Double-shaft Coal Mixer Machine

A pair of mixing shafts is intalled in the mixing tank, which are the active mixing shaft and the passive mixing shaft. The two ends of the mixing shafts are supported by the front and rear bearing seats, and the two ends of the mixing tank are respectively sealed by the sealing seat.

Mixing paddles are installed on the shaft according to the direction of screw propulsion, and the rotation directions of the two shafts are opposite. When the material is rotated by the mixing paddle, it is mixed and moved forward. The uniformity and residence time of the material mixing mainly depend on the angle between the paddles and the shaft and the rotation speed of the shaft.

The material is fed from the top of one end of the mixer. When the two horizontal shafts rotate, because the paddle is installed at a certain angle, the paddle on the shaft rotates in a screw shape, pushing the material forward along the shaft, and the shafts rotate together to drive the stirring and pushing of the paddles. Rolling up and down and moving left and right by extrusion, the material is gradually mixed evenly, and moves to the discharge end, and finally discharges at the lower opening at the other end.

Equipment equipped with the liquid adding device will add liquid when the material enters the mixing chamber, and fully wet and mix it during the mixing process.

Structure and Main Components

Mixing tool (paddle and shaft)

The mixing is transmitted from the transmission wheel to the main shaft through the pin coupling. The special shaft mixing paddles welded or equipped on the main shaft rotates synchronously, turning the material evenly in the mixing tank, making the material fully mixed. Thus greatly reducing the residual amount of the material.

Transmission part

The transmission is driven by the motor to drive the pulley, V-belt, reducer, etc. to make the main shaft rotate. The reducer and the working section of the main engine are made of nylon pins as the transmission joint, and are driven by the transmission mechanism, which is convenient for assembly and maintenance.

The force from the gear motor through the coupling is transmitted to the cylindrical gearbox, which transmits rotation to the mixer shafts. The drive system allows you to compensate for possible misalignment of the shafts due to installation errors, under shock, vibration and dynamic loads, guarantees high torque on the mixer shaft and overall reliability of the equipment.

Frame

All working parts of the machine are installed and fixed on the frame, and the frame is welded with thick steel plate and channel steel.

• The special paddle shape design can make the materials mix in an orderly manner. The paddles are arranged at different angles along the shaft direction, which is more conducive to the improvement of mixing accuracy.
• The mixing process is gentle and does not destroy the original state of the material.
• The paddles are made of high wear-resistant materials. Surfacing welding wear-resistant electrodes, thermal spraying cermets, and ceramic paddles are used when required.
• The transmission method can be directly driven by double output shaft reducer through universal coupling to realize pure torque input power.
• When used for moisture control, special atomizing nozzles and a liquid supply system with adjustable flow rate are used to ensure uniform humidification of materials.

Mixing and blending: FGD scrubber sludge, fly ash, and lime for SO2 neutralization, municipal sludge for composting facilities, pigments and dyes, and other processes combining moist and dry feed materials, gangue, shale, tailings, construction waste, clay and fly ash mixing for clay and tile making.

Agglomeration and dedusting: Granulation of agricultural chemicals, fertilizers, chemical consumer products, carbon powders, flue dust from dust collectors in power plants, animal feed, cement pelletizing pre-agglomeration, etc.

Material conditioning: Fly ash, cement or lime kiln dust, foundry dust, iron oxide, friction material waste, lead fume, zinc oxide, copper reverts and concentrates.

Customizing

Heavy duty	Wear-resistant surfacing paddle	Double shaft transmission	Pug sealer

• Shell: carbon steel, stainless steel, and abrasion resistant steel
• UHMW liners available
• Liquid addition ports available
• Hard-faced paddles available for abrasive applications