SU398645A1 - RADIATION FURNACE FOR HEATING METAL - Google Patents

Description

I

The invention relates to the field of heating devices for high-speed heating of large cross-section billets in forging and stamping production and can be used in the automotive and machine-building industries. A known radiation furnace for heating metal containing heating sections, power communications and a gas pushing mechanism, wherein the heated fuel is injected through porous walls and burned on the surface of the walls in the working space of the furnace.

A disadvantage of the known furnace is the difficulty of heating large-section blanks with a capacity that ensures a normal low temp. As the length of the pipe G5 in this case increases significantly and the heats of the furnace are pushed through the hearth. In addition, the furnace is known to fit well into the layout of modern blacksmith shops.

In order to eliminate the disadvantages of the proposed furnace, it is equipped with a basement bed, on which heating sections are installed, alternately installed for loading and unloading, and without moving walls with radioactive radiators and channels for exhausting combustion products,

which are installed heating section. Such a design of the radiation furnace allows high-speed heating of large cross-section blanks and significantly reduces

length of the furnace.

FIG. 1 schematically shows the proposed furnace, plan view; in fig. 2 is a section along A-A in FIG. one; in fig. 3 is a section along BB in FIG. one; in fig. 4 - section along bb pa

FIG. one; in fig. 5 is a section along G ‑ Y in FIG. four.

The heating sections 2 are located on the base / bottom section, under which the lining is reinforced with heat-resistant refractory furnace 3 and heat insulating brick.

The code of each section is made of porous ceramics 5, inside which the pipes 6 are inserted for the iodine of the combustible mixture. The outer surface of the ceramic is covered with an inelastic shell 7, and at the junction of the node with a vault water caissons 8 are installed. The fuel is in the 1st section 2 through the water gate 9. The bed / is placed on the rails W through which. It is driven by the wheels. The side walls of the furnace consist of water-cooled sections 12 and radiation burners 13 made of earthenware ceramics installed at the stopping points of sections, but at the loading and unloading positions of the wall blanks are broken.

J3 burners form channel 14, which

serves to remove combustion products and is framed by water-cooled caissons 15. A pusher 16 is installed to feed the blanks to the loading positions.

Through pipes, a combustible mixture is fed into the interior of porous ceramics 5 and burners 13, which burns on the radiating surface of the ceramics, and its surface cracks and intensively radiates heat to the workpieces 14, pushed by the pusher 16 through section 2 of the furnace. After each stroke of the pusher, the frame is rotated / by one step and the next section 2 is installed at the loading and unloading position. Burners 13 at all other positions prevent the ends of the extreme blanks from getting stuck.

13 sections 2 are fired. Flue gases from sections 2 are removed at these positions through channels 14.

Subject invention

Radiation furnace for heating metal containing heating sections, energy and gas exhausting communications and the mechanism of pushing through the workpieces, characterized in that, in order to ensure and speed heating of large sections, it is equipped with a movable bed on which heating sections are installed, alternately installed at the loading and unloading positions, and fixed walls with radiation emitters and channels for exhausting combustion products, between which the heating sections are installed

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