Fly ash mixing equipment

Abstract

The present invention relates to the technical field of mixing, and specifically discloses a fly ash mixing equipment, wherein a carrier plate is provided on a stirring member to slide along its radial direction, a guide member 1 for driving the carrier plate to move is provided in the stirring member, a base plate fixedly connected to the stirring member is provided in the carrier plate, an end of the base plate away from the axis of the stirring member is provided with a rubbing plate rotatably through an elastic member 1, when the carrier plate moves toward the direction close to the axis of the stirring member, the rubbing plate can extend out of the carrier plate and form a rubbing angle between the carrier plate and the inner wall of the material box; a matching cylinder is rotatably provided on the stirring member, the matching cylinder is connected to the base frame through a driving assembly, a plurality of mixing pieces are provided on the matching cylinder along its circumference, the mixing pieces are connected to the matching cylinder through an elastic member 2 and can slide along its radial direction, a matching piece is rotatably provided on the mixing piece through an elastic member 3, a guide member 2 for driving the mixing piece to move is provided in the matching cylinder, and the present invention is conducive to sufficient mixing of dry fly ash and chelating agent inside the agglomerated material.

Description

Technical Field

[0001] The invention relates to the technical field of mixing, and in particular to a fly ash mixing device. Background Art

[0002] Fly ash is the tiny ash particles discharged during the combustion of fuel (mainly coal). Fly ash is also called fly ash or smoke ash. It is a fine solid particle in the flue gas ash produced by the combustion of fuel. For example, the fine ash collected from the flue gas in a coal-fired power plant. Fly ash is formed when coal powder enters the furnace at 1300℃~1500℃ and is cooled after being absorbed by the hot surface under suspended combustion conditions.

[0003] At present, when fly ash is treated, chelating agents are mostly used. The garbage fly ash chelation stabilization technology is an emerging technology with the advantages of harmlessness, little or no volume increase, and lower treatment cost than high-temperature treatment technology. The fly ash chelation stabilization technology is to add chelating agents to the fly ash for mixing, and then knead the mixed materials. This process can stabilize the heavy metals in the fly ash in the form of chelates to prevent the toxicity of heavy metals from invading. Since the generated chelates have long-term stability, the fly ash complex after chelating agent integration can be landfilled in general landfills.

[0004] A Chinese patent with announcement number CN217431548U discloses a high-efficiency stirring device for fly ash solidification, which drives the spline sleeve to rotate through the rotation of the motor output end, and the spline shaft drives the roller to roll up and down along the fixed block, and then the roller drives the spline shaft, the stirring shaft, and the stirring blades to move up and down while rotating through the annular body. The cam drives the scraper ring to move up and down through the driving rod with the cooperation of the spring, and then the scraper ring can scrape off the fly ash or other raw materials that are adhered to or residual on the inner wall of the mixing drum.

[0005] When fly ash and chelating agent are mixed, the fly ash will clump together, which makes the outside of the agglomerated fly ash contact with the chelating agent more fully, while the fly ash wrapped inside is still in a dry state. It is difficult to disperse the agglomerated materials through the stirring blades, so that the fly ash wrapped inside can be better mixed. Summary of the invention

[0006] The invention provides a fly ash mixing device, aiming to solve the problem in the related art that it is difficult to fully mix the dry fly ash and the chelating agent inside the agglomerated material.

