WO2011133321A2 - Solid feed guide apparatus for a solid feed pump - Google Patents
Solid feed guide apparatus for a solid feed pump Download PDFInfo
- Publication number
- WO2011133321A2 WO2011133321A2 PCT/US2011/031315 US2011031315W WO2011133321A2 WO 2011133321 A2 WO2011133321 A2 WO 2011133321A2 US 2011031315 W US2011031315 W US 2011031315W WO 2011133321 A2 WO2011133321 A2 WO 2011133321A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- solid feed
- rotor
- curved passage
- guide
- feed guide
- Prior art date
Links
- 239000007787 solid Substances 0.000 title claims abstract description 131
- 230000003068 static effect Effects 0.000 claims description 18
- 239000004449 solid propellant Substances 0.000 claims description 14
- 239000007789 gas Substances 0.000 description 39
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 20
- 239000000446 fuel Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 11
- 239000013618 particulate matter Substances 0.000 description 11
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- 230000020169 heat generation Effects 0.000 description 8
- 230000035882 stress Effects 0.000 description 8
- 229910002091 carbon monoxide Inorganic materials 0.000 description 7
- 239000002783 friction material Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000002309 gasification Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000008642 heat stress Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000000197 pyrolysis Methods 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 3
- 229910000669 Chrome steel Inorganic materials 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002154 agricultural waste Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 239000011269 tar Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
- F02C3/22—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being gaseous at standard temperature and pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
- F02C3/26—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being solid or pulverulent, e.g. in slurry or suspension
- F02C3/28—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being solid or pulverulent, e.g. in slurry or suspension using a separate gas producer for gasifying the fuel before combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/18—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/428—Discharge tongues
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/60—Assembly methods
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
Definitions
- the subject matter disclosed herein relates to a pump for a solid, such as particulate matter.
- a typical pump designed for solids, such as particulate matter, has a single continuous channel.
- the pump may be a rotary pump that drives the solids along a circular path.
- the rotary pump has stationary and rotating components that interface with one another.
- the flow of solids at the inlet and outlet of the pump may cause high stresses and friction between the stationary and rotating components of the pump, thereby causing high heat generation in the pump.
- a system in a first embodiment, includes a solid fuel pump.
- the solid fuel pump includes a housing, a rotor disposed in the housing; a curved passage disposed between the rotor and the housing, an inlet port coupled to the curved passage, an outlet port coupled to the curved passage, a solid fuel guide extending across the curved passage, and a first roller at an interface between the solid fuel guide and the rotor.
- a system in a second embodiment, includes a solid feed pump.
- the solid feed pump includes a housing, a rotor disposed in the housing, a curved passage disposed between the rotor and the housing, an inlet port coupled to the curved 8.11 outlet port coupled to the curved passage, a solid feed guide extending across the curved passage, and multiple discrete contacts distributed along an interface between the solid feed guide and the rotor.
- a system in a third embodiment, includes a solid feed pump.
- the solid feed pump includes a housing, a rotor disposed in the housing, a curved passage disposed between the rotor and the housing, an inlet port coupled to the curved passage, an outlet port coupled to the curved passage, a solid feed guide extending across the curved passage, and a discrete static contact at an interface between the solid feed guide and the rotor.
- FIG. 1 is a schematic block diagram of an embodiment of an integrated gasification combined cycle (IGCC) power plant utilizing a solid feed pump;
- IGCC integrated gasification combined cycle
- FIG. 2 is a cross-sectional side view of an embodiment of a solid feed pump
- FIG. 3 is a cross-sectional side view of an embodiment of a solid feed guide
- FIG. 4 is a cross-sectional side view of another embodiment of a solid feed guide
- FIG. 5 is a cross-sectional side view of an embodiment of a bearing, as shown in FIG. 3, disposed in a recess of the solid feed guide;
- FIG. 6 is a face view of an embodiment of a solid feed guide, taken along line 6-6 of FIG. 3; [00141 FIG. 7 view of an embodiment of a solid feed guide, taken along line 6-6 of FIG. 3;
- FIG. 8 is a perspective view of an embodiment of a solid feed guide
- FIG. 9 is a side view of a solid feed guide with a movable discrete contact located behind the solid feed guide.
- FIG. 10 is a cross-sectional side view of a solid feed guide with a plurality of adjustable movable discrete contacts.
- Embodiments of the present disclosure include a solid feed pump with a solid feed guide at an inlet and/or outlet, wherein the solid feed guide includes unique features to increase support, reduce friction, reduce stresses, and reduce heat generation at an interface between the solid feed guide and a rotor.
- the unique features may include one or more static or movable contacts at the interface between the solid feed guide and the rotor.
- the contacts may include curved protrusions, such as semi-spherical, cylindrical, or convex protrusions, at discrete points between the solid feed guide and the rotor.
- the contacts may include rollers, such as cylindrical or spherical rollers.
