Efficient desalting device for waste incineration fly ash

Abstract

An efficient desalting device for waste incineration fly ash comprises an equipment base, a reaction tank, a stirring device and a controller, and the reaction tank is provided with a fly ash percolate feeding port, a reactant feeding port and a mixed liquid discharging port. The stirring device comprises a fixed base, a sliding base, a connecting frame, a first rotating shaft, a first connecting base, a plurality of first rotating blades, a second rotating shaft, a second connecting base, a plurality of second rotating blades, a plurality of third rotating blades, a first rotating motor and a second rotating motor; the first rotating blade corresponds to the gap position of the second rotating blade and the gap position of the third rotating blade, the motion trail of the first rotating blade does not coincide with the motion trail of the second rotating blade and the motion trail of the third rotating blade, and the rotating direction of the first rotating shaft is opposite to that of the second rotating shaft. The controller is electrically connected with the first rotating motor and the second rotating motor.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fly ash treatment equipment technical field especially relates to a kind of high-efficiency desalting device for waste incineration fly ash. BACKGROUND

[0002] In prior art, waste incineration method is the most common processing mode, a large amount of fly ash and fly ash leachate are generated in waste incineration process, and its processing mode is usually to add fly ash leachate and reaction reagent into reaction tank for sufficient reaction, so as to carry out desalination crystallization to solid mixture subsequently, remove pollutants such as chlorine ion and heavy metal ion in fly ash, but the fly ash desalination device in prior art has the following problems: first, the stirring device in existing desalination device can only stir in one plane, and the stirring effect is not good;Second, part of crystalline salt and dirt may adhere to the inner wall of reaction tank, which is difficult to clean after long-term accumulation, in addition, it will also pollute fly ash leachate in subsequent desalination process, resulting in that the discharged wastewater is unqualified;Third, when cleaning the inside of reaction tank, it needs to stop working, which greatly affects work efficiency and has high labor cost. SUMMARY

[0003] In order to solve the above problems, the utility model provides a kind of high -efficient desalination device for garbage incineration fly ash, which can ensure that fly ash leachate and reagent react fully, avoid dirt or crystalline salt attached to the inner wall of reaction tank, and automatically clean the reaction tank.The utility model discloses a kind of high -efficient desalination device for garbage incineration fly ash, including equipment base, the reaction tank connected to equipment base, stirring device and controller connected to equipment base, fly ash leachate feed inlet, reagent feed inlet and mixed liquor discharge port are equipped on the reaction tank, the stirring device includes fixedly connected to equipment base Fixed base, slidingly connected to fixed base sliding base, fixedly connected to sliding base connecting frame, movably connected to connecting frame first rotating shaft, fixedly connected to first rotating shaft first connecting base, fixedly connected to first connecting base A plurality of first rotating blades, second rotating shaft movably connected to the bottom of reaction tank, second connecting base fixedly connected to second rotating shaft, a plurality of second rotating blades fixedly connected to second connecting base, a plurality of third rotating blades fixedly connected to second connecting base, first rotating motor for driving first rotating shaft rotation and second rotating motor for driving second rotating shaft rotation, the first rotating blade is distributed in the form of circular ring with the central axis of first rotating shaft as the axis, the second rotating blade and third rotating blade are distributed in the form of circular ring with the central axis of second rotating shaft as the axis, the gap position of first rotating blade, second rotating blade and third rotating blade corresponds, the motion trajectory of first rotating blade does not coincide with the motion trajectory of second rotating blade and third rotating blade, the rotating direction of first rotating shaft and second rotating shaft is opposite, and the controller is electrically connected with first rotating motor and second rotating motor respectively.

[0004] By the above technical scheme, first, fly ash leachate and reagent are respectively introduced into the reaction tank through fly ash leachate feed inlet and reagent feed inlet, then the first rotating motor and the second rotating motor are controlled by the controller to drive the first rotating shaft and the second rotating shaft to rotate, thereby driving the first rotating blade connected to the first connecting base to rotate, at the same time, the hydraulic cylinder is controlled by the controller to drive the sliding base to slide in the vertical direction, thereby greatly increasing the stirring range of the first rotating blade, when the sliding base slides a certain distance, the first rotating blade is located between the second rotating blade and the third rotating blade, since the rotating direction of the first rotating shaft and the second rotating shaft is opposite, and the motion trajectory of the first rotating blade does not coincide with the motion trajectory of the second rotating blade and the third rotating blade, therefore, the stirring efficiency of the mixed liquid can be greatly improved, and the fly ash leachate and the reagent can react fully.

