Fly ash humidifying and stirring device capable of preventing flying dust

Abstract

The fly ash humidifying and stirring device comprises a stirring tank, a driving motor is fixedly installed at the bottom of the stirring tank, a water tank is fixedly installed on the outer surface of a cover body, a sliding mechanism is arranged in the cover body, fly ash which is stirred and raised is pumped into the water tank through the sliding mechanism, and the water tank is fixedly installed on the bottom of the stirring tank. And the fly ash is absorbed by water. According to the fly ash humidifying and stirring device capable of preventing dust raising, materials needing to be stirred are put into the stirring tank, a feeding cover is closed, a driving motor rotates to drive a transmission shaft to rotate, dust raises along with stirring of the materials by a stirring rod, and a first gear clamped with the transmission shaft rotates along with the stirring rod; a second gear meshed with a first gear is rotated to drive a connecting rod to swing, so that a piston head slides in a pump shell, rising dust is sucked into the pump shell and then discharged into a water tank in cooperation with a one-way valve, and the dust is settled in the water tank and cannot float out of a stirring tank.

Description

Technical Field

[0001] The utility model relates to the technical field of fly ash processing, in particular to a fly ash humidifying and stirring device for preventing dust. Background Art

[0002] Fly ash is the fine dust captured and collected from the flue gas after coal combustion. Fly ash is the main solid waste discharged from coal-fired power plants. Fly ash mainly comes from thermal power plants and urban centralized heating boilers that use coal powder as fuel. Most of them are not wetted and discharged, and their activity is lower than that of dry ash, which pollutes the environment. In addition, wastewater consumes electricity and is not conducive to comprehensive utilization. In order to make more effective use of fly ash and better protect the environment, along with the maturity of dust removal and dry ash transportation technology, dry ash collection has become the development trend of fly ash collection in the future. Fly ash humidification and mixing is to add dry ash powder material into water for mixing and stirring, and discharge the composite material after stirring. However, the existing fly ash humidification mixer will raise large dust during stirring, causing dust to float everywhere and pollute the surrounding environment. Utility Model Content

[0003] The utility model aims to provide a fly ash humidifying and stirring device for preventing dust from being raised, so as to solve the problem in the above-mentioned background technology that the fly ash will be scattered and fly around when being stirred.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dust-proof fly ash humidifying and stirring device, comprising a stirring tank, a driving motor is fixedly installed on the bottom of the stirring tank, and the output end of the driving motor passes through the outer surface of the driving motor, and the driving motor and the stirring tank are concentrically designed, a cover body is snap-fittedly installed on the end of the stirring tank away from the driving motor, and the side surface of the cover body is in contact with the inner surface of the stirring tank, and the cover body is penetrated and installed on the end of the stirring tank away from the cover body, a water tank is fixedly installed on the outer surface of the cover body, and a drainage outlet pipe is penetrated and installed on the side surface of one end of the water tank, and a sliding mechanism is arranged inside the cover body, and the fly ash stirred up by the stirring is pumped into the interior of the water tank through the sliding mechanism, and the fly ash is absorbed by the water.

[0005] Preferably, the sliding mechanism includes: a pump casing, which is fixedly mounted inside the cover body, and pipelines are provided on both outer surfaces of the pump casing, one-way valves are provided on the pipelines on both sides of the pump casing, and the pipeline at one end of the pump casing passes through the outer surface of the cover body, and the end of the cover body located inside the mixing tank is inclined, the pipeline at the other end of the pump casing is connected to the water tank, and a piston head is slidably mounted inside the pump casing, and the piston head and the pump casing are connected by sliding friction, a connecting rod is rotatably mounted on one end of the piston head located outside the pump casing, and a feeding cover is rotatably mounted on the outer surface of the cover body, and the side surface of the feeding cover is in contact with the side surface of the cover body.

