SU784915A1

SU784915A1 - Rubber lining for classifier helices

Info

Publication number: SU784915A1
Application number: SU782667549A
Authority: SU
Inventors: Анатолий Черменович Баскаев; Николай Семенович Пенкин
Original assignee: Ставропольский политехнический институт
Priority date: 1978-09-26
Filing date: 1978-09-26
Publication date: 1980-12-07

Description

Изобретение относится к технике разделения твердых материалов по крупности и может быть использовано на горнообогатительных Фабриках и предприятиях строительных материалов, применяющих спиральные классификаторы для фракционирования, дешламации и обезвоживания рудных и нерудных noheвых ископаемых.The invention relates to techniques for the separation of solid materials by size and can be used in mining factories and enterprises of building materials using spiral classifiers for fractionation, deslamation and dehydration of ore and non-metallic mineral resources.

Известна резиновая футеровка спиралей классификатора, выполненная из набора футеровочных плит с круглыми пазами для шайбы и отверстиями в них для крепежных болтов, причем футеровочные плиты установлены консольно (1J.15 Недостаток данной резиновой футеровки заключается в низкой долговечности, т.к. крепление ее к ленте спирали с помощью круглых шайб и крепежных болтов выполняется только в 20 отдельных зонах (точках), что приводит к попаданию в промежутки между крепежными эонами абразивного материала, скрапа и вырыву футеровки из крепления.The rubber lining of classifier spirals is known, made of a set of lining plates with round grooves for the washer and holes in them for fixing bolts, the lining plates being installed cantilever (1J.15 The disadvantage of this rubber lining is its low durability, since it is attached to the tape spirals with round washers and fixing bolts are performed only in 20 separate zones (points), which leads to the abrasive material getting into the gaps between the mounting aeons, scrap and tearing the lining out of the fastening.

Наиболее близким техническим решением из известных по выполняемой функции и достигаемому результату является резиновая футеровка спирали классификатора, выполненная из набора 30 прилегающих консольно к ленте спирали 'футеровочных плит с клиновидным утолщением и очертаниями кольцевых секторов и крепежных продольных полосе от5 верстиями [2 ].The closest technical solution that is known for the function and the result achieved is a rubber lining of the classifier spiral made of a set of 30 lining plates cantilever to the spiral tape with wedge-shaped thickening and outlines of ring sectors and fastening longitudinal strip with 5 holes [2].

Такая конструкция плит резиновой футеровки позволяет устанавливать их на левую и правую спираль в один или несколько рядов и защищать от износа 10 ее наружную торцовую поверхность.This design of the plates of the rubber lining allows you to install them on the left and right spiral in one or more rows and protect its outer end surface from wear 10.

Однако подобная конструкция в целом не обеспечивает достаточно длитель ного срока службы футеровки из-за чрезмерно быстрого износа ее рабочей поверхности, продольных и поперечных · крепежных планок, находящихся в процес се эксплуатации под постоянным воздействием абразивной массы транспортируемого материала. При этом отверстия в планках для резиновых шипов уменьшают поверхность крепления, ослабляют сечение планки и тем самым создают дополнительные условия для ускоренного износа перемычек между отверстиями на планках и выхода их из строя, что снижает ее долговечность и надежность в работе.However, such a design as a whole does not provide a sufficiently long service life of the lining due to excessively fast wear of its working surface, longitudinal and transverse · fastening plates, which are in the process of operation under the constant influence of the abrasive mass of the transported material. At the same time, the holes in the strips for rubber studs reduce the mounting surface, weaken the cross-section of the strap and thereby create additional conditions for accelerated wear of the jumpers between the holes on the strips and their failure, which reduces its durability and reliability.

Цель изобретения — повышение долговечности работы футеровки и надежности крепления к линии спирали.The purpose of the invention is to increase the durability of the lining and the reliability of fastening to the spiral line.

Указанная цель достигается за счет того, что крепежная полоса выполнена в виде закладной детали длиной равной 1,2-1,4 расстояния между крепежными отверстиями и шириной равной 22,5 диаметра болта крепления и размещена во внутренней части футеровочной плиты, при этом в последней выполнены сквозные отверстия шестигранной формы выступающими в них опорными поверхностями в виде части крепежной полосы.This goal is achieved due to the fact that the mounting strip is made in the form of a embedded part with a length equal to 1.2-1.4 of the distance between the mounting holes and a width equal to 22.5 of the diameter of the mounting bolt and is located in the inner part of the lining plate, while in the latter made through holes of a hexagonal shape protruding in them supporting surfaces in the form of part of the mounting strip.

На фиг. 1 прёдставлен общий вид футеровки; на фиг. 2 — сечение А-А на фиг. 1.In FIG. 1 presents a general view of the lining; in FIG. 2 is a section AA in FIG. 1.

Футеровка 1 (фиг.1) составлена из набора консольно прилегающих к ленте спирали 2 футеровочных плоских плит 15 с очертаниями кольцевых секторов, выполненных из стойкой к изнашиванию в абразивной массе резины. Резиновая футеровка 1 с полосами крепления 3 (фиг. 2), размещенными во внутренней 20 ее части, имеющая гладкую рабочую поверхность и специальные углубления под головки болтов.4 позволяет повысить долговечность футеровки в целом. Полоса крепления 3, расположенная во jj внутренней части футеровки и имеющая отверстия 5, при помощи болтов б при* жимает сектор футеровки 1 к ленте спирали 2, в результате чего между ними создается сила трения, препят- -ствующая сдвигу деталей 1 и 2 встыке и этим самым достигается жесткость соединения и надежность крепления ......The lining 1 (figure 1) is composed of a set of cantileverly adjacent to the tape spiral 2 lining flat plates 15 with the outlines of the annular sectors made of resistant to wear in the abrasive mass of rubber. Rubber lining 1 with fastening strips 3 (Fig. 2) located in its inner part 20, having a smooth working surface and special recesses under the bolt heads. 4 allows to increase the lining life as a whole. The fastening strip 3, located in the inner part of the lining jj and having holes 5, by means of bolts b * presses the lining sector 1 to the spiral tape 2, as a result of which a friction force is created between them, which prevents the parts 1 and 2 from moving up to the butt and this ensures the rigidity of the connection and the reliability of the fastening ......

