CN202170347U - Hot air flow control valve of iron-making blast furnace tuyere - Google Patents
Hot air flow control valve of iron-making blast furnace tuyere Download PDFInfo
- Publication number
- CN202170347U CN202170347U CN 201120226920 CN201120226920U CN202170347U CN 202170347 U CN202170347 U CN 202170347U CN 201120226920 CN201120226920 CN 201120226920 CN 201120226920 U CN201120226920 U CN 201120226920U CN 202170347 U CN202170347 U CN 202170347U
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- valve
- valve plate
- blast furnace
- air flow
- hot air
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Abstract
A hot air flow control valve of an iron-making blast furnace tuyere consists of a valve casing, a valve plate and transmission device assembly and a control device. The valve casing is composed of a steel flange seat, a flange type sealing sleeve and a combined seal. The valve casing is installed at the position of a tuyere straight pipe, the side of the straight pipe section is provided with a hole to install the valve casing, the steel flange seat and the flange type sealing sleeve are in cylindrical cantilever steel structures, and the combined seal is used for sealing a valve rod. The valve plate and transmission device assembly is composed of a valve plate, the valve rod, a trapezoid screw of a transmission device, a threaded transmission sleeve, a base and a hanger. The valve plate is round. The control device comprises a route control mechanism, an intelligent conversion element and a conditioning signal feedback system. The hot air flow control valve of the iron-making blast furnace tuyere has practical performance under the condition of high temperature, reduces resistance of flow, and is practicable in implementing of manufacturing process, compact in structure, convenient in adjustment, reliable in combination of a support sleeve and fireproof materials and good in high-temperature sealing performance.
Description
Affiliated technical field
The utility model belongs to Iron And Steel Industry equipment, particularly relates to ironmaking tuyere of blast furnace hot air flow variable valve.
Background technology
The blast-furnace tuyere device major part that Iron And Steel Industry iron-smelting blast furnace production is at present used does not have regulating valve.Because the blast-furnace tuyere device is the equipment to the blast furnace heat air delivery, hot blast temperature is up to 1280 ℃, and tuyere device is a steel work; Liner is a refractory materials, and hot blast is sent to blast furnace ironmaking through tuyere device, does not generally have regulating; Because technical difficulty is very big, adapt to the operating mode of HTHP, the material of variable valve and sealing structure design requirements are very high; Must guarantee safe and reliablely, technical difficulty is big.The development of this kind product relates to specialties such as machinery, engineering materials, gauge, robotization in addition, is comprehensive engineering.And do not have regulating valve, and can't regulate air quantity timely and effectively flows to improve the blast furnace hearth air quantity, and difficulty has obtained production status preferably.
Japan has produced a kind of " hot air flow electrovalve ", adopts the turnover panel that rotates to realize regulating, but bigger to the hot blast resistance.
The utility model content
The utility model aims to provide a kind of ironmaking tuyere of blast furnace hot air flow variable valve, and this valve can effectively be realized regulating, and is little to the consumption of hot blast resistance, reliable motion, long service life.
The utility model is realized: ironmaking tuyere of blast furnace hot air flow variable valve, form by valve casing, valve plate and transmission mechanism, gear.Described valve casing is made up of steel flange seat, flange form seal cartridge and combination sealing; Valve casing is installed in straight tube position, air port; Valve casing is installed in perforate in the straight length side, and steel flange seat, flange form seal cartridge are round shape Steel Cantilever structure, and combination sealing seals valve rod; Described valve plate and transmission mechanism by trapezoidal screw, screw thread drive sleeve, the base of valve plate, valve rod and transmission mechanism, hang and form, valve plate is shaped as circle; Gear comprises range controlling mechanism and intelligent conversion element, and gear has the conditioning signal feedback system.
Described transmission mechanism can adopt leading screw screw mechanism, forms leading screw screw mechanism by trapezoidal screw and screw thread drive sleeve.
The air port straight tube can roll welding by steel plate to carry out mechanical workout then and forms, and it is that corundum is not a stone that liner is selected refractory materials, and this refractory materials has lower thermal conductivity, guarantees its heat-blocking action, guarantees protection straight tube box hat, prevents that box hat from burning red destruction; Perforate of straight tube side and processing can be installed valve casing parts and valve plate.
The advantage of the utility model: (1) valve plate with guarantee that valve plate has certain axial displacement being connected of transmission mechanism, make valve plate and wear ring concentric to satisfy to work under high temperature (1400 ℃) operating mode, to guarantee the adjusting and the sealing property of valve; (2) valve plate thickness satisfies requirement of strength, selects high temperature material to guarantee work-ing life, and shaped design guarantees when realizing the valve standard-sized sheet, to reduce flow resistance, and the consideration ME is implemented feasible; (3) scantlings of the structure of valve is compact, and is easy to adjust, and support set and refractory materials combine reliable; (4) dual silit and graphite-structure sealing are adopted in the elevated-temperature seal design; (5) performance perameter of valve is calculated through science, like travelling speed, valve rod flexural deformation etc.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the variable valve general assembly drawing;
Fig. 3 is air port straight tube figure;
Among the figure: 1. valve casing, 2. valve plate and transmission mechanism, 3. gear, 4. air port straight tube, 5. steel flange seat; 6. flange form seal cartridge, 7. combination sealing, 8. valve plate, 9. valve rod, 10. trapezoidal screw; 11. the screw thread drive sleeve, 12. bases, 13. hang, 14. liners, 15. box hats.
