KR101497567B1 - Apparatus for Support Injection Pressure of Chamber for Supply Reheat Steam in System for Drying Coal - Google Patents
Apparatus for Support Injection Pressure of Chamber for Supply Reheat Steam in System for Drying Coal Download PDFInfo
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- KR101497567B1 KR101497567B1 KR20140073216A KR20140073216A KR101497567B1 KR 101497567 B1 KR101497567 B1 KR 101497567B1 KR 20140073216 A KR20140073216 A KR 20140073216A KR 20140073216 A KR20140073216 A KR 20140073216A KR 101497567 B1 KR101497567 B1 KR 101497567B1
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- steam
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- coal
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
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- 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
- F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
- F26B17/04—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all 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
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/10—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers
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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
- F26B21/005—Drying-steam generating means
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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
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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
- F26B3/14—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 materials or objects to be dried being moved by gravity
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
Abstract
[0001] The present invention relates to a jet pressure maintaining apparatus for reheating steam supply chambers for improving the drying efficiency at a constant jet pressure of reheating steam to coal fed into a conveying device in a multi-stage dryer for drying coal using reheat steam , A pair of first driving sprockets and a pair of first driven sprockets are spaced apart from each other by a predetermined distance and fastened to the first chains, a plurality of first transfer plates are hingedly coupled between the first chains, A pair of first guide rails for horizontally supporting the first transfer plate are provided below the upper second chain connected between the drive sprocket and the first driven sprocket, A pair of second guide rails horizontally supporting the first transfer plate are provided under the chain, and the reheat steam supplied from the reheater below the upper first chain A second vapor chamber for spraying the reheated steam supplied from the reheater is installed under the lower first chain, and a first exhaust chamber for collecting the exhaust gas is disposed on the upper first chain A first coal dryer provided with a second exhaust gas chamber for collecting exhaust gas on the lower first chain; And a pair of second drive sprockets and a pair of second driven sprockets are separated from each other by a predetermined distance and connected to second chains, a plurality of second transfer plates are hingedly coupled between the second chains, A pair of third guide rails horizontally supporting the second transfer plate are provided below the upper second chain connected between the drive sprocket and the second driven sprocket, A pair of fourth guide rails for horizontally supporting the second transfer plate are provided under the chain, a third vapor chamber for spraying the reheated steam supplied from the reheater is installed below the upper second chain, A third exhaust chamber for collecting exhaust gas is provided on the upper second chain, and a third exhaust chamber for collecting the exhaust gas is installed on the upper second chain, And a second coal dryer installed with a fourth exhaust gas chamber for collecting the coal, wherein the first coal dryer is charged with the first coal dried by the second coal dryer, And a steam supply pipe for supplying reheated steam generated in reheating is connected to one side of the chamber, the second steam chamber, the third steam chamber and the fourth steam chamber, and the first steam chamber, the second steam chamber, And a first steam distribution perforated plate having a plurality of first steam injection holes formed in an upper portion inside the fourth steam chamber are installed to spray reheat steam of a uniform pressure through the first steam injection hole, The first supporting member is fixed to a first fixing member provided on a bottom surface of a first vapor distribution pier provided in each of the first to fourth steam chambers, In the fixing member 2 supporting member is fixed, a first elastic support body having an elastic body having an elastic force of a certain magnitude is coupled between the first and second support members, and the first elastic support body supports the first vapor distribution perforated plate And a first space portion is formed between the first and second steam chambers to the fourth steam chamber, and the first vapor distribution pier may be raised by the vapor pressure introduced into the first space portion, So that the steam is kept constant through the injection hole. In the present invention, in a multi-stage coal dryer, high-temperature reheated steam is sprayed to the surface and inside of the coal at a uniform spray pressure, thereby preventing the incomplete combustion of coal by removing water remaining on the surface and inside of coal, It improves the calorific value of coal and minimizes emission of pollutants, improves the corrosion prevention and durability of the system, reduces the spontaneous ignition rate due to water reduction, improves the pulverization efficiency of the coal differentiator and the thermal distribution of the boiler , It is possible to solve the problem of clogging of moving passage at the time of transferring coal and to improve the stability of coal supply by increasing utilization of low grade coal which is in low demand.
Description
The present invention relates to an apparatus for drying coal using reheat steam, and more particularly, to a system for drying coal using a reheat steam, and more particularly, And more particularly to a jet pressure maintaining apparatus for a reheat steam supply chamber for improving drying efficiency.
