CN112791866A

CN112791866A - Sorting equipment with gravel and sand is selected separately function

Info

Publication number: CN112791866A
Application number: CN202110126828.1A
Authority: CN
Inventors: 陈明建; 刘三豆; 陈明群
Original assignee: Shenzhen Bridge Maintenance Equipment Technology Co ltd
Current assignee: Shenzhen Bridge Maintenance Equipment Technology Co ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-05-14

Abstract

The invention relates to the technical field of building construction, and discloses a sorting device with a sand and stone sorting function, which comprises a multi-stage sand separating device, a sand discharging device and a collecting tank; the multi-stage sand separating device comprises a screening mechanism, a rotational flow sand separating mechanism and a material conveying system; the material screening mechanism is used for screening large-particle sand and medium-particle sand, the rotational flow sand separating mechanism comprises at least one cyclone, the cyclone is used for screening small-particle sand, and the material conveying system is used for conveying the sand to be screened to the material screening mechanism and the rotational flow sand separating mechanism respectively; the sand outlet device comprises a discharge chute and a vibrator; the collecting tank is arranged below the discharge tank. The application provides a pair of sorting facilities with gravel and sand is selected separately function can separate out large granule gravel and sand, medium grain gravel and sand and small granule gravel and sand, has realized separating the screening to the gravel and sand of multiple not unidimensional, has improved the screening efficiency of gravel and sand greatly.

Description

Sorting equipment with gravel and sand is selected separately function

Technical Field

The invention relates to the technical field of building construction, in particular to a sorting device with a sand and stone sorting function.

Background

A fluid cyclone is a common type of separation and fractionation equipment. The basic principle of the cyclone is to separate two-phase or multi-phase mixtures with certain density difference, such as liquid-liquid, liquid-solid, liquid-gas, etc., under the action of centrifugal force. The mixed liquid tangentially enters into the cyclone under certain pressure to produce high speed rotating flow field inside the cylindrical cavity. The components with high density in the mixture simultaneously move downwards along the axial direction under the action of the cyclone field, move outwards along the radial direction, move downwards along the wall of the cone section when reaching the cone section, and are discharged from the bottom flow port, so that an outer vortex flow field is formed; the component with low density moves towards the central axis direction, and forms an inner vortex moving upwards in the axis center and then is discharged from the overflow port, thus achieving the aim of separating two phases.

The sand separator is also called a vibrating screen, and is a machine specially designed for screening stones in a stone yard. The sand separating machine has wide application range, almost relates to the aspects of life, and needs various types of vibrating screens during processing and manufacturing. The vibrating screen is mainly used in the industries of mines, coal, smelting, building materials, refractory materials, light industry, chemical industry, medicines, foods and the like.

Among the prior art, the sand separator that has gravel and sand separation function need change the screen cloth in different apertures when separating the screening to the gravel and sand of multiple not unidimensional, and the installation of screen cloth is dismantled very troublesome to screening efficiency has been influenced greatly. The cyclone is applied to the sand separator, so that the grading screening of sand and stones with different sizes is realized.

Disclosure of Invention

The invention aims to provide a sorting device with a sand and stone sorting function, and aims to solve the problem that in the prior art, when an existing sand separator is used for separating and screening various kinds of sand and stones with different sizes, the screening efficiency is low.

The present invention is achieved as such, and provides a sorting apparatus having a function of sorting sand and stone, comprising:

the multi-stage sand separating device comprises a screening mechanism, a rotational flow sand separating mechanism and a material conveying system; the material screening mechanism is used for screening large-particle sand and medium-particle sand, the rotational flow sand separating mechanism comprises at least one cyclone, the cyclone is used for screening small-particle sand, and the material conveying system is used for conveying the sand to be screened to the material screening mechanism and the rotational flow sand separating mechanism respectively;

