Energy-saving type heat treatment heating furnace for grinding balls

Abstract

The invention discloses an energy-saving type heat treatment heating furnace for grinding balls. The energy-saving type heat treatment heating furnace is characterized by comprising a furnace body, a furnace lining, a suspension rod, a heater and a furnace frame, wherein the suspension rod is mounted on the top of the inner wall of the furnace body, the furnace lining is mounted on the inner wall of the furnace body, the heater is installed inside the furnace lining, and the furnace frame is placed in the furnace body. The energy-saving type heat treatment heating furnace has the advantages that strip-shaped silicic acid aluminum heat preservation cotton is adopted for the furnace lining, so that the furnace lining is regular in size and has excellent chemical stability; excellent heat stability is achieved; good elasticity is achieved, the strip-shaped silicic acid aluminum heat preservation cotton is in a prepressing state and then is installed, no gaps exist in the furnace lining because of block-shaped expansions, contraction of the furnace lining can be compensated, and consequently, the heat-insulating property of the furnace lining is improved, and overall performance is good. Besides, the furnace frame is adopted, so the grinding balls can be evenly heated and can be fed in and discharged from the furnace rapidly and conveniently, and production efficiency and heat treatment quality of the grinding balls are improved.

Description

technical field [0001] The invention relates to the technical field of heat treatment equipment, in particular to an energy-saving heating furnace for heat treatment of cast balls. Background technique [0002] At present, the furnace body of the casting ball heat treatment furnace is built with heavy and light refractory bricks, and conventional resistance band heating is used, and the quenching heating power is 414kw. The main problems are: the heat loss of the furnace wall is serious, and the heating rate of the furnace is slow; the temperature difference of the furnace cross-section reaches 70°C, far exceeding the temperature difference of ±10°C required by the process; the system responds slowly to the change of the load, and the furnace temperature adjustment is difficult. ; The operation of casting balls in and out of the furnace is cumbersome, the heating is uneven, the next quenching process is not timely, and the temperature of the casting balls is unstable. These...

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Problems solved by technology

The main problems are: the heat loss of the furnace wall is serious, and the heating rate of the furnace is slow; the temperature difference of the furnace cross-section reaches 70°C, far exceeding the temperature difference of ±10°C required by the process; the system responds slowly to the change of the load, and the furnace temperature adjustment is difficult. ; The operation of casting balls in and out of the furnace is cumbersome, the heating is uneven, the next quenching process is not timely, and the temperature of the casting balls is unstable

These problems have seriously affected the production of casting balls and the quality of heat treatment

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