HuaMing Alumina, Bricks & balls

BRIEF INTRODUCTION

HuaMing Alumina Technology Ltd., is one of the leading manufacturers of alumina ball, alumina grinding ball, inert alumina ball in China. We have more than 30 years’ experience in the manufacturing of ceramic products. We earned customer’s trust and always enjoy long term cooperation with our customers.

Our products include alumina grinding ball, high alumina ball, inert alumina ball, mill linings alumina brick with annual production capacity exceeds 25,000 tons.

Our aim is to provide best products and service to the electric power, chemical industry, metallurgy, environmental protection, pharmaceuticals, oil refining, light industry etc.

Enable to provide full service to our customers, we established ZIBO UNION TRADING CO., LTD. on 2010, which specially export our products along with refractory materials and other materials may be required by customers.

The company has a rigorous quality control system that guarantees stable performance and proven quality of the final products from raw material selection, batching, production process management through factory test control. Our products are sold across borders to the U.S., Italy, Spain, Japan, Arab, Russia, Tailand and South Africa etc.

Early of 2017, for matching the increased demand from customers, we started another production line in Nanding Town which focus on high quality balls and bricks. With high quality products, perfect service and scientific management, the popularity, reputation and social recognition of HUAMING ALUMINA & ZIBO UNION TRADING are improved greatly.

Facing the prevailing international competition, we are also improving our Brand Strategy and Multi-fields Strategys and we’ll be more closer to market and customers and providing best solution upon customer’s requests.

On basis of double win and mutual benefits, we are willing to honestly cooperate with business people from all circles of the world.

bricks&balls

Development Trend of Ceramic Raw Material Processing Technology

Ceramic products in the production process, the raw material processing consumes a large proportion of energy consumption. At the same time the quality of raw materials processing also determines the quality of the product. Therefore, the research of raw material processing technology should focus on reducing energy consumption and improving the quality of slurry and powder.

Talk about the preparation of ceramic slurry. At present, the preparation process of ceramic slurry is widely used as: one-time pulping method for wet grinding of ceramic raw material by ball mill. The method of dispersion of raw materials is uniform, but the efficiency of grinding is not high. Ceramic industry ceramic raw materials are mostly natural minerals, raw materials, feed the size of about one centimeter, grinding ball diameter is usually 4-10 cm, the specific surface area is small. When the ball mill is working, at least twice the weight of the cylinder and the liner are rotated together. The weight of the raw material processed by the ball mill is in the tens to hundreds of tons, which consumes a lot of energy. Mill speed in each minute more than ten to several tens, turn on the ball by the free fall of raw materials will be smashed coarse particles. The initial particle size of the raw material is large, and the initial crushing is carried out by the impact of the grinding ball. With the decrease of the particle size of the raw material, the impact crushing effect will decrease rapidly. The efficiency after the grinding depends on the specific surface area of ​​the grinding ball and the ratio between the grinding ball and the raw material Relative friction. Ball mill grinding ball diameter, low speed, making the ball between the ball and the relative friction between the low frequency, and ultimately lead to low grinding efficiency. There are also using ceramic raw materials by Raymond machine grinding, add water, mixing pulp or granulation method. This method requires all the raw materials to be pre-processed, due to impurities and mixed uniformity is not good, the current industry rarely use this method on a large scale.

Stirring mill is a new type of fine grinding equipment, more used in inkjet ink and nano-powder grinding processing. The grinding wheel is very small, about 0.2-10mm; grinding wheel in the mill high-speed rotation (up to several hundred turn), driving the grinding ball and material relative friction; in the high-speed Under the action of centrifugal force, coarse grain material and grinding ball adhere to the operation, fine particles concentrated in the middle of the mill was discharged, will not produce excessive crushing, so grinding efficiency is extremely high. At present it is in the traditional ceramic industry billet grinding has not yet used, one of the reasons is that a large number of impurities containing natural minerals can not be used directly.

The use of ball mill and mixing mill in combination with the method, that is, the completion of pre-grinding milling, grinding mill to complete the late grinding, will make the traditional ceramic raw materials processing efficiency to produce a qualitative leap.

