WO2012079589A2 - A method and apparatus for treating a bed of particulate material - Google Patents
A method and apparatus for treating a bed of particulate material Download PDFInfo
- Publication number
- WO2012079589A2 WO2012079589A2 PCT/DK2011/050489 DK2011050489W WO2012079589A2 WO 2012079589 A2 WO2012079589 A2 WO 2012079589A2 DK 2011050489 W DK2011050489 W DK 2011050489W WO 2012079589 A2 WO2012079589 A2 WO 2012079589A2
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- WIPO (PCT)
- Prior art keywords
- flow
- gas
- duct
- treatment gas
- regulation
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
- B01J8/44—Fluidisation grids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/10—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material
- F28C3/12—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material the heat-exchange medium being a particulate material and a gas, vapour, or liquid
- F28C3/16—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material the heat-exchange medium being a particulate material and a gas, vapour, or liquid the particulate material forming a bed, e.g. fluidised, on vibratory sieves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00548—Flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00893—Feeding means for the reactants
- B01J2208/0092—Perforated plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00893—Feeding means for the reactants
- B01J2208/00929—Provided with baffles
Definitions
- the present invention relates to a method for treating a bed of particulate material which is supported by a gas distribution bottom comprising a number of sections, utilizing a treatment gas which via ducts is conducted in sectionalized manner to and directed up through the gas distribution bottom and the bed of material from one or several underlying compartments, the flow of the treatment gas through each duct being regulated by means of a flow regulator provided in each duct in order to compensate, at least in part, for a changing pressure drop through the bed, each flow regulator being automatically movable in direct response to the gas flow rate in the respective duct, where the regulation is effected continuously variably within a operational range about a datum flow rate, the regulator reducing the gas passage area in the duct when the flow begins to rise, and vice versa.
- the invention relates also to an apparatus for carrying out the method according to the invention.
- apparatuses which comprise a gas distribution bottom.
- apparatuses which comprise a gas distribution bottom.
- fluidized bed reactors chemical reactors
- drying apparatus gas-solid heat exchangers and others.
- this is achieved by a method of the kind mentioned in the introduction and being characterized in that an adjustable flow of treatment gas from the respective underlying compartment in a section during operation of the apparatus is allowed to bypass the gas flow regulation taking place in the respective duct.
- an apparatus for treating a bed of particulate material comprising a gas distribution bottom comprising a number of sections for supporting the bed to be treated and being provided with a number of ducts for sectionalized supplying of treatment gas from one or several underlying compartments, each duct having a respective flow regulator which is automatically movable in direct response to the gas flow rate in the respective duct, where the flow regulator provides a continuously variably regulation of the gas flow within a operational range about a datum flow rate, the regulator being arrange to reduce the gas passage area in the duct when the flow begins to rise, and vice versa, and being characterized in that it comprises means for allowing during operation of the apparatus an adjustable flow of treatment gas from the respective underlying compartment in a section to bypass the gas flow regulation taking place in the respective duct.
- the flow rates through the respective sections of the gas distribution bottom can be changed during operation of the apparatus.
- the resultant flow of treatment gas to the respective section of the gas distribution bottom besides from minor leakage gas and idle gas, consists of the sum of the treatment gas flowing through the flow regulator and the adjustable flow of treatment gas being bypassed the flow regulation.
- the resultant flow of treatment gas to the respective section of the gas distribution bottom can be adjusted and fine tuned during operation of the apparatus for obtaining optimum operation in terms of total pressure loss, heat recuperation etc.
- the gas flow regulation taking place in a duct from the respective underlying compartment in a section during operation of the apparatus In order to adjust the flow of treatment gas being bypassed the gas flow regulation taking place in a duct from the respective underlying compartment in a section during operation of the apparatus operation personnel may enter the apparatus. However, it is preferred that the flow of treatment gas being bypassed the gas flow regulation taking place in the respective duct from the respective underlying compartment in a section during operation of the apparatus is adjusted from outside the apparatus.
- the flow of treatment gas being bypassed the gas flow regulation may be led through the gas distribution bottom through separate channels in the section, however, it is preferably mixed with the flow of the treatment gas being regulated before the thus mixed flow of treatment gas is directed up through the gas distribution bottom.
