The Engineering Report Of The One-step Needling Production Line For High-temperature Filter

With the increasingly stringent standards of smoke (powder) dust emissioned by national keyindustries, the market demand of high-temperature filter and the performance requirements ofproducts are increasing. In terms of environmental protection, energy saving and economicdevelopment, The market demand of high temperature filter material will continue to rising。The needling reinforcement material is achieved by needling machine which repeatedpunctures the fibres and makes fibres entangle together to form three-dimensional multi-layerfilter.The bore diameter of the filter is small and evenly distributed, and the air permeability is welland low resistance.what’s more, it’s multi-layer structure forms the complex channels, which caneasily capture the dust.the The needling reinforcement material is widely used in high temperaturefilter industry.This subject is under the background of the introduction of one-step needling production lineby Jiangsu Eastern filter bag Co. The main contents of this subject can be divided into: First,Through market research,analysis the domestic policy background of the project and combine withthe development of enterprise itself to determine the construction scheme of productionline.Second, design the routing and production equipments of various process sections, analysis theworking principle and the technological features of these equipments. Third, coordinate with thedomestic and foreign engineers to complete the installation and commissioning of the productionline. Fourth, test debugging products of the production line and analyze their performance. At thesame time, compare the different performance of the products achieved by one-step and tow-stepproduction lines under the same materials. Check that whether the quality of products meet theacceptance criteria or not.Through research and analysis of this subject, the main conclusions are as follows:(1) Determine the process routing of one-step needling production line. The production linecan produce1,000tons of needling filer one year with the weight CV value of pre-needled filter controlled within1.5%.(2) The equipment configuration of production line: SUEBO01B-0120(electronic weighing)bale opener, SUSBO01D-0150(nail plate) coarse opener, SUOBM01B-0220(large warehouses)cotton blender machine, SUCBO01A-0150(clothing style needling) fine opener, Autefa FillingCage, Chute Feeder,"WM2+2" carding and CL4002high-speed cross-lapper, FehrerNL9/S pre-needler loom, Happyway automatic detection system, Wuxi Autefa batting turner, Sanfai positiveneedler loom (transformed from the original pre-needler loom), SUUNP01A-0250reverse needllerloom, SUDNP02A-0250two needle area positive needller loom, SUUNP02A-0250two needle areareverse needller loom, SUENP01A-0250ectopic needller loom, New Wander winder. The totalinstalled power of the production line is about598.24kw. The production line is equipped withbatting turner, which can achieve one-step production.(3) The debugging of the line includes equipment debugging and process debugging.Equipment debugging includes the debugging of single equipment and the whole production line;process debugging includesteh the debugging of interior parameters of the control system andcommonly used parameters of external control system.(4) The net capacity of one-step neeedling production line at web-outlet area of the card ishigher than that of one-step neeedling production line.(5) One-step neeedling production line is more suitable for PPS fiber，which is more stable,andhas good uniformity. Compared with two-step neeedling production line, One-step neeedlingproduction line is more stable, reliable and has better uniformity of product.(6) The performance of debugging products from One-step neeedling production line meetsthe acceptance criteria and the line runs stably, which can be successfully put into production.