the sand outlet device comprises a discharge chute and a vibrator; the discharging groove is provided with an inclined groove surface for sand and stone to slide freely, the sand and stone screened by the screening mechanism and the rotational flow sand separating mechanism can fall on the inclined groove surface, the inclined groove surface is provided with a plurality of filtering holes, the filtering holes are used for filtering the sand and stone falling on the inclined groove surface, the vibrator is arranged on the discharging groove, and the vibrator is used for enabling the discharging groove to vibrate;

the collecting tank is used for collecting waste materials after the screening mechanism and the cyclone are used for screening sand and stones, the collecting tank is arranged below the discharge chute, and the collecting tank is also used for collecting waste liquid falling from the filtering holes.

Further, sieve material mechanism is including sieve material platform and screen cloth structure, sieve material bench has the netted terminal surface that is used for sieving large granule gravel and sand, the below of netted terminal surface is formed with the inside cavity that the opening faces down, sieve material platform be provided with the feedstock channel that the cavity is linked together, feedstock channel is used for supplying gravel and sand directly drops into in the cavity, screen cloth structure sets up netted terminal surface and feedstock channel's below, screen cloth structure is used for sieving middle granule gravel and sand.

Further, the screen structure extends upwards obliquely along the horizontal direction; and/or the screen structure is resilient so that sand and stones filtered through the screen structure can be bounced off the surface of the screen structure.

Furthermore, the collecting vat sets up screen cloth structure's below, the process waste material after sieve material mechanism screens can be followed in screen cloth structure's the mesh falls into in the collecting vat, sieve material bench is provided with the reposition of redundant personnel door, works as the reposition of redundant personnel door is opened the back, is located screen cloth structure top the cavity with the collecting vat intercommunication, so that be located gravel and sand above screen cloth structure can directly pass through the reposition of redundant personnel door gets into in the collecting vat.

Further, the screening mechanism further comprises a filtering sieve, the filtering sieve is arranged in the cavity and located between the feeding channel and the screen structure, and the filtering sieve is used for filtering sand and stones directly entering the cavity from the feeding channel.

Furthermore, the material conveying system comprises a first conveying pipeline, a first valve arranged on the first conveying pipeline, a second conveying pipeline and a second valve arranged on the second conveying pipeline, the first conveying pipeline is communicated with the cavity through the feeding channel, and the second conveying pipeline is communicated with the cyclone.

Further, the first conveying pipeline and the second conveying pipeline are respectively communicated with the interior of the collecting tank through pipelines.

The cyclone sand separating mechanism further comprises a pressure dividing box, and the cyclone is provided with an input hole for inputting the mud to be separated, a first output hole for outputting sand and stone and one part of fluid and a second output hole for outputting the other part of fluid; the cyclone is communicated with the pressure dividing box through the second output hole, the pressure dividing box is used for bearing fluid output from the second output hole, and the pressure dividing box is communicated with the interior of the collecting tank through a pipeline.

Furthermore, a sand outlet structure is arranged above the collecting tank, the sand outlet structure is provided with a containing cavity used for containing sand and stone and allowing the sand and stone to pass through, one or more sand inlet(s) used for allowing the sand and stone to enter the containing cavity are arranged on the sand outlet structure, the sand inlet(s) are communicated with the first output hole through a pipeline, a plurality of sand outlet(s) which are distributed at intervals and communicated with the containing cavity are further arranged on the sand outlet structure, the sand outlet(s) are used for allowing the sand and stone in the containing cavity to be discharged to the inclined groove surface, and the projection positions of the sand outlet(s) on the inclined groove surface are different.

Furthermore, a cleaning structure is arranged above the collecting tank, the cleaning structure is provided with a plurality of flushing holes for spraying fluid, the sand outlet structure and the cleaning structure are arranged oppositely, and the fluid sprayed from the flushing holes and the sand and stones discharged from the sand outlet are located at the same position, so that the fluid sprayed from the flushing holes can clean and flush the sand and stones discharged from the sand outlet.

