CN112024357A - Polluted recycled aggregate treatment system and method - Google Patents
Polluted recycled aggregate treatment system and method Download PDFInfo
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- CN112024357A CN112024357A CN202010694757.0A CN202010694757A CN112024357A CN 112024357 A CN112024357 A CN 112024357A CN 202010694757 A CN202010694757 A CN 202010694757A CN 112024357 A CN112024357 A CN 112024357A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000004576 sand Substances 0.000 claims abstract description 191
- 239000004575 stone Substances 0.000 claims abstract description 168
- 238000000926 separation method Methods 0.000 claims abstract description 35
- 238000012216 screening Methods 0.000 claims abstract description 13
- 238000005201 scrubbing Methods 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims description 65
- 238000003756 stirring Methods 0.000 claims description 61
- 238000005406 washing Methods 0.000 claims description 32
- 239000007788 liquid Substances 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 6
- 230000000717 retained effect Effects 0.000 claims description 4
- 238000007873 sieving Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 11
- 239000003344 environmental pollutant Substances 0.000 description 14
- 231100000719 pollutant Toxicity 0.000 description 14
- 238000005507 spraying Methods 0.000 description 7
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 7
- 230000005484 gravity Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000013475 authorization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011012 sanitization Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Images
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
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/06—Cleaning involving contact with liquid using perforated drums in which the article or material is placed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
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- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention relates to a system and a method for treating polluted recycled aggregate, which comprises a crawler-type collecting vehicle and a sand and stone rubbing machine, and also comprises a primary vibration separating screen and a secondary vibration separating screen which are used for screening sand and stones, wherein the discharge port of the crawler-type collecting vehicle is connected with the feed port of the primary vibration separating screen, and the discharge port of the primary vibration separating screen is connected with the feed port of the sand and stone rubbing machine; the feed inlet of the secondary vibration separating screen is connected with the discharge outlet of the sand and stone scrubbing machine; the sand rubbing machine is provided with two sand rubbing machines, one sand rubbing machine is used for receiving sand led out from the discharge port of the primary vibrating separating screen, and the other sand rubbing machine is used for receiving stones led out from the discharge port of the primary vibrating separating screen. The sand and stone separation device has the effects of separating sand and stones fished in a river channel and facilitating subsequent treatment of the sand and the stones respectively.
Description
Technical Field
The invention relates to the technical field of polluted sandstone treatment, in particular to a system and a method for treating polluted recycled aggregate.
Background
With the development of our society, the importance of environmental protection has been gradually recognized by governments and people, some mountain villages have been established as tourist vacation areas after years of treatment, the sewage flowing into the river channel is also cut off, but the water body in the river bed is still not clear, one of the important reasons is that pebbles and sands in the river channel are polluted (pebbles and sands are aggregates), the pollutants cover the pebbles and the sands, some polluted and even discolored, and to recover the ecological environment as soon as possible, the pebbles and the sands in the brook are necessary to be cleaned to recover the original appearance.
A device for treating polluted gravel is disclosed in a Chinese patent with an authorization publication number of CN105798053 in the prior art, and comprises a crawler-type gravel collecting vehicle, wherein a gravel collecting head and a chain plate conveyor are installed on the crawler-type gravel collecting vehicle, an outlet of the gravel collecting head is connected with an inlet of the chain plate conveyor, an outlet of the chain plate conveyor is connected with an inlet of a gravel stirring machine, an outlet of the gravel stirring machine is communicated with an inlet of a first-stage gravity pollutant separator, an outlet of the first-stage gravity pollutant separator is connected with an inlet of a gravel cleaning machine, an outlet of the gravel cleaning machine is connected with an inlet of a second-stage gravity pollutant separator, an outlet of the second-stage gravity pollutant separator is connected with an inlet of a gravel rinsing machine, and an outlet of the gravel rinsing machine is connected with an inlet of a gravel bin.
When the device works, sand and stones are firstly fished up by the crawler-type gravel collecting vehicle from the river channel, then enter the gravel stirring machine in a sand-stone mixed state to be stirred by stirring, and then sequentially pass through the first-stage gravity pollutant separator, the gravel cleaning machine, the second-stage gravity pollutant separator, the gravel rinsing machine and the gravel bin to be cleaned, and finally are discharged into the river channel again.
