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 flat sieve plates, at least one cylindrical cavity is arranged in the heating furnace body, the axis of the cylindrical cavity is perpendicular to the horizontal plane, a feeding port is arranged on the upper end side of the cylindrical cavity, a discharging port is arranged on the lower end side of the cylindrical cavity, and the flat sieve plates are arranged on the feeding port and the discharging port respectively. An air inlet and an air outlet are respectively formed in two end sides of the cylindrical cavity; the plurality of flat sieve plates are sequentially arranged at intervals in the axis direction of the cylindrical cavity; the mesh sieve hole structures of any two adjacent layers of flat sieve plates are arranged in a staggered manner, and quartz sand falling into the cylindrical cavity from the charging hole can sequentially pass through the mesh sieve hole structures of all the flat sieve plates to fall into the discharging hole, so that continuous operation of high-temperature chlorination purification of the quartz sand is realized, and the purification working efficiency is greatly improved; in addition, the mesh sieve hole structures of any two adjacent layers of flat sieve plates are arranged in a staggered manner, so that the flowing time of quartz sand can be prolonged, and the purification effect can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to quartz sand high temperature purification technical field more specifically, relate to a kind of quartz sand high temperature chlorination purification device. BACKGROUND

[0002] High-purity quartz sand is a high-purity non-metallic mineral raw material produced by a series of physical and chemical purification techniques from natural quartz minerals. 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 glass with only silicon dioxide as a component. This glass has high hardness and a series of excellent physical and chemical properties such as high temperature resistance, low expansion coefficient, thermal shock resistance, corrosion resistance, good insulation, and high light transmission. Therefore, quartz glass is widely used in high-end electric light sources, large-scale and very large-scale integrated circuits, solar cells, optical fibers, lasers, aerospace, military, and other industries.

[0003] The raw ore of high-purity quartz sand is natural quartz ore. In addition to quartz, it usually contains various impurity minerals such as mica, feldspar, and iron-titanium oxides. Quartz itself often contains certain metal or non-metal element impurities due to crystal structure defects or micro-cracks, as well as fluid impurities. Most impurities can be removed through flotation, magnetic separation, gravity separation, acid leaching, calcination, and other means, but it is difficult to meet the higher requirements of high-purity quartz sand for certain elements.

[0004] The existing quartz sand purification mainly uses a quartz sand high-temperature chlorination purification device, but most current quartz sand high-temperature chlorination purification devices cannot have a large sand flow layer thickness, which causes the quartz particles to not uniformly contact with the reaction gas, resulting in low purification efficiency and poor purification effect of the quartz sand.

[0005] In summary, how to solve the problem of low purification efficiency and poor purification effect of the quartz sand high-temperature chlorination purification device has become a technical problem that needs to be solved by technicians in this field. UTILITY MODEL CONTENTS

[0006] Therefore, the utility model provides a quartz sand high-temperature chlorination purification device to solve the problem of low purification efficiency and poor purification effect of the quartz sand high-temperature chlorination purification device.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

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

[0009] A heating furnace body, at least one cylindrical cavity is arranged in the furnace body, the axis of the cylindrical cavity is arranged vertically to the horizontal plane, a feeding port is arranged at the upper end side of the cylindrical cavity, a discharging port is arranged at the lower end side of the cylindrical cavity, and an air inlet and an air outlet are respectively arranged at the two end sides of the cylindrical cavity;

[0010] A plurality of flat sieve plates are arranged in sequence and at intervals along the axial direction of the cylindrical cavity, the outer edge of the flat sieve plate is arranged on the inner cavity wall of the cylindrical cavity, and the flat sieve plate is arranged vertically to the axis of the cylindrical cavity;

[0011] The flat sieve plate is provided with a mesh hole structure, the mesh hole structures of any two adjacent flat sieve plates are arranged in a staggered manner, and the quartz sand falling into the cylindrical cavity from the feeding port can pass through the mesh hole structures of each flat sieve plate in sequence and fall to the discharging port.

[0012] Optionally, the hole body of the mesh hole structure of the flat sieve plate is configured as a funnel-shaped hole body that is tapered from top to bottom.

[0013] Optionally, the funnel-shaped hole body is configured as a four-pyramid hole body.

