High-purity quartz sand drying equipment

Abstract

The utility model relates to the technical field of quartz sand drying, in particular to high-purity quartz sand drying equipment which comprises a drying tank, a stirring mechanism is arranged along the central axis, a heating layer covering the outer surface of the drying tank is arranged on the periphery of the drying tank, continuous heat is provided, the stability of the drying temperature is guaranteed, and heat transfer is even. And non-uniform drying of the quartz sand due to too high or too low temperature in the drying process is avoided. The feeding assembly comprises a plurality of feeding hoppers arranged side by side, and feeding is conducted along each feeding hopper, so that the flow of materials entering the drying tank is effectively controlled. Quartz sand is gradually and uniformly added into the drying tank, it is ensured that the quartz sand can be stirred and uniformly distributed once entering the drying tank, uneven drying caused by adding excessive materials at a time is avoided, and material accumulation or caking is avoided. And the dried quartz sand is rapidly discharged in a vacuum mode, and the drying efficiency of the quartz sand is improved through timely discharging. Partial or full automatic control is achieved, the heat transfer efficiency is high, and energy consumption is reduced.

Description

Technical Field

[0001] This utility model relates to the field of quartz sand drying technology, and in particular to a high-purity quartz sand drying device. Background Technology

[0002] High-purity quartz sand often retains a certain amount of moisture during the extraction process, especially natural quartz sand, which typically contains high humidity after collection. To ensure its stability and performance in precision processing or high-tech applications, drying is necessary. In high-tech fields such as electronics and semiconductors, the purity requirements for quartz sand are extremely high, and the drying process must avoid the introduction of any contaminants or impurities. Otherwise, moisture may affect the physical properties of the quartz sand, causing it to fail to meet standard requirements.

[0003] High-purity quartz sand is subject to very strict temperature requirements, especially during the drying process. Improper temperature control can alter the chemical composition of the quartz sand and even affect its purity. Existing equipment's temperature control systems often lack sufficient precision, particularly in high or low temperature environments, where temperature fluctuations can easily occur, leading to oxidation or overheating on the quartz sand surface. Unstable temperature control affects drying efficiency, can even reduce product quality, and impact subsequent processing steps.

[0004] Traditional hot air drying or radiant heating methods result in insufficient contact between the quartz sand and the heat source, leading to excessive accumulation and uneven drying. In mass production, this often results in high energy consumption and excessively long drying times. The inefficient drying process increases production costs and affects the continuity and stability of production. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a high-purity quartz sand drying device that uses a stirring mechanism directly opposite the feeding component to stir and tumble the quartz sand, thereby ensuring that the quartz sand comes into full contact with heat energy, and is dried evenly and efficiently before being quickly output.

[0006] The technical problem to be solved by this utility model is achieved through the following technical solution: a high-purity quartz sand drying equipment, including a horizontally arranged drying tank, a stirring mechanism along the central axis of the drying tank, a heating layer covering the outer surface of the drying tank, a feeding assembly above the drying tank, the feeding assembly including a plurality of feeding hoppers arranged side by side, each feeding hopper having a feeding port at its bottom end, the feeding port being connected to the drying tank, the feeding ports being arranged in a straight line, the feeding port being located directly above the stirring mechanism, and a discharge port at the bottom of the drying tank, the discharge port being connected to a vacuum discharge assembly.

[0007] Multiple feeding hoppers are distributed along the length of the mixing mechanism, with the feeding inlets positioned directly above the mixing mechanism. Feeding is performed through each hopper, effectively controlling the flow rate of material entering the drying tank. Quartz sand is gradually and evenly added to the drying tank, ensuring that the quartz sand is stirred and evenly distributed upon entering the tank. This avoids uneven drying caused by adding too much material at once, making the drying process more efficient and preventing material accumulation or clumping.

[0008] By setting a heating layer along the outer perimeter of the drying tank, continuous heat is provided, ensuring the stability of the drying temperature and uniform heat transfer. This avoids uneven drying of the quartz sand due to excessively high or low temperatures during the drying process, ensuring that the purity of the high-purity quartz sand is not affected.

[0009] The bottom discharge port connects to the vacuum discharge assembly, which helps to quickly discharge the dried quartz sand via vacuum, ensuring that the material is not contaminated due to pressure during the drying process. The timely and controllable discharge from the vacuum discharge assembly also improves the drying efficiency of the quartz sand, shortens the production cycle, and reduces energy consumption.

