CN111964443A

CN111964443A - High-temperature calcining furnace for high-purity quartz sand

Info

Publication number: CN111964443A
Application number: CN202010909959.2A
Authority: CN
Inventors: 彭志威; 濮晓明; 韩海芹; 张纪
Original assignee: Nancheng Fuhong High Purity Silicon Material Co ltd
Current assignee: Nancheng Fuhong High Purity Silicon Material Co ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2020-11-20

Abstract

The invention discloses a high-purity quartz sand high-temperature calcining furnace, which belongs to the technical field of chlorination devices and comprises a shell, wherein a heating main body is fixedly connected in the shell, a rotating shaft is arranged in the heating main body, a first driving piece is fixedly connected to the left side surface of the inner wall of the shell, an output shaft of the first driving piece is fixedly connected with the left end of the rotating shaft, and a plurality of stirring pieces are arranged on the outer wall of the rotating shaft. This high-purity quartz sand high temperature calcining furnace, through setting up the stirring piece, the apparatus further comprises a rotating shaft, first driving piece, separator and circulating line, utilize the effect of first driving piece, the stirring piece that can drive the pivot and connect rotates, and then can stir the dust, and cooperate circulating line's effect, make chlorinating agent gas enter into and heat the main part content and easily form the convection current, the fast circulation of being convenient for flows, and then make and can react fast between chlorinating agent gas and the nonmetal powder, effectively improve its chlorination efficiency.

Description

High-temperature calcining furnace for high-purity quartz sand

Technical Field

The invention belongs to the technical field of quartz purification equipment, and particularly relates to a high-purity quartz sand high-temperature calcining furnace.

Background

In traditional purification process, most gangue minerals and gas-liquid inclusion in the quartz raw material can be dissociated or destroyed to be removed, but the removal difficulty of crystal lattice impurities is very large, the homogenization of the existing high-temperature calcining device is serious, the function is single, and the crystal lattice impurities of the quartz raw material can not be removed in the calcining process.

Disclosure of Invention

Technical problem to be solved

In order to overcome the defects in the prior art, the invention provides a high-purity quartz sand high-temperature calcining furnace, which solves the technical problems that the existing high-temperature calcining device is serious in homogeneity and single in function, and crystal lattice impurities of quartz raw materials cannot be removed in the calcining process.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a high-purity quartz sand high-temperature calcining furnace comprises a shell, wherein a heating main body is fixedly connected in the shell, a rotating shaft is arranged in the heating main body, a first driving piece is fixedly connected with the left side surface of the inner wall of the shell, the output shaft of the first driving piece is fixedly connected with the left end of the rotating shaft, the outer wall of the rotating shaft is provided with a plurality of stirring pieces, the left end and the right end of the rotating shaft are sleeved with bearings, two isolating pieces are arranged in the heating main body, the outer wall of the isolating piece is fixedly connected with the inner wall of the heating main body, one end of each of the two bearings is respectively clamped on the inner walls of the two isolating pieces, a circulating pipeline is arranged in the shell, the left end and the right end of the circulating pipeline are respectively clamped on the left side surface and the right side surface of the heating main body, the high-purity quartz sand high-temperature calcining furnace further comprises a filtering structure arranged in the heating main body, and the filtering structure is arranged between the two isolating pieces.

As a further scheme of the invention: the filtration includes that first filter, second filter and third filter, first filter the second filter and the third filter one end all with one of them the separator is connected, first filter the second filter and the third filter the other end all with another the separator is connected.

As a further scheme of the invention: the first filter piece, the second filter piece and the third filter piece are followed the axial of heating main part sets gradually from top to bottom.

As a further scheme of the invention: the first filtering piece is provided with a first filtering hole, the second filtering piece is provided with a second filtering hole, and the third filtering piece is provided with a third filtering hole.

As a further scheme of the invention: the upper surface of casing has set gradually first air inlet and second air inlet from a left side to the right side, the bottom of first air inlet and the equal joint in the upper surface of circulating line inner wall in the bottom of second air inlet, the front of first air inlet and the front of second air inlet all are provided with the valve.

As a further scheme of the invention: the heating device is characterized in that a plurality of electric heating pieces are arranged in the heating main body, a heat preservation layer is arranged on the outer wall of the heating main body, the heat preservation layer is made of high-temperature heat preservation cotton materials, and a heat insulation cavity is arranged in the heating main body.

