CN117513095B - Processing technology of recycled asphalt concrete - Google Patents
Processing technology of recycled asphalt concrete Download PDFInfo
- Publication number
- CN117513095B CN117513095B CN202410020954.2A CN202410020954A CN117513095B CN 117513095 B CN117513095 B CN 117513095B CN 202410020954 A CN202410020954 A CN 202410020954A CN 117513095 B CN117513095 B CN 117513095B
- Authority
- CN
- China
- Prior art keywords
- crushing
- stirring
- guide
- unit
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000011384 asphalt concrete Substances 0.000 title claims abstract description 31
- 238000005516 engineering process Methods 0.000 title claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 85
- 238000004140 cleaning Methods 0.000 claims abstract description 53
- 239000000463 material Substances 0.000 claims abstract description 35
- 239000010426 asphalt Substances 0.000 claims abstract description 33
- 238000007599 discharging Methods 0.000 claims abstract description 24
- 238000002156 mixing Methods 0.000 claims abstract description 23
- 238000012216 screening Methods 0.000 claims abstract description 10
- 230000000750 progressive effect Effects 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims description 24
- 238000005192 partition Methods 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 239000012634 fragment Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 25
- 230000008569 process Effects 0.000 abstract description 23
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 description 22
- 239000002245 particle Substances 0.000 description 9
- 239000002994 raw material Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000012492 regenerant Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/05—Crushing, pulverising or disintegrating apparatus; Aggregate screening, cleaning, drying or heating apparatus; Dust-collecting arrangements specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1004—Reconditioning or reprocessing bituminous mixtures, e.g. salvaged paving, fresh patching mixtures grown unserviceable; Recycling salvaged bituminous mixtures; Apparatus for the in-plant recycling thereof
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
- E01C19/104—Mixing by means of movable members in a non-rotating mixing enclosure, e.g. stirrers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
- E01C19/1063—Controlling the operations
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
- E01C19/1068—Supplying or proportioning the ingredients
- E01C19/1072—Supplying or proportioning the ingredients the solid ingredients
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to a processing technology of recycled asphalt concrete, which comprises the following steps: crushing, namely conveying old asphalt materials into the progressive crushing unit through the feeding hole to finish crushing the old asphalt materials; screening, wherein the crushed materials fall into a filter plate in the filter cleaning unit, the screening is completed, and the residual waste residues on the surface of the filter plate are cleaned through a cleaning block; discharging, namely placing new asphalt in a discharging tank, and continuously discharging the asphalt into the stirring tank through an intermittent discharging unit; mixing, namely automatically dropping the screened materials and new asphalt into a stirring tank, and stirring the mixture through a mixing and stirring unit in the stirring tank. According to the invention, the progressive crushing unit is arranged, wherein the progressive crushing unit comprises two conical rollers, and the distances between the two conical rollers and the crushing outer cover are gradually changed gradually, so that the gradual changing of the crushing blocks and the crushing blocks in the crushing process is ensured, the gap between the crushing blocks is reduced, and the crushing quality is improved.
Description
Technical Field
The invention belongs to the technical field of raw asphalt concrete preparation, and particularly relates to a processing technology of recycled asphalt concrete.
Background
Asphalt concrete is commonly called asphalt concrete, mineral aggregate, broken stone or crushed gravel, stone dust or sand, mineral powder and the like with a certain grading composition are manually selected, and the mixture is mixed with road asphalt material with a certain proportion under a strictly controlled condition, so that the asphalt concrete needs to be replaced after long-time use, and the produced waste can be used for producing regenerated asphalt concrete.
The asphalt pavement heat regeneration technology is a whole set of technology of digging, regenerating, crushing and screening old asphalt pavement, mixing the old asphalt pavement with new asphalt, new aggregate and asphalt regenerant according to a certain proportion to achieve a certain road performance, and using the old asphalt pavement to re-pave materials, equipment and construction of pavement.
At present, when recycling waste asphalt concrete, firstly, massive asphalt concrete is extruded and crushed through a crushing mechanism, then crushed asphalt concrete is transported to a screening net, the crushed asphalt concrete is screened, but in the screening process, large-particle impurities are located on the surface of a filter screen at the moment, and the filter screen is gradually blocked as materials are continuously piled up, so that the filtering effect is influenced.
The present invention has been made in view of this.
