CN111589686A - Sand and stone separator - Google Patents
Sand and stone separator Download PDFInfo
- Publication number
- CN111589686A CN111589686A CN202010347623.1A CN202010347623A CN111589686A CN 111589686 A CN111589686 A CN 111589686A CN 202010347623 A CN202010347623 A CN 202010347623A CN 111589686 A CN111589686 A CN 111589686A
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- Prior art keywords
- cylinder
- sand
- sieve
- outlet pipe
- slider
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
- B07B1/24—Revolving drums with fixed or moving interior agitators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/11—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for outward flow filtration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/68—Retarding cake deposition on the filter during the filtration period, e.g. using stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
- B07B1/55—Cleaning with fluid jets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2230/00—Specific aspects relating to the whole B07B subclass
- B07B2230/01—Wet separation
Abstract
The invention relates to a sand-stone separator, which comprises a shell, a roller, a first driving component and a sealing plate, wherein the roller is rotationally connected to the shell, one end of the roller is provided with an opening, the first driving component drives the roller to rotate, the sealing plate is fixedly connected to the shell and rotationally connected to one end, provided with an opening, of the roller, the sealing plate is provided with a feed hopper and a stone discharge hopper positioned below the feed hopper, the side wall of the roller is provided with a first sieve hole only for sand to pass through, the inner side wall of the roller is provided with a spiral pushing blade, the sand dewatering mechanism that is located the below of guiding gutter and the thick liquid that is located sand dewatering mechanism below receive the silo, sand dewatering mechanism is including being located the support frame that the silo both sides were received to the thick liquid respectively, slide along the horizontal direction and connect in the slider of support frame, install in the sieve silo of slider and drive slider and make the second drive assembly of reciprocating motion, the second sieve mesh that only supplies the muddy water to pass through is seted up to the sieve silo. The invention has the effect of improving the separation rate of sand, stone and cement slurry water.
Description
Technical Field
The invention relates to the technical field of concrete processing, in particular to a sand-stone separator.
Background
The commercial concrete mixing plant inevitably produces a large amount of waste water in the cleaning process of the commercial concrete transport vehicle, and the waste water not only contains conventional building materials such as sand stone, cement and the like, but also contains various types of concrete additives. If the waste water is directly discharged, not only the resource waste of building materials is caused, but also the serious pollution to the natural environment is caused. At present, most of concrete mixing plant cleaning wastewater adopts a multi-stage slag separation and natural precipitation method to carry out solid-liquid separation, so that not only is the treatment efficiency low, but also the precipitated wastewater cannot be recycled due to higher content of suspended matters.
In recent years, a combination of a sand-stone separator, a filter press and a clear water collecting pool is introduced into a commercial concrete mixing station, when a commercial concrete transport vehicle reaches the position of the sand-stone separator, water is automatically supplied to the commercial concrete transport vehicle, the commercial concrete transport vehicle can rotate forwards first to enable clear water to clean the interior of the commercial concrete transport vehicle, the commercial concrete transport vehicle rotates for a certain time and then rotates backwards to discharge sand-stone slurry water in the commercial concrete transport vehicle, the sand-stone slurry water can enter a guide chute of the sand-stone separator and then enter a separating mechanism of the sand-stone separator to be separated, stones and gravels can be respectively discharged from different outlets of the sand-stone separator, the slurry water is conveyed into the filter press to be further subjected to solid-liquid separation, and the separated clear water can be conveyed into the clear water collecting pool.
At present, a Chinese patent with an authorization publication number of CN 203816765U discloses a concrete sand-stone separator, which comprises an upper cover body, a lower box body, a slurry overflow port, a stone outlet and a sand outlet, and is characterized by also comprising a driving device, a roller separator, a diversion trench, a transmission device and a water pipe; the drum separator includes a drum; the drum is provided with sieve pores with the same aperture; the diversion trench is connected with the roller feed inlet; the transmission device comprises a blade shaft, a plurality of spiral pushing blades which are integrally conical are arranged on the blade shaft, and the spiral pushing blades are in a pushing mode; the driving device comprises a driving motor and a speed reducer, wherein the driving motor is connected with one end of the blade shaft through the speed reducer, and the other end of the blade shaft is rotatably connected with the roller separator; the water pipe is a high-pressure water pipe; the high-pressure water pipe passes through the interior of the roller separator.
The above prior art solutions have the following drawbacks: this prior art is through adopting grit screening and sand dehydration integral type design, and grit and thick liquid directly get into the cylinder in, because thick liquid viscosity is big, lead to sand, stone, grout water separation thoroughly inadequately, the separation rate is lower.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a sand-stone separator which has the advantage of improving the separation rate of sand, stone and cement slurry water.
The above object of the present invention is achieved by the following technical solutions:
content of the master right: a sand-stone separator comprises a shell, a roller which is rotationally connected with the shell around the axis of the shell and one end of which is arranged in an opening, a first driving component which drives the roller to rotate, a sealing plate which is fixedly connected with the shell and rotationally connected with the roller and one end of which is arranged in an opening, the sealing plate is provided with a feed hopper and a stone discharge hopper which is arranged below the feed hopper, the side wall of the roller is provided with a first sieve mesh which only allows sand to pass through, the inner side wall of the roller is provided with a spiral pushing blade, the shell is provided with a diversion trench which is arranged below the roller, a sand dewatering mechanism which is arranged below the diversion trench and a slurry receiving trench which is arranged below the sand dewatering mechanism, the sand dewatering mechanism comprises support frames which are respectively arranged at two sides of the slurry receiving trench, a sliding part which is connected with the support frames along the horizontal direction, and the bottom wall of the screening trough is provided with a second screen hole for allowing only muddy water to pass through.
