Tubular reactor and high-temperature chlorination treatment device

Abstract

The invention 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] This application belongs to the technical field of chlorination roasting equipment, and particularly 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 melting quartz glass is mainly quartz sand, and the purity of quartz sand directly affects the final quality of quartz glass materials.

[0003] Currently, the mainstream purification process is to introduce chlorine gas into quartz sand to purify the purity of quartz sand. This purification process requires a high-temperature chlorination treatment device, which includes a rotatable tube body. During the purification process, quartz sand raw materials and chlorine gas are introduced into the tube body. To ensure sufficient contact between chlorine gas and quartz sand, quartz sand usually only occupies a small part of the space at 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. Summary of the Invention

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

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

[0006] In the first aspect, this application provides a tube reactor, which includes a rotatable first tube body, a gas supply component, a feeding component, and a heating component. The first tube body is arranged obliquely, and the feeding end of the first tube body is higher than the discharging end of the first tube body, where:

[0007] The first tube body has at least two reaction regions, and each reaction region extends from the feeding end of the first tube body to the discharging end of the first tube body; the gas supply component is arranged at the discharging end of the first tube body, and the gas supply component is configured to supply chlorine gas into each reaction region from the discharging end of the first tube body; the feeding component is arranged at the feeding end of the first tube body, and the feeding component is configured to provide quartz sand raw materials into each reaction region from the feeding end of the first tube body; the heating component is arranged on the outer periphery of the first tube body, and the heating component is configured to heat all reaction regions;

[0008] When the first tube body rotates, it drives each reaction region to rotate synchronously, so that the quartz sand raw materials in each reaction region roll along the inner wall of their respective reaction regions to achieve sufficient contact between the quartz sand raw materials and chlorine gas in each reaction region.

[0009] By arranging at least two reaction zones in the first tube body, during the purification of the quartz sand raw material, the quartz sand raw material in each reaction zone can tumble within the corresponding reaction zone ， so as to fully contact the chlorine gas in the reaction zone and complete the purification of the quartz sand raw material. Compared with the tube body with only one reaction zone in the prior art, i.e., a straight tube with a hollow interior, under the same pipe diameter, the usable volume of the tube body can be greatly increased, improving the purification efficiency; moreover, it can also improve the uniformity of the mixing of the quartz sand raw material and the chlorine gas, greatly reducing the consumption of the chlorine gas and lowering the production cost.

[0010] Optionally, the first tube body includes at least one partition plate, and at least one partition plate is fixed in the first tube body along the length direction of the first tube body, and at least two independent reaction zones are formed in the first tube body.

[0011] By dividing the reaction zone in the first tube body along the length direction of the first tube body through the partition plate, at least two independent reaction zones are formed in the first tube body; at the same time, the partition plate is directly fixed in the first tube body, which is convenient for directly transforming the existing tube body, and the overall structure is simple and convenient for processing.

[0012] Optionally, the first tube body includes a central rod and at least two ribs 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 ribs 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 zones.

[0013] Through the cooperation of the central rod and at least two ribs, the internal space in the first tube body is divided into at least two independent reaction zones along the length direction of the first tube body. At the same time, the central rod can be used as the installation reference for each rib, which can ensure the uniformity of the volume division of each reaction zone.

[0014] Optionally, the first tube body includes a first connecting pipe, a second connecting pipe and at least two sub-tubes. The first connecting pipe has a feeding cavity with an upper opening, the second connecting pipe has a discharging cavity with a lower opening, and at least two sub-tubes are arranged between the first connecting pipe and the second connecting pipe and communicate the feeding cavity and the discharging cavity;

[0015] During the purification process, the first connecting pipe serves as the feeding end of the first tube body to receive the quartz sand raw material provided by the feeding assembly and supply it to each sub-tube; each sub-tube serves as a reaction zone; the second connecting pipe serves as the discharging end of the first tube body to receive and discharge the quartz sand after purification treatment in each sub-tube.

