Desulfurization wastewater zero-discharge treatment device capable of recycling resources

Abstract

The utility model discloses a desulfurization wastewater zero discharge treatment device capable of recycling resources, which relates to the field of wastewater treatment, and comprises a treatment box, a detachable top cover is arranged at the top end of the treatment box, a buffer component is arranged in the treatment box, a water injection pipe penetrating through the top cover is arranged on the top cover, a corrugated pipe is fixedly arranged at the bottom end of the top cover, and the corrugated pipe is provided with a water outlet. The buffer assembly comprises a center cylinder fixedly arranged at the bottom end in the treatment box, and a movable supporting plate is arranged in the center cylinder. Wastewater is guided into the center cylinder, the wastewater entering the center cylinder overflows from the center cylinder from bottom to top, and the overflowed wastewater flows downwards and penetrates through the annular filter screen, so that the wastewater is filtered through the annular filter screen, and in the process, the wastewater does not violently collide with the annular filter screen; and the filtered crystal impurities are prevented from being impacted by water flow to be broken, so that the influence on the filtering precision is avoided.

Description

Technical Field

[0001] The utility model relates to the field of wastewater treatment, in particular to a desulfurization wastewater zero-discharge treatment device which can be recycled. Background Art

[0002] In the industrial production process, the flue gas in the boiler needs to be desulfurized before it can be discharged to avoid pollution to the environment. In the process of wet desulfurization of the flue gas, a large amount of sulfur-containing wastewater will be generated, which also needs to be treated before it can be discharged.

[0003] Desulfurization wastewater mainly contains sulfate and sulfite, which can be precipitated from the wastewater after treatment and separated from the wastewater by filtration. After separation, they can also be collected and reused, such as a resource-recyclable desulfurization wastewater zero-discharge treatment device with publication number CN211035585U in the prior art.

[0004] After precipitation, sulfates, sulfites and other impurities are mostly mixed in the wastewater in the form of crystals or flocs. The crystals and flocs themselves are very fragile and easily broken or scattered when impacted. When filtering wastewater with the existing technology, the water flow will impact the filter from top to bottom, causing the precipitated substances to come into violent contact with the filter. The volume of the impurities after being broken or scattered is reduced and cannot be fully filtered, thereby affecting the filtration accuracy. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a zero-emission treatment device for desulfurization wastewater that can be recycled. The wastewater is introduced into a central cylinder, and the wastewater overflows from the central cylinder from bottom to top. The overflowed wastewater flows downward and passes through the annular filter. During this process, the wastewater will not collide violently with the annular filter, thereby avoiding the filtered crystal impurities from being broken by the impact of the water flow, thereby avoiding affecting the filtration accuracy. The problems in the background technology can be effectively solved.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a resource-recyclable desulfurization wastewater zero-discharge treatment device, comprising a treatment box, a detachable top cover is provided on the top of the treatment box, a buffer assembly is provided inside the treatment box, a water injection pipe penetrating the top cover is provided on the top cover, and a bellows is fixed at the bottom of the top cover;

[0007] The buffer assembly comprises a central tube fixedly arranged at the bottom end of the processing box, a movable support plate is arranged inside the central tube, and a sealing ring in contact with the inner wall of the central tube is fixedly arranged at the outer end of the movable support plate;

[0008] An end tube is fixedly provided at the top of the movable support plate, a through hole is opened at the outer end of the end tube, the bottom end of the corrugated tube is detachably connected to the top end of the end tube, and an annular filter is provided at the outer end of the central tube through a sealing bearing sleeve.

[0009] Furthermore, a spring is fixedly provided at the bottom end of the movable support plate, and the bottom end of the spring is fixedly connected to the inner wall of the processing box.

[0010] Furthermore, a plurality of vertical poles are fixedly provided at the top of the central tube, a fixing plate is fixedly provided at the top of the vertical pole, one end of the fixing plate extends to the top of the movable support plate and is fixedly provided with an electromagnet;

[0011] The top of the movable support plate is inlaid with an annular iron sheet, and the height of the movable support plate can be controlled by adsorbing the annular iron sheet through the magnetic force of the electromagnet.

[0012] Furthermore, a blocking ring having a sealing function is fixedly provided on the outer end of the upper edge of the central tube, and the bottom end of the blocking ring is in contact with the annular filter screen.

[0013] Furthermore, a frame is fixedly provided at the outer end of the annular filter, the frame protrudes from the top of the annular filter, a motor is fixedly provided at the top of the top cover, the output shaft of the motor extends to the inside of the processing box and is fixedly provided with an extension shaft;

[0014] A driving wheel is fixedly provided at the bottom end of the extension shaft, and an anti-skid pad in contact with the outer end of the frame is fixedly provided at the outer end of the driving wheel. The frame and the annular filter are driven to rotate by the rotation of the driving wheel.

