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 sand separator, 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, the lower end side of the cylindrical cavity is provided with a discharge port, and the two end sides of the cylindrical cavity are respectively provided with an air inlet and an air outlet; the sand separator is arranged in the cylindrical cavity and comprises a main body supporting column which is coaxial with the cylindrical cavity and a plurality of sand separating bodies which are arranged at intervals layer by layer in the axis direction of the main body supporting column; the sand separating bodies comprise sand separating columns which are arranged in the circumferential direction of the main body supporting column in a radiation mode at equal interval angles, and the sand separating columns of any two adjacent layers of sand separating bodies are arranged in a staggered mode so that quartz sand falling into the cylindrical cavity from the feeding opening can sequentially pass through the intervals of the sand separating columns on the sand separating bodies and fall to the discharging opening. The contact area of the quartz sand and the reaction gas is increased, and the purification effect is favorably 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 for certain elements required for 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 fully contact and react with the gas, 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] The sand separator is disposed in the cylindrical cavity and includes a main support column arranged coaxially with the cylindrical cavity and a plurality of sand separators arranged at intervals along the axial direction of the main support column.

[0011] The sand-distributing body includes sand-distributing columns arranged radially at equal intervals in the circumferential direction of the main support column. The radial ends of the sand-distributing columns are connected to or have a clearance fit with the inner wall of the cylindrical cavity. The sand-distributing columns of any two adjacent layers of the sand-distributing body are staggered so that the quartz sand falling into the cylindrical cavity from the feed port can pass through the intervals of the sand-distributing columns on each sand-distributing body in sequence and fall to the discharge port.

[0012] Optionally, the sand-dividing body further includes a fixing sleeve fitted onto the main support column, and the sand-dividing column is disposed on the fixing sleeve.

[0013] Optionally, the fixing sleeve and the sand-dividing column are either an integral structure or a separate fixing connection structure.

[0014] Optionally, both the sand separator and the main support column are made of quartz and are fixedly connected by welding.

[0015] Optionally, the top surface of the sand-dividing body and the main support column are connected by a smoothly transitioning arc-shaped connecting slope.

[0016] Optionally, a distributor is also provided above the first layer of sand-dividing body in the cylindrical cavity. The inlet end of the distributor is connected to the feeding port, and the outlet end of the distributor is used to uniformly convey materials to the sand-dividing body below it.

[0017] Optionally, the discharge end of the distributor is configured with a plurality of circumferentially evenly distributed discharge holes.

[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 equipped with a sand separator, 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 wall;

[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 technology description, the aforementioned high-temperature chlorination purification device for quartz sand includes a heating furnace and a sand separator. The heating furnace 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. The sand separator is located within the cylindrical cavity and includes a main support column coaxially arranged with the cylindrical cavity and multiple sand separators spaced at intervals along the axis of the main support column. Each sand separator includes sand separator columns arranged radially at equal intervals along the circumferential direction of the main support column. The distal ends of the sand separator columns are connected to or have a clearance fit with the inner wall of the cylindrical cavity. The sand separator columns of any two adjacent layers of sand separators are staggered, allowing the quartz sand falling into the cylindrical cavity from the feed port to pass sequentially through the intervals between the sand separator columns on each sand separator and fall to the discharge port. In practical application, this high-temperature chlorination purification device for quartz sand involves activating the heating function of the furnace body, connecting the inlet and outlet to circulate fresh gas required for chlorination purification into the cylindrical cavity, and adding the quartz sand to be purified through the feed port. The quartz sand sequentially passes through the intervals of the sand-distributing columns on each sand-distributing body and falls to the outlet. During its descent, the quartz sand comes into contact with the circulating chlorination purification gas. Under the high temperature of the furnace body, the quartz sand achieves high-temperature chlorination purification. By continuously adding quartz sand through the feed port and continuously discharging purified quartz sand through the outlet, continuous high-temperature chlorination purification of quartz sand can be achieved. This process significantly improves the efficiency of purification. Furthermore, during the high-temperature chlorination purification process, as the quartz sand passes through each sand-distributing body, the sand-distributing columns of any two adjacent layers are staggered. The quartz sand, after falling onto the columns of the upper layer, is dispersed and falls through the gaps between adjacent columns to the columns of the next layer, continuing to be dispersed. This method of passing through each layer of sand-distributing bodies more effectively increases the contact between the quartz sand and the circulating chlorination purification gas, increasing the residence time of the quartz sand and thus increasing the contact area between the quartz sand and the reaction gas, thereby improving 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 1 A longitudinal section diagram of the first type of high-temperature chlorination purification device for quartz sand provided in this embodiment of the utility model;

