CN2030305U - Closed far-infrared ray energy-saving resistance furnace - Google Patents

Abstract

The utility model adopts alumina-silica refractory material, alumina-silica refractory products and bleached bead products to produce a furnace body to obviously reduce the heat radiation and the heat storage of the furnace body and a protecting brick inside the furnace is adopted to prolong the service life of a furnace wall. A furnace door of a sealing type is additionally provided with an aluminum silicate fiber cushion to strength the heat insulation performance. An aludirome resistor band is adopted as a heating element and is placed on a placing tile.. The structural design can shorten 60 to 40% time of the furnace temperature, the power saving rate is 30 to 60% with the advantages of long service life, reliability and good durability.

Description

Closed far-infrared ray energy-saving resistance furnace

The utility model belongs to machinery, metallurgical 0～950 ℃ of Equipment for Heating Processing application.

At present, traditional chamber type electric resistance furnace and energy-saving resistance furnace on door structure, aspect furnace lining heat-insulating property and the durable tolerance, and all exist more defective on the heating.This resistance furnace of two types for example, the energy-saving effect owing to covet, though and use lightweight refracrory to solve heat-insulating property too much as floating pearl goods refractory fibre etc., but intensity extreme difference, service life is short, often occur in production run that furnace wall collapses, furnace roof subsides, the heating of suspension weakness such as come off.

The purpose of this utility model is to use the closed fire door, good heat insulating, the high radiate electric heating element of furnace lining that intensity is high and far infrared improves the furnace insulation performance, increase the intensity of furnace roof and furnace wall, the disadvantage of overcome the heating lodging, blowing and coming off, it is long to make resistance furnace have a life-span, the advantage that reliability and durability performance is good, power saving rate is high.

The both sides furnace walls adopts clay rank shaped brick and floats pearl rank shaped brick, has the far infrared resistive band of evenly arranging by certain distance to put watt on it, two offset shaped brick foreign traders the alumina silicate fiber felt heat-insulation layer is arranged, and the furnace roof monoblock is given the silicate clay sintering furnace roof of system.Near the bottom protection tile is arranged in the furnace wall, furnace bottom is provided with furnace bottom and puts watt.The body of heater front end has celestial axis, bearing block, handle, the fire door that hanger, guide groove and roller are formed is carried opening mechanism, and the fire door wall has the alumina silicate fibre pad, and the heating of body of heater both sides and bottom is the siderochrome aluminium resistive band that scribbles far ultrared paint, it also is provided with locking socket on being placed in and putting watt on fire door.

The said structure design has reached the purpose of this utility model, because stove has heat-insulating property preferably, make sky stove and load heating-up time shorten about 60～40% than traditional RJX type resistance furnace, power saving rate reach 30～60% and furnace roof never takes place, furnace wall subsides and heating lodging, blow the phenomenon that comes off, strengthened the service life of body of heater, reliability and durability property is good.

Below in conjunction with Figure of description the utility model is further described.

Fig. 1, closed far infrared resistance furnace schematic diagram

Fig. 2, resistance furnace transmission position schematic diagram.

Fig. 3, the resistance furnace resistive band is placed schematic diagram.

Be to strengthen furnace wall intensity, adopt clay brick (14) and protection tile (11) protection tile (11) to be positioned near the drop-bottom (22) in the furnace wall bottom, break furnace wall and stove silk because of carelessness because of the operator with the heated parts that prevents to be placed on the drop-bottom (22).Evenly arrange that in the drop-bottom lower end 4 groove bars have the far infrared resistive band to put watt (13) in it, have refractory brick to make furnace bottom.Adopt on the top of the bottom clay brick (14) of rear portion and both sides furnace wall and to float pearl rank shaped bricks (7) to strengthen the heat-insulating property of body of heater, simultaneously on the furnace wall of both sides, arrange evenly that by certain distance the far infrared resistive band put (9), settle alumina silicate fiber felt heat-insulation layer (15) further to strengthen the furnace insulation performance in furnace wall outer end, both sides, give the silicate clay sintering of system with monoblock and make heat-insulating property and the intensity that furnace roof (16) improves furnace roof.The heat radiation of body of heater, accumulation of heat are obviously reduced through above-mentioned design, furnace wall adopts clay brick and protection tile to strengthen maintenance capacity service life to reduce simultaneously.

