Desulfurization and wet desulfurization waste liquid treatment equipment for coke furnace

Abstract

The utility model relates to the technical field of desulfurization waste liquid treatment, and discloses coke furnace desulfurization wet desulfurization waste liquid treatment equipment which comprises a desulfurization waste water treatment equipment all-in-one machine, and a treatment pond for neutralizing treatment and coagulating sedimentation waste liquid treatment is separated from the interior of the desulfurization waste water treatment equipment all-in-one machine through a metal plate. According to the utility model, through the mutual cooperation of the high-pressure air pump, the air storage box and the dispersing sleeve structure, the air storage box is filled with air by the high-pressure air pump, so that a coagulant enters the fixed box after being put into the feed hopper on the fixed box; after the electric control valve is opened, high-pressure air in the air storage box pushes the coagulant to quickly enter the dispersing sleeve through the fixed pipe, and the coagulant is dispersed into the treatment pond from the surface of the dispersing sleeve, and is more uniformly dispersed in the treatment pond after being stirred by the dispersing assembly again; the coagulant can be conveniently and uniformly put into all positions of the wastewater in the coagulation sedimentation treatment of the desulfurization waste liquid, so that the wastewater treatment time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization wastewater treatment technology, and in particular to a wet desulfurization wastewater treatment device for coal and coke ovens. Background Technology

[0002] The wet desulfurization method for coal and coke ovens is characterized by the desulfurization system being located at the end of the flue and after the dust collector. The reaction temperature of the desulfurization process is lower than the dew point, so the desulfurized flue gas needs to be reheated before it can be discharged. Because it is a gas-liquid reaction, its desulfurization reaction speed is fast, its efficiency is high, and its desulfurization additive utilization rate is high, making it suitable for flue gas desulfurization in large coal-fired power plants.

[0003] The desulfurization process is as follows: pretreatment, neutralization, coagulation and sedimentation, activated carbon adsorption, disinfection and discharge. These are the main steps of the desulfurization wastewater treatment equipment process. The integrated desulfurization wastewater treatment equipment is a type of desulfurization waste liquid treatment equipment. In the treatment of desulfurization wastewater, coagulants are added during coagulation and sedimentation to cause suspended solids and colloidal substances in the wastewater to coagulate into flocs, which are then removed by sedimentation. However, in existing integrated desulfurization wastewater treatment equipment, when adding coagulants during coagulation and sedimentation, the coagulants can only be placed on top of the wastewater and then settle in it. It is not possible to evenly distribute the coagulants in the wastewater during the addition process, which means that it takes a certain amount of time for the coagulants to disperse in the wastewater, thus reducing the wastewater treatment time.

[0004] Therefore, a wet desulfurization waste liquid treatment device for coal and coke ovens is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a wet desulfurization wastewater treatment equipment for coal and coke ovens, which aims to improve the problem that it is inconvenient to evenly add coagulant to the wastewater during the addition process of the integrated desulfurization wastewater treatment equipment in the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A wet desulfurization wastewater treatment device for coal and coke ovens includes an integrated desulfurization wastewater treatment unit. The integrated desulfurization wastewater treatment unit has a treatment tank separated by a metal plate for neutralization and coagulation sedimentation wastewater treatment. A dispersion sleeve is installed inside the treatment tank. A fixed box is installed on the top of the integrated desulfurization wastewater treatment unit. A feed hopper is connected to the top of the fixed box, and a fixed pipe is connected to the bottom of the fixed box. The bottom end of the fixed pipe is connected to the top of the dispersion sleeve. An electric control valve is threadedly connected to the outside of the fixed box. A gas storage box is fixedly installed on the top of the integrated desulfurization wastewater treatment unit. A high-pressure air pump is connected to the top of the gas storage box. The outside of the electric control valve is connected to the inside of the gas storage box. A dispersion component is installed inside the dispersion sleeve, and a sealing component is fixedly connected to the surface of the dispersion sleeve. An anti-overflow component is fixedly connected to the top of the inner wall of the fixed box.

[0008] As a further description of the above technical solution:

[0009] The dispersion component includes a dispersion tube disposed inside the dispersion sleeve. A motor is fixedly installed at the top end of the dispersion tube, and the bottom end of the motor is fixedly installed at the top of the fixing box.

[0010] As a further description of the above technical solution:

[0011] The motor is provided with a limiting block at its bottom. The bottom of the limiting block is fixedly installed with the top of the integrated desulfurization wastewater treatment equipment. The inner side of the limiting block is connected to the surface of the dispersion tube.