By adopting the technical scheme, in the process of separating the sand, stone, muddy water in the commercial concrete transport vehicle is poured into the roller through the feed hopper; the first driving component drives the roller to rotate forward, the spiral pushing blade in the roller stirs and separates gravel slurry water, sand and cement slurry water fall into the diversion trench through the first sieve hole and then fall onto the sieve trench, gravel separation is realized, and the roller is driven to rotate reversely to discharge stones in the roller through the stone discharge hopper; part of the muddy water that falls into on the screen trough falls into to muddy water receiving groove through the second sieve mesh on the screen trough, thereby second drive assembly drive slider makes round trip periodic motion to realize that the screen trough makes round trip periodic motion, lie in the screen trough interior grit because the effect of inertia and vibration takes place to remove down, improve the porosity between the grit, provide certain hydrophobic space, thereby improve the water permeability between the grit, thereby effectively improve separation effect and grit-water separation efficiency.
The present invention in a preferred example may be further configured to: the second driving assembly comprises a second driving motor fixedly connected to the support frame, a driving plate, a connecting rod and a connecting rod, the lower end of the second driving assembly is hinged to the driving plate of the support frame, the second driving motor drives the second driving assembly to drive the second driving assembly, the second driving assembly rotates around the axis of the second driving assembly and is connected to a rotary table of the support frame, the sliding block is eccentrically hinged to the rotary table and slides along the length direction of the driving plate, the connecting rod is fixed to the sliding block, an output shaft of the driving motor penetrates through the support frame and is coaxially and fixedly inserted into the rotary table, the axis of a hinge point of the driving plate, the axis of a hinge point of the sliding block and the axis of the rotary table are parallel, the driving plate is provided with a clamping groove located at.
Through adopting above-mentioned technical scheme, second driving motor drives the carousel and carries out circular motion, and the slider on the carousel drives the drive plate and makes a round trip to swing, and the drive plate drives the slider and carries out reciprocal linear motion to realize that the reciprocating motion of branch material frame realizes dividing the material, when the carousel rotated first semi-circle, the slip velocity of sliding block was less than the slip velocity of carousel when lower semi-circle week rotates, thereby realized that the drive plate has acceleration effect at the swing in-process, thereby improve the dispersion effect of grit, provide hydrophobic space.
The present invention in a preferred example may be further configured to: be equipped with coupling assembling between sieve silo and the slider, coupling assembling include fixed connection in first cylinder, the protrusion that the slider is close to the side of sieve silo is fixed in sieve silo is close to the side of slider prolong the arm and be fixed in the dead lever of slider, the piston rod of first cylinder with prolong the arm along the axis direction of prolonging the arm mobile the inserting establish be connected, the piston rod of first cylinder break away from under the state of shrink in prolong the arm, the dead lever with prolong the arm edge prolong the arm axis direction and insert and establish the connection, the thick liquid is received the silo and is provided with the driving piece that drives the one end that the sieve silo is close to first cylinder and goes up and down, and the lateral wall that the casing is close to the dead lever is provided with sand discharge hopper.
Through adopting above-mentioned technical scheme, the slider rotates with the one end of sieve silo to be connected, the piston rod of first cylinder stretches out and draws back in the arm that prolongs of the other end of sieve silo, piston rod shrink when first cylinder breaks away from in prolonging the arm, thereby the driving piece drives the one end lift realization that the sieve silo is close to first cylinder and rotates along the dead lever axis, be convenient for discharge the sand discharge hopper with the completion dehydration's of sieve silo in discharge sand, when the piston rod of first cylinder once more with prolong the arm when the butt joint, play the effect of fixed stay sieve silo.
The present invention in a preferred example may be further configured to: two fixedly connected with mount between the support frame, the driving piece is the second cylinder, the vertical setting of axis and the activity butt of the piston rod of second cylinder in the lower terminal surface of sieve silo, the cylinder body fixed connection of second cylinder in mount.
Through adopting above-mentioned technical scheme, the piston rod extension of second cylinder and butt in the lower terminal surface of screening trough to the free end that drives the screening trough upwards rotates towards being close to sand play hopper direction, makes it be the tilt state, thereby discharges the sand after will dehydrating.
The present invention in a preferred example may be further configured to: the end face of the sieving trough close to the fixed rod is provided with a discharge port, and a third cylinder, the upper end of the third cylinder is hinged to a baffle plate of the sieving trough side wall and is arranged in the sieving trough to adjust the baffle plate to open and close the discharge port, and the cylinder body of the third cylinder is hinged to the inner wall of the bottom of the sieving trough and the end part of a piston rod of the third cylinder is hinged to the inner wall of the baffle plate.
Through adopting above-mentioned technical scheme, the extension of the piston rod of third cylinder drives the free end of baffle upwards to keep away from the rotation of sieve silo direction to realize opening of discharge gate.
The present invention in a preferred example may be further configured to: the casing is provided with the elevating platform that is located thick liquid receiving groove both sides respectively, support frame fixed connection is in the up end of elevating platform.
By adopting the technical scheme, the lifting platform is arranged, on one hand, the lifting platform is lifted, so that the height difference between the screening trough and the diversion trench is reduced, and the separation effect is effectively prevented from being influenced by splashing when sand and cement slurry water falls into the screening trough; on the other hand, the elevating platform descends, and increase screen pot and guiding gutter difference in height provides sufficient space for the ejection of compact of grit, prevents effectively that screen pot from rotating the in-process and taking place to interfere with the guiding gutter.
