EP0352621A2 - Dispositif de chargement avec trémie de remplissage et glissière de chargement se raccordant à la trémie pour l'alimentation en ordures des installations de combustion - Google Patents

Dispositif de chargement avec trémie de remplissage et glissière de chargement se raccordant à la trémie pour l'alimentation en ordures des installations de combustion Download PDF

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Publication number
EP0352621A2
EP0352621A2 EP89113260A EP89113260A EP0352621A2 EP 0352621 A2 EP0352621 A2 EP 0352621A2 EP 89113260 A EP89113260 A EP 89113260A EP 89113260 A EP89113260 A EP 89113260A EP 0352621 A2 EP0352621 A2 EP 0352621A2
Authority
EP
European Patent Office
Prior art keywords
retaining
feed device
compression body
feed
compression
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.)
Granted
Application number
EP89113260A
Other languages
German (de)
English (en)
Other versions
EP0352621A3 (en
EP0352621B1 (fr
Inventor
Johannes Josef Edmund Martin
Walter Josef Martin
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.)
Martin GmbH fuer Umwelt und Energietechnik
Original Assignee
Martin GmbH fuer Umwelt und Energietechnik
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 Martin GmbH fuer Umwelt und Energietechnik filed Critical Martin GmbH fuer Umwelt und Energietechnik
Publication of EP0352621A2 publication Critical patent/EP0352621A2/fr
Publication of EP0352621A3 publication Critical patent/EP0352621A3/de
Application granted granted Critical
Publication of EP0352621B1 publication Critical patent/EP0352621B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44—Details; Accessories
    • F23G5/442—Waste feed arrangements
    • F23G5/444—Waste feed arrangements for solid waste