[0014] Optionally, the funnel-shaped hole body includes an upper hole opening and a lower hole opening, the upper hole opening is configured as a square opening, and adjacent two square openings have a common side opposite to the lower hole opening of the funnel-shaped hole body of the flat sieve plate on the upper layer to form a shunt structure.

[0015] Optionally, at least one fixed support is arranged in the cylindrical cavity, the fixed support is parallel to or coincides with the axis of the cylindrical cavity, and each flat sieve plate is fixed on each fixed support.

[0016] Optionally, a smooth transition arc-shaped connection slope is formed at the position where the fixed support connects with the top surface of the flat sieve plate.

[0017] Optionally, a distributor is further arranged above the first layer of flat sieve plates in the cylindrical cavity, the inlet end of the distributor is communicated with the feeding port, and the discharging end of the distributor is used to uniformly deliver materials to the flat sieve plate below.

[0018] Optionally, the discharging end of the distributor is configured as a plurality of circumferentially uniformly distributed discharging holes.

[0019] Optionally, the air outlet is arranged at the upper end side of the cylindrical cavity, and the air inlet is arranged at the lower end side of the cylindrical cavity.

[0020] Optionally, the cavity wall of the cylindrical cavity is a tube wall made of quartz material.

[0021] Optionally, the number of the cylindrical cavities is multiple, each of the cylindrical cavities is provided with the flat sieve plate, and the shaft centers of any two of the cylindrical cavities are parallel to each other.

[0022] Optionally, the heating furnace body comprises a furnace body heat preservation heating layer, the furnace body heat preservation heating layer is circumferentially arranged outside each of the cylindrical cavities, and the furnace body heat preservation heating layer is provided with a heating structure for heating the cylindrical cavities.

[0023] Optionally, the furnace body heat preservation heating layer is configured as a solid heat conduction structure surrounding the outer wall of the cylindrical cavity, and the heating structure comprises a plurality of electric heating rods embedded in the solid heat conduction structure, and the electric heating rods are arranged along the circumference of each of the cylindrical cavities.

[0024] Optionally, the furnace body heat preservation heating layer is configured as a hollow heating cavity, the inner cavity wall of the hollow heating cavity surrounds 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.

[0025] Optionally, the inner cavity wall of the hollow heating cavity is configured as a quartz tube sleeve.

[0026] And / or, the exhaust port is arranged at least one of the two ends of the hollow heating cavity.

[0027] Optionally, it further comprises a feeding mechanism for supplying quartz sand to the feeding port, and the feeding port is provided with a vibrator for adjusting the feeding speed.

[0028] And / or, it further comprises a discharging cooling mechanism, and the discharging port is connected with the feeding funnel of the discharging cooling mechanism.

[0029] And / or, the heating furnace body and the cylindrical cavity are configured to be detachably connected.

[0030] And / or, the outer side of the heating furnace body is provided with a support structure, and the support structure comprises a tail support provided with the tail of the heating furnace body and a head support provided with the head of the heating furnace body.

[0031] Compared with the background art, the quartz sand high-temperature chlorination purification device includes a heating furnace body and multiple flat sieve plates, wherein at least one cylindrical cavity is arranged in the heating furnace body, the axis of the cylindrical cavity is vertically arranged with the horizontal plane, a feeding port is arranged at the upper end side of the cylindrical cavity, a discharging port is arranged at the lower end side of the cylindrical cavity, and an air inlet and an air outlet are further arranged at the two end sides of the cylindrical cavity; the multiple flat sieve plates are sequentially and spacedly arranged along the axis direction of the cylindrical cavity, the outer edge of the flat sieve plate is arranged on the inner cavity wall of the cylindrical cavity, and the flat sieve plate is vertically arranged with the axis of the cylindrical cavity; and the flat sieve plate is provided with a mesh hole structure, the mesh hole structures of any two adjacent flat sieve plates are arranged in a staggered manner, and the quartz sand falling into the cylindrical cavity from the feeding port can sequentially fall through the mesh hole structures of the flat sieve plates and fall to the discharging port. In the actual application process of the quartz sand high-temperature chlorination purification device, the heating function of the heating furnace body is started, the air inlet and the air outlet are connected to circulate and introduce fresh gas required for chlorination purification into the cylindrical cavity, and the quartz sand to be purified is added from the feeding port. The quartz sand will sequentially pass through the mesh hole structures of the flat sieve plates and fall to the discharging port. The quartz sand will contact the circulating introduced gas during the falling process. Under the action of the high temperature of the heating furnace body, the quartz sand can realize high-temperature chlorination purification. By continuously adding the quartz sand material at the feeding port and continuously discharging the purified quartz sand at the discharging port, the continuous operation of the quartz sand high-temperature chlorination purification can be realized, and the purification efficiency is greatly improved. In addition, during the high-temperature chlorination purification process, since the mesh hole structures of any two adjacent flat sieve plates are arranged in a staggered manner, the flow time of the quartz sand is increased, that is, the contact area of the quartz sand and the reaction gas is increased, which helps to improve the purification effect. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0033] Figure 1 The longitudinal section structure schematic diagram of the first quartz sand high-temperature chlorination purification device provided by the embodiments of the present application is shown in the figure.

