What are the types of smoke exhaust on the side of the kiln?What s the difference?

The smoke exhaust mode of the kiln is divided into upper smoke exhaust, lower smoke exhaust and side smoke exhaust forms, the smoke exhaust port of the upper smoke exhaust furnace is located at the top of the kiln, the smoke exhaust port of the lower smoke exhaust furnace is arranged at the bottom of the kiln, and the smoke exhaust port of the side smoke exhaust furnace is located on both sides of the kiln wall of the kiln. Some of the power of smoke exhaust is to smoke with a smoke exhaust fan, and some are to use the suction force of the chimney to pull the smoke out.

The side exhaust is divided into centralized smoke exhaust and decentralized smoke exhaust, as well as two combined smoke exhaust methods. Centralized smoke exhaust is to concentrate the flue gas at the kiln head and discharge it through the main flue, which has the advantage of convenient construction, and the disadvantage is that the exhaust gas temperature is high and it is difficult to controlDispersed smoke exhaust is to set up smoke exhaust outlets in several sections at the beginning of the second section of the kiln head (generally), and finally summarize to the total flue discharge, the advantage is that it is easy to adjust the pre-tropical temperature, but the construction is relatively complex and the cost is high.

Kiln grate smoke exhaust includes kiln top, kiln bottom, and side smoke. At present, most of the continuous kilns use the kiln top and kiln bottom decentralized smoke exhaust. Smoke exhaust methods are divided into centralized smoke exhaust and decentralized smoke exhaust. The difference is that the decentralised smoke extraction facilitates the control of temperature and pressure in the kiln.

Summary. Comparison table of kiln smoke exhaust pipe size and exhaust air volume: air volume = wind speed Cross-sectional area of air duct.

Comparison table of kiln smoke exhaust pipe size and exhaust air volume: air volume = wind speed Cross-sectional area of air duct.

Precautions for the installation of kiln grate smoke exhaust pipes: 1The specifications, installation location, elevation and direction of the smoke exhaust pipe should meet the design requirements.

The installation of on-site air ducts shall not reduce the effective cross-section of the interface. 2.The connection of the trachea interface should be tight and firm, and the thickness of the gasket should not be less than 3mm, and it should not protrude from the inside of the tube and outside the flangeThe air duct flange gasket should be a non-combustible material, and the thin steel plate flange air duct should be bolted.

3.The installation of air duct hangers and brackets shall be carried out in accordance with the relevant provisions of the national standard "Code for Acceptance of Construction Quality of Ventilation and Air Conditioning Projects". 4.

The connection between the air duct and the brick-concrete air duct should be inserted in the direction of the air flow, and sealing measures should be taken.

The inverted flame kiln structure is composed of three main parts, the kiln body, the combustion equipment and ventilation equipment, the kiln roof and the kiln door, and the place where the material is calcined is inside the kiln body. The kiln structure of the inverted flame kiln has two socks, garden-shaped and rectangular, each with its own advantages and disadvantages. For example, the temperature of the garden kiln is more uniform than that of the rectangular kiln, and the garden kiln has less kiln wall side area and masonry brick volume than the rectangular kiln at the same volume, and the heat reception and accumulated heat of the outward scattered rock are smaller, and the rectangular kiln can have a larger volume when the width is constant.

The combustion equipment consists of a combustion chamber (fire box), a fire wall and a flamevent. The combustion chamber is the place where the fuel is burned, and its size can be calculated and determined according to the maximum fuel consumption per hour. The function of the retaining wall is to make the flame have a certain direction and flow rate to be reasonably sent into the kiln to prevent a part of the coal ash from entering the room and contaminating the kaolin.

Its height seriously affects the temperature difference between the upper and lower parts of the kiln. The rectangular cross-sectional space ratio between the flamethrower retaining wall and the kiln wall above the firebox, the large cross-sectional area of the flamethrower, will affect the flame ejection speed, which is generally 1 4-1 5 of the horizontal plane of the furnace grid.

The ventilation equipment consists of a fire suction hole at the bottom of the kiln, a branch flue, a main flue and a chimney. The main function of jujube is to make the flame or hot smoke evenly distributed in the kiln area and flow downward, and the hot smoke is discharged.

You can also search for "inverted flame kiln", which contains detailed ** and text description.