PUHLER DHM Dry grinding system Dry mills

DHM system is suitable for kinds of dry powder fine milling and classifying process.

In the grinding and grading cycle system, the energy consumption of the grading portion increases as the fineness of the product increases. Therefore, for D97<1um products, the market demand for low energy classifiers will increase. The new generation of turbine air classifier TSD operates according to a new classification principle. This principle is based on the concept of solid bed flow (fluidized bed), replacing the traditional flow concept. This new concept makes it possible to significantly reduce pressure drop and grading energy consumption. The special blade geometry produces a uniform material flow and even a finer grade. For sub-micron applications, the advantages of the new generation of graders are obvious: low energy consumption, high quality, high throughput.

Compared to the traditional standard grading wheel, the new generation TSD grading wheel can reduce the pressure drop by about 60%. In this special case, the new generation classifier can increase the output by 33% to 38% compared with the traditional method, and the quality is guaranteed.

PUHLER joint with Italy L’officina SRL for dry grinding field

In 2015,PUHLER cooperate with Italy L’officina SRL developed DHM

dry grinding bead mill and acquired European union invention patent

which subvert the traditional jet mill and mechanical mill. L’officina SRL occupies mature dry grinding technology. At the meantime, DHM series dry grinding bead mill has a big advantages of operation.

Operating procedure

The material to be processed contained in the silo.

(1),is dosed through the conveyor

(2),inside the mill

(3),the rolling mill of the effect moves the grinding bodies (balls) contained inside the chamber of grinding.The ground product is extracted from the grinding chamber due to the vacuum created inside the piping

(4),through which the product is conveyed to the first dynamic separator

(5),inside the separator is a first selection of the powder, the coarse fraction (adjustable) is sent through line

(6) to the mill,the end part is conveyed into the second dynamic separator

(7) inside which is carried a further granulo metric selection,the fine powder (finished product) is collected in the process filter

(8), the second separator can be used to obtain two fractions granulometric (as in the diagram...) or for an ultra fine selection to obtain very fine final particle size(D97=1 um).

1，Dry grinding solutions for minerals & mining

2，Save energy 150% compare to jet mill

3，Maximum useful mill volume of 43000L.

4，Quality：

Products: D97 = 2 μm to 500 μm

Feed size: up to 30 mm

Hardness: High Mohs hardness 9

Have branch company of Hunan Jinling Machine tools Co.,ltd, have more than 100sets of own process equipment, 80% of mill parts achieve self-supply,have price and quality control advantages.

1、Drive adjustment: tensioning and lifting, easy maintenance

2、Protection system: feed pressure, discharge temperature, machine seal level and other monitoring and alarm

3、Antifreeze device: to provide protection for equipment in low temperature areas

4、material Inlet: equipped with filtering device to avoid blockage caused by impurities in the material

5、Mechanical seal: choose fixed outflow type to avoid internal flow material pollution.

6、Mechanical main shaft: 5 years maintenance-free, the guarantee of machine seal stable operation

7. PHN1000L provided by Puhler, currently is the biggest volume in Nano mill industry.

Automotive paint, electronic ceramics, photoelectric industry, nano color paste, nano functional coatings, biopharmaceuticals, cell crushing, chip polishing solution , magnetic materials, carbon nanotubes, color paste, dental filler, carotene, pesticide suspension, ceramic inkjet, inorganic pigment ceramic inkjet, lithium iron phosphate batteries, nano-scale special new materials, oxides, life sciences, food industry, cosmetics, graphene, ternary materials nickel cobalt manganese, electronic ceramics, titanium dioxide.