CN108160315B

CN108160315B - Water circulation system for construction waste treatment

Info

Publication number: CN108160315B
Application number: CN201711216802.6A
Authority: CN
Inventors: 江晓丹; 林秋平
Original assignee: Shenzhen Jiangshi Enze Industrial Co ltd
Current assignee: Shenzhen Jiangshi Enze Industrial Co ltd
Priority date: 2017-11-28
Filing date: 2017-11-28
Publication date: 2024-04-19
Anticipated expiration: 2037-11-28
Also published as: CN108160315A

Abstract

The invention provides a water circulation system for treating construction waste, which comprises a first water tank, a second water tank and a sand washing machine for washing sand, a third water tank and a sixth water tank for storing mud, a first cyclone separator for separating sand and mud, a first environment-friendly barrel for separating mud, a first slurry pump and a plurality of filter presses, wherein the water circulation system further comprises a clean water tank, the clean water tank is provided with pipelines which are respectively connected to the first water tank, the second water tank, the third water tank, the sixth water tank, the first environment-friendly barrel and the plurality of filter presses, the water separated by the plurality of filter presses flows into the clean water tank through the pipelines, the clean water tank respectively supplies water to the first water tank, the second water tank, the sand washing machine, the third water tank, the sixth water tank and the first environment-friendly barrel, the mud washed by the first water tank enters the third water tank, and the mud in the third water tank is separated by the first cyclone separator into sand and mud entering the sixth water tank. Through the arrangement, the water recycling is realized, water resources are saved, and the energy conservation and environmental protection are realized.

Description

Water circulation system for construction waste treatment

Technical Field

The invention belongs to the technical field of garbage disposal, and particularly relates to a water circulation system for building garbage disposal.

Background

The construction waste refers to dregs, waste soil, waste materials, sludge and other wastes generated in the process of constructing, paving or dismantling various buildings, structures, pipe networks and the like by construction units or individuals.

The treatment mode of the construction waste is mainly to adopt technologies such as sorting and crushing to carry out limited recycling at present, and the recycled construction waste contains complex components and cannot be used as a main material of a new construction, and can only be used as auxiliary materials, so that the digestion amount of the construction waste is small, the waste of water in the treatment process is serious, the produced pollution is serious, and the construction waste is not energy-saving and environment-friendly.

Therefore, there is an urgent need to solve the above-mentioned technical problems.

Disclosure of Invention

The invention aims to provide a water circulation system for treating construction waste, which realizes the recycling of water, saves water resources, saves energy and protects environment in the process of treating the construction waste.

In order to achieve the purpose of the invention, the invention provides the following technical scheme:

The invention provides a water circulation system for treating construction waste, which comprises a first water tank, a second water tank and a sand washing machine, wherein the first water tank, the second water tank and the sand washing machine are used for washing sand, the third water tank and the sixth water tank are used for storing slurry, a first cyclone separator is used for separating sand and slurry, a first environment-friendly bucket, a first slurry pump and a plurality of filter presses are used for separating slurry, the water circulation system further comprises a clean water tank, the clean water tank is provided with pipelines which are respectively connected to the first water tank, the second water tank, the third water tank, the sixth water tank, the first environment-friendly bucket and the plurality of filter presses, water separated by the plurality of filter presses flows into the clean water tank through the pipelines, the clean water tank respectively supplies water to the first water tank, the second water tank, the third water tank, the sixth water tank and the first environment-friendly bucket, and slurry after the first sand washing enters the third water tank, and the first cyclone separator separates the slurry in the third water tank into the slurry entering the first environment-friendly bucket and the sixth water tank.

The device comprises a first water tank, a second water tank, a third water tank, a first cyclone separator, a first mud conveying pipe, a first mud pump and a filter press, wherein a first ditch is connected between the third water tank and the first water tank, a first mud conveying pipe is connected between the first cyclone separator and the first environment-friendly barrel, mud separated by the first cyclone separator is conveyed to the first environment-friendly barrel to be precipitated, mud precipitated at the bottom of the first environment-friendly barrel is conveyed to the filter press through the first slurry pump, mud is obtained after the mud is extruded by the filter press, and water is separated.

Wherein the sand washing machine also comprises a fourth water tank and a fifth water tank for storing mud, a second cyclone separator, a third cyclone separator and a fourth cyclone separator for separating sand and mud, a second environment-friendly barrel, a third environment-friendly barrel, a second slurry pump and a third slurry pump for separating mud, a second water channel is further connected between the fourth water tank and the second water tank, a third water channel is further connected between the fifth water tank and the sand washing machine, the slurry separated from the fourth water tank is conveyed to the second environment-friendly barrel through a third slurry conveying pipe, the slurry separated from the fifth water tank is conveyed to the third environment-friendly barrel through the fourth slurry conveying pipe, the slurry separated from the sixth water tank is conveyed to the third environment-friendly barrel through the second slurry conveying pipe, the slurry precipitated at the bottom of the second environment-friendly barrel is conveyed to the filter press through the second slurry pump, and the slurry precipitated at the bottom of the third environment-friendly barrel is conveyed to the filter press through the third slurry pump.

The clean water tank is provided with a first waterway, a second waterway and a third waterway, and the first waterway is respectively conveyed to the first water tank, the second water tank and the sand washing machine after being led out from the clean water tank; the second waterway is respectively conveyed to the third water tank, the fourth water tank, the fifth water tank and the sixth water tank after being led out from the clean water tank; and the third waterway is led out of the clean water tank and then is respectively conveyed to the first environment-friendly barrel, the second environment-friendly barrel and the third environment-friendly barrel.

The mud with partial water content after sand washing in the first water tank flows into the third water tank through the first ditch, and the mud with partial water content in the first water tank also enters the second water tank; part of the water-containing cement paste after sand washing in the second water tank enters the fourth water tank through the second water channel, and part of the water-containing sand and stones in the second water tank enter the sand washing machine; and mud after sand washing in the sand washing machine enters the fifth water tank through the third water channel.

The sand washing machine is characterized by further comprising a coarse sand dehydrator, wherein part of water-containing sand and stones in the sand washing machine enter the coarse sand dehydrator, and a pipeline is further arranged in the coarse sand dehydrator to convey dehydrated water to the fifth water tank.

The sand dehydrator further comprises a fine sand dehydrator and a fourth conveying belt, wherein the water-containing sand and stones separated by the first cyclone separator, the third cyclone separator and the fourth cyclone separator are conveyed to the sixth water tank through the fourth conveying belt, and the fine sand dehydrator is further provided with a pipeline for conveying dehydrated water to the sixth water tank.

The first environment-friendly barrel comprises a first barrel body, a first outer peripheral wall and a bottom wall fixedly connected to one end of the first outer peripheral wall; one end of the second peripheral wall is fixedly connected to the bottom wall to form a second barrel body, and the second barrel body is positioned in the first barrel body; the sleeve is sleeved outside the second barrel body, an accommodating space is formed between the sleeve and the first peripheral wall, and a first gap is formed between the sleeve and the second peripheral wall; after the second barrel body is full of the mud-water mixture, the mud-water mixture overflows from the second barrel body and flows into the accommodating space after passing through the first gap.

Wherein, be equipped with oblique material intubate layer in the accommodation space, oblique material intubate layer is used for with accommodation space is divided into clear water district and mud district.

The bottom wall is provided with a first discharge port, and the first discharge port is communicated with the accommodating space and the outside and is used for discharging mud in the mud area.

The invention has the beneficial effects that:

According to the construction waste treatment system, the first water tank, the second water tank, the third water tank, the sixth water tank, the sand washing machine and the first cyclone separator are arranged, the first environment-friendly barrel, the first slurry pump, the plurality of filter presses and the clean water tank are arranged, in the construction waste treatment process, the clean water tank supplies water to the first water tank, the second water tank, the third water tank, the sixth water tank, the sand washing machine and the first environment-friendly barrel, water separated by the filter presses enters the clean water tank, water recycling is achieved, water resources are saved, and energy conservation and environment protection are achieved.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a construction waste disposal system according to an embodiment of the present invention;

FIG. 2 is a schematic view of the water circulation system of FIG. 1;

FIG. 3 is a schematic view of the first cyclone separator of FIG. 1;

FIG. 4a is a schematic diagram of the structure of a feeder in one embodiment;

FIG. 4b is a schematic left-hand structural view of the feeder of FIG. 4 a;

FIG. 5a is a schematic diagram of a waste separator according to an embodiment of the present invention;

FIG. 5b is a schematic diagram illustrating a waste separator according to another embodiment of the present invention;

FIG. 5c is a schematic view of a first cylinder of a waste separator according to an embodiment of the present invention;

FIG. 5d is a schematic view of a screen member of a waste separator according to an embodiment of the present invention;

FIG. 6a is a schematic structural diagram of a sand bailing machine according to an embodiment of the present invention;

fig. 6b is a schematic structural diagram of a skip bucket of the sand bailing machine according to the embodiment of the present invention;

FIG. 7a is a schematic diagram of a sand screening machine according to an embodiment of the present invention;

Fig. 7b is a schematic structural view of a first cylinder of the sand screening machine according to the embodiment of the present invention;

fig. 7c is a schematic structural diagram of a second cylinder of the sand screening machine according to the embodiment of the present invention;

FIG. 8a is a schematic perspective view of a sand washer according to one embodiment of the present invention;

FIG. 8b is a schematic cross-sectional view of the wheel of the sand washer of FIG. 8 a;

FIG. 8c is a schematic view of the screen deck structure of the sand washer of FIG. 8 a;

FIG. 8d is a schematic view of the flat plate construction of the sand washer of FIG. 8 a;

FIG. 8e is a schematic view of the sand washer of FIG. 8a in use;

FIG. 9a is a schematic perspective view of a vibratory dewatering screen according to an embodiment of the invention;

FIG. 9b is a schematic right-hand view of the vibratory dewatering screen of FIG. 9 a;

FIG. 9c is a schematic view of a partial enlarged construction of the screening surface of the vibratory dewatering screen of FIG. 9 a;

FIG. 10a is a schematic diagram of a slurry separator according to an embodiment of the present invention;

FIG. 10b is a schematic cross-sectional view of a mud separating apparatus according to an embodiment of the present invention;

fig. 10c is a top view of a slurry separator according to an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.

Referring to fig. 1 and 2, a construction waste treatment system according to a preferred embodiment of the present invention includes a coarse sand system 100, a fine sand system 200, a slurry system 300, and a water circulation system 400, wherein the coarse sand system 100 is connected to the fine sand system 200, the fine sand system 200 is connected to the slurry system 300, the water circulation system 40 supplies water to the coarse sand system 100, the fine sand system 200, and the slurry system 300, the coarse sand system 100 feeds, slurry generated during the course of preparing coarse sand enters the fine sand system 200, slurry generated during the course of preparing fine sand by the fine sand system 200 enters the slurry treatment system 300, and water generated during the course of preparing a mud cake by the slurry treatment system 300 enters the water circulation system 400.

In this embodiment, by providing the coarse sand system 100, the fine sand system 200, the mud system 300 and the water circulation system 400 and organically combining the systems, coarse sand, fine sand and mud can be separated and obtained, and water circulation can be realized, so that construction waste is effectively recovered, water resources can be saved, and energy conservation and environmental protection can be realized.

In this embodiment, the size ranges of the coarse sand and the fine sand can be adjusted according to market demands, and in general, the size range of the prepared coarse sand is 0.5 mm-8 mm, and the size range of the fine sand is 0.075 mm-0.5 mm. Coarse sand can be used for making concrete, fine sand can be used for plastering and pointing, and mud can be used for making bricks.

Further, the coarse sand system 100 includes a feeder 101, a waste separator 102, a first sand scooping machine 106, a crusher 107, a second sand scooping machine 109, a sand screening machine 110, a sand washing machine 112 and a coarse sand dewatering machine 113 which are sequentially arranged, wherein a first water tank 105 is arranged at an outlet of the waste separator 101, a second water tank 108 is arranged at an outlet of the crusher 107, sand separated by the waste separator 102 is scooped to the crusher 107 by the first sand scooping machine 106 from the first water tank 105, sand broken by the crusher 107 is scooped to the sand screening machine 110 by the second sand scooping machine 109 from the second water tank 108, and a first conveying belt (not shown in the figure) is connected to the coarse sand dewatering machine 113, and is arranged on a support 115, and the first conveying belt is movably arranged on the support 115.

