Fly ash washing liquid recycling device

Abstract

The utility model discloses a fly ash washing liquid recycling device, which relates to the field of fly ash treatment and recycling and comprises a tank body, a feeding port is arranged on one side of the upper end of the tank body, a bottom cover is arranged at an opening of the lower end of the tank body, and the bottom cover is detachably connected with the tank body through four uniformly distributed clamping components. A filter screen is detachably mounted in the bottom cover, and a drain valve is arranged in the middle of the bottom surface of the bottom cover. After the mixing reaction is finished, the mixed liquid is discharged through the liquid discharge valve, ash impurities in the mixed liquid are intercepted by the filter screen, then the bottom cover is taken down through the clamping assembly, the ash impurities and the filter screen are poured out and collected intensively, then the sleeve and the mixing plate are taken down through the fixing structure, and the lower part of the scraping ring is not limited at the moment; the stirring structure automatically falls under the action of gravity, ash impurities on the inner wall of the tank body are scraped off, the whole operation process is rapid and convenient, the stirring structure and the inner wall of the tank body are convenient to clean, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fly ash treatment and recovery, in particular to a fly ash washing liquid recovery and reuse device. Background Art

[0002] Fly ash refers to the ashes that fly during incineration. The fly ash washing pretreatment technology has formed a complete process route, which solves the industry problems of domestic waste incineration treatment. Fly ash washing equipment is widely used in many fields, and can effectively treat a variety of pollutants and improve the level of environmental protection. The fly ash washing liquid is pretreated to remove calcium, magnesium, heavy metal ions and suspended solids, and then enters the evaporation and salt separation system. The sodium chloride and potassium chloride crystals in the wastewater are separated through evaporation concentration, quality crystallization and separation processes to form industrial salt products.

[0003] During the above process, the fly ash washing liquid needs to be injected into the mixing tank to mix with the reagent, react and decompose, and then the treated liquid is discharged after the ash impurities are filtered out. Since the ash is light in texture, it is easy to adhere to the inner wall of the mixing tank and the surface of the mixing structure. The subsequent cleaning is cumbersome, time-consuming and labor-intensive, and has poor practicality. Utility Model Content

[0004] The purpose of the utility model is to provide a fly ash washing liquid recovery and reuse device in order to solve the above-mentioned problems, as described in detail below.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a fly ash washing liquid recovery and reuse device, comprising a tank body, a feeding port is provided on one side of the upper end of the tank body, a bottom cover is provided at the opening of the lower end of the tank body, and the bottom cover is detachably connected to the tank body through four evenly distributed clamping components, a filter screen is detachably installed in the bottom cover, and a drain valve is provided in the middle of the bottom surface of the bottom cover;

[0007] A rotating shaft is rotatably connected at the center of the top inner wall of the tank body, and a motor for driving the rotating shaft to rotate is installed on the upper surface of the tank body. A scraper ring is sleeved on the upper part of the rotating shaft, and the scraper ring is adapted to the inner diameter of the tank body. A sleeve is sleeved on the lower part of the rotating shaft to prevent the scraper ring from moving downward, and a fixing structure is provided at the lower end of the rotating shaft to fix the position of the sleeve and rotate with it, and mixing plates are fixedly connected on both sides of the sleeve.

[0008] The fly ash washing liquid recovery and reuse device mentioned above is adopted. When in use, the fly ash washing liquid is injected into the tank body through the feeding port, and the motor is started to drive the rotating shaft and the sleeve to rotate. At this time, the two mixing plates are stirred and mixed in the washing liquid. After the mixing reaction is completed, the mixed liquid is discharged through the drain valve. At this time, the ash impurities in the mixed liquid are intercepted by the filter screen, and then the bottom cover is removed through the clamping assembly, and the ash impurities and the filter screen are poured out and collected together. Then the sleeve and the mixing plate are removed through the fixed structure. At this time, the scraper ring is not restricted below, and it automatically falls under the action of gravity, and at the same time, the ash impurities on the inner wall of the tank are scraped off.

