CN117680276A - Frame type efficient sand washing, dewatering and recycling system and control method - Google Patents
Frame type efficient sand washing, dewatering and recycling system and control method Download PDFInfo
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- CN117680276A CN117680276A CN202410135424.2A CN202410135424A CN117680276A CN 117680276 A CN117680276 A CN 117680276A CN 202410135424 A CN202410135424 A CN 202410135424A CN 117680276 A CN117680276 A CN 117680276A
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- 239000004576 sand Substances 0.000 title claims abstract description 130
- 238000005406 washing Methods 0.000 title claims abstract description 100
- 238000004064 recycling Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 150
- 239000002002 slurry Substances 0.000 claims abstract description 96
- 238000012216 screening Methods 0.000 claims abstract description 42
- 238000012546 transfer Methods 0.000 claims abstract description 39
- 230000001502 supplementing effect Effects 0.000 claims description 45
- 239000007788 liquid Substances 0.000 claims description 42
- 239000000463 material Substances 0.000 claims description 18
- 238000011010 flushing procedure Methods 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 14
- 230000018044 dehydration Effects 0.000 claims description 10
- 238000006297 dehydration reaction Methods 0.000 claims description 10
- 239000010865 sewage Substances 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 230000003139 buffering effect Effects 0.000 claims description 4
- 239000011268 mixed slurry Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 5
- 239000004744 fabric Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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- 238000007873 sieving Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention belongs to the technical field of fine sand equipment, and relates to a frame type efficient sand washing, dewatering and recycling system and a control method. The invention relates to a frame type efficient sand washing, dewatering and recycling system which comprises a feeding module, a water washing and screening module, a transfer slurry supply module, a rotational flow sand washing module and a sand washing and dewatering module. The water washing and screening module and the sand washing and dewatering module both adopt the water washing process, fine sand is recovered from the slurry after vibration dewatering, the loss of fine sand is reduced, and the overall sand yield is improved. The invention can recycle the washed slurry, and the design of the multi-channel water tank can ensure the uniformity of the feeding concentration of the follow-up cyclone sand washing module. The frame type efficient sand washing, dewatering and recycling system adopts a frame type structure to be integrated in the frame, so that the occupied area of equipment is reduced.
Description
Technical Field
The invention belongs to the technical field of fine sand equipment, and relates to a frame type efficient sand washing, dewatering and recycling system and a control method.
Background
At present, a large amount of raw materials and reusable waste materials in industries such as building materials, mines, metals, mines, road construction, residue disposal and the like need to be processed by utilizing sand washing equipment, the sand washing equipment is utilized to remove mud or other impurities covering the surface of sand and stone, and meanwhile, a water vapor layer wrapping sand grains is damaged, so that dehydration is realized to meet the use requirement. According to the different sludge content of the raw materials, a plurality of water washing devices are needed. In order to solve the problems, the invention patent number 202110928576.4 discloses a digital sand washing recycling workstation, which comprises a spiral dewatering screen, a wheel dewatering screen, a high-frequency vibration dewatering screen and a belt scale which are sequentially arranged in series.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a frame type efficient sand washing, dewatering and recycling system, and the technical scheme adopted by the invention is as follows:
frame-type efficient sand washing dehydration recovery system, its characterized in that: comprises a feeding module, a water washing and screening module, a transit slurry supply module, a rotational flow sand washing module and a sand washing and dewatering module;
the feeding module is connected with the water washing screen module;
the water washing screen module comprises a screening mechanism, a first spraying device and a first frame body, wherein a feed inlet is formed in one side of the screening mechanism, a discharge outlet is formed in the other side of the screening mechanism, a multi-layer screen is arranged in the screening mechanism, a slurry collecting tank is arranged at the bottom of the screening mechanism, and the first spraying device is arranged above the multi-layer screen and sprays aggregate falling onto the multi-layer screen at high pressure;
the transfer slurry supply module comprises a transfer water tank which is communicated with the slurry collecting tank and is used for buffering slurry collected in the slurry collecting tank;
the cyclone sand washing module comprises a cyclone and a slurry pump, wherein the cyclone comprises a liquid inlet, an overflow end and an underflow end, the liquid inlet is connected with the slurry pump, and slurry in the transfer water tank is pumped into the cyclone by the slurry pump for classification after reaching a certain height;
the sand washing and dehydrating module comprises a dehydrating screen and a second flushing device, wherein a fine sand sieve plate is arranged in the dehydrating screen, a dehydrating collecting tank is arranged at the bottom of the dehydrating screen, the dehydrating collecting tank is communicated with a middle rotating water tank, and the second flushing device is arranged above the fine sand sieve plate.
