Tubular reactor and high-temperature chlorination treatment device

Abstract

The utility model discloses a tubular reactor and a high-temperature chlorination treatment device.The tubular reactor comprises a rotatable first tube body, a gas supply assembly, a material supply assembly and a heating assembly, the feeding end of the first tube body is higher than the discharging end, and the first tube body is provided with at least two reaction areas; each reaction area extends from the feeding end of the first pipe body to the discharging end of the first pipe body; the gas supply assembly is configured to supply chlorinated gas to each reaction area; the feeding assembly is configured to provide quartz sand raw materials for each reaction area; the heating assembly is configured to heat all the reaction areas; when the first pipe body rotates, the quartz sand raw materials in each reaction area roll in the respective reaction area, so that the quartz sand raw materials in each reaction area are in full contact with the chlorinated gas. The tube reactor can greatly increase the use volume of the tube body and improve the purification efficiency; and moreover, the mixing uniformity of the quartz sand raw material and the chlorinated gas can be improved, and the dosage of the chlorinated gas is greatly reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of chlorination roasting equipment, and in particular relates to a tube reactor and a high-temperature chlorination treatment device. Background Art

[0002] High-quality quartz glass materials are widely used in the optical, semiconductor and microelectronics industries. The raw material for fused quartz glass is mainly quartz sand, and the purity of quartz sand directly affects the final quality of quartz glass materials.

[0003] The current mainstream purification process is to introduce chlorination gas into quartz sand to purify the purity of quartz sand. This purification process requires the cooperation of a high-temperature chlorination treatment device, which includes a rotatable tube body. During the purification process, quartz sand raw materials and chlorination gas are introduced into the tube body. In order to ensure sufficient contact between the chlorination gas and the quartz sand, the quartz sand usually only occupies a small part of the bottom wall of the tube body, and most of the space of the tube body cannot be fully utilized, resulting in low purification efficiency. Utility Model Content

[0004] The purpose of the present application is to provide a tubular reactor to solve the problem that most of the space of the tubular body of the high temperature chlorination treatment device in the prior art cannot be fully utilized and the purification efficiency is low. In addition, another purpose of the present application is to provide a high temperature chlorination treatment device including the above tubular reactor.

[0005] To achieve this goal, this application adopts the following technical solutions:

[0006] In a first aspect, the present application provides a tubular reactor, which comprises a rotatable first tubular body, a gas supply assembly, a material supply assembly and a heating assembly, wherein the first tubular body is arranged obliquely, and a material feed end of the first tubular body is higher than a material discharge end of the first tubular body, wherein:

[0007] The first tube body has at least two reaction areas, each reaction area is extended from the feed end of the first tube body to the discharge end of the first tube body; the gas supply assembly is arranged at the discharge end of the first tube body, and the gas supply assembly is configured to supply chlorination gas from the discharge end of the first tube body to each reaction area; the feed assembly is arranged at the feed end of the first tube body, and the feed assembly is configured to provide quartz sand raw material from the feed end of the first tube body to each reaction area; the heating assembly is arranged at the periphery of the first tube body, and the heating assembly is configured to heat all reaction areas;

[0008] When the first tube body rotates, each reaction area is driven to rotate synchronously, so that the quartz sand raw material in each reaction area rolls along the inner wall of each reaction area, so as to achieve full contact between the quartz sand raw material in each reaction area and the chlorination gas.

[0009] By setting at least two reaction areas in the first tube body, when purifying the quartz sand raw material, the quartz sand raw material in each reaction area can roll inside the corresponding reaction area to fully contact the chlorinated gas in the reaction area, thereby completing the purification of the quartz sand raw material. Compared with the tube body with only one reaction area in the prior art, i.e., a straight tube with a hollow interior, under the same tube diameter, the use volume of the tube body can be greatly increased, and the purification efficiency can be improved; and the uniformity of mixing the quartz sand raw material and the chlorinated gas can also be improved, which greatly reduces the amount of chlorinated gas used and reduces the production cost.

[0010] Optionally, the first tube body includes at least one baffle plate, and the at least one baffle plate is fixed in the first tube body along the length direction of the first tube body, and forms at least two independent reaction areas in the first tube body.

[0011] The reaction area in the first tube body is divided along the length direction of the first tube body by the baffle plate, so that at least two independent reaction areas are formed in the first tube body; at the same time, the baffle plate is directly fixed in the first tube body, which is convenient for directly modifying the existing tube body, and the overall structure is simple and easy to process.

[0012] Optionally, the first tube body includes a center rod and at least two baffles extending along the length direction of the first tube body, the center rod is arranged on the central axis of the first tube body and extends along the length direction of the first tube body; all the baffles are radially fixed on the center rod with the center rod as the center to divide the internal space of the first tube body into at least two independent reaction areas.

[0013] Through the cooperation of the central rod and at least two baffles, the internal space in the first tube body is divided into at least two independent reaction areas along the length direction of the first tube body. At the same time, the central rod can be used as the installation reference of each baffle to ensure the uniformity of the volume division of each reaction area.