The present invention in a preferred example may be further configured to: the casing is provided with the coaxial shrouding of wearing to locate of one end and the other end of rotating along the axial of cylinder and places the spray pipe of steam pipe in the steam pipe of cylinder terminal surface inner wall and coaxial in, and the steam pipe is equipped with the outlet duct that the axis direction is vertical setting and feeds through perisporium on the steam pipe, and the outlet duct is provided with a plurality ofly and distributes along the axis direction of steam pipe, and the spray pipe is equipped with the outlet pipe that the axis direction is vertical setting and feeds through perisporium under the spray pipe, the outlet pipe is provided with a plurality ofly and distributes along the axis direction of outlet pipe, and the outlet pipe.
By adopting the technical scheme, the water spray pipe is arranged, so that on one hand, sand in the roller is washed, the separation of the sand is convenient, and the separated sand and stone are cleaner; on the other hand, in the rotation process of the roller, the water spraying pipe washes the first sieve holes on the side wall of the roller, so that the sieve holes are kept clean and free from blockage; the hot air pipe is arranged, on one hand, hot air is introduced into the roller through the hot air pipe, and the separated sand and stone are dried, so that the separated sand and stone are effectively prevented from being adhered with dirt again in the discharging process; on the other hand, hot air enters the outside of the drum through the first sieve holes to dry the sand in the sieve trough, so that the separation effect of the sand is further improved; and the spray pipe is arranged in the hot air pipe, and the hot air heats the water of the spray pipe, so that the cleaning effect is further improved.
The present invention in a preferred example may be further configured to: the air outlet pipe and the water outlet pipe are respectively provided with a first opening and closing assembly and a second opening and closing assembly which are used for controlling the opening of the air outlet pipe to be closed and communicated and controlling the opening of the water outlet pipe to be closed and communicated.
Through adopting above-mentioned technical scheme, be provided with first subassembly and the second of opening and close and open the subassembly, can open and close control to outlet duct and outlet pipe, when the grit in the cylinder is washd and is dried to needs, open and close the mouth of pipe intercommunication that the subassembly controlled the outlet duct respectively and the mouth of pipe of outlet pipe seals the intercommunication through first subassembly and the second of opening and close, when the cylinder is carrying out the separation operation, the mouth of pipe of control outlet duct seals and the mouth of pipe of outlet pipe seals to effectively reduce partial rubble and get into hot-blast pipe and spray pipe and lead to its possibility of taking place to block up.
The present invention in a preferred example may be further configured to: the first opening and closing assembly and the second opening and closing assembly respectively comprise a connecting disc which is horizontally arranged and fixedly connected in the air outlet pipe or the water outlet pipe, a connecting cylinder which is vertically arranged and fixedly connected to one side of the connecting disc far away from the air outlet pipe or the water outlet pipe, a lifting plate which is connected between two adjacent air outlet pipes or the water outlet pipes and slides along the vertical direction, an end head which is fixedly connected to the lifting plate, a flexible hose which is arranged between the water outlet pipes and the end head or between the air outlet pipes and the end head in a sealing manner, and a fourth air cylinder which drives the lifting plate to slide, wherein a first through hole is formed in the connecting disc, the connecting cylinder is composed of a first connecting column and a second connecting column which are distributed from bottom to top, the diameter of the first connecting column is larger than that of the second connecting column and smaller than the inner diameter of the flexible hose, the lateral wall of first connecting column and the laminating of the second through-hole inner wall of end, the equal fixed connection in lifter plate of piston rod tip of fourth cylinder and its cylinder body fixed connection in the outer wall of steam pipe.
Through adopting above-mentioned technical scheme, when the piston rod of fourth cylinder contracts, the inner wall laminating of first spliced pole and end second through-hole, thereby seal the end, thereby reduce partial rubble and get into hot-blast pipe and spray pipe and lead to its possibility of taking place to block up, the piston rod extension of fourth cylinder, drive the lifter plate towards keeping away from outlet pipe or outlet duct direction respectively and sliding, thereby drive the extension of flexible hose, first spliced pole breaks away from with the suction head through-hole, realize the intercommunication at end, thereby wash the grit respectively and dry.
In summary, the invention includes at least one of the following beneficial technical effects:
in the process of separating the sand, firstly, pouring sand, stone, muddy water in the commercial concrete transport vehicle into the roller through the feed hopper; the first driving component drives the roller to rotate forward, the spiral pushing blade in the roller stirs and separates gravel slurry water, sand and cement slurry water fall into the diversion trench through the first sieve hole and then fall onto the sieve trench, gravel separation is realized, and the roller is driven to rotate reversely to discharge stones in the roller through the stone discharge hopper; part of the muddy water falling onto the screening trough falls into the muddy water receiving trough through a second sieve hole on the screening trough, the second driving assembly drives the sliding piece to do reciprocating periodic motion so as to realize that the screening trough does reciprocating periodic motion, and the gravels in the screening trough move under the action of inertia and vibration, so that the looseness among the gravels is improved, a certain hydrophobic space is provided, the water permeability among the gravels is improved, and the separation effect and the sandy water separation efficiency are effectively improved;
the sliding part is rotatably connected with one end of the screening trough, a piston rod of the first air cylinder extends and retracts in the extending arm at the other end of the screening trough, when the piston rod of the first air cylinder is separated from the extending arm, the driving part drives one end of the screening trough, which is close to the first air cylinder, to lift so as to realize rotation along the axis of the fixed rod, sand which is dehydrated in the screening trough is conveniently discharged to the sand discharging hopper to be discharged, and when the piston rod of the first air cylinder is butted with the extending arm again, the effect of fixedly supporting the screening trough is achieved;
the lifting platform is arranged, so that on one hand, the lifting platform rises, the height difference between the screening trough and the diversion trench is reduced, and the separation effect is effectively prevented from being influenced by splashing when sand and cement slurry water fall into the screening trough; on the other hand, the lifting platform descends to increase the height difference between the screening trough and the diversion trench, so that enough space is provided for discharging the gravel, and the screening trough is effectively prevented from interfering with the diversion trench in the rotation process;
when the piston rod of fourth cylinder contracts, the inner wall laminating in first spliced pole and end second through-hole to seal the end, thereby reduce partial rubble and get into hot-blast pipe and spray pipe and lead to its possibility of taking place to block up, the piston rod extension of fourth cylinder drives the lifter plate and slides towards keeping away from outlet pipe or outlet duct direction respectively, thereby drive the extension of flexible hose, first spliced pole breaks away from with the suction head through-hole, realize the intercommunication of end, thereby wash the grit respectively and dry.