As a further scheme of the invention: the front and the back of the inner wall of the heating main body are respectively provided with a discharge port and a feeding port, and the feeding port is designed in an inclined mode.

As a further scheme of the invention: the left side joint of pan feeding mouth inner wall has the second driving piece, two connecting plates of output shaft outer wall fixedly connected with of second driving piece, the one end joint of connecting plate has broken piece.

As a further scheme of the invention: the housing is made of an alloy material.

As a further scheme of the invention: the outer surface of the shell is provided with an aluminum alloy coating, and the thickness of the aluminum alloy coating is 1 mm to 5 mm.

(III) advantageous effects

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

1. this high-purity quartz sand high temperature calcining furnace, through setting up the stirring piece, the apparatus further comprises a rotating shaft, first driving piece, separator and circulating line, utilize the effect of first driving piece, the stirring piece that can drive the pivot and connect rotates, and then can stir the dust, and cooperate circulating line's effect, make chlorinating agent gas enter into and heat the main part content and easily form the convection current, the fast circulation of being convenient for flows, and then make and can react fast between chlorinating agent gas and the nonmetal powder, effectively improve its chlorination efficiency.

2. This high-purity quartz sand high temperature calcining furnace through setting up electric heat spare, heat preservation and heat insulation chamber, utilizes the mating reaction in heat preservation and heat insulation chamber, can make the electric heat spare when heating the main part, separates the temperature to it and keeps warm for the temperature is invariable in the heating main part, and the chlorination agent gas of being convenient for is stable to react with between the nonmetal powder, can effectively reduce the consumption of electric power resource simultaneously.

3. This high-purity quartz sand high temperature calcining furnace through setting up pan feeding mouth, second driving piece, connecting plate and broken piece, utilizes the structure cooperation of second driving piece, connecting plate and broken piece, can mill the powder that enters into in the pan feeding mouth to be convenient for with it leading-in to the heating main part in, and then can effectively prevent that the great caking powder of volume from influencing chlorination reaction's effect.

Drawings

FIG. 1 is a schematic cross-sectional view of the front view of the present invention;

FIG. 2 is a right side view of the heating body according to the present invention;

FIG. 3 is an enlarged schematic view of FIG. 2 at A in accordance with the present invention;

fig. 4 is a partially enlarged view of the portion B shown in fig. 1.

In the figure: 1 casing, 2 heating main parts, 3 heat preservation, 4 thermal insulation chamber, 5 electric heat spare, 6 discharge gates, 7 stirring, 8 pivots, 9 bearings, 10 first driving piece, 11 separator, 12 circulating line, 13 first air inlets, 14 second air inlets, 15 pan feeding mouths, 16 second driving piece, 17 connecting plate, 18 broken piece, 19 filtration, 191 first filtration piece, 192 second filtration piece, 193 third filtration piece, 1911 first filtration hole, 1921 second filtration hole, 1931 third filtration hole.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 4, the present invention provides a technical solution: the utility model provides a high-purity quartz sand high temperature calcining furnace, includes casing 1, in order to increase the intensity of casing 1, improves the life-span of high-purity quartz sand high temperature calcining furnace, casing 1 is made by alloy material, the surface of casing is equipped with the aluminum alloy coating, the thickness of aluminum alloy coating is 1 millimeter to 5 millimeters, fixedly connected with heating main part 2 in the casing 1, is provided with pivot 8 in the heating main part 2, the left surface fixedly connected with first driving piece 10 of casing 1 inner wall, the output shaft of first driving piece 10 and the left end fixed connection of pivot 8, the outer wall of pivot 8 is provided with a plurality of stirring piece 7.

Bearing 9 has all been cup jointed at both ends about pivot 8, be provided with two separators 11 in the heating main part 2, the outer wall of separator 11 and the inner wall fixed connection who heats

main part

2, 11 effects through two separators that set up, can block the powder, prevent that it from entering into circulating line 12, and can not influence chlorinating agent gas and flow at the internal circulation of heating main part 2, the one end difference joint of two bearings 9 is at the inner wall of two separators 11, be provided with circulating line 12 in the casing 1, both ends difference joint is in the left and right sides face of heating main part 2 about circulating line 12.

