A fly ash mixing device

Abstract

The present invention relates to the technical field of fly ash mixing, and specifically discloses a fly ash mixing device, which includes a mixing tank and a mixing assembly. Inside the mixing tank, a pre-mixing chamber, a mixing chamber, and a storage chamber are sequentially arranged from top to bottom. The mixing assembly is arranged in the mixing chamber. The storage chamber is used for storing fly ash. A mushroom-shaped nozzle for spraying a hemispherical water curtain is arranged in the pre-mixing chamber. Below the mushroom-shaped nozzle, there is a material receiving tray and a driving assembly for driving the material receiving tray to rotate. A filter screen is arranged between the pre-mixing chamber and the mixing chamber, and the filter screen is located below the material receiving tray. A feeding assembly is arranged between the storage chamber and the pre-mixing chamber, and the discharge port of the feeding assembly is located above the material receiving tray. The fly ash mixing device of the present invention covers the fly ash with a hemispherical water curtain, improving the problem of easy dust generation when introducing fly ash. The fly ash is scattered by the material receiving tray, which is beneficial to the preliminary mixing of the fly ash and the water curtain, and improves the problem of easy caking when a large amount of fly ash comes into contact with the washing liquid.

Description

Technical Field

[0001] The present invention relates to the technical field of fly ash stirring, and particularly relates to a fly ash stirring device. Background Art

[0002] Fly ash is the material collected by the flue gas dust collector after domestic waste incineration, which contains a large amount of harmful substances such as soluble heavy metals and dioxins and cannot be directly landfilled. In order to reduce the chloride ion content in fly ash and the leaching risk of heavy metals, fly ash usually needs to be pretreated by water washing. During the water washing process, soluble substances such as chlorides and heavy metals will be leached out, thereby reducing the content of harmful substances in fly ash.

[0003] Chinese Patent with Publication No. CN114177717B discloses a waste incineration fly ash treatment device, including a tank body, a sludge scraping component located at the bottom of the tank body, and a mixing component for water washing and stirring in the tank body. The mixing component includes a main shaft and a driving component for driving the main shaft to move. The main shaft rotates and moves in the tank body while rotating, and a stirring member that moves with the main shaft is installed on the main shaft. This patent document drives the stirring member to move through the driving component, so that the stirring member moves in a plane to ensure that each point in the tank body can be stirred periodically; the sludge scraping component solves the problem that during the water washing process, solid phase accumulation and dead corners are likely to occur at the bottom due to the settlement of fly ash, resulting in poor water washing process.

[0004] However, in the actual use process of the above patent document, when adding fly ash, it will cause dust flying, affecting the working environment and causing harm to the health of the staff. Moreover, fly ash will adhere to the inner wall, resulting in part of the fly ash adhering to the inner wall being unable to participate in the water washing treatment. In addition, directly mixing a large amount of fly ash with the water washing liquid is likely to cause fly ash to agglomerate, resulting in incomplete water washing of fly ash.

[0005] Therefore, there is a need in the art for a fly ash stirring device to solve the above problems. Summary of the Invention

[0006] The present invention provides a fly ash stirring device, aiming to solve the problems that the fly ash stirring device in the related art is prone to cause dust flying when adding fly ash and is prone to agglomeration when fly ash is mixed with the water washing liquid.

[0007] A fly ash stirring device of the present invention includes a stirring tank and a stirring component. A pre-mixing chamber, a stirring chamber, and a storage chamber are sequentially arranged in the stirring tank from top to bottom. The stirring component is arranged in the stirring chamber. The storage chamber is used for storing fly ash. A mushroom-shaped nozzle for spraying a hemispherical water curtain is arranged in the pre-mixing chamber. A material receiving tray and a driving component for driving the material receiving tray to rotate are arranged below the mushroom-shaped nozzle. A filter screen is arranged between the pre-mixing chamber and the stirring chamber, and the filter screen is located below the material receiving tray. A feeding component is arranged between the storage chamber and the pre-mixing chamber, and the discharge port of the feeding component is located above the material receiving tray;

[0008] The mushroom-shaped nozzle is used to spray the washing liquid, so that the washing liquid forms a water curtain above and around the material holding tray. The feeding assembly conveys the fly ash in the storage cavity to the material holding tray. The driving assembly drives the material holding tray to rotate. Under the action of centrifugal force, the fly ash disperses around the material holding tray, combines with the water curtain formed by the washing liquid, and falls from the filter screen into the stirring cavity.

