CN112108431A

CN112108431A - Energy-saving sandstone automatic washing machine

Info

Publication number: CN112108431A
Application number: CN202010892236.6A
Authority: CN
Inventors: 刘文财
Original assignee: Shenzhen Green Renewable Resources Co ltd
Current assignee: Shenzhen Green Renewable Resources Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2020-12-22

Abstract

The invention relates to an energy-saving automatic sandstone washing machine which comprises a cleaning part for cleaning sandstone, wherein the cleaning part is provided with a feed inlet and a discharge outlet, and the feed inlet is provided with a feeding part for adding the sandstone which is not cleaned into the cleaning part; a drying part for baking the cleaned sand and stone is arranged at the discharge port; the drying part includes: the blowing part is arranged at the upper end of the drying barrel and is used for blowing away the sand and stone which just enter the drying barrel; the drying barrel is used for containing gravels led out from the cleaning part; the heating component is arranged on the drying barrel and is used for heating the drying barrel. The sand and stone drying device has the effects of completely baking the residual water on the surface of the sand and stone, preventing the sand and stone from being easily coagulated into clusters and facilitating emergency use of the sand and stone.

Description

Energy-saving sandstone automatic washing machine

Technical Field

The invention relates to the technical field of sand and stone cleaning, in particular to an energy-saving automatic sand and stone washing machine.

Background

The construction stones for highway oil surface construction, high-speed railway pouring column piers, girders, hydropower station concrete dams and the like have high standard proportion requirements on mud and powder, and if the standard requirements cannot be met, the engineering quality can be directly influenced.

In the prior art, a washing machine is generally used for washing gravels, clear water is required to be added into the washing machine during washing, and the surfaces of the gravels are washed by the clear water so as to achieve the purpose of reducing the content of mud or dust on the surfaces of the gravels.

However, after the sand is cleaned by the clear water, more water is left on the surface of the sand, so that the sand is agglomerated, which is not beneficial to emergency use, and needs to be improved.

Disclosure of Invention

Aiming at the defects in the prior art, one of the purposes of the invention is to provide an energy-saving type automatic sandstone washing machine which has the effects of completely baking the residual moisture on the surface of sandstone, preventing the sandstone from being easily coagulated into clusters and being beneficial to emergency use of the sandstone.

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

an energy-saving sandstone automatic washing machine comprises a cleaning part for cleaning sandstone, wherein the cleaning part is provided with a feed inlet and a discharge outlet, and the feed inlet is provided with a feeding part for adding the unclarified sandstone to the cleaning part; a drying part for baking the cleaned sand and stone is arranged at the discharge port; the drying part includes: the blowing part is arranged at the upper end of the drying barrel and is used for blowing away the sand and stone which just enter the drying barrel; the drying barrel is used for containing gravels led out from the cleaning part; the heating component is arranged on the drying barrel and is used for heating the drying barrel.

By adopting the technical scheme, the sand and stone can enter the cleaning part from the feeding port of the cleaning part to be cleaned and then come out from the discharging port after the cleaning is finished, so that the cleaning purpose is achieved; the sand and stone cleaned by the sand washer is beneficial to emergency use, and meanwhile, the sand and stone use efficiency is improved because the sand and stone do not need to be waited for drying; blow the setting of piece, blow away the grit that will get into in the stoving bucket, help the grit surface fully to contact the heat for the grit can be quick stoving more, just blown away when the grit just got into the stoving bucket in addition, still make the grit of dispersion have sufficient time fully and heat contact, further promoted the drying efficiency of grit.

In a preferred example, the invention may be further configured that a feeding pipe is horizontally arranged at the upper end of the drying barrel, and one end of the feeding pipe is communicated with the upper end of the drying barrel; a feed hopper for receiving the gravel guided out by the cleaning part is fixedly arranged at one end of the feed pipe, which is far away from the drying barrel, the upper port of the feed hopper is connected with the gravel, and the lower port of the feed hopper is communicated with the upper side surface of the feed pipe; the blowing piece is fixedly installed at one end, far away from the drying barrel, of the feeding pipe, and sand entering from the feeding hopper is blown away into the drying barrel.

