CN108592609B - Active air convection energy-saving environment-friendly drying tower - Google Patents
Active air convection energy-saving environment-friendly drying tower Download PDFInfo
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- CN108592609B CN108592609B CN201810385441.6A CN201810385441A CN108592609B CN 108592609 B CN108592609 B CN 108592609B CN 201810385441 A CN201810385441 A CN 201810385441A CN 108592609 B CN108592609 B CN 108592609B
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- barrel body
- tower
- blanking
- inner barrel
- tower body
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- 238000001035 drying Methods 0.000 title claims abstract description 64
- 239000000463 material Substances 0.000 claims abstract description 32
- 239000000428 dust Substances 0.000 claims abstract description 19
- 238000009423 ventilation Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 15
- 239000004927 clay Substances 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 description 17
- 230000008569 process Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000007789 gas Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
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
- F26B17/12—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft
- F26B17/14—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
- F26B25/007—Dust filtering; Exhaust dust filters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses an active air convection energy-saving environment-friendly drying tower, wherein ventilation holes (9) are respectively formed in the walls of an outer barrel body (4) and an inner barrel body (5) in a whole body, the inner barrel body (5) is arranged in the center of the outer barrel body (4), a blanking area is formed between the outer barrel body (4) and the inner barrel body (5), a plurality of blanking unit components (8) are arranged in the blanking area to form a material falling channel, a bucket elevator (1) is arranged on the outer side of the tower body, a distributing device (6) is arranged above the tower body, a collecting device (7) is arranged below the tower body, an air pipe at the top of the tower body is connected with a draught fan (2) and a dust remover (3), and the air pipe is communicated with the inner barrel body (5) to enable the tower body in operation to form a negative pressure environment. The invention can lead the clay pre-drying process not to occupy a large amount of sunning ground and land, not to generate dust pollution and tail gas emission, greatly reduces mechanical power, and is energy-saving, environment-friendly, clean and safe pre-drying equipment.
Description
Technical Field
The invention relates to a drying device, in particular to an active air convection energy-saving environment-friendly drying tower.
Background
It is well known that pre-drying is an essential important step in many clay processing processes. The moisture content of freshly mined clay raw ore is about 35%, reduced to about 25% or less by a pre-drying process. The method has the effects of reducing the water content in freshly mined clay raw ores, improving the capillary structure and subsequent processing performance of the clay raw ores, improving the crushing effect, the dispersing effect, the activating effect and the like of the clay, greatly improving the production efficiency of clay processing, stabilizing the performance index of products and ensuring the quality of clay processing end products.
At present, clay predrying modes mainly comprise two modes of tedding and drying. The former needs to consume a large amount of machinery, power, labor force and investment, occupies a large amount of sunning ground, namely land, has large production influence by weather, has low production efficiency and extremely unstable yield, can not control a large amount of clay dust pollution and tail gas emission of operation machinery, has a lagging production technology and high environmental cost, but is a main method for pre-drying clay at present; the latter needs to consume a large amount of energy sources in the drying process, and generates a large amount of waste gas and dust pollution, so that the production cost is high and the waste gas and dust pollution are adopted.
Disclosure of Invention
The purpose of the invention is that: the active air convection energy-saving environment-friendly drying tower is designed, the purpose of reducing the moisture of related materials is achieved by utilizing air (drying environment) with lower natural relative humidity and adopting active air convection, the difficult problems of high-efficiency production and cleaning operation of clay raw material predrying procedures are solved, the clay predrying process can not occupy a large amount of sunning fields and lands, no dust pollution is generated any more, the power consumption and the tail gas emission are greatly reduced, the investment and the labor force are reduced, and the dependence on weather is a clay predrying device which is land-saving, energy-saving, labor-saving, investment-saving, environment-friendly, safe, efficient and clean, and is particularly suitable for predrying clay raw materials such as attapulgite.
The technical scheme of the invention is as follows: the active air convection energy-saving environment-friendly drying tower comprises a tower body, a bucket elevator, an induced draft fan and a dust remover, wherein an air pipe at the top of the tower body is connected with the induced draft fan and the dust remover, and the bucket elevator is arranged at the outer side of the tower body; the method is characterized in that: the tower body comprises an outer barrel body, an inner barrel body, a distributing device, a collecting device and a blanking unit component; an inner barrel body is arranged in the center of the outer barrel body, ventilation holes are distributed on the barrel walls of the outer barrel body and the inner barrel body, and an air convection channel is formed; a blanking area is formed between the inner wall of the outer barrel body and the outer wall of the inner barrel body, and a plurality of blanking unit components are arranged in the blanking area to form a material falling channel; a distributor is arranged on the top of the tower body above the blanking area, the inlet of the distributor is aligned with the outlet of the bucket elevator, and the outlet of the distributor is aligned with the blanking area; a material collector is arranged below the blanking area at the bottom of the tower body; the air pipe of the dust remover is communicated with the inner barrel body, and a negative pressure environment is formed in the whole tower body during operation.
