Absorption tower for simulating absorption of incineration flue gas

Abstract

The utility model relates to the field of experimental simulation equipment, and discloses an absorption tower for simulating incineration flue gas absorption, which comprises a tower bottom, a connecting joint, a tower section, a tower cap, a grid plate, a through hole, a distributor, a notch, a liquid collecting tank, a liquid channel, a first joint and a second joint. According to the absorption tower disclosed by the utility model, the gap between the absorption tower and actual industrial equipment is reduced, and the obtained experimental data can effectively guide the industry, so that the development of absorbing acid gas in recycled flue gas by water can be promoted.

Description

Technical Field

[0001] The utility model relates to the field of experimental simulation equipment, in particular to an absorption tower used for simulating incineration smoke absorption. Background Art

[0002] Incineration is a waste treatment method that refers to the process of making the combustibles in the waste react violently with the oxygen in the air under high temperature conditions, releasing heat and converting into high-temperature gas and a small amount of relatively stable solid residue. Due to its large treatment capacity, good volume reduction and complete harmlessness, the incineration method is increasingly widely used in the treatment of domestic waste and industrial waste. However, since many incineration materials contain a lot of sulfur and chlorine, the flue gas produced by incineration contains acidic gases, which need to be treated by a variety of deacidification processes and enter the absorption tower for absorption and purification before discharge, so that the flue gas meets the emission standards.

[0003] At present, the acidic gases in the incineration flue gas are mostly absorbed by alkaline solution, and finally a mixed salt solution is formed. The mixed salt solution needs to be reduced or rendered harmless before being discharged. In many similar reports, there is a high treatment cost, and a large amount of high-salt wastewater that is difficult to treat is generated.

[0004] The acidic gases in the incineration flue gas can also be separated by water absorption to separate the acidic components. No waste is generated during the treatment process and the useful components in the flue gas can be recovered, which can achieve the purpose of resource utilization of the acidic gases in the incineration flue gas.

[0005] The method of using water absorption to treat acid gases in incineration flue gas is currently not widely used in industry and requires simulation research in the laboratory. When conducting simulation research in the laboratory, conventional glass instruments are usually used. Due to the large gap between conventional glass instruments and actual industrial equipment, the data obtained are usually unable to provide effective guidance for actual industry. Therefore, it is urgent to design a reliable experimental device to replace conventional glass instruments for simulation absorption experiments to promote the development of water absorption resource utilization of acid gases in flue gas. Utility Model Content

[0006] Based on the above problems, the purpose of the utility model is to provide an absorption tower for simulating incineration flue gas absorption to solve the problems existing in the above-mentioned prior art.

[0007] The utility model adopts the following technical solutions:

[0008] The utility model provides an absorption tower for simulating incineration smoke absorption, comprising:

[0009] A tower bottom, wherein a connecting joint is provided at the bottom of the tower bottom, a tower section is detachably connected to the top of the tower bottom, and a tower cap is detachably connected to the top of the tower section;

[0010] A grid plate, the grid plate is arranged in the bottom of the tower, and the grid plate is provided with a plurality of through holes;

[0011] A distributor, the distributor is arranged in the tower section, the side wall of the distributor is provided with a plurality of notches for gas to pass through along the circumferential direction, the top surface of the distributor is provided with a liquid collecting trough, and the bottom surface of the distributor is provided with a plurality of liquid channels connected with the liquid collecting trough;

[0012] A first joint, wherein the top end of the first joint is located above the tower cap, the bottom end of the first joint passes through the tower cap, and extends to above the liquid collecting tank;

[0013] A second joint, one end of which is located at one side of the tower cap, and the other end of which is communicated with the interior of the tower cap.

[0014] Furthermore, the grid plate is a truncated cone structure, and the side wall of the grid plate is connected to the inner top of the tower bottom.

[0015] Furthermore, the tower section is a cylindrical structure.

[0016] Furthermore, first flanges are provided at both upper and lower ends of the tower section, and second flanges are provided at the top of the tower bottom and the bottom of the tower cap, respectively. The first flange and the second flange are detachably connected by bolts.

[0017] Furthermore, the distributor is configured as a cylindrical structure, and the plurality of notches are evenly distributed on the peripheral side wall of the distributor.

[0018] Furthermore, the number of the notches is eight.

[0019] Furthermore, the cross section of the notch is configured as a square structure.

[0020] Furthermore, the first joint and the second joint are both configured as pagoda-shaped structures.

