CN108088222A - For the drier of concentrate powder - Google Patents
For the drier of concentrate powder Download PDFInfo
- Publication number
- CN108088222A CN108088222A CN201711339691.8A CN201711339691A CN108088222A CN 108088222 A CN108088222 A CN 108088222A CN 201711339691 A CN201711339691 A CN 201711339691A CN 108088222 A CN108088222 A CN 108088222A
- Authority
- CN
- China
- Prior art keywords
- drying drum
- directly
- rotary drying
- conveying
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
- F26B17/20—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/001—Heating arrangements using waste heat
- F26B23/002—Heating arrangements using waste heat recovered from dryer exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of driers, especially disclose a kind of drier for concentrate powder, belong to metallurgical production auxiliary equipment design and manufacturing technology field.A kind of drier for concentrate powder that can not only reduce production cost, but also can guarantee dry mass is provided.The drier includes drying cylinder, the drying cylinder includes the directly-heated rotary drying drum with structure for conveying in material and the heat-insulated rotary drying drum with structure for conveying outside material, the thermal input of the heat-insulated rotary drying drum is socketed on the posterior segment of the directly-heated rotary drying drum, structure for conveying is connected with the outer structure for conveying of the material in the material, dry thermal energy directly heats concentrate powder from directly-heated rotary drying drum into the drier, the concentrate powder that heat-insulated rotary drying drum is exported using the tail gas indirect heating of directly-heated rotary drying drum from directly-heated rotary drying drum.
Description
Technical field
The present invention relates to a kind of driers, and more particularly, to a kind of drier for concentrate powder, it is auxiliary to belong to metallurgical production
Help facilities design manufacturing technology field.
Background technology
Existing iron powder roasting mode includes internal heat type and external-heat, and internal heat type is wet concentrate and high temperature gas flow in Drying
Inside contact directly.In this way, iron powder is oxidized easily in baking process, metallic iron idea is caused to decline 2-3% and presentation quality
The scarce limit such as difference.And external-heat is by heated by gas drying cylinder shell, then transferring heat to inside drying cylinder makes iron powder by heated drying,
This method although the iron powder for avoiding baking process is aoxidized, there are gas utilization rate it is low the problem of.In actual production, baking
Gas consumption significantly rises, and the gas using quantity of general internal heat type is by for 78.95 yuan/ton, and the gas using quantity of external-heat
Surge to 275.89 yuan/ton.In this way, due to the increase of production cost, the market competitiveness of iron powder is seriously affected.As can it effectively keeps away
Exempt from iron powder to be aoxidized in baking process, while reduce the gas consumption of baking process, promote the market competitiveness of iron powder just
Become the technical issues of those skilled in the art are in the urgent need to address.
The content of the invention
The technical problems to be solved by the invention are：There is provided it is a kind of can not only reduce production cost, but also can guarantee dry matter
The drier for concentrate powder of amount.
Used technical solution is to solve above-mentioned technical problem：A kind of drier for concentrate powder, including drying
Cylinder, the drying cylinder include directly-heated rotary drying drum with structure for conveying in material and with outside material structure for conveying every
Hot rotary drying drum, the thermal input of the heat-insulated rotary drying drum are socketed in the posterior segment of the directly-heated rotary drying drum
On, structure for conveying and the material outer structure for conveying connects in the material, dry thermal energy from directly-heated rotary drying drum into
Enter the drier and directly heat concentrate powder, heat-insulated rotary drying drum using directly-heated rotary drying drum tail gas indirect heating from
The concentrate powder of directly-heated rotary drying drum output.
The beneficial effects of the invention are as follows：The application a set of includes directly-heated rotary drying drum and heat-insulated rotation is dry by setting
The drier of dry cylinder, and the thermal input of the heat-insulated rotary drying drum is made to be socketed in the directly-heated rotary drying drum
On posterior segment, structure for conveying is connected with the outer structure for conveying of the material in the material, and dry thermal energy is dry from directly-heated rotation
Dry cylinder directly heats concentrate powder into the drier, and heat-insulated rotary drying drum utilizes the tail gas indirect of directly-heated rotary drying drum
The concentrate powder exported from directly-heated rotary drying drum is heated, and when heated, realizes that dry thermal energy enters from directly-heated rotary drying drum
Drier directly heats wet concentrate powder, and heat-insulated rotary drying drum is revolved using the tail gas indirect heating of directly-heated rotary drying drum from directly-heated
The half-dried concentrate powder of dry output of becoming a cadre dries the concentrate powder.Since when directly heating, concentrate powder is maximum for water content
Wet iron powder, at this point, input heat amount it is also maximum；And in indirectly heat, concentrate powder is relatively low half of water content
Dry concentrate powder, utilize at this time be directly-heated rotary drying drum tail gas in heat and high-temperature water vapor carry out indirectly heat and do
It is dry, it is directly acted on so as to fulfill heat during big heat direct drying on the moisture in wet concentrate powder, avoids and directly add
A large amount of oxidations of the heat to concentrate powder, while drying efficiency can be submitted again；And in small heat indirectly heat, and be the directly-heated utilized
The high-temperature water vapor contained in the tail gas and tail gas of rotary drying drum come indirectly heat drying, avoid water content it is relatively low when
The oxidation to iron powder is directly heated, meanwhile, and the tail of the directly-heated rotary drying drum for inputting but making full use of without new energy
The heat contained in waste heat and water vapour in gas, thus limit production cost to greatest extent.
