Fly ash stirring device

Abstract

The invention relates to the technical field of fly ash stirring, and particularly discloses a fly ash stirring device which comprises a stirring tank and a stirring assembly, a premixing cavity, a stirring cavity and a storage cavity are sequentially arranged in the stirring tank from top to bottom, the stirring assembly is arranged in the stirring cavity, and the storage cavity is used for storing fly ash. A mushroom spray head used for spraying out a hemispherical water curtain is arranged in the premixing cavity, a material containing disc and a driving assembly used for driving the material containing disc to rotate are arranged below the mushroom spray head, a filter screen is arranged between the premixing cavity and the stirring cavity, the filter screen is located below the material containing disc, and a feeding assembly is arranged between the material storage cavity and the premixing cavity; a discharge port of the feeding assembly is located above the containing disc. According to the fly ash stirring device disclosed by the invention, fly ash is covered by the hemispherical water curtain, so that the problem that dust is easy to raise when the fly ash is introduced is solved, the fly ash is dispersed by the material containing disc, the fly ash and the water curtain are preliminarily mixed, and the problem that a large amount of fly ash is easy to cake when being in contact with washing liquid is solved.

Description

Technical Field

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

[0002] Fly ash is the material collected by the flue gas dust collector after the incineration of domestic waste. It contains a large amount of soluble heavy metals and dioxins and other harmful substances, and cannot be directly landfilled. In order to reduce the chloride ion content and the risk of heavy metal leaching in the fly ash, it is usually necessary to pre-treat the fly ash by washing. During the washing process, soluble substances such as chloride salts and heavy metals will be leached, thereby reducing the content of harmful substances in the fly ash.

[0003] The Chinese patent with the announcement number CN114177717B discloses a waste incineration fly ash treatment device, including a tank body, a scraper assembly located at the bottom of the tank body, and a mixing assembly for water washing and stirring the tank body, wherein the mixing assembly includes a main shaft and a driving member for driving the main shaft to move, the main shaft moves in the tank body while rotating, and a stirring member that moves with the main shaft is installed on the main shaft. The patent document drives the stirring member to move through the driving member, so that the stirring member moves in a plane, ensuring that each point in the tank body can be stirred periodically; the scraper assembly solves the problem of bottom solid phase accumulation and dead corners caused by fly ash sedimentation during water washing, resulting in poor water washing process.

[0004] However, in the actual use of the above patent document, when fly ash is added, dust will be caused, which will affect the working environment and cause damage to the health of the workers. In addition, the fly ash will stick to the inner wall, resulting in that part of the fly ash stuck to the inner wall cannot participate in the water washing treatment. In addition, directly mixing a large amount of fly ash with the washing liquid can easily cause the fly ash to agglomerate, resulting in incomplete water washing of the fly ash.

[0005] Therefore, the art needs a fly ash stirring device to solve the above problems. Summary of the invention

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

[0007] A fly ash stirring device of the present invention comprises a stirring tank and a stirring assembly, wherein a premixing chamber, a stirring chamber and a material storage chamber are sequentially arranged in the stirring tank from top to bottom, the stirring assembly is arranged in the stirring chamber, the material storage chamber is used to store fly ash, a mushroom nozzle for spraying a hemispherical water curtain is arranged in the premixing chamber, a material receiving tray and a driving assembly for driving the material receiving tray to rotate are arranged below the mushroom nozzle, a filter screen is arranged between the premixing chamber and the stirring chamber, the filter screen is located below the material receiving tray, a feeding assembly is arranged between the material storage chamber and the premixing chamber, and a material discharge port of the feeding assembly is located above the material receiving tray; The mushroom nozzle is used to spray washing liquid to form a water curtain above and around the receiving tray. The feeding component transports the fly ash in the storage chamber to the receiving tray. The driving component drives the receiving tray to rotate. The fly ash is dispersed around the receiving tray under the action of centrifugal force, combined with the water curtain formed by the washing liquid, and falls from the filter screen to the mixing chamber.