The above prior art solutions have the following drawbacks: after sand and stone enter the sand and stone stirring machine in a mixed state, the sand and stone are rubbed to rub down pollutants on the surface, because the sand and stone fished up from the river channel are all in a polluted state, a large amount of pollutants are attached to the surface of the sand and stone, the pollutants are transferred to another polluted object from one polluted object only by rubbing each other, the amount of the pollutants on the unit area of the surfaces of the sand and the stone is not easy to reduce, the effect of removing the pollutants in the process is poor, so that the follow-up process needs to bear the heavier task of removing the pollutants, the whole pollutant removal work is not facilitated, and the improvement is achieved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a pollution regeneration aggregate treatment system which has the effects of separating sand and stones fished in a river channel and conveniently and respectively treating the sand and the stones subsequently.
The above object of the present invention is achieved by the following technical solutions:
a pollution regeneration aggregate treatment system comprises a crawler-type collecting vehicle and a sand and stone rubbing machine, and further comprises a primary vibration separating screen and a secondary vibration separating screen which are used for screening sand and stones, wherein a discharge port of the crawler-type collecting vehicle is connected with a feeding port of the primary vibration separating screen, and a discharge port of the primary vibration separating screen is connected with a feeding port of the sand and stone rubbing machine; the feed inlet of the secondary vibration separating screen is connected with the discharge outlet of the sand and stone scrubbing machine; the sand rubbing machine is provided with two sand rubbing machines, one sand rubbing machine is used for receiving sand led out from the discharge port of the primary vibrating separating screen, and the other sand rubbing machine is used for receiving stones led out from the discharge port of the primary vibrating separating screen.
Through adopting above-mentioned technical scheme, the setting of one-level vibration separating screen and second grade vibration separating screen conveniently separates the grit mixture to make things convenient for sand and stone separately to handle, help promoting the treatment effect to sand and stone.
The invention may further be configured in a preferred example, further comprising a dirt separation device, wherein a feed inlet of the dirt separation device is connected with a discharge outlet of the secondary vibrating screen, and the dirt separation device is used for receiving sand or stones separated from the secondary vibrating screen and separating dirt on the surface of the sand or stones.
Through adopting above-mentioned technical scheme, filth separator's setting for sand and the surperficial filth of stone can be by the sanitization, reach the purpose of grit in the clean river course.
The invention may in a preferred example be further configured such that the dirt separation means comprises: the sand or stone cleaning device comprises a cleaning pool, a support, a reticular roller, a first driving piece and a lifting assembly, wherein the cleaning pool is used for containing cleaning liquid for cleaning sand or stones; the bracket is arranged right above the cleaning pool; the reticular roller is movably arranged on the bracket and is used for containing the washed stones or sand; the first driving piece is vertically arranged on the bracket in a sliding manner and is used for driving the mesh-shaped roller to rotate around the axis of the mesh-shaped roller; the lifting assembly is arranged on the support and is used for driving the reticular roller and the first driving piece to move up and down so that the reticular roller is in contact with the cleaning liquid in the cleaning pool.
By adopting the technical scheme, the cleaning pool is convenient for placing cleaning liquid required during cleaning; the support is arranged to provide mounting positions for the mesh roller, the first driving piece and the lifting assembly, so that the mesh roller, the first driving piece and the lifting assembly can play a role conveniently; the mesh-shaped roller can be used for intensively containing sand or stones for cleaning, the sand or stones can be conveniently fished out of the cleaning liquid after cleaning, and the sand or stones can be turned over when being cleaned by combining the first driving part, so that the cleaning effect is improved; the setting of lifting unit for sand or stone can break away from the contact with the washing liquid after wasing, just also difficult appearance appears because liquid flows through sand or stone and the condition of remaining filth on sand or stone surface appears when discharging the washing liquid this moment, helps reducing the filth on sand or stone surface, promotes the cleaning performance to sand and stone.
