Vertical quartz sand high-temperature gasification purification device and purification method thereof
Through the design of the bulk material collection module in the vertically installed reactor and reaction tube, the problems of material accumulation and uneven gas distribution in the horizontal chlorination equipment are solved, and efficient and stable purification of high-purity quartz sand is achieved, reducing production costs.
Patent Information
- Application Number
- CN202510680821.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-26
- Publication Date
- 2025-08-15
AI Technical Summary
Materials are easy to accumulate in existing horizontal chlorination equipment, the gas contact area is limited, the reaction efficiency is low, and the uneven gas distribution leads to large fluctuations in metal impurities removal rates in high-purity quartz sand.
A vertically installed reactor and reaction tube are used. Multiple heating zones with increasing temperatures are set up in the reactor. A bulk material collection module is installed in the reaction tube. The dispersion and collection of quartz sand materials are realized through the umbrella and funnel-like structures to ensure uniform contact with the reaction gas and achieve continuous production.
It improves the reaction efficiency, stabilizes the purification effect, reduces production costs, and realizes the continuous production of high-purity quartz sand.
Smart Images
Figure CN120479301A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of mineral processing, and in particular to a vertical quartz sand high-temperature gasification purification device and a purification method thereof. Background Art
[0002] High-purity quartz sand is made from selected, processed, and purified natural crystals, quartz sandstone, vein quartz, and granite quartz. High-purity quartz sand exhibits excellent chemical stability, high insulation and withstand voltage, and a very low coefficient of volume expansion. It is widely used in strategic emerging industries such as next-generation information technology, new materials, and energy conservation and environmental protection.
[0003] High-purity quartz sand has extremely high requirements for the purity of SiO2, and almost no metal ions such as iron, titanium, chromium, zirconium, lithium, potassium, sodium, and inclusion hydroxyl groups are allowed to exist. Among them, it is almost impossible to remove alkaline metal lattice impurities such as sodium and potassium through conventional flotation and acid leaching processes. At present, quartz sand production companies mainly use horizontal chlorination equipment to remove alkaline metal lattice impurities such as sodium and potassium in high-purity quartz sand. However, the horizontal chlorination equipment has the following shortcomings: 1. Materials are easily accumulated in the horizontal chlorination equipment, resulting in limited gas contact area and low reaction efficiency; 2. The active intake gas in the horizontal chlorination equipment is unevenly distributed, resulting in large fluctuations in the removal rate of metal impurities in high-purity quartz sand. Based on this, the present application provides a vertical quartz sand high-temperature gasification purification device and a purification method thereof with uniform gas distribution, good purification effect and continuous production. Summary of the Invention
[0004] In order to solve the above technical problems, the present invention provides a vertical quartz sand high-temperature gasification and purification device, comprising a frame, a reactor is vertically installed on the frame, a plurality of heating zones with increasing temperature are sequentially arranged from top to bottom in the reactor, and a reaction tube is vertically installed in the reactor, the reaction tube comprises a plurality of bulk material receiving modules connected in sequence, the upper end of each bulk material receiving module is provided with an umbrella-shaped bulk material feeder, and the lower end of each bulk material receiving module is provided with a funnel-shaped feeder, the upper end of the reaction tube passes through the reactor and is connected to a feed port and an exhaust port at the end, and the lower end of the reaction tube passes through the lower end of the reactor and is connected to a discharge port and an air inlet at the end, wherein the temperature of the heating zone in the reactor is 800-1300°C.
[0005] In some embodiments, each of the heating zones is connected to a plurality of groups of heating carbon rods, and each heating zone is provided with a temperature sensing probe.
[0006] In some embodiments, the temperature difference between two adjacent heating zones is 100-200°C.
[0007] In some embodiments, the corresponding heating zones on the outside of the reactor are all covered with a thermal insulation interlayer.
[0008] In some embodiments, waste gas collection systems are provided at both the upper and lower ends of the reaction tube.
[0009] In some embodiments, the lower end of the reaction tube is fixedly connected to the frame via a flange.
[0010] In some embodiments, a vibrating feeder is further included, wherein the discharge end of the vibrating feeder is connected to the feed port.
[0011] In some embodiments, a partition is provided between two adjacent bulk material receiving modules, and a discharge hole is opened on the partition. The funnel-shaped material receiver provided at the lower end of the upper bulk material receiving module and the umbrella-shaped bulk material receiver provided at the upper end of the next bulk material receiving module are connected through the discharge hole.