Embodiment
Below in conjunction with accompanying drawing and embodiment utility model is further specified.
As shown in Figure 1: ironmaking tuyere of blast furnace hot air flow variable valve, form by valve casing parts 1, valve plate and transmission component 2, system 3.Valve casing parts 1 are made up of steel flange seat 5, flange form seal cartridge 6 and combination sealing 7; The valve casing parts are installed in tuyere device straight tube 4 positions; In the perforate of straight length side the valve casing parts can be installed, steel flange seat 5, flange form seal cartridge 6 are round shape Steel Cantilever structure.Flange form seal cartridge 6 plays location and the supporting role to valve plate 8, valve rod 9, and 7 pairs of valve rods 9 of combination sealing seal.
Shown in Fig. 2: valve plate and transmission component 2 by trapezoidal screw 10, screw thread drive sleeve 11, the base 12 of valve plate 8, valve rod 9 and transmission mechanism, hang 13 and form.Valve plate 8 is shaped as garden shape, and material is special high temperature steel, surperficial spray to cast refractory materials or use carbofrax material; Transmission mechanism adopts mechanical transmission (leading screw screw mechanism), forms leading screw screw mechanism by trapezoidal screw 10 and screw thread drive sleeve 11, and phonomoter is a power.
The hot air flow variable valve is installed in tuyere device straight tube 4 sides.
As shown in Figure 3: the manufacturing of air port straight tube 4, straight tube roll welding by steel plate to be carried out mechanical workout then and forms, and it is that corundum is not a stone that liner 14 is selected refractory materialss; This refractory materials has lower thermal conductivity; Guarantee its heat-blocking action, guarantee protection straight tube box hat 15, prevent that box hat from burning red destruction; Perforate of straight tube side and processing can be installed valve casing parts and valve plate.
Variable valve erection sequence: assemble valve plate 8, valve rod 9 earlier, the valve plate 8 after will assembling then, valve rod 9 and flange form seal cartridge 6 and combination sealing 7 prepackages; Mounting seat 12 again; Install at last transmission mechanism trapezoidal screw 10, hang 13 and phonomoter.
Utility model principle of work: as shown in Figure 2; Electric motor driving trapezoidal screw 10 rotation drives screw thread drive sleeve 11 (being fixed together with valve rod 9) and moves as horizontal linear, and valve rod 9 drives valve plate 8 and moves as horizontal linear; Change the intake stack incoming air area, thereby reach the purpose of regulating air quantity.
Claims (2)
1.
ironmaking tuyere of blast furnace hot air flow variable valve; Form by valve casing, valve plate and transmission mechanism, gear; It is characterized in that: valve casing is made up of steel flange seat, flange form seal cartridge and combination sealing, and valve casing is installed in straight tube position, air port, and valve casing is installed in perforate in the straight length side; Steel flange seat, flange form seal cartridge are round shape Steel Cantilever structure, and combination sealing seals valve rod; Valve plate and transmission mechanism by trapezoidal screw, screw thread drive sleeve, the base of valve plate, valve rod and transmission mechanism, hang and form, valve plate is shaped as circle; Gear comprises range controlling mechanism and intelligent conversion element, and gear has the conditioning signal feedback system.
2.
ironmaking tuyere of blast furnace hot air flow variable valve according to claim 1 is characterized in that: transmission mechanism adopts leading screw screw mechanism, forms leading screw screw mechanism by trapezoidal screw and screw thread drive sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120226920 CN202170347U (en) | 2011-06-30 | 2011-06-30 | Hot air flow control valve of iron-making blast furnace tuyere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120226920 CN202170347U (en) | 2011-06-30 | 2011-06-30 | Hot air flow control valve of iron-making blast furnace tuyere |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202170347U true CN202170347U (en) | 2012-03-21 |
Family
ID=45828548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120226920 Expired - Lifetime CN202170347U (en) | 2011-06-30 | 2011-06-30 | Hot air flow control valve of iron-making blast furnace tuyere |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202170347U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777501A (en) * | 2021-07-26 | 2022-07-22 | 安徽金禾软件股份有限公司 | Automatic adjusting and controlling device for blast furnace tuyere |
-
2011
- 2011-06-30 CN CN 201120226920 patent/CN202170347U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777501A (en) * | 2021-07-26 | 2022-07-22 | 安徽金禾软件股份有限公司 | Automatic adjusting and controlling device for blast furnace tuyere |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120321 |