CN200989727Y

CN200989727Y - Stepped de-waxing kiln

Info

Publication number: CN200989727Y
Application number: CN 200620147158
Authority: CN
Inventors: 黄定福
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-29
Filing date: 2006-12-29
Publication date: 2007-12-12
Anticipated expiration: 2016-12-29

Abstract

The utility model relates to a thermal furnace for industrial ceramic wax removal, comprising a furnace head blowing room, a plurality of sintering rooms built from low to high, and a furnace tail chimney, wherein each sintering room consists of a furnace door combustion room, a furnace bottom, a furnace top and air outlets on the furnace top; each furnace head blowing room is provided therein a industrial blower; the blowing room and the sintering rooms communicate via venting holes; the sintering rooms communicate with one another via venting holes. The wax removal is begun by igniting from a first sintering room. Different wax removing temperature curves can be designed according to the products in different sintering rooms, thereby achieving the objective of removing wax from industrial ceramic bodies. The utility model provides a thermal furnace for industrial ceramic wax removal widely applied to wax ceramic bodies in various industrial ceramic hot die-casting molding productions.

Description

Staged de-waxing kiln

Affiliated technical field

The utility model relates to a kind of industrial ceramics de-waxing thermal kiln furnace.

Background technology

At present, industrial ceramics production can be divided into from moulding process: plastic molding, dry-pressing formed, hot die-casting molding, isostatic compaction etc.In hot die-casting molding, people have added certain paraffin and have made adhesive in powder, utilize the thermoplastic property of paraffin, with compressed air wax slurry are cast into moulding among the punching block, in order to produce the comparatively complicated industrial ceramics goods of device shape.Behind the hot die-casting molding, in the base substrate eliminating of wax most important to burning till of product because have only the wax in the base substrate is excluded, the base substrate high temperature sintering could be become porcelain.The method that adopts on the technology is that content of wax base substrate is embedded in the lean property powder now, slowly heats up in Industrial Stoves, utilizes the adsorptivity of lean property powder that the wax in the base substrate is slowly got rid of.Make now to be used for the Industrial Stoves of de-waxing downward flame side's kiln or circular kiln, pushed bat kiln, rolling tunnel kiln etc. are arranged, there is following defective in these kiln de-waxings: the down-draft kiln de-waxing cycle is long, is intermittence, and energy resource consumption is big; Continous way kiln such as pushed bat kiln then de-waxing technology are difficult to control, and be little etc. to the adaptability of product.

Summary of the invention

In order to overcome the existing technologic deficiency of Industrial Stoves de-waxing, the utility model provides a kind of staged de-waxing kiln, and this staged de-waxing kiln can not only the continuity de-waxing, and de-waxing heating curve that can be different according to different product designs, wide adaptability.

The technical scheme that its technical problem that solves the utility model adopts is: 4-10 the chamber of burning till conspired to create a kiln successively, be provided with time air compartment at kiln hood, establishing industrial air blast in the blowing chamber blows to the kiln tail, each wicket place of burning till the chamber establishes the combustion chamber, reduce kiln tail chimney height simultaneously, utilize the draft of kiln hood air blast and kiln tail chimney to make hot-air heat each gently equably and burn till the indoor saggar that the wax base is housed, so adopt and burn till the way that each burns till the chamber successively, thereby reach the purpose of getting rid of wax in the industrial ceramics base substrate continuous, quick, energy-conservationly.

The beneficial effects of the utility model are: owing to adopt the staged chamber of burning till to burn till successively, blow from kiln hood simultaneously, the de-waxing process is mainly based on convection heat transfer' heat-transfer by convection, it is mild to use de-waxing technology to heat up, goods are heated evenly, and technology controlling and process is simple, and are strong to the adaptation of goods size, in the last de-waxing process waste heat is passed to the following chamber of burning till, thermal efficiency height.

Description of drawings

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

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is an A-A cutaway view of the present utility model.

Among the figure 1, blowing chamber, 2, steam vent, 3, wicket (combustion chamber), 4, burn till the chamber, 5, at the bottom of the kiln, 6, Yao Ding, 7, chimney, 8, air vent.

The specific embodiment

In Fig. 1, Fig. 2, conspire to create a kiln according to will definitely 4-10 burning till window 4, kiln hood is provided with blowing chamber 1, establish industrial air blast in the blowing chamber and be used for air-supply, each burn till chamber 4 by at the bottom of the kiln 5, wicket 3 and kiln top 6 form, 3 places all do the combustion chamber at wicket, establish steam vent 2 on the kiln top 6, the kiln tail is provided with and burns till the contour chimney in chamber 7, and every adjacent two are burnt till between the chamber simultaneously, comprise that blowing chamber and first burn till the air vent 8 that is provided with between the chamber by hot-air.

Operation principle is as follows: the content of wax industrial ceramics base substrate that varies in size is placed the different chambers 4 of burning till together with pack into the classification in the saggar of lean property absorption adsorbent, since the 1st combustion chamber, wicket 3 place igniting of burning till chamber 4, bavin and waste or used plastics and industrial coal are fuel to give up, air blast air-supply in the kiln hood blowing chamber 1, hot-air slowly heats the goods in the saggar, the wax flue gas pushes up 6 upper air-vents 2 by kiln and discharges a part, some is sent to other by air vent 8 and burns till chamber 4, discharges from the chimney 7 of its steam vent and last kiln tail.Like this, de-waxing is carried out in the chamber of burning till one by one, also can burn till indoor different goods according to difference and work out different binder burnout temperature curves, when work in the chamber of burning till in the back simultaneously, the front can be burnt till indoor product and take out and carry out high temperature and burn, thereby reach continuous, energy-conservation, mass-produced purpose.

Claims

1, a kind of staged de-waxing kiln, it include several by wicket (3), kiln top (6), kiln at the bottom of (5) chamber (4) of burning till formed connect and compose from low to high successively, it is characterized in that: the front of burning till chamber (4) at lowest part is provided with a blowing chamber (1), is provided with in the contour chimney of this kiln (7) at highest point kiln tail.

2, staged de-waxing kiln according to claim 1 is characterized in that: each kiln top (6) portion of burning till the chamber is provided with row's formula hole (2).

3, staged de-waxing kiln according to claim 1 and 2 is characterized in that: blowing chamber (1) and first burn till between the chamber (4), and adjacent two are burnt till and are provided with air vent (8) between the chamber (4).