CN102353251A - Furnace pipe of rotary furnace - Google Patents
Furnace pipe of rotary furnace Download PDFInfo
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- CN102353251A CN102353251A CN2011102206804A CN201110220680A CN102353251A CN 102353251 A CN102353251 A CN 102353251A CN 2011102206804 A CN2011102206804 A CN 2011102206804A CN 201110220680 A CN201110220680 A CN 201110220680A CN 102353251 A CN102353251 A CN 102353251A
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- pipe
- furnace
- planet
- high temperature
- boiler tube
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Abstract
The invention discloses a furnace pipe of a rotary pipe furnace. The furnace tube is characterized in that a feed pipe, a discharge pipe and a middle high-temperature furnace pipe are coaxially arranged so as to be connected into a whole through uniformly distributed fasteners; the middle high-temperature furnace pipe is composed of a plurality of planetary pipes which are circumferentially uniformly distributed, and the cross sections of the planetary pipes are round, square or fan-shaped; and a first middle flange disk and a second middle flange disk are provided with through holes the number of which is equal to that of the planet pipes, and the through holes are matched with the planet pipes. The furnace pipe of the rotary pipe furnace provided by the invention not only can ensure complete reaction of materials, but also has the advantages of high yield per furnace, high thermal energy utilization rate and lower unit consumption.
Description
Technical field
The present invention relates to a kind of boiler tube that is applicable to metallurgy industry with rotary furnace.
Background technology
At present metallurgy industry is used to the rotary furnace that reduces, calcine; Like APT (or para-molybdic acid ammonia) calcining furnace, tungsten oxide (molybdenum) reduction furnace etc.; All adopt the feed pipe of the same diameter of coaxial arrangement, middle high temperature furnace pipe, discharge nozzle to form boiler tube,, adopt coaxial tilt to arrange usually for ease of charging and discharging; Material is concentrated input through feed pipe; Material slowly turns round, turns over boiler tube, in middle high temperature furnace pipe, reaction atmosphere, certain high temperature accomplishes reduction down or calcine, again from the discharge nozzle discharging.Because material concentrates on narrow of boiler tube bottom mostly, can not fully contact with reaction atmosphere with the stove revolution, in turning over, certain reunion caking is arranged.Simultaneously, receive that radian, technological requirement etc. influence in the material gravity, boiler tube, material concentrates on the boiler tube bottom, and highly only account for the boiler tube diameter 5% in, the separate unit rotary furnace yields poorly, the heat energy utilization rate is low, energy consumption is high, causes production cost high, low in economic efficiency.
Summary of the invention
The present invention is directed to above-mentioned deficiency, a kind of boiler tube that can guarantee the revolution pipe furnace that material fully reacts, single furnace output high, the heat energy utilization rate is high, unit consumption is lower is provided.
For realizing the object of the invention; The boiler tube that the present invention turns round pipe furnace comprises the feed pipe that has the feed end ring flange; The discharge nozzle that has the discharge end ring flange; Two ends are fixed with the middle high temperature furnace pipe of the first spacer flanger dish, the second spacer flanger dish respectively, place between the feed end ring flange and the first spacer flanger dish respectively, the first high temperature pad and the second high temperature pad between the second spacer flanger dish and discharge end ring flange; Said feed pipe, discharge nozzle, middle high temperature furnace pipe coaxial arrangement with the first high temperature pad, the second high temperature pad, are connected as a single entity through the securing member that is uniformly distributed with; It is characterized in that: high temperature furnace pipe is made up of the planet pipe of some circumference uniform distributions in the middle of said; The first spacer flanger dish, the second spacer flanger dish are provided with through hole identical with planet pipe quantity and that match.
Said planet tube section is rounded, square or fan-shaped.
When said planet tube section was fan-shaped, adjacent tube wall united two into one and forms some cross sections and be fan-shaped boiler tube chamber.
As improvement, said some planet pipes are away from inwall place, the outer diameter of a circle D of boiler tube axis
2Be slightly larger than the feed pipe inside diameter D
1, and be slightly less than the inside diameter D of discharge nozzle
3
For ease of making, installing, according to revolution pipe furnace overall dimensions, said several planet pipes are 2 ~ 9.