[0008] The present invention forms a hemispherical water curtain above the material receiving tray by arranging a mushroom nozzle, so that the hemispherical water curtain covers the fly ash, thereby improving the problem of dust being easily generated when the fly ash is introduced. Moreover, the fly ash is transported from bottom to top and dispersed toward the periphery of the material receiving tray as the material receiving tray rotates, which is beneficial to the preliminary mixing of the fly ash and the water curtain in the premixing chamber, thereby improving the problem of agglomeration easily generated when a large amount of fly ash contacts with the water washing liquid mentioned in the background technology.

[0009] Preferably, the stirring assembly includes a driving member and a stirring rod, and a stirring wing is fixedly connected to the outer periphery of the stirring rod. The driving member drives the stirring rod to drive the stirring wing to rotate.

[0010] Preferably, driving member 1 includes motor 1, bevel gear 1 and bevel gear 2, the mixing tank is provided with an installation cavity below the mixing cavity, motor 1 is fixedly installed in the installation cavity, bevel gear 1 is fixedly connected to the output end of motor 1, the mixing rod passes through the installation cavity and is fixedly connected to bevel gear 2, and bevel gear 2 is meshed with bevel gear 1.

[0011] After premixing in the premixing chamber, the fly ash and water washing liquid fall from the mesh of the filter screen into the mixing chamber, and the stirring wings continue to stir and mix the fly ash and the water washing liquid, which is beneficial to the full leaching of soluble substances such as chloride salts and heavy metals in the fly ash.

[0012] Preferably, the top end of the stirring rod passes through the filter screen into the pre-mixing chamber, and the material receiving 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 protrusion fixedly connected to the material receiving tray. The protrusion 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 protrusion and the limiting groove.

[0013] The mixing rod drives the material tray to rotate synchronously, and there is no need to set a separate driving source for the material tray, thereby reducing production costs.

[0014] Preferably, a bidirectional threaded section is provided on the outer periphery of the stirring rod, and a ring sleeve is provided between the material receiving plate and the stirring rod. The ring sleeve is cooperatively connected with the bidirectional threaded section, and a guide rod penetrating the filter screen is fixedly connected to the bottom of the ring sleeve. The limiting groove extends vertically, and the material receiving plate is rotatably connected to the ring sleeve. When the stirring rod rotates, the ring sleeve is driven to reciprocate in the up and down directions through the bidirectional threaded section, and the ring sleeve drives the material receiving plate to reciprocate in the up and down directions, and at the same time, the material receiving plate rotates synchronously with the stirring rod.

[0015] Through the cooperation of the bidirectional threaded section and the ring sleeve, the material holding plate is driven to reciprocate up and down, thereby increasing the scattering area of ​​fly ash, which is conducive to better pre-mixing of fly ash with the water curtain formed by the washing liquid, and further reducing the probability of lumps forming; and when lumps are filtered on the filter screen, the material holding plate contacts and rotates with the filter screen, which can crush the lumps and break them up.

[0016] Preferably, the filter is slidably connected to the stirring tank vertically, and the bottom of the filter is rotatably connected to a movable ring, which is elastically connected to the stirring rod vertically through an elastic telescopic rod, and a limit plate is fixedly connected to the movable ring. A limit hole extending in the horizontal direction is provided on the limit plate, and a spring block adapted to the limit hole is elastically connected to the outer periphery of the stirring rod, and the end of the spring block is hemispherical. When the ring sleeve drives the material containing plate to move downward and contact the filter, the filter and the movable ring are squeezed to move downward until the spring block enters the limit hole.

[0017] By squeezing the spring block into the limiting hole, when the material containing plate moves upward, the elastic force of the elastic telescopic rod pushes the movable ring upward, and the edge of the limiting hole squeezes the spring block to make it move toward the stirring rod. After the spring block is completely out of the limiting hole, the elastic telescopic rod pushes the movable ring and the filter screen to pop up upward quickly, thereby vibrating the fly ash in the mesh of the filter screen into the stirring chamber, improving the clogging of the filter screen.

