WO2016108705A1 - A method of and a device for drying fibrous biomass formed into ballots - Google Patents

A method of and a device for drying fibrous biomass formed into ballots Download PDF

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Publication number
WO2016108705A1
WO2016108705A1 PCT/PL2015/000216 PL2015000216W WO2016108705A1 WO 2016108705 A1 WO2016108705 A1 WO 2016108705A1 PL 2015000216 W PL2015000216 W PL 2015000216W WO 2016108705 A1 WO2016108705 A1 WO 2016108705A1
Authority
WO
WIPO (PCT)
Prior art keywords
ballots
pipe
flue
ballot
chamber
Prior art date
Application number
PCT/PL2015/000216
Other languages
French (fr)
Inventor
Janusz CIEŚLAK
Marian CIEŚLAK
Grzegorz Skrzypczak
Original Assignee
Metalerg Społka Z Ograniczoną Odpowiedzialnością Spółka Komandytowa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Metalerg Społka Z Ograniczoną Odpowiedzialnością Spółka Komandytowa filed Critical Metalerg Społka Z Ograniczoną Odpowiedzialnością Spółka Komandytowa
Publication of WO2016108705A1 publication Critical patent/WO2016108705A1/en

Links

Classifications

    • 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
    • F26B25/006—Separating volatiles, e.g. recovering solvents from dryer exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44—Details; Accessories
    • F23G5/46—Recuperation of heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/10—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of field or garden waste or biomasses
    • 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
    • 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
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/10—Drying by heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00—Waste heat recuperation
    • F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/26—Biowaste
    • F23G2209/262—Agricultural waste
    • 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
    • F26B2200/02—Biomass, e.g. waste vegetative matter, straw
    • 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
    • F26B2200/10—Grass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Definitions

