High-efficiency and energy-saving type quenches, aging oven
One, technical field
The utility model belongs to the metallurgical engineering technical equipment, relates in particular to a kind of stable temperature control in the stove, firing period of making and lacks, controls high-efficiency and energy-saving type quenching flexibly, ageing device.
Two, background technology
In recent years, the development of advancing by leaps and bounds along with domestic and international automobile, motorcycle industry, rapid heat dissipation, aluminium alloy wheel hub in light weight, that comfortableness is strong, handsome in appearance have replaced steel wheel hub, the quenching, the aging oven that are applied to aluminium alloy wheel hub manufacturing concern also develop rapidly, and the design of various advanced persons' kiln, the technology of manufacturing are constantly brought forth new ideas especially.Quenching furnance is a carrier of realizing quenching technology, it is the heat treated nucleus equipment of aluminium alloy wheel hub, whether the advanced person of stove performance has not only determined the height of energy consumption, and directly has influence on the competitive capacity of product on market, finally is related to the development of wheel hub manufacturing concern.External main at present the employing makes aluminium alloy wheel hub finish whole desired heat treatment process freely on production line, continuous oven by particular design interconnects communication, can multi-facetedly connect in the burner hearth, and can make 90 ℃ of angles of workpiece charging basket change Xia Dao heating zone or transition insulation can over to, arrive at subsequent processing or enter the cooling room cooling through transmission, this furnace binding and transport unit all have quite high level, and the whole plant price is also than higher.At present, wheel hub thermal treatment has realized production domesticization, three kinds of electricity consumptions, oil firing, burning gas are arranged on the type of heating, domestic supply of electric power is insufficient to be influenced owing to being subjected to, the heat treatment furnace of oil firing, burning gas is progressively being promoted, use cost is not high yet, but the wheel hub heat treatment furnace of oil firing often can not produce a desired effect owing to consider the influence of aspect factors such as fuel price, control mode, stove furnace thermal efficiency.Technical problems such as generally speaking, prior art mainly exists the heat treated article inhomogeneous product percent of pass that causes of being heated low, and temperature control is unstable, and stove overall thermal efficient is low.
Three, summary of the invention
The purpose of this utility model has just provided the energy-efficient quenching of aluminium alloy wheel hub thermal treatment, the aging oven that a kind of heat treated article is heated evenly, temperature control is easy, stove overall thermal efficient is high.The technical scheme that its technical problem that solves the utility model adopts is: it is by quenching furnance, quenching pond and aging oven three parts are formed, its quenching furnance agent structure is by steel structure frame, the thermal insulation furnace body that refractory materials is built by laying bricks or stones, be arranged at the roller rod of body of heater inner bottom part, body of heater transmission rig and the firing system formation that is arranged at body of heater, described firing system is by the steam line that is arranged at the body of heater outside, combustion-supporting airduct, burner is formed, burner is arranged on the furnace wall, fire end is in body of heater inside, the fuel gas inlet of outer end is connected with steam line by branch gas tube, blast inlet is by combustion air arm and combustion air pipe coupling, at the body of heater top circulation has been installed and has stirred blower fan, burner is provided with smoke exhaust fan.Aging oven mainly is made up of the aging oven body of heater that steel structure frame and insulating cotton are made, and its bottom is provided with the roller rod, and by the transmission rig driving of body of heater, the blast inlet on the body of heater is connected with the exhaust duct of quenching furnance burner smoke exhaust fan, and its afterbody is provided with the natural exhaust cover.Between quenching furnance discharge door and aging oven feeding gate, also be provided with a quenching pond, and a cover lifting running gear is installed.In order to make the further fully burning and keep the cleaning of combustion gas arm of combustion gas in the burner, between the combustion-supporting airduct of quenching furnance firing system and burner, set up the combustion-supporting arm of secondary, the bottom of the combustion gas arm of quenching furnance firing system is provided with wash water valve.The roller rod transporting mechanism that is arranged in quenching furnance and the aging oven is by the chain gear of adopting variable-frequence governor to control, and whole piece quenches, the aging oven device is provided with instrument temperature controlling system, blower fan control system, Machinery Control System, temperature display system and security alerting system and computer control system.
The beneficial effects of the utility model are that because quenching furnance employing hot air circulation type of heating is aided with the circulation stirring system, homogeneous heating, temperature are easy to control.The flue gas that burning produces is concentrated at burner and is extracted out by smoke exhaust fan, deliver to aging oven by smoke exhaust pipe, thereby effectively improved thermo-efficiency, and monitoring is automatically implemented in the operation of stove whole piece equipment key position, working strength of workers is significantly reduced, working efficiency is greatly improved, and product thermal treatment qualification rate brings up to 99% by 95%, saves 35% than the energy consumption of like product.
