CN211664038U

CN211664038U - Grit conveyer with cleaning device

Info

Publication number: CN211664038U
Application number: CN202020114414.8U
Authority: CN
Inventors: 刘耀越
Original assignee: Xi'an Shuntong Building Materials Co ltd
Current assignee: Xi'an Shuntong Building Materials Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-10-13
Anticipated expiration: 2030-01-17

Abstract

The utility model discloses a grit conveyer with cleaning device relates to transfer apparatus technical field. The technical key points are as follows: including the support frame, two transfer rollers, the belt that the slope set up and drive transfer roller pivoted driving motor, the transfer roller rotates with the support frame to be connected, the belt below is provided with the feed tank, be connected with the delivery pipe on the feed tank, be connected with the working shaft on the delivery pipe, be connected with first delivery pipe on the delivery pipe, be connected with first shower on the first delivery pipe, be connected with a plurality of shower heads on the first shower, one side of feed tank is equipped with the header tank, the header tank is located between the transfer roller of lower one end and the feed tank, be equipped with two spinal branch poles along vertical direction on the header tank, be connected with the connecting rod between the branch, the cover is equipped with the piece that absorbs water on the connecting rod, the piece that absorbs water contacts under surface with the belt, the shower head is towards the piece. The utility model has the advantages of long service life.

Description

Grit conveyer with cleaning device

Technical Field

The utility model belongs to the technical field of transfer apparatus technique and specifically relates to a grit conveyer with cleaning device is related to.

Background

Concrete is a building material with the widest application and the largest use amount in the current building industry. The sand-gravel mixing device plays an irreplaceable role in the construction fields of building engineering, highway engineering, bridge and tunnel engineering, water conservancy and special structures, and sand-gravel is generally required to be conveyed into a concrete mixing device for mixing through a conveying belt in the preparation process of concrete.

The utility model discloses a chinese utility model patent that bulletin number is CN205952851U discloses a grit conveyer belt, and its technical scheme main points are: the automatic conveying device comprises a support frame, a transmission roller, a lower carrier roller and a conveying belt, wherein an upper carrier roller group capable of being matched with the conveying belt is arranged on the support frame, and the upper carrier roller group comprises a carrier roller base, two auxiliary rollers folded upwards and a main roller between the two auxiliary rollers.

The above prior art solution has the following drawbacks: when the conveying belt grit conveys, the grit is mostly river sand, can contain stone, sand, earth and moisture in the river sand, and the conveyer belt is when conveying the grit, along with transfer time's extension, glues sand, earth with many on the conveyer belt, can lead to the conveyer belt to take place to warp in the past for a long time, can skid between transfer roller and the conveyer belt, and life is short.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a grit conveyer with cleaning device, it has long service life's advantage.

The above object of the present invention can be achieved by the following technical solutions:

a sand and stone conveyer with a cleaning device comprises a support frame, two conveying rollers, a belt obliquely arranged and a driving motor for driving the conveying rollers to rotate, wherein the conveying rollers are rotatably connected with the support frame, a rotating shaft of the driving motor is coaxially and fixedly connected with the conveying rollers, a shell of the driving motor is fixedly connected with the support frame, the belt is wound on the periphery of the two conveying rollers, a water supply tank is arranged below the belt, the water supply tank is connected with a water supply pipe, the water supply pipe is connected with a water supply pump, the water supply pipe is connected with a first water supply pipe, the first water supply pipe is connected with a first spray pipe, the first spray pipe is connected with a plurality of spray heads, one side of the water supply tank is provided with a water collecting tank, the water collecting tank is positioned between the conveying roller at the lower end and the water supply tank, and the water collecting tank is provided, be connected with the connecting rod between the branch, the cover is equipped with the piece that absorbs water on the connecting rod, the piece that absorbs water and the contact of belt lower surface, the shower head is towards the piece that absorbs water, the shower head is located between piece and the feed tank that absorbs water.

Through adopting above-mentioned technical scheme, the conveyer belt is when the grit conveying, driving motor drive transfer roller rotates, the transfer roller drives the belt and rotates, the belt and then drives the grit and convey, convey the agitator tank back with the grit, because the grit is mostly that the river sand is more moist, there is the grit of many to adhere on the belt in the data send process, can lead to the conveyer belt to warp, therefore, it cleans to be equipped with the grit that adheres on the belt at the conveyer belt below water absorption piece, the silt that adheres on the belt is cleared up, first shower constantly humidifies the water absorption piece, make things convenient for water absorption piece to clean to silt, the belt can not take place to warp because of adhering the grit, the life of extension belt.

