Non-woven special equipment accessories
Non-woven fabric is a new type of modern material. It has a wide range of uses and can play more roles in clothing, agriculture and industry. The production of non-woven fabrics is also mostly mechanized, which makes it possible to produce a large number of non-woven fabrics in batches. Non-woven fabric winders are one of its equipment.
Non-woven fabric, also called non-woven fabric, is composed of oriented or random fibers. The production of non-woven fabrics often uses polypropylene pellets as raw materials, and is produced by a continuous one-step method of high-temperature melting, spinning, laying, and hot-pressing. In the production of non-woven fabrics, the raw materials need to be spun and formed and then processed. In the web-forming work, a non-woven web forming machine needs to be used. The web forming machine uses wind in the drafting duct to process the silk. After drafting, a machine for non-directional weaving into a net is carried out. However, polypropylene pellets are prone to broken filaments and stiff blocks during drawing, drafting, and web formation. Therefore, in order to improve the quality of the finished non-woven fabric, it is necessary to clean the formed non-woven fabric. When dealing with broken wires and stiff blocks in traditional web forming machines, workers usually use brushes or scouring pads behind the web forming machines to clean up. Because the belt width of the web forming machines is relatively long, and the conveyor belt speed is relatively high at the same time. Fast, the cleaning range that workers can cover is limited, resulting in low cleaning efficiency, which in turn affects the quality of the finished non-woven fabric.
The slitting machine is mainly used to cut large-format non-woven fabrics into multiple small non-woven fabrics of different widths for processing non-woven products. The equipment adopts DC speed regulation, feeding constant tension control, air knife slitting, rewinding pressure and other devices. The rewinding tightness after slitting is adjustable, and the slitting end surface is flat. The equipment is of high quality and beautiful appearance. It is the ideal equipment for the slitting of large non-woven fabrics. In addition, according to the needs of users, the equipment can also add a dummy cutting function, that is, the original fabric is dummy cut and then slit and rewinded.
Non-woven fabric machinery is a general term for the production of non-woven fabric products, and adopts an overall modular design with a compact and reasonable structure. The control part adopts advanced PLC microcomputer control, and the international famous brand frequency converter speed regulation.
Melt blown mold head, Cross forming machine, slitting machine, Non woven fabric winding machine, non-woven high-speed winding machine, non-woven high-speed web forming machine, Netting machine, polyester non-woven fabric sizing and drying equipment Changzhou Puyisen Machinery Technology Co., Ltd. , https://www.czsmmsmachine.com
Greentech International (Zhangqiu) Co., Ltd is the professional vacuum pump supplier.
2BV series water ring vacuum pumps are suitable for pumping the gases and steam. Its suction pressure can reach 33mbar (ABS) (i. e. 97 % vacuum degree). If the transformer oil is used as the operating liquid, these pumps are called oil ring vacuum pump and the suction pressure can reach 6.7mbar (ABS) (i. e. 99 % vacuum degree). So the oil ring vacuum pumps can replace the reciprocated vacuum pumps completely. When the liquid ring vacuum pumps work under the condition near the limited vacuum for a long time, it is necessary to couple with the cavitation protection pipe in order to get rid of the screaming and protect the pump.
When the compressor is working, the maximum pressure is 0.26MPa (ABS). And the higher of discharge pressure, the larger of the power of the compressors. So it is necessary that the data of the discharge pressure is provided to choose the proper motor.
2BV2-Ex, 2BV6 series water ring vacuum pumps and compressors are mainly used for pumping the explosive gases or work in the flammable and explosive environment. The technical parameter of each type is the same as the corresponding type of the 2BV2 or 2BV5 series products.
2BV series stainless steel pumps can be used under the conditions with higher requirements for the corrosive-proof or the lustration.
According to the working situation, the material of all the parts where the liquid flows (i. e. Pump casing, pump cover, port plate, and impeller)are made of various stainless steel as bellow:
SUS304 (0Cr18Ni9), SUS316 (0Cr17Ni12Mo2), SUS316L (00Cr17Ni14Mo2)
The material of the shaft is 2Cr13 or 0Cr18Ni12Mo2Ti
The mechanical seals are used the John Crane products and the seals material is optional for FPM or PTFE.
2BV series products possess the characteristics as bellow
· The close-coupled design is convenient to install and can save space.
· The standard seals are all used the John Crane mechanical seals.
· 2BV series products have the cavitation protection port. When they work under the condition near the limited vacuum, the cavitation protect port opens (or connects with the separator)to get rid of the screaming to protect the pump.
· Aluminum bronze impeller is of high intensity and wearing well. The erosive-proof capacity of the pump can be improved by using it. If the parts where the liquid flows are made of the stainless steel, the pumps can be used under the more rigorous condition.
· The unique design of the discharge port can protect the pump from the over-pressure to ensure the best efficient performance in the working range of the pump.
· The motors are all adopted Y2 series products. The protection class is IP54 or IP55 (normal is IP44) and the insulation grade is F.
· The bearings are all used the imported products with brand name of NTN or NSK.
Type
Suction capacity
m 3 /minLimited vacuum
mbar(MPa)Motor power
kWExplosive-proof grade of motor
Protection grade of motor
Pump Speed
r.p.mLiquid flowrate
L/minNoise
dB(A)Weight
kg
2BV2 060
0.45
33mbar
(-0.098MPa)1.1
No
IP542880
2
62
31
2BV2 061
0.86
1.5
2880
2
65
35
2BV2 070
1.33
3
2850
2.5
66
56
2BV2 071
1.83
4
2860
4.2
72
65
2BV2 060-Ex
0.45
1.1
dIIBT4
IP552880
2
62
39
2BV2 061-Ex
0.86
1.5
2880
2
65
45
2BV2 070-Ex
1.33
3
2850
2.5
66
66
2BV2 071-Ex
1.83
4
2860
4.2
72
77
2BV5 110
2.75
4
No
IP541450
6.7
63
103
2BV5 111
3.83
5.5
1450
8.3
68
117
2BV5 121
4.66
7.5
1450
10
69
149
2BV5 131
6.66
11
1430
15
73
205
2BV5 161
8.33
15
970
20
74
331
2BV6 110
2.75
4
dIIBT4
IP551450
6.7
63
153
2BV6 111
3.83
5.5
1450
8.3
68
208
2BV6 121
4.66
7.5
1450
10
69
240
2BV6 131
6.66
11
1430
15
73
320
2BV6 161
8.33
15
970
20
74
446