Compared with the prior art, the invention mainly has the following beneficial effects:

according to the sorting equipment with the sand and stone sorting function, the screening mechanism and the cyclone sand separating mechanism are arranged, when the sorting equipment is used for separating and screening various kinds of sand and stones with different sizes, large-particle sand and stones, medium-particle sand and stones and small-particle sand and stones can be separated, the separation and the screening of various kinds of sand and stones with different sizes are realized, and the screening efficiency of the sand and stones is greatly improved; meanwhile, the vibrator is arranged on the discharge chute, so that the vibrator can drive the discharge chute to vibrate together, and the discharge chute vibrates in the discharging process, so that the silt falling on the inclined end surface can be dispersed and fall off from the inclined chute surface, and the effect of uniform discharging is achieved, and the problem that the silt falling on the inclined chute surface is accumulated to influence the sand discharging efficiency is effectively solved; moreover, once the silt on the inclined groove surface is accumulated, the silt needs to be manually cleaned, so that the trouble of manual cleaning is saved, and the silt discharging efficiency of the sorting equipment is greatly improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a sorting apparatus with a sand and stone sorting function according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a multi-stage sand separating device in a sorting apparatus with a sand and stone sorting function according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a screening mechanism in a sorting apparatus with a sand and stone sorting function according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a screening mechanism in a sorting apparatus with a sand and stone sorting function according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a screen structure in a sorting device with a sand and stone sorting function according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a cyclone sand separating mechanism in a sorting device with a sand and stone sorting function according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a sand outlet device in a sorting device with a sand and stone sorting function according to an embodiment of the invention;

fig. 8 is a schematic structural diagram of a sand discharging structure in a sorting device with a sand and stone sorting function according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a cleaning structure in a sorting device with a sand and stone sorting function according to an embodiment of the present invention.

Reference numerals: 1-a multistage sand separating device, 2-a sand discharging device, 3-a collecting tank, 11-a screening mechanism, 12-a rotational flow sand separating mechanism, 13-a material conveying system, 21-a discharging tank, 22-a vibrator, 23-a sand discharging structure, 24-a cleaning structure, 111-a screening table, 112-a screen structure, 113-a filtering screen, 121-a cyclone, 122-a partial pressure tank, 131-a first conveying pipeline, 132-a second conveying pipeline, 211-an inclined groove surface, 212-a filtering hole, 213-a blocking wall, 231-a sand outlet, 232-a fixed part, 241-a flushing hole, 1111-a net-shaped end surface, 1112-a cavity, 1113-a feeding channel, 1114-a material receiving groove, 1121-a first screen layer, 1122-an elastic part and 1123-a second screen layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

The following describes the implementation of the present invention in detail with reference to specific embodiments.

Referring to fig. 1, fig. 1 is a schematic structural diagram illustrating a sorting apparatus with a sand and stone sorting function according to the present invention, and referring to fig. 2 and fig. 7, the sorting apparatus with a sand and stone sorting function according to the present embodiment includes a multi-stage sand separating device 1, a sand discharging device 2, and a collecting tank 3; the multi-stage sand separating device 1 comprises a screening mechanism 11, a rotational flow sand separating mechanism 12 and a material conveying system 13; the screening mechanism 11 is used for screening large-particle sand and medium-particle sand, the cyclone sand separating mechanism 12 comprises at least one cyclone 121, the cyclone 121 is used for screening small-particle sand, and the material conveying system 13 is used for conveying the sand to be screened to the screening mechanism 11 and the cyclone sand separating mechanism 12 respectively;

the sand discharging device 2 comprises a discharging groove 21 and a vibrator 22; the discharging groove 21 is provided with an inclined groove surface 211 for allowing sand and stone to freely slide, the sand and stone screened by the screening mechanism 11 and the rotational flow sand separating mechanism 12 can fall on the inclined groove surface 211, the inclined groove surface 211 is provided with a plurality of filtering holes 212, the plurality of filtering holes 212 are used for filtering the sand and stone falling on the inclined groove surface 211, the vibrator 22 is arranged on the discharging groove 21, and the vibrator 22 is used for enabling the discharging groove 21 to vibrate;

the collecting tank 3 is used for collecting waste materials after the screening mechanism 11 and the cyclone 121 screen sand and stones, the collecting tank 3 is arranged below the discharging tank 21, and the collecting tank 3 is also used for collecting waste liquid falling from the filtering holes 212.

