SU564510A1

SU564510A1 - Instrument for measuring bulk materials repose slope angle

Info

Publication number: SU564510A1
Application number: SU7402084238A
Authority: SU
Inventors: Виктор Иванович Коновалов
Original assignee: Предприятие П/Я А-1928
Priority date: 1974-12-13
Filing date: 1974-12-13
Publication date: 1977-07-05

Description

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Изобретение .относитс к измерительной технике, а именно к приборам дл измере ВИЯ угла естественного откоса сыпучих материалов .The invention relates to a measurement technique, namely to devices for measuring the angle of incidence of the angle of repose of bulk materials.

Известны приборы дл измерени угла естественного откоса сыпучих, материалов, содержащие корпус с горизонтально расположенной площадкой, стационарно установленный на ней цилиндрический сосуд, ось которого перпендикул рна площадке, с непод важным дном-диском под испытуемый материал , размещенным внутри сосуда, и угло мер, установленный с возмо шостью поворота вокруг оси сосуда tl,.Instruments for measuring the angle of repose of loose materials are known, comprising a body with a horizontally spaced platform, a cylindrical vessel permanently mounted on it, the axis of which is perpendicular to the platform, with an unimportant bottom disk under the test material placed inside the vessel, and the angle set with the possibility of turning around the axis of the vessel tl ,.

Однако известные приборы обладают не- достаточной точностью, так как при ссыпа- НИИ испытуемого материала не удаетс получить иэ-за лавинного эффекта коническое тело правильной формы. Кроме того, на иэвестных приборах не представл етс возмож ным измерить угол естественного откоса предварительно уплотненных сыпучих материалов .However, the known devices have insufficient accuracy, since when the test material is dumped, it is not possible to obtain the conical body of the correct shape due to the avalanche effect. In addition, on known devices it is not possible to measure the angle of repose of pre-compacted bulk materials.

Целью насто щего изобретени вл етс повыщение точности измерени угла естест- The purpose of the present invention is to improve the accuracy of measuring the angle of natural

венного откоса сыпучих материалов, в том числе и предварительно уплотненных.venous bulk solids, including pre-compacted.

Указанна цель достигаетс тем, что дно-диск выполнено подвижным вдоль оси сосуда, а сам сосуд-съемным.This goal is achieved by the fact that the bottom disk is movable along the axis of the vessel, and the vessel itself is removable.

На чертеже показан прибор, в осевом разрезе.The drawing shows the device in axial section.

Прибор состоит из съемного сосуда 1, внутри которого расположен подвижной шток 2 с дном-диском 3, на верхнюю часть сосуда установлена втулка 4, на которой установлен угломер, -включающий в себ поворотный сектор 5 со шкалой и неподвижно закрепленный на втулке 4 указатель 6.The device consists of a removable vessel 1, inside of which there is a movable rod 2 with a bottom disk 3, a sleeve 4 is installed on the upper part of the vessel, on which a protractor is installed, including a rotating sector 5 with a scale and a fixed indicator 6 on the sleeve 4.

Сосуд 1 закреплен на горизонтально расположенной площадке 7 корпуса 8 так, что его ось перпендикул рна указанной площадке .The vessel 1 is fixed on a horizontally located platform 7 of the housing 8 so that its axis is perpendicular to the indicated platform.

Внутри корпуса 8 прибора размещен черв чно-винтовой механизм 9 дл осуществлени поступательного перемещени штока 2.Inside the housing 8 of the device is placed a screw-screw mechanism 9 for carrying out the translational movement of the rod 2.

Прибор работает следующим образом.The device works as follows.

Claims

When the stem 2 is lowered to the bottom disk 3, test material is poured. By means of a screw-screw mechanism cx, the lifting of the rod 2 leaves, and a conical body 10 of the test material is formed at the bottom disk 3, the angle of which measuring, rotating sector 5 until its edge coincides with the surface of the conical body, Yri turning sleeve 4 relative to the axis of the vessel 1 measures the angle on either side of the conical body 10. To measure the angle of the slope of the preliminarily compacted bulk materials 7 removed from the area it is poured into a test material | they are subjected to compaction and re-fastened on space 7. Later on, the above mentioned measurement operations are repeated. The invention The device for measuring the angle of repose of bulk materials, comprising a housing with a horizontal platform, a vessel stitched on it, the axis of which is perpendicular to the platform, with a small disk under the test material placed inside the vessel, and an inclinometer installed with the possibility of rotation around the axis vessel, characterized in that, in order to improve the accuracy of measurement of the angle of repose of bulk materials, including pre-compacted, the bottom-disk is made movable along the axis Oud, and the vessel is removable. Sources of information taken into account during the examination: 1, Yakovlev A, X, et al. Powder polymeric materials and coatings based on them L ,, Chem., 1971. 2, Larin M. I, and others. A device for determining the angle of repose of pigments. - Paintwork materials and their application, 1962, No. 3, p. 71