Disclosure of Invention
In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that:
the processing technology of the recycled asphalt concrete comprises the following steps:
step one: crushing, namely conveying old asphalt materials into the progressive crushing unit through the feeding hole to finish crushing the old asphalt materials;
step two: screening, wherein the crushed materials fall into a filter plate in the filter cleaning unit, the screening is completed, and the residual waste residues on the surface of the filter plate are cleaned through a cleaning block;
step three: discharging, namely placing new asphalt in a discharging tank, and continuously discharging the asphalt into the stirring tank through an intermittent discharging unit;
step four: mixing, namely automatically dropping the screened materials and the new asphalt into a stirring tank, and stirring the mixture through a mixing and stirring unit in the stirring tank;
step five: transporting the mixed materials through a transport vehicle;
the step-by-step crushing unit comprises two conical rollers, the size of each conical roller positioned at the top is larger than that of the other conical roller, broken pieces are arranged on the side wall of each conical roller in a surrounding mode, a crushing outer cover is arranged on the outer wall of each conical roller, the inside of the crushing outer cover is provided with the broken pieces, and the distance from each conical roller to the side wall of the crushing outer cover is gradually reduced;
the filtering and cleaning unit comprises a supporting cover, wherein the top of the supporting cover is provided with a filter plate, the surface of the filter plate is movably provided with a pair of cleaning blocks, the inside of each cleaning block is provided with a guide notch, the surface of each guide notch is slidably provided with a plurality of pairs of sliding sleeves, each pair of sliding sleeves is movably inserted and provided with a push rod, the tail end of each push rod is provided with a baffle, the baffle slides in the sliding sleeves, the baffle is made of iron, the inside of each cleaning block is provided with a magnet, each pair of sliding sleeves is connected with a connecting rod, the tail end of each connecting rod is movably provided with a rotary disc, the bottom of each rotary disc is coaxially provided with a guide gear, the bottom of each guide gear is provided with an annular toothed plate in an engaged manner, and the annular toothed plate is clamped on the side wall of the supporting cover;
the intermittent discharging unit comprises a sealing plate and a sliding block, wherein an inclined chute is arranged on the surface of the sliding block, and the inclined chute is in sliding connection with the sealing plate;
the mixing stirring unit comprises a stirring shaft, and stirring rods with different sizes are arranged on the side wall of the stirring shaft in a surrounding mode.
As a preferred implementation mode of the invention, the top of the crushing outer cover is connected with a treatment tank, the inside of the treatment tank is wrapped with a step-by-step crushing unit and a filtering and cleaning unit, the top of the treatment tank is connected with a feeding hole, the bottom of the feeding hole is communicated with a chamber inside the crushing outer cover, the bottom of the crushing outer cover is provided with a guide cover, the guide cover is in a round table shape, and an outlet of the guide cover vertically corresponds to the filter plate.
As a preferable implementation mode of the invention, the two conical rollers are internally and fixedly provided with rotary shafts in a penetrating manner, the tops of the rotary shafts are movably provided with treatment tanks in a penetrating manner, the tops of the treatment tanks are welded with driving motors, the tail ends of output shafts of the driving motors are fixedly connected with the rotary shafts, the bottoms of the rotary shafts transversely and movably penetrate through the center positions of the filter plates, and cleaning blocks are welded on the side walls of the rotary shafts.
As a preferred implementation mode of the invention, the periphery of the turntable is fixedly provided with the guide bulge, the surface of the guide bulge is sleeved with the connecting ring, a strip-shaped chute is transversely arranged in the connecting ring, the width of the strip-shaped chute is matched with the diameter of the guide bulge, and the side wall of the connecting ring is fixedly connected with a connecting rod.
As a preferred embodiment of the invention, a pair of telescopic fences are movably arranged inside the push rod, and the telescopic fences are arranged outside the cleaning block.
As a preferred implementation mode of the invention, the surface of the sliding sleeve is provided with a positioning notch, the top of the cleaning block is transversely provided with a supporting transverse plate, the bottom of the supporting transverse plate is provided with a guide plate in an intermittent welding mode, the guide plate is matched with the positioning notch, the top of the partition plate is provided with a transverse groove, and the width of the transverse groove is the same as that of the positioning notch.
As a preferred implementation mode of the invention, the tail end of the sliding sleeve positioned at the inner side of the cleaning block is provided with a circular notch, the circular notch is matched with the specification of the magnet, the magnet horizontally corresponds to the tail end of each guide plate, the sliding sleeve is internally provided with a return spring, one side of the return spring is clamped in the sliding sleeve, and the other side of the return spring is clamped on the surface of the partition plate.
As a preferred implementation mode of the invention, the bottom of the treatment tank is connected with a stirring tank, an outlet of the treatment tank vertically corresponds to an inlet of the stirring tank, a positioning protrusion is arranged on the side wall of the stirring tank, a conveying pipeline transversely penetrates through the side wall of the positioning protrusion, one side of the conveying pipeline is connected with an inner cavity of the stirring tank, and the other side of the conveying pipeline is connected with a discharging tank.
As a preferred implementation mode of the invention, the stirring shaft is arranged at the center of the stirring tank, the top of the stirring shaft is fixedly connected with a rotating shaft penetrating through the filter plate, the side wall of the stirring shaft is connected with a pressing rod, the tail end of the pressing rod is movably provided with a guide wheel, and the length of the pressing rod is larger than that of the stirring rod.
As a preferred implementation mode of the invention, the inside of the positioning bulge is movably inserted and provided with a pressing block, the pressing block is fixedly connected with the sliding block, the outer wall of the sliding block and the inner cavity where the sliding block slides are provided with extrusion springs, the sealing plate is movably inserted and connected inside the positioning bulge, and the surface of the sealing plate movably penetrates through the inside of the conveying pipeline.