[0015] Furthermore, a plurality of supporting legs are fixedly provided at the bottom end of the processing box, and a drainage pipe with a valve is fixedly provided at the front side of the processing box, through which the waste water after filtering is discharged for the next step of processing.

[0016] Compared with the prior art, the utility model provides a zero-discharge treatment device for desulfurization wastewater that can be recycled and utilized, and has the following beneficial effects:

[0017] By introducing the wastewater into the central cylinder, the wastewater entering the central cylinder overflows from the central cylinder from bottom to top, and the overflowing wastewater flows downward and passes through the annular filter, so that the wastewater is filtered through the annular filter. In this process, the wastewater will not collide violently with the annular filter, avoiding the filtered crystal impurities from being broken by the impact of the water flow, thereby avoiding affecting the filtration accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the overall structure diagram of the utility model;

[0019] Figure 2 It is a cross-sectional view of the processing box of the utility model;

[0020] Figure 3 For the utility model Figure 2 Enlarged view of part A in the middle;

[0021] Figure 4 This is the internal structure diagram of the buffer component of the utility model;

[0022] Figure 5 This is a structural diagram of the annular filter of the utility model.

[0023] In the figure: 1. treatment box; 2. top cover; 3. water injection pipe; 4. support leg; 5. drainage pipe; 6. motor; 7. buffer assembly; 701. center tube; 702. movable support plate; 703. end pipe; 704. through hole; 705. spring; 8. annular filter; 9. blocking ring; 10. bellows; 11. extension shaft; 12. frame; 13. driving wheel; 14. annular iron sheet; 15. vertical pole; 16. electromagnet. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention will be further described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In order to address the shortcomings of the existing technology, such as Figure 1-Figure 5 As shown, the utility model provides a resource-recyclable desulfurization wastewater zero-discharge treatment device, comprising a treatment box 1, a detachable top cover 2 is provided on the top of the treatment box 1, a buffer assembly 7 is provided inside the treatment box 1, a water injection pipe 3 penetrating the top cover 2 is provided on the top cover 2, and a bellows 10 is fixedly provided at the bottom of the top cover 2;

[0026] A plurality of supporting legs 4 are fixedly provided at the bottom of the treatment box 1, and a drainage pipe 5 with a valve is fixedly provided at the front side of the treatment box 1, through which the waste water after filtration is discharged for the next step of treatment.

[0027] Wastewater with impurities is introduced into the treatment box 1 through the water injection pipe 3 . The water entering the treatment box 1 is filtered to remove impurities and then discharged to the outside through the drain pipe 5 .

[0028] In order to avoid the filtration resulting in the crushing of crystals in the wastewater, e.g. Figure 2 , Figure 4As shown, the buffer assembly 7 includes a central tube 701 fixedly arranged at the bottom end of the processing box 1, a movable support plate 702 is arranged inside the central tube 701, and a sealing ring in contact with the inner wall of the central tube 701 is fixedly arranged at the outer end of the movable support plate 702;

[0029] An end pipe 703 is fixedly provided at the top of the movable support plate 702, a through hole 704 is opened at the outer end of the end pipe 703, the bottom end of the bellows 10 is detachably connected to the top of the end pipe 703, and an annular filter 8 is provided at the outer end of the central tube 701 through a sealing bearing sleeve.

[0030] The wastewater is introduced into the interior of the bellows 10 through the water injection pipe 3, then flows downward along the bellows 10 to the end pipe 703, and finally flows outward through the through hole 704 to the interior of the central tube 701. The wastewater entering the central tube 701 is located on the top of the movable support plate 702. In the central tube 701, the liquid level of the wastewater gradually rises until it overflows the central tube 701. The overflowed wastewater flows downward and passes through the annular filter 8, thereby filtering the wastewater through the annular filter 8. In this process, since the wastewater overflows from the central tube 701 from the bottom to the top, the force of the wastewater flow is relatively small, and it will not collide violently with the annular filter 8, thereby avoiding the filtered crystal impurities from being broken by the impact of the water flow, thereby avoiding affecting the filtering accuracy.

[0031] After the filtration is completed, some unfiltered wastewater will remain inside the central tube 701, such as Figure 4 As shown, a spring 705 is fixedly provided at the bottom end of the movable support plate 702 , and the bottom end of the spring 705 is fixedly connected to the inner wall of the processing box 1 .

[0032] A plurality of vertical poles 15 are fixedly disposed on the top of the central tube 701, and a fixing plate is fixedly disposed on the top of the vertical pole 15. One end of the fixing plate extends to the top of the movable support plate 702 and is fixedly disposed with an electromagnet 16.

[0033] The top of the movable support plate 702 is inlaid with an annular iron sheet 14 , and the height of the movable support plate 702 can be controlled by adsorbing the annular iron sheet 14 through the magnetic force of the electromagnet 16 .

