Wet-type rotational flow plate purification tower

Abstract

The utility model provides a wet-type rotational flow plate purification tower, which relates to the technical field of purification towers and comprises a base, a tower body is fixedly arranged on the upper surface of the base, a tail gas inlet pipe and a spray pipe are respectively arranged on two sides of the tower body, a rotational flow plate and a nozzle are arranged in the tower body, and a solid-liquid separation mechanism is arranged on the bottom wall of the tower body. The solid-liquid separation mechanism comprises a box body and a bottom plate, the bottom plate is obliquely arranged in the box body, and a partition plate is integrally arranged between the top wall of the box body and the upper surface of the bottom plate. Dust in the sprayed gas can enter the box body along with the spraying liquid, and the dust is finally concentrated in the second cavity and can be discharged from the slag discharging pipe; the liquid is filtered again through the partition plate, is located in the first cavity and is finally discharged from the liquid outlet pipe to be recycled, the solid-liquid separation effect is achieved, the sprayed alkaline circulating liquid is recycled more purely, waste of the sprayed alkaline circulating liquid is reduced, and meanwhile the use cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of purification tower technology, specifically to a wet cyclone plate purification tower. Background Technology

[0002] Common purification towers include those equipped with wet cyclone separators. They mainly work by having the incoming exhaust gas tangentially drive the cyclone separators to rotate and disperse the gas. Then, alkaline circulating liquid is sprayed through nozzles to cause the dust in the gas to settle, thus achieving the effect of dust removal and purification.

[0003] For example, the wet dust collection cyclone plate tower disclosed in the prior art application number CN201720679863.5 has a tower body, with a tail gas outlet at the top of the tower body, and is equipped with a flushing water pipe, a demisting layer, a spray layer, multiple cyclone plates, an upper baffle, an inclined plate, an inclined tube, a lower baffle, and a drain pipe inside; the side wall of the tower body is equipped with a tail gas inlet, a spray liquid inlet, a circulating liquid inlet, a circulating liquid outlet, and a slag discharge port;

[0004] The above solution, through actual use, mainly involves spraying alkaline circulating liquid through nozzles to cause dust and liquid in the gas to settle to the bottom of the tower and into the drain pipe. However, it was found during use that the settled dust would mix with the liquid, resulting in an impure alkaline circulating liquid that could not be recycled and reused in a timely manner, thus increasing the cost of use. Therefore, we improved the above solution based on actual usage. Utility Model Content

[0005] To address the issue that the settled dust mixes with the liquid, resulting in an impure alkaline circulating liquid that cannot be promptly recycled and reused, thus increasing operating costs, this invention aims to provide a wet cyclone plate purification tower.

[0006] To achieve this technical objective, the present invention provides a wet cyclone plate purification tower, comprising a base, a tower body fixedly mounted on the upper surface of the base, an exhaust gas inlet pipe and a spray pipe respectively mounted on both sides of the tower body, a cyclone plate and a nozzle mounted inside the tower body, and a solid-liquid separation mechanism mounted on the bottom wall of the tower body; the solid-liquid separation mechanism comprises a housing and a bottom plate, the bottom plate being inclinedly mounted inside the housing, and a partition integrally mounted between the top wall of the housing and the upper surface of the bottom plate.

[0007] The inner wall of the tower is fixed with a fixing rod by bolts. The outer surface of the spray pipe is welded to the fixing rod. The spray pipe is fixed by the fixing rod and the spray liquid is delivered to the nozzle through the spray pipe.

[0008] The inner wall of the tower is fixed with a liquid guide pipe by bolts. The liquid guide pipe is tapered and its lower end is connected to the tank body. The settled mixture is concentrated through the liquid guide pipe.

[0009] The spray pipe located inside the tower is connected to a nozzle at its top end. Several nozzles are arranged in a ring around the top end of the spray pipe to treat the dust in the gas by settling.

[0010] A swirl plate is mounted on the periphery of the spray pipe via a bearing.

[0011] A slag discharge pipe is installed around the outer perimeter of the box near the bottom slope of the bottom plate, and a liquid discharge pipe is installed around the outer perimeter of the box near the high slope of the bottom plate. The bottom plate supports the dust and liquid.

[0012] A second cavity is provided between the bottom slope of the base plate and the top wall of the box body, and a first cavity is provided between the high slope of the base plate and the top wall of the box body.

