For this exhibition, Henan Hongji meticulously prepared and showcased its flagship products, including mineral processing equipment, rotary kilns, ball mills, dryers, and crushers, suitable for overseas mining, ore processing, and building material calcination scenarios. These products integrate the company's years of R&D achievements and feature high efficiency, energy saving, stability, durability, and excellent environmental performance, perfectly meeting the needs of the overseas mining industry for green and large-scale production.

During the exhibition, the booth of Hongji Machinery was constantly crowded with people. Purchasers and partners from many countries and regions such as Turkey, the Middle East, Europe, and Central Asia stopped to inquire, and learned in detail about the product parameters, technical advantages, application cases, and customized solutions.

The company's professional overseas business team and technical personnel received the guests warmly throughout the process. Through product demonstrations, solution explanations, case sharing, one-on-one negotiations and other means, they comprehensively showcased Henan Hongji's R&D strength, production technology and service capabilities to domestic and foreign merchants.

This participation in the exhibition not only enhanced Henan Hongji's brand awareness and influence in overseas markets, but also built a bridge for in-depth communication between the enterprise and the international mining industry.

Hongji Machinery participated in 2026 Turkey Mining Exhibition最先出现在Hongji Mine Machinery。

Laterite nickel ore dryer dispatched to Jiangsu最先出现在Hongji Mine Machinery。

500t/d phosphate rock drying equipments shipped to Malaysia最先出现在Hongji Mine Machinery。

Applied material : 

Rock, gravel, different kinds of ore, fireclay, slag and other hard materials, such as gold ore, copper ore, iron ore, lead-zinc ore, tin ore, chrome ore, phosphate, rare earths, silica sand, silver ore, manganese ore.

Ball mill types

▸Dry ball mill: 

A dry ball mill is an industrial device used for dry grinding of materials to a desired particle size.The dry ball mill has the characteristics of fine and uniform product size, long service life and simple maintenance. It can be used to grind materials such as gypsum, cement clinker, limestone, feldspar, limestone, quartz sand, and dolomite.

▸Wet ball mill:

A wet ball mill is an industrial equipment used for wet grinding of materials. It is widely used in the mining, building materials, chemical and other industries, and is particularly suitable for processing materials containing water. Wet ball mills are commonly used for grinding minerals such as gold ore and copper ore.

Features of our ball mill machine

• Low operation and maintenance cost.
• High operating reliability.
• Wide applicability and Great yield.
• Smaller built-up space in comparison with mills seated on trunnion bearings.
• Easy operation, stable& reliable performance.
• Oil mist lubrication device guarantees the lubrication of all gears.

Ball mill production demonstration

Technical Parameter

FAQ

High-quality Mining Ball Mills for Sale最先出现在Hongji Mine Machinery。

Gypsum production line was shipped to Kyrgyzstan最先出现在Hongji Mine Machinery。

Gold processing line shipped to Mauritania最先出现在Hongji Mine Machinery。

A pozzolan grinding plant processes supplementary cementitious materials (SCMs) like fly ash, slag, or natural pozzolans into fine powders for blending with cement, reducing CO2, and enhancing concrete strength. Key equipment includes large crushers, ball mills, classifiers, and dryers, with ball mill offering better energy efficiency for grinding diverse materials, integrating drying, grinding, and classifying in one system for sustainable, cost-effective production of eco-friendly cement.

Process

Raw Material Handling: SCMs (fly ash, slag, calcined clay) are crushed, stored, and fed into the system.

Grinding:
Ball mill: Highly efficient, integrating drying, grinding, and classifying, reducing energy by 20-30% compared to ball mills, suitable for materials up to 15% moisture. Traditional, lower capital cost, but higher energy use; performance depends on ball charge and internal design.
Drying & Classification: Integrated systems dry the material (if needed) and separate particles to achieve desired fineness (specific surface area).
Blending: Ground pozzolan is blended with Portland cement clinker and gypsum, often using specialized grinding for "inter-grinding" to improve performance.

Feedback

• Sustainability: Reduces clinker content, lowering energy use and CO2 emissions.
• Enhanced Concrete: Improves long-term strength, mitigates alkali-silica reactivity, and reduces drying shrinkage.
• Advanced Tech: Dynamis' D-Pozzolan uses calcined clay, while Charah Solutions uses patented grinding tech for flexible, scalable production. 

Mozambique 30t/h pozzolan grinding production line最先出现在Hongji Mine Machinery。

Background

Bentonite is mainly composed of montmorillonite and illite and is commonly used in soil improvement, oil field drilling, environmental restoration and other fields. Bentonite processed by customers is mainly used as an ideal raw material for manufacturing catalysts, suspending agents and waterproofing materials. The customer believed that the grinding equipment produced by Acer met its requirements for building a factory, so he contacted us in 2018 to inquire about our company's products.