Compared with the prior art, the invention has the following beneficial effects:
the device comprises a step-by-step crushing unit, wherein the step-by-step crushing unit comprises two conical rollers, the distances between the two conical rollers and a crushing outer cover are gradually changed gradually, so that the situation that in the crushing process, the crushed pieces and the crushing blocks are gradually changed gradually, the gap between the crushed pieces and the crushing blocks is reduced, the crushing quality is improved, the two conical rollers are used for crushing materials in a grading manner, the effect of slow crushing speed under the condition of high crushing degree of the materials is reduced, and the device improves the crushing speed and the crushing quality;
the filtering and cleaning unit is arranged, the filtering net can filter impurities, the step-by-step crushing unit can drive the cleaning block to start rotating, the guide gear in the cleaning block moves along the annular toothed plate, so that the inner turntable is pushed to move, the connecting rod on the surface is driven to move left and right, the impurities on the surface of the push rod are pushed to move outwards by one end distance in the process of moving the connecting rod leftwards, after the end is reached, the push rod is driven to move inwards by the magnet, the impurities can not be reset after the impurities are pushed to reset when the push rod is reset, after the push rod is moved to an initial position, the push rod is reset, the impurities pushed before can be pushed outwards by the next push rod, and finally the impurities on the surface of the filter plate can be cleaned easily;
through being provided with mixing stirring unit, it is rotatory to drive the (mixing) shaft through smashing the unit step by step to stir the product that will have filtered, and in the stirring, depression bar and briquetting contact, thereby promote the briquetting to inside removal, through the slope spout on slider surface, promote the baffle and upwards move, thereby open conveying pipeline, carry the material into, through mixing stirring unit, accomplish the stirring, directly reach the purpose of mixing, the operation is simpler.
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
In the drawings:
FIG. 1 is a schematic three-dimensional structure of a process for processing recycled asphalt concrete;
FIG. 2 is a schematic view (I) of the internal structure of a process for processing recycled asphalt concrete;
FIG. 3 is a schematic view of the internal structure of a process for recycling asphalt concrete;
FIG. 4 is an enlarged view of FIG. 3A of a process for the manufacture of recycled asphalt concrete;
FIG. 5 is a three-dimensional view of the cleaning block of FIG. 4 of a process for recycling asphalt concrete;
FIG. 6 is a cross-sectional view (one) of FIG. 5 of a process for recycling asphalt concrete;
FIG. 7 is a cross-sectional view (II) of FIG. 5 showing a process for processing recycled asphalt concrete;
FIG. 8 is a cross-sectional view (III) of FIG. 5 of a process for recycling asphalt concrete;
FIG. 9 is a cross-sectional view of a stirred tank illustrating a process for processing recycled asphalt concrete;
FIG. 10 is a side view of FIG. 1 illustrating a process for the manufacture of recycled asphalt concrete;
fig. 11 is a cross-sectional view of the locating boss of fig. 10, a process of processing recycled asphalt concrete.
In the figure:
100. a treatment tank; 101. a feed hole;
200. a stirring tank; 201. positioning the bulge;
300. discharging the material tank; 301. a delivery conduit;
400. a step-by-step crushing unit; 401. crushing the outer cover; 4011. a guide cover; 4012. crushing the pieces; 402. a driving motor; 4021. a rotation shaft; 403. a conical roller; 4031. breaking fragments;
500. a filtering and cleaning unit; 501. a support cover; 5011. a filter plate; 5012. an annular toothed plate; 5013. a guide gear; 502. cleaning the block; 5021. a guide notch; 5022. a supporting cross plate; 5023. a guide plate; 503. a sliding sleeve; 5031. positioning the notch; 504. a push rod; 5041. a partition plate; 5042. a telescopic fence; 505. a return spring; 506. a magnet; 507. a turntable; 5071. a guide protrusion; 5072. a connecting ring; 5073. a connecting rod;
600. a mixing and stirring unit; 601. a stirring shaft; 6011. a stirring rod; 602. a compression bar; 6021. a guide wheel;
700. an intermittent discharging unit; 701. briquetting; 7011. a slide block; 7012. extruding a spring; 702. a sealing plate; 7021. and (5) tilting the chute.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention.
Embodiment one: as shown in fig. 1 to 11, a process for processing recycled asphalt concrete comprises the steps of:
step one: crushing, namely conveying old asphalt materials into the progressive crushing unit 400 through the feeding hole 101 to finish crushing the old asphalt materials;
step two: screening, wherein crushed materials fall into the filter plate 5011 in the filter cleaning unit 500 and are screened, and residues remained on the surface of the filter plate 5011 are cleaned by the cleaning block 502;
step three: discharging, namely placing new asphalt in a discharging tank 300, and continuously discharging the asphalt into the stirring tank 200 through an intermittent discharging unit 700;
step four: mixing, wherein the screened materials and new asphalt automatically fall into the stirring tank 200, and stirring of the mixture is completed through a mixing stirring unit 600 in the stirring tank 200;
step five: transporting the mixed materials through a transport vehicle;
the step-by-step crushing unit 400 comprises two conical rollers 403, the size of the conical roller 403 positioned at the top is larger than that of the other conical roller 403, crushing blocks 4031 are circumferentially arranged on the side wall of each conical roller 403, a crushing outer cover 401 is arranged on the outer wall of each conical roller 403, crushing blocks 4012 are arranged in the crushing outer cover 401, and the distance from the conical roller 403 to the side wall of the crushing outer cover 401 is gradually reduced; through being provided with crushing unit step by step, wherein crushing unit step by step includes two conical rollers, and two conical rollers are gradually near with the distance of smashing the dustcoat respectively to guarantee crushing in-process, crushing piece and broken piece gradually near, lead to the space between to diminish, thereby improved kibbling quality, and be provided with two conical rollers, can smash the material in grades, reduced under the circumstances that the material crushing degree is high, smash slow effect of speed, and the device has improved kibbling speed and quality.