[0009] Preferably, the bottom of the bottom cover is designed as an inverted cone, and the filter screen abuts against the large diameter end of the inverted cone at the bottom of the bottom cover.

[0010] Preferably, the snap-on assembly includes a convex strip fixedly connected to the side wall of the bottom cover, a fixing plate is rotatably connected to the convex strip, a fixing slot is provided at the end of the fixing plate, and a strap mounted on the lower part of the side wall of the tank body and sleeved with the fixing slot is fixedly connected.

[0011] Preferably, a clamping strip adapted to the clamping slot is fixedly connected to the end of the upper surface of the strap.

[0012] Preferably, a sliding sleeve is sleeved on the rotating shaft, the sliding sleeve abuts against the upper end of the sleeve, and the sliding sleeve is fixedly connected to the scraper ring through four evenly distributed support rods.

[0013] Preferably, the fixing structure includes a groove opened at the lower end of the rotating shaft, the inner lower end of the sleeve is fixedly connected with a clamping rod engaged with the groove, the lower end of the rotating shaft is threadedly connected with a nut, and the nut abuts against the lower end of the sleeve.

[0014] Preferably, the two mixing plates are both inclined and centrally symmetrical with the rotation axis as a reference, and several interfering flow holes are penetrated through the two mixing plates.

[0015] Preferably, four evenly distributed supporting legs are fixedly connected to the lower part of the side wall of the tank body, a sealing ring is fixedly connected to the lower opening of the tank body, and a sealing groove adapted to the sealing ring is provided at the upper opening of the bottom cover.

[0016] The beneficial effects are:

[0017] After the mixing reaction is completed, the mixed liquid is discharged through the drain valve. At this time, the ash impurities in the mixed liquid are intercepted by the filter. Then the bottom cover is removed through the snap-on assembly, and the ash impurities and the filter are poured out and collected. Then the sleeve and the mixing plate are removed through the fixed structure. At this time, the scraper ring is not restricted below and it automatically falls under the action of gravity, and at the same time, the ash impurities on the inner wall of the tank are scraped off. The whole operation process is quick and convenient, which is convenient for cleaning the stirring structure and the inner wall of the tank, and improves practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a split stereogram of the utility model;

[0020] Figure 2 It is a cross-sectional stereoscopic view of the tank body of the utility model;

[0021] Figure 3 It is a disassembled stereoscopic diagram of the filter screen of the utility model.

[0022] The following are the descriptions of the reference numerals:

[0023] 1. Tank body; 2. Feeding port; 3. Snap-on assembly; 3a. Raised strip; 3b. Fixed plate; 3c. Slot; 3d. Strap; 3e. Clip; 4. Rotating shaft; 5. Motor; 6. Scraper ring; 7. Casing; 8. Mixing plate; 9. Bottom cover; 10. Filter screen; 11. Sealing ring; 12. Sealing groove; 13. Drain valve; 14. Turbine hole; 15. Groove; 16. Clamp rod; 17. Nut; 18. Sliding sleeve; 19. Support rod; 20. Support leg. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0025] See also Figure 1-Figure 3 As shown, the utility model provides a fly ash washing liquid recovery and reuse device, comprising a tank body 1, a feeding port 2 is provided on one side of the upper end of the tank body 1, a bottom cover 9 is provided at the lower end opening of the tank body 1, and the bottom cover 9 is detachably connected to the tank body 1 through four evenly distributed clamping components 3, a filter screen 10 is detachably installed in the bottom cover 9, and a drain valve 13 is provided in the middle of the bottom surface of the bottom cover 9;

[0026] A rotating shaft 4 is rotatably connected at the center of the top inner wall of the tank body 1, and a motor 5 is installed on the upper surface of the tank body 1 to drive the rotating shaft 4 to rotate. A scraper ring 6 is sleeved on the upper part of the rotating shaft 4, and the scraper ring 6 is adapted to the inner diameter of the tank body 1. A sleeve 7 is sleeved on the lower part of the rotating shaft 4 to prevent the scraper ring 6 from moving downward, and a fixing structure is provided at the lower end of the rotating shaft 4 to fix the position of the sleeve 7 and rotate with it, and mixing plates 8 are fixedly connected on both sides of the sleeve 7.