The present invention may be further configured in a preferred embodiment as: one set up flutedly, another one along vertical direction on the branch be connected with the fixed block on the branch, the draw-in groove has been seted up on the fixed block, the one end of connecting rod be connected with recess complex dwang, the axis of dwang sets up along vertical direction, the dwang rotates with the recess to be connected, the connecting rod is towards the one end and the draw-in groove elastic clamping of draw-in groove.

Through adopting above-mentioned technical scheme, after the piece that absorbs water cleans an end time to the lower surface of belt, it has more mud to adhere to on the piece that absorbs water, uses a period of time back in addition, and the piece that absorbs water can be worn and torn, when changing the piece that absorbs water, holds the fixture block of connecting and takes out among the draw-in groove to the piece that absorbs water, then rotates the dwang and will absorb water another one end of piece and shift out from the recess, simple structure, the convenient change to the piece that absorbs water.

The present invention may be further configured in a preferred embodiment as: the collecting box is provided with a brush roller in a rotating mode, the brush roller is in contact with the lower surface of the belt and is parallel to the axis direction of the conveying roller, and the brush roller is located between the first spraying pipe and the conveying roller with the higher end.

Through adopting above-mentioned technical scheme, because before wiping the belt lower surface, the lower surface of belt can adhere a lot of silt, when the piece that absorbs water was cleaned the belt, on the one hand can wipe unclean, on the other hand, can be to the piece wearing and tearing of absorbing water more serious, the life of the piece that absorbs water is short, therefore, the brush roller that is equipped with brushes the silt that the belt lower surface adhered earlier once, then by absorbing water the piece and wiping the belt lower surface, the cleaning efficiency of the silt that adheres to the belt has been improved, the belt can not warp after the silt that adheres to the belt is cleared up, can not skid between transfer rod and the belt, the life of conveyer belt has been prolonged.

The present invention may be further configured in a preferred embodiment as: the water collecting tank is provided with a placing frame, a second water feeding pipe communicated with a water feeding pipe is connected to the placing frame, the second water feeding pipe is communicated with a second spraying pipe, a spraying hole of the second spraying pipe faces to the lower surface of the belt, the axis direction of the second spraying pipe is parallel to the axis direction of the brush roller, and the second spraying pipe is arranged between the conveying roller at the lower end and the water absorbing block.

Through adopting above-mentioned technical scheme, wipe the belt surface back, the lower surface of belt probably still can be stained with some mud, can influence the conveying of belt, consequently, the second shower that is equipped with washs the belt lower surface, washes away the mud that the belt lower surface is stained, weight when having alleviateed the belt conveying, has prevented the skidding between belt and the conveying rod, prolongs the life of conveyer belt.

The present invention may be further configured in a preferred embodiment as: the water collecting tank is obliquely provided with a guide plate above, a guide groove is formed in the guide plate, one end of the guide plate is in contact with the lower surface of the belt, the other end of the guide plate is fixedly connected with the upper surface of the water collecting tank, and the guide plate is arranged between the conveying roller at the lower end and the second spraying pipe.

Through adopting above-mentioned technical scheme, because when surface cleaning under the belt, the belt is slope setting, water after the belt is washd is partly dropped to the header tank that the below set up, partly can be attached to and rotate together with the belt on the belt, therefore, the guide plate that is equipped with can be scraped the water attached to on the one hand on the belt, make water flow into the header tank along the guide plate, on the other hand still the silt that adheres to on the belt after the belt clearance is cleared up, the guiding gutter makes things convenient for in the accurate flow-in header tank of adnexed water on the belt, more thoroughly to the belt clearance, the belt can not receive gravity and warp.

The present invention may be further configured in a preferred embodiment as: the utility model discloses a leather belt conveyor belt, including header tank, place the board, be provided with on the header tank and place the board, be equipped with a plurality of gas blow pipes on placing the board, the gas outlet of gas blow pipe is towards the belt lower surface, the inside of gas blow pipe is provided with electric heating wire, the gas blow pipe is between the transfer roller and the guide plate of lower one end.

