CN115928531A - Hot mixing equipment and process for recycled asphalt concrete - Google Patents

Abstract

The invention relates to the technical field of recycled asphalt concrete manufacturing, in particular to recycled asphalt concrete hot mixing equipment and a process, wherein a screening device, a feeding bin, a transferring device and a mixing bin are sequentially connected, an elastic piece pushes a measuring hopper to move upwards in an initial state for receiving screening materials screened by the screening device, the measuring hopper is influenced by gravity to slide downwards along the inner side wall of the feeding bin along with the increase of the bearing materials in the measuring hopper, a sliding transmission assembly is driven to compress the elastic piece, and an opening plate is pushed by the sliding transmission assembly until the measuring hopper slides downwards to a preset height, so that the opening plates on two sides are rotated and unfolded to seal the upper end of the feeding bin, and meanwhile, a puncturing assembly is triggered to puncture the bottom end of the measuring hopper for opening the bottom end of the measuring hopper, thereby realizing the function of automatic quantitative mixing, omitting the structure of controlling the feeding and discharging by a power part and a gate in the existing metering, and reducing energy consumption and cost.

Description

A kind of recycled asphalt concrete thermal mixing equipment and process

technical field

The invention relates to the technical field of manufacturing recycled asphalt concrete, in particular to a thermal mixing equipment and process for recycled asphalt concrete.

Background technique

Recycled asphalt concrete is the discarded old asphalt concrete, which is excavated, recycled, crushed, screened, and then mixed with some new aggregates and new asphalt in a certain proportion, and re-mixed to obtain an asphalt mixture that meets road performance requirements. , the existing regeneration equipment is mainly based on intermittent mixing plants. In the prior art, for example, a batch-type asphalt concrete mixing plant disclosed in Chinese patent document CN202111004604.X includes an aggregate feeding device and a powder feeding device , asphalt feeding device, drying device, first transfer device, screening device, premixing device, second transfer device and stirring and mixing device, hot aggregate and room temperature powder are pre-prepared through the premixing device after accurate measurement Mix to achieve thermal balance, and then put it into the mixing device together with asphalt for mixing to obtain asphalt concrete. However, the existing metering hopper usually uses power components such as cylinders to drive the gate in the hopper to open and close, and is used to quantitatively control the feed in the metering hopper. And discharge, in the batch continuous production process, the power part drives the gate to close the material for a long time, and then drives the gate to open the material after loading a certain amount of material. Obviously, the energy consumption is relatively high, which increases the production and preparation costs. Therefore, it is also It needs to be further optimized and improved.

Contents of the invention

In view of this, the object of the present invention is to provide a recycled asphalt concrete hot mixing equipment and process to solve the problem of high metered energy consumption in the existing recycled asphalt concrete hot mixing production.

Based on the above purpose, the present invention provides a thermal mixing equipment for recycled asphalt concrete, comprising a mixing silo, a transfer device for feeding materials into the mixing silo, a feed bin located on the transfer device, and a feeding bin for feeding The sieving device for the inner sieve also includes:

The opening and closing plate is rotatably connected to both sides of the feeding bin;

The metering hopper is set in the feeding bin. The side end of the metering bin is fixedly connected with a sliding transmission assembly. There is an elastic member connected between the bottom end of the sliding transmission assembly and the feeding bin. In the initial state, the elastic member pushes the metering hopper to move upwards. , used to accept the sieve material, as the material in the metering hopper increases, the metering hopper slides down along the inner wall of the feeding bin, and drives the sliding transmission assembly to compress the elastic member until the metering hopper slides down to the preset height , push the opening and closing plate through the sliding transmission assembly, so that the opening and closing plates on both sides are rotated and expanded to close the upper end of the feeding bin;

The piercing component is located at the bottom of the feeding bin. The bottom of the feeding bin is located on the side of the piercing component. There are several discharge holes. When the metering bucket slides down to the preset height, the piercing component is triggered to pierce in and out. Material hole, used to open the discharge hole.