- the means for allowing during operation of the apparatus an adjustable flow of treatment gas from the respective underlying compartment in a section to bypass the gas flow regulation taking place in the respective duct may comprise an opening provided in the respective duct, which opening is situated after the gas flow regulation taking place in the respective duct as viewed in the direction of the flow of treatment gas in the respective duct, and being provided with regulation means, such as damper means.
- the regulation means comprises preferably means for being operated from outside the apparatus.
- the means for allowing during operation of the apparatus an adjustable flow of treatment gas from the respective underlying compartment in a section to bypass the gas flow regulation taking place in the respective duct may comprise a side wall of the duct itself, which side wall is made movable to and fro in respect of the duct and having at both side ends bended wall sections overlapping the two adjacent side walls, respectively, of the duct, thus enabling the width of the duct to be changed, and being provided with means for inducing movement of the movable side wall.
- Fig. 1 shows a first embodiment of an apparatus according to the invention
- Fig. 2 shows a second embodiment of an apparatus according to the invention
- Fig. 3 shows a third embodiment of an apparatus according to the invention.
- Fig. 1 and 2 a section of a cement clinker cooler for cooling hot cement clinker arriving from a kiln, not shown.
- the cooler comprises gas distribution bottom in form of a grate 1 comprising a number of grate sections 1 a for supporting the bed 2 of cement clinker to be treated and is provided with a number of ducts 3 for sectionalized supplying of treatment gas to the grate from one or several underlying compartments 4.
- Each duct 3 is provided with a flow regulator 5 of the kind which is automatically movable in direct response to the gas flow rate in the respective duct and providing a continuously variably regulation of the gas flow within an operational range about a datum flow rate. Further, each regulator 5 is arranged to reduce the gas passage area in the duct
- the grate 1 In order to enabling that the gas flow rates through the respective sections 1 a of the grate 1 can be changed during operation of the cooler, it comprises means for allowing an adjustable flow of treatment gas from the respective underlying compartment 4 in a section 1 a to bypass the gas flow regulation taking place in the respective duct 3.
- said means for allowing an adjustable flow of treatment gas from the respective underlying compartment 4 in a section 1 a to bypass the gas flow regulation taking place in the respective duct 3 comprises an opening 6 provided in the respective duct 3, which opening 6 is situated after the gas flow regulation taking place in the respective duct 3 as viewed in the direction of the flow of treatment gas in the respective duct 3, and being provided with regulation means 7, such as damper means.
- the regulation means comprises preferably means, not shown, for being operated from outside the apparatus.
- said means for allowing an adjustable flow of treatment gas from the respective underlying compartment 4 in a section 1 a to bypass the gas flow regulation taking place in the respective duct 3 comprises a side wall 8 of the duct 3 itself, which side wall is made movable to and fro in respect of the duct, as shown by arrow 9, and having at both side ends bended wall sections 10 overlapping the two adjacent side walls 1 1 , respectively, of the duct 3, thus enabling the width of the duct to be changed, and being provided with means, not shown, for inducing movement of the movable side wall 8.
- the flow of treatment gas being bypassed the gas flow regulation is mixed with the flow of the treatment gas being regulated before the thus resultant mixed flow of treatment gas is directed up through the respective grate section 1 a.
