Sorting and dust removing device for silica fume production

Abstract

The utility model discloses a separation and dust removal device for silica fume production, which comprises a separation tank, the outer surface of the separation tank is fixedly communicated with an air inlet pipe, the upper surface of the separation tank is fixedly communicated with an exhaust pipe, the inner top wall of the separation tank is fixedly connected with positioning rods which are distributed in an annular array, and the outer surfaces of the plurality of positioning rods are movably sleeved with vibration rings; one end of the positioning rod is fixedly connected with a limiting block, and the upper surface of the limiting block is in contact with the lower surface of the vibration ring. Through the cleaning device, micro silicon powder adsorbed on the surface of the filter screen is automatically and continuously cleaned, and the filter screen is prevented from being blocked through intermittent vibration matching; therefore, continuous use of the filter screen is guaranteed, and the device has the effect of automatically scraping and collecting micro silicon powder adsorbed on the inner wall, so that the manual labor force is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial silicon production, in particular to a sorting and dust removal device for micro silicon powder production. Background Art

[0002] Metallic silicon is also called crystalline silicon or industrial silicon. Its main use is as an additive for non-ferrous alloys. Metallic silicon is a product smelted from quartz and coke in an electric furnace. The content of the main component silicon is about 98%, and the remaining impurities are iron, aluminum, calcium, etc. A large amount of flue gas will be generated during the silicon production process. The flue gas contains a large amount of micro-silicon. If it is directly discharged into the atmosphere, it will pollute the atmosphere and cause waste. Therefore, a sorting and dust removal device is needed to increase production and avoid pollution.

[0003] In the existing industrial silicon production process, sorting and dust removal equipment is used to sort, collect and process the microsilica powder in the flue gas. Since the microsilica powder is formed by rapid oxidation, condensation and precipitation with air after the silicon gas is discharged, the microsilica powder is easily attached to the inner wall of the sorting equipment during the collection process, which makes it inconvenient to collect and process the microsilica powder attached to the inner wall of the box. The collection operation is cumbersome, resulting in a large amount of microsilica powder being wasted. In addition, when using a filter screen to collect the microsilica powder, the filter screen is easily blocked by the microsilica powder after a long time, and frequent cleaning is required, which greatly reduces the production efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a sorting and dust removal device for producing micro silicon powder to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sorting and dust removal device for producing micro-silicon powder, comprising a sorting tank, the outer surface of the sorting tank is fixedly connected to an air inlet pipe, the upper surface of the sorting tank is fixedly connected to an exhaust pipe, the inner top wall of the sorting tank is fixedly connected to positioning rods distributed in a ring array, the outer surfaces of the plurality of positioning rods are movably sleeved with vibration rings, one end of the positioning rod is fixedly connected to a limiting block, and the upper surface of the limiting block is in contact with the lower surface of the vibration ring;

[0006] A cleaning device is arranged on the outer surface of the vibration ring, and the cleaning device comprises an inclined surface block, and the upper surface of the inclined surface block is fixedly connected to the lower surface of the vibration ring.

[0007] Preferably, a filter screen is fixedly sleeved on the inner wall of the vibration ring, a return spring is movably sleeved on the outer surface of the positioning rod, and one end of a plurality of return springs is fixedly connected to the inner top wall of the sorting tank.

[0008] Preferably, the other ends of the multiple return springs are fixedly connected to the upper surface of the vibration ring, the upper surface of the vibration ring is fixedly connected to a bellows, one end of the bellows is fixedly connected to the inner top wall of the sorting tank, and the lower surface of the sorting tank is fixedly connected to a collecting box.

[0009] Preferably, a sealing box is movably inserted into one side surface of the collecting box, a through hole is opened in the inner bottom wall of the sorting tank, one end of the through hole is connected to the inner top wall of the collecting box, a servo motor is fixedly installed on the lower surface of the sorting tank, and the output shaft of the servo motor is fixedly installed with a rotating shaft through a coupling.