[0006] By adopting the above technical solution, a part of the fly ash can be prevented from being raised by closing the feeding cover, and as the driving motor rotates, the piston head will slide back and forth inside the pump casing. When the piston head is pulled out, the flying dust will be sucked into the pump casing, and when the piston head is pushed back, the air containing dust in the pump casing will be pushed out. In conjunction with the one-way valve, the dust will be poured into the water tank, settled, and then discharged back into the mixing tank through the drainage outlet pipe.

[0007] Preferably, a transmission mechanism is provided inside the stirring tank and the cover body, and the transmission mechanism drives the piston head to move back and forth.

[0008] With the above technical solution, the rotation of the driving motor drives the connecting rod to swing, causing the piston head to slide back and forth in the pump housing, thereby stirring the material and absorbing the floating fly ash.

[0009] Preferably, the transmission mechanism includes: a transmission shaft, which is fixedly installed on the output end of the driving motor, and a block-shaped protrusion is provided at the end of the transmission shaft away from the discharge pipe, a first gear is rotatably installed inside the cover body, and one end of the first gear penetrates the outer surface of the cover body, and the first gear is engaged with the block-shaped protrusion of the transmission shaft, a second gear is rotatably installed inside the cover body, and the second gear is meshed with the first gear, and the first gear and the cover body are concentrically designed, the diameter of the first gear is larger than the diameter of the second gear, and the side surface of the second gear is rotatably connected with a connecting rod.

[0010] By adopting the above technical solution, as the driving motor rotates, the transmission shaft will be driven to rotate, so that the first gear engaged with the transmission shaft will rotate, and through the diameter difference between the first gear and the second gear, the second gear will be driven to rotate faster, so that the piston head will move faster and the speed of absorbing dust will be accelerated.

[0011] Preferably, a stirring stick is fixedly mounted on the outer surface of the transmission shaft, and both ends of the stirring stick do not fit in the interior of the stirring tank, and the stirring stick and the stirring tank are concentrically designed, and a scraper is rotatably mounted on the outer surface of the transmission shaft, and the side surface of the scraper fits in the inner wall of the stirring tank.

[0012] By adopting the above technical solution, the transmission shaft can be rotated by the rotation of the driving motor, so that the stirring rod can rotate together, and the material put into the stirring tank can be stirred by the rotation of the stirring rod.

[0013] Preferably, a snap-fit ​​mechanism is provided between the scraper and the transmission shaft, and the rotation of the scraper is controlled by the snap-fit ​​mechanism to scrape and clean the inner wall of the mixing tank.

[0014] By adopting the above technical solution, after the mixing is completed, the fly ash remaining in the mixing tank can be scraped off by driving the scraper to reverse the driving motor.

[0015] Preferably, the engaging mechanism comprises: a ratchet, which is fixedly mounted on the outer surface of the transmission shaft, and the ratchet is located inside the scraper, and a ratchet is rotatably mounted inside the scraper, a spring is arranged between the scraper and the ratchet, and the ratchet is engaged with the ratchet.

[0016] By adopting the above technical solution, the scraper can be kept stationary when the driving motor rotates forward, thereby reducing the wear between the scraper and the inner wall of the mixing tank.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the anti-dust fly ash humidifying and stirring device:

[0018] 1. Put the material to be mixed into the mixing tank, close the feeding cover, and then start the drive motor. The rotation of the drive motor drives the transmission shaft to rotate. As the stirring rod stirs the material, dust will be raised, and the first gear engaged with the transmission shaft will rotate accordingly, causing the second gear engaged with the first gear to rotate, driving the connecting rod to swing, causing the piston head to slide inside the pump housing, cooperating with the one-way valve, sucking the rising dust into the pump housing and then discharging it into the water tank, settling the dust in the water tank, so that the dust will not float out of the mixing tank;

[0019] 2. With the rotation of the first gear, the second gear meshing with the first gear will be driven to rotate. The diameter difference between the first gear and the second gear will increase the rotation speed of the second gear, which will accelerate the swing of the connecting rod and make the piston head slide faster in the pump housing. With the one-way valve, the floating dust will be sent into the water tank and then discharged back into the mixing tank through the drainage outlet pipe, so that the floating materials will return to the mixing tank again, and the speed of dust absorption will be increased at the same time.

