Fly ash pickling pulping device

Abstract

The utility model discloses a fly ash pickling pulping device which comprises a pickling pulping device body, a cover plate, an acid inlet mechanism and a liquid inlet mechanism, and the pickling pulping device is provided with a material inlet, an acid liquid inlet, a washing liquid inlet and a crane beam. According to the device, pickling and pulping are integrated, the process steps are reduced, acid mist and raised dust are avoided, the fly ash can be subjected to pickling pretreatment to the maximum extent, meanwhile, the device body is made of a concrete material, the cost can be greatly reduced, and enterprise benefits are increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste incineration fly ash treatment, and particularly relates to a fly ash pickling and pulping device. Background Art

[0002] Municipal solid waste incineration will generate 3%-5% of fly ash. The main components of fly ash are similar to those in cement raw materials, i.e., SiO2-Al2O3-CaO-Fe2O3, and can be used as a substitute raw material for cement production for resource utilization.

[0003] Meanwhile, fly ash usually contains certain toxic organic pollutants and heavy metals with a relatively high leaching concentration. Although the high-temperature calcination in a cement kiln can largely incinerate toxic organic pollutants and fix some heavy metals, the excessive heavy metal content will still lead to the over-standard emission of cement kiln flue gas, and the high concentration of chlorine in fly ash will also cause serious harm to the production safety of the cement kiln. Therefore, it is necessary to pre-treat fly ash for co-disposal in a cement kiln to remove heavy metals and chloride ions in the fly ash.

[0004] The acid method can effectively leach heavy metals in fly ash and also dissolve a large amount of insoluble chloride ions, which is helpful for the subsequent resource treatment of fly ash. The traditional pickling device is a tank made of fiberglass. The cost of fiberglass is relatively high, and its sealing performance is poor, which is not convenient for the pickling pre-treatment of fly ash. The pickling device is usually integrally formed, which is inconvenient for maintenance and cleaning by relevant staff. Traditional fly ash needs to be pulped in a pulping tank before entering the pickling device, and the process is cumbersome. And a large amount of dust is generated during the pulping process, and the acid solution added to the pickling device will also cause acid mist. Therefore, there is an urgent need for a fly ash pickling and pulping device to solve the above problems. Summary of the Invention

[0005] The utility model provides a fly ash pickling and pulping device, which integrates pickling and pulping, reduces process steps, avoids the generation of acid mist and dust, is convenient for maintenance and cleaning, reduces costs, and pre-treats fly ash by pickling to the greatest extent, solving the problems raised in the background art.

[0006] The utility model provides a fly ash pickling and pulping device, which includes a pickling and pulping treatment tank, a cover plate, an acid inlet mechanism, and a liquid inlet mechanism. The pickling and pulping treatment tank is provided with a material inlet, an acid solution inlet, a washing liquid inlet, and a crane beam. The reaction tank has both an acid solution inlet and a material inlet, integrating pickling and pulping, reducing process steps. The acid solution inlet is located at the bottom of the reaction tank to avoid the generation of acid mist and dust. The crane beam divides the device into a reaction tank and a cover plate, which is convenient for maintenance and cleaning.

[0007] Preferably, the pickling and pulping treatment tank is a square pool structure.

[0008] Preferably, the material of the pickling pulping treatment tank is concrete, which is corrosion-resistant, has good sealing performance and low cost.

[0009] Preferably, the acid liquid inlet is buried deep at the bottom of the pickling pulping treatment tank, and the acid liquid inlet is connected to the acid liquid pipeline.

[0010] Preferably, a traveling beam is installed at the top of the pool wall of the pickling pulping treatment tank.

[0011] Preferably, the traveling beam is firmly fixed to the pool wall of the pickling pulping treatment tank by bolts.

[0012] Preferably, the traveling beam is provided with a groove.

[0013] The cover plate is located directly above the pickling pulping treatment tank.

[0014] Preferably, the cover plate is arch-shaped and completely covers the upper part of the pool body to ensure the sealing performance of the pickling pulping device.

[0015] Preferably, the cover plate is equipped with a slide rail matching the traveling beam, and a slidable pulley is installed on the slide rail.