[0014] Optionally, the first tube body includes a first connecting tube, a second connecting tube and at least two sub-tubes, the first connecting tube has a feed cavity with an upper opening, the second connecting tube has a discharge cavity with a lower opening, and the at least two sub-tubes are arranged between the first connecting tube and the second connecting tube and connect the feed cavity and the discharge cavity;

[0015] During the purification process, the first connecting tube serves as the feed end of the first tube body to receive the quartz sand raw material provided by the feed assembly and supplies it to each sub-tube; each sub-tube serves as a reaction area; the second connecting tube serves as the discharge end of the first tube body to receive and discharge the purified quartz sand in each sub-tube.

[0016] By cooperating with the first connecting tube, the second connecting tube and at least two sub-tubes, at least two reaction areas are formed on the first tube body; by splicing multiple sub-tubes to obtain a first tube body having at least two reaction areas, the processing cost of the first tube body can be reduced.

[0017] Optionally, the gas supply assembly includes a gas supply flange and an air inlet pipe; the gas supply flange includes an air inlet and an air cavity, the air cavity is connected to the air inlet pipe through the air inlet, the air cavity is connected to each reaction area, the gas supply flange is sealed and installed at the discharge end of the first tube body, and the chlorinated gas is supplied into the air cavity through the air inlet pipe and then supplied into each reaction area from the air cavity.

[0018] Through the cooperation of the gas supply flange and the gas inlet pipe, the chlorination gas is supplied from the discharge end of the first tube body to each reaction area.

[0019] Optionally, the gas supply assembly further includes air guide tubes corresponding to the reaction areas one by one, the first end of each air guide tube is connected to the air cavity, and the second end of each air guide tube extends into the corresponding reaction area.

[0020] By setting up the air guide pipe, the chlorinated gas in the air cavity is guided to the corresponding reaction area, which facilitates the chlorinated gas to quickly enter the corresponding reaction area. At the same time, the concentration of the chlorinated gas in each reaction area is kept as consistent as possible, thereby ensuring the consistency of the purification effect of the quartz sand raw material in each reaction area.

[0021] Optionally, the tube reactor also includes a rotational drive assembly, which includes a rotational drive motor, a transmission assembly, an active friction wheel and a driven friction wheel that cooperate with each other, the driven friction wheel is fixedly mounted on the first tube body, and the rotational drive motor drives the active friction wheel to rotate through the transmission assembly to drive the driven friction wheel to rotate, and then the driven friction wheel drives the first tube body to rotate.

[0022] By cooperating with the rotary drive motor, the transmission assembly, the active friction wheel and the driven friction wheel, the first tube body is driven to rotate, providing a rotary drive assembly with simple structure, low cost, high transmission efficiency and large torque.

[0023] Optionally, a plurality of discharge ports are provided at the discharge end of the first tube body along the circumference of the first tube body, and the purified quartz sand is discharged through the discharge ports.

[0024] By arranging a plurality of discharge ports in the circumferential direction of the discharge end of the first tube body, when the first tube body rotates, the purified quartz sand is discharged through the discharge port at the bottom of the discharge end, thereby achieving uniform discharge of the first tube body.

[0025] Optionally, the volume of each reaction area is the same, and the projection size of each reaction area on the cross section of the first tube body is the same.

[0026] The volume of each reaction area and the projection size of each reaction area in the cross section are set to be the same. When the feeding component feeds different reaction areas, the quartz sand raw material can be fed at the same feeding speed, which is conducive to simplifying the purification control process.

[0027] In a second aspect, the present application also proposes a high temperature chlorination treatment device, which comprises the above-mentioned tube reactor and cooler, wherein:

[0028] The cooler comprises a rotatable second tube body, the second tube body has at least two cooling areas, each cooling area is extended from the feed end of the second tube body to the discharge end of the second tube body;

[0029] The feed end of the second tube body is connected to the discharge end of the first tube body. When the second tube body rotates, it drives each cooling area to rotate synchronously, so that the purified quartz sand raw material received from the first tube body in each cooling area rolls along the inner wall of each cooling area to achieve cooling of the purified quartz sand raw material in each cooling area.

[0030] Through the cooperation of the tube reactor and the cooler, the purification and cooling of the quartz sand raw material are realized, with high purification efficiency and good purification effect; the tube reactor adopts a setting form of at least two reaction areas, which can improve the purification efficiency and purification effect, and at the same time can also reduce the amount of chlorinated gas and reduce production costs; the cooler also adopts a setting form of at least two cooling areas, so that the purified quartz sand is dispersed in different cooling areas, thereby improving the cooling effect and reducing the cooling time.

[0031] Optionally, the high-temperature chlorination treatment device further includes an auxiliary cooling component, which is disposed on the side of the second tube body and is configured to perform auxiliary cooling on the purified quartz sand in each cooling area.

[0032] By providing an auxiliary cooling component, auxiliary cooling of the cooler is achieved, the cooling time is further shortened, and the cooling effect is improved.

[0033] Optionally, the second tube body is obliquely arranged below the vertical projection of the first tube body, the feed end of the second tube body is higher than the discharge end of the second tube body, and the inclination direction of the second tube body is opposite to that of the first tube body.

