EP0949476A2 - Procédé et dispositif pour le séchage et/ou le chauffage des matières pulvérulentes respectivement poudreuses - Google Patents

Procédé et dispositif pour le séchage et/ou le chauffage des matières pulvérulentes respectivement poudreuses Download PDF

Info

Publication number: EP0949476A2
Authority: EP; European Patent Office
Prior art keywords: combustion chamber; feed; feed material; annular gap; flue gas
Prior art date: 1998-03-04
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP99104276A

Other languages

German (de)

English (en)

Other versions

EP0949476A3 (fr

EP0949476B1 (fr

Inventor

Jens Peter Nissen

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Lintec GmbH and Co KG

Original Assignee

Individual

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.)

1998-03-04

Filing date

1999-03-03

Publication date

1999-10-13

1999-03-03 Application filed by Individual filed Critical Individual

1999-10-13 Publication of EP0949476A2 publication Critical patent/EP0949476A2/fr

1999-12-29 Publication of EP0949476A3 publication Critical patent/EP0949476A3/fr

2005-02-09 Application granted granted Critical

2005-02-09 Publication of EP0949476B1 publication Critical patent/EP0949476B1/fr

2019-03-03 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
- F27B15/003—Cyclones or chain of cyclones

Definitions

the invention relates to a method and one used to carry it out Device for drying and heating dusty or fine-grained Fabrics.
feedstocks Known methods for drying and heating dusty or fine-grained substances, hereinafter referred to as feedstocks, use the substance-specific property - very fast heat transfer between Heat transfer medium and feed material as a result of the small grain size - only conditionally out.
the object of the invention is to achieve the highest possible Flue gas temperatures and low additional air balance, below Utilization of the short given by the grain size Heat transfer times between the heat transfer medium and the input material To dry and heat feed material without a Temperature damage to the system or the feed material occurs.
the method according to the invention uses the fineness (small Particle size) of the feed material, which has a quick heat balance the surrounding medium. Furthermore, the pneumatic Conveyability of the input material is used, which is simultaneously a homogeneous Mixing of the input material with the pumped medium causes.
the conveying air acts as a temperature buffer too strong and fast Temperature rise counter. This property can be exploited by Cyclone effect can be increased.
the input material passed tangentially into the combustion chamber. Due to the centrifugal force Feed material pressed against the wall of the outer chamber, so that the Conveying air between the feed and the burner flame Can form protective layer.
the direct action of the Burner flame can be avoided by using e.g. one External chamber is supplied, which is an annular gap around the combustion chamber forms.
one External chamber is supplied, which is an annular gap around the combustion chamber forms.
Flue gas and feed material are first merged after passing the burner flame.
the pneumatic feed pressure of the feed material can be brought together used for intensive mixing of the feed material with the flue gases become.
the Venturi principle is used here.
the device essentially consists of a combustion chamber 1, in which the burner flame 4 generated by a burner 3 burns out.
the flue gas 5 is discharged through the discharge 14.
the feed material 6, distributed over the circumference of the combustion chamber wall 2, is likewise fed to the combustion chamber 1 on the burner side.
the feed material 6 heats up while the flue gases 5 cool down.
the even distribution of the feed material 6 over the circumference of the combustion chamber wall 2 can be achieved, for example, by the material input 7 is carried out by means of pneumatic conveying by tangential blowing in of the feed 6.
the cyclone effect that occurs causes the feed 6 to concentrate on the combustion chamber wall 2 and the conveying air serves as an insulating layer between the feed 6 and the burner flame 4.
the arrangement of the device not still tied to the vertical setup.
the combustion chamber 1 is additionally formed by an outer chamber 9 envelops.
the material entry 7 takes place in the annular gap 8 generated thereby.
the combustion chamber 1 can, as shown in Fig. 2, as a pipe section be designed so that flue gas 5 and feed material 6 only in the Mix subsequent mixing chamber 12. The mixing is done by intensifies the feed pressure of the feed material 6. But it is also conceivable that there is no connection between combustion chamber 1 and annular gap 8, so that there is no mixing of the feed material 6 with the flue gas 5 is coming. This design also enables operation in the Countercurrent process, i.e. the direction of flow of the feed 6 that of the flue gas 5 opposite.
Fig. 3 shows a device in which the combustion chamber 1 in addition a combustion chamber floor 10 is completed.
the combustion chamber floor 10 separates combustion chamber 1 and mixing chamber 12.
the feed 6 is also in the Mixing chamber 12 passed in Fig. 3, for example by a deflection approx. 180 °. Due to the delivery pressure of the feed 6 takes place in the Mixing chamber 12 intensive mixing with the flue gas 5. From the Mixing chamber 12 passes the flue gas feed mixture through the Catch area 13 for discharge 14.
solutions are also conceivable for which the flue gas is discharged without into the mixing chamber 12 arrive and without mixing with the insert 6.
Fig. 4 shows a device that an even more intensive mixing of the Feed 6 with the flue gas 5 causes, with simultaneous suction the flue gases 5 from the combustion chamber 1.
the annular gap 8 for the feed material 6 in the area of merging with the flue gas 5 as Nozzle 11 formed.
the combustion chamber floor 10 is adapted and forms with the outer chamber 9, the driving and mixing chamber 12 of a jet pump. This process, also known as the Venturi principle, also takes place in the Water jet pump application.
the capture space 13 can also here by the Shaping of the combustion chamber bottom 10 are formed by the same.