[0018] Preferably, an annular groove is provided on the outer circumference of the annular sleeve, and inclined wedge blocks are evenly spaced at the bottom of the annular groove. The inclined surface of the inclined wedge block is inclined from bottom to top toward the rotation direction of the stirring rod. A fixed block adapted to the inclined wedge block is fixedly connected to the material receiving plate, and the material receiving plate is elastically matched with the annular sleeve along the vertical direction through a spring. During the rotation of the material receiving plate, the inclined surface of the inclined wedge block pushes the fixed block to drive the material receiving plate to move upward. When the fixed block is separated from the inclined wedge block, the elastic force of the spring resets the material receiving plate.

[0019] During the rotation of the material receiving tray, the inclined surface of the inclined wedge pushes the fixed block to drive the material receiving tray upward. When the fixed block is separated from the inclined wedge, the elastic force of the spring resets the material receiving tray, thereby achieving continuous vibration of the material receiving tray during the rotation process, which is beneficial to the dispersion of fly ash and makes the fly ash and water washing liquid mixed more evenly and fully.

[0020] 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 2 for driving the feeding rod to rotate. The outer periphery of the feeding rod is fixedly connected with a spiral blade. The bottom end of the feeding pipe is located in the storage cavity, and the top end is located above the feeding tray. The driving member 2 drives the feeding rod to drive the spiral blade to rotate to transport fly ash.

[0021] Preferably, the mixing tank is provided with a liquid storage chamber below the material storage chamber, a water pipe is provided in the liquid storage chamber, the water pipe passes through the feeding rod and extends to above the feeding rod, the mushroom nozzle is connected to the top of the water pipe, a water pump is provided in the liquid storage chamber, and the water pump is connected to the bottom end of the water pipe.

[0022] Preferably, driving member 2 includes motor 2, bevel gear 3 and bevel gear 4. Motor 2 is fixedly installed on the top of the liquid storage chamber, bevel gear 3 is fixedly connected to the output end of motor 2, the loading rod passes through the liquid storage chamber and is fixedly connected to bevel gear 4, and bevel gear 4 is meshed with bevel gear 3.

[0023] The beneficial effects of the present invention are as follows: the present invention forms a hemispherical water curtain above the material receiving tray by arranging a mushroom nozzle, so that the hemispherical water curtain covers the fly ash, thereby improving the problem of dust being easily generated when the fly ash is introduced, and the fly ash is transported from bottom to top, and dispersed toward the periphery of the material receiving tray as the material receiving tray rotates, which is beneficial to the preliminary mixing of the fly ash and the water curtain in the premixing chamber, thereby improving the problem of agglomeration that a large amount of fly ash is easily generated when it comes into contact with the water washing liquid as mentioned in the background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of a fly ash stirring device of the present invention.

[0025] Figure 2 It is a cross-sectional view of a fly ash stirring device of the present invention.

[0026] Figure 3 The present invention is a schematic diagram of the assembly of a stirring assembly, a filter screen and a material tray of a fly ash stirring device Figure 1 .

[0027] Figure 4 The present invention is a schematic diagram of the assembly of a stirring assembly, a filter screen and a material tray of a fly ash stirring device Figure 2 .

[0028] Figure 5 The present invention is a schematic structural diagram of a material containing plate of a fly ash stirring device.

[0029] Figure 6 The invention discloses a structural schematic diagram of a stirring rod of a fly ash stirring device.

[0030] Figure 7 The invention discloses a schematic structural diagram of a ring sleeve of a fly ash stirring device.

[0031] Figure 8 The invention discloses an assembly cross-sectional view of a filter screen, a stirring rod, a material containing plate and a ring sleeve of a fly ash stirring device.

