CN217616083U - Grit belt cleaning device - Google Patents

Abstract

The application relates to a sand and stone cleaning device which comprises a sewage pool, an inclined vibrating screen plate, a waterproof vibrating motor and a spraying assembly; the effluent water sump is used for collecting the sewage that forms after washing the grit, the slope shake the sieve slope set up in the top of effluent water sump, waterproof vibrating motor install in the slope shakes the face of sieve, waterproof vibrating motor is used for driving the slope shakes the sieve shale shaker from attaching to the dust on grit surface, spray assembly install in the top that the slope shakes the sieve, the external water source of spray assembly, spray assembly is used for washing and is located the slope shakes the grit on the sieve board. This application has the effect of improving the relatively poor problem of grit cleaning performance because of rivers and the insufficient grit contact that leads to.

Description

Grit belt cleaning device

Technical Field

The application relates to the field of building material processing equipment, in particular to a sand and stone cleaning device.

Background

The modern building industry usually takes the machine-made sand as a raw material, and stone as a raw material of the machine-made sand contains a small amount of soil, the stone can also generate certain stone powder through violent collision, the machine-made sand with excessive impurity content can not meet the standard of the sand for buildings, and the machine-made sand can reach the standard after being cleaned. A sand cleaning apparatus is an apparatus for cleaning impurities (such as dust) in sand in a machine-made sand production line, and is generally called a sand washer.

The sand and stone cleaning device used at present is generally a wheel type sand washer which comprises a motor, an impeller, a feeding groove and a washing groove, wherein the feeding groove and the washing groove are arranged on the impeller, and an overflow outlet is formed in one side of the washing groove. The working mechanism of the wheel type sand washer is as follows: the motor drives the impeller to rotate slowly, the sandstone enters the washing tank from the feeding tank, rolls under the drive of the impeller and grinds mutually, water is added simultaneously to form strong water flow, and the water flow timely takes away impurities in the sandstone and foreign matters with small specific gravity and discharges from the overflow outlet to finish the cleaning effect.

However, when the wheel type sand washer is used for washing sand, more gravels are accumulated in the washing tank, the gravels at the bottom of the washing tank are not in sufficient contact with water flow, and part of impurities are easy to accumulate in a gravel pile, so that the wheel type sand washer has poor cleaning effect on the gravels.

SUMMERY OF THE UTILITY MODEL

In order to improve because of the not enough relatively poor problem of grit cleaning performance that leads to of rivers and grit contact, this application provides a grit belt cleaning device.

The application provides a grit belt cleaning device adopts following technical scheme:

a sand and stone cleaning device comprises a sewage pool, an inclined vibrating screen plate, a waterproof vibrating motor and a spraying assembly; the effluent water sump is used for collecting the sewage that forms after washing the grit, the slope shake the sieve slope set up in the top of effluent water sump, waterproof vibrating motor install in the slope shakes the face of sieve, waterproof vibrating motor is used for driving the slope shakes the sieve shale shaker from the dust attached to the grit surface, spray assembly install in the top that the slope shakes the sieve, the external water source of spray assembly, spray assembly is used for washing and is located the slope shakes the grit on the sieve board.

Through adopting above-mentioned technical scheme, when wasing the grit, treat that abluent grit is emptyd to the slope and shake on the sieve, start waterproof vibrating motor, waterproof vibrating motor drives the slope and shakes the sieve vibration of the board, the grit shakes the sieve downstream and grinds each other along the slope under the vibration effect of sieve board is shaken in the slope, at the in-process that the grit ground each other, grit and dust separation, start spray assembly simultaneously, spray assembly washes and is located the slope and shakes the grit on the sieve board, rivers drive the dust and pass the slope and shake the sieve inflow sewage sump of sieve, the grit that is washed clean shakes along the slope and shake the sieve board and get into the appointed region of stacking the grit. In this in-process, grit has increased the area with water contact when grinding because of the vibration with the dust initial segregation to make the grit washed cleaner, and then improved the grit cleaning performance relatively poor problem that rivers and grit contact insufficient lead to.

