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HLM Vertical Roller Mill

HLM series vertical mill is an advanced energy-saving mill equipment integrating drying, grinding, grading and conveying, developed by Guilin Hongcheng through learning and introducing foreign advanced technology and after more than 20 years of painstaking research and development.

Guilin Hongcheng HLM vertical mill has the advantages of high grinding efficiency, low power consumption, large feeding particle size, easy adjustment of product fineness, simple equipment process, small footprint, low noise, small dust, easy use and maintenance, It has the advantages of low operating cost and low consumption of wear-resistant materials.

This product solves the problems of low output, high energy consumption and high maintenance cost of ordinary industrial mills. The product performance has reached the international advanced level. It can replace expensive imported vertical mills and meet the needs of large-scale, intelligent and intensive industrial milling.

hlm vertical mill materiel

It can be widely used in electric power, metallurgy, solid waste treatment, cement, chemical industry, non-metallic minerals and other industries. . The materials to be ground range from high humidity (20-30% water content) to dry materials (<1%), from extremely difficult to easy-to-grind materials, the product fineness ranges from coarse to fine, and the types of grinding powder are rich.

Introduction of HLM Vertical Roller Mill

Site of HLM2600 vertical grinding mill plant for rubble powder making

Advantages And Characteristics

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High grinding efficiency

The single machine has large production capacity and low energy consumption, and can use low-valley electricity. Compared with ball milling, the energy consumption is 40-50% lower.

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High degree of automation

It adopts PLC automatic control system and can realize remote control, which is easy to operate, easy to maintain and reduce labor costs.

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Product quality is stable

The material stays in the pulverizer for a short time, and the repeated grinding is reduced. The product has a uniform particle shape, a narrow particle size distribution, good fluidity, and strong adaptability. The iron content in the product is very small, and the whiteness and purity are high.

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Low operation and maintenance cost

The grinding roller can be pulled out of the machine by hydraulic device, which is convenient for maintenance. The roller sleeve can be turned over to extend the service life of the wear-resistant material, with low wear and tear. The grinding roller and the lining plate of the grinding disc are made of special materials and have a long service life.

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Low noise and environmental protection

The whole system has small vibration and low noise. It adopts the overall sealed negative pressure operation system, and the air box pulse dust removal system, which has no dust overflow, and can basically realize a dust-free workshop.

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Strong drying ability

Direct hot air, the hot air directly contacts the material in the mill, the drying ability is strong, and the moisture content of the feed material can reach up to 15%. No additional dryer is required, saving equipment investment costs and energy consumption costs.

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High reliability

The grinding roller limit device is adopted to avoid the violent vibration of the mill due to material breakage. Adopting a new type of grinding roller sealing device, the sealing is reliable, and there is no need to seal the fan, which further reduces the oxygen content in the mill and has excellent explosion suppression performance.

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Comprehensive investment cost is low

It integrates crushing, drying, grinding, grading and conveying, with simple process flow, compact structure and small footprint, only 50% of the ball mill. It can be arranged in the open air, with low construction cost and direct investment cost reduction.

Equipment Parameters

Model Diameter of grinding table(mm) Capacity(t/h) Raw material moisture Fineness Product Moisture Power(kw)
HLM32/2 2600 85-100 <10% R0.08<12% ≤1% 800-1120
HLM34/3 2800 130-160 1120-1250<
HLM42/4 3400 190-240 R0.08<14% 1800-2000
HLM44/4 3700 240-300 2500-2800
HLM50/4 4200 320-400 3150-3350
HLM53/4 4500 400-500 3800-4200
HLM56/4 4800 440-550 4200-4500
HLM60/4 5100 550-670 5000-5400
HLM65/6 5600