[0032] Reference numerals: 1. Mixing tank; 11. Premixing chamber; 12. Mixing 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 tray; 31. Bump; 32. Fixed block; 4. Filter; 41. Movable ring; 42. Elastic telescopic rod; 43. Limit plate; 44. Limit hole; 5. Mixing rod; 51 , stirring wing; 52, motor one; 53, bevel gear one; 54, bevel gear two; 55, limit groove; 56, two-way thread section; 57, spring block; 6, ring sleeve; 61, guide rod; 62, ring groove; 63, inclined wedge block; 7, feeding pipe; 71, feeding rod; 72, spiral blade; 73, motor two; 74, bevel gear three; 75, bevel gear four; 8, water pipe; 81, water pump; 9, partition. DETAILED DESCRIPTION

[0033] 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.

[0034] like Figures 1 to 8 As shown, a fly ash stirring device of the present invention comprises a stirring tank 1 and a stirring assembly, wherein a premixing chamber 11, a stirring chamber 12 and a storage chamber 14 are sequentially arranged in the stirring tank 1 from top to bottom, the stirring assembly is arranged in the stirring chamber 12, the storage chamber 14 is used to store 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, and the discharge port of the feeding assembly is located above the material receiving tray 3.

[0035] The mushroom nozzle 2 is a prior art, and its specific structure is not described here. The mushroom nozzle 2 is used to spray water washing liquid, so that the water washing liquid forms a hemispherical water curtain above and around the material tray 3. The feeding component transports the fly ash in the storage chamber 14 to the material tray 3, and the driving component drives the material tray 3 to rotate. The fly ash is dispersed around the material tray 3 under the action of centrifugal force, combined with the water curtain formed by the water washing liquid, and falls from the filter screen 4 to the stirring chamber 12.

[0036] The present invention forms a hemispherical water curtain above the material receiving tray 3 by arranging a mushroom nozzle 2, so that the hemispherical water curtain covers the fly ash, thereby improving the problem of dust being easily generated when the fly ash is introduced. Moreover, the fly ash is transported from bottom to top, and is dispersed toward the 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, thereby improving the problem of agglomeration easily generated when a large amount of fly ash comes into contact with the water washing liquid mentioned in the background technology.

[0037] like Figure 2 and Figure 3 As shown, the stirring assembly includes a driving member 1 and a stirring rod 5, the outer periphery of the stirring rod 5 is fixedly connected with a stirring wing 51, the driving member 1 includes a motor 1 52, a bevel gear 1 53 and a bevel gear 2 54, the stirring tank 1 is provided with a mounting chamber 13 below the stirring chamber 12, the motor 1 52 is fixedly installed in the mounting chamber 13, the bevel gear 1 53 is fixedly connected to the output end of the motor 1 52, the stirring rod 5 penetrates the mounting chamber 13 and is fixedly connected to the bevel gear 2 54, and the bevel gear 2 54 is meshed with the bevel gear 1 53. The motor 1 52 drives the bevel gear 1 53 to rotate, the bevel gear 1 53 drives the stirring rod 5 to rotate through the bevel gear 2 54, and the stirring rod 5 drives the stirring wing 51 to rotate. After premixing in the premixing chamber 11, the fly ash and the washing liquid fall from the mesh of the filter screen 4 to the stirring chamber 12, and the stirring wing 51 continues to stir and mix the fly ash and the washing liquid, which is conducive to the full leaching of soluble substances such as chloride salts and heavy metals in the fly ash.

[0038] like Figures 2 to 6 As shown, the top end of the stirring rod 5 passes through the filter screen 4 to the premixing chamber 11, and the material tray 3 is sleeved on the outer periphery of the stirring rod 5. The driving assembly includes a limit groove 55 opened on the outer periphery of the stirring rod 5 and a protrusion 31 fixedly connected to the material tray 3. The protrusion 31 is located in the limit groove 55. When the stirring rod 5 rotates, the material tray 3 is driven to rotate synchronously through the cooperation of the protrusion 31 and the limit groove 55. The stirring rod 5 drives the material tray 3 to rotate synchronously, and there is no need to set a separate driving source for the material tray 3, which reduces the production cost.

