GVD40 | GVD175 rotary-vane vacuum pump are used - in the extruder

extruder is currently the most commonly used in brick and tile industry brick making equipment. With the advent of the era of mechanization, in order to improve the level of production of brick and tile industry equipment, in order to satisfy the demands of the development of the society, the new rig equipment using vacuum extrusion principle to improve the production efficiency of the equipment. Equipment production efficiency have improved the strength of the brick and density. Vacuum extruder nature and GVD40 rotary-vane vacuum pump are inseparable. This paper involves an extrusion device, especially a device used in vacuum extruder extrusion. From GVD40 rotary-vane vacuum pump application in the extruder is introduced, we can learn what?

GVD175 rotary-vane vacuum pump application in the extruder

1) extruder degassing

in the machining process, thermoplastic plastic melt in the extrusion machine, and in the extruder screw thread section of degassing. Rotary vane vacuum pump for gas and vapor composition extracted from the melt. Extract all low molecular substances in order to get the best quality of thermoplastic, with smooth appearance, higher strength, better insulation performance and lower gas velocity.

(2) forming machine

to melt in the extrusion machine and degassing of the plastic material into the set on the stage of continuous contour. Usually, these parts in the tube, or in various technical sections, such as Windows, luggage or medical tube. The plastic material into the mold. For cooling and lubrication, inside the mold and the water film formed between continuous artifacts, and stable by NASH vacuum water pump to remove air.

(3) pneumatic conveying device

at all stages of production, plastic ball material must be transferred from one location to another location ( For example, moving from storage tank to the drying machine) 。 It can be realized through pneumatic conveying device automatically, and can accelerate the speed. Pipe extends from beginning to end, and connect to the vacuum pump or compressor.

4 vinyl chloride extraction and compression

in the process of production of PVC, vinyl chloride gas in autoclave under the pressure of the formation of polymerization of PVC polymerization. At the same time, the gas is produced by extraction, compressed and liquefied.

by adding a blade to smash the mud, and can improve the vacuum degree of mud, prevent the product cracking, and improved the product quality and production.

GVD175 rotary-vane vacuum water pump operation requirements of

1. Check the vacuum brick machine and rotary vane vacuum pump in good condition, and according to the requirements of product instruction manual to the gear reducer, rotary vane vacuum pumps and equipment of each lubrication point add appropriate lubricant or grease.

2。 Before you start, the integrity of the rotary-vane vacuum pump to check its parts and tightness. In addition to the routine check, you must first turn the handwheel by hand, to see if there is a paper jam and abnormal sound.

3。 Used for the first time, empty machine should be the normal operation of 1 ~ 2 h, and then into the mud run 1 ~ 2 h. If there is no exception, can run into production.

4。 Usually, usually open the rotary-vane vacuum pump with water first, and then start the rotary-vane vacuum pump drive motor, finally start extruder driven motor. When to stop, on the contrary sequence. Open cooling water, the water from the outlet of the machine, and then close the inlet valve, with empty to start the machine. Can reach the normal speed, slowly open the inlet valve, in order to avoid losing lubricating vacuum pressure is too low.

only constant mechanical vacuum pump factory main products are 2 bv, V, VG, VI, VZ,. vn, LRP series water ring vacuum pump, X, GVD8 GVD18, GVD28, GVD40, GVD175, GVD275 series rotary vane vacuum water pump, what ZJ had roots vacuum pump series, GXS, DHS, VSD, GHS series screw vacuum pump, DZS series claw pump, the central vacuum system, etc. The company acting with atlas. Manufacturing ( 阿特拉斯) , times g speck products. Constant to mechanical and electrical vacuum pump manufacturer with many years of production experience, first-class technical staff, perfect after-sales channels to make the product quality stable and reliable for many years. Constant to mechanical and electrical manufacturers expect to cooperate with every colleague, more knowledge of vacuum pump please continue to pay attention to our constant mechanical and electrical equipment co. , LTD. Contact phone number - 400 8625533, mobile phone 13928410990.

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