CN113828425A

CN113828425A - Recycled concrete aggregate screening system

Info

Publication number: CN113828425A
Application number: CN202111370515.7A
Authority: CN
Inventors: 陶良敬; 周花; 胡忠楠; 邵晨玥
Original assignee: Anhui Construction Engineering Group Bengbu Building Materials Co ltd; Anhui Construction Engineering Construction Materials Co ltd
Current assignee: Anhui Construction Engineering Group Bengbu Building Materials Co ltd; Anhui Construction Engineering Construction Materials Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2021-12-24
Anticipated expiration: 2041-11-18
Also published as: CN113828425B

Abstract

The application discloses recycled concrete aggregate screening system belongs to construction waste disposal engineering's field, it includes the base and rotate install in screening cylinder on the base is provided with hierarchical subassembly in the screening cylinder, hierarchical subassembly is including setting up the first filter sieve in the screening cylinder, set up the second filter sieve in first filter sieve and set up the third filter sieve in the second filter sieve, first filter sieve, second filter sieve and third filter sieve all with screening cylinder fixed connection, first filter sieve, the sieve mesh of second filter sieve and third filter sieve increases in proper order, be provided with on the base and be used for driving screening cylinder pivoted drive assembly, be provided with the pipeline assembly who is used for transporting aggregate after the screening under the base, the tip that the screening cylinder was kept away from to pipeline assembly is provided with the separable set who is used for separating fragment of brick and concrete. The method has the effect of improving the separation effect of the raw materials among different particle sizes.

Description

Recycled concrete aggregate screening system

Technical Field

The application relates to the technical field of construction waste treatment engineering, in particular to a recycled concrete aggregate screening system.

Background

With the continuous improvement of the attention degree of people on the living environment and the recyclable resource, the previous pit digging and burying of the construction waste is changed into recycling after crushing, in order to enable the recycled construction waste to generate higher economic benefit, a technician divides the crushed construction waste into a plurality of particle sizes, and further screens the construction waste in the particle sizes to separate the waste concrete blocks from the waste clay bricks.

In the related art, the chinese patent publication No. CN111892318A discloses a recycled concrete aggregate screening system, which includes a separation module and a screening module connected to the separation module by a pipeline; the separation module comprises a centrifugal box, a centrifugal driving motor arranged at the bottom of the centrifugal box and a turntable arranged at the upper side of the centrifugal driving motor, wherein the outer part of the centrifugal box is a cylinder, the inner part of the centrifugal box is provided with a conical centrifugal bin with the diameter gradually decreasing downwards, the top of the centrifugal box is provided with a feed inlet, and the side surface of the centrifugal box is provided with a plurality of discharge outlets; the screening module is including establishing the screening case in separator box one side, and the top fixedly connected with sieve of screening case, the below of sieve are equipped with a plurality of material receiving mouth, and the material receiving box is placed to the below of material receiving mouth.

In view of the above-mentioned related technologies, the inventor thinks that screening is performed on crushed aggregates by using a centrifugal box, when a large amount of raw materials enter the centrifugal box, the raw materials with large size and large weight easily block the raw materials with light weight from rising, so that the particle sizes of the raw materials entering the material receiving box are inconsistent, and the screening effect is poor.

Disclosure of Invention

In order to improve the separation effect between the different particle sizes of raw materials, this application provides a recycled concrete aggregate screening system.

The application provides a recycled concrete aggregate screening system adopts following technical scheme:

the utility model provides a recycled concrete aggregate screening system, include the base and rotate install in a screen cylinder on the base, be provided with hierarchical subassembly in the screen cylinder, hierarchical subassembly including set up in first filter sieve in the screen cylinder, set up in second filter sieve in the first filter sieve and set up in third filter sieve in the second filter sieve, first filter sieve, second filter sieve and third filter sieve all with screen cylinder fixed connection, the sieve mesh that first filter sieve, second filter sieve and third filter sieve increase in proper order, be provided with on the base and be used for the drive screen cylinder pivoted drive assembly, be provided with the pipeline assembly who is used for transporting screening back aggregate under the base, pipeline assembly keeps away from the tip of screen cylinder is provided with the separation subassembly that is used for separating fragment of brick and concrete.

