Dalam operasi perlombongan berskala besar, penghancur gyratory melaksanakan tugas kritikal penghancuran bijih utama dan secara berterusan memproses bijih bersaiz besar dan kekerasan tinggi. Thepelapik cekung dan manteldi dalam ruang penghancur sentiasa terdedah kepada hentaman, mampatan, dan haus kasar yang teruk. Hayat perkhidmatan mereka secara langsung mempengaruhi kestabilan peralatan, kekerapan penyelenggaraan dan keseluruhan kos operasi perlombongan.

Disebabkan oleh perbezaan kekerasan bijih, saiz suapan, beban peralatan dan keadaan pengeluaran, kawasan haus sebenar pelapik penghancur gyratory berbeza dari lombong ke lombong. Sesetengah operasi mengalami haus tertumpu di bahagian bawah pelapik cekung, manakala yang lain mungkin mengalami haus yang lebih teruk di bahagian tengah atau kawasan khusus lain. Oleh itu, peningkatan haus pelapik tidak boleh bergantung pada peningkatan bahan standard, tetapi memerlukan reka bentuk tersuai berdasarkan keadaan haus sebenar.

Berdasarkan keadaan operasi pelanggan, Industri Berat Haiti membangunkan aPelapik Cekung Penghancur Gyratory dengan teknologi tetulang tahan haus tertanam. Dengan menganalisis keadaan haus pelapik terpakai, bahan tahan haus berprestasi tinggi digunakan dengan tepat pada kawasan haus utama, meningkatkan rintangan haus pada kedudukan kritikal sambil mengawal kos peningkatan keseluruhan secara berkesan. Penyelesaian ini telah berjaya digunakan pada aPenghancur gyratory Metso PG50-65pada projek perlombongan domestik yang besar.

1. Masalah Peralatan Pelanggan: Kehausan Pelapik Setempat Mengakibatkan Kitaran Penggantian Pendek

Peralatan pelanggan beroperasi secara berterusan dalam persekitaran penghancuran bijih kekerasan tinggi. Penghancur gyratory berjalan di bawah beban yang tinggi untuk tempoh yang lama. Pemeriksaan pelapik asal yang digunakan menunjukkan bahawa haus tidak seragam di seluruh permukaan pelapik, tetapi tertumpu di kawasan haus tinggi tertentu.

1. Haus Teruk di Bahagian Bawah Pelapik Cekung

Selepas memasuki ruang penghancuran, sejumlah besar daya hentaman dan beban mampatan tertumpu di kawasan penghancuran bawah, menyebabkan bahagian bawah pelapik cekung mengalami keadaan berimpak tinggi dan lelasan tinggi yang berterusan.

Selepas operasi jangka panjang, kawasan ini mengalami:

· Kehausan dipercepatkan permukaan kerja;
· Pengurangan pesat dalam ketebalan pelapik tempatan;
· Perubahan dalam kelegaan ruang penghancur, menjejaskan kestabilan peralatan;
· Penggantian set pelapik lengkap sebelum mencapai had perkhidmatan keseluruhan.

2. Penggunaan Penuh Bahan Bertaraf Tinggi Menghasilkan Kos Tinggi

Penyelesaian tradisional selalunya menaik taraf keseluruhan set pelapik dengan menggunakan bahan gred tinggi, seperti aloi kromium tinggi atau bahan tahan haus termaju yang lain. Walau bagaimanapun, kawasan penghancur gyratory yang berbeza mengalami tahap kehausan yang berbeza. Penggunaan bahan premium di seluruh set pelapik membawa kepada kos bahan yang tidak diperlukan di kawasan haus rendah dan meningkatkan perbelanjaan pembelian dengan ketara.

Oleh itu, Haiti menyediakan penyelesaian peningkatan haus tersuai yang mengukuhkan zon haus sebenar sambil mengimbangi peningkatan hayat perkhidmatan dan kawalan kos.

2. Penyelesaian Naik Taraf Haus Haiti: Pelapik Cekung Penghancur Gyratory Tahan Haus Terbenam

Untuk menyelesaikan masalah haus pantas setempat pelanggan, Industri Berat Haiti tidak hanya meningkatkan gred bahan keseluruhan pelapik. Sebaliknya, syarikat menganalisis keadaan haus sebenar pelapik terpakai dan membangunkan apenyelesaian pelapik cekung penghancur gyratory tertanam tersuai.

Dengan mengenal pasti dengan tepat kawasan yang memerlukan tetulang dan menggunakan bahan tahan haus berprestasi tinggi hanya di tempat yang diperlukan, penyelesaian itu meningkatkan hayat perkhidmatan kawasan kritikal sambil mencapai keseimbangan optimum antara prestasi dan kos.

Penyelesaian ini telah berjaya digunakan padaPenghancur gyratory Metso PG50-65digunakan dalam projek perlombongan besar.

