EP0473880A1 - Refroidisseur à grilles poussantes - Google Patents

Refroidisseur à grilles poussantes Download PDF

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Publication number
EP0473880A1
EP0473880A1 EP91107963A EP91107963A EP0473880A1 EP 0473880 A1 EP0473880 A1 EP 0473880A1 EP 91107963 A EP91107963 A EP 91107963A EP 91107963 A EP91107963 A EP 91107963A EP 0473880 A1 EP0473880 A1 EP 0473880A1
Authority
EP
European Patent Office
Prior art keywords
grate
conveying direction
plates
sliding
grate plates
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Withdrawn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
EP91107963A
Other languages
German (de)
English (en)
Inventor
Lothar Dipl.Ing. Jungemann
Manfred Strohbusch
Johannes-Josef Ing.Grad. Auf Dem Venne
Hermann Dipl.Ing. Niemerg
Herbert Dipl.Ing. Pingel
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Krupp Polysius 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 Krupp Polysius AG filed Critical Krupp Polysius AG
Publication of EP0473880A1 publication Critical patent/EP0473880A1/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • F27D15/022—Cooling with means to convey the charge comprising a cooling grate grate plates

Definitions

  • the invention relates to a moving grate cooler according to the preamble of claim 1.
  • sealing elements are provided on the side of the outer grate plates, which are intended to prevent material from falling through the side of the grate plate edges. But it is precisely in this area that the advancing movement of the movable plate leads to a particular accumulation effect, so that the material is clamped between the movable and fixed grate plate or between the push edge and the sealing element above it. The goods can then only be pushed out with increased effort.
  • the invention is therefore based on the object to further develop the shear grate cooler provided in the preamble of claim 1 in such a way that jamming of goods between fixed and moving grate plate or between shear edge and overlying sealing element in the area of the outer grate plates is avoided.
  • the outer grate plates have lateral boundary walls which are designed in such a way that the material between the movable and fixed grate plate is diverted inward (i.e. in the direction of the center of the grate) in the manner of a ploughshare. As a result, the good is pushed out of the critical area, so that jamming of good between the grate plates and the side walls or the sealing elements is avoided.
  • FIG. 1 shows a plan view of the outer grate plates of the rows running transversely to the conveying direction (arrow 4).
  • a row with fixed grate plates 2 and a row with movable grate plates 1 are arranged in succession.
  • the two outer grate plates of each row have, on their outer side facing the longitudinal edge of the grate, a lateral boundary wall 3 which projects upward above the grate surface.
  • the boundary wall 3 successively includes a rear section 3a running straight in the conveying direction, a central section 3b running obliquely inward in the conveying direction and a front section 3c running straight in the conveying direction.
  • the individual grate plates engage with their front section 3c with a sliding play in the rear section 3a of the grate plate following in the conveying direction.
  • the boundary wall 3 of the individual grate plates thus runs in the rear section 3a and in the front section 3c parallel to the conveying direction (arrow 4).
  • the middle section 3b which runs obliquely inwards in the conveying direction, the outside, i.e. that side of the boundary wall 3 which faces away from the grate surface is offset inwards in the region of its front section 3c with respect to the rear section 3a. This offset corresponds exactly to the material thickness of the rear section 3a.
  • the obliquely inwardly extending central section 3b forms a kind of ploughshare for the goods transported on the grate surface, which guides the goods inwards away from the boundary wall.
  • the offset between the rear section 3a and the front section 3c is fixed on the outside of the boundary wall 3 to ensure perfect sliding play between successive grate plates
  • the offset on the inside of the boundary wall can, if desired, be increased by the wall thickness of the front section 3c compared to the rear Section 3a is enlarged.
  • the wall thickness of the central section 3b will increase continuously in the conveying direction, cf. Fig. 1.
  • the angle at which the central section 3b runs obliquely inwards in the conveying direction with respect to the rear section 3a can be determined within a certain range.
  • the material transported on the moving grate cooler should, on the one hand, be routed inward as far as possible from the boundary wall 3 and, on the other hand, the excessive oblique central section 3b of the boundary wall 3 must not result in an excessive accumulation effect.
  • FIG 2 shows a sectional side view along the line 11-11 of FIG Divide the middle partial surface 1, which runs obliquely upwards, and a front partial surface 1, which runs essentially parallel to the conveying direction.
  • the resulting difference in height between the rear partial surface 1a in the conveying direction and the partial surface 1c in the conveying direction of the grate plate 1 is determined by a in the conveying direction provided the front end of the grate plate 1 provided push edge 1d.
  • the height of the substantially vertical shear edge 1 is dimensioned so that it rests on the partial surface 1 a of the next grate plate.
  • the upper edge of the boundary wall 3 runs parallel to the conveying direction over the entire area of the grate plate (arrow 4).
  • the height of the boundary wall 3 is set so that its upper edge is flush with the front partial surface 1 of the grate plate.
  • the grate plate 1 has ventilation holes 6 in the area of the middle and front partial surfaces 1 b, 1.
  • fastenings 1f are also provided, which are provided for connecting individual grate plates to rows of grates or to the entire grate surface.
  • a cover 5 which completely overlaps the lateral boundary walls 3 is also provided.
  • the cover 5 extends in a straight line in the conveying direction (arrow 4) and thereby covers the boundary walls 3.
  • the cover 5 is clearly inferior to the boundary wall 3 in the region of the rear section 3a inside over the boundary wall 3b, while in the area of the front section 3c there is only a small projection.
  • Figure 3 which is a sectional front view along the line III-111 of Figure 2. Sealing elements (not illustrated) are expediently provided between cover 5 and boundary walls 3, in order to ensure adequate sealing, in particular in the area of the movable grate plates.
  • the material located on the grate plates is moved in the conveying direction (arrow 4) by the back and forth movement (arrow 7) of the movable grate plates 1.
  • the material receives its movement component in the conveying direction (arrow 4) through the relative movement in the conveying direction between the pushing edge 1 and the front partial surface of the next grate plate.
  • the material located there is ploughshare-like inwards, i.e. directed away from the boundary wall 3 (arrow 8 in Fig. 1).
  • the density of the material in the area of the individual grate plates covered by the cover 5 is substantially lower than on the rest of the grate surface.
  • there is essentially only loose material here which can be easily guided inwards with the pushing edge 1 d, without jamming between the front and rear sections 3 c and 3 a of the boundary wall 3 or between the boundary wall 3 and the cover 5 can.
  • FIGS. 1 to 3 The exemplary embodiment described in FIGS. 1 to 3 is grate plates with a molded-on boundary wall 3.
  • a separate boundary wall 3 ′ is shown in FIG. 4 as a second exemplary embodiment, which is detachably connected to the normal grate plates, for example by screwing can be.
  • the outer wall of the boundary wall 3 'screwed to a grate plate has no significant differences apart from the additional fastening options 9 compared to the boundary wall 3.
  • boundary walls 3 has the advantage that no additional grate plate models are required for the two outer grate plates in a row.
  • the boundary walls 3 cast onto the grate plates have the considerable advantage that they optimally introduce the lateral force acting on the boundary wall 3 through the material into the base body of the grate plate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)
  • Incineration Of Waste (AREA)
EP91107963A 1990-09-07 1991-05-16 Refroidisseur à grilles poussantes Withdrawn EP0473880A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9012812U 1990-09-07
DE9012812U DE9012812U1 (de) 1990-09-07 1990-09-07 Schubrostkühler