By adopting the technical scheme, an operator drives the screening cylinder to rotate through the driving assembly, the screening cylinder rotates to enable the first filtering sieve, the second filtering sieve and the third filtering sieve to rotate, the operator puts unprocessed aggregate into the third filtering sieve, and the aggregate is separated from the aggregate by centrifugal force generated by the screening cylinder, so that the aggregate with the minimum particle size enters a gap between the screening cylinder and the first filter sieve, the aggregate with the second small particle size enters a gap between the first filter sieve and the second filter sieve, the aggregate with the third small particle size enters a gap between the second filter sieve and the third filter sieve, and the aggregate with the maximum particle size is left in the third filter sieve, aggregate after the separation is transported respectively to the separator assembly in through pipeline assembly, finally carries out the separation process of fragment of brick and concrete, further improves economic benefits, and the setting up of a screen cylinder, first filter sieve, second filter sieve and third filter sieve is favorable to improving the separation effect between the different particle diameters of raw materials.

Preferably, the drive assembly comprises a driven gear fixedly sleeved on the screening cylinder, a drive motor mounted on the base and a drive gear fixedly sleeved on an output shaft of the drive motor, and the drive gear is meshed with the driven gear.

Through adopting above-mentioned technical scheme, operating personnel starts driving motor, and driving motor's output shaft rotates and drives the driving gear and rotate, and the driving gear rotates and makes driven gear rotate, and driven gear rotates the rotation of screen drum.

Preferably, the bottom of the third filter sieve is communicated with a connecting pipe, and a first electromagnetic valve is arranged at the end part of the connecting pipe close to the first filter sieve; the pipeline assembly is including wearing to locate in the base be used for with the fixed pipe of cylinder butt joint, wear to locate in the fixed pipe be used for with first conveyer pipe that the filter sieve is linked together, wear to locate in the first conveyer pipe be used for with the second conveyer pipe that the second filter sieve is linked together, wear to locate in the second conveyer pipe be used for with the third conveyer pipe that the connecting pipe is linked together, the bottom of fixed pipe, first conveyer pipe, second conveyer pipe, third conveyer pipe all is provided with the auger, the auger with the separator subassembly butt joint.

Through adopting above-mentioned technical scheme, after the aggregate complete separation in the first filter sieve, operating personnel opens first solenoid valve to make the aggregate of the biggest particle size in the first filter sieve loop through connecting pipe, third conveyer pipe, auger and transport to the separator assembly in, the same reason, the setting up of fixed pipe, first conveyer pipe and second conveyer pipe makes things convenient for operating personnel to transport the aggregate of other particle sizes simultaneously, and then improves the transport speed of aggregate.

Preferably, the screening drum is slidably sleeved with a ring-shaped member, one side of the ring-shaped member is provided with a blower, an air pipe is communicated between the blower and the ring-shaped member, the other side of the ring-shaped member is provided with a collecting box, and a collecting pipe is communicated between the collecting member and the collecting box.

Through adopting above-mentioned technical scheme, the setting up of air-blower, tuber pipe and the piece of airing exhaust makes things convenient for operating personnel to blow to the screen drum in, and then blows in the collection piece with mixed dust and impurity in the aggregate, and the setting up of collecting box makes things convenient for dust and impurity in the operating personnel centralized processing aggregate.

Preferably, the first mounting panel of upper end fixedly connected with of first filter sieve, the upper surface of filter screen is offered and is used for holding the first mounting groove of first mounting panel, a plurality of locating pieces of fixedly connected with on the lateral wall of first mounting panel, offer on the inside wall of first mounting groove be used for with a plurality of constant head tanks of locating piece sliding fit, set up on the locating piece and be used for strengthening first mounting panel with the fixed subassembly that the filter screen is connected.