[0007] A fly ash mixing equipment comprises a base frame, a material box arranged on the base frame and a stirring member rotatably arranged in the material box, a liquid spraying pipe and a feeding pipe are arranged on the top of the material box, and a discharge pipe is arranged at the bottom of the material box, a carrier plate is arranged on the stirring member to slide along its radial direction, a guide member for driving the carrier plate to move is arranged in the stirring member, the guide member is fixedly connected to the base frame, a base plate fixedly connected to the stirring member is arranged in the carrier plate, a rubbing plate is rotatably arranged at one end of the base plate away from the axis of the stirring member through an elastic member, when the carrier plate moves in a direction close to the axis of the stirring member, the rubbing plate can extend out of the carrier plate and form a rubbing angle between the inner wall of the material box; a matching cylinder is rotatably arranged on the stirring member, the matching cylinder is close to the outer edge of the stirring member, the matching cylinder is connected to the base frame through a driving assembly, and a matching cylinder is arranged along its circumference A plurality of mixing pieces are provided, wherein the mixing piece is connected to a matching cylinder through an elastic piece 2 and can slide radially thereof, a matching piece is rotatably provided on the mixing piece through an elastic piece 3, a guide piece 2 for driving the mixing piece to move is provided in the matching cylinder, the guide piece 2 is fixedly connected to the stirring piece, and the outer periphery of the guide piece 2 has a matching surface 1, a matching surface 2 and a matching surface 3 which are connected in sequence, when the mixing piece abuts against the matching surface 2 and the matching surface 3, the mixing piece and the matching piece are in an overlapping state and contact with the inner wall of the material box, when the mixing piece abuts against the matching surface 1, the mixing piece and the matching piece are in a crossed state and are out of contact with the inner wall of the material box; the material on the inner wall of the material box is rubbed apart by a rubbing board, and then the rubbed apart material can be dispersed again by the mixing piece and the matching piece, so as to fully mix the material with the chelating agent.

[0008] Preferably, the bottom of the material box has a semicircular groove coaxially arranged with the stirring piece, and the matching cylinder is located behind the carrier plate along the rotation direction of the stirring piece, so that when the stirring piece rotates, the mixing piece and matching piece on the matching cylinder can promptly process the material rubbed apart by the rubbing board.

[0009] Preferably, a shaft 1 fixedly connected to the base frame is coaxially provided in the stirring member, a guide member 1 is fixedly connected to the shaft 1, the guide member 1 includes two guide blocks arranged opposite to each other, guide slides are respectively provided on opposite sides of the two guide blocks, the guide slides include guide part 1, guide part 2, guide part 3 and guide part 4 connected in sequence, a guide rod cooperating with the guide slides is provided on the carrier plate, the radius of guide part 1 is larger than that of guide part 3, guide part 3 is located below guide part 1 and corresponds to the groove; the setting of the guide slides enables the rubbing board to process the material on the wall of the groove when the carrier plate moves to guide part 3.

[0010] Preferably, the carrier plate has a sliding cavity for sliding of the substrate, and one end of the sliding cavity away from the axis of the stirring member has an inclined surface that cooperates with the rubbing board.

[0011] Preferably, a second shaft fixedly connected to the stirring member is coaxially disposed in the matching cylinder, a second guide member is fixedly connected to the second shaft, and a matching rod matching with the second guide member is provided on the mixing member.

[0012] Preferably, the mixing piece has a plurality of notches along its length extension direction, the matching piece has a rod matching with the notches, and the matching cylinder is provided with a matching hole for the sliding of the mixing piece; the matching hole is arranged so that when the mixing piece stops against the matching surface, the matching piece can extend from the matching hole, so that an angle is generated between the mixing piece and the matching piece, so that the mixing piece and the matching piece can disperse the rubbed materials.

[0013] Preferably, the driving assembly includes gear 1 coaxially fixed with the end of the matching cylinder, gear 2 coaxially fixed with the shaft, and a driving rod rotatably connected to the stirring member. When the stirring member rotates, gear 2 can drive gear 1 to rotate through the driving rod.

[0014] Preferably, one end of the driving rod is provided with a gear three that cooperates with the gear one, and the other end is provided with a gear four that cooperates with the gear two, so that when the stirring member rotates, the driving rod can rotate around the axis one, thereby driving the matching cylinder to rotate.

[0015] Preferably, the stirring member comprises a rotating shaft rotatably connected to the material box, an inner stirring blade and an outer stirring blade are fixedly provided on the rotating shaft, and a driving member for driving the rotating shaft to rotate is provided on the base frame.

