CN106440665B - A powder suspension drying and combustion-supporting device and process - Google Patents
A powder suspension drying and combustion-supporting device and process Download PDFInfo
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- CN106440665B CN106440665B CN201610936498.1A CN201610936498A CN106440665B CN 106440665 B CN106440665 B CN 106440665B CN 201610936498 A CN201610936498 A CN 201610936498A CN 106440665 B CN106440665 B CN 106440665B
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- 238000001035 drying Methods 0.000 title claims abstract description 39
- 239000000843 powder Substances 0.000 title claims abstract description 27
- 239000000725 suspension Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 73
- 239000010959 steel Substances 0.000 claims description 73
- 230000005484 gravity Effects 0.000 claims description 6
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
- F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
- F26B3/082—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed arrangements of devices for distributing fluidising gas, e.g. grids, nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
一种粉料悬浮干燥与助燃装置及工艺，装置包括空气环管、筒体、空气支管、风机，风机安装在筒体的外部，空气环管环绕在筒体的外周，在空气环管与筒体之间安装有若干个空气支管，空气支管的一端伸入到筒体中并与筒体焊接固定，另一端连接空气环管，空气环管通过阀门连接风机。本发明的有益效果是：1)可以实现提高筒体的粉料干燥与燃烧效率，缩短干燥与燃烧时间，降低能耗。2)可以检修维护方便，空气支管的更换和检修不影响整个装置正常运行。3)采用两台变频风机，既可以同时工作,也可以在一台风机出现故障时，另外一台风机仍然可以维持整个装置运行。4)本发明还能够适应筒体加热后径向膨胀的尺寸变化。
A powder suspension drying and combustion-supporting device and process, the device comprises an air ring pipe, a cylinder body, an air branch pipe, and a fan, the fan is installed outside the cylinder body, the air ring pipe surrounds the outer circumference of the cylinder body, and the air ring pipe A number of air branch pipes are installed between the bodies, one end of the air branch pipe extends into the cylinder body and is welded and fixed with the cylinder body, and the other end is connected to an air ring pipe, which is connected to the fan through a valve. The beneficial effects of the invention are as follows: 1) It can improve the drying and burning efficiency of the powder material of the cylinder, shorten the drying and burning time, and reduce the energy consumption. 2) It can be easily repaired and maintained, and the replacement and maintenance of the air branch pipe will not affect the normal operation of the entire device. 3) Using two variable frequency fans, it can work at the same time, and when one fan fails, the other fan can still maintain the operation of the whole device. 4) The present invention can also adapt to the dimensional change of the radial expansion of the cylindrical body after heating.
Description
Technical Field
The invention relates to a powder drying process, in particular to the technical field of powder suspension drying in a cylinder.
Background
Traditional powder drying generally adopts the cylinder mode, and drying gas gets into from cylinder one end, mixes the drying in cylinder and commodity circulation, and the material and the gas after the drying are dispatched at the cylinder other end. On one hand, the drying mode has poor drying effect, a dead zone is easily formed at the bottom of the cylinder, and on the other hand, the energy consumption is high, and a large amount of drying air needs to be consumed. And the overhaul and maintenance are troublesome in the adaptation process.
Therefore, the powder suspension drying device needs to be invented, the drying efficiency of the powder can be improved, the energy consumption in the drying process is reduced, the overhaul and the maintenance are convenient, and the radial size change of the cylinder after the cylinder is heated and expanded can be adapted.
Disclosure of Invention
The invention aims to provide a powder suspension drying and combustion-supporting device and a process, which are used for continuously drying powder materials, if the suspension powder materials are flammable, the suspension powder materials can be combusted when reaching a certain temperature after being mixed with air, the materials enter a cylinder body from an inlet end, air branch pipes arranged along the circumferential direction of the cylinder body continuously provide drying air for the materials along with the rotation of the cylinder body, the powder materials are lifted by the drying air to reach a suspension state, and the drying and combustion efficiency of the powder materials is improved. And the joint of the air branch pipe adopts interference fit to absorb the radial expansion of the cylinder body generated after the cylinder body is heated.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a powder suspension drying and combustion-supporting device, includes air ring pipe, barrel, air branch pipe, fan, and the fan is installed in the outside of barrel, and the air ring pipe encircles the periphery at the barrel, installs a plurality of air branch pipe between air ring pipe and barrel, and the one end of air branch pipe stretches into in the barrel and with barrel welded fastening, the air ring pipe is connected to the other end, and the air ring pipe passes through the valve and connects the fan.
