Composite fly ash dust recycling device

Abstract

The invention discloses a composite fly ash dust recycling device, and relates to the field of dust recycling, the composite fly ash dust recycling device comprises a straight rod, a telescopic rod, a bottom plate, an inclined plane block, an inclined plate, a rolling rod, a push plate and a rolling rod, one end of the straight rod is fixedly installed at the bottom of an electric fan, one end of the telescopic rod is fixedly installed at the bottom of the straight rod, and the other end of the telescopic rod is fixedly installed at the bottom of the push plate. The bottom plate is fixedly mounted at the other end of the telescopic rod, the inclined plane block is slidably mounted on the inner wall of the pipeline, the inclined plate is slidably mounted on the inner wall of the pipeline, the rolling rod is rotatably mounted on the inner wall of the pipeline, and dust above the bottom plate is cleaned; a special dust cleaning device and an independent power source do not need to be additionally arranged, the space utilization rate and the overall operation efficiency of the equipment are improved, and the equipment structure is more compact and simpler.

Description

Technical Field

[0001] The invention relates to the field of dust recovery, in particular to a composite fly ash dust recovery and reuse device. Background Art

[0002] The dust recovery and reuse device of composite fly ash is a device for recovering dust, and its purpose is to reduce the contact of workers while recycling the dust.

[0003] The patent with patent announcement number CN208660650U involves setting the inlet at the lower side of the shell so that the vacuum cleaner can suck external dust into the shell, and part of the sucked dust falls into the dust collector, and part is attached to several vertically arranged filter plates, which greatly improves the dust collection effect and air purification effect of the dust recovery and reuse device; in addition, the oscillation plate can shake off the powder on the filter plate, ensuring the continuous use of the dust recovery and reuse device, and the dust is sent to the dust bin through the micro powder collector, the unloading hopper, the screw conveyor, and the first dust recovery bucket elevator to realize dust recovery and reuse, which protects the environment and has good economic and social benefits. In addition, the new dust recovery and reuse device provided by the patent has a simple structure and a reasonable design. While protecting the environment, it can also reduce costs.

[0004] In the above patent, the oscillating plate can shake off the powder on the filter plate, ensuring the continuous use of the dust recovery and reuse device, and the dust is sent to the dust bin through the micro-powder collector, the discharge hopper, the screw conveyor, and the first dust recovery bucket elevator to realize dust recovery and reuse, thereby protecting the environment and having good economic and social benefits. However, there are still problems. The particles on the filter plate are contaminated by wind force, and the degree of adhesion of the particles may make it difficult to shake off the particles on the filter plate, which can easily cause the filter plate to be blocked, greatly affecting the filtering effect of the filter plate and the work intensity of the staff in replacing the filter plate. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a dust recovery and reuse device for composite fly ash, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A dust recovery and reuse device for composite fly ash, comprising a pipeline, an electric fan is provided on the inner wall of the pipeline, an electrostatic device is provided on the inner wall of the pipeline, and a cleaning mechanism is provided on the inner wall of the pipeline; Wherein, the cleaning mechanism comprises a straight rod, a telescopic rod, a bottom plate, an inclined block, an inclined plate, a rolling rod, a push plate, a rolling rod and an elastic telescopic plate, one end of the straight rod is fixedly mounted on the bottom of the electric fan, one end of the telescopic rod is fixedly mounted on the bottom of the straight rod, the bottom plate is fixedly mounted on the other end of the telescopic rod, the inclined block is slidably mounted on the inner wall of the pipe, the inclined plate is slidably mounted on the inner wall of the pipe, the rolling rod is rotatably mounted on the inner wall of the pipe, the rolling rod is rotatably mounted on the inner wall of the pipe, the rolling rod and the rolling rod are driven by a belt, the push plate is slidably mounted on the top of the bottom plate, the fixed end of the elastic telescopic plate is fixedly mounted on the bottom of the inner wall of the pipe, and the free end of the elastic telescopic plate is fixedly connected to the bottom plate; Among them, a powder filtering sieving mechanism and a rolling mechanism for rolling after sieving are arranged at the bottom of the pipeline. When the rolling rod rotates, the rolling rod above the limit plate will be driven to rotate through the belt. When the rolling rod rotates, the small protrusion above it will continuously knock the inclined plate above the inclined block to prevent dust particles from sticking to the inclined plate.

