Is my material bed dense enough to keep the reduction ratio constant?
按粗/中/细三组分配比计算料层孔隙率 φ = 0.42 − 0.30·min(中料占比,0.35) + 0.15·max(0, 细料占比 − 0.30)，与最优配比窗口对比。
| Parameter | Type | Description |
|---|---|---|
coarse_frac | number | 粗骨料占比（可为任意一致单位，内部归一化）。 |
mid_frac | number | 中间粒级占比（关键充填相）。 |
fine_frac | number | 细颗粒占比。 |
Run via: local plugin
Input:
{
"coarse_frac": 50,
"mid_frac": 30,
"fine_frac": 20
}
Output (first fields):
| Field | Value |
|---|---|
input_normalized.coarse | 0.5 |
input_normalized.mid | 0.3 |
input_normalized.fine | 0.2 |
porosity | 0.33 |
optimal_porosity_reference | 0.28 |
gap_to_optimal | 0.05 |
optimal_grading.coarse_frac | 0.5 |
optimal_grading.mid_frac | 0.3 |
optimal_grading.fine_frac | 0.2 |
optimal_grading.porosity_min | 0.28 |
optimal_grading.note | 中间粒级为最优孔隙率充填的关键，过多细粉反使密实度过高、应力传导失配 |
verdict | 可接受，建议增加中间粒级充填 |
assumptions | [2 项] |
warnings | [0 项] |
POST a JSON-RPC 2.0 request to the public MCP endpoint — no installation, no API key:
curl -s https://mackorn.cn/ai/api/mcp.php \
-H 'Content-Type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/call",
"params":{"name":"mackorn_grading_porosity","arguments":{"coarse_frac":50,"mid_frac":30,"fine_frac":20}}}'
Endpoint: https://mackorn.cn/ai/api/mcp.php ·
Registry: cn.mackorn/mackorn-cone-crusher ·
npm: mackorn-cone-crusher
Particle-size and flow models are independently implemented from published literature (Whiten 1972; Bond 1952). Vendor parameters come from MACKORN NH/NS tables. Every output carries assumptions[] and warnings[]; unknown values are returned as null, never estimated. Literature parameters must be calibrated against on-site sieve data before use in a formal proposal.
A hydraulic cone crusher is a secondary/tertiary machine: feed above roughly 350 mm is refused.