The air branch pipe comprises a steel pipe a, a steel pipe b, a sliding plug and a cover plate, the steel pipe a and the steel pipe b are connected in an interference fit mode, the upper end of the steel pipe a penetrates through the air ring pipe, the top end of the steel pipe a is sealed through the cover plate, the steel pipe a is communicated with the air ring pipe, the bottom end of the steel pipe b is sealed, an air outlet is formed in the side face of the bottom of the steel pipe b, and the sliding plug is arranged inside the steel pipe a and the steel pipe b.
The sliding plug comprises a supporting rod, a rib plate and a piston cylinder, the supporting rod is arranged in the middle of the piston cylinder and is fixedly connected with the piston cylinder through the rib plate, the piston cylinder is located on one side of the steel pipe b, and the supporting rod is located on one side of the steel pipe a.
A powder suspension drying and combustion-supporting process of a powder suspension drying and combustion-supporting device comprises the following specific steps:
the air ring pipe and the air branch pipes rotate along the cylinder body in the clockwise direction, the fan blows air to each air branch pipe through the air ring pipe, when the air branch pipes rotate to the lower part along with the cylinder body, the sliding plugs slide towards the steel pipe a under the action of gravity, the supporting rods fall on the end part of the steel pipe a, at the moment, the air outlet at the end part of the steel pipe b is completely opened, and air is introduced into the cylinder body from the air ring pipe, the steel pipe a, the piston cylinder, the steel pipe b and the air outlet at the end part of the steel pipe b to lift materials;
when the air branch pipe rotates to the upper part or other positions along with the cylinder body, the sliding plug slides from the side of the steel pipe a to the side of the steel pipe b under the action of gravity, and the air outlet at the bottom of the steel pipe b is partially or completely shielded by the piston cylinder;
therefore, in the rotation process of the cylinder, most of air is blown in from the air branch pipe at the bottom of the cylinder, the air branch pipe at the top is not blown in, and only a small amount of air is blown in from the air branch pipes in other directions, so that the purposes of suspending and drying materials and supporting combustion of the air are exerted to the maximum extent.
Compared with the prior art, the invention has the beneficial effects that:
1) the invention can improve the drying and burning efficiency of the powder in the cylinder, shorten the drying and burning time and reduce the energy consumption.
2) The invention can be maintained conveniently, and the replacement and maintenance of the air branch pipe do not affect the normal operation of the whole device.
3) The invention adopts two variable frequency fans, which can work simultaneously, and when one fan fails, the other fan can still maintain the operation of the whole drying device.
4) The invention can also adapt to the size change of radial expansion of the heated cylinder.
Drawings
Figure 1 is a front view of the present invention (schematic view of the connection between the cylinder, air loop and air manifold).
FIG. 2 is a second front view of the present invention (the connection between the cylinder, blower and air loop).
Fig. 3 is a left side view of the present invention.
Fig. 4 is a sectional view a-a of fig. 1.
Fig. 5 is a front view of the sliding plug.
Fig. 6 is a top view of the sliding plug.
In the figure: 1-air ring pipe, 2-cylinder, 3-air branch pipe, 4-fan, 5-valve, 6-bolt, 7-nut, 8-cover plate, 9-steel pipe a, 10-steel pipe b, 11-sliding plug, 11-1 support rod, 11-2 rib plate and 11-3 piston cylinder.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in fig. 1-6, a powder suspension drying and combustion-supporting device comprises an air ring pipe 1, a cylinder 2, air branch pipes 3 and a fan 4, wherein the fan 4 is installed outside the cylinder 2, the air ring pipe 1 surrounds the periphery of the cylinder 2, a plurality of air branch pipes 3 are installed between the air ring pipe 1 and the cylinder 2, one ends of the air branch pipes 3 extend into the cylinder 2 and are welded and fixed with the cylinder 2, the other ends of the air ring pipe 1 are connected with the air ring pipe 1, and the air ring pipe 1 is connected with the fan 4 through a valve 5.
