Converter slag retaining mechanism

Product Details

At present, the slag-stopping ball and slag-stopping stopper (bar) used in converter slag-stopping can not effectively block the slag in the early stage of converter steelmaking, and a large amount of steel slag enters the ladle, which brings harm to the off-furnace refining process. The return of phosphorus and sulfur makes it difficult to control the element in molten steel within the ideal range. Through the use of the slag retaining mechanism of the converter, the steel slag is effectively recovered in the furnace, and the slag splashing process is used to increase the furnace life of the converter, so as to solve the headache problem caused by the irregular erosion of the steel outlet. Adopting the new process of slag control and steel extraction to improve the yield of alloy can greatly save the amount of aluminum, reduce the cost significantly, and improve the economic benefit and the competitiveness of the product in the market.  
Converter slag retaining mechanism

Converter slag retaining mechanism consists of a base, a support, a fixed part, a sliding frame, a spring component, etc. The upper slide gate plate brick is fixed in the base frame, and the lower slide gate plate brick and the lower nozzle brick are fixed in the sliding frame. The sliding frame can be reciprocated in the support through the slideway, and the moving interface establishes constant and uniform interface pressure through the spring assembly. The hydraulic cylinder of the power source drives the sliding frame to reciprocate through the driving component to realize the flow control and slag retaining of the molten steel.

Converter slag retaining mechanism

The sliding nozzle control mechanism is composed of a base, a support, a slide block, a spring box, a pressing elbow, the upper nozzle brick, the upper slide gate plate brick, the lower nozzle brick and the lower slide gate plate brick. The pressing and loosening of the upper slide gate plate brick and the lower slide gate plate brick are controlled by the spring box mechanism. Because the layout of the spring box is reasonable, it is less affected by high temperature, the elasticity is long, not easy to loose, easy to use, simple structure, small size, light weight, long service life and so on.

TypeConverter Capacity(t)Bore size
Slide Stroke(mm)Number of Springs(pcs)Surface Pressure(t)Overall Dimensions(mm)Refractories  replace formOverall size of silde gate plate(mm)
LMM-20150110-1302001291000x810x370On line510x275x50/72
LMM-301100-120140-15023014111030x820x370off line600x310x50/75
LMM-401150-220150-16026014131230x1020x420off line660x350x50/80
LMM-501more than 250160-1803001614.51700x1550x430off line705x350x50/80

Production equipment

We also equipped with world advanced facilities such as Laeis automatic hydraulic press HPF2500, Eirich R19 mixer, Shimadzu made XRF-1800 sequential X-Ray fluores-cence spectrometer, by focusing on product research and development and quality control.

Production Process

Additional Information

LMM GROUP has a prudent schedule and delivery system that enables us to manage large volumes of orders smoothly and on time. Since we have excellent connections with all major shipping lines, we are able to offer our customers the fastest connections and transit times to any destination around the world.

Delivery TimeImmediate
Port Of DispatchChina
Production Capacity2000 tons
Packaging DetailsWooden pallet packing
Payment TermsL/C (Letter of Credit),T/T (Bank Transfer),D/P,Other


The company strictly according to modern enterprise management requirements set up a perfectquality assurance system, and passed the ISO9001:2008 quality management system certification,ISO14001:2004 environmental management system certification, OHSAS18001:1999 occupationalhealth and safety management system certification.

Service Display

recommend suitable products according to the actual working conditions and needs of customers.It can also bedeveloped and designed according to needs, and customized services can be provided. During the epidemic, provide remote detection technical support

Strict quality control:
From raw materials, to the production process and befor eleaving the factory, all performance indicators arestrictly tested, and the professional QC team controls according to the process.

After-sales service:
Quality assurance and Resolution of any issues that arise

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LMM GROUP Established in 2007. Our production technology comes from Japanese Yotai. As an experienced and international player in the refractories industry. We have succeeded in expanding both the breadth of its product range and the depth of its services. From raw material selection, refractory portofio & optimization, installation & services & recycle of used refractories on site to further reduce client’s Opex & Capex in refractory consumption per ton steel output, meanwhile improve product quality of client.

Our Address: magnesia city, site area is 75258 mm2
Production Capacity: 80,000 Ton/Year
Employees: 240 persons



Dalian Office:
Building 8, Yintian South Park, Yida Chuntian, Ganjingzi District, Dalian 116000, China 
Shenyang Office:
Room 12-12 A4 Building YuZhou Square, Huannan Disruct, Shenyang City China
Tel: +86 84174804

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