At the beginning of the visit, both sides had a brief discussion. The customers were then guided to the production workshop. In the workshop, our technical staff explained the core advantages of the silica bricks for glass kilns in simple language, using physical samples—made from high-purity silica with a silica content of no less than 96%, manufactured through precise processes, with a load softening temperature as high as 1640-1680℃. It exhibits volume stability at high temperatures and excellent resistance to acidic slag erosion. It is perfectly suited to the needs of critical components such as the kiln roof and tank walls of glass kilns.

The customers carefully examined the silica brick production process, inquiring in detail about raw material selection, firing control, and other aspects. We patiently answered their questions and displayed the density test report of the silica bricks, proving that the product’s true density is less than 2.35g/cm³, meeting high-quality standards. The client frequently stopped to observe and record product details with their mobile phone, expressing high praise for our factory’s rigorous quality control and advanced production equipment.

At the end of the visit, both parties exchanged views in the conference room. We introduced our product customization capabilities and case studies. The client stated that the visit provided a direct understanding of the quality and strength of our silica bricks, which perfectly suited their glass kiln production needs, and they looked forward to further cooperation. We also expressed our sincerity in supporting our Vietnamese client’s development with high-quality products and professional services, successfully concluding the visit.

Vietnamese customers visit our factory to inspect silica bricks for glass kilns最先出现在Ruitailianxin。

The rotary kiln firing zone operates at temperatures as high as 1700-1800℃, enduring high-temperature erosion, chemical corrosion, and thermal stress. Repair materials must possess high-temperature resistance, corrosion resistance, and ease of application. The main types are shaped and unshaped, suitable for different repair scenarios.

Shaped repair materials primarily consist of magnesia-iron spinel bricks and magnesia-alumina spinel bricks. The former has strong resistance to clinker melt penetration and is environmentally friendly and chromium-free, making it the first choice for medium and large kilns. The latter has excellent resistance to alkaline corrosion, suitable for alkaline conditions. Directly bonded magnesia bricks have high density and sufficient strength, suitable for localized repairs of the firing zone’s normalizing point, replacing traditional magnesia-chrome bricks and addressing environmental issues.

Unshaped materials are suitable for complex damaged areas. High-purity magnesium aluminum spinel castables are easy to apply, have good thermal shock resistance, and are suitable for large-area repairs. PA80 mullite castables harden quickly and are suitable for emergency repairs. Dolomite bricks can be used for repairs in high-sulfur conditions, but moisture-proofing is necessary. Selection should be based on the degree of damage and the characteristics of the operating conditions, prioritizing environmentally friendly materials to ensure stable kiln operation after repair.

Currently, our technical staff are communicating with the client, who has shown strong interest. We look forward to cooperating with them.

Nigerian customer inquired about repairing rotary kiln firing zone最先出现在Ruitailianxin。

Subsequently, the customer held a video conference with us, requesting to visit our factory’s manufacturing process and show us the finished products. The customer toured our raw material workshop, production workshop, and finished product workshop via video. Seeing the rows of modern production lines, high-quality refractory bricks, and unshaped refractory materials, the customer expressed their approval of our factory’s capabilities. Finally, our technical staff and the customer discussed the specific production and applications of the spray coating.

Spray coating is a type of unshaped refractory material, a refractory mixture used for patching or spraying with a spray gun. According to the patching method, it can be divided into wet patching (or slurry patching), semi-dry patching, and pyrometallurgical (flame) patching. Wet patching uses compressed air to spray a slurry containing 20-40% refractory powder, achieving high dispersion, high adhesion, and allowing for relatively uniform thin-layer patching. Semi-dry spraying involves wetting the refractory powder, which is then sprayed by compressed air, with water added at the nozzle. The water content is 11-14%, resulting in a lower adhesion rate but allowing for thicker layers. Pyroblasting, a type of dry spraying, involves delivering the spraying material into the flame of a fuel-oxygen spray gun. The material partially melts and adheres to the brick lining within the flame.

We look forward to finalizing our cooperation with our clients.