Optionally, still include the tiling board, the tiling board install in the top of slope sieve that shakes, the tiling board with the slope shakes and leaves the clearance that supplies sand stone to pass through between the sieve.

Through adopting above-mentioned technical scheme, the grit is emptyd to the slope and is shaken behind the sieve, because the flat bed board shakes and leaves the clearance with the slope between the sieve, a small amount of grit gets into spray assembly's spraying region through the clearance, evenly lays flatly on the slope shakes on the sieve, has reduced the grit and has shaken the risk of piling up on the sieve in the slope for the contact of grit and rivers is more abundant, thereby makes the grit washed cleaner, and then has improved the cleaning efficiency of grit belt cleaning device to the grit.

Optionally, still include extrusion dewatering mechanism, extrusion dewatering mechanism install in the slope shakes one side that the sieve board is close to ground, extrusion dewatering mechanism is used for the extrusion to accomplish the grit that washes, makes moisture and grit separation in the grit heap.

Through adopting above-mentioned technical scheme, utilize the grit after the extrusion hydroextractor constructs the extrusion, make moisture and grit separation in the grit heap, the grit heap after the dehydration gets into the appointed region of stacking the finished product grit to reduce the grit and influenced the risk of construction environment because of forming ponding when subsequently stacking.

Optionally, the dust collector also comprises a dust collecting cylinder, a packing auger with a shaft and a driving motor; the dust collecting device is characterized in that supporting columns are arranged on the peripheral sides of the dust collecting barrel and used for obliquely erecting the dust collecting barrel on the ground, feed hoppers are arranged on the peripheral sides of the dust collecting barrel, the dust collecting barrel is provided with an open end far away from the ground and a closed end close to the ground, the shaft packing auger is coaxially arranged in an inner cavity of the dust collecting barrel, the driving motor is arranged at the closed end of the dust collecting barrel, and a rotating shaft of the driving motor is coaxially fixed at the end part of the shaft packing auger; the driving motor is used for driving the shaft packing auger to push the sand in the dust collection cylinder out of the opening end of the dust collection cylinder.

Through adopting above-mentioned technical scheme, will treat that abluent grit is emptyd to a dust collection section of thick bamboo in through the feeder hopper, start driving motor, driving motor drives has an axle auger to rotate, with grit from the open end of feeder hopper propelling movement to a dust collection section of thick bamboo, then propelling movement to the slope sieve that shakes, thereby control grit gets into the slope and shakes the flow of sieve, the messenger is emptyd to the slope and shakes the grit on sieve plate surface and can evenly spread out, reduce the grit and shake sieve plate surface accumulational risk in the slope, further improve the area of contact of grit and rivers, thereby further improve the cleaning performance to the grit.

Optionally, still include the cartridge filter, the cartridge filter install in the inner chamber of dust collection tube, the lateral wall of cartridge filter with leave the clearance between the inside wall of dust collection tube, the cartridge filter runs through and has seted up the feed inlet, the lateral wall of feeder hopper mouth connect in the inside wall of feed inlet, the cartridge filter is kept away from the one end of dust collection tube blind end has the opening that supplies the sand stone to pass through, there is an auger coaxial arrangement in the inner chamber of cartridge filter, the cartridge filter runs through and has seted up the filtration pore, it is used for supplying the dust to pass through to filter the pore.

Through adopting above-mentioned technical scheme, grit is at the in-process that grinds each other, and the dust and the grit separation of attached to grit, during the dust process filtration pore entering dust collection tube after the separation to improve the clean degree of grit, makeed grit change in the follow-up cleaning process clear up, thereby improved grit belt cleaning device's cleaning efficiency.

Optionally, there is the auger to have the center pin and be fixed in the helical blade that the center pin was used all around, the week side of center pin is provided with a plurality of stirring vane, and a plurality of stirring vane follow the axial interval of center pin arranges the setting.

