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 and a plurality of inclined plates, at least one cylindrical cavity is arranged in the heating furnace body, a feed port is arranged on the upper end side of the cylindrical cavity, a discharge port is arranged on the lower end side of the cylindrical cavity, and the inclined plates are arranged on the feed port and the discharge port. An air inlet and an air outlet are respectively formed in two end sides of the cylindrical cavity; the multiple inclined plates are all arranged in the cylindrical cavity and are sequentially arranged in the axis direction of the cylindrical cavity, and a hollowed-out notch is formed between the lower edge of the inclined plate located on the upper layer in any two adjacent inclined plates and the inner cavity wall of the cylindrical cavity. The hollow gap is arranged on the inclined plate, so that quartz sand on the inclined plate on the upper layer can slide to the inclined plate below the hollow gap through the hollow gap until the quartz sand falls into the discharge port, continuous operation of high-temperature chlorination purification of the quartz sand is realized, and the purification working efficiency is greatly improved; in addition, the gliding path of the quartz sand can be prolonged, and the purification effect can be improved.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature purification technology of quartz sand, and more specifically, to a high-temperature chlorination purification device for quartz sand. Background Technology

[0002] 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 main raw material for producing high-purity quartz glass tubes / rods and quartz glass crucibles. Quartz glass is a single-component glass made of silicon dioxide. This type of glass has high hardness and possesses a series of excellent physical and chemical properties, including high temperature resistance, low coefficient of expansion, thermal shock resistance, corrosion resistance, good insulation, and high light transmittance.

[0003] The raw ore for high-purity quartz sand is natural quartz ore. Besides quartz, quartz ore typically contains various impurity minerals, such as mica, feldspar, and iron-titanium oxides. Quartz itself often contains certain metallic or non-metallic element impurities, as well as fluid impurities, due to crystal structure defects or micro-cracks. Most impurities can be removed through flotation, magnetic separation, gravity separation, acid leaching, and calcination, but it is difficult to achieve the higher standards required for certain elements in high-purity quartz sand.

[0004] The purification of quartz sand in the present technology is mainly accomplished by using a high-temperature chlorination purification device for quartz sand. However, most of the current high-temperature chlorination purification devices for quartz sand cannot make the quartz particles and the reaction gas come into uniform contact and react, resulting in low purification efficiency and poor purification effect.

[0005] In summary, how to solve the problems of low purification efficiency and poor purification effect in high-temperature chlorination purification devices for quartz sand has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the present invention provides a high-temperature chlorination purification device for quartz sand to solve the problems of low purification efficiency and poor purification effect in high-temperature chlorination purification devices for quartz sand.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A high-temperature chlorination purification device for quartz sand includes:

[0009] A heating furnace body is provided inside, which has at least one cylindrical cavity. The axis of the cylindrical cavity is arranged perpendicular to the horizontal plane. A feeding port is provided on the upper end of the cylindrical cavity, and a discharge port is provided on the lower end of the cylindrical cavity. An air inlet and an air outlet are also provided on both ends of the cylindrical cavity, respectively.

[0010] Multiple inclined plates are disposed within the cylindrical cavity and arranged sequentially along the axial direction of the cylindrical cavity;

[0011] Wherein, any two adjacent inclined plates are inclined in opposite directions, and a hollow notch is formed between the lower edge of the upper inclined plate and the inner wall of the cylindrical cavity, so that the quartz sand on the upper inclined plate can slide through the hollow notch to the inclined plate below it, until it falls into the discharge port.

[0012] Optionally, the inclined plate is configured as a perforated plate, and the holes of any two adjacent inclined plates are staggered.

[0013] Optionally, the angle between the inclined plate and the cross-section of the cylindrical cavity ranges from 25° to 75°.

[0014] Optionally, the inclined plate is also provided with material passage and air passage holes.

[0015] Optionally, it further includes at least one fixed support column disposed within the cylindrical cavity, the fixed support column being parallel to or coincident with the axis of the cylindrical cavity, and each of the inclined plates being fixed to each of the fixed support columns.