Preferably, a chute is provided on the inner wall of the feed bin, and the sliding transmission assembly includes a slider slidingly arranged in the chute, the slider is fixed on both sides of the metering bucket, the top of the slider is fixedly connected to a support plate, and the top of the support plate is connected to There is an inversion edge, and the elastic piece is connected between the bottom end of the slide block and the inner bottom end of the chute.

Preferably, the top of the opening and closing plate is rotatably connected to the inner upper end of the chute, and the top of the opening and closing plate is connected with an eversion edge. When the metering bucket slides down to a preset height, the inversion edge pushes against the eversion edge to drive the opening and closing plates on both sides Turn to unfold.

Preferably, the support plate is designed in a rectangular shape, and the opening and closing plate is located on the adjacent side of the slider.

Preferably, a push rod is provided on the side of the bottom end of the chute, and the top of the push rod is connected with a sticky suction part. When the metering bucket slides down to a preset height, the push rod is triggered to extend, driving the sticky suction part to move up and adhere next to the slider.

Preferably, a storage cavity is provided at the upper end of the feed bin, and a storage port is provided at the connection between the storage cavity and the feed bin, the height of the storage port is higher than the height when the opening and closing plate is rotated and unfolded, and the storage cavity is provided with The material pushing part is used for pushing material towards the weighing hopper.

When the metering hopper discharges, it only relies on the inward-turning edge to push the outward-turning edge to maintain the rotation and expansion of the opening and closing plates on both sides, and the bearing capacity is limited. Therefore, when discharging, the redundant material at the top of the closed opening and closing plate reaches a certain height , automatically fall into the storage chamber along the storage port for temporary storage, avoiding excessive pressure on the stacking and opening and closing plates.

Preferably, there are several groups of feeding bins horizontally arranged, and the pushing parts are connected in series in sequence, and are connected in series with a main switch. When the height is high, trigger the main switch to close and connect, and trigger the corresponding sub-switch to close and connect at the same time.

Preferably, the leakage assembly includes a telescopic rod fixed on the bottom end of the feed bin, the top end of the telescopic rod is connected with a sharp part, and the bottom end of the metering bucket is provided with a number of leakage ports, and the leakage port is connected with a turning point for unidirectional rotation. When the metering bucket slides down to the preset height, the telescopic rod is triggered to stretch out, and penetrates into the material leakage port through the sharp part, driving the flap to rotate upwards and open.

Preferably, a detection part is provided at the inner bottom of the feeding bin for detecting the height of the bottom end of the weighing bucket.

The present invention also provides a recycled asphalt concrete hot mixing process, comprising the following steps:

a: In the initial state, the elastic member pushes the weighing hopper up to accept the screen material;

b: As the material in the metering hopper increases, the metering hopper slides down along the inner wall of the feeding bin, and drives the sliding transmission assembly to compress the elastic member until the metering hopper slides down to the preset height, through the sliding transmission The component pushes against the opening and closing plate, so that the opening and closing plates on both sides are rotated and unfolded, which is used to close the upper end of the feeding bin, and at the same time triggers the piercing component to penetrate the bottom of the metering hopper, which is used to open the bottom of the metering hopper, and the bottom of the metering hopper is discharged On the transfer device, the material is fed into the mixing bin through the transfer device for mixing;

c: When the metering hopper slides down to the preset height, it triggers the extension of the push rod at the same time, driving the sticky suction part to move up and stick to the side of the slider until the metering hopper overcomes the elastic force of the elastic part and automatically moves up and resets;

d: When the metering hopper discharges the material, after the material stacked on the top of the closed opening and closing plate reaches a certain height, it will automatically fall into the material storage cavity along the material storage port;

e: Each storage chamber is equipped with a pusher. When one of the feed bins discharges, the corresponding pusher in the side feed bin that has not yet started to discharge starts, and pushes the material into the corresponding metering hopper. , until the corresponding weighing hopper moves down to discharge the material.

