CN203148216U

CN203148216U - High-temperature crucible experimental furnace

Info

Publication number: CN203148216U
Application number: CN 201320028092
Authority: CN
Inventors: 李海军; 孙鸣高
Original assignee: LUOYANG HUAXULIER ELECTRIC STOVE CO Ltd
Current assignee: Luoyang Shenhua Heating Technology Co ltd
Priority date: 2013-01-21
Filing date: 2013-01-21
Publication date: 2013-08-21
Anticipated expiration: 2023-01-21

Abstract

The utility model discloses a high-temperature crucible experimental furnace which comprises a furnace shell, a hearth, a hearth cover, a crucible, a crucible cover and heating elements, wherein the hearth is located in the furnace shell, a furnace lining is arranged between the hearth and the furnace shell, and the hearth is formed by splicing fiber plates. Openings are arranged at the upper end and the lower end of the hearth, the hearth cover covers the position of the upper end opening of the hearth, and a load-bearing platform is constructed at the lower end of the hearth. The crucible is arranged in the hearth and located on the load-bearing platform, an upper end opening of the crucible extends out of the hearth and is parallel and level to the upper end surface of the hearth cover, the crucible cover covers the position of the upper end opening of the crucible, thermocouple jacks connected with the interior of the crucible are arranged on the crucible cover, and the heating elements are located in the hearth and surround the crucible. The high-temperature crucible experimental furnace has the advantages of being fast in temperature rising, small in temperature difference and high in working efficiency; and is light in weight, small in volume and convenient to move and maintain compared with the traditional crucible furnace due to the fact that the hearth and the furnace lining of the high-temperature crucible experimental furnace are made of fiber materials.

Description

A kind of high-temperature crucibles experimental furnace

Technical field

The utility model relates to a kind of high-temperature crucibles experimental furnace of laboratory, is used for units such as laboratory in colleges and universities, industrial and mining enterprises, scientific research and does the experiment of thermal diffusion salt bath, analysis of chemical elements, physics mensuration, fusion metal.

Background technology

As everyone knows, the high-temperature crucibles stove is the experimental facilities of R﹠D institution's indispensabilities such as universities and colleges of enterprise, existing crucible furnace mainly contains the crucible furnace with combustion gas, fuel oil or water-gas burning heating, this crucible furnace efficiency of heating surface is not high, energy consumption is big, heaviness, the also high-temp waste gas of Pai Chuing, be impractical in the laboratory, be unfavorable for environmental protection; Intermediate frequency high frequency crucible furnace, also comparatively heavy cost is higher, and electric load is also bigger; Another kind of electrical crucible is the mode that adopts resistance heated, and the furnace lining of this electrical crucible is the structure that adopts highiy refractory brick to build by laying bricks or stones, and this structure makes furnace temperature inhomogeneous, energy consumption also higher, control accuracy is low, volume is bigger, is not easy to move, and also is not suitable for using in the laboratory.

Summary of the invention

In order to address the above problem, the purpose of this utility model provide a kind of furnace temperature evenly, the high-temperature crucibles experimental furnace of heating rate piece.

A kind of high-temperature crucibles experimental furnace, comprise furnace shell, burner hearth, the burner hearth lid, crucible, crucible cover and heating element heater, burner hearth is positioned at the inside of furnace shell, be provided with furnace lining between burner hearth and the furnace shell, burner hearth is to inhale worry forming ceramic fiberboard by vacuum to be spliced, on the burner hearth, lower ending opening, the burner hearth lid is established the upper end open place that double-decker places burner hearth, the lower end of burner hearth has been built bearing platform by laying bricks or stones, described crucible is located at burner hearth inside and is positioned on the bearing platform, the upper port of crucible stretches out burner hearth and to cover end face concordant with burner hearth, this is located at the upper port place of crucible crucible cover, described crucible cover is provided with the thermocouple jack that communicates with crucible inside, and described heating element heater is located at burner hearth inside and lays around crucible.

Further, adopt stepped sealed the connection between described burner hearth and the bearing platform.

What further, described furnace lining adopted is aluminosilicate fiber cotton.

Further, described bearing platform is to be built by laying bricks or stones by mullite brick.

Further, be provided with movable pulley bottom the described furnace shell.

Owing to adopt technique scheme, the utlity model has following superiority:

This high-temperature crucibles experimental furnace has the heating rate piece, has a narrow range of temperature, the characteristics of high efficiency, and with respect to traditional crucible furnace, burner hearth of the present utility model and furnace lining adopt fibrous material to make, have in light weight, volume is little, be convenient to mobile and safeguard.