Drawings
FIG. 1 is a schematic view showing an internal structure of a casing in the embodiment;
FIG. 2 is a schematic view showing an inner structure of a drum in the embodiment;
FIG. 3 is a schematic structural view of a hot air pipe and a water spray pipe in the embodiment;
FIG. 4 is an exploded view of the opening and closing assembly in the embodiment;
FIG. 5 is a schematic structural view of a sand dewatering mechanism in the embodiment;
fig. 6 is a schematic structural view of the connecting assembly in the embodiment.
In the figure, 1, a housing; 11. a hot gas pipe; 111. an air outlet pipe; 12. a water spray pipe; 121. a water outlet pipe; 13. a diversion trench; 14. a slurry receiving trough; 141. a drain pipe; 15. a lifting platform; 16. a sand discharge hopper; 2. a drum; 21. a first screen hole; 23. a feed hopper; 24. a stone discharge hopper; 22. closing the plate; 3. a first drive assembly; 31. a rotating shaft; 32. a driven wheel; 33. a driving wheel; 34. a transmission belt; 35. a first drive motor; 4. an opening and closing assembly; 41. a connecting disc; 411. a first through hole; 42. connecting the columns; 421. a first connecting column; 422. a second connecting column; 43. a lifting plate; 44. a tip; 441. a second through hole; 45. a flexible hose; 46. a fourth cylinder; 5. a sand dewatering mechanism; 51. a support frame; 52. a slider; 53. a material screening groove; 531. a second sieve pore; 532. a baffle plate; 533. a third cylinder; 54. a second drive assembly; 541. a second drive motor; 542. a turntable; 543. a drive plate; 544. a slider; 545. a connecting rod; 546. a chute; 547. a card slot; 55. a fixed mount; 56. a drive member; 6. a connecting assembly; 61. an extension arm; 62. a first cylinder; 63. and (5) fixing the rod.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the sand-stone separator disclosed by the present invention comprises a housing 1, a roller 2 rotatably connected in the housing 1 around its own axis and having an open end, a first driving assembly 3 for driving the roller 2 to rotate, and a sealing plate 22 fixedly connected to the housing 1 and rotatably connected to the open end of the roller 2. The sealing plate 22 is provided with a feed hopper 23 and a stone discharge hopper 24 positioned below the feed hopper 23, the side wall of the roller 2 is provided with a first sieve pore 21 only for sand to pass through, and the inner side wall of the roller 2 is provided with a spiral pushing blade (not marked in the figure).
Referring to fig. 1 and 2, the first driving assembly 3 includes a rotating shaft 31 coaxially and fixedly connected to the end surface of the drum 2 and rotatably connected to the housing 1 around its own axis, a driven wheel 32 coaxially and fixedly sleeved on the rotating shaft 31 and located outside the housing 1, a driving wheel 33 located below the driven wheel 32 and rotatably connected to the housing 1 around its own axis, a transmission belt 34 wound around the driving wheel 33 and the driven wheel 32, and a first driving motor 35 having an output shaft coaxially and fixedly inserted in the driving wheel 33. The casing 1 is provided with a hot air pipe 11 having one end coaxially inserted through the sealing plate 22 and the other end rotatably connected to the inner wall of the end face of the drum 2, and a water spray pipe 12 coaxially installed in the hot air pipe 11 along the axial direction of the drum 2. The hot gas pipe 11 is equipped with the axis direction and is vertical setting and communicates in the outlet duct 111 of the perisporium on the hot gas pipe 11, and the outlet duct 111 is provided with a plurality ofly and distributes along the axis direction of hot gas pipe 11, and spray pipe 12 is equipped with the outlet pipe 121 that the axis direction is vertical setting and communicates perisporium under spray pipe 12, and outlet pipe 121 is provided with a plurality ofly and distributes along the axis direction of outlet pipe 121, and outlet pipe 121 seals to wear to locate hot gas pipe 11.