A sixth conveying belt 114 may be further disposed between the support 115 and the coarse sand dehydrator 113, and coarse sand dehydrated by the coarse sand dehydrator 113 is conveyed onto the first conveying belt on the support 115 by the sixth conveying belt 114, so as to be used for adjusting a setting position of the first conveying belt, and more convenient for installing equipment according to geographical topography. The support 115 is further provided with a secondary support 116 which can be arranged in a sliding manner relative to the support 115, the first conveyor belt is also partially arranged on the secondary support 116, and the unloading position of coarse sand is changed by sliding of the secondary support 116, so that the coarse sand can be unloaded in a coarse sand unloading area 117. The support 115 may be supported by the support posts 118 at a higher distance from the ground so that coarse sand may be directly carried by the truck under the support 116 in the coarse sand discharge area 117, eliminating the step of reloading coarse sand onto the truck, and improving efficiency.

Further, one end of the first sand scooping machine 106 is disposed in the first water tank 105, the other end of the first sand scooping machine 106 opposite to the first sand scooping machine 106 is raised, and the first sand scooping machine 106 is configured to gradually rise from the waste separator 102 to the crusher 107, one end of the second sand scooping machine 109 is disposed in the second water tank 108, the other end of the second sand scooping machine 109 opposite to the second sand scooping machine 109 is raised, and the second sand scooping machine 109 is configured to gradually rise from the crusher 107 to the sand screening machine 110, a second conveying belt 111 is further connected between the sand screening machine 110 and the crusher 203, and the second conveying belt 111 conveys large-particle sand and stones generated after sand screening by the sand screening machine 110 to the crusher 107 for secondary crushing.

The first sand scooping machine 106 is arranged to scoop sand from the first water tank 105, so that sand and stones separated from the waste separator 102 are primarily washed, part of mud and fine sand can be washed out, the scooped sand and stones are crushed by the crusher 107, large-size sand and stones are crushed into small-size sand and stones, sand and stones with sizes smaller than the size of the screen of the crusher 107 are obtained through screening of the screen in the crusher 107, the sand and stones with sizes smaller than the size of the screen of the crusher 107 are sent into the second water tank 108 to be washed out, part of mud and fine sand are further washed out, the sand and stones scooped out of the second water tank 108 by the second sand scooping machine 109 are screened out by the sand screening machine 110, sand and stones with sizes smaller than the size of the screen of the sand screening machine 110 are obtained, and stones with sizes larger than the size of the screen of the sand screening machine 110 are conveyed to the crusher 107 through the second conveying belt 111 to be crushed again until the size of the sand and stones with sizes smaller than the screen 110 are screened. The sand screening machine 110 conveys sand and stones into the sand washing machine 112, water is filled in the sand washing machine 112, the sand and stones in the sand washing machine 112 are driven to be fully mixed with the water through rotation of the rotating wheel, mud and fine sand are suspended in the water through friction between the sand and stones and the sand washing machine 112, coarse sand is brought to the coarse sand dehydrator 113 by the rotating wheel, and the sand washing machine 112 can comprise a plurality of sand washing machines connected in series so as to accelerate sand washing efficiency.

Further, a third conveyor belt 103 is connected to the waste separator 102, and the waste generated by separating sand from stone by the waste separator 102 is carried away by the third conveyor belt 103. In general, the waste includes construction waste of large size steel bars, boards, etc., that cannot pass through the screen in the waste separator 102. The waste conveyed by the third conveyor belt 103 is stored in the waste storage area 104, and the waste can of course be recycled in other ways to make full use of resources.

Further, referring to fig. 1 and 3 together, the fine sand system 200 includes a third water tank 203, a fourth water tank 207, a fifth water tank 210, a sixth water tank 212, a fourth conveying belt 205, a fine sand dehydrator 214, a fifth conveying belt 215, a first cyclone 204 and a second cyclone 213, a first water channel 201 is connected between the third water tank 203 and the first water tank 105, a second water channel 206 is connected between the fourth water tank 207 and the second water tank 108, a third water channel 209 is connected between the fifth water tank 210 and the sand washer 112, the third water tank 203 is provided with a first slurry pump 2041, the slurry in the third water tank 203 is conveyed to the first cyclone 204 by the first slurry pump 2041, the fine sand separated by the first cyclone 204 is conveyed to the sixth water tank 212 by the fourth conveying belt 205, the sixth water tank 212 is provided with a second slurry pump (not numbered in the drawing), and the slurry in the second water tank 212 is conveyed to the second cyclone 213 by the second conveying belt 213, and the slurry in the second water tank 212 is dewatered by the second cyclone 213.

The first canal 201, the second canal 206 and the third canal 209 may also be in the form of pipes, an opening (not shown in the figure) is formed on an upper side of the first water tank 105 and connected to the first canal 201, so that the slurry suspension in the first water tank 105 flows into the first canal 201 through the opening, an opening (not shown in the figure) is formed on an upper side of the second water tank 108 and connected to the second canal 206, so that the slurry suspension in the second water tank 108 flows into the second canal 206 through the opening, and an opening (not shown in the figure) is formed on an upper side wall of the sand washing tank of the sand washer 112 and connected to the third canal 209, so that the slurry suspension in the sand washer 112 flows into the third canal 209 through the opening. By providing openings on the upper side edges of the first canal 201 and the second canal 206 and providing openings on the side wall of the upper part of the sand washing pool of the sand washing machine 112, sand and stones sunk into the pool bottom are prevented from flowing out, and the separation of coarse sand and fine sand is ensured.

Wherein, wash sand machine 112 can set up a plurality ofly, and a plurality of sand machines 112 connect gradually, can set up basin or pipeline intercommunication each other between the export on the sand washing pond of a plurality of sand machines 112 to set up the opening on basin or the water pipe and be connected with third ditch 209, third ditch 209 can set up to a plurality ofly, in order to accelerate the speed of carrying mud.

Referring to FIG. 3, a schematic diagram of a preferred embodiment of the first cyclone 204 is shown, and it will be appreciated that other cyclone structures in the system may also be referred to as the first cyclone. Cyclone separators, also known as hydrocyclones, are devices that utilize the centrifugal sedimentation principle to separate solid particles from a suspension. The main body of the device is composed of a cylinder and a cone, the cone is closer to the lower surface than the cylinder, the cylinder is shorter, the side wall of the cylinder is provided with a suspended matter inlet, the top of the cylinder is provided with a liquid outlet, the separated liquid part is discharged from the liquid outlet at the top of the cylinder, the cone is longer and gradually reduced from the cylinder to the cone outlet, and the separated solid particles are discharged from an opening at the reduced position. The cyclone separators in the system are 2, which are arranged side by side, and the tops 2047 and 2048 are communicated through a pipeline 2049, and an opening is arranged on the pipeline 2049 and is connected with a first mud conveying pipe 301. The slurry suspension pumped by the first slurry pump 2041 from the third water tank 203 is divided into a first path 2043 and a second path 2044 by a pipe 2042, and enters into 2 cylinders respectively along the tangential direction, the slurry suspension spirally moves downwards in the cyclone separator, and solid particles are thrown to the wall under the action of inertial centrifugal force and then fall to outlets 2045 and 2046 at the cone bottom along with the downward cyclone. The clear liquid or the liquid containing fine particles becomes ascending inner cyclone and is discharged from the pipeline at the center of the top part, which is called overflow. In cyclone separators, the rapid movement of solid particles along the wall surface can cause severe wear to the separator, either by being made of or lined with a wear resistant material for extended life.

Wherein, the fine sand separated in the second cyclone 213 enters the fine sand dehydrator 214, and the fine sand dehydrated by the sand washing dehydrator 214 is transported to the fine sand storage area 216 by the fifth transporting belt 215, and the fine sand storage area 216 is far away from the coarse sand storage area 117, so that coarse sand and fine sand are respectively stored.

Further, the fine sand system 200 further includes a third cyclone 208 and a fourth cyclone 211, the fourth pond 207 is provided with a third slurry pump (not numbered in the figure), the third slurry pump conveys the slurry in the fourth pond 207 to the third cyclone 208, the fifth pond 210 is provided with a fourth slurry pump (not numbered in the figure), the fourth slurry pump conveys the slurry in the fifth pond 210 to the fourth cyclone 211, and the fine sand separated by the third cyclone 208 and the fourth cyclone 211 is conveyed to the sixth pond 212 through the fourth conveying belt 205.

Wherein the first cyclone 204, the third cyclone 208 and the fourth cyclone 211 are arranged in a straight line in the system, the fourth conveyor belt 205 is arranged at the outlet position of the first cyclone 204, the third cyclone 208 and the fourth cyclone 211, and the fourth conveyor belt 205 can be assumed to be on a support.

Further, the first canal 201 is provided with a screening device 202 for picking up impurities in the first canal 201. Wherein, the sundries mainly comprise plastics, plant stems and leaves, and the like, and the sundries are treated in other modes after being recovered so as to avoid environmental pollution. The screening device 202 comprises a grid mesh, further, the grid mesh can be of an annular structure connected end to end and arranged on a support, hook-shaped protrusions can be further arranged on the grid mesh, a driving device is arranged on the support and connected with the grid mesh, the grid mesh and the hook-shaped protrusions do up-down circular motion on the first ditch 201, and sundries in the first ditch 201 are hooked up through the hook-shaped protrusions. The grid mesh has gaps to allow water and mud of a size smaller than the gaps to pass through, thereby accomplishing the separation of impurities.

Further, the mud system 300 includes a first environmental protection barrel 302, a first slurry pump 304 and a plurality of filter presses 309, a first mud conveying pipe 301 is connected between the first cyclone 204 and the first environmental protection barrel 302, mud separated by the first cyclone 204 is conveyed to the first environmental protection barrel 302 for precipitation through the first mud conveying pipe 301, mud precipitated at the bottom of the first environmental protection barrel 302 is conveyed to the filter presses 309 through the first slurry pump 304, mud cakes are obtained after the mud is extruded by the filter presses 309, and water in the mud is separated.

Wherein, first slurry pump 304 is connected with first environmental protection bucket 302 through pipeline 303, and pipeline 303 sets up in first environmental protection bucket 302 lateral wall bottom and UNICOM to the inside of first environmental protection bucket 302, and the export of first slurry pump 304 is connected with pipeline 305, and pipeline 305 is connected to pressure filter 309. In order to reasonably control the working condition of the system, the output flow of the first slurry pump 304 is set to be adjustable, and the adjustment mode can be realized by adopting a PLC controller and a frequency converter to control the power of a motor (not shown in the figure) connected with the first slurry pump 304, so that the rotating speed of an impeller inside the first slurry pump 304 is changed, and the amount of slurry pushed by the impeller is changed.

Further, the mud system 300 further includes a second environmental protection barrel 307, a third environmental protection barrel 312, a second slurry pump 309, and a third slurry pump 314, a second slurry pipe 306 is connected between the third cyclone separator 208 and the second environmental protection barrel 307, the mud separated by the third cyclone separator 208 is conveyed to the second environmental protection barrel 307 through the second slurry pipe 306 for precipitation, the mud precipitated at the bottom of the second environmental protection barrel 307 is conveyed to the filter press 319 through the second slurry pump 309, a third slurry pipe 311 is connected between the fourth cyclone separator 211 and the third environmental protection barrel 312, the mud separated by the fourth cyclone separator 211 is conveyed to the third environmental protection barrel 312 through the third slurry pipe 311 for precipitation, the mud separated by the second cyclone separator 213 is connected to the third environmental protection barrel 312 through the fourth slurry pipe 316, the mud separated by the second cyclone separator 213 is conveyed to the third environmental protection barrel 319 through the fourth slurry pipe 316 for precipitation, and the mud separated by the second cyclone separator 213 is conveyed to the filter press 312 for precipitation, and the mud separated by the third slurry pipe 314 is conveyed to the filter press 312 for precipitation, and the mud separated by the third slurry is conveyed to the filter press 312 for precipitation.