- the contacts are disposed directly between the solid feed guide and the rotor, whereas other embodiments position the contacts at an offset from the interface. In each of the disclosed embodiments, the contacts reduce friction, wear, heat generation, and stresses at the interface.
- FIG. 1 is a diagram of an embodiment of an integrated gasification combined cycle (IGCC) system 100 utilizing one or more solid feed pumps 10 with unique features at a rotating interface as mentioned above.
- the solid feed pump 10 may be a posimetric pump.
- the term "posimetric" may be defined as capable of metering (e.g., measuring an amount of) and positively displacing (e.g., trapping and forcing displacement of) a substance being delivered by the pump 10.
- the pump 10 is able to meter and positively displace a defined volume of a substance, such as a solid fuel feedstock.
- the pump path may have a circular shape or curved shape.
- the disclosed embodiments of the solid feed pump 10 may be used in any suitable application (e.g., production of chemicals, fertilizers, substitute natural gas, transportation fuels, or hydrogen).
- any suitable application e.g., production of chemicals, fertilizers, substitute natural gas, transportation fuels, or hydrogen.
- the following discussion of the IGCC system 100 is not intended to limit the disclosed embodiments to IGCC.
- the IGCC system 100 produces and burns a synthetic gas, i.e., syngas, to generate electricity.
- Elements of the IGCC system 100 may include a fuel source 102, such as a solid feed, that may be utilized as a source of energy for the IGCC.
- the fuel source 102 may include coal, petroleum coke, biomass, wood-based materials, agricultural wastes, tars, asphalt, or other carbon containing items.
- the solid fuel of the fuel source 102 may be passed to a feedstock preparation unit 104.
- the feedstock preparation unit 104 may, for example, resize or reshape the fuel source 102 by chopping, milling, shredding, pulverizing, briquetting, or palletizing the fuel source 102 to generate a dry feedstock (e.g., particulate matter).
- a dry feedstock e.g., particulate matter
- the solid feed pump 10 delivers the feedstock from the feedstock preparation unit 104 to a gasifier 106.
- the solid feed pump 10 may be configured to meter and pressurize the fuel source 102 received from the feedstock preparation unit 104.
- the gasifier 106 may convert the feedstock into a syngas, e.g., a combination of carbon monoxide and hydrogen. This conversion may be accomplished by subjecting the feedstock to a controlled amount of steam and oxygen at elevated pressures, e.g., from approximately 20 bar to 85 bar, and temperatures, e.g., approximately 700 degrees Celsius to 1600 degrees Celsius, depending on the type of gasifier 106 utilized.
- the gasification process may include the feedstock undergoing a pyrolysis process, whereby the feedstock is heated. Temperatures inside the gasifier 106 may vary during the pyrolysis process, depending on the fuel source 102 utilized to generate the feedstock. The heating of the feedstock during the pyrolysis process may generate a solid, (e.g., char), and residue gases, (e.g., carbon monoxide, hydrogen, and nitrogen). The char remaining from the feedstock from the pyrolysis process may only weigh up to approximately 30% of the weight of the original feedstock.
- a solid e.g., char
- residue gases e.g., carbon monoxide, hydrogen, and nitrogen
- a partial oxidation process may then occur in the gasifier 106.
- the combustion may include introducing oxygen to the char and residue gases.
- the char and residue gases may react with the oxygen to form carbon dioxide and carbon monoxide, which provides heat for the gasification reactions.
- the temperatures during the partial oxidation process may range from approximately 700 degrees Celsius to 1600 degrees Celsius.
- Steam may be introduced into the gasifier 106 during gasification.
- the char may react with the carbon dioxide and steam to produce carbon monoxide and hydrogen at temperatures ranging from approximately 800 degrees Celsius to 1 100 degrees Celsius.
- the gasifier utilizes steam and oxygen to allow some of the feedstock to be "burned" to produce carbon monoxide and release energy, which drives a second reaction that converts further feedstock to hydrogen and additional carbon dioxide.
- a resultant gas is manufactured by the gasifier 106.
- This resultant gas may include approximately 85% of carbon monoxide and hydrogen in equal proportions, as well as C3 ⁇ 4, HC1, HF, COS, NH 3 , HCN, and H 2 S (based on the sulfur content of the feedstock).
- This resultant gas may be termed untreated, raw, or sour syngas, since it contains, for example, 3 ⁇ 4S.
- the gasifier 106 may also generate waste, such as slag 108, which may be a wet ash material. This slag 108 may be removed from the gasifier 106 and disposed of, for example, as road base or as another building material.
- a syngas cooler 107 Prior to cleaning the raw syngas, a syngas cooler 107 may be utilized to cool the hot syngas. The cooling of the syngas may generate high pressure steam which may be utilized to produce electrical power as described below.
