Chlorination absorption tower for sodium dichloroisocyanurate production

Abstract

The utility model provides a chlorination absorption tower for production of sodium dichloroisocyanurate, which comprises an absorption tower body and an induced draft fan, a gas equalizing plate, a demister, a water distributor and a filler support are sequentially mounted in the absorption tower body from top to bottom, and a water collecting tank is in flange connection with a gas inlet at the lower part of one side of the absorption tower body; and a sewer pipe is integrally arranged at the lower part of the water collecting tank. Due to the arrangement of the water collecting tank, the sewer pipe and the water valve, the situation that the air inlet pipe is corroded by spraying liquid is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical production, and particularly relates to a chlorination absorption tower for the production of sodium dichloroisocyanurate. Background Art

[0002] Sodium dichloroisocyanurate is an organic compound and a highly oxidizing disinfectant. Currently, the production equipment of sodium dichloroisocyanurate includes a chlorination absorption tower. The working principle of the chlorination tower mainly includes absorption and regeneration. During the absorption process, the gas is in contact with the spraying liquid and reacts chemically with it to convert the gas into harmless compounds. The existing chlorination absorption tower usually includes a tower body, a water distributor for spraying liquid is installed inside the tower body, a packing layer is arranged at the lower part of the water distributor, and a fan is installed outside the tower body. When the fan extracts the gas in the tower through the trumpet-shaped upper end of the tower body, the gas in the middle of the tower body is sucked with a larger suction force, so the reaction process with the sprayed liquid is shorter, which affects the effect of gas treatment, and the air inlet pipe of the tower body is at the lower part of the tower body, and the sprayed liquid may flow back into the air inlet pipe to cause corrosion to the air inlet pipe. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a sodium dichloroisocyanurate production chlorination absorption tower, which makes the gas more uniform when being sucked out, ensures the gas treatment effect, and reduces the corrosion of the spray liquid on the intake pipe.

[0004] The utility model is realized by the following technical solutions:

[0005] A chlorination absorption tower for producing sodium dichloroisocyanurate comprises an absorption tower body and an induced draft fan, wherein an air equalizing plate, a demister, a water distributor and a packing support are sequentially installed inside the absorption tower body from top to bottom, a water collecting tank is flange-connected at an air inlet at a lower part of one side of the absorption tower body, a downpipe is integrally arranged at the lower part of the water collecting tank, a water valve is flange-connected at the lower end of the downpipe, and an air inlet pipe is flange-connected at a side of the water collecting tank away from the absorption tower body.

[0006] Preferably, the interior of the air equalizing plate is provided with air holes in sequence from the center of the circle to the outside.

[0007] Preferably, the diameters of the pores increase from the center of the air equalizing plate outwards.

[0008] Preferably, the interior of the filler support is filled with a filler layer.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. In the utility model, the arrangement of the water collecting box, the downpipe and the water valve reduces the corrosion of the air inlet pipe by the spray liquid.

[0011] 2. In the utility model, the arrangement of the air holes on the air equalizing plate makes the gas more evenly sucked out, thus ensuring the gas treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a schematic diagram of the structure inside the absorption tower body of the utility model.

[0014] In the figure:

[0015] 1. Absorption tower body; 11. Air distribution plate; 12. Air holes; 13. demister; 14. Water distributor; 15. Packing support; 16. Packing layer; 2. induced draft fan; 3. Connecting pipe; 4. Exhaust pipe; 5. Water collecting tank; 51. Downpipe; 52. Water valve; 53. Inlet pipe. DETAILED DESCRIPTION

[0016] The utility model is described in detail below in conjunction with the accompanying drawings. Figure 1 and attached Figure 2 As shown, a chlorination absorption tower for producing sodium dichloroisocyanurate comprises an absorption tower body 1 and an induced draft fan 2, a connecting pipe 3 is flange-connected between the upper air outlet of the absorption tower body 1 and the air inlet of the induced draft fan 2, an exhaust pipe 4 is flange-connected to the air outlet of the induced draft fan 2, a water collecting box 5 is flange-connected to the lower air inlet of one side of the absorption tower body 1, a downpipe 51 is integrally arranged at the lower part of the water collecting box 5, a water valve 52 is flange-connected to the lower end of the downpipe 51, an air inlet pipe 53 is flange-connected to the side of the water collecting box 5 away from the absorption tower body 1, gas generated in the process of producing sodium dichloroisocyanurate enters the absorption tower body 1 through the air inlet pipe 53 and the water collecting box 5, the water collecting box 5 is used to collect the solution backflowing from the absorption tower body 1, and the downpipe 51 and the water valve 52 are used to discharge the solution.

[0017] In this embodiment, combined with the Figure 2 As shown, the interior of the absorption tower body 1 is sequentially installed with an air-distributing plate 11 , a demister 13 , a water distributor 14 and a packing support 15 from top to bottom, and the interior of the packing support 15 is filled with a packing layer 16 .

[0018] In the present embodiment, specifically, the interior of the gas equalizing plate 11 is provided with pores 12 in sequence from the center of the circle to the outside, and the aperture of the pores 12 increases in sequence from the center of the circle of the gas equalizing plate 11 to the outside. The gas equalizing plate 11 and the pores 12 enable the gas to pass through the packing layer 16 more evenly, thereby improving the gas treatment effect.

[0019] How it works

[0020] In the utility model, the solution for treating the gas is transported to the water distributor 14, and the water distributor 14 sprays the solution so that the solution and the gas react in the packing layer 16. The reacted gas passes through the demister 13 to intercept the liquid in the gas, and then passes through the air equalizing plate 11 and the air holes 12, and is discharged through the exhaust pipe 4 under the drive of the induced draft fan 2.

[0021] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A sodium dichloroisocyanurate production chlorination absorption tower, the sodium dichloroisocyanurate production chlorination absorption tower comprising an absorption tower body (1) and an induced draft fan (2), characterized in that: An air distribution plate (11), a demister (13), a water distributor (14) and a packing support (15) are sequentially installed inside the absorption tower body (1) from top to bottom. A water collecting box (5) is flange-connected to an air inlet at a lower portion of one side of the absorption tower body (1). A downpipe (51) is integrally provided at the lower portion of the water collecting box (5). A water valve (52) is flange-connected to the lower end of the downpipe (51). An air inlet pipe (53) is flange-connected to a side of the water collecting box (5) away from the absorption tower body (1).

2. The sodium dichloroisocyanurate production chlorination absorption tower according to claim 1, characterized in that: The air distribution plate (11) is provided with air holes (12) in sequence from the center of the circle to the outside.

3. The sodium dichloroisocyanurate production chlorination absorption tower according to claim 2, characterized in that: The diameters of the pores (12) increase from the center of the air distribution plate (11) outwards.

4. The sodium dichloroisocyanurate production chlorination absorption tower according to claim 1, characterized in that: The interior of the filler support (15) is filled with a filler layer (16).

5. The sodium dichloroisocyanurate production chlorination absorption tower according to claim 1, characterized in that: A connecting pipe (3) is flange-connected between the upper air outlet of the absorption tower body (1) and the air inlet of the induced draft fan (2).

6. The sodium dichloroisocyanurate production chlorination absorption tower according to claim 1, characterized in that: The air outlet flange of the induced draft fan (2) is connected to an exhaust pipe (4).

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