Referring to fig. 3 and 4, the air outlet pipe 111 and the water outlet pipe 121 are respectively provided with a first opening and closing assembly 4 and a second opening and closing assembly 4 for controlling the opening of the air outlet pipe 111 to be closed and communicated and controlling the opening of the water outlet pipe 121 to be closed and communicated. The first opening and closing assembly 4 and the second opening and closing assembly 4 respectively comprise a connecting disc 41 which is horizontally arranged and fixedly connected in the air outlet pipe 111 or the water outlet pipe 121, a connecting column 42 which is vertically arranged and fixedly connected to one side of the connecting disc 41 far away from the air outlet pipe 111 or the water outlet pipe 121, a lifting plate 43 which is connected between two adjacent air outlet pipes 111 or water outlet pipes 121 and slides vertically, an end 44 which is fixedly connected to the lifting plate 43, a flexible hose 45 which is arranged between the water outlet pipes 121 and the end 44 or between the air outlet pipes 111 and the end 44 in a sealing manner, and a fourth cylinder 46 which drives the lifting plate 43 to slide. The connecting disc 41 is provided with a first through hole 411, the connecting column 42 is composed of a first connecting column 421 and a second connecting column 422 which are distributed from top to bottom, and the diameter of the first connecting column 421 is larger than that of the second connecting column 422 and smaller than the inner diameter of the telescopic hose 45. The end 44 is provided with a second through hole 441 in a penetrating manner, the first connecting column 421 is slidably inserted into the second through hole 441 on the end 44, the side wall of the first connecting column 421 is attached to the inner wall of the second through hole 441 on the end 44, and the end of the piston rod of the fourth cylinder 46 is fixedly connected to the lifting plate 43 and the cylinder body thereof is fixedly connected to the outer wall of the hot air pipe 11.
Referring to fig. 1 and 5, the casing 1 is provided with a guide chute 13 located below the drum 2, a sand dewatering mechanism 5 located below the guide chute 13, a slurry receiving chute 14 located below the sand dewatering mechanism 5, and a lifting table 15 located on both sides of the slurry receiving chute 14. The slurry receiving tank 14 is communicated with a drain pipe 141, and the sand dewatering mechanism 5 includes a support frame 51 fixedly connected to the upper end surface of the lifting table 15 and respectively located on both sides of the slurry receiving tank 14, a slider 52 connected to the support frame 51 in a sliding manner in the horizontal direction, a screen tank 53 mounted on the slider 52 and having an upper opening, and a second driving unit 54 for driving the slider 52 to reciprocate. The second sieve hole 531 that only supplies muddy water to pass through is all seted up to diapire, the three lateral wall of sieve silo 53, fixedly connected with mount 55 between two support frames 51. The supporting frame 51 is provided with a sliding rail (not shown) extending along the axis of the drum 2, and the sliding member 52 is provided with a sliding projection (not shown) slidably connected to the sliding rail.
The second driving assembly 54 includes a second driving motor 541 fixedly connected to the supporting frame 51, a driving plate 543 with a lower end hinged to the supporting frame 51, a rotating disc 542 driven by the second driving motor 541 and rotatably connected to the supporting frame 51 around an axis thereof, a sliding block 544 eccentrically hinged to the rotating disc 542 and slidably moving along a length direction of the driving plate 543, and a connecting rod 545 fixed to the sliding member 52. An output shaft of the second driving motor 541 penetrates through the supporting frame 51 and is coaxially and fixedly inserted in the rotary plate 542, and a hinge point axis of the driving plate 543, a hinge point axis of the slider 544 and an axis of the rotary plate 542 are parallel. The driving plate 543 is provided with a slot 547 located at a free end of the driving plate 543 and extending along a length direction of the driving plate 543 and a strip-shaped chute 546 for the slider 544 to slide along the length direction of the driving plate 543, and the connecting rod 545 slides and is clamped in the slot 547.
Referring to fig. 5 and 6, a connecting assembly 6 is disposed between the screen trough 53 and the sliding member 52, and the connecting assembly 6 includes a first cylinder 62 fixedly connected to the side of the sliding member 52 close to the screen trough 53, an extension arm 61 protrudingly fixed to the side of the screen trough 53 close to the sliding member 52, and a fixing rod 63 fixed to the sliding member 52. The piston rod of the first cylinder 62 is movably inserted and connected with the extension arm 61 along the axial direction of the extension arm 61, the piston rod of the first cylinder 62 is separated from the extension arm 61 in a contracted state, and the fixed rod 63 is inserted and connected with the extension arm 61 along the axial direction of the extension arm 61. Slurry receiving tank 14 is provided with the driving piece 56 that drives the one end that screen trough 53 is close to first cylinder 62 and goes up and down, and driving piece 56 is the second cylinder, and the vertical setting of axis of the piston rod of second cylinder and activity butt in screen trough 53's lower terminal surface, the cylinder body fixed connection of second cylinder in mount 55, casing 1 are close to the lateral wall of dead lever 63 and are provided with sand discharge hopper 16. The end face of the sieve trough 53 close to the fixing rod 63 is provided with a discharge port, and the upper end of the third cylinder 533 is hinged to the baffle 532 of the sieve trough 53 on the side wall of the discharge port and is arranged in the sieve trough 53 to adjust the opening and closing of the baffle 532 on the discharge port, and the cylinder body of the third cylinder 533 is hinged to the inner wall of the bottom of the sieve trough 53 and the end part of the piston rod of the third cylinder 533 is hinged to the inner wall of the baffle 532.