Wherein the ventilation holes on the inner barrel body are distributed in the principles of upper thin or small and lower dense or large.
Each blanking unit component is formed by connecting a plurality of blanking plates in series in a staggered manner from top to bottom in a high-low inclination angle manner, and the blanking unit components are regularly arranged in a blanking area between the inner wall of the outer barrel body and the outer wall of the inner barrel body along concentric circumferences or parallel contour lines, and each blanking unit component works relatively independently.
The invention has the advantages that:
1. the drying tower works in a manner that relatively dry air is utilized to continuously carry away moisture in materials by convection, so that the purposes of reducing the moisture content of the materials and realizing continuous cleaning operation of pre-drying production are achieved; in the operation process of the drying tower, the materials to be dried are continuously and circularly operated in the tower in a controlled manner so as to meet different technical requirements of the pre-drying production operation.
2. The air duct arrangement and the structural design of the tower enable the tower to be always in a negative pressure environment, effectively control dust overflow and pollution emission in the drying production operation, and realize clean production.
3. The surfaces of the outer barrel body and the inner barrel body of the drying tower are distributed with ventilation holes, and proper air flow is matched, so that the materials can obtain the effect of drying air in the whole process of movement from top to bottom no matter how high the materials are in the drying tower, meanwhile, the air flow entering from the outer barrel body of the drying tower is ensured to be approximately the same up and down, and the air after moisture absorption is discharged out of the drying tower through the inner barrel body in an up and down equal flow manner, so that the materials to be dried are in the same humidity difference (gradient) condition from outside to inside at any level inside the drying tower, the equal humidity difference environment exists at different heights inside the drying tower, and the uniform effect of the equal humidity difference drying air can be obtained when the materials move from top to bottom through the drying tower, thereby optimizing and maximizing the drying effect of the materials.
4. The ventilation holes on the inner barrel body of the drying tower are distributed in the principles of upper thin or small and lower dense or large, so that the flow of the drying air is basically equal up and down, the difference of air flux at different positions of the upper and lower positions of the drying tower caused by the difference of the distances between the upper and lower positions of the inner barrel body and the air guiding pipe is overcome, and the situation that the material can get the drying air with basically equal flow at the upper and lower positions of the drying tower is ensured.
5. A plurality of blanking unit components are distributed in a blanking area of the drying tower, and each blanking unit component works independently; reasonable blanking plate dip angle, size and mutual installation position are selected, the falling speed and flow of materials are controlled, the arrangement density of blanking unit components is determined, and ideal material drying effect and yield can be obtained.
6. When the drying tower works, the materials are subjected to the stir-frying and scattering and buffering effects of the blanking plate in the falling process under the action of gravity, so that the stay time of the materials in the drying tower is effectively prolonged, the materials are fully contacted with continuous drying air, and the drying effect of the materials is improved to the greatest extent.
7. The drying process of the drying tower is convenient for realizing continuous production and automatic control, stabilizing production, improving quality, reducing labor intensity, improving operation conditions, effectively realizing energy conservation and emission reduction, realizing clean production, promoting the change of the traditional production process and the industrial upgrading, and being suitable for the pre-drying processing production of most clay type raw materials.
8. Under the condition of low relative humidity of the environment, the drying tower can continuously operate throughout the year no matter in the daytime or at night, so that the production efficiency and the yield can be greatly improved, the utilization rate of the drying process to equipment and time is greatly improved, the optimization of production organization scheduling is promoted, and the production cost is reduced.
9. The drying tower ensures that a heating source is not required in the clay pre-drying process, a large amount of sunning ground and land are not occupied, main power during operation is only one lifting machine and one low-pressure fan, power consumption and labor force can be greatly reduced, dust pollution and tail gas emission can be effectively controlled, investment is saved, dependence of material drying on weather can be furthest reduced, and the drying tower is pre-drying equipment which is land-saving, energy-saving, investment-saving, labor force-saving, environment-friendly, clean and safe.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of the operation of the blanking unit assembly.
Fig. 3 is a schematic cross-sectional view of the tower of fig. 1.
Fig. 4 is a schematic longitudinal section of the tower of fig. 1.
In the figure: 1 bucket elevator, 2 draught fans, 3 dust removers, 4 outer barrels, 5 inner barrels, 6 distributors, 7 collectors, 8 blanking unit components, 9 ventilation holes and 10 blanking plates.
Detailed Description
The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings, which will help those skilled in the art to further understand, but do not limit the present invention in any way.