[0016] Preferably, the pulley has a supporting PLC control system, and the movement of the cover plate can be realized by controlling the pulley.

[0017] Preferably, after the slide rail of the cover plate is installed in the traveling beam, electric welding is carried out on the traveling beam so that the slide rail is fixed in the traveling beam to ensure that the cover plate will not fall off.

[0018] Preferably, a liquid inlet pipeline is provided in the center of the cover plate and is connected to the liquid inlet.

[0019] The liquid inlet mechanism is located below the liquid inlet pipeline, and the liquid inlet mechanism is connected to the liquid inlet pipeline through a flange. The outer surface of the liquid inlet mechanism is a protective shell of the liquid inlet pipeline, and a liquid guiding pipe is fixedly connected in the middle of the liquid inlet pipeline.

[0020] Preferably, an elastic element is fixedly connected to the inner wall of the protective shell of the liquid inlet pipeline, a baffle is fixedly connected to the upper end of the elastic element, a liquid guiding pipe is fixedly connected in the middle of the baffle, and the elastic element is a supporting spring.

[0021] Preferably, the liquid inlet mechanism feeds water.

[0022] Preferably, the outer surface of the lower end of the liquid guiding pipe is threadedly connected with a liquid inlet pipeline spray head, which is convenient for the subsequent replacement of the spray head.

[0023] Preferably, the liquid inlet pipeline spray head opens downward in a fan shape, which can ensure complete coverage in the largest range.

[0024] Preferably, the normal state of the elastic element is a supporting state to realize the expansion and contraction of the fan-shaped spray head by adjusting the water pressure.

[0025] The acid inlet mechanism is located at the bottom of the acid pickling pulping device and consists of an acid liquid outlet and an acid liquid pipeline. The acid liquid pipeline is connected to the acid liquid inlet, and the acid liquid inlet is buried at the bottom of the acid pickling pulping device pool. Liquid outlet holes are opened on the pipeline, corresponding to the reserved holes at the bottom of the acid pickling pulping device pool, and the acid liquid outlet is installed on the reserved hole.

[0026] Preferably, the acid pickling pipeline is distributed in an S shape at the bottom of the pool, enabling the acid liquid to be sprayed at all corners of the pool. Internal threads are provided on the inner wall of the small holes of the acid pickling pipeline, and external threads are provided on the outer surface of the acid liquid outlet, and the external threads are adapted to the internal threads to ensure the stability of the nozzle.

[0027] Preferably, the acid pickling pipeline is installed at the bottom of the acid pickling pulping device pool, which can avoid the corrosion of the pipeline.

[0028] Preferably, a positioning block is fixedly connected to the outer surface of the protective shell of the acid liquid outlet, and the positioning block and the bottom of the pool are fixedly connected through a locking bolt to ensure the stability of the acid liquid outlet.

[0029] A rotating shaft is arranged inside the acid liquid outlet body, and a rotating disk is arranged inside the acid liquid outlet. The rotating shaft is installed on the rotating disk. An outlet is arranged at the upper end of the acid liquid outlet, and an acid liquid nozzle is arranged on the outlet. A swirl groove is arranged on the rotating disk, and a rotating rod is arranged on the rotating disk. Stirring plates are welded on both sides of the acid liquid nozzle.

[0030] Preferably, internal threads are provided on the inner surface of the outlet, and external threads are provided on the outer surface of the acid liquid nozzle, and the external threads are adapted to the internal threads, facilitating the subsequent replacement of the acid liquid nozzle.

[0031] Preferably, the acid liquid outlets are installed on the acid liquid pipeline at intervals of 500 mm to ensure sufficient contact between the material and the acid liquid.

[0032] Preferably, the number of swirl grooves is set to six, and the swirl grooves are arc-shaped.

[0033] Preferably, a chute matching the rotating rod is arranged on the inner wall of the acid liquid outlet to ensure that the rotating rod does not slide out during operation.

[0034] The beneficial effects of the present utility model are as follows:

[0035] 1. The device of the present utility model is used for fly ash acid pickling pulping. The acid pickling pulping device is made of concrete, which is corrosion-resistant, lower in cost, good in airtightness, and good in impact resistance.