- a gas cleaning unit 110 may be utilized to clean the raw syngas. The gas cleaning unit 110 may scrub the raw syngas to remove the HC1, HF, COS, HCN, and H 2 S from the raw syngas, which may include separation of sulfur 111 in a sulfur processor 112 by, for example, an acid gas removal process in the sulfur processor 112. Furthermore, the gas cleaning unit 110 may separate salts 113 from the raw syngas via a water treatment unit 1 14 that may utilize water purification techniques to generate usable salts 1 13 from the raw syngas.
- the gas from the gas cleaning unit 110 may include treated, sweetened, and/or purified syngas, (e.g., the sulfur 1 1 1 has been removed from the syngas), with trace amounts of other chemicals, e.g., NH 3 (ammonia) and CH 4 (methane).
- syngas e.g., the sulfur 1 1 1 has been removed from the syngas
- trace amounts of other chemicals e.g., NH 3 (ammonia) and CH 4 (methane).
- a gas processor 116 may be utilized to remove residual gas components 1 17 from the treated syngas such as, ammonia and methane, as well as methanol or any residual chemicals. However, removal of residual gas components 117 from the treated syngas is optional, since the treated syngas may be utilized as a fuel even when containing the residual gas components 1 17, e.g., tail gas. At this point, the treated syngas may include approximately 3% CO, approximately 55% H 2 , and approximately 40% C0 2 and is substantially stripped of H 2 S. This treated syngas may be transmitted to a combustor 120, e.g., a combustion chamber, of turbine engine 118 as combustible fuel.
- a combustor 120 e.g., a combustion chamber
- the C0 2 may be removed from the treated syngas prior to transmission to the gas turbine engine.
- the IGCC system 100 may further include an air separation unit (ASU) 122.
- the ASU 122 may operate to separate air into component gases by, for example, distillation techniques.
- the ASU 122 may separate oxygen from the air supplied to it from a supplemental air compressor 123, and the ASU 122 may transfer the separated oxygen to the gasifier 106. Additionally the ASU 122 may transmit separated nitrogen to a diluent nitrogen (DGAN) compressor 124.
- DGAN diluent nitrogen
- the DGAN compressor 124 may compress the nitrogen received from the ASU 122 at least to pressure levels equal to those in the combustor 120, so as not to interfere with the proper combustion of the syngas. Thus, once the DGAN compressor 124 has adequately compressed the nitrogen to a proper level, the DGAN compressor 124 may transmit the compressed nitrogen to the combustor 120 of the gas turbine engine 1 18.
- the nitrogen may be used as a diluent to facilitate control of emissions, for example.
- the compressed nitrogen may be transmitted from the DGAN compressor 124 to the combustor 120 of the gas turbine engine 1 18.
- the gas turbine engine 1 18 may include a turbine 130, a drive shaft 131 and a compressor 132, as well as the combustor 120.
- the combustor 120 may receive fuel, such as syngas, which may be injected under pressure from fuel nozzles. This fuel may be mixed with compressed air as well as compressed nitrogen from the DGAN compressor 124, and combusted within combustor 120. This combustion may create hot pressurized exhaust gases.
- the combustor 120 may direct the exhaust gases towards an exhaust outlet of the turbine 130. As the exhaust gases from the combustor 120 pass through the turbine 130, the exhaust gases force turbine blades in the turbine 130 to rotate the drive shaft 131 along an axis of the gas turbine engine 1 18. As illustrated, the drive shaft 131 is connected to various components of the gas turbine engine 1 18, including the compressor 132. [0032] The drive shaft 131 may connect the turbine 130 to the compressor 132 to form a rotor. The compressor 132 may include blades coupled to the drive shaft 131. Thus, rotation of turbine blades in the turbine 130 may cause the drive shaft 131 connecting the turbine 130 to the compressor 132 to rotate blades within the compressor 132.
- This rotation of blades in the compressor 132 causes the compressor 132 to compress air received via an air intake in the compressor 132.
- the compressed air may then be fed to the combustor 120 and mixed with fuel and compressed nitrogen to allow for higher efficiency combustion.
- Drive shaft 131 may also be connected to load 134, which may be a stationary load, such as an electrical generator for producing electrical power, for example, in a power plant.
- load 134 may be any suitable device that is powered by the rotational output of the gas turbine engine 118.
- the IGCC system 100 also may include a steam turbine engine 136 and a heat recovery steam generation (HRSG) system 138.
- the steam turbine engine 136 may drive a second load 140.
- the second load 140 may also be an electrical generator for generating electrical power.
- both the first and second loads 134, 140 may be other types of loads capable of being driven by the gas turbine engine 1 18 and steam turbine engine 136.
- the gas turbine engine 118 and steam turbine engine 136 may drive separate loads 134 and 140, as shown in the illustrated embodiment, the gas turbine engine 1 18 and steam turbine engine 136 may also be utilized in tandem to drive a single load via a single shaft.
- the specific configuration of the steam turbine engine 136, as well as the gas turbine engine 118 may be implementation-specific and may include any combination of sections.
- the IGCC system 100 may also include the HRSG 138.