Further, the feeding module comprises a heavy screen, a chain plate feeder, a feeding conveyor and an outer supporting frame, wherein the heavy screen is connected with the chain plate feeder, the feeding conveyor is connected with the screening mechanism and is used for conveying aggregate to the screening mechanism, and at least one section of the feeding conveyor is supported above the screening mechanism by the outer supporting frame.
Further, the screening mechanism is a triaxial elliptical screen, the washing screen module further comprises a material guiding device, and the material guiding device is connected with the discharge hole.
Furthermore, the slurry collecting tank is of a conical structure with four reduced sides, and a slurry outlet is arranged at the bottom of the slurry collecting tank and is communicated with the transit water tank.
Further, the water washing screen module further comprises a first frame body, the screening mechanism is supported at a high position by the first frame body frame, and an installation space for accommodating the feeding module is reserved at a low position.
Further, the transfer pulp feed module further comprises an automatic water supplementing device, the automatic water supplementing device comprises a liquid level detector, a water supplementing pipe and a water supplementing valve, the liquid level detector is used for detecting the liquid level in the transfer water tank, one end of the water supplementing pipe is connected with the overflow end of the cyclone, the other end of the water supplementing pipe is connected with the transfer water tank, and the water supplementing valve is arranged on the water supplementing pipe and is in signal connection with the liquid level detector.
Further, the cyclone sand washing die further comprises a second frame body, the second frame body supports the cyclone at the high position of the sand washing and dewatering module, and a space for accommodating the dewatering screen is reserved at the low position.
Further, the sand washing and dewatering module further comprises a third frame body, the third frame body supports the dewatering screen at a high position, and the second frame body is arranged on the third frame body.
The control method of the frame type efficient sand washing, dewatering and recycling system comprises the following specific steps of:
the feeding module screens out the overrun material in the aggregate and sends the screened aggregate to the screening mechanism;
the aggregate enters a screening mechanism and falls into a multi-layer screen of the screening mechanism, the first spraying device sprays the aggregate falling into the multi-layer screen at high pressure, the multi-layer screen screens out particles with different particle diameters, the particles smaller than the pore diameter of the bottom-layer screen, the sprayed water flow and the flushed mud are mixed into slurry, and the slurry is fallen into a slurry collecting tank;
after the slurry in the transfer water tank reaches a certain height, pumping the slurry into a cyclone by a slurry pump to carry out classification, wherein the slurry is separated into mud and sand in the cyclone, most of water and mud particles flow out through an overflow end at the top of the cyclone, and a cleaner sand material is poured into a fine sand screen plate of a dewatering screen at a underflow end of the cyclone;
the dewatering screen works, the second flushing device carries out secondary flushing on sand materials, clean aggregate with low water content is finally obtained after screening by the fine sand screen plate, and mixed slurry under the fine sand screen plate flows into the transfer water tank along a pipeline by dead weight after being collected by the dewatering collecting tank.
Further, when the liquid level of the middle water tank is lower than the set lowest level, the water supplementing valve is automatically opened, overflow water at the overflow end at the top of the cyclone flows into the middle water tank to be subjected to emergency temporary water supplementing, and when the liquid level of the middle water tank rises to be higher than the lowest liquid level, the water supplementing valve is closed again, and the overflow water at the top of the cyclone is normally discharged into a sewage pool.
