Quartz sand high-temperature chlorination purification device

Abstract

The utility model discloses a quartz sand high-temperature chlorination purification device, which comprises a heating furnace body, a mounting shaft and a spiral sheet, at least one cylindrical cavity is arranged in the heating furnace body, the upper end side of the cylindrical cavity is provided with a feed port, and the lower end side of the cylindrical cavity is provided with a discharge port; the mounting shaft and the cylindrical cavity are coaxially arranged; the spiral piece is spirally arranged in the axis direction of the mounting shaft, the inner side edge of the spiral piece is fixedly arranged on the mounting shaft, and the outer side edge of the spiral piece is in clearance fit with the inner cavity wall of the cylindrical cavity; and quartz sand falling into the cylindrical cavity from the charging hole can spirally slide to the discharging hole along the spiral sheet. According to the quartz sand high-temperature chlorination purification device, continuous operation can be realized, and the purification working efficiency is greatly improved; in addition, the contact area between the quartz sand and the reaction gas is increased, so that the purification effect is improved.

Description

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on June 6, 2024, with application number 202410728926.6 and patent name “A High-temperature Chlorination Purification Device for Quartz Sand”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The utility model relates to the technical field of high-temperature purification of quartz sand, and more specifically to a high-temperature chlorination purification device for quartz sand. Background Art

[0003] High-purity quartz sand is a high-purity non-metallic mineral raw material produced from natural quartz minerals through a series of physical and chemical purification techniques. High-purity quartz sand is the primary raw material for the production of high-purity quartz glass tubes / rods and quartz glass crucibles. Quartz glass, a single-component glass made of silicon dioxide, boasts high hardness and a range of excellent physical and chemical properties, including high-temperature resistance, low thermal expansion coefficient, thermal shock resistance, corrosion resistance, excellent insulation, and high light transmittance. Therefore, quartz glass is widely used in high-end electric light sources, large-scale and ultra-large-scale integrated circuits, solar cells, optical fiber, lasers, aerospace, and military industries.

[0004] High-purity quartz sand is sourced from natural quartz ore. Besides quartz, quartz ore typically contains a variety of impurity minerals, including mica, feldspar, and iron-titanium oxides. Quartz itself, due to defects in its crystal structure or microcracks, often contains certain metallic and non-metallic impurities, as well as fluid impurities. While most impurities can be removed through flotation, magnetic separation, gravity separation, acid leaching, and calcination, it's difficult to achieve the higher standards for certain elements required for high-purity quartz sand.

[0005] In the prior art, quartz sand purification is mainly accomplished by using a quartz sand high-temperature chlorination purification device. However, most of the current quartz sand high-temperature chlorination purification devices cannot fully mix and react the quartz sand with the reaction gas, resulting in low quartz sand purification efficiency and poor purification effect.

[0006] In summary, how to solve the problems of low purification efficiency and poor purification effect of quartz sand high-temperature chlorination purification equipment has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0007] In view of this, the utility model provides a quartz sand high-temperature chlorination purification device to solve the problems of low purification efficiency and poor purification effect of the quartz sand high-temperature chlorination purification device.

[0008] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0009] A quartz sand high-temperature chlorination purification device, comprising:

[0010] A heating furnace body is provided with at least one cylindrical cavity, wherein the axis of the cylindrical cavity is arranged at an angle to the horizontal plane, the upper end side of the cylindrical cavity is provided with a feeding port, the lower end side of the cylindrical cavity is provided with a discharge port, and the two ends of the cylindrical cavity are respectively provided with an air inlet and an air outlet;

[0011] An installation shaft is disposed in the cylindrical cavity and is coaxially arranged with the cylindrical cavity;

[0012] A spiral piece is spirally arranged along the axial direction of the installation shaft, with the inner edge of the spiral piece fixedly arranged on the installation shaft and the outer edge of the spiral piece cooperating with the inner wall of the cylindrical cavity;

[0013] The quartz sand falling into the cylindrical cavity from the feeding port can spirally slide along the spiral sheet and fall to the discharging port.

[0014] Optionally, at least part of the spiral segments of the spiral sheet is constructed as a sieve structure, and the sieve structures on the spiral segments of two adjacent layers of the spiral segment are staggered.

[0015] Optionally, the spiral is configured as a static spiral;

[0016] The mounting shaft is fixedly disposed in the cylindrical cavity, the spiral blade is stationary relative to the inner wall of the cylindrical cavity, and the angle between the axis of the cylindrical cavity and the horizontal plane is in the range of 45°-90°.

[0017] Optionally, the inclination angle of the spiral blades ranges from 27° to 85°.

