China Wholesale Market Agent Sewage Disposal Polymer Flocculation Preparation Chemical Dosing System

China Wholesale Market Agent Sewage Disposal Polymer Flocculation Preparation Chemical Dosing System

Product Item : DLW
Category： Shaftless Screw Conveyor
Certification:CE Certificate
Length: 60-70 meters
Material：Q345B 16Mn ss304 ss316
Conveying angle:no more than 30°
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Shaftless Screw Conveyor Description

Shaftless screws (spirals) offer a larger volume capacity and the possibility of handling particularly difficult materials like those that tend to become tangled up or those that present highly variable particle size. Material properties, oversize thickness, as well as a special manufacturing process make the spiral highly resistant and extremely durable. Due to the absence of intermediate bearings, obstacle-free material handling is guaranteed. The completely enclosed trough prevents any material leakage. Trough covers with appropriate gaskets enable odour-free operation and form a barrier preventing any atmospheric agents from entering the system. At the same time the conveyor offers maximum access to its inside for inspection and cleaning. Maintenance is reduced to the minimum due to a limited number of components. There is a vast choice of liners depending on specific characteristics of the material handled.

Shaftless Screw Conveyor Model

Single shaftless screw conveyor screw shaft, without mixing and stirring functions.

Twin Shaftless Screw Conveyor It adopts double screw blades with mixing and stirring functions. The two screw blades rotate in opposite directions to avoid material blocking. The conveying capacity is 1.5-2 times that of a single shaft.

Inclined Shaftless Screw Conveyor mainly used for conveying materials at a small angle of 25°.

DLS Model	Capacities (m3/h)			Length	Speed	Size
DLS Model	0⁰	15⁰	30⁰	(m)	(r/min)	A(mm)	B(mm)	B0(mm)
DLS200	2	1.4	0.9	10	20	200	310	270
DLS260	3.5	2.5	1.5	10	20	260	370	340
DLS320	9	6.5	4.1	15	20	320	430	400
DLS355	11.5	7.8	5.5	20	20	355	465	435
DLS420	15	11	7.5	20	20	420	530	500
DLS500	30	25	21	20	20	500	560	680

Shaftless Screw Conveyor Benefits

Simple design (few components)
Small footprint
Odor-free operation
High efficiency
Completely empty
Highly self-cleaning
Easy to access and clean
Low maintenance
Modular components can be easily adapted to a variety of problems (multi-purpose conveyor for a variety of difficult materials and high volume applications)

Shaftless Screw Conveyors VS Shafted Screw Conveyors

Conveying materials

Shaftless is suitable for conveying sludge, household garbage, grid slag and other viscous, entangled materials and massive materials. It is precisely because the design of the shaftless screw conveyor without a central axis has great advantages for these materials.
The shaft screw conveyor is suitable for conveying materials: powder, small particle materials, etc. If you convey viscous
materials such as sludge, it will stick to the inner tube shaft and blades, and the conveying block materials are easy to jam.

Conveying form
Shaftless screw conveyor is suitable for: horizontal conveying, and the large inclination angle should not exceed 20°, according to the actual usage.
The shaft screw conveyor is suitable for: horizontal conveying, inclined conveying, and vertical conveying.

Conveying capacity
Due to the use of shaftless, the single-machine conveying length of the shaftless screw conveyor can reach 60 meters, and the conveying capacity is 1.5 times that of the traditional shafted screw conveyor with the same diameter

Shaftless Screw Conveyors Application

Ceramic industry: clay, silica, sand, polishing materials, etc.
Food industry: soybean, peanut, starch, milk powder, salt, sugar, etc.
Plastics industry: plastic powder, plastic particles, etc.
Wood industry:wood chips, wood sawing surface and byproducts, etc.
Environmental: the filter material, fly ash, fixed residue, waste, etc.
Agriculture:livestock feed, food, powder, etc.