[0012] As a further description of the above technical solution:

[0013] The sealing assembly includes a receiving port, which is opened on the surface of the dispersing sleeve. The multiple receiving ports are all in communication with the surface of the dispersing sleeve. A fixing rod is fixedly connected longitudinally inside the receiving port. A sealing plate is sleeved on the surface of the fixing rod. A torsion spring is fixedly connected to the surface of the fixing rod. The other end of the torsion spring is fixedly connected to the inner wall of the sealing plate.

[0014] As a further description of the above technical solution:

[0015] A guide plate is fixedly connected to the inner wall of the dispersion sleeve.

[0016] As a further description of the above technical solution:

[0017] The anti-overflow component includes a support block, which is fixedly connected to the top of the inner wall of the fixed box. A stabilizing rod is fixedly connected longitudinally to the inner side of the support block. An anti-overflow plate is sleeved on the surface of the stabilizing rod and is located at the bottom of the feed hopper.

[0018] As a further description of the above technical solution:

[0019] A second torsion spring is fixedly connected to the surface of the stabilizer bar, and the other end of the second torsion spring is fixedly connected to the inner wall of the spill prevention plate.

[0020] As a further description of the above technical solution:

[0021] The top of the integrated desulfurization wastewater treatment equipment is fixedly installed with a protective shell, which is located outside the gas storage box.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, through the cooperation of a high-pressure air pump, an air storage box, and a dispersion sleeve structure, the high-pressure air pump fills the air storage box with air, so that the coagulant put into the feed hopper on the fixed box enters the fixed box. After the electric control valve is opened, the high-pressure air inside the air storage box pushes the coagulant into the dispersion sleeve through the fixed pipe and disperses it from the surface of the dispersion sleeve into the treatment tank. Furthermore, the coagulant is stirred again by the dispersion component and dispersed more evenly in the treatment tank. This makes it easier to evenly distribute the coagulant in various parts of the wastewater during the coagulation and sedimentation treatment of desulfurization wastewater, thereby reducing the wastewater treatment time.

[0024] 2. In this utility model, with the cooperation of the sealing component and the anti-overflow component, the sealing plate is twisted on the surface of the fixing rod by the torsion spring, so that the sealing plate can be continuously pressed on the surface of the dispersion sleeve without being pushed by high-pressure air, reducing the amount of wastewater entering the dispersion sleeve. Meanwhile, the anti-overflow plate is twisted on the surface of the stabilizing rod by the torsion spring, which can seal the connection between the feed hopper and the fixed box after the coagulant is added to the feed hopper, preventing high-pressure air from overflowing from the connection between the feed hopper and the fixed box after the electric control valve is opened, thus preventing high-pressure air and coagulant from overflowing during the feeding process. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a wet desulfurization waste liquid treatment device for a coal and coke oven, as proposed in this utility model.

[0026] Figure 2 This is a three-dimensional structural diagram of the feed hopper of a wet desulfurization waste liquid treatment device for a coal and coke oven, as proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the main view cross-sectional structure of the dispersion set of the wet desulfurization waste liquid treatment equipment for coal and coke ovens proposed in this utility model;

[0028] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A;

[0029] Figure 5 This utility model Figure 3 Enlarged schematic diagram of the structure at point B.

[0030] Legend:

[0031] 1. Integrated desulfurization wastewater treatment equipment; 2. Treatment tank; 3. Dispersion sleeve; 4. Fixing box; 5. Feed hopper; 6. Fixing pipe; 7. Electric control valve; 8. Gas storage box; 9. High-pressure air pump; 101. Dispersion pipe; 102. Motor; 11. Limiting block; 121. Receiving port; 122. Fixing rod; 123. Sealing plate; 124. Torsion spring one; 13. Guide plate; 141. Support block; 142. Stabilizing rod; 143. Overflow prevention plate; 15. Torsion spring two; 16. Protective shell. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1-3This utility model provides an embodiment of a wet desulfurization wastewater treatment device for coal and coke ovens, comprising an integrated desulfurization wastewater treatment unit 1. The integrated desulfurization wastewater treatment unit 1 has a treatment tank 2 separated by a metal plate for neutralization and coagulation sedimentation wastewater treatment. A dispersion sleeve 3 is installed inside the treatment tank 2, and a guide plate 13 is fixedly connected to the inner wall of the dispersion sleeve 3. A fixed box 4 is installed on the top of the integrated desulfurization wastewater treatment unit 1, with a feed hopper 5 connected to the top of the fixed box 4. A fixed pipe 6 is connected to the bottom of the fixed box 4, and the bottom end of the fixed pipe 6 is connected to the top of the dispersion sleeve 3. An electric control valve 7 is threadedly connected to the outer side of the fixed box 4. A gas storage box 8 is fixedly installed on the top of the integrated desulfurization wastewater treatment unit 1, with a high-pressure air pump 9 connected to the top of the gas storage box 8. The outer side of the electric control valve 7 is connected to the inner side of the gas storage box 8. After the high-pressure air pump 9 is started, air is injected into the air storage box 8, so that the coagulant is put into the feed hopper 5 on the fixed box 4 and enters the fixed box 4. Then, the electric control valve 7 is opened so that the high-pressure air inside the air storage box 8 is transported by the fixed pipe 6. The high-pressure air pushes the coagulant into the dispersion sleeve 3 quickly, so that the coagulant is dispersed from the surface of the dispersion sleeve 3 into the treatment tank 2. The coagulant is stirred again by the dispersion component and dispersed more evenly in the treatment tank 2. The dispersion sleeve 3 is equipped with a dispersion component, and a sealing component is fixedly connected to the surface of the dispersion sleeve 3. An anti-overflow component is fixedly connected to the top of the inner wall of the fixed box 4. A protective shell 16 is fixedly installed on the top of the desulfurization wastewater treatment equipment integrated machine 1. The protective shell 16 is located outside the air storage box 8. The protective shell 16 is used to protect the feed hopper 5 and prevent garbage and dust from adhering to the feed hopper 5.