[0033] Figure 2 A longitudinal section diagram of the second type of high-temperature chlorination purification device for quartz sand provided in this embodiment of the utility model;

[0034] Figure 3 This is a schematic diagram of the structure of the sand separator provided in an embodiment of the present utility model;

[0035] Figure 4 This is a schematic diagram of the structure of the sand-separating body provided in an embodiment of the present invention;

[0036] Figure 5 A comparative structural diagram of two adjacent sand-separating layers provided in an embodiment of this utility model;

[0037] Figure 6 A structural schematic diagram showing the connection position between the top surface of the sand-dividing body and the main support column in an embodiment of this utility model;

[0038] Figure 7 A schematic diagram showing the separation of the heating furnace body and the cylindrical cavity provided in this embodiment of the utility model;

[0039] Figure 8 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 according to an embodiment of this utility model (the structure of the sand separator is omitted in the figure).

[0040] Figure 9 This is a cross-sectional view of the flame nozzle provided in an embodiment of the present invention.

[0041] in, Figures 1-9 middle:

[0042] 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 wall 104, cylindrical cavity 11, feeding port 111, discharging port 112, air inlet 113, air outlet 114;

[0043] Distributor 2;

[0044] Sand separator 3, main support column 31, sand separator body 32, fixing sleeve 320, sand separator column 321, arc-shaped connecting slope 33;

[0045] Tail support 41, head support 42;

[0046] 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

[0047] 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.

[0048] 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.

[0049] Reference Figures 1-9 This utility model provides a high-temperature chlorination purification device for quartz sand, including a heating furnace body 1 and a sand separator 3. The heating furnace body 1 contains at least one cylindrical cavity 11, the axis of which is arranged perpendicularly 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. An air inlet 113 and an air outlet 114 are also provided at both ends of the cylindrical cavity 11, respectively. The sand separator 3 is disposed within the cylindrical cavity 11 and includes a main support coaxially arranged with the cylindrical cavity 11. The main support column 31 and multiple sand-distributing bodies 32 are arranged layer by layer along the axial direction of the main support column 31. Specifically, the main support column 31 can be fixed on the cavity wall of the cylindrical cavity 11. The sand-distributing bodies 32 include sand-distributing columns 321 arranged radially at equal intervals in the circumferential direction of the main support column 31. The radial ends of the sand-distributing columns 321 are connected or gap-fitted with the inner cavity wall of the cylindrical cavity 11. The sand-distributing columns 321 of any two adjacent layers of sand-distributing bodies 32 are staggered. The arrangement of the sand-distributing columns 321 on the main support column 31 is similar to the structure of a "wooden dummy", so that the quartz sand falling into the cylindrical cavity 11 from the feed port 111 can pass through the intervals of the sand-distributing columns 321 on each sand-distributing body 32 and fall to the discharge port 112.