Customer in Uzbekistan needs magnesium-chromium spray coating最先出现在Ruitailianxin。

On March 14, we led our Indian client on a factory tour, showcasing our raw material workshop, production workshop, and finished product workshop for corundum bricks. Then The client showed great interest. And we worked together to advance our cooperation.

On March 15, we discussed the carbon black furnace lining design with the client. And The client was particularly interested in the dimensions and placement of high-zirconium bricks and corundum bricks. Based on the client’s drawings and requirements, we communicated and developed a carbon black furnace lining design. Then demonstrating the professionalism and strength of Henan Ruitai Lianxin Refractory Materials Co., Ltd.

Henan Ruitai Lianxin Refractory Materials Co., Ltd. is a modern enterprise integrating kiln R&D, sales, design and construction, waste refractory material recycling, refractory raw material sales, technology and commodity import and export, and technical services. The company possesses complete equipment, advanced technology, strong technical strength, rich management experience, excellent product quality, and a good corporate reputation. If you have any needs related to refractory materials, please contact us. We look forward to cooperating with you.

Indian Client Visit, Cooperation Successfully Completed最先出现在Ruitailianxin。

Converter repair requires selecting suitable refractory materials based on the damage mechanism of different parts, with magnesia as the core, while also considering erosion resistance, thermal shock resistance, and ease of application.

Magnesium-carbon thermal repair refractory is the most widely used large-area repair material. It uses magnesia and bitumen/resin as main raw materials and is suitable for repairing the charging side, furnace bottom, and tapping side. It utilizes the residual heat of the furnace to self-compact and bond tightly to the original lining, offering convenient application and a service life of 10-20 heats. Magnesia-silica aqueous environmentally friendly thermal repair refractory is an environmentally friendly alternative, using magnesia and silica fume as raw materials. It has high density and the longest service life, reaching 30-40 heats, but its application is limited by the application method.

Magnesia-based or magnesia-carbonaceous spray refractory is used for areas difficult to repair by self-flow, such as trunnions and furnace body rounded corners. Made from recalcined magnesia, it is sprayed using specialized equipment and hardens rapidly at high temperatures, effectively solving the problem of carbon oxidation damage in the trunnion area. Each application requires 0.4-0.8 tons, with a service life of 4-5 heats.

Magnesia-based grout is used for filling and repairing gaps during taphole replacement. Made from high-grade fused magnesia, it possesses high erosion and corrosion resistance, filling gaps in the taphole seat bricks and ensuring a stable seal in the taphole channel. Furthermore, magnesia-based hand-applied refractory is commonly used in the furnace hood area, spreading and solidifying with the help of furnace shaking. This adapts to the thermal shock and airflow erosion conditions of the furnace hood, repairing damaged areas of the furnace lining and extending furnace life.

Finally, the customer affirmed our solution, discussed the purchase of refractory materials with us, and both parties reached a satisfactory cooperation agreement.

UAE customers repaired converter最先出现在Ruitailianxin。

This converter adopts an advanced top-and-bottom blowing process. The furnace body is constructed of high-strength steel plates and lined with high-quality refractory materials. Relying on an intelligent control system, it can precisely control the smelting process, significantly improving steelmaking efficiency and molten steel quality. Simultaneously, it reduces energy consumption and pollutant emissions, aligning with the global trend of green metallurgy. The equipment balances practicality and stability, adapting to the local infrastructure and steel production needs of Uzbekistan. It can be widely used in carbon steel and alloy steel smelting, helping to address the local steel supply shortage.

To ensure the smooth shipment of the equipment, our factory established a dedicated team beforehand, strictly adhering to international standards to complete equipment testing, commissioning, and packaging, and tracking the entire logistics process to mitigate various risks during transportation. This collaboration not only showcases our factory’s technological strength and product competitiveness but also builds a bridge for exchange and cooperation between the metallurgical industries of China and Uzbekistan.

In the future, our factory will continue to deepen its research and development of metallurgical equipment, optimize product performance, and contribute to the high-quality development of Uzbekistan’s steel industry.