Through adopting above-mentioned technical scheme, the setting of locating piece and constant head tank makes things convenient for operating personnel to confirm the position of first mounting panel, and fixed subassembly be provided with and do benefit to and strengthen being connected between first mounting panel and the filter screen drum to prevent that first mounting panel from breaking away from the filter screen drum.

Preferably, fixed subassembly is including wearing to locate dwang, fixed cover in the locating piece are located the rotating gear of dwang one end and wearing to locate the first rack of locating piece, first rack with the locating piece cooperation of sliding, just first rack with the rotating gear cooperation of sliding, the dwang extends the tip fixedly connected with knob of locating piece, seted up on the interior terminal surface of constant head tank be used for with the complex inserting groove is slided to first rack.

Through adopting above-mentioned technical scheme, operating personnel rotates the knob, and the knob rotates and drives the dwang and rotate, and the dwang rotates and makes the running gear rotate, and the running gear rotates and makes first rack remove, and first rack removes and inserts the inserting groove in, and then the position of locking position piece prevents that first mounting panel from breaking away from the filter screen section of thick bamboo.

Preferably, a plurality of second mounting panels of fixedly connected with on the second filter sieve, offer a plurality of second mounting grooves that are used for holding the second mounting panel on the first mounting panel, the second mounting groove with the locating piece one-to-one, fixedly connected with guide block on the second mounting panel, offer on the inside wall of second mounting groove be used for with the guide block complex guide way that slides, fixed subassembly still include with running gear intermeshing's second rack, the second rack wear to locate in the guide block and with the guide block cooperation of sliding.

Through adopting above-mentioned technical scheme, the guide block does benefit to the position that operating personnel confirmed the second guide block with being provided with of guide way, and when operating personnel driven rotating gear rotated, the second rack removed along with rotating gear rotates, and the second rack inserts in the guide block and then locks the position of second mounting panel.

Preferably, a third mounting plate is fixedly connected to the third filter plate, a first limiting groove which is used for being matched with the second rack in a sliding manner is formed in the guide block, a connecting rod penetrates through the guide block, the connecting rod is matched with the first limiting groove in a sliding manner, the second rack is abutted against the connecting rod, and a reset assembly for resetting the connecting rod is arranged in the guide block; set up useful the third mounting groove that holds the third mounting panel on the second mounting panel, a plurality of reference columns of fixedly connected with on the third mounting panel, set up on the inside wall of third mounting groove be used for with a plurality of fixed slots of reference column sliding fit, set up on the reference column be used for with connecting rod grafting complex slot.

Through adopting above-mentioned technical scheme, when the second rack inserts the first spacing groove of guide block, the second rack promotes the connecting rod and removes, the connecting rod inserts in the reference column, and then the position of locking third mounting panel, when operating personnel drive rolling gear antiport, the connecting rod resets under reset assembly's effect, the connecting rod, reset assembly and fixed subassembly set up and make first mounting panel, the second mounting panel, demountable installation between third mounting panel and the filter tube, and then make things convenient for operating personnel to change first filter sieve, second filter sieve and third filter sieve.

In summary, the present application includes at least one of the following beneficial technical effects:

the separated aggregates are respectively conveyed into the separation assembly through the pipeline assembly, and finally the brick and concrete separation process is carried out, so that the economic benefit is further improved, and the arrangement of the screening cylinder, the first filter sieve, the second filter sieve and the third filter sieve is favorable for improving the separation effect of the raw materials among different particle sizes;

the blower, the air pipe and the air exhaust piece are arranged to facilitate an operator to blow air into the screening drum so as to blow dust and impurities mixed in the aggregate into the collection piece, and the collection box is arranged to facilitate the operator to intensively treat the dust and the impurities in the aggregate;

connecting rod, reset assembly and fixed subassembly set up and make demountable installation between first mounting panel, second mounting panel, third mounting panel and the filter screen, and then make things convenient for operating personnel to change first filter sieve, second filter sieve and third filter sieve.

Drawings

Fig. 1 is a schematic structural view of a recycled concrete aggregate screening system according to an embodiment of the present application.

Fig. 2 is a schematic view of the internal structure of the recycled concrete aggregate screening system according to the embodiment of the present application.