According to the sorting equipment with the sand and stone sorting function, the screening mechanism 11 and the cyclone sand separating mechanism 12 are arranged, when the sorting equipment is used for separating and screening various kinds of sand and stones with different sizes, large-particle sand and stones, medium-particle sand and stones and small-particle sand and stones can be separated, the separation and the screening of various kinds of sand and stones with different sizes are realized, and the screening efficiency of the sand and stones is greatly improved; meanwhile, the vibrator 22 is arranged on the discharge chute 21, so that the vibrator 22 can drive the discharge chute 21 to vibrate together, and in the discharging process, the discharge chute 21 vibrates, so that silt falling on the inclined end face can be dispersed and slide off from the inclined chute face 211, and the effect of uniform discharging is achieved, and the problem that the silt falling on the inclined chute face 211 is accumulated to influence the sand discharging efficiency is effectively solved; moreover, once the silt on the inclined groove surface 211 is accumulated, the silt needs to be manually cleaned, so that the trouble of manual cleaning is saved, and the silt discharging efficiency of the sorting equipment is greatly improved.

Of course, the sorting device with the sand and stone sorting function can be used not only for sand and stone screening, but also for a plurality of fields such as mineral separation and material classification, and the invention is not limited to this.

In the present application, the structure of the vibrator 22 and the cyclone 121 is conventional in the art, and the present invention will not be described herein.

Referring to fig. 2-6, as an embodiment of the present invention, the material sieving mechanism 11 includes a material sieving table 111 and a screen structure 112, the material sieving table 111 has a mesh-shaped end surface 1111 for sieving large-particle gravel and sand, an internal cavity 1112 with a downward opening is formed below the mesh-shaped end surface 1111, the material sieving table 111 is provided with a feeding channel 1113 communicated with the cavity 1112, the feeding channel 1113 is used for directly feeding gravel and sand into the cavity 1112, the screen structure 112 is disposed below the mesh-shaped end surface 1111 and the feeding channel 1113, and the screen structure 112 is used for sieving medium-particle gravel and sand.

The particle sizes of the large-particle sand and stone, the medium-particle sand and stone and the small-particle sand and stone are reduced in sequence, the particle size of the large-particle sand and stone is larger than the mesh diameter of the net-shaped end face 1111, the particle size of the medium-particle sand and stone is between the mesh diameter of the net-shaped end face 1111 and the mesh diameter of the screen structure 112, and the particle size of the small-particle sand and stone is smaller than the mesh diameter of the screen structure 112.

The aperture size of the meshes on the net-shaped end surface 1111 is changed according to requirements, so that large-particle sand stones with different sizes can be screened out; the aperture size of the meshes of the screen mesh structure 112 is changed according to requirements, so that medium-sized sand stones with different sizes can be screened out; the cyclone sand separating mechanism 12 can separate small sand particles from the slurry screened by the screening mechanism 11, and certainly, the cyclone sand separating machine can also separate sand particles from the slurry not screened by the screening mechanism 11.

In this embodiment, the mesh diameter of the mesh end surface 1111 is larger than the mesh diameter of the screen structure 112.

