2026-11-12
Process flow
A 20,000 t/yr line runs at about 2.5–3.5 t/h. The full process is:
- Collect raw material.
- Add a composting inoculant and compost.
- Semi-finished compost.
- Crush.
- Screen.
- Premix.
- Granulate.
- Dry.
- Cool.
- Screen.
- Pack.
Trough or windrow layout
Renyuan plans 20,000 t/yr plants either around composting troughs or around ground windrows.
- Trough composting: two walls built on level ground form each trough. Troughs are usually 4–10 m wide and 60–80 m long. Raw material can be pre-mixed with bulking material and inoculant using a windrow turner, or loaded straight into the trough and mixed there.
- Windrow composting: material is piled in long rows on a hardened yard and turned by a self-propelled crawler turner.
After composting, the material goes on to crushing, screening, granulation and packing.
Granular line: reference equipment list
From Renyuan's published 20,000 t/yr granular configuration. Belt conveyors (B600) link each stage.
| Equipment | Reference specification | Power |
|---|---|---|
| Trough compost turner (RY-ZFP-50 type) | Working speed 60 m/h; PLC control, remote operation, hydraulic rotor lift, automatic return | 27.2 kW |
| Automatic feeding hopper | 2.2 × 2.2 m, about 5.2 m³, vibrating feed | 2.2 kW |
| Vertical crusher | Rotor 1,800 rpm, multi-layer blades | 45 kW |
| Trommel screen | 4.0 × 1.5 m, 24 r/min, with rapper | 4 kW |
| Extrusion granulator | 2–5 t/h | 55 kW |
| Grading screen | 1.5 × 4.0 m, 5–8 t/h | 4 kW |
| Dual-scale granule packer | 10–15 t/h, with bin | 4 kW |
| Recycle crusher | Ø600 mm, 1,450 rpm | 18.5 kW |
| Powder packer | 200–400 bags/h, 20–50 kg bags | 2.2 kW |
Powder line: reference equipment list
| Equipment | Reference specification | Power |
|---|---|---|
| Trough turner with transfer trolley | Working speed 60 m/h; PLC control, remote operation, hydraulic rotor lift, automatic return, epoxy anti-corrosion paint | 27.2 kW |
| Automatic feeding hopper (×2) | 2.2 × 2.2 m, 4.3 m³, 6–8 t/h, vibrating feed | 1.0 kW each |
| Vertical crusher | Rotor 1,800 rpm, 8–10 t/h | 15 kW |
| Trommel screen | 1.1 × 3.0 m, 24 r/min, 2–3 t/h | 3.0 kW |
| Automatic packer | 200–300 bags/h, 20–50 kg bags, digital weighing, bag sewing | 2 kW |
| Belt conveyors | B600 patterned belt | 2.2–4.4 kW |
Current Renyuan models for each stage
The reference lists above use the model names in Renyuan's published layout. When you configure a plant today, each stage maps to a current catalogue model, linked below: RY-ZFP trough turners, RY-LC automatic feeding hoppers, RY-FS60 vertical crusher, RY-GS trommel screen, RYZL extrusion granulators (2.0–6 t/h for RYZL-55) and automatic packers.
Renyuan equipment for this line
- RY-ZFP Standard Trough Compost Turner
The standard RY-ZFP series turns and mixes organic material in fixed composting troughs. The 40/50 and A/B combinations have different widths, working depths and main motor ratings, so selection begins with the trough geometry.
- RY-LC Automatic Feeding Hopper
RY-LC hoppers buffer organic fertilizer material and feed the next process stage. Four RY-LCS sizes have individual footprint, volume and motor data; select for feeding rhythm and material flow.
- RY-FS60 Vertical Crusher
A vertical crusher for reducing fermented organic material before screening or further processing.
- RY-GS Trommel Screen
The trommel screen grades fertilizer material through a rotating screen. Use it after crushing for powder processing or in granule finishing, with apertures and recycle routes matched to the finished-product size.
- RYZL Extrusion Granulator Series
A dry extrusion granulator series listed in RYZL-37, RYZL-55 and RYZL-75 configurations.
- Dual-Scale Belt-Fed Automatic Weighing and Packing Machine
Two alternating weighing systems and belt feeding for mixed, powder-containing, flake or lump materials.
- Granular Organic Fertilizer Production Line
Produce organic fertilizer granules from prepared, composted ingredients. Mixing, granulation, drying, cooling, screening and bagging are arranged around the formulation and target granule.
- Powder Organic Fertilizer Production Line
Turn composted organic material into a powder product through crushing, screening, premixing and bagging. The line starts with the feedstock and finished-product requirements.
Frequently asked questions
What hourly capacity does a 20,000 t/yr line need?
About 2.5–3.5 t/h.
Does a 20,000 t/yr line need a dryer?
The published granular configuration uses extrusion granulation followed by grading and packing. Whether you add a dryer and cooler depends on the formula and the granule moisture you need.
Trough or windrow for 20,000 t/yr?
Both work. Troughs suit plants that want steady output and a compact site; windrows need more yard area but less civil work.