[0034] Figure 2 The longitudinal section structure schematic diagram of the second quartz sand high-temperature chlorination purification device provided by the embodiments of the present application is shown in the figure.

[0035] Figure 3 The mesh hole structure schematic diagram of one of the two adjacent flat sieve plates provided by the embodiments of the present application is shown in the figure.

[0036] Figure 4 The schematic view of the screen mesh structure of another one of the two adjacent flat sieve plates is shown in the figure;

[0037] Figure 5 The local top view structure schematic view of the screen mesh structure of the flat sieve plate is shown in the figure;

[0038] Figure 6 The local longitudinal section structure schematic view of the funnel-shaped hole body is shown in the figure;

[0039] Figure 7 The falling direction schematic view of the quartz sand layer by layer through the screen mesh structure of the flat sieve plate is shown in the figure;

[0040] Figure 8 The structure schematic view of the circular arc-shaped connecting slope surface provided between the fixed pillar and the top surface of the flat sieve plate is shown in the figure;

[0041] Figure 9 The longitudinal section structure schematic view of the quartz sand high-temperature chlorination purification device when the furnace body heat preservation heating layer is constructed into a hollow heating cavity is shown in the figure;

[0042] Figure 10 The section structure schematic view of the flame injection nozzle is shown in the figure.

[0043] Among them, Figures 1-10 The middle:

[0044] The heating furnace body 1, the furnace body heat preservation heating layer 10, the electric heating rod 101, the distributor 102, the exhaust port 103, the quartz tube sleeve 104, the cylindrical cavity 11, the feeding port 111, the discharging port 112, the air inlet 113, the air outlet 114;

[0045] The fixed pillar 2;

[0046] The flat sieve plate 3, the screen mesh structure 30, the funnel-shaped hole body 31, the common edge 32, the circular arc-shaped connecting slope surface 33;

[0047] The tail support 41, the head support 42;

[0048] The flame injection nozzle 5, the flame outlet 50, the fuel gas inlet 51, the air inlet 52, the mixed gas cavity 53, the afterburning nozzle 54, the ignition electrode 55, the flame detection electrode 56, the mixed fuel gas 57. DETAILED DESCRIPTION

[0049] The core of the utility model lies in providing 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.

[0050] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0051] With reference to Figures 1-10 The utility model provides a quartz sand high temperature chlorination purification device, including heating furnace body 1 and a plurality of flat sieve plate 3, wherein heating furnace body 1 is provided with at least one cylindrical cavity 11, the axis of cylindrical cavity 11 is vertically arranged with horizontal plane, this vertical arrangement specifically can be absolute vertical, also can be approximate vertical (also namely satisfy the vertical in the error range of processing allowable), such as can be 90 ° + 10 °, the upper end side of cylindrical cavity 11 is provided with charging port 111, the lower end side of cylindrical cavity 11 is provided with discharge port 112, and the both ends of cylindrical cavity 11 are provided with air inlet 113 and air outlet 114 respectively, a plurality of flat sieve plate 3 are sequentially spaced along the axis direction of cylindrical cavity 11, and the outer edge of flat sieve plate 3 is arranged on the inner cavity wall of cylindrical cavity 11, and flat sieve plate 3 is vertically arranged with the axis of cylindrical cavity 11, and the mesh sieve hole structure 30 is arranged on flat sieve plate 3, the mesh sieve hole structure 30 of any two adjacent flat sieve plate 3 is staggered arrangement, and the quartz sand falling into cylindrical cavity 11 from charging port 111 can sequentially pass through the mesh sieve hole structure 30 of each flat sieve plate and fall to discharge port 112.