[0034] By arranging the second tube body below the vertical projection of the first tube body, the lateral footprint of the equipment can be greatly reduced while cooling the purified quartz sand, and the structure is compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic cross-sectional view of a pipe body during purification treatment in a high-temperature chlorination treatment device in the prior art;

[0036] Figure 2 It is a schematic diagram of the three-dimensional structure of the high-temperature chlorination treatment device provided in an embodiment of the present application from a first perspective;

[0037] Figure 3 is a schematic diagram of the three-dimensional structure of the high-temperature chlorination treatment device provided in an embodiment of the present application from a second viewing angle;

[0038] Figure 4 It is a partial structural schematic diagram of a rotary drive assembly of a high-temperature chlorination treatment device provided in an embodiment of the present application;

[0039] Figure 5 is a schematic cross-sectional view of a first tube body provided in Example 1 of the present application;

[0040] Figure 6 is a schematic diagram of the three-dimensional structure of the first tube body provided in Example 2 of the present application;

[0041] Figure 7 is a schematic diagram of the internal structure of the first tube body provided in Example 2 of the present application;

[0042] Figure 8 is a schematic cross-sectional view of the discharge end of the first tube body provided in Example 2 of the present application;

[0043] Fig. 9 is a schematic structural diagram of the first tube body provided in Example 3 of the present application;

[0044] Fig.10 This is a schematic diagram of the connection between the sub-tube of the first tube body and the first connecting tube provided in Example 3 of the present application.

[0045] Figures 1 to 10 The following reference numerals are included:

[0046] Tube body 10, quartz sand raw material 11, chlorinated gas 12;

[0047] The first tube body 20, the feed port 200, the feed end 21 of the first tube body, the discharge end 22 of the first tube body, the reaction area 23, the baffle plate 24, the center rod 25, the baffle bar 26, the first connecting tube 27, the feed cavity 270, the second connecting tube 28, the discharge cavity 280, and the sub-tube 29;

[0048] Air supply assembly 30, air supply flange 31, air inlet 310, air cavity 311, air inlet pipe 32, air guide pipe 33, material supply assembly 40;

[0049] Heating assembly 50;

[0050] Rotation drive assembly 60, rotation drive motor 61, transmission assembly 62, active friction wheel 63, driven friction wheel 64;

[0051] A second tube body 70, a feeding end 71 of the second tube body, a discharging end 72 of the second tube body, and a rotation driving assembly 73 of the second tube body;

[0052] A first bracket 80;

[0053] The second bracket 90 . DETAILED DESCRIPTION

[0054] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0055] High-quality quartz glass materials are widely used in the optical, semiconductor and microelectronics industries. The raw material for fused quartz glass is mainly quartz sand, and the purity of quartz sand directly affects the final quality of quartz glass materials.

[0056] The current mainstream purification process is to pass chlorination gas into quartz sand to purify the purity of quartz sand. This purification process requires the use of a high-temperature chlorination treatment device. Figure 1 As shown, the existing high temperature chlorination treatment device includes a rotatable pipe body 10 ( Figure 1 The direction of the arrow in the middle is the rotation direction of the tube body 10). During the purification process, the quartz sand raw material 11 and the chlorination gas 12 are introduced into the tube body 10. In order to ensure that the chlorination gas 12 is fully in contact with the quartz sand raw material 11, the quartz sand raw material 11 usually only occupies a small part of the space on the bottom wall of the tube body 10 (usually about one-fifth of the cross-sectional area of ​​the tube body 10), which causes most of the space of the tube body 10 to be unable to be fully utilized, and the purification efficiency is low; at the same time, the remaining four-fifths of the cross-sectional area of ​​the tube body 10 need to be introduced with the chlorination gas 12, and the usage amount of the chlorination gas 12 is also large, and the purification cost is high.

[0057] Therefore, this application proposes a tube reactor, see Figure 2 , Figure 6 and Figure 7As shown, the tubular reactor proposed in the embodiment of the present application includes a rotatable first tube body 20, a gas supply assembly 30, a feed assembly 40 and a heating assembly 50, the first tube body 20 is arranged obliquely, and the feed end 21 of the first tube body is higher than the discharge end 22 of the first tube body, wherein the first tube body 20 has at least two reaction areas 23, each reaction area 23 extends from the feed end 21 of the first tube body to the discharge end 22 of the first tube body; the gas supply assembly 30 is arranged at the discharge end 22 of the first tube body, and the gas supply assembly 30 is configured to supply chlorination gas from the discharge end 22 of the first tube body to each reaction area 23, and the chlorination gas can be any one of chlorine, hydrogen chloride, chlorination, sodium chloride, potassium chloride and calcium chloride; the feed assembly 40 is arranged at the feed end 21 of the first tube body, and the feed assembly 40 is configured to provide quartz sand raw material from the feed end 21 of the first tube body to each reaction area 23; the heating assembly 50 is arranged on the periphery of the first tube body 20, and the heating assembly 50 is configured to heat all reaction areas 23. Optionally, the heating component 50 may adopt any one of resistive heating, induction heating, arc heating, infrared heating, and electron beam heating.