Ruitai converter shipped to Uzbekistan最先出现在Ruitailianxin。

At the end of December, the refractory materials arrived in Pakistan. In early January, the Ruitai Lianxin construction team departed for Pakistan to begin the reverberatory furnace construction project.

Upon arriving in a foreign country, the construction team faced multiple challenges: language barriers, climate differences, and rudimentary construction conditions. Team members overcame these difficulties, quickly integrated into the local community, and worked alongside their Pakistani colleagues. During the day, they were on-site, meticulously controlling key aspects such as the reverberatory furnace’s civil engineering foundation and equipment installation; at night, they discussed construction plans, optimized technical details, and worked tirelessly to overcome challenges such as equipment transportation.

We inherited the fighting spirit of Chinese builders, drew upon mature reverberatory furnace construction technology, strictly adhered to construction standards, and personally taught local employees operational skills, achieving technology sharing and mutual benefit. Throughout the construction period, regardless of the scorching heat or bitter cold, we remained steadfast at our posts, racing against time and ensuring quality. Our hard work fueled the project’s progress, and our professionalism safeguarded construction safety, vividly demonstrating our commitment to “not delaying a single day, not slacking off for a single day.”

During the Chinese New Year, the Ruitai Lianxin construction team remained on duty at their kiln construction site in Pakistan, unable to return home to reunite with their families. We hope our team can complete the reverberatory furnace construction project on time and to the required standard, allowing the client to put it into production as soon as possible, achieving a perfect collaboration with them.

Ruitai team traveled to pakistan to build reverberatory furnace最先出现在Ruitailianxin。

In October, a Pakistani client purchased a batch of corundum bricks and high-alumina bricks from our refractory materials plant for the construction of a rotary kiln and requested our kiln construction team to travel to Pakistan to assist in the kiln construction.

Recently, the refractory bricks requested by the client arrived in Pakistan. Our construction team completed comprehensive preparations, optimizing the construction plan based on Pakistan’s local climate conditions, construction specifications, and geological characteristics. They also ensured the availability of suitable professional equipment and protective materials before quickly arriving in Pakistan. Upon arrival, the team immediately began preliminary work such as site surveying and foundation layout, advancing the project with efficient execution.

During construction, the team strictly adhered to international engineering standards, upholding the principle of “meticulous workmanship and quality first,” implementing full-process quality control for key processes such as kiln body welding and support roller installation. Technical backbone personnel spearheaded efforts to overcome challenges such as equipment debugging and precision control during construction in high-temperature environments. They also actively shared their construction experience, encouraging local workers to participate in the project, achieving technological exchange and mutual benefit.

Currently, the project has entered the core component installation phase. The Ruitailianxin construction team is steadily advancing all tasks with enthusiasm and a rigorous attitude, demonstrating their professional competence and sense of responsibility.

Ruitailianxin kiln construction team travels to Pakistan to build rotary kiln最先出现在Ruitailianxin。

These magnesia chrome fire bricks are made from high-quality natural magnesia and chromite, sintered at high temperatures. They possess excellent properties such as high-temperature resistance, corrosion resistance, good thermal conductivity, and long service life, making them suitable for the high-temperature and highly corrosive industrial kiln operating environment in Iran. During the production process, Ruitailianxin strictly adhered to international quality standards and relevant Iranian industry regulations, ensuring product quality met standards through multiple inspection procedures, and all technical parameters met the customer’s customized requirements.

To ensure safe and efficient delivery, this shipment was transported by sea, with a professional freight forwarding team handling the entire process. Customs declaration, inspection, and other cross-border logistics procedures were completed in advance, and cargo packaging and loading specifications were clearly defined, effectively mitigating the risk of damage during transportation. Meanwhile, our factory has arranged a professional technical team to provide follow-up technical support, assisting the customer in completing product acceptance and construction guidance.

This export of magnesia chrome bricks to Iran not only recognizes the quality of our products but also further expands our cooperation opportunities in the Middle East market. In the future, we will continue to cultivate overseas markets, optimize our product system according to the industrial needs of different regions, and provide more targeted refractory material solutions.