[0007] According to the above technical scheme, the cleaning mechanism also includes an L-rod, a rotating plate, a fixed column, a reciprocating screw and a limit plate, one end of the L-rod is fixedly mounted on a side of the push plate away from the inclined block, the rotating plate is rotatably mounted on the other end of the L-rod, one end of the fixed column is fixedly mounted on an end of the telescopic rod close to the straight rod, the reciprocating screw is rotatably mounted on the other end of the fixed column, and the limit plate is rotatably mounted on the circumferential surface of the reciprocating screw. When the push plate moves downward, the L-rod will be driven to move downward, and when the L-rod moves downward, the rotating plate will be driven to move downward. If the limit plate is on the side of the rotating plate close to the L-rod when the rotating plate moves downward.

[0008] According to the above technical solution, a protrusion is provided on the circumferential surface of the rolling rod, the rotating plate is in contact with the limit plate, and a right-angle block is fixedly installed on the side of the rotating plate away from the L rod. A clockwork spring is provided inside the rolling rod. When the rolling rod rotates, the upper protrusion will continuously contact the upper inclined plate, thereby generating vibration to shake off the dust above, avoiding dead corners that cannot be cleaned.

[0009] According to the above technical solution, the sub-screening mechanism includes a connecting plate, an inclined block, a collecting box, a primary screening plate and a telescopic screening plate. The connecting plate is sleeved on the circumferential surface of the reciprocating screw rod, the inclined block is fixedly installed on both sides of the connecting plate, the collecting box is fixedly installed on the bottom of the pipe, the primary screening plate is rotatably installed on the inner wall of the collecting box, the fixed end of the telescopic screening plate is rotatably installed on the inner wall of the collecting box, and two identical sliding grooves are provided on the surface of the connecting plate. When the inclined block moves upward, it will drive the connecting plate below to move upward. When the limit plate leaves the inclined block, the inclined block will move downward due to gravity. When the inclined block moves downward, it will drive the connecting plate to move downward.

[0010] According to the above technical solution, the screening mechanism also includes an elastic telescopic push rod, an arc block and a protruding plate. The elastic telescopic push rod is slidably installed on the free end of the telescopic screen plate, the arc block is fixedly installed on the top of the elastic telescopic push rod, and the protruding plate is fixedly installed on the inner wall of the collecting box. When the telescopic screen plate is flipped, the arc block above the elastic telescopic push rod will be driven to move, and when the arc block moves, it will contact with the protruding plate. When the arc block contacts with the protruding plate, the protruding plate will squeeze the arc block.

[0011] According to the above technical solution, the arc block is in contact with the protruding plate, and a No. 1 spring is arranged between the free end of the arc block and the telescopic screen plate. The telescopic screen plate is slidably installed in the slide groove of the connecting plate, and the primary screen plate is slidably installed in the slide groove of the connecting plate. When the extrusion of the arc block disappears, it will return to its original position due to the elastic force of the No. 1 spring. When the arc block leaves the protruding plate, the elastic telescopic push rod at the bottom of the arc block will move outward by the elastic force of the spring.

[0012] According to the above technical scheme, the rolling mechanism includes a fine product box, a sliding frame, an elastic telescopic baffle, a fixed plate, a connecting plate, a rolling column and a scraper. The fine product box is slidably installed on the bottom of the collection box, the sliding frame is fixedly installed on the bottom of the elastic telescopic baffle, the elastic telescopic baffle is fixedly installed on the inner wall of the sliding frame away from the fine product box, the fixed plate is fixedly installed on the inner wall of the collection box, one end of the connecting plate is fixedly installed on the bottom of the connecting plate, the rolling column is rotatably installed on the other end of the connecting plate, and the scraper is fixedly installed on the inner wall of the collection box. When the elastic telescopic baffle moves, it will contact the scraper above. When the elastic telescopic baffle contacts the scraper, the scraper will push down the remaining particles above the elastic telescopic baffle to prevent particles from remaining above the elastic telescopic baffle.