[0016] Through the cooperation of the first connecting pipe, the second connecting pipe and at least two sub-pipes, at least two reaction regions are formed on the first pipe body; by using the splicing method of multiple sub-pipes to obtain the first pipe body with at least two reaction regions, the processing cost of the first pipe body can be reduced.

[0017] Optionally, the gas supply assembly includes a gas supply flange and an inlet pipe; the gas supply flange includes an air inlet and an air cavity, the air cavity is communicated with the inlet pipe through the air inlet, the air cavity is communicated with each reaction region, the gas supply flange is sealed and installed at the discharge end of the first pipe body, and the chlorine-containing gas is supplied into the air cavity through the inlet pipe and then supplied into each reaction region from the air cavity.

[0018] Through the cooperation of the gas supply flange and the inlet pipe, the chlorine-containing gas is supplied into each reaction region from the discharge end of the first pipe body.

[0019] Optionally, the gas supply assembly further includes a gas guide pipe corresponding to each reaction region one by one, the first end of each gas guide pipe is communicated with the air cavity, and the second end of each gas guide pipe extends into the corresponding reaction region.

[0020] By providing the gas guide pipe, the chlorine-containing gas in the air cavity is guided into the corresponding reaction region, which is convenient for the chlorine-containing gas to quickly enter the corresponding reaction region, and at the same time makes the concentration of the chlorine-containing gas in each reaction region as consistent as possible, so as to ensure the consistency of the purification effect of the quartz sand raw material in each reaction region.

[0021] Optionally, the tube reactor further includes a rotation driving assembly, the rotation driving assembly includes a rotation driving motor, a transmission assembly, a driving friction wheel and a driven friction wheel that cooperate with each other, the driven friction wheel is fixedly sleeved on the first pipe body, and the rotation driving motor drives the driving 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 pipe body to rotate.

[0022] Through the cooperation of the rotation driving motor, the transmission assembly, the driving friction wheel and the driven friction wheel, the rotation of the first pipe body is driven, and a rotation driving assembly with a simple structure, low cost, high transmission efficiency and large torque is provided.

[0023] Optionally, a plurality of discharge ports are formed in the circumferential direction of the discharge end of the first pipe 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 pipe body, when the first pipe body rotates, the purified quartz sand is discharged through the discharge port located at the bottom of the discharge end, realizing the uniform discharging of the first pipe body.

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

[0026] The volumes of the respective reaction zones and the projected sizes of the respective reaction zones in the cross-section are all set to be the same. When the feeding assembly feeds materials to different reaction zones, the quartz sand raw materials can be supplied at the same feeding speed, which is beneficial to simplifying the control process of purification.

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

[0028] The cooler includes a rotatable second tube body, and the second tube body has at least two cooling zones, and each cooling zone extends from the feeding end of the second tube body to the discharging end of the second tube body;

[0029] The feeding end of the second tube body is butted against the discharging end of the first tube body. When the second tube body rotates, it drives each cooling zone to rotate synchronously, so that the purified quartz sand raw materials received from the first tube body in each cooling zone roll along the inner wall of their respective cooling zones, so as to realize the cooling of the purified quartz sand raw materials in each cooling zone.

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

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

[0032] By setting the auxiliary cooling assembly, the auxiliary cooling of the cooler is realized, further shortening the cooling time and improving the cooling effect.

[0033] Optionally, the second tube body is inclined and arranged below the vertical projection of the first tube body, the feeding end of the second tube body is higher than the discharging end of the second tube body, and the inclination direction of the second tube body is opposite to the inclination direction of the first tube body.

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

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

[0036] Figure 2 is a schematic perspective view of the high-temperature chlorination treatment device provided by an embodiment of the present application from the first perspective;

[0037] Figure 3 is a schematic perspective view of the high-temperature chlorination treatment device provided by an embodiment of the present application from the second perspective;

[0038] Figure 4 is a partial schematic structural view of the rotation drive assembly of the high-temperature chlorination treatment device provided by an embodiment of the present application;

[0039] Figure 5 is a schematic cross-sectional view of the first pipe body provided by Embodiment 1 of the present application;

[0040] Figure 6 is a schematic perspective view of the first pipe body provided by Embodiment 2 of the present application;

[0041] Figure 7 is a schematic internal structure view of the first pipe body provided by Embodiment 2 of the present application;

[0042] Figure 8 is a schematic cross-sectional view of the discharge end of the first pipe body provided by Embodiment 2 of the present application;

[0043] Figure 9 is a schematic structural view of the first pipe body provided by Embodiment 3 of the present application;

[0044] Figure 10 is a connection schematic diagram of the sub-pipe and the first connection pipe of the first pipe body provided by Embodiment 3 of the present application.

[0045] Figures 1 to 10 includes the following reference numerals:

[0046] pipe body 10, quartz sand raw material 11, chlorination gas 12;

[0047] first pipe body 20, feeding port 200, feeding end 21 of the first pipe body, discharging end 22 of the first pipe body, reaction area 23, partition plate 24, central rod 25, retaining strip 26, first connection pipe 27, feeding cavity 270, second connection pipe 28, discharging cavity 280, sub-pipe 29;

[0048] gas supply assembly 30, gas supply flange 31, gas inlet 310, gas cavity 311, gas inlet pipe 32, gas guide pipe 33, feeding assembly 40;

[0049] heating assembly 50;

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

[0051] The second tube body 70, the feed end 71 of the second tube body, the discharge end 72 of the second tube body, the rotation drive assembly 73 of the second tube body;

[0052] The first support 80;

[0053] The second support 90. Specific embodiments

[0054] To make the above objects, features, and advantages of the present application more obvious and understandable, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

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

[0056] Currently, the mainstream purification process is to introduce a chlorinating gas into quartz sand to purify the purity of quartz sand. This purification process requires a high-temperature chlorination treatment device. Please refer to Figure 1 As shown, the existing high-temperature chlorination treatment device includes a rotatable tube body 10 ( Figure 1 The arrow direction in is the rotation direction of the tube body 10). During the purification process, quartz sand raw material 11 and chlorinating gas 12 are introduced into the tube body 10. To ensure sufficient contact between the chlorinating gas 12 and the quartz sand raw material 11, the quartz sand raw material 11 usually only occupies a small part of the bottom wall of the tube body 10 (usually about one-fifth of the cross-sectional area of the tube body 10), which results in most of the space of the tube body 10 not being fully utilized, and the purification efficiency is low; at the same time, four-fifths of the remaining cross-sectional area of the tube body 10 needs to be filled with the chlorinating gas 12, and the consumption of the chlorinating gas 12 is also large, and the purification cost is high.

[0057] Therefore, the present application proposes a tube reactor. Please refer to Figure 2 、 Figure 6 and Figure 7As shown in the figure, the tube reactor proposed in the embodiment of the present application includes a rotatable first tube body 20, a gas supply assembly 30, a feeding assembly 40, and a heating assembly 50. The first tube body 20 is arranged obliquely, and the feeding end 21 of the first tube body is higher than the discharging end 22 of the first tube body. Among them, the first tube body 20 has at least two reaction zones 23, and each reaction zone 23 extends from the feeding end 21 of the first tube body to the discharging end 22 of the first tube body; the gas supply assembly 30 is arranged at the discharging end 22 of the first tube body, and the gas supply assembly 30 is configured to supply a chlorinated gas into each reaction zone 23 from the discharging end 22 of the first tube body. The chlorinated gas can be any one of chlorine, hydrogen chloride, chlorine, sodium chloride, potassium chloride, and calcium chloride; the feeding assembly 40 is arranged at the feeding end 21 of the first tube body, and the feeding assembly 40 is configured to provide a quartz sand raw material into each reaction zone 23 from the feeding end 21 of the first tube body; the heating assembly 50 is arranged on the outer periphery of the first tube body 20, and the heating assembly 50 is configured to heat all the reaction zones 23. Optionally, the heating assembly 50 can 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 zone 23 to rotate synchronously, so that the quartz sand raw material in each reaction zone 23 tumbles along the inner wall of its respective reaction zone 23, so as to realize the full contact between the quartz sand raw material and the chlorinated gas in each reaction zone 23.