[0016] By adopting the above technical scheme, the beneficial effects of the present invention are as follows: during the rotation of the stirring member, when the guide rod moves in the guide part three, the material close to the rubbing board can enter the rubbing channel and be rubbed apart by the rubbing board, so that the dry material inside the clumped material is exposed, and then when the mixing member stops with the matching surface two and the matching surface three, the end of the mixing member and the matching member away from the axis two contacts with the inner wall of the groove of the material box, thereby scraping off a part of the material rubbed apart by the rubbing board, and then the mixing member stops with the matching surface one, and the mixing member and the matching member are in a crossed state. At this time, the mixing member and the matching member can disperse the scraped material again, so that this part of the material is fully mixed with the remaining material, thereby improving the mixing effect of the fly ash and the chelating agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle.

[0018] Figure 2 It is a schematic diagram of the second viewing angle of the overall structure of the present invention.

[0019] Figure 3 It is a first cross-sectional view of the material box of the present invention.

[0020] Figure 4 It is a second cross-sectional view of the material box of the present invention.

[0021] Figure 5 for Figure 4 Cross-sectional view at point A.

[0022] Figure 6 It is a schematic diagram of the matching of the rotating shaft, the carrier plate and the matching cylinder of the present invention.

[0023] Figure 7 It is a cross-sectional view of the rotating shaft of the present invention.

[0024] Figure 8 It is a cross-sectional view of the guide block and the carrier plate of the present invention.

[0025] Fig. 9 It is a cross-sectional view of the carrier plate of the present invention.

[0026] Fig.10 This is a driving relationship diagram between shaft 1 and the matching cylinder of the present invention.

[0027] Fig.11 It is a cross-sectional view of the matching cylinder of the present invention.

[0028] Fig.12 It is an exploded view of the mixed part and the matching part of the present invention.

[0029] Fig.13 It is a schematic diagram of the mating surface one, the mating surface two and the mating surface three of the present invention.

[0030] Reference numerals: 10, base frame; 11, material box; 121, rotating shaft; 122, inner stirring blade; 123, outer stirring blade; 124, connecting plate; 13, shaft 1; 14, guide block; 141, guide part 1; 142, guide part 2; 143, guide part 3; 144, guide part 4; 15, shaft 2; 16, liquid spray pipe; 17, feed pipe; 18, discharge pipe; 19, driving member; 20, carrier plate; 200, connecting rod; 2 01, guide rod; 202, sliding cavity; 203, inclined surface; 21, base plate; 211, fixed rod; 22, washboard; 30, matching cylinder; 31, mixing piece; 311, elastic piece 2; 312, matching rod; 32, matching piece; 322, rod; 331, matching surface 1; 332, matching surface 2; 333, matching surface 3; 41, gear 1; 42, gear 2; 43, driving rod; 44, gear 3; 45, gear 4. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0032] like Figure 1-Figure 5As shown, a fly ash mixing equipment comprises a base frame 10, a material box 11 arranged on the base frame 10 and a stirring member rotatably arranged in the material box 11, a spray pipe 16 for adding a chelating agent into the material box 11 and a feeding pipe 17 for adding fly ash into the material box 11 are arranged on the top of the material box 11, the feeding pipe 17 is connected with an external feeding device, a discharge pipe 18 is arranged at the bottom of the material box 11, a discharge valve is arranged on the discharge pipe 18, the stirring member comprises a rotating shaft 121 rotatably connected to the material box 11, an inner stirring blade 122 and an outer stirring blade 123 are fixedly arranged on the rotating shaft 121, the inner stirring blade 122 and the outer stirring blade 123 are respectively spiral-shaped and the rotation directions of the inner stirring blade 122 and the outer stirring blade 123 are opposite, a driving member 19 for driving the rotating shaft 121 to rotate is provided on the base frame 10, and the driving member 19 can be a motor, and a semicircular groove is arranged coaxially with the rotating shaft 121 at the bottom of the material box 11.