By adopting the technical scheme, the arrangement of the feeding pipe facilitates the installation of the air blowing piece and the blowing of the air blowing piece to blow away the sand and stone which just enter the drying barrel; the feed hopper is arranged, so that sand and stones led out from the cleaning part can be conveniently led into the feed pipe and blown away by the blowing part.

The invention can be further configured in a better example, a plurality of guide plates for delaying the falling of the sandstone are arranged on the inner side wall of the drying barrel, two adjacent guide plates are oppositely arranged and are respectively inclined towards the opposite side, and a gap for the sandstone to fall from one guide plate to the other guide plate is arranged between the two adjacent guide plates.

Through adopting above-mentioned technical scheme, the setting of guide board for the grit that enters into in the drying barrel has longer time of falling down in the drying barrel, helps more abundant and heat contact of grit, has promoted the efficiency that the grit was dried and the effect of drying.

The present invention in a preferred example may be further configured such that the heat generating component includes: the heat conduction pipe is wound from the upper end of the drying barrel to the lower end of the drying barrel along the outer side wall, and one end of the heat conduction pipe is communicated with the water storage tank and is used for guiding water vapor in the water storage tank to the drying barrel; the heating plate is arranged in the water storage tank and used for heating water in the water storage tank.

By adopting the technical scheme, the heat conduction pipe is wound on the outer side wall of the drying barrel, so that the heat conduction pipe has more sufficient contact area with the drying barrel, and the heat conduction pipe is favorable for transferring heat into the drying barrel; the arrangement of the water storage tank and the heating sheet is beneficial to the generation of water vapor, so that the heat in the drying barrel is supplied actively and continuously.

The present invention in a preferred example may be further configured such that the cleaning portion includes: the sand washing device comprises a support, a sand washing outer barrel, a sand washing inner barrel, a flushing component and a spiral sand guide piece, wherein the sand washing outer barrel is arranged on the support and used for containing sewage flowing down during cleaning, and a water outlet used for guiding out the sewage is formed in the surface of the lower side of the sand washing outer barrel; the sand washing inner cylinder is arranged in the sand washing outer cylinder and is used for containing sand and stone to be washed, and the sand washing inner cylinder is arranged in a grid shape; the flushing component is arranged on the sand washing outer barrel and is used for flushing sand and stone in the sand washing inner barrel; the spiral sand guide piece is rotatably arranged in the sand washing inner barrel and is used for driving sand to move to the discharge port from the feed port of the cleaning part.

By adopting the technical scheme, the arrangement of the bracket provides an installation position for the sand washing outer cylinder, and the normal work of the sand washing outer cylinder is facilitated; the sand washing outer barrel is arranged, so that sewage after sand and stone washing is conveniently collected, the sewage is not easy to scatter everywhere, and the cleanness of the sand and stone washing position is favorably kept; the sand washing inner barrel is convenient to contain the sand to be washed, and meanwhile, as the sand washing inner barrel is arranged in a grid shape, the sand in the sand washing inner barrel can be washed by clear water for washing the sand, and the sand is not easy to be taken away; the arrangement of the flushing component provides a water source for flushing the sandstone, so that the aim of flushing the sandstone is fulfilled conveniently; the spiral leads the setting of sand spare for the grit can be carried away on one side by the washing, helps the continuous incessant of grit cleaning work to go on.

In a preferred example, the invention may be further configured that the lower end of the inner surface of the sand washing outer cylinder is arranged obliquely towards the water outlet; a water outlet is arranged at the water outlet, one end of the water outlet is communicated with the water outlet, and the other end of the water outlet is communicated with the water storage tank.