[0021] Compared with the prior art, the beneficial technical effects of the utility model are:

[0022] The absorption tower of the utility model narrows the gap with actual industrial equipment, and the experimental data obtained can effectively guide the industry, thereby promoting the development of water absorption and resource utilization of acidic gases in flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 This is a front cross-sectional view of an absorption tower for simulating incineration flue gas absorption according to the utility model;

[0025] Figure 2 A bottom view of the grid plate of the utility model;

[0026] Figure 3 It is a top view of the distributor of the utility model;

[0027] Figure 4 It is a side sectional view of the distributor of the utility model.

[0028] Explanation of the reference numerals: 1. tower bottom; 101. connecting joint; 2. tower section; 3. tower cap; 4. grid plate; 401. through hole; 5. distributor; 501. notch; 502. liquid collecting tank; 503. liquid channel; 6. first joint; 7. second joint; 8. first flange; 9. second flange. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0030] like Figure 1-Figure 4 As shown, the present embodiment discloses an absorption tower for simulating incineration flue gas absorption, comprising a tower bottom 1, a connecting joint 101 is provided at the bottom of the tower bottom 1, a tower section 2 is detachably connected to the top of the tower bottom 1, and a tower cap 3 is detachably connected to the top of the tower section 2; a grid plate 4 is provided in the tower bottom 1, and a plurality of through holes 401 are provided on the grid plate 4; a distributor 5 is provided in the tower section 2, and a plurality of notches 501 for gas to pass through are circumferentially provided on the side wall of the distributor 5, a liquid collecting trough 502 is provided on the top surface of the distributor 5, and a plurality of liquid channels 503 connected to the liquid collecting trough 502 are provided on the bottom surface of the distributor 5; a first joint 6 and a second joint 7 are fixedly connected to the tower cap 3, the top end of the first joint 6 is located above the tower cap 3, the bottom end passes through the tower cap 3, and extends to above the liquid collecting trough 502; one end of the second joint 7 is located on one side of the tower cap 3, and the other end is connected to the inside of the tower cap 3.

[0031] In this embodiment, the connecting joint 101 is used to connect to one of the interfaces on the four-necked bottle, and the other three interfaces on the four-necked bottle are respectively connected to a peristaltic pump, a bottom tube and a thermometer. An appropriate amount of water is contained in the four-necked bottle, and the peristaltic pump is used to transport the water in the four-necked bottle to the first joint 6. One end of the bottom tube is inserted in the water in the four-necked bottle, and the other end is connected to the air source equipment, and the air source equipment is used to provide a simulated airflow containing acidic components; one end of the thermometer is inserted in the water in the four-necked bottle to measure the temperature of the water in the four-necked bottle.

[0032] The first joint 6 and the second joint 7 are both configured as pagoda-shaped structures, and the first joint 6 is connected to the peristaltic pump; a silicone tube is fixedly connected to the second joint 7, and the end of the silicone tube is directly emptied or connected to the next level of absorption.

[0033] The working process of the above technical scheme is as follows: under the action of the peristaltic pump, the water in the four-necked bottle is transported to the liquid collecting tank 502 of the distributor 5 through the first joint 6, and the water in the liquid collecting tank 502 falls through multiple liquid channels 503; the gas source equipment passes the simulated gas containing acidic components into the water in the four-necked bottle, and the simulated gas escapes from the water surface and enters the tower bottom 1 through the connecting joint 101, and then moves upward through the multiple through holes 401 on the grid plate 4. During the upward movement of the simulated gas, convection is formed with the falling water, and the acidic components in the simulated airflow are absorbed by the water; the airflow after absorption continues to move upward, moves to the tower cap 3 through the notch 501 on the side wall of the distributor 5, and then is discharged through the second joint 7; the water after absorption continues to fall, flows to the tower bottom 1 through the multiple through holes 401 on the grid plate 4, and then flows back to the four-necked bottle through the connecting joint 101.

[0034] It should be noted that the gas source equipment is a prior art, and its working principle and usage are known, which will not be described in detail here.

[0035] By adopting this solution, the absorption tower of the utility model narrows the gap with actual industrial equipment, and the experimental data obtained can effectively guide the industry, thereby promoting the development of water absorption resource utilization of acidic gases in flue gas.

[0036] According to a further optimized solution, the grid plate 4 is a truncated cone structure, and the side wall of the grid plate 4 is fixedly connected to the inner top of the tower bottom 1 .