The invention can be further configured in a preferred example that the lifting assembly comprises a second driving member and a connecting block, the second driving member is fixedly arranged on the bracket and is used for driving the connecting block to move up and down; the connecting block is arranged on the second driving piece and is used for connecting the second driving piece and the mesh roller.
By adopting the technical scheme, the arrangement of the second driving piece provides power for the ascending and descending of the reticular roller, and the reticular roller is facilitated to contact with and separate from the cleaning liquid; the setting of connecting block conveniently couples together second driving piece and netted cylinder, makes things convenient for the power of second driving piece to use on netted cylinder.
The invention may in a preferred example be further configured such that the frame is further provided with a plurality of water jets for washing sand or stones in the mesh drum.
Through adopting above-mentioned technical scheme, the setting of water spray spare for sand or stone in the netted cylinder can wash at once after finishing washing, reach the purpose that further clearance sand or stone brought the filth from the washing liquid on the one hand, on the other hand sets up the water spray spare in the top of washing the pond, still does not need the staff to carry sand or stone to other places and go the rinsing, has also reduced the occupation in place and the preparation of instrument when rinsing when having saved the operation action.
The invention can be further configured in a preferred example that the inside of the reticular roller is provided with a stirring piece for stirring the sand or the stones, and the stirring piece is provided with a third driving piece for driving the stirring piece to rotate.
Through adopting above-mentioned technical scheme, the setting of stirring piece and third driving piece has played further purpose to sand or stone stirring in the netted cylinder for sand or stone in the netted cylinder can be fast abundant contact cleaning liquid more, promote abluent efficiency and effect.
The invention can be further configured in a preferred example that the stirring piece comprises a stirring shaft and a stirring rod, and two ends of the stirring shaft are respectively and rotatably connected with two ends of the reticular roller; the puddler is provided with many, and many puddlers evenly set up on the axle side surface of (mixing) shaft to the length direction of puddler is perpendicular with the axis direction of (mixing) shaft.
By adopting the technical scheme, the arrangement of the stirring shaft provides an installation position for the stirring rod, and meanwhile, the third driving piece is convenient to drive the stirring rod to rotate; the setting of puddler has increased the area of stirring, has promoted the effect of stirring sand or stone.
The invention also aims to provide a method for treating the polluted recycled aggregate, which can disperse the dirt on the sand and the stone, reduce the amount of the dirt on the unit area of the sand and the stone and help to reduce the cleaning pressure of the subsequent process.
The second aim of the invention is realized by the following technical scheme:
a method for treating contaminated recycled aggregate, comprising:
s1, scooping up the sand and stone mixture in the river channel through a crawler-type collecting vehicle, and conveying the sand and stone mixture to a primary vibration separation sieve;
s2, screening the sand-stone mixture into sand and stones by the primary vibration separation screen, and respectively conveying the screened sand and stones into two sand-stone rubbing machines;
s3, adding clean stones into the sand rubbing machine containing the sand fished out of the river channel, and adding clean sand into the sand rubbing machine containing the sand fished out of the river channel;
s4, conveying the rubbed gravel mixture in the two gravel rubbing machines into the two secondary vibrating separation sieves respectively;
s5, screening sand and stones fished out of the river channel by the two secondary vibration screening sieves respectively, and conveying the sand and stones into the two dirt separating devices respectively;
s6, removing the dirt on the surfaces of sand and stones respectively by using the two dirt separating devices;
and S7, taking out the sand and the stones cleaned in the dirt separation device, and throwing the sand and the stones back to the river channel again. Through adopting above-mentioned technical scheme, add clean stone in rubbing the washing machine with the grit to the sand stone that has placed the sand of dragging for from the river course, rub the washing machine with the grit to the sand stone that has placed the stone of dragging for from the river course in and add clean sand, make sand or the filth on the stone surface of fishing for in the river course can be dispersed, thereby reach the purpose of the volume of filth on the sand or the stone surface unit area of dragging for in the reduction follow river course, just also can be easier some when handling sand or the stone of dragging for in the river course afterwards, help promoting the effect and the efficiency that the filth was handled.