Through adopting above-mentioned technical scheme, when having axle auger to rotate, drive the epaxial stirring vane of center and rotate to strengthened the grinding degree between the grit, makeed grit and dust to change in the separation, and then improved spiral separating mechanism's preliminary separation effect to grit and dust.

Optionally, still include the landslide with higher speed, the one end of landslide with higher speed connect in the terminal surface of the open end of cartridge filter, the other end of landslide with higher speed connect in the slope shakes the one side that the effluent water sump was kept away from to the sieve board, the landslide with higher speed is used for guiding the grit to get into the slope shakes the sieve board.

Through adopting above-mentioned technical scheme, the grit is by the one end that has axle auger propelling movement to landslide with higher speed, and the landing is to the slope and shake the sieve board to the slope under the guide of landslide with higher speed, has further reduced the grit and has directly piled up in the slope when getting into the slope and shake the sieve board from the cartridge filter and shake the risk in the clearance of sieve board and flat board.

Optionally, the inboard of effluent water sump is provided with the drainage board, the drainage board separates the inner chamber of effluent water sump for sewage chamber and clear water chamber, the drainage board is used for filtering sewage in the sewage chamber, the sewage chamber set up in the below of slope sieve board that shakes, the clear water chamber is used for storing and provides spray component's water source.

Through adopting above-mentioned technical scheme, be stored in the clear water chamber and provide the clear water at water source for spray assembly, the sewage that has washed the grit flows into the sewage chamber after, in the filtration entering clear water chamber through the water filtering plate, continues to supply to spray the subassembly and wash the grit, has realized the cyclic utilization of water resource.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the mode of combining the vibrating screen plate and the spraying assembly, when the spraying assembly is used for washing the gravel, the vibrating screen plate is used for vibrating the gravel, so that the contact area of the gravel and water flow is increased, the gravel is in full contact with the water flow, the gravel is washed more cleanly, and the problem of poor gravel washing effect caused by insufficient contact of the water flow and the gravel is solved;

2. by arranging the extrusion dehydration mechanism, the sand-rock pile is dehydrated before the sand-rock enters the stacking area, so that the construction environment is not easily influenced by accumulated water formed during the subsequent stacking of the sand-rock;

3. through setting up spiral separation mechanism, separate grit and dust in advance before washing the grit, make the grit more easily by the sanitization in subsequent washing process to grit belt cleaning device's washing sand efficiency has been improved.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic view for showing the structure of the spiral separation mechanism.

Fig. 3 is a schematic structural diagram for showing a vibrating screen flushing mechanism and a squeezing flushing mechanism.

Description of reference numerals: 1. a spiral separation mechanism; 11. a pillar; 12. a dust collecting cylinder; 13. a filter cartridge; 131. a filtration pore; 14. a shaft auger; 141. a central shaft; 142. a helical blade; 143. a stirring blade; 15. a drive motor; 16. a feed hopper; 17. a dust exhaust port; 18. a connecting rod; 2. a vibrating screen flushing mechanism; 21. a sewage tank; 211. a sewage chamber; 212. a clear water cavity; 22. accelerating landslide; 23. inclining the vibrating sieve plate; 24. horizontally vibrating the sieve plate; 25. a spray assembly; 251. a water pump; 252. a main water pipe; 253. a shower pipe; 254. a support frame; 255. a spray head; 26. a water filter plate; 261. water filtering holes; 27. a support wall; 28. flatly paving a plate; 29. a waterproof vibration motor; 3. a squeezing and dewatering mechanism; 31. a support plate; 32. extruding the rolling stones; 33. the motor is extruded.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses grit belt cleaning device.

Referring to fig. 1, the sand cleaning apparatus includes a spiral separation mechanism 1, a vibrating sieve washing mechanism 2, and an extruding-dewatering mechanism 3, wherein the spiral separation mechanism 1 is used to primarily separate dust attached to sand from sand. The vibrating screen washing mechanism 2 is used for washing the sand and stone while vibrating the sand and stone. The extrusion dehydration mechanism 3 is used for extruding the water in the gravel pile washed by the vibrating screen washing mechanism 2.

