High-purity quartz sand high-efficiency equipment combining thermal excitation and acid mist erosion

Abstract

The utility model discloses a kind of high-purity quartz sand high-efficiency equipment combined with thermal excitation and acid mist erosion, and it relates to quartz sand purification technical field.The utility model includes motor one, kettle body, delivery pump, net cylinder and ring pipe two, the net cylinder is suspended in kettle body interior, the kettle body lower end inner wall is provided with filter funnel, the kettle body outer wall is sleeved with mounting bracket, the mounting bracket upper end is provided with delivery pump, the delivery pump output is provided with conveying pipe one, the kettle body interior is provided with the ring pipe one intercommunication with conveying pipe one, the ring pipe one inner wall is provided with the atomizing nozzle that is annular array distribution, the kettle body inner wall is provided with heating ring, the kettle body one end interior is provided with temperature sensor.The utility model is by setting thermal excitation and acidic liquid recycling structure, to solve the problem that acid mist use amount is too big, medicament cost is high, subsequent processing load is heavy, and production cost is high.

Description

Technical Field

[0001] This utility model relates to the field of quartz sand purification technology, and in particular to a high-efficiency device for high-purity quartz sand that combines thermal activation and acid mist erosion. Background Technology

[0002] Acid mist erosion is a core step in the chemical purification of high-purity quartz sand. Its core function is to selectively remove impurity minerals from quartz sand through the chemical dissolution effect of acidic mists such as hydrofluoric acid and hydrochloric acid. Hydrofluoric acid can react with aluminosilicates such as feldspar and mica, destroying their crystal structure and converting them into soluble substances. Hydrochloric acid can dissolve iron oxides, aluminum oxides, etc. Combined with the penetrating effect of acid mist, it can remove trace metal impurities coated on the surface and pores of quartz particles. The atomized acid mist particles can uniformly coat quartz sand particles, avoiding the problems of over-corrosion or insufficient dissolution caused by uneven local concentration in traditional liquid acid leaching, and ensuring a stable impurity removal rate.

[0003] Acid mist treatment takes several hours, and the reaction process of quartz sand consumes a large amount of acid mist. The consumption of reagents such as hydrofluoric acid and hydrochloric acid in acid mist treatment is directly proportional to the amount of quartz sand treated. When the amount of acid mist used is too large, the cost of reagents is high. Excess acid mist enters the washing stage before fully reacting, leading to increased washing water consumption, increased load on subsequent treatments, and significantly higher production costs. In particular, hydrofluoric acid is a highly hazardous chemical with high procurement and transportation costs, and excessive use will further exacerbate the economic burden. Therefore, those skilled in the art have provided a high-purity quartz sand high-efficiency equipment that combines thermal activation and acid mist erosion to solve the problems mentioned in the background art. Utility Model Content

[0004] 1. Technical Solution

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a high-efficiency device for high-purity quartz sand combining thermal excitation and acid mist erosion. It includes a motor, a vessel body, a delivery pump, a mesh cylinder, and a ring pipe. The mesh cylinder is suspended inside the vessel body. A filter bucket is installed on the inner wall of the lower end of the vessel body. A mounting frame is fitted onto the outer wall of the vessel body. A delivery pump is installed on the upper end of the mounting frame. A delivery pipe is installed at the output end of the delivery pump. A ring pipe, connected to the delivery pipe, is installed inside the vessel body. Atomizing nozzles arranged in a ring array are installed on the inner wall of the ring pipe. A heating ring is installed on the inner wall of the vessel body. A temperature sensor is installed inside one end of the vessel body.

[0007] Furthermore, both ends of the mesh cylinder are provided with mounting shafts that are rotatably installed inside the vessel body, and one end of the vessel body is provided with a motor whose output end is connected to the mounting shaft;

[0008] Specifically, the motor drives the rotating shaft to rotate, which in turn rotates the mesh cylinder, causing the quartz sand inside the mesh cylinder to tumble and flow.