[0059] By arranging at least two reaction zones 23 in the first tube body 20, when purifying the quartz sand raw material, the quartz sand raw material in each reaction zone 23 can tumble in the corresponding reaction zone 23 ， to fully contact the chlorinated gas in its respective reaction zone 23 and complete the purification of the quartz sand raw material. Compared with the tube body with only one reaction zone in the prior art, under the same pipe diameter, the use volume of the tube body can be greatly increased, and the purification efficiency can be improved; moreover, the uniformity of the mixing of the quartz sand raw material and the chlorinated gas can also be improved, greatly reducing the consumption of the chlorinated gas and reducing the production cost.

[0060] In the specific application process, the first tube body 20 can adopt different structures according to needs, and the following examples will be described one by one:

[0061] Embodiment 1

[0062] Please refer to Figure 5 As shown in the figure, as an optional implementation manner of the first tube body 20, the first tube body 20 includes at least one partition plate 24, and at least one partition 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 zones 23 in the first tube body 20.

[0063] Specifically, the structure of the first tube body 20 can be as follows: The first tube body 20 includes a partition plate 24. The inner space of the first tube body 20 is divided into two independent reaction regions 23 extending along the length direction of the first tube body 20 by a partition plate 24.

[0064] Specifically, the structure of the first tube body 20 can also be as follows: The first tube body 20 includes two partition plates 24. The two partition plates 24 are fixedly cross-shaped in the first tube body 20 to form four independent reaction regions 23 in the first tube body 20.

[0065] It should be noted that the number of the partition plates 24 can also be other numbers other than those in the above examples. The number of the partition plates 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 partition plate 24 can effectively improve the purification efficiency; in some production scenarios, two partition plates 24 are required to effectively improve the purification efficiency; in some other production scenarios, three partition plates 24 are required to effectively improve the purification efficiency.

[0066] By dividing the reaction region 23 in the first tube body 20 along the length direction of the first tube body by the partition plate 24, at least two independent reaction regions 23 are formed in the first tube body 20. The independent reaction regions are more convenient for the purification reactions in each reaction region, and there will be no mutual interference, which can improve the purification effect in each reaction region and maintain the consistency of the purification effect. At the same time, the partition plate 24 is directly fixed in the first tube body 20, which is convenient for directly transforming the existing tube body. The overall structure is simple and convenient for processing.

[0067] Embodiment 2

[0068] Please refer to Figures 6 to 8 As shown, as an optional implementation manner of the first tube body 20, the first tube body 20 includes a central rod 25 and at least two strip-shaped blocks 26 extending along the length direction of the first tube body 20. 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 strip-shaped blocks 26 are radially fixed on the central rod 25 with the central rod 25 as the center to divide the inner space of the first tube body 20 into at least two independent reaction regions 23.

[0069] Specifically, the structure of the first tube body 20 can be: The first tube body 20 includes four strip-shaped blocks 26. The four strip-shaped blocks 26 are radially fixed on the central rod 25 with the central rod 25 as the center. The cooperation of the four strip-shaped blocks 26 and the central rod 25 divides the inner space of the first tube body 20 into four independent reaction regions 23.

[0070] Specifically, the structure of the first tube body 20 can be as follows: The first tube body 20 includes two retaining bars 26. The two retaining bars 26 are radially fixed on the central rod 25 with the central rod 25 as the center. The included angle between the two retaining bars 26 is 180 degrees, and the internal space of the first tube body 20 is evenly divided into two independent reaction regions 23.