1. Tentukan Kawasan Tetulang Berdasarkan Keadaan Haus Sebenar

Pasukan teknikal Haiti mula-mula memeriksa dan menganalisis pelapik asal terpakai pelanggan, memfokuskan pada:

· Lokasi pemakaian pelapik sebenar;
· Wear severity in different areas;
· Remaining liner thickness;
· Main ore impact zones;
· Equipment operating load and production conditions.

Through actual data analysis, the customer's main wear area was identified as the lowest section of the concave liner.

Based on this analysis, Haitian applied embedded wear-resistant reinforcement specifically in this area instead of upgrading the entire liner set.

For different mining conditions, the embedded reinforcement area can also be customized according to actual wear patterns, including:

· Lower concave high-wear areas;
· Middle concave impact areas;
· Other localized severe wear zones.

This enables true condition-based customization.

2. Embedded Wear-Resistant Structure Improves Critical Area Performance

Haitian Heavy Industry integrates high-performance wear-resistant materials into the main wear zones of the concave liner, allowing reinforced areas to achieve higher wear resistance and impact resistance.

Compared with traditional full-material upgrades, this design provides several advantages:

· High-performance materials are concentrated in the actual wear zones;
· Avoids unnecessary material upgrades in low-wear areas;
· Reduces overall upgrade costs;
· Extends the overall service cycle of the liner.

At the same time, the mantle continues to use a suitable conventional wear-resistant material based on the operating conditions, achieving a better balance between performance and cost.

3. Optimized Material Selection Balances Wear Resistance and Impact Strength

Gyratory crusher liners must not only resist continuous abrasive wear but also withstand repeated impact from large and hard rocks.

Simply increasing hardness may reduce toughness, causing problems such as cracking and material spalling during long-term heavy-duty operation.

Therefore, Haitian Heavy Industry optimizes material selection based on:

· Ore hardness and composition;
· Equipment operating conditions;
· Wear characteristics of different areas;
· Actual production load.

Combined with advanced casting technology and heat treatment processes, the reinforced areas achieve:

· Excellent wear resistance;
· Stable impact resistance;
· Superior structural stability.

4. Customized Manufacturing and Full Quality Control

Based on the confirmed product solution, Haitian Heavy Industry designs molds and manufactures liners according to the customer's equipment model and liner structure.

During production, strict control is applied to:

· Alloy chemical composition;
· Casting process parameters;
· Heat treatment procedures;
· Product dimensional accuracy.

After production, finished products undergo:

· Dimension inspection;
· Hardness testing;
· Material composition analysis.

These processes ensure stable bonding between the embedded reinforcement area and the main liner body, meeting the requirements of continuous mining operations.

5. Actual Application Results: Service Life Increased by More Than 2 Times

Field application results demonstrate that Haitian's embedded wear-resistant concave liner solution effectively improved the customer's original problem of localized rapid wear.

According to actual project data:

· Original standard liners required replacement after processing approximately 2 juta tan bijih;

· After adopting Haitian's embedded wear-resistant solution, the liner completed approximately 4 million tons of crushing production before removal and inspection, while still maintaining remaining wear allowance;

· Based on current wear conditions, it is estimated that the liner can continue processing approximately 1 million additional tons of ore.

The overall service life increased to more than twice that of conventional liners.

6. Reduced Maintenance Costs and Improved Mining Efficiency

Compared with conventional high manganese steel liners, this solution increases product cost by approximately 20%–30%.

However, compared with full upgrades using high chromium alloys or titanium carbide-based materials, the embedded solution achieves a longer service life with a more reasonable investment.

By reducing liner replacement frequency, customers can effectively lower:

· Spare parts purchasing costs;
· Equipment downtime;
· Labor costs for maintenance;
· Production losses caused by shutdowns.

Ultimately, the solution improves equipment reliability and reduces overall mining operation costs.

3. Applicable Equipment and Product Range

Haitian Heavy Industry provides customized wear-resistant liner development and manufacturing services for major global gyratory crusher brands, including:

· Metso
· Sandvik
· FLSmidth

Core products include:

· Gyratory Crusher Concave Liner
· Gyratory Crusher Mantle
· Other gyratory crusher wear parts

Based on equipment models, ore characteristics, and actual liner wear conditions, Haitian provides customized solutions covering material optimization, structural design, and production manufacturing.

Ringkasan Projek

Wear improvement for gyratory crusher liners is not simply a matter of increasing material grade. An effective solution requires comprehensive consideration of actual wear conditions, equipment operating environment, material performance, and cost requirements.

Melaluiwear analysis, precise reinforcement, material optimization, and customized manufacturing, Haitian Heavy Industry provides mining customers with more suitable gyratory crusher wear solutions.

With embedded wear-resistant concave liner technology, Haitian improves the service life of critical wear areas while controlling upgrade costs, helping mining companies reduce maintenance downtime, improve equipment stability, and achieve long-term, efficient, and continuous production.