Through adopting above-mentioned technical scheme, because after washing the belt, the surface of belt is moist, when the belt was once more to the grit conveying, can adhere silt on the belt, consequently, the gas blow pipe weathers the belt lower surface after the washing, is provided with the heating wire on the gas blow pipe and accelerates the speed of weathering the belt, has avoided adhering silt because of the belt is moist, and the belt can not take place to warp.

The present invention may be further configured in a preferred embodiment as: the water collecting tank is internally provided with a filter screen, the filter screen divides the water collecting tank into an upper cavity and a lower cavity, and the lower cavity is internally provided with a drainage component.

By adopting the technical scheme, when silt adhered to the surface of the brush roller brush belt and muddy water after washing fall to the water collecting tank, the muddy water is filtered by the filter screen, the filtered silt is left on the filter screen of the upper cavity, and the filtered water flows into the lower cavity and is reused, so that the waste of water resources is reduced.

The present invention may be further configured in a preferred embodiment as: the drainage assembly comprises a drainage pipe and a drainage pump, wherein the drainage pump is connected to the drainage pipe, one end of the drainage pipe is communicated with the water collecting tank, and the other end of the drainage pipe is communicated with the water supply tank.

Through adopting above-mentioned technical scheme, when the water yield in the header tank is more, through drain pipe and the drain pump that is equipped with water supply tank in with water drainage, water resource reuse has reduced the cost when clearing up the belt.

To sum up, the utility model discloses a following at least one useful technological effect:

1. by arranging the water absorption block and the first spraying pipe, the water absorption block wipes sediment adhered to the surface of the belt, and the first spraying pipe continuously humidifies the water absorption block, so that the wiping effect of the water absorption block on the belt is improved, the weight of the belt is reduced, the belt cannot deform, the friction force between the belt and the conveying roller is increased, the belt cannot slip, and the service life of the belt is prolonged;

2. the brush roller is arranged to brush away gravels which are adhered to the belt and difficult to clean, so that the water absorption blocks can clean the belt more thoroughly, and the service life of the belt is further prolonged;

3. through setting up second shower, gas blow pipe, electric heating wire, at first spray the belt by the second shower, will adhere grit and mud on the belt and wash, weather by the moisture of the gas blow pipe on to the belt that is equipped with after the washing, electric heating wire has accelerated the blow pipe efficiency of weathering to the belt, under the three combined action, more thoroughly to the grit clearance that adheres on the belt, makes things convenient for the conveyer belt to the conveying of grit.

Drawings

FIG. 1 is a schematic view of the overall construction of a sand conveyor with a cleaning device;

FIG. 2 is a schematic view of a part of a sand conveyor with a cleaning device;

FIG. 3 is a schematic view of the connection structure of the supporting rod, the connecting rod and the water absorption block;

figure 4 is a cross-sectional view of a sand conveyor with a cleaning device taken along a vertical plane of the axis of the feed pipe.

Reference numerals: 1. a support frame; 2. a conveying roller; 3. a belt; 4. a drive motor; 5. a water supply tank; 6. a water supply pipe; 7. a water supply pump; 8. a first water supply pipe; 9. a first shower pipe; 10. a water collection tank; 11. a strut; 12. a connecting rod; 13. a water-absorbing block; 14. a groove; 15. a fixed block; 16. a card slot; 17. rotating the rod; 18. a brush roller; 19. placing a rack; 20. a second water supply pipe; 21. a second shower pipe; 22. a baffle; 23. a diversion trench; 24. placing the plate; 25. an air blowing pipe; 26. an electric heating wire; 27. a filter screen; 28. an upper chamber; 29. a lower chamber; 30. a drain pipe; 31. and (7) draining the pump.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a sandstone conveyer with a cleaning device, which comprises a support frame 1, two conveying rollers 2, a belt 3 arranged obliquely and a driving motor 4 for driving the conveying rollers 2 to rotate, wherein the conveying rollers 2 are rotatably connected with the support frame 1, the rotating shaft of the driving motor 4 is coaxial and welded with the conveying rollers 2, the shell of the driving motor 4 is welded with the support frame 1, the belt 3 is wound around the two conveying rollers 2, a water supply tank 5 is arranged below the belt 3, the water supply tank 5 is connected with a water supply pipe 6, the water supply pipe 6 is connected with a water supply pump 7 (shown in fig. 4), the water supply pipe 6 is communicated with a first water supply pipe 8, the first water supply pipe 8 is communicated with a first spray pipe 9, the first spray pipe 9 is rotatably connected with a plurality of spray heads, one side of the water supply tank 5 is provided with a water collection tank 10, the water collection tank 10 is positioned between, the water collecting tank 10 is welded with two support rods 11 along the vertical direction, a connecting rod 12 is connected between the support rods 11, a water absorbing block 13 is pasted on the connecting rod 12, the water absorbing block 13 is made of sponge, the water absorbing block 13 is in contact with the lower surface of the belt 3, a spray head faces the water absorbing block 13, and the spray head is located between the water absorbing block 13 and the water supply tank 5. When the conveyer belt conveys the grit, driving motor 4 drives the conveyer roller 2 and rotates, conveyer roller 2 drives belt 3 and rotates, belt 3 and then drives the grit and convey, convey the agitator tank back with the grit, because the grit is mostly that the river sand is more moist, there is many silt adhesion on belt 3 in the data send process, can lead to the conveyer belt to warp, therefore, be equipped with water absorption block 13 below the conveyer belt and clean the mud that adheres on belt 3, the silt that adheres on belt 3 is cleared up, 9 shower nozzles of first shower nozzle constantly humidify water absorption block 13 towards water absorption block 13, make things convenient for water absorption block 13 to clean of silt, improve water absorption block 13 and to the effect of cleaning of silt, belt 3 can not take place to warp because of adhering the silt, extension belt 3's life.