Wherein, the second slurry pump 309 is connected with the second environmental protection barrel 307 through a pipeline 308, the pipeline 308 is arranged at the bottom of the outer side wall of the second environmental protection barrel 307 and communicated to the inside of the second environmental protection barrel 307, the outlet of the second slurry pump 309 is connected with a pipeline 310, and the pipeline 310 is connected to the filter press 309. In order to reasonably control the working condition of the system, the output flow of the second slurry pump 309 is set to be adjustable, and the adjustment mode can be realized by adopting a PLC controller and a frequency converter to control the power of a motor (not shown in the figure) connected with the second slurry pump 309, so that the rotation speed of the impeller inside the second slurry pump 309 is changed, and the amount of slurry pushed by the impeller is changed. The third slurry pump 314 is connected with the third environment-friendly barrel 312 through a pipe 313, the pipe 313 is arranged at the bottom of the outer side wall of the third environment-friendly barrel 312 and communicated to the inside of the third environment-friendly barrel 312, the outlet of the third slurry pump 314 is connected with a pipe 315, and the pipe 315 is connected to the filter press 309. In order to reasonably control the working condition of the system, the output flow of the first slurry pump 302 is set to be adjustable, and the adjustment mode can be realized by adopting a PLC controller and a frequency converter to control the power of a motor (not shown in the figure) connected with the third slurry pump 314, so that the rotating speed of an impeller in the third slurry pump 314 is changed, and the amount of slurry pushed by the impeller is changed.

The filter press 319 can be arranged in a factory building 318, the factory building is of a two-layer structure, the filter press 319 is arranged on a second layer, a mud cake storage area 320 is arranged on a first layer, and in the working process of the filter press 319, a pressed mud cake falls off from the filter press 319 to the mud cake storage area 320, and extruded water is additionally conveyed to a clean water tank 401 through a pipeline. The factory building is also provided with necessary auxiliary equipment or devices such as stairs 317.

Further, referring to fig. 1 and 2, the water circulation system 400 includes a clean water tank 401, the clean water tank 401 is provided with pipes connected to the first water tank 105, the second water tank 108, the third water tank 203, the fourth water tank 207, the fifth water tank 210, the sixth water tank 212, the first environmental protection tub 302, the second environmental protection tub 307, the third environmental protection tub 312 and the plurality of filter presses 319, respectively, and water separated by the plurality of filter presses 319 flows into the clean water tank 401 through the pipes, and the clean water tank 401 supplies water to the first water tank 105, the second water tank 108, the third water tank 203, the fourth water tank 207, the fifth water tank 210, the sixth water tank 212, the first environmental protection tub 302 and the second environmental protection tub 307, respectively.

The clean water tanks 401 may be provided in plurality, and the clean water tanks 401 may be communicated with each other.

The flow direction of the water is that the clean water tank 401 leads out a first water path, a second water path and a third water path, and the first water path is respectively conveyed to the first water tank 105, the second water tank 108 and the sand washer 112 after being led out from the clean water tank 401; the second waterway is respectively conveyed to the third water tank 203, the fourth water tank 207, the fifth water tank 210 and the sixth water tank 212 after being led out from the clean water tank 401; the third waterway is respectively conveyed to the first environmental protection barrel 302, the second environmental protection barrel 307 and the third environmental protection barrel 312 after being led out from the clean water tank; the washed slurry in the first pond 105 flows into the third pond 203 through the first canal 201, and the sand in the first pond 105 also flows into the second pond 108; part of the water-containing cement paste washed by the sand in the second water tank 108 enters a fourth water tank 207 through a second canal 206, and part of the water-containing sand in the second water tank 108 also enters the sand washer 112; the mud after sand washing in the sand washer 112 enters a fifth water tank 210 through a third water channel 209, and part of water-containing sand and stones in the sand washer 112 enter a coarse sand dehydrator 112; the coarse sand dehydrator 112 is also provided with a pipeline for delivering dehydrated water to a fifth pond 210; the slurry in the third pond 203 is separated into the aqueous fine sand conveyed to the sixth pond 212 through the fourth conveyor belt 205 and the slurry conveyed to the first environment-friendly barrel 302 through the first slurry conveying pipe 301 by the first cyclone 204; the slurry in the fourth pond 207 is separated into the aqueous fine sand transported to the sixth pond 212 by the fourth conveyor belt 205 and the slurry transported to the second environment-friendly bucket 307 by the second slurry transporting pipe 306 by the third cyclone 208; the slurry in the fifth pond 210 is separated into the aqueous fine sand transported to the sixth pond 212 through the fourth conveyor belt 205 and the slurry transported to the third environment-friendly tub 312 through the third slurry transporting pipe 311 by the fourth cyclone 211; the slurry in the sixth pond 203 is separated into aqueous fine sand entering the fine sand dehydrator 214 through the second cyclone 213 and slurry delivered to the third environment-friendly tub 312 through the fourth slurry delivery pipe 316; the fine sand dehydrator 214 is further provided with a pipe to transfer the dehydrated water to the sixth water tank 212; the cement-containing slurry precipitated in the first environmental protection bucket 302 is delivered to a filter press 319 via a first slurry pump 304; the cement-containing slurry precipitated in the second environment-friendly tank 307 is sent to a filter press 319 through a second slurry pump 309; the cement-containing slurry precipitated in the third environment-friendly tank 313 is transferred to the filter press 319 through the third slurry pump 314; the water separated after the slurry is squeezed by the plurality of filter presses 319 flows into the clean water tank 401 through the pipe, and thus, the recycling of the water is completed, and the waste of water resources can be reduced.

In the following, preferred embodiments of the main device in the present system are given.

1. Feeder 101

Referring to fig. 4a to 4b, the feeder 101 includes a container 1011 formed by enclosing a steel plate, wherein the top and bottom surfaces of the container 1011 are opened, a conveyor belt 1012 is connected to the bottom surface of the container 1011, and the conveyor belt 1012 extends beyond the length of the container 1011 and extends a distance in the length direction of the container 1011, and the conveyor belt 1012 extends beyond the width of the container 1011 and extends a distance in the width direction of the container 1011. The bottom surface of the container 1011 is closely contacted with the conveyor 1012, and a slit 1013 is formed in a side plate of one end of the bottom of the container 1011 in the longitudinal direction near the conveyor 1012.

Specifically, the container 1011 has a top opening larger than a bottom opening, and is in an inverted trapezoid shape in the cross section along the length direction, and of course, the cross section along the width direction can also be in an inverted trapezoid shape, so that the material fed into the container 1011 can be converged into the bottom opening area by gravity, the top opening is also convenient for feeding, and the size of the slit 1013 formed in the container 1011 can be set to be adjustable so as to adapt to feeding requirements of different sizes.

The working flow is as follows: the construction waste is placed into the container 1011 from the opening of the top of the container 1011 by a forklift or the like, the conveyor 1012 is started, and the construction waste is carried out of the container 1011 by the conveyor 1012 from the slit 1013 formed in the container 1011 and enters the next apparatus.

The feeder 101 is applicable to construction waste such as stones, sand, soil, and the like, and also comprises reinforcing steel bars, plastic waste, and the like, and has stable feeding and good reliability.

2. Waste separator 102

Referring to fig. 5a to 5d together, an embodiment of the present invention provides a waste separator 102 for primarily screening the collected building residues to separate the larger volume impurities such as steel bars, large sand and stone in the building residues from the sand and stone, wherein the screened sand and stone can be crushed and secondarily screened. In this embodiment, the waste separator includes a base 1021 and a rotating member 1022. Specifically, the base 1021 is fixed to the ground 10. In this embodiment, the base 1021 is a main supporting structure of the waste separator, and the stability of the base 1021 determines the overall structural stability of the waste separator. In one embodiment, piles may be driven on the ground 10 to stably fix the base 1021. Further, the base 1021 is a hollow support, which reduces the weight and material cost while stabilizing and fixing the waste separator 102. In one embodiment, the base 1021 is a metal support, and a paint or plating protective film layer is coated on the surface of the base 1021 to avoid corrosion of the base 1021 caused by rainwater, sunlight and the like, and to improve the service life of the base 1021 and the waste separator.

In this embodiment, the rotating member 1022 includes the first cylinder 22 and the screen member 24, and the screen member 24 is fixed within the first cylinder 22. In detail, referring to fig. 5c, the first cylinder 22 is a structure in which a sidewall is formed around a center axis of the first cylinder 22 in a circle, and both ends of the first cylinder 22 are opened. The first cylinder 22 is made cylindrical to facilitate rolling itself. In this embodiment, the sidewall of the first cylinder 22 is made of a metal material to provide sufficient strength to avoid deformation during rolling. Further, the surface of the side wall is coated with paint or an electroplating protective film layer to avoid the corrosion of rainwater, sunlight and the like to the first cylinder 22, and the service lives of the first cylinder 22 and the waste separator are prolonged. In this embodiment, the first cylinder 22 includes an outer wall surface and an inner wall surface disposed opposite to each other, the outer wall surface is exposed to the outside, and the inner wall faces the inside of the first cylinder 22, and in one embodiment, both the outer wall surface and the inner wall surface are coated with a paint or plating protective film. Referring to fig. 5a and 5b, the outer wall surface of the first cylinder 22 is slidably connected to the base 1021, and the base 1021 drives the rotary member 1022 to rotate around the central axis. Specifically, the outer wall surface is in contact with the base 1021, and the base 1021 drives the first cylinder 22 to rotate by power supplied from the driving motor.

Specifically to fig. 5d, the screen member 24 is formed by welding a plurality of reinforcing bars, specifically, the screen member 24 is formed by interweaving reinforcing bars arranged in different directions, the screen size of the screen member 24 is designed according to the size of the sand and stone to be screened according to the screening requirement, so that the effect that the sand and stone can pass through and impurities cannot pass through is achieved. In the present embodiment, the screen member 24 is fixed in the first cylinder 22 by welding or the like, and specifically, the screen member 24 is fixed to the inner wall surface of the first cylinder 22. Further, a gap is provided between the screen member 24 and the inner wall surface of the first cylinder 22, in other words, a receiving space is formed between the screen member 24 and the side wall of the first cylinder 22 for receiving sand and stones having passed through the screen member 24. Specifically, the waste material enters the rotary member 1022 from one end thereof, and sand and stone pass through the screen member 24, enter the gap between the screen member 24 and the first cylinder 22, and are discharged from the other end of the rotary member 1022.

The waste material enters the rotary member 1022 from one end of the rotary member 1022, specifically, the waste material enters the screen member 24, in the process of the rotary member 1022 rotating, the waste material rolls in the rotary member 1022, the sand and stone with smaller volume passes through the screen member 24 to enter the gap between the screen member 24 and the inner wall surface of the first cylinder 22, and finally, the impurities such as steel bars, large-volume sand and stone cannot pass through the screen member 24, and then, the impurities such as the steel bars, large-volume sand and stone cannot pass through the screen member 24, are discharged and collected from one end of the screen member 24, thereby realizing separation of the sand and stone from the impurities, the rotary member 1022 rolls to enable the waste material to fully contact with the screen member 24, the sand and stone accumulated on the impurities cannot pass through the screen member 24 to be wasted, the sand and stone screening effect is good, and the screening efficiency is higher.

Referring to fig. 5a, in the present embodiment, the rotary member 1022 is disposed with its central axis inclined to the ground 10. Specifically, the first cylinder 22 and the screen member 24 are inclined to the ground 10, and the waste enters the rotary member 1022 from the end of the rotary member 1022 having a high height, and is discharged from the end of the rotary member 1022 having a low height after being separated into impurities and sand. While the waste material enters from one end and rolls over in the rotating member 1022, the waste material moves toward the other end by its own weight, and it is understood that the waste material is actually a rolling process in the process of moving toward the other end, so that the contact of the waste material with the screen member 24 is uniform, and even the sand and stone stacked on the foreign material can have a chance to pass through the screen member 24. The mode of discharging the impurity relies on the gravity of impurity self, need not to increase extra drive arrangement, simple structure, easy realization. In one embodiment, the included angle between the central axis of the first cylinder 22 and the ground 10 is 3 ° -5 °, so that the requirement of moving the waste from one end to the other end is met, and meanwhile, the moving speed of the waste is not too high due to too large gradient, so that sufficient screening cannot be performed.