By adopting the technical scheme, the lower end of the inner side surface of the sand washing outer barrel is obliquely arranged towards the water outlet, so that sewage can more easily flow to the water outlet, and the sewage can conveniently flow out of the sand washing outer barrel; the setting of drain pipe for sewage can be by leading-in to the tank, and sewage just can regard as the water that needs by the evaporation in the tank this moment, and this kind of design makes sewage by reuse, has realized the reuse of water resource, has saved the water resource.

The invention may further be configured in a preferred example such that the flush assembly comprises: the sand washing device comprises a spray head, a water guide pipe and a water pump, wherein one end of the spray head faces the sand washing inner cylinder, the other end of the spray head is communicated with the water guide pipe, a plurality of spray heads are arranged, and the plurality of spray heads are arranged around the circumferential direction of the outer side surface of the sand washing outer cylinder; one end of the water guide pipe is communicated with the spray head, and the other end of the water guide pipe is communicated with the water outlet pipe of the water pump.

By adopting the technical scheme, the plurality of nozzles are arranged and are circumferentially arranged around the outer side surface of the sand washing outer barrel, so that sand and stones in the sand washing inner barrel can be more fully washed, and the washing efficiency and effect are improved; the setting of aqueduct and water pump reaches the purpose of water guide to shower nozzle department on the one hand, and on the other hand still provides power for shower nozzle department spun water is more powerful, thereby reaches the effect of washing the grit, helps further promoting the effect of wasing the grit.

The invention may be further configured in a preferred example, one end of the heat conducting pipe away from the water storage pool is connected with a condensed water tank; the water inlet pipe of the water pump is communicated with the condensed water tank.

Through adopting above-mentioned technical scheme, the setting of condensate tank for vapor in the heat pipe can also further be utilized after the stoving bucket department heat dissipation, has realized the cyclic utilization of water resource, has further reduced the waste of water resource, has reached energy-conserving purpose.

In a preferred example, the invention may be further configured such that the amount of water sprayed by the spray head per unit time is the same as the amount of water vapor liquefied in the condensed water tank, and the amount of water vapor liquefied in the condensed water tank is the same as the amount of water vapor generated in the water storage tank.

Through adopting above-mentioned technical scheme for the condition of the difficult water cutout that appears in shower nozzle department helps going on continuously of grit cleaning work.

The present invention may be further configured in a preferred example such that the charging section includes: the device comprises a feeding hopper, a feeding barrel, a supporting frame, a spiral propelling piece and a driving piece, wherein the feeding hopper is arranged at the upper end of the side surface of a shaft of the feeding barrel; the feeding cylinder is arranged on the support frame, one end of the feeding cylinder is opened, and the opening part of the feeding cylinder is aligned with the feeding hole of the cleaning part; the spiral propelling part is rotatably arranged in the feeding cylinder and is used for propelling the sand in the feeding cylinder into the cleaning part; the driving piece is arranged on the support frame and is used for driving the spiral propelling piece to rotate.

By adopting the technical scheme, the sand and stone can be conveniently added into the charging barrel by the arrangement of the charging hopper; the arrangement of the feeding cylinder and the spiral propelling part is convenient for achieving the purpose of pushing the sand and stone in the feeding hopper into the cleaning part for cleaning; the setting of driving piece for screw propulsion spare can rotate automatically, thereby realizes adding the purpose of grit in the washing portion automatically.

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

1. the drying part is arranged, so that the sand and stone which are cleaned in the cleaning part can be dried in the drying barrel, and can be put into use immediately after coming out of the drying barrel, compared with the existing rinsing machine, the rinsing machine adopting the design mode is beneficial to processing the emergency condition of the sand and stone, and compared with natural drying of the sand and stone, the sand and stone processed by the mode can be dried obviously faster, and the use efficiency of the sand and stone is beneficial to being improved;

2. the arrangement of the feeding pipe facilitates the installation of the blowing piece and simultaneously facilitates the blowing piece to blow away the sand and stone which just enter the drying barrel; the feed hopper is arranged, so that the sand and stone led out from the cleaning part can be conveniently led into the feed pipe and blown away by the air blowing piece;

3. the setting of guide board for the grit that enters into in the drying bucket has longer time of falling down in the drying bucket, helps more abundant and heat contact of grit, has promoted the efficiency and the effect of drying of grit stoving.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view showing the overall structure of the charging section and the cleaning section in the present invention.