Process

The bentonite grinding process mainly consists of jaw crusher, Raymond mill, electric vibrating feeder, etc. The entire production process is quite advanced. The bentonite is first crushed to make its particle size more uniform. Finally, the crushed bentonite clay is finely ground to achieve the desired particle size and texture. The entire process requires strict control of operating parameters to ensure product quality meets requirements.

Feedback

Customers reported that the grinding equipment has a high degree of automation and a special grinding roller and ring structure that improves the grinding efficiency. The particle size of the finished product can be adjusted arbitrarily within the range of 500-1000 mesh. It has been running well since it was put into production today. Compared with other manufacturers, the grinding equipment produced by Hongji has greatly reduced maintenance costs. Customers are very satisfied.

Indonesia 16t/h bentonite grinding production line最先出现在Hongji Mine Machinery。

Through ten carefully produced videos, this article comprehensively analyzes each link of the cement production line, introduces in detail the key equipment in the whole process from raw material crushing, pre-homogenization, raw material preparation, clinker burning to cement grinding, and deeply explains their working principles and operating points.

1.Raw Material Crushing System

Limestone is transported into the factory by car and unloaded into the limestone yard. Limestone is crushed by a heavy hammer crusher, which can directly crush large pieces of limestone with a maximum particle size of 1000mm to less than 70mm at one time. The entire crushing line is equipped with a bag dust collector to ensure a clean environment and meet environmental emission requirements. The raw material crushing process is simple, reliable and advanced.

2.Raw Material Homogenization and Storage System

The 200m*60m long pre-homogenization material yard is used, and the homogenization effect is good. The stacker and reclaimer adopts program automatic control, and the chemical composition of the limestone after homogenization is stable. The long pre-homogenization material yard is used in conjunction with limestone, and the homogenization effect is good. The stacker and reclaimer adopts program control according to the characteristics of the raw coal to achieve automatic operation. The chemical composition of the raw coal clay or sandstone after homogenization is stable.

3.Raw Material Batching System

Limestone, sandstone, clay, iron ore and other raw materials are selected for batching production according to the local raw material resources. The above raw materials are pre-homogenized and then enter the batching system. Electronic belt scales are used for precise measurement according to the special formula of cement. Advanced microcomputer batching system and quality monitoring instruments are used to track, monitor and adjust the quality in real time.

4.Raw Material Grinding and Waste Gas Treatment System

The vertical mill technology is adopted to make full use of the waste heat of the rotary kiln preheater exhaust gas to dry grind and grind the raw material in the vertical mill. The raw material after grinding has good quality, good controllability, low grinding power consumption, and is equipped with a cyclone dust collector group and a bag dust collector, and the environmental emission meets the standard.

5.Raw Material Homogenization and Kiln Feeding System

The φ15×35m continuous raw material homogenization storage technology is adopted to homogenize the row material after grinding again. The X-ray fluorescence analyzer is used to track and monitor the material quality and adjust the ratio of various raw materials in time to meet the product quality requirement.

6.Clinker Burning, Storage and Bulk Shipment

The clinker calcination adopts a single-row five-stage cyclone preheater and decomposition furnace system, a 4.2×65m rotary kiln with a combustion system, and a high-temperature kiln tail flue gas and raw materials are fully heat exchanged, with high thermal efficiency.

The clinker cooling adopts a fourth-generation grate cooler, with an inlet temperature of 1350℃, an outlet of 65℃+ambient temperature, and a thermal efficiency of over 70%. The waste heat of the exhaust gas is utilized by the coal preparation system and discharged through a high-temperature bag dust collector. The clinker is sent to two φ15×35m clinker silos for storage through a crusher and a chain bucket conveyor, and can be sold in bulk.

7.Coal Powder Preparation System

Utilize the exhaust gas and waste heat of the cooler and adopt the wind-swept coal mill to optimize the utilization of coal resources and reduce production costs and power consumption. Coal powder is flammable and explosive, and is equipped with an automatic monitoring alarm and fire extinguishing system. Anti-static bag dust collector is used, and dust emissions are far below the national standard.

The raw coal is transported in by car, stored in the pre-homogenization warehouse, and then transported to the coal mill head warehouse by the stacker and reclaimer. After metering, it is sent to the φ3.2×(6+3) meter wind-swept mill, and the coal powder is graded and separated. The coarse powder is returned to the re-grinding, and the finished product is pneumatically transported to the kiln head and decomposition furnace. The waste gas is purified by the bag dust collector and then discharged.