[0010] As the production process continues, partial or full automation control is achieved, resulting in high heat transfer efficiency and energy savings.

[0011] As a further embodiment of this invention, the inner wall of the bottom of the drying tank is provided with two conical collecting grooves. The upper edge of the conical collecting grooves smoothly transitions to the inner wall of the drying tank, and the smaller opening of the conical collecting grooves faces downwards and is connected to the discharge port. The conical collecting grooves naturally guide the material downwards and concentrate it, allowing the material to slide down with gravity, avoiding accumulation at the bottom of the drying tank. The material continues to flow throughout the drying process, improving drying efficiency.

[0012] As a further embodiment of this utility model, the stirring mechanism includes a stirring motor and a stirring shaft. The stirring motor is mounted on a cover on one side of the drying tank, and the cover has a mounting hole. The stirring motor shaft extends into the drying tank and is coaxial with the stirring shaft. A support bearing is provided at the end of the stirring shaft, and the support bearing is mounted on the cover on the other side of the drying tank. Spiral stirring blades are provided on the stirring shaft.

[0013] The spiral stirring blades on the stirring shaft efficiently and evenly stir the quartz sand. During the continuous tumbling process, the quartz sand is evenly heated and dried, improving the drying efficiency and quality of the material.

[0014] As a further embodiment of this invention, the upper part of the drying tank is provided with an exhaust assembly, which includes an exhaust pipe. A filter and an exhaust valve are sequentially arranged along the exhaust direction on the exhaust pipe. The filter prevents quartz sand and impurities from entering the exhaust pipe. Through precise adjustment of the exhaust valve and effective filtration by the filter, the exhaust pipe ensures unobstructed exhaust, thereby facilitating smooth airflow within the drying tank, improving airflow during the drying process, and contributing to increased material drying efficiency. During the exhaust process, quartz sand is prevented from flowing out along the exhaust pipe, avoiding excessive loss due to excessive outflow.

[0015] As a further embodiment of this invention, the vacuum discharge assembly includes two parallel discharge branches, each equipped with a branch discharge valve. Both branches are connected to the discharge port of the drying tank. A main discharge pipe is located at the bottom of each branch, connecting the branch branches to the main pipe. The main discharge pipe is equipped with a main discharge valve and a discharge vacuum pump. By using two parallel discharge branches for simultaneous or independent operation, the overall discharge efficiency is improved. Each branch can independently and precisely control the discharge rate, reducing bottlenecks in material discharge and ensuring smoother discharge, preventing blockages or malfunctions in any single pipe from affecting overall production.

[0016] If one branch pipe needs to be shut down for maintenance or adjustment, it will not affect the normal operation of the other branch pipe, reducing the risk of production interruption. The discharge vacuum pump can provide stable negative pressure, effectively attracting materials, reducing the risk of material scattering and leakage during the conveying process, and promoting the smooth discharge of materials from the drying tank.

[0017] As a further embodiment of this invention, the heating layer includes electric heaters evenly distributed along the outer surface of the drying tank. This uniform arrangement ensures the uniformity of the heating process, preventing localized overheating or uneven heating. The material inside the drying tank is then more evenly affected by heat, achieving optimal drying results and improving overall heating efficiency. The electric heaters are connected to an external power source via wires. Precise temperature control is achieved by adjusting the heating power according to the properties of the material inside the drying tank and the drying requirements, effectively saving energy. The heaters are positioned on the outer surface of the drying tank and precisely controlled by the power source, effectively preventing heat leakage and improving thermal efficiency. The heating layer maximizes the concentration of heat energy within the drying tank, reducing energy waste and improving thermal efficiency.

[0018] As a further embodiment of this utility model, the feeding hopper is configured as four hoppers, with two connected hoppers sharing a side wall.

[0019] As a further embodiment of this invention, the drying tank is provided with a fixed outer shell, and an insulation layer is filled between the fixed outer shell and the heating layer. The insulation layer is made of glass wool or ceramic fiber. Both glass wool and ceramic fiber are excellent heat insulation materials, effectively reducing heat conduction from the surface of the drying tank to the external environment. This reduces heat loss, maximizes the maintenance of the internal temperature of the drying tank, improves heating efficiency, and reduces energy consumption. The insulation layer prevents heat leakage and avoids excessively high external temperatures of the drying tank. When operators touch the equipment shell, they are less likely to encounter high temperatures, reducing the safety risk of burns from contact with hot surfaces.

