Stone separator

Abstract

The utility model discloses a stone separator which comprises a base support, a screen body, a speed reducer and a discharging hopper. The screen body comprises a rotating shaft, a plurality of fixing supports and a screen mesh. The screen is provided with a plurality of screen holes; the reducer is connected with the rotating shaft; a feeding port and a discharging port are formed in the two ends of the screen body respectively. The height of the feed port is lower than that of the discharge port; the discharge hole is connected with the blanking hopper; the screen body is further provided with a spiral piece which is used for conveying broken stones entering the mortar from the feeding port to the discharging port in an inclined upward mode, and remaining mortar penetrates through the screen holes to be discharged. Gravel in mortar is screened out through the screen cloth of the screen body, remaining mortar can be discharged out of the screen body through the gravity of the remaining mortar, the gravel in the screen body can be driven by the spiral piece to spirally move upwards in an inclined mode from bottom to fall into the discharging hopper, then the gravel and the mortar are separated, the whole structure of the device is simple, and cost is low. The occupied space is small.

Description

Technical Field

[0001] This utility model relates to the field of separation equipment technology, and in particular to a stone separator. Background Technology

[0002] Concrete is an engineering composite material that binds aggregates together with cementitious materials. It typically refers to cement concrete, made by mixing cement as the cementitious material, sand and gravel as aggregates, and water in a specific ratio. During concrete production and construction, mixer trucks and transport vehicles need to be washed regularly, producing slurry that is highly alkaline, with a pH value reaching 12. Indiscriminate discharge of this slurry can pollute the environment. Simultaneously, the slurry contains aggregates such as crushed stone and fine sand, which can be recycled. Traditional crushed stone separation equipment requires different mechanisms for screening and discharging crushed stone, resulting in a complex overall structure and a large footprint.

[0003] Therefore, it is necessary to provide a stone separator to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of this invention is to provide a stone separator that improves upon the problem that traditional stone separation equipment has a complex overall structure and occupies a large space.

[0005] To achieve the above objectives, this utility model provides a stone separator for separating crushed stone from concrete washing slurry, comprising: a base support and a screen body, a reducer and a feeding hopper, all disposed on the base support;

[0006] The screen body includes a rotating shaft, a plurality of fixed supports sleeved on the rotating shaft and arranged in parallel at intervals, and a screen mesh covering the outer periphery of the plurality of fixed supports; the screen mesh has a plurality of screen holes, the screen holes being configured such that fine sand in the slurry can pass through, while gravel cannot pass through; the reducer is connected to the rotating shaft to drive the screen body to rotate around the rotating shaft;

[0007] The screen body has a feed inlet and a discharge outlet at its two ends, respectively; the height of the feed inlet is lower than the height of the discharge outlet; the discharge outlet is connected to the hopper.

[0008] The screen body is also provided with spiral blades, the outer spiral line of which abuts against the screen mesh, for conveying the crushed stone entering the slurry from the feed inlet obliquely upward to the discharge outlet, and allowing the remaining slurry to pass through the screen holes and be discharged.

[0009] In a preferred embodiment, the base bracket is provided with a first bearing seat on the side near the feed inlet and a second bearing seat on the side near the discharge outlet; the height of the first bearing seat is lower than the height of the second bearing seat; the two ends of the rotating shaft are respectively inserted into the bearings of the first bearing seat and the second bearing seat.

[0010] In a preferred embodiment, it further includes:

[0011] The side flushing pipeline includes a main flushing line and two flushing branches connected to the main flushing line. The two flushing branches are respectively arranged on the left and right sides of the screen body. Each flushing branch is provided with multiple water spray holes, so as to flush the screen below through the water spray holes.

[0012] In a preferred embodiment, the base support is further provided with a guide trough located below the screen body, the guide trough being inclined downward to guide the slurry screened out by the screen body to discharge.

[0013] In a preferred embodiment, a speed reducer support is provided on the base bracket, and the speed reducer is mounted on the speed reducer support.