[0034] Reference Figure 2-4 The dispersion component includes a dispersion tube 101, which is located inside the dispersion sleeve 3. A motor 102 is fixedly installed at the top of the dispersion tube 101, and the bottom of the motor 102 is fixedly installed at the top of the fixed box 4. A limit block 11 is provided at the bottom of the motor 102, and the bottom of the limit block 11 is fixedly installed at the top of the desulfurization wastewater treatment equipment integrated machine 1. The inner side of the limit block 11 is connected to the surface of the dispersion tube 101. After the motor 102 is started, it drives the dispersion tube 101 to rotate inside the dispersion sleeve 3, so that the dispersion tube 101 tumbles the wastewater at the bottom of the inner wall of the treatment tank 2 from bottom to top through the cooperation between the dispersion tube 101 and the dispersion sleeve 3. After the wastewater is tumbled, it mixes with the coagulant so that the coagulant can be quickly mixed with the wastewater after being added to the treatment tank 2.

[0035] Reference Figure 3-5The sealing assembly includes a receiving port 121, which is formed on the surface of the dispersion sleeve 3. Multiple receiving ports 121 communicate with the surface of the dispersion sleeve 3. A fixing rod 122 is longitudinally fixedly connected inside the receiving port 121. A sealing plate 123 is fitted onto the surface of the fixing rod 122. A torsion spring 124 is fixedly connected to the surface of the fixing rod 122. The other end of the torsion spring 124 is fixedly connected to the inner wall of the sealing plate 123. After the torsion spring 124 rotates on the surface of the fixing rod 122, it twists the sealing plate 123 to cover the surface of the dispersion sleeve 3. This ensures that the multiple dispersion holes on the surface of the dispersion sleeve 3 are only opened when high-pressure air mixed with coagulant flows into the treatment tank 2. When no coagulant is added, the multiple dispersion holes on the surface of the dispersion sleeve 3 are sealed by the sealing plate 123. The overflow prevention assembly includes a support block 14. 1. A support block 141 is fixedly connected to the top of the inner wall of the fixed box 4. A stabilizing rod 142 is fixedly connected longitudinally to the inner side of the support block 141. An anti-overflow plate 143 is sleeved on the surface of the stabilizing rod 142. The anti-overflow plate 143 is located at the bottom of the feed hopper 5. A torsion spring 15 is fixedly connected to the surface of the stabilizing rod 142. The other end of the torsion spring 15 is fixedly connected to the inner wall of the anti-overflow plate 143. The torsion spring 15 continuously twists the anti-overflow plate 143 on the surface of the stabilizing rod 142, so that the anti-overflow plate 143 seals the bottom of the feed hopper 5 after the coagulant is added. The feed hopper 5 is sealed by the anti-overflow plate 143 after feeding, preventing the high-pressure air after the electric control valve 7 is opened from overflowing outward from the bottom of the feed hopper 5, so that the high-pressure air concentrates and drives the coagulant to flow to the fixed pipe 6.

