CN113318981A - Silt particle screening mechanism based on cylinder screen - Google Patents

Abstract

The invention discloses a silt screening mechanism based on a cylindrical screen, which comprises the cylindrical screen, wherein the cylindrical screen comprises a cylinder body and a stirring core, the stirring core is arranged in the cylinder body, the stirring core and the cylinder body are coaxially arranged, the cylinder body comprises a discharge end of a feeding end machine, the side surface of the cylinder body comprises a moving section and a screen section, and the moving section and the screen section are sequentially arranged in the moving direction of silt. Through setting up the drum sieve, the drum sieve drives the silt slurry to remove to the discharge end direction when stirring the silt slurry based on pivoted stirring core, based on the sealed setting of removal section for the removal of silt slurry on the removal section can intensive mixing, avoids just getting into the dregs of drum sieve and does not pass through the mixing of water and intensive mixing, makes the screening efficiency of silt slurry higher, and the screening is more accurate. Meanwhile, by arranging the screen section, the materials which are fully stirred move forwards, and simultaneously, the coarse stones are gradually separated from the fine stones, the muddy water and the sand, so that the coarse stones are separated from other materials.

Description

Silt particle screening mechanism based on cylinder screen

Technical Field

The invention relates to the field of mud and sand screening equipment, in particular to a mud and sand screening mechanism based on a cylindrical screen.

Background

When earth works are performed in buildings, tunnels and the like, a foundation or a mountain needs to be excavated, a large amount of muck is generated during excavation, and stones, soil, sand or other impurities with different sizes are usually mixed in the muck, so that the muck needs to be screened.

In the existing silt screening equipment, silt is required to be added with water and mixed to form silt slurry, so that the silt slurry is screened for multiple times, and the silt slurry is formed in the forming process, and due to insufficient stirring, the formed silt slurry is mixed with dry silt, so that the silt cannot be screened or screening errors occur, and the screening efficiency of the silt slurry is lower.

Disclosure of Invention

The invention provides a silt screening mechanism based on a cylindrical screen, and aims to solve the problem of low screening efficiency caused by insufficient stirring of silt in the prior art.

According to the embodiment of the application, the silt screening mechanism based on the cylindrical screen comprises the cylindrical screen, wherein the cylindrical screen comprises a cylinder body and a stirring core, the stirring core is arranged in the cylinder body, and the stirring core and the cylinder body are coaxially arranged; the cylinder comprises a discharge end of a feeding end machine, the feeding end and the discharge end are respectively arranged at two ends of the cylinder, and the stirring core rotates to move the slurry from the feeding end to the discharge end; the side face of the cylinder body comprises a moving section and a screen section, the moving section and the screen section are sequentially arranged in the moving direction of the slurry, and the slurry moves on the moving section and enters the screen section for screening.

Preferably, the stirring core is a spiral stirring core, and the stirring core rotates to stir the silt slurry and drives the silt slurry to move.

Preferably, the device further comprises a first collecting tank, wherein the cylindrical screen is arranged in the first collecting tank; the first collecting tank comprises a blanking tank, a notch is formed in the position, corresponding to the feeding end, of the blanking tank, and the feeding end of the barrel is arranged in the notch.

Preferably, the blanking pool comprises a concave part, and the length of the concave part is matched with that of the screen section.

Preferably, the side surface of the concave part is of a bevel structure.

Preferably, the material conveying device further comprises a first material lifting assembly, wherein the first material lifting assembly comprises a conveying belt and a plurality of material lifting hoppers, the plurality of material lifting hoppers are sequentially arranged on the conveying belt at equal intervals, and a plurality of water leakage holes are formed in the material lifting hoppers; one end of the conveyor belt is placed in the concave part.

Preferably, the number of the conveyor belts is multiple, and the plurality of conveyor belts are respectively arranged on two sides of the cylinder body.

Preferably, the screen section is provided with a plurality of screen holes, and the aperture of each screen hole is smaller than 10 mm.

