CN210230264U - Fine sand recovery unit of powder - Google Patents
Fine sand recovery unit of powder Download PDFInfo
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- CN210230264U CN210230264U CN201921042113.2U CN201921042113U CN210230264U CN 210230264 U CN210230264 U CN 210230264U CN 201921042113 U CN201921042113 U CN 201921042113U CN 210230264 U CN210230264 U CN 210230264U
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Abstract
The utility model relates to a working device for recovering concrete raw materials, in particular to a fine sand recovery device with high recovery rate, which mainly comprises a sand screening mechanism, a sand washing device, a fine sand precipitation recovery device and a waste residue pool; the sand and stone screening mechanism comprises a movable base, a screening rack, a supporting roller, a winding belt, a first screening layer, a second screening layer, a sand material recycling box and a vibrator; the sand washing device mainly comprises a vertical bracket, a wheel bucket type sand washing machine, a connecting pipe fitting, a sand washing pool and a power device thereof; the fine sand precipitation recovery device is arranged below the sand washing device and mainly comprises a fine sand precipitation hopper, a guide-out groove, a spiral rotary machine and a galvanized steel pipe; the utility model discloses utilize each mechanism's part to carry out the work of filtering separation, elutriation separation, gyration separation in proper order, not only can improve the fine sand rate of recovery, improve the content of fine particle in the sand material to can reduce the cost in the engineering construction, and make the peace of concrete dependable and stable performance.
Description
Technical Field
The utility model relates to a solve the equipment that concrete raw materials retrieved, indicate a recovery rate high fine sand recovery unit of powder especially.
Background
In a regional terminal ship lock project, such as a stone kiln terminal ship lock project, one line and two lines of ship lock walls are in a ship and dock type structure, the total amount of concrete required for manufacturing the ship lock walls is 70 ten thousand meters 3, and the sand amount is about 45 ten thousand meters3Wherein, the production of the sand and stone in the required raw materials needs to adopt the riverbed dredged materials and the excavated materials for mixing and screening, but the fine particles of the sand in the dredged materials are less,the workability of concrete is unstable, pipes are easily blocked during pumping, smooth pouring of the concrete cannot be guaranteed, and the problem of balance of fine river sand particles is solved as far as possible at present, so that smooth pouring of the concrete can be guaranteed.
In order to overcome the existing problems, the prior art has made many solutions, such as increasing the content of cement, fly ash, etc. in the raw materials, reducing the water-cement ratio, or directly blending purchased fine sand, etc., but if adding the methods of cement, fly ash, etc., the cost is extremely high and the concrete strength is difficult to guarantee; if the fine sand is directly purchased externally, the market price is very high during implementation, so that the manufacturing cost is seriously increased, and therefore, the problem of concrete workability cannot be effectively solved by the currently obtained solutions, and the cost cannot be controlled within a reasonable range.
Disclosure of Invention
In order to solve the above problems, the present invention aims to disclose a working device for recycling concrete raw materials, and particularly relates to a fine sand recycling device with high recycling rate, so as to solve the problem of small amount of fine particles of river sand raw materials in the concrete of the lock wall.
