Alcohol removal device of formaldehyde absorption tower

Abstract

The utility model discloses a formaldehyde absorption tower alcohol removal device, and relates to the field of formaldehyde absorption tower alcohol removal. The formaldehyde absorption tower alcohol removal device comprises an alcohol removal unit and an formaldehyde removal tower arranged on the side face of the alcohol removal unit, the alcohol removal unit comprises an alcohol removal tank and a alcohol removal assembly, the alcohol removal assembly is arranged in the alcohol removal tank and used for treating alcohol substances in formaldehyde gas step by step, the alcohol removal assembly comprises a spiral pipe and an adsorption cotton layer, and the spiral pipe is arranged in the adsorption cotton layer. The spiral pipe is arranged at the bottom of the alcohol removal tank body, and the multiple adsorption cotton layers are arranged and used for adsorbing alcohol substances in formaldehyde gas. According to the alcohol removal device of the formaldehyde absorption tower, the alcohol removal assembly is arranged, so that alcohol substances in formaldehyde gas can be subjected to multi-layer step-by-step treatment, the removal and adsorption efficiency of the alcohol substances in the formaldehyde gas is further greatly improved, the removal effect of the alcohol substances is enhanced, the content of the alcohol substances in the formaldehyde gas is further reduced, and the formaldehyde absorption tower is more environment-friendly. Furthermore, the absorption efficiency of formaldehyde is improved.

Description

Technical Field

[0001] This utility model relates to the field of formaldehyde absorption tower alcohol removal technology, specifically a formaldehyde absorption tower alcohol removal device. Background Technology

[0002] Formaldehyde absorption towers with alcohol removal devices are used to remove alcohols from formaldehyde gas. This reduces the concentration of alcohols in the gas as formaldehyde enters the device, as the presence of alcohols can affect the absorption efficiency of the absorbent. By removing alcohols, the absorbent can focus more effectively on absorbing formaldehyde, thus improving absorption efficiency.

[0003] Traditional formaldehyde absorption towers for alcohol removal also include a de-alcoholization tower. The waste gas is passed through the de-alcoholization tower to reduce the concentration of alcohols in the gas before formaldehyde absorption. However, some existing de-alcoholization towers only adsorb alcohols through spraying, resulting in low alcohol removal efficiency and poor alcohol removal effect. This means that the alcohol content in the formaldehyde gas entering the formaldehyde removal tower is still relatively high, reducing the formaldehyde absorption efficiency and increasing the investment cost. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a formaldehyde absorption tower alcohol removal device, which solves the problem that some alcohol removal towers only adsorb alcohols through spraying, resulting in low alcohol removal efficiency and poor alcohol removal effect, and the formaldehyde gas entering the formaldehyde removal tower still has a high alcohol content.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A formaldehyde absorption tower for alcohol removal includes an alcohol removal unit and a formaldehyde removal tower disposed on the side of the alcohol removal unit. Waste gas passes through the alcohol removal unit for alcohol removal and then enters the formaldehyde removal tower for formaldehyde absorption. The alcohol removal unit includes:

[0006] Alcohol removal tank;

[0007] A de-alcoholization component, which is installed inside the alcohol removal tank, is used to process alcohols in formaldehyde gas in stages.

[0008] The dealcoholization assembly includes:

[0009] A spiral tube is installed at the bottom of the alcohol removal tank;

[0010] An adsorption cotton layer, wherein the adsorption cotton layer is configured in multiple layers, is used to adsorb alcohols in formaldehyde gas.

[0011] Preferably, the dealcoholization assembly further includes:

[0012] A spray system is positioned above the uppermost absorbent cotton layer.

[0013] A filter cotton layer is positioned above the spray system.

[0014] Preferably, the inner side of the spiral tube has holes for generating a spray to adsorb alcohols.

[0015] Preferably, an air inlet is provided on the lower side of the alcohol removal tank.

[0016] Preferably, the top of the alcohol removal tank is provided with an air outlet, which is connected to the formaldehyde removal tower via a connecting pipe.

