Rocking type slag-cooling machine

Abstract

The slag-cooling machine adopts stable swing balance shaft structure for supporting the hot slag conveyance heat-absorbing box on the machine frame, and adopts swing driving mechanism to make the boxbody reciprocally-swing in tilet angle of 10-30 deg. devialed from centre to make hot stag come into cooling box implement snakelike downslide and rolling along the heat-absorbing water pipe and heat-absorbing guide plate, so that it can greatly increase contacting area of hot slag and heat-absorbing medium and can make hot slag uniformly contact with cooling wall. Said ivnention is simple in structure, its wear abrasion is less and cost is low.

Description

technical field [0001] The invention belongs to a special device for continuously transporting high-temperature solid powder or mixed block high-temperature material. In particular, it is a special device adapted to complete high-efficiency heat exchange while conveying. Background technique [0002] Circulating fluidized beds and boilers have been widely used in metallurgy and power industries. The full combustion of fluidized pulverized coal has achieved excellent economic benefits. The ensuing problem is how to continuously discharge the slag formed after combustion with a temperature above 850°C, and fully recover the large amount of heat energy contained in the hot slag. The supporting device designed to adapt to the above treatment process is called a cold slag machine. At present, the slag cooling machine can be divided into two types: one is called the rotating drum type slag cooling machine, and the other is called the vibrating box type slag cooling machine. Th...

AI Technical Summary

Problems solved by technology

However, this type of structure has its shortcomings that are difficult to overcome. First, the slag introduced into the drum cannot fill the cooling cavity, and the direct heat absorption contact area is small.

The second is that it uses gravity and the friction force of the guide contact surface to damp the sliding movement, which causes a large friction loss on the contact surface, and the equipment fails quickly

The third is that there is almost no layer tumbling process after the hot slag enters the drum, and the thermal contact is uneven. The fourth is that the cooling water rotating interface technology is complex and the equipment cost is too high

The problem with the design of this type of slag cooling machine is that the box body must be set on an elastic frame, and the structure is relatively complicated. Although the device of the rotating water pipe interface is omitted and the transmission wear consumption is small, the high-temperature material is easy to form layers. flow, which greatly weakens the efficiency of heat exchange, and the noise is large, the damage caused by the large vibration amplitude of the mechanism is also large, and the production cost is high, which is still not an ideal design.

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