[0039] like Figures 5 to 8 As shown, a bidirectional threaded section 56 is provided on the outer periphery of the stirring rod 5, and a ring sleeve 6 is provided between the material receiving tray 3 and the stirring rod 5. The ring sleeve 6 is connected with the bidirectional threaded section 56, and the bottom of the ring sleeve 6 is fixedly connected with a guide rod 61 that penetrates the filter screen 4, and the filter screen 4 and the stirring tank 1 cannot rotate relative to each other. The limiting groove 55 extends vertically, and the material receiving tray 3 is rotatably connected with 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 bidirectional threaded section 56, and the ring sleeve 6 drives the material receiving tray 3 to reciprocate in the up-and-down direction, and at the same time, the material receiving tray 3 rotates synchronously with the stirring rod 5.

[0040] Through the cooperation of the bidirectional threaded section 56 and the ring sleeve 6, the material holding plate 3 is driven to reciprocate up and down, thereby increasing the scattering area of ​​the fly ash, which is beneficial for better pre-mixing of the fly ash with the water curtain formed by the washing liquid, and further reducing the probability of forming lumps; and when lumps are filtered on the filter screen 4, the material holding plate 3 contacts and rotates with the filter screen 4, which can crush the lumps and break them.

[0041] like Figure 2 , Figure 4 , Figure 6 and Figure 8As shown, the filter screen 4 is slidably connected to the stirring tank 1 in the vertical direction, and the bottom of the filter screen 4 is rotatably connected to a movable ring 41, and the movable ring 41 is elastically connected to the stirring rod 5 in the vertical direction through an elastic telescopic rod 42, and a limiting plate 43 is fixedly connected to the movable ring 41, and a limiting hole 44 extending in the horizontal direction is provided on the limiting plate 43, and the outer periphery of the stirring rod 5 is elastically connected to a spring block 57 adapted to the limiting hole 44, and the end of the spring block 57 is hemispherical.

[0042] When the ring sleeve 6 drives the material holding tray 3 to move downward and 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 stirring rod 5. When the elastic block 57 is aligned with the limiting hole 44, the elastic block 57 enters the limiting hole 44, and then the ring sleeve 6 drives the material holding tray 3 to move upward. After the filter screen 4 loses the squeezing 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, and 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 stirring rod 5. After the elastic block 57 is completely out of the limiting hole 44, the elastic telescopic rod 42 pushes the movable ring 41 and the filter screen 4 to pop up upward quickly, so that the fly ash in the mesh of the filter screen 4 is vibrated into the stirring chamber 12, thereby improving the clogging of the filter screen 4.

[0043] like Figure 5 and Figure 7 As shown, the outer circumference of the ring sleeve 6 is provided with an annular groove 62, and the bottom of the annular groove 62 is evenly spaced with oblique wedges 63, and the inclined surface of the oblique wedge 63 is inclined from bottom to top in the direction of rotation of the stirring rod 5. The material tray 3 is fixedly connected with a fixed block 32 adapted to the oblique wedge 63, and the material tray 3 is elastically matched with the ring sleeve 6 in the vertical direction through a spring. During the rotation of the material tray 3, the inclined surface of the oblique wedge 63 pushes the fixed block 32 to drive the material tray 3 to move upward, and when the fixed block 32 is separated from the oblique wedge 63, the elastic force of the spring resets the material tray 3, so that the material tray 3 is continuously vibrated during the rotation, which is conducive to the dispersion of fly ash and makes the fly ash and the water washing liquid more evenly and fully mixed.

[0044] like Figures 2 to 4 as well as Figure 8 As shown, the feeding assembly includes a feeding pipe 7 arranged inside the stirring rod 5, a feeding rod 71 arranged inside the feeding pipe 7 and a driving member 2 for driving the feeding rod 71 to rotate. The outer periphery of the feeding rod 71 is fixedly connected with a spiral blade 72. The bottom end of the feeding pipe 7 is located in the storage chamber 14, and the top end is located above the material receiving tray 3. The driving member 2 drives the feeding rod 71 to drive the spiral blade 72 to rotate, and the spiral blade 72 transports the fly ash in the storage chamber 14 to the top of the feeding pipe 7.