Let’s talk about the preparation of ceramic powder. The most commonly used dry pressing molding process is: ceramic raw materials by wet grinding, atomization drying granulation method. The powder obtained was hollow spherical body, powder flow is good, brick consistency is better, deformation and cracking defects less. But there are still product deformation, large-scale flat products need to edging, scratching. The other is dry grinding, add dry water into the ball granulation, and then drying the milling method. Dry powder to solve the wet grinding water is high, the late drying energy consumption of the shortcomings of the dry granulation as a solid ball, forming the density of the green body, the subsequent drying, burning shrinkage small. But it still exists raw material mixing uniformity is poor; due to the solid particle hardness, forming the body between the particles there is a small gap between the defects; difficult to adapt to individual products, the process is generally poor applicability, only for sanitary ware or glazed tile blank use, So has not been a large number of popularization and application.

The hollow particles obtained by atomization drying granulation and granulation by dry method can obtain solid spherical powder with uniform composition and good water content, and if the part is atomized and dried Powder effect will be better. The drying, firing deformation and shrinkage of the molded body will be greatly reduced, the quality of the product will be significantly improved, and the energy consumption of the later grinding will be reduced.

In addition, the slurry and pigment powder mixture; slurry vacuum deaeration technology is also affecting the quality of dry products and grouting products, an important part of the concern. Foreign in the process and equipment, the study than we are deep, do better than we are, because they really used the mind, sink down, it is worthy of our industry to reflect on, study hard.

ball stones

Ball of stone

It is widely used in petroleum, chemical, fertilizer, natural gas and environmental protection. And other industries, as the catalyst within the reactor cover material and tower packing. It can be used as grinding bodies for ball mill.

Introduction

“Ball stone” that is spherical stone, divided into artificial stone and natural ball stone. Artificial stone is the use of high-quality raw materials, the use of advanced spray drying technology, dry automatic isostatic pressing process, the high temperature fuel tunnel kiln sintering, the products are widely used in ceramic enterprises grinding glaze, grinding blank, As a grinding medium. Natural ball stone that is natural spherical pebbles, from the experience of thousands of years ago after the crustal movement by the ancient river bed uplift produced gravel mountain, experienced torrential impact, continuous handling of water during the extrusion, friction. In the course of thousands of years of vicissitudes of evolution, they are full of waves of water washed the movement, was gravel collision friction lost irregular edges and corners, and the sand was buried in the underground silence for millions of years. The main chemical composition is silica, followed by a small amount of iron oxide and trace amounts of manganese, copper, aluminum, magnesium and other elements and compounds. They have different colors, such as red for the iron, blue for the copper, purple for the manganese, yellow translucent silica colloidal stone, jade color with green minerals and so on; due to these pigment ions into the oxidation Silicon hydrothermal in the different types and content, which showed a shades of light, changes in depth and color, so that the stone showing a black, white, yellow, red, dark green, gray and other color.

The use of stone

Artificial gemstone is widely used in oil, chemical, fertilizer, natural gas and environmental protection industries, as the reactor catalyst supporting the material and tower packing. It has high temperature and pressure, low water absorption, chemical stability and characteristics. Can withstand acid, alkali and other organic solvents corrosion, and can withstand the production process of temperature changes. Its main role is to increase the gas or liquid distribution point, support and protection of the strength of the catalyst is not high.

ball stones, natural

ball stones, natural

Natural ball stone

Features: high hardness, good toughness, low wear Is the best domestic quality stone ball. Specifications: 3-19 cm, mainly used for grinding ceramic raw materials and quartz sand (powder).

Wear-resistant alumina ball stone wear-resistant alumina ball with high-quality selection of raw materials, advanced molding technology, after high-temperature tunnel kiln calcined. Products with high density, high hardness, low wear, good seismic stability, corrosion resistance and other characteristics, is the glaze, blank and a variety of mineral processing the best grinding media. Products are widely used in ceramics, cement, coatings, refractories, inorganic mineral powder and other industries.

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alumina bricks lining installation guide

The Installation:

Before installation, we should clean surface of ball mill.

  1. Installation should begin from the side walls installed with rectangle bricks totally and then adopt a certain number of rectangle half bricks to install matched. The gap between lining bricks should be less than 1.5mm. The installation of side walls should use rectangle bricks and rectangle half bricks only.
  2. After installing two side walls, then install round walls, which should adopt rectangle bricks and trapezoidal bricks. Make sure the bottom of lining bricks to contact tightly to the round walls, meanwhile use rectangle half brick and trapezoidal half bricks liner to match.
  3. Specific installation steps are as following: Please install rectangle bricks first, then install trapezoidal bricks, at the last line, if the straight bricks can’t be inserted, then install fake bricks, whose gap is sealed tightly by white cement / glue. Please let the workers install flexibly according to specific size of ball mill.