[0036] 2. A crane beam is installed on the top of the acid pickling pulping device pool, which matches the slide rail on the cover plate. The sliding of the cover plate is controlled by PLC, making subsequent maintenance and cleaning convenient and workers safer.

[0037] 3. When the device feeds materials, the water inlet mechanism sprays aqueous solution through a sector-shaped nozzle, and the water inlet mechanism controls the expansion and contraction of the nozzle by controlling the water pressure, which can better avoid the generation of dust.

[0038] 4. The acid liquid inlet is installed at the bottom of the pool in an S-shaped distribution. The acid liquid sprayed by the acid liquid nozzle can be fully mixed and reacted with the materials, avoiding the formation of acid mist.

[0039] 5. A stirring plate is arranged at the acid liquid outlet. The rotation of the acid liquid nozzle drives the rotation of the stirring plate, making the reaction of the materials more sufficient.

[0040] 6. The pickling and pulping device integrates pickling and pulping, which can be carried out simultaneously, reducing the process steps and saving time. Brief Description of the Drawings

[0041] Figure 1 It is a structural sectional view of the present utility model.

[0042] Figure 2 It is a schematic top view of the reaction pool of the present utility model.

[0043] Figure 3 It is a schematic structural view of the acid liquid nozzle of the present utility model.

[0044] Figure 4 It is a schematic structural view of the rotating disk of the present utility model.

[0045] Wherein: 1. Pickling and pulping device; 2. Cover plate; 3. Water inlet mechanism; 4. Acid inlet mechanism 11. Cleaning solution inlet; 12. Material inlet; 13. Acid liquid inlet; 14. Crane beam; 21. Slide rail; 211. Pulley; 23. Water inlet pipe; 31. Flange; 32. Protective shell of the liquid inlet pipe; 33. Support spring; 34. Baffle; 35. Liquid guide pipe; 36. Sector-shaped nozzle; 361. Water outlet hole; 41. Acid liquid outlet; 42. Acid liquid pipe; 411. Protective shell of the acid liquid outlet; 412. Positioning block; 413. Locking bolt; 414. Rotating shaft; 415. Rotating disk; 416. Liquid outlet; 417. Acid liquid nozzle; 418. Vortex groove; 419. Rotating rod; 420. Stirring plate; 421. Chute. Detailed Description of the Preferred Embodiment

[0046] The following further details the present utility model in conjunction with the accompanying drawings and specific embodiments:

[0047] Embodiment 1

[0048] As Figure 1As shown in the figure, a fly ash pickling and pulping device of the utility model includes a pickling and pulping treatment tank 1, a cover plate 2, a liquid inlet mechanism 3, and an acid inlet mechanism 4. Among them, a washing liquid inlet 11, a material inlet 12, an acid liquid inlet 13, and a crane beam 14 installed on the top of the pickling and pulping treatment tank 1 are provided on the pickling and pulping device 1. The washing liquid inlet 11 is located directly above the pickling and pulping treatment tank 1 and is connected to the water inlet pipe on the cover plate 2. The material inlet 12 is opened on the side wall of the pickling and pulping treatment tank 1, and the acid liquid inlet 13 is buried deep at the bottom of the pickling and pulping treatment tank 1 and is connected to the acid liquid pipe 42. A groove for the pulley 211 to slide is provided inside the crane beam 14.

[0049] As Figure 1 shown in the figure, the cover plate 2 is located directly above the pickling and pulping device 1. The cover plate 2 is arched, which can increase the reaction space of the pickling and pulping treatment tank 1 and ensure the sealing during the reaction process. A slide rail 21 is welded to the bottom of the cover plate 2 and is used in cooperation with the crane beam 14. A pulley 211 is installed on the slide rail 21, which can be stuck into the groove of the crane beam 14. By controlling the movement of the pulley 211 through the PLC, the separation of the cover plate 2 from the pickling and pulping device 1 can be realized, making the cleaning, maintenance of the pickling and pulping treatment 1 more convenient, efficient, and safe.

