Lime production system

Abstract

The invention relates to a lime production system. The lime production system comprises a kiln body and an ash discharging device, wherein the ash discharging device comprises a receiving hopper, a ash discharging machine, a first ash discharging hopper and a second ash discharging hopper which are sequentially connected to one another from top to bottom; the ash discharging device is connected with a blower; the blower is connected with a blower pipe; the first ash discharging hopper is conical, and the axis of the cone is parallel to the horizontal plane; the lower end of the first ash discharging hopper is a conical sharp end, and the upper end of the second ash discharging hopper is connected with a feeding valve; the lower end of the first ash discharging hopper is connected with a feeding valve on the second ash discharging hopper; the end, which is away from the blower, of the blower pipe is connected with a side surface of the first ash discharging hopper; the axis of the end,which is away from the blower, of the blower pipe is tangent to the outer side surface of the first ash discharging hopper; a coal ash discharging box is arranged on one side of the first ash discharging hopper; and the upper end of the coal ash discharging box is connected with a first coal ash discharging pipe and a second coal ash discharging pipe. By the lime production system, the amount of pulverized coal in produced lime can be reduced, and the quality of the lime is improved.

Description

technical field [0001] The invention relates to the technical field of equipment for generating quicklime from limestone, in particular to a lime production system. Background technique [0002] The current quicklime is usually produced by calcination of limestone. The traditional production process is to put limestone and fuel into the lime kiln, decompose after preheating to 850°C, complete the calcination when it reaches 1200°C, and finally cool it, and then discharge it out of the kiln. outside. Lime kiln is mainly composed of kiln body, feeding device, material distributing device, combustion device, ash unloading device, dust removal device and electric control device. Lime shaft kilns are widely used at present. Lime shaft kilns adopt the principle of countercurrent preheating and calcination. Bottom-up and reverse movement of materials, different thermal processes are performed in the above-mentioned areas. Combustion-supporting air enters at the bottom of the kil...

AI Technical Summary

Problems solved by technology

However, because the freshly produced lime is relatively brittle, it is easy to crack under vibration and become smaller lime particles, which leak from the small holes on the guide chute, resulting in waste.

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