[0052] The quartz sand high temperature chlorination purification device, in the actual application process, the heating function of heating furnace body 1 is started, the air inlet 113 and the air outlet 114 are connected to circulate fresh chlorination purification gas (the gas specifically can be chlorine or chlorine gas compound reaction gas) into the cylindrical cavity 11, and the quartz sand to be purified is added from the charging port 111, the quartz sand will sequentially pass through the mesh sieve hole structure 30 of each flat sieve plate 3 and fall to the discharge port 112, the quartz sand will contact the circulating chlorination purification gas during the falling process, the quartz sand can realize high temperature chlorination purification under the action of the high temperature of heating furnace body 1, and by continuously adding the quartz sand material at the charging port 111, the purified quartz sand is continuously discharged from the discharge port 112, the continuous operation of the quartz sand high temperature chlorination purification can be realized, and the working efficiency of purification is greatly improved, in addition, during the high temperature chlorination purification process, since the mesh sieve hole structure 30 of any two adjacent flat sieve plate 3 is staggered arrangement, the flow time of the quartz sand can be increased, that is, the contact area of the quartz sand and the reaction gas is increased, which helps to improve the purification effect.

[0053] It should be noted that those skilled in the art should understand that the chlorination purification gas introduced into the quartz sand high-temperature chlorination purification device is generally a high-purity gas containing chlorine, such as chlorine or hydrogen chloride, which reacts with impurities in the quartz to purify the quartz sand and does not contaminate the quartz sand.

[0054] In addition, it should be noted that the quartz sand high-temperature chlorination purification device generally further includes 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. The quartz sand is supplied to the feeding port 111 by 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 further include a discharging cooling mechanism, and the discharging port 112 is connected to the feeding funnel of the discharging cooling mechanism. In this way, the purified quartz sand can be directly cooled in the discharging cooling mechanism and transferred to the subsequent process. In addition, those skilled in the art should understand that the heating temperature of the heating furnace body 1 of the quartz sand high-temperature chlorination purification device generally satisfies the condition of being heated to above 650 degrees Celsius, for example, the heating temperature can be set to 700-1250 degrees Celsius.

[0055] In some specific embodiments, the gas outlet 114 is preferably arranged at the upper end side of the cylindrical cavity 11, and the gas inlet 113 is arranged at the lower end side of the cylindrical cavity 11. By designing in this structure, the reaction gas flows from bottom to top, so that the quartz sand can be in contact with the reaction gas as much as possible when passing through the flat sieve plate 3 layer by layer, which helps to improve the chlorination purification effect. It should be understood that the above-mentioned bottom-to-top gas flow direction is only a preferred example of the embodiments of the present application, and in actual application, other gas flow directions can also be designed, such as from the middle to both ends, or from both ends to the middle, or from top to bottom, etc. without more specific limitation.

[0056] In some specific embodiments, referring to Figure 5 and Figure 6 , the hole body of the mesh sieve hole structure 30 of the flat sieve plate 3 can be specifically designed as a funnel-shaped hole body 31 which is tapered from top to bottom. By designing the hole body of the mesh sieve hole structure 30 in the above structure, the quartz sand can pass through the mesh sieve hole structure 30 more smoothly, and the accumulation of the quartz sand is minimized.

[0057] In further embodiments, referring to Figures 5-7 , the funnel-shaped hole body 31 can be but not limited to a four-pyramid hole body. For example, it can also be designed as a six-pyramid hole body, etc. without more specific limitation.

[0058] In still further embodiments, referring toFigures 5-7 As shown, the funnel-shaped hole body 31 can specifically include an upper hole opening and a lower hole opening, the upper hole opening is designed as a square opening, two adjacent square openings have a common side 32, and the common side 32 is opposite to the lower hole opening of the funnel-shaped hole body 31 of the flat sieve plate 3 of the upper layer to form a shunt structure. By designing the above structure, on the one hand, the common side 32 can reduce the accumulation of quartz sand, and on the other hand, the shunt structure can improve the uniformity of the distribution of quartz sand, which helps to improve the purification effect. In addition, the shunt structure cooperates with the funnel-shaped hole body 31, so that the quartz sand can continuously roll along the hole wall of the funnel-shaped hole body 31 while falling, which helps to make the quartz sand fully contact with the gas, thereby helping to improve the purification effect.

