Special Filter Press for Treating Tailings and Cleaned Coal

Introduction

The special filter press for coal washing is an important equipment for the coal preparation plant to realize the recycling and washing closed cycle in the coal sludge plant.

The filter press has many unique features in design: firstly adopt chain drive to close, then use five cylinders to compact, which greatly shortens the length of the cylinder, which is beneficial to the enlargement of the equipment. The filtrate adopts the open and close flow discharge mode to improve the filtration speed; based on the liquid level meter, can adapt to different concentrations of coal slurry water, using PLC to control, can automatically complete the feeding, filtering, unloading, reduce the labor intensity of workers, and the filter cake moisture can be adjustments within a certain range according to needs.

The special filter press for washing coal has the characteristics of high technical content, fully automatic operation, safe and reliable equipment, fast adaptability of high pressure filter material, low moisture content of filter cake, strong production capacity and good economic effect. The special filter press for coal washing is mainly used for dewatering of clean coal, tail coal and primary slime, which has high promotion and application value.

Therefore, the slime filter press is the first choice for the special filter press of the coal washing plant.

II. Interpretation of Model Type

1. Filter press type: X: Chamber filter press

2. Maximum filtration pressure: 10:1.0 Mpa

3. Filtrate discharge type: A: close discharge

4. Plate shifting type: Z: automatic

5. Filter plate type: G: membrane

6. Drip collection device type: F: auto drip collection drip tray

7. Auxiliary function: Q: auto cleaning filter cloth

8. Filtration area: Unit: 250㎡

9. Filter plate dimensions: Length*width: 1500*1500 unit: mm

10. Filter plate materials: U for reinforced PP

11. Cake washing type: K: cake washable

III. Technical Part

Item	Name	X10AZG250/1500-UK
1	Filter area(M2)	250
2	Filter pressure（MPa）	≤ 0.6
3	Squeezing pressure（MPa）	≤ 1.0
4	Filter temperature (℃)	-10~80
5	Total chamber volume (m3)	5.02
6	Qty of filter/membrane plate (pc)	31/32+1 head+1 tail
7	External size of filter /membrane plate (mm)	1500150080/80
8	Designed depth of chamber（mm）	40
9	Type of filter plate	Chamber membrane
10	Material of filter plate	FRPP+PP elastomer type
11	Hydraulic protection pressure (Mpa)	29
12	Hydraulic pressing pressure (Mpa）	25
13	The effective stroke of the cylinder（mm）	750
14	The diameter of cylinder（mm）	380
15	Inlet hole diameter（mm）	DN125
16	Wash and drain hole diameter (mm)	DN65
17	Material of cylinder sleeve	27 silicon-manganese alloy seamless steel pipe
18	Material of piston rod	Quenched and tempered 45# steel with chrome
19	Material of pressing plate	Welded Q235 constructional steel
20	Material of thrust plate and supporting	Welded Q235 constructional steel
21	Material of cylinder block and supporting	Welded Q235 constructional steel
22	Material of main frame	Solid steel of Q345
23	The length of main frame (mm)	8410
24	Dimensions (LWH) (mm)	974020701900
25	Weight (Kg)	15164

IV.Functional description

Name	Technical description
Auto shifting system	Function: to ensure that shift plate one by one Makeup: hydraulic motor, driving system. Initiative and passivity chains, chains, chain racks, shifter, shifter chain Material of rail: SS 304
Electrical control system	Function: to ensure filter press. oil cylinder, hydraulic system and squeezing system normally and orderly work Makeup: main electrical components are from Schnieder.
PLC control system	Equipped with touch screen, Control the filter press and valves, pumps and other accessories, To achieve full automatic control, easy and safe to operate.
Automatic drip tray	Turn plate motor power :0.55KW The Material of the panel:SS304
Cloth washing system	Function: The cloth washing system, automatically clean filter cloth,makes filtering more efficient and reduces labor. Water washing motor power:4.0KW
Filter cloth	Function: solid-liquid separation Model:750A Max tolerable temperature is above 80℃ Material: polypropylene fiber

V. Filter cloth parameters

Item No.	Material	Fabric Texture	Weight （g/㎡）±5%	Density （PCS/10cm）		Thickness （mm）±2%	Rupture Strength F(N/5*20cm)		Elongation at Break(%)		Air Permeability （L/㎡ S）±25%
				Warp±5%	Across Warp±5%		Warp±2%	Across Warp±2%	Warp	Across Warp
750A	PP	Plain weave	370	204	110	0.75	4166	2905	43	31.83	13.56