[0010] Preferably, one end of the rotating shaft passes through and extends to the interior of the separation tank, a bottom scraper is fixedly connected to the outer surface of the rotating shaft, and a lower surface of the bottom scraper is in contact with the inner bottom wall of the separation tank.

[0011] Preferably, a side scraper is fixedly connected to the upper surface of the bottom scraper, one side surface of the side scraper contacts the inner wall of the sorting tank, one end of the rotating shaft is fixedly connected to a mounting plate, and the upper surface of the mounting plate is movably sleeved with guide rods distributed in a linear array.

[0012] Preferably, one ends of the multiple guide rods are fixedly connected to a limiting plate, the other ends of the multiple guide rods are fixedly connected to a cleaning plate, the upper surface of the cleaning plate contacts the lower surface of the filter, the outer surface of the guide rods is movably sleeved with a support spring, one ends of the multiple support springs are fixedly connected to the upper surface of the mounting plate, and the other ends of the multiple support springs are fixedly connected to the lower surface of the cleaning plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the cleaning device can realize the automatic and continuous cleaning of the microsilica powder adsorbed on the surface of the filter, and avoid the clogging of the filter through intermittent vibration, thereby ensuring the continuous use of the filter, and has the effect of automatically scraping and collecting the microsilica powder adsorbed on the inner wall, thereby reducing manual labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 A three-dimensional diagram of the separation tank structure of a separation and dust removal device for micro-silicon powder production proposed by the utility model;

[0016] Figure 3 The utility model proposes a separation and dust removal device for micro silicon powder production Figure 2 A magnified view of the structure at center;

[0017] Figure 4This is a three-dimensional diagram of the mounting plate structure of a sorting and dust removal device for micro-silicon powder production proposed by the utility model;

[0018] Figure 5 This is a three-dimensional diagram of the vibration ring structure of a sorting and dust removal device for micro-silicon powder production proposed by the utility model.

[0019] In the figure: 1. sorting tank; 2. air inlet pipe; 3. exhaust pipe; 4. positioning rod; 5. vibration ring; 6. limit block; 7. inclined block; 71. filter screen; 72. return spring; 73. bellows; 74. collecting box; 75. sealing box; 76. through hole; 77. servo motor; 78. rotating shaft; 79. bottom scraper; 710. side scraper; 711. mounting plate; 712. guide rod; 713. limit plate; 714. cleaning plate; 715. supporting spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 5 The utility model provides a technical solution: a sorting and dust removal device for micro-silicon powder production, comprising a sorting tank 1, the outer surface of the sorting tank 1 is fixedly connected with an air inlet pipe 2, the upper surface of the sorting tank 1 is fixedly connected with an exhaust pipe 3, the inner top wall of the sorting tank 1 is fixedly connected with positioning rods 4 distributed in a ring array, the outer surfaces of the plurality of positioning rods 4 are movably sleeved with vibration rings 5, one end of the positioning rod 4 is fixedly connected with a limiting block 6, and the upper surface of the limiting block 6 is in contact with the lower surface of the vibration ring 5;

[0022] A cleaning device is provided on the outer surface of the vibration ring 5 , and the cleaning device includes a slope block 7 , and the upper surface of the slope block 7 is fixedly connected to the lower surface of the vibration ring 5 .

[0023] Furthermore, a filter screen 71 is fixedly sleeved on the inner wall of the vibration ring 5, and a return spring 72 is movably sleeved on the outer surface of the positioning rod 4. One ends of the multiple return springs 72 are fixedly connected to the inner top wall of the sorting tank 1, and one end of the exhaust pipe 3 is sleeved with a dustproof bag, so as to further filter the exhausted gas. The elastic force of the return spring 72 drives the vibration ring 5 to reset and move, thereby vibrating the filter screen 71 to avoid blockage.

