WO2020009620A1 - Grille - Google Patents

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Info

Publication number
WO2020009620A1
WO2020009620A1 PCT/RU2019/050103 RU2019050103W WO2020009620A1 WO 2020009620 A1 WO2020009620 A1 WO 2020009620A1 RU 2019050103 W RU2019050103 W RU 2019050103W WO 2020009620 A1 WO2020009620 A1 WO 2020009620A1
Authority
WO
WIPO (PCT)
Prior art keywords
grate
inner drum
drum
lamellas
lamella
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.)
Ceased
Application number
PCT/RU2019/050103
Other languages
English (en)
Russian (ru)
Inventor
Александр Петрович СЕМЕНИХИН
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN201980039950.6A priority Critical patent/CN112368514A/zh
Publication of WO2020009620A1 publication Critical patent/WO2020009620A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H17/00—Details of grates
    • F23H17/12—Fire-bars

Definitions

  • the utility model relates to devices for burning solid fuel and can be used in the power industry.
  • the “Grate-grate swath” SU 1198326 [2] comprising end support disks with gratings reinforced therein, made in the form of profiled beams installed along the swath, each girder on both sides having ribs located at different heights and forming with similar ribs of adjacent grates, labyrinth channels for air passage.
  • the disadvantage of this device is the low strength, determined by the low strength of heat-resistant beams.
  • the closest technical solution is the "Boiler” RU PM 106723 [1], including a grate, containing an inner drum, an outer grate cylinder coaxial to the inner drum, dividing radial ribs between the inner drum and the outer cylindrical grate field, forming sectors.
  • the device has increased strength due to the presence of an internal drum, on which radial ribs rest.
  • the disadvantage is the low durability due to overheating of the elements in contact with open flame and the uneven thermal expansion of the elements located inside the combustion field, which leads to uneven forces inside the structure due to the uneven heating of the structural elements. Low durability leads to increased consumption of material.
  • the disadvantage is the low manufacturability.
  • the technical result of the proposed utility model is to increase durability and, as a result, reduce material consumption while increasing manufacturability.
  • the technical result is achieved in that the grate containing the inner drum coaxial with the inner drum of the outer grate cylinder, the radial ribs between the inner drum and the outer cylindrical grate field, characterized in that the radial ribs and the outer drum of the grate are formed by radially spaced solid lamellas connected to the outer the surface of the cylinder of the inner drum.
  • Each lamella can be cast, have a sole, with a rib, a sole and two toothed visors on both sides of the rib, the set of external, upper according to the drawing surfaces of the visors forms a cylindrical grate, the adjacent visors form a meandering gap between the edges for feeding the oxidizer into the combustion zone .
  • the lamellas can be connected to the outer surface of the inner drum by welding the sole, which allows a heat-resistant connection.
  • the lamellas can have openings in the center of the rib connected by a fixing wire located concentrically to the inner drum, which will further improve the reliability of lamellas fastening.
  • the lamella ribs can have non-through radial fillets (grooves), and on the outer surface of the lamellas, forming an external grate field, there is a longitudinal beard (protrusion) oriented along the axis of the inner drum.
  • the presence of fillets will improve the ratio bending strength to thermal conductivity of the ribs. Long projecting barbs on the grate field will allow better fuel retention.
  • FIG. 1 cross section
  • FIG. 2 longitudinal view in partial section
  • FIG. 3 general view of the lamella
  • the inner drum consists of a cylinder of the inner drum 1 connected to the supporting disks of the inner drum 2.
  • the soles of 4 lamellas consisting of ribs 5 and gear peaks, are welded 6.
  • the plane of symmetry of each rib passes through the axis the inner drum, which is also the axis of the cylinder of the outer grate field.
  • the fixing wire is arranged concentrically and welded in several places by means of gaskets to the lamellas.
  • a longitudinal beard 10 is located parallel to the plane of the edge of the lamella 5, and parallel to the axis of the inner cylinder and the axis of the outer grate cylindrical field.
  • the space between the ribs of the lamellas forms channels into which air is supplied for burning fuel located on the grate, the air passes through zigzag slots between the toothed visors of the lamellas.
  • the technical result is an increase in durability and, as a result, a reduction in material consumption is achieved due to better heat removal from the visors directly in contact with the fire, made integral with the rib. Also, the increase in durability is facilitated by the absence of elements located inside the combustion field. The execution of lamellas whole, from a homogeneous material, reduces the unevenness of the thermal expansion of the grate.
  • the claimed design and technical solution can be used for the manufacture of grates, mainly for continuous fuel cycle furnaces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Solid-Fuel Combustion (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