[0033] like Figure 5-Figure 9 As shown, a carrier plate 20 is provided on the rotating shaft 121 for sliding radially thereof, a shaft 13 fixedly connected to the base frame 10 is coaxially provided inside the rotating shaft 121, two guide members 1 for driving the carrier plate 20 to move are fixedly provided on the shaft 13, the guide member 1 includes two guide blocks 14 arranged opposite to each other, guide slideways are respectively provided on opposite sides of the two guide blocks 14, the guide slideways include a guide portion 141, a guide portion 2 142, a guide portion 3 143 and a guide portion 4 144 connected in sequence, a connecting rod 200 is provided on the carrier plate 20 along the radial direction of the shaft 13, the connecting rod 200 is located between the two guide blocks 14 and a guide rod 201 is provided on the connecting rod 200 for cooperating with the guide slideway, in this embodiment, the radius of the guide portion 141 is larger than that of the guide portion 3 143, the guide portion 3 143 is located below the guide portion 141 and corresponds to the groove.

[0034] A base plate 21 fixedly connected to the rotating shaft 121 is provided in the carrier plate 20, and the base plate 21 is connected to the rotating shaft 121 through a fixing rod 211. A rubbing board 22 is rotatably provided at one end of the base plate 21 away from the axis of the rotating shaft 121 through an elastic member 1, and the elastic member 1 is specifically a torsion spring. A sliding cavity 202 for sliding of the base plate 21 is provided in the carrier plate 20, and an end of the sliding cavity 202 away from the axis of the stirring member has an inclined surface 203 cooperating with the rubbing board 22. When the guide rod 201 moves in the guide portion 141, the carrier plate 20 is at a position away from the axis of the stirring member. At this time, the rubbing board 22 is stored in the carrier plate 20. When the guide rod 201 is located in the guide portion 3 143, the carrier plate 20 is at a position close to the axis of the stirring member. At this time, the rubbing board 22 extends out of the carrier plate 20 and stops at the inclined surface 203 under the action of the elastic member 1. At this time, a rubbing angle is formed between the rubbing board 22 and the inner wall of the material box 11, and a rubbing channel is provided between the rubbing board 22 and the inner wall of the material box 11.

[0035] like Figure 5 , Figure 6 as well as Figure 10-13As shown, two corresponding connecting plates 124 are fixedly provided at both ends of the rotating shaft 121 along its axial direction. The connecting plates 124 extend along the radial direction of the rotating shaft 121. A matching cylinder 30 is rotatably provided between the two connecting plates 124. The matching cylinder 30 is close to the outer edge of the stirring member. Along the rotation direction of the stirring member, the matching cylinder 30 is located behind the carrier plate 20. The matching cylinder 30 is connected to the base frame 10 through a driving assembly. A plurality of mixing pieces 31 are provided on the matching cylinder 30 along its circumference. The mixing pieces 31 can be rotated along the matching cylinder 3 0 radial sliding, a matching hole for the mixing piece 31 to slide is opened on the matching cylinder 30, the mixing piece 31 is connected to the matching cylinder 30 through the elastic piece 2 311, the elastic piece 2 311 is specifically a spring, a shaft 2 15 fixedly connected to the connecting plate 124 is coaxially arranged in the matching cylinder 30, a guide piece 2 for driving the mixing piece 31 to move is fixedly arranged on the shaft 2 15, a matching rod 312 matching with the guide piece 2 is provided on the mixing piece 31, and a matching piece is provided on the mixing piece 31 through the elastic piece 3 rotation 32, the elastic member 3 is specifically a torsion spring, the mixing member 31 has a plurality of notches along its length extension direction, the matching member 32 has a rod 322 matching with the notches, the outer periphery of the guide member 2 has a matching surface 1 331, a matching surface 2 332 and a matching surface 333 connected in sequence, when the mixing member 31 abuts against the matching surface 2 332 and the matching surface 333, the rod 322 is located in the notch, the mixing member 31 and the matching member 32 both abut against the inner wall of the matching hole so that the mixing member 31 and the matching member 32 are When the mixing piece 31 and the matching piece 32 are in an overlapping state, the ends of the mixing piece 31 and the matching piece 32 away from the axis 2 15 can contact the inner wall of the groove of the material box 11; when the mixing piece 31 abuts against the matching surface 1 331, the mixing piece 31 still abuts against the inner wall of the matching hole, and the matching piece 32 extends out of the matching hole. At this time, under the action of the elastic piece 3, the rod 322 rotates out of the notch to generate an angle between the mixing piece 31 and the matching piece 32. At this time, the mixing piece 31 and the matching piece 32 are out of contact with the inner wall of the material box 11.

