Method for reducing burning cost of landscape brick
The firing of landscape bricks requires a variety of costs, including fuel costs, electricity costs, and labor costs. If the construction is irrational and improper operation will cause fuel waste, it will increase the sintering cost of the product. We want to reduce costs on the basis of quality assurance during the firing process. What measures can we take to achieve this?
1. Kiln body insulation
The quality of the kiln body is the key to reducing energy consumption. According to statistics, about 30% -40% of the heat of the kiln is absorbed and dissipated by the kiln body every year. With the increasing price of fuel, it is particularly important to improve the insulation performance of the kiln body. The kiln body can be divided into kiln wall and kiln top. The external wall is in direct contact with the atmosphere. Generally, 150px-l0 thick insulation cotton needs to be added to the wall to reduce heat loss. Kiln roof heat dissipation is the main way of heat loss, so the insulation of the kiln roof is more important. In addition to using insulation cotton in the extra layer of the vault brick, it is also necessary to fill the upper part with insulation materials such as perlite to enhance the insulation performance and reduce heat loss.
2. Kiln car insulation
Kiln car heat dissipation is also an important way for heat loss in the kiln. Not only the heat loss is serious, but the bearings are often burned out. The heat dissipation of the kiln car is mainly due to the poor thermal insulation performance of the car body masonry materials and the poor sealing performance of the contact surfaces between the two cars. The joint must be sealed with two stages and embedded with insulation cotton to effectively reduce heat transfer to the bottom of the car.
3. Kiln car sand seal
Poor sand seals in the tunnel kiln not only cause heat loss, but also cause the air flow in the kiln to be turbulent, which is the main cause of green bricks. Because the cold air passing through the sand seal directly acts on the bricks on both sides of the kiln car, the temperature of the kiln car itself is lower than the middle due to the heat absorption of the kiln wall, and the temperature will be lower with the penetration of cold air. Therefore, air leakage from the sand seal must cause green bricks to appear on both sides of the kiln.