Screw Pump

The 1-1B Series thick slurry pump is a single-screw positive displacement pump. The eccentric screw rotates within a spiral bushing, pushing the thick slurry along the spiral groove from the suction port to the discharge port, achieving fluid conveyance.

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Product Introduction

The G Series single-screw pump utilizes a single-headed helical rotor that rotates eccentrically within a double-headed helical stator. A sealed chamber is formed between the rotor and stator. As the rotor rotates, the chamber’s volume changes, continuously pushing the liquid from the suction port to the discharge port, achieving the conveying effect.

This pump is widely used in the chemical, pharmaceutical, brewing, papermaking, and food industries.

Key Features and Advantages

Convey high-concentration

It can convey high-concentration, high-viscosity (up to 1000 Pa·s), and suspended slurries containing particles.

Smooth delivery flow

Smooth delivery flow, without over-flow, pulsation, agitation, or shearing of the slurry. Smooth operation and low noise.

High discharge pressure

Discharge pressure is independent of speed, maintaining high discharge pressure even at low flow rates.

Variable speed

Flow rate is proportional to speed, and can be adjusted using a variable speed mechanism or variable speed motor.

Self-priming performance

Strong self-priming performance, allowing direct pumping without the need for a foot valve.

Reversible

The pump is reversible, changing the direction of flow changes the liquid flow, making it suitable for applications requiring forward and reverse flushing of pipelines.

Parameter Information

L-1B screw pump technical parameters

Model	Flow（m3/h）	Head（m）	Power（Kw)	Import Caliber（mm）	Suction Distance（m）
L-1B1	1.5	50	1.5-6	25	3
L-1B1.5	3.2	80	2.2-6	40	3
L-1B2	5.6	80	3-6	50	3
L-1B2.5	6.5	60	3-6	65	3
L-1B3	12	60	11-6	100	3
L-1B4	16	60	11-6	100	3
L-1B5	19	60	11-6	125	3
L-1B6	24	60	15-6	150	3

G type Screw pump

Model	Speed（t/min）	Flow（m3/h）	Pressure（MPa）	Motor（Kw）	Head（m）	In φ（mm）	Ex φ（mm）
G25-1	960	2	0.6	1.5	60	32	25
G25-2	960	2	1.2	2.2	120	32	25
G30-1	960	5	0.6	2.2	60	50	40
G30-2	960	5	1.2	3.0	120	50	40
G35-1	960	8	0.6	3.0	60	65	50
G35-2	960	8	1.2	4.0	120	65	50
G40-1	960	12	0.6	4.0	60	80	65
G40-2	960	12	1.2	5.5	120	80	65
G50-1	960	20	0.6	5.5	60	100	80
G50-2	960	20	1.2	7.5	120	100	80
G60-1	960	30	0.6	11	60	125	100

Frequently Asked Questions

Our popular products include: vehicle-mounted sludge solidification units, diaphragm filter presses, sludge dewatering machines, as well as engineering design and installation services for municipal sludge and sand-washing sludge treatment.

How to choose the right filter press model based on material properties?

Selecting a filter press model depends on key material properties: particle size (to determine filter cloth mesh), viscosity (affects required pressure), corrosiveness (dictates filter plate material, e.g., PP for mild corrosion, stainless steel for strong), and solid content (influences filtration area and cycle time). High-solids materials need larger filtration areas, while abrasive materials require wear-resistant plates. Match pressure ratings to material viscosity—thicker slurries need higher pressure (1.0–2.5 MPa) for effective dewatering.

What to do if filter plates leak?

First, stop operation and check:

Filter cloths: Replace damaged or misaligned cloths that disrupt sealing.
Filter plate seals: Inspect for cracks, wear, or debris; clean seals or replace plates if damaged.
Pressure imbalance: Ensure uniform pressure across plates (adjust hydraulic system if uneven).
Plate alignment: Realign plates if shifted during operation. Test with low pressure after fixes to confirm leaks are resolved.

Do filter cloths need regular replacement? How often?

Yes, filter cloths require regular replacement as they clog, tear, or degrade over time, reducing filtration efficiency. Frequency depends on material: 4–8 weeks for abrasive/viscous materials (e.g., mining slurries); 3–6 months for less harsh materials (e.g., food-grade liquids). Signs to replace early: slower filtration, increased pressure, or visible damage (holes, fraying).

Is installation and operation training provided after purchase?

We offer installation and operation training post-purchase. This typically includes on-site installation guidance, hands-on operation training (e.g., setting parameters, troubleshooting), and documentation (manuals, video tutorials). Some provide follow-up support for 1–3 months to ensure operators master key functions, especially for automated or custom models.

If the power supply is not the issue, how to fix the machine tripping and shutting down?

Check these common causes:

Overload: Motor may be overworked (e.g., excessive slurry feed); reduce load or inspect for jammed components (e.g., filter plate movement).
Faulty sensors: Pressure or temperature sensors may trigger safety shutdowns; calibrate or replace malfunctioning sensors.
Hydraulic system issues: Low oil level or clogged filters can cause pressure spikes; check fluid levels and clean/replace filters.
Electrical connections: Loose wires in control panels may interrupt power; tighten connections and inspect for short circuits.