CN201057498Y - Diaphragm type furnace lid structure - Google Patents
Diaphragm type furnace lid structure Download PDFInfo
- Publication number
- CN201057498Y CN201057498Y CNU2007201696504U CN200720169650U CN201057498Y CN 201057498 Y CN201057498 Y CN 201057498Y CN U2007201696504 U CNU2007201696504 U CN U2007201696504U CN 200720169650 U CN200720169650 U CN 200720169650U CN 201057498 Y CN201057498 Y CN 201057498Y
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- membrane type
- bell
- water
- type bell
- hollow pipe
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Abstract
The utility model discloses film-type furnace cover structure, which comprises a shell of a furnace cover, which is emphasized that: the shell of the furnace cover consists of a plurality of hollow channel and a plurality of plate body. The plate body is welded among the hollow channels, which is placed with cooling liquid. The utility model has the advantages of light ash deposition, good sealing property, long service life, energy saving, light weight, etc. The film-type furnace covers replace fireproof brick setting furnace covers or water-jacked furnace cover, and not only overcome the defects of serious ash deposition and short service life of the fireproof brick setting furnace covers but also avoid disadvantages of large energy consumption, short service life, etc of the water-jacked furnace cover.
Description
Technical field
The utility model relates to a kind of bell, more specifically relates to a kind of membrane type bell that is installed between top blast stove and the waste heat boiler.
Background technology
The flue gas that needs to cool off the top blast stove in present technology adopts fire-resistant brick bell or Copper Water Jacket water cooled cover to realize finishing usually between top blast stove and waste heat boiler.Promptly waste heat boiler is set usually at top blast stove rear portion, the high-temperature flue gas that goes out with cooling top blast fire grate, and between top blast stove and bell, leave certain space, satisfy the thermal expansion between top blast stove and the waste heat boiler.The technical problem that solves mainly comprises: 1, flue gas sealing, and the interface between top blast stove, membrane type bell and the waste heat boiler will prevent that high-temperature flue gas from leaking (1200-1400 ℃ of cigarette temperature), entering of cold air improves operating environment, prevents that waste heat boiler from producing corrosion; 2, alleviate dust stratification, avoid frequent blowing out, artificial deashing; 3, on bell, reserve gun slot, charge door, insulation burner mouth and exhanst gas outlet etc.; 4, bell can bear normal operation and maintenance load.
Also there are a lot of shortcomings in existing fire-resistant brick bell or Copper Water Jacket water cooled cover except high temperature resistant and satisfy substantially the top blast stove ordinary production, mainly show:
1, life-span weak point, the Copper Water Jacket water cooled cover life-span is generally 1-2;
2, to build difficulty by laying bricks or stones big for refractory material, and the life-span is short, and the brick bell life-span also is generally 1-2;
3, weight is big, and the top blast stove is produced eccentric load, makes the vibration of top blast stove strengthen;
4, operating environment is poor, and the slit is bigger between top blast stove and bell, and flue gas is often overflowed;
5, waste energy, the heat that bell partially absorbs can not obtain recycling usually.
The utility model content
Therefore, the purpose of this utility model is to provide a kind of membrane type bell structure, and it fully reclaims the heat in the flue gas, energy savings, and equipment is more corrosion-resistant simultaneously, and the life-span is long, the above-mentioned shortcoming of having avoided aforementioned existing bell equipment to exist.
Correspondingly, the utility model provides a kind of membrane type bell structure, and this membrane type bell structure includes the bell shell, and it focuses on:
This bell shell is made up of several hollow pipes and several plate bodys, and this plate body is welded between this hollow pipe, is equipped with cooling liquid in this hollow pipe.
Wherein, this cooling liquid is a water, and this plate body is a steel plate.
Also be provided with cavity between this hollow pipe and the plate body, be equipped with castable refractory in this cavity.
This hollow pipe one end is an influent side, and this influent side is connected with in turn and distributes header, water circulating pump and drum, and the other end of this hollow pipe is a water outlet side, and this water outlet side is connected with steam collecting container, drum in turn.
The arranged outside of this bell shell has buckstay, and this hollow pipe and/or plate body are fixed on this buckstay.
The outside of this bell shell also is coated with heat-insulation layer.
This membrane type petticoat pipe structure one side is connected with the top blast stove, and opposite side is connected with waste heat boiler.
Advantages such as membrane type bell described in the utility model has that dust stratification is light, good airproof performance, life-span are long, energy-conservation, in light weight.More specifically, its main beneficial effect is:
1, the membrane type bell replaces fire-resistant brick bell or water-jacket typ bell, overcome the shortcoming that fire-resistant brick bell dust stratification is serious, the life-span is short, drawback such as avoided that water-jacket typ bell energy consumption is big, the life-span is short, advantage such as have that dust stratification is light, good airproof performance, life-span are long, energy-conservation.