Beneficial effects of the present invention: the elastic member pushes the measuring hopper to move up, and is used to accept the sieve material dropped by the sieving device. As the material in the measuring hopper increases, the measuring hopper is affected by gravity to move along the inner wall of the feeding bin. Slide down, and drive the sliding transmission assembly to compress the elastic member until the metering bucket slides down to the preset height, push the opening and closing plate through the sliding transmission assembly, so that the opening and closing plates on both sides rotate and expand, used for closing At the upper end of the feeding bin, trigger the piercing component to pierce the bottom of the metering hopper at the same time to open the bottom of the metering hopper, so that when the material in the metering hopper reaches a certain amount, the sliding drive assembly will automatically push the plywood to close the feeding At the same time, the piercing component is pierced into the bottom of the metering hopper, and the bottom of the metering hopper is opened to discharge the material, realizing the function of automatic quantitative batching and mixing, and eliminating the need for the structure of power components and gates in the existing metering to control the material in and out, reducing the energy consumption and cost.

Description of drawings

In order to more clearly illustrate the present invention or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are only the present invention. Invention, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative work.

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a side view structural representation of the material storage chamber of the present invention;

Fig. 3 is a schematic diagram of the internal structure of the feeding bin of the present invention;

Fig. 4 is the structure schematic diagram when the piercing assembly of the present invention penetrates into the bottom of the metering bucket, and the bottom of the metering bucket is opened to discharge;

Fig. 5 is the circuit diagram that pushes part of the present invention, main switch and sub-switch are connected;

Fig. 6 is a top view of the sliding transmission assembly of the present invention;

Fig. 7 is the bottom view of the sliding transmission assembly of the present invention;

Fig. 8 is a structural schematic diagram of the opening and closing plate of the present invention in its initial state;

Fig. 9 is a structural schematic diagram when the opening and closing plate of the present invention is rotated and deployed to close the upper end of the feed bin;

Fig. 10 is a schematic structural view of the bottom end of the feeding bin of the present invention;

Fig. 11 is a structural schematic diagram of the bottom end of the weighing bucket of the present invention;

Fig. 12 is a structural schematic diagram of the connection between the upper connection block, the lower connection block and the connection spring of the present invention;

Fig. 13 is a schematic structural view of the sticking part of the present invention when it adheres to the side of the connecting block;

Fig. 14 is a schematic structural view of the sticking part of the present invention when it adheres to the side of the lower connecting block.

Labeled in the figure:

1. Transfer device; 2. Feeding bin; 21. Chute; 3. Screening device; 4. Opening and closing plate; 41. Eversion edge; 5. Measuring bucket; , sliding transmission assembly; 61, slider; 611, upper connection block; 612, connection spring; 613, lower connection block; 62, support plate; 63, inversion edge; 7, elastic member; 81. Telescopic rod; 82. Spike part; 9. Discharge hole; 10. Push rod; 11. Adhesive suction part; 12. Storage cavity; 13. Storage port; 14. Pushing part; 15. Main switch ; 16, the sub-switch; 17, the detection unit.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific examples.

It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "Down", "Left", "Right" and so on are only used to indicate the relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of recycled asphalt concrete hot mixing equipment includes a mixing silo, a transfer device 1 for feeding materials into the mixing hopper, and a supply device located on the transfer device 1 The feed bin 2 and the sub-screening device 3 for sifting material in the feed bin 2 also include opening and closing plates 4 that are rotatably connected to both sides in the feed bin 2. The feed bin 2 is provided with a metering hopper 5, and the metering hopper The side end of the 5 is fixedly connected with a sliding transmission assembly 6, and an elastic member 7 is connected between the bottom end of the sliding transmission assembly 6 and the feeding bin 2. In the initial state, the elastic member 7 pushes the measuring bucket 5 to move upward for receiving the sieve. As the material in the metering hopper 5 increases, the metering hopper 5 slides down along the inner wall of the feed bin 2, and drives the sliding transmission assembly 6 to compress the elastic member 7 until the metering hopper 5 slides down to a preset height At the same time, push the opening and closing plate 4 through the sliding transmission assembly 6, so that the opening and closing plates 4 on both sides are rotated and expanded, and are used to close the upper end of the feed bin 2. The bottom end of the feed bin 2 is provided with a piercing assembly 8, and the feed bin 2 The bottom is located on the side of the piercing assembly 8 and has several discharge holes 9. When the metering bucket 5 slides down to a preset height, the piercing assembly 8 is triggered to pierce the discharge holes 9 to open the discharge holes. 9.