Generally, a coal-fired thermal power plant burns about 180 tons of coal per 500 MW, and supplies about 37 tons of coal to a boiler per diffuser. A 500 MW coal-fired thermal power plant will have approximately six 500-ton capacity coal reservoirs, five of which will be supplied with normal coal, and the other will have a reserve coal reserve It is operated with low-fidelity.
Moreover, in the coal-fired thermal power plant, the standard thermal power design standard for coal is 6,080 Kcal / Kg, designed to use low-moisture bituminous coal of less than 10%. Some coal-fired power plants use imported coal, some of which have an average moisture content of at least 17%, which reduces the combustion efficiency of the boiler. If the calorific value of the coal used as the standard thermal power combustion limit is 5,400 Kcal / Kg is low, it is expected that the power generation will decrease and the fuel consumption will increase due to the decrease of combustion efficiency. In addition, when the coarse coal with a low calorific value of high water content is used, the water content is higher than the design standard and the conveying system for conveying the coal is not smooth, and when the coal is pulverized by the differentiator, the efficiency is lowered, , It may happen that the heat distribution generated in the boiler is operated with drift and abnormal condition. However, in order to reduce fuel costs in thermal power plants, the proportion of sub-bituminous coal is gradually increasing to about 41 ~ 60%.
In addition, with the expectation of the global economic recovery and the destruction of nuclear power plants due to the Japanese earthquake, the demand for coal-fired power plants is expected to rise steadily as the demand for thermal power plants increases. The global coal market is changing from the consumer to the supplier, and it is difficult to supply and supply stable coal. Production of high calorific coal is expected to remain at the current level, which is unbalanced supply and demand.
Among the total coal reserves of the world coal, the low calorific value is about 47%, but the calorific value is low and the water content is high, so the low calorific value burning of high water such as combustion trouble at the time of combustion is difficult to completely ignite in the market. Until now, there has been a high tendency to rely on stable oil prices and low production costs of nuclear power generation worldwide, but there are many plans for the construction of coal-fired thermal power plants due to the rapid rise in oil prices and anxiety about nuclear power generation .
Conventionally, the technique of drying coal (thermal drying) is a rotary drying method in which coal particles in the inside are dried with a high temperature gas while rotating a shell of a cylinder into which coal is charged, and a rotary drying method in which coal is dried from a high temperature (Flash, Pneumatic) drying method in which the gas is raised from the bottom to the top, and a fluid-bed drying method in which the high-temperature drying gas rises to the top with fine particles to dry the coal.
Coal is divided into surface moisture attached to the pores between the coal particles and bonded water which is bound to the pores inside the coal. The surface moisture occupies most of the water sprayed during the washing process, transportation and storage in the mountain, and its amount is determined by the surface area and the water absorption. The smaller the particle size, the larger the surface area and the capillary between particles and particles is formed. And the water content becomes larger. The combined moisture is formed in coal-fired generators, which are lignite, bituminous coal (bituminous coal, bituminous coal), and anthracite. If the coal has a lot of water, the calorific value is lowered and the transportation cost is increased, so it is necessary to control the water in the process of mixing, grinding and separating the coal.
Further, in an apparatus for drying coal by spraying high-temperature reheating steam under a dryer while conveying the pulverized coal through a multi-stage dryer, that is, a conveyor having a plurality of through holes formed therein for passing the reheat steam or a plurality of conveyor plates, There is a problem that the reheated steam is not sprayed at uniform pressure on the coal put on the plate, so that the moisture contained in the coal can not be effectively dried. As a result, the number and length of the dryer for drying the coal have to be increased, and the amount of the reheated steam for drying has been increased, thereby increasing the cost and time for drying the coal.
As a prior art related to the present invention, Patent Document 1 discloses a steam superheating apparatus in which a steam conveyor belt for conveying coal in a duct of a superheated steam drying apparatus is installed, an overheated steam supply pipe is connected to the duct, and superheated steam Is sprayed. However, there has been a problem that the superheated steam is sprayed only on the surface of the coal charged on the steam conveyor belt, or the superheated steam is not effectively sprayed to the coal particles or pores in the areas where the coal is solid or dense, thereby lowering the drying efficiency.
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a coal drying apparatus for drying coal to be used as a fuel of a thermal power plant by reheating steam while conveying the coal to a dryer, To thereby effectively dry the coal.