Description of drawings

Fig. 1 is cutaway view of the present utility model;

Fig. 2 is A-A cutaway view among Fig. 1;

Among the figure: the 1-furnace shell; The 2-burner hearth; The 3-furnace lining; The 4-crucible; 5-burner hearth lid; The 6-crucible cover; The 7-thermocouple jack; The 8-heating element heater; The 9-bearing platform; The 10-movable pulley.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail.

As Fig. 1, shown in 2, described high-temperature crucibles experimental furnace, comprise furnace shell 1, burner hearth 2, burner hearth lid 5, crucible 4, crucible cover 6 and heating element heater 8, burner hearth 2 is positioned at the inside of furnace shell 1, be provided with furnace lining 3 between burner hearth 2 and the furnace shell 1, burner hearth 2 is that the fiberboard by vacuum forming is spliced, on the burner hearth 2, lower ending opening, burner hearth lid 5 lids are located at the upper end open place of burner hearth 2, the lower end of burner hearth 2 is provided with the bearing platform 9 that adopts mullite brick to build by laying bricks or stones, described crucible 4 is located at burner hearth 2 inside and is positioned on the bearing platform 9, the upper port of crucible 4 stretches out burner hearth 2 and to cover 5 upper surfaces concordant with burner hearth, crucible cover 6 lids are located at the upper port place of crucible 4, and described crucible cover 6 is provided with the thermocouple jack 7 that communicates with crucible 4 inside, and described heating element heater 8 is located at burner hearth 2 inside and lays around crucible 4.

Adopt stepped sealed the connection between described burner hearth 2 and the bearing platform 9, can make burner hearth 2 not have the seam of perforation, improved heat insulation effect.

What described furnace lining 3 adopted is aluminosilicate fiber cotton, utilize that cellucotton thermal capacitance density is little, high insulating effect, be convenient to the characteristics of cutting processing, can increase substantially heating rate and operating efficiency, simultaneously, the employing refractory brick of relative conventional crucibles 4 stoves or the furnace lining 3 of pouring material insulation construction, greatly reduce overall weight and the volume of the utility model high-temperature crucibles 4 stoves, be conducive to mobile and maintenance.

Described furnace shell 1 adopts thin cold-rolled steel sheet to make by bending, welding processing, and, in the bottom of furnace shell 1 movable pulley 10 is installed, convenient mobile.

Built heat-insulation layer by laying bricks or stones between burner hearth 2 upper end open places and furnace shell 1, heat-insulation layer is the structure that adopts mullite brick and fiber-wall-board partition to arrange, and is conducive to strengthen the intensity of burner hearth 2 opening parts and improves heat insulation effect.

On the burner hearth 2 thermocouple jack 7 can be set, be used for thermocouple is installed, in order to detect burner hearth 2 internal temperatures in real time.

Described crucible 4 can adopt conventional crucible or salt bath crucible according to requirement of experiment, and described salt bath crucible is that the bilateral symmetry on the inwall of conventional crucible arranges a hanger, and two hangers are connected with a handle, has made things convenient for salt bath crucible turnover burner hearth.

Described heating element heater 8 is globar, and the uniform both sides that are located in the burner hearth 2 of globar, and globar links to each other with the PID Programmable Logic Controller, make intensification more fast, control is accurate.

Claims

1. high-temperature crucibles experimental furnace, comprise furnace shell (1), burner hearth (2), burner hearth lid (5), crucible (4), crucible cover (6) and heating element heater (8), burner hearth is positioned at the inside of furnace shell, be provided with furnace lining (3) between burner hearth and the furnace shell, it is characterized in that: burner hearth (2) is to be spliced by fiberboard, on the burner hearth, lower ending opening, burner hearth lid (5) lid is located at the upper end open place of burner hearth, the lower end of burner hearth (2) has been built bearing platform (9) by laying bricks or stones, described crucible (4) is located at burner hearth inside and is positioned on the bearing platform (9), the upper port of crucible (4) is stretched out burner hearth and concordant with burner hearth lid (5) upper surface, crucible cover (6) lid is located at the upper port place of crucible, described crucible cover (6) is provided with the thermocouple jack (7) that communicates with crucible inside, and described heating element heater (8) is positioned at burner hearth (2) inside and lays around crucible (4).

2. high-temperature crucibles experimental furnace according to claim 1 is characterized in that: adopt stepped sealed the connection between described burner hearth (2) and the bearing platform (9).

3. high-temperature crucibles experimental furnace according to claim 1 is characterized in that: what described furnace lining (3) adopted is aluminosilicate fiber cotton.

4. high-temperature crucibles experimental furnace according to claim 1, it is characterized in that: described bearing platform (9) is to be built by laying bricks or stones by mullite brick.

5. high-temperature crucibles experimental furnace according to claim 1 is characterized in that: be provided with movable pulley (10) bottom the described furnace shell (1).