Fractional evaporation device for desulfurization wastewater

Abstract

The utility model relates to a desulfurization waste water grading evaporation device, which comprises a tower body, which comprises a main tower, a spacer, a bottom partition plate, a first partition plate and a second partition plate, and is characterized in that the spacer is arranged in the main tower; the bottom partition plate is arranged below the spacer at the bottom end; the first partition plates are arranged between the adjacent distance pieces; the second partition plate is arranged above the distance piece at the top end; the air return part is arranged on the outer surface of the main tower; and the top cover is arranged at the top end of the main tower. According to the flue gas treatment device, the main tower, the distance piece, the supporting legs, the first spraying pipe, the second spraying pipe and the like are arranged, the distance piece is matched with the supporting legs, the interior of the main tower is divided into different areas, and in the different areas, flue gas is subjected to multi-stage spraying treatment through the first spraying pipe and the second spraying pipe; further, the sprayed wastewater can be in full contact with the flue gas, and the effect of wastewater evaporation is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to desulfurization tower technical field, concretely relates to a desulfurization wastewater grading evaporation device. BACKGROUND

[0002] Desulfurization tower is the tower type equipment to the industrial waste gas carries out the desulfurization treatment, and desulfurization tower is also called evaporation tower etc., and in industry, through the flue gas evaporation method to the industrial wastewater, in the treatment process, the industrial wastewater is sprayed to the desulfurization tower, then the flue gas is passed in, and the flue gas is heated to the wastewater through the waste heat, makes the water in wastewater absorb heat and produce steam to discharge, and further realizes the effect of wastewater desulfurization, at this time, the wastewater concentrate stays in the inside of desulfurization tower.

[0003] The flue gas after the spray treatment of the traditional desulfurization tower is directly discharged, in order to control the manufacturing cost of the desulfurization tower, the desulfurization tower will not be too high when being made, therefore the time of flue gas staying in the desulfurization tower is limited, which leads to the flue gas discharged still having high residual temperature and not being fully utilized, therefore the desulfurization wastewater grading evaporation device is provided to solve the above problems. SUMMARY

[0004] Based on the above description, the utility model provides a desulfurization wastewater grading evaporation device to solve the problem of insufficient utilization of the waste heat of the existing desulfurization tower.

[0005] The technical scheme that the utility model solves the above technical problem is as follows: a desulfurization wastewater grading evaporation device, comprising: a tower body, the tower body includes a main tower, a spacer, a bottom baffle, a first baffle and a second baffle, the spacer is arranged in the inside of the main tower, the bottom baffle is arranged below the spacer at the bottom end, the first baffle is arranged between adjacent spacers, the second baffle is arranged above the spacer at the top end, a gas return member is arranged on the outer surface of the main tower and simultaneously communicates with the main tower and the spacer, a top cover is arranged on the top end of the main tower and communicates with the spacer.

[0006] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0007] Further, the main tower includes a bottom tower, an intermediate tower and a top tower, the bottom tower, the intermediate tower and the top tower are sequentially connected with each other by screws and nuts from bottom to top, the bottom end of the intermediate tower and the top tower is provided with a second spray pipe extending to the outside of the main tower, and the outer surface of the bottom tower is provided with a side hole.

[0008] Further, the spacer includes a hollow member, the upper surface of the hollow member is provided with a communication hole and a limiting groove, and the side surface of the hollow member is provided with a threaded side hole.

[0009] Furthermore, a vertical rod is provided on the lower surface of the hollow component, and a threaded blind hole is provided on the side of the vertical rod near the center line of the hollow component. A threaded side tube is provided inside the threaded side hole and communicates with the spacer.

[0010] Furthermore, the vertical rod is provided with a support leg on its exterior. The support leg includes a support foot body. The upper surface of the support foot body is provided with a vertical hole. The vertical rod extends into the interior of the vertical hole. An opening groove is provided on the side of the vertical hole near the center line of the hollow part. A screw passes through the opening groove and is threadedly connected to the vertical rod.