[0020] 3. By driving the motor in reverse rotation, the transmission shaft is driven to rotate in the reverse direction, so that the ratchet wheel rotates in the reverse direction, the ratchet teeth engage with the ratchet wheel, and the scraper rotates along with it to scrape the inner wall of the mixing tank. When the driving motor is in the forward direction, the ratchet teeth will jump up, the ratchet wheel will not engage with the ratchet teeth, and the scraper will not move. By controlling whether the scraper rotates along with it through forward and reverse rotation, the inner wall of the mixing tank is scraped and the wear between the inner wall of the mixing tank and the scraper can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the stirring tank, the cover body and the feeding cover of the utility model;

[0022] Figure 2 This is a schematic diagram of the cross-sectional three-dimensional structure of the stirring tank and the cover body of the utility model;

[0023] Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of the mixing tank and the discharge pipe of the utility model;

[0024] Figure 4This is a schematic diagram of the cross-sectional three-dimensional structure of the discharge pipe and the water tank of the utility model;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the pump housing and the piston head of the utility model;

[0026] Figure 6 It is a schematic diagram of the sectional three-dimensional structure of the scraper and the ratchet wheel of the utility model.

[0027] In the figure: 1. mixing tank; 2. cover body; 3. feeding cover; 4. driving motor; 5. water tank; 6. discharge pipe; 7. transmission shaft; 8. stirring stick; 9. scraper; 10. ratchet; 11. ratchet; 12. first gear; 13. second gear; 14. pump housing; 15. piston head; 16. connecting rod; 17. one-way valve; 18. drainage outlet pipe. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-6 The utility model provides a technical solution: a dust-proof fly ash humidifying and stirring device, comprising a stirring tank 1, a driving motor 4 is fixedly installed at the bottom of the stirring tank 1, and the output end of the driving motor 4 penetrates the outer surface of the driving motor 4, and the driving motor 4 and the stirring tank 1 are concentrically designed, and the end of the stirring tank 1 away from the driving motor 4 is clamped and installed with a cover body 2, and the side surface of the cover body 2 is in contact with the inner surface of the stirring tank 1, and the end of the stirring tank 1 away from the cover body 2 is penetrated and installed with the cover body 2, a water tank 5 is fixedly installed on the outer surface of the cover body 2, and a drainage outlet pipe 18 is penetrated and installed on the side surface of one end of the water tank 5, and a sliding mechanism is arranged inside the cover body 2, and the fly ash stirred and raised is pumped into the interior of the water tank 5 through the sliding mechanism, and the fly ash is absorbed by water.

[0030] When stirring is required, the material can be put into the stirring tank 1, and then the feeding cover 3 is closed and the drainage outlet pipe 18 is opened to drain the water in the water tank 5 into the stirring tank 1 to stir the fly ash.

[0031] The sliding mechanism includes: a pump casing 14, which is fixedly mounted inside the cover body 2, and pipelines are arranged on the outer surfaces of both sides of the pump casing 14, and the pipelines on both sides of the pump casing 14 are arranged with one-way valves 17, and the pipeline at one end of the pump casing 14 passes through the outer surface of the cover body 2, and the end of the cover body 2 located inside the mixing tank 1 is inclined, the pipeline at the other end of the pump casing 14 is connected to the water tank 5, and a piston head 15 is slidably mounted inside the pump casing 14, and the piston head 15 is in sliding friction connection with the pump casing 14, and a connecting rod 16 is rotatably mounted on the end of the piston head 15 located outside the pump casing 14, and a feeding cover 3 is rotatably mounted on the outer surface of the cover body 2, and the side surface of the feeding cover 3 is in contact with the side surface of the cover body 2.