[0016] Optionally, a material discharge gap is formed on the inclined plate at the connection position between it and the fixed support, and the material discharge gap is located on the material receiving side of the fixed support.

[0017] And / or, a reinforcing bracket is provided on the bottom surface of the inclined plate at the connection position between it and the fixed support column, and the reinforcing bracket is located on the material dropping side of the fixed support column.

[0018] Optionally, the air outlet is located on the upper end side of the cylindrical cavity, and the air inlet is located on the lower end side of the cylindrical cavity.

[0019] Optionally, the cavity wall of the cylindrical cavity is made of quartz material.

[0020] Optionally, there are multiple cylindrical cavities, each of which is provided with an inclined plate, and the axes of any two cylindrical cavities are parallel to each other.

[0021] Optionally, the heating furnace body includes a furnace body insulation and heating layer, which is circumferentially arranged around the outside of each of the cylindrical cavities, and a heating structure for heating the cylindrical cavities is provided inside the furnace body insulation and heating layer.

[0022] Optionally, the furnace body insulation and heating layer is configured as a solid heat-conducting structure surrounding the outer wall of the cylindrical cavity. The heating structure includes a plurality of electric heating rods embedded in the solid heat-conducting structure, and the electric heating rods are arranged circumferentially along each of the cylindrical cavities.

[0023] Optionally, the furnace body insulation and heating layer is configured as a hollow heating cavity, the inner wall of the hollow heating cavity surrounds the outer wall of the cylindrical cavity, and the outer wall of the hollow heating cavity is provided with a flame nozzle and an exhaust port.

[0024] Optionally, the inner wall of the hollow heating cavity is constructed as a quartz tube sleeve;

[0025] And / or, the exhaust port is located at at least one of the two ends of the hollow heating cavity.

[0026] Optionally, it also includes a feeding mechanism for supplying quartz sand to the feeding port, the feeding port being equipped with a vibrator for adjusting the feeding speed;

[0027] And / or, it also includes a material discharge cooling mechanism, wherein the discharge port is connected to the material discharge cooling mechanism's feed funnel;

[0028] And / or, the heating furnace body and the cylindrical cavity are configured to be detachably connected;

[0029] And / or, a support structure is provided on the outside of the heating furnace body, the support structure including a tail support for the tail of the heating furnace body and a head support for the head of the heating furnace body.

[0030] Compared to the background description, the aforementioned high-temperature chlorination purification device for quartz sand includes a heating furnace body and multiple inclined plates. The heating furnace body contains at least one cylindrical cavity, the axis of which is perpendicular to the horizontal plane. A feed port is located at the upper end of the cylindrical cavity, and a discharge port is located at the lower end. An air inlet and an air outlet are also located at both ends of the cylindrical cavity. Multiple inclined plates are arranged within the cylindrical cavity, sequentially along its axis. Any two adjacent inclined plates are inclined in opposite directions, and a perforated notch is formed between the lower edge of the upper inclined plate and the inner wall of the cylindrical cavity, allowing the quartz sand on the upper inclined plate to slide through the perforated notch to the inclined plate below it, until it falls into the discharge port. In practical application, this high-temperature chlorination purification device for quartz sand activates the heating function of the furnace body, connects the inlet and outlet to circulate fresh chlorination purification gas into the cylindrical cavity, and adds the quartz sand to be purified through the feed port. The quartz sand falls onto the top inclined plate, slides down along it, and then slides through the perforated gap between the inclined plate and the inner wall of the cylindrical cavity to the next top inclined plate. The quartz sand slides down the next top inclined plate and through the perforated gap to the lower inclined plate. The quartz sand slides down in the above manner and passes through the perforated gaps of each inclined plate until it falls into the discharge port. During its descent, the quartz sand comes into contact with the circulated chlorination purification gas, and under the high temperature of the furnace body, the quartz sand... Quartz sand can be purified by high-temperature chlorination. By continuously adding quartz sand material at the feed port and continuously discharging purified quartz sand at the discharge port, continuous high-temperature chlorination purification of quartz sand can be achieved, greatly improving the purification efficiency. In addition, as the quartz sand slides down the inclined plates in sequence during the high-temperature chlorination purification process, the downward path of the quartz sand is extended, which increases the contact area between the quartz sand and the reactant gas. At the same time, the quartz sand will continuously roll as it slides on the inclined plates, which helps to ensure that the quartz sand and the prepared gas are in full contact, thereby improving the purification effect. Furthermore, the structure of the sequentially arranged inclined plates can also play a certain role in turbulence of the prepared gas, which helps to make the airflow distribution more uniform, which also helps to improve the purification effect. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1A longitudinal section diagram of the high-temperature chlorination purification device for quartz sand provided in this embodiment of the utility model;

