collection of the fine sand. In this embodiment, the second baffle 122 is designed integrally with the lower inclined chute 50.

[0038] In this embodiment, at least one observation port 51 is formed in the top of the lower inclined chute 50, so as to facilitate the observation of the movement of the fine sand in the lower inclined chute 50.

[0039] Further, the bottom of the lower hopper 50 is provided with a plurality of water holes 52. The water in the lower hopper 50 can be discharged through the water holes 52, further improving the separation effect of water and sand in the slurry.

[0040] In summary, the sand separator 100 provided by the utility model, through the reduction gear 40 drives the screen body 30 to rotate, and the first end 311 is higher than the second end 312, so that the liquid in the slurry water entering the screen body 30 through the upper hopper 20 flows out through the screen mesh 33, and the screening efficiency is improved through the continuous rotation of the screen body 30, the accumulated fine sand avoids blocking the screen mesh 33, and finally the screened fine sand is discharged through the lower hopper 50, the fine sand is convenient to collect, the overall structure is simple, and the cost is low.

[0041] The utility model is not limited to the description in the specification and the embodiments, so that other advantages and modifications can be easily realized by those skilled in the art, and the utility model is not limited to specific details, representative equipment and the drawing examples shown and described herein without departing from the spirit and scope of the general concept defined by the claims and equivalent ranges.

Claims

1. A sand separator for separating fine sand from slurry water, characterized in that, The utility model relates to a sand screening device, including: a base and an upper inclined hopper, a screen body, a speed reducer and a lower inclined hopper all arranged on the base; the base is provided with a first fixing frame and a second fixing frame; the screen body includes a rotating shaft, a plurality of fixed supports arranged in parallel and spaced apart on the rotating shaft, and a screen mesh wrapped around the outer periphery of the plurality of fixed supports; the two ends of the rotating shaft are defined as a first end and a second end respectively; the first end is rotatably connected to the first fixing frame, and the side of the screen body close to the first end is in communication with the outlet of the upper inclined hopper; the second end is rotatably connected to the second fixing frame and connected to the speed reducer; the side of the screen body close to the second end is in communication with the inlet of the lower inclined hopper; the first end is arranged higher than the second end, so that the liquid in the slurry water passing through the upper inclined hopper into the screen body flows out through the screen mesh, and the fine sand screened out is discharged through the lower inclined hopper.

2. The sand separator of claim 1, wherein, the first fixing frame is provided with a first bearing seat, and the first end is fixedly arranged in the first bearing seat; the second fixing frame is provided with a second bearing seat, and the second end is fixedly arranged in the second bearing seat.

3. The sand separator of claim 2, wherein, the first bearing seat is further provided with a circular first baffle, and the edge of the first baffle is arranged in spaced apart relationship with the inner wall of the screen mesh.

4. The sand separator of claim 2, wherein, the second fixing frame is provided with a second baffle, and the second baffle is provided with a relief hole for the rotating shaft to pass through; the second baffle is in communication with the inlet of the lower inclined hopper to guide the fine sand screened out by the screen body into the lower inclined hopper.

5. The sand separator of claim 1, wherein, the base is provided with a torsion arm fixing seat, and the speed reducer is arranged on the torsion arm fixing seat.

6. The sand separator of claim 1, wherein, each fixed support includes a fixed block arranged on the rotating shaft, a plurality of connecting rods connected to the fixed block in the radial direction of the rotating shaft, and a fixed ring connected to the ends of the plurality of connecting rods away from the fixed block; the screen mesh is wrapped on the outside of all the fixed rings, or the screen mesh is divided into a plurality of pieces, and the two ends of each piece of screen mesh are fixed to two adjacent fixed rings.

7. The sand separator of claim 1, wherein, the top of the lower inclined hopper is provided with at least one observation port.

8. The sand separator of claim 1, wherein, the bottom of the lower inclined hopper is provided with a plurality of water through holes.

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