FIG. 3 is a schematic sectional view showing the structure of the charging section and the cleaning section in the present invention.

Fig. 4 is a schematic view of the overall structure of the drying section in the present invention.

FIG. 5 is a schematic sectional view of the drying section of the present invention.

Fig. 6 is a schematic sectional view showing a structure of a water storage tank according to the present invention.

Fig. 7 is a schematic view showing the overall structure of the condensate tank of the present invention.

In the figure, 1, a feeding part; 11. a hopper; 12. a charging barrel; 13. a support frame; 14. a screw propulsion member; 15. a drive member; 2. a cleaning section; 21. a support; 22. washing out a sand outer cylinder; 221. a discharge port; 222. a drive motor; 223. a drain pipe; 23. washing an inner sand cylinder; 231. a feed inlet; 24. a flush assembly; 241. a spray head; 242. a water conduit; 243. a water pump; 25. a spiral sand guide part; 3. a drying section; 31. an air blowing member; 32. a drying barrel; 321. a feed pipe; 3211. a feed hopper; 322. a guide plate; 323. a material guide pipe; 324. a support bar; 33. a heat generating component; 331. a heat conducting pipe; 332. a water storage tank; 333. a heating plate; 4. a condensed water tank.

Detailed Description

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

Referring to fig. 1 and 3, the energy-saving sandstone automatic washing machine disclosed by the invention comprises a cleaning part 2 for cleaning sandstone, wherein the cleaning part 2 is provided with a feeding hole 231 and a discharging hole 221, and the feeding hole 231 is provided with a feeding part 1 for adding the sandstone which is not cleaned yet into the cleaning part 2; a drying part 3 for baking the cleaned sand is arranged at the discharge hole 221.

Referring to fig. 2 and 3, the charging section 1 includes: the device comprises a feeding hopper 11, a feeding barrel 12, a supporting frame 13, a spiral propelling part 14 and a driving part 15, wherein the feeding hopper 11 is made of stainless steel materials, and the lower end of the feeding hopper 11 is welded at the upper end of the axial side surface of the feeding barrel 12; the feeding cylinder 12 is made of stainless steel and is cylindrical, the feeding cylinder 12 is welded on the support frame 13, the support frame 13 is made of stainless steel, one end of the feeding cylinder 12 is opened, and the opening part of the feeding cylinder is aligned with the feeding hole 231 of the cleaning part 2; the spiral propelling part 14 is a spiral propelling rod, the spiral propelling part 14 is rotatably arranged in the feeding cylinder 12 and is used for propelling the sand in the feeding cylinder 12 into the cleaning part 2, one end of the spiral propelling part 14, which is far away from the cleaning part 2, is rotatably connected with the feeding cylinder 12 through a bearing, and the rotating axis of the spiral propelling part 14 is superposed with the axis of the feeding cylinder 12; the driving part 15 is a motor, the driving part 15 is fixed on the support frame 13 through a bolt and is used for driving the spiral propelling part 14 to rotate, and an output shaft of the driving part 15 penetrates through one end of the feeding barrel 12 far away from the cleaning part 2 and is coaxially and fixedly connected with the spiral propelling part 14.