[0009] Furthermore, a discharge pipe penetrating the vessel body is provided at the lower end of the filter hopper, and a control valve is provided inside the discharge pipe;

[0010] Specifically, the particles intercepted inside the filter bucket, as well as the quartz sand collected through the mesh cylinder, can be discharged through the discharge pipe, and the opening and closing of the discharge pipe is controlled by the control valve.

[0011] Furthermore, a feed pipe is provided at the upper end of the mesh cylinder, and a control valve is provided inside the feed pipe;

[0012] Specifically, after the top cover is opened, quartz sand is fed into the inside of the mesh cylinder through the upward-facing feed pipe, and the opening and closing of the feed pipe is controlled by the control valve.

[0013] Furthermore, the pump is provided with a suction pipe that penetrates the lower end of the vessel body at the suction end, and a filter head is provided at the opening of the suction pipe.

[0014] Specifically, the delivery pump draws acid from the lower end of the vessel body, and the filter head compensates for the problem of particles entering the acid extraction space due to accidental damage to the filter bucket.

[0015] Furthermore, a second ring tube is sleeved on the outer side of the lower end of the filter bucket, and a cleaning tube arranged in a ring array is provided on the outer wall of the second ring tube. The cleaning tube is provided with nozzles that are evenly distributed on the inner wall. A water pump is provided inside the mounting frame, and a second delivery pipe that penetrates the second ring tube is provided at the output end of the water pump.

[0016] Specifically, the water pump draws in the cleaning liquid, which enters the second ring pipe through the second delivery pipe, and is then diverted through the cleaning pipe. The cleaning liquid is then sprayed evenly onto the outer wall of the filter bucket through the nozzle.

[0017] Furthermore, a top cover is provided at the upper end of the vessel body, a second motor and a bearing seat are provided at one end of the vessel body, a rotating shaft is provided at the output end of the second motor and is rotatably installed inside the bearing seat, and a connecting block connected to the top cover is provided on the outer wall of the rotating shaft.

[0018] Specifically, the second motor drives the rotating shaft to rotate. The rotating shaft rotates through the bearing seat. When the rotating shaft rotates, it drives the top cover to flip through the connecting block, thereby controlling the opening and closing of the upper part of the vessel.

[0019] 2. Beneficial effects

[0020] Compared with existing technologies, the advantages of this utility model are:

[0021] This invention selectively uses hydrofluoric acid and hydrochloric acid to feed into the lower part of the reactor body, and quartz sand is fed into the mesh cylinder. The feed pipe is closed, and the rotating shaft of the motor drives the mesh cylinder to rotate. The quartz sand tumbles and flows inside the mesh cylinder. The acidic liquid is output through the atomizing nozzle of the ring-shaped dust and sprayed evenly on the outer wall of the quartz sand through the pores of the mesh cylinder. With the help of the heating ring, the acidic liquid is heated. The high temperature causes the pores on the surface of the quartz sand particles to expand, making it easier for the acid mist to enter the particles. The high temperature increases the movement rate of the acid mist molecules and reduces the activation energy of the reaction with impurities. The dissolution efficiency of impurities such as feldspar and iron oxides is improved compared with room temperature. The high temperature environment can reduce the adsorption probability of dissolved impurity ions on the quartz surface, reduce secondary pollution, and reduce the amount of impurities remaining after washing. Combined with thermal activation, the purification effect of acid mist treatment on quartz sand is improved.

[0022] Meanwhile, as the acid mist drips downwards after use, it is sieved through a filter bucket. The acid-resistant filter bucket intercepts unreacted small droplets of acid and impurity particles in the acid mist. The interception effect of the filter bucket avoids the loss of acid mist from direct emission. The hydrofluoric acid concentration in the recovered liquid can be recycled. The filter screen recovery reduces the amount of acid mist emission, while reducing the use of acidic liquid and subsequent treatment costs, thereby reducing production costs.

