Formaldehyde evaporator for producing formaldehyde

Abstract

The invention belongs to the technical field of formaldehyde production, and particularly relates to a formaldehyde evaporator for producing formaldehyde. The device comprises a formaldehyde evaporator, a sealing tank opening is fixedly formed in the top of the formaldehyde evaporator, an absorption pipe is fixedly connected to the exterior of the formaldehyde evaporator, and a feeding opening is fixedly formed in the outer surface wall of the formaldehyde evaporator; the outer surface wall of the bottom of the formaldehyde evaporator is fixedly connected with a release pipe groove, the bottom of the formaldehyde evaporator is fixedly connected with a connecting pipe opening, the interior of the formaldehyde evaporator is fixedly connected with a formaldehyde absorber, and the interior of the formaldehyde absorber is fixedly connected with a bee absorbing opening. By arranging the formaldehyde evaporator capable of circularly absorbing, the concentration of formaldehyde evaporated by the formaldehyde evaporator is improved, and the concentration of a formaldehyde aqueous solution is ensured. According to the equipment, formaldehyde can be fully extracted, and formaldehyde residues and formaldehyde pollution are avoided; in addition, the equipment avoids formaldehyde leakage in the reproduction process, the safety coefficient of processing production is improved, and potential safety hazards are reduced.

Description

technical field [0001] The invention relates to the technical field of formaldehyde production, in particular to a formaldehyde evaporator for producing formaldehyde. Background technique [0002] Formaldehyde is a popular chemical product with a wide range of uses, simple production process and sufficient supply of raw materials. It is the backbone of methanol's downstream product tree. The world's annual output is about 25 million tons, and about 30% of methanol is used to produce formaldehyde. However, formaldehyde is an aqueous solution with a low concentration, which is not convenient for long-distance transportation from an economic point of view. The existing production process of formaldehyde often uses evaporation and collection. The traditional formaldehyde evaporator on the market is used to produce formaldehyde. However, the existing process In production, there are still certain disadvantages in the production of formaldehyde evaporators. [0003] There are th...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a formaldehyde evaporator for producing formaldehyde, which solves the problem that the concentration of formaldehyde in the produced formaldehyde aqueous solution is not high, resulting in low quality of formaldehyde products, which cannot meet the normal supply and demand of products, and at the same time The evaporators used in the existing formaldehyde evaporators have low evaporation efficiency, and the cost of producing formaldehyde is often high. At the same time, in the formaldehyde production process, it is easy to cause formaldehyde to escape and pollute the outside air. There are certain problems for production personnel. security risks

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