Before wiping the lower surface of the belt 3, a lot of silt can be adhered to the lower surface of the belt 3, when the water absorption block 13 wipes the belt 3, on one hand, the water absorption block can not be wiped cleanly, on the other hand, the water absorption block 13 is seriously abraded, and the service life of the water absorption block 13 is short, so that the brush roller 18 is rotatably arranged on the collection box, the length of the brush roller 18 is larger than or equal to the width of the belt 3, the brush roller 18 is in contact with the lower surface of the belt 3 and is parallel to the axial direction of the conveying roller 2, and the brush roller 18 is positioned between the first spray pipe 9 and the conveying roller 2 at the higher end. The brush roller 18 firstly brushes away the silt with strong adhesion on the belt 3, and then the water absorption block 13 wipes the lower surface of the belt 3, so that the cleaning efficiency of the silt adhering to the belt 3 is accelerated, and the silt adhering to the belt 3 can be cleaned more cleanly.

After the surface of the belt 3 is wiped by the water absorption block 13, a lot of mud may adhere to the lower surface of the belt 3 and affect the transmission of the belt 3, therefore, the water collection tank 10 is welded with the placing frame 19, the placing frame 19 is connected with the second water supply pipe 20 communicated with the water supply pipe 6, the second water supply pipe 20 is communicated with the second spraying pipe 21, the spraying hole of the second spraying pipe 21 faces the lower surface of the belt 3, the axial direction of the second spraying pipe 21 is parallel to the axial direction of the brush roller 18, and the second spraying pipe 21 is arranged between the lower conveying roller 2 and the water absorption block 13. The second spraying pipe 21 is used for cleaning the lower surface of the belt 3, mud adhered to the lower surface of the belt 3 is washed away, the weight of the belt 3 during conveying is reduced, slipping between the belt 3 and a conveying roller is prevented, and the service life of the conveying belt is prolonged.

Because when 3 lower surface cleaning to the belt, belt 3 inclines to set up, belt 3 water after wasing partly drops to the header tank 10 that the below set up, partly can be attached to the water on belt 3 and can follow belt 3 and drive together, therefore, header tank 10 top slope is provided with guide plate 22, guide groove 23 has been seted up on guide plate 22, guide plate 22's one end and 3 lower surface contact of belt, guide plate 22's other one end and header tank 10 upper surface welding, guide plate 22 sets up between the transfer roller 2 and the second shower 21 of lower one end. Guide plate 22 that is equipped with on the one hand can be scraped the water that adheres to on belt 3, makes water flow into header tank 10 along guide plate 22, and on the other hand still adheres to the silt on belt 3 after clearing up belt 3 and clears up, and guiding gutter 23 makes things convenient for the accurate inflow header tank 10 of adnexed water on the belt 3 in, more thorough to belt 3 clearance.