[0045] The stirring tank 1 is provided with a liquid storage chamber 15 below the material storage chamber 14, and a water delivery pipe 8 is provided in the liquid storage chamber 15, and the water delivery pipe 8 penetrates the feeding rod 71 and extends to the top of the feeding rod 71, and the mushroom nozzle 2 is connected to the top of the water delivery pipe 8, and a water pump 81 is provided in the liquid storage chamber 15, and the water pump 81 is connected to the bottom of the water delivery pipe 8. Washing liquid can be put into the liquid storage chamber 15 in advance, and the water pump 81 pumps the washing liquid into the water delivery pipe 8, and delivers it to the mushroom nozzle 2 through the delivery pipe, so that the mushroom nozzle 2 sprays out a hemispherical water curtain.

[0046] The driving part 2 includes a motor 2 73, a bevel gear 3 74 and a bevel gear 4 75. The motor 2 73 is fixedly mounted on the top of the liquid storage chamber 15. The bevel gear 3 74 is fixedly connected to the output end of the motor 2 73. The feeding rod 71 penetrates into the liquid storage chamber 15 and is fixedly connected to the bevel gear 4 75. The bevel gear 4 75 is meshed with the bevel gear 3 74. The motor 2 73 drives the bevel gear 3 74 to rotate, the bevel gear 3 74 drives the bevel gear 4 75 and the feeding rod 71 to rotate, and the feeding rod 71 drives the spiral blade 72 to rotate and feed. It should be noted that the liquid level of the washing liquid in the liquid storage chamber 15 is lower than the bottom of the motor 2 73 to ensure the normal operation of the motor 2 73 and extend the service life of the motor 2 73.

[0047] like Figure 1 and Figure 2 As shown, the premixing chamber 11 and the stirring chamber 12 in the stirring tank 1 are separated by a filter screen 4, and the stirring chamber 12 and the installation chamber 13, the installation chamber 13 and the material storage chamber 14, and the material storage chamber 14 and the liquid storage chamber 15 are separated by a partition plate 9. The stirring tank 1 is provided with a discharge port 121 corresponding to the stirring chamber 12, a feed port 141 corresponding to the material storage chamber 14, and a liquid inlet 151 corresponding to the liquid storage chamber 15.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] 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 stirring device, comprising a stirring tank and a stirring assembly, characterized in that: A premixing chamber, a stirring chamber and a storage chamber are sequentially arranged in the stirring tank from top to bottom. The stirring assembly is arranged in the stirring chamber. The storage chamber is used to store fly ash. A mushroom nozzle for spraying a hemispherical water curtain is arranged in the premixing chamber. A material receiving tray and a driving assembly for driving the material receiving tray to rotate are arranged below the mushroom nozzle. A filter screen is arranged between the premixing 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 premixing chamber. The discharge port of the feeding assembly is located above the material receiving tray. The mushroom nozzle is used to spray washing liquid to form a water curtain above and around the receiving tray. The feeding component transports the fly ash in the storage chamber to the receiving tray. The driving component drives the receiving tray to rotate. The fly ash is dispersed around the receiving tray under the action of centrifugal force, combined with the water curtain formed by the washing liquid, and falls from the filter screen to the mixing chamber.

2. The fly ash stirring device according to claim 1, characterized in that: The stirring assembly comprises a driving member 1 and a stirring rod. The outer periphery of the stirring rod is fixedly connected with a stirring wing. The driving member 1 drives the stirring rod to drive the stirring wing to rotate.