2, fire-resistant brick bell and Copper Water Jacket water cooled cover life-span only are 1-2, and the membrane type bell life-span is more than 10 years; The heat that water jacket bell cooled flue gas absorbs is taken away by cooling water, does not obtain utilizing, and the identical heat that the membrane type bell reclaims becomes the utilizable middle saturated vapor of pressing, and can be used for generating or heat supply, energy savings.
Consulting the accompanying drawing of accompanying description the utility model embodiment, is very easily with describing the utility model afterwards in detail.It is to restriction of the present utility model that accompanying drawing can not be understood as with relevant description, and characteristics of the present utility model are limited in claims.
Description of drawings
Described with reference to accompanying drawing according to embodiment described in the utility model, wherein:
Figure 1 shows that the main TV structure schematic diagram of embodiment membrane type bell structure described in the utility model;
Figure 2 shows that the plan structure schematic diagram of embodiment membrane type bell structure described in the utility model;
Figure 3 shows that the sectional structure schematic diagram of being looked from the A-A direction among Fig. 2;
Figure 4 shows that the membrane wall structure detail drawing of embodiment membrane type bell structure described in the utility model;
Figure 5 shows that the membrane wall syndeton detail drawing of embodiment membrane type bell structure described in the utility model.
The specific embodiment
The utility model embodiment provides a kind of membrane type bell structure, also can be referred to as top blast stove membrane wall bonnet, as shown in the figure, Figure 1 shows that the main TV structure schematic diagram of embodiment membrane type bell structure 10 described in the utility model; Figure 2 shows that the plan structure schematic diagram of embodiment membrane type bell structure 10 described in the utility model; Figure 3 shows that the sectional structure schematic diagram of being looked from the A-A direction among Fig. 2.These membrane type bell structure 10 integral body both can present planar structure as shown in the figure, perhaps also can be the eccentric cone structure.The heating surface 101 of the downside of the described membrane type bell of present embodiment structure 10 is connected with the fume emission mouth of top blast stove 20, opposite side is provided with outlet flue 15 and is connected with the waste heat boiler (not shown) by waste heat boiler uptake flue 100, this with the outside connection mode and being connected of existing bell of top blast stove 20, waste heat boiler there is no difference.
The crucial part of the utility model embodiment is: the cooling device that the main body of membrane type bell 10 is made up of fin panel casing, the main body of this bell, the shell that is bell is this film water cold wall structure, this film water cold wall structure is made up of several hollow water pipes 111 and several steel plates 112, promptly be to be welded to each other the hermetic top blast stove heating surface that forms by hollow pipe-steel plate-hollow pipe, be equipped with water in the hollow water pipe 111, also be provided with cavity between this hollow pipe and the plate body, be equipped with castable refractory 113 in this cavity, shown in Fig. 4,5.Film water cold wall structure hollow core water pipe 111 specifications are Φ 38X5, and material is 20G, and the thickness of steel plate 112.0 is 5mm, and material is Q235-A.Be illustrated in figure 4 as the membrane wall structure enlarged detail of embodiment membrane type bell structure 10 described in the utility model; Figure 5 shows that the membrane wall syndeton enlarged detail of embodiment membrane type bell structure 10 described in the utility model.Membrane type bell 10 can be provided with independently water circulation system, thereby becomes the waste heat boiler of a platform independent.Certainly also can with the shared water circulation system of rear portion waste heat boiler (not shown), become the part of whole waste heat boiler.
The top blast stove is fixed smelting furnace, flue gas is discharged from top, membrane type bell 10 is installed on the top of top blast stove 20, leave gun slot 12, charge door 13, insulation burner mouth 11 and exhanst gas outlet 15 etc. on the membrane type bell 10, exhanst gas outlet is provided with the flue shutter 16 of water-cooled, flue shutter 16 is placed on outside the stove during normal running, when having an accident as rear portion waste heat boiler generation pipe explosion accident, flue shutter 16 is put into stove, the top blast kiln gas discharges through the accident flue, the overall structure of the setting of this accident flue except that the flue tube wall construction is prior art, do not repeat them here.Membrane type bell 10 and top blast stove 20 leave the gap of 7mm, the filling high-temperature sealing material, and membrane type bell 10 and waste heat boiler leave the gap of 300mm, satisfy the requirement of placing flue shutter 16 and expansion gap, and bell 10 weight act on the top blast stove.