[0059] In some specific embodiments, referring to Figure 8 and Figure 9 The quartz sand high-temperature chlorination purification device can further include at least one fixed support 2 arranged in the cylindrical cavity 11, the fixed support 2 is parallel to or coincides with the axis of the cylindrical cavity 11, and each flat sieve plate 3 is fixed on each fixed support 2. The fixed support 2 mainly serves to strengthen the structure of each flat sieve plate 3, and its specific diameter size and number can be selected according to actual needs, for example, it can be a rod coinciding with the axis of the cylindrical cavity 11, or it can be multiple rods parallel to the axis of the cylindrical cavity 11. In addition, the fixed support 2 can be but not limited to a quartz column, because the material of the flat sieve plate 3 is usually quartz material, by designing the fixed support 2 as a quartz column, the fixed connection between the fixed support 2 and the flat sieve plate 3 can be welded, and the flat sieve plate 3 and the inner side wall of the cylindrical cavity 11 can be welded or not welded according to actual needs and processing difficulty. By designing the fixed support 2, the fixed position of the flat sieve plate 3 is more stable and reliable.

[0060] In some specific embodiments, referring to Figure 8 As shown, the position where the fixed support 2 and the top surface of the flat sieve plate 3 meet can form a smooth transition arc-shaped connection slope surface 33. By designing the arc-shaped connection slope surface 33, the problem of quartz sand accumulation at the connection position of the two can be effectively avoided.

[0061] In some specific embodiments, referring to Figure 2As shown, the upper portion of the cylindrical cavity 11 corresponding to the first layer of flat sieve plate 3 is also provided with a distributor 102, the inlet end of the distributor 102 is communicated with the feeding port 111, and the outlet end of the distributor 102 is used to uniformly deliver the material to the flat sieve plate 3 below, wherein the outlet end can be specifically configured as a plurality of circumferentially uniformly distributed discharge holes. By designing the above-mentioned distributor 102, the distribution of quartz sand falling on the first layer of flat sieve plate 3 is more uniform, so that the distribution of quartz sand after layer-by-layer falling is more uniform, which is more helpful to improve the purification effect.

[0062] It should be noted that the cavity wall of the cylindrical cavity 11 can be a tube wall made of quartz material. By designing such a structure, the high-temperature heating requirement can be met, and the reaction with the reaction gas provided for quartz sand purification can be avoided, thereby ensuring the stability of the use of the cylindrical cavity 11. Of course, it can be understood that designing the cavity wall of the cylindrical cavity 11 to be made of quartz material is only a preferred example of the embodiments of the present application, and in actual application, it can also be designed to be made of other materials that can meet the high-temperature heating requirement and do not react with the reaction gas provided for quartz sand purification, without more specific limitation.

[0063] In addition, the cylindrical cavity 11 can be designed as a cylindrical cavity, or can be designed as a cylindrical cavity of other shapes, without more specific limitation.

[0064] In some specific embodiments, the number of cylindrical cavities 11 can be designed to be one or more, and when the number of cylindrical cavities 11 is more than one, the flat sieve plate 3 is arranged in each cylindrical cavity 11, 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. In actual application, the number of cylindrical cavities 11 can be configured according to actual needs, without more specific limitation.

[0065] In some specific embodiments, the heating furnace body 1 can specifically include a furnace body heat preservation and heating layer 10, which is circumferentially arranged on the outer side of each cylindrical cavity 11, and is preferably arranged in close contact with the outer side wall of the cylindrical cavity 11, or can be designed to have a certain preset gap. The furnace body heat preservation and heating layer 10 is provided with a heating structure for heating the cylindrical cavity 11. By designing the furnace body heat preservation and heating layer 10, the energy loss of the heating furnace body 1 can be reduced, and the heating effect of the cylindrical cavity 11 can be better guaranteed.

[0066] In further embodiments, with reference to Figure 1 and Figure 2As shown, the above-mentioned furnace body heat preservation and heating layer 10 is constructed as a solid heat-conducting structure arranged around 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 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. 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.