[0033] Figure 2 A structural schematic diagram showing the corresponding hollowed-out notch positions of two adjacent inclined plates provided in an embodiment of this utility model;

[0034] Figure 3 A schematic diagram of the internal structure of the high-temperature chlorination purification device for quartz sand provided in this embodiment of the utility model from a side view.

[0035] Figure 4 A schematic diagram of the longitudinal section of a high-temperature chlorination and purification device for quartz sand with fixed support columns provided in an embodiment of this utility model;

[0036] Figure 5 A schematic diagram of the structure for setting a material dropping gap between two adjacent inclined plates corresponding to the fixed support positions in an embodiment of this utility model;

[0037] Figure 6 A schematic diagram of a structure for setting up a reinforcing bracket at the corresponding fixed support position of two adjacent inclined plates according to an embodiment of this utility model;

[0038] Figure 7 A schematic diagram of the material drop gap on the inclined plate corresponding to three fixed supports, provided in an embodiment of this utility model;

[0039] Figure 8 A schematic diagram showing the separation of the heating furnace body and the cylindrical cavity provided in this embodiment of the utility model;

[0040] Figure 9 A longitudinal section diagram of the high-temperature chlorination purification device for quartz sand when the furnace body insulation and heating layer is constructed as a hollow heating cavity, as provided in this embodiment of the utility model.

[0041] Figure 10 This is a cross-sectional view of the flame nozzle provided in an embodiment of the present invention.

[0042] in, Figures 1-10 middle:

[0043] Heating furnace body 1, furnace body insulation and heating layer 10, furnace inner cavity 100, electric heating rod 101, furnace top cover 102, exhaust port 103, quartz tube sleeve 104, cylindrical cavity 11, feeding port 111, discharging port 112, air inlet 113, air outlet 114;

[0044] Fixed support 2;

[0045] Inclined plate 3, hollow notch 30, blanking gap 31, reinforcing bracket 32;

[0046] Tail support 41, head support 42;

[0047] 5. Flame nozzle, 50. Gas inlet, 51. Air inlet, 52. Mixing chamber, 53. Follow-up nozzle, 54. Ignition electrode, 55. Flame detection electrode, 56. Mixed gas, 57. Detailed Implementation

[0048] The core of this utility model lies in providing a high-temperature chlorination purification device for quartz sand, which solves the problems of low purification efficiency and poor purification effect in high-temperature chlorination purification devices for quartz sand.

[0049] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0050] Reference Figures 1-10 This utility model provides a high-temperature chlorination purification device for quartz sand, including a heating furnace body 1 and multiple inclined plates 3. The heating furnace body 1 contains at least one cylindrical cavity 11, the axis of which is arranged perpendicular to the horizontal plane. This perpendicular arrangement can be absolutely perpendicular or approximately perpendicular (i.e., perpendicular within the allowable error range of processing), for example, 90°±10°. A feeding port 111 is provided at the upper end of the cylindrical cavity 11, and a discharge port 112 is provided at the lower end of the cylindrical cavity 11. The cavity 11 is provided with an air inlet 113 and an air outlet 114 at both ends respectively; multiple inclined plates 3 are arranged in the cylindrical cavity 11 and are arranged sequentially along the axial direction of the cylindrical cavity 11; any two adjacent inclined plates 3 are inclined in opposite directions, and a hollow notch 30 is formed between the lower edge of the upper inclined plate 3 and the inner wall of the cylindrical cavity 11, so that the quartz sand on the upper inclined plate 3 can slide down to the inclined plate 3 below it through the hollow notch 30 until it falls into the discharge port 112.

