01Silo Feeding and Distribution
Distributing bulk product to several silos or collecting it from silos, above or below the silo row. Multiple discharge gates can be selected with slide gates.
Storage and Feeding SystemsChain Conveyor – Enclosed Drag Chain Conveyor for Bulk Materials
PRO MAKINA · Enclosed Drag Chain Conveyor
- Task
- Enclosed bulk material transfer
- Conveying element
- Chain with flights (scrapers)
- Route
- Horizontal or suitably inclined
- Outlets
- Single or multiple discharge gates
Overview
Controlled Bulk Transfer in an Enclosed Casing
A chain conveyor moves bulk material inside an enclosed casing, dragged along by flights (scrapers) attached to the chain. The material travels as a bed along the casing floor; the chain runs between the drive sprocket at the head and the take-up sprocket at the tail.
Unlike a belt conveyor, the material does not ride on an open belt but moves within a closed trough. This makes dust sealing easier with dusty products and allows several discharge gates along the line.
Capacity is determined by casing cross-section, chain speed and bulk density. Chain type, flight material and casing wear surfaces are selected according to the abrasiveness and flow behaviour of the material.
01Process Flow
Chain Conveyor Material Flow
The diagram shows the typical flow in which the chain conveyor carries material from the inlet to the discharge gate inside the enclosed casing.
Scroll horizontally to view the full diagram.
Material line
- 1
Material feeding: Material enters the inlet from a hopper, silo or upstream equipment.
- 2
Transport in the casing: Flights on the chain drag the material along the casing floor.
- 3
Discharge: Material leaves through the selected discharge gate.
- 4
Chain return: The empty chain returns in the upper part of the casing to the tail sprocket.
Where the line has several discharge gates, the selected gate is opened to direct material to different silos or bins.
02Applications
Chain Conveyor Applications
01
02Powders and Fine Products
Transporting fine, dust-prone products in an enclosed casing. Casing sealing and inspection covers are designed for the product.
Chemical Process Industry
03Biomass and Wood Chips
Conveying wood chips and similar light, fibrous bulk materials to process equipment. Flight geometry and casing section are chosen for the material flow.
Recycling and Waste Management
03Design & Manufacturing
Custom Chain Conveyor Design and Manufacturing
PRO MAKINA engineers chain conveyors around the material, capacity and route. Casing, chain and flights, drive and take-up units, inlets, discharge gates and inspection covers are designed together.
- Chain and flights matched to material
- Enclosed, sealed casing
- Drive and take-up sprockets
- Multiple discharge gate option
Process Design Data
- 01
Material
Material type, particle size, bulk density, moisture and abrasiveness.
- 02
Capacity
Hourly conveying capacity and operating hours.
- 03
Route
Conveyor length, inclination and position of inlets and outlets.
- 04
Chain and Casing
Chain type, flight material, casing section and wear surfaces.
- 05
Drive and Take-up
Gear motor, sprockets, take-up arrangement and maintenance access.
Chain speed and drive power are calculated from material and capacity data; suitability for hot or abrasive products is assessed separately for each project.
04Gallery
Chain Conveyor Photo Gallery
05FAQ
Chain Conveyor FAQ
What is the difference between a chain conveyor and a belt conveyor?
On a belt conveyor material rides on an open belt. In a chain conveyor it is dragged by flights on a chain inside an enclosed casing, which makes dust control and multiple discharge points easier.
Can a chain conveyor run inclined?
Inclined lines can be designed for suitable materials. The angle depends on the flow behaviour of the material and the casing design.
Can material be discharged at several points?
Yes. Several discharge gates can be provided along the line, and slide gates select where the material is discharged.
Which parts wear?
Chain, flights, sprockets and the casing floor are wear parts. Wear liner material and take-up arrangement are selected according to how abrasive the product is.
What information is needed for a quotation?
Material type, particle size, bulk density, product temperature, hourly capacity, conveyor length and inclination, and the inlet and discharge points.
06Resources
Related Machines and Plants
Bucket ElevatorVertical bulk transport with a chain bucket elevator.Screw ConveyorEnclosed screw transport and feeding of powders and granules.Belt ConveyorHorizontal or inclined transport of bulk material on a belt.Bunkers & HoppersBuffer volume and steady discharge ahead of feeding.
Related machine groups:Silos & Feeding SystemsDust Collection SystemsDosing SystemsScreening Systems
Technical Quotation
Request a technical quotation for a chain conveyor
Share your material, capacity and route, and we will define the chain conveyor and its discharge points together with you.
Information Needed for a Technical Quotation
- Material type and particle size
- Bulk density and product temperature
- Hourly capacity (t/h)
- Conveyor length and inclination
- Inlet and discharge points
- Dust sealing requirement