[0013] According to the above technical solution, the fixed plate is in contact with the rolling column, the connecting plate is a soft plate, and the scraper is in contact with the elastic telescopic baffle. Since the connecting plate is a soft plate, the rolling column will be squeezed by the connecting plate on the fixed plate to rotate. When the rolling column rotates on the fixed plate, the discharged particles will be crushed.

[0014] The present invention provides a composite fly ash dust recovery and recycling device, which has the following beneficial effects: (1) In this invention, when dust is blown out from top to bottom, the rolling rod rotates and continuously hits the inclined plate above the inclined surface block through the small protrusion above, so as to prevent dust particles from sticking to the inclined plate. When the limit plate pushes the rotating plate to move, the plastic belt drives the rolling rod to rotate and clean the dust above the bottom plate when the push plate moves. There is no need to set up a special dust cleaning device and a separate power source, which improves the space utilization rate and overall operation efficiency of the equipment and makes the equipment structure more compact and simple. (2) In this invention, when the connecting plate moves up and down, it drives the primary screen plate and the telescopic screen plate to flip, and screens the dust multiple times to avoid screening errors. When the elastic telescopic push rod moves outward, the large particles at the bottom are discharged to prevent the accumulation of internal particles from affecting the subsequent screening, so that the particle size of the screened product is more uniform, the product quality and purity are improved, and the strict requirements for material particle size in different application scenarios are met. (3) In the present invention, when the fine product box is pulled out from the bottom of the collection box, the upper sliding frame and the elastic retractable baffle inside will pop out, preventing the particles above from being discharged without a response when the fine product box is pulled out. When the rolling column rotates on the fixed plate, the discharged particles will be crushed, which is beneficial for more accurately separating particles of different particle sizes in the subsequent screening process, thereby improving the screening accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the inclined plane block and the inclined plate of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the structure of part B in the middle is enlarged; Figure 4 It is a schematic diagram of the structure of the fixed column and the reciprocating screw rod of the present invention; Figure 5 It is a schematic diagram of the structure of the ramp block and the rolling rod of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the structure enlargement of part A; Figure 7 This is a schematic diagram of the structure of the fine product box and the collection box of the present invention; Figure 8 It is a schematic diagram of the structure of the connecting plate and the rolling column of the present invention.

[0016] In the figure: 1. pipeline; 3. electric fan; 4. electrostatic device; 501. straight rod; 503. telescopic rod; 504. bottom plate; 505. inclined block; 506. inclined plate; 507. rolling rod; 508. push plate; 509. rolling rod; 510. elastic telescopic plate; 511. L rod; 512. rotating plate; 513. fixed column; 514. reciprocating screw rod; 515. limit plate; 701. connecting plate; 702. inclined block; 703. collecting box; 704. primary screening plate; 705. telescopic screening plate; 706. elastic telescopic push rod; 707. arc block; 708. protruding plate; 801. fine box; 802. sliding frame; 803. elastic telescopic baffle; 804. fixed plate; 805. connecting plate; 806. rolling column; 807. scraper. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 8 , one embodiment of the present invention is: a dust recovery and reuse device for composite fly ash, comprising a pipeline 1, an electric fan 3 is arranged on the inner wall of the pipeline 1, an electrostatic device 4 is arranged on the inner wall of the pipeline 1, and a cleaning mechanism is arranged on the inner wall of the pipeline 1; The cleaning mechanism includes a straight rod 501, a telescopic rod 503, a bottom plate 504, a slope block 505, a slope plate 506, a rolling rod 507, a push plate 508, a rolling rod 509 and an elastic telescopic plate 510. One end of the straight rod 501 is fixedly mounted on the bottom of the electric fan 3, one end of the telescopic rod 503 is fixedly mounted on the bottom of the straight rod 501, the bottom plate 504 is fixedly mounted on the other end of the telescopic rod 503, the slope block 505 is slidably mounted on the inner wall of the pipe 1, the slope plate 506 is slidably mounted on the inner wall of the pipe 1, and the rolling rod 507 is rotatably mounted on the inner wall of the pipe 1. The inner wall of the pipeline 1, the rolling rod 509 is rotatably installed on the inner wall of the pipeline 1, the rolling rod 509 and the rolling rod 507 are driven by a belt, the push plate 508 is slidably installed on the top of the bottom plate 504, the fixed end of the elastic telescopic plate 510 is fixedly installed on the bottom of the inner wall of the pipeline 1, and the free end of the elastic telescopic plate 510 is fixedly connected to the bottom plate 504, so that the dust above the bottom plate 504 is cleaned, and there is no need to set up a special dust cleaning device and a separate power source, which improves the space utilization rate and the overall operation efficiency of the equipment and makes the equipment structure more compact and simple.