The filtering and cleaning unit 500 comprises a supporting cover 501, a filtering plate 5011 is arranged at the top of the supporting cover 501, a pair of cleaning blocks 502 are movably arranged on the surface of the filtering plate 5011, a guide notch 5021 is arranged in the cleaning blocks 502, a plurality of pairs of sliding sleeves 503 are slidably arranged on the surface of the guide notch 5021, a push rod 504 is movably inserted in each pair of sliding sleeves 503, a baffle 5041 is arranged at the tail end of the push rod 504, the baffle 5041 slides in the sliding sleeves 503, the baffle 5041 is made of iron, a magnet 506 is arranged in the cleaning blocks 502, a connecting rod 5073 is connected between each pair of sliding sleeves 503, a rotary table 507 is movably arranged at the tail end of the connecting rod 5073, a guide gear 5013 is coaxially arranged at the bottom of the rotary table 507, an annular toothed plate 5012 is meshed at the bottom of the guide gear 5013, the annular toothed plate 5012 is clamped on the side wall of the supporting cover 501, through being provided with filtering cleaning element, wherein the filter screen is can filter impurity, and smash the unit step by step, can drive the cleaning block and begin to rotate, and the inside guide gear of cleaning block removes along annular pinion rack, thereby promote inside carousel removal, and then drive the connecting rod on surface and control the removal, at the in-process that the connecting rod removed left, promote the impurity on push rod surface and outwards remove one end distance, when certain end back, drive the push rod through magnet and inwards remove, can not reset with the impurity that has been promoted when reset, remove to the initial position after, the push rod resets this moment, and the impurity that the previous promoted can be continued outwards promotion by next push rod, finally can easily accomplish the impurity on filter surface and clear up.
The intermittent discharging unit 700 comprises a sealing plate 702 and a sliding block 7011, wherein an inclined sliding groove 7021 is formed in the surface of the sliding block 7011, and the inclined sliding groove 7021 is in sliding connection with the sealing plate 702; the mixing stirring unit 600 comprises a stirring shaft 601, and stirring rods 6011 with different sizes are arranged around the side wall of the stirring shaft 601. Through being provided with mixing stirring unit, it is rotatory to drive the (mixing) shaft through smashing the unit step by step to stir the product that will have filtered, and in the stirring, depression bar and briquetting contact, thereby promote the briquetting to inside removal, through the slope spout on slider surface, promote the baffle and upwards move, thereby open conveying pipeline, carry the material into, through mixing stirring unit, accomplish the stirring, directly reach the purpose of mixing, the operation is simpler.
As shown in fig. 2 and fig. 3, in a specific embodiment, a treatment tank 100 is connected to the top of a crushing outer cover 401, a step-by-step crushing unit 400 and a filtering and cleaning unit 500 are wrapped inside the treatment tank 100, a feeding hole 101 is connected to the top of the treatment tank 100, the bottom of the feeding hole 101 is mutually communicated with a cavity inside the crushing outer cover 401, a guide cover 4011 is arranged at the bottom of the crushing outer cover 401, the guide cover 4011 is in a circular truncated cone shape, and an outlet of the guide cover 4011 vertically corresponds to a filter plate 5011. Old asphalt put into the feeding hole 101 can fall into the crushing outer cover 401, at the moment, the driving motor 402 is started, the rotating shaft 4021 is driven by the driving motor 402 to start rotating, the surface of the rotating shaft 4021 is connected with two conical rollers 403, the distance from top to bottom to the crushing outer cover 401 gradually gets closer, the distance between the crushing block 4012 and the crushing block 4031 is reduced, the crushing size is gradually reduced, the rotating shaft 4021 rotates to drive the conical rollers 403 to drive the crushing block 4012 and the crushing block 4031 to move in a staggered mode, the crushing effect is achieved, and the two conical rollers 403 are arranged to ensure graded crushing, so that the condition that a crushing opening is blocked due to tight crushing at a time is avoided.
As shown in fig. 2 and fig. 3, further, a rotation shaft 4021 is fixedly and penetratingly arranged inside the two conical rollers 403, a treatment tank 100 is movably and penetratingly arranged at the top of the rotation shaft 4021, a driving motor 402 is welded and arranged at the top of the treatment tank 100, the tail end of an output shaft of the driving motor 402 is fixedly connected with the rotation shaft 4021, the bottom of the rotation shaft 4021 transversely and movably penetrates through the center position of a filter plate 5011, and a cleaning block 502 is welded and arranged on the side wall of the rotation shaft 4021. During the movement of the progressive crushing unit 400, the cleaning blocks 502 connected to the rotating shaft 4021 start to rotate synchronously, which finally causes the cleaning blocks 502 to rotate around the filter plates 5011 to push all the impurities to the surfaces of the cleaning blocks 502.
