Aldehyde reduction heat treating process and continuous energy-saving aldehyde reduction heat treating kiln
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of heat treatment kiln and aldehyde reduction, which is applied in the field of plate aldehyde reduction, which can solve the problems of long heating time of heating components, long equipment operation time, and long plate processing cycle, etc., to achieve short heat treatment cycle, reduce heat consumption, and shorten aldehyde removal the effect of time
Inactive Publication Date: 2020-07-24
成都市美康三杉木业有限公司
View PDF9 Cites 2 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
In the technical solution of this patent, the plates are discharged from the kiln body after heat treatment and cooling, and the residual air in the kiln body still retains heat, but it is not effectively utilized, resulting in waste
When the next batch of plates needs to be heat treated, the air needs to be heated to a specific temperature and then heat-preserved to achieve the effect of heat treatment. During this process, the difference between the temperature of the air flow in the kiln and the specific temperature is too large, which makes the heating time of the heating components too long. Long processing cycles for panels, resulting in long operating times and high energy consumption
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0033] A heat treatment process for reducing aldehydes, comprising the steps of:
[0034] S1 Put the wood-based panels into the aldehyde reduction heat treatment kiln for heat treatment; the heat treatment method adopts the multi-stage aldehyde reduction method of preheating-heating-constant temperature, the preheating temperature is 70°C, the preheating time is 2h, the constant temperature is 120°C, and the constant temperature time for 2h;
[0035] S2 Put the artificial board after heat treatment in S1 into the health preservation balance room; the health preservation time is 5 days;
[0036] In this embodiment, the wood-based board is a semi-finished board after the wood-based board is coated with the aldehyde-removing liquid after pressing or a semi-finished board after the wood-based board is veneered. In this embodiment, the wood-based board coated with the aldehyde-free liquid is selected. Semi-finished panels after pressing.
[0037] The water content of the wood-bas...
Embodiment 2
[0041] The difference between this embodiment and embodiment 1 is that the temperature and time of preheating-heating-constant temperature are different, and the time of health preservation is different.
[0042] In this embodiment, the preheating temperature is 50° C., the preheating time is 3 hours, the constant temperature is 110° C., the constant temperature time is 4 hours, and the health preservation time is 3 days.
Embodiment 3
[0044] The difference between this embodiment and embodiment 1 is that the temperature and time of preheating-heating-constant temperature are different, and the time of health preservation is different.
[0045] In this embodiment, the preheating temperature is 80° C., the preheating time is 2 hours, the constant temperature is 130° C., the constant temperature time is 1 hour, and the health preservation time is 7 days.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention relates to the technical field of aldehyde reduction of plates, and discloses an aldehyde reduction heat treating process which comprises the following steps: putting an artificial plateinto an aldehyde reduction heat treating kiln for heat treating; putting the artificial plate subjected to the heat treating into a health maintenance balance chamber for health maintenance, whereinthe heat treating mode adopts a preheating-heating-constant temperature multistage aldehyde reduction mode, the constant temperature is 110-130 DEG C, the constant temperature time is 1-4 hours, the preheating temperature is 50-80 DEG C, and the preheating time is 0.5-6 hours. The continuous energy-saving formaldehyde-reducing heat treating kiln comprises a preheating kiln section, a formaldehyde-reducing kiln section and a balance kiln section which are connected in sequence, a feeding port is formed in the preheating kiln section, and a discharging port is formed in the balance kiln section;the formaldehyde reduction kiln section is provided with a heat supply assembly, and an airflow conveying assembly is arranged between the balance kiln section and the preheating kiln section and used for conveying airflow of the balance kiln section to the preheating kiln section. By the adoption of the technology, the aldehyde reduction effect can be effectively achieved, meanwhile, the aldehyde reduction treating period is short, and the production efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of aldehyde reduction for plates, in particular to a heat treatment process for aldehyde reduction and a continuous energy-saving aldehyde reduction heat treatment kiln. Background technique [0002] The adhesive used in wood-based panels is mainly composed of urea-formaldehyde resin. When the environmental conditions such as temperature and humidity change, urea-formaldehyde resin will continuously release formaldehyde to the surrounding environment, and the release period can reach more than ten years, which is the main cause of formaldehyde pollution in indoor air. Therefore, it is particularly important to reduce the formaldehyde content in the board. [0003] The patent with publication number CN102041890A discloses a method for manufacturing low-formaldehyde emission composite flooring through heat treatment. In this patent, the composite floor is heated in a heat treatment box at a temperature of 60...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more