[0027] Specifically, the bottom of the bottom cover 9 is designed as an inverted cone, and the filter 10 is in contact with the large diameter end of the inverted cone at the bottom of the bottom cover 9, which can prevent liquid from accumulating at the bottom of the bottom cover 9 and can stably place the filter 10.

[0028] As an optional embodiment, the snap-on assembly 3 includes a convex strip 3a fixedly connected to the side wall of the bottom cover 9, a fixing plate 3b is rotatably connected to the convex strip 3a, a snap-on groove 3c is provided at the end of the fixing plate 3b, a strap 3d which is sleeved with the snap-on groove 3c is fixedly connected to the lower portion of the side wall of the tank body 1, a snap-on strip 3e which is adapted to the snap-on groove 3c is fixedly connected to the end of the upper surface of the strap 3d. When the bottom cover 9 is installed at the lower end of the tank body 1, the four fixing plates 3b are flipped over in turn so that the snap-on groove 3c is snap-on-sleeved with the strap 3d. At this time, the position of the bottom cover 9 will be fixed. At the same time, due to the existence of the snap-on strip 3e, a snap-on effect will appear after the snap-on groove 3c is completely sleeved with the strap 3d. The snap-on strip 3e can effectively prevent the fixing plate 3b from falling off the strap 3d.

[0029] Reference Figure 2 As shown, a sliding sleeve 18 is sleeved on the rotating shaft 4, and the sliding sleeve 18 abuts against the upper end of the sleeve 7. The sliding sleeve 18 is fixedly connected to the scraper ring 6 through four evenly distributed support rods 19. When the height of the sleeve 7 is fixed, since the sliding sleeve 18 abuts against its upper end, the height of the scraper ring 6 is also fixed. After the sleeve 7 is taken out, the scraper ring 6, the support rod 19 and the sliding sleeve 18 can automatically fall under the action of their own gravity, thereby driving the scraper ring 6 to scrape off the ash impurities adhered to the inner wall of the tank body 1.

[0030] As an optional embodiment, the fixing structure includes a groove 15 opened at the lower end of the rotating shaft 4, and the inner lower end of the sleeve 7 is fixedly connected with a clamping rod 16 clamped with the groove 15. The lower end of the rotating shaft 4 is threadedly connected with a nut 17, and the nut 17 abuts against the lower end of the sleeve 7. The sleeve 7 can be sleeved on the outside of the rotating shaft 4 from bottom to top. At this time, the clamping rod 16 is located in the groove 15, and then the nut 17 is rotated to fix it to the lower end of the rotating shaft 4 and prevent the sleeve 7 from falling.

[0031] Furthermore, the two mixing plates 8 are both inclined and symmetrical with respect to the rotating shaft 4, and the two mixing plates 8 are penetrated with some interference flow holes 14, so that when the mixing plates 8 rotate, the liquid can pass through the interference flow holes 14, causing the liquid flow to be disordered, thereby achieving a better mixing effect.

[0032] Specifically, four evenly distributed supporting legs 20 are fixedly connected to the lower part of the side wall of the tank body 1, a sealing ring 11 is fixedly connected to the lower end opening of the tank body 1, and a sealing groove 12 adapted to the sealing ring 11 is provided at the upper end opening of the bottom cover 9. The supporting legs 20 can raise the tank body 1 to facilitate subsequent unloading, cleaning and other operations. At the same time, the sealing ring 11 cooperates with the sealing groove 12 to prevent liquid from seeping out of the gap between the tank body 1 and the bottom cover 9.