- High pressure steam may be transported into the HSRG 138 from the syngas cooler 107.
- heated exhaust gas from the gas turbine engine 1 18 may be transported into the HRSG 138 and used to heat water and produce steam used to power the steam turbine engine 136.
- Exhaust from, for example, a low-pressure section of the steam turbine engine 136 may be directed into a condenser 142.
- the condenser 142 may utilize a cooling tower 128 to exchange heated water for chilled water.
- the cooling tower 128 acts to provide cool water to the condenser 142 to aid in condensing the steam transmitted to the condenser 142 from the steam turbine engine 136.
- Condensate from the condenser 142 may, in turn, be directed into the HRSG 138.
- exhaust from the gas turbine engine 1 18 may also be directed into the HRSG 138 to heat the water from the condenser 142 and produce steam.
- hot exhaust may flow from the gas turbine engine 1 18 and pass to the HRSG 138, along with the steam generated by the syngas cooler 107, where it may be used to generate high-pressure, high-temperature steam.
- the steam produced by the HRSG 138 may then be passed through the steam turbine engine 136 for power generation.
- the produced steam may also be supplied to any other processes where steam may be used, such as to the gasifier 106.
- the gas turbine engine 118 generation cycle is often referred to as the "topping cycle,” whereas the steam turbine engine 136 generation cycle is often referred to as the "bottoming cycle.”
- the IGCC system 100 may include one or more solid feed pumps 10.
- FIG. 2 is a cross-sectional side view of an embodiment of the solid feed pump 10, further illustrating operational features of the solid feed pump 10.
- the solid feed pump 10 includes a housing 214, inlet 200, outlet 202, and rotor 204.
- the rotor 204 may include two substantially opposed and parallel rotary discs 206 and 208, which include discrete cavities defined by protrusions to drive solids there between.
- the rotary discs 206 and 208 may be movable relative to the housing 214 in a rotational direction 216 from the inlet 200 towards the outlet 202.
- the inlet 200 and the outlet 202 may be coupled to a curved passage 210 (e.g., circular or annular passage).
- a curved passage 210 may be disposed between the two rotary discs 206 and 208 and within the housing 214.
- a solid feed guide 212 may be disposed adjacent the outlet 202. In some embodiments, the solid feed guide 212 may be disposed adjacent the inlet 200 or at both the inlet 200 and the outlet 202. The solid feed guide 212 may extend across the curved passage between rotary discs 206 and 208.
- the solid feed guide 212 may include an upper portion 218 and a lower portion 220.
- the lower portion 220 of the solid feed guide 212 may include a guide wall 222 and a surface 224 that interfaces with the rotor 204.
- the rotor interfacing surface 224 of the solid feed guide 212 may be tightly contoured to the shape of an outer surface 226 of the rotor 204. Together the guide wall 222 and the rotor interfacing surface 224 may form a tip 228 at the lower portion 220 of the solid feed guide 212. The rotor interfacing surface 224 near the tip 228 may contact the rotor surface 204 while the rest of the rotor interfacing surface 224 may include a slight gap between the rotor interfacing surface 224 and the rotor surface 204 that gradually increases from the tip 228 towards the opposite end of the rotor interfacing surface 224.
- the outlet 202 may provide a fixed support to the upper portion 218 of the solid feed guide 212.
- the discussed embodiments include one or more discrete contacts between the surfaces 224 and 226, thereby reducing friction, heat generation, and stresses.
- the solid feed pump 10 may impart a tangential force or thrust to the particulate matter in the rotational direction 216 of the rotor 204.
- the direction of flow 234 of the particulate matter is from the inlet 200 to the outlet 202.
- the particulate matter encounters the guide wall 222 of the solid feed guide 212 disposed adjacent the outlet 202 extending across the curved passage 210.
- the particulate matter is diverted by the solid feed guide 212 through an opening 236 of the outlet 202 into an exit pipe 238 connected to a high pressure vessel or into a conveyance pipe line.
- the guide wall 222 may substantially block the curved passage 210. In some embodiments, the guide wall 222 may only partially block the curved passage 210.
- the guide wall 222 extends radially outward from the rotor 204.
- the guide wall 222 may be angled in a radial direction relative to the rotor 204.
- the radial angle i.e., angle between guide wall 222 and the rotor 204 may range between approximately 0 to 90 degrees, 0 to 60 degrees, 30 to 60 degrees, 0 to 45 degrees, 30 to 45 degrees, 0 to 30 degrees, or 0 to 15 degrees, or any angle therebetween.
- the radial angle may be approximately 30, 35, 40, 45, 50, 55, or 60 degrees, or any angle therebetween.
- the impact of the particulate matter on the solid feed guide 212 may create a load pressure on the guide wall 222.
- the load pressure may increase the sliding friction between the rotor interfacing surface 224 and the outer surface 226 of the rotor 204.
