CN218879753U - Pretreatment device for recycled concrete - Google Patents

Abstract

The utility model discloses a pretreatment device for recycled concrete, including the mixing box, the top fixedly connected with crushing tank of mixing box, the bottom fixed mounting of crushing tank has the unloading pipe, the unloading pipe is linked together with crushing tank, the bottom of unloading pipe extends to in the mixing box, the top fixedly connected with agitator tank of mixing box, the bottom fixed mounting of agitator tank has the grout pipe, the grout pipe is linked together with agitator tank, the bottom of grout pipe extends to in the mixing box, be provided with in the mixing box and be used for contacting the mixing mechanism who soaks recycled concrete and grout completely; the utility model relates to the technical field of recycled concrete; this processing apparatus before for recycled concrete can mix the soaking treatment with the recycled concrete after the breakage with the mud liquid through the compounding mechanism that sets up to can improve the void structure that regeneration was gathered materials to a certain extent, improve the quality that regeneration was gathered materials, the result of use is better.

Description

Pretreatment device for recycled concrete

technical field

The utility model relates to the technical field of recycled concrete, in particular to a pretreatment device for recycled concrete.

Background technique

Recycled concrete refers to the new concrete made by crushing, cleaning and grading waste concrete blocks, mixing them with gradation in a certain proportion, replacing part or all of natural aggregates such as sand and gravel, and then adding cement and water. The performance of recycled aggregates is worse than that of natural aggregates, which adversely affects many properties of recycled concrete. Therefore, the performance of recycled concrete can be improved by improving the performance of recycled aggregates. Generally, high-strength cement and water are used in a certain proportion. Grout. Soak and dry the recycled aggregates with slurry to improve the void structure of the recycled aggregates, thereby improving the quality of the recycled aggregates.

The publication number is CN215783643U, which discloses a pretreatment device for recycled concrete, including a housing, in which a feed hopper, a crushing mechanism, a hopper and a screening mechanism are sequentially arranged from top to bottom; the screening mechanism includes A hemispherical screen; the bottom of the housing is provided with a first outlet for discharging coarse aggregate, a second outlet for discharging fine aggregate, and an annular groove for assembling the screen, and The first discharge port and the second discharge port are respectively located on the outside and inside of the annular groove; the top of the guide hopper is in sealing connection with the inner wall of the housing, and the bottom is located directly above the middle of the screen. The utility model has the advantages of simple structure, good practicability, high work efficiency, low equipment cost and convenient maintenance and repair. The waste concrete is crushed through the crushing mechanism, and the crushed waste concrete is screened into coarse aggregate through the screening mechanism. And fine aggregate, the screening effect is good, the separation efficiency and separation rate of coarse aggregate and fine aggregate are high.

However, this processing device has the following disadvantages. When the recycled concrete is crushed and reused, the performance of the broken aggregate is often poorer than that of the natural aggregate, resulting in poor performance and low strength of the concrete during use, which affects the use effect. .

For this reason, the utility model provides a pretreatment device for recycled concrete to solve the above problems.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides a pretreatment device for recycled concrete, which solves the above problems.

In order to achieve the above purpose, the utility model is achieved through the following technical solutions: a pretreatment device for recycled concrete, comprising a mixing box, the top of the mixing box is fixedly connected with a crushing tank, and the bottom of the crushing tank is fixedly installed There is a feeding pipe, the feeding pipe communicates with the crushing tank, the bottom end of the feeding pipe extends into the mixing box, the top of the mixing box is fixedly connected with a stirring tank, and the bottom of the mixing tank A lowering pipe is fixedly installed, and the said lowering pipe is connected with the mixing tank, and the bottom end of the said lowering pipe extends into the mixing box, and the mixing box is provided with a device for completely contacting the recycled concrete with the cement slurry. Soaked mixing mechanism;

The mixing mechanism includes a baffle fixedly installed in the mixing box, and two symmetrically distributed circulation ports are opened on the baffle, and two augers are rotatably installed on one side of the inner wall of the mixing box. The two augers are distributed on both sides of the partition, and the helical directions of the two augers are opposite.

Preferably, one end of the auger rotates and extends out of the mixing box, a first motor is fixedly installed on one side of the outer wall of the mixing box, and the output shaft of the first motor is fixedly connected to one end of the corresponding auger, The fixed sleeve on the auger is provided with a synchronous wheel, and the same belt is wound between the two synchronous wheels, and the first motor, the synchronous wheel and the belt are used together to drive the two augers to rotate synchronously.