According to the frame type efficient sand washing, dehydrating and recycling system, the whole line sand washing equipment, the water washing and sieving module and the sand washing and dehydrating module are respectively provided with a water washing process, fine sand recycling is carried out on slurry after vibration dehydration, the loss of fine sand is reduced, and the overall sand output is improved. The slurry collecting tank, the transit water tank and the dehydration collecting tank are designed in the invention, so that the washed slurry can be recycled, meanwhile, the design of the multi-channel water tank can ensure the uniformity of the feeding concentration of the follow-up cyclone sand washing module, and in addition, the transit slurry supplying module is internally provided with the automatic water supplementing device, so that the overflow trend of the cyclone can be controlled according to the liquid level in the transit water tank, and the temporary water supplementing effect can be achieved. The frame type efficient sand washing, dewatering and recycling system integrates screening, water washing, screening, slurry transferring, rotational flow sand washing, vibration dewatering and fine sand recycling, adopts a frame type structure to integrate a feeding module, a water washing and screening module, a transferring slurry supplying module, a rotational flow sand washing module and a sand washing and dewatering module into a frame, reduces the occupied area of equipment, can furthest reduce the field installation period and simplifies the hoisting difficulty of the equipment. The frame type efficient sand washing, dewatering and recycling system can be assembled and debugged in a factory in advance, so that complicated debugging stages during field installation are avoided, and debugging time is shortened.
Drawings
FIG. 1 is a schematic diagram of a frame-type efficient sand washing, dewatering and recycling system;
FIG. 2 is a schematic structural view of a feed module of a frame-type efficient sand washing, dewatering and recycling system;
FIG. 3 is a front view of a frame-type high efficiency sand washing, dewatering and recovery system;
fig. 4 is a schematic structural diagram of the frame-type efficient sand washing, dewatering and recycling system in operation.
In fig. 1: 1. the device comprises a feeding module, a water washing screen module, a transit slurry supply module, a rotational flow sand washing module, a sand washing dehydration module and a sand washing dehydration module, wherein the feeding module, the water washing screen module, the transit slurry supply module, the rotational flow sand washing module and the sand washing dehydration module are respectively arranged;
in fig. 2: 11. heavy screen, 12, chain plate feeder, 13, feeding conveyor;
in fig. 3-4: 13. the device comprises a feeding conveyor, 14, an outer supporting frame, 21, a triaxial elliptical screen, 211, a multilayer screen, 22, a first spraying device, 23, a first frame body, 212, a feeding hole, 213, a discharging hole, 214, a guiding device, 215, a slurry collecting tank, 216, a slurry outlet, 31, a transit water tank, 32, an automatic water supplementing device, 321, a liquid level detector, 322, a water supplementing pipe, 323, a water supplementing valve, 41, a cyclone, 42, a slurry pump, 43, a buffer tank, 44, a second frame body, 411, a liquid inlet, 412, an overflow end, 413, an underflow end, 51, a dewatering screen, 511, a fine sand screen plate, 512, a dewatering collecting tank, 52, a second flushing device, 53 and a third frame body.
Detailed Description
The invention is further described below by means of specific embodiments.
The frame type efficient sand washing, dewatering and recycling system shown by referring to fig. 1 to 4 comprises a feeding module 1, a water washing and screening module 2, a transit slurry supply module 3, a rotational flow sand washing module 4 and a sand washing and dewatering module 5.
The feeding module 1 comprises a heavy screen 11, a chain plate feeder 12, a feeding conveyor 13 and an outer supporting frame 14, wherein the heavy screen 11 is connected with the chain plate feeder 12, the heavy screen 11 screens out overrun materials in aggregate, undersize materials are conveyed to the feeding conveyor 13 through the chain plate feeder 12, the feeding conveyor 13 is connected with a feeding port of the triaxial elliptical screen 21 and is used for conveying aggregate to the triaxial elliptical screen 21, and at least one section of the feeding conveyor 13 is supported above the triaxial elliptical screen 21 by the outer supporting frame 14, so that the whole space occupation is reduced.
The washing sieve module 2 includes screening mechanism, first spray set 22, the first frame body 23 for triaxial elliptical screen 21, triaxial elliptical screen 21 includes multilayer screen cloth 211, feed inlet 212, discharge gate 213, guider 214, thick liquid collecting vat 215, one side of triaxial elliptical screen 21 is equipped with feed inlet 212, the opposite side is equipped with discharge gate 213, multilayer screen cloth 211 sets up in triaxial elliptical screen cloth 21 inside, guider 214 is connected with discharge gate 213, thick liquid collecting vat 215 sets up in triaxial elliptical screen cloth 21 bottom, the aggregate falls into multilayer screen cloth 211 through feed inlet 212, the granule of different particle diameters that multilayer screen cloth 211 will aggregate screen out mixes into the mud through guider 214, be less than the granule and the shower rivers of bottom screen cloth aperture and the mud that wash down fall into thick liquid collecting vat 215 together, thick liquid collecting vat 215 is the conical structure of four sides shrinkage mouth, thick liquid collecting vat 215 bottom is equipped with mud export 216 and transfer basin 31 intercommunication, first spray set up multilayer screen cloth 211 top, make high-pressure setting up to fall into multilayer screen cloth 211 and make the high-efficient separation of the high-pressure frame that falls into the triaxial screen cloth 21, the high-order to prevent that the high-efficient sand from setting up in the position of the three-axis elliptical screen cloth from setting up, the high-up the high-pressure place is kept down through the frame 23.