[0024] Furthermore, the other ends of the multiple reset springs 72 are fixedly connected to the upper surface of the vibration ring 5, the upper surface of the vibration ring 5 is fixedly connected to a bellows 73, one end of the bellows 73 is fixedly connected to the inner top wall of the sorting tank 1, and the lower surface of the sorting tank 1 is fixedly connected to a collecting box 74. The contraction characteristics of the bellows 73 play a role in cooperating with the vibration ring 5 to move up and down.

[0025] Furthermore, a sealing box 75 is movably inserted into the surface of one side of the collecting box 74, a through hole 76 is opened on the inner bottom wall of the sorting tank 1, one end of the through hole 76 is connected to the inner top wall of the collecting box 74, a servo motor 77 is fixedly installed on the lower surface of the sorting tank 1, and a rotating shaft 78 is fixedly installed on the output shaft of the servo motor 77 through a coupling. The through hole 76 allows the micro silicon powder scraped from the sorting tank 1 to fall into the sealing box 75 for collection, so as to facilitate unified treatment.

[0026] Furthermore, one end of the rotating shaft 78 passes through and extends to the interior of the sorting tank 1, and a bottom scraper 79 is fixedly connected to the outer surface of the rotating shaft 78. The lower surface of the bottom scraper 79 contacts the inner bottom wall of the sorting tank 1, and the rotating shaft 78 drives the bottom scraper 79 to rotate, thereby scooping up the micro silicon powder adsorbed on the inner bottom wall of the sorting tank 1.

[0027] Furthermore, a side scraper 710 is fixedly connected to the upper surface of the bottom scraper 79, and one side surface of the side scraper 710 contacts the inner wall of the sorting tank 1. One end of the rotating shaft 78 is fixedly connected to a mounting plate 711, and a guide rod 712 distributed in a linear array is movably sleeved on the upper surface of the mounting plate 711. The side scraper 710 serves to shovel and collect the micro silicon powder adsorbed on the inner wall of the sorting tank 1.

[0028] Furthermore, one ends of the multiple guide rods 712 are fixedly connected to the limiting plate 713, and the other ends of the multiple guide rods 712 are fixedly connected to the cleaning plate 714. The upper surface of the cleaning plate 714 contacts the lower surface of the filter screen 71. The outer surface of the guide rods 712 is movably sleeved with a support spring 715. One ends of the multiple support springs 715 are fixedly connected to the upper surface of the mounting plate 711, and the other ends of the multiple support springs 715 are fixedly connected to the lower surface of the cleaning plate 714. The elastic force of the support springs 715 acts to apply an extruding force to the cleaning plate 714, thereby facilitating the cleaning plate 714 to clean the microsilicon powder adsorbed on the filter screen 71. Elastic bristles can be arranged above the cleaning plate 714 to facilitate cleaning.

[0029] The cleaning device can automatically and continuously clean the microsilica powder adsorbed on the surface of the filter 71, and avoid blockage of the filter 71 through intermittent vibration, thereby ensuring the continuous use of the filter 71. It also has the effect of automatically scraping and collecting the microsilica powder adsorbed on the inner wall, thereby reducing manual labor.

[0030] Working principle: Step 1, first put a dust bag on one end of the exhaust pipe 3, then connect the smoke to the intake pipe 2, and transport it to the sorting tank 1 through the intake pipe 2. The microsilica powder in the smoke is first intercepted by the filter screen 71, and then discharged from the sorting tank 1 through the exhaust pipe 3. When being discharged, it is further intercepted and collected by the dust bag. The servo motor 77 is started to work. The servo motor 77 drives the bottom scraper 79 and the side scraper 710 to rotate through the rotating shaft 78, so as to collect the microsilica powder on the inner side wall and the inner bottom wall of the sorting tank 1, so that it falls through the through hole 76 to the collection and sealing box 75 for collection;

