China Products List
Daily maintenance suggestions for pulverized coal injectors (coal injection lances)
Negotiable
Category:Hardware & Tools/Cutting Power Tools/Spray Guns
Product Description:Daily Maintenance Recommendations for Pulverized Coal LancesTo extend the service life of lances and reduce abnormal damage, a sound daily inspection and maintenance mechanism needs to be established:Regular Visual Inspection: During each lance replacement or blast furnace shutdown, check the lance surface for signs of ablation, deformation, or wear. Pay special attention to whether the multi-hole at the lance tip is clogged or worn out, and promptly clear blockages or replace the lance tip.<img src="https://img-i-album.toocle.com/view/2025/09/10/b3/68c1247c23db3.jpg" style="max-width:100%;"/>Dimension Inspection: Regularly measure the wall thickness of key parts of the lance (especially the 500mm area at the front end). When the wall thickness is reduced to 1/2 of the design value, replace it in time to avoid sudden perforation.Installation Specifications: Ensure that the insertion depth and angle of the lance meet the process requirements, and the connection with the tuyere and ball valve is well sealed to avoid air leakage or airflow deflection.<img src="https://img-i-album.toocle.com/view/2025/09/10/23/68c12496ab323.jpg" style="max-width:100%;"/>Standardized Operation: Strictly follow the procedures for stopping coal injection, supplementary air supply, and lance withdrawal, and control the pressure adjustment speed during blast furnace shutdown/air resumption to avoid ablation caused by operational errors.System Linkage Inspection: Regularly check the stability of the pulverized coal conveying system (such as coal supply volume and airflow velocity) and the sealing performance of the ball valve to ensure that the working environment of the lance meets the process requirements and reduce the impact of system failures on the lance.
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Xiangye (Rizhao) Environmental Protection Equipment Co., Ltd
- Add:Chengdu Road, Development Zone, Rizhao City
- Zip: 276800
PQ-2000 Type Blast Furnace Pulverized Coal Lance (Classic and Practical Model)
Negotiable
Category:Hardware & Tools/Cutting Power Tools/Spray Guns
Product Description:Xiangye PQ-2000 Type Blast Furnace Pulverized Coal Lance (Classic and Practical Model) The PQ-2000 type is a practical lance developed for small and medium-sized blast furnaces, with core features of simple structure and convenient operation: 1. Structural Composition It consists of a lance barrel (main conveying channel), a lance head outer sleeve (protects the core components of the lance head), a multi-hole lance head (key atomization component) and a lance head cover (for fixing and sealing). The overall structure is compact, with low assembly and maintenance difficulty.<img src="https://img-i-album.toocle.com/view/2025/09/10/74/68c121944e374.jpg" style="max-width:100%;"/> 2. Core Working Principle Its core advantage lies in the design of the multi-hole lance head: multiple circular holes are evenly arranged on the lance head. When the pulverized coal airflow passes through, it is divided into multiple small streams, increasing the contact area with the hot blast of the blast furnace, achieving "rapid mixing and full combustion", effectively improving the utilization rate of pulverized coal and reducing the impact of unburned pulverized coal on the blast furnace conditions. 3. Operation Process • Start of Injection: Insert the lance into the straight blowing pipe of the blast furnace from the end with a bayonet, connect with the ball valve (lance check valve), and then start coal injection. The installation positioning is accurate and convenient. • Stop of Injection: After pulling out the lance, the elastic components in the ball valve (such as V-shaped metal shrapnel) automatically reset, pushing the conical piston plate to seal the channel, preventing the high-temperature gas and hot blast in the furnace from overflowing, and ensuring operational safety.<img src="https://img-i-album.toocle.com/view/2025/09/10/c4/68c121a4715c4.jpg" style="max-width:100%;"/>
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Xiangye (Rizhao) Environmental Protection Equipment Co., Ltd
- Add:Chengdu Road, Development Zone, Rizhao City
- Zip: 276800
Technical Characteristics, Operation and Maintenance, and Fault Analysis of Blast Furnace Pulverized Coal Lance (Coal Lance)
Negotiable
Category:Hardware & Tools/Cutting Power Tools/Spray Guns