Embodiment two: as shown in fig. 3 and fig. 4, a guiding protrusion 5071 is fixedly arranged on the periphery of the turntable 507, a connecting ring 5072 is sleeved on the surface of the guiding protrusion 5071, a bar-shaped chute is transversely formed in the connecting ring 5072, the width of the bar-shaped chute is matched with the diameter of the guiding protrusion 5071, and a connecting rod 5073 is fixedly connected with the side wall of the connecting ring 5072. In the process of rotating the cleaning block 502, the guide gear 5013 on the driving surface rotates around the annular toothed plate 5012, finally the guide gear 5013 is driven to rotate, the coaxially connected turntable 507 is driven to start rotating, and the surface of the turntable 507 is provided with the guide protrusion 5071, at this time, the position of the guide protrusion 5071 changes, so that the connecting ring 5072 sleeved on the surface of the guide protrusion 5071 is driven to move left and right, and finally the purpose of driving the connecting rod 5073 and the tail end sliding sleeve 503 to reciprocate left and right is achieved.
In the embodiment shown in fig. 5, 6, 7 and 8, a pair of telescopic rails 5042 are movably disposed inside the push rod 504, and the telescopic rails 5042 are disposed outside the cleaning block 502. The locating notch 5031 has been seted up on sliding sleeve 503 surface, and clearance piece 502 top transversely is provided with and supports diaphragm 5022, supports diaphragm 5022 bottom intermittent type nature welding and is provided with deflector 5023, and deflector 5023 and locating notch 5031 adaptation, baffle 5041 top begins to have horizontal recess, and horizontal recess is the same with locating notch 5031 width. A circular notch is formed in the tail end of the sliding sleeve 503 located on the inner side of the cleaning block 502, the circular notch is matched with the specification of the magnet 506, the magnet 506 horizontally corresponds to the tail end of each guide plate 5023, a reset spring 505 is arranged in the sliding sleeve 503, one side of the reset spring 505 is clamped in the sliding sleeve 503, and the other side of the reset spring is clamped on the surface of the partition 5041. In the process of moving the sliding sleeve 503 to the right, the push rod 504 is driven to move to the right synchronously, the telescopic rail 5042 on the surface of the push rod 504 pushes the large particle impurities on the surface to move outwards until the position of the maximum distance of the movement of the sliding sleeve 503 is reached, at this time, the magnet 506 corresponds to the metal partition 5041, the magnet 506 drives the partition 5041 to start moving towards the inside of the sliding sleeve 503, the push rod 504 on the surface is synchronously contracted inwards, so that the push rod 504 is separated from the large particle impurities, after the push rod 504 moves to the balance position, the notch on the top of the partition 5041 corresponds to the guide notch 5021 on the surface of the sliding sleeve 503, in the process of moving the sliding sleeve 503 to the left, the guide plate 5023 is inserted into the notch on the top of the partition 5041 and the guide notch on the surface of the sliding sleeve 503, so that after the push rod 504 is separated from the magnet 506, the push rod 504 is still contracted until the push rod 504 moves to the initial state, at this time, the guide plate 5023 is separated from the notch, the push rod 504 is reset through the reset spring 505, and the previous large particle impurities move to the initial position of the next push rod 504, and the impurities are pushed to the outside of the filter plate 5011 through the next push rod 504.
Embodiment III: as shown in fig. 1 and 10, the bottom of the treatment tank 100 is connected with a stirring tank 200, an outlet of the treatment tank 100 vertically corresponds to an inlet of the stirring tank 200, a positioning protrusion 201 is arranged on the side wall of the stirring tank 200, a conveying pipeline 301 transversely penetrates through the side wall of the positioning protrusion 201, one side of the conveying pipeline 301 is connected with an inner cavity of the stirring tank 200, and the other side of the conveying pipeline 301 is connected with a discharging tank 300. Old asphalt is put into the treatment tank 100 through the feeding hole 101, a certain amount of new asphalt and a thickening agent are put into the discharge tank 300, and a heating sheet is installed in the discharge tank 300, so that raw materials in the treatment tank can be heated.
As shown in fig. 9, in the specific embodiment, a stirring shaft 601 is disposed at the center of the stirring tank 200, the top of the stirring shaft 601 is fixedly connected with a rotating shaft 4021 penetrating through a filter plate 5011, a pressing rod 602 is connected to the side wall of the stirring shaft 601, a guide wheel 6021 is movably disposed at the end of the pressing rod 602, and the length of the pressing rod 602 is greater than that of a stirring rod 6011. In the movement process of the step-by-step crushing unit 400, the stirring shaft 601 of the rotating shaft 4021 starts to rotate, the stirring shaft 601 rotates to drive the stirring rod 6011 to mix raw materials, the surface of the stirring shaft 601 is provided with the pressing rod 602, and the pressing block 701 can be extruded along with the rotation of the pressing rod 602.
As shown in fig. 10 and 11, further, a pressing block 701 is movably inserted in the positioning protrusion 201, the pressing block 701 is fixedly connected with the sliding block 7011, an extrusion spring 7012 is arranged on the outer wall of the sliding block 7011 and an inner cavity where the sliding block 7011 slides, a sealing plate 702 is movably inserted in the positioning protrusion 201, and the surface of the sealing plate 702 movably penetrates through the conveying pipeline 301. The briquetting 701 can move inwards, promote slider 7011 compression extrusion spring 7012, conveniently reset through extrusion spring 7012, and slider 7011 removes the back, slope spout 7021 position change, promotes closing plate 702 and upwards moves to carry agitator tank 200 with the inside raw materials of blowing jar 300, and stir through stirring rod 6011 and kibbling raw materials, reduced in this way and once put into the additive in the later stage, lead to the inhomogeneous condition of mixing to take place.