In order to achieve the above object, the utility model adopts the following technical scheme: a recovery device for fine powder sand is characterized in that the recovery device mainly comprises a sand screening mechanism, a sand washing device, a fine sand precipitation recovery device and a waste residue pool;
the sand screening mechanism comprises a movable base, a screening rack, a supporting roller, a winding belt, a first screening layer, a second screening layer, a sand recycling box and a vibrator; wherein the movable base is arranged below the screening rack to support the screening rack; the screening machine frame is formed into an open frame-shaped cavity structure by assembling two long side plates, short side plates and a bottom plate which are arranged in parallel relatively around, the short side plates are vertically connected between the two long side plates, a feeding hopper is arranged on the outer side of each short side plate, the feeding hopper is arranged on the outer side of each short side plate through a support frame, the mounting position of the feeding hopper is higher than the top of each short side plate, and a discharging opening of the feeding hopper is over against the cavity structure; parallel through grooves are respectively formed in the top and the middle waist of the two long side plates along the length direction, and meanwhile, a cuboid flange slide rail along the length direction is arranged on the inner side wall below the through grooves; the supporting roller is arranged in the through groove and is axially and rotatably arranged on the inner wall of the through groove through the end shaft ends at the two ends to form an installation structure for the supporting roller to rotate around the axis; the first sieve layer and the second sieve layer are sequentially connected and installed on the screening rack through the winding belt from top to bottom, the planar length of the two sieve layers is consistent with that of the bottom plate, and the width of the two sieve layers is smaller than that of the bottom plate; the two screen layers are respectively composed of a filtering screen and a screen edge; one edge of the winding belt is fixedly connected outside the screen edge, the winding belt is provided with a fine hole matched with the edge position of the filter screen, and the filter screen penetrates through the fine hole and is fixedly connected with the screen edge; the other edge of the winding belt extends to the supporting roller in a stretching mode and is wound and surrounded around the supporting roller, and the winding belt is driven to be wound and unwound to adjust the lifting height of the first screen layer or the second screen layer when the supporting roller rotates forwards and reversely; the sand material recovery box is of a box body structure with an opening on the top surface, is arranged between the second sieve layer and the bottom plate and is supported by the bottom plate, and a groove-shaped sliding block capable of sliding along the flange sliding rail is arranged at the edge of the opening of the box body in the length direction; the vibrator is arranged at the side of the screening rack to drive the screening rack to vibrate integrally so as to operate throwing screening work;
the sand washing device mainly comprises a vertical support, a wheel bucket type sand washing machine, a connecting pipe fitting, a sand washing tank and a power device thereof, wherein the vertical support is a trapezoidal support, the main body of the vertical support consists of a counterweight support and a side ladder arranged by depending on the counterweight support, the top surface of the vertical support is provided with a working platform for installing the sand washing tank, and the horizontal positions of the top of the vertical support and the top of the movable base are equal in height or similar; the sand washing pool is formed into a square groove type structure which stores sand materials and supports a bucket wheel type sand washing machine to work, a through hole is formed in the bottom of the sand washing pool and serves as a tail water outlet, a connecting pipe is installed at the tail water outlet, one end of the connecting pipe is communicated with the tail water outlet, and the other end of the connecting pipe is obliquely and downwards communicated into the fine sand precipitation and recovery device from the tail water outlet; the wheel bucket type sand washer is connected with the power device and then is installed in the sand washing pool in a suspension manner;
the fine sand precipitation recovery device is arranged below the sand washing device and mainly comprises a fine sand precipitation hopper, a guide-out groove, a spiral rotary machine and a galvanized steel pipe, wherein the fine sand precipitation hopper is formed into a pyramid-shaped cavity structure, a tail water inlet is formed near the top and is communicated with the sand washing tank through a connecting pipe fitting, and a slag discharge port connected with the galvanized steel pipe is formed near the bottom; the spiral rotary machine is arranged on the fine sand settling hopper.
Preferably, the waste slag pool is communicated with the fine sand sedimentation hopper through a galvanized steel pipe, and the galvanized steel pipe is obliquely and downwards connected to the waste slag pool from the fine sand sedimentation hopper.
Preferably, the bucket wheel type sand washer comprises a rotating impeller arranged in a sand washing pool, the rotating impeller is formed by arranging a plurality of polygonal blades around the center of the impeller according to a circumferential matrix, a rotating shaft is arranged at the center of the rotating impeller, the power device mainly comprises a motor and a speed reducer which are electrically connected, the motor is arranged on the outer side wall of the sand washing pool and is electrically connected with the rotating shaft in a transmission manner so as to drive the rotating shaft to rotate and drive the rotating impeller to rotate through the motor, the polygonal blades are of a sheet-shaped structure and can be formed into a parallelogram or a rectangle or a trapezoid, and the blades are tangent to the circumferential curved surface of the rotating impeller.