The present invention is based on the existing mixing silo, the transfer device 1 that feeds into the mixing hopper, the feeding bin 2 on the transfer device 1, and the screening device 3 that sieves the material into the feeding bin 2, That is, the sieving device 3, feeding bin 2, transfer device 1, and mixing bin are connected in sequence, and the aggregate is sieved and blended according to a certain ratio, and then enters the mixing bin for hot mixing production. In particular, it also includes rotating Connected to the opening and closing plates 4 on both sides of the feeding bin 2, the feeding bin 2 is provided with a metering bucket 5, and the side end of the metering bucket 5 is fixedly connected with a sliding transmission assembly 6, and the bottom end of the sliding transmission assembly 6 is connected to the feeding bin There is an elastic member 7 connected between the two. In the initial state, the elastic member 7 pushes the measuring bucket 5 to move up, and is used to accept the sieve material dropped by the sub-sieving device 3. As the material in the measuring bucket 5 increases, the measuring bucket 5 is Under the influence of gravity, it slides down along the inner wall of the feeding bin 2, and drives the sliding transmission assembly 6 to compress the elastic member 7 until the metering bucket 5 slides down to a preset height, and is pushed by the sliding transmission assembly 6 Opening and closing plate 4, so that opening and closing plate 4 on both sides rotates and unfolds, is used to close feed bin 2 upper ends, and feed bin 2 bottoms are provided with piercing assembly 8 simultaneously, as shown in Figure 10, feed bin 2 bottoms A number of discharge holes 9 are provided on the side of the piercing assembly 8. When the metering bucket 5 slides down to a preset height, the piercing assembly 8 is triggered to pierce the bottom of the metering bucket 5 at the same time to open the bottom of the metering bucket 5. end, so that when the material in the metering bucket 5 reaches a certain amount, the sliding transmission assembly 6 automatically pushes the plywood 4 to close the feeding, and at the same time, the piercing assembly 8 pierces the bottom of the metering bucket 5 to open the bottom of the metering bucket 5 End discharge realizes the function of automatic quantitative batching and mixing, and saves the structure of power components and gates in the existing metering to control the feeding and discharging, reducing energy consumption and cost.

In the embodiment of the present invention, as shown in Fig. 3, Fig. 4, Fig. 6 and Fig. 7, a chute 21 is opened in the side wall of the feed bin 2, and the sliding transmission assembly 6 includes a The slider 61 is fixed on both sides of the measuring bucket 5, which is beneficial to the stable vertical sliding of the weighing bucket 5 along the inner wall of the feed bin 2. In addition, the top of the slider 61 is fixedly connected to a support plate 62, and the top of the support plate 62 is connected to There is an inversion edge 63. Specifically, the inversion edge 63 can be integrally formed with the support plate 62. The inversion edge 63 extends vertically along the top of the support plate 62. The elastic member 7 is connected to the bottom end of the slider 61 and the slide groove 21. Between the bottom ends, specifically, elastic components such as springs can be used for the elastic member 7, so that in the initial state, the elastic member 7 pushes the measuring bucket 5 to move upwards to receive the sieve material that the sieving device 3 sieves and falls.