[0011] Furthermore, the bottom partition includes a plate body, one side of which is provided with a through hole. The plate body is disposed below the bottom spacer and extends into the interior of the limiting groove.

[0012] Furthermore, the air return component includes a first semicircular frame and a second semicircular frame, both of which have interconnected annular holes inside, and are connected to each other by screws and nuts.

[0013] Furthermore, a positioning tube and a positioning post are respectively provided on opposite sides of the first semicircular frame and the second semicircular frame. The positioning tube is connected to the annular hole. The positioning post and the positioning tube pass through the side hole and extend into the interior of the main tower. A vertical gas supply pipe is provided on the side of the first semicircular frame away from the second semicircular frame. A horizontal pipe is provided on the side of the vertical gas supply pipe close to the main tower. The horizontal pipe is located outside the threaded side pipe. A sealing ring that contacts the inner wall of the horizontal pipe is sleeved on the outside of the threaded side pipe.

[0014] Furthermore, the top cover includes a cover body, the top of which is provided with a first vent hood and a second vent hood, the inside of which is provided with a partition plate, the bottom of which is provided with a first spray pipe, the partition plate divides the space inside the cover body into left and right parts, and the two parts are respectively connected to the first vent hood and the second vent hood.

[0015] Furthermore, a connecting pipe is provided at the top of the first spray pipe, an air pump is provided at the bottom of the connecting pipe, and a return pipe is provided at the bottom of the air pump. The return pipe is connected to the threaded side pipe.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0017] 1. This utility model sets up components such as a main tower, spacers, support legs, a first spray pipe, and a second spray pipe. Through the cooperation between the spacers and support legs, the interior of the main tower is divided into different areas. In different areas, the flue gas is treated by multi-stage spraying through the first and second spray pipes, so that the sprayed wastewater can fully contact the flue gas and achieve the effect of wastewater evaporation.

[0018] 2. By configuring components such as the main tower, return gas component, top cover, spacer, bottom baffle, first baffle, and second baffle, the main tower is divided into left and right zones. When the flue gas enters the left zone and flows upward, it undergoes spray treatment. Under the action of the top cover, the flue gas flows back to the right zone of the main tower along the return gas component, increasing the flue gas flow path and allowing the flue gas to stay in the desulfurization tower for a longer time, thus achieving more complete heat exchange and fully utilizing the waste heat of the flue gas. Attached Figure Description

[0019] Figure 1 A schematic diagram of a desulfurization wastewater staged evaporation device provided in an embodiment of this utility model;

[0020] Figure 2 This is a structural cross-sectional view of the tower body in an embodiment of this utility model;

[0021] Figure 3 for Figure 2 Another structural diagram from a different perspective;

[0022] Figure 4 This is a schematic diagram of the air return component in an embodiment of this utility model;

[0023] Figure 5 This is a schematic diagram of the top cover structure in an embodiment of the present utility model;

[0024] Figure 6 for Figure 5 Another structural diagram from a different perspective;

[0025] Figure 7 This is a schematic diagram of the connection structure between the spacer and the support foot in an embodiment of this utility model;

[0026] Figure 8 This is a schematic diagram of the spacer structure in an embodiment of the present utility model;

[0027] Figure 9 This is a schematic diagram of the support leg in an embodiment of the present invention;

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Main tower; 11. Bottom tower; 12. Intermediate tower; 13. Top tower; 2. Return gas component; 21. First semicircular frame; 22. Second semicircular frame; 23. Annular hole; 24. Positioning column; 25. Positioning tube; 26. Vertical gas supply pipe; 27. Horizontal pipe; 3. Top cover; 31. Cover body; 32. First gas outlet hood; 33. Second gas outlet hood; 34. Divider plate; 35. First spray pipe; 36. Connecting pipe; 37. Air pump; 38. Return pipe; 4. Spacer; 41. Hollow component; 42. Connecting hole; 43. Threaded side hole; 44. Vertical rod; 45. Limiting groove; 5. Threaded side tube; 6. Support leg; 61. Support leg body; 62. Vertical hole; 63. Opening groove; 7. Bottom partition plate; 71. Plate body; 72. Through hole; 8. First partition plate; 9. Second partition plate; 10. Second spray pipe. Detailed Implementation