[0014] In a preferred embodiment, the top of the base support is further provided with a plurality of roller supports, each roller support having a roller on the side away from the base support, and the rollers are rotatably connected to the outer surface of the screen body.

[0015] In a preferred embodiment, each of the fixed supports includes a fixed block sleeved on the rotating shaft, a plurality of connecting rods radially connected to the fixed block along the rotating shaft, and a fixed ring connected to one end of the plurality of connecting rods away from the fixed block; the screen is simultaneously covered and fixed to the outside of all the fixed rings, or the screen is divided into multiple pieces, with each piece of screen having its two ends fixed to two adjacent fixed rings respectively.

[0016] In a preferred embodiment, the sieve body further includes multiple fixed rods parallel to the rotating shaft; the fixed rods are simultaneously connected to multiple fixed rings; the outer helix of the spiral blade is connected to the fixed rods and / or the fixed rings.

[0017] In a preferred embodiment, the inner helix of the spiral blade is spaced apart from the surface of the rotating shaft.

[0018] The stone separator provided by this utility model uses a screen to screen out the gravel in the slurry. The remaining slurry (mortar) containing fine sand is discharged from the screen by its own gravity, while the gravel inside the screen moves obliquely upwards from the bottom under the action of the spiral blades and falls into the hopper, thus achieving the separation of gravel and mortar. The screening and transportation of gravel are both achieved through the screen body, making the overall structure of the equipment simple and space-saving. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A perspective view of the stone separator provided by this utility model;

[0021] Figure 2 for Figure 1 The image shows a longitudinal half-sectional view of the stone separator.

[0022] Figure 3 for Figure 1 A three-dimensional view of the screen body and side flushing pipeline in the stone separator shown;

[0023] Figure 4 for Figure 1 The diagram shows an exploded three-dimensional view of the screen body in the stone separator.

[0024] The diagram is labeled as follows: 100, stone separator; 10, base support; 11, first bearing seat; 12, second bearing seat; 13, reducer support; 14, guide chute; 15, idler roller support; 16, idler roller.

[0025] 20. Screen body; 201. Feed inlet; 202. Discharge outlet; 21. Rotating shaft; 22. Fixed bracket; 221. Fixing block; 222. Connecting rod; 223. Fixing ring; 224. Fixing rod; 23. Screen mesh; 24. Spiral blade;

[0026] 30. Reducer; 40. Feed hopper; 50. Side flushing pipeline; 51. Flushing main pipeline; 52. Flushing branch pipeline. Detailed Implementation

[0027] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are merely for explaining the present utility model and are not intended to limit the present utility model.

[0028] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0029] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0030] In an embodiment of this utility model, a stone separator 100 is provided for separating gravel from concrete washing slurry and collecting the gravel.

[0031] like Figures 1-4 As shown, the stone separator 100 includes: a base support 10 and a screen body 20, a reducer 30 and a hopper 40, all of which are disposed on the base support 10.

[0032] Specifically, the sieve body 20 includes a rotating shaft 21, a plurality of fixed supports 22 sleeved on the rotating shaft 21 and arranged in parallel at intervals, and a sieve mesh 23 covering the outer periphery of the plurality of fixed supports 22.

[0033] The screen body 20 has a feed inlet 201 and a discharge outlet 202 at its two ends. The height of the feed inlet 201 is lower than the height of the discharge outlet 202. The discharge outlet 202 is connected to the hopper 40. Slurry containing crushed stone and fine sand enters the screen body 20 through the feed inlet 201, and then the crushed stone is discharged from the discharge outlet 202 and falls into the hopper 40.

[0034] The base support 10 has a first bearing seat 11 on the side near the feed inlet 201 and a second bearing seat 12 on the side near the discharge outlet 202. The two ends of the rotating shaft 21 are respectively inserted into the bearings of the first bearing seat 11 and the second bearing seat 12. The height of the first bearing seat 11 is lower than the height of the second bearing seat 12, so that the rotating shaft 21 is tilted.