Maintenance:

After the installation is finished, we should maintain according to the following steps:

  1. Dry the ball mill naturally for two days and put pour full water into the ball mill for 3 days, then take the water out and naturally dry 7 days at least.
  2. After drying 7 days, pour water (occupying 70% of volume of ball mill) into ball mill, then charge alumina ball (occupying 60% of ball mill) and move ball mill for grinding 3 hours. Then move the ball mill the second time for grinding 1.5 hours. After 3 to 4 days, the ball mill could be normally operated.
  3. In winter, new installed ball mill should be heated for two days. On the first day, heat the ball mill by electronic stove for 24 hours, then move the mill and heat the other side for 24 hours. After that, maintain the ball mill as the steps of above mentioned.
alumina bricks lining installation guide

alumina bricks lining installation guide

Type A: Correct installation, with trapezoid brick and rectangle brick combined correctly.

Type B: Correct installation, with only trapezoid brick applied.

Type C: Wrong installation.

Cement: Regular white Portland cement is suggested, if need corrosion resistant, then special cement is required.

Mill linings alumina brick types available: rectangle brick, trapezoid brick, flake brick, half-rectangle brick and half-trapezoid brick.

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Aluminum oxide powder for alumina balls

Our factory, HuaMing Alumina Technology, making alumina balls with high quality, calcined fine powder of calcined alumina from Chalco, Shandong Company.

Brief introduction of Chalco.

“Aluminum Corporation of China Limited (CHALCO) was established as a joint stock limited company in the People’s Republic of China on September 10, 2001 by way of promotion by Aluminum Corporation of China (CHINALCO), Guangxi Investment (Group) Co., Ltd. and Guizhou Provincial Materials Development and Investment Corporation. It was listed on the New York Stock Exchange, Inc. and the Hong Kong Stock Exchange on December 11 and 12, 2001, respectively (stock code: Hong Kong: 2600, New York: ACH). CHALCO stock is listed in the Hong Kong Hang Seng Composite Index, FTSE Index and USX China Index. CHALCO is China’s largest alumina and primary aluminum producer and the world’s second largest alumina producer. CHINALCO is the controlling shareholder of the company. China Cinda Asset Management Corporation, China Orient Asset Management Corporation, China Development Bank and China Construction Bank are holders of the domestic shares of the company.”

Quoted from: http://www.chalco.com.cn/zlgfen/gywm/gsjj/A030101web_1.htm

Technical data sheet of Chalco alumina powder

Aluminum-Oxide-powder

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High alumina grinding bodies (balls) for Cement industry

High alumina, ceramic grinding bodies (balls), the new non-metallic grinding body is a revolutionary innovation of cement mill grinding material and grinding technology. It has changed the status quo of long-term cement mill to rely on metal grinding materials, which can effectively reduce the power consumption of cement grinding system and save cement production cost. Reduce the chromium content in the cement.

The traditional non-metallic grinding body is used for cement, slag grinding, the widespread existence of low grinding efficiency, high wear loss, fragmentation, low yield of grinding mill, so grinding cement, slag ball mill is still widely used metal grinding media. However, the new non-metallic grinding body is a revolutionary innovation of the cement mill grinding material and grinding technology, changing the status of cement grinding machine for a long time to rely on metal grinding materials, it can effectively reduce the cement grinding system power consumption, saving cement production costs , and reducing the chromium content in the cement. As we all know, cement ball mill is key equipment of cement clinker, gypsum, mixed materials such as crushing the preparation of cement . When the ball mill cylinder rotation, the grinding body due to inertia and centrifugal force, the role of friction, was brought to a certain height, relying on the role of gravity and drop, the cylinder material crushed, in order to achieve cement grinding. Grinding body is generally steel or steel forging, and according to different diameter and a certain proportion into the warehouse.

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high alumina grinding bodies (balls)

high alumina grinding bodies (balls)

The new nonmetal gridning body (high alumina grinding balls)  is characterized by the combination of cement ball mill. Through the movement trajectory and energy change law of the grinding body, the critical threshold of the grinding body is calculated by using the higher algorithm, and the force boundary condition is obtained for the grinding body The One of the core of this technology is the new special non-metallic grinding body material, by changing the non-metallic grinding material composition, element regulation, molding preparation technology and other modification technology, prepared for the cement mill conditions of the new special non-metallic Grinding body material. Compared with the traditional metal grinding materials, the advantages of alumina grinding balls are low specific weight, about1/2 of steel balls, and low wear loss rate, about 1/3 of the steel balls.