[0009] By setting the mushroom-shaped nozzle in the present invention, a hemispherical water curtain is formed above the material holding tray to enclose the fly ash, which improves the problem of easy dust generation when introducing fly ash. Moreover, the fly ash is conveyed from bottom to top and spreads to the outer periphery of the material holding tray under the rotation of the material holding tray, which is beneficial to the preliminary mixing of the fly ash and the water curtain in the pre-mixing cavity, and improves the problem of easy caking when a large amount of fly ash contacts the washing liquid mentioned in the background art.

[0010] Preferably, the stirring assembly includes a first driving member and a stirring rod. Stirring wings are fixedly connected to the outer periphery of the stirring rod. The first driving member drives the stirring rod to drive the stirring wings to rotate.

[0011] Preferably, the first driving member includes a first motor, a first bevel gear and a second bevel gear. An installation cavity is provided below the stirring cavity of the stirring tank. The first motor is fixedly installed in the installation cavity. The first bevel gear is fixedly connected to the output end of the first motor. The stirring rod penetrates into the installation cavity and is fixedly connected to the second bevel gear. The second bevel gear meshes with the first bevel gear.

[0012] After pre-mixing in the pre-mixing cavity, the fly ash and the washing liquid fall from the mesh holes of the filter screen into the stirring cavity. The stirring wings continue to stir and mix the fly ash and the washing liquid, which is beneficial to the full leaching of soluble substances such as chlorides and heavy metals in the fly ash.

[0013] Preferably, the top end of the stirring rod penetrates through the filter screen into the pre-mixing cavity. The material holding tray is sleeved on the outer periphery of the stirring rod. The driving assembly includes a limiting groove opened on the outer periphery of the stirring rod and a convex block fixedly connected to the material holding tray. The convex block is located in the limiting groove. When the stirring rod rotates, the material holding tray is driven to rotate synchronously through the cooperation of the convex block and the limiting groove.

[0014] Driving the material holding tray to rotate synchronously by the stirring rod eliminates the need to separately set a driving source for the material holding tray, reducing the production cost.

[0015] Preferably, a double-threaded section is provided on the outer periphery of the stirring rod. A ring sleeve is provided between the material holding tray and the stirring rod. The ring sleeve is cooperatively connected with the double-threaded section. And a guide rod penetrating through the filter screen is fixedly connected to the bottom of the ring sleeve. The limiting groove extends vertically. The material holding tray is rotatably connected to the ring sleeve. When the stirring rod rotates, the ring sleeve is driven to reciprocate in the up and down direction through the double-threaded section. The ring sleeve drives the material holding tray to reciprocate in the up and down direction. At the same time, the material holding tray rotates synchronously with the stirring rod.

[0016] Through the cooperation of the bidirectional threaded section and the ring sleeve, the material storage tray is driven to reciprocate up and down, increasing the scattering area of the fly ash, which is beneficial for the fly ash to better pre-mix with the water curtain formed by the washing liquid, further reducing the probability of forming lumps; moreover, when there are lumps filtered on the filter screen, the material storage tray contacts and rotates with the filter screen, and can roll over the lumps to break the lumps.

[0017] Preferably, the filter screen is slidably connected to the mixing tank vertically. An activity ring is rotatably connected to the bottom of the filter screen. The activity ring is elastically connected to the stirring rod vertically through an elastic telescopic rod. A limiting plate is fixedly connected to the activity ring. A limiting hole extending in the horizontal direction is provided on the limiting plate. An elastic block adapted to the limiting hole is elastically connected to the outer periphery of the stirring rod. The end of the elastic block is hemispherical. When the ring sleeve drives the material storage tray to move downward to contact the filter screen, the filter screen and the activity ring are extruded to move downward until the elastic block enters the limiting hole.

[0018] By squeezing the elastic block into the limiting hole, when the material storage tray moves upward, the elastic force of the elastic telescopic rod pushes the activity ring to move upward. The edge of the limiting hole squeezes the elastic block to make the elastic block move towards the direction close to the stirring rod. After the elastic block completely escapes from the limiting hole, the elastic telescopic rod pushes the activity ring and the filter screen to quickly pop up upward, so that the fly ash in the filter screen holes vibrates into the mixing cavity, improving the situation of filter screen blockage.