Product Description:Technical Characteristics, Operation and Maintenance, and Fault Analysis of Blast Furnace Pulverized Coal LancesThe blast furnace pulverized coal lance is core equipment for realizing the blast furnace pulverized coal injection process. Its performance and stability directly determine the pulverized coal injection rate, pulverized coal combustion efficiency, and the continuity of blast furnace production. This article will provide a detailed explanation from aspects such as process characteristics, product types, operation and maintenance, and fault analysis.I. Core Value of Pulverized Coal LancesIn the blast furnace ironmaking process, stabilizing and increasing the pulverized coal injection rate is a key way to reduce the coke ratio, save energy, and control production costs. High-quality pulverized coal lances can not only extend their own service life, but also protect the tuyeres and reduce unplanned blast furnace shutdowns, providing core equipment support for realizing the advanced ironmaking processes of "high blast temperature, oxygen enrichment, and large-scale injection".II. Process Characteristics and Operational Characteristics of Pulverized Coal Lances(1) 2520 Heat-Resistant Steel Ceramic-Lined Lance (Mainstream High-Performance Model)This type of lance is designed for the harsh working conditions of high temperature and high wear in blast furnaces, and is currently a widely used high-performance lance. Its core advantages are reflected in material and structural innovations:1. Process CharacteristicsMain Body Material: The lance body is made of 2520 heat-resistant steel (i.e., 06Cr25Ni20 austenitic stainless steel), which has excellent high-temperature oxidation resistance (can withstand temperatures above 800°C for a long time) and corrosion resistance, adapting to the high-temperature environment in the blast furnace direct blowing pipe.Wear Resistance Enhancement: Adopts the "local ceramic lining on the inner wall of the steel pipe" process. Alumina or silicon carbide ceramics are lined in the lance head and front section areas where pulverized coal scouring is most severe, which improves the wear resistance by 3 to 5 times and greatly extends the overall service life of the lance.<img src="https://img-i-album.toocle.com/view/2025/09/10/83/68c120b2c5d83.jpg" style="max-width:100%;"/>2. Operational CharacteristicsLow Replacement Rate: The composite structure of heat-resistant steel and ceramic lining significantly reduces the risk of wear and burn damage, reduces downtime caused by frequent replacements, and eases the labor intensity of workers during disassembly and assembly.High Production Stability: The lance body has high strength and small deformation, can maintain a stable lance position and pulverized coal injection angle for a long time, avoids uneven injection caused by lance body bending, reduces the number of blast furnace shutdowns, and improves production efficiency.<img src="https://img-i-album.toocle.com/view/2025/09/10/f0/68c120c385ff0.jpg" style="max-width:100%;"/>Supports Large Injection Volume: The stable structure and wear resistance can adapt to the demand for high coal ratio injection, providing equipment guarantee for the blast furnace to achieve "replacing coke with coal" and directly reducing ironmaking costs.Repairability: For minor damage in non-core areas, it can be repaired through local welding, ceramic patching, etc., further extending the overall service life and reducing equipment investment costs.
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Xiangye (Rizhao) Environmental Protection Equipment Co., Ltd
- Add:Chengdu Road, Development Zone, Rizhao City
- Zip: 276800
Pulverized coal lance (pulverized coal lance for steel mill) Ф34X4
Negotiable
Category:Hardware & Tools/Cutting Power Tools/Spray Guns
Product Description:Xiangye Coal Lance (Steel Mill Pulverized Coal Lance) Ф34×4 Technical Analysis1. Product Specifications and StructureModel and Dimensions: Heat-resistant seamless steel pipe with outer diameter 34mm and wall thickness 4mm, suitable for blast furnace coal injection systems, length is customizable (common size is 1700mm).<img src="https://img-i-album.toocle.com/view/2025/10/23/95/68f98ba8ad795.jpg" style="max-width:100%;"/>Material: Made of 2520 heat-resistant steel (e.g., SUS310S), treated for wear resistance, with high-temperature oxidation resistance and resistance to pulverized coal erosion.Connection Method: Straight insertion or oblique insertion design, with insertion angle usually ranging from 12° to 14°, to avoid direct blowing of pulverized coal flow onto the tuyere.<img src="https://img-i-album.toocle.com/view/2025/10/23/24/68f98bb7e1124.jpg" style="max-width:100%;"/>2. Core Functions and AdvantagesCoal Injection Performance: Stably transports pulverized coal to the blast furnace tuyere, supporting large injection volume (e.g., 300kg per ton of iron), reducing ironmaking costs.Durability: Short heat-affected zone, not easy to deform, long service life and repairable, reducing the frequency of blast furnace shutdowns for maintenance.<img src="https://img-i-album.toocle.com/view/2025/10/23/10/68f98bdf2f910.jpg" style="max-width:100%;"/>3. Application ScenariosSuitable Systems: Specifically used for blast furnace coal injection in steel mills, needs to be matched with equipment such as pulverized coal distributors and ball valves.Operation Requirements: Insertion depth and angle need to be precisely controlled to avoid pulverized coal flow eroding the straight blowing pipe or tuyere.4. Manufacturer and Selection SuggestionsManufacturer: Xiangye Environmental Protection Equipment Co., Ltd., provides customized services (e.g., dual-tube design for oxygen-coal lances).Selection Key Points: Insertion method (straight insertion/oblique insertion) should be selected according to pulverized coal particle size, injection pressure and tuyere structure.If technical parameters or installation guidelines are needed, you can contact the manufacturer to obtain detailed documents.
