阅读说明：本技术 硅微粉高效除杂装置 (Efficient impurity removal device for silicon micropowder ) 是由 石祥祥 于 2019-11-30 设计创作，主要内容包括：一种硅微粉高效除杂装置,涉及碳化硅微粉生产设备技术领域,包括竖向设置的分离直管,在分离直管的中下部固定对接有除杂支管,除杂支管由对接处向下倾斜设置,在除杂支管上方的分离直管上设有偏向管段,偏向管段下端向外倾斜设置并与除杂支管固定相接,偏向管段在除杂支管进口正上方构成供磁性杂质偏向使用的偏向内腔,在偏向管段及偏向管段上方的分离直管内壁均固定设有若干上下排列设置的电磁吸盘,电磁吸盘间相配合构成偏向电磁场,偏向电磁场用于引导磁性杂质沿偏向内腔进入除杂支管,在分离直管顶端进口上固定设有布料头。本发明利用磁场偏导磁性杂质,其具有结构简单可靠、使用方便、制造和维护方便、除杂效率高等优点。(The utility model provides a high-efficient edulcoration device of silicon micropowder, relate to carborundum miropowder production facility technical field, separation straight tube including vertical setting, the fixed edulcoration branch pipe that has docked in the well lower part of separation straight tube, the edulcoration branch pipe is by the downward sloping setting of butt joint department, be equipped with the deviation pipeline section on the separation straight tube of edulcoration branch pipe top, deviation pipeline section lower extreme leans out the setting and meets with the edulcoration branch pipe is fixed, the deviation pipeline section constitutes the partial inner chamber that supplies the magnetic impurity to incline to use directly over the import of edulcoration branch pipe, the electromagnetic chuck who sets up all fixedly is equipped with a plurality of ranges from top to bottom at the separation straight tube inner wall of deviation pipeline section and deviation pipeline section top, cooperate between the electromagnetic chuck and constitute the deviation field, the. The invention utilizes magnetic field to deflect magnetic impurities, and has the advantages of simple and reliable structure, convenient use, convenient manufacture and maintenance, high impurity removal efficiency and the like.)

1. The utility model provides a high-efficient edulcoration device of silica micropowder which characterized in that: the separation straight tube that includes vertical setting, the fixed edulcoration branch pipe that has docked in the well lower part of separation straight tube, the edulcoration branch pipe is by the downward sloping setting of butt joint department, be equipped with the deviation pipeline section on the separation straight tube of edulcoration branch pipe top, deviation pipeline section lower extreme leans out the setting and meets with the edulcoration branch pipe is fixed, the deviation pipeline section constitutes the deviation inner chamber that supplies magnetic impurity to use directly over the import of edulcoration branch pipe, all fixed the electromagnetic chuck that is equipped with a plurality of ranges from top to bottom and sets up at the separation straight tube inner wall of deviation pipeline section and deviation pipeline section top, cooperate between the electromagnetic chuck and constitute the erroneous tendency electromagnetic field, the erroneous tendency electromagnetic field is used for guiding magnetic impurity and gets into the edulcoration branch pipe along the deviation.

2. The efficient impurity removing device for the micro-silicon powder as claimed in claim 1, which is characterized in that: the included acute angle range between the impurity removal branch pipe and the separation straight pipe is 30-45 degrees.

3. The efficient impurity removing device for the micro-silicon powder as claimed in claim 1, which is characterized in that: the lower part of the deviation inner cavity is provided with an arc-shaped guide plate, the arc-shaped guide plate is fixedly arranged at the butt joint of the impurity removing branch pipe and the separating straight pipe, the lower part of the arc-shaped guide plate extends into the impurity removing branch pipe, and the upper part of the arc-shaped guide plate is arranged in the separating straight pipe and used for guiding and conveying magnetic impurities.

4. The efficient impurity removing device for the micro-silicon powder as claimed in claim 1, which is characterized in that: the bottom of the separation straight pipe is provided with a butt joint which can be used for butt joint with the material distribution head.

5. The efficient impurity removing device for the micro-silicon powder as claimed in claim 1, which is characterized in that: at least two electromagnetic chucks are arranged on the deflection pipe section.

