GZL series dry roll granulator
◆ GZL series dry roll granulator adopts dry extrusion process technology to compress powders with moisture content <10% into tablets, and then crush, granulate, and sieving to make tablets and block materials. It becomes a granular material that meets the requirements of use.
◆ Dry roll granulation is mainly by external pressure to force the material to pass through the gap between two rollers rotating on the opposite side and compress it into tablets. During the rolling process, the actual density of the material can be increased by 1.5-3 times, thereby achieving a certain strength requirement.
◆ The material is forcedly compression-molded by mechanical pressure, and no wetting agent can be added, and the purity of the product is guaranteed.
◆ Dry powder is directly made without the subsequent drying process, which is more conducive to the connection and transformation of existing production processes.
◆ High particle strength, the increase of bulk specific gravity is more significant than other granulation methods. It is especially suitable for the occasion of increasing the product specific gravity.
◆ It can control environmental pollution, reduce powder waste and packaging costs, and improve product transportation capacity.
◆ Compact structure, convenient maintenance, simple operation, short process flow, low energy consumption, high efficiency, low failure rate, wide range of suitable raw materials, roller pressure can be freely adjusted according to different materials.
◆ The feeding and feeding device adopts variable frequency stepless adjustment control, which has a high degree of automation, can realize one-man multi-machine control, low labor intensity and long-term continuous operation.
◆ The main transmission parts are made of high-quality alloy materials, stainless steel materials, titanium materials, chromium and other surface alloys, which greatly improves the wear resistance, corrosion resistance, high temperature resistance and pressure resistance, making the machine have a longer service life.
◆ Various dry powder materials are added from the top of the equipment. After degassing and spiral pre-pressing, they enter two equal rolls. The rolls rotate relative to each other. The materials are forcibly sent between the two rolls. The rolls bite the material into the nip for compression, and the material passes compression. After the zone, the surface tension and gravity of the material cause it to come out naturally. The strips of finger strips after entering the granulator are crushed by a rotary blade row, and the broken material enters the granulator. The rolling blade row makes the particles and part of the powdery material enter the rotary vibrating screen for screening. The qualified products are sent to the finished product warehouse through the conveyor. The powdery sieve material is sent back to the raw material warehouse for secondary rolling through the conveyor. The size of the pressing force can be adjusted by the pressure of the hydraulic cylinder according to the needs of the granulation operation.
◆ By changing the grooved form of the roller surface, flake, strip and flat ball materials can be obtained.
The raw material enters the bucket elevator through the screw conveyor through the feeding port, and the raw material powder is sent into the vibration raw material bin by the bucket elevator, and the material is fed into the variable frequency screw feeder through the quantitative feeder to pre-compress the material. The pre-compressed material is pressed into the middle of two relatively rotating two pairs of pressure rollers for compaction. Its compaction force is transmitted to the material by the pressure rollers through the thrust of the oil cylinder. Machine, crush it into granules of uneven size, and then enter the granulator for trimming. The trimmed granules are extruded through a sieve plate with a mesh opening into a screening machine, and the finished granules are passed through a sifter into a bucket elevator and sent to the finished product bin. The sieved powder is returned to the raw material bin through the screw conveyor and compacted again to complete a closed cycle.
Petrochemical, Fine Chemicals, Medicine, Food, Metal Powder
Biological engineering, pesticides, fertilizers, minerals, coal
Item \ Parameter \ Model
GZL - 240
GZL - 360
GZL - 450
Roller diameter (mm)
Effective width of roll (mm)
Roller speed (rpm)
Forming pressure (mpa)
Maximum thickness of rolled sheet (mm)
Rolling sheet output (kg / h)
Finished size (mm)
Finished product output (kg / h)
Host power (kw)
Total installed capacity (kw)
Dimensions ( length x width x height ) (mm)
1500 × 1300 × 5000
2000 × 2000 × 9000
2500 × 2500 × 10000