As an embodiment of the present invention, the screen structure 112 extends obliquely upward in the horizontal direction; and/or the screen structure 112 may be resilient so that sand and stones filtered by the screen structure 112 may be ejected from the surface of the screen structure 112. Thus, the sand and stones left above the screen structure 112 after being screened by the screen structure 112 can automatically slide down along the inclined plane of the screen structure 112, and the sand and stones are prevented from remaining on the screen structure 112, so as to block the meshes of the screen structure 112; furthermore, sand falling from within the cavity 1112 onto the screen structure 112, which is larger than the mesh of the screen structure 112, can be knocked off by the screen structure 112, thereby more effectively preventing the sand from depositing on the screen structure 112.

Referring to fig. 5, in the present embodiment, the screen structure 112 includes a first screen layer 1121, a plurality of elastic members 1122, and a second screen layer 1123, wherein the plurality of elastic members 1122 are disposed between the first screen layer 1121 and the second screen layer 1123, and one end of the elastic member 1122 is connected to the first screen layer 1121, and the other end is connected to the second screen layer 1123.

Preferably, the elastic member 1122 includes a spring. Of course, the elastic member 1122 may have other specific elastic structures.

Referring to fig. 3 and 4, as an embodiment of the present invention, the net-shaped end surface 1111 extends obliquely upward in a horizontal direction. Thus, the sand and stone left above the net-shaped end surface 1111 after being screened by the net-shaped end surface 1111 can automatically slide down along the inclined net-shaped end surface 1111, and the sand and stone is prevented from remaining on the net-shaped end surface 1111, so that the meshes of the net-shaped end surface 1111 are blocked.

Preferably, a material receiving groove 1114 is arranged at the bottom of the net-shaped end surface 1111 along the extending direction of the net-shaped end surface 1111. The material receiving groove 1114 can collect the sand and stones which automatically slide down along the inclined net-shaped end surface 1111, so that the workers can carry the sand and stones conveniently.

Referring to fig. 4, as an embodiment of the present invention, the material sieving mechanism 11 further includes a filter sieve 113; a filter screen 113 is disposed within the cavity 1112 and between the feed channel 1113 and the screen structure 112, the filter screen 113 being adapted to filter sand and stone thrown directly into the cavity 1112 from the feed channel 1113. The filter sieve 113 can function to filter impurities. For example, when the above-mentioned sorting apparatus is used to separate sand and stone from slurry, impurities contained in the slurry can be filtered by the filter screen 113, and workers only need to clean the filter screen 113 periodically or aperiodically.

As an embodiment of the present invention, the collecting tank 3 is disposed below the screen structure 112, the waste materials screened by the screening mechanism 11 can fall into the collecting tank 3 from the meshes of the screen structure 112, the screening platform 111 is provided with a diversion gate, and when the diversion gate is opened, the cavity 1112 above the screen structure 112 is communicated with the collecting tank 3, so that the sand and stone above the screen structure 112 can directly enter the collecting tank 3 through the diversion gate. The collection tank 3 is capable of recovering the remaining mixture (for example, water and gravel, etc.) falling from the meshes of the screen structure 112, when the screen structure 112 performs normal separation screening work on the gravel; when the screen structure 112 is blocked and excessive sand is deposited above the screen structure 112, the sand deposited above the screen structure 112 can be discharged into the collecting tank 3 by opening the diverter gate. The siltation can effectually be prevented to the top of screen cloth structure 112 in the design of reposition of redundant personnel door for sorting facilities with gravel and sand selects separately the function has better practicality.

In this embodiment, the feeding system 13 includes a first delivery pipe 131, a first valve disposed on the first delivery pipe 131, a second delivery pipe 132, and a second valve disposed on the second delivery pipe 132, wherein the first delivery pipe 131 is communicated with the cavity 1112 through a feeding channel 1113, and the second delivery pipe 132 is communicated with the cyclone 121.

