Only by changing the shape of the furnace body and some important structures of the box type electric furnace, can the layout of the heating elements be reset reasonably, so that the temperature control point is still a single heating area, and the position of the temperature measurement point is changed. The height of heating chamber decreases rapidly, the distribution of heating elements changes from 8 rows on both sides to 6 rows, the height decreases by 160mm, the arch shape of furnace top reduces from the original, the normal uniformity of furnace temperature can be ensured after the expansion of heating volume, the power of furnace bottom can be increased properly, and the effect of increasing the average temperature thermal performance of box type electric furnace is improved.
To increase the heating performance of box type electric furnace, we must first solve the problem of energy saving and emission reduction. After the technical transformation of standard box type electric furnace, we can effectively increase the original heating area of electric furnace, so that the applicability of electric furnace reaches the peak.
When charging in the box type electric furnace, it is necessary to use the method of cross diagonal charging. When it is difficult to close the door of the electric furnace, we need to find a way to overcome the difficulty. In the back wall of the box type electric furnace, we also need to carry out frequent inspection and maintenance, and replace the loss elements when necessary. At present, the production efficiency is relatively low, and the energy consumption is still very high. Technicians try their best to expand the effective heating length of the original box type electric furnace. It overcomes the problem that the effective heating length of box type electric furnace does not increase its installed capacity
The box type electric furnace structure is composed of furnace bottom plate, electric furnace body, electric furnace lining, heating element, furnace door, furnace door elevator structure and control operation system. The frame of furnace body is made of channel steel and angle steel by welding, the side plate of shell is made of steel plate by welding process, the welding place needs to be polished, and the bottom plate of furnace is made of heat-resistant steel, which is used for shelving workpieces, so as to prevent the problem of continuous short circuit caused by oxide skin of workpieces falling on heating elements.
The area of furnace bottom plate is large, and the existing furnace bottom plate is easy to deform and crack under high temperature, which affects the service life of the furnace. After scraping the iron putty and spraying the hot antirust paint, the painting project is carried out according to the color code provided by the user. All fiber structure lining is made by scientific and reasonable inlay method.