Fiber-based carrier, waste gas treatment module and preparation method

Abstract

The invention provides a fiber-based carrier, a waste gas treatment module and a preparation method. Planar refractory fiber paper at a first path of feeding unit sequentially passes through a first path of feeding tensioning unit and a first path of feeding guide unit to enter a sizing unit for sizing; planar refractory fiber paper at the second path of feeding unit enters the corrugated pressingunit through the second path of feeding tensioning unit and the second path of feeding guide unit in sequence, is pressed into corrugated refractory fiber paper by the corrugated pressing unit and then enters the compounding unit to be gathered with the sized planar refractory fiber paper; the two materials are pressed for adhesion and lamination to form a carrier module; then the carrier modulecomposite base material passes through the guide unit and then enters the winding unit to be collected into a roll shape for later use; then the collected carrier module composite base material is processed into a cylinder, a fan-shaped body or a cubic module; and strengthening treatment is carried out on the processed and molded carrier module composite base material, and drying and roasting arecarried out to obtain the carrier module. Industrialized batch production is achieved, and the service life of the module is prolonged.

Description

technical field [0001] The invention relates to the technical field of environmental materials for air pollution control, in particular to a fiber-based carrier for preparing a catalytic module, an adsorption module or an adsorption catalytic module, an exhaust gas treatment module and a preparation method. Background technique [0002] Integral adsorption and catalytic materials use the integral carrier as the base material, and the adsorption material and catalytic material are coated or attached to the surface of the carrier by means of coating or attachment, and are widely used in the field of air pollution control, such as NOx, VOCs, O 3 Elimination and purification of pollutants. The integral carrier has regular channels for gas circulation, and the walls of the pores can be coated with adsorption and catalytic materials to further increase the contact area and reduce resistance. [0003] At present, there are three main types of monolithic carriers, namely ceramic-ba...

AI Technical Summary

Problems solved by technology

There are the following deficiencies: 1) A large amount of wood pulp and organic fibers are introduced into the papermaking slurry, which will be oxidized and decomposed in the subsequent sintering process, and the fiber paper will lose its skeleton, which will cause loose structure, reduced strength, and molecular sieve shedding; 2) in the scheme After finishing methods such as acupuncture or fluffing, the fluffed paper is prepared to increase the specific surface area, but the channel resistance increases, and the molecular sieve layer is easy to fall off, etc.; 3) It is difficult to control the molecular sieve filling by adding molecular sieve adsorbents in advance during the papermaking process. Quantity, and limit the scope of material application;

However, when pulp is introduced in the preparation, pores will be formed after high-temperature sintering, resulting in loose structure and reduced molecular sieve strength.

Molecular sieve is added in the ultra-paper process, and the molecular sieve is easy to lose during the papermaking process, and the distribution uniformity and content are difficult to control

In addition, if the planar and corrugated molecular sieve paperboards are alternately stacked or rolled into a honeycomb structure, the bonding strength between the layers is low, and it is easy to form delamination, dislocation, loose structure, etc., which will affect the performance.

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