Preferably, the spiral slewing machine mainly comprises a transmission motor, a conveying groove and a threaded rotating shaft, the threaded rotating shaft is axially sleeved in the conveying groove and then integrally and vertically installed in the fine sand settling hopper, the top of the threaded rotating shaft penetrates through the top surface of the fine sand settling hopper and is arranged outside the fine sand settling hopper and in driving connection with the transmission motor, and the bottom of the threaded rotating shaft is connected with an emptying valve; the conveying groove is provided with a sand discharge port close to the top, and fine powder sand rotationally separated by the threaded rotating shaft is discharged from the sand discharge port through the sand discharge port.
Preferably, the movable base is formed into a movable structure and mainly comprises a supporting plate frame, a supporting underframe, a spiral positioning shaft, an anti-skid turnover plate and a sliding wheel, wherein the supporting plate frame and the supporting underframe are assembled and connected up and down, and the anti-skid turnover plate, the spiral positioning shaft and the sliding wheel are respectively arranged on the bottom surface of the supporting underframe; the bottom of the outer sides of the two long side plates of the screening frame is respectively and elastically connected with the side surfaces of the supporting plate frames through 2-3 vibrating screen springs.
Preferably, the side ladder is formed into a step platform or a vertical ladder stand structure.
Preferably, the initial end of the guide-out groove of the fine sand precipitation recovery device is connected with a sand discharge port, and the terminal end of the guide-out groove is communicated to the sand conveying belt and the sand bin.
The beneficial effects of the utility model are embodied in: the utility model discloses utilize grit screening mechanism, sand washing device, fine sand to deposit recovery unit and waste slag pool, carry out filtering separation in proper order, elutriation separation, gyration separation, not only can improve the fine sand rate of recovery, improve the content of fine particle in the sand material to can reduce the cost in the engineering construction, and make the peace of concrete dependable and stable performance.
Firstly, the utility model discloses a grit screening mechanism sieves building stones, coarse sand material and thickness sand mixture layer by layer respectively, the both sides of first sieve layer and second sieve layer set up to cylinder winding belt structure simultaneously, can control the height of first sieve layer and second sieve layer through control winding belt tensile and thus can promote accommodation space, simultaneously when the winding belt stops receiving and releasing the fixed cylinder axis of accessible centre gripping fixing tool, when unloading, sand material collection box can slide and take out and pour the thickness mixed sand material into the sand washing device, because the winding belt is flexible winding belt, the gradient of sieve layer can be adjusted so that the sieve layer unloads when first sieve layer, second sieve layer are unloaded; the isomorphic mobile base can provide a movable or fixed stable support chassis and a support plate frame capable of providing vibration adjustment, and the spiral positioning shaft and the anti-skid turnover plate can play the main roles of strengthening fixation and preventing slippage.
Secondly, the sand washing device further separates coarse sand and fine sand mixed materials, and the provided sand washing square groove and the wheel bucket type sand washer elutriate the coarse sand and then separate and discharge the coarse sand and directly discharge tail water into the fine sand sedimentation and recovery device; secondly, the fine sand precipitation recovery device of the utility model firstly concentrates and precipitates the tail water in the fine sand precipitation hopper, and then carries out continuous spiral rotation through the spiral rotation machine, thereby bringing out the fine sand and discharging the fine sand from the sand discharge port, and finally discharges the residual waste water and waste residue after the treatment to the waste residue pool for centralized treatment; the utility model discloses a series of work steps can solve the former material powder fine particle of river sand among the ship lock wall concrete problem less than a few, utilizes the content of the fine particle in the mode improvement sand of retrieving powder fine sand, moreover the utility model discloses an each component part, the simple and convenient high efficiency of structure, make and economize the material easily, can constantly used repeatedly after the manufacturing is accomplished, reduce the cost that fine sand was purchased, also reduce the cost that equipment was updated, it is not only convenient to construct through the device, has still practiced thrift whole engineering cost, retrieves through powder fine sand simultaneously, has reduced the emission of building waste, realizes green's engineering construction, consequently can improve the fine particle content in the finished product sand, ensures the peaceability of pumpability and concrete.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Figure 2 is the structure sketch of the sand screening mechanism of the utility model.
Fig. 3 is a schematic view of the structure of the sand washing device of the utility model.
Fig. 4 is the structure sketch of the fine sand sedimentation recovery device of the utility model.
Fig. 5 is a simplified structure of the spiral rotary machine of the present invention.