The air branch pipe 3 and the air ring pipe 1 are fixed by welding. The air branch pipes 3 are arranged uniformly in the circumferential direction of the drum 2.
The air branch pipe 3 comprises a steel pipe a9, a steel pipe b10, a sliding plug 11 and a cover plate 8, the steel pipe a9 is connected with the steel pipe b10 in an interference fit mode, the upper end of the steel pipe a9 penetrates through the air ring pipe 1, the top end of the steel pipe a9 is sealed through the cover plate 8, the steel pipe a9 is communicated with the air ring pipe 1, the bottom end of the steel pipe b10 is sealed, an air outlet is formed in the side face of the bottom of the steel pipe b10, and the sliding plug 11 is arranged inside the steel pipe a9 and the steel pipe b 10. The steel pipe b10 is welded and fixed with the cylinder 2.
The steel pipe a and the steel pipe b are connected in an interference fit mode and used for absorbing radial displacement generated by the air branch pipe 3 after the cylinder body 2 is heated and expanded. The top of the air branch pipe 3 is sealed through the connection of a bolt 6, a nut 7 and a cover plate 8.
When the air ring pipe and the air branch pipe rotate along with the cylinder, air enters the cylinder 2 from the air outlet on the side surface of the bottom of the steel pipe b10, and materials in the cylinder 2 are lifted to achieve the suspension effect.
The air outlet on the bottom side of the steel pipe b10 is preferably open-hole structure, and may be a nozzle structure.
The sliding plug 11 comprises a support rod 11-1, a rib plate 11-2 and a piston cylinder 11-3, wherein the support rod 11-1 is arranged in the middle of the piston cylinder 11-3 and is fixedly connected with the piston cylinder 11-3 through the rib plate 11-2, the piston cylinder 11-3 is positioned on one side of a steel pipe b10, and the support rod 11-1 is positioned on one side of a steel pipe a 9.
The fan 6 adopts a variable frequency fan, the gas flow can be adjusted at will, and the drying of powder under different working conditions is adapted.
A powder suspension drying and combustion-supporting process of a powder suspension drying and combustion-supporting device comprises the following specific steps:
the air ring pipe 1 and the air branch pipes 3 rotate along the cylinder body 2 along the clockwise direction, the fan 6 blows air to each air branch pipe 3 through the air ring pipe 1, when the air branch pipes 3 rotate to the lower part along the cylinder body 2, the sliding plugs 11 slide towards the steel pipes a9 under the action of gravity, the support rods 11-1 fall on the end parts of the steel pipes a9, at the moment, air outlets at the end parts of the steel pipes b10 are completely opened, and air is introduced into the cylinder body 2 from the air outlets at the end parts of the air ring pipe 1, the steel pipes a9, the piston cylinders 11-3, the steel pipes b10 and the steel pipes b10 to lift materials;
when the air branch pipe 3 rotates upwards or to other positions along with the cylinder body 2, the sliding plug 11 slides from the steel pipe a9 side to the steel pipe b10 side under the action of gravity, and the piston cylinder 11-3 partially or completely shields the air outlet at the bottom of the steel pipe b 10;
therefore, in the rotation process of the cylinder 2, most air is blown in from the air branch pipe 3 at the bottom of the cylinder 2, the air branch pipe 3 at the top is not blown in, and only a small amount of air is blown in from the air branch pipes 3 at other directions, so that the purposes of suspending and drying materials and supporting combustion of air are exerted to the maximum extent.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. A powder suspension drying and combustion-supporting device is characterized by comprising an air ring pipe, a cylinder body, air branch pipes and a fan, wherein the fan is arranged outside the cylinder body;
the air branch pipe comprises a steel pipe a, a steel pipe b, a sliding plug and a cover plate, the steel pipe a and the steel pipe b are connected in an interference fit mode, the upper end of the steel pipe a penetrates through the air ring pipe, the top end of the steel pipe a is sealed through the cover plate, the steel pipe a is communicated with the air ring pipe, the bottom end of the steel pipe b is sealed, an air outlet is formed in the side face of the bottom of the steel pipe b, and the sliding plug is arranged inside the steel pipe a and the steel pipe b.