Le modèle d'utilité de l'invention concerne des dispositifs pour la combustion d'un combustible solide. Le résultat technique consiste en une augmentation de la durée d'exploitation et une diminution de la consommation de matériaux. L'invention concerne une grille comprenant un tambour interne, un champ cylindrique de grille externe coaxial au tambour interne, des arêtes radiales entre le tambour interne et le champ de grille cylindrique externe; des arêtes radiales et un tambour externe de grille sont formés par des lamelles pleines disposées radialement et connectées à la surface externe du cylindre du tambour interne.
PCT/RU2019/050103 2018-07-03 2019-07-02 Grille Ceased WO2020009620A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201980039950.6A CN112368514A (zh) 2018-07-03 2019-07-02 炉栅

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2018124247 2018-07-03
RU2018124247 2018-07-03

Publications (1)

Publication Number Publication Date
WO2020009620A1 true WO2020009620A1 (fr) 2020-01-09

Family

ID=69059245

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2019/050103 Ceased WO2020009620A1 (fr) 2018-07-03 2019-07-02 Grille

Country Status (2)

Country Link
CN (1) CN112368514A (fr)
WO (1) WO2020009620A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5081939A (en) * 1989-05-10 1992-01-21 Deutsche Babcock Anlagen Aktiengesellschaft Roller-type grate and bar therefor
SU1782301A3 (ru) * 1989-05-25 1992-12-15 Furs Pikar Бapaбah koлochиkoboй peшetkи
RU106723U1 (ru) * 2011-02-07 2011-07-20 Открытое акционерное общество "Красноярский машиностроительный завод" Котел водогрейный

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU17574A1 (ru) * 1929-07-10 1930-09-30 Т.Ф. Макарьев Цилиндрический огнеупорный элемент в топках дл решеток с вращающимис колосниками, поворотных шиберов и т.п.
DD244802A1 (de) * 1985-12-24 1987-04-15 Forsch U Rationalisierung Tga Ausbrennrost fuer feuerungen zur verbrennung fester brennstoffe
DE19952198A1 (de) * 1999-10-30 2001-05-10 Bbp Environment Gmbh Rostwalze für einen Walzenrost
CH697973B1 (de) * 2005-06-10 2009-04-15 Alstom Technology Ltd Rostwalze.
KR101189791B1 (ko) * 2009-07-03 2012-10-10 (주)고허트 버너
CN205825059U (zh) * 2016-05-25 2016-12-21 何航 一种设有叶片的滚筒式炉桥
CN206055651U (zh) * 2016-09-28 2017-03-29 李亭广 高效节能环保取暖炉的炉排结构

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5081939A (en) * 1989-05-10 1992-01-21 Deutsche Babcock Anlagen Aktiengesellschaft Roller-type grate and bar therefor
SU1782301A3 (ru) * 1989-05-25 1992-12-15 Furs Pikar Бapaбah koлochиkoboй peшetkи
RU106723U1 (ru) * 2011-02-07 2011-07-20 Открытое акционерное общество "Красноярский машиностроительный завод" Котел водогрейный

Also Published As

Publication number Publication date
CN112368514A (zh) 2021-02-12

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