The silt screening mechanism based on the cylindrical screen has the following beneficial effects:

1. through setting up the drum sieve, the drum sieve drives the silt slurry to remove to the discharge end direction when stirring the silt slurry based on pivoted stirring core, based on the sealed setting of removal section for the removal of silt slurry on the removal section can intensive mixing, avoids just getting into the dregs of drum sieve and does not pass through the mixing of water and intensive mixing, makes the screening efficiency of silt slurry higher, and the screening is more accurate. Meanwhile, by arranging the screen section, the materials which are fully stirred move forwards, and simultaneously, the coarse stones are gradually separated from the fine stones, the muddy water and the sand, so that the coarse stones are separated from other materials.

2. Through setting up the breach for the barrel can sink in the blanking pond based on the breach, reduces the height of feed end, avoids the inconvenient problem of feeding that too high feed end brought.

3. Through setting up the length of depressed part with the length matching of screen segment for in the silt water of falling from the screen segment falls into the depressed part at first, and because silt aquatic is mixed with sand and fine stone, then sand and fine stone can directly pile up in the depressed part, the muddy water that is mixed with earth then is located sand and fine stone top because density is lower, be convenient for the user in the blanking pond cell-phone sand and fine stone.

4. The depressed part side is the inclined plane structure for the depressed part side has the guide effect, and when the sand of whereabouts and fine stone are for dropping to the depressed part in, can remove under the drive effect based on rivers in the blanking pond, when removing to the depressed part side, can drop into downwards based on the inclined plane structure, lets more sand and fine stone get into in the depressed part.

5. The quantity of conveyer belt is a plurality of, and is a plurality of the conveyer belt branch is located the both sides of barrel, and the conveyer belt is close to a terminal surface of barrel drive silt slurry moving direction for the both sides of barrel can set up more conveyer belt and transport sand and the fine stone that sinks in the depressed part.

Drawings

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

Fig. 1 is a schematic structural diagram of a silt particle screening machine according to a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a cylindrical screen in a silt screening machine according to a first embodiment of the invention.

Fig. 3 is a schematic view of a waterway system of a silt particle screening machine according to a first embodiment of the present invention.

Description of reference numerals:

100. screening the slurry by a screen;

1. a cylindrical screen mechanism;

11. a cylindrical screen; 111. a feeding end; 112. a discharge end; 113. a barrel; 1131. a moving section; 1132. a screen section; 114. a stirring core;

12. a first collection tank; 121. a blanking pool; 1211. a notch; 1212. a recessed portion; 122. a reflux pool; 123. a communication path; 124. a reflux tank; 125. a filter screen;

13. a first lifting assembly; 131. a conveyor belt; 132. a material lifting hopper; 14. a water absorbing assembly; 15. a filter press; 16. a water storage assembly; 17. a feed channel; 18. a mixing tank;

2. a horizontal vibrating screen mechanism; 21. a vibrating screen machine; 22. a second collection tank; 23. a second lifting assembly;

3. a dewatering mechanism;

4. a stone breaking mechanism; 41. a crushed stone feeding belt; 42. a stone block stacking zone.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

Referring to fig. 1, 2 and 3, a first embodiment of the present invention discloses a silt particle screening machine 100, which includes: silt screening mechanism based on cylinder sieve, silt screening mechanism based on cylinder sieve includes cylinder sieve mechanism 1 for sieve silt into silt water and stone.

The mud slurry screening machine 100 further comprises a horizontal vibrating screen mechanism 2 for screening sand and fine stones from the silt water, a dewatering mechanism 3 for transporting the sand after dewatering, and a stone breaking mechanism 4 for breaking stones and outputting stones with preset requirements. Drum sieve mechanism 1, level are shaken sieve mechanism 2 and dewatering mechanism 3 and are set gradually, rubble mechanism 4 is located the level is shaken sieve mechanism 2 side, rubble mechanism 4 with drum sieve mechanism 1 is connected, drum sieve mechanism 1 with the stone that silt screening was gone out by rubble mechanism 4 shifts out and carries out the rubble operation.

