CN203413952U

CN203413952U - Crucible aluminum furnace

Info

Publication number: CN203413952U
Application number: CN201320248553.XU
Authority: CN
Inventors: 任培坚; 肖飞; 林晓
Original assignee: JSCC AUTOMATION (XIAMEN) Ltd
Current assignee: JSCC AUTOMATION (XIAMEN) Ltd
Priority date: 2013-05-09
Filing date: 2013-05-09
Publication date: 2014-01-29
Anticipated expiration: 2023-05-09

Abstract

The utility model discloses a crucible aluminum furnace, which comprises a furnace body, an electric furnace heating wire, a crucible, a molten aluminum temperature controller, a hearth temperature controller and a control circuit, wherein the molten aluminum temperature controller is used for controlling the temperature of molten aluminum in the crucible; the hearth temperature controller is used for controlling the temperature of the electric furnace heating wire; the control circuit is used for preventing the electric furnace heating wire and the crucible from being overheated; the normally-open contact of the hearth temperature controller and the normally-open contact of the molten aluminum temperature controller are connected in series through the control circuit. According to the crucible aluminum furnace, the health temperature controller is additionally arranged in an electric furnace heating wire cavity, the normally-open contact of the hearth temperature controller in the electric furnace heating wire cavity is connected in series with the normally-open contact of the molten aluminum temperature controller in the crucible through the control circuit, and the electric furnace heating wire stops heating once any one of the temperature controllers in the electric furnace heating wire and the crucible reaches a set temperature during heating of the molten aluminum, so that the electric furnace heating wire and the crucible are prevented from being overheated, the aims of prolonging the service lives of the electric furnace heating wire and the crucible are fulfilled, and the production cost is lowered.

Description

Crucible aluminium stove

Technical field

The crucible aluminium stove that the utility model is used while relating to die casting electric machine casing, deceleration box die casting.

Background technology

When existing electric machine casing, deceleration box die casting, aluminium ingot is to melt with crucible aluminium stove.As shown in Figure 1, owing to only having an aluminium water temperature controller, when crucible aluminium furnaceman does, during electric furnace heating wire heat temperature raising, the crucible intensification of being heated, when crucible reaches temperature controller design temperature, the normally opened contact of aluminium water temperature controller disconnects, but electric furnace heating wire heating-up temperature can exist superheating phenomenon, electric furnace heating wire power-off stops heating, and the temperature of crucible stops temperature rise needing process time, also can there is superheating phenomenon, make the service life of electric furnace heating wire and crucible shorter, thereby production cost and cost of equipment maintenance are remained high, affect productivity effect.For electric furnace heating wire service life of heating, be at present about 500 hours, be about 350 hours the service life of crucible.

Utility model content

For solving electric furnace heating wire and the too short problem of pot life of crucible aluminium stove in prior art, a kind of crucible aluminium stove of architecture advances is proposed, avoid electric furnace heating wire and crucible overheated, electric furnace heating wire and pot life are all had significantly and extend, thereby reduce production costs.

The utility model adopts following scheme to realize above-mentioned purpose:

Crucible aluminium stove, comprise body of heater, electric furnace heating wire, crucible and for controlling the aluminium water temperature controller of aluminium coolant-temperature gage in crucible, it is characterized in that, also comprise burner hearth temperature controller and for the controlling electric furnace heating wire temperature control circuit for preventing that electric furnace heating wire and crucible are overheated, the normally opened contact of described burner hearth temperature controller and aluminium water temperature controller normally opened contact are connected by described control circuit.

The beneficial effects of the utility model are: the utility model by increasing a burner hearth temperature controller in electric furnace heating wire chamber, by control circuit, the normally opened contact of the normally opened contact of the burner hearth temperature controller in electric furnace heating wire chamber and the aluminium water temperature controller in crucible is connected, when adding hot melt aluminium, temperature controller in electric furnace heating wire and crucible is when as long as any one reaches design temperature, electric furnace heating wire all stops heat temperature raising, thereby prevent that electric furnace heating wire and crucible are overheated, reach the object that extends electric furnace heating wire and pot life, reduced production cost.