Referring to fig. 5d, in the present embodiment, the screen member 24 is cylindrical, and the screen member 24 coincides with the central axis of the first cylinder 22. Specifically, the screen member 24 may be a cylindrical structure with two open ends, which is understood to be that the screen member 24 is a cylindrical structure formed by surrounding a central shaft with a wall surface, and the screen is a hole formed on the wall surface, and the hole is communicated with the inner net of the screen member 24, and the holes are uniformly distributed on the wall surface, so that the wall surface becomes the screen. The cylindrical screen member 24 has the same shape as the first cylinder 22, and the screen member 24 coincides with the center axis of the first cylinder 22, so that the distance between the screen member 24 and the side wall of the first cylinder 22 is made uniform and constant, and the screening effect is improved.

Referring to fig. 5a, in the present embodiment, the rotary member 1022 includes a feeding end 11 and a discharging end 12 disposed opposite to each other, the distance between the feeding end 11 and the ground 10 is greater than the distance between the discharging end 12 and the ground 10, at the discharging end 12, the screen member 24 is provided with a protruding section 13 protruding from the first cylinder 22, and impurities in the waste material are discharged from a port of the protruding section 13. Specifically, the axial length dimension of the screen member 24 is greater than the length dimension of the first cylinder 22, at the feeding end 11, the first cylinder 22 is flush with the screen member 24, so that waste materials can enter the screen member 24 conveniently, at the discharging end 12, the screen member 24 protrudes from the first cylinder 22, that is, the protruding section 13 protrudes from the first cylinder 22, sand and stone passing through the screen member 24 are discharged from the port of the first cylinder 22 located at the discharging end 12, impurities such as reinforcing steel bars which do not pass through the screen member 24 are discharged from the port of the protruding section 13, and the sand and stone are separately discharged and can be separately collected, so that the sand and stone are separated from the impurities.

In one embodiment, the scrap separator further includes a blocking piece 1023, the blocking piece 1023 is disposed at the discharge end 12, the protruding section 13 is accommodated between the pair of blocking pieces 1023, and the blocking piece 1023 is used for preventing the impurity or sand from being sputtered from the discharge end 12. Specifically, the blocking sheets 1023 may be metal plates welded on the base 1021, and the pair of blocking sheets 1023 are arranged at the discharge end 12 in a funnel shape, and since the rotary member 1022 always maintains a rotary state, sand and stone discharged from the discharge end 12 and impurities keep a certain rotation speed to be sputtered outwards, the blocking sheets 1023 block the impurities and sand and stone sputtered outwards, so that the impurities and sand and stone can enter the collected container or the equipment in the next process, the utilization rate of the sand and stone is improved, and waste is reduced.

Referring to fig. 5a and 5b, a driving gear 42 is disposed on the base 1021, the driving gear 42 is connected to a driving motor, a rack 44 is disposed on an outer wall surface of the first cylinder 22, the rack 44 surrounds the outer wall surface of the first cylinder 22, and the driving gear 42 cooperates with the rack 44 to drive the first cylinder 22 to rotate. Specifically, a driving motor is fixed to the base 1021, and the driving motor drives the driving gear 42 to rotate, thereby driving the first cylinder 22 and the rotary member 1022 to integrally rotate. In one embodiment, the number of drive gears 42 is at least two, and the drive gears 42 are symmetrically disposed on diametrically opposite sides of the first cylinder 22. Specifically, when the number of the driving gears 42 is two, the two driving gears 42 are commonly engaged with one rack 44, so that the two driving gears 42 commonly drive the rotary member 1022 to rotate through one rack 44. Further, the driving gears 42 are symmetrically disposed at opposite sides of the first cylinder 22 in the radial direction to symmetrically support the rotary member 1022 from both sides, thereby securing the rotary member 1022.

In this embodiment, the base 1021 is further provided with a driven wheel 52, the driven wheel 52 contacts the outer wall surface of the first cylinder 22, and the driven wheel 52 is used to reduce the friction between the base 1021 and the first cylinder 22. Specifically, the driven wheel 52 has no driving force, the driven wheel 52 contacts with the outer wall surface of the first cylinder 22, the driven wheel 52 supports the first cylinder 22 and the rotating member 1022 on the base 1021, and the friction force between the first cylinder 22 and the driven wheel 52 drives the driven wheel 52 to rotate in the rotating process of the rotating member 1022, in other words, the friction force between the first cylinder 22 and the base 1021 is changed into rolling friction force by the driven wheel 52, so that energy loss is reduced, and the efficiency of driving the rotating member 1022 to rotate is higher. In one embodiment, the number of driven wheels 52 is at least two, the driven wheels 52 are symmetrically disposed on diametrically opposite sides of the first cylinder 22, and the driven wheels 52 support the rotary member 1022 from both sides, securing the rotary member 1022. In one embodiment, the outer wall surface of the first cylinder 22 is further surrounded by a circle of guide rails 54, and the guide rails 54 cooperate with the driven wheel 52 to fix the movement track of the driven wheel 52 on the first cylinder 22, so as to keep the first cylinder 22 and the rotating member 1022 rotating around the central axis.

3. Sand bailing machine (refer to a first sand bailing machine 106, a second sand bailing machine 109 can be referenced)

Referring to fig. 6a, a sand bailing machine 106 according to an embodiment of the present invention is used to clean sand and stones with small particles formed after the construction waste residues are crushed, stirred, screened, etc., and separate fine impurities in the sand and stones from the sand and stones to obtain clean sand and stones. Specifically, the sand bailing machine 106 includes a first frame 1061, a driving wheel 1062, a driven wheel 1063, a chain ring 1065, and a skip bucket 1068. The first support 1061 is a main support of the sand bailing machine 106, the first support 1061 is fixed on the ground 10, and the first support 1061 is a main supporting structure, so that the sand bailing machine is made of a material with high strength such as metal. The first frame 1061 also includes a drive motor, gear set, etc. In one embodiment, the bottom end of the first bracket 1061 is secured to the ground 10 by screws or the like to allow the first bracket 1061 to be stably secured to the ground 10. In this embodiment, the sedimentation tank 105 is trapped in the ground 10, the first support 1061 is fixed on the side of the sedimentation tank 105, the sedimentation tank 105 is a holding tank for holding sand and stone raw materials, the sedimentation tank 105 also contains water which continuously flows, and the sand and stone is soaked in the water.

It should be understood that the sedimentation tank 105 in this embodiment corresponds to the first water tank 105 in the construction waste treatment system of the present invention, and that the sedimentation tank 105 may be the second water tank 108.

In this embodiment, the driving wheel 1062 is rotatably connected to the top of the first support 1061, the driven wheel 1063 is located in the sedimentation tank 105 and rotatably connected to the bottom 1051 of the sedimentation tank 105, the chain ring 1065 is sleeved on the driving wheel 1062 and the driven wheel 1063, and the chain ring 1065 is stretched between the driving wheel 1062 and the driven wheel 1063. Specifically, the rotation shaft of the driving wheel 1062 is rotatably connected to a driving motor through a gear set, the driving motor drives the driving wheel 1062 to rotate, in an embodiment, the driving wheel 1062 is a cylindrical rolling wheel, so that the contact area between the chain ring 1065 and the driving wheel 1062 is increased, and the energy transmission efficiency of the driving wheel 1062 driving the chain ring 1065 to rotate is improved. The driven wheel 1063 is positioned at the bottom 1051 of the sedimentation tank 105, and the driven wheel 1063 and the driving wheel 1062 stretch the chain ring 1065, so that the chain ring 1065 is driven to move through the cooperation of the driving wheel 1062 and the driven wheel 1063. In one embodiment, the driven wheel 1063 is a cylindrical rolling wheel, so as to increase the contact area between the chain ring 1065 and the driven wheel 1063, which is beneficial to improving the supporting effect of the driven wheel 1063 on the chain ring 1065. As shown in fig. 6a, the drive wheel 1062 drives the sprocket 1065 to rotate counterclockwise. In one embodiment, the loops 1065 are partially straightened by the force of gravity of the loops 1065 and the stretching forces of the primary 1062 and secondary 1063 wheels. In one embodiment, the chain ring 1065 includes a plurality of links, each of which is connected end to form a closed chain ring 1065, and in particular, each of which is connected in an articulated manner so as to have a certain range of motion between each of the links.

In this embodiment, a dump box 1068 is secured to the outside of the chain loop 1065 for agitating and scooping up sand and stones in the sedimentation tank 105. Specifically, the skip 1068 is fixed to the outer side of the link 1065 by welding or the like. It is noted that the outer side of the chain ring 1065 is the side of the chain ring 1065 facing away from the driving wheel 1062 and the driven wheel 1063, and the inner side of the chain ring 1065 is the side of the chain ring 1065 contacting the driving wheel 1062 and the driven wheel 1063. In one embodiment, each skip 1068 is welded to one of the links, the skip 1068 being synchronized with the connected motion. In this embodiment, the skip 1068 enters the sedimentation tank 105 or leaves the sedimentation tank 105 under the driving of the chain ring 1065, and when the skip 1068 enters the sedimentation tank 105, water and sand in the sedimentation tank 105 are stirred and mutually ground, so that impurities covered on the surface of the sand are separated from the sand, and a water vapor layer covered on the sand is damaged, which is beneficial to the subsequent dehydration process. During the process that the skip 1068 passes through the bottom of the sedimentation tank 105 and rises toward the water surface, the skip 1068 scoops up the sand and the impurities and water separated from the sand and the stone are actually scooped up by the skip 1068. After the chain ring 1065 drives the skip 1068 to rise and move out of the water surface, water and impurities with smaller volume leak out from the bottom of the skip 1068, so that clean sand and stones are obtained. The sand and stone cleaning process is simple, the cleaning effect is good, the cleaning process is continuous and uninterrupted, and the cleaning efficiency is high.

In this embodiment, the connection line between the driving wheel 1062 and the driven wheel 1063 is inclined to the ground 10. Specifically, the line connecting the primary wheel 1062 and the secondary wheel 1063 forms an angle of 45 ° to 60 ° with the ground 10, so that the skip 1068 moves in a direction inclined to the ground 1045 ° to 60 °. The ramp up increases the formation of the skip 1068 during the ascent, as compared to the ascent perpendicular to the ground 10, thereby providing more time for water and impurities to escape from the skip 1068.

Referring to fig. 6b, in the present embodiment, the skip 1068 includes a receiving portion 16 and a protruding portion 15, the protruding portion 15 is convexly disposed at an edge of the receiving portion 16 for scooping up the sand and stone in the sedimentation tank 105, and the receiving portion 16 is provided with a filtering hole 17 for leaking out water and impurities in the sand and stone. Specifically, a filter hole 17 is provided at the bottom end of the receiving portion 16 to facilitate leakage of water and foreign substances. In one embodiment, the size of the filter openings 17 is designed according to the particle size of the impurities that are to leak out.

In this embodiment, the top of the first frame 1061 is further provided with a discharge chute 14, the discharge chute 14 being inclined to the ground 10, the discharge chute 14 being used for guiding out sand and stones transported to the top of the first frame 1061 by the skip 1068. Specifically, the discharge guide groove 14 is inclined to the ground 10, and the skip bucket 1068 lifts the sand and stone to a high position when transporting the sand and stone, and the discharge guide groove 14 transports the sand and stone from the high position to a low position, so that the sand and stone is transported to the next treatment process, the sand and stone are transported by utilizing the self gravity of the sand and stone, the sand and stone transportation efficiency is high, and a power device is not required to be additionally provided.