[0023] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a front-view three-dimensional structural diagram of the internal structure of the vessel body of this utility model;

[0027] Figure 3 This is a top-view three-dimensional structural diagram of the internal structure of the vessel body of this utility model;

[0028] Figure 4 This is a front-view three-dimensional structural diagram of the filter bucket of this utility model;

[0029] Figure 5 For the present utility model Figure 1 Schematic diagram of the main view of the three-dimensional structure of the CM2 motor.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Top cover; 2. Motor 1; 3. Kettle body; 4. Water pump; 5. Mounting bracket; 6. Conveying pump; 7. Conveying pipe 1; 8. Ring pipe 1; 9. Atomizing nozzle; 10. Feed pipe; 11. Mesh cylinder; 12. Connecting block; 13. Filter hopper; 14. Ring pipe 2; 15. Rotating shaft; 16. Mounting shaft; 17. Cleaning pipe; 18. Suction pipe; 19. Filter head; 20. Discharge pipe; 21. Conveying pipe 2; 22. Control valve; 23. Nozzle; 24. Motor 2; 25. Bearing seat; 26. Heating ring; 27. Temperature sensor. Detailed Implementation

[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0033] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0036] Example 1

[0037] Please see Figure 1-5 As shown, this embodiment is a high-efficiency device for high-purity quartz sand that combines thermal excitation and acid mist erosion. It includes a motor 2, a vessel 3, a delivery pump 6, a mesh cylinder 11, and a ring pipe 14. The mesh cylinder 11 is suspended inside the vessel 3. A filter hopper 13 is provided on the inner wall of the lower end of the vessel 3. A mounting frame 5 is sleeved on the outer wall of the vessel 3. The delivery pump 6 is provided on the upper end of the mounting frame 5. A delivery pipe 7 is provided at the output end of the delivery pump 6. A ring pipe 8 is provided inside the vessel 3 and communicates with the delivery pipe 7. Atomizing nozzles 9 are arranged in a ring array on the inner wall of the ring pipe 8. A heating ring 26 is provided on the inner wall of the vessel 3. A temperature sensor 27 is provided inside one end of the vessel 3.

[0038] Both ends of the mesh cylinder 11 are provided with mounting shafts 16 that are rotatably installed inside the vessel body 3, and one end of the vessel body 3 is provided with a motor 2 whose output end is connected to the mounting shafts 16;

[0039] The lower end of the filter hopper 13 is provided with a discharge pipe 20 that penetrates the vessel body 3, and a control valve 22 is provided inside the discharge pipe 20;

[0040] A feed pipe 10 is provided at the upper end of the mesh cylinder 11, and a control valve 22 is provided inside the feed pipe 10;

[0041] The suction end of the delivery pump 6 is provided with a suction pipe 18 that penetrates the lower end of the vessel body 3, and a filter head 19 is provided at the opening of the suction pipe 18.

[0042] A ring tube 14 is sleeved on the outer side of the lower end of the filter hopper 13. A cleaning tube 17 is arranged in a ring array on the outer wall of the ring tube 14. A nozzle 23 is arranged at equal intervals on the inner wall of the cleaning tube 17. A water pump 4 is installed inside the mounting frame 5. A delivery tube 21 that passes through the ring tube 14 is installed at the output end of the water pump 4.

[0043] The upper end of the vessel body 3 is provided with a top cover 1, and one end of the vessel body 3 is provided with a motor 24 and a bearing seat 25. The output end of the motor 24 is provided with a rotating shaft 15 rotatably installed inside the bearing seat 25, and the outer wall of the rotating shaft 15 is provided with a connecting block 12 that connects to the top cover 1.

[0044] In this embodiment, the mesh cylinder 11 adopts a hollow mesh design with a hole diameter of 2mm. Driven by motor 2, it rotates at a speed of 8-12r / min, causing the 50-200 mesh quartz sand inside to tumble, avoiding the accumulation of particles and the formation of acid mist contact blind zone. The mounting shaft 16 is connected to the vessel body 3 through a double row angular contact bearing, reducing the impact of radial runout and ensuring that the mesh cylinder 11 rotates smoothly and the particles are subjected to uniform force. Compared with a fixed container, the rotating mesh cylinder 11 increases the contact area between the quartz sand and the acid mist. The mesh structure has both permeability and interception functions, which can prevent the leakage of quartz sand particles, while allowing the acid mist to penetrate freely.

