Remanufactured fuly mechanized mining supports refer to the process of systematically detecling,repairing, upgrading, and transforming obsolete or decommissiomed fuly mechanized miing suppats to restore or exced their orainal peroumance siandards. This prpcess combines the concent of a green cireular ecomy with acvanced manufaciuing technclogies, aimig to extend the itespan ofthe eouiomen, reduce producion cosis. and miimize resourcNaSfe
The remanufacturing process includes
1.Recycing and assessment: Recvcling obsolete fuly mechanized mining supports, conducting preiminary monitoring and classification, evaluating theremaining lifespan and repairability of the core structural components, and determining the feasibility of remanufacturing

2.Dismanting and cleaning: Completely dismanting the supports, removing rust, ol stains, and damaged components, and thoroughly cleaning the partssing technologies such as high-pressure water jet and ultrasonic cleaning

3.Detection and repair. Using technologies such as magnetic particle flaw detection, ultrasonic testing, and three-dimensional scaning to detect cracksdefomations, and wear of the structural components. For key core components such as hydrauic columns, jacks, and valve groups,repair or replacement icaried out by means of laser cladding, honing, electroplating, etc. For pins, ear seais, etc. with excessive wear,technologies such as laser cladaing and thermal spraying are used to restore the original dimensions or replace them with new parts

4.Structural strengthening: Conducting repair welding or additive manufacturing repair on load-bearing components such as the roof beam and the shieldbeam to enhance the compression resistance and impact resistance.

5.Technological upgrading: Updating the electro-hydrauic control system, adoping inteligent electro-hydrauic valve groups to achieve remote contrcand autometed oneratin instaling sensars and inteareling iteet ofThinns modues to achieve rea-time montoung ofthe sunnot status and taut waminOptimizing the structural desian of the support to improve its adaptability to complex geological conditions

6.Assembly and testing: Reassembling the supports in stict accordance with the standards of new machines to ensure that the performance meets or ex.eeds the oramaltactor standardshe advantages of remanufactured fully mechanized minina supports

1.Economic eficiency: The cost is only 409-60%6 of that of new supports, significantly reducing the equipment investment of coal mining enterprises2 -nuonmental proiecion' Becuena the consumntion ot sieel and the envronmental poluion causec oy the treatmen ot ohsnlete eawinment woich iin line with the development requirements of areen mine

3.Technological improvement: integrating the latest inteligent technologies to improve the automation level and safety of the supports.

4.>nort delwery cvcle: ihe remanuracturng cvcle o2-3 montns is shorer than te oroducton cvcle otnew eauipment which is 3-6 monins acceleraitinethe equipment renewal speeo

Application scenarios:

Suitable for the renewal of eauipment in old mines and the demand for cost reduction and eficiency improyement in small and medium-sized coal minesFor minina areas with large changes in coal seam thicnditions, the adaptability can be improved through customized remanufacturinand transformation.lt helps coal mining enterprises achieve thee dual carbon target and promotes the circular economic modeRemanufactured fuly mechanized mining suppors are an important direction for the green and intelilent transfomation of coal mining ecuioment. Thecan not only relieve the resource oressure but also promote the sustainable develooment of the industnv, with sioniicant economic. socia. and envronmentbenefits.