In the embodiment of the present invention, as shown in Fig. 8 and Fig. 9, the top of the opening and closing plate 4 is rotatably connected to the inner upper end of the chute 21, and the top of the opening and closing plate 4 is connected with an eversion edge 41, specifically, the eversion edge 41 can be connected with The opening and closing plate 4 is integrally formed, and the valgus edge 41 extends vertically along the top of the opening and closing plate 4. When the measuring bucket 5 slides down to a preset height, the inverting edge 63 pushes the valgus edge 41, and the measuring bucket 5 itself The action of gravity drives the opening and closing plates 4 on both sides to rotate and expand, so that when the metering bucket 5 slides down to a preset height, the opening and closing plates 4 that rotate and expand on both sides close the upper end of the feed bin 2 .

In an embodiment of the present invention, as shown in Fig. 6 and Fig. 7, the support plate 62 is designed in a rectangular shape, and the opening and closing plate 4 is located on the adjacent side of the slider 61, that is, the opening and closing plate 4 and the slider 61 are not located on the same side, so that The opening and closing plate 4 and the sliding block 61 will not interfere in the chute 21 , and the inward-turning edge 63 at the top of the rectangular support plate 62 can normally push the outward-turning edge 41 .

In the embodiment of the present invention, a push rod 10 is arranged on the side of the bottom end of the chute 21, and the top end of the push rod 10 is connected with a sticky suction part 11, wherein the push rod 10 can use existing telescopic cylinders, electric telescopic rods and other components , the sticking part 11 can adopt magnetic parts such as permanent magnets fixed on the movable end of the push rod 10. When the metering bucket 5 slides down to a preset height, the push rod 10 is triggered to stretch out, driving the sticking part 11 to move up. And adhere to the side of the slider 61, so that when the metering hopper 5 moves down to a fixed height for discharge, the stable adsorption of the sticky suction part 11 is used to automatically maintain the stable discharge of the metering hopper 5 until the discharge is completed, and the empty metering hopper 5. Its own weight plus the suction force of the sticking part 11 is enough to overcome the elastic force of the elastic member 7, so that the measuring bucket 5 can automatically move up and reset, wherein, for weighing the weighing bucket 5 with different target weights, the push rod can be adjusted adaptively 10, so that the sticking part 11 corresponds to absorbing the measuring buckets 5 at different heights.

In the embodiment of the present invention, as shown in Figure 2, the upper end of the feed bin 2 is provided with a storage cavity 12, and the connection between the storage cavity 12 and the feed bin 2 is provided with a storage port 13, and the storage port 13 The height is higher than the height when the opening and closing plate 4 is rotated and unfolded. The material storage chamber 12 is provided with a pusher 14. Specifically, the pusher 14 can use existing telescopic cylinders, electric telescopic rods and other parts to drive the push plate along the storage area. The inner bottom wall of the chamber 12 slides back and forth to push the material toward the metering hopper 5. When the metering hopper 5 discharges the material, only the inward-turning edge 63 pushes the outward-turning edge 41 to maintain the opening and closing plates 4 on both sides to rotate and expand. The bearing capacity is limited, so that when discharging, the redundant material at the upper end of the closed opening and closing plate 4 reaches a certain height, and then automatically falls into the storage cavity 12 along the material storage port 13 for temporary storage, so as to avoid material stacking and excessive bearing of the opening and closing plate 4 pressure.

In the embodiment of the present invention, as shown in FIG. 5 , several groups are arranged horizontally in the supply bin 2 , and the pushing parts 14 are connected in series successively, and are connected in series with a main switch 15 . There is a sub-switch 16 connected in parallel. When the metering bucket 5 slides down to the preset height, the main switch 15 is triggered to be closed and communicated, and the corresponding sub-switch 16 is triggered to be closed and communicated at the same time, so that multiple feeding bins 2 arranged in a row are fed at the same time. Metering, when the metering standard is reached in one of the feeding bins 2, the metering bucket 5 slides down to the preset height, and pushes the opening and closing plates 4 through the sliding transmission assembly 6, so that the opening and closing plates 4 on both sides are rotated and unfolded for Close the upper end of the feeding bin 2, and at the same time penetrate the bottom end of the metering bucket 5 through the piercing assembly 8, open the bottom end of the metering bucket 5 to discharge, and simultaneously trigger the main switch 15 and the corresponding sub-switches 16 to close and communicate, that is, each pushing part 14 The connected series circuit is turned on, and in the feed bin 2 that has been metered in place, because the parallel sub-switch 16 is turned on, the corresponding pushing part 14 will not start, and the opening and closing plate 4 and the storage chamber 12 are used for normal stacking. In the feed bin 2 that has not been measured in place on the side, since the parallel sub-switch 16 is not connected, the corresponding pusher 14 starts to push the material into the metering hopper 5, so as to help it quickly measure in place, which is beneficial to each feeder. The warehouse 2 measures in place as much as possible at the same time, so as to discharge and mix at the same time, and also digest the remaining material in the material storage chamber 12 at the same time.