  • the object of the invention is a method of drying fibrous biomass in ballots and a device for realizing the process according to this method, while the ballots are designed to be bunt in a boiler.
  • the method of drying fibrous biomass formed into ballots consists in forcing a drying medium in the form of dedusted flue gases through the biomass.
  • a ballot is stuck onto at least one hollowed out rod with a cone and lateral openings or slits.
  • Cleaned hot flue gases at the temperature of 50 to 160 °C are supplied to the rod and the flue gases are passed through the ballot.
  • the ballot is dried up, it is removed from the rod.
  • Flue gases are passed through ballots, once they have been passed through a dust- collecting chamber or filters and compressed by means of a fan. Once passed through the dust-coilecting chamber or filters, flue gases are guided to flow around the chamber with the ballot and then, to the fan.
  • the device for drying fibrous biomass formed into ballots is characterised in that it has got at least one rod with a cone and lateral openings or slits and the rod is permanently fixed in a body and connected with a conduit to a source of hot flue gasses, while there is also a servomotor installed in the body and the slidable piston rod of the servo-motor is connected to a displaceable push rod, fitted with guide bars mounted in the body.
  • the conduit connected to the source of flue gases is fitted with a dust- coilecting chamber with flue gas filters.
  • the conduit connected to the source of flue gases is fitted with a fan.
  • a method of drying fibrous biomass formed into ballots, according to the invention, consisting in pumping a drying medium in the form of flue gases, is characterised in that the raw flue gases are pumped through a ballot, while the flue gases are supplied to a ballot through a pipe with a large diameter that exceeds 300 mm and the dried-up ballot is passed directly over to a combustion chamber.
  • the drying process is realized in an enclosed chamber, located by a boiler for burning straw. Ballots to be dried are transported along the direction perpendicular to the direction of feeding ballots into the boiler.
  • a device for drying fibrous biomass formed into ballots that consists of a chamber that contains a flue gas inlet is characterised in that the flue gas inlet ends with a pipe of large diameter that exceeds 300 mm and the pipe is fitted with a movable end part, while there is a ballot feeder in the chamber and it is equipped with a pushing frame that encloses the end part of the pipe that supplies flue gases.
  • the end part of the fiue-gas-feeding pipe has got a flange located near the back end and it is joined to the fiue-gas-feeding pipe with a spring.
  • a method of and a device for drying fibrous biomass formed into ballots allows hot flue gases to be used to dry biomass, while volatile particles of flue gases are simultaneously removed from the flue gases and re-incinerated, as they remain in the biomass subjected to drying.
  • the use if this energy to dry the fuel allows the efficiency of the combustion process in the boiler to be significantly increased.
  • the energy contained in the flue gases generated by incinerating 1 ton of straw suffices to remove about 300 ⁇ 500 litres of water. It means the it is possible to reduce the degree of moistness of 1 ton of straw from the level of 40%, when straw is perceptibly damp, to the level of about 20% that is the optimum level for batch-charged boilers.
  • the device has also got the function of a flue-gas filter.
  • the passage of flue gases through a high-density fibrous structure results in total removal of volatile particles from the gases. Moreover, sulphur compounds are also picked up from the flue gases, which reduces the level of their emission.
  • the device is an automated line that requires only ballots to be loaded manually onto the feeder.
  • fig. 1 shows the top view of the device
  • fig. 2 shows the interior of the chamber for drying straw ballots
  • fig. 3 is a side view of the feeder located inside the chamber for drying straw ballots.
  • the device has got a chain feeder 1 on which straw ballots are placed in order to be dried and then to be incinerated.
  • the chain feeder 1 is driven with a motor 2, located by the end of the feeder 1.
  • the other end of the chain feeder 1 enters into a drying chamber 3, while the chamber 3 is closed on this side with a partition 4.
  • a ballot is fed with the chain feeder 1 and, when it enters the chamber 3, it is located on a feeding screw 5, presented in fig. 3.
  • the feeding screw 5 has got two tubular guide bars 6 and there is a driving screw 7 between them which is driven with the motor 8 over a chain transmission 9.
  • a pusher 10 is located on the guide bars 6 and it has got a frame 11 in its top part.
  • a flue 12 that supplies flue gases is fixed to the wall of the chamber 3.
  • the movable end part 14 has got a flange against which the frame 11 rests when it is moved into the back position.
  • the pusher 10 is moved a small distance forward, so that the spring 15 shifts the end part 14 towards the ballot.
  • the end part 14 cuts into the ballot, so that flue gases are channelled into the ballot.
  • flue gases from the flue 12 flow through the pipe 13 and the movable end part 14 and penetrate into the ballot, where they leave the majority of pollutants.
  • the motor 8 is switched on and it turns the driving screw 7, which results in shifting the pusher 10 forward.
  • the pusher 10 moves a dried-up ballot into the combustion chamber of a boiler 16, located by the chamber 3.
  • the chamber 3 is closed with the partition 17 on the side of the boiler 16. At the moment the ballot is being shifted, the partition 17 is being lifted up.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Environmental & Geological Engineering (AREA)
  • Sustainable Energy (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The object of the invention is a method of drying fibrous biomass in ballots and a device for realizing the process according to this method, while the ballots are designed to be bunt in a boiler. A method of drying fibrous biomass formed into ballots, consisting in pumping a drying medium in the form of flue gases, is characterised in that the raw flue gases are pumped through a ballot, while the flue gases are supplied to a ballot through a pipe (13) with a large diameter that exceeds 300 mm and the dried-up ballot is passed directly over to a combustion chamber. The drying process is realized in an enclosed chamber (3), located by a boiler (16) for burning straw. A device for drying fibrous biomass formed into ballots that consists of a chamber that contains a flue gas inlet is characterised in that the flue gas inlet ends with a pipe (13) of large diameter that exceeds 300 mm and the pipe is fitted with a movable end part (14), while there is a ballot feeding screw (5) in the chamber (3) and it is equipped with a pushing frame (11) that encloses the end part (14) of the pipe (13) that supplies flue gases. The end part (14) of the flue-gas-feeding pipe (13) has got a flange located near the back end and it is joined to the flue-gas-feeding pipe with a spring (15).