Fig. 3 is a schematic view of the internal structure of the screen cylinder according to the embodiment of the present application.

Fig. 4 is a schematic view of the internal structure of the fixing assembly according to the embodiment of the present application.

Fig. 5 is an enlarged schematic view at a in fig. 4.

Description of reference numerals:

1. a base; 11. an annular member; 111. a second support column; 12. a blower; 13. an air duct; 14. a collection box; 141. a discharge pipe; 142. a second solenoid valve; 143. a third support column; 15. a collection pipe; 16. a first support column; 2. a screening cylinder; 21. a first mounting groove; 22. positioning a groove; 23. inserting grooves; 24. positioning the bolt; 25. a filter plate; 3. a drive assembly; 31. a driven gear; 32. a drive motor; 33. a driving gear; 4. a grading component; 41. a first filter sieve; 411. a first mounting plate; 412. positioning blocks; 413. rotating the cavity; 414. a second mounting groove; 415. a guide groove; 416. a connecting pipe; 417. a first solenoid valve; 42. a second filter sieve; 421. a second mounting plate; 422. a guide block; 423. a connecting rod; 424. a first limit groove; 425. a second limit groove; 426. a third mounting groove; 427. fixing grooves; 43. a third filter sieve; 431. a third mounting plate; 432. a positioning column; 433. a slot; 434. a feed inlet; 5. a fixing assembly; 51. rotating the rod; 52. a rotating gear; 53. a first rack; 54. a second rack; 55. a knob; 6. a reset assembly; 61. a fixed block; 62. a spring; 7. a conduit assembly; 71. a fixed tube; 72. a first delivery pipe; 73. a second delivery pipe; 74. a third delivery pipe; 75. an outlet pipe; 8. a packing auger; 9. and (4) separating the components.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses recycled concrete aggregate screening system. Referring to fig. 1 and 2, the recycled concrete aggregate screening system includes a base 1 and a screen cylinder 2.

Referring to fig. 1 and 2, the base 1 is horizontally disposed, the cross section of the base 1 is circular, and the bottom of the base 1 is fixedly connected with a first support column 16. The screen cylinder 2 sets up in the upper surface of base 1, the vertical setting of screen cylinder 2, and screen cylinder 2 wears to locate in base 1 and rotates with base 1 to be connected. The base 1 is provided with a driving assembly 3 for driving the screening drum 2 to rotate, and the driving assembly 3 comprises a driven gear 31, a driving motor 32 and a driving gear 33. Driven gear 31 is located on the lateral wall of a screen section of thick bamboo 2, and driven gear 31 and screen section of thick bamboo 2 fixed connection. Driving motor 32 fixed mounting is on base 1, and driving motor 32's output shaft is vertical to be set up, and driving gear 33 cover is located on driving motor 32's output shaft, and driving gear 33 and driven gear 31 intermeshing. The operating personnel starts driving motor 32, and driving motor 32's output shaft rotates and makes driving gear 33 rotate, and driving gear 33 rotates and makes driven gear 31 rotate, and driven gear 31 rotates and then makes screening cylinder 2 rotate.

Referring to fig. 3 and 4, a classifying component 4 is arranged in the screen cylinder 2, the classifying component 4 includes a first filter screen 41, a second filter screen 42 and a third filter screen 43, the first filter screen 41, the second filter screen 42 and the third filter screen 43 are all in a circular cylinder shape, and the screen holes of the first filter screen 41, the second filter screen 42 and the third filter screen 43 are sequentially increased. The upper end of the first filter sieve 41 is fixedly connected with the first mounting plate 411, the upper end of the second filter sieve 42 is fixedly connected with the second mounting plate 421, the upper end of the third filter sieve 43 is fixedly connected with the third mounting plate 431, the upper surface of the third mounting plate 431 is provided with a feed inlet 434, and the cross section of the feed inlet 434 is circular.