- the increase in friction may result in an increase in heat generation at the rotor interfacing surface 224 near the tip 228 of the solid feed guide 212.
- the load pressure created by the particulate matter on the solid feed guide 212 may increase the high stresses experienced by the solid feed guide 212, particularly at the tip 228. Together, the high heat generation and the high stresses may accelerate the rate of tip wear.
- the disclosed embodiments include one or more discrete contacts at the surfaces 224 and 226 to reduce friction, heat generation, and stresses.
- FIGS. 3-10 illustrate embodiments of the solid feed guide 212 with unique contacts that may reduce the heat generation and stresses experienced by the solid feed guide 212.
- the contacts discussed below are disposed on the surface 224 of the solid feed guide 212.
- FIG. 3 illustrates a cross-sectional side view of an embodiment of the solid feed guide 212.
- the solid feed guide 212 may include upper portion 218 and lower portion 220.
- the lower portion 220 of the solid feed guide 212 may include the guide wall 222, rotor interfacing surface 224, and tip 228.
- the lower portion 220 may include multiple discrete contacts 250 distributed along the rotor interfacing surface 224.
- Each of the multiple discrete contacts 250 may present a curved or arcuate surface when interfacing with the outer surface 226 of the rotor 204.
- the extent to which the multiple discrete contacts 250 extend out from the rotor interfacing surface 224 may vary.
- the size and shape of the multiple discrete contacts 250 also may vary.
- the contacts 250 may be spherical, cylindrical, or any suitable curved shape.
- the multiple discrete contacts 250 may be arranged in a partem or randomly distributed on the rotor interfacing surface 224.
- the illustrated multiple discrete contacts 250 are movable.
- the multiple discrete contacts 250 may roll in the rotational direction 216 of the rotor 204.
- the multiple discrete contacts 250 may be made of a low-friction material and have a rolling friction coefficient less than the sliding friction coefficient experienced by the rotor interfacing surface 224 in the absence of the multiple discrete contacts 250.
- the low-friction material may include high alloy steel, stainless steel, chrome steel, ceramic, plastic, or a combination thereof.
- the multiple discrete contacts 250 may generate less heat and may reduce the total heat generated between the solid feed guide 212 and the rotor 204.
- the multiple discrete contacts 250 may provide extra support to the lower portion 220 of the solid feed guide 212, particularly the rotor interfacing surface 224. As a result of this additional support, the high stresses experienced by the lower portion 220 of the solid feed guide 212 may be reduced, particularly the stresses near the tip 228.
- Other embodiments may include both movable and static discrete contacts 250.
- the multiple discrete contacts 250 may be stationary.
- FIG. 4 illustrates a cross-sectional side view of another embodiment of the solid feed guide 212. Similar to FIG. 3, the solid feed guide 212 includes the upper portion 218 and the lower portion 220 that may include guide wall 222, the rotor interfacing surface 224, and the tip 228. The rotor interfacing surface 224 also may include multiple discrete contacts 250.
- the multiple discrete contacts 250 illustrated are static discrete contacts 260. As illustrated, the static discrete contacts 260 are integral to the solid feed guide 212 and may be made of a low-friction material. For example, the low-friction material may include high alloy steel, stainless steel, chrome steel, ceramic, plastic, or a combination thereof.
- the static discrete contacts 260 may be affixed to the rotor interfacing surface 224. If the static discrete contacts 260 are affixed to the solid feed guide 212, then the static discrete contacts 260 may be made of the same constituent material as the solid feed guide 212. In other embodiments, the affixed static discrete contacts 260 may be made of a low-friction material different from the constituent material of the solid feed guide 212. Each of the static discrete contacts 260 may present a curved or arcuate surface when interfacing with the outer surface 226 of the rotor 204. The extent to which the static discrete contacts 260 extend out from the rotor interfacing surface 224 may vary. The size and shape of the static discrete contacts 260 may also vary.
- the contacts 260 may be semi-spherical, convex, partial cylindrical, disc-shaped, or any other curved protruding shape.
- the static discrete contacts 260 may be arranged in a pattern or randomly distributed on the rotor interfacing surface 224. Also, similar to the discrete contacts 250 embodied in FIG. 3, the static discrete contacts 260 may similarly reduce the high stresses experienced by the lower portion 220 of the solid feed guide 212, particularly the tip 228.
- FIG. 5 illustrates a cross-sectional side view of an embodiment of a bearing 270, as shown within line 5-5 of FIG. 3, of the solid feed guide 212.
- the illustrated embodiment shows a portion of the rotor interfacing surface 224 of the solid feed guide 212 and the bearing 270 disposed in a recess 272 of the rotor interfacing surface 224.
- the recess 272 may be concave in order to allow the bearing 270 to rotate within the recess 272 when the bearing 270 rotates in a direction opposite the rotational direction 216 of the rotor 204.
- the dimensions of the recess 272 may vary with the size of the bearing 270.
- the bearing 270 may be spring loaded into the recess 272 or captured between the surfaces 224 and 226.