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

[0072] It should be noted that the number of the retaining bars 26 can also be other numbers other than those in the above examples. The number of the retaining bars 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 retaining bars 26 can effectively improve the purification efficiency; in some production scenarios, three retaining bars 26 can effectively improve the purification efficiency; in some other production scenarios, four retaining bars 26 can effectively improve the purification efficiency.

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

[0074] Embodiment III

[0075] Please refer to Figure 9 and Figure 10 As shown, as an optional implementation manner 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 feeding cavity 270 with an upper end opening. The second connecting tube 28 has a discharging cavity 280 with a lower end opening. At least two sub-tubes 29 are arranged between the first connecting tube 27 and the second connecting tube 28 and connect the feeding cavity 270 and the discharging cavity 280.

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

[0077] Specifically, asFigure 9 and Figure 10 As shown in Figure 10 , four sub-tubes 29 are provided 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. The end faces of the first ends of the four welded sub-tubes are flush horizontal planes, and the end faces of the second ends are also flush horizontal planes. When connecting the four sub-tubes to the first connecting tube 27 and the second connecting tube 29 respectively, welding can also be used for connection. After welding, the first ends of the four sub-tubes are in sealed communication with the first connecting tube 27, and the second ends of the four sub-tubes are in sealed communication with the second connecting tube 27.

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

[0079] Please refer to Figure 2 、 Figure 6 and Figure 8 As shown in Figure 8 , as an optional embodiment of the gas supply assembly 30, the gas supply assembly 30 includes a gas supply flange 31 and an inlet pipe 32; the gas supply flange 31 includes an air inlet 310 and an air cavity 311. The air cavity 311 is communicated with the inlet pipe 32 through the air inlet 310, and the air cavity 311 is communicated with each reaction region 23. The gas supply flange 31 is sealed and installed at the discharge end 22 of the first tube body, and the chlorine gas is supplied into the air cavity 311 through the inlet pipe 32 and supplied into each reaction region 23 from the air cavity 311.

[0080] Through the cooperation of the gas supply flange 31 and the inlet pipe 32, the chlorine gas is supplied into each reaction region 23 from the discharge end 22 of the first tube body. When supplying the chlorine gas into each reaction region 23 from the discharge end 22 of the first tube body and filling it from bottom to top, the chlorine gas needs sufficient pressure to overcome its own weight and move upward, which can make the chlorine gas react fully with the quartz sand and uniformly fill the entire chamber.

[0081] As an optional embodiment of the gas supply assembly 30, the gas supply assembly 30 further includes a gas guide pipe 33 corresponding to each reaction region 23. The first end of each gas guide pipe 33 is communicated with the air cavity 311, and the second end of each gas guide pipe 33 extends into the corresponding reaction region 23.

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

[0083] By setting the gas guide pipe 33, the chlorine gas in the gas cavity 311 is guided into the corresponding reaction zone 23, which facilitates the rapid entry of the chlorine gas into the corresponding reaction zone 23. At the same time, the concentration of chlorine gas in each reaction zone 23 is kept as consistent as possible, thereby ensuring the consistency of the purification effect of the quartz sand raw material in each reaction zone 23.

[0084] Please refer to Figure 4 As shown, the tube reactor further includes a rotation driving assembly 60. As an optional embodiment of the rotation driving assembly 60, the rotation driving assembly 60 includes a rotation driving motor 61, a transmission assembly 62, a driving friction wheel 63 and a driven friction wheel 64 that cooperate with each other. The driven friction wheel 64 is fixedly sleeved on the first tube body 20. The rotation driving motor 61 drives the driving 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 rotation driving motor 61. The transmission wheel is coaxially connected with the driving friction wheel 63, and the driving wheel and the transmission wheel are sleeved with the transmission belt.