Preferably, the first and

second delivery ducts

131, 132 are respectively in communication with the inside of the collection tank 3 by means of a duct. Thus, the slurry which is screened by the screening mechanism 11 and falls into the collecting tank 3 can be conveyed to the cyclone 121 by the conveying system 13 through the second conveying pipe, so that the cyclone 121 screens out small-particle sand and stones in the slurry; the mud that falls into in the collection tank 3 through the reposition of redundant personnel door can be carried to cavity 1112 in by conveying system's first pipeline 131 again to realize the secondary screening, can extract valuable gravel and sand in the waste material, practiced thrift resource and cost.

Wherein, according to the kind and the size difference of gravel and sand, can change different collecting vat 3 or place different filling boxes in collecting vat 3.

Referring to fig. 6, in the present embodiment, the cyclone sand separating mechanism 12 further includes a pressure dividing box 122, and the cyclone 121 has an input hole for inputting the slurry to be separated, a first output hole for outputting sand and a part of the fluid, and a second output hole for outputting another part of the fluid; the cyclone 121 is communicated with the partial pressure tank 122 through a second output hole, the partial pressure tank 122 is used for carrying the fluid output from the second output hole, and the partial pressure tank 122 is communicated with the inside of the collecting tank 3 through a pipeline so as to discharge the fluid in the partial pressure tank 122 into the collecting tank 3.

Referring to fig. 7 and 8, as an embodiment of the present invention, a sand outlet structure 23 is disposed above the discharging chute 21, the sand outlet structure 23 has a receiving cavity for receiving sand and stone and allowing the sand and stone to pass through, one or more sand inlets for allowing the sand and stone to enter the receiving cavity are disposed on the sand outlet structure 23, the sand inlets are communicated with the first output hole through a pipeline, a plurality of sand outlets 231 are further disposed on the sand outlet structure 23 and are distributed at intervals and respectively communicated with the receiving cavity, the sand outlets 231 are used for discharging the sand and stone in the receiving cavity onto the inclined chute surface 211, and projection positions of the sand outlets 231 on the inclined chute surface 211 are different.

Wherein, multistage sand separating device 1 can separate out the gravel and sand in the mud, still contains a large amount of water in the gravel and sand of separation out, and the gravel and sand that contains water is held the intracavity through going into husky mouthful entering under the effect of rivers, flows out from a plurality of sand outlets 231 respectively at last.

In this embodiment, through the sand outlet 231 that sets up a plurality of interval arrangements on sand outlet structure 23 for the gravel and sand that gets into and hold the chamber is discharged through a plurality of sand outlet 231 dispersions respectively, thereby effectively avoided because too much gravel and sand from sand outlet 231 exhaust gravel and sand, and cause the accumulational phenomenon of gravel and sand to appear in sand outlet 231's below, saved the trouble of manual cleaning, thereby can improve multistage minute husky device 1's play husky efficiency greatly.

Referring to fig. 8, in the present embodiment, the sand outlet structure 23 is tubular, and the plurality of sand outlets 231 are disposed on the sidewall of the sand outlet structure 23; and/or a plurality of sand outlets 231 are evenly spaced. Like this for the gravel and sand that follow sand outlet 231 is discharged can be more even fall in the below of going out husky structure 23, can prevent effectively that gravel and sand from holding the intracavity siltation, causing sand outlet 231 to block up.

In the present embodiment, the sand inlets are uniformly spaced, and the projections of the sand inlets on the central axis of the sand outlet structure 23 are located between the two projections of the two sand outlets 231 on the central axis of the sand outlet structure 23. Because gravel and sand enters into from a plurality of sand mouths and holds the intracavity respectively, again from holding the chamber free flow to discharge from sand outlet 231, such structural arrangement mode makes the gravel and sand that gets into and hold the intracavity also more even, effectively prevents gravel and sand and siltation in holding the intracavity, leads to out husky structure 23 and takes place to block up.

Of course, the number of sand outlets 231 is greater than the number of sand inlets, so that a more even sand outlet is ensured.