3. The fly ash stirring device according to claim 2, characterized in that: The driving component 1 includes a motor 1, a bevel gear 1 and a bevel gear 2. The mixing tank is provided with an installation cavity below the mixing cavity. The motor 1 is fixedly installed in the installation cavity. The bevel gear 1 is fixedly connected to the output end of the motor 1. The stirring rod passes through the installation cavity and is fixedly connected to the bevel gear 2. The bevel gear 2 is meshed with the bevel gear 1.

4. The fly ash stirring device according to claim 2, characterized in that: The top end of the stirring rod passes through the filter screen into the pre-mixing chamber, and the material receiving 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 protrusion fixedly connected to the material receiving tray. The protrusion 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 protrusion and the limiting groove.

5. The fly ash stirring device according to claim 4, characterized in that: A bidirectional threaded section is provided on the outer periphery of the stirring rod, and a ring sleeve is provided between the material receiving plate and the stirring rod. The ring sleeve is cooperatively connected with the bidirectional threaded section, and a guide rod penetrating the filter screen is fixedly connected to the bottom of the ring sleeve. The limiting groove extends vertically, and the material receiving plate is rotatably connected to the ring sleeve. When the stirring rod rotates, the ring sleeve is driven to reciprocate in the up and down directions through the bidirectional threaded section, and the ring sleeve drives the material receiving plate to reciprocate in the up and down directions, and at the same time, the material receiving plate rotates synchronously with the stirring rod.

6. The fly ash stirring device according to claim 5, characterized in that: The filter is slidably connected to the mixing tank vertically, and the bottom of the filter is rotatably connected to a movable ring, which is elastically connected to the stirring rod vertically through an elastic telescopic rod, and a limit plate is fixedly connected to the movable ring, and a limit hole extending in the horizontal direction is provided on the limit plate. The outer periphery of the stirring rod is elastically connected to a spring block adapted to the limit hole, and the end of the spring block is hemispherical. When the ring sleeve drives the material containing plate to move downward and contact the filter, the filter and the movable ring are squeezed to move downward until the spring block enters the limit hole.

7. The fly ash stirring device according to claim 5, characterized in that: An annular groove is provided on the outer circumference of the ring sleeve, and inclined wedge blocks are evenly spaced at the bottom of the annular groove. The inclined surfaces of the inclined wedge blocks are inclined from bottom to top toward the rotation direction of the stirring rod. A fixed block adapted to the inclined wedge block is fixedly connected to the material receiving tray, and the material receiving tray is elastically matched with the ring sleeve along the vertical direction through a spring. During the rotation of the material receiving tray, the inclined surface of the inclined wedge block pushes the fixed block to drive the material receiving tray to move upward. When the fixed block is separated from the inclined wedge block, the elastic force of the spring resets the material receiving tray.

8. The fly ash stirring device according to claim 2, characterized in that: The feeding assembly includes a feeding pipe arranged inside the stirring rod, a feeding rod arranged inside the feeding pipe and a driving component 2 for driving the feeding rod to rotate. The outer periphery of the feeding rod is fixedly connected with a spiral blade. The bottom end of the feeding pipe is located in the storage cavity, and the top end is located above the feeding tray. The driving component 2 drives the feeding rod to drive the spiral blade to rotate to transport fly ash.

9. The fly ash stirring device according to claim 8, characterized in that: The mixing tank is provided with a liquid storage chamber below the material storage chamber, and a water pipe is provided in the liquid storage chamber. The water pipe passes through the feeding rod and extends to above the feeding rod. The mushroom nozzle is connected to the top of the water pipe. A water pump is provided in the liquid storage chamber, and the water pump is connected to the bottom of the water pipe.

10. The fly ash stirring device according to claim 9, characterized in that: Driving component 2 includes motor 2, bevel gear 3 and bevel gear 4. Motor 2 is fixedly installed on the top of the liquid storage chamber. Bevel gear 3 is fixedly connected to the output end of motor 2. The loading rod penetrates into the liquid storage chamber and is fixedly connected to bevel gear 4. Bevel gear 4 is meshed with bevel gear 3.

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