- the bearing 270 may be made of a low-friction material with a rolling friction coefficient less than the sliding friction coefficient of the rotor interfacing surface 224 in the absence of the bearing 270.
- the low-friction material may include high alloy steel, stainless steel, chrome steel, ceramic, plastic, or a combination thereof.
- FIG. 6 is a partial face view of an embodiment of a solid feed guide 212, taken along line 6-6 of FIG. 3, illustrating cylindrical shapes of the bearings 270.
- the illustrated embodiment shows multiple cylindrical bearings 280 disposed along the rotor interfacing surface 224 of the solid feed guide 212.
- the rotor interfacing surface 224 may include a top portion 282 and a lower portion 284.
- the lower portion 284 is nearest the tip 228.
- the cylindrical bearings 280 may be spring loaded into the concave recess 272 or captured between the surfaces 224 and 226.
- the cylindrical bearings 280 may be disposed along the entire width 286 of the rotor interfacing surface 224, or less than the entire width 286.
- each cylindrical bearing 280 may be uniform or non-uniform. Likewise, the length 288 and diameter 290 may be the same or different from one bearing 280 to another. In some embodiments, the multiple cylindrical bearings 280 may occupy the same longitudinal axis. In other words, each illustrated bearing 280 may be segmented into multiple cylindrical bearings across the width 286. Furthermore, spacing 292 between cylindrical bearings 280 may be constant or vary.
- the bearings 270 may include ball bearings 300.
- FIG. 7 illustrates a partial face view of an embodiment of solid feed guide 212, along the rotor interfacing surface 224, as indicated by line 6-6 of FIG. 3.
- the embodiment illustrated shows multiple ball bearings 280 disposed along the rotor interfacing surface 224 of the solid feed guide 212.
- the rotor interfacing surface 224 may include the top portion 282 and the lower portion 284 with the lower portion 284 nearest the tip 228.
- each of the ball bearings 300 bearings may be spring loaded into a concave recess or captured between surfaces 224 and 226.
- the ball bearings 300 may be disposed in horizontal alignment along the width 286 of the rotor interfacing surface 224 and vertical alignment from the top portion 282 to the lower portion 284 as illustrated. Alternatively, ball bearings 300 may be staggered or randomly distributed along the rotor interfacing surface 224.
- the diameter 302 of the ball bearings 300 may be uniform or non-uniform from one ball bearing 300 to another.
- the horizontal spacing 304 and vertical spacing 306 may also be uniform or non-uniform from one ball bearing 300 to another.
- the multiple discrete contacts 250 may include wheels or rollers having a rotational axis or axle.
- FIG. 8 illustrates an embodiment of the solid feed guide 212 with rollers 316.
- the solid feed guide 212 may include a groove 318 running from the top portion 282 of the rotor interfacing surface 224 towards the lower portion 284.
- the groove 318 may terminate in the lower portion 284 prior to the tip 228.
- the solid feed guide 212 may include multiple rollers 316 disposed in alignment within the groove 318.
- Each of the rollers 316 may rotate along an axis 320 (e.g., an axle) in a direction opposite the rotational direction 216 of the rotor 204.
- each axle 320 may extend through a roller 316 across the groove 318 from one side to another.
- the rollers 316 provide a curved contact surface in the shape of a cylindrical surface.
- the diameter of the rollers 316 may vary between embodiments.
- the spacing between the rollers 316 within the groove 318 may also vary.
- the number of rollers in the groove 318 may vary.
- the rotor interfacing surface 224 may include multiple grooves 318 for multiple series of rollers 316.
- the movable discrete contacts 250 may not be located directly on the rotor interfacing surface 224 of the solid feed guide 212.
- FIG. 9 illustrates a side view of the solid feed guide 212 with the movable discrete contact 250 located at an offset away from the surface 224, e.g., behind the solid feed guide 212.
- the solid feed guide 212 may include the upper portion 218 and the lower portion 220 that may include the guide wall 222, the rotor interfacing surface 224, and the tip 228.
- the solid feed guide 212 includes an extension 330 that extends from a backside 332 of the solid feed guide 212 to the movable discrete contact 250.
- the movable discrete contact 250 may include a curved contact surface (e.g., a spherical or cylindrical shape) to interface with the outer surface 226 of the rotor 204.
- the movable discrete contact 250 may include the bearing 260 or roller 316.
- the bearing 260 may include the ball bearing 300 or the cylindrical bearing 280.
- the roller 316 may be coupled to the extension 330 via an axle.
- the extension 330 may originate from the lower portion 220 of the backside 332 of the solid feed guide 212. In other embodiments, the extension 330 may originate from the upper portion 218 of the solid feed guide 212.
- the extension 330 may be angled in a radial direction relative to the backside 332 of the solid feed guide 212.
