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ZS-Large-Volume Solid Waste Grinding Activator (Qinghai)
Published time:
2026-08-18 17:31
1. Title
High-Volume Solid Waste Cement Output Increase & Clinker Reduction — ZS Solid Waste Grinding Activator Industrial Validation
2. Customer Background
A cement company in Qinghai, China, operates a 4.2×13m open-circuit mill with roller press, producing P·C42.5 cement. The customer has long utilized a high proportion of solid waste (coal cinder + converter slag, totaling 18%), representing a typical solid waste resource utilization production line. The customer sought to increase mill output and further reduce clinker usage while maintaining high solid waste content.
3. Pain Points & Challenges
High Solid Waste Content, Poor Grindability: The 18% solid waste containing hard coal cinder and converter slag limits mill throughput.
Clinker Usage Still Has Reduction Potential: The existing 65% clinker content is relatively high for P·C42.5 cement.
Strength Must Be Guaranteed: After reducing clinker, both 3-day and 28-day strength must meet standard requirements.
4. Solution
Shengchuan's technical team conducted a ZS-Large-Volume Solid Waste Grinding Activator industrial validation on the customer's 4.2×13m open-circuit mill. Developed specifically for high-solid-waste cement systems, the product's core mechanism uses physical dispersion and chemical activation to reduce solid waste particle surface hardness and stimulate latent reactivity.
Activator Model: ZS-SCM Activator
Dosage: 800g/t (trial period)
Mix Proportion Adjustment: Clinker reduced from 65% to 61%, slag increased from 1.5% to 3.5%, furnace slag increased from 5% to 7%
Trial Method: 8-hour blank comparison + 96-hour continuous production trial
5. Results Data
5.1 Output & Mix Proportion Comparison
|
Indicator |
Blank Period |
Trial Period |
Change |
|
Clinker Usage |
65% |
61% |
↓ 4 percentage points |
|
Mill Output |
180 t/h |
233 t/h |
↑ 53 t/h (29.4%) |
|
45μm Residue |
16.6% |
12.3% |
↓ 4.3% (finer) |
|
SO₃ |
2.39% |
2.40% |
Stable |
5.2 Strength Comparison
|
Indicator |
Blank Period |
Trial Period |
Change |
|
3-Day Strength |
25.2 MPa |
27.1 MPa |
↑ 1.9 MPa |
|
28-Day Strength |
53.7 MPa |
54.3 MPa |
↑ 0.6 MPa |
|
Standard Consistency |
27.2% |
27.0% |
Essentially unchanged |
5.3 Economic Value Estimation of Output Increase
Based on annual production of 800,000 tons of cement and 7,000 operating hours per year, with output increasing from 180 t/h to 233 t/h:
Annual Capacity Increase: 53 t/h × 7,000 h = 371,000 t/year additional capacity
Operating Time Reduction for Same Output: To produce 800,000 tons, originally required 4,444 hours; now requires only 3,433 hours, saving 1,011 hours annually
6. Case Summary
After adopting ZS-SCM Activator, P·C42.5 clinker usage was reduced from 65% to 61% (↓4 percentage points), mill output surged from 180 t/h to 233 t/h (↑29.4%), 3-day strength increased by 1.9 MPa, and 28-day strength remained stable. Under high solid waste content (18%) conditions, the product achieved remarkable output increase and consumption reduction. The 29.4% output increase means significantly shorter operating time for the same production volume, indirectly reducing power consumption and equipment wear.
7. Application Recommendations
Suitable Conditions: High solid waste content (≥15%) cement production lines with solid waste types including coal cinder, converter slag, steel slag, etc., seeking output increase and clinker reduction.
Recommended Dosage: 800–1,000g/t.
Expected Results: Output increase of 20%–30%; clinker usage reduction of 3–5 percentage points.
8. Related Products
ZS-SCM Activator (product used in this case)
ZS-Admixture Activator
ZS-Slag Cement Grinding Aid
9. Call to Action
Shengchuan's technical team provides free industrial trial support. Contact us for a customized activator solution for your solid waste types and loading levels.
📧 shengchuangj@163.com
📞 +86 156 8886 0208 (WhatsApp)
🌐 https://www.shengchuanintl.com
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