Fireproof device of ring cooling machine receiving hopper

Abstract

The invention discloses a fireproof device of a ring cooling machine receiving hopper. The fireproof device is formed by laying prefabricated abrasive brick layers and pouring material layers, wherein the prefabricated abrasive brick layers are formed by connection of a plurality of prefabricated abrasive bricks, the pouring material layers are formed by pouring a pouring material and have a certain thickness, and the prefabricated abrasive brick layers and the pouring material layers are alternately laid in layers. The fireproof device can effectively shorten baking time before use to be within 2 days, so as to achieve consistence with the heating-up time of a rotary kiln; and the strength is higher, the scouring resistant performance is stronger, the structure stability is higher, and the service life is effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of annular cooler equipment, in particular to a refractory device for a receiving hopper of an annular cooler. Background technique [0002] With the rapid development of my country's chain-back-global process to produce oxidized pellets, this process has gradually been recognized by the industry. The ring cooler is an important equipment for cooling pellets. The firm and safe internal mechanical structure is the key to ensure the normal operation of the ring cooler. The refractory device of the ring cooler is an important factor affecting the mechanical structure of the ring cooler. The first and second cooling sections of the chiller have the characteristics of high pellet temperature and fast gas flow rate. The refractory device masonry in these two sections is required to have high strength and erosion resistance. In the past, the masonry of the refractory device of the ring cooler was mainly made of he...

AI Technical Summary

Problems solved by technology

In the past, the masonry of the refractory device of the ring cooler was mainly made of heavy pouring materials in one-piece pouring. The disadvantage of this form is that the refractory device of the one-piece pouring contains a large amount of flowing water and crystal water inside, and it needs to be baked according to the drying method before use. The furnace curve is baked at low temperature for 4-5 days, so that the moisture inside the device can be fully lost, so that the refractory device can reach a certain strength, and the baking time is longer; in addition, the high-temperature roasted balls in the rotary kiln enter the process of the ring cooler Among them, the refractory device around the hopper of the ring cooler including the air-cooled wall is severely scoured. The service life of the refractory device has become an important link that limits the overall maintenance cycle of the production line. The entire production line has to be shut down for maintenance. From the heating and cooling process and the maintenance of the refractory device, the maintenance time is at least 72 hours, which seriously affects the smooth progress of production and greatly increases the production cost