The present invention in a preferred example may be further configured that a portion of the sand and stones should be retained in step S7 to be added to the sand washer as clean sand and stones for the next cleaning.
Through adopting above-mentioned technical scheme, hold back partly sand or stone and can realize having reduced the waste of resource to the reuse of sand or stone, need not go in addition again and prepare sand and stone.
The present invention may be further configured in a preferred example that the sand screened in step S5 and added later is mixed with the sand fished out from the river and added together into the dirt-separating device; the stones screened out in step S5 and added later are mixed with the stones fished out of the river and added together to the dirt separator.
Through adopting above-mentioned technical scheme for sand and stone that the back added into also can be handled totally, the waste of difficult production grit.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the primary vibrating separating screen and the secondary vibrating separating screen can separate sand and stones, so that the sand and stones can be conveniently and respectively treated in the follow-up process; the operation of adding clean sand and stones disperses the sand fished out of the river channel and the dirt on the surface of the stones, so that the amount of the dirt on the surface unit area of the sand and the stones is reduced, and the subsequent dirt cleaning is easier and more efficient;
2. the setting of lifting unit for sand or stone can break away from the contact with the washing liquid after wasing, just also difficult appearance appears because liquid flows through sand or stone and the condition of remaining filth on sand or stone surface appears when discharging the washing liquid this moment, helps reducing the filth on sand or stone surface, promotes the cleaning performance to sand and stone.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view showing the construction of the dirt separator of the present invention.
FIG. 3 is a schematic view of the structure of the stirring member of the present invention.
In the figure, 1, a crawler-type collecting vehicle; 2. a sand scrubbing machine; 3. a first-stage vibration separating screen; 4. secondary vibration separating screen; 5. a dirt separation device; 51. a cleaning tank; 52. a support; 53. a mesh drum; 54. a first driving member; 55. a lifting assembly; 551. a second driving member; 552. connecting blocks; 6. a stirring member; 61. a stirring shaft; 62. a stirring rod; 7. a third driving member; 8. a water spraying member; 81. a sprinkler head; 82. a water conduit; 83. and (4) a water pump.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the present invention discloses a system for treating contaminated recycled aggregate, comprising: the device comprises a crawler-type collecting vehicle 1, a sand and stone scrubbing machine 2, a dirt separating device 5, a primary vibrating separating screen 3 and a secondary vibrating separating screen 4, wherein the primary vibrating separating screen 3 and the secondary vibrating separating screen 3 are used for screening sand and stones, the crawler-type collecting vehicle 1 and the primary vibrating separating screen 3 are respectively provided with one machine, a discharge port of the crawler-type collecting vehicle 1 is connected with a feeding port of the primary vibrating separating screen 3, and a discharge port of the primary vibrating separating screen 3 is connected with a feeding port of the sand and stone scrubbing machine 2; the sand and stone rubbing and washing machine 2 is provided with two sand and stone rubbing and washing machines, one sand and stone rubbing and washing machine 2 is used for receiving sand led out from the discharge port of the first-stage vibration separation sieve 3, and the other sand and stone rubbing and washing machine 2 is used for receiving stones led out from the discharge port of the first-stage vibration separation sieve 3; the two secondary vibrating separating sieves 4 are also provided, the feeding port of one secondary vibrating separating sieve 4 is connected with the discharging port of one sand rubbing and washing machine 2, and the feeding port of the other secondary vibrating separating sieve 4 is connected with the discharging port of the other sand rubbing and washing machine 2; the pan feeding mouth of filth separator 5 is connected with the discharge gate of second grade vibration separating screen 4, and filth separator 5 is arranged in receiving the sand or the stone that separate out in second grade vibration separating screen 4 and for fishing out from the river course to separate out the filth on sand or stone surface, and filth separator 5 is provided with two, and one is used for receiving the sand that the discharge gate department of second grade vibration separating screen 4 derived, and another is used for receiving the stone that the discharge gate department of second grade vibration separating screen 4 derived.