[0018] Optionally, the spiral is configured as a dynamic spiral;

[0019] The quartz sand high-temperature chlorination purification device further includes a driving mechanism, wherein the mounting shaft is rotatably disposed in the cylindrical cavity, the outer edge of the spiral piece is gap-matched with the inner cavity wall of the cylindrical cavity, and the driving mechanism is in driving connection with the mounting shaft to drive the spiral piece to rotate by driving the mounting shaft to rotate;

[0020] Wherein, the angle between the axis of the cylindrical cavity and the horizontal plane is a right angle or an acute angle.

[0021] Optionally, the mounting shaft includes a transmission shaft and a heat insulation layer arranged on the outside of the transmission shaft, and the inner edge of the spiral blade is fixedly arranged on the outer tube wall of the heat insulation layer.

[0022] Optionally, the outer tube wall of the thermal insulation layer is made of quartz material, the spiral blades are made of quartz material, and the spiral blades are fixed to the outer tube wall of the thermal insulation layer by welding.

[0023] Optionally, both ends of the transmission shaft extend to the end sides of the corresponding cylindrical cavity in a dynamic sealing manner and are supported by fixed brackets, and at least one of the two ends of the transmission shaft is in transmission connection with the driving mechanism.

[0024] Optionally, the air outlet is provided at the upper end side of the cylindrical cavity, and the air inlet is provided at the lower end side of the cylindrical cavity.

[0025] Optionally, the cavity wall of the cylindrical cavity is a tube wall made of quartz material.

[0026] Optionally, there are multiple cylindrical cavities, each of which is provided with the mounting shaft and the spiral sheet, and the axes of any two cylindrical cavities are parallel to each other.

[0027] Optionally, the heating furnace body includes a furnace body thermal insulation and heating layer, which is circumferentially arranged on the outside of each of the cylindrical cavities, and a heating structure for heating the cylindrical cavities is provided in the furnace body thermal insulation and heating layer.

[0028] Optionally, the furnace body thermal insulation heating layer is constructed as a solid heat-conducting structure surrounding the outer wall of the cylindrical cavity, and the heating structure includes a plurality of electric heating rods embedded in the solid heat-conducting structure, and the electric heating rods are arranged along the circumference of each of the cylindrical cavities.

[0029] Optionally, the heat-insulating heating layer of the furnace body is constructed as a hollow heating cavity, the inner cavity wall of the hollow heating cavity is surrounded by the outer cavity wall of the cylindrical cavity, and the outer cavity wall of the hollow heating cavity is provided with a flame injection nozzle and an exhaust port.

[0030] Optionally, the inner cavity wall of the hollow heating cavity is configured as a quartz tube wall;

[0031] And / or, the exhaust port is provided at at least one of the two ends of the hollow heating cavity.

[0032] Optionally, the spiral sheet is further provided with a material-passing vent hole;

[0033] And / or, the outer edge of the spiral sheet is provided with an upward flange structure;

[0034] And / or, further comprising a feeding mechanism for supplying quartz sand to the feeding port, wherein the feeding port is provided with a vibrator for adjusting the feeding speed;

[0035] And / or, it also includes a blanking cooling mechanism, and the discharge port is connected to the feed funnel of the blanking cooling mechanism.

[0036] Compared with the background technology introduction, the above-mentioned quartz sand high-temperature chlorination purification device includes a heating furnace body, a mounting shaft and a spiral blade, wherein at least one cylindrical cavity is provided in the heating furnace body, the axis of the cylindrical cavity is arranged at an angle to the horizontal plane, the upper end side of the cylindrical cavity is provided with a feeding port, the lower end side of the cylindrical cavity is provided with a discharge port, and the two end sides of the cylindrical cavity are also provided with an air inlet and an air outlet respectively; the mounting shaft is provided in the cylindrical cavity and is coaxially arranged with the cylindrical cavity; the spiral blade is spirally arranged along the axial direction of the mounting shaft, and the inner edge of the spiral blade is fixed on the mounting shaft, the outer edge of the spiral blade cooperates with the inner cavity wall of the cylindrical cavity, and the quartz sand falling into the cylindrical cavity from the feeding port can spiral along the spiral blade and slide to the discharge port. The quartz sand high-temperature chlorination purification device, in actual application, starts the heating function of the heating furnace body, connects the air inlet and the air outlet to circulate fresh gas required for chlorination purification into the cylindrical cavity, and adds the quartz sand to be purified from the feeding port. The quartz sand will fall on the spiral piece of the mounting shaft and can slide along the spiral direction of the spiral piece to the discharge port. During the sliding process, the quartz sand will come into contact with the chlorination purification gas provided by the circulation. Under the high temperature of the heating furnace body, the quartz sand can achieve high-temperature chlorination purification. In addition, by continuously adding quartz sand material at the feeding port, the purified quartz sand is continuously discharged from the discharge port. Quartz sand can realize the continuous operation of high-temperature chlorination purification of quartz sand, which greatly improves the purification efficiency. In addition, due to the structural design of the spiral blades in the high-temperature chlorination purification process, the sliding path of the quartz sand can be extended, that is, the contact area between the quartz sand and the reaction gas is increased. At the same time, the quartz sand will continue to roll during the sliding process on the spiral blades, which helps to make the quartz sand fully contact with the equipped gas, thereby helping to improve the purification effect. In addition, the structure of the spiral blades can also play a certain turbulent role on the equipped gas, which helps to make the airflow distribution more uniform, and also helps to improve the purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 A schematic longitudinal cross-sectional view of a first high-temperature chlorination purification device for quartz sand provided in an embodiment of the present invention;