Reference is made to the accompanying drawings in which: 1-sand screening mechanism, 2-sand washing device, 3-fine sand precipitation recovery device, 4-waste residue pool, 11-moving base, 12-screening rack, 13-supporting roller, 14-winding belt, 15-first screen layer, 16-second screen layer, 17-sand material recovery box, 18-vibrator, 21-vertical support, 22-bucket type sand washing machine, 23-connecting pipe fitting, 24-sand washing pool, 25-power device, 31-fine sand precipitation bucket, 32-conveying tank, 33-spiral revolving machine, 34-galvanized steel pipe, 35-guiding tank, 111-supporting plate frame, 112-supporting base frame, 113-spiral positioning shaft, 114-anti-skid folded plate and 115-sliding wheel.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:
a recovery unit of fine sand powder, the fine sand is separated and recovered from the sandstone mixture of building stones, coarse sand, medium coarse sand and fine sand, the said recovery unit mainly includes sandstone screening organization 1, sand washing unit 2, fine sand deposits recovery unit 3 and waste slag pool 4;
the sand screening mechanism 1 comprises a movable base 11, a screening rack 12, a supporting roller 13, a winding belt 14, a first screening layer 15, a second screening layer 16, a sand recycling box 17 and a vibrator 18; wherein the movable base 11 is installed below the sieving frame 12 to support the sieving frame 12; the sieving frame 12 is formed by assembling two long side plates, short side plates and a bottom plate which are arranged in parallel relatively around an open frame-shaped cavity structure, the short side plates are vertically connected between the two long side plates, a feeding hopper is arranged on the outer side of each short side plate, the feeding hopper is arranged on the outer side of each short side plate through a support frame, the mounting position of the feeding hopper is higher than the top of each short side plate, and a discharging opening of the feeding hopper is over against the cavity structure; parallel through grooves are respectively formed in the top and the middle waist of the two long side plates along the length direction, and meanwhile, a cuboid flange slide rail along the length direction is arranged on the inner side wall below the through grooves; the supporting roller 13 is arranged in the through groove and is axially and rotatably arranged on the inner wall of the through groove through the final shaft ends at two ends to form an installation structure for the supporting roller 13 to rotate around the axis; the first sieve layer 15 and the second sieve layer 16 are sequentially connected and installed on the screening rack 12 through the winding belt 14 from top to bottom, the planar length of the two sieve layers is consistent with that of the bottom plate, and the width of the two sieve layers is smaller than that of the bottom plate; the two screen layers are respectively composed of a filtering screen and a screen edge, the filtering screen and the screen edge are both made of metal materials, the two screens are respectively stone and coarse sand screens, and the specifications of the screens are different and depend on the grain size of sand; one edge of the winding belt 14 is fixedly connected to the outside of the screen edge in a surrounding mode, the winding belt 14 is provided with a fine hole matched with the edge position of the filter screen, and the filter screen penetrates through the fine hole and is fixedly connected with the screen edge; the other edge of the winding belt 14 extends to the supporting roller 13 in a stretching mode and is wound and surrounded around the supporting roller 13, and the winding belt 14 is driven to be wound and unwound to adjust the lifting height of the first sieve layer 15 or the second sieve layer 16 when the supporting roller 13 rotates forwards and reversely; the sand recovery box 17 is of a box body structure with an opening on the top surface, is arranged between the second sieve layer 16 and the bottom plate and is supported by the bottom plate, and a groove-shaped sliding block which can slide along the flange sliding rail is arranged on the edge of the opening of the box body in the length direction; the vibrator 18 is installed at the side of the sieving frame 12 to drive the sieving frame 12 to vibrate integrally to operate the throwing sieving work; when discharging, the sand material recycling box 17 can be taken out in a sliding mode and the coarse and fine mixed sand materials are poured into the sand washing device 2, and when the first sieve layer 15 and the second sieve layer 16 are discharged, due to the fact that the winding belt 14 is the flexible winding belt 14, the inclination of the sieve layers can be adjusted so that the sieve layers can discharge materials conveniently;