[0034] After the filtration is completed, the electromagnet 16 is turned on, and the electromagnet 16 generates magnetic force and attracts the annular iron sheet 14 upward. The annular iron sheet 14 is fixed on the movable support plate 702, and the movable support plate 702 is thereby attracted and moves upward, and the spring 705 is stretched accordingly. During the upward movement of the movable support plate 702, the wastewater remaining in the central tube 701 is pushed from the bottom, and the wastewater therefore flows upward and overflows, so that the wastewater remaining in the central tube 701 can also be filtered.

[0035] After filtering, the filtered crystals are moved to the edge of the annular filter screen 8, such as Figure 2 , Figure 3, Figure 5 As shown, a blocking ring 9 for sealing is fixedly provided at the outer end of the upper edge of the central tube 701, and the bottom end of the blocking ring 9 is in contact with the annular filter screen 8 to prevent waste water from flowing to the bearing part and leaking.

[0036] A frame 12 is fixedly disposed at the outer end of the annular filter 8, and the frame 12 protrudes from the top of the annular filter 8. A motor 6 is fixedly disposed at the top of the top cover 2, and the output shaft of the motor 6 extends into the interior of the processing box 1 and is fixedly disposed with an extension shaft 11.

[0037] A driving wheel 13 is fixedly disposed at the bottom end of the extension shaft 11 , and a non-slip pad in contact with the outer end of the frame 12 is fixedly disposed at the outer end of the driving wheel 13 . The frame 12 and the annular filter 8 are driven to rotate by the rotation of the driving wheel 13 .

[0038] While filtering, turn on the motor 6, drive the extension shaft 11 to rotate and drive the driving wheel 13 through the motor 6. The driving wheel 13 is in contact with the frame 12 through the anti-slip pad. Therefore, after the driving wheel 13 rotates, it can drive the frame 12, and then drive the annular filter 8 to rotate. After the annular filter 8 rotates, centrifugal force is generated. Under the action of the centrifugal force, the crystals attached to the annular filter 8 will move to the edge of the annular filter 8 until they move to the frame 12. Impurities such as crystals attached to the annular filter 8 can also be collected and reused.

[0039] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A zero-discharge treatment device for desulfurization wastewater capable of being recycled, comprising a treatment box (1), wherein a detachable top cover (2) is provided at the top of the treatment box (1), and wherein: A buffer assembly (7) is provided inside the treatment box (1); a water injection pipe (3) penetrating the top cover (2) is provided on the top cover (2); and a bellows (10) is fixedly provided at the bottom end of the top cover (2); The buffer assembly (7) comprises a central tube (701) fixedly arranged at the bottom end of the processing box (1), a movable support plate (702) being arranged inside the central tube (701), and a sealing ring in contact with the inner wall of the central tube (701) being fixedly arranged at the outer end of the movable support plate (702); An end tube (703) is fixedly provided at the top of the movable support plate (702), a through hole (704) is provided at the outer end of the end tube (703), the bottom end of the bellows (10) is detachably connected to the top end of the end tube (703), and an annular filter screen (8) is provided at the outer end of the central tube (701) via a sealing bearing sleeve.

2. The resource-recyclable desulfurization wastewater zero-discharge treatment device according to claim 1 is characterized in that: A spring (705) is fixedly provided at the bottom end of the movable support plate (702), and the bottom end of the spring (705) is fixedly connected to the inner wall of the processing box (1).

3. The resource-recyclable zero-discharge treatment device for desulfurization wastewater according to claim 2 is characterized in that: A plurality of vertical poles (15) are fixedly provided at the top of the central tube (701), a fixing plate is fixedly provided at the top of the vertical pole (15), one end of the fixing plate extends to the top of the movable support plate (702) and is fixedly provided with an electromagnet (16); The top of the movable support plate (702) is inlaid with an annular iron sheet (14).

4. The resource-recyclable zero-discharge treatment device for desulfurization wastewater according to claim 1 is characterized in that: A blocking ring (9) having a sealing function is fixedly provided at the outer end of the upper edge of the central tube (701), and the bottom end of the blocking ring (9) is in contact with the annular filter screen (8).

5. The resource-recyclable zero-discharge treatment device for desulfurization wastewater according to claim 4 is characterized in that: A frame (12) is fixedly provided at the outer end of the annular filter (8), a motor (6) is fixedly provided at the top end of the top cover (2), and an output shaft of the motor (6) extends into the interior of the processing box (1) and is fixedly provided with an extension shaft (11); A driving wheel (13) is fixedly provided at the bottom end of the extension shaft (11), and an anti-slip pad in contact with the outer end of the frame (12) is fixedly provided at the outer end of the driving wheel (13).

6. The resource-recyclable zero-discharge treatment device for desulfurization wastewater according to claim 1 is characterized in that: A plurality of supporting legs (4) are fixedly provided at the bottom end of the treatment box (1), and a drainage pipe (5) with a valve is fixedly provided at the front side of the treatment box (1).

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