[0058] When the first tube body 20 rotates, it drives each reaction area 23 to rotate synchronously, so that the quartz sand raw material in each reaction area 23 rolls along the inner wall of each reaction area 23 to achieve full contact between the quartz sand raw material in each reaction area 23 and the chlorination gas.

[0059] By setting at least two reaction areas 23 in the first tube body 20, the quartz sand raw material in each reaction area 23 can roll in the corresponding reaction area 23 when purifying the quartz sand raw material, so as to fully contact the chlorination gas in each reaction area 23, and complete the purification of the quartz sand raw material. Compared with the tube body with only one reaction area in the prior art, under the same tube diameter, the use volume of the tube body can be greatly increased, and the purification efficiency can be improved; and the uniformity of mixing the quartz sand raw material and the chlorination gas can also be improved, which greatly reduces the amount of chlorination gas and reduces the production cost.

[0060] In a specific application process, the first tube body 20 may adopt different structures as required, and the following examples are given to illustrate them one by one:

[0061] Embodiment 1

[0062] See also Figure 5 As shown, as an optional embodiment of the first tube body 20, the first tube body 20 includes at least one baffle plate 24, and the at least one baffle plate 24 is fixed in the first tube body 20 along the length direction of the first tube body 20, and forms at least two independent reaction areas 23 in the first tube body 20.

[0063] Specifically, the structure of the first tube body 20 may be as follows: the first tube body 20 includes a baffle plate 24 , and the internal space of the first tube body 20 is divided into two independent reaction areas 23 extending along the length direction of the first tube body 20 by the baffle plate 24 .

[0064] Specifically, the structure of the first tube body 20 may also be: the first tube body 20 includes two baffles 24 , and the two baffles 24 are fixed in the first tube body 20 in a cross shape to form four independent reaction areas 23 in the first tube body 20 .

[0065] It should be noted that the number of baffles 24 can also be other numbers than those in the above examples. The number of baffles 24 can be reasonably selected according to the inner diameter of the first tube body and the quality of the quartz sand to be purified. In some production scenarios, one baffle 24 can effectively improve the purification efficiency; in some production scenarios, two baffles 24 can effectively improve the purification efficiency; in some other production scenarios, three baffles 24 can effectively improve the purification efficiency.

[0066] The reaction area 23 in the first tube body 20 is divided along the length direction of the first tube body by the baffle plate 24, so that at least two independent reaction areas 23 are formed in the first tube body 20. The independent reaction areas are more convenient for the purification reactions in each reaction area without mutual interference, which can improve the purification effect in each reaction area and maintain the consistency of the purification effect. At the same time, the baffle plate 24 is directly fixed in the first tube body 20, which is convenient for directly modifying the existing tube body. The overall structure is simple and easy to process.

[0067] Embodiment 2

[0068] See also Figures 6 to 8 As shown, as an optional embodiment of the first tube body 20, the first tube body 20 includes a central rod 25 and at least two baffles 26 extending along the length direction of the first tube body 20, and the central rod 25 is arranged on the central axis of the first tube body 20 and extends along the length direction of the first tube body 20; all the baffles 26 are radially fixed on the central rod 25 with the central rod 25 as the center, so as to divide the internal space of the first tube body 20 into at least two independent reaction areas 23.

[0069] Specifically, the structure of the first tube body 20 can be: the first tube body 20 includes four baffles 26, which are radially fixed on the central rod 25 with the central rod 25 as the center. The cooperation between the four baffles 26 and the central rod 25 divides the internal space of the first tube body 20 into four independent reaction areas 23.

[0070] Specifically, the structure of the first tube body 20 can be: the first tube body 20 includes two baffles 26, which are radially fixed on the center rod 25 with the center rod 25 as the center, and the angle between the two baffles 26 is 180 degrees, which evenly divides the internal space of the first tube body 20 into two independent reaction areas 23.

[0071] Specifically, the structure of the first tube body 20 can be: the first tube body 20 includes three baffles 26, which are radially fixed on the central rod 25 with the central rod 25 as the center. The three baffles 26 cooperate with the central rod 25 to divide the internal space of the first tube body 20 into three independent reaction areas 23.

[0072] It should be noted that the number of baffles 26 can also be other numbers than those in the above examples. The number of baffles 26 can be reasonably selected according to the inner diameter of the first tube body and the quality of the quartz sand to be purified. In some production scenarios, two baffles 26 can effectively improve the purification efficiency; in some production scenarios, three baffles 26 can effectively improve the purification efficiency; in some other production scenarios, four baffles 26 can effectively improve the purification efficiency.

[0073] Through the cooperation of the central rod 25 and at least two baffles 26, the internal space of the first tube body 20 is divided into at least two independent reaction areas 23 along the length direction of the first tube body 20. The independent reaction areas are more convenient for purification reactions in each reaction area, and there will be no mutual interference, which can improve the purification effect in each reaction area and maintain the consistency of the purification effect. At the same time, the central rod 25 can be used as the installation reference of each baffle 26 to ensure the uniformity of the volume division of each reaction area 23.