[0036] It should be noted that the connection between the second mating surface 332 and the third mating surface 333 is located in the radial direction of the rotating shaft 121, and the opening formed by the second mating surface 332 and the third mating surface 333 is facing the outside of the material box 11. The arrangement of the second mating surface 332 and the third mating surface 333 makes it convenient for the mixing piece 31 and the end of the mating piece 32 away from the second shaft 15 to maintain contact with the inner wall of the groove of the material box 11 for a period of time when the mating cylinder 30 rotates, so as to facilitate scraping off the material on the groove wall of the material box 11.

[0037] The driving assembly includes a gear 1 41 coaxially fixed with the end of the matching cylinder 30, a gear 2 42 coaxially fixed with the shaft 13, and a driving rod 43 rotatably connected to the connecting plate 124. One end of the driving rod 43 is provided with a gear 3 44 matched with the gear 1 41, and the other end is provided with a gear 45 matched with the gear 2 42. Among them, gear 1 41, gear 2 42, gear 3 44 and gear 4 45 are all bevel gears. When the stirring member rotates, gear 2 42 can drive gear 1 41 to rotate through the driving rod 43, thereby driving the matching cylinder 30 to rotate.

[0038] Specific working principle: Reference Figure 1-Figure 13 , control the driving member 19 to operate so that the stirring member rotates clockwise (from right to left along the axial direction of the rotating shaft 121) in the material box 11. At this time, the matching cylinder 30 rotates clockwise (from right to left along the axial direction of the second shaft 15) under the action of the driving assembly, and a certain amount of fly ash is added to the material box 11 through the feeding pipe 17. In this process, the chelating agent is sprayed into the material box 11 through the spray pipe 16. The stirring member can stir and mix the materials in the material box 11. In this process, when the guide rod 201 moves in the guide part three 143, the materials close to the rubbing board 22 can enter the rubbing channel and be rubbed by the rubbing board 22, so that the dry materials inside the clumped materials are exposed. Next, when the mixing piece 31 stops against the second mating surface 332 and the third mating surface 333, the ends of the mixing piece 31 and the mating piece 32 away from the second axis 15 contact the inner wall of the groove of the material box 11, thereby scraping off a part of the material rubbed off by the rubbing plate 22, and then the mixing piece 31 stops against the first mating surface 331, and the mixing piece 31 and the mating piece 32 are in a crossed state. At this time, the mixing piece 31 and the mating piece 32 can disperse the scraped material again, so that this part of the material can be fully mixed with the remaining material, thereby improving the mixing effect of the fly ash and the chelating agent. When the material mixing is completed, the mixed material can be discharged from the discharge pipe 18 by opening the discharge valve.