Referring to fig. 2, the spiral separating mechanism 1 includes a dust collecting cylinder 12, a filter cylinder 13, an auger 14 with a shaft and a driving motor 15, wherein the side wall of the dust collecting cylinder 12 is fixed with a plurality of pillars 11, the pillars 11 incline the dust collecting cylinder 12 to leave the ground, the dust collecting cylinder 12 has an open end far away from the ground and a closed end close to the ground, the side wall of the closed end of the dust collecting cylinder 12 is fixed with a feed hopper 16, the feed hopper 16 and the pillars 11 deviate from each other and are arranged, a dust discharging port 17 is opened on the end face of the closed end of the dust collecting cylinder 12, and the dust discharging port 17 is used for discharging dust in the dust collecting cylinder 12.

Referring to fig. 2, the filter cylinder 13 is coaxially fixed in the inner cavity of the dust collecting cylinder 12, a gap is left between the outer side wall of the filter cylinder 13 and the inner side wall of the dust collecting cylinder 12, the filter cylinder 13 is a tubular structure with two open ends, one end of the filter cylinder 13 is fixed on the end surface of the closed end of the dust collecting cylinder 12, and the other end faces the open end of the dust collecting cylinder 12. The end surface of the filter cylinder 13 far away from the closed end of the dust collecting cylinder 12 is coplanar with the end surface of the open end of the dust collecting cylinder 12. The feed inlet has been seted up to the lateral wall of cartridge filter 13 near the one end on ground, the lateral wall of 16 mouths of hopper of feeder hopper and the inside wall fixed connection of feed inlet. A plurality of filter holes 131 are formed through the periphery of the filter cartridge 13, the filter holes 131 are uniformly distributed on the periphery of the filter cartridge 13, the filter holes 131 are used for dust in the filter cartridge 13 to pass through, a plurality of connecting rods 18 are fixed on the outer side wall of the filter cartridge 13, and one ends of the connecting rods 18 far away from the filter cartridge 13 are fixed on the inner side wall of the dust collection cartridge 12.

Referring to fig. 2, the shaft-equipped auger 14 is coaxially installed in the inner cavity of the filter cylinder 13, the shaft-equipped auger 14 has a central shaft 141 and a helical blade 142 fixed on the peripheral side of the central shaft 141, one end of the central shaft 141 is rotatably connected to the end face of the closed end of the dust collection cylinder 12, a plurality of stirring blades 143 are fixed on the peripheral side of the central shaft 141, the plurality of stirring blades 143 are arranged at intervals along the axial direction of the central shaft 141, the stirring blades 143 are used for stirring sand in the filter cylinder 13, and the edge of the helical blade 142 far away from the central shaft 141 abuts against the inner side wall of the filter cylinder 13. The driving motor 15 is fixed on the end face of the closed end of the dust collecting cylinder 12, and the rotating shaft of the driving motor 15 is connected with the shaft coupling at the end close to the central shaft 141.

Referring to fig. 2, the working process of the spiral separation mechanism 1 is as follows: sandstone enters the cartridge filter 13 from the feed hopper 16, the driving motor 15 is started, the rotation shaft of the driving motor 15 drives the central shaft 141 with the shaft auger 14 to rotate, the central shaft 141 drives the helical blade 142 and the stirring blade 143 to rotate, the rotational helical blade 142 pushes the sandstone to one end of the cartridge filter 13 far away from the ground, in the process of pushing the sandstone by the helical blade 142, the rotational stirring blade 143 makes the sandstone mutually ground, and further makes the dust attached to the sandstone and the sandstone preliminarily separated, the dust enters the dust collection cylinder 12 through the filter hole 131 on the side wall of the cartridge filter 13, because the dust collection cylinder 12 is obliquely arranged, the dust slides down to the dust discharge port 17 under the action of gravity, and is discharged from the dust discharge port 17.