[0019] The cleaning mechanism also includes an L rod 511, a rotating plate 512, a fixed column 513, a reciprocating screw rod 514 and a limit plate 515. One end of the L rod 511 is fixedly mounted on a side of the push plate 508 away from the inclined block 505, the rotating plate 512 is rotatably mounted on the other end of the L rod 511, one end of the fixed column 513 is fixedly mounted on an end of the telescopic rod 503 close to the straight rod 501, the reciprocating screw rod 514 is rotatably mounted on the other end of the fixed column 513, and the limit plate 515 is rotatably mounted on the circumferential surface of the reciprocating screw rod 514. When the push plate 508 moves downward, the L rod 511 will be driven to move downward. When the L rod 511 moves downward, the rotating plate 512 will be driven to move downward. If the limit plate 515 is on the side of the rotating plate 512 close to the L rod 511 when the rotating plate 512 moves downward.

[0020] A protrusion is arranged on the circumferential surface of the rolling rod 507, the rotating plate 512 is in contact with the limiting plate 515, and a right-angle block is fixedly installed on the side of the rotating plate 512 away from the L rod 511. A clockwork spring is arranged inside the rolling rod 509. When the rolling rod 507 rotates, the upper protrusion will continuously contact the upper inclined plate 506, thereby generating vibration to shake off the dust above, avoiding dead corners that cannot be cleaned.

[0021] When the present embodiment is working, the gas will flow through the pipe 1, and the dust particles will be processed by the electrostatic device 4 in the middle, and the electric fan 3 will be started to rotate. When the electric fan 3 rotates, it will drive the straight rod 501 to rotate. When the straight rod 501 rotates, it will drive the bevel gear under the straight rod 501 to rotate. When the bevel gear under the straight rod 501 rotates, it will drive the bevel gear in front of the reciprocating screw 514 inside the fixed column 513 above the telescopic rod 503 to rotate. When the reciprocating screw 51 When the gear in front rotates, it drives the reciprocating screw 514 to rotate. When the reciprocating screw 514 rotates, it drives the limit plate 515 to move. When there is too much composite fly ash dust above the bottom plate 504, it presses the bottom plate 504 above the elastic telescopic plate 510 to move downward. Then, when the bottom plate 504 moves downward, it drives the push plate 508 to move downward. When the push plate 508 moves downward, it drives the L rod 511 to move downward. When the L rod 511 moves downward, it drives the rotating plate 512 to move downward. If When the rotating plate 512 moves downward, the limit plate 515 is on the side of the rotating plate 512 close to the L rod 511, so the limit plate 515 will drive the rotating plate 512 to move together when it moves. However, when the limit plate 515 is on the side of the rotating plate 512 away from the L rod 511, there is a right-angle plate above the rotating plate 512, so the limit plate 515 will push the rotating plate 512 to move inward until the limit plate 515 enters the side of the rotating plate 512 close to the L rod 511. When the limit plate 515 moves again, the right-angle plate will The plate 512 is limited, so that the limit plate 515 can push the rotating plate 512 to move. At the same time, when the push plate 508 moves, the rolling rod 509 will be driven to rotate through the plastic belt and the dust above the bottom plate 504 will be cleaned. When the rolling rod 509 rotates, the roller rod 507 above the limit plate 515 will be driven to rotate through the belt. When the roller rod 507 rotates, the small protrusion above it will continuously knock on the inclined plate 506 above the inclined block 505 to prevent dust particles from sticking to the inclined plate 506.