Description

A method of and a device for drying fibrous biomass formed into ballots
The object of the invention is a method of drying fibrous biomass in ballots and a device for realizing the process according to this method, while the ballots are designed to be bunt in a boiler.
A method of drying fibrous biomass in ballots and a device for realizing the process according to this method are described in the description of the invention patented under No. PL 214569. According to this invention, the method of drying fibrous biomass formed into ballots consists in forcing a drying medium in the form of dedusted flue gases through the biomass. A ballot is stuck onto at least one hollowed out rod with a cone and lateral openings or slits. Cleaned hot flue gases at the temperature of 50 to 160 °C are supplied to the rod and the flue gases are passed through the ballot. When the ballot is dried up, it is removed from the rod. Flue gases are passed through ballots, once they have been passed through a dust- collecting chamber or filters and compressed by means of a fan. Once passed through the dust-coilecting chamber or filters, flue gases are guided to flow around the chamber with the ballot and then, to the fan.
The device for drying fibrous biomass formed into ballots is characterised in that it has got at least one rod with a cone and lateral openings or slits and the rod is permanently fixed in a body and connected with a conduit to a source of hot flue gasses, while there is also a servomotor installed in the body and the slidable piston rod of the servo-motor is connected to a displaceable push rod, fitted with guide bars mounted in the body. The conduit connected to the source of flue gases is fitted with a dust- coilecting chamber with flue gas filters. The conduit connected to the source of flue gases is fitted with a fan.
A method of drying fibrous biomass formed into ballots, according to the invention, consisting in pumping a drying medium in the form of flue gases, is characterised in that the raw flue gases are pumped through a ballot, while the flue gases are supplied to a ballot through a pipe with a large diameter that exceeds 300 mm and the dried-up ballot is passed directly over to a combustion chamber. The drying process is realized in an enclosed chamber, located by a boiler for burning straw. Ballots to be dried are transported along the direction perpendicular to the direction of feeding ballots into the boiler.
A device for drying fibrous biomass formed into ballots that consists of a chamber that contains a flue gas inlet is characterised in that the flue gas inlet ends with a pipe of large diameter that exceeds 300 mm and the pipe is fitted with a movable end part, while there is a ballot feeder in the chamber and it is equipped with a pushing frame that encloses the end part of the pipe that supplies flue gases. The end part of the fiue-gas-feeding pipe has got a flange located near the back end and it is joined to the fiue-gas-feeding pipe with a spring.
A method of and a device for drying fibrous biomass formed into ballots allows hot flue gases to be used to dry biomass, while volatile particles of flue gases are simultaneously removed from the flue gases and re-incinerated, as they remain in the biomass subjected to drying. The use if this energy to dry the fuel allows the efficiency of the combustion process in the boiler to be significantly increased. The energy contained in the flue gases generated by incinerating 1 ton of straw suffices to remove about 300÷500 litres of water. It means the it is possible to reduce the degree of moistness of 1 ton of straw from the level of 40%, when straw is perceptibly damp, to the level of about 20% that is the optimum level for batch-charged boilers. The device has also got the function of a flue-gas filter. The passage of flue gases through a high-density fibrous structure results in total removal of volatile particles from the gases. Moreover, sulphur compounds are also picked up from the flue gases, which reduces the level of their emission. The device is an automated line that requires only ballots to be loaded manually onto the feeder.
The method and the device are explained in more detail in the embodiment and in the drawings, where fig. 1 shows the top view of the device, fig. 2 shows the interior of the chamber for drying straw ballots, while fig. 3 is a side view of the feeder located inside the chamber for drying straw ballots.
As shown in fig. 1 - fig. 3, the device has got a chain feeder 1 on which straw ballots are placed in order to be dried and then to be incinerated. The chain feeder 1 is driven with a motor 2, located by the end of the feeder 1. The other end of the chain feeder 1 enters into a drying chamber 3, while the chamber 3 is closed on this side with a partition 4. A ballot is fed with the chain feeder 1 and, when it enters the chamber 3, it is located on a feeding screw 5, presented in fig. 3. The feeding screw 5 has got two tubular guide bars 6 and there is a driving screw 7 between them which is driven with the motor 8 over a chain transmission 9. A pusher 10 is located on the guide bars 6 and it has got a frame 11 in its top part. A flue 12 that supplies flue gases is fixed to the wall of the chamber 3. A large-diameter pipe 13, on which a movable end part 14 connected to the pipe 3 with a spring 15 is mounted, is fixed to the flue 12. The movable end part 14 has got a flange against which the frame 11 rests when it is moved into the back position. Once a ballot is placed on the feeding screw 5, the pusher 10 is moved a small distance forward, so that the spring 15 shifts the end part 14 towards the ballot. The end part 14 cuts into the ballot, so that flue gases are channelled into the ballot. As a result, flue gases from the flue 12 flow through the pipe 13 and the movable end part 14 and penetrate into the ballot, where they leave the majority of pollutants. After a preset time, the motor 8 is switched on and it turns the driving screw 7, which results in shifting the pusher 10 forward. The pusher 10 moves a dried-up ballot into the combustion chamber of a boiler 16, located by the chamber 3. The chamber 3 is closed with the partition 17 on the side of the boiler 16. At the moment the ballot is being shifted, the partition 17 is being lifted up.