- the cooler operation personnel may during operation of the cooler adjust and fine tune the resultant flow of treatment gas to the respective sections 1 a of the cooler grate 1 in order to obtain optimum operation in terms of total pressure loss, heat recuperation etc.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
A description is made of a method as well as an apparatus for treating a bed (2) of particulate material which is supported by a gas distribution bottom (1) comprising a number of sections (1a), utilizing a treatment gas which via ducts (3) is conducted in sectionalized manner to and directed up through the gas distribution bottom (1) and the bed (2) of material from one or several underlying compartments (4), the flow of the treatment gas through each duct (3) being regulated by means of a flow regulator (5) provided in each duct in order to compensate, at least in part, for a changing pressure drop through the bed, each flow regulator (5) being automatically movable in direct response to the gas flow rate in the respective duct (3), where the regulation is effected continuously variably within a operational range about a datum flow rate, the regulator (5) reducing the gas passage area in the duct (3) when the flow begins to rise, and vice versa. The method and apparatus is peculiar in that an adjustable flow of treatment gas from the respective underlying compartment (4) in a section (1a) during operation of the apparatus is allowed to bypass the gas flow regulation taking place in the respective duct (3). Hereby it is obtained, that the flow rates through the respective sections of the gas distribution bottom can be changed during operation of the apparatus. This is due to the fact that the resultant flow of treatment gas to the respective section of the gas distribution bottom, besides from minor leakage gas and idle gas, consists of the sum of the treatment gas flowing through the flow regulator and the adjustable flow of treatment gas being bypassed the flow regulation. Thus, by having the opportunity during operation of the apparatus to adjust the flow of treatment gas being bypassed the flow regulation the resultant flow of treatment gas to the respective section of the gas distribution bottom can be adjusted and fine tuned during operation of the apparatus for obtaining optimum operation in terms of total pressure loss, heat recuperation etc..
Description
Title: A method and apparatus for treating a bed of particulate material
The present invention relates to a method for treating a bed of particulate material which is supported by a gas distribution bottom comprising a number of sections, utilizing a treatment gas which via ducts is conducted in sectionalized manner to and directed up through the gas distribution bottom and the bed of material from one or several underlying compartments, the flow of the treatment gas through each duct being regulated by means of a flow regulator provided in each duct in order to compensate, at least in part, for a changing pressure drop through the bed, each flow regulator being automatically movable in direct response to the gas flow rate in the respective duct, where the regulation is effected continuously variably within a operational range about a datum flow rate, the regulator reducing the gas passage area in the duct when the flow begins to rise, and vice versa. The invention relates also to an apparatus for carrying out the method according to the invention.
Within the industrial sector there are numerous examples of apparatuses which comprise a gas distribution bottom. As non-limiting examples hereof can be mentioned fluidized bed reactors, chemical reactors, drying apparatus, gas-solid heat exchangers and others.
From EP 848 646 is known a method as well as an apparatus of the above mentioned kind for treating a bed of particulate material. In this document different kinds of flow regulators are shown. Further flow regulators for use in such apparatuses are known from e.g. WO 02/06748 and WO 2005/064256. A common feature of these known flow regulators is that they are all preset before installation into the apparatus to regulate the flow through the respective duct within an operational range about a datum flow rate. In connection with e.g. the operation of an cooler for cooling of cement clinker which is discharged from a kiln installed ahead of the cooler it is a known fact that the clinker is normally distributed on the cooler grate so that the larger clinker lumps are predominantly located at one side of the cooler, whereas the finer clinker lumps are located at the other side. Also, the thickness of the clinker bed may exhibit variations both longitudinally and transversely through the cooler. The known flow regulators are designed to deal with such uneven distribution of the clinker on the cooler grate and probably they all work fine as long as the conditions do not change. However, if the production rate is changed, it is also often necessary to change
the flow rates through the respective sections of the cooler grate for better operation under the changed conditions, viz. changed material bed thickness and clinker size distribution. With the known flow regulators this is normally done by changing the presetting of the flow regulators or changing the flow regulators per se, and such changing operations are not possible without shutting down the cooler. Further, during commission of e.g. a new cement clinker cooler it will often be necessary to change flow regulators several times before an acceptable operation is obtained, which each time also of course requires shut down of the cooler when using the known flow regulators. In addition, the known flow regulators are suited for fine tuning of the operation, e.g. in terms of total pressure loss and heat recuperation, during operation.
It is the objective of the present invention to provide a method as well as an apparatus for treating a bed of particulate material by means of which the above drawbacks can be eliminated or at least reduced.
According to the invention this is achieved by a method of the kind mentioned in the introduction and being characterized in that an adjustable flow of treatment gas from the respective underlying compartment in a section during operation of the apparatus is allowed to bypass the gas flow regulation taking place in the respective duct.