2. The powder suspension drying and combustion-supporting device according to claim 1, wherein the sliding plug comprises a support rod, a rib plate and a piston cylinder, the support rod is arranged in the middle of the piston cylinder and is fixedly connected with the piston cylinder through the rib plate, the piston cylinder is positioned on one side of the steel pipe b, and the support rod is positioned on one side of the steel pipe a.
3. The powder suspension drying device and the combustion-supporting powder suspension drying and combustion-supporting process according to claim 1 are characterized by comprising the following steps:
the air ring pipe and the air branch pipes rotate along the cylinder body in the clockwise direction, the fan blows air to each air branch pipe through the air ring pipe, when the air branch pipes rotate to the lower part along with the cylinder body, the sliding plugs slide towards the steel pipe a under the action of gravity, the supporting rods fall on the end part of the steel pipe a, at the moment, the air outlet at the end part of the steel pipe b is completely opened, and air is introduced into the cylinder body from the air ring pipe, the steel pipe a, the piston cylinder, the steel pipe b and the air outlet at the end part of the steel pipe b to lift materials;
when the air branch pipe rotates to the upper part or other positions along with the cylinder body, the sliding plug slides from the side of the steel pipe a to the side of the steel pipe b under the action of gravity, and the air outlet at the bottom of the steel pipe b is partially or completely shielded by the piston cylinder;
therefore, in the rotating process of the cylinder, most air is blown in from the air branch pipe at the bottom of the cylinder, the air branch pipe at the top is not blown in, and only a small amount of air is blown in from the air branch pipes in other directions, so that the aims of drying the air and suspending the materials are fulfilled to the maximum extent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610936498.1A CN106440665B (en) | 2016-11-01 | 2016-11-01 | A powder suspension drying and combustion-supporting device and process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610936498.1A CN106440665B (en) | 2016-11-01 | 2016-11-01 | A powder suspension drying and combustion-supporting device and process |
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| Publication Number | Publication Date |
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| CN106440665A CN106440665A (en) | 2017-02-22 |
| CN106440665B true CN106440665B (en) | 2022-03-22 |
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| SU1089374A1 (en) * | 1982-11-02 | 1984-04-30 | Трест "Стройтермоизоляция" Главтепломонтажа | Method and installation for drying loose materials |
| KR930004055Y1 (en) * | 1991-05-31 | 1993-06-30 | 김채곤 | Drying machine |
| JP3151198B2 (en) * | 1999-05-11 | 2001-04-03 | 株式会社御池鐵工所 | Crushing, sorting and drying equipment |
| JP3925931B2 (en) * | 2002-03-14 | 2007-06-06 | 日本たばこ産業株式会社 | Humidity control method and humidity controller for raw materials |
| EP1790616B1 (en) * | 2005-11-29 | 2011-03-09 | Trading Engineering Technologies LLC | Dryer and method for drying precipitated calcium carbonate |
| CN101532771B (en) * | 2009-04-13 | 2010-11-17 | 山东天力干燥设备有限公司 | Annular tube split type steam rotary dryer |
| KR101357756B1 (en) * | 2011-02-23 | 2014-02-04 | 주식회사 에이피티 | Cylinder type continuous fluidized bed dryer |
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| CN103017492A (en) * | 2011-09-26 | 2013-04-03 | 溧阳市华生机械制造有限公司 | Roller dryer |
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| CN206247740U (en) * | 2016-11-01 | 2017-06-13 | 中冶焦耐(大连)工程技术有限公司 | A powder suspension drying and combustion-supporting device |
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