The implementation process of the embodiment is as follows: pouring the sandstone muddy water in the commercial concrete transport vehicle into the roller 2 through the feed hopper 23; the first driving motor 35 rotates forward, the drum 2 is driven to rotate forward through the driving wheel 33, the transmission belt 34 and the driven wheel 32, the spiral pushing blades in the drum 2 stir and separate sand, gravel and muddy water, the sand and the muddy water fall into the diversion trench 13 through the first sieve holes 21 and then fall onto the sieve trench 53, and sand and gravel separation is achieved; after the sand and stone are separated, a piston rod of the fourth cylinder 46 extends to drive the lifting plate 43 to slide towards the direction far away from the water outlet pipe 121 or the air outlet pipe 111 respectively, so that the telescopic hose 45 is driven to extend, the first connecting column 421 is separated from the suction head through hole, the end head 44 is communicated, the sand and stone are washed and dried respectively, and after the drying is finished, the roller 2 is reversely driven to rotate to discharge the stone in the roller 2 through the stone discharge hopper 24;
in an initial state, the lifting platform 15 is lifted, so that the height difference between the screening trough 53 and the diversion trench 13 is reduced, splashing generated when sand and cement slurry fall into the screening trough 53 is effectively prevented, and part of cement slurry falling onto the screening trough 53 falls into the slurry receiving trough 14 through the second sieve holes 531 on the screening trough 53; the lifting platform 15 descends, the second driving motor 541 drives the rotary table 542 to do circular motion, the slider 544 on the rotary table 542 drives the driving plate 543 to do reciprocating motion, the driving plate 543 drives the sliding piece 52 to do reciprocating linear motion, the gravels in the screening trough 53 move under the action of inertia and vibration, the looseness among the gravels is improved, a certain hydrophobic space is provided, the water permeability among the gravels is improved, and the separation effect and the sand-water separation efficiency are effectively improved; after the dehydration is accomplished, the piston rod shrink of first cylinder 62 breaks away from in extending arm 61, the piston rod extension butt of second cylinder is in the lower terminal surface of screen trough 53, thereby it goes up and down to realize rotating along the dead lever 63 axis to drive the one end that screen trough 53 is close to first cylinder 62, and simultaneously, the extension of the piston rod of third cylinder 533 drives the free end of baffle 532 upwards to keep away from screen trough 53 direction and rotate, thereby realize opening of discharge gate, be convenient for discharge sand discharge hopper 16 discharge with the completion dehydration's in the screen trough 53.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. A sand and stone separator which is characterized in that: including casing (1), rotate around self axis and connect in casing (1) and one end and be cylinder (2), driving roll (2) pivoted first drive assembly (3), fixed connection in casing (1) and rotate and connect in cylinder (2) have shrouding (22) of open-ended one end, shrouding (22) are provided with feeder hopper (23) and are located stone discharge hopper (24) of feeder hopper (23) below, only supply first sieve mesh (21) that sand passes through to be seted up to the lateral wall of cylinder (2), and the inside wall of cylinder (2) is provided with spiral pushing blade, casing (1) is provided with guiding gutter (13) that is located the below of cylinder (2), is located sand dewatering mechanism (5) of the below of guiding gutter (13) and is located slurry receiving groove (14) of sand dewatering mechanism (5) below, sand dewatering mechanism (5) are including support frame (51) that are located slurry receiving groove (14) both sides respectively, The device comprises a sliding part (52) connected with a support frame (51) in a sliding mode along the horizontal direction, a screening trough (53) installed on the sliding part (52) and provided with an upper opening, and a second driving assembly (54) driving the sliding part (52) to move back and forth, wherein a second screening hole (531) only allowing muddy water to pass through is formed in the screening trough (53).
2. A sand separator according to claim 1, wherein: the second driving assembly (54) comprises a second driving motor (541) fixedly connected to the support frame (51), a driving plate (543) with a lower end hinged to the support frame (51), a turntable (542) driven by the second driving motor (541) and rotatably connected to the support frame (51) around an axis of the turntable, a slider (544) eccentrically hinged to the turntable (542) and sliding along a length direction of the driving plate (543), and a connecting rod (545) fixed to the slider (52), wherein an output shaft of the second driving motor (541) penetrates through the support frame (51) and is coaxially and fixedly inserted into the turntable (542), an axis of a hinge point of the driving plate (543), an axis of a hinge point of the slider (544), and an axis of the turntable (542) are parallel, the driving plate (543) is provided with a clamping groove (547) located at a free end of the driving plate (543) and extending along the length direction of the driving plate (543), and the slider (544) is driven along the driving plate (543) The strip-shaped sliding groove (546) slides in the length direction of the movable plate (543), and the connecting rod (545) slides and is clamped in the clamping groove (547).
3. A sand separator according to claim 2, wherein: be equipped with coupling assembling (6) between sieve silo (53) and slider (52), coupling assembling (6) including fixed connection in slider (52) are close to the first cylinder (62) of the side of sieve silo (53), the protrusion is fixed in sieve silo (53) is close to the side of slider (52) prolong arm (61) and be fixed in dead lever (63) of slider (52), the piston rod of first cylinder (62) with prolong arm (61) along the axis direction movably the inserting of extending arm (61) and be connected, the piston rod of first cylinder (62) breaks away from under the state of shrink in prolong arm (61), dead lever (63) with prolong arm (61) along prolong arm (61) axis direction and insert and establish the connection, thick liquid receives silo (14) and is provided with drive sieve silo (53) and is close to drive piece (56) that the one end of first cylinder (62) goes up and down, a sand discharge hopper (16) is arranged on the side wall of the shell (1) close to the fixed rod (63).
4. A sand separator according to claim 3, wherein: two fixedly connected with mount (55) between support frame (51), driving piece (56) are the second cylinder, the vertical setting of axis and the activity butt of the piston rod of second cylinder in the lower terminal surface of sieve silo (53), the cylinder body fixed connection of second cylinder in mount (55).
