Method and device for extracting formaldehyde from plywood
A technology of plywood and formaldehyde, applied to other plywood/plywood appliances, wood processing appliances, manufacturing tools, etc., can solve the problems of the effective time limit of chemical agents, secondary pollution, etc., to eliminate secondary pollution and prevent unpredictable secondary pollution. The effect of secondary pollution
Inactive Publication Date: 2010-07-14
简进宏
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Problems solved by technology
However, it is known that using chemical agents as catalysts to remove formaldehyde has the disadvantage of producing unpredictable secondary pollution, and this passive method usually needs to be repeated many times within a period of time because the effective time of chemical agents is limited. implementation in order to ensure its efficacy
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[0017] In order to achieve the above-mentioned technical means of the present invention, an embodiment is listed and described as follows with accompanying drawings, so as to obtain a better understanding of the method, structure, characteristics and achieved effects of the present invention.
[0018] The invention relates to a method for removing formaldehyde from the glue in the plywood. It mainly heats the formaldehyde molecule contained in the glue in the inner layer of the plywood to accelerate its activity and then removes it.
[0019] Concrete embodiment of the present invention, coordinating device is described as follows: Please refer to figure 1 As shown, the present invention is mainly composed of a heating device 2 and a conveying device 3. By means of the conveying device 3, the plywood 1 is transported to the heating zone, and the heating device 2 is used to heat the plywood 1 to instantly increase the temperature of the surface layer 10 of the plywood 1, and Due...
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The invention discloses a method and a device for extracting formaldehyde from plywood. The method is mainly to extract the formaldehyde molecules from the plywood by using a high temperature to accelerate the formaldehyde molecules to move. The device mainly comprises a heating device and a conveying device. The plywood is conveyed to a heating region by using the conveying device, the plywood is heated by using the heating device to accelerate the movement of the formaldehyde molecules in the plywood, the formaldehyde molecules move upwards out of the surface layer of the plywood under the action of hot air flow and combine with the oxygen molecules in the high-temperature air around the heating device rapidly to form H2O molecules, and the H2O molecules diffuse in the air; therefore, the formaldehyde is effectively extracted from the plywood and unpredictable secondary environmental pollution is eliminated.
Description
technical field [0001] The invention belongs to the technical field of formaldehyde treatment in plywood, in particular to a formaldehyde extraction method and an extraction device in plywood. Background technique [0002] At present, formaldehyde (English: Formaldehyde, IUPAC name: Methanal, molecular formula: HCHO) is a flammable, colorless and pungent gas, which has an irritating effect on the skin and mucous membranes. The skin that has been exposed to formaldehyde may be allergic and serious. Or even lead to hepatitis, pneumonia and kidney damage. 40% formaldehyde solution, commonly known as "formalin", is used in the manufacture of synthetic resins, surfactants, plastics, rubber, paper, dyes, pharmaceuticals, photosensitive materials, explosives and other industries. It is often used in disinfection, fumigation and anti-corrosion processes. Formaldehyde is common in indoor air because formaldehyde resins are used in a variety of building materials, including plywood, ...
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IPC IPC(8): B27D5/00
Inventor 简进宏
Owner 简进宏