the movable base 11 is formed into a movable structure and mainly comprises a supporting plate frame 111, a supporting bottom frame 112, a spiral positioning shaft 113, an anti-skid turnover plate 114 and a sliding wheel 115, wherein the supporting plate frame 111 and the supporting bottom frame 112 are assembled and connected up and down, and the anti-skid turnover plate 114, the spiral positioning shaft 113 and the sliding wheel 115 are respectively arranged on the bottom surface of the supporting bottom frame 112; the bottom of the outer side of the two long side plates of the screening frame 12 is respectively elastically connected with the side surface of the support plate frame 111 through 2-3 vibrating screen springs; furthermore, the vibrating screen spring is a vibrating screen damping spring, and is fixedly connected with the supporting plate frame 111 and the screening rack 12 through welding to form an elastic movable mounting structure; the supporting plate frame 111 is a three-dimensional frame structure formed by cross splicing of a plurality of steel bars, and the top area of the supporting plate frame 111 is matched with the bottom area of the screening rack 12; the supporting underframe 112 is formed into a box structure for fixedly supporting the supporting plate frame 111, the bottom surface of the box is provided with a wheel groove for mounting the sliding wheel 115 and a hollow groove for accommodating the spiral positioning shaft 113, the sliding wheel 115 is mounted at the wheel groove of the supporting underframe 112 and is provided with at least four sliding wheels 115 for supporting sliding movement; the anti-skid turnover plate 114 is arranged at the side of the sliding wheel 115 and is fixed by hinging, when the sliding wheel 115 runs, the anti-skid turnover plate 114 turns upwards to avoid influencing the sliding of the mobile base 11, and when the sliding wheel 115 is static, the anti-skid turnover plate 114 turns downwards and is tightly propped against the ground to prevent the sliding of the mobile base 11; the screw positioning shaft 113 is integrally formed to comprise a limiting cap and a screw rod, the screw positioning shaft 113 is installed on the bottom surface of the box in a penetrating mode, the limiting cap is installed above the bottom surface of the box to limit the downward extending length of the screw rod through the limiting cap and prevent the screw positioning shaft 113 from being separated from the box, meanwhile, a tightness adjusting sleeve sleeved outside the screw rod is arranged on the bottom surface of the box, the screw rod is adjusted to ascend and descend through the tightness adjusting sleeve, when the sliding wheel 115 is static, the screw rod is adjusted downward to tightly abut against the ground or buried in the ground, sliding of the movable base 11 is further prevented, when the sliding wheel 115 slides, the screw rod is adjusted upward to be accommodated through a hollow groove, and the screw positioning shaft 113 is prevented from contacting the ground to;
the sand washing device 2 mainly comprises a vertical support 21, a wheel bucket type sand washing machine 22, a connecting pipe fitting 23, a sand washing tank 24 and a power device 25 thereof, wherein the vertical support 21 is a trapezoidal support, the main body of the vertical support is composed of a counterweight support and a side ladder supported by the counterweight support, the top surface of the vertical support is provided with a working platform for installing the sand washing tank 24, and the horizontal positions of the top of the vertical support 21 and the top of the movable base 11 are equal in height or approximate; the side ladder is formed into a step platform or a vertical ladder stand structure, wherein the side ladder of the middle step platform is a protruded step boss, and the vertical ladder stand structure is an inclined ladder stand structure; the sand washing tank 24 is formed into a square groove type structure which stores sand materials and supports the operation of the bucket wheel type sand washer 22, the bottom of the sand washing tank 24 is provided with a through hole which is a tail water outlet, a connecting pipe 23 is arranged at the tail water outlet, one end of the connecting pipe 23 is communicated with the tail water outlet, the other end of the connecting pipe 23 is obliquely and downwards communicated into the fine sand precipitation recovery device 3 from the tail water outlet, and the connecting pipe 23 can be a galvanized steel pipe 34 with the diameter of 300 mm; the wheel bucket type sand washer 22 is connected with a power device 25 and then is installed in a sand washing pool 24 in a suspension mode; the bucket wheel type sand washer 22 comprises a rotating impeller which is arranged in a sand washing pool 24, the rotating impeller is formed by arranging a plurality of polygonal blades around the center of the impeller in a circumferential matrix manner, a rotating shaft is arranged at the center of the rotating impeller, a power device 25 mainly comprises a motor and a speed reducer which are electrically connected, the motor is arranged on the outer side wall of the sand washing pool 24 and is electrically connected with the rotating shaft in a transmission manner so as to drive the rotating shaft to rotate and drive the rotating impeller to rotate through the motor, the polygonal blades are of a sheet-shaped structure and can be formed into a parallelogram or a rectangle or a trapezoid, and the blades are tangent to the circumferential curved surface of the rotating impeller;
