Method and equipment for calculating materials

Abstract

The invention provides a method and equipment for calculating materials. A preheating chamber, a calculating chamber and a cooling chamber of the equipment are in split structures; and the calculated materials are delivered by a bucket-type hoister among feeding equipment, the preheating chamber, the calculating chamber and the cooling chamber. The calculated materials are preheated, calculated and cooled in the split preheating chamber, calculating chamber and cooling chamber to obtain calculating products. High-temperature gas generated during cooling products in the cooling chamber is delivered to the preheating chamber by a gas pipeline for preheating the calculated materials and enters the calculating chamber to be used as combustion-supporting air after being preheated by a heat accumulator. The invention fully utilizes heat energy, reduces the consumption of fresh air and the emission of room temperature gas and is beneficial to environmental protection. Various units of the equipment are independent assemblies, can be separately produced and assembled on site and are beneficial to serially producing and calculating the equipment. The materials are delivered among various chambers by using the bucket-type hoister, so that the invention realizes split operations and improves the flexibility of operations.

Description

technical field [0001] The invention relates to a method and equipment for calcining materials, in particular to a split-type method and equipment for calcining materials by using high-temperature gas after cooling lime to preheat processed materials and using it as combustion-supporting air. Background technique [0002] Lime is an important building material, and also an important raw material in metallurgy and chemical industry. The prior art uses dolomite and limestone as raw materials, and adopts a vertical kiln with burning beams to calcinate lime. The disadvantage of this process is that the direction of the furnace gas flow in the shaft kiln is opposite to that of the stone material, that is, the stone material moves from top to bottom, and the furnace gas flows from bottom to top. Gas segregation phenomenon causes limestone to be heated unevenly and affects product quality. The applicant has disclosed a utility model patent with the patent number ZL200320111077.3 f...

AI Technical Summary

Problems solved by technology

The disadvantage of this process is that the direction of the furnace gas flow in the shaft kiln is opposite to that of the stone material, that is, the stone material moves from top to bottom, and the furnace gas flows from bottom to top. Gas segregation phenomenon causes uneven heating of limestone and affects product quality

However, the energy utilization rate of this patented technology is low, and the use of pipe chain conveyors to transport materials is costly

Images