[0012] In some embodiments, a cooling mechanism is further included, which is connected to the discharge port and is used to cool the high-purity quartz sand output from the discharge port.
[0013] The present application also provides a method for purifying quartz sand by high-temperature gasification. The method is based on the vertical quartz sand high-temperature gasification purification device described above to purify quartz sand, and specifically includes the following steps:
[0014] S100, controlling the temperature of each heating zone in the reactor to reach the corresponding temperature value and keeping it warm;
[0015] S200, hydrogen chloride gas or chlorine gas is delivered from the lower end of the reactor into the reactor through the air inlet and discharged from the exhaust port, while quartz sand is delivered from the upper end of the reactor into the reaction tube through the feed inlet, and multiple bulk material receiving modules are used to ensure sufficient contact and reaction between the quartz sand and the hydrogen chloride gas or chlorine gas;
[0016] S300, collecting the high-purity quartz sand after sufficient reaction in the reaction tube from the discharge port, thereby completing the purification operation of the high-purity quartz sand.
[0017] Compared with the prior art, the present application provides a vertical quartz sand high-temperature gasification purification device and a purification method thereof. The device vertically installs the reactor and the reaction tube on a frame, and the reaction gas enters the reaction tube from the air inlet provided at the lower end of the reaction tube, so that the reaction gas can be evenly distributed inside the reaction tube; at the same time, by arranging multiple bulk material receiving modules in the reaction tube, the bulk material receiving modules continuously repeat the dispersion and collection of the quartz sand material, so that the quartz sand material is fully contacted with the reaction gas evenly distributed in the reaction tube. Without the need to rotate the reaction tube, the quartz sand material and the reaction gas are fully reacted in a high-temperature environment, thereby ensuring the purification effect of high-purity quartz sand. Therefore, the vertical quartz sand high-temperature gasification purification device provided by the present application effectively solves the technical problems of low reaction efficiency and large fluctuations in purification results in the prior art, and has the characteristics of simple structure, good purification effect and low cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a structural diagram of a vertical quartz sand high-temperature gasification and purification device in a specific embodiment of the present application.
[0019] Figure 2 This is a schematic diagram of the structure of the reaction tube in the specific embodiment of the present application.
[0020] Figure 3 yes Figure 2 A in the enlarged view,
[0021] Figure 4 This is a flow chart of the high-temperature gasification purification method of quartz sand in this application.
[0022] In the figure: 1. Frame, 2. Reactor, 21. Heating zone, 3. Reaction tube, 31. Bulk material receiving module, 311. Bulk feeder, 312. Funnel-shaped receiver, 32. Feed inlet, 33. Exhaust port, 34. Discharge port, 35. Air inlet, 4. Temperature sensor, 5. Waste gas collection system, 6. Flange, 7. Partition, 71. Discharge hole. DETAILED DESCRIPTION
[0023] To facilitate understanding of the structure and operation of the present invention, the following text provides a more comprehensive and detailed description of the present invention in conjunction with the accompanying drawings and optimized embodiments. However, the scope of protection of the present invention is not limited to the following specific embodiments. It should be noted that the structural features and component dimensions of the embodiments of the present invention may be modified, the connection methods may be replaced, and the device size may be changed without affecting the use effect.
[0024] Unless otherwise defined, all professional terms used hereinafter have the same meanings as those generally understood by those skilled in the art. The words "first", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are merely for the convenience of distinguishing the corresponding components. Similarly, words such as "one" or "an" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "connect" or "connected" are not limited to direct connections, but may be indirectly connected through other intermediate connectors. "Above", "below", "one side", "the other side", "vertical", "horizontal" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.
[0025] like Figure 1-Figure 3 As shown, a vertical quartz sand high-temperature gasification and purification device provided by the present invention includes a frame 1, a reactor 2 is vertically installed on the frame 1, and a plurality of heating zones 21 with increasing temperature are sequentially arranged in the reactor 2 from top to bottom, and a reaction tube 3 is vertically installed in the reactor 2, and the reaction tube 3 includes a plurality of bulk material receiving modules 31 connected in sequence, and the upper end of each bulk material receiving module 31 is provided with an umbrella-shaped bulk material distributor 311, and the lower end of each bulk material receiving module 31 is provided with a funnel-shaped receiver 312, the upper end of the reaction tube 3 passes through the reactor 2 and is connected to a feed port 32 and an exhaust port 33 at the end, and the lower end of the reaction tube 3 passes through the lower end of the reactor 2 and is connected to a discharge port 34 and an air inlet 35 at the end, wherein the temperature of the heating zone 21 in the reactor 2 is 800-1300°C.