[0022] See also Figure 1-Figure 8On the basis of the above embodiment, in another embodiment of the present invention, a powder filtering sieving mechanism and a rolling mechanism for rolling after sieving are arranged at the bottom of the pipeline 1, the sieving mechanism comprises a connecting plate 701, an inclined block 702, a collecting box 703, a primary sieve plate 704 and a telescopic sieve plate 705, the connecting plate 701 is sleeved on the circumferential surface of the reciprocating screw rod 514, the inclined block 702 is fixedly mounted on both sides of the connecting plate 701, the collecting box 703 is fixedly mounted on the bottom of the pipeline 1, the primary sieve plate 704 is rotatably mounted on the inner wall of the collecting box 703, the fixed end of the telescopic sieve plate 705 is rotatably mounted on the inner wall of the collecting box 703, and two identical slide grooves are provided on the surface of the connecting plate 701 to avoid the internal particle accumulation from affecting the subsequent screening, so that the particle size of the screened product is more uniform, the product quality and purity are improved, and the strict requirements of different application scenarios on the particle size of the material are met.

[0023] The screening mechanism also includes an elastic telescopic push rod 706, an arc block 707 and a protruding plate 708. The elastic telescopic push rod 706 is slidably installed on the free end of the telescopic screen plate 705, the arc block 707 is fixedly installed on the top of the elastic telescopic push rod 706, and the protruding plate 708 is fixedly installed on the inner wall of the collecting box 703. When the telescopic screen plate 705 is flipped, the arc block 707 above the elastic telescopic push rod 706 will be driven to move. When the arc block 707 moves, it will contact with the protruding plate 708. When the arc block 707 contacts with the protruding plate 708, the protruding plate 708 will squeeze the arc block 707.

[0024] The arc block 707 is in contact with the protruding plate 708, and a No. 1 spring is arranged between the arc block 707 and the free end of the telescopic screen plate 705. The telescopic screen plate 705 is slidably installed in the slide groove of the connecting plate 701, and the primary screen plate 704 is slidably installed in the slide groove of the connecting plate 701. When the extrusion on the arc block 707 disappears, it will return to its original position due to the elastic force of the No. 1 spring. When the arc block 707 leaves the protruding plate 708, the elastic telescopic push rod 706 at the bottom of the arc block 707 will move outward by the elastic force of the spring.

[0025] The crushing mechanism includes a fine product box 801, a sliding frame 802, an elastic telescopic baffle 803, a fixed plate 804, a connecting plate 805, a rolling column 806 and a scraper 807. The fine product box 801 is slidably installed on the bottom of the collecting box 703, the sliding frame 802 is fixedly installed on the bottom of the elastic telescopic baffle 803, the elastic telescopic baffle 803 is fixedly installed on the inner wall of the sliding frame 802 away from the fine product box 801, the fixed plate 804 is fixedly installed on the inner wall of the collecting box 703, one end of the connecting plate 805 is fixedly installed on the bottom of the connecting plate 701, the rolling column 806 is rotatably installed on the other end of the connecting plate 805, and the scraper 807 is fixedly installed on the inner wall of the collecting box 703, which will crush the discharged particles, which is beneficial to more accurately separate particles of different particle sizes in the subsequent screening process, thereby improving the screening accuracy and efficiency.

[0026] The fixed plate 804 is in contact with the rolling column 806, the connecting plate 805 is a soft plate, and the scraper 807 is in contact with the elastic telescopic baffle 803. Since the connecting plate 805 is a soft plate, the rolling column 806 will be squeezed by the connecting plate 805 on the fixed plate 804 to rotate. When the rolling column 806 rotates on the fixed plate 804, it will crush the discharged particles.

