EP1812765A1 - Dispositif de regulation des flux d'air de refroidissement d'un dispositif a grille de refroidissement de matiere en vrac - Google Patents

Dispositif de regulation des flux d'air de refroidissement d'un dispositif a grille de refroidissement de matiere en vrac

Info

Publication number
EP1812765A1
EP1812765A1 EP05799681A EP05799681A EP1812765A1 EP 1812765 A1 EP1812765 A1 EP 1812765A1 EP 05799681 A EP05799681 A EP 05799681A EP 05799681 A EP05799681 A EP 05799681A EP 1812765 A1 EP1812765 A1 EP 1812765A1
Authority
EP
European Patent Office
Prior art keywords
cooling air
cooling
control device
grate
section
Prior art date
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.)
Withdrawn
Application number
EP05799681A
Other languages
German (de)
English (en)
Inventor
Karl Schinke
Christian Splinter
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.)
KHD Humboldt Wedag AG
Original Assignee
KHD Humboldt Wedag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KHD Humboldt Wedag AG filed Critical KHD Humboldt Wedag AG
Publication of EP1812765A1 publication Critical patent/EP1812765A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/02—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm
    • F16K7/04—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force
    • F16K7/07—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force by means of fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • F27D15/0206—Cooling with means to convey the charge
    • F27D15/0213—Cooling with means to convey the charge comprising a cooling grate
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y10T137/0324—With control of flow by a condition or characteristic of a fluid
    • Y10T137/0368—By speed of fluid