[0026] In the above embodiment, the device vertically installs the reactor 2 and the reaction tube 3 on the frame 1, and the reaction gas chlorine or hydrogen chloride gas enters the reaction tube 3 from the air inlet 35 set at the lower end of the reaction tube 3, so that the reaction gas can be evenly distributed inside the reaction tube 3; at the same time, by setting multiple bulk material receiving modules 31 in the reaction tube 3, the umbrella-shaped bulk material 311 in the bulk material receiving module 31 disperses the quartz sand material, and the funnel-shaped receiver 312 collects the dispersed quartz sand material again, and then based on the bulk material receiving module 31, the dispersion and collection of the quartz sand material are continuously repeated. Under high temperature conditions, these quartz sand materials can fully contact and react with the reaction gas evenly distributed in the reaction tube 3, thereby effectively ensuring the purification effect of high-purity quartz sand. Therefore, the vertical quartz sand high-temperature gasification purification device provided by the present application can achieve full contact between the quartz sand material and the reaction gas without rotating the reaction tube 3, effectively solving the technical problems of low reaction efficiency and large fluctuations in purification results in the prior art, and has the characteristics of simple structure, good purification effect and low cost.
[0027] In the above embodiment, the temperature value of each heating zone 21 can be set to any value between 800-1300°C. For example, it can be selected as 800°C, 850°C, 900°C, 950°C, 1000°C, 1050°C, 1100°C, 1150°C, 1200°C, 1250°C, 1300°C, etc. It should be noted that in addition to meeting the condition of being between 800-1300°C, the temperature value setting of each heating zone 21 should also meet the condition that the temperature of the heating zone 21 increases successively from top to bottom.
[0028] In some embodiments, each of the heating zones 21 is connected to a plurality of groups of heating carbon rods (not shown in the figure), and each of the heating zones 21 is provided with a temperature sensing probe 4 .
[0029] In the above embodiment, four groups of heating carbon rods are connected to each heating zone 21, and a temperature sensing probe 4 is provided in each heating zone 21. The corresponding heating zone 21 is heated by the four groups of heating carbon rods, and the temperature value of the corresponding heating zone 21 is monitored in real time based on the temperature sensing probe 4. When the temperature of the heating zone 21 exceeds the preset temperature value, the temperature of the heating zone 21 is lowered by reducing the number of open heating carbon rods. When the temperature of the heating zone 21 is lower than the preset temperature value, the temperature of the heating zone 21 is increased by increasing the number of open heating carbon rods.
[0030] In some embodiments, the temperature difference between two adjacent heating zones 21 is 100-200°C.
[0031] In the above embodiment, by setting the temperature difference between two adjacent heating zones to 100-200°C, sufficient reaction of high-purity quartz sand can be further ensured. For example, the temperature difference between two adjacent heating zones can be selected to be 100°C, 120°C, 140°C, 160°C, 180°C, 200°C, etc.
[0032] It can be understood that when there are three heating zones 21 in the reactor 2 and the temperature value of the upper heating zone 21 is set to 800°C, the temperature value of the middle heating zone 21 can be set to 900-1000°C, and the temperature value of the lower heating zone 21 can be set to 1000-1200°C; similarly, when the temperature value of the upper heating zone 21 is set to 1000°C, the temperature value of the middle heating zone 21 can be set to 1100-1200°C. Since the upper temperature limit of the heating zone 21 is 1300°C, the temperature value of the lower heating zone 21 can only be set to any value between 1200-1300°C.
[0033] In some embodiments, the outer side of the reactor 2 corresponding to the heating zone 21 is covered with a thermal insulation interlayer (not shown in the figure).
[0034] In the above embodiment, the temperature interlayer should be understood as an interlayer that can adjust and control the temperature inside the corresponding heating zone 21, such as jacket water, insulation layer, etc. In this embodiment, the temperature interlayer selects jacket water, and by inputting cold medium or hot medium into the jacket water, the temperature of the corresponding heating zone 21 is adjusted and controlled.
[0035] In some embodiments, waste gas collection systems 5 are provided at both the upper and lower ends of the reaction tube 3 .