[0013] The first cavity is connected to the liquid outlet pipe, and the second cavity is connected to the slag outlet pipe.

[0014] The partition plate has through holes to connect the second cavity and the first cavity, and the dust in the mixture is filtered out through the through holes.

[0015] In this invention, when gas is sprayed, the dust in the gas enters the chamber along with the spray liquid. The dust-liquid mixture then gradually flows from the bottom plate surface to the bottom slope, where it concentrates in the second cavity and can be discharged from the slag outlet pipe. The liquid is filtered again by the partition and enters the first cavity before being discharged from the liquid outlet pipe for recycling, achieving solid-liquid separation. This results in a purer recycling of the sprayed alkaline circulating liquid, reducing waste and lowering operating costs.

[0016] The wet cyclone plate purification tower provided by this utility model is mainly used to treat dusty industrial exhaust gas. Through the synergistic effect of components such as cyclone plates, spray pipes, nozzles and solid-liquid separation mechanisms, the exhaust gas is purified. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the wet cyclone plate purification tower of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal connection structure of the tower body of this utility model;

[0019] Figure 3 This is a schematic diagram of the solid-liquid separation mechanism of this utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of the solid-liquid separation mechanism of this utility model.

[0021] The components are as follows: 1. Base; 2. Tower body; 3. Exhaust gas inlet pipe; 4. Spray pipe; 5. Swirl plate; 6. Nozzle; 7. Solid-liquid separation mechanism; 71. Box body; 72. Bottom plate; 73. Liquid outlet pipe; 74. Slag outlet pipe; 75. Baffle plate; 76. Through hole; 77. Cavity No. 1; 78. Cavity No. 2; 8. Fixing rod; 9. Liquid guide pipe. Detailed Implementation

[0022] The utility model of this application will be further described in detail below with reference to the accompanying drawings and specific embodiments. In order to provide a clear and complete description of the technical solution, the following embodiments are selected for illustration; other embodiments obtained based on the content described in this application without creative effort are all within the scope of protection of this utility model.

[0023] In the following embodiments, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of clearly describing this embodiment, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, and therefore should not be construed as a limitation of this application.

[0024] like Figures 1 to 4 As shown, this utility model embodiment provides a wet cyclone plate purification tower, including a base 1, a tower body 2 fixedly mounted on the upper surface of the base 1, an exhaust gas inlet pipe 3 and a spray pipe 4 respectively mounted on both sides of the tower body 2, a cyclone plate 5 and a nozzle 6 mounted inside the tower body 2, and a solid-liquid separation mechanism 7 mounted on the bottom wall of the tower body 2; the solid-liquid separation mechanism 7 includes a box 71 and a bottom plate 72, the bottom plate 72 being inclined inside the box 71 at an angle of 30-60 degrees; a partition 75 is integrally mounted between the top wall of the box 71 and the upper surface of the bottom plate 72. A fixing rod 8 is fixedly mounted on the inner wall of the tower body 2 by bolts, and the outer surface of the spray pipe 4 is welded to the fixing rod 8. A liquid guide pipe 9 is fixedly mounted on the inner wall of the tower body 2 by bolts, the liquid guide pipe 9 being conical and its lower end communicating with the box 71. The liquid guide pipe 9 facilitates the concentration of the settled mixture; the top of the spray pipe 4 located inside the tower body 2 is connected to nozzles 6, with 6-10 nozzles 6; several nozzles 6 are arranged in a ring around the top of the spray pipe 4. Swirl plates 5 are rotatably mounted around the periphery of the spray pipe 4 via bearings. Dust-laden industrial exhaust gas enters the tower body 2 through the exhaust gas inlet pipe 3, where it rotates tangentially to the blades of the swirl plates 5, generating centrifugal velocity to achieve separation. The dust-laden industrial exhaust gas passes through multiple swirl plates 5 sequentially from bottom to top, with 3-6 swirl plates 5 in number; simultaneously, multiple nozzles 6 spray alkaline circulating liquid downwards and contact the gas, resulting in gas-to-liquid mass transfer. In the liquid phase, the acidic gas components neutralize with the alkaline solution, achieving purification. The purified gas is discharged from the top of the tower body 2.