the fine sand precipitation recovery device 3 is arranged below the sand washing device 2 and mainly comprises a fine sand precipitation hopper 31, a guide groove 35, a spiral rotary machine 33 and a galvanized steel pipe 34, wherein the fine sand precipitation hopper 31 is formed into a pyramid-shaped cavity structure, a tail water inlet is formed near the top and is communicated with the sand washing pool 24 through a connecting pipe fitting 23, and a slag discharge port connected with the galvanized steel pipe 34 is formed near the bottom; the spiral slewing machine 33 is arranged on the fine sand settling hopper 31, wherein the spiral slewing machine 33 mainly comprises a transmission motor, a conveying groove 32 and a threaded rotating shaft, the threaded rotating shaft is axially sleeved in the conveying groove 32 and then integrally and vertically arranged in the fine sand settling hopper 31, the top of the threaded rotating shaft penetrates through the top surface of the fine sand settling hopper 31 and is arranged outside the fine sand settling hopper 31 and is in driving connection with the transmission motor, and the bottom of the threaded rotating shaft is connected with an emptying valve; a sand discharge port is formed in the position, close to the top, of the conveying groove 32, and fine powder sand separated by rotation of the threaded rotating shaft is discharged from the sand discharge port through the sand discharge port; the initial end of a guide-out groove 35 of the fine sand precipitation recovery device 3 is connected with a sand discharge port, the terminal end of the guide-out groove is communicated to a sand conveying belt and a sand bin, the guide-out groove 35 is an inclined conveying through groove, and the sand conveying belt is a drum-type conveying belt and is connected to the sand bin with sufficient space;
the waste slag pool 4 is communicated with the fine sand settling hopper 31 through a galvanized steel pipe 34, the galvanized steel pipe 34 is obliquely and downwards connected to the waste slag pool 4 from the fine sand settling hopper 31, and the galvanized steel pipes 34 can be two galvanized steel pipes 34 with the diameter of 100mm, so that the galvanized steel pipes can be naturally discharged into the waste slag pool 4.
The method for operating the fine sand recovery device mainly comprises the following steps:
1) and (4) screen layer separation: pouring the sand-gravel mixture into the sand-gravel screening mechanism 1, starting the vibrator 18 to make the screening rack 12 vibrate and start the sand-gravel mixture throwing motion, isolating stones on the first screen layer 15 through the first screen layer 15, isolating coarse sand on the second screen layer 16 through the second screen layer 16, screening and filtering the coarse and fine sand mixture to fall into a sand material recovery box 17 at the bottom, screening and distributing the stones and the coarse sand of the first screen layer 15 and the second screen layer 16 through an adjusting winding belt 14, and collecting the coarse and fine sand mixture screened and discharged through the two screen layers by the sand material recovery box 17 and leading out the coarse and fine sand mixture in a sliding pull-out manner;
2) elutriation and separation: conveying the coarse and fine sand mixture in the sand material recovery box 17 to a sand washing pool 24 of a sand washing device 2, starting a wheel bucket type sand washing machine 22, elutriating and separating the coarse and fine sand mixture, stirring, turning, elutriating the coarse sand material in water in the sand washing pool 24, separating and dehydrating the coarse sand material in a rotating impeller, discharging the coarse sand material to a sand material conveyer belt and inputting the sand material conveyer belt into a sand storage bin, and transmitting the rest tail water to a fine sand settling hopper 31 of a fine sand settling recovery device 3 through a connecting pipe 23;
3) rotating and separating: in the fine sand precipitation hopper 31, tail water is intensively precipitated at the bottom of the fine sand precipitation hopper 31, a spiral rotary machine 33 is started to carry out rotary separation on the tail water and separate fine sand and impurity wastewater, the fine sand rises to a sand discharge port along with the rotary force of the spiral shaft, then the fine sand is transferred to a sand material conveying belt through a guide-out groove 35 and is input into a sand silo, and the impurity wastewater is transmitted to a waste residue tank 4 through a galvanized steel pipe 34.