Referring to fig. 3, the vibrating sieve flushing mechanism 2 includes a sewage tank 21, an accelerating landslide 22, an inclined vibrating sieve plate 23, a horizontal vibrating sieve plate 24 and a spraying assembly 25, wherein the sewage tank 21 is a tank body with a rectangular structure, a water filtering plate 26 is fixed on the inner wall of the sewage tank 21, the water filtering plate 26 is used for dividing the inner cavity of the sewage tank 21 into a sewage cavity 211 and a clear water cavity 212, a water filtering hole 261 is formed in the surface of the water filtering plate 26 in a penetrating manner, a supporting wall 27 is fixed at the upper end of the water filtering plate 26, and the height of the upper end of the supporting wall 27 is lower than that of one end, far away from the ground, of the filter cartridge 13.

Referring to fig. 2 and 3, the accelerated slide 22 is obliquely arranged on the wall surface of the support wall 27, one end of the accelerated slide 22 is fixedly connected with one end of the filter cartridge 13 far away from the ground, the other end of the accelerated slide 22 is fixedly connected with the wall surface of the support wall 27, and the accelerated slide 22 is used for guiding the sand and stone pushed out from the filter cartridge 13 to fall to the plate surface of the oblique vibrating screen plate 23.

Referring to fig. 3, the inclined vibrating screen plate 23 is arranged in an inclined manner, one side of the inclined vibrating screen plate 23 is fixedly connected with the upper end of the support wall 27, one side of the inclined vibrating screen plate 23, which is far away from the support wall 27, is fixedly connected with one side of the horizontal vibrating screen plate 24, the side wall of the horizontal vibrating screen plate 24, which is far away from the inclined vibrating screen plate 23, is fixedly connected to the inner side wall of the sewage tank 21, the horizontal vibrating screen plate 24 is horizontally arranged, and a waterproof vibrating motor 29 is fixed on the surface, opposite to the ground, of the inclined vibrating screen plate 23.

Referring to fig. 3, a flat plate 28 is fixed at the top end of the support wall 27, and a gap for sand to pass through is left between the flat plate 28 and the inclined vibrating screen plate 23, so that the sand is uniformly flat on the surface of the inclined vibrating screen plate 23.

Referring to fig. 3, the spray assembly 25 includes a plurality of support brackets 254, a plurality of spray pipes 253, a plurality of spray heads 255, a main water pipe 252 and a water pump 251, the support brackets 254 are fixed to the upper end of the wastewater tank 21, the support brackets 254 are used for erecting the plurality of spray pipes 253 and the main water pipe 252 above the inclined sieve plate 23, the plurality of spray pipes 253 are fixed to the periphery of the main water pipe 252, the inner cavities of the plurality of spray pipes 253 are communicated with the inner cavity of the main water pipe 252, the plurality of spray heads 255 are fixed to the periphery of the plurality of spray pipes 253, the inner cavity of the main water pipe 252 is communicated with the water outlet end of the water pump 251, the water pump 251 is fixed to the plate surface of the water filter plate 26, and the water pump 251 is used for pumping the clean water in the clean water cavity 212 to the spray heads 255.

Referring to fig. 2 and 3, the working process of the vibrating screen flushing mechanism 2 is as follows: the spiral separation mechanism 1 pushes gravels to the accelerated landslide 22, the gravels slide to the joint of the accelerated landslide 22 and the inclined vibrating screen plate 23 under the action of gravity, then the gravels are paved on the surface of the inclined vibrating screen plate 23 under the action of the flat paving plate 28 and the inclined vibrating screen plate 23 through the gap between the flat paving plate 28 and the inclined vibrating screen plate 23, the waterproof vibrating motor 29 is started, the inclined vibrating screen plate 23 vibrates the gravels, the water pump 251 is started simultaneously, clean water in the clean water cavity 212 is pumped to the spray head 255 by the water pump 251, the water sprayed by the spray head 255 washes the gravels on the inclined vibrating screen plate 23, the cleaned water falls into the sewage cavity 211, and is filtered by the water filtering plate 26, the water in the sewage cavity 211 flows into the clean water cavity 212 for storage, and the effect of recycling water utilization is achieved.

