KR20170089182A - Sludge dryer - Google Patents
Sludge dryer Download PDFInfo
- Publication number
- KR20170089182A KR20170089182A KR1020160009261A KR20160009261A KR20170089182A KR 20170089182 A KR20170089182 A KR 20170089182A KR 1020160009261 A KR1020160009261 A KR 1020160009261A KR 20160009261 A KR20160009261 A KR 20160009261A KR 20170089182 A KR20170089182 A KR 20170089182A
- Authority
- KR
- South Korea
- Prior art keywords
- sludge
- scraper
- shaft
- rotating shaft
- drying
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- B01F7/16—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
- B02C18/0092—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage for waste water or for garbage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B1/00—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids
- F26B1/005—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids by means of disintegrating, e.g. crushing, shredding, milling the materials to be dried
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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
- F26B3/18—Drying solid materials or objects by processes involving the application of heat by conduction, i.e. the heat is conveyed from the heat source, e.g. gas flame, to the materials or objects to be dried by direct contact
- F26B3/20—Drying solid materials or objects by processes involving the application of heat by conduction, i.e. the heat is conveyed from the heat source, e.g. gas flame, to the materials or objects to be dried by direct contact the heat source being a heated surface, e.g. a moving belt or conveyor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
- F26B9/08—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers including agitating devices, e.g. pneumatic recirculation arrangements
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- B01F2215/0052—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
- B02C2201/063—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage for waste water or sewage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/18—Sludges, e.g. sewage, waste, industrial processes, cooling towers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The present invention resides in that the sludge is repeatedly agitated and dried through a unit drying device repeatedly arranged in the vertical direction to reduce the water content of the sludge and the sludge is pulverized through the sludge crushing device disposed between the unit drying devices, The sludge drying apparatus according to the present invention comprises a drying chamber for providing a drying space for sludge; A scraper rotating shaft provided inside the drying chamber; A plurality of scraper devices spaced apart from the scraper rotating shaft and rotated together with the rotation of the scraper rotating shaft to stir the sludge; A plurality of heat plates disposed between the scraper devices for heating the sludge while providing a stirring space for the sludge; And a sludge crushing device provided at a lower portion of the specific heat plate for crushing and pulverizing the sludge.
Description
The present invention relates to a sludge drying apparatus, and more particularly, to a sludge drying apparatus which repeatedly stirs and dries a sludge through a unit drying apparatus repeatedly arranged in a vertical direction to reduce the water content of the sludge, And more particularly, to a sludge drying apparatus capable of doubling the sludge drying efficiency by doubling the sludge through the sludge crushing apparatus.
In recent years, the incidence of domestic sewage or industrial wastewater is increasing. Accordingly, the wastewater treatment plant, which is a basic facility for improving water quality, is also on the rise to prevent water pollution in major rivers and rivers, and the amount of wastewater sludge, which is a by-product secondary wastewater, is gradually increasing.
At present, sewage sludge is mostly disposed of by landfilling and marine dumping. However, in the case of simple landfill, the landfill of sewage treatment plant sludge with a capacity of 10,000 tons / day or more is prohibited in accordance with the revision of the Enforcement Regulations of the Waste Management Act from July 2003. Thus, although the proportion of marine dumping is increasing, there is a concern that the marine ecosystem may be contaminated by eutrophication due to excessive organic matter, algae growth due to the introduction of a large amount of vegetative nutrients, and oxygen depletion, Korea entered into the London Convention on December 21, 1993, and entered into force on January 19, 1994. In particular, since 2004, Korea has been conducting the leaching test and the content test, The law is being revised, for example, to enforce regulations and ban marine emissions from January 1, 2016. Incineration, which is also considered as a sludge disposal method, causes problems of air pollution due to secondary environmental pollutants as well as construction costs and operating costs of high incineration facilities.
Recently, various types of sludge drying devices have been developed for recycling sludge (Korean Patent No. 1100899, Korean Laid-open Patent No. 2014-132462, etc.). However, in the conventional sludge drying apparatus, an overload of the drying apparatus due to the attachment of sludge is caused to cause a sudden stop phenomenon, or there is a problem in that the sludge slip phenomenon due to excessive introduction of sludge and inadequate stirring causes a decrease in drying efficiency . In addition, the conventional sludge dryer has a structure in which it is not easy to access the inside of the dryer when fixed, which is inconvenient for repairing.
SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a sludge drying apparatus which repeatedly stirs and dries a sludge through a unit drying device repeatedly arranged in a vertical direction, And a sludge drying device capable of doubling sludge through the sludge crushing device and doubling the sludge drying efficiency.
Another object of the present invention is to provide a sludge drying apparatus which is easy to maintain and maintain by constituting a scraper device for agitating sludge with a detachable structure.
According to an aspect of the present invention, there is provided a sludge drying apparatus comprising: a drying chamber for providing a drying space for sludge; A scraper rotating shaft provided inside the drying chamber; A plurality of scraper devices spaced apart from the scraper rotating shaft and rotated together with the rotation of the scraper rotating shaft to stir the sludge; A plurality of heat plates disposed between the scraper devices for heating the sludge while providing a stirring space for the sludge; And a sludge crusher provided at a lower portion of the specific heat plate to crush the sludge to decompose the sludge.
Wherein the sludge crusher comprises a crushing chamber for providing a crushing space for the sludge and a crusher for crushing sludge contained in the crushing chamber, the crusher being composed of a pair of blades arranged in parallel, And the blades of the blades may be arranged so as to be alternately overlapped with each other.
The scraper device is composed of a plurality of scrapers arranged on the same plane, and the plurality of scrapers are disposed at a certain angle apart from each other in the rotating direction of the scraper rotating shaft.
Each of the scrapers is made of a shaft and a stirrer, the shaft is fixed on the scraper rotating shaft, and a plurality of stirrers are spaced apart from each other on the shaft, and the stirrer has a shape in which two plates are orthogonally coupled A sludge receiver for stirring the sludge in contact with the sludge, and a fixing member mounted on the periphery of the shaft in a cylindrical shape to fix the sludge receiver to the shaft.
The cylindrical fixing member has a shape in which a cross section has a circular opening area (hereinafter referred to as an opening area), and on the upper shaft, a fixing pin is provided in a direction perpendicular to the shaft, And the fixing member can be rotated at a predetermined angle by the width of the opening region.
A steam supply pipe is provided inside each of the heat plates, and steam is supplied through one side of the steam supply pipe and steam is discharged through the other side. A sludge transfer hole is provided in the heat plate, a sludge transfer hole is provided in the center of the heat plate in the case of the hot plate of the hole means, and a sludge transfer hole is provided in the periphery of the heat plate in the case of the heat plate of the even number means.
The sludge drying apparatus according to the present invention has the following effects.
It is possible to dry the sludge through a plurality of unit drying devices composed of a scraper and a hot plate and to improve the drying efficiency of the sludge as the sludge is undifferentiated by the sludge crushing device during the drying of the sludge through the plurality of unit drying devices .
1 is a front view of a sludge drying apparatus according to an embodiment of the present invention;
2 is a plan view of a scraper device;
3 is a plan view of a heating plate;
Fig. 4 and Fig. 5 are schematic diagrams of a scraper. Fig.
6 is a plan view of the sludge crusher;
The present invention proposes a technique for repeatedly performing the drying and drying of the sludge through a plurality of unit drying devices by repeatedly arranging the unit drying device composed of the heat plate and the scraper device in the vertical direction and drying the sludge. In addition, a technique for disposing a sludge crushing device between unit drying devices and improving the drying efficiency of the sludge by pulverizing the sludge through the sludge crushing device is proposed. In addition, the present invention proposes a sludge drying device that can be easily separated and maintained by selectively separating each device constituting the scraper.
Hereinafter, a sludge drying apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings.
Referring to FIG. 1, a
A
The plurality of
The scraper apparatus of each stage rotates together with the rotation of the
A
A steam supply pipe (not shown) is provided inside each of the
In addition, the
The sludge on the
On the other hand, in order to increase the drying efficiency of the sludge, it is necessary that the sludge is pulverized. If the sludge is undifferentiated, the heat transfer surface area is increased and the drying efficiency of the sludge is improved. To this end, a
The
The crusher may be composed of a pair of
Next, the detailed structure of the scraper device will be described.