The implementation principle of the processing technology of the recycled asphalt concrete in the embodiment is as follows:
when the device is needed to prepare the recycled asphalt concrete, firstly, old asphalt is put into the treatment tank 100 through the feeding hole 101, a certain amount of new asphalt and a thickening agent are put into the discharge tank 300, and the discharge tank 300 is internally provided with a heating plate, so that raw materials in the interior can be heated.
Old asphalt put into the feeding hole 101 can fall into the crushing outer cover 401, at the moment, the driving motor 402 is started, the rotating shaft 4021 is driven by the driving motor 402 to start rotating, the surface of the rotating shaft 4021 is connected with two conical rollers 403, the distance from top to bottom to the crushing outer cover 401 gradually gets closer, the distance between the crushing block 4012 and the crushing block 4031 is reduced, the crushing size is gradually reduced, the rotating shaft 4021 rotates to drive the conical rollers 403 to drive the crushing block 4012 and the crushing block 4031 to move in a staggered mode, the crushing effect is achieved, and the two conical rollers 403 are arranged to ensure graded crushing, so that the condition that a crushing opening is blocked due to tight crushing at a time is avoided.
The crushed materials fall into the filter plate 5011 in the filter cleaning unit 500 through the guide cover 4011, the small-particle materials are filtered through the filter plate 5011, the materials passing through the filter plate enter the discharge tank 300, and the large-particle materials are located on the surface of the filter plate 5011.
During the movement of the progressive crushing unit 400, the cleaning blocks 502 connected to the rotating shaft 4021 start to rotate synchronously, which finally causes the cleaning blocks 502 to rotate around the filter plates 5011 to push all the impurities to the surfaces of the cleaning blocks 502.
In the process of rotating the cleaning block 502, the guide gear 5013 on the driving surface rotates around the annular toothed plate 5012, finally the guide gear 5013 is driven to rotate, the coaxially connected turntable 507 is driven to start rotating, and the surface of the turntable 507 is provided with the guide protrusion 5071, at this time, the position of the guide protrusion 5071 changes, so that the connecting ring 5072 sleeved on the surface of the guide protrusion 5071 is driven to move left and right, and finally the purpose of driving the connecting rod 5073 and the tail end sliding sleeve 503 to reciprocate left and right is achieved.
In the process of moving the sliding sleeve 503 to the right, the push rod 504 is driven to move to the right synchronously, and the telescopic rail 5042 on the surface of the push rod 504 pushes the large particle impurities on the surface to move outwards until the position of the maximum distance of the movement of the sliding sleeve 503 is reached, at this time, the magnet 506 corresponds to the metal partition 5041, the magnet 506 drives the partition 5041 to start moving towards the inside of the sliding sleeve 503, and the push rod 504 on the surface is synchronously contracted inwards, so that the push rod 504 is separated from the large particle impurities, after the push rod 504 moves to the balance position, the notch on the top of the partition 5041 corresponds to the guide notch 5021 on the surface of the sliding sleeve 503, when the sliding sleeve 503 moves to the left, the guide plate 5023 is inserted into the notch on the top of the partition 5041 and the guide notch on the surface of the sliding sleeve 503, so that after the push rod 504 is separated from the magnet 506, the push rod 504 is still contracted until the push rod 504 moves to the initial state, at this time, the guide plate 5023 is separated from the notch, the push rod 504 is reset through the reset spring 505, and the previous large particle impurities move to the initial position of the next push rod 504, and the impurities are pushed to the outside of the filter plate 5011 finally.
In the motion process of the step-by-step crushing unit 400, the stirring shaft 601 of the rotating shaft 4021 starts to rotate, the stirring shaft 601 rotates to drive the stirring rod 6011 to mix raw materials, the surface of the stirring shaft 601 is provided with the pressing rod 602, the pressing block 701 can be extruded along with the rotation of the pressing rod 602, the pressing block 701 can move inwards at the moment, the sliding block 7011 is pushed to compress the pressing spring 7012, the pressing spring 7012 is convenient to reset, the position of the inclined sliding groove 7021 changes after the sliding block 7011 moves, the sealing plate 702 is pushed to move upwards, so that the raw materials in the material placing tank 300 are conveyed to the stirring tank 200, and the stirring rod 6011 and the crushed raw materials are stirred, so that the situation that the mixing is uneven due to the fact that the adding materials are placed in the later stage is reduced.
