RU2190477C1 - Gear to clean particles of mineral stock from surface impurities - Google Patents
Gear to clean particles of mineral stock from surface impurities Download PDFInfo
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- RU2190477C1 RU2190477C1 RU2001125486/03A RU2001125486A RU2190477C1 RU 2190477 C1 RU2190477 C1 RU 2190477C1 RU 2001125486/03 A RU2001125486/03 A RU 2001125486/03A RU 2001125486 A RU2001125486 A RU 2001125486A RU 2190477 C1 RU2190477 C1 RU 2190477C1
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- hydrocyclone
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Abstract
Description
Изобретение относится к технике обогащения минерального сырья, а именно к аппаратам для очистки минерального сырья от поверхностных примесей, в частности к удалению пленок окислов железа с поверхности зерен кварцевого песка, используемого в стекольной промышленности, удалению корок глинистых минералов с поверхности ильменита, удалению кимберлитовой породы с поверхности кристаллов алмазов, и может быть использовано в горной, химической, металлургической и других отраслях промышленности. The invention relates to a technique for the enrichment of mineral raw materials, and in particular to apparatus for cleaning mineral raw materials from surface impurities, in particular to removing films of iron oxides from the surface of quartz sand grains used in the glass industry, removing crusts of clay minerals from the surface of ilmenite, removing kimberlite rocks from surface of diamond crystals, and can be used in mining, chemical, metallurgical and other industries.
Известны устройства для обогащения и очистки минерального сырья от поверхностных примесей или конгломератов за счет дезинтеграции-оттирки материала о стенки разделяющей камеры центробежной силой, создаваемой импеллерами в последовательно расположенных блоках (а.с. СССР 1535629, кл. В 03 В 5/02, опубл. 15.01.90), или за счет ударного и ультразвукового воздействия на материал в барабанной мойке (а.с. СССР 1811899, кл. В 03 В 5/00, опубл. 30.04.93). Known devices for the enrichment and purification of mineral raw materials from surface impurities or conglomerates due to the disintegration-rubbing of the material on the walls of the separation chamber by centrifugal force created by impellers in successive blocks (AS USSR 1535629, class B 03 V 5/02, publ . 15.01.90), or due to the impact and ultrasonic impact on the material in a drum washing machine (a.s. USSR 1811899, class B 03 V 5/00, publ. 30.04.93).
Известна также технологическая линия для очистки частиц минерального сырья от поверхностных примесей, включающая дезинтегратор, устройство ультразвуковой очистки и гидроциклон для разделения пульпы (А.И.Шульгин и др. Акустическая технология в обогащении полезных ископаемых. /Под ред. B.C.Ямщикова. М.: Недра, 1987, с. 90-93). Also known is a production line for cleaning particles of mineral raw materials from surface impurities, including a disintegrator, an ultrasonic cleaning device and a hydrocyclone for separating pulp (A.I. Shulgin and others. Acoustic technology in mineral processing. / Ed. BC Yamschikova. M .: Nedra, 1987, pp. 90-93).
Недостатком этих устройств является их высокая энергоемкость и сложность конструкции. The disadvantage of these devices is their high energy intensity and design complexity.
Наиболее близким по технической сущности и достигаемому результату к заявленному устройству является цилиндро-конический гидроциклон, имеющий встроенный в приемное приспособление струйный насос (инжектор), в котором осуществляется дезинтеграция разделяемого зернистого материала, т.е. разрушение и оттирка наименее прочных поверхностных примесей, а также имеющий камеру дополнительной отмывки-доочистки материала (а.с. СССР 751441, кл. В 04 С 5/08, В 03 В 5/34, опубл. 30.07.80). The closest in technical essence and the achieved result to the claimed device is a cylinder-conical hydrocyclone having a jet pump (injector) integrated in the receiving device, in which the disintegration of the separated granular material is carried out, i.e. destruction and scouring of the least durable surface impurities, as well as having a chamber for additional washing-cleaning of the material (AS USSR 751441, class B 04 C 5/08, B 03 B 5/34, publ. 30.07.80).
Недостатком наиболее близкого аналога является низкая эффективность очистки сырья от поверхностных примесей. The disadvantage of the closest analogue is the low efficiency of cleaning raw materials from surface impurities.
Технический результат состоит в повышении эффективности очистки сырья от поверхностных примесей при упрощении конструкции устройства. The technical result consists in increasing the efficiency of cleaning raw materials from surface impurities while simplifying the design of the device.
Указанный технический результат достигается тем, что в известном устройстве для очистки частиц минерального сырья от поверхностных примесей, включающем гидроциклон, приемное приспособление, камеру очистки в виде камеры смешения струйного насоса, встроенного в приемное приспособление, для тангенциального ввода сырья в цилиндрическую часть гидроциклона, камеру доочистки, согласно изобретению камера доочистки выполнена в виде кольцевой камеры, соединенной патрубком тангенциального ввода с камерой смешения, размещена в цилиндрической части гидроциклона и образована кольцевой перегородкой, отделяющей цилиндрическую часть гидроциклона от его конической части, и патрубком, расположенным концентрично сливному патрубку гидроциклона. The specified technical result is achieved by the fact that in the known device for cleaning particles of mineral raw materials from surface impurities, including a hydrocyclone, a receiving device, a cleaning chamber in the form of a mixing chamber of a jet pump built into the receiving device, for tangential input of raw materials into the cylindrical part of the hydrocyclone, a treatment chamber , according to the invention, the after-treatment chamber is made in the form of an annular chamber connected by a tangential input pipe to the mixing chamber, placed in a cylindrical part of the hydrocyclone and is formed by an annular partition separating the cylindrical part of the hydrocyclone from its conical part, and a pipe located concentrically to the drain pipe of the hydrocyclone.