[0074] Embodiment 3

[0075] See also Fig. 9 and Fig.10 As shown, as an optional embodiment of the first tube body 20, the first tube body 20 includes a first connecting tube 27, a second connecting tube 28 and at least two sub-tubes 29, the first connecting tube 27 has a feed cavity 270 with an upper opening, the second connecting tube 28 has a discharge cavity 280 with a lower opening, and at least two sub-tubes 29 are arranged between the first connecting tube 27 and the second connecting tube 28, and connect the feed cavity 270 and the discharge cavity 280.

[0076] During the purification process, the first connecting tube 27 serves as the feed end 21 of the first tube body to receive the quartz sand raw material provided by the feed assembly 40 and supplies it to each sub-tube 29; each sub-tube 29 serves as a reaction area; the second connecting tube 28 serves as the discharge end 22 of the first tube body to receive and discharge the purified quartz sand in each sub-tube 29.

[0077] Specifically, Fig. 9 and Fig.10 As shown, four sub-tubes 29 are arranged between the first connecting tube 27 and the second connecting tube 29. The four sub-tubes 29 have the same length and can be fixed together by welding. After welding, the end faces of the first ends of the four sub-tubes are flush horizontal planes, and the end faces of the second ends are also flush horizontal planes. When the four sub-tubes are connected to the first connecting tube 27 and the second connecting tube 29 respectively, they can also be connected by welding. After welding, the first ends of the four sub-tubes are sealed and connected to the first connecting tube 27, and the second ends of the four sub-tubes are sealed and connected to the second connecting tube 27.

[0078] By cooperating with the first connecting tube 27, the second connecting tube 28 and at least two sub-tubes 29, at least two reaction areas are formed on the first tube body 20; a method of splicing a plurality of sub-tubes 29 is provided to form a first tube body 20 having at least two reaction areas, which is convenient for processing the first tube body 20 and can reduce the processing cost of the first tube body 20.

[0079] See also Figure 2 , Figure 6 and Figure 8 As shown, as an optional embodiment of a gas supply component 30, the gas supply component 30 includes a gas supply flange 31 and an air inlet pipe 32; the gas supply flange 31 includes an air inlet port 310 and an air cavity 311, the air cavity 311 is connected with the air inlet pipe 32 via the air inlet port 310, the air cavity 311 is connected with each reaction area 23, the gas supply flange 31 is sealingly installed at the discharge end 22 of the first tube body, and the chlorinated gas is supplied into the air cavity 311 via the air inlet pipe 32 and supplied into each reaction area 23 from the air cavity 311.

[0080] Through the cooperation of the gas supply flange 31 and the gas inlet pipe 32, chlorination gas is supplied from the discharge end 22 of the first tube body to each reaction area 23. Chlorination gas is supplied from the discharge end 22 of the first tube body to each reaction area 23, and is filled from bottom to top. The chlorination gas requires sufficient pressure to overcome its own weight and move upward, so that the chlorination gas can fully react with the quartz sand and can evenly fill the entire chamber.

[0081] As an optional embodiment of the gas supply component 30, the gas supply component 30 also includes air guide tubes 33 corresponding to the reaction areas 23 one by one, the first end of each air guide tube 33 is connected to the air cavity 311, and the second end of each air guide tube 33 extends into the corresponding reaction area 23.

[0082] When the first tube 20 has Figure 5 When there are two reaction areas 23 as shown, two gas guide pipes 33 are provided correspondingly. Figure 7When there are four reaction areas 23 shown, four air guide tubes 33 are provided correspondingly. Each air guide tube has two ports, namely a first end and a second end. The first end of each air guide tube is connected to the air cavity 311, and the second end of each air guide tube extends into the corresponding reaction area. The distance that each air guide tube extends into the corresponding reaction area is preferably 100-150 mm. Such an extension distance can ensure that the air guide tube evenly distributes the chlorinated gas in the air cavity 311 to the corresponding reaction area, and can also ensure that the concentration of the chlorinated gas in the reaction area adjacent to the second end of the air guide tube is not lower than the concentration in other parts of the reaction area.

[0083] By providing the air guide pipe 33, the chlorinated gas in the air cavity 311 is guided to the corresponding reaction area 23, which facilitates the chlorinated gas to quickly enter the corresponding reaction area 23, and at the same time makes the concentration of the chlorinated gas in each reaction area 23 as consistent as possible, thereby ensuring the consistency of the purification effect of the quartz sand raw material in each reaction area 23.

[0084] See also Figure 4 As shown, the tube reactor also includes a rotation drive assembly 60. As an optional embodiment of the rotation drive assembly 60, the rotation drive assembly 60 includes a rotation drive motor 61, a transmission assembly 62, an active friction wheel 63 and a driven friction wheel 64 that cooperate with each other. The driven friction wheel 64 is fixedly mounted on the first tube body 20. The rotation drive motor 61 drives the active friction wheel 63 to rotate through the transmission assembly 62 to drive the driven friction wheel 64 to rotate, and then the driven friction wheel 64 drives the first tube body 20 to rotate.