Because after washing belt 3, the surface of belt 3 is moist, when belt 3 conveys the grit once more, can adhere silt on the belt 3, consequently, the welding has place board 24 on the header tank 10, has welded a plurality of gas blow pipes 25 on placing board 24, is connected with miniature air pump on the gas blow pipe 25, and the gas outlet of gas blow pipe 25 is towards belt 3 lower surface, and the inside of gas blow pipe 25 is provided with electric heating wire 26 (see fig. 4), and gas blow pipe 25 is between the transfer roller 2 and the guide plate 22 of lower one end. The lower surface of the belt 3 is dried by the air blowing pipe 25 after washing, the heating wires are arranged on the air blowing pipe 25 to accelerate the drying speed of the belt 3, so that the phenomenon that silt is adhered to the belt 3 due to the fact that the belt 3 is wet is avoided, and the belt 3 cannot deform.

Referring to fig. 3, because the silt that absorbs water piece 13 and adhere to 3 surfaces of belt cleans when, absorb water piece 13 cleans a period of time after, absorb water piece 13 can be worn and torn, need absorb water piece 13 and change, therefore, a branch 11 is gone up and has been seted up recess 14 along vertical direction, the welding has fixed block 15 on another branch 11, set up the draw-in groove 16 that is "U" shape on the fixed block 15, the opening of draw-in groove 16 is towards first shower 9, the one end welding of connecting rod 12 has dwang 17 with recess 14 complex, the axis of dwang 17 sets up along vertical direction, dwang 17 rotates with recess 14 and is connected, connecting rod 12 is towards the one end and the draw-in groove 16 elastic clamping of draw-in groove 16, moreover, the steam generator is simple in structure, the convenience is to.

Referring to fig. 1 and 4, as the sand adhered to the belt 3 is brushed by the brush roller 18, the sand falls into the water collection tank 10, the water absorption block 13 wipes the belt 3, when the water absorption block 13 is humidified by the first spray pipe 9, the wiped mud water falls into the water collection tank 10, the mud water cleaned by the second spray pipe 21 falls into the water collection tank 10, water recycling is required, and the mud water falling into the water collection tank 10 cannot be used, the water collection tank 10 is internally provided with the filter screen 27, the filter screen 27 divides the water collection tank 10 into an upper chamber 28 and a lower chamber 29, the lower chamber 29 is internally provided with a drainage component, the filter screen 27 filters the mud water, the filtered mud stays on the filter screen 27 of the upper chamber 28, the filtered water flows into the lower chamber 29 and is reused, and waste of water resources is reduced. When the amount of water in the lower chamber 29 of the water collecting tank 10 is large, the water needs to be drained by the drainage assembly. In this embodiment, the drainage assembly includes a drainage pipe 30 and a drainage pump 31, the drainage pump 31 is connected to the drainage pipe 30, one end of the drainage pipe 30 is communicated with the water collecting tank 10, the other end of the drainage pipe 30 is communicated with the water supply tank 5, the drainage pump 31 is detachably connected to the drainage pipe 30 through screws, the drainage pipe 30 and the drainage pump 31 are arranged to discharge water into the water supply tank 5, water resources are reused, and cost for cleaning the belt 3 is reduced.

The implementation principle of the embodiment is as follows: when sand and stone are conveyed, the conveying roller 2 is driven to rotate by the driving motor 4, the conveying roller 2 drives the belt 3 to rotate to convey the sand and stone on the belt 3, the sand and stone adhered to the surface of the belt 3 need to be cleaned in the conveying process, the sand and stone with strong adhesiveness are cleaned on the belt 3 by the brush roller 18, then the lower surface of the belt 3 is cleaned by the water absorption block 13 arranged on the water collection tank 10, then the lower surface of the belt 3 is cleaned by the second spraying pipe 21, the belt 3 is dried by the air blowing pipe 25 arranged on the water collection tank 10 after the cleaning is finished, the belt 3 continues to convey the sand and stone, after the sand and stone adhered to the belt 3 are cleaned by the brush roller 18, the water absorption block 13 and the second spraying pipe 21, the sand and stone fall into the water collection tank 10, the filter screen 27 filters the muddy water, the filtered water flows into the lower chamber 29, the water is drained into the water supply tank 5 through the drain pipe 30 arranged in the lower cavity 29 through the drain pump 31 for recycling, silt adhered to the surface of the belt 3 is cleaned under the combined action of the brush roller 18, the water suction pipe, the second spraying pipe 21 and the air blowing pipe 25, the bearing gravity of the belt 3 is reduced, the belt 3 cannot deform, the friction force between the belt 3 and the conveying roller 2 is increased, and the service life of the conveying belt is prolonged.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A sand and stone conveyer with a cleaning device comprises a support frame (1), two conveying rollers (2), a belt (3) arranged obliquely and a driving motor (4) for driving the conveying rollers (2) to rotate, wherein the conveying rollers (2) are rotatably connected with the support frame (1), a rotating shaft of the driving motor (4) is coaxial and fixedly connected with the conveying rollers (2), a shell of the driving motor (4) is fixedly connected with the support frame (1), the belt (3) is wound on the peripheral sides of the two conveying rollers (2), the sand and stone conveyer is characterized in that a water supply tank (5) is arranged below the belt (3), the water supply tank (5) is connected with a water supply pipe (6), the water supply pipe (6) is connected with a water supply pump (7), the water supply pipe (6) is connected with a first water supply pipe (8), the first water supply pipe (8) is connected with a first spray pipe (9), be connected with a plurality of shower heads on first shower (9), one side of feed tank (5) is equipped with header tank (10), header tank (10) are located between transfer roller (2) and the feed tank (5) of lower one end, be equipped with two spinal branch poles (11) along vertical direction on header tank (10), be connected with connecting rod (12) between branch pole (11), the cover is equipped with on connecting rod (12) and absorbs water piece (13), absorb water piece (13) and belt (3) lower surface contact, the shower head is towards absorbing water piece (13), the shower head is located between absorbing water piece (13) and feed tank (5).