Referring to fig. 2 and 3, the cleaning unit 2 includes: the sand washing device comprises a support 21, a sand washing outer cylinder 22, a sand washing inner cylinder 23, a flushing component 24 and a spiral sand guide 25, wherein the support 21, the sand washing outer cylinder 22 and the sand washing inner cylinder 23 are all made of stainless steel, the sand washing outer cylinder 22 is horizontally welded on the support 21 and is used for containing sewage flowing down during cleaning, and a water outlet used for guiding out the sewage is formed in the surface of the lower side of the sand washing outer cylinder 22; the sand washing inner cylinder 23 is horizontally welded in the sand washing outer cylinder 22 and is used for containing gravels to be washed, the sand washing inner cylinder 23 is arranged in a cylinder grid shape, one end, close to the feeding part 1, of the sand washing inner cylinder 23 penetrates out of the sand washing outer cylinder 22, the end part, close to the feeding part 1, of the sand washing inner cylinder 23 is opened to form a feeding hole 231 of the washing part 2, a through hole is further formed in the lower surface of one end, far away from the feeding hole 231, of the sand washing inner cylinder 23, and the through hole penetrates out of the lower side surface of the sand washing outer cylinder 22 to form; the flushing component 24 is arranged on the sand washing outer barrel 22 and is used for flushing sand in the sand washing inner barrel 23; the spiral sand guiding piece 25 is a spiral pushing rod, the spiral sand guiding piece 25 is rotatably arranged in the sand washing inner cylinder 23 and is used for driving sand to move from the feed inlet 231 of the cleaning part 2 to the discharge outlet 221, and the rotating axis of the spiral sand guiding piece 25 coincides with the axis of the sand washing inner cylinder 23.

Referring to fig. 3, a driving motor 222 is further disposed at a position of the sand washing outer cylinder 22 far away from the feed port 231, the driving motor 222 is fixed on the bracket 21 through a bolt, an output shaft of the driving motor 222 penetrates through the sand washing outer cylinder 22 and a end of the sand washing inner cylinder 23 far away from the feed port 231 and is coaxially and fixedly connected with the spiral sand guide 25, and an output shaft of the driving motor 222 is further rotatably connected with the sand washing outer cylinder 22 and the sand washing inner cylinder 23 through bearings respectively.

Referring to fig. 3, the flush assembly 24 includes: the sand washing device comprises a spray head 241, a water guide pipe 242 and a water pump 243, wherein one end of the spray head 241 penetrates through a sand washing outer barrel 22 and faces a sand washing inner barrel 23, the other end of the spray head 241 is communicated with the water guide pipe 242, the spray heads 241 are arranged in a plurality, the plurality of spray heads 241 are arranged around the circumferential direction of the outer side surface of the sand washing outer barrel 22, the spray heads 241 are all located at one end, close to a feed port 231, of the sand washing outer barrel 22, so that water can be filtered for a period of time at one end, far away from the feed port 231, of the sand washing; the water guide pipe 242 has a plurality of water guide pipes 242, one end of the water guide pipe 242 is communicated with the spray head 241, and the other end is communicated with a water outlet pipe of the water pump 243 through the air distribution valve.

Referring to fig. 4 and 6, the drying part 3 includes: the drying device comprises an air blowing piece 31, a drying barrel 32 and a heating component 33, wherein the air blowing piece 31 is an air pump, and the air blowing piece 31 is arranged at the upper end of the drying barrel 32 and is used for blowing away sand which just enters the drying barrel 32; the drying barrel 32 is made of stainless steel, the outer part of the drying barrel 32 is cylindrical, the inner space of the drying barrel 32 is rectangular, and the drying barrel 32 is used for containing gravels led out from the cleaning part 2; the heat generating component 33 is disposed on the drying tub 32 and is used for heating the inside of the drying tub 32.