[0019] Preferably, a ring groove is provided on the outer periphery of the ring sleeve. Wedge blocks are evenly arranged at intervals at the bottom of the ring groove. The inclined surface of the wedge block is inclined from bottom to top in the rotation direction of the stirring rod. A fixed block adapted to the wedge block is fixedly connected to the material storage tray. And the material storage tray is elastically matched with the ring sleeve vertically through a spring. During the rotation of the material storage tray, the inclined surface of the wedge block pushes the fixed block to drive the material storage tray to move upward. When the fixed block is separated from the wedge block, the elastic force of the spring resets the material storage tray.

[0020] During the rotation of the material storage tray, the inclined surface of the wedge block pushes the fixed block to drive the material storage tray to move upward. When the fixed block is separated from the wedge block, the elastic force of the spring resets the material storage tray, so as to realize that the material storage tray vibrates continuously during the rotation process, which is beneficial for the scattering of fly ash and makes the fly ash mix more evenly and fully with the washing liquid.

[0021] Preferably, the feeding assembly includes a feeding pipe arranged inside the stirring rod, a feeding rod arranged inside the feeding pipe, and a driving member two for driving the feeding rod to rotate. A spiral blade is fixedly connected to the outer periphery of the feeding rod. The bottom end of the feeding pipe is located in the storage cavity, and the top end is located above the material storage tray. The driving member two drives the feeding rod to drive the spiral blade to rotate to convey fly ash.

[0022] Preferably, a liquid storage cavity is arranged below the storage cavity of the mixing tank. A water delivery pipe is arranged in the liquid storage cavity. The water delivery pipe penetrates through the feeding rod and extends above the feeding rod. The mushroom-shaped nozzle is connected to the top end of the water delivery pipe. A water pump is arranged in the liquid storage cavity. The water pump is connected to the bottom end of the water delivery pipe.

[0023] Preferably, the second driving member includes a second motor, a third bevel gear, and a fourth bevel gear. The second motor is fixedly installed at the top of the liquid storage cavity. The third bevel gear is fixedly connected to the output end of the second motor. The feeding rod penetrates into the liquid storage cavity and is fixedly connected to the fourth bevel gear. The fourth bevel gear meshes with the third bevel gear.

[0024] The beneficial effects of the present invention are as follows: By providing a mushroom-shaped nozzle, a hemispherical water curtain is formed above the material receiving tray, covering the fly ash with the hemispherical water curtain, improving the problem of easy dust generation when introducing fly ash. Moreover, the fly ash is conveyed from bottom to top and spreads to the outer periphery of the material receiving tray under the rotation of the material receiving tray, which is conducive to the preliminary mixing of the fly ash and the water curtain in the pre-mixing cavity, improving the problem of easy caking when a large amount of fly ash contacts the washing liquid mentioned in the background art. Description of the Drawings

[0025] Figure 1 is the overall structural schematic diagram of a fly ash stirring device of the present invention.

[0026] Figure 2 is the cross-sectional view of a fly ash stirring device of the present invention.

[0027] Figure 3 is the assembly schematic diagram of the stirring assembly, filter screen and material receiving tray of a fly ash stirring device of the present invention Figure 1 .

[0028] Figure 4 is the assembly schematic diagram of the stirring assembly, filter screen and material receiving tray of a fly ash stirring device of the present invention Figure 2 .

[0029] Figure 5 is the structural schematic diagram of the material receiving tray of a fly ash stirring device of the present invention.

[0030] Figure 6 is the structural schematic diagram of the stirring rod of a fly ash stirring device of the present invention.

[0031] Figure 7 is the structural schematic diagram of the collar of a fly ash stirring device of the present invention.

[0032] Figure 8 is the cross-sectional assembly view of the filter screen, stirring rod, material receiving tray and collar of a fly ash stirring device of the present invention.