5. A sand separator according to claim 4, wherein: the end face of the sieve trough (53) close to the fixing rod (63) is provided with a discharge port, and the upper end of the sieve trough is hinged to a baffle (532) of the side wall of the discharge port of the sieve trough (53) and a third cylinder (533) which is arranged in the sieve trough (53) and used for adjusting the opening and closing of the discharge port by the baffle (532), and the cylinder body of the third cylinder (533) is hinged to the inner wall of the bottom of the sieve trough (53) and the end part of a piston rod of the third cylinder (533) is hinged to the inner wall of the baffle.
6. A sand separator according to claim 5, wherein: the casing (1) is provided with elevating platform (15) that are located thick liquid receiving groove (14) both sides respectively, support frame (51) fixed connection is in the up end of elevating platform (15).
7. A sand separator according to claim 1, wherein: casing (1) is provided with the coaxial dress of wearing to locate shrouding (22) of one end and other end along the axial of cylinder (2) and rotates to connect in hot-blast pipe (11) of cylinder (2) terminal surface inner wall and place spray pipe (12) of hot-blast pipe (11) in coaxial, and hot-blast pipe (11) are equipped with that the axis direction is vertical setting and communicates in outlet duct (111) of hot-blast pipe (11) perisporium, and outlet duct (111) are provided with a plurality ofly and distribute along the axis direction of hot-blast pipe (11), and spray pipe (12) are equipped with outlet pipe (121) that the axis direction is vertical setting and communicates perisporium under spray pipe (12), outlet pipe (121) are provided with a plurality ofly and distribute along the axis direction of outlet pipe (121), and outlet pipe (121) are sealed to wear.
8. A sand separator according to claim 7, wherein: the air outlet pipe (111) and the water outlet pipe (121) are respectively provided with a first opening and closing assembly (4) and a second opening and closing assembly (4) which are used for controlling the opening of the air outlet pipe (111) to be closed and communicated and controlling the opening of the water outlet pipe (121) to be closed and communicated.
9. A sand separator according to claim 8, wherein: the first opening and closing assembly (4) and the second opening and closing assembly (4) respectively comprise a connecting disc (41) which is horizontally arranged and fixedly connected in the air outlet pipe (111) or the water outlet pipe (121), a connecting cylinder (42) which is vertically arranged and fixedly connected to one side of the connecting disc (41) far away from the air outlet pipe (111) or the water outlet pipe (121), a lifting plate (43) which is connected between two adjacent air outlet pipes (111) or water outlet pipes (121) and slides vertically, an end (44) which is fixedly connected to the lifting plate (43), a flexible hose (45) which is hermetically sealed and arranged between the water outlet pipe (121) and the end (44) or between the air outlet pipe (111) and the end (44), and a fourth cylinder (46) which drives the lifting plate (43) to slide, wherein a first through hole (411) is formed in the connecting disc (41), and the connecting cylinder (42) consists of a first connecting column (421) and a second connecting column (422), the diameter of first spliced pole (421) is greater than second spliced pole (422) and is less than the internal diameter of expansion hose (45), second through-hole (441) have been seted up in end (44) run through, second through-hole (441) on first spliced pole (421) and end (44) slip is pegged graft, the lateral wall of first spliced pole (421) and the laminating of second through-hole (441) inner wall of end (44), the equal fixed connection in the outer wall of lifter plate (43) and its cylinder body fixed connection in steam pipe (11) of piston rod tip of fourth cylinder (46).
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| CN202010259139 | 2020-04-03 | ||
| CN2020102591393 | 2020-04-03 |
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| CN111589686A true CN111589686A (en) | 2020-08-28 |
| CN111589686B CN111589686B (en) | 2021-06-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112058463A (en) * | 2020-09-22 | 2020-12-11 | 汉中尧柏磊金节能环保建材有限公司 | Concrete clout recovery processing system |
| CN112893074A (en) * | 2020-12-29 | 2021-06-04 | 浙江林龙物流有限公司 | Backflushing type silt separation device |
| CN113385411A (en) * | 2021-06-29 | 2021-09-14 | 缙云县九州混凝土有限公司 | Concrete batching sorting unit |
| CN113714095A (en) * | 2021-08-24 | 2021-11-30 | 青岛兴业商砼有限公司 | Energy-concerving and environment-protective concrete grit separating centrifuge |
| CN113731784A (en) * | 2021-08-13 | 2021-12-03 | 江苏金圣棋盘玻璃科技发展有限公司 | Quartz sand screening and washing device |
