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板框式压滤机的结构

发布时间:2018-01-29 10:33作者:杭州益清过滤材料有限公司

板框压滤机由交替排列的滤板和滤框构成一组滤室。滤板的表面有沟槽,其凸出部位用以支撑滤布。滤框和滤板的边角上有通孔,组装后构成完整的通道,能通入悬浮液、洗涤水和引出滤液。板、框两侧各有把手支托在横梁上,由压紧装置压紧板、框。板、框之间的滤布起密封垫片的作用。由供料泵将悬浮液压入滤室,在滤布上形成滤渣,直至充满滤室。滤液穿过滤布并沿滤板沟槽流至板框边角通道,集中排出。过滤完毕,可通入清洗涤水洗涤滤渣。洗涤后,有时还通入压缩空气,除去剩余的洗涤液。随后打开压滤机卸除滤渣,清洗滤布,重新压紧板、框,开始下一工作循环。
The plate frame filter press consists of an alternate filter plate and a filter frame to form a group of filter chambers. The surface of the filter plate has grooves, and its protruding part is used to support the filter cloth. There is a hole on the edge angle of the filter frame and the filter plate, and the complete passage is formed after assembly, which can be put into the suspension, washing water and filtrate. Each side of the plate and the frame is supported on the beam, which is pressed by the pressing device to press the plate and the frame. The filter cloth between the plate and the frame plays the role of sealing gasket. The feed pump will suspend the hydraulic pressure into the filter chamber and form the filter residue on the filter cloth until the filter chamber is filled. The filtrate passes through the filter cloth and flows along the filter plate groove to the edge angle channel of the plate frame, and the filtrate is concentrated. After filtering, the cleaning filter slag can be put into cleaning polyester water. After washing, sometimes the compressed air is added and the remaining washing liquid is removed. Then the filter press is unloaded and the filter slag is removed, the filter cloth is cleaned, the plate and the frame are pressed again, and the next working cycle is started.
 
板框压滤机对于滤渣压缩性大或近于不可压缩的悬浮液都能适用。适合的悬浮液的固体颗粒浓度一般为10%以下,操作压力一般为0.3~0.6MPa,特殊的可达3MPa或更高。过滤面积可以随所用的板框数目增减。板框通常为正方形,滤框的内边长为320~2000mm,框厚为16~80mm,过滤面积为1~1200㎡。板与框用手动螺旋、电动螺旋和液压等方式压紧。板和框用木材、铸铁、铸钢、不锈钢、聚丙烯和橡胶等材料制造,石化五厂采用的是聚丙烯材质滤板。
The plate frame filter press can be applied to the large compressibility of the filter slag or near the incompressible suspension. The solid particle concentration of the suitable suspension is generally less than 10%, and the operating pressure is generally 0.3 ~ 0.6MPa, and it can be up to 3MPa or higher. The filter area can be increased and reduced with the number of plates and frames used. The frame is usually square, in the side of the filtering frame is 320 ~ 2000mm, 16 ~ 80mm thick box, the filter area is 1~1200 square meters. The plate and frame are pressed by manual spiral, electric spiral, and hydraulic pressure. The plate and frame are made of wood, cast iron, cast steel, stainless steel, polypropylene and rubber. The five plant of petrochemical works is used as filter plate of polypropylene.
 
板框式压滤机主要由止推板(固定滤板)、压紧板(活动滤板)、滤板和滤框、横梁(扁铁架)、过滤介质(滤布或滤纸等)、压紧装置、集液槽等组成,其中过滤介质和集液槽由用户自备,也可由供应商代配。
Frame type filter is mainly composed of a thrust plate (fixed plate), pressure plate (active filter plate), the filter plate and the filter frame, beam (flat iron), filtering medium (filter paper or cloth etc.), pressing device, collecting tank and other components, wherein the filter medium and the collecting tank owned by the user, can also be by generation with suppliers.
 
板框压滤机有手动压紧、机械压紧和液压压紧三种形式。手动压紧是螺旋千斤顶推动压紧板压紧;机械压紧是电动机配H型减速箱,经机架传动部件推动压紧板压紧;液压压紧是有液压站经机架上的液压缸部件推动压紧板压紧。两横梁把止推板和压紧装置连在一起构成机架,机架上压紧板与压紧装置连接,在止推板和压紧板之间依次交替排列着滤板和滤框,滤板和滤框之间夹着过滤介质;压紧装置推动压紧板,将所有滤板和滤框压紧在机架中,达到额定压紧力后,即可进行过滤。悬浮液从止推板上的进料孔进入各滤室(滤框与相邻滤板构成滤室),固体颗粒被过滤介质截留在滤室内,滤液则透过介质,由出液孔排出机外。五厂采用的是液压压紧形式。
The plate frame pressure filter has three forms: manual compression, mechanical pressure and hydraulic pressure.  Manual compression is screw jack to push the compression plate to compress; mechanical compaction is motor with H type reducer, through the rack drive parts to push the compression plate to compress; hydraulic pressure is hydraulic station through the hydraulic cylinder parts on the frame to push the compression plate to compress. Two beam the thrust plate and the pressing device together constitute the frame, a pressing plate and clamping device connected alternately arranged in the filter plate and the filter frame between the thrust plate and the pressing plate, a filter medium between the filter plate and the filter frame; pressing device push pressing plate, the filter plate and all the filter frame is pressed on the rack, reaches the rated pressure, can be filtered. The suspension enters the filter chamber from the feed hole on the thrust plate (the filter frame and the adjacent filter plate form the filter chamber), and the solid particles are trapped in the filter chamber by the filter medium, and the filtrate is discharged through the liquid outlet through the medium. The five factory adopts the hydraulic pressure form.
 
压滤机的出液有明流和暗流两种形式,滤液从每块滤板的出液孔直接排出机外的称明流式,明流式便于监视每块滤板的过滤情况,发现某滤板滤液不纯,即可关闭该板出液口;若各块滤板的滤液汇合从一条出液管道排出机外的则称暗流式,暗流式用于滤液易挥发或滤液对人体有害的悬浮液的过滤,五厂采用的是暗流。
Press the liquid flow and undercurrent in two forms, the filtrate from the liquid outlet hole of each filter plate directly discharged out of the machine according to the flow type, flow filtration for monitoring of each filter plate, a filter plate can filtrate impure, close the liquid outlet plate; if the filtrate of each filter plate converges from a liquid discharge pipe called undercurrent type machine of type undercurrent for suspension filtrate volatile or filtrate harmful filtering, five using the undercurrent plant.

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