[0045] The mesh cylinder 11 is made of Hastelloy, which has excellent resistance to hydrofluoric acid corrosion. The mounting shaft 16 is made of 316L stainless steel with a nitrided surface. The annular tube 8 surrounds the outside of the mesh cylinder 11 with a diameter of φ500mm. A mixture of 5-10% hydrofluoric acid and 10-15% hydrochloric acid is pressurized to 0.4MPa by the delivery pump 6 and converted into 5-10μm acid mist through a 0.3mm orifice nozzle 9, which is then sprayed in a ring. The heating ring 26 is embedded in the inner wall of the vessel body 3 to stably control the temperature inside the vessel at 80-120℃, with real-time feedback and adjustment by the temperature sensor 27. The ring-shaped atomizing nozzles 9 increase the acid mist coverage density and, in coordination with the rotating mesh cylinder 11, improve the acid mist utilization rate. The ring tube 8 and the atomizing nozzles 9 are made of polytetrafluoroethylene, which is resistant to high temperature of 150℃ and strong corrosion. The heating ring 26 is made of nickel-chromium alloy heating wire with a quartz tube outer sheath, which has high heat conversion efficiency. The filter funnel 13 has a pore diameter of 0.1μm and is inverted conical in shape. It is installed inside the lower end of the vessel body 3 and can intercept unreacted acid droplets and silica gel impurities in the acid mist. The ring tube 14 sprays deionized water onto the outer wall of the filter funnel 13 through the cleaning tube 17 to prevent the filter holes from clogging.

[0046] The interception effect of filter hopper 13 improves the acid recycling rate and reduces the consumption of quartz sand reagent. The inverted cone design accelerates the collection of recovered liquid. After the acid is discharged, the quartz sand inside the screen cylinder 11 is output downward through the feed pipe opening and transported to the outside through the discharge pipe 20. In conjunction with the pneumatic valve of the discharge pipe 20, a pH sensor needs to be installed inside the vessel body 3 to provide feedback when the acid liquid is insufficient and to replenish the acid. The new acid liquid is mixed with the diluted acid liquid to ensure the purification of quartz sand acid mist. Filter hopper 13 is made of porous ceramic material, which is resistant to acid corrosion and has high filtration accuracy. Stable, the cleaning pipe 17 and nozzle 23 are made of PPH material, the top cover 1 adopts a double-layer structure with an inner PTFE layer and an outer Q235 steel layer. When closed, the silicone sealing ring achieves zero acid mist leakage. The motor 24 drives the rotating shaft 15 to rotate the top cover 1, with an opening and closing angle of 0-180°. It works with the feed pipe 10 to load quartz sand. The control valve 22 of the feed pipe 10 is a solenoid valve, which is linked to the rotation speed of the mesh cylinder 11. The sealing ring is made of fluororubber, which is resistant to acid mist corrosion. The rotating shaft 15 is made of 45 steel with heat treatment, which is resistant to bending and ensures that the top cover 1 rotates smoothly.

[0047] This equipment achieves high-efficiency purification through a synergistic mechanism of enhanced acid mist activity through thermal activation, improved reaction efficiency through dynamic contact, and reduced consumption through closed-loop recovery. Motor 24 drives the top cover 1 to flip open, allowing pre-treated quartz sand to enter the mesh cylinder 11 through the feed pipe 10. After closing the top cover 1, motor 2 drives the mesh cylinder 11 to rotate, ensuring uniform particle distribution. Pump 6 pressurizes and delivers a mixture of hydrofluoric acid and hydrochloric acid to the ring pipe 8, where it is atomized into 5-10 μm acid mist by the atomizing nozzle 9 and sprayed annularly onto the surface of the mesh cylinder 11. The acid mist penetrates the mesh and contacts the quartz sand. Heating ring 26 raises the temperature inside the reactor to 80-120℃. This high temperature causes the pores of the quartz sand to expand and enhances the activity of the acid mist molecules, accelerating the dissolution of impurities such as feldspar and iron oxides. During the reaction, the rotating screen cylinder 11 causes the particles to tumble, preventing accumulation and ensuring that each particle can fully react with the acid mist. The mixture formed after the acid mist is used drips downwards and is intercepted by impurity particles in the filter hopper 13. The recovered acid is returned to the storage tank for recycling through the discharge pipe 20. At the same time, the water pump 4 periodically sprays cleaning liquid onto the filter hopper 13 through the ring pipe 14 to prevent the filter holes from clogging. After the reaction is completed, the screen cylinder 11 stops rotating, and the quartz sand falls through the mesh into the top of the filter hopper 13 and is discharged through the discharge pipe 20 to enter the subsequent water washing process. The entire process is controlled by the linkage between the temperature sensor 27, pH sensor and other detection equipment and the power equipment and PLC system, which, together with the efficient utilization of acid, reduces production costs and improves purification effect.