Definitions

  • the invention relates to a feed device with a filling funnel and a subsequent feed chute, at the lower end of which feed pistons are provided for conveying waste to an incineration plant.
  • Such a feeding device is known from DE 25 38 380 Al.
  • Waste is an extremely heterogeneous fuel, which is produced in different compositions, so that difficulties can arise when feeding the incineration plants.
  • the difficulties are based on the fact that, depending on its nature, the garbage glides more easily in one case and thus has a tendency to slip into the incinerator from the hopper, is more bulky with a different composition and does not have good sliding behavior.
  • the result of this is, despite the constant operation of the charging pistons, different feed quantities, which, in conjunction with the different calorific values of the waste, lead to a strongly fluctuating heat release and thus to a fluctuating heating output of the combustion system.
  • the object of the invention is to design the feeding device of the type mentioned in such a way that the garbage does not slip through the charging pistons and that the garbage is fed evenly into the incineration plant.
  • the arrangement of at least one retaining and compression body on at least one loading piston prevents the amount of waste input into the filling funnel from slipping over the loading piston in an uncontrolled manner.
  • this retention function it is also achieved during the return stroke of the loading piston that the garbage is compressed somewhat by this retention and compression body, so that the same is compressed in the case of very loose garbage, which increases the density of the fuel and a better metering of the latter Garbage is possible by the next feed of the loading piston.
  • the retention and compression bodies can be provided in the area of the front ends of the feed pistons or directly at the front end of the feed pistons.
  • Several retention and Compression bodies can be arranged, which can either be arranged side by side or offset from one another.
  • the retention and compression body of a loading piston it is also possible for the retention and compression body of a loading piston to be designed as a body which extends over the entire width of the loading piston.
  • the retention and compression bodies of adjacent charging pistons can be offset from one another or aligned with one another.
  • a first advantageous embodiment for achieving the retention and compression effect is that the retention and compression bodies have a steeply sloping flank towards the rear end of the loading piston and a flatter sloping flank towards the front end of the loading piston. This has the effect that the entrainment effect of these bodies on the garbage lying loosely on the feed piston when feeding the feed piston is less than the retention and compression effect when pushing back the feed piston.
  • the retaining and compression bodies move towards the rear end of the feed piston have a flat slope and a steeper slope towards the front end of the feed piston.
  • the retention and compression bodies can be designed as flat, upright arranged bodies with a rectangular, trapezoidal, triangular or arched outline in side view.
  • the retention and compression bodies can also be designed in the manner of a pyramid, a truncated pyramid, a cone, a truncated cone or a spherical cap.
  • a feed device comprises a hopper 1, an adjoining feed chute 2, a feed table 3 and feed pistons 4 which can be moved back and forth on the feed table and which discharge the garbage which has been fed into the hopper and slides down in the feed chute 2 via the Be Push the chic edge 5 onto a grate 6 of an incinerator.
  • each loading piston in the front area of each loading piston.
  • Some of these retaining and compression bodies 7 have a gently sloping flank 8 directed towards the front end of the loading piston 4 and a steeply sloping flank 9 directed towards the rear end of the loading piston 4. This ensures that the piston during the forward stroke promotes the garbage predominantly through its front piston surface 10, i.e. only pushes the garbage lying on the support table 3, while the steep rear flank 9 of the retaining and compression body achieves two effects should.
  • the first effect is that the garbage sliding down in the feed chute 2 does not slide uncontrollably over the loading pistons 4 and the second effect is to be seen in that each retention and compression body pushing downward in the feed chute 2 during the reverse stroke Garbage is compressed, only to be taken along on the next piston stroke, which is directed forward.
  • Some other retention and compression bodies 7 have one directed towards the front end of the loading piston 4 steeply falling edge 12 and a flat falling edge 11 directed towards the rear end of the loading piston 4. This can be of advantage if the feed chute is at a very steep angle to the feed piston, so that the risk of uncontrolled slipping is out of the question, but the garbage is relatively loose and must be subjected to compression.
  • the flank that slopes gently towards the rear creates a compression component that is essentially opposite to the garbage that slides down, as a result of which the garbage is sufficiently pre-compressed.
  • the steeply falling flank increases the possibility of conveying the loading piston, which is practiced only by the front piston surface 10 of the loading piston with a flat front flank.
  • the retention and compression bodies 7 can have a wide variety of configurations.
  • the drawing shows some examples of different design options for the retention and compression bodies, although in practice a single embodiment is preferably chosen for all feed pistons for a feed device.
  • the individual loading pistons are provided with the reference number 4 and an additional letter and the retaining bodies are provided with the reference number 7 and also with an additional letter.
  • nine charging pistons 4a-4i are arranged, a different variant of a retaining or compression body being provided on each charging piston.
  • two retaining and compression bodies 7a designed in the manner of a truncated cone are provided in the vicinity of the front edge of the charging piston 4a, in which, as can be seen from FIG. 3, the forward flank 8 drops more gently than the rearward one Flank 9.
  • the retention and compression bodies 7g On the feed piston 4b, two identical retention and compression bodies 7b are again provided, which are designed as narrow, upright bodies.
  • the outer contour of these retention and compression bodies 7b is essentially trapezoidal in side view, here too the flank 8 directed towards the front is substantially flatter than the flank 9 directed towards the rear end of the loading piston.
  • the retaining and compression bodies 7c on the loading piston 4c are designed in the manner of a pyramid, while the retaining and compression bodies 7d on the loading piston 4d are designed as spherical caps.
  • the retention and compression bodies 7e on the loading piston 4e are designed in the manner of a truncated pyramid, the forward flank 8 of these bodies also being essential here, as in the case of the other retention and compression bodies described above is flatter than the flank 9 directed towards the rear end of the loading piston.
  • Flat, upright retaining and compression bodies 7f with side walls perpendicular to the piston surface are arranged on the loading piston 4f, the side view being triangular in shape with a front gently sloping flank 8 and one to the rear steeply falling flank 9 are designed.
  • the retention and compression bodies 7h on the loading piston 4h are also designed as flat bodies with an arcuate outline.
  • a single retaining and compression body 7i which extends across the entire width of the loading piston and has a triangular cross section with a flat front flank 8 and a steeper rear flank 9, is arranged on the loading piston 4i.
  • Flat, upright retaining and compression bodies 7h with a triangular outline in side view are arranged on the charging piston 4h, in which, in contrast to the other retaining bodies, the rearward flank 11 slopes gently and the forwardward flank 12 drops steeply.
  • Fig. 4 the same retention and compression bodies are provided as in Fig. 3, with one exception, but these retention bodies are offset from one another on one and the same loading piston, so that there are two rows of mutually aligned retention and compression bodies with respect to all loading pistons 3, while in the embodiment according to FIG. 3 all retaining and compression bodies are aligned with one another.
  • the loading piston 4i in Fig. 4 carries only a single retaining and compression body 7k, however In contrast to the embodiment according to FIG. 3, this is arranged with its longitudinal axis in the longitudinal direction of the loading piston. In side view it has a rectangular outline.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
EP89113260A 1988-07-29 1989-07-19 Dispositif de chargement avec trémie de remplissage et glissière de chargement se raccordant à la trémie pour l'alimentation en ordures des installations de combustion Expired - Lifetime EP0352621B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3825930 1988-07-29
DE3825930A DE3825930C1 (fr) 1988-07-29 1988-07-29