Because middle the high temperature furnace pipe that is positioned at high temperature reaction zone is made up of the planet pipe of some circumference uniform distributions, material is concentrated through feed pipe and is imported, and is distributed in each planet pipe of middle high temperature furnace pipe again; Material slowly turns round with whole boiler tube on one side, similar revolution, planet pipe in overturn on one side; Similar rotation; Reaction atmosphere also can evenly spread in each planet pipe, makes material fully contact with reaction atmosphere, and reaction is accomplished and concentrated from the discharge nozzle discharging.With respect to prior art, material less in the planet pipe can contact with more reaction atmosphere, and reduction or calcining are more abundant, and product quality is higher.Though material still concentrates on each planet pipe bottom, its height can account for more than 15% of boiler tube diameter, makes single furnace output improve greatly; And in whole boiler tube turning course, each planet pipe revolution thermally equivalent maximally utilises heat energy.Therefore, adopt the boiler tube of revolution pipe furnace of the present invention, can guarantee that material fully reacts, single furnace output high, the heat energy utilization rate is high, cost reduces, economic benefit improves.
The feed pipe inside diameter D
1, the planet pipe is away from inwall place, the outer diameter of a circle D of boiler tube axis
2, the discharge nozzle inside diameter D
3Can be identical, but satisfy D
1Be slightly less than D
2, D
2Be slightly less than D
3, can make the material smoothly whole boiler tube of turnover and putty not.
Description of drawings
Fig. 1 is a structural representation of the present invention, wherein:
1, feed pipe; 2, feed end flange; 3, the first high temperature pad; 4, first spacer flanger; High temperature furnace pipe in the middle of 5; 51, planet pipe; 6, second spacer flanger; 7, the second high temperature pad; 8, discharge end flange; 9, discharge nozzle; 10, boiler tube axis; 11, securing member.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the A-A cutaway view of Fig. 1 among the embodiment 1, and wherein planet pipe 51 is 9, and the cross section is rounded.
Fig. 4 is the A-A cutaway view of Fig. 1 among the embodiment 2, and wherein planet pipe 51 is 9, and the cross section is square.
Fig. 5 is the A-A cutaway view of Fig. 1 among the embodiment 3, and wherein planet pipe 51 is 6, and it is fan-shaped that the cross section is.
Fig. 6 is the A-A cutaway view of the adjacent tube wall of embodiment 4 fan-shaped planet pipes Fig. 1 when uniting two into one, totally 9 little fan-shaped chambeies.
Fig. 7 is the B-B enlarged diagram of Fig. 1.
Fig. 8 is the C-C enlarged diagram of Fig. 1.
The specific embodiment
Below in conjunction with specific embodiment and accompanying drawing, the present invention is done further explanation.
Embodiment 1: the boiler tube of revolution pipe furnace of the present invention; Like Fig. 1, shown in 2; Comprise the feed pipe 1 that has feed end flange 2; The discharge nozzle 9 that has discharge end flange 8, two ends are fixed with the middle high temperature furnace pipe 5 of first spacer flanger 4, second spacer flanger 6 respectively, place the first high temperature pad 3 and the second high temperature pad 7 of 8 of 4 of the feed end flange 2 and first spacer flangers, second spacer flanger 6 and discharge end flanges respectively; Feed pipe 1, discharge nozzle 9, middle high temperature furnace pipe 5 coaxial arrangement with the first high temperature pad 3, the second high temperature pad 7, are connected as a single entity through the securing member 11 that is uniformly distributed with.Axis horizontal or inclination, it is better to tilt.(following examples are all identical)
Middle high temperature furnace pipe 5 is made up of 9 planet pipes 51 that be uniformly distributed along the circumference, that the cross section is rounded, and the A-A cutaway view is as shown in Figure 3.Be provided with 5 through holes 41 that match with planet pipe 51 equally on first spacer flanger 4, second spacer flanger 6, promptly planet pipe 51 is fixed in the manhole 41.Be to guarantee the boiler tube sealing, planet pipe 51 and first spacer flanger 4,6 of second spacer flangers can adopt interference, but preferably gluing or welding manner.9 planet pipes 51 are away from inwall place, the outer diameter of a circle of the boiler tube axis 10 of revolution pipe furnace, promptly 9 planet pipes 51 belong to diameter of a circle D away from the outer inwall of boiler tube axis 10
2Be slightly larger than the inside diameter D of feed pipe 1
1, and be slightly less than the inside diameter D of discharge nozzle 9
3Make things convenient for material to rely on self gravitation and/or feed arrangement to concentrate input like this, be distributed to again in each planet pipe 51, concentrate from discharge nozzle 9 dischargings again, and the putty phenomenon does not take place through feed pipe 1.