Referring to fig. 4 and 5, a first mounting groove 21 is formed in the upper surface of the screening drum 2, the cross section of the first mounting groove 21 is circular, and the inner side wall of the first mounting groove 21 is in sliding fit with the first mounting plate 411. Two positioning blocks 412 are fixedly connected to the outer side wall of the first mounting plate 411, and the two positioning blocks 412 are symmetrically arranged about the axis of the first mounting plate 411. Two positioning grooves 22 are formed in the inner side wall of the first mounting groove 21, the two positioning grooves 22 correspond to the two positioning blocks 412 one by one, and the positioning blocks 412 are in sliding fit with the inner side wall of the positioning grooves 22.

Referring to fig. 4 and 5, the positioning block 412 is provided with a fixing assembly 5, and the fixing assembly 5 includes a rotating rod 51, a rotating gear 52, a first rack 53 and a second rack 54. The rotating rod 51 vertically penetrates through the positioning block 412, the rotating rod 51 is rotatably connected with the positioning block 412, a knob 55 is arranged at the end part of the rotating rod 51 extending out of the positioning block 412, and the knob 55 is fixedly connected with the positioning block 412. The positioning block 412 has a rotating cavity 413 formed therein, the rotating gear 52 is sleeved on the end of the rotating rod 51 extending to the rotating cavity 413, and the rotating gear 52 is fixedly connected to the rotating rod 51. The length directions of the first rack 53 and the second rack 54 are the same as the length direction of the positioning block 412, the first rack 53 and the second rack 54 are respectively disposed at two sides of the rotating gear 52, and the first rack 53 and the second rack 54 are respectively engaged with the rotating gear 52.

Referring to fig. 4 and 5, an insertion groove 23 is formed in the inner side wall of the positioning groove 22, the cross section of the insertion groove 23 is rectangular, and the inner side wall of the insertion groove 23 is in sliding fit with the first rack 53. The upper surface of the screening cylinder 2 is provided with a positioning bolt 24 in a penetrating way, the positioning bolt 24 penetrates into the insertion groove 23, and the positioning bolt 24 penetrates into the first rack 53 and is in threaded fit with the first rack 53.

Referring to fig. 4 and 5, a second mounting groove 414 for accommodating the second mounting plate 421 is formed in the first mounting plate 411, and the cross section of the second mounting groove 414 is circular. Two guide blocks 422 are fixedly connected to the outer side wall of the second mounting plate 421, and the two guide blocks 422 are symmetrically arranged about the axis of the second mounting plate 421. Two guide grooves 415 are formed in the inner side of the second mounting groove 414, the two guide grooves 415 correspond to the two guide blocks 422 one by one, and the guide blocks 422 are in sliding fit with the inner side walls of the guide grooves 415. Wear to be equipped with connecting rod 423 in the guide block 422, seted up first spacing groove 424 in the guide block 422, the cross section of first spacing groove 424 is the rectangle, and connecting rod 423 slides with the inside wall of first spacing groove 424 and cooperates, and second rack 54 slides with the inside wall of first spacing groove 424 and cooperates, and connecting rod 423 and the mutual butt of second rack 54.

Referring to fig. 4 and 5, a second limiting groove 425 is formed in the inner side wall of the first limiting groove 424, and the length direction of the second limiting groove 425 is identical to the length direction of the mounting rod. The connecting rod 423 is provided with a resetting component 6 for resetting the connecting rod 423, and the resetting component 6 comprises a fixed block 61 and a spring 62. The fixed block 61 and the connecting rod 423 are fixedly connected with the side face close to the second limiting groove 425, the fixed block 61 is matched with the inner side wall of the second limiting groove 425 in a sliding mode, the spring 62 is arranged in the second limiting groove 425, one end of the spring 62 is fixedly connected with the fixed block 61, and the other end of the spring 62 is fixedly connected with the inner end face of the second limiting groove 425.