[0027] When the embodiment is working, when the limit plate 515 moves, it will contact the inclined block 702. When the limit plate 515 contacts the inclined block 702, it will drive the inclined block 702 to move upward. When the inclined block 702 moves upward, it will drive the connecting plate 701 below to move upward. When the limit plate 515 leaves the inclined block 702, the inclined block 702 will move downward due to gravity. When the inclined block 702 moves downward, it will drive the connecting plate 701 to move downward. When the connecting plate 701 moves up and down, it will drive the primary screen plate 704 and the telescopic screen plate 705 to flip. When the telescopic screen plate 705 flips over, it will drive the circular arc block 707 above the elastic telescopic push rod 706 to move. When the circular arc block 707 moves upward, it will drive the primary screen plate 704 and the telescopic screen plate 705 to flip. When the arc block 707 moves, it will contact the protruding plate 708. When the arc block 707 contacts the protruding plate 708, the protruding plate 708 will squeeze the arc block 707. When the arc block 707 is squeezed, it will move toward the direction close to the connecting plate 701. When the arc block 707 moves, it will drive the elastic telescopic push rod 706 to move, so that large particles enter the bottom of the elastic telescopic push rod 706. When the arc block 707 leaves the protruding plate 708, the elastic telescopic push rod 706 at the bottom of the arc block 707 will move outward by the elastic force of the spring. When the elastic telescopic push rod 706 moves outward, the large particles at the bottom will be discharged to avoid the accumulation of internal particles affecting subsequent screening.

[0028] When the connecting plate 701 moves up and down, it will drive the connecting plate 805 to move, and when the connecting plate 805 moves, it will drive the rolling column 806 to move. Since the connecting plate 805 is a soft plate, the rolling column 806 will be squeezed by the connecting plate 805 on the fixed plate 804 to rotate. When the rolling column 806 rotates on the fixed plate 804, the discharged particles will be crushed. After the particles are crushed, they will enter the fine product box 801. When the fine product box 801 is pulled out from under the collection box 703, The elastic baffle 803 inside the square sliding frame 802 will pop out to prevent the particles on the top from being discharged without a response when the boutique box 801 is pulled out. When the boutique box 801 is inserted again, the elastic baffle 803 will be pushed to move. When the elastic baffle 803 moves, it will contact the scraper 807 above. When the elastic baffle 803 contacts the scraper 807, the scraper 807 will push down the remaining particles on the elastic baffle 803 to prevent the particles from remaining on the elastic baffle 803.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust recovery and recycling device for composite fly ash, comprising a pipeline (1), characterized in that: The inner wall of the pipeline (1) is provided with an electric fan (3), the inner wall of the pipeline (1) is provided with an electrostatic device (4), and the inner wall of the pipeline (1) is provided with a cleaning mechanism; The cleaning mechanism comprises a straight rod (501), a telescopic rod (503), a bottom plate (504), an inclined surface block (505), an inclined plate (506), a rolling rod (507), a push plate (508) and a rolling rod (509), one end of the straight rod (501) is fixedly mounted on the bottom of the electric fan (3), one end of the telescopic rod (503) is fixedly mounted on the bottom of the straight rod (501), the bottom plate (504) is fixedly mounted on the other end of the telescopic rod (503), and the inclined surface block (505) is fixedly mounted on the bottom of the electric fan (3). 05) is slidably mounted on the inner wall of the pipe (1), the inclined plate (506) is slidably mounted on the inner wall of the pipe (1), the roller (507) is rotatably mounted on the inner wall of the pipe (1), the rolling rod (509) is rotatably mounted on the inner wall of the pipe (1), the rolling rod (509) and the roller (507) are driven by a belt, the push plate (508) is slidably mounted on the top of the bottom plate (504), and the fixed end of the elastic telescopic plate (510) is fixedly mounted on the bottom of the inner wall of the pipe (1); Wherein, a sieving mechanism for powder filtering and a rolling mechanism for rolling after sieving are arranged at the bottom of the pipeline (1).