It can be understood that the silt slurry is formed by mixing engineering slag and soil with water, and contains muddy water (soil mixed in water), sand, stones and other impurities, the stones contain coarse stones and fine stones, the fine stones are primarily screened in the cylindrical screen mechanism 1, and the coarse stones need to be crushed by the stone crushing mechanism 4 to form fine stones meeting requirements.

It can be understood that engineering dregs in the mixed water and formation silt slurry gets into drum sieve mechanism 1, the preliminary screening be silt water and stone, silt aquatic contains muddy water and sand, also contains a small amount of fine stone simultaneously, and most stone is directly exported and is removed to rubble mechanism 4, and silt water continues to shake sieve mechanism 2 along moving forward to the level, and the in-process is screened into sand and fine stone, and then the fine stone is direct output, and the sand then gets into dewatering mechanism 3 and carries out output after the drying.

The silt screening machine 100 provided by the invention can screen silt gradually and output sand and fine stones meeting requirements, the cylindrical screen mechanism 1, the horizontal vibrating screen mechanism 2 and the dewatering mechanism 3 are sequentially arranged in a straight line, the structural layout is compact, the silt screening and transporting efficiency is improved, meanwhile, the gravel mechanism is arranged on the side surface of the horizontal vibrating screen mechanism 2, stones output by the cylindrical screen mechanism 1 can be directly transported to the gravel mechanism 4 to be crushed, the flow of moving and screening the silt forward is not influenced, the mechanisms are not mutually influenced, the layout is compact, the space utilization rate is improved, and particularly in a large-scale engineering silt screening environment, the sludge accumulation of the silt in the moving and screening process can be reduced.

Referring to fig. 2, the cylindrical screen mechanism 1 includes a cylindrical screen 11 and a first collecting tank 12, and the cylindrical screen 11 is disposed in the first collecting tank 12. The cylindrical screen 11 comprises a feed end 111 and a discharge end 112, and the slurry moves within the cylindrical screen 11 from the feed end 111 to the discharge end 112. The cylindrical screen mechanism 1 further comprises a first lifting assembly 13, one end of the first lifting assembly 13 is connected with the first collecting tank 12, and the other end of the first lifting assembly 13 is connected with the horizontal vibrating screen mechanism 2. The cylindrical screen 11 comprises a cylinder 113 and a stirring core 114, the stirring core 114 is arranged in the cylinder 113, the stirring core 114 and the cylinder 113 are coaxially arranged, the stirring core 114 is positioned in the cylinder 113 to rotate, and the stirring core 114 rotates to move the slurry from the feeding end 111 to the discharging end 112. The barrel 113 side includes removal section 1131 and screen cloth section 1132, removal section 1131 with screen cloth section 1132 sets gradually on the moving direction of silt particle, and silt particle is in move on the removal section 1131 and get into screen cloth section 1132 is interior to sieve.

The slurry enters the cylinder 113 from the feeding end 111, and is stirred by the rotation of the stirring core 114, so that the silt slurry starts to move from the feeding end 111 to the discharging end 112 while being stirred, sequentially passes through the moving section 1131 and the screen section 1132 in the moving process, the moving section 1131 is a sealing plate structure, the screen section 1132 is provided with screen holes, after the slurry moves along the length of the moving section 1131, the slurry is sufficiently agitated and enters the screen section 1132, and when passing through the screen section 1132, the larger coarse stones in the stone continue to move under the drive of the agitating core 114, while sand and muddy water and some fine stones fall through the screen section 1132 into the first collection tank 12, after passing through the screen segment 1132, the silt slurry is separated into silt water and large-sized stones (coarse stones), the silt water falls into the first collecting tank 12, and the coarse stones are output from the discharge segment 112 and sent to the stone breaking mechanism 4.

It can be understood that by arranging the cylindrical screen 11, the cylindrical screen 11 drives the sediment slurry to move towards the discharge end 112 based on the rotating stirring core 114 while stirring the sediment slurry, and based on the sealing arrangement of the moving section 1131, the sediment slurry is sufficiently stirred in the moving section 1131, so that the residue soil which just enters the cylindrical screen 11 is prevented from being mixed and sufficiently stirred without water, the screening efficiency of the sediment slurry is higher, and the screening is more accurate.