[0085] Specifically, the transmission assembly 62 includes a driving wheel, a transmission wheel and a transmission belt. The driving wheel is installed on the rotating shaft of the rotary drive motor 61. The transmission wheel is coaxially connected to the driving friction wheel 63. The driving wheel and the transmission wheel are covered with a transmission belt.

[0086] By cooperating with the rotary drive motor 61, the transmission assembly 62, the active friction wheel 63 and the driven friction wheel 64, the first tube body 20 is driven to rotate, providing a rotary drive assembly 60 with a simple structure, low cost, high transmission efficiency and large torque.

[0087] See also Figure 6 As shown, as an optional implementation of the discharge end 22 of the first tube body, the discharge end 22 of the first tube body is provided with a plurality of discharge ports 200 along the circumference of the first tube body 20 , and the purified quartz sand is discharged through the discharge ports 200 .

[0088] During the purification process, the first tube body 20 is in a continuous rotation state, and a feed opening 200 is arranged along the circumference of the first tube body 20. When the first tube body 20 rotates, the purified quartz sand accumulated at the discharge end 22 of the first tube body can be discharged through different feed openings 200 in multiple rotation states, thereby ensuring the uniformity of the feed during rotation. Of course, in order to further improve the uniformity of the feed, a plurality of feed openings 200 can be evenly arranged around the circumference of the first tube body 20.

[0089] Specifically, each reaction area may be provided with 2 to 3 discharge ports corresponding to the discharge end 22 of the first tube body to achieve rapid discharge.

[0090] By arranging a plurality of discharge ports 200 in the circumferential direction of the discharge end 22 of the first tube body, when the first tube body 20 rotates, the purified quartz sand is discharged through the discharge port 200 at the bottom of the discharge end 22 of the first tube body, thereby achieving uniform discharge of the first tube body 20.

[0091] See also Figure 2 and Figure 7 As shown, as an optional implementation of the first tube body, the volume of each reaction region 23 is the same, and the projection size of each reaction region 23 on the cross section of the first tube body 20 is the same.

[0092] Since the first tube body 20 has at least two reaction areas, the feed assembly needs to supply quartz sand raw materials to each reaction area. During the process of purifying quartz sand, the first tube body 20 is in a rotating state, and each reaction area of ​​the first tube body 20 will rotate below the feed part of the feed assembly. The quartz sand raw materials supplied by the feed assembly will fall into the corresponding reaction area below.

[0093] The volume of each reaction area 23 and the projection size of each reaction area 23 in the cross section are set to be the same. When the feeding component 40 feeds different reaction areas 23, the quartz sand raw material can be fed at the same feeding speed, which is conducive to simplifying the purification control process.

[0094] For the present application, the feeding assembly 40 may only include Figure 2 The hopper shown in FIG. 1 is manually filled with quartz sand raw materials; it may also include Figure 2 The hopper shown in the figure, the silo connected to the hopper, and the discharge valve arranged between the silo and the hopper are used to supply quartz sand raw materials to the hopper by controlling the switch of the discharge valve.

[0095] Next, combine Figure 2 , Figure 6-8 The first tube body shown in the figure introduces the working principle of the tube reactor of the present application:

[0096] The quartz sand raw material enters a reaction area in the first tube body through the feeding assembly 40, and the rotation drive assembly 60 drives the first tube body 20 to rotate. During the rotation of the first tube body, the four reaction areas of the first tube body all receive the quartz sand raw material supplied by the feeding assembly 4. Driven by the first tube body, the quartz sand raw materials in the four reaction areas rotate and move downward along the first tube body.

[0097] Simultaneously, the gas supply assembly 30 first fills the chlorination gas into the gas cavity 311, and then passes the chlorination gas from the gas cavity 311 to the four gas pipes, and then passes the chlorination gas into the four reaction areas respectively through the four gas pipes.

[0098] When the first tube body 20 rotates continuously, the quartz sand raw materials in the four reaction areas roll along the inner walls of the reaction areas. While the quartz sand raw materials roll along the inner walls of the reaction areas, the quartz sand raw materials in the reaction areas are in dynamic contact with the chlorinated gas in the reaction areas. Under the heating of the heating component 50, the chlorinated gas in each reaction area reacts with the quartz sand to purify the quartz sand raw materials. When the quartz sand raw materials rotate and descend from the feed end of the first tube body to the discharge end of the first tube body, the purified quartz sand raw materials are discharged from the discharge port 200.

[0099] Compared with the prior art, the tubular reactor proposed in this embodiment has the following advantages:

[0100] 1) It can greatly increase the usable volume of the tube body and improve the purification efficiency; it can also improve the uniformity of the mixing of the quartz sand raw material and the chlorinated gas, greatly reducing the amount of chlorinated gas used and reducing the production cost.

[0101] 2) The gas supply component supplies gas to the corresponding reaction area through the gas guide pipe, so that the chlorinated gas can quickly enter the corresponding reaction area, and at the same time, the concentration of the chlorinated gas in each reaction area is kept as consistent as possible, thereby ensuring the consistency of the purification effect of the quartz sand raw material in each reaction area.