Another object of the present invention is to improve the combustion efficiency of a thermal power plant boiler by increasing the heating value of coal by making it possible to maintain an appropriate moisture content of coal by effectively drying coal, thereby reducing fuel consumption.
It is another object of the present invention to provide a drying technology and a technology applicable to a thermal power plant that can prevent environmental problems due to incomplete combustion of coal by controlling moisture contained in coal.
In order to achieve the above object, the present invention is characterized in that a pair of first driving sprockets and a pair of first driven sprockets are separated from each other by a predetermined distance and are respectively fastened to first chains, A pair of first guide rails horizontally supporting the first transfer plate are provided under the upper second chain connected between the first drive sprocket and the first driven sprocket, A pair of second guide rails for horizontally supporting the first conveying plate are provided below the lower first chain connected between the first driven sprockets and a pair of first guide rails for horizontally supporting the first conveying plate, A second steam chamber for spraying reheat steam supplied from a reheater is installed under the lower first chain, and a first exhaust gas chamber for collecting exhaust gas is installed on the upper first chain, And, a first and a second coal drier off-gas chamber for collecting exhaust gas on the lower side chain installed first; And a pair of second drive sprockets and a pair of second driven sprockets are separated from each other by a predetermined distance and connected to second chains, a plurality of second transfer plates are hingedly coupled between the second chains, A pair of third guide rails horizontally supporting the second transfer plate are provided below the upper second chain connected between the drive sprocket and the second driven sprocket, A pair of fourth guide rails for horizontally supporting the second transfer plate are provided under the chain, a third vapor chamber for spraying the reheated steam supplied from the reheater is installed below the upper second chain, A third exhaust chamber for collecting exhaust gas is provided on the upper second chain, and a third exhaust chamber for collecting the exhaust gas is installed on the upper second chain, And a second coal dryer installed with a fourth exhaust gas chamber for collecting the coal, wherein the first coal dryer is charged with the first coal dried by the second coal dryer, And a steam supply pipe for supplying reheated steam generated in reheating is connected to one side of the chamber, the second steam chamber, the third steam chamber and the fourth steam chamber, and the first steam chamber, the second steam chamber, And a first steam distribution perforated plate having a plurality of first steam injection holes formed in an upper portion inside the fourth steam chamber are installed to spray reheat steam of a uniform pressure through the first steam injection hole, The first supporting member is fixed to a first fixing member provided on a bottom surface of a first vapor distribution pier provided in each of the first to fourth steam chambers, In the fixing member 2 supporting member is fixed, a first elastic support body having an elastic body having an elastic force of a certain magnitude is coupled between the first and second support members, and the first elastic support body supports the first vapor distribution perforated plate And a first space portion is formed between the first and second steam chambers to the fourth steam chamber, and the first vapor distribution pier may be raised by the vapor pressure introduced into the first space portion, And the steam pressure is maintained constant through the steam spray hole. The present invention is characterized by providing an apparatus for maintaining the jet pressure of a reheat steam supply chamber in a coal drying apparatus.
In the present invention, it is preferable that the first vapor injection hole has a perforation rate of 10 to 15% with respect to the total area of the first vapor distribution perforated plate.
Further, in the present invention, a first stopper horizontally supporting the first vapor distribution pier may be installed on the inner wall of the first to fourth vapor chambers.
Further, in the present invention, it is preferable that the first elastic support is wrapped around the outer periphery of the first elastic support in a pocket.
Further, in the present invention, a second vapor distribution perforated plate having a plurality of second vapor injection holes formed in an upper portion or a lower portion of a first vapor distribution pier provided in each of the first to fourth vapor chambers may be installed.
Further, in the present invention, the first supporting member is fixed to the third fixing member provided on the bottom surface of the second vapor distribution pier, and the fourth supporting member provided on the surface of the first vapor- And a second elastic supporter having an elastic body having an elastic force of a predetermined magnitude is coupled between the first and second support members, and the second elastic supporter is provided with a plurality of And a second space portion is formed between the first steam distribution perforated plate and the second steam distribution perforated plate, and the second steam distribution perforated plate is elevated by the vapor pressure introduced into the second space portion so that the reheated steam injection pressure is constant .
Also, in the present invention, it is preferable that the second vapor injection hole has a perforation rate of 10 to 15% as compared with the total area of the second vapor distribution perforated plate.
