Single screw pump

发布时间:2019-06-09浏览次数:20
  • The screw pump can be used to transport neutral or corrosive liquids, clean or abrasive liquids, containing gas or bubble-prone liquids, high or low viscosity liquids, including liquids containing fiber and solid materials, with unique self-sealing, so the inhalation performance is particularly good. It can be used in food industry......

Product overview:

The screw pump can be used to transport neutral or corrosive liquids, clean or abrasion liquids, liquids that contain gas or are prone to bubble formation, high or low viscosity liquids, including liquids that contain fiber and solid substances, with unique self-sealing properties, and thus excellent absorption. It can be used in food industry, textile industry, petroleum industry, chemical industry, shipbuilding industry, construction industry, nuclear industry, metallurgy and mining industry, sewage treatment and other fields.


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Performance range :

1. traffic: 300m3/h

2. pressure difference: 2.4Mpa

3. working temperature: 150℃

4. medium viscosity: 2.7x105cSt


Structural characteristics of:

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Good self-absorption performance, simple structure, economic durability, non - sensitive to impurities, high utilization rate, trouble - prone.

It has unique self-sealing property, so it can absorb well.

The transmission medium has a wide range of viscosity and poor fluidity.

In the transport process, due to the absence of agitation, shear and other phenomena, it is possible to transport materials containing fiber or medium afraid of crystal damage. The flow rate is directly proportional to the speed, especially suitable for the place where the flow rate needs to be adjusted.

The operation and flow direction are reversible, and the installation type is various, which has a wide range of application.

Steady flow and minimum pulsating shear.

It has high efficiency in operation, long service life of rotating parts and small wear. And less parts, easy maintenance and replacement, so that the lowest maintenance costs.

The screw rod can be hardened, can adapt to harsh working conditions and extend the service life of the pump.

Bushing lining has different properties of rubber materials, to achieve the transmission of different media.

The two universal joints are connected with the screw rod and drive shaft to transfer torque. The universal joints are covered by a rubber sheath to ensure internal lubrication.

It can be replaced in different forms (such as mechanical seal, packing seal, etc.).

The elastic stator of the single-screw pump with a special helical cavity meshes with the rotor with large lead length and large tooth height. A continuous sealing line in the stator cavity separates the suction cavity from the pressure cavity. When the rotor rotates, the cavity moves towards the discharge direction continuously, so that the material is continuously pumped and discharged.


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Application area:


The screw pump can be used to transport neutral or corrosive liquids, clean or abrasion liquids, liquids that contain gas or are prone to bubble formation, high or low viscosity liquids, including liquids that contain fiber and solid substances.

Food industry: it is used for the delivery of wine, waste residue and other ingredients in the process of making wine, as well as the delivery of jam, chocolate and other similar materials.

Textile industry: Transfer for synthetic fibre liquid, viscose liquid, dye, printing ink, nylon, powder liquor etc.

Paper-making industry: Transfer for black pulp.

Petroleum industry: Transfer for various oil, multi-phase and polymer.

Chemical industry: Transfer for suspending liquid, emulsion, acid, alkali, salt etc.

Shipbuilding industry: Transfer for residue oil, stripping, sewage and sea water.

Architecture industry: Transfer for mortar and plaster.

Nuclear industry: Transfer for radioactive liquid with solid.

Metallurgic and mine industry: Transfer for oxide and waste water, drainage of mine and liquid explosive.

Sewage treatment: Transfer for various industrial waste water, city sewage and sludge.


Matters needing attention for type selection:

Correct type selection of single-screw pump is the key to better use effect. In order to meet the operation requirements of different physical and chemical characteristics of media, we suggest: the user proposes the pump operation data, and our company's professional staff recommends the type selection, which will be confirmed by the user.

The main operational data necessary for type selection are:

Name of conveying medium, corrosivity, abrasion, viscosity, solid content, working temperature;

Operating parameters flow or flow range, high pressure, continuous or discontinuous operation;

Installation environment horizontal or vertical, fixed or moving, connection pipeline special requirements, explosion protection requirements.


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