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Xiangye (Rizhao) Environmental Protection Equipment Co., Ltd
- Add:Chengdu Road, Development Zone, Rizhao City
- Zip: 276800
Factory stamping die manufacturing, mold opening customization, and drawing-based customization.
Negotiable
Category:Hardware & Tools/Molds & Dies/Stamping Dies
Product Description:<img src="https://img-i-album.toocle.com/view/2023/03/03/5a/64018604a185a.png" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/03/77/640186051cb77.png" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/03/f1/64018605797f1.png" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/03/6e/64018605de16e.png" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/03/a8/640186064e8a8.png" style="max-width:100%;"/>
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Shenyang Longdi Electrical Equipment Co., Ltd.
- Add:Room 2, No. 68-2, Hongrun Road, Yuhong District, Shenyang City
- Zip: 110000
Customization of professional electronic stamping die processing molds
Negotiable
Category:Hardware & Tools/Molds & Dies/Stamping Dies
Product Description:<img src="https://img-i-album.toocle.com/view/2023/03/03/90/64018d437b990.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/03/2c/64018d43ece2c.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/03/08/64018d445e508.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/03/b0/64018d447e8b0.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/03/00/64018d44ebf00.jpg" style="max-width:100%;"/>
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Shenyang Longdi Electrical Equipment Co., Ltd.
- Add:Room 2, No. 68-2, Hongrun Road, Yuhong District, Shenyang City
- Zip: 110000
Single-stamping die processing, die repair, die customization
Negotiable
Category:Hardware & Tools/Molds & Dies/Stamping Dies
Product Description:<img src="https://img-i-album.toocle.com/view/2023/03/03/27/6401872a3d827.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/03/fe/6401872a89afe.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/03/53/6401872ae1953.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/03/9f/6401872b1869f.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/03/9c/6401872b80e9c.jpg" style="max-width:100%;"/>
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Shenyang Longdi Electrical Equipment Co., Ltd.
- Add:Room 2, No. 68-2, Hongrun Road, Yuhong District, Shenyang City
- Zip: 110000
Factory stamping die manufacturing, mold opening customization, and graphic customization.
Negotiable
Category:Hardware & Tools/Molds & Dies/Stamping Dies
Product Description:<img src="https://img-i-album.toocle.com/view/2023/03/07/a3/6406b0e1edfa3.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/07/56/6406b0e25a856.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/07/d5/6406b0e2c6ed5.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/07/b2/6406b0e3402b2.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/07/6a/6406b0e39ee6a.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/07/9c/6406b0ed9549c.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/07/b0/6406b0edeb3b0.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/07/ea/6406b0ee6b4ea.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/07/26/6406b0eed5c26.jpg" style="max-width:100%;"/>
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Shenyang Longdi Electrical Equipment Co., Ltd.
- Add:Room 2, No. 68-2, Hongrun Road, Yuhong District, Shenyang City
- Zip: 110000
Precision stainless steel stamping die processing, custom-made according to drawings.
Negotiable
Category:Hardware & Tools/Molds & Dies/Stamping Dies
Product Description:
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Shenyang Longdi Electrical Equipment Co., Ltd.
- Add:Room 2, No. 68-2, Hongrun Road, Yuhong District, Shenyang City
- Zip: 110000
Stamping die processing, customized die processing, die repair
Negotiable
Category:Hardware & Tools/Molds & Dies/Stamping Dies
Product Description:<img src="https://img-i-album.toocle.com/view/2023/03/08/27/6407dfc48ad27.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/08/9e/6407dfc4ef69e.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/08/32/6407dfc54f432.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/08/4d/6407dfc5b4d4d.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/08/03/6407dfc619903.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/08/23/6407dfd878923.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/08/3a/6407dfd8e5f3a.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/08/58/6407dfd961258.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/08/d2/6407dfd9c5bd2.jpg" style="max-width:100%;"/>
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Shenyang Longdi Electrical Equipment Co., Ltd.
