Air preheater is a kind of heat exchange equipment. There is a large heat difference between the two media to recover heat. Generally, high temperature flue gas and air are used for heat exchange as combustion air to improve the thermal efficiency of the boiler. Usually, the air preheater is one of the parts of the waste heat boiler. It is generally arranged on the heating surface of the tail of the flue gas, which can solve the problem of low temperature and corrosion of the air inlet, and is widely used in large-scale waste incineration plants...

At present, domestic metallurgical enterprises have basically realized mechanized production, and walking beam heating furnace is the most widely used mechanical equipment. Next, Guangzhou Youzao will take you to understand what is a walking beam heating furnace and what are the characteristics of a walking beam heating furnace...

The coke oven gas flow measurement can be measured by the V-cone flowmeter. The V-cone flowmeter is a gas flow measuring instrument with the characteristics of high temperature and high pressure resistance. In addition, in terms of measurement accuracy, it is higher than other flowmeters. It has been unanimously recognized by users in the field of gas flow measurement...

Cleaning: 1. Before heat treatment, workpieces and fixtures should be cleaned of foreign objects such as oil, residual salt, paint, etc. 2. The fixtures used in the vacuum furnace should be degassed and purified in advance under the vacuum degree not lower than that required by the workpiece before loading the furnace: 1. Workpieces that are easily deformed during heat treatment should be heated on a special fixture 2. The workpiece should be placed in the effective heating zone

The muffle furnace is a necessary and commonly used electric heating equipment in the laboratories and heat treatment workshops of general enterprises, colleges and universities. Now most of the box-type high temperature muffle furnaces in the laboratory are refractory brick muffle furnaces from a few years ago or even more than ten years ago. Because the refractory bricks are used as the insulation layer, the insulation effect is not good, and the sheet metal shell is only wrapped with a layer of iron, and the shell is very hot, sometimes reaching more than 100 ℃. There is a certain danger...

Because the requirements in the roller kiln are relatively high, the temperature inside must be uniform, and the horizontal temperature difference is strictly controlled, so that the product shrinks or softens within the error range at the higher temperature inside the roller kiln, reducing the deformation or defect of the product...