A fly ash conditioner quotation should state the required dry-ash feed, incoming material condition, water-system boundary and installation scope before a price is compared. A listing for a “40 t/h mixer” does not answer whether that figure refers to dry feed, as-received material or conditioned discharge. Resolve the basis in the supplier’s written return.
The SJ twin-shaft humidifier mixer range provides catalog candidates for powder conditioning. Select from the current model table and request confirmation for the actual duty. The catalog is not a complete ash-handling plant offer or a universal guarantee of final moisture, dust emissions or destination acceptance.
Build a fly ash conditioner quotation on one process sheet
Describe the ash source and condition without assuming that all fly ash behaves alike. Give temperature, incoming moisture and its basis, bulk density, expected variability, lumps and the required dry-solids rate. Show the equipment above and below the mixer, the available headroom and whether discharge enters a truck, conveyor or other receiver.
State continuous running hours, starts, interruptions and any retained-material restart requirement. Identify who provides controlled feeding and upstream isolation. A mixer inlet drawing alone does not define the load or stability of material entering it.
FEECO’s engineering description treats a continuous pugmill as coordinated solid and liquid feeding with mixing and material advancement. That supports defining the complete process boundary. Its own dimensions, residence times and capacities belong to its equipment and are not SJ specifications.
Compare SJ-40 and SJ-80 from the published fields
The current VOGO catalog reproduces these HUIGAO 2023 reference fields. They are product data, not a worked selection or a guaranteed dry-feed acceptance test.
| Model | Catalog throughput field | Drive power | Shaft speed |
|---|---|---|---|
| SJ-40 | 40 t/h | 11 kW | 34 rpm |
| SJ-80 | 80 t/h | 18.5 kW | 34 rpm |
The throughput field alone does not establish its dry/wet basis for your project. For an inquiry requesting 40 t/h of dry ash, ask the supplier to name the proposed model, declare the rating basis and explain the permitted material envelope. Do not automatically select SJ-40 because its suffix is 40, or SJ-80 merely because the larger number appears to provide margin.
Installed drive power is also not measured energy per tonne. Retain the published kW for electrical and offer comparison, then request operating evidence if energy cost is part of the purchase decision. The existing conditioning-water calculation guide owns the moisture arithmetic; this quotation sheet should reference the agreed basis instead of inventing another universal water percentage.
Make the water package visible in the price
Ask whether the offer includes only spray connections or a complete water train. Identify the supply pressure and flow available at the defined interface, water quality and the party responsible for any treatment. Require a response for pump, strainer, flow measurement, control valve, shutoff, nozzles, piping and control integration where applicable.
The Astec engineering sheet lists water-system and weighing options separately from its base plant. It illustrates why a package boundary must be explicit; it does not establish that these options are standard on SJ equipment.
Use an included-scope comparison rather than a price range
Send the same return schedule to every bidder. This original worksheet is a purchasing aid, not a list of features automatically supplied by VOGO.
| Scope line | What the quotation must say | Comparison risk if omitted |
|---|---|---|
| Mixer | Exact model, configuration and confirmed duty | Comparing different rating bases |
| Feed interface | Feeder, isolation and transition responsibilities | Unpriced upstream equipment |
| Water package | Included components and utility interface | Treating a spray bar as a complete system |
| Discharge | Hood, transition and receiving arrangement | Excluding the actual loadout connection |
| Controls | Panel, field devices, permissives and wiring boundary | Paying twice or leaving a missing interface |
| Installation | Supports, access, lifting and site work | Comparing supply-only with installed cost |
| Acceptance | Material trial, measurements and document handover | Dispatch mistaken for accepted performance |
Mark each line included, excluded, buyer-supplied or unresolved. Obtain currency, offer date, validity, named delivery place, packing, freight, taxes and commissioning terms for the actual transaction. A supplier’s public price for another configuration cannot establish a VOGO price, a regional market range or delivered cost.
If an offer is incomplete, show the unresolved allowance separately. Missing scope should not enter the comparison as zero. Confirm which party pays for site utilities, test material and repeat trials before agreeing payment milestones.
Buy measurable acceptance and service access
Agree the intended operating envelope and how the conditioned material will be evaluated. Specify representative feed conditions and the moisture, handling or dust criteria required by the project. Define sampling, duration, test responsibility and release decisions in the contract; no universal acceptance number follows from the model table.
Require the supplier’s proposed response to lost ash feed, lost water and downstream unavailability. Ask for cleaning access, nozzle inspection, wear-part identification and the necessary isolation provisions. OSHA’s hazardous-energy overview addresses unexpected startup and stored energy during servicing. Apply the site’s authorized procedure and applicable jurisdiction rather than treating a stop button as isolation.
Simple wetting for dust control must remain distinct from chemical stabilization and disposal approval. If additives or immobilization performance are required, define that treatment scope and the receiving authority’s evidence separately.
Conclusion
Compare a fly ash conditioner quotation against one declared process duty and a completed scope return. Keep SJ reference data separate from project acceptance, expose water and site interfaces, and obtain current transaction-specific terms. The defensible price is attached to an identified configuration and measurable handover, with unresolved items kept visible.
