CN2135133Y

CN2135133Y - All-fibre lining of industrial furnace

Info

Publication number: CN2135133Y
Application number: CN 92238062
Authority: CN
Inventors: 蔡桂林
Original assignee: LUOYANG POWER SUPPLY BUREAU
Current assignee: LUOYANG POWER SUPPLY BUREAU
Priority date: 1992-10-24
Filing date: 1992-10-24
Publication date: 1993-06-02
Anticipated expiration: 2002-10-24

Abstract

The utility model discloses an industrial furnace folding blanket type all-fibre furnace lining, belonging to a furnace lining structure of an industrial furnace. The utility model is made of fibre materials, is used as the folding blanket type precast block of the furnace top of a furnace wall, and is formed by the extrusion and the join of the whole block of the precast block. The folding blanket type fibre precast block is formed by that the two ends of a multilayer refractory fibre blanket whose middle part passes through a metal pull rod to fasten by nuts are clamped by a metal pressing plate. The energy-saving rate of the utility model can reach 20%-40%. The optimum value of volume weight can be ensured by adopting the fiber precast block. Pressurized direction is perpendicular to airflow direction. The industrial furnace folding blanket type all-fibre furnace lining has the advantages of lower thermal conductivity, good energy conservation effect, strong airflow filling corrosion resistance, and long service life.

Description

All-fibre lining of industrial furnace

The utility model belongs to a kind of industrial furnace lining structure, is specifically related to the furled blanket type entire fibre lining of refractory fibre when using and gives clamp dog and formed furnace lining aspect industrial furnace liner.

In China's industrial system, industrial furnace is the emphasis energy consumption equipment, account for 40～50% of whole energy consumptions, adopted brick furnace lining accumulation of heat radiation loss very big in the past, account for 70～90% of whole heat dissipations, countries in the world are all at the new fire-resistant heat insulating material of development in recent years, various ways on probation are used for industrial furnace liner with refractory fibre product, to reach energy-conservation effect: as mounting method, sandwich method etc., refractory fiber blanket sticked on refractory brick or be clipped in refractory brick and insulating brick between, it all be unable to do without brickwork construction, and energy-saving effect is undesirable and short maintenance of life-span is very difficult again.All adopting refractory fibre to do furnace lining is a kind of effective power-economizing method, from the data reflection of present countries in the world all is the Aesop's Lay wood Co., Ltd.'s (also there is this method of copying in China) that adopts the BQW company of the layer spread method such as the U.S. and Japan, this method is that fire-retardent fiber felt-rug or back, blanket layer shop are fixed on the furnace wall with riveting component, its deficiency of depositing is: 1, not compression in advance influences energy-saving effect; 2, the layer shop direction of felt or blanket is parallel with airflow direction, and erosion resistibility is poor; 3, riveting component need be used a large amount of heat proof materials; 4, be not easy to maintenance.

The purpose of this utility model promptly produces thus, mainly provides the furnace lining of a kind of industrial furnace furled blanket type entire fibre lining prefabricated section and row thereof, reaches energy savings, reduces cost and improves the furnace lining purpose in service life; And output, the quality of raising heat treated part, improve working environment.

The technical solution of the utility model is: utilize fibrous material to make as the furled blanket type prefabricated section of furnace wall, furnace roof and by the linking of prefabricated section monoblock and form the industrial furnace entire fibre lining.

Furled blanket type entire fibre lining prefabricated section employing refractory fiber blanket as furnace lining body of wall, furnace roof is a primary raw material, playing length determines according to stove model and wall, top size, stack compacting by the multi-layer fiber blanket and form, the middle part is passed with pull bar, and two ends insert and put metal platen up and down.

The industrial furnace entire fibre lining is made of the linking of furled blanket type prefabricated section monoblock, is welded to connect by circle, angle steel material with prefabricated section metal part with furnace shell.

