CN2322681Y

CN2322681Y - Device for removing unbroken stone and wooden block in coal breaker for electric power plant

Info

Publication number: CN2322681Y
Application number: CN 97230008
Authority: CN
Inventors: 马魁山
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-12-03
Filing date: 1997-12-03
Publication date: 1999-06-09
Anticipated expiration: 2007-12-03

Abstract

The utility model relates to a device for removing unbroken stones and wooden blocks in coal breakers for electric power plants. The utility model is characterized in that the broken coal lowering position of existing coal breakers is provided with a large outlet. A material guiding pipe or plate is arranged under the outlet. A coarse and thin material separator is arranged under the material guiding pipe. A broken material recovery and material guiding hopper and a block impurity eliminating and material guiding hopper are arranged under the separator. By using the utility model, the smoothness of a coal breaker can be ensured when coal contains stones and wood blocks which can not be broken by the coal breaker, and impurities can be eliminated out from the strip machine of a system. The impurities can not enter a coal pulverizer to generate damage, which is in favor of the normal running of the system.

Description

Broken stone and wooden unit scavenge unit in the power plant soot coal breaker

Power plant soot processing technology field during the utility model belongs to operation and transports.

Before the coal-fired abrasive dust of coal-burning power plant, need one broken coal operation.In existing systems, broken coal is to spill from thin grate in the coal breaker, enters coal pulverizer.This convergence process, not allowing has impurity in the coal.Yet at home.The quality of coal does not increase, and is many with not broken stone, impurity such as wooden unit.Thereby often cause the grate hole plug.The producer that has is in order to keep the coal road unobstructed, removes a part of grate bar and forms macropore, though such result has overcome obstruction, making brokenly not, crushed stone and wooden unit enter coal pulverizer.This will make the coal pulverizer wearing and tearing strengthen, and fault increases, the decline of exerting oneself, and influence is produced.

The purpose of this utility model is to increase extension apparatus behind coal breaker discharging grate, has both guaranteed the unobstructed of broken coal operation, again can be with not broken stone.Impurity such as wooden unit separate to be removed.

Technology of the present utility model constitutes: a bulk miscellaneous object outlet is opened in original coal breaker bottom.Outlet is connected a passage or stock guide down.Be equipped with thick under the passage.The fines seperator.There are foreign material discharging buckets such as fines recovery and stone the seperator below.

Use good effect of the present utility model to be: both having guaranteed that coal breaker outlet is unobstructed does not stop up, and makes again to fail broken foreign material such as stone in the broken coal and be eliminated before entering coal pulverizer, has guaranteed the good operation condition of coal pulverizer.

Accompanying drawing is a schematic diagram of the present utility model.

Embodiment of the present utility model comprises following content.The thin grate that existing coal breaker 1 bottom is gone out broken coal removes the bigger leak of part formation, to should the hole being installed by a passage 2 down.The oblique placement of passage.Corresponding broken coal passage one side is thin grate, and other sides are the checkerwork cell form, and passage is thickness material seperator 3 down, and this seperator can require to select for use in the seperator of existing form according to granularity and workload.Seperator is down for there being impurity such as stone to concentrate and transloading equipment 4 at impurity outlet place.Broken coal is concentrated bucket or is promoted conveyance 5.The broken coal bucket can surround with steel plate, exports corresponding system belt feeder.The impurity material guiding hopper surrounds with steel plate equally, and outlet extends beyond system's belt feeder.The course of work of the present utility model is: the fire coal in coal breaker 1 is fallen on system's belt feeder from thin grate position through fragmentation, is sent to coal pulverizer, stone.Wooden unit falls into passage 2 from the macropore of leaving, the a part of broken coal that mixes wherein drops on system's belt feeder from the thin grate on the passage, all the other enter seperator 3 and separate broken coal and impurity bulk, broken coal thoroughly separates with the impurity bulk on seperator, and broken coal is transported through concentrating hopper to be discharged into outside the belt feeder.The structure of the present utility model and the course of work have below promptly been finished.

Claims

Broken stone and wooden unit scavenge unit in a kind of power plant soot coal breaker, it is characterized in that: a bulk outlet is opened in the bottom of original coal breaker (1), a stock guide or passage (2) are divided in outlet, connect thick, segmentation under the passage and disembark (3), foreign material discharging bucket (4) fines bucket or elevators (5) such as stone are arranged under the seperator.