[0086] Through the cooperation of the rotation driving motor 61, the transmission assembly 62, the driving friction wheel 63 and the driven friction wheel 64, the rotation of the first tube body 20 is driven, providing a rotation driving assembly 60 with a simple structure, low cost, high transmission efficiency and large torque.

[0087] Please refer to Figure 6 As shown, as an optional embodiment of the discharge end 22 of the first tube body, a plurality of discharge openings 200 are provided along the circumferential direction of the first tube body 20. The purified quartz sand is discharged through the discharge openings 200.

[0088] During the purification process, the first tube body 20 is in a continuous rotating state. A material discharge port 200 is provided along the circumferential direction 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 material discharge ports 200 in multiple rotating states, thereby ensuring the uniformity of material discharge during rotation. Of course, in order to further improve the uniformity of material discharge, several material discharge ports 200 can be evenly arranged in the circumferential direction of the first tube body 20.

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

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

[0091] Please refer to Figure 2 and Figure 7 As shown, as an optional implementation manner of the first tube body, the volume of each reaction area 23 is the same, and the projection size of each reaction area 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 feeding assembly needs to supply quartz sand raw materials to each reaction area. During the process of purifying quartz sand in the first tube body 20, the first tube body 20 is in a rotating state, and each reaction area of the first tube body 20 will rotate to the lower part of the feeding position of the feeding assembly. The quartz sand raw materials supplied by the feeding assembly will fall into the corresponding reaction area below.

[0093] By setting the volume of each reaction area 23 and the projection size of each reaction area 23 on the cross-section to be the same, when the feeding assembly 40 supplies materials to different reaction areas 23, quartz sand raw materials can be supplied at the same feeding speed, which is beneficial to simplifying the control process of purification.

[0094] For the feeding assembly 40 in the present application, it may only include Figure 2 the hopper shown in Figure 2 and quartz sand raw materials are added to the hopper manually; it may also include

[0095] the hopper shown in Figure 2 、 Figures 6 - 8 a silo communicated with the hopper, and a feeding valve arranged between the silo and the hopper. By controlling the opening and closing of the feeding valve, the supply of quartz sand raw materials to the hopper is realized.

[0095] Next, in combination with Figure 2 、 Figures 6 - 8 the first tube body shown in

[0096] The quartz sand raw material enters a reaction area in one of the first tubes through the feeding assembly 40. The rotation driving assembly 60 drives the first tube 20 to rotate. During the rotation of the first tube, the quartz sand raw material supplied by the feeding assembly 4 is received in all four reaction areas of the first tube. Driven by the first tube, the quartz sand raw material in the four reaction areas rotates and moves downward along the first tube.

[0097] Synchronously, the gas supply assembly 30 first fills the chlorinated gas into the gas chamber 311, and then the gas chamber 311 leads it into the four gas guide pipes, and the four gas guide pipes respectively lead it into the four reaction areas.

[0098] When the first tube 20 rotates continuously, the quartz sand raw material in the four reaction areas tumbles along the inner wall of the reaction area. While the quartz sand raw material tumbles along the inner wall of the reaction area, the quartz sand raw material in the reaction area dynamically contacts the chlorinated gas in the reaction area continuously. Under the heating of the heating assembly 50, the chlorinated gas in each reaction area reacts with the quartz sand to purify the quartz sand raw material. After the quartz sand raw material rotates and descends from the feeding end to the discharging end of the first tube, the purified quartz sand raw material is discharged through the discharging port 200.

[0099] The tube reactor proposed in this embodiment has the following advantages compared with the prior art:

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

[0101] 2) The gas supply assembly supplies gas to the corresponding reaction area through the gas guide pipe, which is convenient for the chlorinated gas to quickly enter the corresponding reaction area, and at the same time makes the concentration of the chlorinated gas in each reaction area 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 rotation driving assembly adopts a friction wheel transmission structure, which has a simple structure, low cost, high transmission efficiency and large torque.