[0005] The further setting of the utility model discloses: still be equipped with the third connecting base fixedly connected on the first rotating shaft and the cleaning element fixedly connected on the third connecting base on the first rotating shaft, the shape size of the outer surface of the cleaning element is adapted to the reaction tank inner wall, the bottom position of the cleaning element is lower than the bottom position of the first rotating blade.

[0006] Adopt the above technical scheme, because the first rotating shaft is also equipped with the third connecting base fixedly connected on the first rotating shaft and the cleaning element fixedly connected on the third connecting base, therefore, when the first rotating shaft rotates, will drive the cleaning element to rotate simultaneously, because the shape size of the outer surface of the cleaning element is adapted to the reaction tank inner wall, and the bottom position of the cleaning element is lower than the bottom position of the first rotating blade, therefore, the cleaning element will clean the dirt or crystalline salt adhered on the reaction tank inner wall clean, thereby making the device can automatically complete the cleaning work, greatly reduce the labor cost.

[0007] The further setting of the utility model discloses: the surface of the cleaning element is equipped with a plurality of bosses, the boss is V-shaped, and the boss has certain elasticity.

[0008] Adopt the above technical scheme, because the surface of the cleaning element is equipped with a plurality of bosses, and the boss is V-shaped, therefore, when the cleaning element contacts the reaction tank inner wall, the boss will be extruded, increase the contact area between the cleaning element and the reaction tank inner wall, thereby improve the friction between the cleaning element and the reaction tank inner wall, improve the cleaning effect of the reaction tank inner wall.

[0009] The further setting of the utility model discloses: the mixed liquor discharge port is equipped with the electromagnetic valve fixedly connected on the first discharge pipe, connected on the first discharge pipe, the cleaning tank connected on the first discharge pipe, the filter screen connected on the cleaning tank and the second discharge pipe connected on the cleaning tank, the cleaning tank is equipped with waste liquid inlet and waste liquid outlet, the first discharge pipe and the second discharge pipe are connected to waste liquid inlet and waste liquid outlet respectively, the position of waste liquid inlet is lower than the position of filter screen, the position of waste liquid outlet is higher than the position of filter screen, and the controller is electrically connected with the electromagnetic valve.

[0010] According to the technical scheme, after the desalination of the fly ash leachate and the cleaning of the inner wall of the reaction tank are completed, the controller controls the electromagnetic valve to be opened, so that the waste liquid after the desalination and the dirt and crystallized salt adhered to the inner wall of the reaction tank are discharged to the cleaning box through the first discharge pipe; since the position of the waste liquid feeding port is lower than the position of the filter screen and the position of the waste liquid discharge port is higher than the position of the filter screen, the dirt is blocked by the filter screen and the waste liquid flows out of the waste liquid discharge port through the filter screen and is discharged through the second discharge pipe, so that the automation degree of the cleaning work is further improved, and in the process of mixing the fly ash leachate and the reaction agent, the staff can manually remove the accumulated dirt in the cleaning box, so that the working efficiency of the device is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] ATTACHED Figure 1 It is a sectional view of a desalination device for garbage incineration fly ash according to an embodiment of the present application.

[0012] 1 - equipment base, 2 - reaction tank, 3 - stirring device, 4 - controller, 5 - fly ash leachate feeding port, 6 - reaction agent feeding port, 7 - mixed liquid discharge port, 8 - fixed base, 9 - sliding base, 10 - connecting frame, 11 - first rotating shaft, 12 - first connecting base, 13 - first rotating blade, 14 - second rotating shaft, 15 - second connecting base, 16 - second rotating blade, 17 - third rotating blade, 18 - first rotating motor, 19 - second rotating motor, 20 - third connecting base, 21 - cleaning element, 22 - protrusion, 23 - first discharge pipe, 24 - electromagnetic valve, 25 - cleaning box, 26 - filter screen, 27 - second discharge pipe, 28 - waste liquid feeding port, 29 - waste liquid discharge port. DETAILED DESCRIPTION