[0102] 3) The rotary drive assembly adopts a friction wheel transmission structure, which has a simple structure, low cost, high transmission efficiency and large torque.

[0103] 4) The material discharge openings are arranged along the circumference of the first tube body, so that uniform material discharge of the first tube body can be achieved.

[0104] On the other hand, see Figure 2 and Figure 3 As shown, the present application also proposes a high temperature chlorination treatment device, which includes the above-mentioned tube reactor and cooler, wherein:

[0105] The cooler includes a rotatable second tube body 70, the second tube body 70 has at least two cooling areas, each cooling area is extended from a feeding end 71 of the second tube body of the second tube body 70 to a discharging end 72 of the second tube body of the second tube body 70;

[0106] The feeding end 71 of the second tube body 70 is connected to the discharging end 22 of the first tube body 20. When the second tube body 70 rotates, each cooling area is driven to rotate synchronously, so that the purified quartz sand raw material received from the first tube body 20 in each cooling area rolls along the inner wall of each cooling area to achieve cooling of the purified quartz sand raw material in each cooling area. Specifically, the structure of the second tube body 70 is the same as that of the first tube body 20, which will not be repeated here.

[0107] Preferably, the number of cooling zones of the second tube body 70 is the same as the number of reaction zones of the first tube body 20. When the number of cooling zones is the same as the number of reaction zones, the quartz sand after treatment in each reaction zone can enter the cooling zone one by one, and the cooling treatment can be performed more evenly.

[0108] Preferably, the number of cooling areas of the second tube body 70 is greater than the number of reaction areas of the first tube body 20. When the number of cooling areas is greater, the quartz sand treated in one reaction area can at least enter one or more cooling areas for cooling, which can significantly shorten the cooling time.

[0109] Specifically, the cooler also includes a rotation drive assembly for driving the second tube body 70 to rotate. The rotation drive assembly 73 of the second tube body has the same structure as the rotation drive assembly 60, and will not be described again here.

[0110] Through the cooperation of the tube reactor and the cooler, the purification and cooling of the quartz sand raw material are realized, with high purification efficiency and good purification effect; the tube reactor adopts a setting form of at least two reaction areas, which can improve the purification efficiency and purification effect, and at the same time can also reduce the amount of chlorinated gas and reduce production costs; the cooler also adopts a setting form of at least two cooling areas, so that the purified quartz sand is dispersed in different cooling areas, thereby improving the cooling effect and reducing the cooling time.

[0111] As an embodiment, the high temperature chlorination treatment device also includes an auxiliary cooling component (not shown in the figure), which is arranged on the side of the second tube body 70, and the auxiliary cooling component is configured to perform auxiliary cooling on the purified quartz sand in each cooling area.

[0112] By providing an auxiliary cooling component, auxiliary cooling of the cooler is achieved, the cooling time is further shortened, and the cooling effect is improved.

[0113] As an embodiment, the second tube body 70 is tilted below the vertical projection of the first tube body 20 , the feed end 71 of the second tube body is higher than the discharge end 72 of the second tube body, and the tilt direction of the second tube body 70 is opposite to that of the first tube body 20 .

[0114] Specifically, the first tube body 20 is installed on the first bracket 80 , the second tube body 70 is installed on the second bracket 90 , and the first bracket 80 is located directly above the second bracket 90 .

[0115] By arranging the second tube body below the vertical projection of the first tube body, the lateral footprint of the equipment can be greatly reduced while cooling the purified quartz sand, and the structure is compact.

[0116] The working principle of the cooler is introduced below in combination with the various embodiments of the above cooler:

[0117] The rotation drive assembly 73 of the second tube body drives the second tube body to rotate, and the purified quartz sand enters the feed end 71 of the second tube body from the discharge end 22 of the first tube body, and enters the various cooling areas of the second tube body from the feed end 71 of the second tube body. The purified quartz sand rolls and descends in each cold zone until it rotates and descends to the discharge end 72 of the second tube body, and flows out from the discharge port at the discharge end 72 of the second tube body and enters the receiving barrel or storage bag.

[0118] The high temperature chlorination treatment device proposed in this embodiment has the following advantages compared with the prior art:

[0119] 1) The tubular reactor adopts a configuration of at least two reaction zones, which can improve the purification efficiency and purification effect, and can also reduce the amount of chlorinated gas and reduce production costs; the cooler also adopts a configuration of at least two cooling zones, so that the purified quartz sand is dispersed in different cooling zones, thereby improving the cooling effect and reducing the cooling time.

[0120] 2) An auxiliary cooling component is provided to further shorten the cooling time and improve the cooling effect.

[0121] 3) The cooler is arranged below the tube reactor, which can greatly reduce the lateral footprint of the equipment and has a compact structure.

[0122] The above embodiments are only to illustrate the basic principles and characteristics of the present application. The present application is not limited by the above examples. Without departing from the spirit and scope of the present application, the present application may be subject to various changes and modifications, which are within the scope of the present application to be protected. The scope of protection claimed in the present application is defined by the attached claims and their equivalents.