Preferably, an indicator light is also connected in series on the parallel branch road of each pushing part 14, and the main switch 15 is switched on. 2 then turn off the lights until all the feeding bins 2 have completed the metering, then all the indicator lights are turned off.

In the embodiment of the present invention, as shown in Fig. 3 to Fig. 4, the puncture assembly 8 includes a telescopic rod 81 fixed on the bottom end of the feed bin 2, and the top end of the telescopic rod 81 is connected with a sharp part 82, as shown in Fig. 11 As shown in Figure 13, the bottom end of the metering bucket 5 is provided with a number of leakage ports 51, and the flaps 52 are connected to the one-way rotation of the leakage ports 51. When the metering bucket 5 slides down to a preset height, the telescopic rod is triggered 81 stretches out, pierces in the material leakage port 51 through the spiked part 82, and drives the flap 52 to rotate upwards to open, realizing automatic discharge.

In the embodiment of the present invention, as shown in Fig. 3 to Fig. 4, the inner bottom of the feeding bin 2 is provided with a detecting part 17, specifically, the detecting part 17 includes a detecting platform arranged at the inner side of the feeding bin 2, and a The distance sensor on the detection platform is used to detect the height of the bottom end of the measuring bucket 5 upwards.

As another embodiment of the present invention, as shown in FIG. 12 to FIG. 14 , the slider 61 includes an upper connecting block 611, a lower connecting block 613, and a connecting spring 612 connected between the upper connecting block 611 and the lower connecting block 613, The side end of the measuring bucket 5 is fixedly connected with the upper connection block 611, the elastic member 7 is in contact with the lower connection block 613, and the sticking part 11 can be selected from an electromagnet, and its magnetism is controlled by energizing and de-energizing the electromagnet. When moving down to a fixed height for discharging, the trigger push rod 10 is stretched out, driving the sticky suction part 11 to move up, and at the same time, the sticky suction part 11 is energized and adhered to the side of the upper connection block 611, and the stable suction of the sticky suction part 11 is used to automatically Maintain the stable discharge of the metering hopper 5. Considering the end of the discharge, some powder will remain at the bottom of the metering hopper 5. At this time, control the sticky suction part 11 to cut off the power first, and the upper connection block 611 is quickly moved away from the sticky part 7 under the push of the elastic member 7. The suction part 11, after being moved away, the sticky suction part 11 quickly resumes the power supply, and is used to absorb the lower connecting block 613 after moving up. The upper connecting block 611 and the measuring bucket 5 vibrate up and down under the action of their own inertia and the connecting spring 612. It is further beneficial to clean the discharge, and finally control the sticky suction part 11 to cut off the power, and the vacant measuring bucket 5 will automatically move up and reset.

The present invention also provides a recycled asphalt concrete hot mixing process, comprising the following steps:

a: In the initial state, the elastic member 7 pushes the measuring bucket 5 to move upwards to accept the screen material;

b: As the material in the metering hopper 5 increases, the metering hopper 5 slides down along the inner wall of the feed bin 2, and drives the sliding transmission assembly 6 to compress the elastic member 7 until the metering hopper 5 slides down to the preset height At the same time, push the opening and closing plate 4 through the sliding transmission assembly 6, so that the opening and closing plates 4 on both sides are rotated and expanded, and are used to close the upper end of the feed bin 2, and at the same time trigger the piercing assembly 8 to pierce the bottom of the metering bucket 5 for Open the bottom end of the metering hopper 5, and discharge the material from the bottom end of the metering hopper 5 to the transfer device 1, and feed the material into the mixing bin through the transfer device 1 for mixing;