The transfer slurry supply module 3 comprises a transfer water tank 31 and an automatic water supplementing device 32, wherein the transfer water tank 31 is communicated with a slurry collecting tank 215 and is used for buffering slurry collected in the slurry collecting tank 215, an access door is arranged on the transfer water tank 31 to conveniently clean a deposit formed by natural sedimentation of muddy sand, meanwhile, emptying holes and gate valves are arranged on two sides of the transfer water tank 31 so as to completely empty water in the transfer water tank 31 when production is stopped, overflow ports are arranged on the corresponding transfer water tank 31 to prevent the condition that slurry overflows from the water tank to affect the field environment when the liquid exceeds the limit stored in the transfer water tank, the automatic water supplementing device 32 comprises a liquid level detector 321, a water supplementing pipe 322 and a water supplementing valve 323, the liquid level detector 321 is used for detecting the liquid level in the transfer water tank 31, one end of the water supplementing pipe 322 is connected with the overflow end 412 of the cyclone 41, the other end of the water supplementing valve 323 is connected with the transfer water tank 31, and the water supplementing valve 323 is arranged on the water supplementing pipe 322 and is in signal connection with the liquid level detector 321.
The slurry in the slurry collecting tank 215 is uniformly filled in the transfer water tank 31, so that the slurry concentration in the transfer water tank 31 reaches a relatively stable state, and the subsequent operation of the slurry pump 42 is facilitated.
When the feeding amount of the slurry at the front end is reduced and the liquid level of the middle transfer water tank 31 is lower than the set lowest level, the water supplementing valve 323 is automatically opened, overflow water at the overflow end 412 at the top of the cyclone 41 flows into the middle transfer water tank 31 along a pipeline to carry out emergency temporary water supplementing, damage caused by pumping air by a slurry pump is avoided, and when the liquid level of the middle transfer water tank 31 rises to be higher than the lowest liquid level after the fresh water is supplemented or the slurry at the front end is normal, the water supplementing valve 323 is closed again and the overflow water at the top of the cyclone 41 is normally discharged into a sewage pool.
The cyclone sand washing module 4 comprises a cyclone 41, a slurry pump 42, a buffer tank 43 and a second frame body 44, wherein the cyclone 41 comprises a liquid inlet 411, an overflow end 412 and an underflow end 413, the liquid inlet 411 is connected with the slurry pump 42, slurry in the transit water tank 31 reaches a certain height and is pumped into the cyclone 41 by the slurry pump 42 for classification, the slurry enters from the liquid inlet 411 of the cyclone 41, under the action of inlet pressure and gravity, a rotating state is shown in the cyclone 41, materials collide with water, materials and inner walls mutually in the rotating process, thereby realizing the action of separating mud and sand, most of water and mud particles flow out through the overflow end 412 at the top of the cyclone, the sewage flows into a sewage pool on site along a pipeline for subsequent sewage treatment, the underflow end of the cyclone 41 pours relatively clean sand into the buffer tank 43, the sand is poured into a fine sand 511 of a dewatering screen 51 after being buffered, the slurry pump 42 is connected with the transit water tank 31 for sending the slurry in the buffer tank 43 to the second frame body 41, and the slurry is kept at the high-pressure and the second frame body 41 for dewatering space of the cyclone 41.
The sand washing and dewatering module 5 comprises a dewatering screen 51, a second flushing device 52 and a third frame 53, wherein a fine sand screen plate 511 is arranged in the dewatering screen 51, a dewatering collecting tank 512 is arranged at the bottom of the dewatering screen 51, the dewatering collecting tank 512 is communicated with the transit water tank 31, the second flushing device 52 is arranged above the fine sand screen plate 511, the third frame 53 supports the dewatering screen 51 at a high position, the preferred third frame 53 is the same as the first frame 23 in height, and the second frame 44 is arranged on the third frame 53.