[0039] Figure 2 A schematic longitudinal section of the first quartz sand high-temperature chlorination purification device provided by the present utility model, wherein the mounting shaft is supported by a fixed bracket;

[0040] Figure 3 A schematic structural diagram of a first quartz sand high-temperature chlorination purification device provided by an embodiment of the present invention, with a cross section facing the upper end;

[0041] Figure 4 A schematic longitudinal cross-sectional view of a second quartz sand high-temperature chlorination purification device provided in an embodiment of the present invention;

[0042] Figure 5 A schematic structural diagram of a second quartz sand high-temperature chlorination purification device provided by an embodiment of the present invention, with a cross section facing the upper end;

[0043] Figure 6 A schematic structural diagram of a third quartz sand high-temperature chlorination purification device provided by an embodiment of the present invention, with a cross section facing the upper end;

[0044] Figure 7 A schematic structural diagram of a fourth quartz sand high-temperature chlorination purification device provided by an embodiment of the present invention, with a cross section facing the upper end;

[0045] Figure 8 A schematic longitudinal cross-sectional view of a fifth quartz sand high-temperature chlorination purification device provided in an embodiment of the present utility model;

[0046] Figure 9 A schematic structural diagram of a fifth quartz sand high-temperature chlorination purification device provided by an embodiment of the present invention, with the cross section facing the upper end;

[0047] Figure 10 A schematic longitudinal section of the fifth embodiment of the present invention shows a mounting shaft of a quartz sand high-temperature chlorination purification device supported by a fixed bracket (the upper end fixed bracket is not shown in the figure);

[0048] Figure 11 A schematic longitudinal cross-sectional view of a sixth quartz sand high-temperature chlorination purification device provided in an embodiment of the present utility model;

[0049] Figure 12 This is a structural schematic diagram of the sixth quartz sand high-temperature chlorination purification device provided in an embodiment of the present invention, with the cross section facing the upper end.

[0050] in, Figures 1-12 middle:

[0051] Heating furnace body 1, furnace body heat preservation and heating layer 10, electric heating rod 101, flame jet nozzle 102, exhaust port 103, quartz tube sleeve 104, cylindrical cavity 11, feeding port 111, discharging port 112, air inlet 113, and air outlet 114;

[0052] Install shaft 2, transmission shaft 21, and thermal insulation layer 22;

[0053] Spiral sheet 3;

[0054] Fix the bracket 4. DETAILED DESCRIPTION

[0055] The core of the utility model is to provide a quartz sand high-temperature chlorination purification device to solve the problems of low purification efficiency and poor purification effect of the quartz sand high-temperature chlorination purification device.

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0057] Reference Figures 1-12 The utility model provides a quartz sand high temperature chlorination purification device, comprising a heating furnace body 1, a mounting shaft 2 and a spiral sheet 3, wherein the heating furnace body 1 is provided with at least one cylindrical cavity 11, the axis of the cylindrical cavity 11 is arranged at an angle to the horizontal plane, the upper end side of the cylindrical cavity 11 is provided with a feeding port 111, the lower end side of the cylindrical cavity 11 is provided with a discharge port 112, and the two ends of the cylindrical cavity 11 are also provided with air inlets. 113 and the air outlet 114; the mounting shaft 2 is arranged in the cylindrical cavity 11 and is coaxially arranged with the cylindrical cavity 11; the spiral piece 3 is spirally arranged along the axial direction of the mounting shaft 2, and the inner edge of the spiral piece 3 is fixedly arranged on the mounting shaft 2, and the outer edge of the spiral piece 3 cooperates with the inner cavity wall of the cylindrical cavity 11; and the quartz sand falling into the cylindrical cavity from the feeding port 111 can spiral along the spiral piece 3 and slide to the discharge port 112.

[0058] In actual application, the quartz sand high-temperature chlorination purification device starts the heating function of the heating furnace body 1, and at the same time connects the air inlet 113 and the air outlet 114 to circulate fresh gas required for chlorination purification (the gas can be chlorine or a reaction gas such as a gaseous compound of chlorine) into the cylindrical cavity 11, and the quartz sand to be purified is added from the feeding port 111. The quartz sand will fall on the spiral piece 3 of the mounting shaft 2 and can slide along the spiral direction of the spiral piece 3 to the discharge port 112. During the sliding process, the quartz sand will come into contact with the chlorination purification gas provided by the circulation. Under the high temperature of the heating furnace body 1, the quartz sand can achieve high-temperature chlorination purification, and through the feeding port 111, the quartz sand can be purified by the chlorination of the quartz sand. By continuously adding quartz sand material and continuously discharging the purified quartz sand from the discharge port 112, continuous operation of high-temperature chlorination purification of quartz sand can be achieved, which greatly improves the work efficiency of purification. In addition, due to the structural design of the spiral blade 3 during the high-temperature chlorination purification process, the sliding path of the quartz sand is extended, that is, the contact area between the quartz sand and the reaction gas is increased. At the same time, the quartz sand will continue to roll during the sliding process on the spiral blade 3, which helps to make the quartz sand fully contact with the equipped gas, thereby helping to improve the purification effect. In addition, the structure of the spiral blade 3 can also play a certain turbulent role on the equipped gas, which helps to make the airflow distribution more uniform, and also helps to improve the purification effect.

[0059] It should be noted that, those skilled in the art should be able to understand that the chlorination purification gas introduced into the quartz sand high-temperature chlorination purification device is generally a high-purity gas containing chlorine, for example, chlorine or hydrogen chloride can be used. This gas reacts with impurities in quartz to purify the quartz sand without contaminating the quartz sand.

[0060] It should also be noted that the above-mentioned quartz sand high-temperature chlorination purification device can generally also include a feeding mechanism for supplying quartz sand to the feeding port 111, and the feeding port 111 is provided with a vibrator for adjusting the feeding speed. Quartz sand is fed into the feeding port 111 through the feeding mechanism, and then the feeding speed is adjusted by the vibration of the vibrator. In addition, the quartz sand high-temperature chlorination purification device can also include a discharge cooling mechanism, and the discharge port 112 is connected to the feed funnel of the discharge cooling mechanism, so that the purified quartz sand can directly enter the discharge cooling mechanism for cooling and transfer to the subsequent process. In addition, those skilled in the art should be able to understand that the heating temperature of the heating furnace body 1 of the quartz sand high-temperature chlorination purification device generally meets the requirements of being heated to above 650 degrees Celsius. For example, the heating temperature can be set to 700°C-1250°C.

[0061] In some specific embodiments, at least part of the spiral segments of the above-mentioned spiral blade 3 is constructed into a sieve hole structure, that is, the spiral blade 3 can be designed as a spiral blade with sieve holes as a whole, or one or several spiral segments of the spiral blade can be designed as a spiral blade with sieve holes, and the sieve hole structures on the spiral segments located on two adjacent layers of the spiral segment are preferably designed to be staggered, so as to prevent quartz sand from falling directly into the discharge port, and on the one hand, part of the quartz sand slides or rolls on the spiral blade 3 and can fully contact and react with the reaction gas, and on the other hand, the quartz sand falling from the sieve hole can also make the quartz sand and the reaction gas fully contact and react, and at the same time, it can effectively reduce the risk of quartz sand accumulation on the spiral blade 3.

[0062] In some specific embodiments, the gas outlet 114 is preferably arranged on the upper end side of the cylindrical cavity 11, and the gas inlet 113 is arranged on the lower end side of the cylindrical cavity 11. By designing this structural form, the reaction gas equipped is made to flow from bottom to top, and the quartz sand slides down from top to bottom along the spiral sheet 3, so that the quartz sand can be in contact with the reaction gas as much as possible, which helps to improve the chlorination purification effect. Of course, it is understandable that the method of designing the above-mentioned bottom-up airflow direction is only a preferred example of the embodiment of the utility model. In actual application, it can also be designed into other airflow directions, such as the airflow direction from the middle to the two end sides, or the direction of the airflow from the two ends to the middle, or the top-down airflow direction, etc., which are not further specifically limited here.

[0063] It is worth mentioning that the above-mentioned spiral piece 3 can be specifically constructed as a static spiral piece, that is, it can be designed as a static spiral piece. At this time, the angle between the axis of the cylindrical cavity 11 and the horizontal plane is in the range of 45°-90°. Among them, when the angle between the axis of the cylindrical cavity 11 and the horizontal plane is 90° (that is, it is arranged vertically, and the angle 90° here is specifically within the allowable error range of 90° in processing, that is, the angle 90° also includes an angle close to 90°, such as 90°±10°), it can also be called a vertical purification reaction chamber. The mounting shaft 2 is fixedly arranged in the cylindrical cavity 11, and the spiral piece 3 is stationary relative to the inner cavity wall of the cylindrical cavity 11. At this time, the quartz sand falling on the spiral piece 3 will spiral and slide along the spiral inclination direction of the spiral piece 3 under the action of gravity; when the angle between the axis of the cylindrical cavity 11 and the horizontal plane is greater than or equal to 45° and less than 90°, the cylindrical cavity 11 is arranged inclined. In addition, the slope (i.e., the inclination angle) of the spiral 3 relative to the horizontal plane is preferably in the range of 27°-85° (this range includes the endpoint values ​​of 27° and 85°). The larger the slope, the smoother the quartz sand slides, and the smaller the slope, the longer the quartz sand slides. The specific slope can be selected and designed according to actual needs, and by adjusting the slope value range of the static spiral 3, different feeding speeds can be achieved. For example, by designing the slope value range of the static spiral 3 to be 27°-85°, the feeding speed can be controlled to be 40-1000 kg / h. The corresponding slope can be selected according to the feeding speed requirement, and ultimately the quartz sand can be uniformly spiraled and slid along the spiral at the set speed. No further specific restrictions are made here. In addition, when the spiral 3 is configured as a static spiral, the outer edge of the spiral 3 can be fitted with the inner wall of the cylindrical cavity 11 in a clearance fit or directly fixed to the inner wall of the cylindrical cavity 11.

[0064] In some specific embodiments, the spiral piece 3 can also be designed as a dynamic spiral piece. In this case, the quartz sand high-temperature chlorination purification device can also include a driving mechanism. The mounting shaft 2 is rotatably arranged in the cylindrical cavity 11. The outer edge of the spiral piece 3 is gap-matched with the inner cavity wall of the cylindrical cavity 11. The driving mechanism is connected to the mounting shaft 2 in a transmission manner to drive the spiral piece 3 to rotate by driving the mounting shaft 2 to rotate. By designing a structural form in which the spiral piece 3 dynamically rotates relative to the inner cavity wall of the cylindrical cavity 11, the quartz sand slides or rolls on the spiral piece 3 more smoothly, reducing the risk of quartz sand accumulation. At the same time, it also enhances the airflow disturbance effect, helps to make the airflow and quartz sand fully and evenly contact, thereby improving the purification effect. In addition, since the spiral blade 3 is dynamically rotating relative to the inner wall of the cylindrical cavity 11, the angle between the axis of the cylindrical cavity 11 and the horizontal plane can be specifically designed to be a right angle, that is, the cylindrical cavity 11 is arranged vertically, which can also be called a vertical purification reaction chamber. By designing it into this structural form, the quartz sand can slide down more smoothly; the angle between the axis of the cylindrical cavity 11 and the horizontal plane can also be designed to be an acute angle (the specific value is greater than 0° and less than 90°), that is, the cylindrical cavity 11 is arranged at an angle, which is also called a horizontal purification reaction chamber. As long as the spiral blade 3 is rotated, the quartz sand can slide along the spiral blade 3 toward the discharge port 112. In actual application, the arrangement can be selected according to actual needs and no further specific restrictions are made here.

[0065] It should be noted that the cavity wall of the cylindrical cavity 11 can specifically be a tube wall made of quartz material. By designing it into this structural form, it can not only meet the high-temperature heating requirements, but also avoid reaction with the reaction gas equipped with quartz sand purification, thereby ensuring the stability of the use of the cylindrical cavity 11. Of course, it is understandable that designing the cavity wall of the cylindrical cavity 11 as quartz material is only a preferred example of an embodiment of the present utility model. In actual application, it can also be designed to be other materials that can meet the high-temperature heating requirements and do not react with the reaction gas equipped with quartz sand purification. No more specific limitations are made here.

[0066] In other specific embodiments, the mounting shaft 2 may include a transmission shaft 21 and a heat insulating layer 22 disposed on the outside of the transmission shaft 21, with the inner edge of the spiral blade 3 fixedly mounted on the outer wall of the heat insulating layer 22. By designing the mounting shaft 2 in the above-described structural form, the high temperature within the cylindrical cavity 11 can be reduced from being transferred to the transmission shaft 21 and affecting the service life of the transmission shaft 21, while also avoiding energy loss.

[0067] In a further embodiment, the outer tube wall of the thermal insulation layer 22 is preferably designed to be made of quartz material, and the spiral blade 3 is preferably designed to be made of quartz material. At that time, the spiral blade 3 can be fixed to the outer tube wall of the thermal insulation layer 22 by welding. By designing into this structural form, not only the high temperature resistance of the spiral blade 3 and the outer tube wall of the thermal insulation layer 22 is guaranteed, but also chemical reaction with the reaction gas prepared by quartz sand purification is avoided, thereby ensuring the structural stability of the spiral blade 3 and the thermal insulation layer 22. It should be noted that the outer tube wall of the thermal insulation layer 22 and the transmission shaft 21 can be specifically, but not limited to, filled with thermal insulation materials such as ceramic fiber, as long as the required thermal insulation function can be achieved.