The advantage that the utlity model has is: main characteristics of the present utility model are fractional energy savings height, and this refractory brick furnace lining is energy-conservation more than 40%, (are comprising mounting method, sandwich method manufacturing furnace lining) than light-weight brick furnace lining fractional energy savings more than 20%.

1, adopted the tapetum fibrosum prefabricated section as furnace lining wall acrosome, guaranteed the unit weight (210kg/m) of tapetum fibrosum prefabricated section, its thermal conductivity is lower, good energy-conserving effect.

2, compression face is vertical with airflow direction in the prefabricated section of folded felt fiber type blanket, thereby has increased anti-air-flow erosion ability.

3, the steel skeleton of the metallic framework of furled blanket type fibre preforms plate and body of heater is welded to connect, and mechanical strength is higher.

4, the furnace lining of furled blanket type fibre preforms piece composition, the middle part that the metal part all is in the whole thickness of prefabricated section tapetum fibrosum can directly not be heated, and is suitable for long-term use.

Embodiment of the present utility model has following accompanying drawing:

Accompanying drawing 1 is the utility model furled blanket type refractory fibre prefabricated section structural representation.

Accompanying drawing 2 is a furled blanket type prefabricated section A-A profile.

Accompanying drawing 3 is the utility model furnace lining structure schematic diagram.

Accompanying drawing 4 is a furnace lining structure A-A profile.

Accompanying drawing 5 is a furnace roof prefabricated section structural representation in the furnace lining.

Accompanying drawing 6 is a furnace roof prefabricated section side view in the furnace lining.

Accompanying drawing 7 is a door coil structures schematic diagram in the furnace lining.

Accompanying drawing 8 is a fire door rod structure schematic diagram in the furnace lining.

Accompanying drawing 9 is a shaft furnace furnace lining structure schematic diagram

Accompanying drawing 10 is a shaft furnace furnace lining vertical view.

In the accompanying drawing: 1, back wall, 2, back wall pressing plate, 3, back wall pull bar, 4, nut, 5, furnace roof body, 6, the furnace roof pressing plate, 7, roofstay, 8, nut, 9, side wall body, 10, the side wall pressing plate, 11, nut, 12, the side wall pull bar, 13, shelf brick, 14, the door pillar body, 15, the door pillar pressing plate, 16, nut, 17, the door pillar pull bar, 18, the door circle body, 19, door circle pressing plate, 20, door circle pull bar, 21, nut.

In conjunction with the accompanying drawings the utility model structure is specifically described:

As shown in drawings: the utility model utilizes the refractory fiber blanket multilayer to stack and forms furled blanket type furnace lining prefabricated section, and industrial furnace liner constitutes by being connected as extruding between the prefabricated section monoblock on body of wall, top; The structural representation that accompanying drawing 1,2 provides as the prefabricated section of chamber type electric resistance furnace side wall, by accompanying drawing 1,2 as can be known, furled blanket type furnace lining prefabricated section is made up of tapetum fibrosum 9, pressing plate 10, pull bar 12, nut 11 and shelf brick 13, its main body is kept flat by tapetum fibrosum 9 multilayers and is overrided to form, its width is thickness of wall body, can be about 200mm, its length is body of wall length, corresponding with stove body of wall length, the two ends folder is with metal platen 10 up and down, the centre can be metal bolts with some pull bar 12() pass, fastening with nut 11; Reach identical in order to the shelf brick of placing heating with the shelf brick of original furnace lining structure, the length lengthening, the one end is interposed in the appropriate location of folded blanket piece, can in folded blanket forming process, add, on the opposite side pad of placing the shelf brick, (be about 1.65 times greater than shelf brick thickness, because the compression ratio of compacting was 210/128:1.657 when folded blanket prefabricated section formed) tapetum fibrosum, guarantee the straight and even and unlikely inclination of the prefabricated section that forms.

As accompanying drawing 5,6: its furnace roof gives clamp dog can be designed to domes, promptly its up and down the double layer of metal pressing plate be arch.