[0013] For example, Figure 1The utility model discloses a kind of high-efficiency desalination devices for waste incineration fly ash, including equipment base 1, be connected to the reaction tank 2 of equipment base 1, stirring device 3 and controller 4 connected to equipment base 1, reaction tank 2 is equipped with fly ash percolate feed port 5, reaction agent feed port 6 and mixed liquor discharge port 7, stirring device 3 includes fixed base 8 fixedly connected to equipment base 1, sliding base 9 slidingly connected to fixed base 8, connecting frame 10 fixedly connected to sliding base 9, first rotating shaft 11 movably connected to connecting frame 10, first connecting base 12 fixedly connected to first rotating shaft 11, a plurality of first rotating blades 13 fixedly connected to first connecting base 12, second rotating shaft 14 movably connected to the bottom of reaction tank 2, second connecting base 15 fixedly connected to second rotating shaft 14, a plurality of second rotating blades 16 fixedly connected to second connecting base 15, a plurality of third rotating blades 17 fixedly connected to second connecting base 15, first rotating motor 18 for driving first rotating shaft 11 rotation and second rotating motor 19 for driving second rotating shaft 14 rotation, the first rotating blade 13 is distributed in a circle around with the central axis of first rotating shaft 11 as axis, the second rotating blade 16 and third rotating blade 17 are both distributed in a circle around with the central axis of second rotating shaft 14 as axis, the gap position of first rotating blade 13 corresponds to second rotating blade 16 and third rotating blade 17, the motion trajectory of first rotating blade 13 does not coincide with the motion trajectory of second rotating blade 16 and third rotating blade 17, the rotating direction of first rotating shaft 11 and second rotating shaft 14 is opposite, and the controller 4 is electrically connected with first rotating motor 18 and second rotating motor 19 respectively.

[0014] First, fly ash percolate and reaction agent are respectively introduced into the inside of reaction tank 2 through fly ash percolate feed port 5 and reaction agent feed port 6, then first rotating motor 18 and second rotating motor 19 are controlled by controller 4 to drive first rotating shaft 11 and second rotating shaft 14 to rotate respectively, so as to drive first rotating blade 13 connected to first connecting base 12 to rotate, at the same time, sliding base 9 is driven to slide along vertical direction by hydraulic cylinder controlled by controller 4, so that the stirring range of first rotating blade 13 is greatly increased, when sliding base 9 slides a certain distance, first rotating blade 13 is located between second rotating blade 16 and third rotating blade 17, because the rotating direction of first rotating shaft 11 and second rotating shaft 14 is opposite, and the motion trajectory of first rotating blade 13 does not coincide with the motion trajectory of second rotating blade 16 and third rotating blade 17, therefore, the stirring efficiency of mixed liquor can be greatly improved, and the reaction of fly ash percolate and reagent is ensured to be sufficient.

[0015] The first rotating shaft 11 is further provided with a third connecting base 20 fixedly connected to the first rotating shaft 11 and a cleaning element 21 fixedly connected to the third connecting base 20, an outer surface of the cleaning element 21 is matched in size and shape with an inner wall of the reaction tank 2, and a bottom position of the cleaning element 21 is lower than a bottom position of the first rotating blade 13.

[0016] Since the first rotating shaft 11 is further provided with the third connecting base 20 fixedly connected to the first rotating shaft 11 and the cleaning element 21 fixedly connected to the third connecting base 20, when the first rotating shaft 11 rotates, the cleaning element 21 is driven to rotate simultaneously. Since the outer surface of the cleaning element 21 is matched in size and shape with the inner wall of the reaction tank 2, and the bottom position of the cleaning element 21 is lower than the bottom position of the first rotating blade 13, the cleaning element 21 can clean dirt or crystallized salt attached to the inner wall of the reaction tank 2, so that the device can automatically complete the cleaning work, and the labor cost is greatly reduced.

[0017] The surface of the cleaning element 21 is provided with a plurality of protrusions 22, the protrusions 22 are in V shape, and the protrusions 22 have a certain elasticity.