Referring to fig. 4 and 5, a third mounting groove 426 for accommodating the third mounting plate 431 is formed in the second mounting plate 421, two positioning pillars 432 are fixedly connected to the outer side wall of the third mounting plate 431, two fixing grooves 427 are formed in the inner side wall of the third mounting groove 426, the two fixing grooves 427 are in one-to-one correspondence with the two guide blocks 422, and the fixing grooves 427 are communicated with the first limiting groove 424. The two fixing grooves 427 correspond to the two positioning posts 432 one by one, and the positioning posts 432 are matched with the inner side walls of the fixing grooves 427 in a sliding manner. The side of the positioning column 432 close to the connecting rod 423 is provided with a slot 433, and the connecting rod 423 is matched with the inner side wall of the slot 433 in a sliding manner.

Referring to fig. 4 and 5, an operator first aligns the positioning block 412 with the positioning groove 22, then the operator places the first mounting plate 411 into the first mounting groove 21, the operator aligns the guide block 422 with the guide groove 415, then the operator places the second mounting plate 421 into the second mounting groove 414, the operator aligns the positioning post 432 with the fixing groove 427, and then the operator places the third mounting plate 431 into the third mounting groove 426. An operator rotates the knob 55, the knob 55 rotates to enable the rotating rod 51 to rotate, the rotating rod 51 rotates to drive the rotating gear 52 to rotate, the rotating gear 52 rotates to enable the first rack 53 and the second rack 54 to move simultaneously, the first rack 53 moves and is inserted into the insertion groove 23, then the operator inserts the positioning bolt 24, the positioning bolt 24 is in threaded fit with the first rack 53, and the position of the first mounting plate 411 is fixed. The second rack 54 pushes the connecting rod 423 to move, the connecting rod 423 moves to drive the fixed block 61 to move, and the fixed block 61 moves to enable the spring 62 to be in a stretching state; the connection rod 423 is moved to be inserted into the insertion groove 433 of the positioning post 432, thereby locking the position of the third mounting plate 431. The arrangement of the connecting rod 423, the resetting component 6 and the fixing component 5 enables the first mounting plate 411, the second mounting plate 421, the third mounting plate 431 and the screening cylinder 2 to be detachably mounted, so that the first filtering sieve 41, the second filtering sieve 42 and the third filtering sieve 43 can be conveniently replaced by an operator.

Referring to fig. 1 and 2, a connecting pipe 416 is disposed at the bottom of the first filter screen 41, the first connecting pipe 416 is disposed vertically, the upper end of the connecting pipe 416 is communicated with the first filter screen 41, and a first solenoid valve 417 is disposed at the end of the connecting pipe 416 adjacent to the first filter screen 41. Recycled concrete aggregate screening system still includes pipeline assembly 7, and pipeline assembly 7 is including fixed pipe 71, first conveyer pipe 72, second conveyer pipe 73, third conveyer pipe 74, and fixed pipe 71 one end and base 1 fixed connection, and the fixed pipe 71 other end extends base 1 and slope setting, and the tip that fixed pipe 71 stretched into base 1 is linked together with sieve tube 2, and the internal diameter of fixed pipe 71 is unanimous with the internal diameter of sieve tube 2.

Referring to fig. 1 and 2, the first delivery pipe 72 is inserted into the fixed pipe 71, and the first delivery pipe 72 is fixedly connected with the fixed pipe 71, one end of the first delivery pipe 72 is inserted into the base 1 and is abutted against the first filter screen 41, and the other end of the first delivery pipe 72 extends out of the fixed pipe 71 and is obliquely arranged. The second conveying pipe 73 penetrates through the first conveying pipe 72, the axis of the second conveying pipe 73 is overlapped with the axis of the first conveying pipe 72, the end part, extending into the base 1, of the second conveying pipe 73 is communicated with the second filtering sieve 42, the inner diameter of the second conveying pipe 73 is consistent with that of the second filtering sieve 42, and the side faces, close to each other, of the second filtering sieve 42 and the second conveying pipe 73 are in sliding fit. The third delivery pipe 74 is arranged in the second delivery pipe 73 in a penetrating manner, the axis of the third delivery pipe 74 coincides with the axis of the second delivery pipe 73, the end part of the third delivery pipe 74 extending to the base 1 is communicated with the third filter sieve 43, the inner diameter of the third delivery pipe 74 is communicated with the inner diameter of the third filter sieve 43, and the mutually close side surfaces of the third filter sieve 43 and the third delivery pipe 74 are in sliding fit.