2. The dust recovery and recycling device of composite fly ash according to claim 1, characterized in that: The cleaning mechanism further comprises an elastic telescopic plate (510), an L-rod (511), a rotating plate (512), a fixed column (513), a reciprocating screw rod (514) and a limiting plate (515); one end of the L-rod (511) is fixedly mounted on a side of the push plate (508) away from the inclined surface block (505); the rotating plate (512) is rotatably mounted on the other end of the L-rod (511); one end of the fixed column (513) is fixedly mounted on an end of the telescopic rod (503) close to the straight rod (501); the reciprocating screw rod (514) is rotatably mounted on the other end of the fixed column (513); the limiting plate (515) is rotatably mounted on the circumferential surface of the reciprocating screw rod (514); and the free end of the elastic telescopic plate (510) is fixedly connected to the bottom plate (504).

3. The dust recovery and recycling device of composite fly ash according to claim 2 is characterized in that: A convex block is arranged on the circumferential surface of the rolling rod (507), the rotating plate (512) is in contact with the limiting plate (515), a right-angle block is fixedly mounted on a side of the rotating plate (512) away from the L rod (511), and a spring is arranged inside the rolling rod (509).

4. The dust recovery and recycling device of composite fly ash according to claim 3 is characterized in that: The screening mechanism comprises a connecting plate (701), an inclined block (702), a collecting box (703), a primary screening plate (704) and a telescopic screening plate (705); the connecting plate (701) is sleeved on the circumferential surface of the reciprocating screw rod (514); the inclined block (702) is fixedly mounted on both sides of the connecting plate (701); the collecting box (703) is fixedly mounted on the bottom of the pipeline (1); the primary screening plate (704) is rotatably mounted on the inner wall of the collecting box (703); the fixed end of the telescopic screening plate (705) is rotatably mounted on the inner wall of the collecting box (703); and two identical sliding grooves are provided on the surface of the connecting plate (701).

5. The dust recovery and recycling device of composite fly ash according to claim 4, characterized in that: The screening mechanism further comprises an elastic telescopic push rod (706), an arc block (707) and a protruding plate (708); the elastic telescopic push rod (706) is slidably mounted on the free end of the telescopic screen plate (705); the arc block (707) is fixedly mounted on the top of the elastic telescopic push rod (706); and the protruding plate (708) is fixedly mounted on the inner wall of the collection box (703).

6. The device for recycling and reusing composite fly ash according to claim 5, characterized in that: The arc block (707) is in contact with the protruding plate (708), and a No. 1 spring is provided between the arc block (707) and the free end of the telescopic screen plate (705). The telescopic screen plate (705) is slidably mounted in the slide groove of the connecting plate (701), and the primary screen plate (704) is slidably mounted in the slide groove of the connecting plate (701).

7. The device for recycling and reusing composite fly ash according to claim 6, characterized in that: The rolling mechanism comprises a fine product box (801), a sliding frame (802), an elastic telescopic baffle (803), a fixed plate (804), a connecting plate (805), a rolling column (806) and a scraper (807); the fine product box (801) is slidably mounted on the bottom of the collection box (703); the sliding frame (802) is fixedly mounted on the bottom of the elastic telescopic baffle (803); the elastic telescopic baffle (803) is fixedly mounted on a side of the inner wall of the sliding frame (802) away from the fine product box (801); the fixed plate (804) is fixedly mounted on the inner wall of the collection box (703); one end of the connecting plate (805) is fixedly mounted on the bottom of the connecting plate (701); the rolling column (806) is rotatably mounted on the other end of the connecting plate (805); and the scraper (807) is fixedly mounted on the inner wall of the collection box (703).

8. The device for recycling and reusing composite fly ash according to claim 7, characterized in that: The fixed plate (804) is in contact with the rolling column (806), the connecting plate (805) is a soft plate, and the scraper (807) is in contact with the elastic telescopic baffle (803).

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