Referring to fig. 3, squeeze dewatering constructs 3 and includes two backup pads 31, extrusion stone roll 32 and extrusion motor 33, two backup pads 31 are fixed in the lateral wall that the effluent water sump 21 deviates from each other respectively, backup pad 31 is used for putting up extrusion stone roll 32 off the ground, extrusion stone roll 32 is the stone of cylindrical structure, the both ends of extrusion stone roll 32 rotate respectively and connect in the face that two backup pads 31 are relative, leave the clearance that supplies the grit to pass through between extrusion stone roll 32 and the horizontal vibration sieve plate 24, extrusion motor 33 is fixed in backup pad 31 and keeps away from the face of extrusion stone roll 32, the coaxial tip that is fixed in extrusion stone roll 32 of pivot of extrusion motor 33. Borrow this design, start extrusion motor 33 back, extrusion motor 33's pivot drives the extrusion and rolls stone 32 and rotate, and extrusion and roll stone 32 and level shake sieve plate 24 and mutually support, and the extrusion is located the level and shakes the grit on the sieve plate 24, makes remaining moisture and grit break away from in the gravel pile to make the grit be difficult to influence the construction environment because of forming ponding when subsequently stacking.

The implementation principle of a grit belt cleaning device of this application embodiment does: grit is sent into the cartridge filter 13 through feeder hopper 16, start driving motor 15, center pin 141 begins to rotate under driving motor 15's drive, center pin 141 drives helical blade 142 and rotates, keep away from the one end propelling movement on ground with grit to cartridge filter 13, at the in-process of helical blade 142 propelling movement grit, the grit grinds each other under stirring vane 143's effect, make the dust and the grit that attach to on the grit accomplish initial segregation, the dust of being separated gets into in the dust collection cylinder 12 and is discharged from dust exhaust 17 through filtering hole 131.

Gravel is pushed to cartridge filter 13 and is kept away from the one end on ground after, the guide of landslide 22 with higher speed is fallen down to the slope and is shaken the clearance department between sieve 23 and the tiling 28, gravel gets into the slope and shakes sieve 23 and all paves in the slope under the effect of tiling 28 and shake sieve 23, start waterproof vibrating motor 29, open water pump 251 simultaneously, the slope shakes when sieving the gravel of sieve 23, spray assembly 25 washes the gravel that is located the slope on the sieve 23 that shakes, the rivers of having washed gravel fall into the slope and shake in the sewage chamber 211 of sieve 23 below, the slope shakes the gravel motion on the sieve 23 to the slope and shakes the junction of sieve 23 and horizontal sieve plate 24.

The grit gets into the horizontal sieve that shakes 24 after, starts extrusion motor 33, and extrusion rubble 32 begins to rotate under extrusion motor 33's drive, and extrusion rubble 32 shakes sieve 24 with the level and mutually supports the grit extrusion dehydration, and the grit of accomplishing the dehydration is pushed to the region of stacking finished product grit, falls into the sewage chamber 211 of horizontal sieve 24 below that shakes with the moisture that the grit breaks away from. During sewage in the sewage chamber 211 enters into clear water chamber 212 after filtering through water strainer plate 26, clear water in the clear water chamber 212 washes the grit that is located the slope on the sieve board 23 that shakes through spray assembly 25 to realize the cyclic utilization of water resource, when the clear water in the clear water chamber 212 is not enough, need artificial watering.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a grit belt cleaning device which characterized in that: comprises a sewage pool (21), an inclined vibrating screen plate (23), a waterproof vibrating motor (29) and a spraying assembly (25); effluent water sump (21) are used for collecting the sewage that forms after washing the grit, slope shake sieve board (23) slope set up in the top of effluent water sump (21), waterproof vibrating motor (29) install in the face of slope sieve board (23) shakes, waterproof vibrating motor (29) are used for driving slope sieve board (23) shale shaker is from attaching to the dust on grit surface, spray set spare (25) install in the top of slope sieve board (23) shakes, spray set spare (25) external water source, spray set spare (25) are used for washing and are located the grit on slope sieve board (23) shakes.