- the radial angle i.e., angle between the extension 330 and the backside 332 of solid feed guide 212
- the radial angle may range between about 0 to 90 degrees, 0 to 60 degrees, 30 to 60 degrees, 0 to 45 degrees, 30 to 45 degrees, 0 to 30 degrees, or 0 to 15 degrees.
- the radial angle may be about 30, 35, 40, 45, 50, 55, 60 or 65 degrees, or any angle therebetween.
- the movable discrete contact 250 located on the backside 332 of the solid feed guide 212 may provide additional support to the solid feed guide 212 to reduce stresses experienced by the lower portion 220 of the solid feed guide 212, particularly the tip 228. Additionally, the backside 332 location of the movable discrete contact 250 may allow a thickness 334 of the solid feed guide 212 to be reduced from a thickness 336 of the standard solid feed guide 212.
- the thickness 334 of the backside supported solid feed guide 212 may be reduced by at least approximately 10, 20, 30, 40, or 50 percent compared to the thickness 336 of the standard solid feed guide 212.
- the thickness 336 of the standard solid feed guide 212 may be a factor of approximately 1.1 to 3 times greater than the thickness 334 of the backside supported solid feed guide 212.
- the factor may range between approximately 1 to 3, 1 to 2.5, 1 to 2, or 1 to 1.5.
- the reduced thickness of the solid feed guide 212 may reduce the area requiring a tight tolerance between the rotor interfacing surface 224 and the outer surface 226 of the rotor 204.
- the movable discrete contacts 250 may be adjustable at the interface between surfaces 224 and 226.
- FIG. 10 illustrates a cross- sectional side view of the solid feed guide 212 with adjustable movable discrete contacts 250.
- the solid feed guide 212 may include upper portion 218 and lower portion 220 that may include the guide wall 222, the rotor interfacing surface 224, and tip 228.
- the illustrated solid feed guide 212 includes rods 344 extending vertically from the upper portion 218 to the lower portion 220 of the solid feed guide 212.
- the rods 344 include at one end threaded portions 346 (e.g., male threads) and at the other end movable discrete contacts 250.
- An adjustment member 348 may engage the threaded portion 346 of the rod 344.
- the adjustment member 348 may include a nut.
- the adjustment member 348 enables adjustment of the distance between the movable discrete contacts 250 and the rotor interfacing surface 224, as well as adjustment of the clearance between the contacts 250 and the surface 226.
- the number of adjustable movable discrete contacts 250 may vary.
- the adjustable movable discrete contacts 250 may include a curved contact surface (e.g., spherical, cylindrical, semi-spherical, partial cylindrical, etc.) to interface with the outer surface 226 of the rotor 204.
- the adjustable movable discrete contacts 250 may include the bearing 260 or the roller 316.
- the bearing 260 may include the ball bearing 300 or the cylindrical bearing 280.
- the rod 344 may include a spring 350 located towards the end with the discrete contacts 250 to spring load the bearings 260.
- the roller 316 may be coupled to the rod 344 via an axle.
- a tight tolerance is provided between the solid feed guide 212 and the rotor 204 for efficient operation of the solid feed pump 10.
- the adjustable movable discrete contacts 250 may help ensure this tight tolerance.
- the adjustable movable discrete contacts 250 may allow the proper clearance to be obtained between the solid feed guide 212 and the rotor 204 during initial installation. Also, as the movable discrete contacts 250 wear over time, the clearance between the solid feed guide and the rotor may be adjusted to ensure a tight tolerance.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2011243112A AU2011243112A1 (en) | 2010-04-19 | 2011-04-06 | Solid feed guide apparatus for a solid feed pump |
KR1020127027242A KR20130071422A (en) | 2010-04-19 | 2011-04-06 | Solid feed guide apparatus for a solid feed pump |
CN2011800200248A CN102869888A (en) | 2010-04-19 | 2011-04-06 | Solid feed guide apparatus for a solid feed pump |
CA2796245A CA2796245A1 (en) | 2010-04-19 | 2011-04-06 | Solid feed guide apparatus for a solid feed pump |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/763,101 US20110255961A1 (en) | 2010-04-19 | 2010-04-19 | Solid feed guide apparatus for a solid feed pump |
US12/763,101 | 2010-04-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2011133321A2 true WO2011133321A2 (en) | 2011-10-27 |
WO2011133321A3 WO2011133321A3 (en) | 2012-10-26 |
Family