Each of the
The
5, the
The structure of the
When the sludge is supplied onto the
A part of the sludge on the
Meanwhile, in the process of moving the sludge to the
100: sludge drying apparatus 110: drying chamber
120: scraper rotating shaft 130: scraper
131:
132a:
132c: opening area 140:
141: sludge transfer hole 150: sludge crushing device
151: crushing
152b: blade
Claims (7)
A scraper rotating shaft provided inside the drying chamber;
A plurality of scraper devices spaced apart from the scraper rotating shaft and rotated together with the rotation of the scraper rotating shaft to stir the sludge;
A plurality of heat plates disposed between the scraper devices for heating the sludge while providing a stirring space for the sludge; And
And a sludge crusher provided at a lower portion of the specific heat plate for crushing the sludge to decompose the sludge.
A crushing chamber providing a crushing space for the sludge,
And a crusher provided in the crushing chamber for crushing the sludge,
The crusher is composed of a pair of blades arranged in parallel,
Wherein each of the blades includes a rotating shaft and a blade spaced apart from the rotating shaft, and the blades of the blades are arranged in an alternating manner.
Wherein the shaft is fixed on the scraper rotating shaft, a plurality of stirrers are spaced apart from the shaft,
The stirrer may include:
A sludge receiver for stirring the sludge in contact with the sludge,
And a fixing member mounted on the periphery of the shaft in a cylindrical shape to fix the sludge receiver to the shaft.
The upper shaft is provided with a fixing pin in a direction orthogonal to the shaft, the fixing pin is located in the opening region of the fixing member,
Wherein the fixing member is rotatable at a predetermined angle by a width of the opening region.
Wherein steam is supplied through one side of the steam supply pipe and steam is discharged through the other side of the steam supply pipe.
Wherein the sludge transferring hole is provided at the central portion of the heat plate in the case of the hot plate of the hole means and the sludge transfer hole is provided at the periphery of the heat plate in the case of the heat plate of the even number means.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160009261A KR101765117B1 (en) | 2016-01-26 | 2016-01-26 | Sludge dryer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160009261A KR101765117B1 (en) | 2016-01-26 | 2016-01-26 | Sludge dryer |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20170089182A true KR20170089182A (en) | 2017-08-03 |
KR101765117B1 KR101765117B1 (en) | 2017-08-23 |
Family
ID=59655399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020160009261A KR101765117B1 (en) | 2016-01-26 | 2016-01-26 | Sludge dryer |
Country Status (1)
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KR (1) | KR101765117B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108996874A (en) * | 2018-08-31 | 2018-12-14 | 江苏星鑫分离设备制造有限公司 | A kind of high-efficient sludge reaction tank |
CN112325598A (en) * | 2020-11-06 | 2021-02-05 | 江西若水新材料科技有限公司 | Nanometer calcium carbonate drying device |
CN112460917A (en) * | 2020-11-24 | 2021-03-09 | 浙江德清蓝雅晶体纤维有限公司 | Ceramic fiber production equipment |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4139372B2 (en) * | 2004-10-01 | 2008-08-27 | 大阪瓦斯株式会社 | Vacuum drying equipment |
-
2016
- 2016-01-26 KR KR1020160009261A patent/KR101765117B1/en active IP Right Grant
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108996874A (en) * | 2018-08-31 | 2018-12-14 | 江苏星鑫分离设备制造有限公司 | A kind of high-efficient sludge reaction tank |
CN112325598A (en) * | 2020-11-06 | 2021-02-05 | 江西若水新材料科技有限公司 | Nanometer calcium carbonate drying device |
CN112325598B (en) * | 2020-11-06 | 2022-03-04 | 江西若水新材料科技有限公司 | Nanometer calcium carbonate drying device |
CN112460917A (en) * | 2020-11-24 | 2021-03-09 | 浙江德清蓝雅晶体纤维有限公司 | Ceramic fiber production equipment |
Also Published As
Publication number | Publication date |
---|---|
KR101765117B1 (en) | 2017-08-23 |
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