Quenching, temperature-reducing and self-controlling device for chamotte of energy-conserving rotating stove

Abstract

The invention relates to an energy-saving self-control device for sharply quenching and cooling rotary kiln clinkers, which pertains to the technical field of dry cement production and essentially solves the problem of the non-ideal effect of a grate cooler in cooling the clinkers in the existing rotary kiln. The self-control device of the invention is essentially characterized by comprising a spray gun, a compressed air source, a high pressure water pump, a motor, a water tank and a control circuit which consists of a singlechip controller, a programmable controller, a frequency converter and a detecting circuit; the singlechip controller consists of a singlechip and a peripheral interface circuit; the detecting circuit consists of temperature, pressure and water flow detecting circuits; a temperature sensor and the spray gun are installed at an entrance where the grate cooler is connected with a kiln head hood. A temperature controller is connected with the peripheral interface circuit of the singlechip, the frequency converter and a PLC expansion module; a pressure controller and a water flow controller are connected with the expansion module of the programmable controller; a pressure sensor and a water flow sensor are installed at the water outlet of the high pressure water pump. The energy-saving self-control device of the invention is essentially applied to sharply quenching and cooling the clinkers in the novel dry cement production equipment.

Description

technical field [0001] The invention belongs to the technical field of dry-process cement production, and in particular relates to an automatic control device for rapidly cooling and lowering the temperature of clinker in new-type dry-process cement production equipment. technical background [0002] At present, most of the domestic new dry-process rotary kiln cement production adopts the grate cooler to cool the clinker, but the cooling effect is not ideal. The temperature of the clinker leaving the grate cooler is generally above 150°C, and the high-temperature flue gas also seriously affects the electric dust collector. The safe operation of the clinker, the high temperature of the clinker also affects the transportation and grinding of the clinker. At present, in order to solve the problem of high clinker temperature, most manufacturers adopt the method of increasing the blowing of cooling air and directly spraying water at the outlet of the cooler. Although the problem ...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the domestic new dry-process rotary kiln cement production adopts the grate cooler to cool the clinker, but the cooling effect is not ideal. The temperature of the clinker leaving the grate cooler is generally still above 150°C, and the high-temperature flue gas also seriously affects the electric dust collector. The safe operation of the clinker, the high temperature of the clinker also affects the transportation and grinding of the clinker

At present, in order to solve the problem of high clinker temperature, most manufacturers adopt the method of increasing the blowing of cooling air and directly spraying water at the outlet of the cooler. Although the problem of temperature is solved to a certain extent, but too much air is blown in. The power consumption of the fan is increased, and on the other hand, it is difficult to increase the temperature of the secondary air, which is not good for the calcination of the kiln

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