Preferably, a second motor is fixedly installed on one side of the outer wall of the crushing tank, the output shaft of the second motor is fixedly connected to a rotating shaft, one end of the rotating shaft rotates and extends into the crushing tank, and the rotating shaft is fixedly sleeved There are a plurality of crushing rollers, and the inner wall of the crushing tank is welded with a plurality of crushing cutters, and the second motor, the rotating shaft, the crushing rollers and the crushing cutters are used together to facilitate the crushing of concrete agglomerates.

Preferably, the top of the crushing tank is welded with a discharge pipe, and the discharge pipe communicates with the inside of the crushing tank, and the inner walls on both sides of the discharge pipe are welded with slanting plates. The board is used together to facilitate adding recycled concrete to the crushing tank, and at the same time, it can prevent the recycled concrete from smashing the crushing cutter.

Preferably, the top of the stirring tank is rotated and installed with two rotating rods, and a plurality of stirring paddles are fixedly sleeved on the rotating rods, and the top of the stirring tank is installed with two discharge hoppers. Rods and paddles are convenient for stirring the cement and water in the mixing tank to make them evenly mixed.

Preferably, the top of the stirring tank is welded with a protective cover, the top end of the rotating rod extends into the protective cover, the rotating rod is fixedly sleeved with a driven gear, and the top of the stirring tank is rotatably installed with a drive rod , the fixed sleeve on the driving rod is provided with a driving gear, and the driving gear is meshed with two driven gears, and a third motor is fixedly installed on the top inner wall of the protective cover, and the output shaft of the third motor is connected to the driving gear. The top of the rod is fixedly connected, and the combination of the provided protective cover, the driven gear, the driving rod, the driving gear and the third motor can conveniently drive the two rotating rods to rotate synchronously.

Preferably, a first on-off valve is fixedly installed on the feeding pipe, a second on-off valve is fixedly installed on the lowering pipe, a discharge pipe is installed through the bottom of the mixing tank, and the discharge pipe The third on-off valve is fixedly installed on the top, and the combination of the first on-off valve, the second on-off valve, the discharge pipe and the third on-off valve can facilitate the flow of recycled concrete and mud, and is convenient to use.

Preferably, a PLC controller is fixedly installed on one side of the outer wall of the mixing box, and the PLC controller is connected to the first motor, the second motor, the third motor, the first on-off valve, the second on-off valve and the third switch The valves are all electrically connected, and the bottom of the mixing box is welded with a plurality of legs, and the PLC controller is provided to facilitate the control of related electrical devices, and the operation is simpler.

Beneficial effect

The utility model provides a pretreatment device for recycled concrete. Compared with the prior art, it has the following beneficial effects:

(1) The pretreatment device for recycled concrete can mix and soak the crushed recycled concrete and mud liquid through the provided mixing mechanism, so that the void structure of the recycled aggregate can be improved to a certain extent, and the recycled aggregate can be improved. The quality of the material is better.

(2) The pretreatment device for recycled concrete can crush the recycled concrete quickly through the combination of the crushing roller and the crushing cutter, avoiding the agglomeration of the recycled concrete, and at the same time, the mud can be fully stirred by the stirring paddle , so that it is evenly distributed and the soaking effect is better.

Description of drawings

Fig. 1 is a perspective view of the external structure of the utility model;

Fig. 2 is the front view sectional structure schematic diagram of the utility model;

Fig. 3 is the structural representation of mixing mechanism in the utility model;

Fig. 4 is the assembly diagram of rotating bar, driven gear, driving bar and driving gear in the utility model.

In the figure: 1. Mixing box; 2. Crushing tank; 3. Feeding pipe; 4. Stirring tank; 5. Sizing pipe; 6. Partition plate; 7. Circulation port; One motor; 10, synchronous wheel; 11, belt; 12, second motor; 13, rotating shaft; 14, crushing roller; 15, crushing cutter; 19. Stirring paddle; 20. Hopper; 21. Protective cover; 22. Driven gear; 23. Drive rod; 24. Drive gear; 25. Third motor; 26. First switch valve; 27. Second switch valve ; 28, discharge pipe; 29, the third switch valve; 30, PLC controller; 31, legs.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Embodiment one:

Referring to Fig. 2 and Fig. 3, a pretreatment device for recycled concrete comprises a mixing box 1, the top of the mixing box 1 is fixedly connected with a pulverizing tank 2, and the bottom of the pulverizing tank 2 is fixedly equipped with a feeding pipe 3, and The feeding pipe 3 is connected with the crushing tank 2, the bottom of the feeding pipe 3 extends into the mixing tank 1, the top of the mixing tank 1 is fixedly connected with the mixing tank 4, and the bottom of the mixing tank 4 is fixedly installed with the lowering tube 5 , the lower slurry pipe 5 communicates with the mixing tank 4, the bottom end of the lower slurry pipe 5 extends into the mixing box 1, and the mixing box 1 is provided with a mixing mechanism for completely contacting and soaking the recycled concrete and the cement slurry;

The mixing mechanism includes a partition 6 fixedly installed in the mixing box 1. The partition 6 divides the inner space of the mixing box 1 into two parts. The partition 6 is provided with two symmetrically distributed circulation ports 7, and the mixing The inner wall of one side of the box 1 is rotated and installed with two augers 8, and the two augers 8 are distributed on both sides of the partition 6, and the helical directions of the two augers 8 are opposite; the first switch is fixedly installed on the feeding pipe 3 Valve 26, the second on-off valve 27 is fixedly installed on the lower slurry pipe 5, the bottom of the mixing box 1 is penetrated with a discharge pipe 28, and the third on-off valve 29 is fixedly installed on the discharge pipe 28; A PLC controller 30 is fixedly installed on one side of the outer wall, and the PLC controller 30 and the first motor 9, the second motor 12, the third motor 25, the first switch valve 26, the second switch valve 27 and the third switch valve 29 are all For electrical connection, a plurality of legs 31 are welded on the bottom of the mixing box 1 .

Embodiment two:

Referring to Figures 1 to 4, this embodiment provides a technical solution on the basis of Embodiment 1: one end of the auger 8 rotates and extends to the outside of the mixing box 1, and one side of the outer wall of the mixing box 1 is fixedly installed with The first motor 9, the output shaft of the first motor 9 is fixedly connected with one end of the corresponding auger 8, the auger 8 is fixedly set with a synchronous wheel 10, and the same belt 11 is wound between the two synchronous wheels 10; A second motor 12 is fixedly installed on one side of the outer wall of the second motor 12, and the output shaft of the second motor 12 is fixedly connected with a rotating shaft 13, and one end of the rotating shaft 13 rotates and extends into the crushing tank 2, and a plurality of crushing rollers are fixedly sleeved on the rotating shaft 13 14. The inner wall of the crushing tank 2 is welded with a plurality of crushing cutters 15, and the crushing rollers 14 are close to the crushing cutters 15 to crush larger concrete agglomerates; the top of the crushing tank 2 is welded with a discharge pipe 16, which The material pipe 16 is connected with the inside of the crushing tank 2, and the inner walls on both sides of the material discharge pipe 16 are welded with inclined plates 17; A stirring paddle 19, the stirring paddles 19 on the two rotating rods 18 are alternately distributed, and the top of the stirring tank 4 is penetrated with two discharge hoppers 20; the top of the stirring tank 4 is welded with a protective cover 21, and the top of the rotating rod 18 extends to In the protective cover 21, the fixed sleeve on the rotating rod 18 is provided with a driven gear 22, the top of the stirring tank 4 is rotated and installed with a driving rod 23, and the fixed sleeve on the driving rod 23 is provided with a driving gear 24, and the driving gear 24 is connected with two driven gears. The gears 22 are all meshed, and the top inner wall of the protective cover 21 is fixedly installed with a third motor 25 , and the output shaft of the third motor 25 is fixedly connected with the top end of the driving rod 23 .

At the same time, the content not described in detail in this specification belongs to the prior art known to those skilled in the art.

Working principle: when in use, pour an appropriate amount of recycled concrete into the pouring pipe 16 so that it can roll into the crushing tank 2 through the inclined plate 17. At this time, the second motor 12 is started by the PLC controller 30, and the second motor 12 drives The rotating shaft 13 rotates, and the rotating shaft 13 drives the crushing roller 14 to rotate, and the recycled concrete agglomeration in the crushing tank 2 can be crushed by the crushing roller 14 and the crushing cutter 15, and it is crushed into small fragments to facilitate subsequent processing; Pour an appropriate amount of high-strength cement and water into the mixing tank 4 in proportion, and start the third motor 25 through the PLC controller 30, the third motor 25 drives the driving rod 23 to rotate, and the driving rod 23 drives the driving gear 24 to rotate, and the driving The gear 24 drives the two driven gears 22 meshed with it to rotate, the driven gear 22 drives the rotating rod 18 to rotate, the rotating rod 18 drives the stirring paddle 19 to rotate, and the stirring paddle 19 stirs the mixture of cement and water to make it evenly mixed. After the mixing is completed, first open the first on-off valve 26, pour the recycled concrete into the mixing box 1 through the feeding pipe 3, and start the first motor 9 at the same time, the first motor 9 drives the connected auger 8 to rotate, and at the same time passes the synchronous wheel 10 and the belt 11 keep the two augers 8 rotating synchronously. The auger 8 moves on one side of the partition 6 with recycled concrete fragments, and at the same time opens the second switch valve 27 to pass the mud in the mixing tank 4 through the lowering The pipe 5 is poured into the mixing box 1 to make it contact with the moving fragments, and the fragments continue to move and will enter the other side of the partition 6 through the circulation port 7, and at the same time, the auger 8 on the other side rotates in the opposite direction , so that the fragments and mud move in the direction to form a circulation effect, which can make the fragments and mud soak more thoroughly, and finally open the third on-off valve 29 to discharge it from the discharge pipe 28.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (8)