[0035] In an embodiment of this invention, the screen 23 is provided with multiple screen holes (not shown in the figure). The screen holes can be designed with corresponding hole spacing according to different sizes of crushed stone. That is, the screen holes are configured such that fine sand in the slurry can pass through, while crushed stone cannot. Therefore, fine sand and water in the screen body 20 will pass through the screen holes of the screen 23 and fall below the screen body 20, while the crushed stone will remain inside the screen body 20.

[0036] The reducer 30 is connected to the rotating shaft 21 to drive the screen body 20 to rotate around the rotating shaft 21. The base bracket 10 is equipped with a reducer support 13, and the reducer 30 is mounted on the reducer support 13. The reducer 30 is a motor drive device with a reduction gearbox, which can be connected to the rotating shaft 21 via a coupling or other structure to drive the rotating shaft 21 to rotate, thereby controlling the rotation speed of the screen body 20.

[0037] In this embodiment, the screen body 20 is also provided with spiral blades 24. The spiral blades 24 have a spirally arranged plate-like structure, that is, the scanning path of the cross-section of the spiral blades 24 is a spiral line. Further, the inner spiral line of the spiral blades 24 is spaced apart from the surface of the rotating shaft 21. The outer spiral line of the spiral blades 24 abuts against the screen mesh 23, which is used to obliquely convey the crushed stone entering the slurry from the feed port 201 to the discharge port 202, and to allow the remaining mortar to pass through the screen holes and be discharged. That is, when the spiral blades 24 rotate with the screen body 20, they force the crushed stone to continuously roll from bottom to top along the spiral direction in the groove formed by the spiral blades 24, so that the crushed stone moves obliquely upward, while the mortar falls downward, thereby achieving the effect of separating the crushed stone and the mortar.

[0038] Furthermore, the base support 10 is also provided with a guide trough 14 located below the screen body 20. The guide trough 14 is set at an angle downward to guide the slurry screened out by the screen body 20 to discharge, thereby facilitating the collection of slurry and making it convenient for subsequent fine sand and water separation processes.

[0039] Furthermore, each fixed bracket 22 includes a fixed block 221 sleeved on the rotating shaft 21, a plurality of connecting rods 222 radially connected to the fixed block 221 along the rotating shaft 21, and a fixed ring 223 simultaneously connected to one end of the plurality of connecting rods 222 away from the fixed block 221. The screen 23 simultaneously covers and is fixed to the outside of all the fixed rings 223; or the screen 23 is divided into multiple pieces, and the two ends of each piece of screen 23 are respectively fixed to two adjacent fixed rings 223, so that the screen 23 is located on the cylindrical surface of the screen body 20.

[0040] The screen body 20 also includes multiple fixing rods 224 parallel to the rotating shaft 21. The fixing rods 224 are simultaneously connected to multiple fixing rings 223 to strengthen the fixing strength of the fixing rings 223 and prevent the fixing rings 223 from tilting axially. At this time, the outer helix of the spiral blade 24 is connected to the fixing rods 224 and / or the fixing rings 223, thereby strengthening the fixing strength of the spiral blade 24.

[0041] In one embodiment, combined Figure 1 and Figure 3 As shown, the stone separator 100 also includes a side flushing pipe 50. The side flushing pipe 50 includes a main flushing pipe 51 and two flushing branches 52 connected to the main flushing pipe 51. The two flushing branches 52 are respectively spaced on the left and right sides of the screen body 20. Each flushing branch 52 has multiple water spray holes (not shown in the figure), which are angled upwards toward the bottom left and right sides of the screen body 20, thereby flushing the mortar below the screen 23 through the water spray holes, which can reduce the mortar concentration and enhance the separation effect and efficiency.