The driving wheel 1062 drives the chain ring 1065 to drive the tipping bucket 1068 to move, the tipping bucket 1068 agitates the sand and stones in the sedimentation tank 105, so that the sand and stones are mutually ground, impurities covered on the surfaces of the sand and stones are separated from the sand and stones, the tipping bucket 1068 scoops up the mixture of the sand and stones, partial impurities and water in the sedimentation tank 105, the tipping bucket 1068 leaks out of the filtering holes 17 at the bottom of the tipping bucket 1068 from the sedimentation tank 105 to the top of the first support 1061, and therefore clean sand and stones are obtained.

In this embodiment, the sand bailing device 106 further includes a second support 1066, the second support 1066 includes a first end 1064 and a second end 1067 that are disposed opposite to each other, the first end 1064 is fixed on top of the first support 1061, the driving wheel 1062 is rotatably connected to the first end 1064, the second end 1067 is fixed on the bottom 1051 of the sedimentation tank 105, and the driven wheel 1063 is rotatably connected to the second end 1067. Specifically, the second bracket 1066, the first bracket 1061, and the ground 10 form a triangle, thereby facilitating structural stability. Further, the second support 1066 is used as a supporting structure for carrying the driving wheel 1062 and the driven wheel 1063, the rotation axis of the driving wheel 1062 is fixed at the first end 1064, the rotation axis of the driven wheel 1063 is fixed at the second end 1067, and the second support 1066 maintains the distance between the driving wheel 1062 and the driven wheel 1063, so as to determine the ascending height of the skip 1068. In one embodiment, the second end 1067 of the second bracket 1066 contacts the bottom 1051 of the sedimentation tank 105 and is secured to the bottom 1051 by screws or the like. In this embodiment, the second support 1066 may be two symmetrical rod-shaped supports arranged in parallel, so that simplifying the structure of the second support 1066 is beneficial to reducing the overall weight of the sand bailing machine 106 and saving cost.

Referring to fig. 6a, in the present embodiment, an auxiliary wheel 1069 is disposed on the second bracket 1066, and the auxiliary wheel 1069 abuts against the inner side of the chain ring 1065 to support the chain ring 1065. Specifically, the auxiliary wheel 1069 is a non-actively rotating roller, the surface of the auxiliary wheel 1069 contacts the inner side of the chain ring 1065, and the rotation of the chain ring 1065 drives the auxiliary wheel 1069 to rotate, in other words, the auxiliary wheel 1069 makes rolling friction between the chain ring 1065 and the second bracket 1066, and the auxiliary wheel 1069 plays a role of supporting the chain ring 1065 and the tipping bucket 1068, and simultaneously reduces friction resistance when the chain ring 1065 rotates.

In one embodiment, the auxiliary wheels 1069 are disposed between the driving wheel 1062 and the driven wheel 1063, and the number of auxiliary wheels 1069 is plural, and the intervals between the auxiliary wheels 1069 are the same. Specifically, the auxiliary wheels 1069 support the chain ring 1065 together, so that the chain ring 1065 with a longer length is integrally supported, and the intervals between the auxiliary wheels 1069 are the same, so that the stress of each part of the chain ring 1065 is the same, the chain ring 1065 can be integrally flattened, and the rotation of the chain ring 1065 and the lifting of the tipping bucket 1068 are facilitated.

The embodiment of the invention also provides a sand and stone cleaning method, the sand and stone cleaning method utilizes the sand remover 106 and the sedimentation tank 105 provided by the embodiment of the invention, specifically, the sand remover 106 comprises a first bracket 1061, a driving wheel 1062, a driven wheel 1063, a chain ring 1065 and a tipping bucket 1068, the first bracket 1061 is fixed on the ground 10, the driving wheel 1062 is rotationally connected to the top of the first bracket 1061, the driven wheel 1063 is positioned in the sedimentation tank 105 and rotationally connected to the bottom 1051 of the sedimentation tank 105, the chain ring 1065 is sleeved on the driving wheel 1062 and the driven wheel 1063, the chain ring 1065 is stretched between the driving wheel 1062 and the driven wheel 1063, the tipping bucket 1068 is fixed on the outer side of the chain ring 1065, the driving wheel 1062 drives the chain ring 1065 to drive the tipping bucket 1068 to move, and the tipping bucket 1068 agitates sand and stone in the sedimentation tank 105 so as to grind sand and stone mutually.

In one embodiment, water is continuously added to the sedimentation tank 105 during the sand cleaning, the sedimentation tank 105 is provided with an overflow port, and a part of impurities decomposed by the ground sand floats on the water surface and is discharged along with the water from the overflow port. In this embodiment, after water is added into the sedimentation tank 105, the water flow plays a certain stirring role in the sedimentation tank 105, meanwhile, the skip bucket 1068 stirs the sand and stones in the water, impurities on the surfaces of the sand and stones are separated from the sand and stones, part of impurities with smaller density float on the water surface, and when the water surface height in the sedimentation tank 105 reaches the position of the overflow port, the impurities are discharged from the overflow port together with the water, so that part of impurities are removed.

In one embodiment, the connection line between the driving wheel 1062 and the driven wheel 1063 is inclined to the ground 10, the skip 1068 is provided with a filtering hole 17, and water and impurities are leaked through the filtering hole 17 during the ascending process of the skip 1068.

4. Sand screening machine 110

Referring to fig. 7a, 7b and 7c, an embodiment of the present invention provides a sand screening machine 110 for separating sand particles and impurities such as stones from a sand-stone mixture, collecting the pure sand particles for reuse, and discharging and collecting the impurities such as stones. The sand screening machine 110 provided by the embodiment of the invention comprises a first motor 1101, a first cylinder 1102 and a second cylinder 1103. Specifically, the first motor 1101 is disposed on the ground 10, and of course, the first motor 1101 may be directly fixed on the ground 10, or may be fixed on the ground 10 by a bracket fixed on the ground 10. In one embodiment, the first motor 1101 may be a stepper motor to provide the driving force.

Referring to fig. 7b, the first cylinder 1102 is disposed on the ground 10, specifically, the first cylinder 1102 is erected on the ground 10 by a bracket, in one embodiment, the sand screening machine 110 further includes a first rotating shaft 1104, the first cylinder 1102 is sleeved on the first rotating shaft 1104, and the first cylinder 1102 is fixedly connected with the first rotating shaft 1104, and can be rotatably connected with two ends of the first rotating shaft 1104 by the bracket, so that the first cylinder 1102 is erected on the ground 10. In this embodiment, the first cylinder 1102 includes the first outer wall 21, and it is understood that the first cylinder 1102 is a structure in which the first outer wall 21 is formed around the central axis of the first cylinder 1102 in a circle, and both ends of the first cylinder 1102 are open. In one embodiment, the first outer wall 21 is provided with through holes 600, and the through holes 600 communicate the inside of the first cylinder 1102 with the outside, specifically, the number of through holes 600 is plural, and the through holes 600 have the same size and uniformly extend over the first outer wall 21. Further, the size of the through hole 600 is designed according to the size of the sand grain, specifically, the size of the through hole 600 can pass the sand grain with small particle, but can not pass the impurities such as stones with volume larger than the sand grain, and the through hole 600 with different sizes can be designed according to the kind of the sand-stone mixture and the size of the target sand grain. In this embodiment, the first motor 1101 is connected to the first cylinder 1102 and is used for driving the first cylinder 1102 to rotate around a central axis, specifically, the first motor 1101 is connected to the first rotating shaft 1104, and the first motor 1101 drives the first cylinder 1102 to rotate by driving the first rotating shaft 1104 to rotate. In one embodiment, the first shaft 1104 coincides with the central axis of the first cylinder 1102, and rotation of the first shaft 1104 may drive the first cylinder 1102 to rotate about the central axis. In this embodiment, a speed reducer is further disposed between the first motor 1101 and the first shaft 1104, and the speed reducer transmits the torque output by the first motor 1101 to the first shaft 1104, so that the first shaft 1104 obtains a suitable rotation speed. In this embodiment, the sand and stone mixture enters the first cylinder 1102 from one end of the first cylinder 1102, and in particular, the first cylinder 1102 includes a feed port 1106 and a discharge port 1105 disposed opposite each other, and the sand and stone mixture enters the first cylinder 1102 from the feed port 1106 to tumble within the first cylinder 1102. In this embodiment, in the process that the sand and stone mixture rolls in the first barrel 1102, sand particles leak from the through holes 600 of the first outer wall 21, and because the first barrel 1102 continuously rolls, sand and stone mixture entering the first barrel 1102 is prevented from being stacked together, so that sand particles stacked on impurities cannot enter the through holes 600 of the first outer wall 21, and the sand and stone mixture is fully contacted with the first outer wall 21, so that the screening effect is improved, and waste is avoided.

Referring to fig. 7c, the second cylinder 1103 is sleeved outside the first cylinder 1102, in this embodiment, the second cylinder 1103 and the first cylinder 1102 are relatively movable, in one embodiment, the second cylinder 1103 is fixed relative to the ground 10, and the first cylinder 1102 is rotatable about a central axis. The second cylinder 1103 includes a second outer wall 31, and it is understood that the second cylinder 1103 is a structure in which the second outer wall 31 is formed around a circumference around a central axis of the second cylinder 1103, and both ends of the second cylinder 1103 are open. In one embodiment, the second outer wall 31 is provided with through holes 600, and the through holes 600 communicate the inside of the second cylinder 1103 with the outside, specifically, the number of through holes 600 is plural, and the through holes 600 have the same size and uniformly extend over the second outer wall 31. Further, the size of the through hole 600 is designed according to the size of the sand grain, specifically, the size of the through hole 600 can pass the sand grain with small particle, but can not pass the impurities such as stones with volume larger than the sand grain, and the through hole 600 with different sizes can be designed according to the kind of the sand-stone mixture and the size of the target sand grain. Sand particles leaking out of the through holes 600 in the first outer wall 21 enter the second cylinder 1103, specifically, between the first outer wall 21 and the second outer wall 31, so as to be screened by the through holes 600 in the second outer wall 31. Sand particles sequentially pass through the first outer wall 21 and the second outer wall 31, then leak out of the second outer wall 31, a container can be placed outside the second outer wall 31 to collect pure sand particles, and impurities are discharged from one end of the first cylinder 1102 or the second cylinder 1103. Specifically, the impurities may be discharged through two paths, and the impurities that have not passed through the through-hole 600 of the first outer wall 21 are discharged from one end of the first cylinder 1102, i.e., the discharge port 1105, and the impurities that have passed through the through-hole 600 of the first outer wall 21 and have not passed through the through-hole 600 of the second outer wall 31 are discharged from one end of the second cylinder 1103, i.e., one end of the second cylinder 1103 corresponding to the discharge port 1105 is opened.

In the rolling process of the first cylinder 1102, the first outer wall 21 screens sand and stone mixtures for the first time, namely sand particles pass through the through hole 600 of the first outer wall 21, impurities such as sand particles with larger particles are discharged from one end of the first cylinder 1102, sand and stone entering between the first cylinder 1102 and the second cylinder 1103 are screened for the second time, namely sand particles pass through the through hole 600 of the second outer wall 31 and are discharged from one end of the second cylinder 1103, the purity of the sand particles is effectively improved in the twice screening process, the screening effect is good, and the screening efficiency is higher.

In this embodiment, the first cylinder 1102 is disposed with its central axis inclined to the ground 10. Specifically, the first rotation axis 1104 coincides with the central axis of the first cylinder 1102, and the first rotation axis 1104 is placed obliquely to the ground 10. In one embodiment, the distance between the end of the feeding port 1106 of the first cylinder 1102 and the ground 10 is greater than that of the end of the discharging port 1105, the sand and stone mixture entering the first cylinder 1102 through the feeding port 1106 rolls towards the discharging port 1105 by self gravity in the rolling process of the first cylinder 1102, sand particles leak out of the through holes 600 of the first outer wall 21, and impurities such as stones roll on the first outer wall 21 and roll to the discharging port 1105 to be collected by a container placed at the discharging port 1105. The mode of discharging the impurity relies on the gravity of impurity self, need not to increase extra drive arrangement, simple structure, easy realization. In one embodiment, the central axis of the first cylinder 1102 forms an angle of 3 ° to 5 ° with the ground 10.