In some embodiments, the sanding structure 23 further comprises a securing portion 232, the securing portion 232 for securing the sanding structure 23 in a specified position. The predetermined position may be on the chute 21 or another position.

Referring to fig. 7 and 9 together, as an embodiment of the present invention, a cleaning structure 24 is further disposed above the discharging chute 21, the cleaning structure 24 has a plurality of flushing holes 241 for spraying fluid, the sand outlet structure 23 is disposed opposite to the cleaning structure 24, and the fluid sprayed from the flushing holes 241 and the sand and stone discharged from the sand outlet 231 are located at the same position, so that the fluid sprayed from the flushing holes 241 can clean and flush the sand and stone discharged from the sand outlet 231. Wherein the fluid may be water or air.

In this embodiment, since the cleaning structure 24 can clean and flush the sand and stone discharged from the sand outlet 231, the sand and stone discharged from the sand outlet 231 can be further dispersed, and the sand and stone can be prevented from being deposited.

Wherein, wash structure 24 and can set to fixed or rotatable formula, rotatable formula wash structure 24 can realize adjusting the position of fluid spun in washing hole 241 to effectively avoid the sand and stone siltation.

Preferably, the sand outlet structure 23 is tubular, and the plurality of sand outlets 231 are arranged on the side wall of the sand outlet structure 23; and/or a plurality of sand outlets 231 are evenly spaced. Of course, the tubular cleaning structure 24 is more convenient in adjusting the position of the fluid ejection in the cleaning hole 241; the sand outlets 231 arranged at regular intervals also enable the fluid sprayed from the washing holes 241 to be evenly flushed below the sand outlets 231, so that sand and stones discharged from the sand outlets 231 are prevented from silting up due to uneven flushing of the fluid.

Preferably, referring to fig. 7, blocking walls 213 are provided at both sides of the discharge chute 21 in a direction extending along the length of the discharge chute 21. Thus, the sand and stone on the inclined groove surface 211 can be prevented from sliding off from both sides of the discharge chute 21 in the process of vibration of the discharge chute 21.

The invention also provides a sand and stone separation method, which is used for separating and screening sand and stones with different sizes by adopting the separation equipment and comprises the following steps:

dropping mud to be screened from the net-shaped end surface 1111 of the screening platform 111, wherein sand and stone with the size smaller than the net holes of the net-shaped end surface 1111 fall into the cavity 1112 of the screening platform 111 from the net holes so as to screen large-particle sand and stone with the size larger than the net holes of the net-shaped end surface 1111, and the sand and stone falling into the cavity 1112 fall onto the net-shaped structure so as to screen medium-particle sand and stone with the size larger than the net holes of the screen structure 112;

mud to be screened is thrown into the cavity 1112 from the feeding channel 1113 through the first conveying pipeline 131, the mud falls onto the screen structure 112, the screen structure 112 can separate and screen the mud, and sand and stones with the size smaller than the meshes of the screen structure 112 fall below the screen structure 112 from the meshes so as to screen medium-particle sand and stones with the size larger than the meshes of the screen structure 112;

the slurry to be screened is conveyed through the second conveying pipe 132 into the cyclone 121, and the cyclone 121 can separate small particles of sand from the slurry.

Referring to fig. 1 and 2, the slurry can be respectively input into the cavity 1112 and the cyclone 121 by respectively controlling the opening and closing of the first valve and the second valve, so as to separate and screen different kinds of sand and stones.