Further, in the present invention, a plurality of branch steam supply pipes may be connected to the first to fourth steam chambers.
Further, in the present invention, a first stopper horizontally supporting the first vapor distribution pier may be provided on the inner wall of the first to fourth vapor chambers, and a second stopper may be provided to support the second vapor distribution pier The stopper may be installed to protrude from the first to fourth steam chambers.
Further, in the present invention, it is preferable that the second elastic support is wrapped around the outer periphery of the second elastic support in a pocket.
According to the present invention, in the multi-stage coal dryer, the high-temperature reheating steam is sprayed to the surface and inside of the coal at a uniform spray pressure, thereby removing the remaining water from the surface of the coal used as the fuel for the thermal power plant and the incomplete combustion , It is possible to improve the calorific value of coal and to minimize the emission of pollutants, improve the corrosion prevention and durability of the system, reduce the spontaneous ignition rate due to the decrease of moisture, and reduce the thermal diffusivity of the power generation boiler during the pulverization efficiency of the coal differentiator and coal. And it is possible to solve the problem of clogging of the passageways when the coal is transported, and it is possible to improve the stability of the coal supply by increasing the utilization of the low grade coal with low demand. In addition, it is possible to use low-calorific charcoal, which is cheaper in price than high-calorie coal, reduce fuel cost and cost due to reduction of coal import quantity, and reduce coal consumption relatively, thereby reducing waste and pollutant discharge And carbon dioxide can be reduced, and the effect of substitution of foreign technology and overseas export of facilities can be expected.
1 is a block diagram showing a coal drying apparatus according to the present invention.
2 is a view showing the front view of the coal drying apparatus according to the present invention.
3 is a schematic view showing a side view of a coal drying apparatus according to the present invention.
4 is a perspective view showing a main part in which a jet pressure maintaining device is installed in a reheat steam supply chamber in a coal drying apparatus according to the present invention.
5 is a perspective view showing an apparatus for maintaining the jet pressure of a reheat steam supply chamber in a coal drying apparatus according to an embodiment of the present invention.
6A and 6B are cross-sectional views illustrating the operation of the jet pressure maintaining apparatus of the reheat steam supply chamber in the coal drying apparatus according to the present invention.
7 is a sectional view showing the operation of the jet pressure maintaining apparatus of the reheat steam supply chamber in the coal drying apparatus according to another embodiment of the present invention.
8 is a perspective view showing an apparatus for maintaining the jet pressure of a reheat steam supply chamber in a coal drying apparatus according to another embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a jet pressure maintaining apparatus for a reheat steam supply chamber in a coal drying apparatus according to the present invention will be described in detail with reference to the accompanying drawings.
The present invention relates to a method and apparatus for conveying coal while conveying coal using a conveying device such as a conveyor or a conveying plate and spraying reheated steam of a uniform pressure onto a coal having a constant water content introduced into a conveying device having a plurality of through- Thereby enhancing the drying effect. Further, the steam chamber for supplying the reheated steam is installed at the lower part of the conveying device of the coal dryer, and the high-temperature reheating steam generated in the reheater while the pulverized coal is transferred to the transfer device is sprayed at a constant pressure to dry the coal will be.
In FIG. 1, the low-
2 and 3 show an example of a
The
The
Therefore, in the present invention, the
The
A first
A plurality of through
The
In Fig. 4, the
The
5, a
6A, when the vapor pressure does not flow into the
A first stopper (37) for horizontally supporting the first vapor distribution perforated plate (10) is provided on the inner wall of the steam chamber (120). The
It is preferable that the first
6B, the coal C to be dried is conveyed onto a plurality of
The reheated steam injected through the first
7, in another embodiment of the vapor chamber of the present invention, a plurality of second vapor discharges are formed on the first vapor
The first supporting
A
The coal C to be dried is transferred onto the plurality of
In addition, the reheated steam injected from the
The reheated steam injected through the second
It is preferable that the second
8, in another embodiment of the present invention, a plurality of branch
As described above, the apparatus for maintaining the jet pressure of the reheat steam supply chamber in the coal drying apparatus of the present invention is characterized in that, while coal for drying is transferred onto a plurality of transfer plates for transferring coal, It is possible to effectively remove the moisture contained in the coal by spraying the high-temperature reheating steam, thereby effectively drying the coal particles and the air gap.