The dewatering screen 51 is operated the fine sand screen 511 inclines upwards by a certain angle, the angle design of the screen surface makes the aggregate stay area and time become large on the screen surface, the dewatering effect is promoted, the second flushing device 52 is used for flushing sand materials for the second time, the non-removed mud of the cyclone 41 is prevented from being mixed with sand again, clean aggregate with low water content is finally obtained after screening by the fine sand screen 511, most of components in the mixed slurry screened by the fine sand screen 511 are purer clear water, partial fine aggregate and a small amount of mud, the partial slurry is collected by the dewatering collection tank 512 and flows into the middle water diversion tank 31 along the pipeline by self weight, the residual fine sand is recovered, and meanwhile, the middle water diversion tank 31 is used for supplementing water.
According to the control method of the frame type efficient sand washing, dewatering and recycling system shown in fig. 1-4, the control method is as follows:
the heavy screen 11 of the feed module 1 screens out overrun in aggregate, and undersize is fed to the feed conveyor 13 by the link plate feeder 12, and the feed conveyor 13 conveys aggregate to the triaxial elliptical screen 21.
Aggregate enters the triaxial elliptical screen 21, falls into the multilayer screen 211 through the feed inlet 212, the first spraying device 22 sprays the aggregate falling into the multilayer screen 211 at high pressure, so that the silt can be effectively separated and dust can be prevented, the particles with different particle diameters, which are separated by the multilayer screen 211, are respectively sent out through the guide device 214, and the particles smaller than the aperture of the bottom screen, the spraying water flow and the flushed mud are mixed into slurry, and fall into the slurry collecting tank 215 together.
The slurry in the slurry collecting tank 215 is uniformly filled in the transfer water tank 31, so that the slurry concentration in the transfer water tank 31 reaches a relatively stable state, the follow-up slurry pump 42 can work conveniently, when the feeding amount of the slurry at the front end is reduced, the water supplementing valve 323 is automatically opened when the liquid level of the transfer water tank 31 is lower than the set minimum height, overflow water at the overflow end 412 at the top of the cyclone 41 flows into the transfer water tank 31 along a pipeline to carry out emergency temporary water supplementing, the damage caused by the pumping of the slurry pump into air is avoided, when the liquid level of the transfer water tank 31 rises to be higher than the minimum liquid level after the fresh water supplementing or the slurry at the front end is normal, the water supplementing valve 323 is closed again, and the overflow water at the top of the cyclone 41 is normally discharged into a sewage pool.
After the slurry in the transfer water tank 31 reaches a certain height, the slurry is pumped into the cyclone 41 by the slurry pump 42 for classification, the slurry enters from the liquid inlet 411 of the cyclone 41, a rotating state is shown in the cyclone 41 under the action of inlet pressure and gravity, materials collide with water flow, materials and inner walls mutually in the rotating process, thereby realizing the effect of separating mud from sand, most of water and mud particles flow out through the overflow end 412 at the top of the cyclone, the sewage flows into a sewage pool on site along a pipeline for subsequent sewage treatment, the underflow end of the cyclone 41 pours cleaner sand into the buffer box 43, and the sand is poured onto the fine sand sieve plate 511 of the dewatering sieve 51 after buffering.
The dewatering screen 51 is operated by the fine sand screen 511 being inclined upwards by a certain angle, the angle of the screen surface is designed to enlarge the stay area and time of the aggregate on the screen surface, the dewatering effect is promoted, the second flushing device 52 flushes the sand material for the second time, the mud which is not removed by the cyclone 41 is prevented from being mixed with the sand again, and the clean aggregate with low water content is finally obtained after screening by the fine sand screen 511.
Most of the components in the mixed slurry under the fine sand screen 511 are clean water, part of fine aggregate and a small amount of mud, and the part of slurry is collected by a dehydration collecting tank 512 and flows into the middle water diversion tank 31 by gravity along a pipeline to recycle the residual fine sand, and meanwhile, the middle water diversion tank 31 is supplemented with water.