[0051] In practical application, this high-temperature chlorination purification device for quartz sand activates the heating function of the furnace body 1, connects the inlet 113 and outlet 114 to circulate fresh chlorination purification gas into the cylindrical cavity 11, and adds the quartz sand to be purified through the feed inlet 111. The quartz sand falls onto the top inclined plate 3, slides down along the inclined plate 3, and slides through the perforation 30 between the inclined plate 3 and the inner wall of the cylindrical cavity 11 to the next top inclined plate 3. The quartz sand slides down the next top inclined plate 3 and through the perforation 30 to the next inclined plate 3. The quartz sand slides down in the above manner and through the perforation 30 of each inclined plate 3 until it falls into the outlet 112. During the descent, the quartz sand comes into contact with the circulating chlorination purification gas. Under the high temperature of the heating furnace body 1, quartz sand can be purified by high-temperature chlorination. By continuously adding quartz sand material through the feeding port 111 and continuously discharging purified quartz sand through the discharge port 111, continuous operation of high-temperature chlorination purification of quartz sand can be achieved, greatly improving the purification efficiency. In addition, as the quartz sand slides down the inclined plates 3 in sequence during the high-temperature chlorination purification process, the downward path of the quartz sand is extended, which increases the contact area between the quartz sand and the reaction gas. At the same time, the quartz sand will continuously tumble as it slides on the inclined plates 3, which helps to ensure that the quartz sand and the prepared gas are in full contact, thereby helping to improve the purification effect. Furthermore, the structure of the sequentially arranged inclined plates 3 can also play a certain role in turbulence of the prepared gas, which helps to make the airflow distribution more uniform, which also helps to improve the purification effect.

[0052] It should be noted that those skilled in the art should understand that the chlorination purification gas introduced into the high-temperature chlorination purification device for quartz sand is generally a high-purity gas containing chlorine, such as chlorine or hydrogen chloride. This gas reacts with impurities in the quartz to purify the quartz sand without contaminating it.

[0053] It should also be noted that the aforementioned high-temperature chlorination purification device for quartz sand may further include a feeding mechanism for supplying quartz sand to the feeding port 111. The feeding port 111 is equipped with a vibrator for adjusting the feeding speed. Quartz sand is fed into the feeding port 111 through the feeding mechanism, and the feeding speed is adjusted by the vibration of the vibrator. Additionally, the high-temperature chlorination purification device for quartz sand may also include a discharge cooling mechanism. 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 then proceed to subsequent processes. Furthermore, those skilled in the art should understand that the heating temperature of the furnace body 1 of the high-temperature chlorination purification device for quartz sand is generally sufficient to heat to above 650 degrees Celsius, for example, the heating temperature can be set to 700℃-1250℃.

[0054] In some specific implementations, the aforementioned inclined plate 3 can be constructed as a porous plate, with the holes of any two adjacent inclined plates 3 arranged in a staggered manner. This design allows some of the quartz sand to slide or roll on the alternately inclined plates 3 and fully contact and react with the reactive gas. On the other hand, the staggered holes of the quartz sand also allow it to fall and fully contact and react with the reactive gas, while effectively reducing the risk of quartz sand accumulation.

[0055] In some specific implementations, the angle between the inclined plate 3 and the cross-section of the cylindrical cavity 11 ranges from 25° to 75°. A larger angle allows for smoother quartz sand sliding, but reduces the number of inclined plates 3 that can be arranged within a limited space. Conversely, a smaller angle allows for a larger number of inclined plates 3 that can be arranged within a limited space, resulting in a longer quartz sand sliding path. The specific angle value can be selected and designed according to actual needs.

[0056] In some other specific embodiments, the inclined plate 3 may also be provided with material passage and ventilation holes. By designing material passage and ventilation holes on the inclined plate 3, the reaction gas flow can flow not only through the perforated notches of the sequentially arranged inclined plate 3, but also through the material passage and ventilation holes. Furthermore, the material passage and ventilation holes can increase the contact opportunity between the reaction gas flow and the quartz sand, especially the quartz sand in contact with the sliding side of the inclined plate 3. Preferably, multiple material passage and ventilation holes are designed and evenly distributed on the inclined plate 3. It is understood that the method of designing material passage and ventilation holes on the inclined plate 3 is merely a preferred embodiment of the present invention; in actual applications, schemes where no ventilation holes are provided on the inclined plate 3 should also be within the protection scope of the present invention.

[0057] In some specific implementation plans, refer to Figures 4-7 As shown, the above-mentioned high-temperature chlorination purification device for quartz sand may further include at least one fixed support column 2 disposed within the cylindrical cavity 11. The fixed support column 2 is parallel to or coincides with the axis of the cylindrical cavity 11, and each inclined plate 3 is fixed to each fixed support column 2. The main function of the fixed support column 2 is to strengthen the structure of each inclined plate 3. Its specific diameter and number can be selected and arranged according to actual needs. For example, it can be a single column coinciding with the axis of the cylindrical cavity 11, or multiple columns parallel to the axis of the cylindrical cavity 11, such as those shown in the figure. Figure 7The design shown includes three fixed support pillars 2. Furthermore, these fixed support pillars 2 can be, but are not limited to, quartz pillars, as the inclined plate 3 is typically made of quartz. By designing the fixed support pillars 2 as quartz pillars, the connection between the fixed support pillars 2 and the inclined plate 3 can be welded. In this case, welding can be chosen between the inclined plate 3 and the inner wall of the cylindrical cavity 11, depending on the actual needs and the complexity of the manufacturing process. The design of the fixed support pillars 2 makes the fixed position of the inclined plate 3 more stable and reliable.

[0058] In a further implementation plan, refer to Figures 5-7 As shown, a material discharge gap 31 can also be formed at the connection position between the inclined plate 3 and the fixed support 2, and the material discharge gap 31 is located on the material receiving side of the fixed support 2. This design can minimize the accumulation or residue of quartz sand at the connection position between the fixed support 2 and the inclined plate 3. This is because if the quartz sand is exposed to high temperature for a long time, the residual quartz sand will adhere to the fixed support 2 and accumulate around the fixed support 2. This will not only cause the new quartz sand to flow down unevenly, affecting the stability of the output, but also cause the accumulated part to be heated for a long time. When the fixed support 2 is a quartz column, it will cause the quartz column glass to "crystallize", and impurities will be discharged outward, which will contaminate the quartz sand and weaken the high-temperature purification effect.

[0059] In some other specific implementations, a reinforcing bracket 32 ​​may be provided at the connection position between the bottom surface of the inclined plate 3 and the fixed support column 2, and the reinforcing bracket 32 ​​is located on the material dropping side of the fixed support column 2. By designing the reinforcing bracket 32, the connection between the inclined plate 3 and the fixed support column 2 becomes more stable and reliable.

[0060] It should be noted that the material drop gap 31 and the reinforcing bracket 32 ​​mentioned above can be arranged simultaneously or one of them can be arranged separately. Both are within the protection scope of this invention. In actual application, the choice can be made according to actual needs.

[0061] In some specific implementations, the air outlet 114 is preferably located on the upper end of the cylindrical cavity 11, and the air inlet 113 is located on the lower end of the cylindrical cavity 11. This structural design allows the supplied reactive gas to flow from bottom to top, ensuring that the quartz sand, as it passes through the flat sieve plate 3 layer by layer, can contact the reactive gas as much as possible, thus improving the chlorination purification effect. It is understood that the above-mentioned bottom-to-top airflow direction is merely a preferred example of this utility model embodiment. In actual applications, other airflow directions can be designed, such as airflow from the middle to both ends, airflow from both ends to the middle, or even a top-to-bottom airflow direction, etc., without further specific limitations.

[0062] It should be noted that the cavity wall of the aforementioned cylindrical cavity 11 can specifically be made of quartz material. This structural design not only meets the high-temperature heating requirements but also prevents reaction with the reactive gas used in quartz sand purification, ensuring the stability of the cylindrical cavity 11 in use. It is understood that designing the cavity wall of the cylindrical cavity 11 as quartz material is merely a preferred example of this embodiment. In practical applications, it can be designed with other materials that meet the high-temperature heating requirements and do not react with the reactive gas used in quartz sand purification; no further specific limitations are made here.

[0063] In addition, the cylindrical cavity 11 can be designed as a cylindrical cavity or a cylindrical cavity of other shapes, all of which are within the protection scope of the present invention, and no further specific limitations are made here.

[0064] In other specific implementations, the number of cylindrical cavities 11 can be one or multiple. When there are multiple cylindrical cavities 11, each cylindrical cavity 11 is equipped with an inclined plate 3, and the axes of any two cylindrical cavities 11 are parallel to each other. By designing multiple cylindrical cavities 11 within the heating furnace body 1, one heating furnace body 1 can heat multiple cylindrical cavities 11, which helps to save resources. Since the internal arrangement structure when multiple cylindrical cavities 11 are designed is similar to that when a single cylindrical cavity 11 is designed, no corresponding drawings are provided. In practical applications, the number of cylindrical cavities 11 can be configured according to actual needs, and no further specific limitations are made here.

[0065] In some specific implementations, the aforementioned heating furnace body 1 may specifically include a furnace body insulation and heating layer 10. This furnace body insulation and heating layer 10 is circumferentially arranged around the outside of one or more cylindrical cavities 11, preferably but not limited to being arranged in close contact with the outer wall of the cylindrical cavity 11. For example, it can also be designed with a certain preset gap. The furnace body insulation and heating layer 10 is provided with a heating structure for heating the cylindrical cavity 11. The design of the furnace body insulation and heating layer 10 helps to reduce the energy loss of the heating furnace body 1, while better ensuring the heating effect on the cylindrical cavity 11.

[0066] In a further implementation plan, refer to Figure 1 , Figure 3 and Figure 4As shown, the furnace body insulation and heating layer 10 is constructed as a solid heat-conducting structure surrounding the outer wall of the cylindrical cavity 11. For example, it can be, but is not limited to, a solid heat-conducting structure arranged in close contact with the outer wall of the cylindrical cavity 11. The outer wall of this solid heat-conducting structure is preferably designed as a heat-insulating material, and the inner wall as a heat-conducting material. Specifically, the heating structure may include multiple electric heating rods 101 embedded in the heat-conducting material of the solid heat-conducting structure. The electric heating rods 101 are arranged circumferentially along each cylindrical cavity 11. Electric heating can be achieved by connecting the electric heating rods 101 to corresponding power supply equipment, and then heat is transferred to the cylindrical cavity 11 through the heat-conducting material of the solid heat-conducting structure. This structural design simplifies the arrangement of the heating structure and facilitates its implementation.