[0103] 4) The discharging port is arranged along the circumferential direction of the first tube, which can realize uniform discharging of the first tube.

[0104] On the other hand, please refer to 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 a cooler, wherein:

[0105] The cooler includes a rotatable second tube body 70 which has at least two cooling regions, and each cooling region extends from the feed end 71 of the second tube body of the second tube body 70 to the discharge end 72 of the second tube body of the second tube body 70;

[0106] The feed end 71 of the second tube body of the second tube body 70 is docked with the discharge end 22 of the first tube body of the first tube body 20. When the second tube body 70 rotates, it drives each cooling region to rotate synchronously, so that the purified quartz sand raw material received from the first tube body 20 in each cooling region rolls along the inner wall of its respective cooling region, thereby realizing the cooling of the purified quartz sand raw material in each cooling region. Specifically, the structure of the second tube body 70 is the same as that of the first tube body 20, and will not be elaborated here.

[0107] Preferably, the number of cold regions of the second tube body 70 is the same as the number of reaction regions of the first tube body 20. When the number of cooling regions is the same as the number of reaction regions, the quartz sand processed in each reaction region can enter the cooling regions one by one, and the cooling treatment can be carried out more evenly.

[0108] Preferably, the number of cooling regions of the second tube body 70 is greater than the number of reaction regions of the first tube body 20. When the number of cooling regions is more, the quartz sand processed by one reaction region can enter at least one or more cooling regions for cooling, which can greatly shorten the cooling time.

[0109] Specifically, the cooler also includes a rotary drive assembly for driving the second tube body 70 to rotate. The rotary drive assembly 73 of the second tube body has the same structure as the rotary drive assembly 60, and will not be elaborated 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 with at least two reaction regions, which can improve the purification efficiency and purification effect, and at the same time can reduce the consumption of chlorinated gas and lower the production cost; the cooler also adopts a setting form with at least two cooling regions, so that the purified quartz sand is dispersed in different cooling regions, improving the cooling effect and reducing the cooling time.

[0111] As an implementation manner, the high-temperature chlorination treatment device further includes an auxiliary cooling assembly (not shown in the figure). The auxiliary cooling assembly is arranged on the side of the second tube body 70 and is configured to assist in cooling the purified quartz sand in each cooling region.

[0112] By setting the auxiliary cooling assembly, the auxiliary cooling of the cooler is realized, further shortening the cooling time and improving the cooling effect.

[0113] As an implementation manner, the second pipe body 70 is inclined and arranged below the vertical projection of the first pipe body 20. The feed end 71 of the second pipe body is higher than the discharge end 72 of the second pipe body, and the inclination direction of the second pipe body 70 is opposite to that of the first pipe body 20.

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

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

[0116] Next, in combination with the above various implementation manners of the cooler, the working principle of the cooler will be introduced:

[0117] The rotation drive assembly 73 of the second pipe body drives the second pipe body to rotate. The purified quartz sand enters the feed end 71 of the second pipe body from the discharge end 22 of the first pipe body, and enters each cooling area of the second pipe body from the feed end 71 of the second pipe body. The purified quartz sand tumbles and descends in each cold area until it rotates and descends to the discharge end 72 of the second pipe body, and flows out through the discharge port at the discharge end 72 of the second pipe body and enters the receiving barrel or the 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 tube reactor adopts a setting form with at least two reaction areas, which can improve the purification efficiency and purification effect, and at the same time can also reduce the consumption of chlorinated gas and lower the production cost; the cooler also adopts a setting form with at least two cooling areas, so that the purified quartz sand is dispersed in different cooling areas, improving the cooling effect and reducing the cooling time.

[0120] 2) An auxiliary cooling assembly 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 floor area of the equipment and the structure is compact.