Referring to fig. 3 and 4, a feeding pipe 321 is horizontally disposed at an upper end of an axial outer surface of the drying tub 32, the feeding pipe 321 is in a circular tube shape and is made of stainless steel, and one end of the feeding pipe 321 is welded and communicated with an upper end of the drying tub 32; a feed hopper 3211 for receiving gravel guided out by the cleaning part 2 is welded at one end of the upper end of the axial outer surface of the feed pipe 321, which is far away from the drying barrel 32, the feed hopper 3211 is made of stainless steel, the upper port of the feed hopper 3211 bears the gravel, and the lower port of the feed hopper 3211 is communicated with the upper surface of the feed pipe 321; the blowing member 31 is fixedly installed at an end port of the feeding pipe 321 far from the drying tub 32 by a bolt, and blows sand entering from the feeding hopper 3211 into the drying tub 32.

Referring to fig. 4 and 5, a plurality of guide plates 322 for delaying the sand from falling into the bottom of the drying barrel 32 are further welded on the inner side wall of the drying barrel 32, the guide plates 322 are rectangular and made of stainless steel, two adjacent guide plates 322 are oppositely arranged and are respectively inclined towards opposite sides, a gap for the sand to fall from one guide plate 322 to the other guide plate 322 is arranged between the two adjacent guide plates 322, so that the sand can slide on the plurality of guide plates 322 after entering the drying barrel 32 from the feeding pipe 321, and the sand is not easy to fall down quickly, so that the sand has longer drying time in the drying barrel 32, and the moisture on the surface of the sand is favorably removed; the guide pipe 323 that is the round platform shape is welded to stoving bucket 32 lower extreme tip department for the grit in the stoving bucket 32 can be followed guide pipe 323 and is derived by automatic, and four spinal branch vaulting poles 324 are still welded to stoving bucket 32 lower extreme department, and the spinal branch vaulting pole 324 is the cuboid shape and is stainless steel material.

Referring to fig. 5 and 6, the heat generating component 33 includes: the heat pipe 331 is a copper pipe, the heat pipe 331 is wound from the upper end of the outer side wall of the drying tub 32 to the lower end of the drying tub 32 along the outer side wall, one end of the heat pipe 331 is communicated with the water storage tank 332 and is used for guiding the water vapor in the water storage tank 332 to the drying tub 32, so that a high-temperature environment is formed inside the drying tub 32; in other embodiments, an insulating layer may be disposed outside the drying tub 32 to wrap the heat pipe 331, so that heat is not easily dissipated to the outside and is dissipated into the drying tub 32, thereby improving heat conduction efficiency; a heating sheet 333 is provided in the reservoir 332 and serves to heat water in the reservoir 332.

Referring to fig. 3 and 6, in order to utilize the sewage discharged from the sand washing outer cylinder 22, on one hand, the lower end of the inner surface of the sand washing outer cylinder 22 is inclined towards the water outlet, so that the sewage is easy to gather at the water outlet to be discharged, on the other hand, a drain pipe 223 is arranged at the water outlet, one end of the drain pipe 223 is communicated with the water outlet, and the other end of the drain pipe 223 is communicated with the water storage tank 332, so that the discharged sewage can be utilized by the water storage tank 332, the waste of water resources is reduced, and the water saving is facilitated.

Referring to fig. 6 and 7, in order to utilize the water vaporized from the heat pipe 331, a condensed water tank 4 is connected to an end of the heat pipe 331 away from the water storage pool 332, the water vapor is completely liquefied in the condensed water tank 4, and ice cubes may be placed in the condensed water tank 4 to accelerate the liquefaction of the water vapor; a water inlet pipe of the water pump 243 (see fig. 2) is communicated with the condensed water tank 4, so that water in the condensed water tank 4 is guided to the nozzle 241 (see fig. 2) and sprayed out for cleaning the sand.

The water in the whole device realizes the purpose of cyclic utilization, greatly reduces the waste of water resources and improves the utilization rate of the water.

