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TECHNICAL SPECIFICATION & WORKING PRINCIPLE
INDUSTRIAL HEAVY-DUTY LOG WASHER
Henan Staurk Machinery Co.,Ltd's Log Washer is a heavy-duty industrial equipment specifically engineered for high-difficulty scrubbing and washing operations. Its primary function is to eliminate stubborn clay, sticky mud, and harmful contaminants adhering to the surfaces of stones, ores, or gravel through aggressive mechanical scrubbing.
1. EQUIPMENT OVERVIEW & WORKING PRINCIPLE
The equipment derives its name from its core components—two massive, parallel Log Shafts. These shafts rotate in opposite directions (counter-rotating) inside a heavy steel tub, resembling giant logs in motion.
The comprehensive working mechanism can be summarized into the following key phases:
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Aggressive Scrubbing: A large number of heavy-duty, corrugated-surface paddles are mounted on the two shafts. As the shafts counter-rotate, the interlocking paddles violently agitate and flip the material, triggering severe "material-to-material" attrition. Simultaneously, the paddles directly strike and shear away the hardened clay.
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Material Conveying: The paddles are pitched at a precise angle to systematically push and convey the material upward, from the lower feed end of the sloped tub to the elevated discharge end.
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Slurry-Water Separation: Massive volumes of wash water are injected during the scrubbing process. The stripped clay dissolves or stays suspended in the water, forming a slurry that overflows and discharges through the weir gates at the lower end. Meanwhile, the thoroughly cleaned aggregates or ores are pushed out of the higher discharge end.
Adjustable Retention Time: The inclination angle of the machine is fully adjustable. By modifying the slope, operators can control the retention time of the material inside the tub, thereby adjusting the washing intensity.
2. MAIN APPLICATIONS & CORE ADVANTAGES
2.1 Applications:
The Log Washer is primarily deployed to tackle materials with extremely high clay content that conventional washing equipment cannot process.
When the raw feed contains more than 20% clay, it effectively eradicates mudballs prior to crushing, preventing downstream crushing and screening equipment from choking or clogging.
It is strategically positioned upstream of the crushing process, typically handling materials with an upper grain size limit of around 100 mm.
Common Target Materials: Gravel, crushed stone, hard rock ores, limestone, iron ore, oil sands, mineral sands, etc.
2.2 Core Advantages:
Advantage |
Description |
High-Efficiency De-mudding |
Capable of breaking down and washing away highly plastic, insoluble clay that other equipment fails to treat. |
Premium Product Output |
Generates clean, high-specification aggregates that strictly meet construction, concrete, and industrial standards, maximizing product commercial value. |
Downstream Equipment Protection |
Eliminates harmful impurities, drastically reducing wear and tear on downstream crushers and conveyor belts, which significantly cuts overall maintenance costs. |
Heavy-Duty & Durable Structure |
Specifically built for heavy loads and high-abrasion operating conditions. Maintenance demands are relatively low, primarily involving the replacement of worn paddles. |
3. CRITICAL COMPONENT OPTIMIZATION: SHAFT DESIGN
The design of the "Log Shaft Assembly" is the single most critical factor determining the performance and lifespan of the machine. The key engineering parameters include:
3.1 Main Shaft Structure:
The system utilizes monolithic, thick-walled, high-grade steel tubular shafts. This ensures ultimate structural integrity, preventing any bending, warping, or catastrophic failure under high-torque and severe impact loads.
3.2 Paddle Attachment (Spud Connection):
The paddles are securely bolted onto heavy steel spuds that are robustly welded directly to the main tubular shaft. This heavy-duty design ensures seamless and highly efficient transmission of massive driving forces.
3.3 Paddle Material & Geometry:
Premium Wear-Resistant Material: When dealing with highly abrasive materials (such as hard rock), the paddles are cast from ultra-wear-resistant High-Chromium Cast Iron (with a hardness reaching up to 600 Brinell / HB). This exponentially extends the lifecycle of the components and lowers the operating cost per ton.
Corrugated Geometry: The paddle faces feature distinct corrugations or grooves. This geometric design drastically expands the contact surface area with the matrix, significantly boosting the efficiency of "material-to-material" scrubbing.
4.Technical parameters
Model |
Spiral Diameter (mm) |
Rotating Speed (r/min) |
Feeding Size (mm) |
Tank Slope (°) |
Output (t/h) |
Power (kW) |
Weight (t) |
2RXL200 |
Φ200×2400 |
32 |
≤20 |
≤12 |
3 |
2.2 |
0.4 |
2RXL250 |
Φ250×3200 |
30 |
≤25 |
≤12 |
5 |
3 |
0.6 |
2RXL320 |
Φ320×3200 |
28 |
≤30 |
≤12 |
10 |
4 |
0.9 |
2RXL400 |
Φ400×4600 |
23 |
≤30 |
≤12 |
20 |
5.5 |
1.9 |
2RXL540 |
Φ540×4600 |
23 |
≤30 |
≤12 |
25 |
7.5 |
3.9 |
2RXL600 |
Φ600×6000 |
23 |
≤40 |
≤12 |
35 |
15 |
6.5 |
2RXL750 |
Φ750×7600 |
22.7 |
≤70 |
≤12 |
50 |
40 |
17.2 |
2RXL800 |
Φ800×7600 |
22 |
≤70 |
≤12 |
70 |
45 |
18.9 |
2RXL914 |
Φ914×7600 |
21 |
≤70 |
≤12 |
100 |
55 |
23 |
2RXL1000 |
Φ1000×8000 |
20 |
≤80 |
≤12 |
130 |
75 |
28 |
2RXL1200 |
Φ1200×8500 |
18 |
≤100 |
≤12 |
180 |
90 |
35 |
2RXL1500 |
Φ1500×9000 |
16 |
≤120 |
≤12 |
250 |
110 |
48 |
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