Modified journal assembly for pulverizer

Patent metadata

Field	Value
Publication number	US-2016346787-A1
Application number	US-201615160701-A
Country	US
Kind code	A1
Filing date	May 20, 2016
Priority date	May 27, 2015
Publication date	Dec 1, 2016
Grant date	—

Abstract

The present disclosure relates to a pulverizer includes a pulverizer housing with an grinding assembly having a grinding table situated therein. The grinding table provides a grinding surface area for a material, such as a fossil fuel, such as coal, to be pulverized. The grinding table is mounted on a gearbox shaft operatively connected to a gearbox drive mechanism so as to be capable of driven rotation within the pulverizer housing. A journal assembly having a journal head and the journal assembly and a spring assembly are mounted on the pulverizer housing so that the journal head engage the spring assembly.

First claim

1 . A pulverizer comprising:
a grinding assembly including a grinding table which provides a grinding surface area to pulverize fuel, at least one journal assembly including a journal head connected to a journal shaft to support at least one grinding roll, the journal shaft transmits a force through the at least grinding roll which rotates on the grinding surface area due to rotational force provided by the grinding table to pulverize the fuel, the at least one journal assembly is pivotally mounted on a pair of pivot shaft to move pivotally in a pivoting motion towards the grinding surface area, at least one spring assembly including a spring in a spring housing, provides support and the force for the pulverization of the fuel to the journal assembly through the journal head,

2 . The Pulverizer as claimed in claim 1 , wherein in the pair of pivot shaft connect the at least one journal assembly to pulverizer housing.

3 . The Pulverizer as claimed in claim 1 , wherein at least one single type of bearing provides rigidity and support to the rotation of the at least one grinding roll in the at least one journal assembly

4 . The Pulverizer as claimed in claim 1 , wherein a single housing is provided to accommodate all the bearings in the at least one journal assembly.

5 . The Pulverizer as claimed in claim 4 , wherein the single housing is made from casting or forging in the at least one journal assembly.

6 . The Pulverizer as claimed in claim 1 , wherein one end play is required for all the bearings in the at least one journal assembly.

7 . The Pulverizer as claimed in claim 1 , wherein the at least one journal assembly is sized for retrofit in the pulverizer housing.

Assignees

• Alstom Technology Ltd

Inventors

• RAO Indragantisatysairam Satysai Ramchandra
• Aditya Krishnendu
• Chauhan Sunil
• Chauhan Mahesh Govind

Classifications

• B02C15/04 Primary

  Mills with pressed pendularly-mounted rollers, e.g. spring pressed · CPC title

• B02C15/004

  Shape or construction of rollers or balls · CPC title

• B02C15/045

  pressed against the interior of a ring rotating in a vertical plane · CPC title