[0048] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-efficiency equipment for high-purity quartz sand combining thermal activation and acid mist erosion, characterized in that: The device includes a motor (2), a vessel body (3), a delivery pump (6), a mesh cylinder (11), and a ring pipe (14). The mesh cylinder (11) is suspended inside the vessel body (3). A filter hopper (13) is provided on the inner wall of the lower end of the vessel body (3). A mounting frame (5) is fitted on the outer wall of the vessel body (3). A delivery pump (6) is provided on the upper end of the mounting frame (5). A delivery pipe (7) is provided at the output end of the delivery pump (6). A ring pipe (8) connected to the delivery pipe (7) is provided inside the vessel body (3). Atomizing nozzles (9) arranged in a ring array are provided on the inner wall of the ring pipe (8). A heating ring (26) is provided on the inner wall of the vessel body (3). A temperature sensor (27) is provided inside one end of the vessel body (3).

2. The high-efficiency equipment for high-purity quartz sand combining thermal activation and acid mist erosion as described in claim 1, characterized in that: Both ends of the mesh cylinder (11) are provided with mounting shafts (16) that are rotatably installed inside the vessel body (3), and one end of the vessel body (3) is provided with a motor (2) whose output end is connected to the mounting shaft (16).

3. The high-efficiency equipment for high-purity quartz sand combining thermal activation and acid mist erosion as described in claim 1, characterized in that: The filter hopper (13) is provided with a discharge pipe (20) that penetrates the vessel body (3) at its lower end, and a control valve (22) is provided inside the discharge pipe (20).

4. The high-efficiency equipment for high-purity quartz sand combining thermal activation and acid mist erosion as described in claim 1, characterized in that: The upper end of the mesh cylinder (11) is provided with a feed pipe (10), and a control valve (22) is provided inside the feed pipe (10).

5. The high-efficiency equipment for high-purity quartz sand combining thermal activation and acid mist erosion according to claim 1, characterized in that: The pump (6) is provided with a suction pipe (18) that penetrates the lower end of the vessel body (3) at the suction end, and a filter head (19) is provided at the opening of the suction pipe (18).

6. The high-efficiency equipment for high-purity quartz sand combining thermal activation and acid mist erosion according to claim 1, characterized in that: The filter bucket (13) is fitted with a ring tube (14) on the outer side of its lower end. The outer wall of the ring tube (14) is provided with cleaning tubes (17) arranged in a ring array. The inner wall of the cleaning tubes (17) is provided with nozzles (23) arranged at equal intervals. The mounting frame (5) is provided with a water pump (4). The output end of the water pump (4) is provided with a delivery tube (21) that passes through the ring tube (14).

7. The high-efficiency equipment for high-purity quartz sand combining thermal activation and acid mist erosion according to claim 1, characterized in that: The upper end of the vessel body (3) is provided with a top cover (1), and one end of the vessel body (3) is provided with a motor (24) and a bearing seat (25). The output end of the motor (24) is provided with a rotating shaft (15) rotatably installed inside the bearing seat (25). The outer wall of the rotating shaft (15) is provided with a connecting block (12) connected to the top cover (1).

Images