Accompanying drawing explanation

Fig. 1 is existing crucible aluminium stove inner control circuit schematic diagram;

Fig. 2 is the utility model crucible aluminium furnace structure schematic diagram;

Fig. 3 is the utility model crucible aluminium stove inner control circuit schematic diagram.

Main description of reference numerals

1 body of heater 2 electric furnace heating wire 3 crucible 4 aluminium water temperature controller 5 burner hearth temperature controller 6 control circuits

TK1 aluminium water temperature controller normally opened contact TK2 burner hearth temperature controller normally opened contact HL power supply indicator

The specific embodiment

Below in conjunction with drawings and embodiments, the utility model is further illustrated.

Please refer to Fig. 2 and Fig. 3, be respectively the utility model crucible aluminium furnace structure schematic diagram and control circuit schematic diagram.

Crucible aluminium stove, comprise body of heater 1, electric furnace heating wire 2, crucible 3 and for controlling the aluminium water temperature controller 4 of aluminium coolant-temperature gage in crucible, also comprise burner hearth temperature controller 5 and for the controlling electric furnace heating wire 2 temperature control circuit 6 for preventing that electric furnace heating wire 2 and crucible 3 are overheated, the normally opened contact of described burner hearth temperature controller 5 and aluminium water temperature controller normally opened contact are connected by described control circuit.

Crucible aluminium stove operation principle of the present utility model:

1, open heating by electric cooker switch QF, the 4 coil conductings of aluminium water temperature controller, aluminium water temperature controller normally opened contact TK1 conducting, the 5 coil conductings of burner hearth temperature controller, burner hearth temperature controller normally opened contact TK2 conducting, power supply indicator HL is bright, contactor coil KM conducting, contactor KM contact conducting, electric furnace heating wire obtains electrical heating and heats up;

When if 2 aluminium water temperature controllers 4 reach design temperature, aluminium water temperature controller TK1 closing contact disconnects, contactor coil KM power-off, and contactor KM contact disconnects, and electric furnace heating wire power-off stops heating; When aluminium coolant-temperature gage drops to design temperature when following, aluminium water temperature controller normally opened contact TK1 conducting, contactor coil KM conducting, contactor KM contact conducting, electric furnace heating wire obtains electric Repeat-heating again and heats up, and reaches the object of aluminium water insulation;

When if 3 burner hearth temperature controller TK2 reach design temperature, burner hearth temperature controller TK2 closing contact disconnects, contactor coil KM power-off, and contactor KM contact disconnects, and electric furnace heating wire power-off stops heating;

4, when fire box temperature drops to design temperature when following, the conducting of burner hearth temperature controller TK2 normally opened contact, contactor coil KM conducting, contactor KM contact conducting, electric furnace heating wire obtains electric Repeat-heating again and heats up, and reaches burner hearth heat temperature raising object.

Adopt the crucible aluminium stove after the utility model improves, pot life is about 450 hours all more than 1000 hours service life for electric furnace heating wire, and double service life, and the use cost of electric furnace heating wire reduces by one times.Crucible aluminium stove stream time lengthens, and manufacturing schedule controllability is strengthened, and the prolongation of crucible aluminium furnace apparatus maintenance time interval, and maintenance cost reduces.

Above a kind of crucible aluminium stove provided by the utility model is described in detail, in the utility model, applied specific case principle of the present utility model and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and thought thereof; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model meanwhile.

Claims

1. crucible aluminium stove, comprise body of heater, electric furnace heating wire, crucible and for controlling the aluminium water temperature controller of aluminium coolant-temperature gage in crucible, it is characterized in that, also comprise burner hearth temperature controller and for the controlling electric furnace heating wire temperature control circuit for preventing that electric furnace heating wire and crucible are overheated, the normally opened contact of described burner hearth temperature controller and aluminium water temperature controller normally opened contact are connected by described control circuit.