Publications (1)

Publication Number Publication Date
EP0473880A1 true EP0473880A1 (fr) 1992-03-11

Family

ID=6857283

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91107963A Withdrawn EP0473880A1 (fr) 1990-09-07 1991-05-16 Refroidisseur à grilles poussantes

Country Status (2)

Country Link
EP (1) EP0473880A1 (fr)
DE (1) DE9012812U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5575642A (en) * 1995-12-01 1996-11-19 The Carondelet Corporation Grate plate

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9417515U1 (de) * 1994-10-31 1996-02-29 Babcock Materials Handling Division GmbH, 21614 Buxtehude Schubrost für Klinkerkühler
DE19504588B4 (de) * 1995-02-11 2006-07-13 Khd Humboldt Wedag Gmbh Rostplatte für Schubrostkühler zum Abkühlen von heißem Gut

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE431291A (fr) *
DE2000631A1 (de) * 1969-01-13 1970-07-23 Fuller Co Waermeaustauschvorrichtung
US4289485A (en) * 1979-08-15 1981-09-15 Koppers Company, Inc. Sinter machine-pelletizing machine wear and baffle plate for pallet side plate
EP0076337A1 (fr) * 1981-10-03 1983-04-13 Carl Schenck Ag Fond d'auge ou de crible assemblé de plaques

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE431291A (fr) *
DE2000631A1 (de) * 1969-01-13 1970-07-23 Fuller Co Waermeaustauschvorrichtung
US4289485A (en) * 1979-08-15 1981-09-15 Koppers Company, Inc. Sinter machine-pelletizing machine wear and baffle plate for pallet side plate
EP0076337A1 (fr) * 1981-10-03 1983-04-13 Carl Schenck Ag Fond d'auge ou de crible assemblé de plaques

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5575642A (en) * 1995-12-01 1996-11-19 The Carondelet Corporation Grate plate

Also Published As

Publication number Publication date
DE9012812U1 (de) 1990-11-08

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