Accompanying drawing 3,4 provides chamber type electric resistance furnace furnace lining structure figure, by accompanying drawing 3,4 as can be known, entire fibre lining is given pushing between the clamp dog monoblock by the furled blanket type fibre furnace lining as wall, top and door pillar body, door circle body to be formed, in the present embodiment, door circle gives clamp dog and presses at the both sides door pillar and give on the clamp dog, furnace roof gives clamp dog and presses in both walls and give on the clamp dog, it is identical with furnace roof that back wall gives the clamp dog height, structure will be formed the metal platen of giving clamp dog, screw rod, the nut extruding sealing of furnace lining thus, be not exposed to burner hearth inside, thereby be difficult for oxide etch.

The industrial furnace entire fibre lining is connected with furnace shell metallic framework (angle steel) electric welding with round steel, angle steel, steel plate with the metallic framework part (metal screw, nut, metal platen) that furled blanket type gives clamp dog; Furnace lining and furnace shell surrounding space fiberfill fibers cotton.Fire door also gives clamp dog (by accompanying

drawing

9,10 as can be known) for full fiber, the shaft furnace furnace lining structure gives clamp dog by cylindrical shape furled blanket type fiber and constitutes, can give clamp dog by one according to furnace height, also can give clamp dog by polylith and constitute, its furnace roof gives clamp dog by circular furled blanket type fiber and constitutes.

Need to prove: press bolt, the clamping plate of tapetum fibrosum can use carbon steel for moderate oven, middle part string, then need on the high temperature furnace to make of heat resisting steel.

The metal platen that the furled blanket type fiber gives the clamp dog two ends is less than tapetum fibrosum, so that be enclosed in the tapetum fibrosum medium position.

Very useful identical with the lifting shape shelf brick of placing heating and original structure furnace lining of high temperature furnace, length extends, and is folded in the correct position that tapetum fibrosum gives clamp dog.

The furnace lining inner surface can be brushed the fire-resistant width of cloth and penetrate coating, forms the smooth dura mater of smooth surface, so that heat passes to workpiece, and few outside dissipated heat.

The utility model also is applicable to oil burner, gas furnace, because it does not need heating, the furled blanket type fiber gives does not have the shelf brick in the clamp dog.

Claims

1, a kind of industrial furnace entire fibre lining, it is characterized in that: give the extruding of clamp dog monoblock by the furled blanket type refractory fibre as body of wall, furnace roof and door pillar, door circle and forms, the furled blanket type refractory fibre gives clamp dog and is pressed from both sides to pass metal pull bar 12 the usefulness nut is fastening with metal platen 10, centre by multi-layer refractory fibre blanket 9, two ends and constitute.

2, industrial furnace entire fibre lining according to claim 1 is characterized in that: be folded in the appropriate location of folding the blanket layer in order to the shelf brick 13 of placing heating, the opposite side liner that the shelf brick is put by folded blanket layer central authorities has the tapetum fibrosum that is higher than shelf brick thickness.

3, industrial furnace entire fibre lining according to claim 1 and 2 is characterized in that: the size that the furled blanket type refractory fibre gives clamp dog body of wall, furnace roof and door pillar body, the door circle body with furnace lining respectively is corresponding.

4, industrial furnace entire fibre lining according to claim 1 and 2 is characterized in that: giving clamp dog as the furled blanket type fiber of shaft furnace body of wall is cylindrical shape, is circular configuration as the clamp dog that gives of furnace roof.

5, according to claim 1 or 4 described industrial furnace entire fibre linings, it is characterized in that: the metallic framework that the furled blanket type fiber gives clamp dog is connected by the metal connecting piece Type of Welding with the furnace shell metallic framework.

6, according to claim 1 or 4 or 5 described industrial furnace entire fibre linings, it is characterized in that: the furled blanket type fiber gives clamp dog and the furnace shell surrounding space is filled with cellucotton.