The crawler-type collecting vehicle 1 and the sand rubbing and washing machine 2 are described in detail in a chinese patent with an authorization publication number of CN105798053, and the crawler-type collecting vehicle 1 and the sand rubbing and washing machine 2 in this embodiment are not different from the crawler-type collecting vehicle 1 and the sand rubbing and washing machine 2 mentioned in this patent, and thus are not described in detail in this embodiment.
Referring to fig. 2, the dirt separation device 5 includes: the sand cleaning device comprises a cleaning pool 51, a support 52, a net-shaped roller 53, a first driving piece 54 and a lifting assembly 55, wherein the cleaning pool 51 is in a cuboid shape and is made of concrete, and the cleaning pool 51 is used for containing cleaning liquid for cleaning sand or stones; the support 52 is arranged right above the cleaning pool 51, the support 52 comprises two vertical parallel support plates, the lower ends of the support plates are pre-embedded at the pool opening of the cleaning pool 51, and the two support plates are symmetrical relative to the cleaning pool 51; two opposite side surfaces of the two supporting plates are respectively provided with a vertical long hole with a waist-round cross section.
Referring to fig. 2 and 3, the mesh-shaped roller 53 is made of corrosion-resistant stainless steel, the diameter of meshes on the mesh-shaped roller 53 is smaller than that of sand or stones, the mesh-shaped roller 53 is movably arranged on the bracket 52 and used for containing washed stones or sands, an opening for feeding and discharging is arranged on the shaft side surface of the mesh-shaped roller 53, a cover plate is hinged to the opening, and one end, far away from the hinged part, of the cover plate is bound and fixed through an iron wire; the reticular cylinder 53 is welded with a connecting pipe at the end parts of two ends vertical to the axis of the cylinder, the connecting pipe is in a round pipe shape and is made of corrosion-resistant stainless steel, two ends of the two connecting rods penetrate through the two vertical long holes respectively, and the axes of the two connecting pipes coincide with the axis of the reticular cylinder 53.
Referring to fig. 2 and 3, the first driving member 54 is a motor, the first driving member 54 is vertically slidably disposed on the bracket 52 and is used for driving the mesh roller 53 to rotate around its axis, the axis of the output shaft of the first driving member 54 coincides with the axis of the connecting pipe, and the output shaft of the first driving member 54 is connected with the connecting pipe through a stainless steel coupling.
Referring to fig. 2 and 3, a stirring member 6 for stirring sand or stones is further disposed inside the mesh-shaped drum 53, a third driving member 7 for driving the stirring member 6 to rotate is disposed on the stirring member 6, and the third driving member 7 is a motor; the arrangement of the stirring piece 6 and the third driving piece 7 enables the sand and stone inside the mesh-shaped roller 53 to be further stirred, so that the sand and stone can be sufficiently contacted with the cleaning liquid in the cleaning pool 51, and the cleaning effect of the cleaning liquid is further improved.
Referring to fig. 3, the stirring member 6 includes a stirring shaft 61 and a stirring rod 62, the stirring shaft 61 is made of corrosion-resistant stainless steel, two ends of the stirring shaft 61 respectively penetrate through the mesh-shaped drum 53 and are rotatably connected with the mesh-shaped drum 53, two ends of the stirring shaft 61 respectively penetrate through two connecting pipes after penetrating through the mesh-shaped drum 53, the stirring shaft 61 is rotatably connected with the connecting pipes through bearings, and the stirring shaft 61, the mesh-shaped drum 53 and the connecting pipes are coaxially arranged; the stirring rods 62 are cylindrical and made of corrosion-resistant stainless steel, the stirring rods 62 are provided with a plurality of stirring rods 62, the stirring rods 62 are uniformly welded on the shaft side surface of the stirring shaft 61, and the length direction of the stirring rods 62 is perpendicular to the axial direction of the stirring shaft 61.
Referring to fig. 3, the output shaft of the third driving member 7 is fixedly connected to one end of the stirring shaft 61 far from the first driving member 54 through a stainless steel coupler, so that the third driving member 7 can drive the stirring shaft 61 to rotate around its own axis.