The above, it is only the preferred embodiment of the present invention, not right the technical scope of the present invention makes any restriction, the technical personnel of the industry, under this technical scheme's enlightenment, can do some deformation and modification, all the basis the utility model discloses a technical essence is to any modification, the equivalent change and the modification of the above embodiment do, all still belong to the technical scheme's scope of the present invention.
Claims (7)
1. A recovery device for fine powder sand is characterized in that the recovery device mainly comprises a sand screening mechanism, a sand washing device, a fine sand precipitation recovery device and a waste residue pool;
the sand screening mechanism comprises a movable base, a screening rack, a supporting roller, a winding belt, a first screening layer, a second screening layer, a sand recycling box and a vibrator; wherein the movable base is arranged below the screening rack to support the screening rack; the screening machine frame is formed into an open frame-shaped cavity structure by assembling two long side plates, short side plates and a bottom plate which are arranged in parallel relatively around, the short side plates are vertically connected between the two long side plates, a feeding hopper is arranged on the outer side of each short side plate, the feeding hopper is arranged on the outer side of each short side plate through a support frame, the mounting position of the feeding hopper is higher than the top of each short side plate, and a discharging opening of the feeding hopper is over against the cavity structure; parallel through grooves are respectively formed in the top and the middle waist of the two long side plates along the length direction, and meanwhile, a cuboid flange slide rail along the length direction is arranged on the inner side wall below the through grooves; the supporting roller is arranged in the through groove and is axially and rotatably arranged on the inner wall of the through groove through the end shaft ends at the two ends to form an installation structure for the supporting roller to rotate around the axis; the first sieve layer and the second sieve layer are sequentially connected and installed on the screening rack through the winding belt from top to bottom, the planar length of the two sieve layers is consistent with that of the bottom plate, and the width of the two sieve layers is smaller than that of the bottom plate; the two screen layers are respectively composed of a filtering screen and a screen edge; one edge of the winding belt is fixedly connected outside the screen edge, the winding belt is provided with a fine hole matched with the edge position of the filter screen, and the filter screen penetrates through the fine hole and is fixedly connected with the screen edge; the other edge of the winding belt extends to the supporting roller in a stretching mode and is wound and surrounded around the supporting roller, and the winding belt is driven to be wound and unwound to adjust the lifting height of the first screen layer or the second screen layer when the supporting roller rotates forwards and reversely; the sand material recovery box is of a box body structure with an opening on the top surface, is arranged between the second sieve layer and the bottom plate and is supported by the bottom plate, and a groove-shaped sliding block capable of sliding along the flange sliding rail is arranged at the edge of the opening of the box body in the length direction; the vibrator is arranged at the side of the screening rack to drive the screening rack to vibrate integrally so as to operate throwing screening work;
the sand washing device mainly comprises a vertical support, a wheel bucket type sand washing machine, a connecting pipe fitting, a sand washing tank and a power device thereof, wherein the vertical support is a trapezoidal support, the main body of the vertical support consists of a counterweight support and a side ladder arranged by depending on the counterweight support, the top surface of the vertical support is provided with a working platform for installing the sand washing tank, and the horizontal positions of the top of the vertical support and the top of the movable base are equal in height or similar; the sand washing pool is formed into a square groove type structure which stores sand materials and supports a bucket wheel type sand washing machine to work, a through hole is formed in the bottom of the sand washing pool and serves as a tail water outlet, a connecting pipe is installed at the tail water outlet, one end of the connecting pipe is communicated with the tail water outlet, and the other end of the connecting pipe is obliquely and downwards communicated into the fine sand precipitation and recovery device from the tail water outlet; the wheel bucket type sand washer is connected with the power device and then is installed in the sand washing pool in a suspension manner;
the fine sand precipitation recovery device is arranged below the sand washing device and mainly comprises a fine sand precipitation hopper, a guide-out groove, a spiral rotary machine and a galvanized steel pipe, wherein the fine sand precipitation hopper is formed into a pyramid-shaped cavity structure, the position close to the top is communicated with a sand washing tank through a connecting pipe fitting, and the position close to the bottom is provided with a slag discharge port connected with the galvanized steel pipe; the spiral rotary machine is arranged on the fine sand settling hopper.