In this embodiment, the central axis of the first cylinder 1102 is coaxial with the central axis of the second cylinder 1103, and specifically, the distance between the first outer wall 21 and the second outer wall 31 is kept constant, so that uniform screening of the sand-stone mixture is facilitated. In one embodiment, the aperture of the through-hole 600 of the first outer wall 21 is larger than the aperture of the through-hole 600 of the second outer wall 31. The through hole 600 of the first outer wall 21 is used for first screening of the sand and stone mixture, the through hole 600 of the second outer wall 31 is used for second screening of the sand and stone mixture, the first screening can be used for primary screening, impurities with larger particles in the sand and stone mixture are screened out, part of impurities are still mixed in the obtained sand particles, the second screening can be used for fine screening, impurities with smaller particles in the sand and stone mixture are screened out, and pure sand particles are obtained. The twice classified screening can obtain better screening effect, and specifically, if only carry out once screening, through-hole 600 size is too big can lead to screening to obtain sand grain purity not high, and through-hole 600 size undersize can lead to large granule impurity in the screening process to block up through-hole 600, and partial sand grain can't pass through-hole 600, and screening efficiency is low, extravagant raw and other materials. The first screening screen removes large particle impurities, the second screening screen removes small particle impurities, the screening efficiency is high, and the screening effect is good.

In one embodiment, the sand screening machine further comprises a second motor connected to the second cylinder 1103, and the second motor is used for driving the second cylinder 1103 to rotate around the central shaft. The second cylinder 1103 rotates with the central shaft, sand and stone mixture leaks from the through hole 600 of the second outer wall 31 in the process of rolling in the second cylinder 1103, and because the second cylinder 1103 continuously rolls, sand and stone mixture that can avoid entering in the second cylinder 1103 stacks together and lead to the sand and stone mixture that stacks on impurity can't get into the through hole 600 of the second outer wall 31, and sand and stone mixture fully contacts with the second outer wall 31, has improved the effect of screening, avoids extravagant.

In one embodiment, the rotation direction of the first cylinder 1102 is opposite to that of the second cylinder 1103, and the screening process is opposite to that of the two screening processes, so that the screening effect can be improved. In one embodiment, a housing is further disposed outside the second cylinder 1103, where the housing is used to protect the second cylinder 1103 and prevent the second cylinder 1103 from being difficult to collect after sand particles are thrown out during rotation.

In this embodiment, the first cylinder 1102 includes a plurality of first sub-cylinders, and the first sub-cylinders are spliced end to form the first cylinder 1102. The length of the first sub-cylinder is shorter, a plurality of first sub-cylinders can be spliced to form a large-size first cylinder 1102, and the splicing mode is simple and easy to realize, so that the sand screening machine is convenient to assemble and transport.

In this embodiment, the second cylinder 1103 includes a plurality of second sub-cylinders, and the second sub-cylinders are spliced end to form the second cylinder 1103. The length of the second sub-cylinder is shorter, a plurality of second sub-cylinders can be spliced to form a large-size second cylinder 1103, and the splicing mode is simple and easy to realize, so that the sand screening machine is convenient to assemble and transport.

In the sand screening machine provided by the embodiment of the invention, the first outer wall 21 and the second outer wall 31 are formed by knitting latticed metal wires. Specifically, like a metal gauze, the wire weave can easily obtain the through holes 600 of a desired size, and the density of the through holes 600 is large. Compared with the punching on the outer wall, the metal wire braiding can form the first outer wall 21 or the second outer wall 31, the metal wire braiding is small in mass and easy to assemble, the driving force required to be provided by the motor is small, and the energy consumed by the sand screening machine in the sand screening process is small.

5. Sand washer 112

Referring to fig. 8a to 8e, a sand washer 112 according to a preferred embodiment of the present invention includes a sand washer 01, a support frame 02 fixedly connected to the sand washer 01, a rotating wheel 10-1 rotatably connected to the support frame 02, and a motor 03 for driving the rotating wheel 10-1 to rotate, wherein the rotating wheel 10-1 includes a rotating shaft 04 erected on the support frame 02, a circular screen 06 connected to the rotating shaft 04 through a support rod 05, and a plurality of partition boards 011 fixedly connected to an outer peripheral surface of the screen 06 and arranged in parallel in a circumferential direction, a plurality of screen 012 are fixedly connected between two adjacent partition boards 011, one end of the screen 012 is connected to the screen 06, the opposite end of the screen 012 is disposed away from the screen 06 and is inclined toward a moving direction of the rotating wheel 10-1, so that an included angle a between a tangent line of a connection point of the screen 012 and the screen 06 is an acute angle, a plurality of the screen 012 are arranged along a central array of the rotating shaft 04, a plurality of screen 012 are arranged in a first through holes (not shown in the figure) on the screen 06, and a second through hole 0121 is arranged on the screen 012.

In this embodiment, by providing the plurality of separators 011 and the screen plate 012, and providing the screen 06 with the first through hole and providing the screen 012 with the second through hole 0121, when the rotating wheel 10-1 rotates, the screen 06 and the screen plate 012 can both pass mud in sand, and the sand is washed thoroughly, thereby improving the sand washing efficiency without reworking.

Specifically, the structures of the first through hole and the second through hole 0121 may be different, for example, the first through hole is circular, the second through hole 0121 is a strip-shaped hole, preferably, the structures of the first through hole and the second through hole 0121 are the same, for example, the first through hole and the second through hole are both through holes or are strip-shaped holes, and the size of the first through hole is 1-10 mm, wherein when the first through hole is a circular hole, the size refers to the diameter of the circle, and when the first through hole is a strip-shaped hole, the size refers to the size of the largest object through which the hole can pass. Further preferably, the size of the first through hole is 3-7 mm, and further preferably, the size of the first through hole is 4-6 mm.

Specifically, the supporting frames 02 are arranged on two opposite sides of the sand washing pool 01, when the rotating wheel 10-1 is connected to the supporting frames 02, a part of the rotating wheel 10-1 is positioned in the sand washing pool 01, a sediment mixture is contained in the sand washing pool 01, after the sand washing pool 01 is filled with water, a part of mud in the sediment mixture is melted into the water to form muddy water, the sand cannot pass through the first through holes and the second through holes 0121 due to the fact that the sand is insoluble in the water and has larger particle size, the mud structure is unstable, in the rotating process of the rotating wheel 10-1, the mud with larger particle size is decomposed into mud with small particle size along with friction with the sand and the rotating wheel 10-1, and the mud leaks into the sand washing pool 01 from the first through holes and the second through holes 0121 to be contacted with the water to be dissolved in the water, so that sand washing is completed.

Set up and set up second through-hole 0121 on the sieve 012, compare the scheme that the sieve 012 did not set up the hole, because the mud that the particle diameter is great can leak down through first through-hole, also can leak on screen cloth 06 through second through-hole 0121, the rethread first through-hole leaks to wash sand pond 01 in mix with water, make mud decomposition rate faster, make the particle diameter of the mud that gets into in washing sand pond 01 smaller, more soluble in water, make washing sand speed faster.

In this embodiment, the mud dissolved in water is located at the upper layer of the muddy water in the sand washing tank 01, and the separation of the mud in the sand is realized by pumping away the muddy water at the upper layer, so that the mud can be separated out by using a sedimentation process later, and the mud with higher purity is obtained.

In order to remove the muddy water in the sand washing pool 01, a water outlet 33 can be arranged on the sand washing pool 01, the water outlet 33 is arranged near the upper edge of the sand washing pool 01, the muddy water in the sand washing pool 01 can overflow out, and the water outlet 33 can be connected through a pipeline or a canal so as to carry away the muddy water. It will be appreciated that a plurality of water outlets 33 may be provided in the sand wash basin 01 for speed.

In this embodiment, the sand washing pool 01 is further connected with a supporting platform 07, and the motor 03 is disposed on the supporting platform 07. The supporting platform 07 comprises a supporting inclined plate 08, and the supporting platform 07 is arranged on the sand washing pool 01 to set the motor 03, so that the motor 03 does not need to be arranged on the site in a space finding way, the occupied space of equipment is optimized, and the production line is more compact.

In this embodiment, a feeding end 1121 is disposed in a direction perpendicular to the axial direction of the rotating shaft 04, and the feeding end 1121 is disposed obliquely, so that sediment enters the sand washing pool 01 under the action of gravity.

Specifically, the feeding end 1121 may be one side of the sand washing tank 01, or an inclined plate structure may be separately provided on the sand washing tank 01.

Further, a discharge end 1122 can be provided on the other side of the sand washing tank 01 opposite to the feed end 1121, and the discharge end 1122 can also be arranged in an inclined manner, so that the sand washing tank 01 is boat-shaped.

In one embodiment, referring to fig. 1 and fig. 2, a plurality of flat plates 013 are fixedly connected between two adjacent baffle 011, the flat plates 013 are arranged between two adjacent screen plates 012, one end of each flat plate 013 is connected to the screen 06, the opposite other end is far away from the screen 06 and is arranged towards the moving direction of the rotating wheel 10-1, so that the tangent line of the connecting point of the flat plates 013 and the screen 06 is acute angle with the included angle b of the flat plates 013, and a plurality of flat plates 013 are arranged along the central array of the rotating shaft 04.

Specifically, the screen plates 012 and the flat plates 013 are staggered between two adjacent baffle plates 011, and in a preferred embodiment, the inclination angle of the screen plates 012 and the flat plates 013 on the screen 06 is the same. In a further preferred embodiment, the distance between the screen plate 012 and the adjacent two flat plates 013 is equal, and the distance between the flat plates 013 and the adjacent two screen plates 012 is equal.

Because the sediment mixture also contains sand with smaller particle size, the sand with smaller particle size can leak down through the screen plate 012 and the screen 06, so that the sand pushed forward when the rotary wheel 10-1 rotates is less, the flat plate 013 is arranged, no holes are formed in the flat plate 013, the sand with smaller particle size is received by the flat plate 013 after leaking down through the screen plate 012, and then the sand is pushed forward along with the rotation of the rotary wheel 10-1, so that the discharge speed of the sand is improved.

Further, the separator includes a first separator 011, a second separator 021, a third separator 031, a fourth separator 041 and a fifth separator 051, a first sieve plate 012 and a first flat plate 013 which are adjacent are arranged between the first separator 011 and the second separator 021, a second sieve plate 022 and a second flat plate 023 which are adjacent are arranged between the second separator 021 and the third separator 031, a third sieve plate 032 and a third flat plate 033 which are adjacent are arranged between the third separator 031 and the fourth separator 041, a fourth sieve plate 042 and a fourth flat plate 043 which are adjacent are arranged between the fourth separator 041 and the fifth separator 051, the first sieve plate 012 is flush and coplanar with the third flat plate 033, and the first flat plate 013 is flush and coplanar with the third sieve plate 032.

Through the arrangement, the partition plates are increased, so that the effective use area of the rotating wheel 10-1 is increased, and through the arrangement that the first screen plate 012 is flush and coplanar with the third screen plate 033, the first screen plate 013 is flush and coplanar with the third screen plate 032, the sand pushing speed between the partition plates is different, and the discharge end 1122 can obtain a relatively continuous sand discharging speed, so that the layout of the subsequent process is facilitated.

Further, the second screen plate 022 is flush and coplanar with the fourth flat plate 043, and the second flat plate 023 is flush and coplanar with the fourth screen plate 042. Further maintaining the sand discharge rate continuous.

Further, the second screen plate 022 is disposed at a middle position between the first screen plate 012 and the first flat plate 013, and the second flat plate 023 is disposed at a middle position between the first flat plate 013 and the first screen plate 012. So set up, the advantage of the maximize has utilized a plurality of baffles, compares the scheme that a baffle or a plurality of baffles but the whole parallel and level of sieve wherein set up, and the ejection of compact is continuous stable, and the required driving force on the runner 10-1 is comparatively stable all the time in addition, has also saved the consumption of motor 03.

