Why is a static batching machine more suitable for blended fertilizers

Static batching machines are more suitable for blending fertilizers, mainly due to their core advantages such as high precision, low loss, strong adaptability and easy maintenance. They are especially suitable for the production of blending fertilizers with multiple varieties, large quantities and strict proportioning requirements. The following is the specific analysis of Zhengzhou Hanke Machinery:

I. Core Advantages of Static Batching Machines

High-precision proportioning control

Independent weighing system: The static batching machine adopts a "one bin, one scale" design, with each type of material being weighed independently to avoid cumulative errors caused by differences in material flow rates during dynamic batching.

When producing compound fertilizers containing nitrogen, phosphorus and potassium, static batching machines can ensure that the proportioning error of urea, monoammonium phosphate and potassium chloride is ≤0.5%, while the error of dynamic machines may reach 1%-2%.

Data traceability function: Supports formula storage and production records, meeting the requirements for traceability of proportioning in agricultural blended fertilizers (GB 21633-2020).

Reduce material loss and cross-contamination

Closed design: The static batching machine controls the falling of materials through pneumatic gates or screw conveyors, reducing dust flying and material residue.

Comparison: Due to continuous conveying, dynamic batching machines are prone to material residue in the belt or screw gaps, leading to cross-contamination during material changes.

Trace additive treatment: Small-capacity silos (such as 0.5-1m³) can be equipped to precisely add trace elements like boron and zinc, avoiding waste.

Adapt to a wide variety of materials

Flexible silo configuration: Supports 2 to 8 silos or even more, meeting the demand of "one material, one silo" for blended fertilizers.

When producing blended fertilizers containing organic matter and microbial agents, the static batching machine can be separately set up with organic fertilizer bins and microbial agent bins to prevent the inactivation of active ingredients.

Material compatibility: It can handle various forms of materials such as powder, granules, and crystals without adjusting equipment parameters.

Low maintenance cost

Simple structure: The static batching machine has no complex transmission components (such as belts and chains of dynamic machines), reducing the failure rate by more than 30%.

Ii. Comparison with Dynamic Batching Machines

Compare the static batching machine and the dynamic batching machine

Proportioning accuracy ≤0.5%(independent weighing) 1%-2%(cumulative error)

Low material loss (in closed conveying) and high (belt residue, dust)

The equipment cost is medium (20,000-300,000 yuan) and low (10,000-100,000 yuan).

Low maintenance difficulty (modular design) and high (many transmission components)

Applicable scenarios: multi-variety, high-precision blended fertilizer, single-variety, large-scale continuous production

Iii. Typical Applications of Static Batching Machines in Blended Fertilizer Production

Production of BB fertilizer (blended fertilizer)

Requirement: Urea, monoammonium phosphate, potassium fertilizer, etc. need to be mixed in proportion, and the proportion error must comply with national standards.

Solution: Use a 4-6 bin static batching machine, with each bin weighing independently. After mixing, package directly to avoid stratification caused by secondary mixing.

Organic-inorganic blended fertilizer

Requirement: It is necessary to mix livestock and poultry manure (such as pig manure) with chemical fertilizers in proportion, and add microbial agents at the same time.

Solution: Use a 6-8 bin static batching machine, setting up organic fertilizer bins, chemical fertilizer bins, and microbial agent bins. Control the feeding sequence through PLC to prevent the inactivation of microbial agents.

Production of special fertilizers

Demand: Produce blended fertilizers containing trace elements (such as boron and zinc) or slow-release components.

Solution: Adopt a static batching machine with more than 8 compartments, equipped with a micro-additive compartment, and achieve 0.1% level proportioning control through high-precision sensors.

Iv. Suggestions for Selecting Static Batching Machines

Select the number of warehouses based on the production scale

Small-scale production lines (5-50 tons per day) : 2-4 warehouse models, with a starting cost of approximately 20,000 yuan.

Large-scale production lines (daily output of over 200 tons) : 6-8 warehouse models, supporting automated production lines.

Pay attention to the supporting functions of the static batching machine

Automation control: Select the PLC+ touch screen operation model to reduce manual intervention.

Anti-clogging design: For sticky materials (such as wet-based organic fertilizers), choose a silo with a vibrator.