[0122] The above embodiments only 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, there are various changes and modifications to the present application, and these changes and modifications all fall within the scope of the present application claimed. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A tube reactor, characterized in that, The tube reactor includes a rotatable first tube body, a gas supply assembly, a feeding assembly, and a heating assembly. The first tube body is arranged obliquely, and the feeding end of the first tube body is higher than the discharging end of the first tube body, where: The first tube body has at least two reaction zones, and each of the reaction zones extends from the feeding end of the first tube body towards the discharging end of the first tube body; the gas supply assembly is arranged at the discharging end of the first tube body, and the gas supply assembly is configured to supply a chlorinated gas into each of the reaction zones from the discharging end of the first tube body; the feeding assembly is arranged at the feeding end of the first tube body, and the feeding assembly is configured to provide a quartz sand raw material into each of the reaction zones from the feeding end of the first tube body; the heating assembly is arranged on the outer periphery of the first tube body, and the heating assembly is configured to heat all of the reaction zones; When the first tube body rotates, it drives each of the reaction zones to rotate synchronously, so that the quartz sand raw material in each of the reaction zones tumbles along the inner wall of its respective reaction zone, so as to achieve full contact between the quartz sand raw material and the chlorinated gas in each reaction zone.

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

3. The tubular reactor according to claim 1, wherein, The first tube body includes a central rod and at least two bars 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 of the bars are radially fixed on the central rod with the central rod as the center, so as to evenly divide the inner space of the first tube body into at least two independent reaction zones.

4. The tube reactor according to claim 1, wherein 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 feeding cavity with an upper opening, the second connecting tube has a discharging 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 communicate the feeding cavity and the discharging cavity; During the purification process, the first connecting tube serves as the feeding end of the first tube body to receive the quartz sand raw material provided by the feeding assembly and supply it to each sub-tube; each sub-tube serves as the reaction zone; the second connecting tube serves as the discharging end of the first tube body to receive and discharge the quartz sand after purification in each sub-tube.

5. The tubular reactor according to claim 1, characterized in that, The gas supply assembly includes a gas supply flange and an inlet pipe; the gas supply flange includes an air inlet and an air cavity, the air cavity is communicated with the inlet pipe through the air inlet, the air cavity is communicated with each reaction zone, the gas supply flange is sealed and installed at the discharging end of the first tube body, and the chlorinated gas is supplied into the air cavity through the inlet pipe and supplied into each reaction zone by the air cavity.

6. The tube reactor according to claim 5, wherein The gas supply assembly further includes a gas guide pipe corresponding to each reaction zone one by one. The first end of each gas guide pipe is communicated with the air cavity, and the second end of each gas guide pipe extends into the corresponding reaction zone.

7. The tube reactor according to claim 1, characterized in that, The tube reactor further includes a rotation driving assembly, which includes a rotation driving motor, a transmission assembly, a driving 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 driving motor drives the driving friction wheel to rotate through the transmission assembly, so as to drive the driven friction wheel to rotate, and then drive the first tube body to rotate by the driven friction wheel.

8. The tube reactor according to claim 1, characterized in that, A plurality of discharge openings are formed in the circumferential direction of the discharge end of the first tube body, and the purified quartz sand is discharged through the discharge openings.

9. The tube reactor according to claim 1, wherein, 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.

10. A high-temperature chlorination treatment device, characterized in that, The high-temperature chlorination treatment device includes the tube reactor and a cooler as described in any one of claims 1-9, wherein: The cooler includes a rotatable second tube body, and the second tube body has at least two cooling areas, and each cooling area extends 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 butted against 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 its respective cooling area, so as to realize the cooling of the purified quartz sand raw material in each cooling area.

11. The high-temperature chlorination treatment device according to claim 10, characterized in that, The high-temperature chlorination treatment device further includes an auxiliary cooling assembly, and the auxiliary cooling assembly is arranged on the side of the second tube body, and the auxiliary cooling assembly 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, characterized in that, 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 the inclination direction of the first tube body.

Images