A coal-clarifier purchase should not imply that a nonionic flocculant can be introduced anywhere in the preparation circuit. Qualify the actual clarification stage and the route of treated water. Feed campaigns can change the candidate window, while downstream recovery needs its own evidence.
Map the clarification boundary
Identify feed collection, thickener or clarifier, residual handling and water return points. Record coal and mineral fines, solids and flotation reagents relevant to the sampled stream. Explain whether polymer-treated water can return upstream. The coal-water application path distinguishes solids clarification from a direct flotation-additive recommendation.
Compare across justified feed campaigns
Test candidates and an incumbent reference on representative normal and difficult feeds with controlled preparation. Record active dose and the useful operating window. A successful campaign sample may not cover a materially different fines or ash-forming contribution. Compare water quality and compaction rather than the largest floc. Keep the sampling and handling method consistent so missing fines do not distort the result.
Verify recovery-sensitive effects separately
Where treated water reaches flotation or other selective steps, assess the relevant recovery and quality indicators with the responsible plant team. Do not infer compatibility from clear overflow alone. The recycle-trial procedure retains full-circuit timing. A chemical advantage at clarification can be incomplete evidence if a downstream objective moves adversely.
Plan supply within the accepted boundary
Record grade, injection point, preparation and campaign range with approval. Forecast consumption from measured solids loading and verified dose. If alternatives are needed, define product identity and changeover controls before ordering. A supply framework should not silently extend qualification into flotation or permit unreviewed candidate substitution. Retain practical storage and delivery constraints with the commercial quantity.
Keep an approval worksheet
Record the measured result or agreed document reference for each item. A missing observation remains a qualification limit, not an assumed pass. Use the same candidate identifier throughout sampling, quotation and receiving so a successful comparison cannot be transferred to an unreviewed product or process condition.
| Requirement | Evidence | Approval decision |
|---|---|---|
| Circuit boundary | Clarifier and treated-water return map | Product use stays within the reviewed stage |
| Feed range | Campaign-specific paired results | Approval covers stated fines conditions |
| Recovery check | Relevant downstream indicators | Overflow benefit does not conceal a circuit penalty |
Prepare the sample and quotation request
Send clarifier feed origin, fines and water range, circuit map, current candidate and active-dose basis. Include overflow, underflow and relevant flotation or reuse indicators. Identify upcoming campaign changes and whether one or several approved grades are planned.
Include quantity, packaging and destination alongside the operating record. The nonionic PAM sample worksheet helps define the comparison; the quality and supply requirements keep the approved product connected to its shipment. Gongyi Xinqi Polymer Co., Ltd. can review the application and commercial scope. Confirm grade suitability, delivery availability and terms for the selected candidate rather than infer a guaranteed result from the nonionic label.
Request a focused product review
Send feed, separator and purchasing requirements for the intended duty.