[0036] In the above embodiment, it should be understood that the waste gas collection system 5 provided at the upper end of the reaction tube 3 interfaces with the exhaust port 33 to collect waste gas discharged from the exhaust port 33, and the waste gas collection system 5 provided at the lower end of the reaction tube 3 interfaces with the discharge port 34 to collect waste gas overflowing from the discharge port 34. The waste gas collection system 5 provided at both the upper and lower ends of the reaction tube 3 prevents waste gas from the device from being directly discharged into the atmosphere and polluting the environment. It should be noted that the waste gas collection system 5 in this embodiment is prior art and will not be described in detail here.
[0037] In some embodiments, the lower end of the reaction tube 3 is fixedly connected to the frame 1 via a flange 6 .
[0038] In the above embodiment, the reaction tube 3 is fixed to the frame 1 via the flange 6 , thereby ensuring stable operation of the entire reaction process.
[0039] In some embodiments, a vibrating feeder (not shown) is further included, and a discharge end of the vibrating feeder is connected to the feed port 32 .
[0040] In the above embodiment, a vibrating feeder is provided to transport the quartz sand to the feed port 32 , thereby ensuring that the quartz sand can be uniformly transported into the reaction tube 3 , and further ensuring that the quartz sand in the reaction tube 3 can fully contact with the reaction gas.
[0041] In some embodiments, a partition 7 is provided between two adjacent bulk material receiving modules 31, and a discharge hole 71 is opened on the partition 7. The funnel-shaped material receiver 312 set at the lower end of the upper bulk material receiving module 31 is connected to the umbrella-shaped bulk material receiver 311 set at the upper end of the next bulk material receiving module 31 through the discharge hole 71.
[0042] In the above embodiment, the partition 7 is used to support the lower part of the funnel-shaped receiver 312, thereby ensuring the stability of the funnel-shaped receiver 312. At the same time, the funnel-shaped receiver 312 passes the collected quartz sand through the discharge hole 71 into the bulk hopper 311 for dispersion, thereby realizing the collection and dispersion of the quartz sand material.
[0043] In some embodiments, a cooling mechanism (not shown in the figure) is further included, which is connected to the discharge port 34 and is used to cool the high-purity quartz sand output from the discharge port 34.
[0044] In the above embodiment, by providing a cooling mechanism connected to the discharge port 34 , the high-purity quartz sand output from the reaction tube 3 can be effectively cooled, thereby further improving the purification efficiency of the high-purity quartz sand.
[0045] like Figure 4 As shown, the present application also provides a method for high-temperature gasification purification of quartz sand, which is based on the vertical quartz sand high-temperature gasification purification device described above to purify quartz sand, and specifically includes the following steps:
[0046] S100, controlling the temperature of each heating zone 21 in the reactor 2 to reach the corresponding temperature value and keeping it warm;
[0047] S200, hydrogen chloride gas or chlorine gas is transported from the lower end of the reactor 2 into the reactor 2 through the air inlet 35 and discharged from the exhaust port 33. At the same time, quartz sand is transported from the upper end of the reactor 2 into the reaction tube 3 through the feed port 32. Multiple bulk material receiving modules 31 are used to ensure that the quartz sand and hydrogen chloride gas or chlorine gas are fully contacted and reacted.
[0048] S300, collecting the high-purity quartz sand after sufficient reaction in the reaction tube 3 from the discharge port 34, thereby completing the purification operation of the high-purity quartz sand.
[0049] In the above embodiment, first, according to the preset parameter value, the temperature of each heating zone 21 in the reactor 2 is heated to the set temperature value by the corresponding heating carbon rod and kept warm; then, the reaction gas (hydrogen chloride gas or chlorine gas) is continuously introduced from the air inlet 35 set at the lower end of the reaction tube 3 to make the reaction gas fill the entire reaction tube 3, and at the same time, quartz sand is transported into the reaction tube 3 through the feed port 32 set at the upper end of the reaction tube 3. At this time, the multiple umbrella-shaped spreaders 311 and funnel-shaped receivers 312 set in the reaction tube 3 are used to make the quartz sand repeatedly disperse and collect during the falling process. Then, the quartz sand material in the falling process can fully contact with the reaction gas evenly distributed in the reaction tube 3, thereby achieving a full reaction between the quartz sand material and the reaction gas under high temperature conditions, and effectively ensuring the purification effect of high-purity quartz sand; finally, the high-purity quartz sand after sufficient reaction is transported to the outside of the reactor 2 through the discharge port set at the lower end of the reaction tube 3 for collection, completing the purification operation of high-purity quartz sand. Therefore, the purification method provided in the present application utilizes the reverse feeding of quartz sand and gas, as well as the continuous dispersion and collection operation of the quartz sand material based on the bulk material receiving module 31. Without the need to rotate the reaction tube 3, the quartz sand material can be fully contacted and reacted with the reaction gas, thereby ensuring the purification efficiency of high-purity quartz sand and realizing the continuous operation of the purification operation. At the same time, since the reaction tube 3 does not need to be rotated during the purification process, the electricity cost of driving the reaction tube 3 is saved, the service life of the reaction tube 3 is extended, and the production cost is further reduced.