While the invention has been shown and described with respect to the specific embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Anyone who has it will know it easily.
[0001] The present invention relates to a steam distribution apparatus for a steam distribution, and more particularly, to a steam distribution apparatus for a steam distribution apparatus, 1
Claims (10)
Wherein the first steam chamber, the second steam chamber, and the fourth steam chamber are connected to one side of the first steam chamber, the second steam chamber, the third steam chamber and the fourth steam chamber, respectively, A first vapor distribution piercing plate having a plurality of first vapor injection holes penetrating through the third vapor chamber and the fourth vapor chamber is installed to discharge reheat steam of a uniform pressure through the first vapor injection hole,
A first support member is fixed to a first fixing member provided on a bottom surface of a first vapor distribution pier provided in each of the first to fourth vapor chambers, and the first to fourth vapor chamber inner bottom surfaces A first elastic support body having an elastic body having an elastic force of a predetermined magnitude is provided between the first and second support members, A plurality of the first vapor distribution piercing plates for supporting the first vapor distribution piercing plate to form a first space between the first and fourth vapor chambers and the first space partition, So that the reheat steam injection pressure is kept constant through the first vapor injection hole.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20140073216A KR101497567B1 (en) | 2014-06-17 | 2014-06-17 | Apparatus for Support Injection Pressure of Chamber for Supply Reheat Steam in System for Drying Coal |
PCT/KR2015/006142 WO2015194858A1 (en) | 2014-06-17 | 2015-06-17 | Apparatus for controlling steam pressure in apparatus for drying coal using reheat steam |
RU2017101198A RU2017101198A (en) | 2014-06-17 | 2015-06-17 | VAPOR PRESSURE CONTROL DEVICE IN THE COAL DRYING SYSTEM USING OVERHEATED STEAM |
CN201580031977.2A CN106574820A (en) | 2014-06-17 | 2015-06-17 | Apparatus for controlling steam pressure in apparatus for drying coal using reheat steam |
AU2015278422A AU2015278422B2 (en) | 2014-06-17 | 2015-06-17 | Apparatus for controlling steam pressure in apparatus for drying coal using reheat steam |
CA2952215A CA2952215A1 (en) | 2014-06-17 | 2015-06-17 | Apparatus for adjusting steam pressure in a system for drying coal using reheat steam |
US15/320,137 US20170130152A1 (en) | 2014-06-17 | 2015-06-17 | Apparatus for adjusting steam pressure in a system for drying coal using reheat steam |
PH12016502493A PH12016502493A1 (en) | 2014-06-17 | 2016-12-14 | Apparatus for adjusting steam pressure in a system for drying coal using reheat steam |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR20140073216A KR101497567B1 (en) | 2014-06-17 | 2014-06-17 | Apparatus for Support Injection Pressure of Chamber for Supply Reheat Steam in System for Drying Coal |
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KR101497567B1 true KR101497567B1 (en) | 2015-03-02 |
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KR20140073216A KR101497567B1 (en) | 2014-06-17 | 2014-06-17 | Apparatus for Support Injection Pressure of Chamber for Supply Reheat Steam in System for Drying Coal |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107144114A (en) * | 2017-06-08 | 2017-09-08 | 湖南雨泉医药有限公司 | A kind of rhizome traditional Chinese medicinal materials drying unit |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59204684A (en) * | 1983-05-10 | 1984-11-20 | Nippon Steel Chem Co Ltd | Drying process for coal |
JP2012091087A (en) * | 2010-10-25 | 2012-05-17 | Nippon Steel Corp | Raw material coal drying and classifying device |
KR20120075167A (en) * | 2010-12-28 | 2012-07-06 | 주식회사 포스코 | Device and method for drying coal for coke oven |
-
2014
- 2014-06-17 KR KR20140073216A patent/KR101497567B1/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59204684A (en) * | 1983-05-10 | 1984-11-20 | Nippon Steel Chem Co Ltd | Drying process for coal |
JP2012091087A (en) * | 2010-10-25 | 2012-05-17 | Nippon Steel Corp | Raw material coal drying and classifying device |
KR20120075167A (en) * | 2010-12-28 | 2012-07-06 | 주식회사 포스코 | Device and method for drying coal for coke oven |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107144114A (en) * | 2017-06-08 | 2017-09-08 | 湖南雨泉医药有限公司 | A kind of rhizome traditional Chinese medicinal materials drying unit |
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