2. Sand cleaning apparatus according to claim 1, characterised in that: still include flat board (28), flat board (28) install in the top of slope sieve board (23) of shaking, flat board (28) with the slope shakes and leaves the clearance that supplies the sand stone to pass through between the sieve board (23).

3. Sand cleaning apparatus according to claim 2, characterised in that: the sand-gravel pile washing machine is characterized by further comprising an extrusion dewatering mechanism (3), wherein the extrusion dewatering mechanism (3) is installed at the lowest point of the horizontal position of the inclined vibrating sieve plate (23), and the extrusion dewatering mechanism (3) is used for extruding a sand-gravel pile which is washed.

4. A sand cleaning apparatus according to any one of claims 1 to 3, wherein: also comprises a dust collecting cylinder (12), a packing auger (14) with a shaft and a driving motor (15); the dust collecting device is characterized in that supporting columns (11) are mounted on the peripheral sides of the dust collecting cylinders (12), the supporting columns (11) are used for obliquely erecting the dust collecting cylinders (12) on the ground, feed hoppers (16) are mounted on the peripheral sides of the dust collecting cylinders (12), the feed hoppers (16) are used for guiding gravels to enter the inner cavities of the dust collecting cylinders (12), the dust collecting cylinders (12) are provided with open ends far away from the ground and closed ends close to the ground, shaft packing augers (14) are coaxially mounted in the inner cavities of the dust collecting cylinders (12), driving motors (15) are mounted in the closed ends of the dust collecting cylinders (12), and rotating shafts of the driving motors (15) are coaxially fixed at the ends of the shaft packing augers (14); the driving motor (15) is used for driving the shaft packing auger (14) to push the sand in the dust collection cylinder (12) out of the opening end of the dust collection cylinder (12).

5. Grit cleaning apparatus as claimed in claim 4, wherein: still include cartridge filter (13), cartridge filter (13) install in the inner chamber of dust collection cylinder (12), the lateral wall of cartridge filter (13) with leave the clearance between the inside wall of dust collection cylinder (12), the lateral wall of cartridge filter (13) runs through and has seted up the feed inlet, the lateral wall of feeder hopper (16) fill mouth connect in the inside wall of feed inlet, cartridge filter (13) are kept away from the one end of dust collection cylinder (12) closed end has the opening that supplies the gravel to pass through, there is axle auger (14) coaxial arrangement in the inner chamber of cartridge filter (13), cartridge filter (13) run through and have seted up filtration pore (131), it is used for supplying the dust to pass through to filter pore (131).

6. Sand cleaning apparatus according to claim 5, characterised in that: there is axle auger (14) to have center pin (141) and be fixed in helical blade (142) of center pin (141) week side, the week side of center pin (141) is provided with a plurality of stirring vane (143), and is a plurality of stirring vane (143) are followed the axial interval of center pin arranges the setting.

7. Sand cleaning apparatus according to claim 6, characterised in that: still including landslide (22) with higher speed, the one end of landslide (22) with higher speed connect in the open-ended terminal surface of cartridge filter (13), the other end of landslide (22) with higher speed connect in the slope shakes one side that effluent water sump (21) was kept away from in sieve board (23), landslide (22) with higher speed be used for with the grit that the open end of cartridge filter (13) dropped out guides to the face of slope sieve board (23) that shakes.

8. Sand cleaning apparatus according to claim 1, characterised in that: the inner wall of effluent water sump (21) is provided with drainage board (26), drainage board (26) are separated the inner chamber of effluent water sump (21) for sewage chamber (211) and clear water chamber (212), drainage board (26) are used for filtering sewage in sewage chamber (211), sewage chamber (211) set up in the below of slope sieve board (23) that shakes, clear water chamber (212) are used for storing and provide the water source of spraying subassembly (25).

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