[0018] Since the surface of the cleaning element 21 is provided with a plurality of protrusions 22, and the protrusions 22 are V-shaped, when the cleaning element 21 contacts the inner wall of the reaction tank 2, the protrusions 22 will be extruded, increasing the contact area between the cleaning element 21 and the inner wall of the reaction tank 2, thereby improving the friction between the cleaning element 21 and the inner wall of the reaction tank 2, and improving the cleaning effect on the inner wall of the reaction tank 2. The mixing liquid outlet 7 is provided with a first discharge pipe 23, an electromagnetic valve 24 connected to the first discharge pipe 23, a cleaning tank 25 connected to the first discharge pipe 23, a filter screen 26 connected to the cleaning tank 25, and a second discharge pipe 27 connected to the cleaning tank 25. The cleaning tank 25 is provided with a waste liquid inlet 28 and a waste liquid outlet 29. The first discharge pipe 23 and the second discharge pipe 27 are connected to the waste liquid inlet 28 and the waste liquid outlet 29 respectively. The position of the waste liquid inlet 28 is lower than that of the filter screen 26, and the position of the waste liquid outlet 29 is higher than that of the filter screen 26. The controller 4 is electrically connected to the electromagnetic valve 24. After the fly ash leachate desalination work and the cleaning work of the inner wall of the reaction tank 2 are completed, the electromagnetic valve 24 is opened by the controller 4 to make the waste liquid after desalination work and the dirt and crystalline salt adhered to the inner wall of the reaction tank 2 pass through the first discharge pipe 23 to the cleaning tank 25. Since the position of the waste liquid inlet 28 is lower than that of the filter screen 26, and the position of the waste liquid outlet 29 is higher than that of the filter screen 26, when the waste liquid and the dirt enter the cleaning tank 25, the dirt will be blocked by the filter screen 26, and the waste liquid will flow out of the waste liquid outlet 29 through the filter screen 26 and be discharged through the second discharge pipe 27. This can further improve the automation degree of the cleaning work, and during the mixing of the fly ash leachate and the reaction agent, the workers can manually remove the accumulated dirt in the cleaning tank 25, thereby further improving the working efficiency of the device.

Claims

1. A high-efficiency desalination device for waste incineration fly ash, characterized in that: The utility model provides a fly ash leachate reaction device, which comprises a device base, a reaction tank connected to the device base, a stirring device connected to the device base and a controller, the reaction tank is provided with a fly ash leachate feeding port, a reaction agent feeding port and a mixed solution discharge port, the stirring device comprises a fixed base fixedly connected to the device base, a sliding base slidingly connected to the fixed base, a connecting frame fixedly connected to the sliding base, a first rotating shaft movably connected to the connecting frame, a first connecting base fixedly connected to the first rotating shaft, a plurality of first rotating blades fixedly connected to the first connecting base, a second rotating shaft movably connected to the bottom of the reaction tank, a second connecting base fixedly connected to the second rotating shaft, a plurality of second rotating blades fixedly connected to the second connecting base, a plurality of third rotating blades fixedly connected to the second connecting base, a first rotating motor for driving the first rotating shaft to rotate and a second rotating motor for driving the second rotating shaft to rotate, the first rotating blades are circumferentially distributed around the central axis of the first rotating shaft, the second rotating blades and the third rotating blades are circumferentially distributed around the central axis of the second rotating shaft, the first rotating blades correspond to the gap positions of the second rotating blades and the third rotating blades, the movement track of the first rotating blades does not coincide with the movement track of the second rotating blades and the third rotating blades, the rotating directions of the first rotating shaft and the second rotating shaft are opposite, and the controller is electrically connected to the first rotating motor and the second rotating motor.

2. The high-efficiency desalination device for waste incineration fly ash according to claim 1, characterized in that: The first rotating shaft is further provided with a third connecting base fixedly connected to the first rotating shaft and a cleaning element fixedly connected to the third connecting base, the outer surface of the cleaning element is matched in shape and size with the inner wall of the reaction tank, and the bottom position of the cleaning element is lower than the bottom position of the first rotating blades.

3. The high-efficiency desalination device for waste incineration fly ash according to claim 2, characterized in that: The surface of the cleaning element is provided with a plurality of protrusions in V shape.

4. The high-efficiency desalination device for waste incineration fly ash according to claim 2, characterized in that: The mixed solution discharge port is provided with a first discharge pipe fixedly connected thereto, an electromagnetic valve connected to the first discharge pipe, a cleaning tank connected to the first discharge pipe, a filter screen connected to the cleaning tank and a second discharge pipe connected to the cleaning tank, the cleaning tank is provided with a waste liquid feeding port and a waste liquid discharge port, the first discharge pipe and the second discharge pipe are connected to the waste liquid feeding port and the waste liquid discharge port respectively, the position of the waste liquid feeding port is lower than the position of the filter screen, the position of the waste liquid discharge port is higher than the position of the filter screen, and the controller is electrically connected to the electromagnetic valve.

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