[0050] 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 sequentially passes through the intervals of the sand-distributing columns 321 on each sand-distributing body 32 and falls to the outlet 112. During its descent, the quartz sand comes into contact with the circulating chlorination purification gas. Under the high temperature of the furnace body 1, the quartz sand can achieve high-temperature chlorination purification. Furthermore, by continuously adding quartz sand material through the feed inlet 111 and continuously discharging purified quartz sand through the outlet 112, continuous high-temperature chlorination purification of quartz sand can be achieved. This continuous operation greatly improves the efficiency of purification. Furthermore, during the high-temperature chlorination purification process, as the quartz sand passes through each layer of sand distribution bodies 32, the sand distribution columns 321 of any two adjacent layers are staggered. The quartz sand falling onto the sand distribution columns 321 of the upper layer is dispersed and falls through the gap between adjacent sand distribution columns 321 in that layer to the sand distribution columns 321 of the next layer, continuing to be dispersed and falling. This method of passing through each layer of sand distribution bodies 32 more effectively increases the contact between the quartz sand and the circulating chlorination purification gas, increasing the residence time of the quartz sand, which in turn increases the contact area between the quartz sand and the reaction gas, thus helping to improve the purification effect.

[0051] 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.

[0052] 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℃.

[0053] In some specific embodiments, 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 sand separator 32 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.

[0054] In some specific implementation plans, refer to Figure 4 Combination Figure 3 The aforementioned sand-distributing body 32 may also include a fixing sleeve 320 fitted onto the main support column 31, with the sand-distributing column 321 mounted on the fixing sleeve 320. This structural design allows for the prefabrication of each layer of sand-distributing body 32 before installation onto the main support column 31, making manufacturing more convenient. Specifically, the fixing sleeve 320 and the sand-distributing column 321 can be designed as an integral structure or as a separate fixed connection structure. For example, both the fixing sleeve 320 and the sand-distributing column 321 could be made of quartz and fixedly connected by welding. Alternatively, the sand-distributing body 32 could also be without the fixing sleeve 320, with the sand-distributing column 321 directly fixed to the main support column 31.

[0055] It is worth mentioning that the aforementioned sand-dividing column 321 and main support column 31 can be designed as quartz tubes or quartz rods, or other high-temperature resistant materials, without further specific limitations.

[0056] In some specific implementations, both the sand-distributing body 32 and the main support column 31 can be made of quartz. They can be fixedly connected by welding. For example, the sand-distributing column 321 of the sand-distributing body 32 can be directly welded to the main support column 31; alternatively, the sand-distributing column 321 of the sand-distributing body 32 can be first welded to the fixing sleeve 320, and then the fixing sleeve 320 can be welded to the main support column 31; or the sand-distributing column 321 and the fixing sleeve 320 can be integrally formed, with the fixing sleeve 320 welded to the main support column 31. It is understood that the use of quartz is merely an example of the materials used for the sand-distributing body 32 and the main support column 31 in this embodiment. In actual applications, other high-temperature resistant materials that do not affect the reaction can also be selected, and no further specific limitations are made here.

[0057] In some specific implementation plans, refer to Figure 6As shown, the top surface of the sand-sand body 32 connects to the main support column 31 with a smoothly transitioning arc-shaped connecting slope 33. This arc-shaped connecting slope 33 effectively prevents the accumulation of quartz sand at the connection point. (See also...) Figure 4 As shown, in order to better avoid the problem of accumulation, the connection position between two adjacent sand-dividing columns 321 on the corresponding sand-dividing body 32 should also be a smooth transition structure.

[0058] In some other specific implementation schemes, refer to Figure 2 As shown, a distributor 2 is also provided above the first layer of sand-distributing body 32 inside the cylindrical cavity 11. The inlet end of the distributor 2 is connected to the feeding port 111, and the outlet end of the distributor 2 is used to uniformly convey materials to the sand-distributing body 32 below it. The outlet end can be specifically constructed as multiple circumferentially evenly distributed outlet holes. By designing the distributor 2, the distribution of quartz sand falling onto the first layer of sand-distributing body 32 is made more uniform, thus making the distribution of quartz sand more uniform as it falls layer by layer, which helps to improve the purification effect.

[0059] 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.

[0060] In addition, the aforementioned cylindrical cavity 11 can be designed as a cylindrical cavity or a cylindrical cavity of other shapes, without further specific limitations.

[0061] In other specific implementations, the number of the aforementioned cylindrical cavities 11 can be one or multiple. When there are multiple cylindrical cavities 11, each cylindrical cavity 11 is equipped with a sand separator 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. In practical applications, the number of cylindrical cavities 11 can be configured according to actual needs, and no further specific limitations are made here.