Publications (3)

Publication Number Publication Date
EP0352621A2 true EP0352621A2 (fr) 1990-01-31
EP0352621A3 EP0352621A3 (en) 1990-08-16
EP0352621B1 EP0352621B1 (fr) 1992-12-09

Family

ID=6359910

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89113260A Expired - Lifetime EP0352621B1 (fr) 1988-07-29 1989-07-19 Dispositif de chargement avec trémie de remplissage et glissière de chargement se raccordant à la trémie pour l'alimentation en ordures des installations de combustion

Country Status (4)

Country Link
US (1) US5009171A (fr)
EP (1) EP0352621B1 (fr)
JP (1) JP2682704B2 (fr)
DE (1) DE3825930C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0443979A3 (en) * 1990-02-21 1992-03-04 Licencia Holding S.A. Device for tearing-up and stoking straw

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19834294A1 (de) * 1998-07-29 2000-02-10 Martin Umwelt & Energietech Beschickvorrichtung
IL145348A0 (en) * 2001-09-10 2003-10-31 Heavy duty magazine speed loader
US10823404B1 (en) 2016-03-11 2020-11-03 Pyrodyne Thermal, LLC Materials handling system for feed injection to thermal kiln retorts

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1267439A (en) * 1916-06-19 1918-05-28 William C Stripe Stoking mechanism.
US1413428A (en) * 1919-10-28 1922-04-18 Sanford Riley Stoker Co Coal agitator for mechanical stokers
US1400766A (en) * 1920-03-16 1921-12-20 Thomas A Peebles Stoking mechanism
US2169390A (en) * 1937-04-15 1939-08-15 Standard Stoker Co Inc Locomotive tender
US2348494A (en) * 1940-09-23 1944-05-09 Peters Peter Paul Stoker
GB934991A (en) * 1959-10-15 1963-08-21 James Hodgkinson Salford Ltd Improvements in fuel feeding devices for furnaces of boilers
US3708078A (en) * 1971-08-26 1973-01-02 Environmental Control Prod Inc Batch ram feeding apparatus
HU203400B (en) * 1985-02-28 1991-07-29 Sermet Oy Burner particularly for burning biomass

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0443979A3 (en) * 1990-02-21 1992-03-04 Licencia Holding S.A. Device for tearing-up and stoking straw

Also Published As

Publication number Publication date
EP0352621A3 (en) 1990-08-16
EP0352621B1 (fr) 1992-12-09
JPH0285603A (ja) 1990-03-27
DE3825930C1 (fr) 1989-12-14
US5009171A (en) 1991-04-23
JP2682704B2 (ja) 1997-11-26

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