It is further that structure for conveying is to be rotarily dried mounted on the directly-heated in medial wall of the tube in the material
Spiral conveying blade, the outer structure for conveying of the material are that the external spiral between described on hot rotary drying drum lateral wall is defeated
Send blade.
Said program it is preferable that, the installation direction of the inside spin conveying blade and the external spiral conveying blade
Tilted to material delivery end.
It is further to be additionally provided with tail gas outlet in the end of the heat-insulated rotary drying drum.
It is further to be additionally provided with material delivery outlet in the end of the directly-heated rotary drying drum.
Description of the drawings
Fig. 1 is the structure rough schematic view that the present invention is used to dry the combined dryer of iron powder.
In figure mark for：The outer structure for conveying 3 of structure for conveying 1, directly-heated rotary drying drum 2, material, heat-insulated rotation are dry in material
Dry cylinder 4, tail gas outlet 5, material delivery outlet 6.
Specific embodiment
Be as shown in Figure 1 it is provided by the invention it is a kind of can not only reduce production cost, but also can guarantee being used for for dry mass
The drier of dry iron powder.The drier includes drying cylinder, and the drying cylinder is included with structure for conveying 1 in material
Directly-heated rotary drying drum 2 and the heat-insulated rotary drying drum 4 with structure for conveying outside material 3, the heat of the heat-insulated rotary drying drum 4
Energy input terminal is socketed on the posterior segment of the directly-heated rotary drying drum 2, structure for conveying 1 and the object in the material
The outer structure for conveying 3 of material connects, and dry thermal energy directly heats concentrate powder from directly-heated rotary drying drum 2 into the drier, every
The concentrate powder that hot rotary drying drum 4 is exported using the tail gas indirect heating of directly-heated rotary drying drum 2 from directly-heated rotary drying drum 2.
The application by set it is a set of include the drier of directly-heated rotary drying drum and heat-insulated rotary drying drum, and make described heat-insulated
The thermal input of rotary drying drum is socketed on the posterior segment of the directly-heated rotary drying drum, conveying knot in the material
Structure is connected with the outer structure for conveying of the material, and dry thermal energy is directly heated from directly-heated rotary drying drum into the drier
Concentrate powder, the essence that heat-insulated rotary drying drum is exported using the tail gas indirect heating of directly-heated rotary drying drum from directly-heated rotary drying drum
Miberal powder, and when heated, realize that dry thermal energy enters drier from directly-heated rotary drying drum and directly heats wet concentrate powder, heat-insulated rotation
Turn drying cylinder and rotarily dry the half-dried concentrate powder of output from directly-heated come drying using the tail gas indirect heating of directly-heated rotary drying drum
The concentrate powder.Since when directly heating, concentrate powder is the wet iron powder of water content maximum, at this point, the amount of the heat of input
Also it is maximum；And in indirectly heat, concentrate powder is the relatively low half-dried concentrate powder of water content, and what is utilized at this time is directly-heated rotation
Heat and high-temperature water vapor in the tail gas of drying cylinder carry out indirectly heat drying, so as to fulfill big heat direct drying
When heat directly act on the moisture in wet concentrate powder, avoid a large amount of oxidations directly heated to concentrate powder, while again can
Submit drying efficiency；And in small heat indirectly heat, and contained in the tail gas and tail gas of the directly-heated rotary drying drum utilized
Some high-temperature water vapors come indirectly heat drying, avoid water content it is relatively low when the oxidation directly heated to iron powder, meanwhile, again
Contain in waste heat and water vapour in the tail gas for the directly-heated rotary drying drum for not having the input of new energy but making full use of
Heat, thus limit production cost to greatest extent.