Referring to fig. 6 and 7, in order to ensure that a sufficient amount of water is continuously sprayed from the spray head 241 (see fig. 2), the amount of water sprayed from the spray head 241 (see fig. 2) is the same as the amount of water vapor liquefied in the condensed water tank 4, and the amount of water vapor liquefied in the condensed water tank 4 is the same as the amount of water vapor generated in the water storage tank 332, so that the water potential is not easily weakened or even blocked at the spray head 241 (see fig. 2), and the sand and stone cleaning operation can be continuously performed.

The implementation principle of the embodiment is as follows: when the sand is cleaned, firstly, the sand is added into the feeding cylinder 12 from the feeding hopper 11, then the sand is pushed into the sand washing inner cylinder 23 from the feeding port 231 through the spiral pushing part 14, the sand is driven to move to the discharging port 221 by the spiral sand guiding part 25 when being in the sand washing inner cylinder 23, meanwhile, clear water is sprayed out from the nozzle 241 to clean the sand in the sand washing inner cylinder 23, and dirt on the surface of the sand is washed down; the sewage generated by washing enters the water storage tank 332 through the drain pipe 223, the sewage is heated by the heating sheet 333 in the water storage tank 332 to form water vapor, and the water vapor is guided to the drying bucket 32 through the heat conduction pipe 331, so that the drying bucket 32 is heated; the water vapor enters the condensed water tank 4 after dissipating heat at the drying barrel 32 and is completely liquefied, the liquefied water is pumped into the water guide pipe 242 by the water pump 243, and finally is sprayed out from the spray head 241 to clean sand; the sand and stone cleaned from the sand washing inner cylinder 23 fall out of the cleaning part 2 from the discharge port 221 after being filtered, then enter the drying barrel 32 from the feed hopper 3211 through the feed pipe 321, and are blown away by the blowing member 31 when passing through the feed pipe 321; the sand enters the drying barrel 32 and then slides down along the guide plate 322 to the material guide opening at the lower end of the drying barrel 32.

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

Claims

1. An energy-saving sandstone automatic washing machine is characterized by comprising a cleaning part (2) for cleaning sandstone, wherein the cleaning part (2) is provided with a feeding hole (231) and a discharging hole (221), and the feeding hole (231) is provided with a feeding part (1) for adding the sandstone which is not cleaned into the cleaning part (2); a drying part (3) for baking the cleaned sand is arranged at the discharge hole (221); the drying section (3) comprises: the drying device comprises an air blowing piece (31), a drying barrel (32) and a heating component (33), wherein the air blowing piece (31) is arranged at the upper end of the drying barrel (32) and is used for blowing away sand which just enters the drying barrel (32); the drying barrel (32) is used for containing gravels led out from the cleaning part (2); the heating component (33) is arranged on the drying barrel (32) and is used for heating the drying barrel (32).

2. The energy-saving sandstone automatic washing machine according to claim 1, wherein a feed pipe (321) is horizontally arranged at the upper end of the drying barrel (32), and one end of the feed pipe (321) is communicated with the upper end of the drying barrel (32); a feed hopper (3211) for receiving the gravel guided out by the cleaning part (2) is fixedly arranged at one end of the feed pipe (321) far away from the drying barrel (32), the gravel is received at an upper port of the feed hopper (3211), and a lower port of the feed hopper (3211) is communicated with the upper side surface of the feed pipe (321); the blowing piece (31) is fixedly arranged at one end of the feeding pipe (321) far away from the drying barrel (32), and blows sand entering from the feeding hopper (3211) to the drying barrel (32).

3. The automatic energy-saving sandstone washing machine according to claim 1, wherein a plurality of guide plates (322) for delaying sandstone to fall into the bottom of the drying barrel (32) are arranged on the inner side wall of the drying barrel (32), two adjacent guide plates (322) are oppositely arranged and are respectively inclined towards the opposite side, and a gap for sandstone to fall from one guide plate (322) to the other guide plate (322) is arranged between the two adjacent guide plates (322).