[0020] As a further embodiment of this utility model, the fixed outer shell is provided with a support frame, which includes a base frame and a top frame. The base frame is provided with a support base plate, the fixed outer shell is set on the support base plate, and the feeding hopper is supported by the top frame.

[0021] The beneficial effects of this utility model are as follows: This utility model provides a high-purity quartz sand drying device, including a horizontally arranged drying tank. A stirring mechanism is provided along the central axis of the drying tank. A heating layer covers the outer surface of the drying tank. A feeding assembly is provided above the drying tank, comprising multiple feeding hoppers arranged side-by-side, distributed along the length of the stirring mechanism, with the feeding port positioned directly above the stirring mechanism. Feeding is performed through each feeding hopper, effectively controlling the flow rate of material entering the drying tank. The quartz sand is gradually and evenly added to the drying tank, ensuring that the quartz sand is stirred and evenly distributed upon entering the drying tank. This avoids uneven drying caused by adding too much material at once, making the drying process more efficient and preventing material accumulation or clumping.

[0022] By setting a heating layer along the outer perimeter of the drying tank, continuous heat is provided, ensuring the stability of the drying temperature and uniform heat transfer. This avoids uneven drying of the quartz sand due to excessively high or low temperatures during the drying process, ensuring that the purity of the high-purity quartz sand is not affected.

[0023] The bottom discharge port connects to the vacuum discharge assembly, facilitating the rapid removal of dried quartz sand via vacuum, ensuring that the material is not contaminated due to pressure during the drying process. The timely and controllable discharge from the vacuum assembly also improves the drying efficiency of the quartz sand, shortens the production cycle, and reduces energy consumption. As the production process continues, partial or full automation is achieved, resulting in high heat transfer efficiency and energy savings.

[0024] The bottom inner wall of the drying tank is designed with two conical collection troughs, which naturally guide the material downwards and concentrates it. The material slides down with gravity, avoiding accumulation at the bottom of the drying tank. The material flows continuously throughout the drying process, improving drying efficiency.

[0025] The mixing mechanism includes a mixing motor and a mixing shaft. The spiral mixing blades on the mixing shaft efficiently and evenly mix the quartz sand. During the continuous tumbling process, the quartz sand is evenly heated and dried, improving the drying efficiency and quality of the material.

[0026] The exhaust assembly is equipped with a filter to prevent quartz sand and impurities from entering the exhaust pipe. Through precise adjustment of the exhaust valve and effective filtration, the exhaust pipe ensures unobstructed exhaust flow, facilitating smooth airflow within the drying tank, improving air circulation during the drying process, and ultimately enhancing material drying efficiency. During the exhaust process, quartz sand is prevented from flowing out along the exhaust pipe, avoiding excessive loss due to excessive outflow.

[0027] The vacuum discharge assembly uses two parallel discharge pipes to discharge material simultaneously or independently, improving overall discharge efficiency. Each pipe allows for independent and precise control of the discharge rate, reducing bottlenecks in material discharge and ensuring smoother discharge without affecting overall production due to blockage or malfunction of a single pipe.

[0028] The heating layer includes electric heaters evenly distributed along the outer surface of the drying tank. This uniform arrangement ensures consistent heating, preventing localized overheating or uneven heating. The material inside the drying tank is then more evenly heated, achieving optimal drying results and improving overall heating efficiency. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0030] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0031] Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure 3 ;

[0032] Figure 4 This is a schematic diagram of the sweeper body structure of this utility model.

[0033] The components are: 1-support frame, 101-support base plate, 102-top frame, 2-fixed outer shell, 3-stirring mechanism, 301-stirring motor, 302-stirring shaft, 303-spiral stirring blade, 304-support bearing, 4-insulation layer, 5-heating layer, 501-electric heater, 6-drying tank, 601-mounting hole, 602-discharge port, 603-conical collection trough, 7-feeding assembly, 701-feeding hopper, 711-feeding port, 8-exhaust pipe, 801-filter, 802-exhaust valve, 9-vacuum discharge assembly, 901-discharge branch pipe, 911-branch discharge valve, 902-discharge main pipe, 903-main discharge valve, 904-discharge vacuum pump. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0035] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] like Figures 1 to 4As shown, a high-purity quartz sand drying device includes a horizontally arranged drying tank 6. A support frame 1 is provided outside the fixed outer shell 2. The support frame includes a base frame and a top frame 102. A supporting base plate is provided on the base frame, and the fixed outer shell is mounted on the supporting base plate 101. A feeding assembly 7 is provided above the drying tank. The feeding assembly includes several feeding hoppers 701 arranged side-by-side. There are four feeding hoppers, with two connected hoppers sharing a side wall. The feeding hoppers are supported by the top frame. Each feeding hopper has a feeding port 711 at its bottom, which communicates with the drying tank. The feeding ports are arranged in a straight line.

