Pulverized Coal Preparation Production Line

【Capacity】:

1t/h-40t/h

【Main Materials】:

Anthracite, Meagre Coal, Soft Coal, Brown Coal, Shale

【Main Equipment】:

Coal Ball Mill, Powder Separator

Serves And Solution

Application Materials: Anthracite, Meagre Coal, Soft Coal, Brown Coal, Shale

Our Pulverized Coal Preparation Production Line is composed of Raw Coal Storage & Transportation System, Grinding System, Dust Collecting System, Electrical & Instrument Automation System. By the consideration of safety protection for equipment and system, explosion venting valve and nitrogen protection port are adopted at hot air inlet pipeline of Air Swept Coal Mill and coal air output pipeline. Speed of Powder Separator is regulated by VVF, the output fineness could be controlled by adjustment of frequency converter by remote control.

Our Advantages:

1. Saving Energy

Air swept coal mill is an ideal coal processing equipment that can both grind and dry, with characteristics of high efficiency, energy saving, environmental protection, 8% and above of its grinding coal can pass through the 200 mesh screen, and the water content can be under 2%, it is an ideal grinding equipment for coal powders that are used in industrial furnaces and rotary kilns and other equipment.

2. Uniform particle size

The improved O-Sepa classifier is a kind of high-efficiency classifier developed on basis of the technology of common O-Sepa classifier and using the most advanced technology in the world. The distribution of finished particles is more uniform, while the particle size ratio is more reasonable.

3. Environmental protection

Effective measures have been taken to guarantee strict environment protection standards. Different efficient dust collectors are set at all dust producing points according to different characteristics of waste gas.

4. High degree of automation    

There is no manual operation in the process of mill running, which realizes the automatic control with long-term, stable, effective, makes milling process more stable, realizes fine work of production.

Poduction Technology:

Raw coal storage and transportation system

1The raw coal with size under 35mm and moisture under 15% is conveyed to raw coal shed by auto dumper. The raw coal storaged in coal shed is loaded to coal receiving hopper by loader. The raw coal in coal receiving hopper is feed to bucket elevator evenly by speed adjustable feeding belt conveyor. The raw coal is discharged when it is lifted to required height and then come to powder making system by double layer air lock valve.

2. The rod valve is set between coal receiving hopper and vibrating feeder. It would be closed for maintenance operation of speed adjustable feeding belt conveyor. The feeding belt conveyor is speed adjustable which facilitate for generating operation and management. The iron separator is set on the top of speed adjustable belt conveyor which could get rid of scrap iron mixed in the raw coal. This maximally reduce the threat of scrap iron to the system.

Pulverized Coal Preparation System

1. The raw coal from storage and conveying system come into air swept coal mill for grinding. The coal powder mass and heat transfer with 200~350 hot air. The moisture enter into flue gas from coal. Coal powder is dried by hot air. Then coal powder come to powder separator with airflow for classification. The separated coarse powder come to mill for regrinding. The fine powder comes to powder collecting system with airflow through coal wind pipe.

2. To protect the equipment and system safety, the explosion venting valve and nitrogen protection connector are set on hot wind inlet pipe of air swept coal mill and outlet pipe of coal wind. Powder separator uses frequency conversion motor to adjust speed. It realizes remote control of the discharging fineness of powder separator by adjusting frequency converter.

Pulverized Coal Collecting System

Under the negative pressure of induced draught fan set after explosion proof bag filter, the qualified coal powder discharged from powder separator, and come to explosion proof bag filter by coal wind pipe. After it goes to filter bags of dust collector for filtration, the coal powder is collected and drop to coal powder hopper underneath the dust collector. The filtered and purified flue gas is discharged to air by funnel through induced fan. The pulverized coal storage in coal powder hopper is discharged to bucket elevator by revolving discharger and screw conveyor and then lift to the top of coal powder hopper by bucket elevator. After that it goes to coal powder hopper by screw conveyor on the top of hopper.

Configuration:

Process equipment for pulverized

Electrical equipment for pulverized

coal preparation station

coal preparation station

No.

Equipment Name

No.

Equipment Name

1

Grid valve

1

Low voltage incoming cabinet

2

Belt scale feeder

2

ID fan frequency cabinet

3

Permanent iron remover

3

Control & power distribution cabinet

4

Bucket elevator

4

Operation desk

5

Heavy hammer air lock

5

Inlet air temperature

flap dust discharge valve

6

Air swept coal mill

6

Outlet air temperature

7

Lubrication oil station

7

Coal powder silo temperature

8

Dynamic separator

8

Dust hopper (bag filter) temperature

9

Explosion-proof bag filter

9

Temperature of head bearing of ball mill

10

Star type discharger

10

Temperature of tail bearing of ball mill

11

Screw conveyor

11

Inlet temperature of bag filter

12

ID Fan

12

Outlet temperature of bag filter

13

Bag filter on the silo

13

Inlet air pressure of ball mill

(three resistance filter bag)

14

High temperature butterfly valve

14

Outlet air pressure of ball mill

15

Cooling air valve

15

Outlet air pressure of separator

16

Explosion-proof valve

16

Outlet air pressure of bag filter

17

Nitrogen protection system

17

Raw coal silo damped rotation level indicator

18

Screw conveyor

18

Coal powder silo damped rotation level indicator

19

Bucket elevator

19

Cable tray

20


20

Power cable


Craft Introduction

Recomment Products

Process Introduction

Contact Us

  • Name *

  • Tel

  • Country

  • Company

  • E-mail *

  • Message *

Contact Us

Address:
Qiaoloucaizhai industrial park,XingYang,ZhengZhou,Henan,China

Phone:+86-0371-55902868

Email:ec03@zkcorp.com

Whatsapp:+86 18937185591

wechat:+86 18937185591

Instant Message

Copyright©2015.Company name All rights reserved 豫ICP备11012423号-4

Get Quote

  • *Your name:
  • Telephone:
  • *Email:
  • *Message: