Vertical Screw Conveyor-DAHAN Vibration Machinery

Introduction of Vertical Screw Conveyor

Vertical screw conveyor is a continuous conveying equipment that utilizes the forced feeding screw to rotate and convey materials. It is suitable for conveying powdery, granular and non-sticky materials vertically or at a large angle. It can lift/load powder or granules to a certain height. Inside the hopper or silo, with a vertical height of up to 8 meters, the small footprint allows it to fit into almost any plant layout.

Vertical screw conveyor is used to convey materials vertically

The forced feeding of the vertical screw conveyor adopts a circuitous feeding type. The feeding port of this form is connected with the casing of the vertical screw conveyor at 90°, which is suitable for materials with poor fluidity. In terms of the arrangement of the driving device, there are generally two types of arrangements: top drive, which is suitable for occasions with low conveying height, which occupies a small area, and bottom drive, which is suitable for occasions with high conveying height, which occupies a large area.

Types of Vertical Screw Conveyor

1. Different materials

Different materials

Carbon Steel Vertical Screw Conveyor: Mainly used in cement, coal, stone and other industries with large wear and no special requirements for hygiene.

Stainless steel vertical screw conveyor: suitable for industries such as grain, chemical industry, food and other industries that have requirements on the conveying environment, high cleanliness, no pollution to materials, long use time, and relatively high cost.

2. According to the driving method

Different driving method

Single motor drive: When the motor power is less than or equal to 15Kw, the single drive type is adopted.

Dual motor drive: When the motor power is greater than 15Kw, the dual drive type is adopted.

Working Priciple of Vertical Screw Conveyor

The product rotates with the screw at high speed, and the material to be conveyed is added from the feed port of the horizontal part, and is fed into the conveyor and the vertical part by the rotating horizontal feed screw, and then the material is pushed up to the discharge port by the vertical screw, The material rotates at a high speed with the screw, and the material to be conveyed is added from the feed port of the horizontal part, enters the conveyor through the rotating horizontal feed screw, and then pushes the material to the discharge port by the vertical screw to be discharged.

Benefits of Vertical Screw Conveyor

Vertical screw conveyors offer many advantages over other options:

Lifting height up to 8 meters

For transporting product in tall rooms or small silos (up to 8m height difference), when increased lift height is required, intermediate hangers or stabilizer bearings are often required to eliminate excessive helical deflection and "whipping".

Available in many configurations

The inlet section can be biased to either side or in series, requiring a horizontal infeed conveyor to precisely meter bulk material directly to the inlet of a vertical conveyor for maximum efficiency.

Uniform feeding, no blockage

High-power vibration motor (3.5kw-11kw), high speed (60-140 rpm/min), to ensure fast and even delivery.

Lowest number of spare parts

Possibility to reduce or expand installed screw feeders due to the interchangeability of our parts.

Sealing system

The material entry is carried out entirely through the independent back flow of the material in the closed pipeline, which meets the dustproof requirements and fully improves the conveying environment.

Small footprint

Compared to bucket elevators or pneumatic conveying systems, vertical screw conveyors have the most compact overall dimensions and are suitable for almost any plant layout.

Structure of Vertical Screw Conveyor

The vertical screw conveyor is composed of horizontal screw conveyor and vertical screw conveyor.

Driving device: adopt the upper driving form. The motor is installed on the head of the main machine, and the power is transmitted to the main shaft through the belt, so as to drive the screw to run. When the motor power is less than or equal to 15Kw, single drive is used, and when the motor power is greater than 15Kw, double drive is used.

Spiral: According to the different materials conveyed by the vertical screw conveyor, the surface type of the spiral blade has a solid surface type, a belt type surface type, and a blade surface type.

Bearing: There is a thrust bearing at the end of the screw shaft in the direction of material movement to give the screw axial reaction force along with the material. When the machine length is long, an intermediate suspension bearing should be added.

Feed trough: The trough is made of carbon steel and stainless steel, but it is usually made of thin steel plate with a thickness of 2 to 4mm. The two sides of the cross section are vertical and the bottom is semicircular.

The feeding of the vertical screw conveyor must maintain the necessary feeding force. When the feeding height difference is small, the vertical screw conveyor is equipped with a horizontal feeding screw. Generally, the horizontal feeding screw and the vertical conveying screw are made into a whole. The diameter of the horizontal feeding screw is the same as that of the vertical feeding screw, and the rotation speed of the horizontal feeding screw is lower than that of the vertical feeding screw.

Technical Parameters of Vertical Screw Conveyor

Specification		LC160	LC200	LC250	LC315
Diameter(mm)		160	200	250	315
Rotating Speed(r/min)		450	450	415	380
Capacity(m3/h)		10	28.5	51	95
Conveying Height(m)		2.5～15	2.5～15	2.5～15	2.5～15
Motor	Height(m)	2.5～5.5	2.5～5.5	2.5～4	2.5～4
	Model	Y100L2-4	Y100L2-4	Y132M1-6	Y160M-6
	Power	3KW	3KW	4KW	7.5KW
	Height(m)	6～7	6～7	4.5～5.6	4.5～6
	Model	Y112M-4	Y112M-4	Y132M2-6	Y160L-6
	Power	4KW	4KW	5.5KW	11KW
	Height(m)	7.5～10	7.5～10	6～7.5	6.5～8
	Model	Y132S-4	Y132S-4	Y160L-6	Y160L-6
	Power	5.5KW	5.5KW	7.5KW	15KW
	Height(m)	10.5～13.5	10.5～13.5	8～11	8.5～12
	Model	Y132S-4	Y132M-4	Y160L-6	Y180L-6
	Power	7.5KW	7.5KW	11KW	11KW2台
	Height(m)	14～15	14～15	11.5～15	12.5～15
	Model	Y160M-4	Y160M-4	Y180L-6	Y180L-6
	Power	11KW	11KW	15KW	15KW2台

Dimensions of Vertical Screw Conveyor

structure of vertical screw conveyor

VERTICAL SCREW CONVEYORS - DIMENSION TABLE
	Ø C
	114	139	168	193	219	273	323
A	150	170	185	200	235	260
L	Variable on demand		Variable on demand			Variable on demand
L	min.800		min.1500			min.2000
M	330	330	460	460	520	520	670
E	120	130	160	175	190	215	240
F	150	150	200	200	200	200	200
G	350	350	440	440	500	550	550
H	Variable on demand
W	215	215	285	285	355	355	355
U x V	155x90	155x90	205x125	205x125	205x160	205x160	255x200
T	Variable, max. 1040		Variable, max. 1390			Variable, max. 1600
Z	Variable, max. 515		Variable, max. 690			Variable, max. 890

Vertical Screw Conveyor Design Calculation

Screw Diameter (Inches)	Capacity (Cubic Feet per Hour)	Recommended Horizontal Feeder
6	400	179
9	1,300	162
12	3,000	160
16	6,000	127

1. Length combination: The height of the vertical screw conveyor (ordering height) refers to the distance between the feeding port and the discharging port.

2. Driving device: the upper driving type is adopted. The motor is installed on the head of the main machine, and the power is transmitted to the main shaft through the belt, thereby driving the screw to run.

Type 200 and Type 250 are provided with a single drive type, and the maximum configuration motor power is 15Kw; Type 315 is provided with two types of single drive and double drive. The forced feeding device is equipped with a driving device installed on the ground, which should be designed by the manufacturer. If the user designs it, the user is responsible for it.

The formula for calculating the delivery volume:

Q=8.007•D•3n (m3/n) In the formula: Q=delivery amount (m3/n); D=screw diameter (m); n=screw speed (r/min).

Motor power calculation formula: N=0.015258856Q•r•H (Kw) where: N=motor power (Kw); Q=conveying volume (m3/n); r=material bulk density (t/m3); H=feed The distance (m ) between the material port and the material outlet.

Vertical Screw Conveyor Capacity＆Horsepower Calculation

Capacity, Sizing, and Speed Table
Vertical Screw Conveyor Diameter (Inches)	Maximum Recommended Capacity (Cubic Feet per Hour)	Recommended Speed Range (RPM)
6	400	200-215
9	1300	200-215
12	3000	165-180
16	6000	135-150

Application of Vertical Screw Conveyor

Vertical screw conveyors are an efficient way to lift a wide variety of bulk materials from steep slopes to full vertical, ideal for handling dry to semi-fluid materials ranging from free-flowing to slightly sluggish, requiring horizontal infeed conveyors to accurately meter bulk materials directly to the vertical Conveyor inlet for maximum efficiency, offering a compact design so it does not take up a lot of floor space, suitable for most plant layouts.

Vertical screw conveyors are used to transport materials up a vertical path

Proof of Solutions for Our Wide Range of Products

Customer case

materials	Lifting height（meters）	Conveying capacity (t/h)	model
Sand	6	6	LC273
Iron oxide	7	1	LC219
coffee powder	4	1	LC159
Soybeans	5	5	LC160
Aluminum block	4	1	LC245
salt	1.5	5	LC219
catalyst	4	10	LC315

Vertical Screw Conveyor Manufacturer

Dahan Machinery has 12 years of experience in the production of vertical screw conveyors. The specifications of this product are (with shaft, without shaft), and the material of the shell blade: carbon steel, stainless steel. According to the particle size, conveying volume and conveying distance of the conveyed material, reasonable selection and design can be made to achieve no jamming, no arching, smooth discharge, complete models, stock supply, free selection and drawing design, and 12 months Quality warranty and lifetime maintenance services, products have been exported to the United States, Russia, Sri Lanka, Indonesia, Malaysia, the Philippines and other countries and regions.

Vertical screw conveyor manufacturer

The manufacturer selects and designs according to the parameters you provide. We have 15 years of experience in design and production, and the product quality is good.

1. If you are replacing, you need to provide flange (round or square), flange (outer diameter, inner diameter, flange hole center distance), inlet and outlet distance, if it is a new installation, you can ignore these parameters, when you install Just do it to our size.

2. It is necessary to provide some parameters such as installation conditions, material name, material particle size, whether the material has hardness, whether the material has viscosity, material temperature, import and export distance, and the conveying volume you need. you need.

Vertical Screw Conveyor