GLJ-n series drum cold slag machine

GTL drum-type cinder cooling machine is designed and developed to cater for the development trend of large-capacity fluidized bed boiler. The machine is composed of a shutter-type heat transfer drum, a slag inlet device, a slag outlet device, a rotating mechanism, a cooling water system, an electric control device, etc. It is used to cool down hot slag from fluidized beds and fluidized bed boilers. 

 

It boasts high heat transfer efficiency and a wide range of slag removal temperature (40℃-150℃). The cooling water discharge pipe is arranged outside the drum and the drum is safe, reliable and easy to maintain. The slag inlet pipe with a large diameter prevents any blockage, the slag inlet is tightly sealed and the wearing parts are easy to replace. Thanks to the frequency control, automatic tracking of slag output of the boiler is realized. The machine is also designed with cooling water over-temperature alarm, shutdown upon water break (and alarm), overpressure relief and other safety protection features. 

 

The specific model of the cold slag machine is: GTL-nxL left (or right). Where n is the output (th), L is the distance between the entrance and exit (mm), and the left indicates the left shape. The right indicates the right type.

According to the location of the drive motor (see Figure 1), the slag machine has a square type and a right type; looking at the outlet of the slag machine, the motor on the left is the left type and the right side is the right type.

The cooling medium is mainly water, and the water pressure is not more than 2.5MPa. It is most suitable to soften the water (the outlet temperature is allowed to be as high as 90 ℃). If general industrial water is used, the effluent temperature should be controlled to be less than 60 degrees. When the effluent temperature is high, regular descaling is required.

Cooling water volume: The cooling water volume W per ton of slag varies with the temperature difference between the inlet and outlet slag (T1-T2) and the temperature difference between the inlet and outlet water (t also -tt). It can be calculated according to the following formula: W = 0.24 (T1-T2) ÷ (te-tt), unit m3 water slag air-cooled pipe DN200 is usually connected to the entrance of the electrostatic precipitator, which can maintain the negative pressure inside the cylinder and prevent dust pollution. .

The boiler slag discharge pipe can be directly inserted into the slag funnel of the cold slag machine, and the gap is tightly plugged with high temperature resistant glass fiber or asbestos rope.

The length of the slag cooler is usually related to its output, slag temperature and furnace bottom space. When there is no special requirement, the length and other data are shown in the table below.