[0037] In this embodiment, the top diameter of the grid plate 4 is 44 mm, the bottom diameter of the grid plate 4 is 39 mm, and the thickness of the grid plate 4 is 8 mm; the through hole 401 is set as a circular hole with a diameter of 3 mm, and the center distance between two adjacent circular holes is 4.5 mm.

[0038] In a further optimized solution, the tower section 2 is a cylindrical structure. In this embodiment, the inner diameter of the tower section 2 is 44 mm, and the height of the tower section 2 is 250 mm.

[0039] Further optimizing the scheme, the upper and lower ends of the tower section 2 are fixed with first flanges 8, the top of the tower bottom 1 and the bottom of the tower cap 3 are respectively fixed with second flanges 9, and the first flange 8 and the second flange 9 are detachably connected by bolts. The detachable connection between the tower section 2 and the tower bottom 1 and the tower cap 3 is realized by setting the first flange 8 and the second flange 9.

[0040] According to a further optimized solution, the distributor 5 is configured as a cylindrical structure, and a plurality of notches 501 are evenly distributed on the peripheral side wall of the distributor 5 .

[0041] In this embodiment, the diameter of the distributor 5 is 44 mm and the thickness is 15 mm; the number of notches 501 is eight, the cross section of the notch 501 is set to a square structure, and the side length of the cross section of the notch 501 is 4 mm; the side wall between two adjacent notches 501 on the distributor 5 is fixedly connected to the top inner wall of the tower section 2, and the liquid collecting trough 502 is set in the middle of the top surface of the distributor 5, and the diameter of the liquid collecting trough 502 is 28 mm and the depth is 7 mm; the number of liquid channels 503 is four, and the four liquid channels 503 are evenly arranged along the circumference of the liquid collecting trough 502; the liquid channel 503 is a step hole, the upper diameter of the step hole is 8 mm, and the depth is 4 mm; the lower diameter of the step hole is 4 mm, and the depth is 4 mm.

[0042] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. An absorption tower for simulating incineration flue gas absorption, characterized in that: include: A tower bottom (1), wherein a connection joint (101) is provided at the bottom of the tower bottom (1), a tower section (2) is detachably connected to the top of the tower bottom (1), and a tower cap (3) is detachably connected to the top of the tower section (2); A grid plate (4), the grid plate (4) being arranged in the tower bottom (1), and the grid plate (4) being provided with a plurality of through holes (401); A distributor (5), the distributor (5) being arranged in the tower section (2), the side wall of the distributor (5) being provided with a plurality of notches (501) for gas to pass through along the circumferential direction, the top surface of the distributor (5) being provided with a liquid collecting trough (502), and the bottom surface of the distributor (5) being provided with a plurality of liquid channels (503) connected to the liquid collecting trough (502); A first joint (6), the top end of the first joint (6) being located above the tower cap (3), the bottom end of the first joint (6) penetrating the tower cap (3) and extending to above the liquid collecting tank (502); A second joint (7), one end of the second joint (7) is located on one side of the tower cap (3), and the other end is communicated with the interior of the tower cap (3).

2. The absorption tower for simulating incineration flue gas absorption according to claim 1, characterized in that: The grid plate (4) is a truncated cone-shaped structure, and the side wall of the grid plate (4) is connected to the inner top of the tower bottom (1).

3. The absorption tower for simulating incineration flue gas absorption according to claim 1, characterized in that: The tower section (2) is a cylindrical structure.

4. The absorption tower for simulating incineration flue gas absorption according to claim 3, characterized in that: The upper and lower ends of the tower section (2) are both provided with a first flange (8), the top of the tower base (1) and the bottom of the tower cap (3) are respectively provided with a second flange (9), and the first flange (8) and the second flange (9) are detachably connected by bolts.

5. The absorption tower for simulating incineration flue gas absorption according to claim 1, characterized in that: The distributor (5) is configured as a cylindrical structure, and the plurality of notches (501) are evenly distributed on the peripheral side wall of the distributor (5).

6. The absorption tower for simulating incineration flue gas absorption according to claim 5, characterized in that: The number of the notches (501) is eight.

7. The absorption tower for simulating incineration flue gas absorption according to claim 6, characterized in that: The cross section of the notch (501) is configured as a square structure.

8. The absorption tower for simulating incineration flue gas absorption according to claim 1, characterized in that: The first joint (6) and the second joint (7) are both configured as pagoda-shaped structures.

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