[0038] The drying tank is equipped with a stirring mechanism 3 along its central axis. The feeding port is located directly above the stirring mechanism. During operation, four feeding hoppers are distributed along the length of the stirring mechanism, with the feeding ports positioned directly above it. Depending on site requirements, feeding is performed through several or all of the feeding hoppers 701. Feeding is carried out according to a preset flow rate, gradually and evenly adding quartz sand into the drying tank. The quartz sand is stirred and evenly distributed upon entering the drying tank. The material is added dispersedly, and the stirring mechanism continuously disperses it, preventing accumulation or clumping.

[0039] The stirring mechanism 3 includes a stirring motor 301 and a stirring shaft 302. The stirring motor 301 is mounted on a cover on one side of the drying tank. The cover has a mounting hole 601. The stirring motor shaft extends into the drying tank. The stirring motor shaft and the stirring shaft 302 are coaxially arranged. The end of the stirring shaft is provided with a support bearing 304. The support bearing is mounted on the cover on the other side of the drying tank. The stirring shaft 302 is provided with spiral stirring blades 303.

[0040] When stirring begins, the stirring motor 301 is started, which drives the stirring shaft 302 to rotate the spiral stirring blades 303 synchronously. The spiral stirring blades efficiently and evenly stir the quartz sand, and the quartz sand is evenly heated and dried during the continuous tumbling process.

[0041] A heating layer 5 is provided around the outer periphery of the drying tank, covering its outer surface. This heating layer includes electric heaters 501 evenly distributed along the outer surface of the drying tank. The uniform arrangement of the electric heaters along the outer surface ensures the uniformity of the heating process, preventing localized overheating or uneven heating, and allowing the material inside the drying tank to be dried more evenly.

[0042] The electric heater 501 is connected to an external power source via wires. It adjusts the heating power by regulating the temperature according to the properties of the material inside the drying tank and the drying requirements, thus achieving precise temperature control. The heating layer concentrates heat energy to the maximum extent within the drying tank for heating and drying the quartz sand.

[0043] The drying tank has a discharge port 602 at the bottom, and two conical collection troughs 603 are provided on the inner wall of the bottom of the drying tank. The upper edge of the conical collection troughs is smoothly connected to the inner wall of the drying tank, and the smaller opening of the conical collection troughs faces downward and is connected to the discharge port. The conical collection troughs naturally guide the material downward and concentrate it. The material slides down with gravity and flows out along the discharge port.

[0044] A vacuum discharge assembly 9 is connected to the discharge port. The vacuum discharge assembly includes two parallel discharge branches 901, each with a branch discharge valve 911. The discharge branches are connected to the discharge port of the drying tank. A main discharge pipe 902 is located at the bottom of the discharge branches, and the discharge branches are connected to the main discharge pipe. The main discharge pipe is equipped with a main discharge valve 903 and a discharge vacuum pump 904.

[0045] During use, when all the dried quartz sand needs to be discharged, open the discharge vacuum pump 904, the main discharge valve 903 and the branch discharge valve 911, and discharge the material simultaneously through two parallel discharge pipes.

[0046] Each branch pipe can independently and precisely control the discharge rate, reducing bottlenecks in material discharge and making the discharge process smoother.

[0047] If one of the branch pipes needs to be shut down for maintenance or adjustment, the branch discharge valve 911 on the branch pipe that needs to be shut down for maintenance or adjustment will be closed, and the branch discharge valve on the other branch pipe that needs to discharge will be opened. At the same time, the main discharge valve 903 and the discharge vacuum pump 904 will be opened to allow normal discharge.

[0048] The discharge vacuum pump 904 can provide stable negative pressure, effectively attracting materials, reducing the risk of material scattering and leakage during the conveying process, and promoting the smooth discharge of materials from the drying tank.