8.Cement Batching and Grinding System

According to the requirements of different cement varieties, clinker, gypsum and mixed materials are mixed with high-precision metering and then sent to the grinding equipment. The closed-circuit pre-grinding + high-fine open-circuit grinding system consisting of two sets of φ3.2×13m ball mills, roller presses, V-type powder selectors and cyclone collectors has high production efficiency, low energy consumption, large specific surface area and stable quality.

After the material is ground by steel balls, the qualified particle size is output by the discharging screw, the screen returns the unqualified material and collects the dust, and the screened material is transported by the bucket elevator. The whole process has a high degree of automation, excellent production parameters, good product quality, high output, low energy consumption, meets the high standard emission requirements of environmental protection, and has strong market competitiveness.

9.Cement Storage and Transportation System

After being ground by the grinding system, cement is stored in 6 φ15×32m cement silos with a total storage capacity of 6×6500t. Cement is delivered to the silo through bucket elevators and air transport chutes. The bottom of the silo is equipped with a pressure reducing cone and an air charging device, and the air is supplied by a Roots blower. The cement in the silo is delivered to the bulk and packaging system through the unloading device, air transport chute, and bucket elevator. Bag dust collectors are installed on the top and bottom of the silo to purify the dust-containing gas before discharge.

10.Cement Packaging and Truck Bulk System

After chemical and physical tests, qualified cement is sent to the central warehouse and bulk warehouse through elevators and air conveying chutes. The cement in the central warehouse enters the eight-mouth packaging machine and is measured by a microcomputer scale with high precision and good stability.
The packaged 50kg cement bags are sent to the bagged cement trucks for loading and leaving the factory through the conveying system such as the picker, leveler, and cleaner. Bulk cement is sent to two φ6×20m bulk warehouses through elevators and air conveying chutes. Each warehouse is equipped with a bulk loader and is directly loaded and shipped.

Raw material to Finished Product: Cement Production Line 10 Systems最先出现在Hongji Mine Machinery。

Bolivian customers' glass crushing and grinding production line is mainly used for waste glass crushing and grinding, etc., to obtain glass powder with fineness of 30-425, which is used as additive for coating raw materials, glass asphalt building tiles, glass tiles, ceramic glazes, etc., to realize the purpose of secondary utilization of waste, recycling and environmental protection.

Process

Bolivian customers' materials are mainly waste glass bottles of solid waste. First, it needs to be primarily broken, and then it goes into the sand washer for screening and washing to remove dust, iron blocks, plastic and other debris.The clean broken glass pieces are transported to the storage yard by the belt machine for drying, and the dried glass pieces are sent to the grinding machine for grinding, and the materials are packed by the baler, and then transported to the destination by truck.

Details of the case:
Materials to be processed:  Waste Glass
Feed Material size: 100-200 mm
Finished Product size: 30-425 mesh
Production Capacity:  1-3tons/hour
Configure Equipment:  YGM75 high pressure roller mill, PC400*300 hammer crusher, XSD2610 sand washer, 2 belt machines
Case Site:  Bolivia, South America

Case Advantage

Choice of hammer crusher: It is suitable for crushing medium hardness materials such as limestone, slag, coke, coal and glass in cement, chemical industry, electric power industry and metallurgy industry. Especially have very good broken effect of the broken glass.

Choice of wheel bucket type sand washer: The impeller drive bearing device is isolated from water and water receiving materials to avoid the damage of bearings caused by water, sand and pollutants. This machine has almost no wearing parts except screen. It has long service life and long term of maintenance.

Choice of YGM75 high pressure roller mill: IN the main body of the high-pressure suspension roller mill, the high-pressure spring of 1000-1500kg pressure is tightened on the suspension roller hanger. After starting work, the grinding roller rotates around the main shaft, and under the action of high-pressure spring and centrifugal force, rolling close to the grinding ring, the rolling pressure is 1.2 times higher than the same dynamic conditions of Raymond powder machine, so the output is greatly increased.

Feedback

Considering the site environment, Hongji mining machinery technicians designed the sedimentation tank for the customer. Since there are many sunny days throughout the year in Bolivia, we have reduced the drying process for our customers and saved the cost. At present, the whole set of process equipment has been running for about 3 years, achieving considerable income. The customer came to visit Hongji again, and is considering buying another set of the latest European version of the mill, which output is 8 times of the original, 15-25 tons per hour.

Bolivia Customer’s Mill Production Line of Glass Crushing Powder最先出现在Hongji Mine Machinery。