The frame type efficient sand washing, dewatering and recycling system integrates the whole line sand washing equipment, integrates screening, water washing, screening, slurry transferring, cyclone sand washing, vibration dewatering and fine sand recycling, integrates the feeding module 1, the water washing, screening module 2, the transferring slurry supplying module 3, the cyclone sand washing module 4 and the sand washing and dewatering module 5 into a frame by adopting a frame type structure, reduces the occupied area of the equipment, can furthest reduce the field installation period, and simplifies the lifting difficulty of the equipment. The frame type efficient sand washing, dewatering and recycling system can be assembled and debugged in a factory in advance, so that complicated debugging stages during field installation are avoided, and debugging time is shortened. The frame type efficient sand washing, dewatering and recycling system adopts the water washing process in the water washing screen module 2 and the sand washing and dewatering module 5, and performs fine sand recycling on slurry after vibration dewatering, so that the loss of fine sand is reduced, and the overall sand output is improved. The slurry collecting tank 215, the transit water tank 31 and the dehydration collecting tank 512 are designed in the invention, so that the washed slurry can be recycled, meanwhile, the design of the multi-channel water tank can ensure the uniformity of the feeding concentration of the follow-up cyclone sand washing module 4, in addition, the transit slurry supplying module 3 is also internally provided with the automatic water supplementing device 32, and the overflow trend of the cyclone 41 can be controlled according to the liquid level in the transit water tank 31 so as to achieve the effect of temporary water supplementing.
The foregoing is merely a few specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modification of the present invention by using the concept should be construed as infringement of the protection scope of the present invention.
Claims (10)
1. Frame-type efficient sand washing dehydration recovery system, its characterized in that: comprises a feeding module, a water washing and screening module, a transit slurry supply module, a rotational flow sand washing module and a sand washing and dewatering module;
the feeding module is connected with the water washing screen module;
the water washing screen module comprises a screening mechanism, a first spraying device and a first frame body, wherein a feed inlet is formed in one side of the screening mechanism, a discharge outlet is formed in the other side of the screening mechanism, a multi-layer screen is arranged in the screening mechanism, a slurry collecting tank is arranged at the bottom of the screening mechanism, and the first spraying device is arranged above the multi-layer screen and is used for spraying aggregate falling onto the multi-layer screen at high pressure;
the transfer slurry supply module comprises a transfer water tank which is communicated with the slurry collecting tank and is used for buffering slurry collected in the slurry collecting tank;
the cyclone sand washing module comprises a cyclone and a slurry pump, wherein the cyclone comprises a liquid inlet, an overflow end and an underflow end, the liquid inlet is connected with the slurry pump, and slurry in the transfer water tank is pumped into the cyclone by the slurry pump for classification after reaching a certain height;
the sand washing and dehydrating module comprises a dehydrating screen and a second flushing device, a fine sand screen plate is arranged in the dehydrating screen, a dehydrating collecting tank is arranged at the bottom of the dehydrating screen, the dehydrating collecting tank is communicated with the middle rotating water tank, and the second flushing device is arranged above the fine sand screen plate.
2. The frame-type efficient sand washing, dewatering and recycling system according to claim 1, wherein: the feeding module comprises a heavy screen, a chain plate feeder, a feeding conveyor and an outer supporting frame, wherein the heavy screen is connected with the chain plate feeder, the feeding conveyor is connected with the screening mechanism and is used for conveying aggregate to the screening mechanism, and at least one section of the feeding conveyor is supported above the screening mechanism by the outer supporting frame.
3. The frame-type efficient sand washing, dewatering and recycling system according to claim 1, wherein: the screening mechanism is a triaxial elliptical screen, the washing screen module further comprises a material guiding device, and the material guiding device is connected with the discharge hole.
4. The frame-type efficient sand washing, dewatering and recycling system according to claim 1, wherein: the slurry collecting tank is of a conical structure with four shrinkage openings, and a slurry outlet is arranged at the bottom of the slurry collecting tank and is communicated with the transit water tank.
5. The frame-type efficient sand washing, dewatering and recycling system according to claim 1, wherein: the washing screen module further comprises a first frame body, the screening mechanism is supported at a high position by the first frame body frame, and an installation space for accommodating the feeding module is reserved at a low position.