[0033] Reference Numerals:

[0034] 1. Stirring tank; 11. Premixing chamber; 12. Stirring chamber; 121. Discharge port; 13. Installation chamber; 14. Storage chamber; 141. Feed port; 15. Liquid storage chamber; 151. Liquid inlet; 2. Mushroom nozzle; 3. Material receiving tray; 31. Protrusion; 32. Fixed block; 4. Filter screen; 41. Movable ring; 42. Elastic telescopic rod; 43. Limiting plate; 44. Limiting hole; 5. Stirring rod; 51. Stirring fin; 52. Motor I; 53. Bevel gear I; 54. Bevel gear II; 55. Limiting groove; 56. Double-threaded section; 57. Elastic block; 6. Ring sleeve; 61. Guide rod; 62. Ring groove; 63. Wedge block; 7. Feeding pipe; 71. Feeding rod; 72. Spiral blade; 73. Motor II; 74. Bevel gear III; 75. Bevel gear IV; 8. Water pipe; 81. Water pump; 9. Partition board. Detailed implementation manners

[0035] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but should not be construed as a limitation to the present invention.

[0036] As Figures 1 to 8 shown, a fly ash stirring device of the present invention includes a stirring tank 1 and a stirring assembly. The stirring tank 1 is sequentially provided with a premixing chamber 11, a stirring chamber 12 and a storage chamber 14 from top to bottom. The stirring assembly is arranged in the stirring chamber 12. The storage chamber 14 is used for storing fly ash. A mushroom nozzle 2 for spraying a hemispherical water curtain is arranged in the premixing chamber 11. A material receiving tray 3 and a driving assembly for driving the material receiving tray 3 to rotate are arranged below the mushroom nozzle 2. A filter screen 4 is arranged between the premixing chamber 11 and the stirring chamber 12. The filter screen 4 is located below the material receiving tray 3. A feeding assembly is arranged between the storage chamber 14 and the premixing chamber 11. The discharge port of the feeding assembly is located above the material receiving tray 3.

[0037] The mushroom nozzle 2 is a prior art, and its specific structure will not be described in detail here. The mushroom nozzle 2 is used for spraying washing liquid so that the washing liquid forms a hemispherical water curtain above and around the material receiving tray 3. The feeding assembly conveys the fly ash in the storage chamber 14 to the material receiving tray 3. The driving assembly drives the material receiving tray 3 to rotate. The fly ash is dispersed to the periphery of the material receiving tray 3 under the action of centrifugal force, combines with the water curtain formed by the washing liquid, and falls from the filter screen 4 into the stirring chamber 12.

[0038] By arranging the mushroom nozzle 2, a hemispherical water curtain is formed above the material receiving tray 3 to cover the fly ash, which improves the problem of easy dust generation when fly ash is introduced. Moreover, the fly ash is conveyed from bottom to top and spreads to the outer periphery of the material receiving tray 3 under the rotation of the material receiving tray 3, which is beneficial to the preliminary mixing of the fly ash and the water curtain in the premixing chamber 11 and improves the problem of easy caking when a large amount of fly ash contacts the washing liquid mentioned in the background art.

[0039] As Figure 2 and Figure 3 shown, the stirring assembly includes a first driving member and a stirring rod 5. A stirring fin 51 is fixedly connected to the outer periphery of the stirring rod 5. The first driving member includes a first motor 52, a first bevel gear 53, and a second bevel gear 54. An installation cavity 13 is provided below the stirring cavity 12 of the stirring tank 1. The first motor 52 is fixedly installed in the installation cavity 13. The first bevel gear 53 is fixedly connected to the output end of the first motor 52. The stirring rod 5 penetrates into the installation cavity 13 and is fixedly connected to the second bevel gear 54. The second bevel gear 54 meshes with the first bevel gear 53. The first motor 52 drives the first bevel gear 53 to rotate. The first bevel gear 53 drives the stirring rod 5 to rotate through the second bevel gear 54, and the stirring rod 5 drives the stirring fin 51 to rotate. After pre-mixing, the fly ash and the washing liquid fall from the mesh holes of the filter screen 4 into the stirring cavity 12. The stirring fin 51 continues to stir and mix the fly ash and the washing liquid, which is beneficial to the full leaching of soluble substances such as chlorides and heavy metals in the fly ash.

[0040] As Figures 2 to 6 shown, the top end of the stirring rod 5 penetrates through the filter screen 4 into the pre-mixing cavity 11. The material receiving tray 3 is sleeved on the outer periphery of the stirring rod 5. The driving assembly includes a limiting groove 55 formed on the outer periphery of the stirring rod 5 and a convex block 31 fixedly connected to the material receiving tray 3. The convex block 31 is located in the limiting groove 55. When the stirring rod 5 rotates, the material receiving tray 3 is driven to rotate synchronously through the cooperation of the convex block 31 and the limiting groove 55. By driving the material receiving tray 3 to rotate synchronously through the stirring rod 5, there is no need to separately provide a driving source for the material receiving tray 3, reducing the production cost.