The objective is further achieved by means of an apparatus for treating a bed of particulate material, the apparatus comprising a gas distribution bottom comprising a number of sections for supporting the bed to be treated and being provided with a number of ducts for sectionalized supplying of treatment gas from one or several underlying compartments, each duct having a respective flow regulator which is automatically movable in direct response to the gas flow rate in the respective duct, where the flow regulator provides a continuously variably regulation of the gas flow within a operational range about a datum flow rate, the regulator being arrange to reduce the gas passage area in the duct when the flow begins to rise, and vice versa, and being characterized in that it comprises means for allowing during operation of the apparatus an adjustable flow of treatment gas from the respective underlying compartment in a section to bypass the gas flow regulation taking place in the respective duct.
Hereby it is obtained, that the flow rates through the respective sections of the gas distribution bottom can be changed during operation of the apparatus. This
is due to the fact that the resultant flow of treatment gas to the respective section of the gas distribution bottom, besides from minor leakage gas and idle gas, consists of the sum of the treatment gas flowing through the flow regulator and the adjustable flow of treatment gas being bypassed the flow regulation. Thus, by having the opportunity during operation of the apparatus to adjust the flow of treatment gas being bypassed the flow regulation the resultant flow of treatment gas to the respective section of the gas distribution bottom can be adjusted and fine tuned during operation of the apparatus for obtaining optimum operation in terms of total pressure loss, heat recuperation etc..
In order to adjust the flow of treatment gas being bypassed the gas flow regulation taking place in a duct from the respective underlying compartment in a section during operation of the apparatus operation personnel may enter the apparatus. However, it is preferred that the flow of treatment gas being bypassed the gas flow regulation taking place in the respective duct from the respective underlying compartment in a section during operation of the apparatus is adjusted from outside the apparatus.
The flow of treatment gas being bypassed the gas flow regulation may be led through the gas distribution bottom through separate channels in the section, however, it is preferably mixed with the flow of the treatment gas being regulated before the thus mixed flow of treatment gas is directed up through the gas distribution bottom. The means for allowing during operation of the apparatus an adjustable flow of treatment gas from the respective underlying compartment in a section to bypass the gas flow regulation taking place in the respective duct may comprise an opening provided in the respective duct, which opening is situated after the gas flow regulation taking place in the respective duct as viewed in the direction of the flow of treatment gas in the respective duct, and being provided with regulation means, such as damper means. The regulation means comprises preferably means for being operated from outside the apparatus.
Alternatively, the means for allowing during operation of the apparatus an adjustable flow of treatment gas from the respective underlying compartment in a section to bypass the gas flow regulation taking place in the respective duct may comprise a side wall of the duct itself, which side wall is made movable to
and fro in respect of the duct and having at both side ends bended wall sections overlapping the two adjacent side walls, respectively, of the duct, thus enabling the width of the duct to be changed, and being provided with means for inducing movement of the movable side wall.
The invention will now be described in further details with reference to the attached drawing, being diagrammatical, and where
Fig. 1 shows a first embodiment of an apparatus according to the invention,
Fig. 2 shows a second embodiment of an apparatus according to the invention, and
Fig. 3 shows a third embodiment of an apparatus according to the invention.
In Fig. 1 and 2 is seen a section of a cement clinker cooler for cooling hot cement clinker arriving from a kiln, not shown. The cooler comprises gas distribution bottom in form of a grate 1 comprising a number of grate sections 1 a for supporting the bed 2 of cement clinker to be treated and is provided with a number of ducts 3 for sectionalized supplying of treatment gas to the grate from one or several underlying compartments 4. Each duct 3 is provided with a flow regulator 5 of the kind which is automatically movable in direct response to the gas flow rate in the respective duct and providing a continuously variably regulation of the gas flow within an operational range about a datum flow rate. Further, each regulator 5 is arranged to reduce the gas passage area in the duct
3 when the flow begins to rise, and vice versa.
In order to enabling that the gas flow rates through the respective sections 1 a of the grate 1 can be changed during operation of the cooler, it comprises means for allowing an adjustable flow of treatment gas from the respective underlying compartment 4 in a section 1 a to bypass the gas flow regulation taking place in the respective duct 3.