6. The efficient impurity removing device for the micro-silicon powder as claimed in claim 1, which is characterized in that: the separation straight pipe is provided with a transparent observation window which is arranged on the side of the electromagnetic chucks.

Technical Field

The invention relates to the technical field of silicon carbide micro powder production equipment, in particular to a high-efficiency impurity removal device for silicon micro powder.

Background

The silicon carbide is an excellent industrial raw material, has extremely high hardness and certain toughness, is mainly used for cutting and grinding solar silicon wafers, semiconductor silicon wafers and quartz chips, is green in the whole high-purity silicon carbide, and has an atomic lattice crystal structure formed by covalent bonds. With the demand of industrial production, the purity requirement of the silicon carbide micro powder is higher and higher, wherein free carbon and magnetic substances (such as iron) are main impurities influencing the purity of the silicon carbide micro powder. Many devices for removing magnetic impurities in silicon micropowder are disclosed in the prior art, and for example, chinese patent publication No. CN106587065B discloses a system for removing impurities from silicon carbide micropowder, which has many devices, complex structure, high manufacturing cost, and more parts which increase the difficulty of later maintenance.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art and provides a high-efficiency silicon micropowder impurity removal device which is simple and reliable in structure, convenient to use and capable of quickly separating magnetic impurities.

The technical problem to be solved by the present invention is achieved by the following technical means. The invention relates to a silicon micropowder high-efficiency impurity removal device, which is characterized in that: the separation straight tube that includes vertical setting, the fixed edulcoration branch pipe that has docked in the well lower part of separation straight tube, the edulcoration branch pipe is by the downward sloping setting of butt joint department, be equipped with the deviation pipeline section on the separation straight tube of edulcoration branch pipe top, deviation pipeline section lower extreme leans out the setting and meets with the edulcoration branch pipe is fixed, the deviation pipeline section constitutes the deviation inner chamber that supplies magnetic impurity to use directly over the import of edulcoration branch pipe, all fixed the electromagnetic chuck that is equipped with a plurality of ranges from top to bottom and sets up at the separation straight tube inner wall of deviation pipeline section and deviation pipeline section top, cooperate between the electromagnetic chuck and constitute the erroneous tendency electromagnetic field, the erroneous tendency electromagnetic field is used for guiding magnetic impurity and gets into the edulcoration branch pipe along the deviation.

The electromagnetic chuck adjusts the magnetic force through a matched current adjusting system.

The above-mentioned efficient impurity removal device for the silicon micropowder has the further preferable technical scheme or technical characteristics that: the included acute angle range between the impurity removal branch pipe and the separation straight pipe is 30-45 degrees.

The above-mentioned efficient impurity removal device for the silicon micropowder has the further preferable technical scheme or technical characteristics that: the lower part of the deviation inner cavity is provided with an arc-shaped guide plate, the arc-shaped guide plate is fixedly arranged at the butt joint of the impurity removing branch pipe and the separating straight pipe, the lower part of the arc-shaped guide plate extends into the impurity removing branch pipe, and the upper part of the arc-shaped guide plate is arranged in the separating straight pipe and used for guiding and conveying magnetic impurities.

The above-mentioned efficient impurity removal device for the silicon micropowder has the further preferable technical scheme or technical characteristics that: the bottom of the separation straight pipe is provided with a butt joint which can be used for butt joint with the material distribution head.

The above-mentioned efficient impurity removal device for the silicon micropowder has the further preferable technical scheme or technical characteristics that: at least two electromagnetic chucks are arranged on the deflection pipe section.

The above-mentioned efficient impurity removal device for the silicon micropowder has the further preferable technical scheme or technical characteristics that: the separation straight pipe is provided with a transparent observation window which is arranged on the side of the electromagnetic chucks.