[0041] As Figures 5 to 8 shown, a double-threaded section 56 is provided on the outer periphery of the stirring rod 5. A ring sleeve 6 is provided between the material receiving tray 3 and the stirring rod 5. The ring sleeve 6 is connected in cooperation with the double-threaded section 56, and a guide rod 61 penetrating through the filter screen 4 is fixedly connected to the bottom of the ring sleeve 6. The filter screen 4 and the stirring tank 1 cannot rotate relative to each other. The limiting groove 55 extends vertically. The material receiving tray 3 is rotatably connected to the ring sleeve 6. When the stirring rod 5 rotates, the ring sleeve 6 is driven to reciprocate in the up and down direction through the double-threaded section 56, and the ring sleeve 6 drives the material receiving tray 3 to reciprocate in the up and down direction. At the same time, the material receiving tray 3 rotates synchronously with the stirring rod 5.

[0042] Through the cooperation of the double-threaded section 56 and the ring sleeve 6, the material receiving tray 3 is driven to reciprocate up and down, increasing the scattering area of the fly ash, which is beneficial to the fly ash to better pre-mix with the water curtain formed by the washing liquid, further reducing the probability of forming lumps; and when there are lumps filtered on the filter screen 4, the material receiving tray 3 contacts and rotates with the filter screen 4, and can roll over the lumps to break the lumps.

[0043] As Figure 2 、 Figure 4 、 Figure 6 and Figure 8As shown in the figure, the filter screen 4 is slidably connected to the mixing tank 1 in the vertical direction. A movable ring 41 is rotatably connected to the bottom of the filter screen 4. The movable ring 41 is elastically connected to the mixing rod 5 in the vertical direction through an elastic telescopic rod 42. A limiting plate 43 is fixedly connected to the movable ring 41. A limiting hole 44 extending in the horizontal direction is formed in the limiting plate 43. An elastic block 57 adapted to the limiting hole 44 is elastically connected to the outer periphery of the mixing rod 5. The end of the elastic block 57 is hemispherical.

[0044] When the ring sleeve 6 drives the material holding tray 3 to move downward to contact the filter screen 4, the filter screen 4 and the movable ring 41 are squeezed to move downward. When the limiting plate 43 contacts the elastic block 57, the limiting plate 43 squeezes the end of the elastic block 57 to make the elastic block 57 move in the direction close to the mixing rod 5. When the elastic block 57 is aligned with the limiting hole 44, the elastic block 57 enters the limiting hole 44. Then, the ring sleeve 6 drives the material holding tray 3 to move upward. After the filter screen 4 loses the extrusion of the ring sleeve 6 and the material holding tray 3, the elastic force of the elastic telescopic rod 42 pushes the movable ring 41 to move upward. The edge of the limiting hole 44 squeezes the elastic block 57 to make the elastic block 57 move in the direction close to the mixing rod 5. After the elastic block 57 completely escapes from the limiting hole 44, the elastic telescopic rod 42 pushes the movable ring 41 and the filter screen 4 to quickly pop upward, so that the fly ash in the mesh holes of the filter screen 4 vibrates into the mixing cavity 12, improving the clogging condition of the filter screen 4.

[0045] As Figure 5 and Figure 7 shown in the figure, a ring groove 62 is formed in the outer periphery of the ring sleeve 6. The bottom of the ring groove 62 is provided with inclined wedge blocks 63 at equal intervals. The inclined surfaces of the inclined wedge blocks 63 are inclined upward from bottom to top in the rotation direction of the mixing rod 5. A fixing block 32 adapted to the inclined wedge blocks 63 is fixedly connected to the material holding tray 3. The material holding tray 3 is elastically matched with the ring sleeve 6 in the vertical direction through a spring. During the rotation of the material holding tray 3, the inclined surface of the inclined wedge block 63 pushes the fixing block 32 to drive the material holding tray 3 to move upward. When the fixing block 32 is separated from the inclined wedge block 63, the elastic force of the spring resets the material holding tray 3, so as to realize the continuous vibration of the material holding tray 3 during rotation, which is beneficial to the dispersion of fly ash and makes the fly ash mix more evenly and fully with the water washing liquid.