In Fig. 1 and 2 said means for allowing an adjustable flow of treatment gas from the respective underlying compartment 4 in a section 1 a to bypass the gas flow regulation taking place in the respective duct 3 comprises an opening 6 provided in the respective duct 3, which opening 6 is situated after the gas flow
regulation taking place in the respective duct 3 as viewed in the direction of the flow of treatment gas in the respective duct 3, and being provided with regulation means 7, such as damper means. In this way, the flow of treatment gas being bypassed the gas flow regulation is mixed with the flow of the treatment gas being regulated before the thus resultant mixed flow of treatment gas is directed up through the respective grate section 1 a. The regulation means comprises preferably means, not shown, for being operated from outside the apparatus. In Fig. 3 said means for allowing an adjustable flow of treatment gas from the respective underlying compartment 4 in a section 1 a to bypass the gas flow regulation taking place in the respective duct 3 comprises a side wall 8 of the duct 3 itself, which side wall is made movable to and fro in respect of the duct, as shown by arrow 9, and having at both side ends bended wall sections 10 overlapping the two adjacent side walls 1 1 , respectively, of the duct 3, thus enabling the width of the duct to be changed, and being provided with means, not shown, for inducing movement of the movable side wall 8. In this way, the flow of treatment gas being bypassed the gas flow regulation is mixed with the flow of the treatment gas being regulated before the thus resultant mixed flow of treatment gas is directed up through the respective grate section 1 a.
Thus, in all described embodiments the cooler operation personnel may during operation of the cooler adjust and fine tune the resultant flow of treatment gas to the respective sections 1 a of the cooler grate 1 in order to obtain optimum operation in terms of total pressure loss, heat recuperation etc.
Claims
1. A method for treating a bed (2) of particulate material which is supported by a gas distribution bottom (1 ) comprising a number of sections (1 a), utilizing a treatment gas which via ducts (3) is conducted in sectionalized manner to and directed up through the gas distribution bottom (1 ) and the bed (2) of material from one or several underlying compartments (4), the flow of the treatment gas through each duct (3) being regulated by means of a flow regulator (5) provided in each duct in order to compensate, at least in part, for a changing pressure drop through the bed, each flow regulator (5) being automatically movable in direct response to the gas flow rate in the respective duct (3), where the regulation is effected continuously variably within a operational range about a datum flow rate, the regulator (5) reducing the gas passage area in the duct (3) when the flow begins to rise, and vice versa, characterized in that an adjustable flow of treatment gas from the respective underlying compartment (4) in a section (1 a) during operation of the apparatus is allowed to bypass the gas flow regulation taking place in the respective duct (3).
2. A method according to claim 1 characterized in that the flow of treatment gas being bypassed the gas flow regulation taking place in the respective duct (3) from the respective underlying compartment (4) in a section (1 a) during operation of the apparatus is adjusted from outside the apparatus.
3. A method according to claim 1 , characterized in that the flow of treatment gas being bypassed the gas flow regulation is mixed with the flow of the treatment gas being regulated before the thus mixed flow of treatment gas is directed up through the gas distribution bottom (1 ).
4. An apparatus for treating a bed (2) of particulate material, the apparatus comprising a gas distribution bottom (1 ) comprising a number of sections (1 a) for supporting the bed (2) to be treated and being provided with a number of ducts (3) for sectionalized supplying of treatment gas from one or several underlying compartments (4), each duct (3) having a respective flow regulator (5) which is automatically movable in direct response to the gas flow rate in the respective duct (4), where the flow regulator (5) provides a continuously variably regulation of the gas flow within a operational range about a datum flow rate, the regulator (5) being arrange to reduce the gas passage area in the duct (3) when the flow begins to rise, and vice versa, characterized in that it comprises means for allowing during operation of the apparatus an adjustable flow of treatment gas from the respective underlying compartment (4) in a section (1a) to bypass the gas flow regulation taking place in the respective duct (3).
5. An apparatus according to claim 4, characterized in that the means for allowing during operation of the apparatus an adjustable flow of treatment gas from the respective underlying compartment (4) in a section (1a) to bypass the gas flow regulation taking place in the respective duct (3) comprises an opening (6) provided in the respective duct (3), which opening (6) is situated after the gas flow regulation taking place in the respective duct (3) as viewed in the direction of the flow of treatment gas in the respective duct (3), and being provided with regulation means (7), such as damper means.
6. An apparatus according to claim 5, characterized in that the regulation means (7) comprises means for being operated from outside the apparatus.