Specifically, as shown in fig. 1, a first air inlet 13 and a second air inlet 14 are sequentially arranged on the upper surface of a shell 1 from left to right, the bottom end of the first air inlet 13 and the bottom end of the second air inlet 14 are both clamped on the upper surface of the inner wall of a circulating pipeline 12, valves are respectively arranged on the front surface of the first air inlet 13 and the front surface of the second air inlet 14, because the first air inlet 13 and the second air inlet 14 are both connected with the circulating pipeline 12, and the chlorinating agent gas can rapidly flow along a heating main body 2 after being added, a plurality of electric heating elements 5 are arranged in the heating main body 2, an insulating layer 3 is arranged on the outer wall of the heating main body 2, the insulating layer 3 is made of high-temperature insulating cotton, an insulating cavity 4 is arranged in the heating main body 2, and the electric heating elements 5 can insulate the heating main body 2 at high temperature by utilizing the cooperation effect of the insulating layer 3 and the, can effectively reduce the consumption of power resources and is relatively environment-friendly.

Specifically, as shown in fig. 2, 3, the front and the back of 2 inner walls of heating main part are provided with discharge gate 6 and pan feeding mouth 15 respectively, pan feeding mouth 15 is the slope design, pan feeding mouth 15 through the slope design, be convenient for the powder enter into in the heating main part 2 through pan feeding mouth 15, the pan feeding mouth 15 effect that the cooperation set up simultaneously, be convenient for carry out material loading and unloading with the powder, the left surface joint of pan feeding mouth 15 inner wall has second driving piece 16, two connecting plates 17 of the output shaft outer wall fixedly connected with of second driving piece 16, the one end joint of connecting plate 17 has broken piece 18, utilize the effect of second driving piece 16, can drive connecting plate 17 and broken piece 18 rotatory, and then can grind the powder that enters into the pan feeding mouth 15 caking, and is comparatively convenient.

The working principle of the invention is as follows:

s1, when in use, firstly, a worker opens the feeding port 15, puts nonmetal powder into the feeding port, drives the crushing member 18 connected with the connecting plate 17 to rotate by the second driving member 16, crushes the agglomerated powder, then introduces the crushed powder into the heating main body 2, and then closes the feeding port 15;

s2, injecting nitrogen gas into the first gas inlet 13 to exhaust the air in the heating body 2, injecting chlorinating agent gas into the heating body 2 through the second gas inlet 14, heating the heating body 2 by the electric heating element 5, circulating the chlorinating agent gas in the circulating pipeline 12 and the heating body 2, and reacting with the powder;

s3, simultaneously, the first driving piece 10 drives the rotating shaft 8 to rotate so as to stir the powder, the chlorinating agent gas is in full contact with the powder to react when flowing circularly, and after the reaction is finished, the discharge hole 6 is opened again to discharge the powder for collection.

Referring to fig. 1 to 4, in the present embodiment, the high-purity quartz sand high-temperature calcining furnace further includes a filtering structure 19 disposed in the heating main body 2, and the filtering structure 19 is used for filtering powder to break up agglomerated powder and reduce the volume of the powder.

The setting position of filtration 19 is located between two separators 11, and filtration 19 includes that first filtration piece 191, second filtration piece 192 and third filtration piece 193 filter piece 191, second filtration piece 192 and the one end of third filtration piece 193 all are connected with one of them separator 11, and the other end that first filtration piece 191, second filtration piece 192 and third filtration piece 193 all is connected with another separator 11.

The first filter 191, the second filter 192, and the third filter 193 are sequentially disposed from top to bottom in the axial direction of the heating body 2. In order to improve the powder filtering effect and improve the crushing efficiency of the agglomerated powder, the first filtering member 191 is provided with a first filtering hole 1911, the second filtering member 192 is provided with a second filtering hole 1921, the third filtering member 193 is provided with a third filtering hole 1931, the aperture of the first filtering hole 1911 is larger than that of the second filtering hole 1921, and the aperture of the second filtering hole 1921 is larger than that of the third filtering hole 1931.

In this embodiment, the filtering structure 19 is made of a magnetic material, and the filtering structure 19 may be a neodymium magnet, because the heating temperature in the heating body is about 300 ℃, the magnetic material does not lose magnetism, and the filtering structure 19 made of the magnetic material can also be used to remove the miscellaneous iron in the quartz sand, that is, when the quartz sand containing miscellaneous iron passes through the filtering structure 19, the filtering structure 19 made of the magnetic material can adsorb the miscellaneous iron in the quartz sand and remove the miscellaneous iron in the quartz sand.