It is understood that the stirring core 114 is a spiral stirring core, and the stirring core 114 rotates to stir the slurry and drive the slurry to move, i.e. the stirring and driving effect is simultaneously achieved by the rotation of the spiral structure.

Referring to fig. 2 and fig. 3, the first collecting tank 12 includes a blanking tank 121, a notch 1211 is disposed in a position of the blanking tank 121 corresponding to the feeding end 111, the feeding end 111 of the barrel 113 is disposed in the notch 1211, the notch 1211 is formed by a concave structure at an edge of the blanking tank 121, and the feeding end 111 of the barrel 113 is disposed in the notch 1211.

It can be understood that, by providing the notch 1211, the barrel 113 can sink into the blanking tank 121 based on the notch 1211, so as to reduce the height of the feeding end 111, and avoid the problem of inconvenient feeding caused by an excessively high feeding end 111.

Optionally, as an embodiment, the height of the notch 1211 is half of the height of the feeding end 111, so that the cylinder 113 is partially sunk in the blanking tank 121 and is partially higher than the blanking tank 121, which further facilitates a user to push the slurry into the cylinder 113.

With continuing reference to fig. 2 and 3, the settling pond 121 includes a recess 1212, the length of the recess 1212 is matched with the length of the screen segment 1132, and the silt screened by the screen segment 1132 falls behind into the recess 1212.

It can be understood that by setting up the length of recess 1212 and the length matching of screen segment 1132 for the silt water that falls from screen segment 1132 falls into recess 1212 at first, and because silt water is mixed with sand and fine stone, then sand and fine stone can directly pile up in recess 1212, and the muddy water that is mixed with earth then is located sand and fine stone top because density is lower, is convenient for the user in blanking pond 121 cell-phone sand and fine stone.

It can be understood that, in this embodiment, a plurality of sieve holes (not shown) are opened on the sieve section 1132, and the diameter of each sieve hole is smaller than 10mm, so that the sieve section 1132 separates the stone block into coarse stones and fine stones according to the standard of 10mm, where the coarse stones larger than 10mm are retained in the sieve section 1132 to move continuously, and the fine stones smaller than 10mm fall into the blanking pool 121.

Optionally, as an embodiment, the side surface of the recess 1212 is of an inclined plane structure, so that the side surface of the recess 1212 has a guiding function, when the falling sand and fine stone fall into the recess 1212, the falling sand and fine stone may move under the driving action of the water flow in the blanking pool 121, and when the falling sand and fine stone move to the side surface of the recess 1212, the falling sand and fine stone may fall downwards based on the inclined plane structure, so that more sand and fine stone enter the recess 1212.

With reference to fig. 1 and fig. 2, the first material lifting assembly 13 includes a conveyor belt 131 and a plurality of material lifting hoppers 132, the plurality of material lifting hoppers 132 are sequentially disposed on the conveyor belt 131 at equal intervals, a plurality of water leakage holes (not shown) are disposed on the material lifting hoppers 132, and one end of the conveyor belt 131 is disposed in the recess 1212.

During the use, the lifting hopper 132 enters the concave part 1212 under the drive of the conveyor belt 131, and under the effect of the end part of the conveyor belt 131, the plurality of lifting hoppers 132 are transferred to the other side from one side of the conveyor belt 131, the sand and the fine stones in the concave part 1212 are shoveled by the lifting hoppers 132 in the transfer process, when the lifting hoppers 132 move to the other end (top end) of the conveyor belt 131, the sand and the fine stones are transferred to the opposite side at the top end position again, and when the lifting hoppers 132 turn downwards, the mixture of the sand and the fine stones is poured downwards and then output to the horizontal vibrating screen mechanism 2 to enter the next process equipment.