[0025] refer to Figure 2 and Figure 3 A slag discharge pipe 74 is installed around the periphery of the box 71 near the bottom slope of the bottom plate 72, and a liquid discharge pipe 73 is installed around the periphery of the box 71 near the high slope of the bottom plate 72. A second cavity 78 is provided between the bottom slope of the bottom plate 72 and the top wall of the box 71, and a first cavity 77 is provided between the high slope of the bottom plate 72 and the top wall of the box 71. The first cavity 77 is connected to the liquid discharge pipe 73, and the second cavity 78 is connected to the slag discharge pipe 74. A through hole 76 is provided in the partition plate 75 to connect the second cavity 78 and the first cavity 77. Meanwhile, the diameter of the through hole 76 is 200-500 micrometers. Dust in the gas is sprayed and will first settle into the liquid guide pipe 9 along with the spray liquid, and then enter the box 71 in the solid-liquid separation mechanism 7. The dust-liquid mixture in the box 71 will gradually flow from the surface of the bottom plate 72 to the bottom slope of the bottom plate 72. Due to gravity, the dust will concentrate in the second cavity 78 and can be discharged from the slag outlet pipe 74. The liquid will be filtered again through the partition 75 and enter the first cavity 77, and finally be discharged from the liquid outlet pipe 73 and recycled.

[0026] Working principle: Dust-laden industrial exhaust gas enters tower body 2 through exhaust gas inlet pipe 3, where it rotates due to tangential contact with the blades of cyclone separator 5, generating centrifugal velocity to achieve separation. The dust-laden industrial exhaust gas passes through multiple cyclone separators 5 sequentially from bottom to top. Simultaneously, nozzles 6 spray alkaline circulating liquid downwards, which comes into contact with the gas, resulting in gas-to-liquid mass transfer. In the liquid phase, acidic gas components neutralize with the alkaline solution, achieving purification. The purified gas is discharged from the top of tower body 2.

[0027] Dust in the gas, when sprayed, first settles into the liquid guide pipe 9 along with the spray liquid, and then enters the box 71 in the solid-liquid separation mechanism 7. The dust-liquid mixture in the box 71 gradually flows from the surface of the bottom plate 72 to the bottom slope of the bottom plate 72. Due to gravity, the dust will concentrate in the second cavity 78 and can be discharged from the slag outlet pipe 74. The liquid will be filtered again through the baffle 75 and enter the first cavity 77 before finally being discharged from the liquid outlet pipe 73 for recycling, achieving the effect of solid-liquid separation. This makes the recycling of the sprayed alkaline circulating liquid purer, reduces the waste of sprayed alkaline circulating liquid, and reduces the cost of use.

[0028] As can be seen from the above, the wet cyclone plate purification tower provided in this embodiment is mainly used to treat dusty industrial exhaust gas. Through the synergistic effect of components such as cyclone plate 5, spray pipe 4, nozzle 6 and solid-liquid separation mechanism 7, the exhaust gas is purified.

[0029] Base 1 and tower body 2: Base 1 is used to support the entire purification tower, while tower body 2 serves as the main site for exhaust gas treatment and chemical reactions.

[0030] Exhaust gas inlet pipe 3 and spray pipe 4: Exhaust gas inlet pipe 3 is responsible for introducing the dust-laden industrial exhaust gas to be treated, while spray pipe 4 is used to spray alkaline circulating liquid downwards.

[0031] Swirl plate 5 and nozzle 6: Swirl plate 5 causes the exhaust gas to rotate through its blade structure, increasing the gas-liquid contact area and improving the separation effect; nozzle 6 is responsible for uniformly spraying alkaline circulating liquid into the exhaust gas.

[0032] Solid-liquid separation mechanism 7 includes components such as housing 71, bottom plate 72, partition plate 75, slag discharge pipe 74 and liquid discharge pipe 73, which are used to realize solid-liquid separation of dust-liquid mixture and ensure the recovery and reuse of alkaline circulating liquid.

[0033] Box 71: Used to contain the dust-liquid mixture and achieve solid-liquid separation.

[0034] Base plate 72: The dust-liquid mixture flows on the base plate, and the dust is deposited due to gravity.

[0035] Discharge pipe 73: Used to discharge the filtered alkaline circulating liquid for recycling and reuse.

[0036] Slag discharge pipe 74: Used to discharge dust deposited on the bottom plate and keep the solid-liquid separation mechanism clean.

[0037] Baffle 75: Used for further filtration of the liquid to ensure the quality of the recovered alkaline circulating liquid.

