Method and device for determining the flow rate of magnetic or ferromagnetic particles and use of said method and device
A technology of magnetic particles and ferromagnetic particles, which is used in determining the flow rate and device of magnetic particles or ferromagnetic particles and the application field of the device, which can solve the problem that the ratio of magnetic particles or ferromagnetic particles cannot be measured, and other particles cannot be distinguished. and other problems, to achieve the effect of cost saving and investment saving
Inactive Publication Date: 2013-04-10
SIEMENS AG
View PDF4 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
It is also not possible to measure the proportion of magnetic or ferromagnetic particles in the liquid volume and to distinguish other particles such as sand grains with these methods
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0034] figure 1 The device 1 shown in comprises a tubular control chamber 2 through which a suspension 3 containing magnetic or ferromagnetic particles flows. The control chamber 2 is surrounded by a measuring coil 4 which measures the magnetic flux in the area enclosed by the measuring coil 4 . Furthermore, the control chamber 2 is surrounded by a magnetic field generator in the form of a coil 5 (excitation coil), through which an excitation current flows, which generates a static magnetic field in the control chamber. The number of windings of the coil 5 and the current flowing through the coil 5 are selected such that the magnetic field H in the interior of the coil 5 is sufficiently large in order to magnetize the ferromagnetic particles contained in the suspension 3 to a defined value. The ferromagnetic particles are magnetized by the static magnetic field generated by the coil 5, thereby creating an additional magnetic flux B M , using the measuring coil 4 and the meas...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a method and a device for determining the flow rate of magnetic or ferromagnetic particles (8) in a suspension (3) that flows through control chambers. The magnetic flux F1 is measured as a function of time t using a measuring coil (4) that surrounds a first control chamber (2), the magnetic flux representing a measurement, at a particular time, of the quantity of magnetic particles (8) contained in the suspension (3). In a second control chamber, at a predetermined distance d from the first control chamber (2), the magnetic flux F2 is measured as a function of time t using a second measuring coil (4') that surrounds the second control chamber (2') and the measurements F1 (t) and F2 (t) are compared to produce a temporal distance delta t which is used together with the predetermined distance d to calculate the flow rate. The method according to the invention and the device can be used in an ore mining installation.
Description
technical field [0001] The invention relates to a method and a device for determining the flow rate of magnetic or ferromagnetic particles in a suspension flowing through a control chamber. Measurement of the magnetic flux Φ as a function of time t by means of measuring coils around the first control chamber 1 , where the magnetic flux at a point in time characterizes the measure of the amount of magnetic particles contained in the suspension. The magnetic flux Φ as a function of time t is measured in a second control chamber arranged at a predetermined distance d from the first control chamber by means of a second measuring coil surrounding the second control chamber 2 . Furthermore, the invention relates to a use of the method and the device according to the invention. Background technique [0002] Magnetic or ferromagnetic particles are of great importance in a number of technical processes, for example in medical diagnostic procedures where they are used to label cell...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G01F1/708G01F1/74G16Z99/00
CPCG01F1/708G01F1/74G16Z99/00G01P5/08
Inventor 弗拉迪米尔·达诺夫赫尔穆特·埃克特维尔纳·哈特曼曼弗雷德·鲁伊里格安德烈亚斯·施勒特尔罗兰·韦斯
Owner SIEMENS AG