Optionally, as an embodiment, the number of the conveyor belts 131 is multiple, the plurality of conveyor belts 131 are respectively disposed on two sides of the cylinder 113, specifically, the number of the conveyor belts 131 is four, and the conveyor belts 131 are symmetrically disposed on two side surfaces of the cylinder 113 in the moving direction of the mud slurry, and the conveyor belts 131 are close to one end surface of the cylinder in the moving direction of the mud slurry, so that more conveyor belts 131 can be disposed on two sides of the cylinder 113 to convey sand and fine stones sinking into the recess 1212.

With reference to fig. 1, the horizontal vibrating and screening mechanism 2 includes a vibrating and screening machine 21 and a second collecting tank 22, and the vibrating and screening machine 21 is disposed above the second collecting tank 22. The horizontal vibrating screen mechanism 2 comprises a second material lifting assembly 23, one end of the second material lifting assembly 23 is connected with the second collecting tank 22, and the other end of the second material lifting assembly 23 is connected with the dewatering mechanism 3. The sieving machine 21 is arranged through multi-layer sieving, the mixed materials of the sand and the fine stones moved by the first material lifting component 13 are sequentially sieved, the sand and the fine stones are separated, and the sand falls into the second collecting tank 22 again under the vibration moving action of the sieving machine 21.

It can be understood that the vibrating sieving machine 21 moves the separated sand and fine stones forward at two different positions by a vibration mode, the sand moves and falls into the second collecting tank 22 for secondary sand washing, the sand in the second collecting tank 22 is moved to the dewatering mechanism 3 by the second material lifting assembly 23, and the fine stones are output by a designated conveying mechanism.

It can be understood that the output fine stones can be directly output without entering the stone breaking mechanism 4 for breaking treatment due to the small volume.

It will be appreciated that the second lifting assembly 23 is identical in construction to the first lifting assembly 13 in that a conveyor 131 and a lifting hopper 132 are provided to move sand in the water through the lifting hopper 132 to the next process.

Referring to fig. 3, a backflow groove 124 is disposed outside the blanking pool 121, one end of the backflow groove 124 is communicated with the blanking pool 121, and the other end of the backflow groove 124 is connected to the second collection pool 22, so that the water stored in the second collection pool 22 can flow back into the blanking pool 121 again based on the backflow groove 124, and further recycling of the water is achieved, and energy is saved.

It can be understood that the second collecting tank 22 is used for washing sand, and based on the transportation of the first lifting assembly 13, a part of muddy water or clean water which has not run dry enters the second collecting tank 22, so that the water level in the second collecting tank 22 is increased continuously, and the backflow groove 124 is added, so that more water than a preset volume can flow back to the blanking tank 121 (as shown by the flow direction formed by the arrow b in fig. 3), and be further recycled as water resource.

Referring to fig. 1, after receiving the sand from the material lifting hopper 132, the dewatering mechanism 3 dewaters the sand by vibration, and the sand is discharged after being dewatered and dried by the dewatering mechanism 3.

With continued reference to fig. 1, the rock breaking mechanism 4 includes a rock feeding belt 41, one end of the rock feeding belt 41 is connected to the discharge end 112, and the other end is connected to the rock piling zone 42. The conveying direction of the gravel feeding belt 41 is perpendicular to the direction of the movement of the silt slurry of the cylindrical screen 11, and the gravel feeding belt 41 transfers coarse stones (stones larger than 10 mm) output by screening in the cylindrical screen 11 to the stone piling zone 42.

It can be understood that the rubble mechanism 4 moves the coarse stones output by screening out from the vertical direction, that is, the mud slurry forms a linear screening route based on the linear arrangement of the cylindrical screen mechanism 1, the horizontal vibrating screen mechanism 2 and the dewatering mechanism 3, the rubble mechanism 4 is arranged on the side surface of the horizontal vibrating screen mechanism 2, the coarse stones output by screening are taken out from the linear screening route based on the rubble feeding belt 41, the occupied space of the equipment is further reduced, and the space utilization rate is improved.

It can be understood that a gravel room is provided at one side of the stone block stacking area 42, and the user can output stones meeting the requirements by throwing the stacked coarse stones into the gravel room for crushing treatment.