[0030] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0032] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0033] Please see Figures 1-3 As shown, a staged evaporation device for desulfurization wastewater includes:

[0034] The tower body, which includes the main tower 1;

[0035] The main tower 1 includes a base tower 11, an intermediate tower 12 and a top tower 13. The base tower 11, the intermediate tower 12 and the top tower 13 are connected to each other from bottom to top by screws and nuts. The bottom ends of the intermediate tower 12 and the top tower 13 are provided with second spray pipes 10 extending to the outside of the main tower 1. The outer surface of the base tower 11 is provided with side holes.

[0036] Based on the above, the arrangement of the bottom tower 11, the intermediate tower 12 and the top tower 13 allows the second spray pipe 10 to be installed between two adjacent bottom towers 11, intermediate towers 12 and top towers 13, and also allows the spacer 4 to be installed sequentially.

[0037] like Figures 1-3 , Figures 7-9 As shown, spacer 4 is disposed inside the main tower 1. Spacer 4 includes a hollow part 41. The upper surface of the hollow part 41 is provided with a connecting hole 42 and a limiting groove 45. The side of the hollow part 41 is provided with a threaded side hole 43. The lower surface of the hollow part 41 is provided with a vertical rod 44. The side of the vertical rod 44 near the center line of the hollow part 41 is provided with a threaded blind hole. The threaded side hole 43 is provided with a threaded side tube 5, which is in communication with the spacer 4.

[0038] The vertical rod 44 is provided with a support leg 6 on its outside. The support leg 6 includes a support foot body 61. The upper surface of the support foot body 61 is provided with a vertical hole 62. The vertical rod 44 extends into the interior of the vertical hole 62. The vertical hole 62 is provided with an opening groove 63 on one side near the center line of the hollow part 41. A screw passes through the opening groove 63 and is threadedly connected to the vertical rod 44.

[0039] The bottom partition 7 includes a plate body 71, a through hole 72 is provided on one side of the plate body 71, the plate body 71 is disposed below the bottom spacer 4 and extends into the interior of the limiting groove 45;

[0040] Based on the above, the threaded side hole 43 allows the spacer 4 and the main tower 1 to be connected to each other through the threaded side pipe 5. After connection, the flue gas can flow upward through the connecting hole 42. The vertical rod 44 and the threaded blind hole allow the support leg 6 to be connected to the vertical rod 44 through screws. The height of the spacer 4 can be changed by adjusting the distance between the support leg 6 and the hollow part 41. The bottom partition 7 allows the bottom spacer 4 and the tower body 1 to be separated into two areas. The wastewater remaining between the two areas can flow between each other through the through hole 72, so that the wastewater can be pumped back to the inside of the first spray pipe and the second spray pipe.

[0041] like Figures 1-3 as well as Figure 4 As shown, the first partition 8 is disposed between adjacent spacers 4;

[0042] The second partition 9 is disposed above the top spacer 4;

[0043] The return gas component 2 is disposed on the outer surface of the main tower 1 and is simultaneously connected to the main tower 1 and the spacer 4. The return gas component 2 includes a first semicircular frame 21 and a second semicircular frame 22. The interior of the first semicircular frame 21 and the second semicircular frame 22 are provided with annular holes 23 that are interconnected. The first semicircular frame 21 and the second semicircular frame 22 are connected to each other by screws and nuts.

[0044] A positioning tube 25 and a positioning post 24 are respectively provided on the opposite side of the first semicircular frame 21 and the second semicircular frame 22. The positioning tube 25 is connected to the annular hole 23. The positioning post 24 and the positioning tube 25 pass through the side hole and extend into the interior of the main tower 1. A vertical gas supply pipe 26 is provided on the side of the first semicircular frame 21 away from the second semicircular frame 22. A horizontal pipe 27 is provided on the side of the vertical gas supply pipe 26 close to the main tower 1. The horizontal pipe 27 is located outside the threaded side pipe 5. A sealing ring that contacts the inner wall of the horizontal pipe 27 is sleeved on the outside of the threaded side pipe 5.