футеровки.lining.

При установке резиновых плит во второй и последующий ряды использу- 35 ется та же крепежная планка, размещенная во внутренней части футеровки, а для защиты головок болтов от износа используются те же шестигранные сквозные отверстия, что упрощает конструк- 40 цию футеровки.When installing rubber plates in the second and subsequent rows, the same mounting plate is used, which is located in the inner part of the lining, and the same hexagonal through holes are used to protect the bolt heads from wear, which simplifies the design of the lining.

При работе классификатора транспортируемый абразивный материал воздействует на торцовую и переднюю (рабочую) поверхности. В связи с тем, что в предлагаемой конструкции на рабочей поверхности первого и последующих рядов футеровки отсутств/ют накладные крепеЖные пластины, а головки болтов утоплены, полностью в массив резины. Долговечность и надежность резиновой футеровки повышается.When the classifier is working, the transported abrasive material acts on the end and front (working) surfaces. Due to the fact that in the proposed design on the working surface of the first and subsequent rows of the lining there are no overhead fastening plates, and the bolt heads are recessed completely into the rubber array. The durability and reliability of the rubber lining is enhanced.

Claims

(54) RUBBER LAPE OF SPIRALS The invention relates to a technique for separating solid materials by size and can be used at ore-dressing factories and building materials enterprises using spiral classifiers for fractionation, declamation and desiccation of ore and non-metallic minerals. The known rubber lining of the classifier spirals is made of a set of lined plates with round slots for washers and holes in them for fixing bolts, the lining plates being mounted cantilever i The disadvantage of this rubber lining is low durability, since attaching it to the spiral tape using round washers and fixing bolts is performed only in separate zones (points), which leads to the release of abrasive scrap material into the gaps between the fastening zons1MI and tearing the lining from the mount. The closest technical solution known for the function performed and the result achieved is the rubber lining of the spiral of the classifier, made of a CLASSIFIER set adjacent the console to the tape of the spiral lining plates with wedge-shaped thickening and outlines of annular sectors and fastening longitudinal strips with holes 1 Taka design Rubber lining plates allow you to install them on the left and right helix in one or several rows and protect its outer end surface from wear. However, such a structure as a whole does not provide a sufficiently long service life of the lining due to the excessively rapid wear of its working surface, longitudinal and transverse fastening strips, which are in operation under the constant influence of the abrasive mass of the transported material. At the same time, the holes in the rubber studs reduce the fastening surface, weaken the cross section of the strip and thereby create additional conditions for accelerated wear of the jumpers between the holes on the slats and their release, which reduces its durability and reliability in operation. The purpose of the invention is to increase the durability of the lining and reliability of attachment to the helix line. Ukjähenna goal is achieved by the fact that the fastening strip is made in the form of a mortgage part with a length of 1.2-1.4 and the distance between the mounting holes and the ishrina of 22, 5 diameters of the mounting bolt and is located in the inner part of the lining plate, while in the last, the through-holes of the hexagonal shape are filled with protruding bearing surfaces in them as part of the fastening strip. In FIG. 1 shows a general view of the lining} in FIG. 2 is a cross section of L-A in FIG. 1. The lining 1 (Fig. 1) is composed of a set of 2 lining flat plates with the outlines of annular sectors made of wear-resistant rubber in the abrasive mass, which cantilever the tape helix. Rubber lining 1 with fastening strips 3 {FIG. 2) placed in its inner part, having a smooth working surface and special recesses (neither under the heads of bolts. 4) allows to increase the durability of the lining as a whole. Fastening band 3, located in the inner part of the lining and having holes 5, with the help of bolts presses the sector of the lining 1 to the tape of the helix 2, as a result of which a friction force is created between them, preventing the shear of the parts 1 and 2, and thus the joint stiffness and reliability of fastening the lining is achieved. the next row uses the same mounting plate, is located on the inside of the lining, and to protect the bolt heads from wear, use -Tis same hex hexagon holes, which simplifies the design of the lining. During the classifier operation, the abraded material being transported affects the front and front (working ) surfaces. Due to the fact that in the proposed design, on the working surface of the first and subsequent rows of lining there are no fixed supports (plates, and bolt heads are recessed, completely Siv rubber. The durability and reliability of the rubber lining increases. The invention The rubber lining of the spirals of the classifier is made of a set of adjacent cantilever to the spiral line of lining plates with a wedge-shaped thickening and outlines of ring sectors and fastening longitudinal strips with holes, so as to increase its durability and reliability of attachment to the tape the helix, the fastening strip is made in the form of a zaklschaya detail. The length is 1.2-1.4 times the distance between the mounting holes and the width is 2-2.5 times the diameter of the fastening bolt and is placed in the. the inner part of the lining plate, with the latter having through-shaped hexagonal holes with protruding supporting surfaces in them as part of a mounting flooring tile. 1 Sources of information taken into account. During examination 1..yinlng Congress Yournal, 1972, No. 6, p. 91.

2. USSR author's certificate according to the application 2517986/03, class B 07 B 1/46, 1977.