[0046] As Figures 2 to 4 and Figure 8 shown in the figure, the feeding assembly includes a feeding pipe 7 arranged inside the mixing rod 5, a feeding rod 71 arranged inside the feeding pipe 7, and a second driving member for driving the feeding rod 71 to rotate. A spiral blade 72 is fixedly connected to the outer periphery of the feeding rod 71. The bottom end of the feeding pipe 7 is located in the storage cavity 14, and the top end is located above the material holding tray 3. The second driving member drives the feeding rod 71 to drive the spiral blade 72 to rotate, and the spiral blade 72 conveys the fly ash in the storage cavity 14 to the top of the feeding pipe 7.

[0047] The mixing tank 1 is provided with a liquid storage cavity 15 below the material storage cavity 14. A water delivery pipe 8 is arranged in the liquid storage cavity 15. The water delivery pipe 8 penetrates through the feeding rod 71 and extends above the feeding rod 71. The mushroom-shaped nozzle 2 is connected to the top end of the water delivery pipe 8. A water pump 81 is arranged in the liquid storage cavity 15. The water pump 81 is connected to the bottom end of the water delivery pipe 8. The liquid storage cavity 15 can be pre-filled with a washing liquid. The water pump 81 pumps the washing liquid into the water delivery pipe 8 and transports it to the mushroom-shaped nozzle 2 through the delivery pipe, so that the mushroom-shaped nozzle 2 sprays out a hemispherical water curtain.

[0048] The second driving member includes a second motor 73, a third bevel gear 74 and a fourth bevel gear 75. The second motor 73 is fixedly installed on the top of the liquid storage cavity 15. The third bevel gear 74 is fixedly connected to the output end of the second motor 73. The feeding rod 71 penetrates into the liquid storage cavity 15 and is fixedly connected to the fourth bevel gear 75. The fourth bevel gear 75 meshes with the third bevel gear 74. The second motor 73 drives the third bevel gear 74 to rotate. The third bevel gear 74 drives the fourth bevel gear 75 and the feeding rod 71 to rotate. The feeding rod 71 drives the spiral blade 72 to rotate for feeding. It should be noted that the liquid level of the washing liquid in the liquid storage cavity 15 is lower than the bottom of the second motor 73 to ensure the normal operation of the second motor 73 and extend the service life of the second motor 73.

[0049] As Figure 1 and Figure 2 As shown in the figure, the pre-mixing cavity 11 and the mixing cavity 12 in the mixing tank 1 are separated by a filter screen 4. The mixing cavity 12 and the installation cavity 13, the installation cavity 13 and the material storage cavity 14, and the material storage cavity 14 and the liquid storage cavity 15 are respectively separated by a partition plate 9. The mixing tank 1 is provided with a discharge port 121 corresponding to the mixing cavity 12, a feed port 141 corresponding to the material storage cavity 14, and a liquid inlet 151 corresponding to the liquid storage cavity 15.