[0050] As Figure 1 shown in the figure, the liquid inlet mechanism 3 is connected to the liquid inlet pipe 23 through a flange 31. A support spring 33 is fixedly connected to the inner wall of the protective shell 32, and a baffle 34 is fixed to the end of the support spring 33 away from the protective shell 32. A liquid guide pipe 35 is connected in the middle of the baffle 34. One end of the liquid guide pipe 35 is threadedly connected with a sector-shaped nozzle 36, and water outlet holes 361 are distributed all over the sector-shaped nozzle. When the nozzle 36 sprays water, the water will push the baffle 34 inside the protective shell 32, exert pressure on the support spring 33, and compress it, so that the sector-shaped nozzle 36 can extend downward for spraying. When the water pressure decreases, the baffle 34 resets under the support of the support spring 33. By controlling the water pressure to control the expansion and contraction of the sector-shaped nozzle 36, the generation of dust can be better and faster avoided.

[0051] As Figure 2 、 3 shown in the figure, the acid liquid pipe 42 is buried at the bottom of the pickling and pulping device 1 and is connected to the acid liquid inlet. The liquid outlet holes on the acid liquid pipe 42 correspond to the reserved holes at the bottom of the pickling and pulping treatment tank 1 for installing the acid liquid nozzles 41. The acid liquid pipe 42 is distributed in an S shape at the bottom of the pickling and pulping treatment tank 1, which can ensure the full reaction of the acid liquid and the material.

[0052] As Figure 2 、 3, as shown in Figure 4, the acid liquid outlet 41 is installed on the acid liquid pipeline 42. The acid liquid outlet protective shell 411 on the acid liquid outlet 41 is fixedly connected with a positioning block 412, and the positioning block 412 is fixedly connected with the bottom of the pool through a locking bolt 413 to ensure the stability of the acid liquid outlet 41. The acid liquid outlet 41 is provided with a rotating shaft 414, and a rotating disk 415 is arranged inside the acid liquid outlet 41. The rotating shaft 414 is installed on the rotating disk 415, and one end of the rotating shaft 414 is connected to an acid liquid spray head 417. The acid liquid outlet is provided with a liquid outlet 416, and the liquid outlet 416 is threadedly connected to the acid liquid spray head 417. A swirl groove 418 is arranged on the rotating disk 415. The swirl groove 418 is arc-shaped, which can make the acid liquid better drive the rotation of the rotating disk 415 when passing through the swirl groove 418, thereby driving the rotation of the rotating shaft 414. A rotating rod 419 is arranged on the rotating disk 415, and a sliding groove 421 matching the rotating rod 419 is arranged on the inner wall of the acid liquid spray head 41. When the acid liquid passes through the swirl groove 418, the acid liquid can drive the rotation of the rotating disk 415 and the rotating rod 419, thereby driving the rotation of the acid liquid spray head 417, making the acid liquid contact the material completely. Stirring plates 420 are welded on both sides of the spray head 417. The stirring plates 420 stir the material under the rotation of the acid liquid spray head 417, making the whole reaction process more complete.

[0053] The working principle of a fly ash pickling and pulping device of the present utility model is as follows:

[0054] Fly ash enters the pickling and pulping device 1 through the material inlet 12. At the same time, the washing liquid enters the water inlet mechanism 3 through the water inlet 11. Since the height of the pool of the pickling and pulping device 1 is relatively high, a large amount of dust will be generated when the fly ash first enters the pool. At this time, the water pressure is increased to push the baffle 34, so that the support spring 33 is pressurized to drive the sector spray head 36 to extend downward for spraying, reducing the generation of dust. The acid liquid enters the acid inlet mechanism 4 through the acid liquid inlet 13. When the acid liquid passes through the swirl groove 418 of the acid liquid outlet 41, the acid liquid can drive the rotation of the rotating disk 415 and the rotating rod 419, thereby driving the acid liquid spray head 417 to rotate and spray the acid liquid, making the acid liquid fully contact the material and avoiding the formation of acid mist. Also, since the stirring plates 420 are welded on both sides of the acid liquid spray head 417, the stirring plates 420 stir the material under the rotation of the spray head 417, making the reaction more complete. When the reaction is over, the sliding of the pulley 211 can be controlled by the PLC to separate the cover plate 2 from the pickling and pulping device 1 for subsequent cleaning and maintenance.

