SU646239A1

SU646239A1 - Device for measuring moulding sand moisture-content

Info

Publication number: SU646239A1
Application number: SU752149306A
Authority: SU
Inventors: Зориан Оскарович Вайнштейн; Григорий Михайлович Гольдринг; Юлий Соломонович Гомельский; Владимир Лукич Деменко
Priority date: 1975-06-27
Filing date: 1975-06-27
Publication date: 1979-02-05

Description

электроайми, покрыта изол ционным материалом , нулевые электроды электриче ки соегшнены с бункером. Сущность изобретени по сн етс чертежом,о 6 бункере 1 установлен потенциальный электрод 2, изолированный от бункере , и ова нулевых электрода 3, элек трически соединенные с бункером. Высота электродов 2 и 3 одинакова и составл ет, примерно 5О% высоты бункера 1. Поверхнооть бункера 1, заклкн ченна между электродами 2 и 3, покрыта изол 1шонмым материалом 4. Клеммы 5 соедЁнс ш с потешиальным 2 и нулевыми 3 эдектродами. Силовые линии 6 электрического пол 6 распределены равномерно в значительной части npocTpettctBa между электродами 2 и 3. Устройство работает следующим обраатл . При подаслючении клемм 5 к из мерительному щшбору в йрбст{ анс тве между электродами 2и 3 возникает равномерное 8AeKt 4ecKoe поле. При попадании смеон в 1 тропами 2 и 3 протекает электрический ток, величина которого опреде шетс средним эйачеивем провощмости смеси Поскольку электрическое по е в простраксше между электродами 2 и 3 прак тически ра&Ш)Мер ов, кажфлй объемный 91 емент смеси, наховйщи&с в этом про странстве, в равней мере определ ет суммарную сревшою прово| мость сме646239Electricity, covered with insulating material, zero electrodes of electric equipment combined with a bunker. The invention is illustrated in the drawing, about 6 bunker 1 is installed potential electrode 2, isolated from the bunker, and ov zero electrode 3, electrically connected to the bunker. The height of electrodes 2 and 3 is the same and is approximately 5% of the height of the bunker 1. The surface of the bunker 1, closed between the electrodes 2 and 3, is covered with insulated material 4. Terminals 5 are connected with a slender 2 and zero 3 electrode. The power lines 6 of the electric field 6 are evenly distributed in a significant part of the npocTpettctBa between the electrodes 2 and 3. The device works as follows. When connecting terminals 5 to the measuring chamber, a uniform 8AeKt 4ecKoe field arises between the electrodes 2 and 3. If lumines get into 1 by paths 2 and 3, an electric current flows, the value of which is determined by the average efficiency of the mixture. Since the electric current in the prostrasch between electrodes 2 and 3 is almost equal to (r) measures, the volume of 91 mixture, is in this space, it equally defines the total amount of wire | bridge sme646239

Claims

-Wet SI, i.e., its average humidity. In the space between the electrodes 2 and 3, up to 20% of the total volume of the CmCi dose is found. Due to the high representativeness of the measured dose, an increase in the accuracy of measuring the average moisture of heterogeneous mixtures is achieved. DETAILED DESCRIPTION OF THE INVENTION A device for measuring the humidity of a moldable mixture containing a hopper for the test mixture, measuring electrodes. A circuit characterized by the fact that, in order to improve the accuracy of the measurement, an additional potential electrode inserted along the axis of the bunker was inserted into the device; the electrobe performed in the form of parallel plates fixed at equal distances from each other and from the walls of the bunker, the surface of the bunker, the prisoner between the electrodes is isolated, and the electrodes, besides the potential one, are electrically connected to the bunker. Sources of information taken into account in the examination. 1, Lit & Production, No. 10, 1961. Automatic adjustment of moisture by form of mixture. Spododich G. N. et al.

2. USSR author's certificate K 273489, cl. q 01 Y7 / 22. 1969.