Wet rotary kiln belongs to the class of building materials and equipment, which is widely used in metallurgy, chemical industry, building refractory materials, environmental protection and other industries. The rotary kiln is composed of a barrel body, a supporting device, a supporting device with a stop wheel, a driving device, a movable kiln head, a sealing device at the end of the kiln, a coal injection pipe device and other components. The kiln body of the wet rotary kiln is inclined to the level, and the whole kiln body is supported by a supporting wheel device, and there is a stop wheel device to control the movement of the kiln body up and down. In addition to the main drive system, an auxiliary drive device is also set up to make the kiln body rotate when the main power source is broken and prevent the bending and deformation of the kiln body. The sealing device of the kiln head and the kiln tail adopts advanced technology. Ensure the reliability of sealing.

Because the raw material is made of mud, it has strong adaptability to heterogeneous raw materials, uniform raw material composition, stable process, high quality of fired clinker, high clinker strength grade, less dust in the grinding process, less fly ash at the kiln tail. However, the evaporation of 30% to 40% of the slurry water in wet production requires greater heat consumption, and the energy consumption accounts for 1/2 to 1/3 of the cement cost, which is higher than that of vertical kiln and dry rotary kiln. Due to high heat consumption, large energy consumption, and large water consumption during production, water resources consumption, China has listed wet cement production as limited elimination kiln.

Wet rotary kiln In order to calcinate good cement clinker and reduce coal consumption, the wet rotary kiln should have the following basic functions: 

1. It can spray coal powder into the kiln in a dispersed form and at a certain speed, and try to strengthen the mixing of coal and wind. 

2. Can strengthen the gas disturbance, increase the gas diffusion speed, to blow the volatile gas film around the coal particles, expand the contact between fixed carbon and the secondary wind. 

3. Can add an appropriate amount of fresh air to solve the problem of hypoxia in the central area of the flame. 

4. The primary air consumption is low, improve the utilization rate of clinker recovery heat. 

5. Can quickly adapt to incoming material changes, the shape and length of the flame, the position of the flame should be easy to control and adjust. 

6. It has strong adaptability to combustion quality. 

7. The ambient temperature of the wet rotary kiln is very high, the rotary kiln nozzle should have the characteristics of high temperature resistance, and effective high temperature resistance measures should be used to prevent the nozzle from being burned. 

8. Wet rotary kiln coal pipeline and nozzle coal injection part should be.