Compared with the prior art, the invention has the following beneficial effects:

when the device is used, the distributing head is connected with the silicon carbide micro powder feeding pipe, then the silicon micro powder enters the separating straight pipe along the linear discharging hole, the electromagnetic chuck is controlled through current to regulate the attractive force of a deflection electromagnetic field, so that magnetic impurities in the silicon micro powder are deflected by a magnetic field in the falling process, and then fall into the impurity removing branch pipe along the deflection inner cavity, and further the magnetic impurity removal is carried out on the silicon micro powder; the magnetic impurity removal device has the advantages that the separation straight pipe is matched with the impurity removal branch pipe, magnetic impurities are deflected by utilizing a magnetic field, and the magnetic impurity removal device is simple and reliable in structure, convenient to use, convenient to manufacture and maintain and high in impurity removal efficiency;

and when one separating straight pipe can not fully remove impurities, the bottom butt joint port of the separating straight pipe can be butt jointed with the distribution head of the other separating straight pipe, so that the magnetic force partial derivative impurity removal is carried out for two times or more, and the magnetic force impurity removal is more sufficient.

Drawings

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic top view of the cloth head;

FIG. 3 is a schematic representation of the use of the present invention;

in the figure, 1 separating a straight pipe, 2 removing impurity branch pipes, 3 deflecting pipe sections, 4 electromagnetic chucks, 5 distributing heads, 6 linear discharging holes, 7 arc-shaped guide plates, 8 pairs of interfaces and 9 transparent observation windows.

Detailed Description

The following further describes particular embodiments of the present invention to facilitate further understanding of the present invention by those skilled in the art, and does not constitute a limitation to the right thereof.

A high-efficiency impurity removing device for silicon micropowder, refer to fig. 1, fig. 2 and fig. 3, which comprises a separating straight pipe 1 vertically arranged, an impurity removing branch pipe 2 is fixedly butted at the middle lower part of the separating straight pipe 1, the impurity removing branch pipe 2 is obliquely arranged from the butt joint part, a deflection pipe section 3 is arranged on the separating straight pipe 1 above the impurity removing branch pipe 2, the lower end of the deflection pipe section 3 is obliquely arranged outwards and is fixedly connected with the impurity removing branch pipe 2, the deflection pipe section 3 forms a deflection inner cavity for deflecting magnetic impurities right above the inlet of the impurity removing branch pipe 2, a plurality of electromagnetic chucks 4 which are arranged up and down are respectively fixed on the inner wall of the deflection pipe section 3 and the separating straight pipe 1 above the deflection pipe section 3, the electromagnetic chucks 4 are matched to form a deflection electromagnetic field which is used for guiding the magnetic impurities to enter the impurity removing branch pipe 2 along the, the lower part of the cloth head 5 is provided with a linear blanking hole 6. The linear blanking hole is arranged in a direction perpendicular to the axial direction of the electromagnetic chuck on the separation straight pipe. The linear blanking holes can fully disperse the silicon micropowder so as to attract the magnetic impurities by respective magnetic force.

The included acute angle range between the impurity removing branch pipe 2 and the separating straight pipe 1 is 35 degrees.

Be equipped with arc baffle 7 below the partial pressure inner chamber, arc baffle 7 is fixed to be set up in edulcoration branch pipe 2 and separation straight tube 1 butt joint department, and extension of 7 lower parts of arc baffle sets up in edulcoration branch pipe 2, and 7 upper portions of arc baffle set up in separation straight tube 1 for lead and send magnetic impurity.

The bottom of the separation straight pipe 1 is provided with a butt joint port 8, and the butt joint port 8 can be used for butt joint with the material distribution head 5.

The deflection pipe section 3 is provided with 3 electromagnetic chucks 4.

The separation straight pipe 1 is provided with a transparent observation window 9, and the transparent observation window 9 is arranged on the side of the electromagnetic chucks 4. The attraction effect of the biased electromagnetic field on the magnetic impurities is observed by using the transparent observation window 9, and the size of the attraction force of the electromagnetic chuck 4 is adjusted by controlling the current so as to obtain the optimal attraction effect.

During the use, meet cloth stub bar 5 and carborundum miropowder feed pipe, the miropowder gets into separation straight tube 1 along the line shape unloading hole 6 afterwards, and through electric current control electromagnet 4 and then the size of the gravitation of regulation and control deviation electromagnetic field for magnetic impurities is deflected by the magnetic field in the miropowder in the in-process that falls, and then drops into in the edulcoration branch pipe 2 along the deviation inner chamber, and then carries out the magnetic force edulcoration to the miropowder.