When the rotary furnace plumber did, material was realized the planet pipe 51 from feed pipe 1, middle high temperature furnace pipe, " concentrating---dispersion---to concentrate " conveying circuit of discharge nozzle 9, and material is at reaction zone---evenly distribute in the middle high temperature furnace pipeline section; Both with whole boiler tube revolution, the number of times of rotation in the planet pipe, and materials overturning again was more; Material fully contacts with more reaction atmosphere like this, no reunion caking phenomenon, and reduction or calcining are more abundant; Product quality is higher, and output is bigger.(following examples are identical)
With boiler tube diameter of phi 420mm, boiler tube rotating speed 8 commentaries on classics/min in the prior art; And the diameter of 9 planet pipes of the present invention is 130 mm; Circumcircle diameter 422mm, whole boiler tube rotating speed 8 commentaries on classics/min are example; Also in production cycle of original production tungsten powder, prior art and contrast of the present invention are as shown in table 1 at same tungsten oxide.
Table 1
Embodiment 2: middle high temperature furnace pipe 5 is made up of 9 planet pipes 51 that be uniformly distributed along the circumference, that the cross section is square, and the A-A cutaway view is seen Fig. 4.Be provided with 9 square through holes 41 that match with planet pipe 51 equally on first spacer flanger 4, second spacer flanger 6, promptly planet pipe 51 is fixed in the square through hole 41.9 planet pipes 51 are away from inwall place, the outer diameter of a circle of the boiler tube axis 10 of revolution pipe furnace, promptly 9 planet pipes 51 belong to diameter of a circle D away from the outer inwall of boiler tube axis 10
2Be slightly larger than the inside diameter D of feed pipe 1
1, and be slightly less than the inside diameter D of discharge nozzle 9
3, make things convenient for material to pass through feed pipe like this and concentrate input, be distributed to again in each planet pipe, concentrate from the discharge nozzle discharging again.Wherein planet pipe 51 can also be arranged by half-twist, or arranges with other angles.
Embodiment 3: middle high temperature furnace pipe 5 is uniformly distributed along the circumference by 6, cross section is fan-shaped planet pipe 51 and forms, and the A-A cutaway view is seen Fig. 5.Be provided with 6 fan-shaped pylones 41 that match with planet pipe 51 equally on first spacer flanger 4, second spacer flanger 6, promptly planet pipe 51 is fixed in the fan-shaped pylone 41.6 planet pipes 51 are away from inwall place, the outer diameter of a circle of the boiler tube axis 10 of revolution pipe furnace, promptly 6 planet pipes 51 belong to diameter of a circle D away from the outer inwall of boiler tube axis 10
2Be slightly larger than the inside diameter D of feed pipe 1
1, and be slightly less than the inside diameter D of discharge nozzle 9
3, make things convenient for material to pass through feed pipe like this and concentrate input, be distributed to again in each planet pipe, concentrate from the discharge nozzle discharging again.
Embodiment 4: when the planet pipe 51 of 9 sector crosssections, when adjacent tube wall unites two into one, form 9 cross sections and be fan-shaped boiler tube chamber 51, the A-A cutaway view is seen Fig. 6.At this moment, be provided with 9 fan-shaped or manholes 41 that are complementary with fan-shaped boiler tube chamber 51 on the ring flange 4 equally, the middle high temperature furnace pipe that fan-shaped boiler tube chamber 51 is formed is fixed on the ring flange 4.These 9 through holes 41 are away from place, the outer diameter of a circle of the boiler tube axis 11 of revolution pipe furnace, the i.e. circumscribed diameter D of 9 through holes 41
2, be slightly larger than the aperture D of feed pipe 1
1, and be slightly less than the aperture D of discharge nozzle 9
3, make things convenient for material to pass through feed pipe like this and concentrate input, be distributed to again in each planet pipe, concentrate from the discharge nozzle discharging again.
Planet pipe quantity is no less than 2, makes, needs are installed with being convenient to based on revolution pipe furnace overall dimensions, preferably is no more than 9.
Claims (5)
1. boiler tube that turns round pipe furnace; Comprise the feed pipe (1) that has feed end flange (2); The discharge nozzle (9) that has discharge end flange (8); Two ends are fixed with the middle high temperature furnace pipe (5) of first spacer flanger (4), second spacer flanger (6) respectively, place between feed end flange (2) and first spacer flanger (4) respectively, the first high temperature pad (3) and the second high temperature pad (7) between second spacer flanger (6) and discharge end flange (8); Said feed pipe (1), discharge nozzle (9), middle high temperature furnace pipe (5) coaxial arrangement with the first high temperature pad (3), the second high temperature pad (7), are connected as a single entity through the securing member (11) that is uniformly distributed with; It is characterized in that: high temperature furnace pipe (5) is made up of the planet pipe (51) of several circumference uniform distributions in the middle of said; Said first spacer flanger (4), second spacer flanger (6) are provided with through hole (41) identical with said planet pipe (51) quantity and that match.
2. the boiler tube of revolution pipe furnace according to claim 1 is characterized in that: said planet pipe (51) cross section is rounded, square or fan-shaped.
3. the boiler tube of revolution pipe furnace according to claim 2 is characterized in that: when said planet pipe (51) cross section was fan-shaped, adjacent tube wall united two into one and forms several cross sections and be fan-shaped boiler tube chamber.
4. according to the boiler tube of the described revolution pipe furnace of one of claim 1 to 3, it is characterized in that: said some planet pipes (51) are away from inwall place, the outer diameter of a circle D of boiler tube axis (10)
2Be slightly larger than the inside diameter D 1 of feed pipe (1) and be slightly less than the inside diameter D 3 of discharge nozzle (9).
5. according to the boiler tube of claim 1 or 2 or 3 described revolution pipe furnaces, it is characterized in that: said several planet pipes (51) are 2 ~ 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102206804A CN102353251A (en) | 2011-08-03 | 2011-08-03 | Furnace pipe of rotary furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102206804A CN102353251A (en) | 2011-08-03 | 2011-08-03 | Furnace pipe of rotary furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102353251A true CN102353251A (en) | 2012-02-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102206804A Pending CN102353251A (en) | 2011-08-03 | 2011-08-03 | Furnace pipe of rotary furnace |
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|---|---|
| CN (1) | CN102353251A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2869849A (en) * | 1954-05-17 | 1959-01-20 | Lafarge Ciments Sa | Rotary furnace |
| JP2001311583A (en) * | 2000-02-24 | 2001-11-09 | Ishikawajima Harima Heavy Ind Co Ltd | Rotary kiln |
| CN101149214A (en) * | 2006-09-20 | 2008-03-26 | 中国石油化工股份有限公司 | Rotary tube type roasting furnace |
| JP2008116190A (en) * | 2006-10-13 | 2008-05-22 | Oji Paper Co Ltd | Rotary kiln furnace, and heat-treatment apparatus provided with rotary kiln furnace |
| CN202188746U (en) * | 2011-08-03 | 2012-04-11 | 株洲硬质合金集团有限公司 | Furnace tube of rotary furnace |
-
2011
- 2011-08-03 CN CN2011102206804A patent/CN102353251A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2869849A (en) * | 1954-05-17 | 1959-01-20 | Lafarge Ciments Sa | Rotary furnace |
| JP2001311583A (en) * | 2000-02-24 | 2001-11-09 | Ishikawajima Harima Heavy Ind Co Ltd | Rotary kiln |
| CN101149214A (en) * | 2006-09-20 | 2008-03-26 | 中国石油化工股份有限公司 | Rotary tube type roasting furnace |
| JP2008116190A (en) * | 2006-10-13 | 2008-05-22 | Oji Paper Co Ltd | Rotary kiln furnace, and heat-treatment apparatus provided with rotary kiln furnace |
| CN202188746U (en) * | 2011-08-03 | 2012-04-11 | 株洲硬质合金集团有限公司 | Furnace tube of rotary furnace |
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Application publication date: 20120215 |