The design of the fire door of traditional resistor stove is unreasonable, adopts the cast iron structure usually, and poor, the rapid heat dissipation of this fire door heat-insulating property works that to close fire door very inconvenient, and the fire door seal is relatively poor.The utility model adopts the fire door transmission mechanism to strengthen the seal of fire door, at the fire door inwall alumina silicate fibre pad is housed simultaneously.The heat insulating ability and the flexibility of body of heater have been improved.

Hold layout alumina silicate fibre pad within it with steel plate or the iron fire door of the present utility model (17) of doing, to strengthen the fire door heat insulating ability, make a pair of hanger (6) near fire door (17) top, roller (10) is installed in the fire door both sides.Settle pair of bearing (5) in the body of heater upper end, being placed on celestial axis in the bearing block (20) can rotate flexibly, celestial axis (20) is gone up the rope sheave (1) (21) (4) of fixed placement steel wire rope, limit switch (12) and hinge wheel (26), minor sprocket (24) and wind (8) are installed near body of heater one side hinge wheel (20) bottom, are driven minor sprocket transmission hinge wheel with chain (23) celestial axis is rotated.A pair roller guide groove (18) is arranged in the fire door both sides, makes roller can press the operation of guide groove track in guide groove (18), and steel wire rope (2) (3) one ends are connected (1) (4) other end and are connected with the hanger of fire door both sides with rope sheave.Rope sheave (21), the effect of steel wire spiral shell (19) and limit switch (12) is to limit door opened height and makes the fire door location.

Easily produce lodging, disadvantages such as short circuit.The utility model adopts siderochrome aluminium resistive band (27) with low cost, and far ultrared paint will be arranged to increase its radiancy, for ease of the employing easy to installation and maintenance of resistive band (27) resistive band (27) is placed in and puts on watt (9) (13), in the face of workpiece produces direct radiation, its amount of radiation increase as a result, the body of heater quick heating, its surperficial power is by the 1.9W/CM of round screw thread resistance wire ²Reduce to 1.5W/CM ², also increase service life.

During use, shaking wind (8) drives the celestial axis rotation and makes rope sheave (1) (3) on unit's axle (20) also rotate the steel wire rope that gets up to drive on the rope sheave to move upward, the roller that makes the fire door both sides along guide groove move upward open fire door and put into workpiece after, it is airtight with fire door with locking socket (25) and slotting Xiao that the counter-rotating wind is closed fire door, opens the power supply body of heater and carry out work.

The utility model is simple in structure, and fire door has hold-down mechanism, has increased the motion of horizontal direction, can guarantee the sealing of fire door, the alumina silicate fibre pad is housed in addition when 950 ℃ of furnace temperature, and this fire door reduces about 80 ℃ than the tradition face temperature rise of taking temperature.

In a word, the utility model is a kind of comparatively desirable heat treatment resistance furnace.

Claims (2)

1; closed far infrared energy-saving resistance furnace is by fire door; furnace wall and furnace roof are formed; of the present utility model being characterised in that: the both sides furnace wall is by clay rank shaped bricks (14) and float pearl rank shaped bricks (7) and formed; there is the far infrared resistive band of evenly arranging by certain distance to put watt (9) on it brick acid aluminum fiber felt heat-insulation layer (15) is arranged in two offset shaped brick outer ends; furnace roof is the silicate clay sintering furnace roof (16) that monoblock is given system; there is protection tile (11) furnace bottom to have furnace bottom to put watt (13) near the bottom in the furnace wall; the body of heater front end is provided with celestial axis (20); bearing block (5) handle (8); hanger (6); guide groove (18) and roller (10); the fire door wall has the alumina silicate fibre pad; the heating of body of heater both sides and bottom is the siderochrome aluminium resistive band that scribbles far ultrared paint; on it is placed in and puts watt, locking socket is arranged on the fire door.

2, by the described closed far infrared energy-saving of claim 1 resistance furnace, it is characterized in that: hanger (6) is positioned near the door upper part, and there is a pair roller (10) the fire door both sides, and celestial axis is positioned at the body of heater upper end, and guide groove (18) is positioned near the fire door both sides.

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