Referring to fig. 1, outlet pipes 75 are respectively arranged at the lowest positions of the fixed pipe 71, the first conveying pipe 72, the second conveying pipe 73 and the third conveying pipe 74, packing augers 8 are respectively arranged at the outlet pipes 75 of the fixed pipe 71, the first conveying pipe 72, the second conveying pipe 73 and the third conveying pipe 74, the packing augers 8 are obliquely arranged, a feed chute of the packing augers 8 is communicated with the outlet pipes 75, and a separation assembly 9 for separating bricks and concrete is arranged at a discharge chute of each packing auger 8.

Referring to fig. 1 and 2, the outer peripheral surface of one side of the screening cylinder 2 is slidably sleeved with a ring member 11, the ring member 11 is communicated with the screening cylinder 2 through a filtering plate 25, and the ring member 11 is fixedly connected with the base 1 through a second supporting column 111. A blower 12 is fixed on one side of the annular part 11, and the blower 12 is communicated with the annular part 11 through an air pipe 13; the collecting box 14 is arranged on the outer peripheral surface of the other side of the annular piece 11, the collecting box 14 is fixedly connected with the base 1 through a third supporting column 143, and the collecting box 14 is communicated with the annular piece 11 through a collecting pipe 15. The bottom of the collection tank 14 is provided with a discharge pipe 141, and the discharge pipe 141 is provided with a second solenoid valve 142.

The implementation principle of a recycled concrete aggregate screening system in the embodiment of the application is as follows: an operator drives the screening cylinder 2 to rotate through the driving assembly 3, the screening cylinder 2 rotates to enable the first filtering screen 41, the second filtering screen 42 and the third filtering screen 43 to rotate, the operator puts unprocessed aggregate into the third filtering screen 43, and the operator uses the centrifugal force generated by the screening cylinder 2, so that the aggregates with the minimum particle size enter a gap between the screen cylinder 2 and the first filter screen 41, the aggregates with the second small particle size enter a gap between the first filter screen 41 and the second filter screen 42, the aggregates with the third small particle size enter a gap between the second filter screen 42 and the third filter screen 43, the aggregates with the maximum particle size are left in the third filter screen 43, the aggregate after separation is transported to the separation assembly 9 through the pipeline assembly 7 respectively, and finally carries out the separation process of fragment of brick and concrete, further improves economic benefits, and the setting of screen cylinder 2, first filter sieve 41, second filter sieve 42 and third filter sieve 43 is favorable to improving the separation effect between the different particle sizes of raw materials.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a recycled concrete aggregate screening system, includes base (1) and rotate install in a screen cylinder (2) on base (1), its characterized in that: be provided with grading subassembly (4) in filter tube (2), grading subassembly (4) including set up in first filter sieve (41) in filter tube (2), set up in second filter sieve (42) in first filter sieve (41) and set up in third filter sieve (43) in second filter sieve (42), first filter sieve (41), second filter sieve (42) and third filter sieve (43) all with filter tube (2) fixed connection, the sieve mesh of first filter sieve (41), second filter sieve (42) and third filter sieve (43) increases in proper order, be provided with on base (1) and be used for the drive filter tube (2) pivoted drive assembly (3), be provided with pipeline components (7) that are used for transporting aggregate after the screening under base (1), pipeline components (7) keep away from filter tube (2)'s tip is provided with separation subassembly (9) that are used for separating brick and concrete .

2. The recycled concrete aggregate screening system of claim 1, wherein: drive assembly (3) are located including fixed cover driven gear (31) on filter tube (2), install in driving motor (32) and fixed cover on base (1) are located driving gear (33) on driving motor (32) output shaft, driving gear (33) with driven gear (31) intermeshing.