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0052] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A fly ash stirring device, comprising a stirring tank and a stirring assembly, characterized in that, Inside the mixing tank, a pre-mixing chamber, a stirring chamber, and a storage chamber are sequentially arranged from top to bottom. The stirring assembly is arranged in the stirring chamber. The storage chamber is used to store fly ash. A mushroom-shaped nozzle for spraying a hemispherical water curtain is arranged in the pre-mixing chamber. Below the mushroom-shaped nozzle, a material receiving tray and a driving assembly for driving the material receiving tray to rotate are arranged. A filter screen is arranged between the pre-mixing chamber and the stirring chamber. The filter screen is located below the material receiving tray. A feeding assembly is arranged between the storage chamber and the pre-mixing chamber. The discharge port of the feeding assembly is located above the material receiving tray. The mushroom-shaped nozzle is used to spray the washing liquid so that the washing liquid forms a water curtain above and around the material receiving tray. The feeding assembly transports the fly ash in the storage chamber to the material receiving tray. The driving assembly drives the material receiving tray to rotate. Under the action of centrifugal force, the fly ash disperses to the periphery of the material receiving tray, combines with the water curtain formed by the washing liquid, and falls from the filter screen into the stirring chamber. The stirring assembly includes a driving member one and a stirring rod. Stirring wings are fixedly connected to the outer periphery of the stirring rod. The driving member one drives the stirring rod to drive the stirring wings to rotate. The top end of the stirring rod penetrates through the filter screen into the pre-mixing chamber. The material receiving tray is sleeved on the outer periphery of the stirring rod. The driving assembly includes a limiting groove formed on the outer periphery of the stirring rod and a convex block fixedly connected to the material receiving tray. The convex block is located in the limiting groove. When the stirring rod rotates, the material receiving tray is driven to rotate synchronously through the cooperation of the convex block and the limiting groove. A double-threaded section is arranged on the outer periphery of the stirring rod. A ring sleeve is arranged between the material receiving tray and the stirring rod. The ring sleeve is in fit connection with the double-threaded section. And a guiding rod penetrating through the filter screen is fixedly connected to the bottom of the ring sleeve. The limiting groove extends vertically. The material receiving tray is rotatably connected to the ring sleeve. When the stirring rod rotates, the ring sleeve is driven to reciprocate in the up and down direction through the double-threaded section. The ring sleeve drives the material receiving tray to reciprocate in the up and down direction. At the same time, the material receiving tray rotates synchronously with the stirring rod. A ring groove is formed on the outer periphery of the ring sleeve. Wedge blocks are evenly arranged at intervals at the bottom of the ring groove. The inclined surface of the wedge block is inclined from bottom to top in the rotation direction of the stirring rod. A fixing block adapted to the wedge block is fixedly connected to the material receiving tray. And the material receiving tray is elastically cooperated with the ring sleeve in the vertical direction through a spring. During the rotation of the material receiving tray, the inclined surface of the wedge block pushes the fixing block to drive the material receiving tray to move upward. When the fixing block is separated from the wedge block, the elastic force of the spring resets the material receiving tray.

2. The fly ash stirring device according to claim 1, characterized in that, The driving member one includes a motor one, a bevel gear one, and a bevel gear two. An installation chamber is arranged below the stirring chamber of the mixing tank. The motor one is fixedly installed in the installation chamber. The bevel gear one is fixedly connected to the output end of the motor one. The stirring rod penetrates into the installation chamber and is fixedly connected to the bevel gear two. The bevel gear two is meshed with the bevel gear one.

3. The fly ash stirring device according to claim 1, characterized in that The filter screen is slidably connected to the mixing tank in the vertical direction. A movable ring is rotatably connected to the bottom of the filter screen. The movable ring is elastically connected to the stirring rod in the vertical direction through an elastic telescopic rod. A limiting plate is fixedly connected to the movable ring. A limiting hole extending in the horizontal direction is formed on the limiting plate. A spring block adapted to the limiting hole is elastically connected to the outer periphery of the stirring rod. The end of the spring block is hemispherical. When the ring sleeve drives the material receiving tray to move downward to contact the filter screen, the filter screen and the movable ring are squeezed to move downward until the spring block enters the limiting hole.

4. The fly ash stirring device according to claim 1, wherein The feeding component includes a feeding pipe arranged inside the stirring rod, a feeding rod arranged inside the feeding pipe, and a second driving member for driving the feeding rod to rotate. A spiral blade is fixedly connected to the outer periphery of the feeding rod. The bottom end of the feeding pipe is located in the storage cavity, and the top end is located above the material receiving tray. The second driving member drives the feeding rod to drive the spiral blade to rotate to convey fly ash.

5. The fly ash stirring device according to claim 4, characterized in that, A liquid storage cavity is arranged below the storage cavity of the stirring tank. A water delivery pipe is arranged in the liquid storage cavity. The water delivery pipe penetrates through the feeding rod and extends above the feeding rod. The mushroom-shaped nozzle is connected to the top end of the water delivery pipe. A water pump is arranged in the liquid storage cavity, and the water pump is connected to the bottom end of the water delivery pipe.

6. The fly ash stirring device according to claim 5, characterized in that The second driving member includes a second motor, a third bevel gear, and a fourth bevel gear. The second motor is fixedly installed at the top of the liquid storage cavity. The third bevel gear is fixedly connected to the output end of the second motor. The feeding rod penetrates into the liquid storage cavity and is fixedly connected to the fourth bevel gear. The fourth bevel gear meshes with the third bevel gear.

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