Four, description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the utility model quenching furnance firing system structural representation;
Fig. 2 is the utility model quenching furnance cross section structure synoptic diagram;
Fig. 3 is the utility model aging oven cross section structure synoptic diagram.
1. steam lines among the figure, 2. combustion-supporting airduct, 3. combustion gas arm, 4. combustion air arm, 5. manually-operated gate, 6. wash water valve, 7. burner, 8. secondary combustion air arm, 9. roller rod, 10. quenching furnance framework, 11. recirculation blower, 12. quenching furnance bodies of heater, 13. aging oven frameworks, 14. aging oven bodies of heater.
Five, embodiment
20 meters high-efficiency and energy-saving type aluminium alloy wheel hubs quench to undertake the construction of, aging oven is an example, and stove integral body comprises one 20 meters quenching furnance and one 18 meters aging oven and quenching pond.Quenching furnance is chosen metallic substance and is made framework 10, portion utilizes lagging material to build body of heater 12 by laying bricks or stones within it, this body of heater comprises furnace bottom, furnace wall and furnace roof, furnace bottom is directly on the ground brick with insulation, thickness is 200 millimeters, furnace wall is double-deck, interior wall is that 2 mm thick stainless steel air channels are formed, exterior wall adopts 320 mm thick pure aluminium silicate insulating cotton to make, and furnace roof is provided with the fan housing of being made by 304 stainless steels of 2 mm thick, upper berth 200 mm thick pure aluminium silicate insulating cotton, the burner hearth inner width is 2060 millimeters, loading width is 1700 millimeters, and loading height is 1400 millimeters, and every joint is installed a circulation stirring blower fan at the constant temperature zone top.Choose 80 diameters and be 114 millimeters stainless steel rider rod 9,250 millimeters are installed on appropriate location, body of heater 12 bottom at interval, and an end of roller rod 9 is provided with sprocket wheel, carry out transmission by the chain of taking variable-frequence governor control, and be installed with the sprocket wheel cover plate on body of wall.At 12 stirring blower fans of body of heater 12 tops distribution, hot blast is stirred by the impeller of recirculation blower in the stove, and heat is evenly flowed in stove.The one side top of body of heater is provided with steam line 1, and pressure test point and explosion trap are set on it; Combustion-supporting airduct 2 adopts the A3 steel plate to roll and is embedded in the furnace wall, burner 7 inserts in the furnace wall hole and makes its hot spots be in the burner hearth and be fixedly installed on the furnace wall, the gas port of its outer end links to each other with steam line by branch gas tube 3, blast inlet communicates with combustion-supporting air channel 2 in being arranged at furnace wall by combustion air arm 4, make combustion gas in manually-operated gate is sent into burner 7, combustion air and combustion gas are burnt at burner outlet place thorough mixing.Aging oven metal frame 13 is chosen square steel pipe and is welded, inlay the Side fascia that sprays paint and decorate in square steel pipe, framework 13 interior walls are put the body of heater 14 that insulating cotton is formed, and the cotton thickness of rock wool heat-preservation is 150 millimeters, 2060 millimeters of its burner hearth inner widths, the efficient loading width is 1700 millimeters, and loading height is 1400 millimeters, is 114 millimeters stainless steel rider rod 9 at 80 diameters of 250 millimeters even installations of its bottom interval, by chain gear, adopt variable-frequence governor to control, make its operation balance, be easy to regulate.Quenching furnance and aging oven are equipped with the input and output material fire door, and fire door is the cotton formation of shaped steel welding built-in heat insulation, controls by the travel switch that is arranged at burner hearth inside.Be provided with the quenching pond at quenching furnance discharge end and aging oven feed end, be provided with the lifting water body at the place of coming out of the stove of quenching furnance.During use, to place in the material frame without heat treated aluminium alloy wheel hub, roller rod 9 is rotated, drive the material frame that is positioned over above the roller rod 9 and in burner hearth, at the uniform velocity advance, open burnt gas switch, light the burner 7 in the burner hearth, by thermal circulation fan hot blast is delivered to the whole prod district, reflect temperature in the stove in real time, suitably regulate by 9 temperature trackers, make the insulation belt temperature be controlled at 535 ℃, to the aluminum-alloy wheel even heating.According to the firing period of setting, the goods tower is stated from the plane of roller rod composition, with goods at the uniform velocity, equilibrated carries to the stove tail, when touching discharging fire door travel switch, fire door will rise automatically, and the roller rod shuts down, the operation downwards rapidly of optoelectronic switch indication machine, product is delivered to quenching back, quenching pond, and lifting is in place rapidly, and the roller rod moves product is sent into aging oven then.By be arranged on the aging oven body of heater 14 blast inlet with the flue gas in the quenching furnance send in the burner hearth product dried processing after, the product that sends out from discharge port is finished product.Described quenching furnance and aging oven both can in one linely be built, and also can build side by side in order to save land used.