Referring to fig. 2 and fig. 3, the first collecting tank 12 further includes a backflow tank 122, the blanking tank 121 and the backflow tank 122 are disposed adjacent to each other, a communication path 123 is disposed between the blanking tank 121 and the backflow tank 122, and a "U" shaped path (as shown by the flow direction formed by the arrow a in fig. 3) is formed among the blanking tank 121, the communication path 123 and the backflow tank 122.

It can be understood that the external clean water flows into the feeding end 111 of the cylindrical screen 11 from the gap 1211, the clean water is mixed with the dregs to form a slurry through the stirring of the stirring core 114, the slurry falls into the blanking pool 121 through the screen segment 1132, a part of the slurry in the blanking pool 121 flows back to the return pool 122 through the communication channel 123, the return pool 122 sinks the slurry into the bottom of the return pool 122 through sedimentation, and the clean water continues to flow.

It can be understood that the arrangement of the backflow pool 122 can avoid the problem that the muddy water in the blanking pool 121 is excessively accumulated and overflows the cylindrical screen 11, increase the filtering bearing capacity of the cylindrical screen mechanism 1, and meanwhile, the muddy water in the blanking pool 121 flows into the backflow pool 122, so that the user can conveniently treat the muddy water in the backflow pool 122.

With continuing to refer to fig. 1 and fig. 3, the cylindrical screen 11 is disposed in the blanking tank 121, the backflow tank 122 is disposed on the same side as the rock breaking mechanism 4, and the backflow tank 122 is disposed between the blanking tank 121 and the rock breaking mechanism 4, so that the screening device has a smaller floor area and improves the space utilization rate.

Optionally, as an embodiment, one end of the return pool 122, which is away from the communication path 123, is communicated with the notch 1211, so that the muddy water flows into the return pool 121 again through the notch 1211 after flowing from the blanking pool 121 to the return pool 122, thereby forming a return effect, and meanwhile, the muddy water can also be used as a driving force for pushing the muck into the cylindrical screen 11 based on the flowing water impact force of the return pool 122, so as to improve the muck pushing efficiency and save energy.

Optionally, as another embodiment, a filter screen 125 is disposed at one end of the backflow tank 122 close to the communication path 123, and the filter screen 125 is erected at an inlet of the backflow tank 122, so that the muddy water drifting from the blanking tank 121 is filtered by the filter screen 125 before entering the backflow tank 122, and part of stones and floating impurities are blocked by the filter screen 125, so that the muddy water flowing into the backflow tank 122 has lower impurities, and the filtering efficiency is improved.

It can be understood that in the engineering dregs that the earthwork operation produced, except having engineering reuse's sand, stone, mud and water, still can have domestic industry rubbish such as plastics, foam, industrial rubbish when falling into blanking pond 121, can float in the surface of water, get into backward flow pond 122 based on the rivers flow direction, then can shelter from and pile up on filter screen 125 by filter screen 125 this moment, improved the filtration efficiency of muddy water, the user of also being convenient for simultaneously collects and clears up rubbish impurity in filter screen 125 position. Further, the filter screen 125 is disposed in the water flow direction, and the driving effect of the water flow is utilized to filter the garbage impurities, so that the energy is further saved.

Optionally, as another embodiment, the depth of the backflow pool 122 is smaller than the depth of the blanking pool 121, so that the depth of the backflow pool 122 is higher than the depth of the blanking pool 121.

Referring to fig. 3, a water absorbing assembly 14 is disposed at an end of the blanking pool 121 away from the notch 1211, one end of the water absorbing assembly 14 is connected to the blanking pool 121, the other end is connected to a mixing pool 18, and the mixing pool 18 is used for settling clean water and mud.

The top of the mixing tank 18 is connected with a water storage assembly 16, the bottom of the mixing tank is connected with a filter press 15, the filter press 15 is connected with the water storage assembly 16, and the water absorption assembly 14 absorbs the muddy water in the blanking tank 121 into the mixing tank 18.

