How to choose a chain type mesh belt dryer

Chain type mesh belt dryer is a commonly used equipment in industries such as food processing, chemical industry, agricultural product dehydration, and medicinal material drying

Backup is highly favored for its efficiency, continuous operation capability, and stability. But for first-time buyers or enterprises that need to upgrade their equipment, how to choose a chain type mesh belt dryer that suits their own needs? Jinlu Machinery will explain to you from the following aspects:

1、 Clear requirements: match industry and production scale

Before making a purchase, it is necessary to clarify the following points:

① Material characteristics

The material form (particle, sheet, block), moisture content, temperature resistance, adhesion, etc. directly affect the drying efficiency. Example: Fruits and vegetables require low-temperature slow drying, chemical powders require anti-static design, and high sugar materials require anti stick mesh belts.

② Capacity requirements

Select equipment size (such as mesh belt width 1-3 meters, length 10-30 meters) and number of layers (single or multiple layers) based on daily processing capacity. Export enterprises need to pay attention to the voltage standards (such as 220V/380V/440V) and production line space limitations of the target country.

③ Heat source adaptability

Electric heating: suitable for areas with sufficient electricity, precise temperature control, but high energy consumption.

Gas/Steam: Suitable for large-scale continuous production, local energy costs and supply stability need to be evaluated.

Heat pump type: energy-saving and environmentally friendly, but with high initial investment, suitable for energy sensitive areas.

2、 Core component selection: Quality determines lifespan

① Mesh belt material and structure

The mesh surface is made of 304 stainless steel material (corrosion-resistant), and industrial grade carbon steel can be galvanized (low-cost).

The mesh density should be customized according to the size of the material to avoid material leakage or blockage.

The chain drive system needs to withstand high temperatures (recommended alloy steel material), and the pitch design affects the smoothness of operation.

② Temperature control system

Partition temperature control technology (3-5 temperature zones) can adapt to the needs of different drying stages.

PID intelligent temperature control with an error of ± 2 ℃, coupled with a humidity sensor, can avoid excessive drying.

③ Hot air circulation design

Vertical air supply (good uniformity) vs horizontal air supply (low energy consumption), the choice should be based on the characteristics of the material.

The waste heat recovery system can reduce energy consumption by 20% -30% and save costs in the long run.

3、 Verification of key performance indicators

① Energy Efficiency Ratio (COP)

The energy efficiency ratio of a heat pump dryer should be greater than 3.5, and the thermal energy utilization rate of traditional electric heating equipment should be ≥ 80%.

② Operational stability

The testing equipment runs continuously for 72 hours without any faults, and the deviation error of the mesh belt is less than 5mm.

The precision of motor brands (such as Siemens, ABB) and reducers affects long-term stability.

③ Security certification

Exporting to the EU requires CE certification (including Machinery Directive and Low Voltage Directive), while the food industry requires FDA or ISO22000 certification. Explosion proof design (ATEX) is suitable for chemical and dust environments.

4、 After sales service and customization capability

① Supplier Qualification

Priority should be given to manufacturers with export experience (such as cases in Southeast Asia, the Middle East, Africa, etc.), familiar with customs clearance and local regulations.

② Accessories supply and technical support

Ensure that vulnerable parts (chains, bearings, filters) are globally replaceable and provide multilingual operation manuals.

Remote diagnostic systems can reduce downtime for overseas customers.

③ Customized services

Special requirements such as acid resistant coatings, modular disassembly (for easy container transportation), and multi fuel compatible designs need to be communicated in advance.