It can be understood that the filter structure 19 has multiple layers of filter elements, i.e., the first filter element 191, the second filter element 192 and the third filter element 193 of the filter structure 19, which can improve the contact area and the contact time between the quartz sand and the filter structure 19, and improve the efficiency of breaking the agglomerated powder and removing the miscellaneous iron in the quartz sand.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The high-temperature calcining furnace for the high-purity quartz sand comprises a shell (1) and is characterized in that: the heating device is characterized in that a heating main body (2) is fixedly connected in the shell (1), a rotating shaft (8) is arranged in the heating main body (2), a first driving piece (10) is fixedly connected to the left side surface of the inner wall of the shell (1), an output shaft of the first driving piece (10) is fixedly connected with the left end of the rotating shaft (8), a plurality of stirring pieces (7) are arranged on the outer wall of the rotating shaft (8), bearings (9) are sleeved at the left end and the right end of the rotating shaft (8), two isolating pieces (11) are arranged in the heating main body (2), the outer wall of each isolating piece (11) is fixedly connected with the inner wall of the heating main body (2), one ends of the two bearings (9) are respectively clamped on the inner walls of the two isolating pieces (11), a circulating pipeline (12) is arranged in the shell (1), and the left end and the right end of the circulating pipeline (12) are, the high-purity quartz sand high-temperature calcining furnace further comprises a filtering structure (19) arranged in the heating main body (2), and the filtering structure (19) is arranged between the two isolating pieces (11).

2. The high-purity quartz sand high-temperature calcining furnace according to claim 1, characterized in that: the filter structure (19) comprises a first filter element (191), a second filter element (192) and a third filter element (193), one end of each of the first filter element (191), the second filter element (192) and the third filter element (193) is connected to one of the spacers (11), and the other end of each of the first filter element (191), the second filter element (192) and the third filter element (193) is connected to the other spacer (11).

3. The high-purity quartz sand high-temperature calcining furnace according to claim 2, characterized in that: the first filter element (191), the second filter element (192) and the third filter element (193) are arranged in sequence from top to bottom along the axial direction of the heating body (2).

4. The high-purity quartz sand high-temperature calcining furnace according to claim 3, characterized in that: the first filter member (191) is provided with a first filter hole (1911), the second filter member (192) is provided with a second filter hole (1921), and the third filter member (193) is provided with a third filter hole (1931).

5. The high-purity quartz sand high-temperature calcining furnace according to claim 4, characterized in that: the upper surface of casing (1) has set gradually first air inlet (13) and second air inlet (14) from a left side to the right side, the equal joint in the upper surface of circulating line (12) inner wall in the bottom of first air inlet (13) and the bottom of second air inlet (14), the front of first air inlet (13) and the front of second air inlet (14) all are provided with the valve.

6. The high-purity quartz sand high-temperature calcining furnace according to claim 5, characterized in that: the heating device is characterized in that a plurality of electric heating pieces (5) are arranged in the heating main body (2), a heat preservation layer (3) is arranged on the outer wall of the heating main body (2), the heat preservation layer (3) is made of high-temperature heat preservation cotton materials, and a heat insulation cavity (4) is arranged in the heating main body (2).

7. The high-purity quartz sand high-temperature calcining furnace according to claim 6, characterized in that: the front and the back of the inner wall of the heating main body (2) are respectively provided with a discharge port (6) and a feeding port (15), and the feeding port (15) is designed in an inclined manner.

8. The high-purity quartz sand high-temperature calcining furnace according to claim 7, characterized in that: the left side of pan feeding mouth (15) inner wall has second driving piece (16) joint, the output shaft outer wall fixedly connected with of second driving piece (16) has two connecting plates (17), the one end joint of connecting plate (17) has broken piece (18).

9. The high-purity quartz sand high-temperature calcining furnace according to claim 8, characterized in that: the housing (1) is made of an alloy material.

10. The high-purity quartz sand high-temperature calcining furnace according to claim 9, characterized in that: the outer surface of the shell (1) is provided with an aluminum alloy coating, and the thickness of the aluminum alloy coating is 1 mm to 5 mm.