ID=44625848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2011/031315 WO2011133321A2 (en) | 2010-04-19 | 2011-04-06 | Solid feed guide apparatus for a solid feed pump |
Country Status (6)
Country | Link |
---|---|
US (1) | US20110255961A1 (en) |
KR (1) | KR20130071422A (en) |
CN (1) | CN102869888A (en) |
AU (1) | AU2011243112A1 (en) |
CA (1) | CA2796245A1 (en) |
WO (1) | WO2011133321A2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9970424B2 (en) | 2012-03-13 | 2018-05-15 | General Electric Company | System and method having control for solids pump |
US9022723B2 (en) | 2012-03-27 | 2015-05-05 | General Electric Company | System for drawing solid feed into and/or out of a solid feed pump |
WO2014020539A1 (en) * | 2012-08-02 | 2014-02-06 | White Mist Electronics Inc | Combustion free and tobacco free smoking device |
US9604182B2 (en) * | 2013-12-13 | 2017-03-28 | General Electric Company | System for transporting solids with improved solids packing |
US9206806B1 (en) * | 2014-08-05 | 2015-12-08 | General Electric Company | Solids pump having feed guides |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1223988B (en) * | 1953-05-16 | 1966-09-01 | Hedwig Alice Wallimann Geb Hun | Rotary piston machine |
US3710925A (en) * | 1971-05-06 | 1973-01-16 | Us Interior | Centrifugal stower |
US4213709A (en) * | 1978-12-01 | 1980-07-22 | Usm Corporation | Rotary processor |
NL7901452A (en) * | 1979-02-23 | 1980-08-26 | Shell Int Research | CENTRIFUGAL PUMP FOR CARBON POWDER, METHOD AND APPARATUS FOR GASIFICATION OF CARBON POWDER. |
US4382459A (en) * | 1981-08-10 | 1983-05-10 | Joseph Bartok | Wood splitting maul |
US4988239A (en) * | 1990-03-05 | 1991-01-29 | Stamet, Inc. | Multiple-choke apparatus for transporting and metering particulate material |
IT1252103B (en) * | 1991-11-27 | 1995-06-02 | Gpw Macchine S A S Di Giuseppe | PUMP FOR SPECIAL SOLID MATERIALS |
US5344575A (en) * | 1993-01-29 | 1994-09-06 | Centre De Recherche Industrielle Du Quebec | Apparatus and method for extracting liquid from a humid mass |
CN2161588Y (en) * | 1993-03-08 | 1994-04-13 | 殷筑生 | Self-pressure type single or double side plow type tripper for belt conveyer |
US5355993A (en) * | 1993-06-11 | 1994-10-18 | Hay Andrew G | Grooved disk drive apparatus and method for transporting and metering particulate material |
US5381886A (en) * | 1993-06-11 | 1995-01-17 | Hay; Andrew G. | Apparatus and method with improved drive force capability for transporting and metering particulate material |
US5931280A (en) * | 1997-07-18 | 1999-08-03 | Serpentix Conveyor Corp. | Conveyor belt cleaning device |
US6213289B1 (en) * | 1997-11-24 | 2001-04-10 | Stamet, Incorporation | Multiple channel system, apparatus and method for transporting particulate material |
CN2365410Y (en) * | 1999-03-26 | 2000-02-23 | 山东活塞厂 | Low-friction type piston |
CN1367319A (en) * | 2002-01-08 | 2002-09-04 | 西南石油学院 | Rolling type blade hydraulic pump |
CN2663692Y (en) * | 2003-12-27 | 2004-12-15 | 浙江工业大学 | Rolling sliding-vane pump |
US20050254968A1 (en) * | 2004-05-14 | 2005-11-17 | Patterson Albert W | Impeller pump with reciprocating vane and non-circular rotor |
KR101057639B1 (en) * | 2005-10-12 | 2011-08-18 | 케이-트론 테크놀로지즈 인코포레이티드 | Bulk material pump feeder with flexible disk to reduce disk clogging |
WO2009009189A2 (en) * | 2007-04-20 | 2009-01-15 | General Electric Company | Transporting particulate material |
CN201052786Y (en) * | 2007-05-27 | 2008-04-30 | 荆州恒隆汽车零部件制造有限公司 | Toothed bar supporting base capable of reducing friction resistance |
US20080309105A1 (en) * | 2007-06-12 | 2008-12-18 | Hayner Eric | Material pushing device and method for use |
US7882943B1 (en) * | 2009-06-25 | 2011-02-08 | Schoonover Albert G | Plow for a conveyor belt |
-
2010
- 2010-04-19 US US12/763,101 patent/US20110255961A1/en not_active Abandoned
-
2011
- 2011-04-06 KR KR1020127027242A patent/KR20130071422A/en not_active Application Discontinuation
- 2011-04-06 AU AU2011243112A patent/AU2011243112A1/en not_active Abandoned
- 2011-04-06 WO PCT/US2011/031315 patent/WO2011133321A2/en active Application Filing
- 2011-04-06 CN CN2011800200248A patent/CN102869888A/en active Pending
- 2011-04-06 CA CA2796245A patent/CA2796245A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
None |
Also Published As
Publication number | Publication date |
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KR20130071422A (en) | 2013-06-28 |
CN102869888A (en) | 2013-01-09 |
WO2011133321A3 (en) | 2012-10-26 |
AU2011243112A1 (en) | 2012-11-08 |
US20110255961A1 (en) | 2011-10-20 |
CA2796245A1 (en) | 2011-10-27 |
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