The first partition plate 011 and the fifth partition plate 051 are located at the outermost side of the rotating wheel 10-1, and saw teeth 052 distributed along the circumferential direction are arranged on the outer edges of the first partition plate 011 and the fifth partition plate 051. The purpose of the serrations 052 is to loosen the silt mixture on the side of the basin 01 and avoid seizing the wheel 10-1.

Referring to fig. 8e, a schematic diagram of a sand washer 112 according to this embodiment in the actual use process is shown, in which 4 sand washers are connected in series, in which, a feeding end 1121 enters a silt mixture 01, water is introduced to form muddy water, a rotating wheel 10-1 rotates clockwise to stir and rotate the silt and sand in the silt mixture 01 sufficiently, the silt and sand are decomposed by friction with the rotating wheel 10-1, and the silt and sand leak from a screen and a sieve plate in the rotating wheel 10-1 into a sand washing pool and are dissolved in the water, in which, the structure of pumping the muddy water on the upper layer in the sand washing pool is omitted, and the washed sand is discharged from a discharging end 1122 to complete the sand washing process.

Because the modern production line requires high sand washing efficiency and large sand discharge amount, in actual production, although a single sand washer can achieve a good sand washing effect, the sand content in washed sand can be very low, but the sand discharge amount of the single sand washer is small, and a mode that a plurality of sand washers are connected in series is adopted, wherein the technical requirement of each sand washer is slightly lower than that of the case of using the single sand washer, so that the aim of discharging a large amount of sand is fulfilled, and 4 sand washers connected in series are taken as an example: the discharge end 1122 of the first sand washer is tightly abutted against the feed end 1123 of the second sand washer, the discharge end 1124 of the second sand washer is tightly abutted against the feed end 1125 of the third sand washer, the discharge end 1126 of the third sand washer is tightly abutted against the feed end 4011127 of the fourth sand washer, the discharge end 1128 of the fourth sand washer is connected with a discharge structure 1129, such as a conveyor belt, etc., and the first rotary wheel 10-1, the second rotary wheel 10-2, the third rotary wheel 10-3 and the fourth rotary wheel 10-4 are rotated clockwise to stir the sediment mixture in the respective sand washing tanks and push the sand forwards, and the mud flows away from the muddy water in the respective sand washing tanks, passes through the sand washing of the 4 sand washing machines, so that the purity of the finally obtained sand at the discharge structure 1129 is high and the mud content is low.

6. Coarse sand dehydrator 113 (fine sand dehydrator 214 can refer to)

Referring to fig. 9a to 9b, a vibrating dewatering screen according to a preferred embodiment of the present invention includes a screen box 610 and a supporting member 640, the screen box 610 is supported by the supporting member 640, the supporting member 640 has a damping function, the screen box 610 includes a screen surface 611, a first side frame 612 and a second side frame 613, the first side frame 612 and the second side frame 613 are oppositely disposed on two sides of the screen surface 611, a first cross beam 621 is disposed between the first side frame 612 and the second side frame 613, a first motor 631 and a second motor 632 are fixedly connected to the first cross beam 621, output shafts of the first motor 631 and the second motor 632 are respectively connected to eccentric blocks (not shown), the first motor 631 and the second motor 632 synchronously rotate in opposite directions, the eccentric blocks form two vibrators, component forces generated by the two vibrators along the vibrating directions are superimposed, and the centrifugal forces in opposite directions are offset, so that the screen box 610 periodically moves along the linear direction, and the size 601 of the screen is smaller than the size 601 of the screen.

In this embodiment, by setting the first motor 631 and the second motor 632 and enabling the first motor 631 and the second motor 632 to rotate synchronously in opposite directions, the screen box 610 is made to perform periodic reciprocating motion along a straight line direction, and the size of the screen holes 601 is smaller than that of the materials, so that the materials with smaller sizes cannot leak down from the screen holes 601, and the problems of low vibration dehydration efficiency and serious loss of fine sand materials are solved.

In this embodiment, the working principle of vibration dehydration is that a dual-motor self-synchronization technology is adopted, two vibrators are formed by arranging eccentric blocks, two vibrators arranged side by side are arranged on the screen box 610 to perform synchronous reverse operation, and the centrifugal force generated by the two groups of eccentric masses is superposed along the component force of the vibration direction, and the reverse centrifugal force is counteracted, so that a single excitation vibration without the vibration direction is formed, and the screen box 610 performs reciprocating linear motion. The first beam 621 is further provided with a platform 623 for supporting the first motor 631 and the second motor 632, and the platform 623 may be parallel to the screening surface 611 or may have an inclined angle.

In this embodiment, the first motor 631 and the second motor 632 further include a housing, and the output shaft and the eccentric block connected to the output shaft are covered by the housing, so that the first motor 631 and the second motor 632 are integrally formed. The first motor 631 and the second motor 632 are disposed in a direction along the screen surface 611, i.e., in a direction extending from the plane of the first side frame 612 and the second side frame 613, and the first motor 631 and the second motor 632 may be disposed in parallel. The directions of the first motor 631 and the second motor 632 refer to the extending direction of the output shaft.

In this embodiment, the screen box 610 includes a feeding end and a discharging end, the first motor 631 and the second motor 632 are along the direction from the feeding end to the discharging end, that is, the rotating shafts of the first motor 631 and the second motor 632 are parallel to the direction from the feeding end to the discharging end, the centrifugal forces of the eccentric blocks connected by the rotating shafts of the first motor 631 and the second motor 632 cancel each other, and only the vibration along the direction from the feeding end to the discharging end is provided, so that the vibration of the screen box 610 is regular, the material is dehydrated more uniformly in the screen box 610, and the dehydration efficiency is improved.

In the present embodiment, the screen holes 601 on the screen surface 611 are arranged in an array, which is generally rectangular, but may be circular. The mesh 601 is a generally circular through hole, where the size of the mesh 601 refers to the diameter of the circular mesh, and the mesh 601 may be a rectangular through hole, where the size of the mesh 601 refers to the distance between two opposite sides of the rectangular mesh.

Several preferred size ranges of the sieve holes 601 are given below, and the size of the sieve holes 601 is smaller than that of the materials, so that the materials with smaller sizes cannot leak down from the sieve holes 601, and the problem of serious loss of fine sand materials is solved.

Further, the size of the mesh 601 is 0.005-0.035 mm.

Further, the size of the mesh 601 is 0.010 to 0.030mm.

Further, the size of the mesh 601 is 0.010mm.

Further, the size of the mesh 601 is 0.030mm.

In one embodiment, referring to fig. 9b, the screen surface 611 is disposed inclined to the base 642, and an included angle e formed between the screen surface 611 and a reference surface of the base 642 is 0 to 20 °.

In this embodiment, the feeding end of the screen surface 611 has a higher height than the discharging end, that is, the screen surface 611 is inclined downward from the feeding end to the discharging end, so that the material moves on the screen surface 611 faster, the dewatering efficiency can be accelerated, and of course, the included angle e formed by the screen surface 611 and the reference surface of the base 642 should not be too large, so that the material is prevented from staying on the screen surface 611 too short to be dewatered.

The base 642 may be a truss structure, and the base 642 further has another base 641 disposed opposite to the base 642, and the other base 641 and the base 642 are generally integrated. The reference surface of the base 642 may be a horizontal surface.

In another embodiment, the screen surface 611 has a greater height at the discharge end than at the feed end, i.e., the screen surface 611 slopes downwardly from the discharge end to the feed end, allowing a sufficiently long residence time of the material on the screen surface 611 to accommodate materials having an excessive moisture content, such as mud, etc.

Further, the feeding end of the screen surface 611 is further connected to a first flat plate 619, the opposite sides of the first flat plate 619 are further connected to a third side plate 614 and a fourth side plate 615, the third side plate 13 is connected to the first side plate 612, the fourth side plate 615 is connected to the second side plate 613, the first flat plate 619 is obliquely arranged, and an included angle f formed by the first flat plate 619 and a reference surface of the base 642 is 20-45 °.

In this embodiment, by providing the first plate 619 at an angle such that the first plate 619 has a steeper incline than the screening surface 611, the first plate 619 is used to feed material, which increases the rate of movement of material from the first plate 619 to the screening surface.

Further, a second plate 618 for unloading is further connected to the discharging end of the screening surface 611, the second plate 618 is obliquely arranged, a fifth side plate 616 and a sixth side plate 617 are further respectively arranged on two opposite sides of the second plate 618, the fifth side plate 616 is connected with the first side plate 612, and the sixth side plate 617 is connected with the second side plate 613.

The first side plate 612, the second side plate 613, the third side plate 614, the fourth side plate 615, the fifth side plate 616 and the sixth side plate 617 are used for preventing materials from sliding off from the side edges, and the vibrating dewatering screen has better stability.

Further, a second cross member 622 is further connected between the first side plate 612 and the second side plate 613, for enhancing stability of the screen box 610.

The second cross member 622 may have the same structure as the first cross member 621, and the second cross member 622 may be different from the first cross member 621 in structure, but the second cross member 622 should be disposed parallel to the first cross member 621, so that a stable structure is formed between the screen surface 611, the first cross member 621, and the second cross member 622 connected between the first side plate 612 and the second side plate 613 of the screen box 610, and stability of the screen box 610 is enhanced.

Further, the supporting member 640 is disposed on the base 642, and the supporting member 640 is a rubber spring.

Wherein, support 640 has the shock-absorbing function, and rubber spring's shock-absorbing effect is outstanding, and stable in structure, long service life.

7. First environmental protection bucket 302 (second environmental protection bucket 307 and third environmental protection bucket 312 can refer to)

Referring to fig. 10a, 10b and 10c, the environmental protection barrel 302 provided by the embodiment of the invention is used for separating mud from water in a mud-water mixture, wherein the mud is used for firing bricks, and the water is used for re-entering a recycling system, so that the mud-water mixture is recycled, and the environmental protection effect is achieved. In this embodiment, the environmental protection barrel 302 includes a first barrel 710, a second barrel 720 and a sleeve 730.

Specifically, the first barrel 710 includes a first peripheral wall 712 and a bottom wall 714, the first peripheral wall 712 is fixedly connected to one end of the first peripheral wall 712, and the first barrel 710 is a barrel-shaped structure with an opening at one end. In one embodiment, the first tub 710 is in the shape of a drum, in other words, the first peripheral wall 712 rotates around a center line to form a cylinder, and the bottom wall 714 is connected to one end of the cylinder to form a drum having an opening at one end. In other embodiments, the first barrel 710 may be a barrel of other shapes, such as a cuboid. In this embodiment, in order to improve the working efficiency of the environmental protection barrel 302 and improve the amount of the mud-water mixture separated simultaneously, the volume of the environmental protection barrel 302 is larger, the first barrel 710 is directly placed on the ground, and specifically, the bottom wall 714 is placed on the ground. In one embodiment, the inner wall surface and the outer wall surface of the first peripheral wall 712, and the inner wall surface and the outer wall surface of the bottom wall 714 are coated with paint, so as to prevent the corrosion of the first peripheral wall 712 and the bottom wall 714 caused by the mud-water mixture in the first barrel 710 and the external environment (such as rainwater and sunlight), and improve the service life of the first barrel 710.

In this embodiment, a second peripheral wall 722 is further disposed in the first barrel 710, one end of the second peripheral wall 722 is fixedly connected to the bottom wall 714, the second peripheral wall 722 is connected to the bottom wall 714 to form a second barrel 720, and the second barrel 720 is located in the first barrel 710. In this embodiment, it can be understood that the second peripheral wall 722 divides the internal space of the first tub 710 into two independent parts, wherein the space inside the second peripheral wall 722 and the space between the second peripheral wall 722 and the first peripheral wall 712 are separated by the second peripheral wall 722, and it can be understood that the bottom wall 714 covers one end of the second peripheral wall 722 to form the second tub 720, and the second tub 720 is located inside the first tub 710. In one embodiment, the second tub 720 is in the shape of a drum, in other words, the second peripheral wall 722 rotates around the center line to form a cylinder, and the bottom wall 714 is connected to one end of the cylinder to form a drum having an opening at one end. In other embodiments, the second barrel 720 may be a barrel of other shapes, such as a cuboid.