[0055] Embodiment 2

[0056] In this embodiment, a fly ash pickling pulping device includes a pickling pulping reaction tank, a cover plate, a water inlet mechanism, and an acid inlet mechanism. Among them, a washing liquid inlet, a material inlet, an acid liquid inlet, and a traveling beam installed at the top of the pool wall of the pickling pulping reaction tank are provided on the pickling pulping reaction tank. The washing liquid inlet is located directly above the pickling pulping reaction tank and is connected to the water inlet pipe on the cover plate. The material inlet is opened on the side wall of the pickling pulping reaction tank, and the acid liquid inlet is buried deep at the bottom of the pickling pulping reaction tank and is connected to the acid liquid pipe. A groove for the pulley to slide is provided inside the traveling beam.

[0057] The cover plate is located directly above the pickling pulping device. The cover plate is arch-shaped, which can increase the reaction space of the pickling pulping reaction tank and ensure the sealing performance during the reaction process. A slide rail is welded to the bottom of the cover plate and is used in cooperation with the traveling beam. A pulley is installed on the slide rail and can be stuck into the groove of the traveling beam. The movement of the pulley is controlled by a PLC, so as to realize the separation of the cover plate from the pickling pulping reaction tank, making the cleaning, maintenance, and repair of the pickling pulping reaction device more convenient, efficient, and safe.

[0058] The water inlet mechanism is connected to the water inlet pipe through a flange. A liquid guide pipe is connected in the middle of the liquid inlet pipe. One end of the liquid guide pipe is threadedly connected with a sector-shaped spray head. The sector-shaped spray head is covered with water outlet holes, which can effectively avoid the generation of dust.

[0059] The acid liquid pipe is buried at the bottom of the pickling pulping device and is connected to the acid liquid inlet. The small holes on the acid liquid pipe correspond to the reserved holes at the bottom of the pickling pulping reaction tank and are used to install the acid liquid outlet. The acid liquid pipe is distributed in an S shape at the bottom of the pickling pulping reaction tank, which can ensure the full reaction of the acid liquid and the material.

[0060] The acid liquid outlet is installed on the acid liquid pipe. A protective shell on the acid liquid outlet is fixedly connected with a positioning block. The positioning block and the bottom of the pool are fixedly connected through a locking bolt to ensure the stability of the acid liquid spray head. The acid liquid spray head is provided with a rotating shaft, and a rotating disk is arranged inside the acid liquid spray head. The rotating shaft is installed on the rotating disk, and one end of the rotating shaft is connected to the spray head. A liquid outlet is arranged on the acid liquid spray head, and the liquid outlet is threadedly connected to the spray head. A swirl groove is arranged on the rotating disk. The swirl groove is arc-shaped, which can make the acid liquid better drive the rotation of the rotating disk when passing through the swirl groove, thereby driving the rotation of the rotating shaft. A rotating rod is arranged on the rotating disk, and a chute matching the rotating rod is arranged on the inner wall of the acid liquid outlet. When the acid liquid passes through the swirl groove, the acid liquid can drive the rotation of the rotating disk and the rotating rod, thereby driving the rotation of the acid liquid spray head, making the acid liquid contact the material completely. Stirring plates are welded on both sides of the acid liquid spray head. The stirring plates stir the material under the action of the rotation of the acid liquid spray head, making the whole reaction process more sufficient.