[0049] The upper part of the drying tank is provided with an exhaust assembly, which includes an exhaust pipe 8. A filter 801 and an exhaust valve 802 are sequentially arranged on the exhaust pipe along the exhaust direction.

[0050] During the drying process of quartz sand, a large amount of hot airflow is generated, which needs to be discharged in a timely manner. The filter 801 and exhaust valve 802 are opened. The filter filters the quartz sand in the airflow and directs it into the exhaust pipe 8. The exhaust rate is adjusted by the exhaust valve 802. The exhaust pipe 8 ensures unobstructed exhaust, accelerates the airflow within the drying tank, and rapidly dries the quartz sand.

[0051] The drying tank is equipped with a fixed outer shell, and an insulation layer 4 is filled between the fixed outer shell and the heating layer. The insulation layer is made of glass wool or ceramic fiber. The glass wool and ceramic fiber effectively isolate the internal environment of the drying tank from the external environment, reducing the conduction of heat from the surface of the drying tank to the external environment. This maximizes the maintenance of the internal heating temperature of the drying tank, allowing the quartz sand to be continuously heated and dried.

[0052] The insulation layer's heat insulation effect makes it less likely for operators to encounter high temperatures when touching the equipment casing, reducing the safety risk of burns from contact with hot surfaces.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A high-purity quartz sand drying device, characterized in that, The equipment includes a horizontally arranged drying tank (6), a stirring mechanism (3) along the central axis of the drying tank, a heating layer (5) covering the outer surface of the drying tank, a feeding assembly (7) above the drying tank, the feeding assembly including several feeding hoppers (701) arranged side by side, each feeding hopper having a feeding port (711) at the bottom, the feeding port being connected to the drying tank, the feeding ports being arranged in a straight line, the feeding port being located directly above the stirring mechanism, and a discharge port (602) at the bottom of the drying tank, the discharge port being connected to a vacuum discharge assembly (9).

2. The high-purity quartz sand drying equipment according to claim 1, characterized in that, The bottom inner wall of the drying tank (6) is provided with two conical collection grooves (603). The upper edge of the conical collection groove is smoothly connected to the inner wall of the drying tank. The small opening of the conical collection groove faces downward and is connected to the discharge port.

3. The high-purity quartz sand drying equipment according to claim 1, characterized in that, The stirring mechanism includes a stirring motor (301) and a stirring shaft (302). The stirring motor is installed on a cover on one side of the drying tank. The cover has a mounting hole (601). The stirring motor shaft extends into the drying tank. The stirring motor shaft and the stirring shaft (302) are coaxially arranged. The end of the stirring shaft is provided with a support bearing. The support bearing is installed on the cover on the other side of the drying tank. The stirring shaft (302) is provided with spiral stirring blades (303).

4. The high-purity quartz sand drying equipment according to claim 2, characterized in that, The upper part of the drying tank (6) is provided with an exhaust assembly, which includes an exhaust pipe (8). A filter (801) and an exhaust valve (802) are arranged sequentially along the exhaust direction.

5. The high-purity quartz sand drying equipment according to claim 1, characterized in that, The vacuum discharge assembly (9) includes two parallel discharge branches (901), each of which is equipped with a branch discharge valve (911). The discharge branches are connected to the discharge port of the drying tank. A discharge main pipe (902) is provided at the bottom of the discharge branches. The discharge branches are connected to the discharge main pipe. A main discharge valve (903) and a discharge vacuum pump (904) are provided on the discharge main pipe.

6. The high-purity quartz sand drying equipment according to claim 1, characterized in that, The heating layer (5) includes electric heaters (501) evenly distributed along the outer surface of the drying tank, and the electric heaters are connected to an external power source via wires.

7. The high-purity quartz sand drying equipment according to claim 1, characterized in that, The feeding hopper (701) is configured as 4, with two connected hoppers sharing a side wall.

8. The high-purity quartz sand drying equipment according to claim 7, characterized in that, The drying tank is provided with a fixed outer shell (2), and a heat insulation layer (4) is filled between the fixed outer shell and the heating layer. The heat insulation layer is made of glass wool or ceramic fiber.

9. The high-purity quartz sand drying equipment according to claim 8, characterized in that, The fixed outer shell is provided with a support frame (1), which includes a base frame and a top frame (102). The base frame is provided with a support base plate (101), the fixed outer shell is set on the support base plate, and the feeding hopper is supported by the top frame.

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