[0062] In some specific implementations, the aforementioned heating furnace body 1 may include a furnace body insulation and heating layer 10, which is circumferentially arranged around the outer side of each cylindrical cavity 11. Preferably, but not limited to, it is arranged to fit against 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 contains heating structures for heating the cylindrical cavities 11. The design of the furnace body insulation and heating layer 10 helps to reduce energy loss in the heating furnace body 1, while also better ensuring the heating effect on the cylindrical cavities 11.

[0063] In a further implementation plan, refer to Figure 1 and Figure 2 As 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.

[0064] 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 8 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.

[0065] Among them, reference Figure 9As 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.

[0066] In a further implementation plan, refer to Figure 8 As shown, in order to make the outer cavity wall of the cylindrical cavity 11 heat more evenly, the inner cavity wall of the upper hollow heating cavity is preferably constructed as a quartz tube wall 104, such as a quartz tube wall 104 sleeved on the outer cavity wall of the cylindrical cavity 11. On the one hand, this ensures the uniformity of the heating of the outer cavity wall of the cylindrical cavity 11, and on the other hand, it avoids local overheating of the outer cavity wall of the cylindrical cavity 11, which would affect the service life of the cylindrical cavity 11.

[0067] 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.

[0068] Reference Figure 1 , Figure 2 and Figure 7 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.

[0069] 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.

[0070] It should also 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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). The sand separator (3) is disposed in the cylindrical cavity (11) and includes a main support column (31) arranged coaxially with the cylindrical cavity (11) and a plurality of sand separators (32) arranged layer by layer along the axial direction of the main support column (31). The sand distribution body (32) includes sand distribution columns (321) arranged radially at equal intervals in the circumferential direction of the main support column (31). The radial ends of the sand distribution columns (321) are connected or gap-fitted to the inner wall of the cylindrical cavity (11). The sand distribution columns (321) of any two adjacent layers of the sand distribution body (32) are staggered so that the quartz sand falling into the cylindrical cavity (11) from the feed port (111) can pass through the intervals of the sand distribution columns (321) on each of the sand distribution bodies (32) and fall to the discharge port (112).

2. The high-temperature chlorination purification device for quartz sand as described in claim 1, characterized in that, The sand separating body (32) also includes a fixing sleeve (320) sleeved on the main support column (31), and the sand separating column (321) is disposed on the fixing sleeve (320).

3. The high-temperature chlorination purification device for quartz sand as described in claim 2, characterized in that, The fixing sleeve (320) and the sand-dividing column (321) are either an integral structure or a separate fixed connection structure.

4. The high-temperature chlorination purification device for quartz sand as described in claim 1, characterized in that, Both the sand separator (32) and the main support column (31) are made of quartz and are fixedly connected by welding.

5. The high-temperature chlorination purification device for quartz sand as described in claim 1, characterized in that, The top surface of the sand-dividing body (32) and the main support column (31) are connected by a smooth, rounded connecting slope (33).

6. The high-temperature chlorination purification apparatus for quartz sand as described in claim 1, characterized in that, Inside the cylindrical cavity (11), above the first layer of sand-dividing body (32), there is also a material distributor (2). The inlet end of the material distributor (2) is connected to the feeding port (111), and the outlet end of the material distributor (2) is used to uniformly convey materials to the sand-dividing body (32) below it.

7. The high-temperature chlorination purification apparatus for quartz sand as described in claim 6, characterized in that, The discharge end of the distributor (2) is constructed as a plurality of circumferentially evenly distributed discharge holes.

8. 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).

9. 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.

10. 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 equipped with a sand separator, and the axes of any two cylindrical cavities (11) are parallel to each other.

11. 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).

12. The high-temperature chlorination purification apparatus for quartz sand as described in claim 11, 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).

13. The high-temperature chlorination purification apparatus for quartz sand as described in claim 11, 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).

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

15. The high-temperature chlorination purification apparatus for quartz sand as described in any one of claims 1-14, 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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