[0050] The above describes in detail a vertical quartz sand high-temperature gasification and purification device and purification method provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the core concept of the present invention. It should be noted that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.
Claims
1. A vertical quartz sand high temperature gasification purification device, characterized in that: The invention comprises a frame (1), wherein a reactor (2) is vertically mounted on the frame (1), a plurality of heating zones (21) with increasing temperatures are sequentially arranged in the reactor (2) from top to bottom, and a reaction tube (3) is vertically mounted in the reactor (2), wherein the reaction tube (3) comprises a plurality of bulk material receiving modules (31) connected in sequence, wherein the upper end of each bulk material receiving module (31) is provided with an umbrella-shaped bulk material dispenser (311), and the lower end of each bulk material receiving module (31) is provided with a funnel-shaped material dispenser (312), wherein the upper end of the reaction tube (3) passes through the reactor (2) and is connected to a feed port (32) and an exhaust port (33), and the lower end of the reaction tube (3) passes through the lower end of the reactor (2) and is connected to a discharge port (34) and an air inlet (35), wherein the temperature of the heating zone (21) in the reactor (2) is 800-1300°C.
2. The vertical quartz sand high-temperature gasification purification device according to claim 1, characterized in that: Each heating zone (21) is connected to a plurality of groups of heating carbon rods, and each heating zone (21) is provided with a temperature sensing probe (4).
3. The vertical quartz sand high-temperature gasification purification device according to claim 1, characterized in that: The temperature difference between two adjacent heating zones (21) is 100-200°C.
4. The vertical quartz sand high-temperature gasification purification device according to claim 1, characterized in that: The outer side of the reactor (2) corresponding to the heating zone (21) is covered with a heat-insulating interlayer.
5. The vertical quartz sand high-temperature gasification purification device according to claim 1, characterized in that: The upper end and the lower end of the reaction tube (3) are both provided with a waste gas collection system (5).
6. The vertical quartz sand high-temperature gasification purification device according to claim 1, characterized in that: The lower end of the reaction tube (3) is fixedly connected to the frame (1) via a flange (6).
7. The vertical quartz sand high-temperature gasification purification device according to claim 1, characterized in that: It also includes a vibrating feeder, wherein the discharge end of the vibrating feeder is connected to the feed port (32).
8. The vertical quartz sand high-temperature gasification purification device according to claim 1, characterized in that: A partition (7) is provided between two adjacent bulk material receiving modules (31), and a discharge hole (71) is provided on the partition (7). A funnel-shaped receiver (312) provided at the lower end of the upper bulk material receiving module (31) and an umbrella-shaped bulk material receiver (311) provided at the upper end of the next bulk material receiving module (31) are connected through the discharge hole (71).
9. The vertical quartz sand high-temperature gasification purification device according to claim 1, characterized in that: It also includes a cooling mechanism, which is connected to the discharge port (34) and is used to cool the high-purity quartz sand output from the discharge port (34).
10. A method for purifying quartz sand by high-temperature gasification, characterized in that: The method is based on the vertical quartz sand high-temperature gasification purification device according to any one of claims 1 to 9 for purifying quartz sand, and specifically comprises the following steps: S100, controlling the temperature of each heating zone in the reactor (2) to reach a corresponding temperature value and keeping the temperature constant; S200, hydrogen chloride gas or chlorine gas is transported from the lower end of the reactor (2) into the reactor (2) through the air inlet (35) and discharged from the exhaust port (33), while quartz sand is transported from the upper end of the reactor (2) into the reaction tube (3) through the feed port (32), and multiple bulk material receiving modules (31) are used to ensure that the quartz sand and hydrogen chloride gas or chlorine gas are fully contacted and reacted; S300, collecting the high-purity quartz sand after sufficient reaction in the reaction tube (3) from the discharge port (34), thereby completing the purification operation of the high-purity quartz sand.