[0033] With the above structure, when in use, the fly ash water washing liquid is injected into the tank body 1 through the feeding port 2, and the motor 5 is started to drive the rotating shaft 4 and the sleeve 7 to rotate. At this time, the two mixing plates 8 are stirred and mixed in the water washing liquid. After the mixing reaction is completed, the mixed liquid is discharged through the drain valve 13. At this time, the ash impurities in the mixed liquid are intercepted by the filter screen 10, and then the bottom cover 9 is removed through the clamping assembly 3, and the ash impurities and the filter screen 10 are poured out and collected. Then the sleeve 7 and the mixing plate 8 are removed through the fixed structure. At this time, the scraper ring 6 is not restricted below, and it automatically falls under the action of gravity, and at the same time, the ash impurities on the inner wall of the tank body 1 are scraped off.

[0034] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A fly ash washing liquid recovery and reuse device, characterized in that: The invention comprises a tank body (1), wherein a feeding port (2) is provided at one side of the upper end of the tank body (1), a bottom cover (9) is provided at the lower end opening of the tank body (1), and the bottom cover (9) is detachably connected to the tank body (1) via four evenly distributed clamping assemblies (3), a filter screen (10) is detachably installed in the bottom cover (9), and a drain valve (13) is provided in the middle of the bottom surface of the bottom cover (9); A rotating shaft (4) is rotatably connected at the center of the top inner wall of the tank body (1), and a motor (5) is installed on the upper surface of the tank body (1) for driving the rotating shaft (4) to rotate. A scraper ring (6) is sleeved on the upper part of the rotating shaft (4), and the scraper ring (6) is adapted to the inner diameter of the tank body (1). A sleeve (7) is sleeved on the lower part of the rotating shaft (4) for preventing the scraper ring (6) from moving downward, and a fixing structure is provided at the lower end of the rotating shaft (4) for fixing the position of the sleeve (7) and rotating with the sleeve, and mixing plates (8) are fixedly connected to both sides of the sleeve (7).

2. A fly ash washing liquid recovery and reuse device according to claim 1, characterized in that: The bottom of the bottom cover (9) is designed to be inverted cone shape, and the filter screen (10) abuts against the large diameter end of the inverted cone at the bottom of the bottom cover (9).

3. The fly ash washing liquid recovery and reuse device according to claim 1, characterized in that: The snap-on assembly (3) comprises a convex strip (3a) fixedly connected to the side wall of the bottom cover (9), a fixing plate (3b) rotatably connected to the convex strip (3a), a fixing groove (3c) being provided at the end of the fixing plate (3b), and a strap (3d) sleeved with the fixing groove (3c) being fixedly connected to the lower part of the side wall of the tank body (1).

4. A fly ash washing liquid recovery and reuse device according to claim 3, characterized in that: A clamping strip (3e) adapted to the clamping slot (3c) is fixedly connected to the end of the upper surface of the strap (3d).

5. The fly ash washing liquid recovery and reuse device according to claim 1, characterized in that: The rotating shaft (4) is sleeved with a sliding sleeve (18), the sliding sleeve (18) abuts against the upper end of the sleeve (7), and the sliding sleeve (18) is fixedly connected to the scraper ring (6) via four equally spaced support rods (19).

6. The fly ash washing liquid recovery and reuse device according to claim 1, characterized in that: The fixing structure comprises a groove (15) formed at the lower end of the rotating shaft (4); the inner lower end of the sleeve (7) is fixedly connected with a clamping rod (16) clamped with the groove (15); the lower end of the rotating shaft (4) is threadedly connected with a nut (17), and the nut (17) abuts against the lower end of the sleeve (7).

7. The fly ash washing liquid recovery and reuse device according to claim 1, characterized in that: The two mixing plates (8) are both designed to be inclined and centrally symmetrical with the rotating shaft (4) as a reference, and a number of interfering flow holes (14) are penetrated through the two mixing plates (8).

8. The fly ash washing liquid recovery and reuse device according to claim 1, characterized in that: Four evenly distributed supporting legs (20) are fixedly connected to the lower part of the side wall of the tank body (1), a sealing ring (11) is fixedly connected to the lower opening of the tank body (1), and a sealing groove (12) adapted to the sealing ring (11) is provided at the upper opening of the bottom cover (9).

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