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Dispersion Chemistry (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Drying Of Solid Materials (AREA)
Crucibles And Fluidized-Bed Furnaces (AREA)

EP99104276A 1998-03-04 1999-03-03 Procédé et dispositif pour le séchage et le chauffage des matières pulvérulentes respectivement poudreuses Expired - Lifetime EP0949476B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19809067A DE19809067A1 (de)	1998-03-04	1998-03-04	Verfahren und Vorrichtung zur Trocknung und/oder Erhitzung staubförmiger bzw. feinkörniger Stoffe
DE19809067		1998-03-04

Publications (3)

Publication Number	Publication Date
EP0949476A2 true EP0949476A2 (fr)	1999-10-13
EP0949476A3 EP0949476A3 (fr)	1999-12-29
EP0949476B1 EP0949476B1 (fr)	2005-02-09

Family

ID=7859577

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP99104276A Expired - Lifetime EP0949476B1 (fr)	1998-03-04	1999-03-03	Procédé et dispositif pour le séchage et le chauffage des matières pulvérulentes respectivement poudreuses

Country Status (4)

Country	Link
EP (1)	EP0949476B1 (fr)
AT (1)	ATE289049T1 (fr)
DE (2)	DE19809067A1 (fr)
ES (1)	ES2236978T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN119178167B (zh) *	2024-10-10	2025-09-23	北京航空航天大学	一种应用于高高空低压环境的h2燃烧室头部结构

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2973727A (en) *	1957-02-22	1961-03-07	Orr & Sembower Inc	Pulverised fuel burner
US3596890A (en) *	1968-02-19	1971-08-03	Alastair G M Small	Drying apparatus
GB1208033A (en) *	1968-05-09	1970-10-07	Stanley Horrocks	A method of and apparatus for mixing a high temperature gas stream containing products of combustion with a low temperature gas or air stream containing solid particles
GB1453834A (en) *	1973-02-23	1976-10-27	Barr Murphy Ltd	Method of and apparatus for drying particulate materials s
GB1570276A (en) *	1976-12-31	1980-06-25	White J	Method and apparatus for heating particulate solids
DE2808874C2 (de) *	1978-03-02	1985-01-24	Smit Ovens Nijmegen B.V., Nijmegen	Vorrichtung zur Verbrennung von in einem Gasstrom mitgeführten brennbaren Stoffen bzw. zur Erwärmung von Luft
US4190415A (en) *	1978-07-10	1980-02-26	Singrey Raymond E	Chip drying and cleaning device
FR2438679A1 (fr) *	1978-10-11	1980-05-09	Nal Etu Exper Machinisme Centr	Procede et appareil de traitement thermique de matieres combustibles
FR2543280B1 (fr) *	1983-03-23	1987-12-04	Gaz De France	Procede et installation de traitement par voie thermique de produits divises
US5014631A (en) *	1988-06-09	1991-05-14	Jgc Corporation	Cyclone furnace
DE3915740A1 (de) *	1989-05-13	1990-11-15	Ludger Schumacher	Einrichtung zur durchfuehrung von hochtemperaturprozessen
US5007181A (en) *	1990-01-22	1991-04-16	Gte Products Corporation	Deagglomerating direct-fired flash dryer for drying stir-in phosphors and method of using same
DE4115348C2 (de) *	1991-05-10	2000-08-10	Deutz Ag	Verfahren zur Hochtemperaturbehandlung von feinkörnigen Feststoffen in einem Schmelzzyklon
DE4123306C2 (de) *	1991-07-13	2000-05-25	Deutz Ag	Anlage zur thermischen Behandlung von mehlförmigen Rohmaterialien
DK138991A (da) *	1991-07-24	1993-01-25	Cimbria Unigrain Ltd	Apparat til toerring af slam og lignende

1998
- 1998-03-04 DE DE19809067A patent/DE19809067A1/de not_active Ceased
1999
- 1999-03-03 AT AT99104276T patent/ATE289049T1/de active
- 1999-03-03 ES ES99104276T patent/ES2236978T3/es not_active Expired - Lifetime
- 1999-03-03 DE DE59911572T patent/DE59911572D1/de not_active Expired - Lifetime
- 1999-03-03 EP EP99104276A patent/EP0949476B1/fr not_active Expired - Lifetime

Also Published As

Publication number	Publication date
ATE289049T1 (de)	2005-02-15
EP0949476A3 (fr)	1999-12-29
DE19809067A1 (de)	1999-09-09
ES2236978T3 (es)	2005-07-16
DE59911572D1 (de)	2005-03-17
EP0949476B1 (fr)	2005-02-09

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