In addition, the membrane type bell adopts forced circulation, and its principle is, boiler water enters water circulating pump by the drum down-comer, stove water enters the distribution header 4 of bell after pressurized in circulating pump, as shown in Figure 2, enters respectively and respectively organizes fin panel casing, stove water becomes steam water interface after being heated by flue gas, be pooled to steam collecting container, turn back to drum, carbonated drink obtains separating in drum, steam is drawn drum and is gone the user, and water is stayed and continued to participate in circulation in the drum.Drum is drawn and returned to stove water from drum, finishes a circulation, and the resistance of closed circuit is provided by water circulating pump.These circulatory systems are for present technique field those of ordinary skill, are easy to realize, do not repeat them here.
In addition, it should be noted that, the heating surface 101 of present embodiment is made up of first heating surface 21, second heating surface 22, the 3rd heating surface, 23, the 4th heating surface 24, so, correspondingly water circulation system is divided into four autonomous systems, but when reality is implemented, also the heating surface of present embodiment can be divided into other quantity, as 3,5, the heating surface and the circulatory system are simply revised and made up, be very easy.
Outside H250 * 175 * 7 * 11 of adopting of fin panel casing are as buckstay 6, adopt guide plate to be connected between buckstay 6 and the membrane type bell 10, establish buckstay one every 2m, the effect of buckstay 6 is the shapes that keep membrane wall, make membrane wall no matter in transportation, still indeformable in the running, lay the 15mm steel plate on the buckstay, to satisfy the normal operation and maintenance of top blast stove.There is heat-insulation layer the membrane wall outside, and insulation layer thickness is 200mm, and insulation material adopts the magnesia fibrofelt of alumina silicate.
Adopt between membrane type bell 10 and the waste heat boiler to be flexible coupling, membrane type bell 10 expands with top blast stove 20.The dilatation joint of membrane type bell 10 and waste heat boiler adopts high temperature resistant nonmetallic materials sealing, and its effect is the thermal expansion between compensation bell and the waste heat boiler, and dilatation joint is airtight as much as possible, reduces the inleakage of dilatation joint.
The described membrane type bell of present embodiment is a fin panel casing, and heating surface is smooth and temperature is low, only is 300 ℃, compares with fire-resistant brick bell, is difficult for dust stratification.
The membrane type bell is a film water cold wall structure, and good airproof performance does not leak cigarette.
The membrane type bell is the part of boiler, the operating pressure height, and the bell inwall is higher than the dew-point temperature of sulfur-containing smoke gas, does not corrode, and the life-span is long.
The membrane type bell produces middle pressure steam, can be used for generating and produce and live use.
The utility model described herein is easy to change on specifically described content basis, revises and/or replenishes, and is understandable that all these change, revise and/or additional all being included in the spirit and scope of foregoing description of the present utility model.
Claims (7)
1. membrane type bell structure, this membrane type bell structure includes the bell shell, it is characterized in that:
This bell shell is made up of several hollow pipes and several plate bodys, and this plate body is welded between this hollow pipe, is equipped with cooling liquid in this hollow pipe.
2. membrane type bell structure as claimed in claim 1, wherein, this cooling liquid is a water, this plate body is a steel plate.
3. membrane type bell structure as claimed in claim 1 wherein, also is provided with cavity between this hollow pipe and the plate body, be equipped with castable refractory in this cavity.
4. membrane type bell structure as claimed in claim 2, wherein, this hollow pipe one end is an influent side, and this influent side is connected with in turn and distributes header, water circulating pump and drum, the other end of this hollow pipe is a water outlet side, and this water outlet side is connected with steam collecting container, drum in turn.
5. membrane type bell structure as claimed in claim 1, wherein, the arranged outside of this bell shell has buckstay, and this hollow pipe and/or plate body are fixed on this buckstay.
6. membrane type bell structure as claimed in claim 1, wherein, the outside of this bell shell also is coated with heat-insulation layer.
7. membrane type bell structure as claimed in claim 1, wherein, this membrane type petticoat pipe structure one side is connected with the top blast stove, and opposite side is connected with waste heat boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201696504U CN201057498Y (en) | 2007-07-10 | 2007-07-10 | Diaphragm type furnace lid structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201696504U CN201057498Y (en) | 2007-07-10 | 2007-07-10 | Diaphragm type furnace lid structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201057498Y true CN201057498Y (en) | 2008-05-07 |
Family
ID=39426340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201696504U Expired - Lifetime CN201057498Y (en) | 2007-07-10 | 2007-07-10 | Diaphragm type furnace lid structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201057498Y (en) |
-
2007
- 2007-07-10 CN CNU2007201696504U patent/CN201057498Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080507 |
|
| CX01 | Expiry of patent term |