4. An energy-saving automatic sand and stone washing machine as claimed in claim 1, wherein said heating unit (33) comprises: the drying device comprises a heat conduction pipe (331), a water storage tank (332) and a heating sheet (333), wherein the heat conduction pipe (331) is wound from the upper end of the drying barrel (32) to the lower end of the drying barrel (32) along the outer side wall, one end of the heat conduction pipe (331) is communicated with the water storage tank (332) and is used for guiding water vapor in the water storage tank (332) to the drying barrel (32); a heating sheet (333) is provided in the reservoir (332) and serves to heat water in the reservoir (332).

5. An energy-saving automatic sand and stone washing machine according to claim 4, characterized in that said washing part (2) comprises: the sand washing device comprises a support (21), a sand washing outer cylinder (22), a sand washing inner cylinder (23), a flushing component (24) and a spiral sand guiding piece (25), wherein the sand washing outer cylinder (22) is arranged on the support (21) and used for containing sewage flowing down during cleaning, and a water outlet used for guiding out the sewage is formed in the surface of the lower side of the sand washing outer cylinder (22); the sand washing inner cylinder (23) is arranged in the sand washing outer cylinder (22) and is used for containing gravels to be washed, and the sand washing inner cylinder (23) is arranged in a grid shape; the flushing component (24) is arranged on the sand washing outer cylinder (22) and is used for flushing sand and stone in the sand washing inner cylinder (23); the spiral sand guide piece (25) is rotatably arranged in the sand washing inner barrel (23) and is used for driving sand to move to the discharge hole (221) from the feed port (231) of the cleaning part (2).

6. The energy-saving automatic sandstone washing machine as claimed in claim 5, wherein the lower end of the inner surface of the sand washing outer cylinder (22) is arranged obliquely towards the water outlet; a water outlet (223) is arranged at the water outlet, one end of the water outlet (223) is communicated with the water outlet, and the other end of the water outlet (223) is communicated with the water storage tank (332).

7. An energy efficient automatic sand and stone washing machine according to claim 5, characterized in that the flushing assembly (24) comprises: the sand washing device comprises a spray head (241), a water guide pipe (242) and a water pump (243), wherein one end of the spray head (241) faces the sand washing inner barrel (23), the other end of the spray head (241) is communicated with the water guide pipe (242), a plurality of spray heads (241) are arranged, and the plurality of spray heads (241) are arranged around the circumferential direction of the outer side surface of the sand washing outer barrel (22); one end of the water guide pipe (242) is communicated with the spray head (241), and the other end is communicated with a water outlet pipe of the water pump (243).

8. The automatic energy-saving sandstone water washing machine according to claim 7, wherein a condensed water tank (4) is connected to one end of the heat conduction pipe (331) far away from the water storage tank (332); the water inlet pipe of the water pump (243) is communicated with the condensed water tank (4).

9. An energy-saving sandstone automatic washing machine according to claim 8, wherein the amount of water sprayed by said nozzle (241) is the same as the amount of water vapor liquefied in said condensed water tank (4) per unit time, and the amount of water vapor liquefied in said condensed water tank (4) is the same as the amount of water vapor generated in said water storage tank (332).

10. An energy-saving automatic sand and stone washing machine according to claim 1, characterized in that the charging part (1) comprises: the device comprises a feeding hopper (11), a feeding barrel (12), a supporting frame (13), a spiral propelling part (14) and a driving part (15), wherein the feeding hopper (11) is arranged at the upper end of the shaft side surface of the feeding barrel (12); the feeding cylinder (12) is arranged on the support frame (13), one end of the feeding cylinder (12) is opened, and the opening is aligned with the feeding hole (231) of the cleaning part (2); the spiral propelling part (14) is rotatably arranged in the feeding cylinder (12) and is used for propelling the sand in the feeding cylinder (12) into the cleaning part (2); the driving piece (15) is arranged on the support frame (13) and is used for driving the spiral propelling piece (14) to rotate.