c: When the measuring bucket 5 slides down to the preset height, the push rod 10 is triggered to extend at the same time, driving the sticking part 11 to move up and stick to the side of the slider 61 until the empty measuring bucket 5 overcomes the force of the elastic member 7 Elastic force, so that the measuring bucket 5 automatically moves up and resets;

d: When the metering hopper 5 discharges the material, after the upper end of the closed opening and closing plate 4 has reached a certain height, it will automatically fall into the material storage chamber 12 along the material storage port 13 for temporary storage;

e: Each storage cavity 12 is provided with a pusher 14, and when one of the feed bins 2 is discharged, the corresponding pusher 14 in the feed bin 2 that has not started to discharge on the side starts, and sends to the corresponding Push the material in the metering hopper 5 until the corresponding feeding bin 2 starts to discharge.

Those of ordinary skill in the art should understand that: the discussion of any of the above embodiments is exemplary only, and is not intended to imply that the scope of the present invention (including claims) is limited to these examples; under the idea of the present invention, the above embodiments or Combinations between technical features in different embodiments are also possible, steps may be carried out in any order, and there are many other variations of the different aspects of the invention as described above, which are not presented in detail for the sake of brevity.

The present invention is intended to embrace all such alternatives, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent replacements, improvements, etc. within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A regenerated asphalt concrete thermal mixing equipment, comprising a mixing silo, a transfer device (1) for feeding materials into the mixing silo, a feed bin (2) positioned on the transfer device (1) And the screening device (3) for screening material in the feed bin (2), is characterized in that, also includes: The opening and closing plate (4) is rotatably connected to both sides of the feed bin (2); The metering bucket (5) is arranged in the feed bin (2), the side end of the metering bucket (5) is fixedly connected with a sliding transmission assembly (6), and the bottom end of the sliding transmission assembly (6) is connected to An elastic piece (7) is connected between the feed bins (2). In the initial state, the elastic piece (7) pushes the weighing hopper (5) to move up to receive the sieve material. The material in the hopper (5) increases, and the metering hopper (5) slides down along the inner wall of the feed bin (2), and drives the sliding transmission assembly (6) to compress the elastic member (7 ), until the weighing bucket (5) slides down to a preset height, the sliding transmission assembly (6) pushes against the opening and closing plate (4), so that the opening and closing plates on both sides ( 4) Rotate and expand to close the upper end of the feed bin (2); The piercing assembly (8) is arranged at the bottom of the feeding bin (2), and the bottom of the feeding bin (2) is located on the side of the piercing assembly (8) and is provided with several discharge holes (9 ), when the metering hopper (5) slides down to a preset height, the piercing assembly (8) is triggered to pierce the discharge hole (9) for opening the discharge hole (9) . 2. The recycled asphalt concrete hot mixing equipment according to claim 1, characterized in that, the inner wall of the feed bin (2) is provided with a chute (21), and the sliding transmission assembly (6) It includes a slider (61) slidingly arranged in the chute (21), the slider (61) is fixed on both sides of the metering bucket (5), and the top of the slider (61) is fixedly connected with a support plate (62), the top of the support plate (62) is connected with an inversion edge (63), and the elastic member (7) is connected to the bottom end of the slider (61) and the inner bottom of the chute (21) between the ends. 3. A kind of recycled asphalt concrete hot mixing equipment according to claim 2, characterized in that the top end of the opening and closing plate (4) is rotatably connected to the inner upper end of the chute (21), and the opening and closing plate (4) ) is connected with an eversion edge (41), and when the metering bucket (5) slides down to a preset height, the inversion edge (63) pushes against the eversion edge (41), driving both sides The described opening and closing plate (4) rotates and unfolds. 