[0038] Exhaust gas treatment process:

[0039] Dust-laden industrial exhaust gas enters tower body 2 through exhaust gas inlet pipe 3, where it comes into tangential contact with the blades of swirl plates 5, generating rotation and centrifugal velocity, achieving initial separation. The exhaust gas passes through multiple swirl plates 5 sequentially from bottom to top, while simultaneously, nozzles 6 spray alkaline circulating liquid downwards, ensuring full contact with the exhaust gas and causing gas-to-liquid mass transfer. In the liquid phase, acidic gas components undergo a neutralization reaction with the alkaline solution, achieving purification. The purified gas is discharged from the top of tower body 2.

[0040] Solid-liquid separation process:

[0041] Dust in the gas is sprayed and, along with the spray liquid, settles into the liquid guide pipe 9, then enters the housing 71 of the solid-liquid separation mechanism 7. The dust-liquid mixture gradually flows from the surface of the bottom plate 72 to the bottom slope of the bottom plate. The dust, under the influence of gravity, concentrates in the second cavity 78 and can be discharged from the slag outlet pipe 74. The liquid is filtered again by the partition 75, remains in the first cavity 77, and is finally discharged from the liquid outlet pipe 73 for recycling.

[0042] Advantages of the solution:

[0043] High-efficiency purification: The exhaust gas is purified efficiently through the synergistic effect of the swirl plate 5, spray pipe 4 and nozzle 6.

[0044] Solid-liquid separation: The solid-liquid separation mechanism 7 ensures the recovery and reuse of alkaline circulating liquid, reducing waste and operating costs.

[0045] Simple structure: The entire purification tower has a compact, simple, and easy-to-understand structure, making it easy to install and maintain.

[0046] In summary, the wet cyclone separator solution provided in this embodiment of the invention, through its reasonable structural design and working principle, achieves effective purification of dust-laden industrial exhaust gas and ensures the recovery and reuse of alkaline circulating liquid. Furthermore, this solution has advantages such as simple structure, ease of installation and maintenance, and possesses high practical value and application prospects.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present utility model should be included within the protection scope of the technical solution of the present utility model.

Claims

1. A wet cyclone plate purification tower, comprising a base (1), a tower body (2) fixedly disposed on the upper surface of the base (1), an exhaust gas inlet pipe (3) and a spray pipe (4) respectively disposed on both sides of the tower body (2), and a cyclone plate (5) and a nozzle (6) disposed inside the tower body (2), characterized in that: The bottom wall of the tower body (2) is provided with a solid-liquid separation mechanism (7). The solid-liquid separation mechanism (7) includes a box (71) and a bottom plate (72). The bottom plate (72) is inclinedly disposed inside the box (71). A partition (75) is integrally disposed between the top wall of the box (71) and the upper surface of the bottom plate (72).

2. The wet cyclone separator according to claim 1, characterized in that: The inner wall of the tower body (2) is fixed with a fixing rod (8) by bolts, and the outer surface of the spray pipe (4) is welded to the fixing rod (8).

3. The wet cyclone separator according to claim 2, characterized in that: The inner wall of the tower body (2) is fixed with a liquid guide pipe (9) by bolts. The liquid guide pipe (9) is tapered and its lower end is connected to the box body (71).

4. The wet cyclone separator according to claim 1, characterized in that: The top end of the spray pipe (4) located inside the tower body (2) is connected to a nozzle (6), and a plurality of the nozzles (6) are arranged in a ring around the top end of the spray pipe (4).

5. The wet cyclone separator according to claim 4, characterized in that: A swirl plate (5) is installed around the spray pipe (4) via a bearing.

6. The wet cyclone separator according to claim 1, characterized in that: A slag discharge pipe (74) is provided around the box (71) near the bottom slope of the bottom plate (72), and a liquid discharge pipe (73) is provided around the box (71) near the high slope of the bottom plate (72).

7. The wet cyclone separator according to claim 6, characterized in that: A second cavity (78) is provided between the bottom slope of the bottom plate (72) and the top wall of the box (71), and a first cavity (77) is provided between the high slope of the bottom plate (72) and the top wall of the box (71).

8. The wet cyclone separator according to claim 7, characterized in that: The first cavity (77) is connected to the liquid outlet pipe (73), and the second cavity (78) is connected to the slag outlet pipe (74).

9. The wet cyclone separator according to claim 8, characterized in that: The partition (75) has a through hole (76) for connecting the second cavity (78) and the first cavity (77).

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