2. The fine sand recovery device as claimed in claim 1, wherein the waste slag pool is communicated with the fine sand settling hopper through a galvanized steel pipe, and the galvanized steel pipe is connected to the waste slag pool from the fine sand settling hopper in an inclined downward manner.
3. The silty-fine sand recovery device as claimed in claim 1, wherein the bucket type sand washer comprises a rotating impeller arranged in the sand washing tank, the rotating impeller is composed of a plurality of polygonal blades arranged in a circumferential matrix around the center of the impeller, a rotating shaft is arranged at the center of the rotating impeller, the power device mainly comprises an electric motor and a speed reducer which are electrically connected, the electric motor is electrically connected with the rotating shaft and is used for driving the rotating shaft to rotate and driving the rotating impeller to rotate, the polygonal blades are in a sheet structure and can be shaped into a parallelogram, a rectangle or a trapezoid, and the blades are tangent to the circumferential curved surface of the rotating impeller.
4. The fine sand recovery device according to claim 1, wherein the spiral rotary machine mainly comprises a transmission motor, a conveying trough and a threaded rotating shaft, the threaded rotating shaft is axially sleeved inside the conveying trough and then integrally and vertically installed in the fine sand settling hopper, the top of the threaded rotating shaft penetrates through the top surface of the fine sand settling hopper and is arranged outside the fine sand settling hopper and is in driving connection with the transmission motor, and the bottom of the threaded rotating shaft is connected with an emptying valve; the conveying groove is provided with a sand discharge port close to the top, and fine powder sand rotationally separated by the threaded rotating shaft is discharged from the sand discharge port through the sand discharge port.
5. The fine sand recovery device of claim 1, wherein the movable base is formed into a movable structure and mainly comprises a support plate frame, a support base frame, a spiral positioning shaft, an anti-skid turnover plate and a sliding wheel, the support plate frame and the support base frame are assembled and connected up and down, and the anti-skid turnover plate, the spiral positioning shaft and the sliding wheel are respectively arranged on the bottom surface of the support base frame; the bottom of the outer sides of the two long side plates of the screening frame is respectively and elastically connected with the side surfaces of the supporting plate frames through 2-3 vibrating screen springs.
6. The silty-fine sand reclamation apparatus as recited in claim 1, wherein said side ladders are formed as a step or vertical ladder structure.
7. The recovery device for fine sand of claim 1, wherein the start end of the guiding-out groove of the fine sand settling recovery device is connected with a sand discharge port, and the end of the guiding-out groove is communicated with the sand conveying belt and the sand bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921042113.2U CN210230264U (en) | 2019-07-05 | 2019-07-05 | Fine sand recovery unit of powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921042113.2U CN210230264U (en) | 2019-07-05 | 2019-07-05 | Fine sand recovery unit of powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210230264U true CN210230264U (en) | 2020-04-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328045A (en) * | 2019-07-05 | 2019-10-15 | 广东省水利水电第三工程局有限公司 | A kind of Extra-fine sand recovery system and its working method |
| CN111762857A (en) * | 2020-06-30 | 2020-10-13 | 刘锋 | Environment-friendly treatment method of water purifying agent waste |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328045A (en) * | 2019-07-05 | 2019-10-15 | 广东省水利水电第三工程局有限公司 | A kind of Extra-fine sand recovery system and its working method |
| CN110328045B (en) * | 2019-07-05 | 2024-02-27 | 广东省水利水电第三工程局有限公司 | Fine sand recovery system and working method thereof |
| CN111762857A (en) * | 2020-06-30 | 2020-10-13 | 刘锋 | Environment-friendly treatment method of water purifying agent waste |
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