4. A recycled asphalt concrete hot mixing equipment according to claim 2, characterized in that, the support plate (62) is designed to be rectangular, and the opening and closing plate (4) is located on the slider (61) adjacent side. 5. A kind of recycled asphalt concrete hot mixing equipment according to claim 2, characterized in that, a push rod (10) is arranged on the side of the bottom end of the chute (21), and the top end of the push rod (10) A sticky suction part (11) is connected, and when the metering bucket (5) slides down to a preset height, the push rod (10) is triggered to extend, driving the sticky suction part (11) to move up and stick Attach the slide block (61) to the side. 6. A kind of regenerative asphalt concrete thermal mixing equipment according to claim 1, characterized in that, the upper end of the feed bin (2) is provided with a storage cavity (12), and the storage cavity (12) is connected to The junction of the feed bin (2) is provided with a material storage port (13), the height of the material storage port (13) is higher than the height when the opening and closing plate (4) is rotated and unfolded, and the material storage cavity (12) is provided with a material pushing part (14) for pushing material towards the inside of the weighing bucket (5). 7. A kind of regenerative asphalt concrete hot mixing equipment according to claim 6, characterized in that, the feed bins (2) are horizontally arranged in several groups, and the pushing parts (14) are sequentially connected in series, It is connected in series with a main switch (15), and a sub-switch (16) is connected in parallel on each of the pushing parts (14), and when the weighing bucket (5) slides down to a preset height, trigger The main switch (15) is closed and communicated, and at the same time triggers the corresponding sub-switch (16) to be closed and communicated. 8. The regenerative asphalt concrete hot mixing equipment according to claim 1, characterized in that, the piercing assembly (8) includes a telescopic rod (81) fixed on the bottom end of the feeding bin (2) ), the top of the telescoping rod (81) is connected with a spike (82), and the bottom end of the metering bucket (5) is provided with several leakage ports (51), and the leakage port (51) is one-way A turning plate (52) is connected with rotation, and when the metering bucket (5) slides down to a preset height, the telescopic rod (81) is triggered to stretch out, piercing through the sharp part (82) into the In the material leakage port (51), drive the flap (52) to rotate upwards and open. 9. A kind of recycled asphalt concrete hot mixing equipment according to claim 1, characterized in that a detection part (17) is provided at the inner bottom of the feed bin (2) for detecting the measuring hopper (5 ) bottom height. 10. A regenerative asphalt concrete thermal mixing process, characterized in that, comprising the following steps: a: In the initial state, the elastic member (7) pushes the measuring bucket (5) to move upwards to accept the sieve material; b: As the material in the metering hopper (5) increases, the metering hopper (5) slides down along the inner wall of the feeding bin (2), and drives the sliding transmission assembly (6) to compress the elastic member (7) until the metering When the bucket (5) slides down to the preset height, the sliding transmission assembly (6) pushes the opening and closing plate (4), so that the opening and closing plates (4) on both sides are rotated and unfolded, which is used to close the feeding bin ( 2) the upper end, triggering the piercing assembly (8) to pierce the bottom of the metering bucket (5) at the same time, for opening the bottom of the metering bucket (5), the bottom of the metering bucket (5) is discharged to the transfer device (1), Feed and mix in the mixing bin through the transfer device (1); c: When the metering bucket (5) slides down to the preset height, the push rod (10) is triggered to extend at the same time, driving the sticky suction part (11) to move up and stick to the side of the slider (61) until the metering bucket (5) Overcoming the elastic force of the elastic member (7), it automatically moves up and resets; d: When the metering hopper (5) discharges the material, after the upper end of the closed opening and closing plate (4) has piled up to a certain height, it will automatically fall into the material storage chamber (12) along the material storage port (13); e: Each storage cavity (12) is equipped with a pusher (14). When one of the feed bins (2) is discharging, the corresponding pusher in the side feed bin (2) that has not yet started discharging The part (14) starts, and pushes the material into the corresponding metering hopper (5) until the corresponding metering hopper (5) moves down and discharges the material.

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