| WO2022058616A1 (en) * | 2020-09-21 | 2022-03-24 | Green Creative | Apparatus with drum for separating packagings and material adhering thereto, with improved environmental impact |
| CN114558371A (en) * | 2022-03-23 | 2022-05-31 | 长睿生物技术(成都)有限公司 | Bacterium zymotic fluid separator |
| CN115007541A (en) * | 2022-05-20 | 2022-09-06 | 江苏金红新材料股份有限公司 | But processing of garnet sand is with cyclic utilization's rinsing equipment |
| CN117018999A (en) * | 2023-09-05 | 2023-11-10 | 江苏万物机械设备制造有限公司 | Drum-type granulator |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1210987A2 (en) * | 2000-12-04 | 2002-06-05 | Hans Huber AG Maschinen- und Anlagenbau | Device for obtaining coarse and fine fractions from a sand mixture |
| CN204247598U (en) * | 2014-11-04 | 2015-04-08 | 广州市盛恒工程机械有限公司 | A kind of sand-stone separator |
| CN204699915U (en) * | 2015-05-26 | 2015-10-14 | 湖北德利威机械设备工程有限公司 | A kind of sand-stone separator |
| CN205926260U (en) * | 2016-07-26 | 2017-02-08 | 天津市晟隆舜混凝土有限公司 | Sand -gravel separation device |
| US9694390B1 (en) * | 2016-09-12 | 2017-07-04 | Sizetec, Inc. | Rotary interstage screen apparatus |
| CN109760211A (en) * | 2019-01-12 | 2019-05-17 | 武汉中阳明建材有限公司 | A kind of mixing plant waste water and dregs recovery system |
| CN208991205U (en) * | 2018-09-08 | 2019-06-18 | 湖南健坤环保工程有限公司 | A kind of multistage sand-gravel separation device |
| CN209034787U (en) * | 2018-11-14 | 2019-06-28 | 杭州金鼎实业有限公司 | A kind of novel sand-stone separator |
| CN209452025U (en) * | 2019-01-21 | 2019-10-01 | 陕西宏基混凝土构件有限责任公司 | A kind of sandstone separator |
| CN210187666U (en) * | 2019-05-25 | 2020-03-27 | 北京中实上庄混凝土有限责任公司 | Concrete sand and stone separator with anti-clogging device |
| CN110918433A (en) * | 2019-11-01 | 2020-03-27 | 西安科技成果转化工程有限公司 | Grit sorting device for engineering machine tool |
-
2020
- 2020-04-28 CN CN202010347623.1A patent/CN111589686B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1210987A2 (en) * | 2000-12-04 | 2002-06-05 | Hans Huber AG Maschinen- und Anlagenbau | Device for obtaining coarse and fine fractions from a sand mixture |
| CN204247598U (en) * | 2014-11-04 | 2015-04-08 | 广州市盛恒工程机械有限公司 | A kind of sand-stone separator |
| CN204699915U (en) * | 2015-05-26 | 2015-10-14 | 湖北德利威机械设备工程有限公司 | A kind of sand-stone separator |
| CN205926260U (en) * | 2016-07-26 | 2017-02-08 | 天津市晟隆舜混凝土有限公司 | Sand -gravel separation device |
| US9694390B1 (en) * | 2016-09-12 | 2017-07-04 | Sizetec, Inc. | Rotary interstage screen apparatus |
| CN208991205U (en) * | 2018-09-08 | 2019-06-18 | 湖南健坤环保工程有限公司 | A kind of multistage sand-gravel separation device |
| CN209034787U (en) * | 2018-11-14 | 2019-06-28 | 杭州金鼎实业有限公司 | A kind of novel sand-stone separator |
| CN109760211A (en) * | 2019-01-12 | 2019-05-17 | 武汉中阳明建材有限公司 | A kind of mixing plant waste water and dregs recovery system |
| CN209452025U (en) * | 2019-01-21 | 2019-10-01 | 陕西宏基混凝土构件有限责任公司 | A kind of sandstone separator |
| CN210187666U (en) * | 2019-05-25 | 2020-03-27 | 北京中实上庄混凝土有限责任公司 | Concrete sand and stone separator with anti-clogging device |
| CN110918433A (en) * | 2019-11-01 | 2020-03-27 | 西安科技成果转化工程有限公司 | Grit sorting device for engineering machine tool |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3114256A1 (en) * | 2020-09-21 | 2022-03-25 | Green Creative | Apparatus with drum separating packaging and material adhering to it, with improved ecological impact |
| WO2022058616A1 (en) * | 2020-09-21 | 2022-03-24 | Green Creative | Apparatus with drum for separating packagings and material adhering thereto, with improved environmental impact |
| CN112058463A (en) * | 2020-09-22 | 2020-12-11 | 汉中尧柏磊金节能环保建材有限公司 | Concrete clout recovery processing system |
| CN112893074A (en) * | 2020-12-29 | 2021-06-04 | 浙江林龙物流有限公司 | Backflushing type silt separation device |
| CN113385411A (en) * | 2021-06-29 | 2021-09-14 | 缙云县九州混凝土有限公司 | Concrete batching sorting unit |
| CN113385411B (en) * | 2021-06-29 | 2022-03-11 | 缙云县九州混凝土有限公司 | Concrete batching sorting unit |
| CN113731784A (en) * | 2021-08-13 | 2021-12-03 | 江苏金圣棋盘玻璃科技发展有限公司 | Quartz sand screening and washing device |
| CN113714095A (en) * | 2021-08-24 | 2021-11-30 | 青岛兴业商砼有限公司 | Energy-concerving and environment-protective concrete grit separating centrifuge |
| CN113714095B (en) * | 2021-08-24 | 2023-02-14 | 青岛兴业商砼有限公司 | Energy-concerving and environment-protective concrete grit separating centrifuge |
| CN114558371A (en) * | 2022-03-23 | 2022-05-31 | 长睿生物技术(成都)有限公司 | Bacterium zymotic fluid separator |
| CN114558371B (en) * | 2022-03-23 | 2023-08-11 | 长睿生物技术(成都)有限公司 | Bacterial fermentation liquid separation device |
| CN115007541A (en) * | 2022-05-20 | 2022-09-06 | 江苏金红新材料股份有限公司 | But processing of garnet sand is with cyclic utilization's rinsing equipment |
| CN115007541B (en) * | 2022-05-20 | 2023-07-04 | 江苏金红新材料股份有限公司 | Recyclable water washing equipment for garnet sand processing |
| CN117018999A (en) * | 2023-09-05 | 2023-11-10 | 江苏万物机械设备制造有限公司 | Drum-type granulator |
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