As shown in fig. 1, the active air convection energy-saving environment-friendly drying tower comprises a tower body, a bucket elevator 1, an induced draft fan 2 and a dust remover 3, wherein an air pipe at the top of the tower body is connected with the induced draft fan 2 and the dust remover 3, and the bucket elevator 1 is arranged at the outer side of the tower body; the method is characterized in that: the tower body comprises an outer barrel body 4, an inner barrel body 5, a distributing device 6, a collecting device 7 and a blanking unit component 8; an inner barrel body 5 is arranged in the center of the outer barrel body 4, ventilation holes 9 are distributed on the barrel walls of the outer barrel body 4 and the inner barrel body 5, and an air convection channel is formed; a blanking area is formed between the inner wall of the outer barrel body 4 and the outer wall of the inner barrel body 5, and a plurality of blanking unit components 8 are arranged in the blanking area to form a material falling channel; a distributor 6 is arranged on the top of the tower body above the blanking area, the inlet of the distributor 6 is aligned with the outlet of the bucket elevator 1, and the outlet of the distributor 6 is aligned with the blanking area; a material collector 7 is arranged below the blanking area at the bottom of the tower body; the air pipe of the dust remover 3 is communicated with the inner barrel 5, and a negative pressure environment is formed in the whole tower body during operation.
As shown in fig. 2 and 3, each blanking unit assembly 8 is formed by a plurality of blanking plates 10 which are staggered and connected in series from top to bottom in a high-low inclination angle, the blanking unit assemblies 8 are regularly arranged in blanking areas between the inner wall of the outer barrel body 4 and the outer wall of the inner barrel body 5 along concentric circumferences or parallel contour lines, and each blanking unit assembly 8 works relatively independently.
As shown in fig. 4, the ventilation holes on the inner tub 5 are distributed in the principle of "thin upper or small" and "dense lower or large".
The basic working process of the drying tower is as follows: conveying crushed clay raw ore to the top of a drying tower through a bucket elevator 1, throwing the crushed clay raw ore into a blanking area of the drying tower through a distributing device 6, repeatedly turning back and falling in the blanking area through a blanking unit assembly 8, and gradually moving materials from the top of the drying tower to the lower part of the drying tower; in the whole process of falling of materials from top to bottom, under the action of an induced draft fan 2, relatively dry air outside a drying tower enters the drying tower through ventilation holes distributed on the surface of an outer barrel body 4, passes through the high-humidity materials doing falling movement, enters ventilation holes on an inner barrel body 5 after taking away part of water of the materials, and discharges moist air outside the drying tower through the induced draft fan 2 and a dust remover 3; the material after the air convection drying is buffered by the material collector 7, and whether the material is continuously dried circularly or enters a pre-drying semi-finished product stock is determined according to the technical index requirement of the pre-drying operation.
The basic working process of the active air convection energy-saving environment-friendly drying tower is specifically described above. It is understood that the present invention is not limited to the specific structure and basic working process and treatment object described above, and those skilled in the art can make several modifications and improvements to the device to treat different materials and even add necessary clean heat source without departing from the present concept, which does not affect the essential content of the present invention, and all fall within the protection scope of the present invention.
Claims (1)
1. The active air convection energy-saving environment-friendly drying tower comprises a tower body, a bucket elevator (1), an induced draft fan (2) and a dust remover (3), wherein an air pipe at the top of the tower body is connected with the induced draft fan (2) and the dust remover (3), the bucket elevator (1) is arranged at the outer side of the tower body, and the tower body comprises an outer barrel body (4), an inner barrel body (5), a distributing device (6), a collecting device (7) and a blanking unit component (8); an inner barrel body (5) is arranged in the center of the outer barrel body (4), a blanking area is formed between the inner wall of the outer barrel body (4) and the outer wall of the inner barrel body (5), and a plurality of blanking unit components (8) are arranged in the blanking area to form a material falling channel; a distributing device (6) is arranged on the top of the tower body above the blanking area, an inlet of the distributing device (6) is aligned with an outlet of the bucket elevator (1), and an outlet of the distributing device (6) is aligned with the blanking area; a material collector (7) is arranged below the blanking area at the bottom of the tower body; the method is characterized in that: the air pipe of the dust remover (3) is communicated with the inner barrel body (5), and a negative pressure environment is formed in the whole tower body during operation; ventilation holes (9) are distributed on the barrel walls of the outer barrel body (4) and the inner barrel body (5) to form an air convection channel; the ventilation holes on the inner barrel body (5) are distributed in the principles of upper thin or small and lower dense or big; each blanking unit component (8) is formed by a plurality of blanking plates (10) which are in a high-low inclination angle and are staggered and connected in series from top to bottom, the blanking unit components (8) are regularly arranged in a blanking area between the inner wall of the outer barrel body (4) and the outer wall of the inner barrel body (5) along concentric circumferences or parallel contour lines, and each blanking unit component (8) works relatively independently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810385441.6A CN108592609B (en) | 2018-04-26 | 2018-04-26 | Active air convection energy-saving environment-friendly drying tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810385441.6A CN108592609B (en) | 2018-04-26 | 2018-04-26 | Active air convection energy-saving environment-friendly drying tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108592609A CN108592609A (en) | 2018-09-28 |
| CN108592609B true CN108592609B (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810385441.6A Active CN108592609B (en) | 2018-04-26 | 2018-04-26 | Active air convection energy-saving environment-friendly drying tower |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114719594B (en) * | 2022-06-09 | 2022-08-09 | 高质标准化研究院(山东)有限公司 | Method, system and equipment for detecting humidity of textile |
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2018
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