6. The frame-type efficient sand washing, dewatering and recycling system according to claim 1, wherein: the transfer pulp feed module further comprises an automatic water supplementing device, the automatic water supplementing device comprises a liquid level detector, a water supplementing pipe and a water supplementing valve, the liquid level detector is used for detecting the liquid level in the transfer water tank, one end of the water supplementing pipe is connected with the overflow end of the cyclone, the other end of the water supplementing pipe is connected with the transfer water tank, and the water supplementing valve is arranged on the water supplementing pipe and is in signal connection with the liquid level detector.
7. The frame-type efficient sand washing, dewatering and recycling system according to claim 1, wherein: the cyclone sand washing module further comprises a second frame body, the second frame body supports the cyclone at the high position of the sand washing and dewatering module, and a space for accommodating the dewatering screen is reserved at the low position.
8. The frame-type efficient sand washing, dewatering and recycling system according to claim 7, wherein: the sand washing and dewatering module further comprises a third frame body, the third frame body supports the dewatering screen at a high position, and the second frame body is arranged on the third frame body.
9. A control method of a frame type efficient sand washing, dewatering and recycling system, which uses the efficient sand washing, dewatering and recycling system according to any one of claims 1-8, and comprises the following specific steps:
the feeding module screens out the overrun material in the aggregate and sends the screened aggregate to the screening mechanism;
the aggregate enters a screening mechanism and falls into a multi-layer screen of the screening mechanism, the first spraying device sprays the aggregate falling into the multi-layer screen at high pressure, the multi-layer screen screens out particles with different particle diameters, the particles smaller than the pore diameter of the bottom-layer screen, the sprayed water flow and the flushed mud are mixed into slurry, and the slurry is fallen into a slurry collecting tank;
after the slurry in the transfer water tank reaches a certain height, pumping the slurry into a cyclone by a slurry pump to carry out classification, wherein the slurry is separated into mud and sand in the cyclone, most of water and mud particles flow out through an overflow end at the top of the cyclone, and a cleaner sand material is poured into a fine sand screen plate of a dewatering screen at a underflow end of the cyclone;
the dewatering screen works, the second flushing device carries out secondary flushing on sand materials, clean aggregate with low water content is finally obtained after screening by the fine sand screen plate, and mixed slurry under the fine sand screen plate flows into the transfer water tank along a pipeline by dead weight after being collected by the dewatering collecting tank.
10. The control method of the frame-type efficient sand washing, dewatering and recycling system according to claim 9, wherein when the liquid level of the intermediate water tank is lower than the set minimum height, the water supplementing valve is automatically opened, overflow water at the overflow end of the top of the cyclone flows into the intermediate water tank to carry out emergency temporary water supplementing, when the liquid level of the intermediate water tank is raised to be higher than the minimum liquid level, the water supplementing valve is closed again, and the overflow water at the top of the cyclone is normally discharged into the sewage tank.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437835A (en) * | 2014-11-21 | 2015-03-25 | 福建南方路面机械有限公司 | Sand washer and sand washing method |
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| CN116371078A (en) * | 2023-05-19 | 2023-07-04 | 福建南方路面机械股份有限公司 | Modular building residue soil sand recycling production line and application method thereof |
| CN219356579U (en) * | 2023-02-10 | 2023-07-18 | 福建南方路面机械股份有限公司 | Modular water-washed sand apparatus for producing |
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2024
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| CN104437835A (en) * | 2014-11-21 | 2015-03-25 | 福建南方路面机械有限公司 | Sand washer and sand washing method |
| CN204380842U (en) * | 2014-11-21 | 2015-06-10 | 福建南方路面机械有限公司 | A kind of washed-out sand fine sand reclaims dehydrating integrated machine |
| CN209333950U (en) * | 2018-12-17 | 2019-09-03 | 徐州格雷安环保设备有限公司 | The second-order separation mud desanding cleaning equipment |
| CN210097932U (en) * | 2019-06-03 | 2020-02-21 | 福建福闽榕环保科技有限公司 | Machine is retrieved to vibrations formula fine sand |
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| CN213349222U (en) * | 2020-09-24 | 2021-06-04 | 鲁班重工(山东)有限公司 | Exempt from basic type and wash system sand all-in-one |
| CN219356579U (en) * | 2023-02-10 | 2023-07-18 | 福建南方路面机械股份有限公司 | Modular water-washed sand apparatus for producing |
| CN116371078A (en) * | 2023-05-19 | 2023-07-04 | 福建南方路面机械股份有限公司 | Modular building residue soil sand recycling production line and application method thereof |
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