Datang Duolun broke the high-water brown coal dry

The lignite drying process equipment independently developed by Datang Duolun Coal Chemical Company was recently granted a national invention patent. Applying this patent Datang Duolun Coal Chemical Company's coal pre-drying plant in 2013 used a total of 1.728 million tons of high-moisturized lignite to ensure the adequate supply of three dry gasifiers.
Datang Duolun Coal Chemical Project 3 sets of Shell Six Burner gasifiers treat about 10% of brown coal with water content, but the local brown coal moisture content is up to 40%. In the face of this problem, Datang passed a lot of research at the beginning of the construction of coal chemical projects and found that the coal drying technology available in China cannot meet such a large scale whether it is rotary drum drying technology, spill drying technology or boiling bed drying technology. Lignite drying requirements. Through technical demonstration, the company decided to independently research and development, technical personnel for the first time put forward a large-scale tube drying technical plan and equipment development program to reduce lignite moisture, try to indirect heat exchange through the shell and tube heat exchanger, so that the use of low-quality brown coal moisture content to use index.
In September 2006, at the test base of Datang International Xiahuayuan Power Plant, the pilot plant for pre-drying lignite with a processing capacity of 6 tons per hour was installed and tested, and a number of parameters were tested and operated. The equipment operation parameters laid the foundation for the large-scale industrial application of lignite pre-drying equipment in Datang Duolun coal chemical project. In this device, the heat transfer medium is not in direct contact with coal, which makes the whole drying process safe and reliable, and solves the safety hazards brought about by direct drying of coal with low ignition point.
In June 2011, 15 casing drying equipments were put into operation at the Duolun coal chemical project site. In December 2012, the trial production was transferred to the normal production operation. After drying, the inferior lignite fully satisfied the coal used in the coal gasification plant of the project. Quantity, particle size, moisture index.
At present, Duolun Coal Chemicals site 15 casing drying equipment is running normally, each set of dryer drying 46 tons of coal per hour, out of the dryer coal particle size is less than or equal to 6 mm, the utilization rate of 99%.

                                     


1.Our company produce  high quality products for small and medium plate, plate type, shell type, automobile connecting rod and the hydraulic valve and mold class of complex parts .realized the high precision, high efficiency,automatic , flexible, low cost and many other features.

2. features of machine

1)Basic part of the machine adopts special casting, useing of  Vertical Machining Center lathe bed and a sliding seat , so it has high rigidity structure. height from worktable to ground is also greatly reduced, it is more easy to operate  and loading and unloading workpiece for workers

 

2)The guide rail and the work table are quenching and grinding, plastic pate matched with the guide rail lubrication, automatic Intermittent lubrication , feeding smoothly without crawling, keeping good accuracy.


3)Machine tool with x/ yaxes both are the ball screw drive, connection mode for motor and screw is direct connection


4)The machine has the strong cutting, high flow rate of cooling, the width of the swarf discharging slot


5)Can be equipped with guangzhou cnc system .model 980MD . Three axis  are servo motor control mode.

 

Spindle box is full gear transmission structure, the max torque of the spindle is  350NM, spindle box can move up and down by manual.




MAIN SPECIFICATIONS

Items

Units

MAIN SPECIFICATIONS

ZK5140C

ZK5140B

ZK5150B

ZK5163C

ZK5180C

ZK51100

ZXK50

Table size

mm

1000×630

1000×545

1000×545

1000×545

1000×545

1100×1895

1000×545

Area of worktable

mm

850×500

850×400

850×400

850×400

850×400

700×800

850×400

Max. drilling dia

mm

φ40

φ40

Φ50

Φ63

Φ80

Φ100

Φ50

T-slot width×quantity

mm

18×5

18×3

18×3

18×3

18×3

22×3

18×3

Spindle taper hole

Mouse

4#

4#

5#

5#

6#

6#

4#

Spindle speeds

r/min

45-2000/12

45-2000/12

45-2000/12

40-570/9

40-570/9

61/80/110/138(4steps)

45-2000/(4steps auto)

Power of main motor

kw

3

3

3

5.5

5.5

15

3.7/5.5

Travel(X/Y/Z)

mm

700×500×240

850×400×240

850×400×240

850×400×240

850×400×240

600(Z)

850×500×600

Distance from spindle nose to worktable

mm

100-700

100-700

100-700

184-724

184-724

300-900

200-800

Distance from spindle center line to column

mm

500

335

335

375

375

480

445

Rapid travel rate X/Y/Z

m/min

15/15/4

15/15/4

15/15/4

15/15/1.3

15/15/1.3

Z:4

15/15/10

CNC control system

 

GSK

GSK

GSK

GSK

GSK

GSK

GSK

Position accuracy(X/Y)

mm

±0.025

±0.02

±0.02

±0.025

±0.025

±0.08(Z)

±0.02

Repeatability accuracy(X/Y)

mm

±0.02

±0.012

±0.012

±0.012

±0.012

±0.04(Z)

±0.012

Machine weight(N.W/G.W)

T

2.8/3.3

2.6/3.1

2.6/3.1

3/3.5

3/3.5

6/7

4/4.5

Overall dimensions(L×W×H)

mm

1820×1960×2250

1880×1590×2360

1880×1590×2360

1880×1590×2360

1880×1590×2360

1670×2570×3130

1880×2490×2850

Packing case(L×W×H)

mm

2100×2350×2800

2360×2490×2580

2360×2490×2580

2360×2490×2580

2360×2490×2580

2030×2750×3050

3360×2490×2880

 ZK5140B PICTURE ZK5180C


CNC Vertical Drilling Machine

CNC Vertical Drilling Machine,CNC Precision Drilling Machine,Automatic Vertical Drilling Machine,Complex Parts Drilling Machine

NingXia DaHe Machine Tool (Group) Imp And Exp Co.,Ltd , http://www.nxdhjcmachine.com