2. The sand-stone conveyer with the cleaning device is characterized in that one of the supporting rods (11) is provided with a groove (14) in the vertical direction, the other supporting rod (11) is connected with a fixing block (15), the fixing block (15) is provided with a clamping groove (16), one end of the connecting rod (12) is connected with a rotating rod (17) matched with the groove (14), the axis of the rotating rod (17) is arranged in the vertical direction, the rotating rod (17) is rotatably connected with the groove (14), and one end of the connecting rod (12) facing the clamping groove (16) is elastically clamped with the clamping groove (16).

3. Sandstone conveyor with cleaning device, according to claim 1, characterized in that the header tank (10) is rotatably provided with brush rollers (18), the brush rollers (18) are in contact with the lower surface of the belt (3) and are parallel to the axial direction of the conveyor rollers (2), the brush rollers (18) are located between the first shower (9) and the conveyor roller (2) at the higher end.

4. A sand conveyor with a cleaning device according to claim 3, characterized in that a placing frame (19) is arranged on the water collecting tank (10), a second water supply pipe (20) communicated with the water supply pipe (6) is connected to the placing frame (19), a second spraying pipe (21) is communicated with the second water supply pipe (20), the spraying hole of the second spraying pipe (21) faces to the lower surface of the belt (3), the axial direction of the second spraying pipe (21) is parallel to the axial direction of the brush roller (18), and the second spraying pipe (21) is arranged between the conveying roller (2) at the lower end and the water absorbing block (13).

5. A sand and stone conveyer with cleaning device according to claim 4, characterized in that, the water collecting tank (10) is provided with a guide plate (22) above it in an inclined manner, the guide plate (22) is provided with a guide groove (23), one end of the guide plate (22) is contacted with the lower surface of the belt (3), the other end of the guide plate (22) is fixedly connected with the upper surface of the water collecting tank (10), and the guide plate (22) is arranged between the conveying roller (2) at the lower end and the second spraying pipe (21).

6. A sand and stone conveyer with cleaning device, according to claim 5, characterized in that, the header tank (10) is provided with a placing plate (24), the placing plate (24) is provided with a plurality of air blowing pipes (25), the air outlets of the air blowing pipes (25) face to the lower surface of the belt (3), the inside of the air blowing pipes (25) is provided with an electric heating wire (26), and the air blowing pipes (25) are arranged between the conveying roller (2) at the lower end and the guide plate (22).

7. A sand and stone conveyor with cleaning device according to claim 6, characterized in that, be equipped with filter screen (27) in water collection tank (10), filter screen (27) divide water collection tank (10) into upper chamber (28) and lower chamber (29), be equipped with drainage component in lower chamber (29).

8. A sand and stone conveyor with a cleaning device according to claim 7, characterized in that the drain assembly comprises a drain pipe (30), a drain pump (31), the drain pump (31) is connected to the drain pipe (30), one end of the drain pipe (30) is communicated with the water collecting tank (10), and the other end of the drain pipe (30) is communicated with the water supply tank (5).