В данную совокупность включены признаки, каждый из которых необходим, а все вместе достаточны для достижения указанного технического результата. This set includes features, each of which is necessary, and all together are sufficient to achieve the specified technical result.
Устройство для очистки частиц минерального сырья от поверхностных примесей поясняется чертежом, на котором представлена его схема. A device for cleaning particles of mineral raw materials from surface impurities is illustrated in the drawing, which shows its diagram.
Устройство состоит из приемного приспособления 1, в придонную часть которого встроен струйный насос, содержащий струйную насадку 2 для подачи рабочего агента, эжекционный зазор 3 и камеру смешения 4, являющуюся камерой очистки. Камера доочистки 5 расположена в цилиндрической части 6 гидроциклона 7 и образована кольцевой перегородкой 8, отделяющей цилиндрическую часть 6 гидроциклона 7 от его конической части 9, наружной стенкой 10 цилиндрической части 6 гидроциклона 7 и патрубком 11, расположенным концентрично сливному патрубку 12 гидроциклона 7. Высота патрубка 11 должна обеспечивать необходимое для качественной доочистки частиц минерального сырья время нахождения их в кольцевой камере. The device consists of a receiving device 1, in the bottom part of which a jet pump is integrated, comprising a jet nozzle 2 for supplying a working agent, an ejection gap 3 and a mixing chamber 4, which is a cleaning chamber. The aftertreatment chamber 5 is located in the cylindrical part 6 of the hydrocyclone 7 and is formed by an annular partition 8 separating the cylindrical part 6 of the hydrocyclone 7 from its conical part 9, the outer wall 10 of the cylindrical part 6 of the hydrocyclone 7 and the pipe 11 located concentrically to the drain pipe 12 of the hydrocyclone 7. The height of the pipe 11 should provide the necessary time for high-quality treatment of particles of mineral raw materials while they are in the annular chamber.
Для создания вращающегося потока пульпы камера доочистки имеет тангенциальный ввод, выполненный в виде патрубка 13, соединенного с выходным патрубком камеры смешения 4. Патрубок 13 тангенциального ввода расположен непосредственно над кольцевой перегородкой 8. Коническая часть 9 гидроциклона 7 снабжена также и песковым патрубком 14 для вывода очищенных от примесей частиц минерального сырья. To create a rotating pulp stream, the aftertreatment chamber has a tangential input made in the form of a pipe 13 connected to the outlet pipe of the mixing chamber 4. The tangential input pipe 13 is located directly above the annular partition 8. The conical part 9 of the hydrocyclone 7 is also equipped with a sand pipe 14 for outputting cleaned from impurities of particles of mineral raw materials.
Устройство работает следующим образом. Приготовленную пульпу подают в приемное приспособление 1. В случае, если добыча минерального сырья ведется системами разработки с использованием средств гидромеханизации, например с гидромониторным размывом полезного ископаемого в добычном забое, то в приемное приспособление 1 может подаваться пульпа, полученная в результате размыва. В струйный насос подают под давлением рабочий агент - воздух или воду, который, выходя из струйной насадки 2 с большой скоростью, проходит в камеру смешения и всасывает (эжектирует) пульпу из приемного приспособления 1 через эжекционный зазор 3. The device operates as follows. The prepared pulp is fed to receiving device 1. If mineral extraction is carried out by development systems using hydromechanization means, for example, with hydraulic monitoring erosion of minerals in the mining face, then pulp resulting from erosion can be fed to receiving device 1. A working agent is supplied to the jet pump under pressure - air or water, which, leaving the jet nozzle 2 at high speed, passes into the mixing chamber and draws in (ejects) the pulp from the receiving device 1 through the ejection gap 3.
В камере смешения 4 в кавитационном режиме происходит первичное разрушение примесей за счет гидродинамического воздействия струи на частицы минерального сырья, соударения минеральных частиц и взаимного трения (оттирки) и их отделение от минеральных частиц. Далее пульпа за счет энергии, сообщенной струйным насосом, поступает для последующей обработки и окончательного разрушения поверхностных примесей в камеру доочистки 5. In the mixing chamber 4 in the cavitation mode, the primary destruction of impurities occurs due to the hydrodynamic effect of the jet on the particles of mineral raw materials, collision of mineral particles and mutual friction (scrubbing) and their separation from mineral particles. Next, the pulp due to the energy supplied by the jet pump, enters for subsequent processing and the final destruction of surface impurities in the after-treatment chamber 5.
В камере доочистки 5 образующийся кольцевой турбулентный поток вызывает трение (оттирку) частиц друг о друга и о стенки кольцевой камеры, что приводит к окончательному разрушению поверхностных примесей. Далее вращающийся поток пульпы по кольцевому зазору между сливным патрубком 12 и патрубком 11 поступает в коническую часть гидроциклона 7, где происходит разделение пульпы на частицы минерального сырья, очищенные от поверхностных примесей, которые выводятся из гидроциклона 7 через песковый патрубок 14, и примеси, которые выводятся из гидроциклона через сливной патрубок 12. In the after-treatment chamber 5, the generated annular turbulent flow causes friction (scuffing) of particles against each other and against the walls of the annular chamber, which leads to the final destruction of surface impurities. Next, the rotating pulp flow along the annular gap between the drain pipe 12 and pipe 11 enters the conical part of the hydrocyclone 7, where the pulp is divided into particles of mineral raw materials, purified from surface impurities that are removed from the hydrocyclone 7 through the sand pipe 14, and impurities that are removed from a hydrocyclone through a drain pipe 12.
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RU2001125486/03A RU2190477C1 (en) | 2001-09-18 | 2001-09-18 | Gear to clean particles of mineral stock from surface impurities |
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