According to the sand and stone sorting method, a plurality of different screening modes can be selected according to different sizes of sand and stone to be screened, and the sand and stone with the size larger than the diameter of the meshes on the net-shaped end surface 1111 can be separated by throwing the slurry to be screened from the upper part of the net-shaped end surface 1111; separating sand and stones having a size larger than the mesh diameter of the screen structure 112 and sand and stones having a size smaller than the mesh diameter of the screen structure 112 by inputting the slurry to be screened from the first conveyance pipe 131 to above the screen structure 112; besides, the mud to be screened can be directly input into the cyclone 121 through the second conveying pipeline 132, and sand and stones in the mud can be separated; the screening function of the sorting equipment is more comprehensive and the application is wider due to various different screening modes.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A sorting apparatus having a sand sorting function, comprising:

2. The sorting equipment with the sand and stone sorting function according to claim 1, wherein the screening mechanism comprises a screening table and a screen structure, the screening table is provided with a net-shaped end surface for screening large-particle sand and stone, an inner cavity with a downward opening is formed below the net-shaped end surface, the screening table is provided with a feeding channel communicated with the cavity, the feeding channel is used for directly feeding sand and stone into the cavity, the screen structure is arranged below the net-shaped end surface and the feeding channel, and the screen structure is used for screening medium-particle sand and stone.

3. The sand and stone separation apparatus having a sand and stone separation function according to claim 2, wherein said screen structure is extended obliquely upward in a horizontal direction; and/or the screen structure is resilient so that sand and stones filtered through the screen structure can be bounced off the surface of the screen structure.

4. The sorting equipment with the sand and stone sorting function according to claim 2, wherein the collecting tank is arranged below the screen structure, waste materials screened by the screening mechanism can fall into the collecting tank from the mesh holes of the screen structure, a shunt door is arranged on the screening platform, and after the shunt door is opened, the cavity above the screen structure is communicated with the collecting tank, so that sand and stone above the screen structure can directly enter the collecting tank through the shunt door.

5. The sorting apparatus having a gravel and sand sorting function of claim 2, wherein the screening mechanism further comprises a filter screen disposed in the cavity between the feed channel and the screen structure, the filter screen being configured to filter gravel and sand directly entering the cavity from the feed channel.

6. The sand and stone separation apparatus as claimed in any one of claims 2 to 5, wherein said feeding system comprises a first feeding pipe, a first valve disposed on said first feeding pipe, a second feeding pipe and a second valve disposed on said second feeding pipe, said first feeding pipe is communicated with said cavity through said feeding passage, and said second feeding pipe is communicated with said cyclone.

7. The sand and stone separation apparatus having a sand and stone separation function according to claim 6, wherein the first conveying pipe and the second conveying pipe are respectively communicated with the inside of the collecting tank through a pipe.

8. The sand and stone separation apparatus having a sand and stone separation function according to claim 6, wherein the cyclone sand separating mechanism further comprises a pressure dividing box, the cyclone has an input hole for inputting the slurry to be separated, a first output hole for outputting the sand and a part of the fluid, and a second output hole for outputting another part of the fluid; the cyclone is communicated with the pressure dividing box through the second output hole, the pressure dividing box is used for bearing fluid output from the second output hole, and the pressure dividing box is communicated with the interior of the collecting tank through a pipeline.

9. The sorting equipment with the function of sorting sand and stone according to claim 8, wherein a sand outlet structure is arranged above the discharge chute, the sand outlet structure is provided with a containing cavity for containing sand and stone and allowing the sand and stone to pass through, the sand outlet structure is provided with one or more sand inlets for allowing the sand and stone to enter the containing cavity, the sand inlets are communicated with the first output hole through pipelines, the sand outlet structure is further provided with a plurality of sand outlets which are distributed at intervals and respectively communicated with the containing cavity, the sand outlets are used for discharging the sand and stone in the containing cavity onto the inclined chute surface, and the projection positions of the sand outlets on the inclined chute surface are different.

10. The sorting equipment with the sand and stone sorting function according to claim 9, wherein a cleaning structure is further arranged above the discharging chute, the cleaning structure is provided with a plurality of flushing holes for jetting fluid, the sand discharging structure is arranged opposite to the cleaning structure, and the fluid jetted by the flushing holes is positioned at the same position as the sand and stone discharged from the sand outlet, so that the fluid jetted by the flushing holes can clean and flush the sand and stone discharged from the sand outlet.