It is understood that the water absorption assembly 14 includes a centrifugal pump, which is a pump for conveying liquid by the centrifugal force generated when the impeller rotates, so as to pump out the mud water in the blanking tank 121 and convey the mud water into the filter press 15, the filter press 15 pressurizes the mud water, so that the mud and the water are separated, and dry mud and clean water are obtained, and the obtained clean water is output to the water storage assembly 16 for storage (as shown in the flow direction f in fig. 3) so as to recycle the water energy.

It will be appreciated that the centrifugal pump is mixed with sand when pumping out the slurry, and the slurry mixed with sand is first fed into a cyclone (not shown) by the centrifugal pump, and then the sand with higher gravity falls back into the blanking pool 121 by the characteristics of the cyclone, and the slurry is pumped out by the centrifugal pump.

It will be appreciated that the water intake assembly 14 pumps the muddy water into the mixing tank 18, the muddy water is first added with the flocculant before entering the mixing tank 18, the flocculant can settle the mud mixed in the muddy water at the bottom of the clear water, after the flocculant is mixed, the muddy water enters the mixing tank 18 to settle, the mud settles at the bottom of the mixing tank 18, the clear water is located at the upper part of the mixing tank 18, the mixing tank 18 can move the clear water into the water storage assembly 16 (e and f directions in fig. 3), and the mud at the bottom is moved into the filter press 15 (d direction in fig. 3).

The filter press 15 and the water storage assembly 16 are disposed on a side of the blanking pool 121 away from the horizontal vibrating screen mechanism 2, and the water storage assembly 16 is communicated with the notch of the blanking pool 121, so that the recovered clean water can flow in the notch 1211 again to form a recovery-output backflow of the clean water (such as a flow direction formed by an arrow c in fig. 3), so that the recovered clean water is output and used as one of power sources for pushing the muck to enter the cylindrical screen 11, and energy is further saved.

Optionally, as an embodiment, a feeding channel 17 is disposed between the water storage assembly 16 and the blanking tank 121, and the filter press 15, the water storage assembly 16, the feeding channel 17, and the blanking tank 121 are sequentially disposed, and the heights of the filter press, the water storage assembly 16, the feeding channel 17, and the blanking tank 121 are gradually reduced.

It can be understood that the feeding channel 17 is a space for placing engineering muck and is connected with the feeding end 111 of the blanking pool 121, the water storage assembly 16 outputs recycled clean water and then enters the feeding channel 17 to serve as one of power sources for pushing muck, meanwhile, the clean water can be mixed when the muck is washed, and part of muck is mixed to form silt, so that the stirring efficiency is improved.

It can be understood that the filter press 15, the water storage assembly 16, the feeding channel 17 and the blanking tank 121 are sequentially arranged, a straight line formed by connecting lines of the filter press 15, the water storage assembly 16, the feeding channel 17 and the blanking tank 121 is parallel to a straight line formed by a filtering process of silt slurry, and the heights of the filter press 15, the water storage assembly 16, the feeding channel 17 and the blanking tank 121 are sequentially and gradually reduced, so that after the filter press 15 separates and recovers clean water, the clean water can be discharged into the water storage assembly 16 by means of gravity, and meanwhile, after the water storage assembly 16 outputs the clean water based on the operation of a user, the feeding channel 17 can be flushed by means of the formed height difference under the action of gravity, so that a driving force is formed for the muck to enter the cylindrical sieve 11, and energy is saved.

Optionally, as an embodiment, the backflow tank 122 is communicated with the feeding channel 17, so that the muddy water in the backflow tank 122 enters the feeding channel 17 to form a flowing water loop (as shown in a direction in fig. 3).

The backflow groove 124 is formed in one side, away from the backflow pool 122, of the blanking pool 121, so that a surrounding waterway system is formed by taking the blanking pool 121 as a center, and the utilization rate of a space is improved.

Optionally, as another embodiment, the backflow tank 124 is communicated with the notch 1211 of the blanking tank 121, and the sludge entering from the notch 1211 can be mixed with the dregs to form the silt slurry, so as to improve the efficiency of forming the silt slurry, and the silt slurry flows back again to be mixed with the silt slurry.