Claims (3)
1. The processing technology of the recycled asphalt concrete is characterized by comprising the following steps of:
step one: crushing, namely conveying old asphalt materials into a step-by-step crushing unit (400) through a feeding hole (101) to finish crushing the old asphalt materials;
step two: screening, wherein crushed materials fall into a filter plate (5011) in a filtering and cleaning unit (500) and screening is completed, and residues remained on the surface of the filter plate (5011) are cleaned by a cleaning block (502);
step three: discharging, namely placing new asphalt in a discharging tank (300), and continuously discharging the asphalt into the stirring tank (200) through an intermittent discharging unit (700);
step four: mixing, namely automatically dropping the screened materials and new asphalt into the stirring tank (200), and stirring the mixture through a mixing and stirring unit (600) in the stirring tank (200);
step five: transporting the mixed materials through a transport vehicle;
the progressive crushing unit (400) comprises two conical rollers (403), the size of the conical roller (403) at the top is larger than that of the other conical roller (403), broken fragments (4031) are arranged on the side wall of each conical roller (403) in a surrounding mode, a crushing outer cover (401) is arranged on the outer wall of each conical roller (403), crushed fragments (4012) are arranged in the crushing outer cover (401), and the distance from the conical roller (403) to the side wall of the crushing outer cover (401) is gradually reduced;
the utility model discloses a filter, including crushing dustcoat (401), filter cleaning unit, filter plate (5011) and guide cover (4011), crushing dustcoat (401) top connection is provided with treatment jar (100), the inside parcel of treatment jar (100) has step-by-step crushing unit (400) and filter cleaning unit (500), the connection of treatment jar (100) top is provided with feed port (101), feed port (101) bottom communicates each other with crushing dustcoat (401) inside cavity, crushing dustcoat (401) bottom is provided with guide cover (4011), guide cover (4011) is the round platform shape, guide cover (4011) export and filter plate (5011) are vertical to correspond;
the two conical rollers (403) are internally and fixedly penetrated with a rotating shaft (4021), the top of the rotating shaft (4021) is movably penetrated with a treatment tank (100), the top of the treatment tank (100) is welded with a driving motor (402), the tail end of an output shaft of the driving motor (402) is fixedly connected with the rotating shaft (4021), the bottom of the rotating shaft (4021) transversely and movably penetrates through the center position of a filter plate (5011), and the side wall of the rotating shaft (4021) is welded with a cleaning block (502);
the device is characterized in that a stirring tank (200) is arranged at the bottom of the treatment tank (100) in a connecting mode, an outlet of the treatment tank (100) vertically corresponds to an inlet of the stirring tank (200), a positioning protrusion (201) is arranged on the side wall of the stirring tank (200), a conveying pipeline (301) transversely penetrates through the side wall of the positioning protrusion (201), one side of the conveying pipeline (301) is connected with an inner cavity of the stirring tank (200), and the other side of the conveying pipeline (301) is connected with a discharging tank (300);
the filtering and cleaning unit (500) comprises a supporting cover (501), a filtering plate (5011) is mounted at the top of the supporting cover (501), a pair of cleaning blocks (502) are movably arranged on the surface of the filtering plate (5011), guide gaps (5021) are formed in the cleaning blocks (502), a plurality of pairs of sliding sleeves (503) are slidably arranged on the surface of the guide gaps (5021), push rods (504) are movably inserted into the sliding sleeves (503), a partition plate (5041) is arranged at the tail end of each push rod (504), the partition plate (5041) slides in the sliding sleeves (503), the partition plate (5041) is made of iron, a magnet (506) is arranged in each pair of the cleaning blocks (502), a connecting rod (5073) is connected between each pair of the sliding sleeves (503), a rotary table (507) is movably arranged at the tail end of each connecting rod, guide gear (5013) is coaxially arranged at the bottom of each rotary table (507), annular toothed plates (5012) are meshed with each other, and the annular toothed plates (5012) are clamped on the side walls of the supporting cover (501).
The periphery of the rotary table (507) is fixedly provided with a guide protrusion (5071), the surface of the guide protrusion (5071) is sleeved with a connecting ring (5072), a strip-shaped chute is transversely formed in the connecting ring (5072), the width of the strip-shaped chute is matched with the diameter of the guide protrusion (5071), and the side wall of the connecting ring (5072) is fixedly connected with a connecting rod (5073);
a pair of telescopic fences (5042) are movably arranged in the push rod (504), and the telescopic fences (5042) are arranged at the outer side of the cleaning block (502);
a positioning notch (5031) is formed in the surface of the sliding sleeve (503), a supporting transverse plate (5022) is transversely arranged at the top of the cleaning block (502), a guide plate (5023) is intermittently welded at the bottom of the supporting transverse plate (5022), the guide plate (5023) is matched with the positioning notch (5031), a transverse groove is formed in the top of the partition plate (5041), and the width of the transverse groove is the same as that of the positioning notch (5031);
the tail end of the sliding sleeve (503) positioned at the inner side of the cleaning block (502) is provided with a circular notch, the circular notch is matched with the specification of the magnet (506), the magnet (506) horizontally corresponds to the tail end of each guide plate (5023), a return spring (505) is arranged in the sliding sleeve (503), one side of the return spring (505) is clamped in the sliding sleeve (503), and the other side of the return spring is clamped on the surface of the partition plate (5041);
the intermittent discharging unit (700) comprises a sealing plate (702) and a sliding block (7011), wherein an inclined sliding groove (7021) is formed in the surface of the sliding block (7011), and the inclined sliding groove (7021) is in sliding connection with the sealing plate (702);
the mixing stirring unit (600) comprises a stirring shaft (601), and stirring rods (6011) with different sizes are arranged on the side wall of the stirring shaft (601) in a surrounding mode.