[0067] It is understood that the above-described heating structure and furnace body insulation heating layer 10 are merely preferred examples of this utility model. In actual applications, other structural forms can also be designed, for example, referring to... Figure 9 As shown, the furnace body insulation and heating layer 10 can also be constructed as a hollow heating cavity. The inner wall of the hollow heating cavity surrounds the outer wall of the cylindrical cavity 11, for example, but not limited to, it can be arranged in close contact with the outer wall of the cylindrical cavity 11. The outer wall of the hollow heating cavity is provided with a flame nozzle 5 and an exhaust port 103. The flame nozzle 5 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). The flame nozzle 5 is designed with an igniter (such as an electric igniter). 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 it with the igniter, the flame nozzle 5 can spray flames into the hollow heating cavity, thereby heating the inner wall of the hollow heating cavity. The heat is transferred to the outer wall of the cylindrical cavity 11 through the inner wall of the hollow heating cavity, thereby heating the cylindrical cavity 11. The number of flame nozzles 5 is preferably designed to be multiple, and they are evenly arranged on the outer wall of the hollow heating cavity.

[0068] Among them, reference Figure 10 As shown, the specific structure of the flame nozzle 5 may include a flame outlet 50, a gas inlet 51, an air inlet 52, a mixing chamber 53, a follow-up nozzle 54, an ignition electrode 55, and a flame detection electrode 56. Gas flows in through the gas inlet 51, and air flows in through the air inlet 52. The gas and air mix in the mixing chamber 53 to form a combustible mixed gas 57, which is then ignited by the ignition electrode 55. At the same time, the flame detection electrode 56 detects whether the mixed gas 57 has been ignited, and the follow-up nozzle 54 ensures continuous combustion and spraying of the flame.

[0069] In a further implementation plan, refer to Figure 9As shown, in order to make the outer wall of the cylindrical cavity 11 heat 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 fitted onto the outer wall of the cylindrical cavity 11. On the one hand, this ensures the uniformity of the 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, which would affect the service life of the cylindrical cavity 11.

[0070] It should be noted that the exhaust port 103 can be specifically located at at least one end of the hollow heating cavity, which makes the arrangement of the exhaust port 103 more convenient. Preferably, this utility model designs it on the upper side of the hollow heating cavity.

[0071] Reference Figure 1 , Figure 3 , Figure 4 and Figure 8 As shown, the heating furnace body 1 and the cylindrical cavity 11 can be detachably connected. The heating furnace body 1 has an inner cavity 100. By opening the furnace top cover 102, the inner cylindrical cavity 11 can be taken out so that it can be directly disassembled and replaced if problems occur in the future. The furnace shell of the heating furnace body 1 can be opened, and the cylindrical cavity 11 and its internal structure can be taken out and replaced with a new spare cylindrical cavity 11, which helps to increase the company's production capacity.

[0072] It should be noted that a support structure is generally provided on the outer side of the heating furnace body 1. This support structure is mainly used for installing and fixing the heating furnace body 1. Specifically, the support structure may include a tail support 41 for the tail end of the heating furnace body 1 and a head support 42 for the head end of the heating furnace body 1.

[0073] It should also be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0074] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" are not specifically singular and may include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.

[0075] In the description of the embodiments of this application, unless otherwise stated, " / " means "or", for example, A / B can mean A or B; "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more.

[0076] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0077] This document uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the core ideas of this utility model. Although this application has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of this 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. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A high-temperature chlorination purification device for quartz sand, characterized in that, include: The heating furnace body (1) has at least one cylindrical cavity (11) inside. The axis of the cylindrical cavity (11) is arranged perpendicular to the horizontal plane. A feeding port (111) is provided on the upper end of the cylindrical cavity (11), and a discharge port (112) is provided on the lower end of the cylindrical cavity (11). An air inlet (113) and an air outlet (114) are also provided on both ends of the cylindrical cavity (11). Multiple inclined plates (3) are disposed inside the cylindrical cavity (11) and are arranged sequentially along the axial direction of the cylindrical cavity (11); Wherein, any two adjacent inclined plates (3) are inclined in opposite directions, and a hollow notch (30) is formed between the lower edge of the upper inclined plate (3) and the inner wall of the cylindrical cavity (11) of any two adjacent inclined plates (3), so that the quartz sand on the upper inclined plate (3) can slide through the hollow notch (30) to the inclined plate (3) below it, until it falls into the discharge port (112).