In this embodiment, a sleeve 730 is further disposed in the first barrel 710 and sleeved outside the second barrel 720, an accommodating space 740 is formed between the sleeve 730 and the first peripheral wall 712, and a first gap 750 is formed between the sleeve 730 and the second peripheral wall 722. In one embodiment, the sleeve 730 is a cylinder having the same shape as the first peripheral wall 712 and the second peripheral wall 722, the sleeve 730 is sleeved on the second peripheral wall 722, the sleeve 730 can be fixedly connected with the second peripheral wall 722 through a bracket, and the sleeve 730 can also be fixedly connected with the first peripheral wall 712 through a bracket. In this embodiment, a first gap 750 is formed between the sleeve 730 and the second peripheral wall 722, and when the second barrel 720 is full of the mud-water mixture, the mud-water mixture overflows from the second barrel 720, flows into the accommodating space 740 after passing through the first gap 750, and is precipitated and separated in the accommodating space 740.

The arrows shown in fig. 10b are the flow direction of the mud water mixture. The mud-water mixture conveyed into the second barrel body 720 is firstly precipitated in the second barrel body 720, the preliminary separation of mud and water is completed, the mud-water mixture overflows from the second barrel body 720 and flows into the accommodating space 740 through the first gap 750, the mud is further precipitated in the accommodating space 740 to separate from the water, the mud-water mixture enters the accommodating space 740 from the bottom close to the accommodating space 740 through the first gap 750, the separation effect of the mud and the water is further improved, the separation effect of the mud and the water is good, and the reutilization of the mud and the water is facilitated.

In this embodiment, a bevel material cannula layer 760 is disposed in the accommodating space 740, and the bevel material cannula layer 760 is used for dividing the accommodating space 740 into a clean water area 742 and a slurry area 744. In one embodiment, the chute layer 760 is disposed horizontally in the middle of the receiving space 740 to divide the receiving space 740 into a clear water area 742 and a slurry area 744, wherein the slurry area 744 is near the bottom wall 714 and the clear water area 742 is near the opening of the first barrel 710. Specifically, the bevel cannula layer 760 comprises a plurality of interconnected hollow tubes disposed obliquely to the bottom wall 714. In one embodiment, the hollow tube is at an angle of 45-60 ° to the horizontal, the slurry cannula 760 serves as a filter, water in the slurry mixture passes through the slurry cannula 760 and enters the clear water 742, and the slurry is deposited into the slurry area 744.

In the present embodiment, the bottom wall 714 is provided with a first outlet 772, and the first outlet 772 communicates with the accommodating space 740 and the outside for discharging the slurry in the slurry area 744. Specifically, the first outlet 772 is connected to an output pipe, and the slurry is pumped out of the first outlet 772 by a suction pump and sent to the next process.

In this embodiment, a first slope 782 is provided at the connection between the first peripheral wall 712 and the bottom wall 714, a second slope 784 is provided at the connection between the outer wall surface of the second peripheral wall 722 and the bottom wall 714, and the first discharge outlet 772 is located between the vertical projections of the first slope 782 and the second slope 784 on the bottom wall 714, and the first slope 782 and the second slope 784 are used for guiding the slurry in the slurry area 744 to the first discharge outlet 772. Specifically, the first slope 782 and the second slope 784 form the bottom end of the accommodating space 740 into a funnel-like shape, the first discharge opening 772 is located at the minimum opening position of the funnel, and the mud precipitated downward from the mud zone 744 is guided to the first discharge opening 772, so that the mud discharge efficiency is improved.

In this embodiment, the bottom wall 714 is further provided with a second outlet 774, and the second outlet 774 communicates with the interior of the second barrel 720 and the outside, so as to discharge the slurry in the second barrel 720. Specifically, the second discharge port 774 is connected to the output pipe, and the slurry is pumped out of the second discharge port 774 by a suction pump and sent to the next process. In this embodiment, the environmental protection tub 302 performs two separation of mud and water, wherein the mud-water mixture inside the second tub 720 is naturally precipitated, and the mud is discharged from the second discharge outlet 774. The mud-water mixture not separated in the second tub 720 is further separated in the receiving space 740.

In this embodiment, a third slope 786 is provided at the connection between the inner wall surface of the second peripheral wall 722 and the bottom wall 714, and the second discharge opening 774 is located between the vertical projections of the third slope 786 on the bottom wall 714, and the third slope 786 is used to guide the slurry in the second barrel 720 to the second discharge opening 774. Specifically, the third slope 786 forms the bottom end of the inside of the second tub 720 in a funnel-like shape, the second discharge outlet 774 is located at the minimum opening position of the funnel, and the downward sedimented slurry is guided to the second discharge outlet 774, improving the efficiency of the slurry discharge.

In this embodiment, the first peripheral wall 712 is provided with a third outlet 76, the position of the third outlet 76 corresponds to the clear water area 742, and the third outlet 76 is used for discharging water in the clear water area 742. Specifically, the third drain 76 is near the top of the first perimeter wall 712 to drain the water in the clear water zone 742.

In this embodiment, the sleeve 730 includes a first end surface 3022 facing away from the bottom wall 714, the second barrel 720 includes a second end surface 3021 facing away from the bottom wall 714, and the mud-water mixture in the second barrel 720 overflows from the opening of the second end surface 3021 and flows into the first gap 750, and the distance between the first end surface 3022 and the bottom wall 714 is not smaller than the distance between the second end surface 3021 and the bottom wall 714, so that the mud-water mixture overflowed from the opening of the second end surface 3021 flows into the first gap 750 entirely. Specifically, the horizontal position of the first end surface 3022 is higher than the horizontal position of the second end surface 3021, so that the slurry mixture is prevented from being sputtered to the accommodating space 740 from outside the first gap 750 when the slurry mixture overflows from the opening of the second end surface 3021, and thus the slurry mixture overflows from the opening of the second end surface 3021 all passes through the first gap 750 and enters the accommodating space 740 from the bottom of the accommodating space 740.

In this embodiment, the environmental protection barrel 302 further includes an input pipe 790, and the input pipe 790 is inserted into the second barrel 720. Specifically, the input pipe 790 is at least partially inserted into the second tub 720 to prevent the mud-water mixture from being sputtered due to a large flow rate when being input into the second tub 720.

The mud-water mixture conveyed into the second barrel body 720 is firstly precipitated in the second barrel body 720, the preliminary separation of mud and water is completed, the mud-water mixture overflows from the second barrel body 720 and flows into the accommodating space 740 through the first gap 750, the mud is further precipitated in the accommodating space 740 to separate from the water, the first gap 750 enables the mud-water mixture to enter the accommodating space 740 from the bottom close to the accommodating space 740, the mud is beneficial to downwards precipitation, the separation effect of the mud and the water is further improved, the separation effect of the mud and the water is good, and the reutilization of the mud and the water is beneficial.

The above disclosure is only a preferred embodiment of the present invention, and it should be understood that the scope of the invention is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures described above can be performed according to the equivalent modifications of the claims, and still fall within the scope of the present invention.

Claims

1. A water circulation system for construction waste treatment, which is characterized by comprising a first water tank, a second water tank and a sand washing machine for washing sand, a third water tank and a sixth water tank for storing slurry, a first cyclone separator for separating sand and slurry, a first environment-friendly bucket for separating slurry, a first slurry pump and a plurality of filter presses, wherein the water circulation system further comprises a clean water tank, the clean water tank is provided with pipelines respectively connected to the first water tank, the second water tank, the third water tank, the sixth water tank, the first environment-friendly bucket and a plurality of filter presses, water separated by the filter presses flows into the clean water tank through the pipelines, the clean water tank respectively supplies water to the first water tank, the second water tank, the sand washing machine, the third water tank, the sixth water tank and the first environment-friendly bucket, and slurry after the sand washing of the first water tank enters the third water tank, and the first cyclone separator separates the slurry in the third water tank into slurry entering the sixth water tank and the first environment-friendly bucket;

A first canal is connected between the third water tank and the first water tank, a first mud conveying pipe is connected between the first cyclone separator and the first environment-friendly barrel, mud separated by the first cyclone separator is conveyed to the first environment-friendly barrel for precipitation through the first mud conveying pipe, mud precipitated at the bottom of the first environment-friendly barrel is conveyed to the filter press through the first slurry pump, and the filter press extrudes the mud to obtain mud and separates out water;

The sand washing machine also comprises a fourth water tank and a fifth water tank for storing mud, a second cyclone separator, a third cyclone separator and a fourth cyclone separator for separating sand and mud, a second environment-friendly barrel, a third environment-friendly barrel, a second slurry pump and a third slurry pump for separating mud, a second water channel is further connected between the fourth water tank and the second water tank, a third water channel is further connected between the fifth water tank and the sand washing machine, the slurry separated from the fourth water tank is conveyed to the second environment-friendly barrel through a third slurry conveying pipe, the slurry separated from the fifth water tank is conveyed to the third environment-friendly barrel through a fourth slurry conveying pipe, the slurry separated from the sixth water tank is conveyed to the third environment-friendly barrel through a second slurry conveying pipe, the slurry precipitated at the bottom of the second environment-friendly barrel is conveyed to the filter press through a second slurry pump, and the slurry precipitated at the bottom of the third environment-friendly barrel is conveyed to the filter press through the third slurry pump;

The clean water tank is provided with a first waterway, a second waterway and a third waterway, and the first waterway is respectively conveyed to the first water tank, the second water tank and the sand washing machine after being led out from the clean water tank; the second waterway is respectively conveyed to the third water tank, the fourth water tank, the fifth water tank and the sixth water tank after being led out from the clean water tank; the third waterway is led out of the clean water tank and then is respectively conveyed to the first environment-friendly barrel, the second environment-friendly barrel and the third environment-friendly barrel;

The clean water tanks are arranged in a plurality, and the clean water tanks are mutually communicated.

2. The water circulation system for construction waste treatment of claim 1, wherein a portion of the aqueous slurry after sand washing in the first pond flows through the first canal into the third pond, and a portion of the aqueous sand and stone in the first pond enters the second pond; part of the water-containing cement paste after sand washing in the second water tank enters the fourth water tank through the second water channel, and part of the water-containing sand and stones in the second water tank enter the sand washing machine; and mud after sand washing in the sand washing machine enters the fifth water tank through the third water channel.

3. The water circulation system for construction waste treatment according to claim 2, further comprising a coarse sand dehydrator, wherein a part of the water-bearing sand in the sand washer enters the coarse sand dehydrator, and wherein the coarse sand dehydrator is further provided with a pipe for transporting the dehydrated water to the fifth water tank.

4. The water circulation system for construction waste treatment according to claim 1, further comprising a fine sand dehydrator and a fourth conveyor belt, wherein the hydrous sand and stone separated by the first cyclone separator, the third cyclone separator and the fourth cyclone separator is conveyed to the sixth water tank via the fourth conveyor belt, and the fine sand dehydrator is further provided with a pipe for conveying dehydrated water to the sixth water tank.

5. The water circulation system for construction waste treatment of claim 1, wherein the first environmental protection bucket comprises a first bucket body including a first peripheral wall and a bottom wall fixedly connected to one end of the first peripheral wall; one end of the second peripheral wall is fixedly connected to the bottom wall to form a second barrel body, and the second barrel body is positioned in the first barrel body; the sleeve is sleeved outside the second barrel body, an accommodating space is formed between the sleeve and the first peripheral wall, and a first gap is formed between the sleeve and the second peripheral wall; after the second barrel body is full of the mud-water mixture, the mud-water mixture overflows from the second barrel body and flows into the accommodating space after passing through the first gap.

6. The water circulation system for treating construction waste according to claim 5, wherein a chute is provided in the housing space, and the chute is used for dividing the housing space into a clean water area and a slurry area.

7. The water circulation system for construction waste treatment according to claim 6, wherein the bottom wall is provided with a first discharge port communicating the receiving space with the outside for discharging the slurry of the slurry zone.