[0068] In other specific embodiments, the ends of the transmission shaft 21 extend to the corresponding ends of the cylindrical cavity 11 in a dynamic sealing manner and are supported by a fixed bracket 4. The transmission shaft 21 can rotate freely on the fixed bracket 4, and at least one of the ends of the transmission shaft 21 is in transmission connection with a drive mechanism. The drive mechanism can be, but is not limited to, a motor drive. The transmission shaft 21 can be directly connected to the drive mechanism or can be connected to the drive mechanism through a transmission mechanism such as a belt, chain, or gear. The design of the fixed bracket 4 makes the rotation of the transmission shaft 21 more stable and reliable, reducing the design requirements for the end structure of the cylindrical cavity 11. In addition, dynamic sealing specifically refers to dynamic rotary sealing, which utilizes the friction between the seal and the rotating shaft and the elastic deformation of the seal itself to achieve sealing. When the rotating shaft rotates, the seal is subjected to the friction force of the rotating shaft surface, causing it to fit tightly against the rotating shaft. At the same time, the elastic deformation of the seal itself can also compensate for minor unevenness on the rotating shaft surface, further improving the sealing effect. In dynamic rotary sealing, the material selection of the seal is very important. Different materials have varying levels of wear resistance, corrosion resistance, and high-temperature resistance, and their selection depends on the specific application scenario. Furthermore, the structural design of the seal must consider factors such as the speed of the rotating shaft, the properties of the oil, and the temperature to ensure the stability and reliability of the sealing effect.

[0069] In other specific embodiments, the number of the cylindrical cavities 11 can be designed to be one or more, and when the number of the cylindrical cavities 11 is multiple, each cylindrical cavity 11 is provided with a mounting shaft 2 and a spiral sheet 3, and the axes of any two cylindrical cavities 11 are parallel to each other. By designing multiple cylindrical cavities 11 in the heating furnace body 1, one heating furnace body 1 can heat multiple cylindrical cavities 11, which helps to save resources. Specifically, referring to Figure 4 、 Figure 5 、 Figure 11 and Figure 12As shown, the heating furnace body 1 is designed with two cylindrical cavities 11; for example, referring to Figure 6 As shown, the heating furnace body 1 is designed with three cylindrical cavities 11; for example, referring to Figure 7 As shown, four cylindrical cavities 11 are designed in the heating furnace body 1. In actual application, the number of cylindrical cavities 11 can be configured according to actual needs, and no further specific limitation is made here.

[0070] In other specific embodiments, the heating furnace body 1 may include a furnace body thermal insulation and heating layer 10, which is circumferentially arranged around the outside of each cylindrical cavity 11, preferably but not limited to being arranged in contact with the outer wall of the cylindrical cavity 11. For example, it may be designed to have a certain preset gap, and a heating structure for heating the cylindrical cavity 11 is provided in the furnace body thermal insulation and heating layer 10. The design of the furnace body thermal insulation and heating layer 10 helps reduce energy loss in the heating furnace body 1 while better ensuring the heating effect of the cylindrical cavity 11.

[0071] In a further embodiment, referring to Figure 1-Figure 7 As shown, the above-mentioned furnace body heat preservation and heating layer 10 can be specifically constructed as a solid heat-conducting structure arranged around the outer wall of the cylindrical cavity 11, such as, but not limited to, a solid heat-conducting structure arranged in contact with the outer wall of the cylindrical cavity 11, the outer shell wall of the solid heat-conducting structure is preferably designed as a heat-insulating material, and the inner side is designed as a heat-conducting material; the heating structure can specifically include a plurality of electric heating rods 101 embedded in the heat-conducting material of the solid heat-conducting structure, and the electric heating rods 101 are arranged along the circumference of each cylindrical cavity 11. The electric heating function can be achieved by connecting the electric heating rods 101 to the corresponding power supply equipment, and then the heat is transferred to the cylindrical cavity 11 through the heat-conducting material of the solid heat-conducting structure. By designing it into this structural form, the heating structure arrangement is simpler and easier to implement.