Referring to fig. 2 and 3, the lifting assembly 55 is disposed on the bracket 52 and is used for driving the mesh-shaped roller 53 and the first driving member 54 to move up and down to make the mesh-shaped roller 53 contact the cleaning liquid in the cleaning pool 51, so as to clean the sand in the mesh-shaped roller 53 and simultaneously pull up the mesh-shaped roller 53 from the cleaning pool 51 after cleaning is completed, so that the sand in the mesh-shaped roller 53 can be separated from the cleaning liquid, and in this design, when the cleaning liquid is discharged from the cleaning pool 51, the dirt cleaned in the cleaning liquid is not easy to remain on the surface of the sand due to the liquid flowing through the sand during liquid discharge, thereby effectively reducing the amount of dirt remaining on the surface of the sand, reducing the burden of cleaning the dirt in the subsequent process, and being beneficial to improving the effect and efficiency of cleaning the dirt.
Referring to fig. 2 and 3, two sets of lifting assemblies 55 are provided, one set of lifting assemblies 55 is located above the second driving member 551, and the other set of lifting assemblies 55 is located above the third driving member 7; the lifting assembly 55 comprises a second driving part 551 and a connecting block 552, the second driving part 551 is an air cylinder, the second driving part 551 is fixed on the bracket 52 through a bolt and is used for driving the connecting block 552 to move up and down, the bracket 52 further comprises a transverse plate, the transverse plate is horizontally arranged above the cleaning pool 51, two ends of the transverse plate are respectively fixedly connected with the upper ends of the two supporting plates through screws, two ends of the transverse plate respectively exceed one section of the corresponding supporting plate, the second driving part 551 is fixed at the position where the transverse plate exceeds the supporting plates through a bolt, and a piston rod of the second driving part 551 vertically extends or retracts downwards; connecting block 552 is the cuboid shape and is stainless steel material, the piston rod is kept away from cylinder body one end weld on connecting block 552 one end that is in first driving piece 54 top and the second driving piece 551 that corresponds, this connecting block 552 other end passes through screw fixed connection with first driving piece 54 upside surface, the piston rod is kept away from cylinder body one end weld on connecting block 552 one end that is in third driving piece 7 top and the second driving piece 551 that corresponds, this connecting block 552 other end passes through screw fixed connection with third driving piece 7 upside surface.
Referring to fig. 2, when the piston rod of the second driving member 551 extends and retracts up and down, the mesh roller 53 may be pulled up and down by the connecting block 552, so that the lower surface of the mesh roller 53 may contact or be separated from the cleaning solution.
Referring to fig. 2, in order to wash the washed sand and stone in time, a plurality of water spraying members 8 for washing the sand or stone in the mesh drum 53 are further provided on the horizontal plate of the bracket 52, and the water spraying members 8 include: the water sprayer comprises a water spraying head 81, a water guide pipe 82 and a water pump 83, wherein one end of the water spraying head 81 is aligned with the axial side surface of the reticular roller 53, the other end of the water spraying head 81 is communicated with one end of the water guide pipe 82, the other end of the water guide pipe 82 is communicated with the water pump 83, the water pump 83 is connected with a water tank, water in the water tank is pressurized by the water pump 83 and then is sprayed out from the water spraying head 81 along the water guide pipe 82 to be sprayed onto the reticular roller 53, and sand in the reticular.
Compared with the mode of taking the gravels out of the mesh-shaped roller 53 and then rinsing the gravels, the mode saves a step of taking the gravels out of the mesh-shaped roller 53, saves the operation action, does not need to specially arrange a rinsing pool, and reduces the use of resources and the occupation of space.