It is above-mentioned to apply in real mode, in order to make the structure of the combined dryer compacter, simpler, to facilitate system
It makes, installation, maintenance and submit efficiency, reduce cost, structure for conveying 1 is to be revolved mounted on the directly-heated in material described herein
Turn the inside spin conveying blade on 2 madial wall of drying cylinder, the outer structure for conveying 3 of the material is that heat rotation is dry between described
External spiral conveying blade on dry cylinder lateral wall.The installation direction of the inside spin conveying blade and the external spiral conveying blade
Tilted to material delivery end.
Meanwhile the discharge of the tail gas of herein described combined dryer and dry qualified iron powder for convenience is defeated
Go out, tail gas outlet 5 is additionally provided in the end of the heat-insulated rotary drying drum 4；In the end of the directly-heated rotary drying drum 2
It is additionally provided with material delivery outlet 6.
Claims (5)
1. a kind of drier for concentrate powder, including drying cylinder, it is characterised in that：The drying cylinder is included in material
The directly-heated rotary drying drum (2) of structure for conveying (1) and the heat-insulated rotary drying drum (4) with structure for conveying outside material (3), it is described
The thermal input of heat-insulated rotary drying drum (4) is socketed on the posterior segment of the directly-heated rotary drying drum (2), the object
Structure for conveying (1) is connected with the outer structure for conveying (3) of the material in material, and dry thermal energy enters from directly-heated rotary drying drum (2)
The drier directly heats concentrate powder, and heat-insulated rotary drying drum (4) is added using the tail gas indirect of directly-heated rotary drying drum (2)
The concentrate powder that heat is exported from directly-heated rotary drying drum (2).
2. the drier according to claim 1 for concentrate powder, it is characterised in that：Structure for conveying in the material
(1) it is the inside spin conveying blade on directly-heated rotary drying drum (2) madial wall, the outer structure for conveying of the material
(3) it is external spiral conveying blade between described on hot rotary drying drum (4) lateral wall.
3. the drier according to claim 2 for concentrate powder, it is characterised in that：The inside spin conveying blade and institute
The installation direction for stating external spiral conveying blade is tilted to material delivery end.
4. the drier according to claim 3 for concentrate powder, it is characterised in that：In the heat-insulated rotary drying drum
(4) end is additionally provided with tail gas outlet (5).
5. according to the drier for concentrate powder described in claim 2,3 or 4, it is characterised in that：It is dry in directly-heated rotation
The end of dry cylinder (1) is additionally provided with material delivery outlet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711339691.8A CN108088222A (en) | 2017-12-14 | 2017-12-14 | For the drier of concentrate powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711339691.8A CN108088222A (en) | 2017-12-14 | 2017-12-14 | For the drier of concentrate powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108088222A true CN108088222A (en) | 2018-05-29 |
Family
ID=62175788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711339691.8A Pending CN108088222A (en) | 2017-12-14 | 2017-12-14 | For the drier of concentrate powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108088222A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679695A (en) * | 2012-06-06 | 2012-09-19 | 王松正 | External heating two-layer drying kiln |
| EP2853848A1 (en) * | 2012-05-21 | 2015-04-01 | Masao Kanai | Drying device |
| CN104776700A (en) * | 2015-04-09 | 2015-07-15 | 江西稀有稀土金属钨业集团有限公司 | Tungsten concentrate electric heating drying converter and tungsten concentrate electric heating drying method |
| CN205425742U (en) * | 2015-12-20 | 2016-08-03 | 重庆长源饲料有限公司 | Binocular fodder drying -machine |
| CN206670253U (en) * | 2017-03-07 | 2017-11-24 | 临沂鑫海新型材料有限公司 | A kind of drying oven |
-
2017
- 2017-12-14 CN CN201711339691.8A patent/CN108088222A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2853848A1 (en) * | 2012-05-21 | 2015-04-01 | Masao Kanai | Drying device |
| CN102679695A (en) * | 2012-06-06 | 2012-09-19 | 王松正 | External heating two-layer drying kiln |
| CN104776700A (en) * | 2015-04-09 | 2015-07-15 | 江西稀有稀土金属钨业集团有限公司 | Tungsten concentrate electric heating drying converter and tungsten concentrate electric heating drying method |
| CN205425742U (en) * | 2015-12-20 | 2016-08-03 | 重庆长源饲料有限公司 | Binocular fodder drying -machine |
| CN206670253U (en) * | 2017-03-07 | 2017-11-24 | 临沂鑫海新型材料有限公司 | A kind of drying oven |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180529 |