[0032] As the driving motor 4 rotates, the transmission shaft 7 will be driven to rotate, so that the first gear 12 engaged with the transmission shaft 7 will rotate together, and the second gear 13 meshing with the first gear 12 will rotate, driving the connecting rod 16 to swing, so that the piston head 15 slides in the pump housing 14, and cooperates with the one-way valve 17 to draw the stirred dust into the pump housing 14, and then through the push of the piston head 15, the dust-containing air is pushed into the water tank 5, and the dust is settled in the water tank 5, and the feeding cover 3 is cooperated to remove the scattered fly ash.

[0033] A transmission mechanism is provided inside the mixing tank 1 and the cover body 2, and the piston head 15 is driven to move back and forth by the transmission mechanism. The transmission mechanism includes: a transmission shaft 7, the transmission shaft 7 is fixedly installed on the output end of the driving motor 4, and a block-shaped protrusion is provided on the end of the transmission shaft 7 away from the discharge pipe 6, a first gear 12 is rotatably installed inside the cover body 2, and one end of the first gear 12 passes through the outer surface of the cover body 2, and the first gear 12 is engaged with the block-shaped protrusion of the transmission shaft 7, a second gear 13 is rotatably installed inside the cover body 2, and the second gear 13 is meshed with the first gear 12, and the first gear 12 and the cover body 2 are concentrically designed, the diameter of the first gear 12 is larger than the diameter of the second gear 13, and the side surface of the second gear 13 is rotatably connected with a connecting rod 16.

[0034] As the driving motor 4 rotates, the transmission shaft 7 rotates together, driving the first gear 12 to rotate, and the second gear 13 meshing with the first gear 12 rotates. In conjunction with the diameter difference between the first gear 12 and the second gear 13, the rotation speed of the second gear 13 is increased, so that the connecting rod 16 drives the piston head 15 to accelerate its movement, thereby accelerating the speed of sucking the floating dust into the pump housing 14 and improving the speed of absorbing the dust.

[0035] A stirring rod 8 is fixedly installed on the outer surface of the transmission shaft 7, and the two ends of the stirring rod 8 do not fit the interior of the stirring tank 1, and the stirring rod 8 and the stirring tank 1 are concentrically designed. A scraper 9 is rotatably installed on the outer surface of the transmission shaft 7, and the side surface of the scraper 9 fits the inner wall of the stirring tank 1.

[0036] The transmission shaft 7 is driven to rotate by the rotation of the driving motor 4, and the stirring rod 8 is driven to stir the fly ash put into the mixing tank 1. The fly ash is stirred in coordination with the water discharged from the drainage outlet pipe 18. At the same time, through the engagement of the transmission shaft 7 and the first gear 12, the cover body 2 can be removed from the mixing tank 1, and the interior of the mixing tank 1 can be inspected and cleaned.

[0037] A locking mechanism is provided between the scraper 9 and the transmission shaft 7, and the rotation of the scraper 9 is controlled by the locking mechanism to scrape and clean the inner wall of the mixing tank 1. The locking mechanism includes: a ratchet 10, the ratchet 10 is fixedly mounted on the outer surface of the transmission shaft 7, and the ratchet 10 is located inside the scraper 9, and a ratchet 11 is rotatably installed inside the scraper 9, a spring is provided between the scraper 9 and the ratchet 11, and the ratchet 11 is engaged with the ratchet 10.

[0038] When the mixing is completed, the material will be discharged from the discharge pipe 6 for transportation. At this time, the reverse rotation of the driving motor 4 will drive the ratchet 10 to rotate in the reverse direction, so that the pop-up ratchet 11 engages with the ratchet 10, driving the scraper 9 to rotate in the reverse direction to scrape off the residual material on the inner wall of the mixing tank 1. At the same time, when the driving motor 4 rotates forward, the scraper 9 will not rotate with it. The rotation of the scraper 9 can be controlled by the forward and reverse rotation of the driving motor 4, and the wear of the scraper 9 and the inner wall of the mixing tank 1 can be reduced.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust-proof fly ash humidifying and stirring device, comprising a stirring tank (1), a driving motor (4) is fixedly mounted on the bottom of the stirring tank (1), and the output end of the driving motor (4) penetrates the outer surface of the driving motor (4), and the driving motor (4) and the stirring tank (1) are designed to be concentric, a cover body (2) is snap-fittedly mounted on the end of the stirring tank (1) away from the driving motor (4), and the side surface of the cover body (2) is in contact with the inner surface of the stirring tank (1), and the cover body (2) is penetrated and installed on the end of the stirring tank (1) away from the cover body (2), a water tank (5) is fixedly mounted on the outer surface of the cover body (2), and a drainage outlet pipe (18) is penetrated and installed on the side surface of one end of the water tank (5), characterized in that: The cover body (2) is provided with a sliding mechanism inside, and the fly ash stirred and raised is pumped into the inside of the water tank (5) through the sliding mechanism, and the fly ash is absorbed by the water.