Referring to fig. 1 and 2, the following is a method for treating contaminated recycled aggregate, comprising:
s1, scooping up the sand-stone mixture in the river channel through a crawler-type collecting vehicle 1, and conveying the sand-stone mixture into a primary vibration separating screen 3;
s2, screening the sand-stone mixture into sand and stones by the primary vibration separation screen 3, and respectively conveying the screened sand and stones into the two sand-stone rubbing and washing machines 2;
s3, adding clean stones into the sand rubbing and washing machine 2 containing the sand fished out from the river channel, and adding clean sand into the sand rubbing and washing machine 2 containing the sand fished out from the river channel;
s4, conveying the sand-stone mixture scrubbed in the two sand-stone scrubbing machines 2 into the two secondary vibrating separating sieves 4 respectively;
s5, screening sand and stones fished out of the river channel by the two secondary vibration separation sieves 4 respectively, and conveying the sand and stones into the two dirt separation devices 5 respectively;
s51, mixing the sand separated from the secondary vibration separation screen 4 and added later with the sand separated from the secondary vibration separation screen 4 and fished out from the river channel, and adding the sand and the sand into one dirt separation device 5, and simultaneously mixing the stones separated from the secondary vibration separation screen 4 and added later with the stones separated from the secondary vibration separation screen 4 and fished out from the river channel, and adding the stones and the stones into the other dirt separation device 5;
s6, removing the dirt on the surfaces of the sand and the stone by the two dirt separating devices 5 respectively;
s61, after the sand or the stones in the mesh-shaped roller 53 are filled, firstly, starting the second driving part 551 to enable the lower surface of the side of the mesh-shaped roller shaft 53 to be downwards immersed into the cleaning liquid in the cleaning pool 51, meanwhile, driving the mesh-shaped roller 53 to rotate around the axis of the mesh-shaped roller 53 by the first driving part 54, and driving the stirring part 6 to rotate by the third driving part 7 to enable the sand or the stones in the mesh-shaped roller 53 to be more completely cleaned, after the cleaning is finished, pulling up the mesh-shaped roller 53 to enable the lower surface of the side of the lower shaft of the mesh-shaped roller 53 to be separated from the cleaning liquid, and then, washing the sand or the stones in the mesh-shaped roller;
s7, taking out the sand and the stones cleaned in the dirt separation device 5, and throwing the sand and the stones back to the river channel again;
s71, a part of the cleaned sand and stones should be retained to be added into the sand rubbing machine 2 as clean sand and stones next time.
Clean stones are added into the sands screened by the first-stage vibration screening sieve 3, clean sands are added into the stones screened by the first-stage vibration screening sieve 3, so that the added clean stones and the added clean sand can rub the sand fished in the river channel and the dirt on the surface of the stones, thereby facilitating the subsequent cleaning of the dirt, but also can stick a part of the dirt on the surfaces of the sand and the stones fished in the river channel to be dispersed to the surfaces of the newly added sand and stones, so that the aim of reducing the amount of the dirt on the surfaces and the unit area of the sand and the stones in the river channel can be fulfilled, so that the dirt on the surface of the sand and the stones can be more easily cleaned in the subsequent treatment, and the efficiency of the dirt disposal will naturally be higher, since the disposal is easier.
The cleaned sand and stones are partially retained, so that the sand and stones can be recycled, the workers do not need to prepare clean sand and stones in subsequent work, and the resources are recycled.
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 (10)
1. A polluted recycled aggregate treatment system comprises a crawler-type collection vehicle (1) and a sand and stone scrubbing machine (2), and is characterized by further comprising a primary vibration separation sieve (3) and a secondary vibration separation sieve (4) which are used for sieving sand and stones, wherein a discharge port of the crawler-type collection vehicle (1) is connected with a feed port of the primary vibration separation sieve (3), and a discharge port of the primary vibration separation sieve (3) is connected with a feed port of the sand and stone scrubbing machine (2); a feed inlet of the secondary vibration separating screen (4) is connected with a discharge outlet of the sand rubbing machine (2); the sand rubbing and washing machine (2) is provided with two sand rubbing and washing machines, one sand rubbing and washing machine (2) is used for receiving sand led out from the discharge port of the first-stage vibrating separating screen (3), and the other sand rubbing and washing machine (2) is used for receiving stones led out from the discharge port of the first-stage vibrating separating screen (3).
2. The system for treating the polluted recycled aggregate according to claim 1, further comprising a dirt separation device (5), wherein a feeding port of the dirt separation device (5) is connected with a discharging port of the secondary vibrating screen (4), and the dirt separation device (5) is used for receiving sand or stones separated from the secondary vibrating screen (4) and separating dirt on the surface of the sand or stones.