[0072] Of course, it can be understood that the above-mentioned heating structure and the structural form of the furnace body heat preservation heating layer 10 are only preferred examples of the embodiment of the utility model. In the actual application process, other structural forms can also be designed. For example, Figures 8-12As shown, the furnace body thermal insulation and heating layer 10 can also be constructed as a hollow heating cavity, and the inner cavity wall of the hollow heating cavity is arranged around the outer cavity wall of the cylindrical cavity 11, for example, it can be but not limited to being arranged in close contact with the outer cavity wall of the cylindrical cavity 11, and a flame jet nozzle 102 and an exhaust port 103 are provided on the outer cavity wall of the hollow heating cavity. The flame jet nozzle 102 can be specifically connected to a fuel gas pipeline (such as a natural gas pipeline) and a combustion-supporting gas pipeline (such as an oxygen pipeline), and an igniter (such as an electric ignition) is designed in the flame jet nozzle 102. By opening the fuel gas valve on the fuel gas pipeline and the combustion-supporting gas valve on the combustion-supporting gas pipeline, and then igniting through the igniter, the flame jet nozzle 102 can spray flame into the hollow heating cavity, thereby heating the inner cavity wall of the hollow heating cavity, and transferring heat to the outer cavity wall of the cylindrical cavity 11 through the inner cavity wall of the hollow heating cavity, thereby heating the cylindrical cavity 11. The number of the flame spray nozzles 102 is preferably designed to be multiple and evenly arranged on the outer cavity wall of the hollow heating cavity.

[0073] In a further embodiment, in order to make the outer wall of the cylindrical cavity 11 heated more evenly, the inner wall of the upper hollow heating cavity is preferably constructed as a quartz tube wall 104, such as a quartz tube sleeve 104 sleeved on the outer wall of the cylindrical cavity 11. On the one hand, it ensures the uniformity of heating of the outer wall of the cylindrical cavity 11, and on the other hand, it avoids local overheating of the outer wall of the cylindrical cavity 11 and affects the service life of the cylindrical cavity 11.

[0074] It should be noted that the exhaust port 103 can be specifically arranged at at least one of the two ends of the hollow heating cavity, which makes it more convenient to arrange the exhaust port 103. The utility model is preferably designed at the upper end side of the hollow heating cavity.

[0075] It should also be noted that the spiral piece 3 may also be provided with a material vent hole. By designing the material vent hole on the spiral piece 3, the reaction gas flow can not only flow through the spiral slideway of the spiral piece 3, but also flow through the material vent hole. The material vent hole can increase the contact opportunity between the reaction gas flow and the quartz sand, especially the quartz sand on the side in contact with the lower surface of the spiral piece 3. The material vent hole is preferably designed to be multiple and evenly arranged on the spiral piece 3. Of course, it is understandable that the method of designing the material vent hole on the spiral piece 3 is only a preferred embodiment of the present utility model. In actual application, the solution of not providing the vent hole on the spiral piece 3 should also be within the scope of protection of the present utility model.

[0076] In some specific embodiments, in order to prevent the quartz sand on the spiral piece 3 from blocking the gap between the outer edge of the spiral piece 3 and the inner wall of the cylindrical cavity 11 during the sliding process, the outer edge of the spiral piece 3 can also be provided with an upward flange structure, and the size of the flange structure can be designed according to actual needs, such as 2cm-3cm.

[0077] It should also be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0078] As used in this application and the claims, unless the context clearly indicates an exception, the terms "a," "an," "an," and / or "the" are not intended to refer to the singular and may include the plural, unless the context clearly indicates otherwise. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements. The phrase "comprises a..." does not preclude the presence of additional identical elements in the process, method, product, or apparatus that includes the elements.

[0079] In the description of the embodiments of this application, unless otherwise specified, " / " represents or. For example, A / B can represent A or B. "And / or" in this article is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of this application, "plurality" means two or more than two.

[0080] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0081] Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the core idea of ​​the present invention. Although the present application has been described with reference to preferred embodiments, various improvements can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A quartz sand high temperature chlorination purification device, characterized in that: include: A heating furnace body (1) is provided with at least one cylindrical cavity (11), wherein the axis of the cylindrical cavity (11) is arranged at an angle to a horizontal plane, a feeding port (111) is provided at the upper end side of the cylindrical cavity (11), a discharge port (112) is provided at the lower end side of the cylindrical cavity (11), and an air inlet (113) and an air outlet (114) are provided at both ends of the cylindrical cavity (11); A mounting shaft (2) is disposed in the cylindrical cavity (11) and is coaxially arranged with the cylindrical cavity (11); The spiral piece (3) is spirally arranged along the axial direction of the installation shaft (2), and the inner edge of the spiral piece (3) is fixedly arranged on the installation shaft (2), and the outer edge of the spiral piece (3) is matched with the inner cavity wall of the cylindrical cavity (11); The quartz sand falling into the cylindrical cavity (11) from the feeding port (111) can spirally slide along the spiral sheet (3) and fall to the discharge port (112).

2. The quartz sand high-temperature chlorination purification device according to claim 1, characterized in that: At least part of the spiral segments of the spiral sheet (3) is configured as a sieve hole structure, and the sieve hole structures on the spiral segments of two adjacent layers on the spiral segment are staggered.