Claims

1. A tube reactor, It is characterized in that The tube reactor comprises a rotatable first tube body, a gas supply assembly, a material supply assembly and a heating assembly, the first tube body is arranged tilted, the material feed end of the first tube body is higher than the material discharge end of the first tube body, wherein: The first tube body has at least two reaction areas, each of which is extended from the feed end of the first tube body to the discharge end of the first tube body; the gas supply assembly is arranged at the discharge end of the first tube body, and the gas supply assembly is configured to supply chlorination gas from the discharge end of the first tube body to each of the reaction areas; the feed assembly is arranged at the feed end of the first tube body, and the feed assembly is configured to provide quartz sand raw material from the feed end of the first tube body to each of the reaction areas; the heating assembly is arranged at the periphery of the first tube body, and the heating assembly is configured to heat all the reaction areas; When the first tube body rotates, each reaction area is driven to rotate synchronously, so that the quartz sand raw material in each reaction area rolls along the inner wall of each reaction area, so as to achieve full contact between the quartz sand raw material and the chlorinated gas in each reaction area.

2. The tube reactor according to claim 1, It is characterized in that The first tube body includes at least one baffle plate, which is fixed in the first tube body along the length direction of the first tube body and forms at least two independent reaction areas in the first tube body.

3. The tube reactor according to claim 1, It is characterized in that The first tube body includes a central rod and at least two baffles extending along the length direction of the first tube body. The central rod is arranged on the central axis of the first tube body and extends along the length direction of the first tube body. All the baffles are radially fixed on the central rod with the central rod as the center to divide the internal space of the first tube body into at least two independent reaction areas.

4. The tube reactor according to claim 1, It is characterized in that The first pipe body comprises a first connecting pipe, a second connecting pipe and at least two sub-pipes, the first connecting pipe has a feed cavity with an upper opening, the second connecting pipe has a discharge cavity with a lower opening, the at least two sub-pipes are arranged between the first connecting pipe and the second connecting pipe, and connect the feed cavity with the discharge cavity; During the purification process, the first connecting pipe serves as the feed end of the first tube body to receive the quartz sand raw material provided by the feed assembly and supplies it to each sub-tube; each sub-tube serves as the reaction area; the second connecting pipe serves as the discharge end of the first tube body to receive and discharge the purified quartz sand in each sub-tube.

5. The tube reactor according to claim 1, It is characterized in that The gas supply assembly includes a gas supply flange and an air inlet pipe; the gas supply flange includes an air inlet and an air cavity, the air cavity is connected with the air inlet pipe via the air inlet, the air cavity is connected with each reaction area, the gas supply flange is sealingly installed at the discharge end of the first tube body, and the chlorinated gas is supplied into the air cavity via the air inlet pipe and then supplied into each reaction area from the air cavity.

6. The tube reactor according to claim 5, It is characterized in that The gas supply assembly also includes air guide tubes corresponding to the reaction areas one by one, the first end of each air guide tube is connected to the air cavity, and the second end of each air guide tube extends into the corresponding reaction area.

7. The tube reactor according to claim 1, It is characterized in that The tube reactor also includes a rotation drive assembly, which includes a rotation drive motor, a transmission assembly, an active friction wheel and a driven friction wheel that cooperate with each other, the driven friction wheel is fixedly sleeved on the first tube body, and the rotation drive motor drives the active friction wheel to rotate through the transmission assembly to drive the driven friction wheel to rotate, and then the driven friction wheel drives the first tube body to rotate.

8. The tube reactor according to claim 1, It is characterized in that The discharge end of the first tube body is provided with a plurality of discharge ports along the circumference of the first tube body, and the purified quartz sand is discharged through the discharge ports.

9. The tube reactor according to claim 1, It is characterized in that The volume of each of the reaction regions is the same, and the projection size of each of the reaction regions on the cross section of the first tube is the same.

10. A high temperature chlorination treatment device, It is characterized in that The high temperature chlorination treatment device comprises a tube reactor and a cooler as claimed in any one of claims 1 to 9, wherein: The cooler comprises a rotatable second tube body, the second tube body has at least two cooling areas, each of the cooling areas is extended from the feed end of the second tube body to the discharge end of the second tube body; The feed end of the second tube body is connected to the discharge end of the first tube body. When the second tube body rotates, it drives each cooling area to rotate synchronously, so that the purified quartz sand raw material received from the first tube body in each cooling area rolls along the inner wall of each cooling area to achieve cooling of the purified quartz sand raw material in each cooling area.

11. The high temperature chlorination treatment device according to claim 10, It is characterized in that The high-temperature chlorination treatment device further includes an auxiliary cooling component, which is disposed on the side of the second tube body and is configured to perform auxiliary cooling on the purified quartz sand in each cooling area.

12. The high temperature chlorination treatment device according to claim 10, It is characterized in that The second tube body is tiltedly arranged below the vertical projection of the first tube body, the feed end of the second tube body is higher than the discharge end of the second tube body, and the tilt direction of the second tube body is opposite to that of the first tube body.

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