Kiln roof bricks

Kiln roof bricks, insulating firebricks, mullite cordierite bricks

Our kiln roof bricks are high temperature resistant, light mullite refractory bricks; mainly include HM26, HM28 and HM30 three series. The main performance of each series is as follows:

1. HM26 kiln roof bricks:
Working temperature: 1430℃
Bulk density: 800Kg / m3
Bending strength: 1.2MPa
Compressive strength: 2MPa
Performance: 1400 ℃ insulation 12 hours of re-burning line changes to -1%
Al2O3 Purity: ≥55%
2. HM28 kiln roof bricks:
Working temperature: 1540℃
Bulk density: 900Kg / m3
Bending strength: 1.6MPa
Compressive strength: 2.5MPa
Performance: reheating line of 1510 ℃ for 12 hours is changed to – 1%
Al2O3 Purity: ≥64%
Fe2O3 content: ≤0.7%
3. HM30 kiln roof bricks:
Working temperature: 1600℃
Bulk density: 1100Kg / m3
Bending strength: 2MPa
Compressive strength: 3MPa
Performance: 1550 ℃ holding 12 hours of re-burning line The change is -2%
Al2O3 Purity: ≥70%
Fe2O3 content: ≤0.6%.

kiln roof bricks

kiln roof bricks

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What is a ceramic roller?

What is a ceramic roller?

The ceramic roller is an elongated ceramic cylinder with openings at each end. Through the opening, connected the roller with bearing, thereby enhancing the transmission efficiency, and achieve gear transmission, make the ceramic roller rolls actively.

Ceramic Roller Introduction:

It is used in the glass ceramic industry in the roller kiln. The main role of ceramic roller is the transmission of ceramic or glass products, high temperature resistant, you need to often clean the roller surface. At present the mostly used ceramic roller is: corundum alumina ceramic roller.

ceramic rollers for roller kiln

ceramic rollers for roller kilnDefinition of ceramic roller:

The ceramic roller is a refractory product made of clay refractory raw materials and natural mineral raw materials through selection, crushing, forming and calcination. Ceramic roller as a refractory kiln, in the roller kiln and roller drying kiln in the support, the transmission of ceramic body and the role of the product is the core of the roller kiln parts. It has made important contributions to the energy saving of the roller kiln, the shortening of the firing cycle and the automation operation. It has been widely used in the fields of building sanitary ceramics, ceramics for daily use, electronic ceramics, magnetic materials, glass heat treatment and wear-resistant devices.

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Silicon carbide kiln shelf board

What is silicon carbide kiln shelf board / plate?

Silicon carbide kiln shelf is a board / plate made of silicon carbide with a certain size, the silicon carbide board is used to burn ceramics, the ceramics were being fired on the above of silicon carbide kiln shelf board/plate. It is high temperature resistant, usually the color is black.

Our silicon carbide kiln shelf plates are produced by use of the high-quality, high-purity silicon carbide powder with ultra-fine, high temperature bonding agent, molded and pressed by high tonnage hydraulic or vibration molding machine then drying and firing at high temperature in our shuttle kiln. We have a variety of sizes of silicon carbide kiln shelf products, and the silicon carbide plates have the advantages of high hardness, High thermal conductivity, anti-oxidation, high temperature creep; thermal shock performance is stable, excellent wear resistance, no residue, long service life. Products appearance is smooth, high density, with good thermal conductivity, energy saving. Our products are widely used in a variety of tunnel kiln, shuttle kiln, push plate kiln production of industrial ceramics, refractories, powder metallurgy, magnetic materials, ceramics for daily use, sanitary ceramics, art ceramics, porcelain, grinding wheel, glass.

sic board/plate package

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60mm alumina grinding ball

92% alumina purity, 60mm balls

92% alumina purity, 60mm balls

This alumina balls is formed by iso-static press balling machine. The main content of the alumina ball is α aluminum oxide and the purity is above 92% alumina, so it is also named as high alumina balls. The alumina balls are fired in the tunnel kiln wiht a high temperature of 1450 ℃.

Alumina ceramic ball is used for ball mill, tank mill, vibration mill and other fine grinding equipment as grinding body. Grinding ceramic ball with high hardness, high density, good corrosion resistance, etc., its crushing efficiency and wear resistance is much better than ordinary stone or natural pebbles, ceramics, glass, enamel, paint, chemical and other industries widely used.

Alumina Grinding Balls are widely used in different types of ceramics, enamels, glass, and thick and hard materials for chemical plants due to their high levels of alumina, high density, high hardness and high abrasion resistance.

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