2. The processing technology of recycled asphalt concrete according to claim 1, wherein the stirring shaft (601) is arranged at the center of the stirring tank (200), the top of the stirring shaft (601) is fixedly connected with a rotating shaft (4021) penetrating through a filter plate (5011), a pressing rod (602) is connected to the side wall of the stirring shaft (601), a guide wheel (6021) is movably arranged at the tail end of the pressing rod (602), and the length of the pressing rod (602) is larger than that of a stirring rod (6011).
3. The processing technology of recycled asphalt concrete according to claim 1, wherein a pressing block (701) is movably inserted in the positioning protrusion (201), the pressing block (701) is fixedly connected with a sliding block (7011), an extrusion spring (7012) is arranged on the outer wall of the sliding block (7011) and an inner cavity where the sliding block (7011) slides, the sealing plate (702) is movably inserted in the positioning protrusion (201), and the surface of the sealing plate (702) movably penetrates through the conveying pipeline (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410020954.2A CN117513095B (en) | 2024-01-08 | 2024-01-08 | Processing technology of recycled asphalt concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410020954.2A CN117513095B (en) | 2024-01-08 | 2024-01-08 | Processing technology of recycled asphalt concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117513095A CN117513095A (en) | 2024-02-06 |
| CN117513095B true CN117513095B (en) | 2024-03-08 |
Family
ID=89757067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410020954.2A Active CN117513095B (en) | 2024-01-08 | 2024-01-08 | Processing technology of recycled asphalt concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117513095B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117966571B (en) * | 2024-03-28 | 2024-05-28 | 太行城乡建设集团有限公司 | Old asphalt concrete block crushing equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1263933A (en) * | 2000-02-03 | 2000-08-23 | 王茂春 | Equipment and process for producing clean coal series |
| CN213854717U (en) * | 2020-11-09 | 2021-08-03 | 广东九洲建设集团有限公司 | Quick recovery unit of building rubbish |
| CN217292818U (en) * | 2022-02-19 | 2022-08-26 | 河南拓勤电子科技有限公司 | Mortar jar stirring real-time monitoring device |
| CN220284535U (en) * | 2023-06-30 | 2024-01-02 | 江苏创驰新材料科技有限公司 | Asphalt plant-mixing heat regeneration drying roller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8162245B2 (en) * | 2006-06-22 | 2012-04-24 | Terex Usa, Llc | Mobile aggregate crushing system and method |
-
2024
- 2024-01-08 CN CN202410020954.2A patent/CN117513095B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1263933A (en) * | 2000-02-03 | 2000-08-23 | 王茂春 | Equipment and process for producing clean coal series |
| CN213854717U (en) * | 2020-11-09 | 2021-08-03 | 广东九洲建设集团有限公司 | Quick recovery unit of building rubbish |
| CN217292818U (en) * | 2022-02-19 | 2022-08-26 | 河南拓勤电子科技有限公司 | Mortar jar stirring real-time monitoring device |
| CN220284535U (en) * | 2023-06-30 | 2024-01-02 | 江苏创驰新材料科技有限公司 | Asphalt plant-mixing heat regeneration drying roller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117513095A (en) | 2024-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN117513095B (en) | Processing technology of recycled asphalt concrete | |
| CN109012951A (en) | A kind of integrated treatment building waste devices and methods therefor | |
| CN113413958A (en) | Preparation system and preparation method of recycled fine aggregate self-compacting concrete | |
| CN110640133A (en) | Casting process of automobile brake disc and used sand recovery system | |
| CN213791874U (en) | Breaker is used in concrete production | |
| CN111452414A (en) | Scrap iron recycling and processing block forming equipment | |
| CN112060414A (en) | Waste rubber recycling system | |
| CN115722630A (en) | Foundry sand recycling and processing device | |
| CN117104573A (en) | Rice weighing device | |
| CN214159727U (en) | Diamond synthesis block crushing device | |
| CN114769284B (en) | Construction waste vibrating crushing and reforming integrated equipment | |
| CN112934358B (en) | Building curtain wall recycling and crushing device and crushing method thereof | |
| CN115608457A (en) | Edible mushroom production is with abandonment fungus package processing apparatus | |
| CN211190091U (en) | Spherical formaldehyde particulate matter production facility that removes | |
| CN211368293U (en) | Novel asphalt concrete regeneration device | |
| CN216224754U (en) | Lime sand brick raw materials for production preprocessing device for solid waste treatment | |
| CN115228901B (en) | Energy-saving and environment-friendly waste recycled concrete equipment and method | |
| CN214210710U (en) | Raw materials sieving mechanism for cement manufacture | |
| CN111068829A (en) | Electric power insulator deironing device | |
| CN216707884U (en) | Novel building rubbish brickmaking machine | |
| CN112475305B (en) | Metal powder raw material processing system for injection molding and processing method thereof | |
| CN216261274U (en) | Multifunctional pharmaceutical swing granulator | |
| CN215939841U (en) | Carborundum miropowder agitating unit | |
| CN114178164B (en) | Energy-saving and environment-friendly gravel refining and screening device | |
| CN220840900U (en) | Premixing equipment for concrete production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |