CN117427707B - Process for recycling steel bars and aggregates in waste concrete crushing - Google Patents
Process for recycling steel bars and aggregates in waste concrete crushing Download PDFInfo
- Publication number
- CN117427707B CN117427707B CN202311292569.5A CN202311292569A CN117427707B CN 117427707 B CN117427707 B CN 117427707B CN 202311292569 A CN202311292569 A CN 202311292569A CN 117427707 B CN117427707 B CN 117427707B
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- 239000004567 concrete Substances 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000002699 waste material Substances 0.000 title claims abstract description 21
- 230000008569 process Effects 0.000 title claims abstract description 20
- 238000004064 recycling Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 title claims description 30
- 239000010959 steel Substances 0.000 title claims description 30
- 238000003825 pressing Methods 0.000 claims abstract description 64
- 239000000463 material Substances 0.000 claims abstract description 62
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 238000007873 sieving Methods 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims abstract description 12
- 230000033001 locomotion Effects 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims description 43
- 238000012216 screening Methods 0.000 claims description 17
- 239000002893 slag Substances 0.000 claims description 10
- 238000013016 damping Methods 0.000 claims description 9
- 239000012634 fragment Substances 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000012615 aggregate Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 241001330002 Bambuseae Species 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000012209 synthetic fiber Substances 0.000 claims description 3
- 229920002994 synthetic fiber Polymers 0.000 claims description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 5
- 238000002360 preparation method Methods 0.000 abstract description 3
- 230000008929 regeneration Effects 0.000 abstract description 2
- 238000011069 regeneration method Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010008 shearing Methods 0.000 description 4
- 244000309464 bull Species 0.000 description 3
- 238000007885 magnetic separation Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C1/00—Crushing or disintegrating by reciprocating members
- B02C1/14—Stamping mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/10—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member
- B02C4/12—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member in the form of a plate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/02—Codes relating to disintegrating devices adapted for specific materials for reinforced concrete
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to the technical field of concrete regeneration, in particular to a process for recovering reinforcing steel bars and aggregates in waste concrete crushing, which is characterized in that a pressing frame, an inclined rod, a feeding frame, a positioning piece and a pressing mechanism are arranged to realize automatic centralizing limitation of a stacking plate during feeding, so that the influence on the separation effect of concrete and reinforcing steel bars due to offset and random movement is reduced; the structure ensures the separation of the concrete and the reinforcing steel bars, avoids the damage of the reinforcing steel bars, reduces the subsequent demagnetizing process and improves the recovery efficiency; the pressing roller assembly and the sieving mechanism are further arranged, so that the concrete blocks with the reinforced bars removed are further crushed, the materials are sieved and discharged separately, the aggregate preparation efficiency is improved, and a complete and efficient recycling process is realized.
Description
Technical Field
The invention relates to the technical field of concrete regeneration, in particular to a process for recycling reinforcing steel bars and aggregates in waste concrete crushing.
Background
The recycled concrete is prepared by crushing, cleaning and grading the waste composite floor slab, mixing with the grading according to a certain proportion, partially or completely replacing natural aggregates such as sand stone and the like, and adding new concrete prepared by cement, water and the like, wherein when the recycled concrete aggregates are prepared, the waste composite floor slab is required to be crushed, so that the waste composite floor slab is forced to meet the manufacturing requirement of the recycled concrete;
when the traditional recycled concrete aggregate manufacturing equipment is used for manufacturing the recycled concrete aggregate, the following problems often exist:
The method comprises the following steps: in the conventional mode of shearing by using clamping jaws to force steel bars to be separated from concrete, in the running process, although the laminated floor slab can be sheared into a plurality of fragments and the concrete at the edge of the slab body is extruded and crushed, the clamping range is limited, so that the deep steel bars in the slab body are difficult to extrude and discharge, meanwhile, the slab body is forced to be divided into a plurality of groups of scattered plates by shearing, the positions of the plates of the laminated floor slab are difficult to determine after each shearing, and the positions of the shearing clamping jaws are required to be continuously adjusted and moved, so that the crushing difficulty is increased, and the manufacturing efficiency of aggregate is reduced;
Secondly, directly putting the composite floor slab into crushing equipment for crushing, and then carrying out magnetic separation on a mixture of reinforced steel bars and concrete fragments after the reinforced steel bars and the concrete fragments are forced to form slag, wherein the mode not only has a seriously damaged reinforced steel bar structure, but also causes high magnetic separation difficulty and low magnetic separation efficiency due to the reduction of the volumes of the crushed concrete and the reinforced steel bars, so that the recycled concrete materials are forced to still carry a large amount of reinforced steel bar substances, the recycling efficiency is reduced, and the aggregate manufacture is influenced;
In view of the technical drawbacks of this aspect, a solution is now proposed.
Disclosure of Invention
The invention aims to realize automatic centralizing limit on the composite floor slab during feeding by arranging the pressing frame, the inclined rod, the feeding frame, the positioning piece and the pressing mechanism, and reduce the influence on the separation effect of concrete and steel bars due to offset and random movement; the structure ensures the separation of the concrete and the reinforcing steel bars, avoids the damage of the reinforcing steel bars, reduces the subsequent demagnetizing process and improves the recovery efficiency; the pressing roller assembly and the sieving mechanism are further arranged, so that the concrete blocks with the reinforced bars removed are further crushed, the materials are sieved and discharged separately, the aggregate preparation efficiency is improved, and a complete and efficient recycling process is realized.
The aim of the invention can be achieved by the following technical scheme: a technology for recycling steel bars and aggregates in waste concrete crushing is realized by processing a steel bar and aggregate recycling device in waste concrete crushing, and comprises the following steps:
S1: firstly, placing a single group of waste composite floor slabs on one end, extending to the outside of an operation box, of the upper end face of a first material guide plate, starting an air cylinder, pushing a pressing frame by using a push rod, an inclined rod and a pressing mechanism to subside, wherein the inclined rod firstly contacts the material guide plate by the pressing mechanism to push the first material guide plate to move horizontally, forcing the first material guide plate to move to the inside of the operation box, and moving the composite floor slabs to the center of the feeding frame before the pressing mechanism contacts the first material guide plate; when moving, the front and rear ends of the composite floor slab are automatically righted by using the locating piece, and the pressing mechanism is forced to face the composite floor slab;
S2: gradually extruding and crushing the composite floor slab by using a pressing mechanism;
S3: the concrete blocks after extrusion and crushing fall downwards through the long grooves, secondary rolling and crushing are carried out when the concrete blocks slide to the press roller, and after rolling is finished, powder slides downwards to the screen mesh through the inclined surface of the second material guide plate for efficient screening;
s4: and finally, putting the fine-screened aggregate, cement, synthetic fiber, water reducer and water into a mixing container according to a proportion, and stirring and mixing to obtain the new concrete.
Further, a feeding frame is arranged at the middle section of the inner wall at one side of the operation box, an air cylinder is arranged at the center of the inner wall at the top of the operation box, a push rod is arranged at the bottom of the air cylinder, a pressing frame is fixedly arranged at the bottom of the push rod, inclined rods are hinged to the front end face and the rear end face of the pressing frame near one side of the middle section respectively, a pressing mechanism is arranged at the other side of the bottom surface of the pressing frame, the bottom surface of the inclined rods is positioned at one side of the lower end of the pressing mechanism, a sieving mechanism is arranged at the lower end of the feeding frame in the operation box, and discharge ports are arranged at the center and two sides of the bottom of the operation box;
Wherein one half of the feeding frame extends to the outside of the operation box, the transverse section of the feeding frame is narrow and wide in the left and right, the front and rear inner walls of the feeding frame close to the top end are provided with adaptive sliding grooves, a first guide plate is connected between the two groups of sliding grooves in a sliding way, and one end of the material guide plate extends to the outside of the feeding frame, slots are respectively formed in the front end and the rear end of one end of the top surface of the material guide plate, which is positioned at the bottom of the inclined rod, and a plurality of groups of long slots are formed in the equidistant separation of one end of the upper end of the material guide plate, which is far away from the slots, and positioning pieces are arranged in each group of long slots.
Further, the material pressing mechanism comprises a fixed frame, the fixed frame is fixedly arranged at one end of the bottom surface of the material pressing frame, guide rods are respectively arranged at the front end and the rear end of the inside of the fixed frame, one ends of the two groups of guide rods are fixedly connected with connecting rods together, the front end and the rear end of the connecting rods are slidably connected in transverse grooves formed in one sides, far away from the opening of the frame body, of the front inner wall and the rear inner wall of the fixed frame, the other ends of the two groups of guide rods extend to the outside of the fixed frame, sleeves are respectively slidably connected at the middle sections of the two groups of guide rods, a long rod I is fixedly arranged between the two groups of the sleeves, and a long rod II is fixedly arranged between the two groups of guide rods at one end penetrating through the outside of the fixed frame;
The fixed frame top inner wall center department swing joint has the carousel, and carousel top pivot runs through to fixed frame outside and fixed mounting has driving motor, carousel bottom surface is located the front and back end and punishment fixed mounting has the bull stick, two sets of the bull stick is kept away from the one end of other side and is articulated respectively has the hinge pole, two sets of the one end that the bull stick was kept away from to the hinge pole is articulated with connecting rod and a stock top surface center department respectively.
Further, a plurality of groups of inserting cylinders are arranged at the bottoms of the first long rod and the second long rod in a penetrating mode at equal intervals, conical rods are arranged inside the inserting cylinders in a penetrating mode, a first spring damping shock absorber is arranged between one end of each conical rod and the inner wall of each inserting cylinder, the other end of each conical rod extends to the outside of each inserting cylinder, a chute is arranged at one side of the outside of each inserting cylinder, a round shaft is arranged at one side of the bottom face of each conical rod, and the round shaft is connected inside the chute and is located at the lower end of each chute in a sliding mode.
Further, the inside stock guide second that is provided with the slope form that is located stock guide lower extreme department of pay-off frame, and stock guide second lower one end vertical extension to pay-off frame bottom, the inside lower one end department upper end department that is located stock guide second of pay-off frame is provided with the compression roller, and the compression roller front and back end is connected with pay-off frame inner wall rotation through the pivot, the front end pivot of compression roller extends to the pay-off frame outside and is provided with biax motor, biax motor's front end pivot department fixed mounting has the driving gear.
Further, the locating piece comprises two groups of inverted convex sliding drums, the two groups of inverted convex sliding drums are respectively arranged at the front end and the rear end of the inside of the long groove in a sliding mode, the top of each inverted convex sliding drum extends to the outside of the long groove, a conical sheet is fixedly arranged at the center of the top of each inverted convex sliding drum, the tips of the conical sheets are opposite in front and back, the bottoms of the two groups of inverted convex sliding drums extend to the long groove and are fixedly provided with abutting sheets, one ends of the abutting sheets, far away from the inverted convex sliding drums, are in a curved surface shape and abut against the inner wall of the feeding frame, an inner groove is formed in the upper end face of each abutting sheet, the inner groove is located close to the sliding rod of each inverted convex sliding drum in a sliding mode, the bottom face of each sliding rod is fixedly connected with one bottom face of the corresponding guide plate, and a spring damping damper II is jointly arranged between the sliding rod and the inner wall of the other in the inner groove.
Further, the mechanism that sieves includes the rectangle sliding frame, the rectangle sliding frame sets up and is located the pay-off frame lower extreme in the operation box is inside, the inside concave card frame that the inner wall is located both sides department around the rectangle sliding frame front and back end sliding connection respectively is at fixed mounting in the operation box, is close to two sets of concave card frame top inner walls equidistance of rectangle sliding frame one side are provided with a plurality of groups tooth's socket, the terminal surface is located the center both sides punishment fixed mounting and is had a spacing section of thick bamboo before the rectangle sliding frame, two sets of be provided with the triangle runner between the spacing section of thick bamboo, and the edges and corners department of triangle runner all are curved surface structure, triangle runner passes through the bearing rotation and connects in operation box front end inner wall department, and the bearing outside is located between operation box front end inner wall and the triangle runner and is provided with driven gear, joint drive belt between driven gear and the driving gear.
Further, the inside receiving plate that is provided with three quarters long for rectangle sliding frame of rectangle sliding frame, receiving plate one end extends to rectangle sliding frame upper end department, and receiving plate top surface one side department and lie in rectangle sliding frame middle section department and inlay the installation screen cloth, receiving plate front and back end center department has spacing gear through pivot fixed mounting respectively, spacing gear runs through the spacing groove of seting up near center one side department at inner wall around the rectangle sliding frame respectively, and spacing gear top surface extends to spacing groove outside.
Further, the extrusion crushing process in S2 specifically includes: the composite floor slab is positioned between the first long rod and the second long rod, a driving motor is started to drive the turntable and the rotating rod to rotate anticlockwise, the two groups of hinge rods push the connecting rod and the first long rod to move reversely, the second long rod and the first long rod are close to each other, meanwhile, the edges of the two sides of the composite floor slab are extruded, concrete at the edges of the slab body is gradually disintegrated due to the fact that the concrete is extruded by the plurality of groups of taper rods in a drilling way, and the concrete is continuously screened out downwards through the long grooves and separated from the steel bars;
After the composite floor slab is extruded for the first time, the integral length of the composite floor slab is shortened, at the moment, the rotary table rotates clockwise, the long rod II and the long rod I are respectively far away from the composite floor slab to store force again, then the rotary table rotates anticlockwise again, the reverse rotation amplitude is larger than the first rotation amplitude, the distance between the long rod I and the long rod II is forced to be closer and the composite floor slab is extruded further, the concrete of the composite floor slab is crushed step by step, the concrete is forced to be separated from the steel bars, the concrete is led downwards along with the long groove, the separated steel bars stay on one surface of the material guide plate, the separation of the long rod II and the long rod I is guaranteed, the steel bars are prevented from being damaged, and the subsequent demagnetizing procedure is reduced.
Further, the secondary rolling and sieving process in S3 specifically includes: firstly, starting a double-shaft motor, driving a compression roller and a driving gear to rotate at the same time, and driving a driven gear and a triangular rotating wheel to rotate at the same time by matching with a transmission belt, wherein the compression roller continuously extrudes concrete blocks to force waste concrete to be in a broken state; then, concrete fragments slide down to the screen cloth through the slope of stock guide II and screen, pass through the screen cloth and screen, not only break up the concrete slag that rolls, and conveniently screen out the soil sediment that wherein the volume is close and outwards discharge the collection with the bin outlet in center, follow the triangle runner and rotate and constantly promote two sets of spacing barrels, and force rectangle sliding frame reciprocating motion, accelerate the concrete slag screening to the screen cloth surface, spacing gear moves to one side concave clamping frame inside along with the rectangle sliding frame, protruding spacing gear meshes with the tooth's socket and realizes the clockwise upset of butt joint flitch, discharge the soil slag that will fail to screen through the bin outlet of side, and the fast return of material receiving plate when the rectangle sliding frame moves to the opposite side, realize the high-efficient screening to the concrete slag, realize complete high-efficient recovery technology.
Compared with the prior art, the invention has the beneficial effects that:
According to the invention, the pressing frame, the inclined rod, the feeding frame, the positioning piece and the pressing mechanism are arranged, the inclined rod is used for obliquely pushing the first material guide plate to move before the pressing mechanism contacts the first material guide plate, so that the first material guide plate is forced to move to the inside of the operation box, the first material guide plate is used for moving the first material guide plate to the center of the feeding frame before the pressing mechanism contacts the first material guide plate, in the process, the positioning piece is used for automatically clamping the first material guide plate, so that the automatic centering of the first material guide plate to be crushed is realized, the alignment of the first material guide plate and the pressing mechanism is kept, the random movement of the first material guide plate during the extrusion crushing of the first material guide plate is reduced, the extrusion crushing effect is influenced, and the crushing efficiency is improved;
The invention is through setting up the swager, it forces the second pole to get close to each other with the long pole through reversing of the rotary table, squeeze both sides edge of the laminated floor at the same time, the concrete of the edge of the board body is broken up gradually because of being bored and squeezed by the multiunit awl pole, after restoring the power again, repeat the former action, and increase the rotation range, force the distance between long pole one and long pole two more and further squeeze the laminated floor, so the gradual breaking up of laminated floor concrete of step by step, the structure has guaranteed the separation of concrete and reinforcing bar, avoid the reinforcing bar from damaging and reducing the subsequent demagnetizing process, raise the recovery efficiency.
According to the invention, the compression roller assembly and the sieving mechanism are arranged, wherein the compression roller assembly is used for further crushing the automatically separated concrete blocks, in the crushing process, the sieving mechanism is used for realizing reciprocating sieving of the concrete crushed aggregates, accelerating sieving, intermittently overturning of a screen mesh, forcing the sieved materials and the materials which are not discharged to be collected separately, further improving the aggregate preparation efficiency, and realizing a complete and efficient recycling process.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the operator's compartment of the present invention;
FIG. 3 is a top cross-sectional view of the operator's compartment of the present invention;
FIG. 4 is a bottom view of a portion of the guide plate of the present invention in combination with a positioning member;
FIG. 5 is a cross-sectional view of a feed frame of the present invention;
FIG. 6 is a top view of the press mechanism of the present invention;
FIG. 7 is a bottom cross-sectional view of the press mechanism of the present invention;
FIG. 8 is a top view of the screening mechanism of the present invention;
Fig. 9 is a schematic perspective view of a concave card frame according to the present invention.
In the figure: 1. an operation box; 2. a feeding frame; 21. a chute; 22. a first material guide plate; 23. a slot; 24. a long groove; 25. a positioning piece; 251. a reverse convex sliding cylinder; 252. conical sheets; 253. abutting the sheet; 254. an inner tank; 255. a slide bar; 256. a spring damping damper II; 26. a second material guide plate; 27. a press roller; 28. a biaxial motor; 29. a drive gear; 3. a cylinder; 4. a push rod; 5. pressing a frame; 6. a diagonal rod; 7. a material pressing mechanism; 71. a fixed frame; 72. a guide rod; 73. a connecting rod; 731. a transverse groove; 74. a sleeve; 75. a long rod I; 76. a second long rod; 77. a turntable; 78. a driving motor; 79. a rotating rod; 710. a hinge rod; 711. a plug cylinder; 712. a taper rod; 713. a spring damping damper I; 714. a chute; 715. a circular shaft; 8. a sieving mechanism; 81. a rectangular sliding frame; 82. a concave clamping frame; 83. tooth slots; 84. a limiting cylinder; 85. triangle rotating wheel; 86. a driven gear; 87. a transmission belt; 88. a receiving plate; 89. a screen; 810. a limit gear; 811. a limit groove; 9. and a discharge port.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-9, a process for recycling steel bars and aggregates in waste concrete crushing is realized by processing a steel bar and aggregate recycling device in waste concrete crushing, a feeding frame 2 is arranged at the middle section of the inner wall of one side of an operation box 1, one half of the feeding frame 2 extends to the outside of the operation box 1, the transverse section of the feeding frame 2 is narrow left and wide right, adaptive sliding grooves 21 are formed in the positions, close to the top end, of the front and rear inner walls of the feeding frame 2, two groups of sliding grooves 21 are connected with a first guide plate 22 in a sliding manner, one end of the first guide plate 22 extends to the outside of the feeding frame 2, slots 23 are respectively formed in the front end and the rear end of one end, which is positioned at the bottom of a diagonal rod 6, of the top surface of the first guide plate 22 is equidistantly separated from one end of the slots 23, and a plurality of groups of long grooves 24 are formed in the upper end of the first guide plate 22;
The center of the inner wall of the top of the operation box 1 is provided with a cylinder 3, the bottom of the cylinder 3 is provided with a push rod 4, the bottom of the push rod 4 is fixedly provided with a pressing frame 5, one side, close to the middle section, of the front end face and the rear end face of the pressing frame 5 is respectively hinged with a diagonal rod 6, the other side of the bottom face of the pressing frame 5 is provided with a pressing mechanism 7, the bottom face of the diagonal rod 6 is positioned at one side of the lower end of the pressing mechanism 7, the inside of the operation box 1 is provided with a sieving mechanism 8 at the lower end of the feeding frame 2, the center and two sides of the bottom of the operation box 1 are provided with discharge ports 9, a single group of waste laminated floor slabs are placed at a first guide plate 22 extending outside the operation box 1, the cylinder 3 is started to utilize the push rod 4 to push the pressing frame 5, the diagonal rod 6 and the pressing mechanism 7 to settle, the diagonal rod 6 contacts the first guide plate 22 before the pressing mechanism 7 contacts the first guide plate 22 and obliquely pushes the first guide plate 22 to move, so that the floor is forced to be stored inside the operation box 1, and the laminated floor is moved to the center of the feeding frame 2 before the pressing mechanism 7 contacts the first guide plate 22;
The positioning piece 25 is arranged in each group of long grooves 24, the positioning piece 25 comprises two groups of inverted convex sliding drums 251, the two groups of inverted convex sliding drums 251 are respectively arranged at the front end and the rear end of the inside of the long grooves 24 in a sliding way, the tops of the inverted convex sliding drums 251 extend to the outside of the long grooves 24, conical sheets 252 are fixedly arranged at the centers of the tops of the inverted convex sliding drums 251, the tips of the front and rear adjacent groups of conical sheets 252 are opposite, the bottoms of the two groups of inverted convex sliding drums 251 extend to the long grooves 24 and are fixedly provided with abutting sheets 253, one ends of the abutting sheets 253 far away from the inverted convex sliding drums 251 are in a curved shape and abut against the inner wall of the feeding frame 2, an inner groove 254 is formed in the upper end face of each abutting sheet 253, a sliding rod 255 is connected inside the inner groove 254 close to the inverted convex sliding drum 251 in a sliding way, the bottom face of each sliding rod 255 is fixedly connected with the bottom face of the guide plate one 22, and a spring damping damper two 256 are jointly arranged between the sliding rod 255 and the inner wall of the other side of the inner groove 254;
With the movement of the first guide plate 22, the plate body and the plurality of groups of positioning pieces 25 move from the wider end to the narrower end of the feeding frame 2, meanwhile, the abutting pieces 253 at the front end and the rear end are simultaneously close to the center due to the change of the inner width of the feeding frame 2, the sliding rod 255 and the inner groove 254 relatively move and force the second spring damping damper 256 to compress, so that the front and rear corresponding inverted convex sliding cylinders 251 and the conical pieces 252 are mutually close to simultaneously abut against the front end and the rear end of the laminated floor slab, and part of the conical pieces 252 are inserted into the laminated floor slab, so that the limiting, abutting and automatic righting of the laminated floor slab are realized, thereby facilitating the pressing and crushing of the plate body by the pressing mechanism 7, and reducing the arbitrary movement of the plate body during pressing to influence the pressing and crushing effect.
Example 2
Referring to fig. 6 and 7, the pressing mechanism 7 includes a fixed frame 71, the fixed frame 71 is fixedly installed at one end of the bottom surface of the pressing frame 5, guide rods 72 are respectively disposed at front and rear ends of the inside of the fixed frame 71, one ends of two groups of guide rods 72 are fixedly connected with a connecting rod 73 together, the front and rear ends of the connecting rod 73 are slidably connected in a transverse slot 731 formed in one side of the front and rear inner walls of the fixed frame 71, which is far away from the opening of the frame body, the other ends of the two groups of guide rods 72 extend to the outside of the fixed frame 71, sleeves 74 are respectively slidably connected in middle sections of the two groups of guide rods 72, a first long rod 75 is fixedly installed between the two groups of sleeves 74, and a second long rod 76 is fixedly installed at one end of the two groups of guide rods 72, which is located through the outside of the fixed frame 71;
The center of the inner wall of the top of the fixed frame 71 is movably connected with a rotary table 77, a rotary shaft at the top of the rotary table 77 penetrates through the outside of the fixed frame 71 and is fixedly provided with a driving motor 78, rotary rods 79 are respectively fixedly arranged at the front end and the rear end of the bottom surface of the rotary table 77, one ends of the two groups of rotary rods 79, which are far away from each other, are respectively hinged with hinge rods 710, one ends of the two groups of hinge rods 710, which are far away from the rotary rods 79, are respectively hinged with the connecting rods 73 and the center of the top surface of a long rod one 75, a plurality of groups of inserting cylinders 711 penetrate through the bottom of the long rod one 75 and the bottom of the long rod two 76 at equal distances, and conical rods 712 are penetrated inside each group of inserting cylinders 711;
When the composite floor slab is positioned between the first long rod 75 and the second long rod 76, the driving motor 78 is started to drive the turntable 77 and the rotating rod 79 to rotate anticlockwise, the two groups of hinge rods 710 push the connecting rod 73 and the first long rod 75 to move reversely respectively, the second long rod 76 and the first long rod 75 are close to each other, meanwhile, the edges of the two sides of the composite floor slab are extruded, the concrete at the edges of the slab body is gradually disintegrated due to the drilling extrusion of the plurality of groups of cone rods 712, and the concrete is continuously screened out downwards through the long grooves 24 and separated from the steel bars;
After the composite floor slab is extruded for the first time, the integral length of the composite floor slab is shortened, at the moment, through rotating the rotary disc 77 clockwise, the long rod II 76 and the long rod I75 are respectively far away from the composite floor slab to store force again, then the rotary disc 77 is rotated anticlockwise again, the reverse rotation amplitude is larger than the first rotation amplitude, the distance between the long rod I75 and the long rod II 76 is more close, the composite floor slab is extruded further, the concrete of the composite floor slab is crushed step by step, the concrete is forced to be separated from the steel bars, the concrete is led downwards along with the long groove 24, the separated steel bars stay on the surface of the first guide plate 22, the separation of the long rod II and the steel bars is avoided, and the subsequent demagnetizing procedure is reduced because the steel bars are damaged;
A first spring damping damper 713 is arranged between one end of the conical rod 712 and the inner wall of the inserting cylinder 711, the other end of the conical rod 712 extends to the outer part of the inserting cylinder 711, a chute 714 is arranged at one side of the outer part of the inserting cylinder 711, a round shaft 715 is arranged at one side of the bottom surface of the conical rod 712, the round shaft 715 is slidably connected at the lower end of the inner part of the chute 714, the first long rod 75 and the second long rod 76 are simultaneously propped against each other, when the conical rod 712 impacts the edge of a superposed floor slab, the first spring damping damper 713 is forced to be compressed by being inserted into the inner part of the inserting cylinder 711 due to the propped against, and when the round shaft 715 slides along the track of the chute 714, the conical rod 712 is rotated to be inserted into the inner part of the inserting cylinder 711, and only the tip part of the conical rod 712 is left outside the inserting cylinder 711.
Example 3
Referring to fig. 2, 5, 8 and 9, a second inclined guide plate 26 is disposed at the lower end of the first guide plate 22 in the feeding frame 2, the lower end of the second guide plate 26 extends vertically to the bottom of the feeding frame 2, a press roller 27 is disposed at the upper end of the lower end of the second guide plate 26 in the feeding frame 2, the front end and the rear end of the press roller 27 are rotatably connected with the inner wall of the feeding frame 2 through a rotating shaft, the front end rotating shaft of the press roller 27 extends to the outside of the feeding frame 2 and is provided with a double-shaft motor 28, a driving gear 29 is fixedly mounted at the front end rotating shaft of the double-shaft motor 28, the double-shaft motor 28 is started to drive the press roller 27 and the driving gear 29 to rotate simultaneously, the press roller 27 continuously extrudes concrete blocks to force waste concrete to be in a broken state, and then slides down through the inclination of the second guide plate 26;
the sieving mechanism 8 comprises a rectangular sliding frame 81, wherein the rectangular sliding frame 81 is arranged in the operation box 1 and positioned at the lower end of the feeding frame 2, the front end and the rear end of the rectangular sliding frame 81 are respectively and slidably connected in a concave clamping frame 82 fixedly arranged at the front inner wall and the rear inner wall of the operation box 1 and positioned at the two sides, a plurality of groups of tooth grooves 83 are equidistantly arranged on the inner walls of the tops of two groups of concave clamping frames 82 close to one side of the rectangular sliding frame 81, limiting cylinders 84 are respectively and fixedly arranged at the front end surface of the rectangular sliding frame 81 close to the two sides of the center, triangular rotating wheels 85 are arranged between the two groups of limiting cylinders 84, and the edges of the triangular rotating wheels 85 are of curved surface structures;
The triangular rotating wheel 85 is rotationally connected to the inner wall of the front end of the operation box 1 through a bearing, a driven gear 86 is arranged between the inner wall of the front end of the operation box 1 and the triangular rotating wheel 85 outside the bearing, a transmission belt 87 is sleeved between the driven gear 86 and the driving gear 29 together, a receiving plate 88 which is three quarters long relative to the rectangular sliding frame 81 is arranged inside the rectangular sliding frame 81, one end of the receiving plate 88 extends to the upper end of the rectangular sliding frame 81, one side of the top surface of the receiving plate 88 is positioned at the middle section of the rectangular sliding frame 81 and is internally provided with a screen 89, the concrete fragments slide down to the screen 89 through the inclination of the second guide plate 26, and the crushed concrete fragments are screened through the screen 89, so that the crushed concrete fragments with similar volumes are conveniently screened out and discharged and collected outwards through a central discharge hole 9;
The center of the front end and the rear end of the material receiving plate 88 are respectively fixedly provided with a limiting gear 810 through a rotating shaft, the limiting gears 810 respectively penetrate through limiting grooves 811 formed in the front inner wall and the rear inner wall of the rectangular sliding frame 81 and close to one side of the center, the top surface of each limiting gear 810 extends to the outside of each limiting groove 811, the driven gear 86 and the triangular rotating wheel 85 are driven to rotate simultaneously by being matched with the transmission belt 87, the triangular rotating wheel 85 rotates automatically to continuously push two groups of limiting cylinders 84 and force the rectangular sliding frame 81 to reciprocate so as to accelerate the screening of concrete residues on the surface of the screen 89, the limiting gears 810 move to the inside of the concave clamping frame 82 on one side along with the rectangular sliding frame 81, the protruding limiting gears 810 are meshed with the tooth grooves 83 so as to realize clockwise overturning of the material receiving plate 88, the concrete residues which are not screened are discharged through the discharge openings 9 on the side, and when the rectangular sliding frame 81 moves to the other side, the material receiving plate 88 is quickly corrected, the efficient screening of the concrete residues is realized, and a complete and efficient recovery process is realized.
According to the embodiment I to the embodiment III, separation of the reinforcing steel bars and concrete of the composite floor slab can be achieved under the condition that the reinforcing steel bars are not broken, the integrity of the reinforcing steel bars is protected to the greatest extent, meanwhile, the follow-up demagnetizing screening procedure is lightened, the separation efficiency of the concrete and the reinforcing steel bars is improved, meanwhile, the separated concrete blocks are further crushed by using a pressing roller 27 structure, the separated concrete blocks are automatically fed to a screening mechanism 8 for screening through double crushed concrete crushed aggregates, the screening mechanism 8 achieves reciprocating motion and intermittent overturning through driving power of the pressing roller 27, and the structure is different from a conventional screening mode, and achieves the effects of efficient screening and automatic material separation of the prepared aggregate to form a complete and efficient recycling process.
Example 4
A technology for recycling steel bars and aggregates in waste concrete crushing comprises the following steps:
S1: firstly, placing a single group of waste composite floor slabs on the upper end face of a first material guide plate 22 and extending to one end outside an operation box 1, starting a cylinder 3, pushing a press frame 5, an inclined rod 6 and a material pressing mechanism 7 to subside by using a push rod 4, enabling the inclined rod 6 to contact the first material guide plate 22 before the material pressing mechanism 7 contacts the first material guide plate 22 and pushing the first material guide plate 22 to move horizontally, forcing the end of the first material guide plate 22 with the composite floor slabs to move to the inside of the operation box 1, and moving the composite floor slabs to the center position of a feeding frame 2 before the material pressing mechanism 7 contacts the first material guide plate 22; when moving, the front and rear ends of the composite floor slab are automatically righted by using the locating piece 25, and the material pressing mechanism 7 is forced to face the composite floor slab;
S2: gradually extruding and crushing the composite floor slab by using a pressing mechanism 7;
S3: the extruded and crushed concrete blocks fall downwards through the long grooves 24, secondary rolling and crushing are carried out when the concrete blocks slide to the press rolls 27, and after rolling, powder slides downwards to the screen 89 through the inclined surface of the second guide plate 26 for high-efficiency screening;
s4: and finally, putting the fine-screened aggregate, cement, synthetic fiber, water reducer and water into a mixing container according to a proportion, and stirring and mixing to obtain the new concrete.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (1)
1. The technology for recycling the steel bars and the aggregates in the waste concrete crushing is realized by processing a steel bar and aggregate recycling device in the waste concrete crushing, and is characterized by comprising the following steps of:
S1: firstly, placing a single group of waste composite floor slabs on one end of a first material guide plate (22) which is positioned at the outer part of an operation box (1), starting an air cylinder (3), pushing a pressing frame (5), an inclined rod (6) and a pressing mechanism (7) to subside by using a push rod (4), enabling the inclined rod (6) to contact the first material guide plate (22) before the pressing mechanism (7) contacts the first material guide plate (22) and push the first material guide plate (22) to move horizontally, forcing the first material guide plate (22) to store the composite floor slab end to move into the operation box (1), and moving the composite floor slabs to the central position of the feeding frame (2) before the pressing mechanism (7) contacts the first material guide plate (22); when moving, the front and rear ends of the composite floor slab are automatically righted by using the locating piece (25), and the material pressing mechanism (7) is forced to face the composite floor slab;
S2: gradually extruding and crushing the laminated floor slab by using a pressing mechanism (7);
s3: the extruded and crushed concrete blocks fall downwards through the long grooves (24), secondary rolling and crushing are carried out when the concrete blocks slide to the press rolls (27), and after rolling is finished, powder slides downwards to the screen (89) through the inclined surface of the second material guide plate (26) for efficient screening;
S4: finally, putting the fine-screened aggregate, cement, synthetic fiber, water reducer and water into a mixing container according to a proportion, and stirring and mixing to obtain new concrete;
The feeding device comprises an operation box (1), wherein a feeding frame (2) is arranged at the middle section of the inner wall at one side of the operation box (1), an air cylinder (3) is arranged at the center of the inner wall at the top of the operation box (1), a push rod (4) is arranged at the bottom of the air cylinder (3), a pressing frame (5) is fixedly arranged at the bottom of the push rod (4), a diagonal rod (6) is hinged to the front end face and the rear end face of the pressing frame (5) close to one side of the middle section respectively, a pressing mechanism (7) is arranged at the other side of the bottom surface of the pressing frame (5), the bottom surface of the diagonal rod (6) is positioned at one side of the lower end of the pressing mechanism (7), a sieving mechanism (8) is arranged at the lower end of the feeding frame (2) inside the operation box (1), and discharge ports (9) are arranged at the center and two sides of the bottom of the operation box (1).
The feeding device comprises a feeding frame (2), a plurality of groups of long grooves (24) and a positioning piece (25), wherein one half of the feeding frame (2) extends to the outside of an operation box (1), the transverse cross section of the feeding frame (2) is narrow left and wide right, the front and rear inner walls of the feeding frame (2) are close to the top end and are respectively provided with an adaptive sliding groove (21), two groups of sliding grooves (21) are connected with a first guide plate (22) in a sliding manner, one end of the first guide plate (22) extends to the outside of the feeding frame (2), slots (23) are respectively formed in the front and rear ends of one end, which is positioned at the bottom of a diagonal rod (6), of the top surface of the first guide plate (22), one end, which is far away from the slots (23), of the upper end of the first guide plate (22) is equidistantly provided with the plurality of groups of long grooves (24), and positioning pieces (25) are arranged inside each group of long grooves (24);
The positioning piece (25) comprises two groups of inverted convex sliding drums (251), the two groups of inverted convex sliding drums (251) slide inside the long groove (24) and are positioned at the front end and the rear end respectively, the tops of the inverted convex sliding drums (251) extend to the outside of the long groove (24), conical sheets (252) are fixedly arranged at the centers of the tops of the inverted convex sliding drums (251), the tips of the front and rear adjacent groups of conical sheets (252) are opposite, the bottoms of the two groups of inverted convex sliding drums (251) extend to the long groove (24) and are fixedly provided with abutting pieces (253), one end, far away from the inverted convex sliding drums (251), of each abutting piece (253) is in a curved surface shape and abuts against the inner wall of the feeding frame (2), an inner groove (254) is formed in the upper end face of each abutting piece (253), the inner groove (254) is positioned close to the bottom surface of the first material guide plate (22) and fixedly connected with a sliding rod (255), and a second spring damper (256) is jointly arranged between the sliding rod (255) and the inner wall of the other side;
The material pressing mechanism (7) comprises a fixed frame (71), the fixed frame (71) is fixedly arranged at one end of the bottom surface of the pressing frame (5), guide rods (72) are respectively arranged at the front end and the rear end of the inside of the fixed frame (71), one ends of the two groups of guide rods (72) are fixedly connected with connecting rods (73) together, the front end and the rear end of the connecting rods (73) are slidably connected in transverse grooves (731) formed in one side, far away from an opening of a frame body, of the front inner wall and the rear inner wall of the fixed frame (71), the other ends of the two groups of guide rods (72) extend to the outside of the fixed frame (71), sleeves (74) are respectively and slidably connected in the middle sections of the two groups of the guide rods (72), a long rod I (75) is fixedly arranged between the two groups of the sleeves (74), and a long rod II (76) is fixedly arranged at one end penetrating the outside the fixed frame (71);
The center of the inner wall of the top of the fixed frame (71) is movably connected with a rotary table (77), a rotary shaft at the top of the rotary table (77) penetrates through the outside of the fixed frame (71) and is fixedly provided with a driving motor (78), rotary rods (79) are fixedly arranged at the front end and the rear end of the bottom surface of the rotary table (77) respectively, one ends, far away from each other, of two groups of rotary rods (79) are respectively hinged with a hinge rod (710), and one ends, far away from the rotary rods (79), of the two groups of hinge rods (710) are respectively hinged with the centers of the top surfaces of the connecting rod (73) and the long rod I (75);
The long rod I (75) and the long rod II (76) are provided with a plurality of groups of inserting cylinders (711) in an penetrating mode at equal intervals, each group of inserting cylinders (711) is internally provided with a conical rod (712) in a penetrating mode, a spring damping damper I (713) is arranged between one end of each conical rod (712) and the inner wall of each inserting cylinder (711), the other end of each conical rod (712) extends to the outside of each inserting cylinder (711), a chute (714) is arranged at one side of the outside of each inserting cylinder (711), one side of the bottom surface of each conical rod (712) is provided with a circular shaft (715), and the circular shafts (715) are connected inside the chute (714) in a sliding mode and are located at the lower end of each chute;
The feeding device is characterized in that a second inclined material guide plate (26) is arranged at the lower end of the first inclined material guide plate (22) in the feeding frame (2), one lower end of the second inclined material guide plate (26) vertically extends to the bottom of the feeding frame (2), a pressing roller (27) is arranged at the upper end of the lower end of the second inclined material guide plate (26) in the feeding frame (2), the front end and the rear end of the pressing roller (27) are rotatably connected with the inner wall of the feeding frame (2) through rotating shafts, a front rotating shaft of the pressing roller (27) extends to the outside of the feeding frame (2) and is provided with a double-shaft motor (28), and a driving gear (29) is fixedly arranged at the front rotating shaft of the double-shaft motor (28);
The sieving mechanism (8) comprises a rectangular sliding frame (81), the rectangular sliding frame (81) is arranged inside an operation box (1) and is positioned at the lower end of a feeding frame (2), the front end and the rear end of the rectangular sliding frame (81) are respectively and slidably connected inside a concave clamping frame (82) fixedly arranged at the front end and the rear end of the operation box (1) and positioned at two sides of the inner wall, a plurality of groups of tooth grooves (83) are formed in the inner wall of the top of the two groups of concave clamping frames (82) close to one side of the rectangular sliding frame (81), limit barrels (84) are respectively and fixedly arranged at the two sides, which are close to the center, of the front end surface of the rectangular sliding frame (81), triangular rotating wheels (85) are respectively and fixedly arranged at edges of the triangular rotating wheels (85), the triangular rotating wheels (85) are in a curved surface structure, driven gears (86) are arranged between the inner walls of the front end of the operation box (1) and the triangular rotating wheels (85), and a driving belt (87) is sleeved between the driven gears (86) and the driving gears (29);
The rectangular sliding frame (81) is internally provided with a receiving plate (88) which is three quarters long relative to the rectangular sliding frame (81), one end of the receiving plate (88) extends to the upper end of the rectangular sliding frame (81), a screen (89) is embedded and mounted at one side of the top surface of the receiving plate (88) and at the middle section of the rectangular sliding frame (81), limiting gears (810) are fixedly mounted at the centers of the front end and the rear end of the receiving plate (88) through rotating shafts respectively, the limiting gears (810) penetrate through limiting grooves (811) formed in the front inner wall and the rear inner wall of the rectangular sliding frame (81) close to the center, and the top surface of each limiting gear (810) extends to the outside of each limiting groove (811);
The extrusion crushing process in the step S2 specifically comprises the following steps: the composite floor slab is positioned between the first long rod (75) and the second long rod (76), a driving motor (78) is started to drive the turntable (77) and the rotating rod (79) to rotate anticlockwise, the two groups of hinge rods (710) push the connecting rod (73) and the first long rod (75) to move reversely respectively, the second long rod (76) and the first long rod (75) are close to each other, meanwhile, the edges of the two sides of the composite floor slab are extruded, concrete at the edges of the slab body is gradually disintegrated due to the drilling extrusion of a plurality of groups of conical rods (712), and the concrete is continuously screened out downwards through the long grooves (24) and separated from the steel bars;
After the composite floor slab is extruded for the first time, the integral length of the composite floor slab is shortened, at the moment, the rotary table (77) rotates clockwise, the long rod II (76) and the long rod I (75) are respectively far away from the composite floor slab to store force again, then the rotary table (77) rotates anticlockwise again, the reverse rotation amplitude is larger than the first rotation amplitude, the distance between the long rod I (75) and the long rod II (76) is more closely and the composite floor slab is extruded further, so that concrete of the composite floor slab is crushed gradually and gradually, the concrete is forced to be separated from steel bars, the concrete is led downwards along with the long grooves (24), and the separated steel bars stay on the surface of the guide plate I (22), so that the separation of the long rod II and the long rod I (75) is ensured, the steel bars are prevented from being damaged, and the subsequent demagnetizing process is reduced;
The secondary rolling and screening process in the step S3 specifically comprises the following steps: firstly, starting a double-shaft motor (28), simultaneously driving a press roller (27) and a driving gear (29) to rotate, and driving a driven gear (86) and a triangular rotating wheel (85) to rotate simultaneously by matching with a transmission belt (87), wherein the press roller (27) continuously extrudes concrete blocks to force waste concrete to be in a broken state; then, concrete fragments slide to screen cloth (89) through the slope of stock guide two (26) department and screen through screen cloth (89), not only break up the concrete slag that rolls, and conveniently discharge and collect the soil slag that wherein the volume is close outside with discharge outlet (9) at center, follow triangle runner (85) and rotate and constantly promote two sets of spacing section of thick bamboo (84), and force rectangle sliding frame (81) reciprocating motion, accelerate the concrete slag screening to screen cloth (89) surface, spacing gear (810) move to inside concave card frame (82) on one side along with rectangle sliding frame (81), protruding spacing gear (810) mesh with tooth's socket (83) and realize clockwise upset to material plate (88), discharge the concrete slag that fails to screen through bin outlet (9) of side, and when rectangle sliding frame (81) are removed to the opposite side, material plate (88) returns the normal fast, realize the high-efficient screening to the concrete slag, realize complete high-efficient technology.
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| JPH1176845A (en) * | 1997-09-01 | 1999-03-23 | Kajima Corp | Method of crushing concrete block and concrete block crusher |
| JP2005334844A (en) * | 2004-05-31 | 2005-12-08 | Akatsuki Kinzoku Kogyo:Kk | Crusher of concrete pillar |
| CN111701702A (en) * | 2020-06-24 | 2020-09-25 | 林超 | System and process for recycling and reusing construction solid waste and cement prefabricated members |
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