Clay bricks with low porosity are widely used in chemical industry, mainly due to their excellent chemical resistance, high temperature stability and low porosity. The following is its specific application and instructions in the chemical industry:

I. Application field

(1) Chemical reactor

Uses: Low porosity clay brick can be used as the lining of chemical reactors, which can effectively resist the corrosion of acidic or neutral chemicals.

Advantages: Its low porosity and high compactness structure can prevent the penetration of chemicals and prolong the service life of the equipment.

(2) Heat exchange equipment

Uses: In the heat exchange equipment of chemical industry, low porosity clay brick can be used for heat insulation and fire resistance in high temperature parts.

Advantages: Low thermal conductivity can effectively reduce heat loss and improve energy efficiency.

(3) Chemical kilns

Uses: Used for lining of chemical furnaces, such as cracking furnaces.

Advantages: It can withstand high temperature and chemical erosion, and has good thermal stability.

II. Instructions for use

(1) Construction preparation

Check the quality of the brick body: ensure that the brick body has no cracks, missing corners or other defects.

Clean up the construction surface: the construction surface should be clean and smooth, free of sundries and oil stains.

(2) Construction process

Masonry: Use special refractory mud for masonry to ensure the close combination between bricks.

Setting expansion joint: according to the temperature change of the construction site, reasonably set expansion joint to prevent structural damage caused by thermal expansion.

(3) the oven and use

Oven-drying: After the construction is completed, the temperature should be gradually raised according to the oven-drying curve, so as to avoid the damage of the brick body caused by the rapid temperature change.

Temperature control: During use, the temperature should be strictly controlled to avoid exceeding the refractoriness of the brick.

Regular inspection: check the use of brick regularly, and find and deal with possible damage in time.

III. Matters needing attention

(1) porosity selection

Select the appropriate porosity according to the specific working conditions. For example, in an acidic atmosphere, clay bricks with low porosity have stronger corrosion resistance.

(2) Environmental adaptability

Low porosity clay brick has strong tolerance to acidic or neutral chemicals, but additional protective measures may be needed in strong alkaline environment.

(3) Maintenance cost

Low porosity clay brick has a long service life and can reduce maintenance cost.

Reasonable selection and use of clay bricks with low porosity can effectively improve the operation efficiency and service life of chemical equipment and reduce the maintenance cost.