1. Pretreatment device for recycled concrete, comprising a mixing box (1), characterized in that: the top of the mixing box (1) is fixedly connected with a pulverizing tank (2), and the bottom of the pulverizing tank (2) is fixed A feeding pipe (3) is installed, and the feeding pipe (3) communicates with the crushing tank (2), and the bottom end of the feeding pipe (3) extends into the mixing box (1), and the mixing The top of the material box (1) is fixedly connected with a stirring tank (4), and the bottom of the stirring tank (4) is fixedly equipped with a sizing pipe (5), and the sizing pipe (5) is connected with the stirring tank (4) In general, the bottom end of the lower slurry pipe (5) extends into the mixing box (1), and the mixing box (1) is provided with a mixing mechanism for fully contacting and soaking the recycled concrete and the cement slurry; The mixing mechanism includes a partition (6) fixedly installed in the mixing box (1), and two symmetrically distributed circulation ports (7) are opened on the partition (6), and the mixing box The inner wall of one side of (1) is rotatably equipped with two augers (8), and the two augers (8) are distributed on both sides of the partition (6). on the contrary. 2. A pretreatment device for recycled concrete according to claim 1, characterized in that: one end of the auger (8) rotates and extends outside the mixing box (1), and the mixing box (1) A first motor (9) is fixedly installed on one side of the outer wall, and the output shaft of the first motor (9) is fixedly connected to one end of the corresponding auger (8), and the fixed sleeve on the auger (8) is provided with a synchronous wheel (10), and the same belt (11) is wound between the two synchronous wheels (10). 3. A pretreatment device for recycled concrete according to claim 2, characterized in that: a second motor (12) is fixedly installed on one side of the crushing tank (2), and the second motor (12) ) is fixedly connected with a rotating shaft (13), one end of the rotating shaft (13) rotates and extends into the crushing tank (2), and a plurality of crushing rollers (14) are fixedly sleeved on the rotating shaft (13), The inner wall of the crushing tank (2) is welded with a plurality of crushing cutters (15). 4. A pretreatment device for recycled concrete according to claim 1, characterized in that: the top of the crushing tank (2) is welded with a discharge pipe (16), and the discharge pipe (16) is connected to the pulverized The inside of the tank (2) is connected, and the inner walls on both sides of the pouring pipe (16) are welded with inclined plates (17). 5. A pretreatment device for recycled concrete according to claim 1, characterized in that: the top of the mixing tank (4) is rotated through and installed with two rotating rods (18), and the rotating rods (18) The upper fixing sleeve is provided with a plurality of stirring paddles (19), and two discharge hoppers (20) are installed through the top of the stirring tank (4). 6. A pretreatment device for recycled concrete according to claim 5, characterized in that: the top of the mixing tank (4) is welded with a protective cover (21), and the top of the rotating rod (18) extends to In the protective cover (21), the fixed sleeve on the rotating rod (18) is provided with a driven gear (22), and the top of the stirring tank (4) is rotatably equipped with a driving rod (23), and the driving rod (23 ) upper fixed sleeve is provided with a driving gear (24), the driving gear (24) is meshed with two driven gears (22), and the top inner wall of the protective cover (21) is fixedly installed with a third motor (25) , the output shaft of the third motor (25) is fixedly connected to the top end of the drive rod (23). 7. The pre-treatment device for recycled concrete according to claim 1, characterized in that: the first on-off valve (26) is fixedly installed on the feeding pipe (3), and the feeding pipe (5) A second on-off valve (27) is fixedly installed on the top, a discharge pipe (28) is installed through the bottom of the mixing box (1), and a third on-off valve (29) is fixedly installed on the discharge pipe (28). ). 8. A kind of regenerated concrete pretreatment device according to claim 1, is characterized in that: the one side outer wall of described mixing box (1) is fixedly equipped with PLC controller (30), and described PLC controller ( 30) and the first motor (9), the second motor (12), the third motor (25), the first on-off valve (26), the second on-off valve (27) and the third on-off valve (29) are all electric Sexual connection, the bottom of the mixing box (1) is welded with a plurality of legs (31).

Images