Definitions

  • the invention relates to a device for controlling the Strömungs ⁇ cross-section in thede povertyzuströmungen a Schüttgutrostkühlers for cooling a hot bulk material such.
  • EP-B-1 021 692 discloses a type of grate cooler in which the cooling grate flowed through by cooling air is not moved, but is stationary, wherein a plurality of rows of adjacent reciprocating beam-shaped thrust elements are arranged above the fixed grate surface are, which are moved between a Vorhubposition indiumguttransportides and a rinse-position, so that the Gutmaterial also moves successively from the radiator start to the radiator end and is thereby cooled by the reciprocation of these thrust elements in the cooled Gutbett.
  • the known mechanical cooling-air flow rate regulator operates with a weight-loaded pendulum flap with horizontal pivot axis, the pendulum flap depending on the prevailing pressure conditions and Strö ⁇ mungsmilln the respectivede povertyzströmömung more or less strongly self-throttling.
  • WO 02/06748 also discloses a cooling air control device in the case of a bulk material grate cooler in which a round fixed segment disk provided with through openings is arranged in the cooling air supply line and above which a wing disk rotatably mounted on an axle is arranged, which latter rotates as a function of the flow velocity of the cooling air and thereby automatically changes the clear flow cross-section of the segment disc in such a way that, when the flow velocity is increased, the vane disc is rotated counter to a spring force and the flow cross-section is reduced, and vice versa.
  • a cooling air control device in the case of a bulk material grate cooler in which a round fixed segment disk provided with through openings is arranged in the cooling air supply line and above which a wing disk rotatably mounted on an axle is arranged, which latter rotates as a function of the flow velocity of the cooling air and thereby automatically changes the clear flow cross-section of the segment disc in such a way that, when the flow velocity is increased, the vane disc is
  • the risk is not excluded that the function of the control device is disturbed by the jerky pendulum motion of the reciprocatingmérostzo ⁇ NEN.
  • pneumatically controlled Schlauchquetschventile known as shut-off in lines to promote wear-causing media such as sludge and other solids-containing suspensions.
  • the problem of promoting solids-containing suspensions but does not occur in a bulk material cooler.
  • the invention has the object of providing ade Kunststoffregelungsvor ⁇ direction according to the preamble of claim 1 in such a way that it works automatically and that they are simple and easy for both non-moving and especially for movingde ⁇ rust areas or moving cooling grate systems of a grate cooler for cooling of hot bulk such.
  • B. cement clinker can be used.
  • the control device should possibly also be able to work under process control.
  • the controller housing which is integrated into the respective cooling air inflow below the cooling grate, consists of a solid material, for B. steel.
  • a z. B. cylindrical hose sleeve made of elastic material clamped as an actuator.
  • the pressure difference inside and outside the z. B. rubber sleeve and the Verformungswi ⁇ resistance of the cuff are now set so that the hose cuff can in particular automatically form from its maximum flow cross section to a minimum flow cross section, specifically as a function of the cooling air flow velocity or the static pressure of the cooling air flow or depending on the control pressure of the gaseous air acting on the hose manhole print media.
  • the annular gap between the outside of the hose cuff and the inside of the fixed jacket is acted upon by at least one connection opening with a gaseous Druckme ⁇ medium. If a cooling air stream flows through the elastic hose cuff of the control device, the static pressure in the cross section of the hose cuff decreases as a function of the increasing flow velocity and the gaseous pressure medium in the intermediate space between the hose cuff and the fixed jacket relaxes. In this case, the hose cuff is squeezed together with originally preferably round cross section and deformed approximately flatly oval until the force equilibrium between the pressure difference from inside to outside of the hose cuff and the deformation stresses of the hose is reached.
  • the resulting change in the free flow cross-section of the hose cuff causes the automatic control of the cooling air volume flow in such a way that an increase in the cooling air flow velocity in the region of the elastic hose cuff causes a reduction of the cooling air flow rate, and vice versa.
  • the cooling air flows through the annular space between the outside of the hose cuff and the inside of the fixed jacket of the regulating device. men. Then, the interior of the hose cuff with the gaseous pressure medium can be acted upon.
  • the control characteristic in the cooling air control device, can be changed by changing the pressure of the gaseous pressure medium in the pressurizable pressure chamber, and this even during operation of the Schütt ⁇ gutrostkühlers.
  • the control characteristic indicates the increase in the cooling air requirement with increasing cooling-product bed height or increasing cooling-good-bed throughflow resistance for the cooling air. It can be used to control an essentially constant volume flow of the cooling air independently of changes in the cooling air flow resistance. However, the cooling air control can also be controlled by controlling the pressure level of the gaseous pressure medium for actuating the deformation of the hose cuff and thus the cooling air volume flow as a function of measured operating parameters of the bulk material cooler.
  • the entire grate cooler has a plurality of cooling air chambers whose size generally increases towards the end of the cooler.
  • Each cooling air chamber can have its own control characteristic, which can be changed in each case in the cooler mode.
  • the cooling air control device is simple in construction, not susceptible to contamination, largely maintenance-free and easy in the adjustment of the control characteristic even during the cooler operation.
  • gravity and moments of inertia which could impair the function of the automatic control, are irrelevant.
  • the inventive Cooling air control device is therefore particularly suitable for use in bulk coolers with moving cooling grate areas or moving cooling grate systems, ie for the above-mentioned grate cooler as well as for cooling grate systems that operate on the so-called walking floor conveying principle, which will be explained in more detail below becomes.
  • FIG. 1 shows the vertical section through a first embodiment of the cooling air control device according to the invention with an elastic hose cuff
  • FIG. 2 shows the control device of FIG. 1 in throttle position for the cooling air flow
  • FIG. 3 shows the vertical section through a second embodiment of the cooling air control device according to the invention with elastic hose cuff
  • Fig. 4 the control device of FIG. 3 in throttle position for the cooling air volume flow
  • FIG. 5 shows a perspective view of a cooling grate module of a
  • the of the cooling air 10 of a grate cooler for cooling hot bulk such. 2, wherein a plurality of such Rege ⁇ treatment devices is attached to the underside of the cooling grille shown in Fig. 5 in detail, has an outer jacket 11 made of solid material such , For example, steel, in which at both ends coaxially a hose sleeve 12 made of elastic material such. B. rubber is clamped as an actuator.
  • the cross-section of jacket 11 and hose cuff 12 is round; but it could also have an oval or polygonal configuration.
  • the hose sleeve 12 is pressure-tightly connected at its two ends via a respective clamping ring 13 with the jacket 1 1.
  • the annular intermediate space between the outside of the hose cuff 12 and the inside of the fixed jacket 11 is acted upon by a gaseous pressure medium via at least one connection opening 14 which leads to a pneumatic system (not shown) Pressure level is adjustable.
  • the static pressure in the flow cross-section of the hose cuff 12 decreases as a function of the rising flow velocity.
  • the gaseous pressure medium present in the space between jacket 11 and sleeve 12 expands.
  • the hose cuff 12 squeezes approximately ovally together until the equilibrium of forces between the pressure difference from inside to outside of the hose cuff 12 and as a result of the deformation stresses of the hose cuff is achieved.
  • a reduction in the free flow cross section of the hose manhole cuff 12 and thus achieved the desired automatic reduction of the cooling air flow rate at the beginning of increasing the Strömungs ⁇ speed, and vice versa.
  • the resistance to deformation of the hose cuff 12 and thus also the response of the cooling air control device according to the invention depend on the configuration of the hose sleeve 12 apart from the hose material, in particular its wall thickness, existing stiffening ribs, hose inserts etc ..
  • the respective adjacent cooling air control devices according to the invention are temporarily completely closed to undershoot a breakthrough of such blasts of compressed air in the air chambers to avoid the cooling grate.
  • the free flow area opens to its maximum value when the cooling Air flow begins to collapse due to very high bulk loadings of the respective cooling grate zone to be cooled.
  • the annular space between the outer shell 11 and the inner elastic tube sleeve 12 is flowed through by the cooling air 10 in the inventive cooling air control device of FIG. 3 or FIG upper and lower clamping ring 13 and in the upper and lower end flange 16 can flow through this annular space. If there is a flow through this control device with cooling air 10, the static pressure in the annular cross section of the space between the hose sleeve 12 and the jacket tube 11 decreases depending on the Strömungsge ⁇ speed of the cooling air.
  • the elastic tube cuff 12 inflates until the equilibrium of forces between the pressure difference from within has set outside of the tube sleeve 12 and its deformation stresses.
  • the resulting change in cross section in turn automatically effects the regulation of the cooling air volume flow in the desired direction.
  • FIG. 5 it can be seen that a plurality of the cooling air control devices of FIG. 1 and / or alternatively FIG. 3 with their upper outlet opening for the cooling air flow 10 to the cooling air inlet openings at the bottom of a particular moving cooling grate to the cooling air supply can be flanged.
  • each module is composed of three elongate, approximately trough-shaped bottom elements 18, 19, 20 arranged in the longitudinal direction of the cooling device, which independently of one another between a forward stroke position 21 in the cooling material transport direction and ei ⁇ ner return position 22 are controlled to be movable, so that the stored on the floor elements there not shown hot chilled goods gradually z. B. is promoted by the cooler after the walking floor conveyor principle.
  • the drive of the individual floor elements 18, 19, 20 of the cooling grate modules takes place from below the cooling grate on push frames, which are supported on rollers and act on Ar ⁇ beitszylinder, namely controlled so that the Bodenele ⁇ elements together forward, but not together , but are moved back in time separately.
  • the bottom elements 18, 19, 20 of all modules are formed as hollow bodies, namely they have, viewed in cross-section, a top side 23 which supports the cooling element and essentially transmits the cooling air 10 from bottom to top, and a closed end which is spaced therefromrisonrost sacrifice preventing underside 24 on.
  • the undersides 24 of all floor elements have a plurality of cooling air inlet openings distributed over the length, on which the cooling air control devices illustrated in FIG. 1 and FIG. 3 are flanged, of which the three in FIG Regulator housing 11 of the three independently movable cooling grid floor elements 18, 19, 20 can be seen.
  • the cooling grid upper sides 23 carrying the hot items to be cooled can in principle be provided with any for the cooling air 10 permeable passages.
  • thederost- tops 23 each consist of spaced by a mirror image gegen ⁇ overlying, but offset from each other saddle roof shaped V-profiles whose V-legs interlock with space, which latter a labyrinth for the refrigerated goods and for Cooling air 10 forms. This ensures that the bulk material cooler is protected against rust rust.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Furnace Details (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

L'invention vise à créer, pour un dispositif de refroidissement à grille destiné à refroidir de la matière en vrac chaude comme, par ex., du clinker, un dispositif de régulation d'air de refroidissement, notamment à fonctionnement automatique, de conception simple et d'utilisation aisée, à la fois pour des zones fixes de grille de refroidissement et pour des zones mobiles de grille de refroidissement ou pour des systèmes mobiles de grille de refroidissement. A cet effet, dans le carter du régulateur placé sous la grille de refroidissement dont il accompagne le mouvement, ce carter étant pourvu d'une enveloppe (11) en matériau solide, un manchon tubulaire (12) coaxial, par ex. cylindrique, en matière élastique est tendu en tant qu'organe de réglage. La différence de pression à l'intérieur et à l'extérieur de ce manchon tubulaire (12) et sa résistance à la déformation sont réglées de telle sorte que ledit manchon tubulaire (12) se déforme automatiquement entre sa section transversale maximale et minimale et régule ainsi le débit volumétrique du flux d'air de refroidissement (10) pénétrant par le bas dans la grille de refroidissement.
EP05799681A 2004-10-23 2005-10-14 Dispositif de regulation des flux d'air de refroidissement d'un dispositif a grille de refroidissement de matiere en vrac Withdrawn EP1812765A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410051698 DE102004051698A1 (de) 2004-10-23 2004-10-23 Regelungsvorrichtung für die Kühlluftzuströmungen eines Schüttgutrostkühlers
PCT/EP2005/011055 WO2006045446A1 (fr) 2004-10-23 2005-10-14 Dispositif de regulation des flux d'air de refroidissement d'un dispositif a grille de refroidissement de matiere en vrac