7. An apparatus according to claim 4, characterized in that the means for allowing during operation of the apparatus an adjustable flow of treatment gas from the respective underlying compartment (4) in a section (1a) to bypass the gas flow regulation taking place in the respective duct (3) comprises a side wall (8) of the duct (3) itself, which side wall (8) is made movable to and fro in respect of the duct (3) and having at both side ends bended wall sections (10) overlapping the two adjacent side walls (11), respectively, of the duct (3), thus enabling the width of the duct (3) to be changed, and being provided with means for inducing movement of the movable side wall (8).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DKPA201001131 | 2010-12-16 | ||
| DKPA201001131 | 2010-12-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2012079589A2 true WO2012079589A2 (en) | 2012-06-21 |
| WO2012079589A3 WO2012079589A3 (en) | 2012-08-16 |
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ID=45445686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DK2011/050489 WO2012079589A2 (en) | 2010-12-16 | 2011-12-16 | A method and apparatus for treating a bed of particulate material |
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| Country | Link |
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| WO (1) | WO2012079589A2 (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1221984B (en) * | 1965-07-15 | 1966-07-28 | Benno Schilde Maschb A G | Fluid bed dryer with sieve bottom |
| JPS57172105A (en) * | 1981-04-14 | 1982-10-22 | Hitachi Zosen Corp | Fluidized bed boiler for vessel |
| EP0245630A1 (en) * | 1986-05-16 | 1987-11-19 | Krupp Polysius Ag | Cooling apparatus |
| US5895213A (en) * | 1995-05-25 | 1999-04-20 | Chichibu Onoda Cement Corp. | Clinker cooler |
| US6082021A (en) * | 1995-08-24 | 2000-07-04 | F. L. Smidth & Co. A/S | Method and apparatus for treating a bed of particulate material |
| WO2006005997A1 (en) * | 2004-07-02 | 2006-01-19 | Flsmidth A/S | Method and cooler for cooling hot particulate material |
| DE102004060207A1 (en) * | 2004-12-14 | 2006-06-22 | Polysius Ag | Controlling cooler for piece-form material, using cooling gas passed upwards for material on grid, using comparison of stored and measured operating parameters to adjust air distributor flap position |
| WO2006119768A1 (en) * | 2005-05-10 | 2006-11-16 | FØNS TECHNOLOGY ApS | Method and apparatus for treating a bed of particulate material |
| WO2009156228A1 (en) * | 2008-06-26 | 2009-12-30 | Flsmidth A/S | Method and cooler for cooling hot particulate material |
-
2011
- 2011-12-16 WO PCT/DK2011/050489 patent/WO2012079589A2/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1221984B (en) * | 1965-07-15 | 1966-07-28 | Benno Schilde Maschb A G | Fluid bed dryer with sieve bottom |
| JPS57172105A (en) * | 1981-04-14 | 1982-10-22 | Hitachi Zosen Corp | Fluidized bed boiler for vessel |
| EP0245630A1 (en) * | 1986-05-16 | 1987-11-19 | Krupp Polysius Ag | Cooling apparatus |
| US5895213A (en) * | 1995-05-25 | 1999-04-20 | Chichibu Onoda Cement Corp. | Clinker cooler |
| US6082021A (en) * | 1995-08-24 | 2000-07-04 | F. L. Smidth & Co. A/S | Method and apparatus for treating a bed of particulate material |
| WO2006005997A1 (en) * | 2004-07-02 | 2006-01-19 | Flsmidth A/S | Method and cooler for cooling hot particulate material |
| DE102004060207A1 (en) * | 2004-12-14 | 2006-06-22 | Polysius Ag | Controlling cooler for piece-form material, using cooling gas passed upwards for material on grid, using comparison of stored and measured operating parameters to adjust air distributor flap position |
| WO2006119768A1 (en) * | 2005-05-10 | 2006-11-16 | FØNS TECHNOLOGY ApS | Method and apparatus for treating a bed of particulate material |
| WO2009156228A1 (en) * | 2008-06-26 | 2009-12-30 | Flsmidth A/S | Method and cooler for cooling hot particulate material |
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| Publication number | Publication date |
|---|---|
| WO2012079589A3 (en) | 2012-08-16 |
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