Claims

Claims
1. A method of drying fibrous biomass formed into ballots, consisting in pumping a drying medium in the form of flue gases, is characterised in that the raw flue gases are pumped through a ballot, while the flue gases are supplied to a ballot through a pipe{13) with a large diameter that exceeds 300 mm and the dried-up ballot is passed directly over to a combustion chamber.
2. A method according to claim 1, is characterised in that the drying process is realized in an enclosed chamber(3), located by a boiler(16) for burning straw.
3. A method according to claim 1 , is characterised in that the ballots to be dried are transported along the direction perpendicular to the direction of feeding ballots into the boiler(16).
4. A device for drying fibrous biomass formed into ballots that consists of a chamber that contains a flue gas inlet, is characterised in that the flue gas inlet ends with a pipe(13) of large diameter that exceeds 300 mm and the pipe is fitted with a movable end part(14), while there is a ballot feeding screw(5) in the chamber(3) and it is equipped with a pushing frame(11 ) that encloses the end part(14) of the pipe(13) that supplies flue gases.
5. A device according to claim 4, is characterised in that the end part(14) of the flue-gas-feeding pipe(13) has got a flange located near the back end and it is joined to the flue-gas-feeding pipe with a spring(15).
PCT/PL2015/000216 2014-12-31 2015-12-30 A method of and a device for drying fibrous biomass formed into ballots WO2016108705A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PLP.410843 2014-12-31
PL410843A PL231561B1 (en) 2014-12-31 2014-12-31 Method and the device for drying fibrous biomass formed in blocks

Publications (1)

Publication Number Publication Date
WO2016108705A1 true WO2016108705A1 (en) 2016-07-07

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PCT/PL2015/000216 WO2016108705A1 (en) 2014-12-31 2015-12-30 A method of and a device for drying fibrous biomass formed into ballots

Country Status (2)

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WO (1) WO2016108705A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986000390A1 (en) * 1984-06-30 1986-01-16 Bollmann Heinrich Sen Heating boiler for producing energy from straw
PL214569B1 (en) 2009-07-09 2013-08-30 Obrobka Metali I Przetworstwo Tworzyw Sztucznych Metalerg J M J Cieslak Spolka Jawna Device and method of drying fibrous biomass formed into bales

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986000390A1 (en) * 1984-06-30 1986-01-16 Bollmann Heinrich Sen Heating boiler for producing energy from straw
PL214569B1 (en) 2009-07-09 2013-08-30 Obrobka Metali I Przetworstwo Tworzyw Sztucznych Metalerg J M J Cieslak Spolka Jawna Device and method of drying fibrous biomass formed into bales

Also Published As

Publication number Publication date
PL231561B1 (en) 2019-03-29
PL410843A1 (en) 2015-09-28

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