3. The recycled concrete aggregate screening system of claim 1, wherein: a connecting pipe (416) is communicated with the bottom of the third filter sieve (43), and a first electromagnetic valve (417) is arranged at the end part, close to the first filter sieve (41), of the connecting pipe (416); pipeline subassembly (7) including wear to locate in base (1) be used for with fixed pipe (71), the wear to locate of screening cylinder (2) butt joint in fixed pipe (71) in be used for with first conveyer pipe (72), the wear to locate that first filter sieve (41) are linked together be used for in first conveyer pipe (72) with second conveyer pipe (73), the wear to locate that second conveyer pipe (42) are linked together be used for in second conveyer pipe (73) with third conveyer pipe (74) that connecting pipe (416) are linked together, the bottom of fixed pipe (71), first conveyer pipe (72), second conveyer pipe (73), third conveyer pipe (74) all is provided with auger (8), auger (8) with separator subassembly (9) butt joint.

4. The recycled concrete aggregate screening system of claim 1, wherein: the screening drum (2) is sleeved with a ring-shaped piece (11) in a sliding mode, a blower (12) is arranged on one side of the ring-shaped piece (11), an air pipe (13) is communicated between the blower (12) and the ring-shaped piece (11), a collecting box (14) is arranged on the other side of the ring-shaped piece (11), and a collecting pipe (15) is communicated between the collecting piece and the collecting box (14).

5. The recycled concrete aggregate screening system of claim 1, wherein: the utility model discloses a filter sieve, including the first mounting panel of upper end fixedly connected with (411) of first filter sieve (41), the upper surface of filter screen (2) is offered and is used for holding first mounting groove (21) of first mounting panel (411), a plurality of locating pieces of fixedly connected with (412) on the lateral wall of first mounting panel (411), offer on the inside wall of first mounting groove (21) be used for with a plurality of constant head tanks of locating piece (412) sliding fit (22), set up on locating piece (412) and be used for strengthening first mounting panel (411) with fixed subassembly (5) that filter screen (2) are connected.

6. The recycled concrete aggregate screening system of claim 5, wherein: fixed subassembly (5) including wearing to locate dwang (51), fixed cover in locating piece (412) are located the rotating gear (52) of dwang (51) one end and wearing to locate the first rack (53) of locating piece (412), first rack (53) with locating piece (412) cooperation of sliding, just first rack (53) with rotating gear (52) cooperation of sliding, dwang (51) extend the tip fixedly connected with knob (55) of locating piece (412), seted up on the interior terminal surface of constant head tank (22) be used for with first rack (53) complex inserting groove (23) of sliding.

7. The recycled concrete aggregate screening system of claim 6, wherein: fixedly connected with a plurality of second mounting panels (421) on second filter sieve (42), offer a plurality of second mounting grooves (414) that are used for holding second mounting panel (421) on first mounting panel (411), second mounting groove (414) with locating piece (412) one-to-one, fixedly connected with guide block (422) on second mounting panel (421), offer on the inside wall of second mounting groove (414) be used for with guide block (422) sliding fit's guide way (415), fixed subassembly (5) still include with rotating gear (52) intermeshing's second rack (54), second rack (54) wear to locate in guide block (422) and with guide block (422) sliding fit.

8. The recycled concrete aggregate screening system of claim 7, wherein: a third mounting plate (431) is fixedly connected to the third filter plate (25), a first limiting groove (424) which is used for being matched with the second rack (54) in a sliding manner is arranged in the guide block (422), a connecting rod (423) penetrates through the guide block (422), the connecting rod (423) is matched with the first limiting groove (424) in a sliding manner, the second rack (54) is abutted against the connecting rod (423), and a resetting component (6) which is used for resetting the connecting rod (423) is arranged in the guide block (422); the utility model discloses a fixing device for connecting rod (423) of motor vehicle, including second mounting panel (421), set up on second mounting panel (421) and be used for holding third mounting panel (431) third mounting panel (426), a plurality of reference columns (432) of fixedly connected with on third mounting panel (431), set up on the inside wall of third mounting panel (426) be used for with a plurality of fixed slots (427) of reference column (432) sliding fit, set up on reference column (432) be used for with connecting rod (423) slot (433) of grafting complex.