[0017] Preferably, the side of the alcohol removal tank is provided with a first liquid inlet and a second liquid inlet, the first liquid inlet being connected to the spray system and the second liquid inlet being connected to the spiral tube.

[0018] Preferably, a drain pipe is provided at the bottom of the alcohol removal tank.

[0019] This utility model discloses a formaldehyde absorption tower for removing alcohol, which has the following beneficial effects:

[0020] This formaldehyde absorption tower alcohol removal device is equipped with a spiral tube, multiple layers of adsorption cotton, and a filter cotton layer. Formaldehyde gas containing alcohols enters the alcohol removal tank from the bottom. It first undergoes spray adsorption through the spiral tube to enhance the contact and reaction efficiency between the liquid and gas. Then, it passes through multiple layers of adsorption cotton for alcohol adsorption, increasing the contact area between the absorbent and the waste gas and improving the alcohol removal efficiency. Next, it undergoes spray adsorption through a spray system. Finally, the gas is filtered and dried through the filter cotton layer to reduce the water vapor content. Through this multi-stage treatment, the removal and adsorption efficiency of alcohols in formaldehyde gas is greatly improved, enhancing the removal effect and thus reducing the alcohol content in formaldehyde gas, thereby increasing the formaldehyde absorption efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic cross-sectional view of the alcohol removal unit of this utility model;

[0024] Figure 3 This is a schematic diagram of the alcohol removal tank structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the de-alcoholization component of this utility model.

[0026] In the diagram: 1. Alcohol removal unit; 11. Alcohol removal tank; 111. Air inlet; 112. Air outlet; 113. First liquid inlet; 114. Second liquid inlet; 115. Drain pipe; 12. Alcohol removal assembly; 121. Spiral tube; 122. Adsorption cotton layer; 123. Spray system; 124. Filter cotton layer; 2. Formaldehyde removal tower. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] This utility model discloses a formaldehyde absorption tower for removing alcohol.

[0029] Example 1

[0030] According to the appendix Figure 1-4 As shown, it includes an alcohol removal unit 1 and a formaldehyde removal tower 2 installed on the side of the alcohol removal unit 1. The waste gas passes through the alcohol removal unit 1 to remove alcohol and then enters the formaldehyde removal tower 2 for formaldehyde absorption. The alcohol removal unit 1 includes:

[0031] Alcohol removal tank 11;

[0032] Alcohol removal component 12 is installed inside alcohol removal tank 11 and is used to process alcohols in formaldehyde gas in stages.

[0033] De-alcoholization assembly 12 includes:

[0034] Spiral tube 121 is installed at the bottom of alcohol removal tank 11;

[0035] The adsorption cotton layer 122 is configured as a multi-layered layer, which is used to adsorb alcohols in formaldehyde gas.

[0036] Furthermore, the dealcoholization assembly 12 also includes:

[0037] The spray system 123 is located above the uppermost absorbent cotton layer 122. The spray system 123 includes a main water pipe and a spray pipe. The bottom end of the spray pipe is provided with a spray hole for spraying the absorbent liquid.

[0038] The filter cotton layer 124 is positioned above the spray system 123.

[0039] Furthermore, the inner side of the spiral tube 121 is provided with holes for generating a spray to adsorb alcohols. Formaldehyde gas containing alcohols enters the alcohol removal tank 11 from the lower end. It is first adsorbed by the spray generated by the spiral tube 121 to enhance the contact and reaction efficiency between the liquid and the gas. Then, it is adsorbed by multiple layers of adsorption cotton 122 to increase the contact area between the absorbent and the waste gas and improve the alcohol removal efficiency. Then, it is adsorbed by the spray system 123. Finally, the gas is filtered and dried by the filter cotton layer 124 to reduce the water vapor content in the formaldehyde gas. Through multi-stage treatment, the removal and adsorption efficiency of alcohols in formaldehyde gas can be greatly improved, the removal effect of alcohols is enhanced, and the content of alcohols in formaldehyde gas is reduced, thereby improving the absorption efficiency of formaldehyde.