The silt screening mechanism based on the cylindrical screen has the following beneficial effects:

1. through setting up the drum sieve, the drum sieve drives the silt slurry to remove to the discharge end direction when stirring the silt slurry based on pivoted stirring core, based on the sealed setting of removal section for the removal of silt slurry on the removal section can intensive mixing, avoids just getting into the dregs of drum sieve and does not pass through the mixing of water and intensive mixing, makes the screening efficiency of silt slurry higher, and the screening is more accurate. Meanwhile, by arranging the screen section, the materials which are fully stirred move forwards, and simultaneously, the coarse stones are gradually separated from the fine stones, the muddy water and the sand, so that the coarse stones are separated from other materials.

2. Through setting up the breach for the barrel can sink in the blanking pond based on the breach, reduces the height of feed end, avoids the inconvenient problem of feeding that too high feed end brought.

3. Through setting up the length of depressed part with the length matching of screen segment for in the silt water of falling from the screen segment falls into the depressed part at first, and because silt aquatic is mixed with sand and fine stone, then sand and fine stone can directly pile up in the depressed part, the muddy water that is mixed with earth then is located sand and fine stone top because density is lower, be convenient for the user in the blanking pond cell-phone sand and fine stone.

4. The depressed part side is the inclined plane structure for the depressed part side has the guide effect, and when the sand of whereabouts and fine stone are for dropping to the depressed part in, can remove under the drive effect based on rivers in the blanking pond, when removing to the depressed part side, can drop into downwards based on the inclined plane structure, lets more sand and fine stone get into in the depressed part.

5. The quantity of conveyer belt is a plurality of, and is a plurality of the conveyer belt branch is located the both sides of barrel, and the conveyer belt is close to a terminal surface of barrel drive silt slurry moving direction for the both sides of barrel can set up more conveyer belt and transport sand and the fine stone that sinks in the depressed part.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (8)

1. The mud and sand screening mechanism based on the cylindrical screen is characterized by comprising the cylindrical screen, wherein the cylindrical screen comprises a cylinder body and a stirring core, the stirring core is arranged in the cylinder body, and the stirring core and the cylinder body are coaxially arranged;

the cylinder comprises a discharge end of a feeding end machine, the feeding end and the discharge end are respectively arranged at two ends of the cylinder, and the stirring core rotates to move the slurry from the feeding end to the discharge end;

the side face of the cylinder body comprises a moving section and a screen section, the moving section and the screen section are sequentially arranged in the moving direction of the slurry, and the slurry moves on the moving section and enters the screen section for screening.

2. The silt screening mechanism based on a cylindrical screen according to claim 1, characterized in that: the stirring core is a spiral stirring core, and the stirring core rotates to stir the sediment slurry and drives the sediment slurry to move.

3. The cylindrical screen based mud screening mechanism of claim 1, wherein: the cylinder screen is arranged in the first collecting tank;

the first collecting tank comprises a blanking tank, a notch is formed in the position, corresponding to the feeding end, of the blanking tank, and the feeding end of the barrel is arranged in the notch.

4. The cylindrical screen based mud screening mechanism of claim 3, wherein: the blanking pool comprises a concave part, and the length of the concave part is matched with that of the screen section.

5. The cylindrical screen based mud screening mechanism of claim 4, wherein: the side surface of the depressed part is of an inclined plane structure.

6. The cylindrical screen based mud screening mechanism of claim 4, wherein: the material conveying device comprises a conveying belt, a plurality of material lifting hoppers and a plurality of water leakage holes, wherein the conveying belt is arranged on the conveying belt;

one end of the conveyor belt is placed in the concave part.

7. The cylindrical screen based mud and sand screening mechanism of claim 6, wherein: the quantity of conveyer belt is a plurality of, and is a plurality of the conveyer belt is located respectively the both sides of barrel.

8. The cylindrical screen based mud screening mechanism of claim 3, wherein: the screen mesh section is provided with a plurality of screen meshes, and the calibers of the screen meshes are smaller than 10 mm.

Images