[0061] The working principle of a fly ash pickling pulping device of the present utility model is as follows:

[0062] Fly ash enters the pickling pulping device through the material inlet. At the same time, the washing liquid enters the water inlet mechanism through the water inlet. Due to the relatively high pool height of the pickling pulping device, a large amount of dust will be generated when the fly ash first enters the pool. At this time, the water pressure is increased to make the sector nozzles extend downward for spraying, reducing the generation of dust. The acid liquid enters the acid inlet mechanism through the acid liquid inlet. When the acid liquid passes through the swirl tank at the acid liquid outlet, the acid liquid can drive the rotating disk and the rotating rod to rotate, thereby driving the acid liquid nozzle to rotate and spray the acid liquid, making the acid liquid fully contact with the material and avoiding the formation of acid mist. Also, since stirring plates are welded on both sides of the acid liquid nozzle, the stirring plates stir the material under the rotation of the nozzle, making the reaction more complete. When the reaction ends, the sliding of the pulley can be controlled by the PLC to separate the cover plate from the pickling pulping reaction pool for subsequent cleaning and maintenance.

[0063] Example 3

[0064] A fly ash pickling pulping device in this embodiment includes a pickling pulping reaction pool, a cover plate, a water inlet mechanism, and an acid inlet mechanism. Among them, the pickling pulping reaction pool is provided with a washing liquid inlet, a material inlet, an acid liquid inlet, and a traveling beam installed at the top of the pool wall of the pickling pulping reaction pool. The washing liquid inlet is located directly above the pickling pulping reaction pool and is connected to the water inlet pipe on the cover plate. The material inlet is opened on the side wall of the pickling pulping reaction pool, and the acid liquid inlet is buried deep at the bottom of the pickling pulping reaction pool and is connected to the acid liquid pipe. A groove for the pulley to slide is provided inside the traveling beam.

[0065] The cover plate is located directly above the pickling pulping device. The cover plate is arch-shaped, which can increase the reaction space of the pickling pulping reaction pool and ensure the sealing during the reaction process. A slide rail is welded to the bottom of the cover plate and is used in cooperation with the traveling beam. A pulley is installed on the slide rail and can be stuck into the groove of the traveling beam, thereby realizing the separation of the cover plate from the pickling pulping reaction pool and making the cleaning and maintenance of the pickling pulping reaction device more convenient, efficient, and safe.

[0066] The water inlet mechanism is connected to the water inlet pipe through a flange. A liquid guide pipe is connected in the middle of the liquid inlet pipe. One end of the liquid guide pipe is threadedly connected with a sector nozzle on the outer surface. The sector nozzle is covered with water outlet holes, which can effectively avoid the generation of dust.

[0067] The acid liquid pipe is buried at the bottom of the pickling pulping device and is connected to the acid liquid inlet. The liquid outlet holes on the acid liquid pipe correspond to the reserved holes at the bottom of the pickling pulping reaction pool for installing the acid liquid outlet. The acid liquid pipe is distributed in an S shape at the bottom of the pickling pulping reaction pool, which can ensure the full reaction of the acid liquid and the material.

[0068] The acid liquid outlet is installed on the acid liquid pipeline. A protective shell on the acid liquid outlet is fixedly connected with a positioning block, and the positioning block and the bottom of the pool are fixedly connected by a locking bolt to ensure the stability of the acid liquid spray head. The acid liquid spray head is provided with a rotating shaft, and a rotating disk is arranged inside the acid liquid spray head. The rotating shaft is installed on the rotating disk, and one end of the rotating shaft is connected to the spray head. An outlet is arranged on the acid liquid outlet, and the outlet is threadedly connected to the acid liquid spray head. A swirl groove is arranged on the rotating disk, and the swirl groove is arc-shaped, which can make the acid liquid better drive the rotating disk to rotate when passing through the swirl groove, thereby driving the rotating shaft to rotate. A rotating rod is arranged on the rotating disk, and a chute matching the rotating rod is arranged on the inner wall of the acid liquid outlet. When the acid liquid passes through the swirl groove, the acid liquid can drive the rotating disk and the rotating rod to rotate, thereby driving the acid liquid spray head to rotate and making the acid liquid contact the material completely. Stirring plates are welded on both sides of the acid liquid spray head, and the stirring plates stir the material under the rotation of the acid liquid spray head, so that the whole reaction process is more complete.