[0040] Example 2

[0041] According to the appendix Figure 1-4 As shown, it includes an alcohol removal unit 1 and a formaldehyde removal tower 2 installed on the side of the alcohol removal unit 1. The waste gas passes through the alcohol removal unit 1 to remove alcohol and then enters the formaldehyde removal tower 2 for formaldehyde absorption. The alcohol removal unit 1 includes:

[0042] Alcohol removal tank 11;

[0043] Alcohol removal component 12 is installed inside alcohol removal tank 11 and is used to process alcohols in formaldehyde gas in stages.

[0044] De-alcoholization assembly 12 includes:

[0045] Spiral tube 121 is installed at the bottom of alcohol removal tank 11;

[0046] The adsorption cotton layer 122 is configured as a multi-layered layer, which is used to adsorb alcohols in formaldehyde gas.

[0047] Furthermore, an air inlet 111 is provided on the lower side of the alcohol removal tank 11.

[0048] Furthermore, the top of the alcohol removal tank 11 is provided with an outlet 112, which is connected to the formaldehyde removal tower 2 via a connecting pipe.

[0049] Furthermore, the side of the alcohol removal tank 11 is provided with a first liquid inlet 113 and a second liquid inlet 114. The first liquid inlet 113 is connected to the spray system 123, and the second liquid inlet 114 is connected to the spiral tube 121.

[0050] Furthermore, a drain pipe 115 is provided at the bottom of the alcohol removal tank 11.

[0051] Working principle: First, the first liquid inlet 113 and the second liquid inlet 114 are connected to the external adsorption liquid storage tank. The adsorption liquid is brought into the alcohol removal tank 11 by the pump body, causing the spray system 123 and the spiral tube 121 to generate spray. Then, formaldehyde gas enters the alcohol removal tank 11 from the air inlet 111 and is adsorbed by the spray generated by the spiral tube 121. Then, it is adsorbed by the alcohol by the multi-layer adsorption cotton layer 122. During the gas rise, it is sprayed and adsorbed by the spray system 123. Then, the gas is filtered and dried by the filter cotton layer 124 and discharged through the air outlet 112. The water generated by the spray system 123 and the spiral tube 121 is discharged through the drain pipe 115.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A methanol removal device for a formaldehyde absorption tower, comprising a methanol removal unit (1) and a formaldehyde removal tower (2) arranged on the side of the methanol removal unit (1), formaldehyde entering the formaldehyde removal tower (2) for formaldehyde absorption after being de-alcoholized by the methanol removal unit (1), characterized in that, The alcohol removal unit (1) comprises: an alcohol removal tank (11); an alcohol removal assembly (12) arranged in the alcohol removal tank (11) and used for gradually processing alcohol substances in formaldehyde gas; the alcohol removal assembly (12) comprises: a spiral pipe (121) arranged at the bottom of the alcohol removal tank (11); a plurality of adsorbing cotton layers (122) arranged for adsorbing alcohol substances in formaldehyde gas.

2. The alcohol removal device of the formaldehyde absorption tower according to claim 1, characterized in that, the alcohol removal assembly (12) further comprises: a spraying system (123) arranged above the uppermost adsorbing cotton layer (122); a filtering cotton layer (124) arranged above the spraying system (123).

3. The alcohol removal device of the formaldehyde absorption tower according to claim 2, characterized in that, The inner side of the spiral pipe (121) is provided with holes for generating spray to adsorb alcohol substances.

4. The alcohol removal device of the formaldehyde absorption tower according to claim 2, characterized in that, The lower end side of the alcohol removal tank (11) is provided with an air inlet pipe (111).

5. The alcohol removal device of the formaldehyde absorption tower according to claim 2, characterized in that, The top of the alcohol removal tank (11) is provided with an air outlet pipe (112) connected to the formaldehyde removal tower (2) through a connecting pipe.

6. The alcohol removal device of the formaldehyde absorption tower according to claim 2, characterized in that, The side of the alcohol removal tank (11) is provided with a first liquid inlet (113) connected to the spraying system (123) and a second liquid inlet (114) connected to the spiral pipe (121).

7. The alcohol removal device of the formaldehyde absorption tower according to claim 1, characterized in that, The bottom of the alcohol removal tank (11) is provided with a liquid outlet pipe (115).

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