# US 6,302,038 B1 · Anti-erosion system of grate in stoker-type incinerator

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- Number: US 6,302,038 B1
- Document ID: US6302038B1
- Status: Granted
- Kind: B1
- Application number: 09/308,831
- Filed: 1999-05-25
- Granted: 2001-10-16
- Earliest claimed: 1996-11-27
- Assignees: Daewoo Engineering & Construction Co., Ltd.; Daewoo Heavy Industries Ltd.; Korea Institute of Machinery & Metals
- Inventors: Jung Dae Seo; Se Kwang Kim; Il Sang Huh; Sang In Keel; Seock Joon Kim
- Web page: https://patentgrep.com/patent/US6302038B1

## CPC

- F23H 17/00: Details of grates
- F23H 17/12: Fire-bars
- F23G 2203/10: Stoker grate furnace
- F23H: GRATES (inlets for fluidisation air for fluidised bed combustion apparatus F23C10/20); CLEANING OR RAKING GRATES
- F23G: CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION

## Abstract

A fire grate assembly for stoker incinerators. A plurality of stationary and movable grate members are alternately arranged in the assembly. The assembly also has a preventing member, such as a liner plate, which is detachably mounted to an end of each of the movable grate members for preventing the stationary grate members and the movable grate members from directly contacting each other, while allowing the movable grate members to be linearly movable relative to the stationary grate members. The preventing member is replaceable and can have a countersunk hole, thus being adapted for bolting the end of each of the movable grate members.

## Claims

### Claim 1

A fire grate assembly for stoker incinerators, comprising:
a plurality of stationary and movable grate members alternately arranged in the fire grate assembly;
means for preventing said stationary and movable grate members from directly contacting each other, while allowing said movable grate members to be linearly movable relative to said stationary grate members; and
wherein said preventing means is detachably mounted to each of said movable grate members, said preventing means thus replaceable.

### Claim 2 (depends on 1)

The fire grate assembly according to claim 1, wherein said preventing means comprises a liner plate detachably mounted to an end of each of said movable grate members.

### Claim 3 (depends on 2)

The fire grate assembly according to claim 2, wherein said liner plate has a countersunk hole, thus being adapted for bolting to the end of each of said movable grate members.