[0069] The working principle of a fly ash pickling and pulping device of the present utility model is as follows:

[0070] Fly ash enters the pickling and pulping device through the material inlet. At the same time, the washing liquid enters the water inlet mechanism through the water inlet. Due to the relatively high height of the pool of the pickling and pulping device, a large amount of dust will be generated when the fly ash first enters the pool. At this time, the water pressure is increased to make the fan-shaped spray head extend downward for spraying to reduce the generation of dust. The acid liquid enters the acid inlet mechanism through the acid liquid inlet. When the acid liquid passes through the swirl groove of the acid liquid outlet, the acid liquid can drive the rotating disk and the rotating rod to rotate, thereby driving the acid liquid spray head to rotate and spray the acid liquid, making the acid liquid fully contact the material and avoiding the formation of acid mist. Also, because stirring plates are welded on both sides of the acid liquid spray head, the stirring plates stir the material under the rotation of the spray head, making the reaction more complete. When the reaction is over, the cover plate is separated from the pickling and pulping reaction pool for subsequent cleaning and maintenance.

Claims

1. A fly ash pickling pulping device, characterized in that: include: A fly ash pickling pulping treatment tank, wherein a material inlet is provided at the middle and upper part of the side of the fly ash pickling pulping treatment tank, an acid inlet mechanism is provided at the bottom of the fly ash pickling pulping treatment tank, and an acid liquid inlet is provided at the bottom of the fly ash pickling pulping treatment tank; A cover plate is arranged on the fly ash pickling pulping treatment tank, a liquid inlet pipe is arranged in the center of the cover plate, and a liquid inlet mechanism is arranged below the liquid inlet pipe.

2. The fly ash pickling pulping device according to claim 1 is characterized in that: A traveling beam is arranged on the top of the wall of the fly ash pickling pulping treatment pool, a groove is arranged inside the traveling beam, a slide rail matching the traveling beam is arranged on the cover plate, and a pulley is arranged on the slide rail.

3. The fly ash pickling pulping device according to claim 1 is characterized in that: The liquid inlet mechanism is connected to the liquid inlet pipeline. A liquid inlet pipeline protective shell is provided on the outer surface of the liquid inlet mechanism. A liquid guide tube is fixedly connected in the middle of the liquid inlet pipeline.

4. The fly ash pickling pulping device according to claim 3 is characterized in that: An elastic element is fixedly connected to the inner wall of the liquid inlet pipe, a baffle is fixedly connected to the upper end of the elastic element, and the baffle is connected to the liquid guiding tube.

5. The fly ash pickling pulping device according to claim 3 or 4, characterized in that: The lower end of the liquid guiding tube is connected to a nozzle, and the nozzle opening is fan-shaped downward.

6. The fly ash pickling pulping device according to claim 1 is characterized in that: The acid inlet mechanism consists of an acid liquid outlet and an acid liquid pipeline. A protective shell is provided outside the acid liquid outlet. The acid liquid pipeline is distributed in an S shape at the bottom of the fly ash pickling treatment tank and is connected to the acid liquid inlet. A liquid outlet hole is provided on the acid liquid pipeline. A reserved hole is provided at the bottom of the treatment tank. The liquid outlet hole corresponds to the reserved hole, and the acid liquid inlet is installed on the reserved hole.

7. The fly ash pickling pulping device according to claim 6 is characterized in that: A rotating disk is arranged in the acid liquid outlet, a rotating shaft is arranged on the rotating disk, a swirl groove and a rotating rod are arranged on the rotating disk, and the swirl groove is in an arc shape.

8. The fly ash pickling pulping device according to claim 6 or 7, characterized in that: A liquid outlet is provided above the acid outlet, an acid nozzle is provided on the liquid outlet, an internal thread is provided on the inner surface of the liquid outlet, and an external thread is provided on the outer surface of the acid nozzle. The external thread on the outer surface of the acid nozzle is matched with the internal thread on the inner surface of the liquid outlet.

9. The fly ash pickling pulping device according to claim 6 or 7, characterized in that: A positioning block is fixed on the outer surface of the acid liquid outlet protective shell, and the positioning block is fixed to the bottom of the fly ash pickling pulping treatment tank.

10. The fly ash pickling pulping device according to claim 7, characterized in that: A slide groove is provided on the inner wall of the acid liquid outlet protective shell, and the slide groove matches the rotating rod.

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