Novel formaldehyde spray type absorption tower
A new type of formaldehyde and formaldehyde absorption technology, applied in the separation of dispersed particles, chemical instruments and methods, separation methods, etc., can solve the problems of substandard formaldehyde production, increased power consumption, and reduced absorption efficiency, so as to increase the absorption effect and reduce the product. The effect of low cost per unit consumption and renovation
Pending Publication Date: 2017-02-22
ANHUI JINGHE IND
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Problems solved by technology
Generally speaking, the absorption tower used in the production of formaldehyde adopts a three-stage packed tower structure and uses the absorption liquid circulation method to absorb formaldehyde gas. Generally speaking, the spray density of the packed tower should be controlled around 40m3 / m2 h. If it is too small or too large, it will lead to a decrease in absorption efficiency and increase unnecessary power consumption, resulting in substandard formaldehyde production and increased power consumption.
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[0019] Such as figure 1 As shown, a novel formaldehyde spray absorption tower comprises a tank body 1, a formaldehyde absorption liquid input port 2 is provided at the top of the tank body 1, and a formaldehyde absorption liquid recovery port 3 is provided at the bottom end of the tank body 1. The above-mentioned input port 2 and recovery port 3 are communicated through a circulation pipe 5, and a formaldehyde absorption liquid injection port 5a is also provided on the circulation pipe 5, and a pump body 4 is provided on the circulation pipe 5.
[0020] The formaldehyde absorption liquid enters the circulation pipeline 5 from the formaldehyde absorption liquid injection port 5a, enters the tank body 1 from the input port 2, and then flows back to the circulation pipeline 5 from the recovery port 3 at the bottom of the tank body 1, and under the action of the pump body 4 , and then enter the tank 1 from the input port 2, thus forming a circulation loop. A finished formaldehyde...
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The invention provides a novel formaldehyde spray type absorption tower comprising a tank body (1); the top end of the tank body (1) is provided with a formaldehyde absorption liquid input port (2), the bottom end of the tank body (1) is provided with a formaldehyde absorption liquid recovery port (3), the input port (2) and the recovery port (3) communicates with each other through a circulating pipeline (5), and the circulating pipeline (5) is provided with a pump body (4); one side of the tank body (1) is provided with a formaldehyde process gas inlet (6); the tank body (1) is internally provided with a group of fillers (9) at intervals. The absorption tower is characterized in that the other side of the tank body (1) is also provided with a group of formaldehyde absorption liquid inlets (7), and the formaldehyde absorption liquid inlets (7) communicate with the circulating pipeline (5) through pipelines. The absorption tower has simple structure, allows conventional equipment to be convenient to transform, and can effectively improve the yield and reduce consumption.
Description
[0001] Technical field: [0002] The invention relates to a formaldehyde production equipment, in particular to a novel formaldehyde spray absorption tower. [0003] Background technique: [0004] At present, the formaldehyde production process is relatively mature. The key process of formaldehyde production is oxidation and absorption. If these two processes are well controlled, the entire production process will be stable. [0005] In general, pressure is an important factor affecting gas-liquid absorption. However, in the production and absorption of formaldehyde, since formaldehyde has a high solubility in water, as long as the absorption temperature is not high, the absorption can be completed under normal pressure, so no high pressure is required. Formaldehyde is easily soluble in water. In actual production, the formaldehyde absorption tower uses water to absorb formaldehyde to generate gas, and the absorption effect of the absorption tower directly affects the content ...
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Login to View More IPC IPC(8): B01D53/18B01D53/14
CPCB01D53/1487B01D53/18
Inventor 李正华王健李金良
Owner ANHUI JINGHE IND