2. The high-temperature chlorination purification device for quartz sand as described in claim 1, characterized in that, The inclined plate (3) is constructed as a perforated plate, and the holes of any two adjacent inclined plates (3) are staggered.

3. The high-temperature chlorination purification device for quartz sand as described in claim 1, characterized in that, The angle between the inclined plate (3) and the cross section of the cylindrical cavity (11) ranges from 25° to 75°.

4. The high-temperature chlorination purification device for quartz sand as described in claim 1, characterized in that, The inclined plate (3) is also provided with material passage and ventilation holes.

5. The high-temperature chlorination purification device for quartz sand as described in claim 1, characterized in that, It also includes at least one fixed support (2) disposed in the cylindrical cavity (11), the fixed support (2) being parallel or coincident with the axis of the cylindrical cavity (11), and each of the inclined plates (3) being fixed on each of the fixed support (2).

6. The high-temperature chlorination purification apparatus for quartz sand as described in claim 5, characterized in that, A material drop gap (31) is formed on the inclined plate (3) at the connection position between it and the fixed support column (2), and the material drop gap (31) is located on the material receiving side of the fixed support column (2); And / or, a reinforcing bracket (32) is provided on the bottom surface of the inclined plate (3) at the connection position between it and the fixed support column (2), and the reinforcing bracket (32) is located on the material dropping side of the fixed support column (2).

7. The high-temperature chlorination purification apparatus for quartz sand as described in claim 1, characterized in that, The air outlet (114) is located on the upper end of the cylindrical cavity (11), and the air inlet (113) is located on the lower end of the cylindrical cavity (11).

8. The high-temperature chlorination purification apparatus for quartz sand as described in claim 1, characterized in that, The wall of the cylindrical cavity (11) is made of quartz.

9. The high-temperature chlorination purification apparatus for quartz sand as described in claim 1, characterized in that, There are multiple cylindrical cavities (11), each of which is provided with an inclined plate (3), and the axes of any two cylindrical cavities (11) are parallel to each other.

10. The high-temperature chlorination purification apparatus for quartz sand as described in claim 1, characterized in that, The heating furnace body (1) includes a furnace body insulation and heating layer (10), which is circumferentially arranged around the outside of each of the cylindrical cavities (11), and a heating structure for heating the cylindrical cavity (11) is provided inside the furnace body insulation and heating layer (10).

11. The high-temperature chlorination purification apparatus for quartz sand as described in claim 10, characterized in that, The furnace body insulation and heating layer (10) is constructed as a solid heat-conducting structure surrounding the outer wall of the cylindrical cavity (11). 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 circumferentially along each of the cylindrical cavities (11).

12. The high-temperature chlorination purification apparatus for quartz sand as described in claim 10, characterized in that, The furnace body insulation heating layer (10) is constructed as a hollow heating cavity. The inner wall of the hollow heating cavity surrounds the outer wall of the cylindrical cavity (11). The outer wall of the hollow heating cavity is provided with a flame nozzle (5) and an exhaust port (103).

13. The high-temperature chlorination purification apparatus for quartz sand as described in claim 12, characterized in that, The inner wall of the hollow heating cavity is constructed as a quartz tube sleeve (104). And / or, the exhaust port (103) is located at at least one end of the hollow heating cavity.

14. The high-temperature chlorination purification apparatus for quartz sand as described in any one of claims 1-13, characterized in that, It also includes a feeding mechanism for supplying quartz sand to the feeding port (111), the feeding port (111) being provided with a vibrator for adjusting the feeding speed; And / or, it also includes a feeding and cooling mechanism, wherein the discharge port (112) is connected to the feeding funnel of the feeding and cooling mechanism; And / or, the heating furnace body (1) and the cylindrical cavity (11) are configured to be detachably connected; And / or, the outer side of the heating furnace body (1) is provided with a support structure, the support structure including a tail support (41) provided with the tail of the heating furnace body (1) and a head support (42) provided with the head of the heating furnace body (1).

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