[0036] Working principle: When coagulant needs to be added to the treatment tank 2 in the integrated desulfurization wastewater treatment equipment 1 during the coagulation and sedimentation treatment of desulfurization waste liquid, the high-pressure air pump 9 is pre-started to continuously add air to the air storage box 8, and the coagulant is fed into the feed hopper 5. The weight of the coagulant applies pressure to the anti-overflow plate 143, causing the anti-overflow plate 143 to rotate around the stabilizing rod 142 and twist the torsion spring 15. After the coagulant enters the interior of the fixed box 4, the torsion spring 15 twists the anti-overflow plate 143 to cover the bottom of the feed hopper 5 to prevent high-pressure air from overflowing. Then, the electric control valve 7 is opened to allow the air storage box 8 to be pre-filled with high-pressure air. Compressed air flows rapidly into the interior of the fixed box 4, pushing the coagulant to flow. After a portion of the coagulant enters the interior of the dispersion sleeve 3 from the fixed pipe 6, it pushes the sealing plate 123 to flip around the fixed rod 122. The high-pressure air carrying the coagulant flows out from it into the treatment tank 2 to mix with the wastewater. Meanwhile, another portion of the coagulant in the fixed box 4 passes through the limiting block 11 under the flow of high-pressure air and enters the interior of the dispersion pipe 101. It is then dispersed from the bottom and surface of the dispersion pipe 101 to various parts of the treatment tank 2, so that the coagulant can be fully mixed with the wastewater. This achieves the goal of uniformly adding the coagulant to the desulfurization wastewater and mixing it with it during the coagulation and sedimentation treatment of the desulfurization wastewater.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wet desulfurization wastewater treatment device for coal and coke ovens, comprising an integrated desulfurization wastewater treatment unit (1), wherein the interior of the integrated desulfurization wastewater treatment unit (1) is partitioned by a metal plate into a treatment tank (2) for neutralization treatment and coagulation sedimentation wastewater treatment, characterized in that: The treatment tank (2) is equipped with a dispersion sleeve (3) inside. The top of the desulfurization wastewater treatment equipment (1) is equipped with a fixed box (4). The top of the fixed box (4) is connected to a feed hopper (5). The bottom of the fixed box (4) is connected to a fixed pipe (6). The bottom end of the fixed pipe (6) is connected to the top of the dispersion sleeve (3). The outside of the fixed box (4) is threadedly connected to an electric control valve (7). The top of the desulfurization wastewater treatment equipment (1) is fixedly installed with a gas storage box (8). The top of the gas storage box (8) is connected to a high-pressure air pump (9). The outside of the electric control valve (7) is connected to the inside of the gas storage box (8). The dispersion sleeve (3) is equipped with a dispersion component inside. The surface of the dispersion sleeve (3) is fixedly connected with a sealing component. The top of the inner wall of the fixed box (4) is fixedly connected with an anti-overflow component.

2. The wet desulfurization wastewater treatment equipment for coal and coke ovens according to claim 1, characterized in that: The dispersion component includes a dispersion tube (101), which is disposed inside the dispersion sleeve (3). A motor (102) is fixedly installed at the top of the dispersion tube (101), and the bottom of the motor (102) is fixedly installed at the top of the fixing box (4).

3. The wet desulfurization wastewater treatment equipment for coal and coke ovens according to claim 2, characterized in that: The motor (102) is provided with a limiting block (11) at the bottom. The bottom of the limiting block (11) is fixedly installed with the top of the desulfurization wastewater treatment equipment integrated machine (1). The inner side of the limiting block (11) is connected to the surface of the dispersion tube (101).

4. The wet desulfurization wastewater treatment equipment for coal and coke ovens according to claim 1, characterized in that: The sealing assembly includes a receiving port (121) which is opened on the surface of the dispersing sleeve (3). The multiple receiving ports (121) are all in communication with the surface of the dispersing sleeve (3). A fixing rod (122) is fixedly connected longitudinally inside the receiving port (121). A sealing plate (123) is sleeved on the surface of the fixing rod (122). A torsion spring (124) is fixedly connected to the surface of the fixing rod (122). The other end of the torsion spring (124) is fixedly connected to the inner wall of the sealing plate (123).

5. The wet desulfurization wastewater treatment equipment for coal and coke ovens according to claim 1, characterized in that: The inner wall of the dispersion sleeve (3) is fixedly connected to a guide plate (13).

6. The wet desulfurization wastewater treatment equipment for coal and coke ovens according to claim 1, characterized in that: The anti-overflow assembly includes a support block (141), which is fixedly connected to the top of the inner wall of the fixed box (4). A stabilizing rod (142) is fixedly connected to the inner side of the support block (141) longitudinally. An anti-overflow plate (143) is sleeved on the surface of the stabilizing rod (142), and the anti-overflow plate (143) is located at the bottom of the feed hopper (5).

7. The wet desulfurization wastewater treatment equipment for coal and coke ovens according to claim 6, characterized in that: A second torsion spring (15) is fixedly connected to the surface of the stabilizer bar (142), and the other end of the second torsion spring (15) is fixedly connected to the inner wall of the overflow prevention plate (143).

8. The wet desulfurization wastewater treatment equipment for coal and coke ovens according to claim 1, characterized in that: The top of the integrated desulfurization wastewater treatment equipment (1) is fixedly installed with a protective shell (16), which is located outside the gas storage box (8).

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