[0039] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A fly ash mixing device, comprising a base frame, a material box arranged on the base frame, and a stirring member rotatably arranged in the material box, a liquid spray pipe and a feed pipe are arranged on the top of the material box, and a discharge pipe is arranged at the bottom of the material box, characterized in that: The stirring member is provided with a carrier plate sliding along its radial direction, the stirring member is provided with a guide member 1 for driving the carrier plate to move, the guide member 1 is fixedly connected to the base frame, the carrier plate is provided with a base plate fixedly connected to the stirring member, and an end of the base plate away from the axis of the stirring member is provided with a rubbing plate rotatably provided through an elastic member 1, when the carrier plate moves in a direction close to the axis of the stirring member, the rubbing plate can extend out of the carrier plate and form a rubbing angle between the inner wall of the material box; A matching cylinder is rotatably provided on the stirring piece, the matching cylinder is close to the outer edge of the stirring piece, the matching cylinder is connected to the base frame through a driving assembly, a plurality of mixing pieces are provided on the matching cylinder along its circumference, the mixing piece is connected to the matching cylinder through an elastic piece 2 and can slide along its radial direction, a matching piece is rotatably provided on the mixing piece through an elastic piece 3, a guide piece 2 for driving the mixing piece to move is provided in the matching cylinder, the guide piece 2 is fixedly connected to the stirring piece, the outer periphery of the guide piece 2 has a matching surface 1, a matching surface 2 and a matching surface 3 which are connected in sequence, when the mixing piece stops against the matching surface 2 and the matching surface 3, the mixing piece and the matching piece are in an overlapping state and in contact with the inner wall of the material box, when the mixing piece stops against the matching surface 1, the mixing piece and the matching piece are in a crossed state and are out of contact with the inner wall of the material box.

2. A fly ash mixing equipment according to claim 1, characterized in that: The bottom of the material box is provided with a semicircular groove coaxially arranged with the stirring piece, and along the rotation direction of the stirring piece, the matching cylinder is located behind the carrier plate.

3. A fly ash mixing equipment according to claim 2, characterized in that: A shaft 1 fixedly connected to the base frame is coaxially provided in the stirring member, a guide member 1 is fixedly connected to the shaft 1, the guide member 1 includes two guide blocks arranged opposite to each other, guide slides are respectively provided on opposite sides of the two guide blocks, the guide slides include guide part 1, guide part 2, guide part 3 and guide part 4 connected in sequence, a guide rod cooperating with the guide slides is provided on the carrier plate, the radius of the guide part 1 is larger than that of the guide part 3, the guide part 3 is located below the guide part 1 and corresponds to the groove.

4. A fly ash mixing equipment according to claim 1, characterized in that: The carrier plate is provided with a sliding cavity for sliding of the substrate, and one end of the sliding cavity away from the axis of the stirring member is provided with an inclined surface matched with the rubbing board.

5. The fly ash mixing equipment according to claim 1, characterized in that: A second shaft fixedly connected to the stirring member is coaxially arranged in the matching cylinder, a second guide member is fixedly connected to the second shaft, and a matching rod matched with the second guide member is provided on the mixing member.

6. The fly ash mixing equipment according to claim 1, characterized in that: The mixing piece is provided with a plurality of notches along its length extension direction, the matching piece is provided with a rod matched with the notches, and the matching cylinder is provided with a matching hole for the sliding of the mixing piece.

7. The fly ash mixing equipment according to claim 3, characterized in that: The driving assembly includes a gear 1 fixedly arranged coaxially with the end of the matching cylinder, a gear 2 fixedly arranged coaxially with the shaft, and a driving rod rotatably connected to the stirring member. When the stirring member rotates, the gear 2 can drive the gear 1 to rotate through the driving rod.

8. The fly ash mixing equipment according to claim 7, characterized in that: One end of the driving rod is provided with a gear three that matches with the gear one, and the other end is provided with a gear four that matches with the gear two.

9. A fly ash mixing equipment according to any one of claims 1 to 8, characterized in that: The stirring member comprises a rotating shaft rotatably connected to the material box, an inner stirring blade and an outer stirring blade are fixedly arranged on the rotating shaft, and a driving member for driving the rotating shaft to rotate is provided on the base frame.

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