[0031] Step 2, at the same time, the rotation of the rotating shaft 78 drives the mounting plate 711 to rotate. Each time the mounting plate 711 rotates one circle, it squeezes the inclined surface block 7 once. After being squeezed, the inclined surface block 7 will drive the return spring 72 to contract through the vibration ring 5. When the mounting plate 711 is separated from the inclined surface block 7 after each squeezing, the return elastic force of the return spring 72 will drive the filter screen 71 to move downward through the vibration ring 5, and make it impact and contact with the limit block 6, so that the filter screen 71 vibrates intermittently, and the rotation of the rotating shaft 78 drives the cleaning plate 714 to rotate through the cooperation of the mounting plate 711 and the guide rod 712. The rotation of the cleaning plate 714 plays a role in continuously cleaning the microsilicon powder adsorbed on the surface of the filter screen 71, thereby avoiding clogging of the filter screen 71.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A separation and dust removal device for producing microsilica powder, comprising a separation tank (1), characterized in that: The outer surface of the separation tank (1) is fixedly connected to an air inlet pipe (2), the upper surface of the separation tank (1) is fixedly connected to an exhaust pipe (3), the inner top wall of the separation tank (1) is fixedly connected to positioning rods (4) distributed in a ring array, the outer surfaces of the plurality of positioning rods (4) are movably sleeved with a vibration ring (5), one end of the positioning rod (4) is fixedly connected to a limiting block (6), the upper surface of the limiting block (6) is in contact with the lower surface of the vibration ring (5); The outer surface of the vibration ring (5) is provided with a cleaning device, and the cleaning device comprises a slope block (7), and the upper surface of the slope block (7) is fixedly connected to the lower surface of the vibration ring (5).

2. A separation and dust removal device for producing microsilica powder according to claim 1, characterized in that: The inner wall of the vibration ring (5) is fixedly sleeved with a filter screen (71), the outer surface of the positioning rod (4) is movably sleeved with a return spring (72), and one end of a plurality of return springs (72) is fixedly connected to the inner top wall of the separation tank (1).

3. A separation and dust removal device for producing microsilica powder according to claim 2, characterized in that: The other ends of the plurality of return springs (72) are fixedly connected to the upper surface of the vibration ring (5), the upper surface of the vibration ring (5) is fixedly connected to a bellows (73), one end of the bellows (73) is fixedly connected to the inner top wall of the sorting tank (1), and the lower surface of the sorting tank (1) is fixedly connected to a collecting box (74).

4. A separation and dust removal device for producing microsilica powder according to claim 3, characterized in that: A sealing box (75) is movably inserted into a surface of one side of the collecting box (74); a through hole (76) is provided on the inner bottom wall of the sorting tank (1); one end of the through hole (76) is communicated with the inner top wall of the collecting box (74); a servo motor (77) is fixedly mounted on the lower surface of the sorting tank (1); and a rotating shaft (78) is fixedly mounted on the output shaft of the servo motor (77) via a coupling.

5. A separation and dust removal device for producing microsilica powder according to claim 4, characterized in that: One end of the rotating shaft (78) passes through and extends into the interior of the separation tank (1); a bottom scraper (79) is fixedly connected to the outer surface of the rotating shaft (78); and a lower surface of the bottom scraper (79) contacts the inner bottom wall of the separation tank (1).

6. A separation and dust removal device for producing microsilica powder according to claim 5, characterized in that: The upper surface of the bottom scraper (79) is fixedly connected to a side scraper (710), one side surface of the side scraper (710) contacts the inner wall of the sorting tank (1), one end of the rotating shaft (78) is fixedly connected to a mounting plate (711), and the upper surface of the mounting plate (711) is movably sleeved with guide rods (712) distributed in a linear array.

7. A separation and dust removal device for producing microsilica powder according to claim 6, characterized in that: One end of each of the guide rods (712) is fixedly connected to a limiting plate (713), and the other end of each of the guide rods (712) is fixedly connected to a cleaning plate (714). The upper surface of the cleaning plate (714) contacts the lower surface of the filter screen (71). A support spring (715) is movably sleeved on the outer surface of the guide rod (712). One end of each of the support springs (715) is fixedly connected to the upper surface of the mounting plate (711), and the other end of each of the support springs (715) is fixedly connected to the lower surface of the cleaning plate (714).

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