- Add:Room 2, No. 68-2, Hongrun Road, Yuhong District, Shenyang City
- Zip: 110000
Custom processing of precision stamping dies for hardware metals
Negotiable
Category:Hardware & Tools/Molds & Dies/Stamping Dies
Product Description:<img src="https://img-i-album.toocle.com/view/2023/03/21/84/6419494e8f584.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/21/3b/6419494ede73b.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/21/d0/6419494f3e4d0.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/21/fc/6419494fb37fc.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/21/21/6419495014521.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/21/23/64194959b9823.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/21/da/6419495a2ddda.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/21/57/6419495a9a457.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/03/21/55/6419495b08c55.jpg" style="max-width:100%;"/>
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Shenyang Longdi Electrical Equipment Co., Ltd.
- Add:Room 2, No. 68-2, Hongrun Road, Yuhong District, Shenyang City
- Zip: 110000
Stainless steel stamping die processing, customizable with drawings.
Negotiable
Category:Hardware & Tools/Molds & Dies/Stamping Dies
Product Description:<img src="https://img-i-album.toocle.com/view/2023/04/17/e7/643cb68a456e7.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/17/18/643cb68aa0418.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/17/d7/643cb68aef5d7.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/17/c9/643cb68b560c9.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/17/44/643cb68bb2d44.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/17/78/643cb69bb3278.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/17/5a/643cb69c3435a.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/17/09/643cb69cdc309.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/17/1b/643cb69cf3a1b.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/17/ea/643cb69d74aea.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/17/9f/643cb6a19bb9f.jpg" style="max-width:100%;"/>
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Shenyang Longdi Electrical Equipment Co., Ltd.
- Add:Room 2, No. 68-2, Hongrun Road, Yuhong District, Shenyang City
- Zip: 110000
Stamping die processing and manufacturing, die design, die repair
Negotiable
Category:Hardware & Tools/Molds & Dies/Stamping Dies
Product Description:<img src="https://img-i-album.toocle.com/view/2023/04/26/f8/6448d2d5aaaf8.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/26/2d/6448d2d603b2d.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/26/a4/6448d2d6607a4.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/26/9a/6448d2d6b959a.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/26/ef/6448d2d70f6ef.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/26/ec/6448d2ef7c1ec.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/26/09/6448d2eff1509.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/26/4a/6448d2f07934a.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/26/d2/6448d2f0948d2.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/26/0e/6448d2f10cd0e.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/04/26/af/6448d2f9c48af.jpg" style="max-width:100%;"/>
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Shenyang Longdi Electrical Equipment Co., Ltd.
- Add:Room 2, No. 68-2, Hongrun Road, Yuhong District, Shenyang City
- Zip: 110000
Stamping die processing for metal hardware and stainless steel, customized according to drawings and samples.
Negotiable
Category:Hardware & Tools/Molds & Dies/Stamping Dies
Product Description:
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Shenyang Longdi Electrical Equipment Co., Ltd.
- Add:Room 2, No. 68-2, Hongrun Road, Yuhong District, Shenyang City
- Zip: 110000
Precision stamping die processing made of stainless steel
Negotiable
Category:Hardware & Tools/Molds & Dies/Stamping Dies
Product Description:
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Shenyang Longdi Electrical Equipment Co., Ltd.
- Add:Room 2, No. 68-2, Hongrun Road, Yuhong District, Shenyang City
- Zip: 110000
Precision machining of pure copper stamping parts, custom-made according to drawings.
Negotiable
Category:Hardware & Tools/Molds & Dies/Stamping Dies
Product Description:<img src="https://img-i-album.toocle.com/view/2023/05/17/1b/6464459b3c81b.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/05/17/b9/6464459badcb9.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/05/17/f6/6464459c260f6.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/05/17/f2/6464459c965f2.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/05/17/0f/6464459d1190f.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/05/17/af/646445ad065af.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/05/17/a6/646445ad670a6.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/05/17/c4/646445add46c4.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/05/17/06/646445ade6006.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/05/17/ba/646445ae42eba.jpg" style="max-width:100%;"/><img src="https://img-i-album.toocle.com/view/2023/05/17/99/646445b880999.jpg" style="max-width:100%;"/>
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Shenyang Longdi Electrical Equipment Co., Ltd.
- Add:Room 2, No. 68-2, Hongrun Road, Yuhong District, Shenyang City
- Zip: 110000