600-730

5600-6000

Model Diameter of grinding table(mm) Capacity(t/h) Raw material moisture Product specific surface area Product Moisture Power(kw)
HLM21/2P 1700 20-30 ≤2%  220-360㎡/kg(R0.08≤15%) ≤1% 400
HLM26/2P 2000 42-55 630
HLM32/2P 2600 60-75 900
HLM34/3P 2800 90-110 1400
HLM35/3P 2800 130-160   2000
HLM42/4P 3400 160-200 2500
HLM44/4P 3700 190-240   3000
HLM45/4P 3700 240-300 3800
HLM53/4P 4500 300-380 4800
HLM56/4P 4800 330-420 5300
Model Diameter of grinding table(mm) Capacity(t/h) Raw material moisture Product specific surface area Product Moisture Power(kw)
HLM32/2c  2600 30-35 <3%  ≥350㎡/kg ≤1% 1400
HLM34/3c 2800 70-80 1800
HLM42/4c  3400 96-110   2500
HLM44/4c 3700 130-150 3350
HLM50/4c 4200 150-170 3800
HLM53/4c 4500 170-200 4500
HLM56/4c 4800 200-230 5300
HLM60/4c   5100 240-270  6150
HLM65/6c   5600 250-290  6450-6700
Model Diameter of grinding table(mm) Capacity(t/h) Raw material moisture Product specific surface area Product Moisture Power(kw)
HLM32/3S  2600 30-40 <15%  ≥420㎡/kg ≤1% 1400
HLM34/3S 2800 50-60 1800
HLM42/4S  3400 70-83 2500
HLM44/4S 3700 90-110 3350
HLM50/4S 4200 110-140 3800
HLM53/4S 4500 130-150 4500
HLM56/4S 4800 150-180 5300
HLM60/4S   5100 180-200 6150
HLM65/6S 5600 200-220 6450-6700
Model Diameter of grinding table(mm) Capacity(t/h) Raw material moisture Fineness Product Moisture Power(kw)
HLM17/2M  1300 10-15 <15%  R0.08=2-12% ≤1% 160-185
HLM19/2M  1500 14-22 220-250
HLM21/2M  1700 20-28 315-355
HLM26/2M  2000 26-35 400-450
HLM29/2M  2400 45-56 560-630
HLM32/3M  2600 56-70 800-900
HLM34/3M  2800 70-90 900-1120
Model Diameter of grinding table(mm) Capacity(t/h) Raw material moisture Fineness Product Moisture Power(kw)
HLM10/2M 880 3-5 <15%  R0.08=10-15%(Fineness of pulverized coal for blast furnace pulverized coal injection:200mesh80%passed) ≤1-6% 45-55
HLM14/2M 1100 7-10 90-110
HLM17/2M 1300 13-17 160-185
HLM19/2M 1500 18-24 220-250
HLM21/2M 1700 23-30 280-315
HLM26/2M 2000 29-37 355-400
HLM29/2M 2400 45-56 560-630
HLM32/2M 2600 56-70 710-800
HLM34/3M 2800 70-90 900-1120
HLM42/4M 3400 110-135 1400-1600
HLM44/4M 3700 140-170 1800-2000
HLM50/4M 4200 200-250 2500-2800
HLM56/4M 4800 260-320 3150-3500
Model Diameter of grinding table(mm) Capacity(t/h) Raw material moisture Fineness Power(kw)
HLM14/2X 1100 5-7 ≤5%  325mesh(44μm)90%passed 110-132
HLM17/2X 1300 9-13 185-200
HLM19/2X 1500 15-20 250-280
HLM21/2X 1700 24-32 355-400
HLM26/2X 2000 26-35 450-500
HLM29/2X 2400 36-45 560-630
HLM32/2X 2600 45-58 710-800
HLM34/2X 2800 56-80 1120-1250
Model Diameter of grinding table(mm) Capacity(t/h) Raw material moisture Fineness Product Moisture Power(kw)
HLM21/3X 1700 20-25 ≤15% 100mesh(150μm)90%passed ≤3% 400
HLM26/3X 2000 25-31 560
HLM29/3X 2400 42-52 710-800
HLM32/3X 2600 52-70 900-1120
HLM34/3X 2800 70-82 1120-1250
HLM42/4X 3400 100-120 1800-2000
HLM44/4X 3700 140-160 2500-2000
HLM50/4X 4200 170-190 3150-3350

Working Principle

How the device works

working principle:

The motor drives the reducer to drive the grinding disc to rotate, and the material is fed into the center of the rotating grinding disc by the air-locking feeding equipment. Under the action of centrifugal force, the material enters the grinding channel, and the grinding rod is continuously rotated and rolled, so the material is squeezed, ground and sheared.

At the same time, the hot air is sprayed upwards evenly at a high speed from the air ring surrounding the grinding disc. The pulverized materials are blown up and dried, and enter the classifier with the wind. The qualified fine powder passes smoothly and is collected by the dust collection equipment. The unqualified coarse powder falls back to the grinding table under the action of the classifier blade, and is re-ground together with the newly fed material.

Working video:

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