[0042] Furthermore, the top of the base support 10 is also provided with several roller supports 15. Each roller support 15 has a roller 16 on the side away from the base support 10. The roller 16 is rotatably connected to the outer surface of the screen body 20, thereby providing support force to the screen body 20 from both sides and improving the stability of the screen body 20 when rotating. In addition, since the roller 16 rolls relative to the outer surface of the screen body 20, it can clean the outer side of the screen mesh 23 to a certain extent, preventing large fine sand from clogging the screen holes.

[0043] In summary, the stone separator 100 provided by this utility model uses the screen 23 of the screen body 20 to screen out the crushed stone in the slurry. The remaining slurry (mortar) containing fine sand is discharged from the screen body 20 by its own gravity, while the crushed stone inside the screen body 20 moves obliquely upward from the bottom spiral under the drive of the spiral blades 24, thus falling into the discharge hopper 40, thereby achieving the separation of crushed stone and mortar. The screening and transportation of crushed stone are both achieved through the screen body 20, making the overall structure of the equipment simple and space-saving.

[0044] This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.

Claims

1. A stone separator for separating stones from a concrete wash slurry, characterized in that, The application relates to a sand and mortar separating device. The device comprises a base support, a screen body, a speed reducer and a lower hopper, which are all arranged on the base support. The screen body comprises a rotating shaft, a plurality of fixed supports which are arranged in parallel and at intervals on the rotating shaft, and a screen mesh which is wrapped around the outer periphery of the fixed supports. The screen mesh is provided with a plurality of screen holes which are configured to allow fine sand in slurry to pass through but not allow gravel to pass through. The speed reducer is connected with the rotating shaft to drive the screen body to rotate around the rotating shaft.

2. The stone separator of claim 1, wherein, The screen body is provided with an inlet and an outlet at two ends thereof.

3. The stone separator of claim 1, wherein, The height of the inlet is lower than that of the outlet. The outlet is connected with the lower hopper.

4. The stone separator of claim 1, wherein, The screen body is further provided with a spiral blade.

5. The stone separator of claim 1, wherein, The outer spiral line of the spiral blade abuts against the screen mesh to obliquely upwardly convey the gravel in slurry from the inlet to the outlet and make the remaining mortar pass through the screen holes and be discharged.

6. The stone separator of claim 1, wherein, The base support is provided with a first bearing seat on one side close to the inlet and a second bearing seat on one side close to the outlet.

7. The stone separator of claim 1, wherein, The height of the first bearing seat is lower than that of the second bearing seat.

8. The stone separator of claim 7, wherein, The two ends of the rotating shaft are respectively arranged in bearings of the first bearing seat and the second bearing seat.

9. The stone separator of claim 8, wherein, The device further comprises: A side flushing pipeline which comprises a flushing main pipeline and two flushing branch pipelines which are in communication with the flushing main pipeline and are arranged at left and right sides of the screen body at intervals. Each of the flushing branch pipelines is provided with a plurality of water injection holes so as to flush the lower side of the screen mesh through the water injection holes. The base support is further provided with a material guide groove which is arranged obliquely downward to guide the mortar screened by the screen body to be discharged. The base support is further provided with a speed reducer support on which the speed reducer is arranged. The top of the base support is further provided with a plurality of supporting roller supports. Each of the supporting roller supports is provided with a supporting roller on the side away from the base support. The supporting roller is rollingly connected to the outer surface of the screen body. Each of the fixed supports comprises a fixed block which is arranged on the rotating shaft, a plurality of connecting rods which are connected to the fixed block in the radial direction of the rotating shaft, and a fixed ring which is connected to the ends of the connecting rods away from the fixed block. The screen mesh is wrapped on the outer sides of all the fixed rings or is divided into a plurality of pieces, and the two ends of each piece of the screen mesh are fixed to two adjacent fixed rings. The screen body further comprises a plurality of fixed rods which are parallel to the rotating shaft. The fixed rods are connected to the fixed rings. The inner spiral line of the spiral blade is arranged at intervals on the surface of the rotating shaft.

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