2. The dust-proof fly ash humidifying and stirring device according to claim 1, characterized in that: The sliding mechanism comprises: a pump casing (14), the pump casing (14) being fixedly mounted inside the cover body (2), and pipelines being arranged on both sides of the outer surfaces of the pump casing (14), and one-way valves (17) being arranged on the pipelines on both sides of the pump casing (14), and the pipeline at one end of the pump casing (14) passing through the outer surface of the cover body (2), and the end of the cover body (2) located inside the stirring tank (1) is inclined, the pipeline at the other end of the pump casing (14) is connected to the water tank (5), and a piston head (15) is slidably mounted inside the pump casing (14), and the piston head (15) is in sliding friction connection with the pump casing (14), and a connecting rod (16) is rotatably mounted on one end of the piston head (15) located outside the pump casing (14), and a feeding cover (3) is rotatably mounted on the outer surface of the cover body (2), and the side surface of the feeding cover (3) is in contact with the side surface of the cover body (2).

3. The anti-dust fly ash humidifying and stirring device according to claim 1, characterized in that: A transmission mechanism is provided inside the stirring tank (1) and the cover body (2), and the piston head (15) is driven to move back and forth by the transmission mechanism.

4. The dust-proof fly ash humidifying and stirring device according to claim 3 is characterized in that: The transmission mechanism comprises: a transmission shaft (7), the transmission shaft (7) is fixedly mounted on the output end of the driving motor (4), and a block-shaped protrusion is provided at one end of the transmission shaft (7) away from the discharge pipe (6), a first gear (12) is rotatably mounted inside the cover body (2), one end of the first gear (12) passes through the outer surface of the cover body (2), and the first gear (12) is engaged with the block-shaped protrusion of the transmission shaft (7), a second gear (13) is rotatably mounted inside the cover body (2), and the second gear (13) is meshed with the first gear (12), and the first gear (12) and the cover body (2) are concentrically designed, the diameter of the first gear (12) is larger than the diameter of the second gear (13), and the side surface of the second gear (13) is rotatably connected with a connecting rod (16).

5. The dust-proof fly ash humidifying and stirring device according to claim 4, characterized in that: A stirring rod (8) is fixedly mounted on the outer surface of the transmission shaft (7), and the two ends of the stirring rod (8) do not fit in with the interior of the stirring tank (1), and the stirring rod (8) and the stirring tank (1) are designed to be concentric, and a scraper (9) is rotatably mounted on the outer surface of the transmission shaft (7), and the side surface of the scraper (9) fits in with the inner wall of the stirring tank (1).

6. The dust-proof fly ash humidifying and stirring device according to claim 5, characterized in that: A snap-fit ​​mechanism is provided between the scraper (9) and the transmission shaft (7), and the rotation of the scraper (9) is controlled by the snap-fit ​​mechanism to scrape and clean the inner wall of the stirring tank (1).

7. The dust-proof fly ash humidifying and stirring device according to claim 6, characterized in that: The engaging mechanism comprises: a ratchet (10), the ratchet (10) being fixedly mounted on the outer surface of the transmission shaft (7), and the ratchet (10) being located inside the scraper (9), and a ratchet (11) being rotatably mounted inside the scraper (9), a spring being arranged between the scraper (9) and the ratchet (11), and the ratchet (11) being engaged with the ratchet (10).

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