[0067] 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, Figure 9 As shown, the furnace body thermal insulation 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 5 and an exhaust port 103 are provided on the outer cavity wall of the hollow heating cavity. The flame jet 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), and an igniter (such as an electric ignition) is designed in the flame jet nozzle 5. 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 5 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 5 is preferably designed to be multiple and evenly arranged on the outer cavity wall of the hollow heating cavity.

[0068] Among them, reference Figure 10 As shown, the specific structure of the flame jet nozzle 5 may include a fire outlet 50, a gas inlet 51, an air inlet 52, a mixed gas chamber 53, an afterburning nozzle 54, an ignition electrode 55 and a flame detection electrode 56. Among them, the gas flows in through the gas inlet 51, and the air flows in through the air inlet 52. The gas and air are mixed in the mixed gas 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 afterburning nozzle 54 ensures the continuous combustion and injection of the flame.

[0069] In a further embodiment, referring to Figure 9As shown, in order to make the outer cavity wall of the cylindrical cavity 11 more uniform, the inner cavity wall of the hollow heating cavity is preferably formed as a quartz tube wall 104, such as a quartz tube sleeve 104 sleeved on the outer cavity wall of the cylindrical cavity 11, which on the one hand ensures the uniformity of the heating of the outer cavity wall of the cylindrical cavity 11, and on the other hand avoids the local overheating of the outer cavity wall of the cylindrical cavity 11, thereby affecting the service life of the cylindrical cavity 11.

[0070] It should be noted that the exhaust port 103 can be arranged at least one of the two ends of the hollow heating cavity, which makes the arrangement of the exhaust port 103 more convenient. The utility model preferably designs the upper end side of the hollow heating cavity.

[0071] Referring to Figure 1 , Figure 2 and Figure 9 , the heating furnace body 1 and the cylindrical cavity 11 can be detachably connected, so that when the equipment has problems later, the heating furnace body 1 can be directly disassembled and replaced, the furnace shell of the heating furnace body 1 is opened, and the structure of the cylindrical cavity 11 connected to the inside is taken out, and a new standby cylindrical cavity 11 is replaced, which helps to increase the production capacity of the enterprise.

[0072] It should be noted that the outer side of the heating furnace body 1 is generally provided with a support structure, which is mainly used for installing and fixing the heating furnace body 1. The support structure can include 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.

[0073] In addition, it should be noted that each embodiment in the specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts of each embodiment can be referred to each other.

[0074] As shown in the present application and claims, unless the context clearly indicates otherwise, "one", "a", "an", and / or "the" do not refer to the singular, but can also include the plural. Generally, the terms "comprise" and "include" only indicate the inclusion of the steps and elements explicitly identified, and these steps and elements do not constitute an exclusive list, and the method or device can also include other steps or elements. The element defined by the statement "comprises one" does not exclude the presence of another identical element in the process, method, product or device comprising the element.

[0075] In the description of the embodiments of the present application, unless otherwise specified, " / " represents the meaning of or, for example, A / B can represent A or B; "and / or" herein is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent: A exists alone, A and B exist together, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0076] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0077] The principles and implementation modes of the present application are described herein by applying specific examples, and the above description of the embodiments is only for the purpose of helping to understand the core idea of the present application. Although the present application has been described with reference to the preferred embodiments, various improvements can be made to it and equivalent parts can be replaced without departing from the scope of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present 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 quartz sand high temperature chlorination purification device, characterized by, The utility model relates to a quartz sand screening device, including: A heating furnace body (1) is internally provided with at least one cylindrical cavity (11), the axis of the cylindrical cavity (11) is vertically arranged with 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 discharging port (112), and the both end sides of the cylindrical cavity (11) are further respectively provided with an air inlet (113) and an air outlet (114); A plurality of flat sieve plates (3) are sequentially and spacedly arranged along the axial direction of the cylindrical cavity (11), the outer edge of the flat sieve plate (3) is arranged on the inner cavity wall of the cylindrical cavity (11), and the flat sieve plate (3) is vertically arranged with the axis of the cylindrical cavity (11); Wherein, the flat sieve plate (3) is provided with a mesh hole structure (30), the mesh hole structures (30) of any two adjacent layers of the flat sieve plate (3) are arranged in a staggered manner, and the quartz sand falling into the cylindrical cavity (11) from the feeding port (111) can sequentially pass through the mesh hole structures (30) of each flat sieve plate and fall to the discharging port (112).

