A raw meal calcining device for cement production

Abstract

The invention relates to the technical field of cement production, and discloses a raw material calcining device for cement production, which includes a frame, a rotary kiln is arranged on the upper end of the frame, and a preheating cylinder is connected to the front end of the rotary kiln, and The rear end of the rotary kiln is connected with a cooling cylinder, the upper end of the cooling cylinder is provided with an air suction port, one end of the preheating cylinder is connected with a preheating box, and the side of one end of the preheating cylinder and the side of one end of the cooling cylinder A liquid return pipe is provided, a compression refrigerator is provided in the middle of the liquid return pipe, a delivery pipe is provided between one end and the other side of the preheating cylinder and the other end side of the cooling cylinder, and one end of the air suction port is connected to There is an exhaust pipe. The invention fully recycles and utilizes the high temperature generated when the raw material is calcined into high-temperature clinker, and uses the recovered high-temperature heat to fully preheat the raw material to improve its calcination efficiency, avoid waste of resources, and simultaneously realize heat efficient recycling.

Description

technical field [0001] The invention relates to the technical field of cement production, in particular to a raw material calcining device for cement production. Background technique [0002] Cement: powdery hydraulic inorganic gelling material. Add water and stir to form a slurry, which can be hardened in air or in water, and can firmly bond sand, stone and other materials together. It is an indispensable material in the construction industry. The production process is mainly based on limestone and clay. The raw material is made into raw meal by crushing, batching and grinding, and then fed into the cement kiln to calcined clinker, and then the clinker is added with an appropriate amount of gypsum (sometimes mixed with mixed materials or admixtures) and ground. The most important is the device for calcining raw materials in the cement production process. [0003] Most of the existing cement raw meal calcination devices need to preheat the raw meal through a preheater befo...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing cement raw meal calcination devices need to preheat the raw meal through a preheater before calcination, but most of the raw meal preheating effects are not perfect enough to fully preheat the raw meal, which is likely to cause waste of resources. Moreover, it affects the calcination effect. At the same time, the raw material becomes high-temperature clinker after calcination, which needs to be discharged after cooling. However, when the high-temperature clinker is cooled, the heat loss generated by it is relatively serious. The recovery of high-temperature heat generated during cooling is not perfect in the market. , can not be recycled reasonably, resulting in a waste of resources

Images