The Mars Mineral Pin Mixer is a high-speed, powder conditioning and micro-pelletizing device. The pin mixer mixes dust or powders with an aqueous binder, such as water only, or water with organic or norganic additives, and creates small agglomerates through the mechanical action of its high speed rotor shaft and pin assembly. With the use of multiple powder feeders the pin mixer may be used to blend multiple feed powders into a single homogenous pellet with a composition reflecting the incoming powder feed ratios. This flexibility in operation makes the pin mixer a versatile tool in the high speed creation of proprietary blends for fertilizer and soil conditioning products.
Application
The Pin Mixer is ideally suited for micro-pelletizing, agglomerating, or conditioning powdered carbon-rich materials, such as carbon black (vCB, rCB, sCB), biochar, graphite, graphene, and animal manures and inorganic materials, such as cement kiln dust, pigments, coal fines, electric furnace baghouse dust, limestone fines, coke, petroleum coke fines, and microparticulate alumina and silica. The round pellets produced by the pin mixer may be subsequently discharged to a disc or drum pelletizer to shape and enlarge the pellets from the pin mixer into spherical pellets.
Pin Mixer |
Used as Pelletizer | Used as Mixer | End Product | Capacity | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Shape | |||||||||||
 |
Yes | Yes | 0.01 - 0.20 in. dia. 0.30 - 4.75 mm |
Spherical to irregular | 10 - 2,200
ft3/hr 0.28 - 62.3 m3/hr |
|||||||
- Straight-forward dedusting/dust wetting
- Solids-liquid mixing
- Micro-pelletizing
- Preconditioning
- Chemical reaction
The Mars Mineral Pin Mixer features a cylindrical, stationary shell with a replaceable rubber liner and a shaft with radially extending rows of pins in a helical pattern. There is a close tolerance between the tips of the pins and the inside of the mixer shell. Shaft rotational speed, and therefore tip speed, is high (several hundred RPM), which is higher than the speed of traditional paddle mixers, pug mills and Ampel conditioners.
The material enters at one end of the cylinder and is whipped by the pins as it moves from the inlet through the shell and to the bottom outlets. As a fine spray of liquid is added at the entry section and distributed throughout the powder, fine mixing and micro-agglomeration will occur. The end result is a wetted, agglomerated and densified micro-pellet.
Pin Mixer Specifications
| Model | Chamber Diameter | Chamber Length | Capacity (ft3/hr) | Capacity (m3/hr) | HP |
|---|---|---|---|---|---|
| 8D32Li | 8" | 32" | 10 | 0.28 | 20 |
| 12D54Li | 12" | 54" | 40 | 1.13 | 40 |
| 16D80i | 16" | 80" | 100 | 2.83 | 50 |
| 20D90Li | 20" | 90" | 180 | 5.10 | 75 |
| 22D90Li | 22" | 90" | 225 | 6.37 | 100 |
| 26D100Li | 26" | 100" | 365 | 10.33 | 100 |
| 30D120Li | 30" | 120" | 550 | 15.57 | 150 |
| 40D160Li | 40" | 160" | 1,300 | 36.81 | 350 |
| 48D190L | 48" | 190" | 2,200 | 62.30 | 350 |
Note: Capacity throughput based upon free flowing material.
Specifications and dimensions are for general use only.
Actual HP may change depending on material bulk density.