[0045] Based on the above, the first partition 8 and the second partition 9 divide the main tower 1 into two areas, left and right. The two areas are connected to each other through the return gas component 2 and the top cover 3. The flue gas enters from the air inlet of the bottom tower 11, flows upward and flows into the interior of the hollow component 41 after passing through the top cover 3. The flue gas flows through the hollow component 41, the horizontal pipe 27, the vertical gas conveying pipe 26, the annular hole 23 and the positioning pipe 25 in sequence, and flows into the interior of the main tower 1 from the side hole. At this time, the flue gas flows upward and passes through the spraying operation again during the flow, so that the flue gas can fully contact the sprayed wastewater.

[0046] like Figure 1 , Figure 5 and Figure 6 As shown, the top cover 3 is located at the top of the main tower 1 and is interconnected with the spacer 4;

[0047] The top cover 3 includes a cover body 31. The top of the cover body 31 is provided with a first vent 32 and a second vent 33. The interior of the cover body 31 is provided with a partition plate 34. The bottom of the partition plate 34 is provided with a first spray pipe 35. The partition plate 34 divides the interior space of the cover body 31 into left and right parts, and the two parts are respectively connected to the first vent 32 and the second vent 33.

[0048] The first spray pipe 35 is provided with a connecting pipe 36 at its top end, an air pump 37 is provided at the bottom end of the connecting pipe 36, and a return pipe 38 is provided at the bottom end of the air pump 37. The return pipe 38 is connected to the threaded side pipe 5.

[0049] Based on the above, the top cover 3 and the second partition 9 cooperate with each other. Under the action of the air pump 37, the flue gas inside the main tower 1 flows into the interior of the connecting pipe 36 from the second exhaust hood 33 and into the interior of the hollow component 41 from the return pipe 38. At this time, the flue gas flows along the hollow component 41 and then flows back into the interior of the main tower 1 from the return component 2. At this time, it flows into the area on the right side of the main tower 1 and is discharged from the first exhaust hood 32 after passing through multiple spray stages.

[0050] In actual use, the main tower 1 is divided into multiple zones by the spacer 4. The multiple zones can be sprayed in a multi-level manner by the cooperation of the first spray pipe 35 and the second spray pipe 10.

[0051] The first partition 8, the second partition 9, the bottom partition 7, and the partition plate 34 work together to divide the main tower 1 into two areas, left and right. The two areas are connected to each other through the spacer 4 and the return gas component 2, so that the flue gas can be re-sprayed after passing through multiple stages of spraying. The left and right partitioning and the upper and lower partitioning extend the flue gas flow path, so that the flue gas can fully contact the sprayed wastewater. The flue gas flowing through the hollow component 41 can heat the hollow component 41, which on the one hand extends the residence time of the flue gas in the desulfurization tower to increase the heat exchange time, and on the other hand, the hollow component 41 can reuse the residual heat in the flue gas to raise the temperature inside the main tower 1, so that the wastewater is more easily evaporated and discharged when it is sprayed out.

[0052] Compared to traditional desulfurization towers, this desulfurization tower has a longer flue gas path at the same height. Through multi-stage spraying, it can make full use of the waste heat of the flue gas, thereby avoiding the waste of flue gas waste heat.

[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 staged evaporation device for desulfurization wastewater, characterized in that, include: The tower body includes a main tower (1), spacers (4), a bottom partition (7), a first partition (8), and a second partition (9), wherein, Spacer (4), which is disposed inside the main tower (1); A bottom partition (7) is disposed below the bottom spacer (4); A first partition (8) is disposed between adjacent spacers (4); The second partition (9) is disposed above the top spacer (4); The return gas component (2) is disposed on the outer surface of the main tower (1) and is simultaneously connected to the main tower (1) and the spacer (4); The top cover (3) is located at the top of the main tower (1) and is connected to the spacer (4).