3. The contaminated recycled aggregate treatment system according to claim 2, wherein the dirt separation device (5) comprises: the sand or stone cleaning device comprises a cleaning pool (51), a support (52), a mesh-shaped roller (53), a first driving piece (54) and a lifting assembly (55), wherein the cleaning pool (51) is used for containing cleaning liquid for cleaning sand or stones; the bracket (52) is arranged right above the cleaning pool (51); the reticular roller (53) is movably arranged on the bracket (52) and is used for containing the washed stones or sand; the first driving piece (54) is vertically arranged on the bracket (52) in a sliding manner and is used for driving the mesh roller (53) to rotate around the axis of the mesh roller; the lifting assembly (55) is arranged on the bracket (52) and is used for driving the mesh-shaped roller (53) and the first driving piece (54) to move up and down so that the mesh-shaped roller (53) contacts the cleaning liquid in the cleaning pool (51).
4. The contaminated recycled aggregate treatment system according to claim 3, wherein the lifting assembly (55) comprises a second driving member (551) and a connecting block (552), the second driving member (551) is fixedly arranged on the bracket (52) and is used for driving the connecting block (552) to move up and down; a connecting block (552) is disposed on the second driving member (551) and is used for connecting the second driving member (551) and the mesh drum (53).
5. A contaminated recycled aggregate treatment system according to claim 3, wherein said support (52) is further provided with a plurality of water jets (8) for washing sand or stones in said reticular drum (53).
6. The system for treating the contaminated recycled aggregate according to claim 3, wherein the inside of the mesh drum (53) is provided with a stirring member (6) for stirring the sand or the stone, and the stirring member (6) is provided with a third driving member (7) for driving the stirring member (6) to rotate.
7. The contaminated recycled aggregate treatment system according to claim 6, wherein the stirring member (6) comprises a stirring shaft (61) and a stirring rod (62), and two ends of the stirring shaft (61) are respectively and rotatably connected with two ends of the mesh drum (53); the stirring rods (62) are provided with a plurality of stirring rods (62), the stirring rods (62) are uniformly arranged on the shaft side surface of the stirring shaft (61), and the length direction of the stirring rods (62) is vertical to the axial direction of the stirring shaft (61).
8. A method for treating a contaminated recycled aggregate, which is based on the contaminated recycled aggregate treatment system according to any one of claims 1 to 7, and which comprises:
s1, scooping up the sand-stone mixture in the river channel through a crawler-type collecting vehicle (1), and conveying the sand-stone mixture into a primary vibration separating screen (3);
s2, screening the sand-stone mixture into sand and stones by the primary vibration screening sieve (3), and respectively conveying the screened sand and stones into the two sand-stone rubbing and washing machines (2);
s3, adding clean stones into the sand rubbing and washing machine (2) containing the sand fished out from the river channel, and adding clean sand into the sand rubbing and washing machine (2) containing the sand fished out from the river channel;
s4, conveying the sand-stone mixture scrubbed in the two sand-stone scrubbing machines (2) into the two secondary vibration separating sieves (4) respectively;
s5, screening sand and stones fished out of the river channel by two secondary vibration separation sieves (4) respectively, and conveying the sand and stones into two dirt separation devices (5) respectively;
s6, removing the dirt on the surfaces of the sand and the stone by the two dirt separating devices (5) respectively;
s7, taking out the sand and the stones cleaned in the dirt separation device (5), and throwing the sand and the stones back to the river channel again.
9. The method for treating contaminated recycled aggregate according to claim 8, wherein a portion of sand and stones should be retained in step S7 as clean sand and stones to be added to the sand washer (2) at the next cleaning.
10. The method for treating contaminated recycled aggregate according to claim 8, wherein the sand screened in step S5 and added later is mixed with sand fished out from a river and added together to the dirt-separating device (5); the stones screened out in step S5 and added later are mixed with stones fished out of the river and added together to the dirt separation device (5).
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| CN112024357B (en) | 2022-11-15 |
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