Magnesia Chrome Bricks Shipped to Iran最先出现在Ruitailianxin。

On the afternoon of the 13th, after picking up the Egyptian customer from their hotel, we took him directly to our refractory materials factory for a tour. The client wanted to purchase sintered zirconia-corundum fire bricks and silica fire bricks for glass kilns. We led the client on a tour of our raw material workshop, production workshop, and finished product workshop. We also showed the client the casting process for sintered zirconia-corundum bricks. The client was impressed by our production scale and processes.

On the morning of the 14th, we met with the client again. The Egyptian customer expressed a need for us to design a glass kiln construction solution for them. Our kiln design team understood the client’s needs and requirements and quickly produced a draft kiln design solution. The client and our team discussed and revised the details of the design. Ultimately, the client was very satisfied with our design and refractory products. And immediately expressed their intention to cooperate with our factory.

This cooperation with the Egyptian client once again demonstrates the strength of our refractory materials factory and the trust of our client.

Henan Ruitai Lianxin Refractory Materials Co., Ltd is a modern R&D-centered refractory manufacturer manufacturing enterprise integrated with refractories sales and marketing, furnace engineering construction, recycling and sales of waste refractories as well as refractory raw material, technology and goods import and export, and technical services. Therefore, if you have any needs for refractory materials, please contact us and we will provide you with the best service.

A Visit from an Egyptian customer to Ruitai最先出现在Ruitailianxin。

By the end of September, the refractory fire bricks had arrived at the Uzbek client’s location. Simultaneously, Ruitai Lianxin’s construction team departed from Zhengzhou Airport and traveled to Uzbekistan as quickly as possible. Our construction team arrived in Uzbekistan in early October. After both parties finalized the kiln construction plan, the team began construction.

Our kiln construction team is highly experienced and possesses extensive knowledge of refractory materials. Each member has at least ten years of kiln construction experience. The team has assisted clients in designing and building kilns in countries such as India, Kazakhstan, Vietnam, Syria, South Korea, and the Czech Republic. Examples include reverberatory furnaces, converters, rotary kilns, incinerators, glass kilns, blast furnaces, and electric furnaces. Ruitai Lianxin’s team has received unanimous praise from our clients.

Construction of the rotary kiln is nearing completion. Once finished, the team will conduct refractory tests to ensure the kiln functions properly. We wish our Uzbek client a successful kiln construction and a speedy commissioning.

Ruitai Lianxin’s team traveled to Uzbekistan to build rotary kilns.最先出现在Ruitailianxin。

On the morning of October 16th, we met the Indian customer at the airport. He requested a direct tour of the factory.

After a brief discussion with the customer in the conference room, Mr. Zhou led him to the production workshop. Inside, the production lines were bustling with activity. Machines roared, the automated production lines operated smoothly, and workers, dressed in uniform, bustled about their posts. From raw material mixing and molding to high-temperature sintering, the operational procedures were clearly visible. Mr. Zhou highlighted the new intelligent sintering kiln we have introduced, which not only precisely controls temperature and time but also significantly reduces energy consumption. And the Indian customer observed the kiln’s operation closely, photographing key equipment details with his mobile phone and sharing his thoughts with colleagues.

Then they arrived products workshop. In the finished product workshop, a variety of refractory bricks, refractory castables, and other products were neatly arranged, labeled with product specifications, performance parameters, and applicable industries. The customer picked up a magnesia carbon refractory brick, weighed it, and praised its fine texture. A technician demonstrated the product’s high-temperature resistance test on-site, and the customer was amazed to see the bricks withstand the intense flames without any damage.

Afterward, both parties returned to the conference room for a summary discussion. The customer highly praised the factory’s standardized management, advanced production technology, and high-quality products. The customer asked specific needs and questions. And Mr. Zhou explained and answered them one by one. The customer signed the agreement on the spot and paid the deposit.

Indian Customers Visited Our Factory最先出现在Ruitailianxin。