2. The staged evaporation device for desulfurization wastewater according to claim 1, characterized in that, The main tower (1) includes a bottom tower (11), an intermediate tower (12) and a top tower (13). The bottom tower (11), the intermediate tower (12) and the top tower (13) are connected to each other from bottom to top by screws and nuts. The bottom ends of the intermediate tower (12) and the top tower (13) are provided with second spray pipes (10) extending to the outside of the main tower (1). The outer surface of the bottom tower (11) is provided with side holes.

3. The staged evaporation device for desulfurization wastewater according to claim 2, characterized in that, The spacer (4) includes a hollow part (41), the upper surface of which is provided with a connecting hole (42) and a limiting groove (45), and the side of which is provided with a threaded side hole (43).

4. The staged evaporation device for desulfurization wastewater according to claim 3, characterized in that, A vertical rod (44) is provided on the lower surface of the hollow part (41). A threaded blind hole is provided on the side of the vertical rod (44) near the center line of the hollow part (41). A threaded side tube (5) is provided inside the threaded side hole (43) and is connected to the spacer (4).

5. The staged evaporation device for desulfurization wastewater according to claim 4, characterized in that, The vertical rod (44) is provided with a support leg (6) on its outside. The support leg (6) includes a support foot body (61). The upper surface of the support foot body (61) is provided with a vertical hole (62). The vertical rod (44) extends into the interior of the vertical hole (62). The vertical hole (62) is provided with an opening groove (63) on the side near the center line of the hollow part (41). A screw passes through the opening groove (63) and is threadedly connected to the vertical rod (44).

6. The staged evaporation device for desulfurization wastewater according to claim 3, characterized in that, The bottom partition (7) includes a plate body (71), one side of which is provided with a through hole (72). The plate body (71) is located below the bottom spacer (4) and extends into the interior of the limiting groove (45).

7. The staged evaporation device for desulfurization wastewater according to claim 4, characterized in that, The return air component (2) includes a first semicircular frame (21) and a second semicircular frame (22). The interior of the first semicircular frame (21) and the second semicircular frame (22) are provided with annular holes (23) that communicate with each other. The first semicircular frame (21) and the second semicircular frame (22) are connected to each other by screws and nuts.

8. The staged evaporation device for desulfurization wastewater according to claim 7, characterized in that, The first semicircular frame (21) and the second semicircular frame (22) are respectively provided with a positioning tube (25) and a positioning post (24) on opposite sides. The positioning tube (25) is connected to the annular hole (23). The positioning post (24) and the positioning tube (25) pass through the side hole and extend into the interior of the main tower (1). The first semicircular frame (21) is provided with a vertical gas supply pipe (26) on the side away from the second semicircular frame (22). The vertical gas supply pipe (26) is provided with a horizontal pipe (27) on the side close to the main tower (1). The horizontal pipe (27) is provided outside the threaded side pipe (5). The threaded side pipe (5) is fitted with a sealing ring that contacts the inner wall of the horizontal pipe (27).

9. The staged evaporation device for desulfurization wastewater according to claim 4, characterized in that, The top cover (3) includes a cover body (31), the top of the cover body (31) is provided with a first air vent (32) and a second air vent (33), the inside of the cover body (31) is provided with a partition plate (34), the bottom of the partition plate (34) is provided with a first spray pipe (35), the partition plate (34) divides the space inside the cover body (31) into left and right parts, and the two parts of the space are respectively connected to the first air vent (32) and the second air vent (33).

10. The staged evaporation device for desulfurization wastewater according to claim 9, characterized in that, The first spray pipe (35) is provided with a connecting pipe (36) at the top end, and an air pump (37) is provided at the bottom end of the connecting pipe (36). A return pipe (38) is provided at the bottom end of the air pump (37). The return pipe (38) is connected to the threaded side pipe (5).

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