2. The quartz sand high temperature chlorination purification apparatus as claimed in claim 1, wherein The hole body of the mesh hole structure (30) of the flat sieve plate (3) is constructed as a funnel-shaped hole body (31) that is tapered from top to bottom.

3. The quartz sand high temperature chlorination purification apparatus according to claim 2, wherein The funnel-shaped hole body (31) is constructed as a four-pyramid hole body.

4. The quartz sand high temperature chlorination purification apparatus according to claim 3, wherein The funnel-shaped hole body (31) includes an upper hole opening and a lower hole opening, the upper hole opening is constructed as a square opening, and adjacent two square openings have a common side (32) opposite to the lower hole opening of the funnel-shaped hole body (31) of the flat sieve plate (3) on the upper layer to form a shunt structure.

5. The quartz sand high temperature chlorination purification apparatus as claimed in claim 1, wherein Further comprising at least one fixed support (2) arranged in the cylindrical cavity (11), the fixed support (2) is parallel or coincides with the axis of the cylindrical cavity (11), and each flat sieve plate (3) is fixed on each fixed support (2).

6. The quartz sand high temperature chlorination purification apparatus according to claim 5, wherein The position where the fixed support (2) and the top surface of the flat sieve plate (3) are connected is formed with a smooth transition arc-shaped connection slope surface (33).

7. The quartz sand high temperature chlorination purification apparatus as claimed in claim 1, wherein A distributor (102) is further arranged above the first layer of flat sieve plates (3) in the cylindrical cavity (11), the inlet end of the distributor (102) is communicated with the feeding port (111), and the discharging end of the distributor (102) is used for uniformly conveying materials to the flat sieve plate (3) below.

8. The quartz sand high temperature chlorination purification apparatus according to claim 7, wherein The discharging end of the distributor (102) is constructed as a plurality of circumferentially uniformly distributed discharging holes.

9. The quartz sand high temperature chlorination purification apparatus as claimed in claim 1, wherein The air outlet (114) is arranged on the upper end side of the cylindrical cavity (11), and the air inlet (113) is arranged on the lower end side of the cylindrical cavity (11).

10. The quartz sand high temperature chlorination purification apparatus as claimed in claim 1, wherein The cavity wall of the cylindrical cavity (11) is a tube wall made of quartz material.

11. The quartz sand high temperature chlorination purification apparatus as claimed in claim 1, wherein The number of the cylindrical cavities (11) is multiple, each cylindrical cavity (11) is provided with the flat sieve plate (3), and the axes of any two cylindrical cavities (11) are parallel to each other.

12. The quartz sand high temperature chlorination purification apparatus as claimed in claim 1, wherein The heating furnace body (1) comprises a furnace body heat preservation heating layer (10) which is circumferentially arranged outside each of the cylindrical cavities (11), and a heating structure is arranged in the furnace body heat preservation heating layer (10) for heating the cylindrical cavities (11).

13. The quartz sand high temperature chlorination purification apparatus as claimed in claim 12, wherein The furnace body heat preservation heating layer (10) is configured as a solid heat conduction structure which surrounds the outer wall of the cylindrical cavity (11), and the heating structure comprises a plurality of electric heating rods (101) embedded in the solid heat conduction structure, and the electric heating rods (101) are arranged along the circumference of each of the cylindrical cavities (11).

14. The quartz sand high temperature chlorination purification apparatus as claimed in claim 12, wherein The furnace body heat preservation heating layer (10) is configured as a hollow heating cavity, the inner cavity wall of the hollow heating cavity surrounds the outer cavity wall of the cylindrical cavity (11), and the outer cavity wall of the hollow heating cavity is provided with a flame jet nozzle (5) and an exhaust port (103).

15. The quartz sand high temperature chlorination purification apparatus as claimed in claim 14, wherein The inner cavity wall of the hollow heating cavity is configured as a quartz tube sleeve (104). And / or, the exhaust port (103) is arranged at least one of the two ends of the hollow heating cavity.

16. The quartz sand high temperature chlorination purification apparatus according to any one of claims 1 to 15, wherein Further comprising 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; And / or, further comprising a discharging cooling mechanism, and the discharging port (112) is connected with the feeding hopper of the discharging 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, and the support structure comprises 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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