Publications (1)

Publication Number Publication Date
EP1812765A1 true EP1812765A1 (fr) 2007-08-01

Family

ID=35530763

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05799681A Withdrawn EP1812765A1 (fr) 2004-10-23 2005-10-14 Dispositif de regulation des flux d'air de refroidissement d'un dispositif a grille de refroidissement de matiere en vrac

Country Status (7)

Country Link
US (1) US7862333B2 (fr)
EP (1) EP1812765A1 (fr)
CN (1) CN100549608C (fr)
CA (1) CA2587633A1 (fr)
DE (1) DE102004051698A1 (fr)
RU (1) RU2007119133A (fr)
WO (1) WO2006045446A1 (fr)

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GB0712527D0 (en) * 2007-06-28 2007-08-08 Carr Roger Discharge valve for powder-type fire extinguisher
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DE102009055343A1 (de) * 2009-12-28 2011-06-30 AKO Armaturen & Separations GmbH, 65468 Quetschventil
CN103594757B (zh) * 2012-08-16 2016-10-26 比亚迪股份有限公司 电动汽车电池加热装置及其散热器
CN103603955B (zh) * 2013-10-18 2016-01-20 江西稀有金属钨业控股集团有限公司 一种回转炉的动密封连接装置
DE102014010919A1 (de) * 2014-07-28 2016-01-28 Schuko H. Schulte-Südhoff GmbH Absaugstutzen und Absaugvorrichtung
DE102017203466A1 (de) * 2017-03-03 2018-09-06 Robert Bosch Gmbh Absperrventil, Kühlkreislauf, Batteriemodul und Verfahren zum Betrieb eines Kühlkreislaufs
DE102018120930A1 (de) * 2017-12-06 2019-06-06 Schaeffler Technologies AG & Co. KG Planetengetriebe mit einem Planetenträger, Planetenrädern, Planetenbolzen und mit einer Schmiervorrichtung
CN108332212A (zh) * 2018-04-20 2018-07-27 南京凯盛国际工程有限公司 一种垃圾焚烧炉排炉拨火装置
EP3667222A1 (fr) * 2018-12-11 2020-06-17 Paul Wurth S.A. Procédé de montage ou de réaménagement d'un refroidisseur de frittage
CN111306319A (zh) * 2020-04-08 2020-06-19 成都市笑脸科技有限公司 一种外膨胀式柔性压力阀
CN112325665A (zh) * 2020-10-20 2021-02-05 安徽世华化工有限公司 一种乙醇蒸馏回收装置
CN113701495B (zh) * 2021-08-26 2024-02-23 江苏润鸿高温窑具有限公司 燃气隔焰辊道窑内腔低膨胀抗强碱性腐蚀材料设计方法

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Also Published As

Publication number Publication date
DE102004051698A1 (de) 2006-04-27
US20080173352A1 (en) 2008-07-24
CN101087986A (zh) 2007-12-12
WO2006045446A1 (fr) 2006-05-04
CN100549608C (zh) 2009-10-14
RU2007119133A (ru) 2008-11-27
CA2587633A1 (fr) 2006-05-04
US7862333B2 (en) 2011-01-04

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