Heating device applicable to plate type filter box

Abstract

The invention relates to a heating device applicable to a plate type filter box. The heating device comprises a nozzle body, a fuel inlet device, a combustion supporting gas inlet device and an igniter, wherein the nozzle body is provided with an outlet in any one end in the length direction of the nozzle body; the nozzle body is provided with a secondary combustion supporting gas inlet, a primary combustion supporting gas inlet and a fuel inlet in sequence in the side wall in the length direction of the nozzle body; the fuel inlet device comprises a fuel inlet pipe; the fuel inlet pipe is connected with the fuel inlet; the combustion supporting gas inlet device comprises a primary combustion supporting gas inlet pipe and a secondary combustion supporting gas inlet pipe; the primary combustion supporting gas inlet pipe is connected with the primary combustion supporting gas inlet; the secondary combustion supporting gas inlet pipe is connected with the secondary combustion supporting gas inlet; the igniter is arranged on the side wall, opposite to the fuel inlet, of the nozzle body. According to the heating device, the front end of the primary combustion supporting gas inlet is provided with the secondary combustion supporting gas inlet; the flowing of combustion supporting gas drives high temperature smoke generated in the nozzle body to be cycled in a furnace; and therefore, the purpose of rapid and uniform preheating is realized, and the damage, caused by partial overhigh temperature, to a filter plate is avoided.

Description

technical field [0001] The invention relates to a heating device suitable for a plate filter box. Background technique [0002] As an economical and effective filtering device, the plate filter is widely used in the melting and casting workshop of aluminum processing to clean the aluminum water for casting. At present, the conventional preheating method for the box body and filter plate of the plate filter device is to install silicon carbide rods on the cover of the plate filter device, and preheat the box body and filter plate of the plate filter device by means of electric heating. It is characterized by simple production and convenient control, but the disadvantage is that the temperature rises slowly. [0003] In actual production, due to casting quality requirements, the filter plate of the plate filter device must be replaced after each casting. Since the casting interval of semi-continuous casting is only about 8 hours, and the plate filter device needs to drain the...

AI Technical Summary

Problems solved by technology

I will use a self-made flame gun to directly grill the box and filter plate of the plate filter device through an open flame. Since the temperature of the open fire will reach more than 1000°C, it will bring two hidden dangers. One is that the local temperature of the box is too high, which will affect the box. The service life of the lining; the second is that there is a risk of the filter plate being melted. Once the filter plate is melted, the filtering effect will not be achieved, and the quality of aluminum water passing through the filter plate cannot be guaranteed.

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