3. The quartz sand high temperature chlorination purification device according to claim 1, characterized in that: The spiral sheet (3) is configured as a static spiral sheet; The mounting shaft (2) is fixedly arranged in the cylindrical cavity (11), the spiral blade (3) is stationary relative to the inner cavity wall of the cylindrical cavity (11), and the angle between the axis of the cylindrical cavity (11) and the horizontal plane is in the range of 45°-90°.

4. The quartz sand high-temperature chlorination purification device according to claim 3, characterized in that: The slope of the spiral blade relative to the horizontal plane ranges from 27° to 85°.

5. The quartz sand high-temperature chlorination purification device according to claim 1, characterized in that: The spiral sheet (3) is configured as a dynamic spiral sheet; The quartz sand high-temperature chlorination purification device further comprises a driving mechanism, wherein the mounting shaft (2) is rotatably arranged in the cylindrical cavity (11), the outer edge of the spiral piece (3) is gap-matched with the inner cavity wall of the cylindrical cavity (11), and the driving mechanism is in transmission connection with the mounting shaft (2) so as to drive the spiral piece (3) to rotate by driving the mounting shaft (2), and the angle between the axis of the cylindrical cavity (11) and the horizontal plane is a right angle or an acute angle.

6. The quartz sand high-temperature chlorination purification device according to claim 5, characterized in that: The installation shaft (2) comprises a transmission shaft (21) and a heat insulation layer (22) arranged outside the transmission shaft (21), and the inner edge of the spiral blade (3) is fixedly arranged on the outer tube wall of the heat insulation layer (22).

7. The quartz sand high-temperature chlorination purification device according to claim 6, characterized in that: The outer tube wall of the heat insulation layer (22) is made of quartz material, the spiral blade (3) is made of quartz material, and the spiral blade (3) is fixed to the outer tube wall of the heat insulation layer (22) by welding.

8. The quartz sand high-temperature chlorination purification device according to claim 6, characterized in that: Both ends of the transmission shaft (21) extend to the end sides of the corresponding cylindrical cavity (11) in a dynamic sealing manner and are supported by a fixed bracket (4). At least one of the two ends of the transmission shaft (21) is in transmission connection with the driving mechanism.

9. The quartz sand high-temperature chlorination purification device according to claim 1, characterized in that: The air outlet (114) is provided at the upper end side of the cylindrical cavity (11), and the air inlet (113) is provided at the lower end side of the cylindrical cavity (11).

10. The quartz sand high-temperature chlorination purification device according to claim 1, characterized in that: The cavity wall of the cylindrical cavity (11) is a tube wall made of quartz material.

11. The quartz sand high-temperature chlorination purification device according to claim 1, characterized in that: There are multiple cylindrical cavities (11), each of which is provided with the mounting shaft (2) and the spiral sheet (3), and the axes of any two cylindrical cavities (11) are parallel to each other.

12. The quartz sand high-temperature chlorination purification device according to claim 1, characterized in that: The heating furnace body (1) comprises a furnace body heat-insulating heating layer (10), the furnace body heat-insulating heating layer (10) being circumferentially arranged outside each cylindrical cavity (11), and a heating structure for heating the cylindrical cavity (11) being arranged inside the furnace body heat-insulating heating layer (10).

13. The quartz sand high-temperature chlorination purification device according to claim 12, characterized in that: The furnace body heat-insulating heating layer (10) is constructed as a solid heat-conducting structure arranged around the outer wall of the cylindrical cavity (11), and the heating structure includes a plurality of electric heating rods (101) embedded in the solid heat-conducting structure, and the electric heating rods (101) are arranged along the circumference of each cylindrical cavity (11).

14. The quartz sand high-temperature chlorination purification device according to claim 12, characterized in that: The furnace body heat-insulating heating layer (10) is constructed as a hollow heating cavity, the inner cavity wall of the hollow heating cavity is arranged around the outer cavity wall of the cylindrical cavity (11), and a flame injection nozzle (102) and an exhaust port (103) are provided on the outer cavity wall of the hollow heating cavity.

15. The quartz sand high-temperature chlorination purification device according to claim 14, characterized in that: The inner wall of the hollow heating cavity is configured as a quartz tube wall; And / or, the exhaust port (103) is provided at at least one of the two ends of the hollow heating cavity.

16. The quartz sand high-temperature chlorination purification device according to any one of claims 1 to 15, characterized in that: The spiral blade (3) is also provided with a material-passing vent hole; And / or, the outer edge of the spiral sheet (3) is provided with an upward flange structure; And / or, further comprising a feeding mechanism for supplying quartz sand to the feeding port (111), the feeding port (111) being provided with a vibrator for adjusting a feeding speed; And / or, it further includes a material discharging and cooling mechanism, and the discharge port (112) is connected to the feed funnel of the material discharging and cooling mechanism.

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