Calcination processing equipment for purifying quartz sand

Abstract

The calcination processing equipment comprises a base and a calcination bin fixedly arranged at the upper end of the base, a plurality of high-frequency electric heating tubes are fixedly arranged in the calcination bin, the upper end of the calcination bin is communicated with a storage hopper, the lower end of the calcination bin is provided with a discharge port, and a material turning roller is rotationally arranged in the calcination bin and close to the bottom face. A material receiving box is fixedly arranged on the upper end face of the base, a heat exchange mechanism is fixedly arranged in the material receiving box, a heating coating is fixedly arranged outside the material storage hopper, and the heat exchange mechanism and the heating coating are communicated in a circulating mode through a circulating liquid pump. Quartz sand is continuously turned and raised in the calcining process, accumulation of the quartz sand is effectively avoided, uniform heating is ensured, a heat exchange mechanism and a heating coating are arranged and communicated through a circulating liquid pump to form a circulating system, and a heat exchange medium flows into the heating coating after being heated to preheat the quartz sand in a storage hopper.

Description

Technical Field

[0001] This utility model relates to the technical field of quartz sand calcination equipment, specifically to a calcination processing equipment for purifying quartz sand. Background Technology

[0002] Quartz sand is an important industrial raw material with wide applications in many fields. In the processing of quartz sand, calcination is a key step in removing fluid impurities.

[0003] Traditional quartz sand calcination equipment typically consists of a heating chamber and a material conveying device. During operation, the quartz sand is directly fed into the heating chamber for calcination. However, this traditional calcination equipment has several drawbacks. Firstly, the quartz sand tends to accumulate within the calcination chamber, leading to uneven heating. The accumulated quartz sand may not fully contact the heat source, while the sand closer to the heat source may be overheated, affecting its quality and resulting in inconsistent final product quality. Secondly, the high-temperature calcined quartz sand is directly discharged, and the large amount of heat it carries is not recovered, resulting in energy waste. Therefore, it is necessary to develop a new type of quartz sand calcination processing equipment to overcome the aforementioned shortcomings of traditional equipment. Utility Model Content

[0004] (a) Technical issues

[0005] The present invention aims to provide a calcination processing equipment for purifying quartz sand, so as to solve the problems of uneven heating of quartz sand and the inability to recover and utilize the heat of high-temperature quartz sand in traditional quartz sand calcination equipment.

[0006] (II) Technical Content

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a calcination processing equipment for purifying quartz sand, including a base and a calcination chamber fixedly installed on the upper end of the base. Multiple high-frequency electric heating tubes are fixedly installed inside the calcination chamber. A storage hopper is connected to the upper end of the calcination chamber and a discharge port is provided at the lower end. A turning roller is rotatably installed inside the calcination chamber near the bottom surface. A motor for driving the turning roller is fixedly installed on the rear side of the calcination chamber. A receiving box is fixedly installed on the upper end surface of the base and directly below the discharge port. A heat exchange mechanism is fixedly installed inside the receiving box. A heating coating is fixedly installed on the outside of the storage hopper. The heat exchange mechanism and the heating coating are circulated and connected through a circulating liquid pump.

[0008] Furthermore, the heat exchange mechanism includes multiple heat exchange plates fixedly installed inside the receiving box. The heat exchange plates are provided with multiple channels for the flow of heat exchange medium. Both ends of the multiple channels are connected to a manifold box. One manifold box is connected to a circulating liquid pump, and the other manifold box is connected to a heating coating.

[0009] Furthermore, the heating coating has a hollow structure, in which the heat exchange medium flows, and its inlet is connected to a circulating liquid pump, while its outlet is connected to a manifold.

[0010] Furthermore, the heat exchange medium is water or oil.

[0011] Furthermore, multiple arc-shaped lifting plates are fixedly provided on the surface of the turning roller.

[0012] Furthermore, a heat insulation plate is fixedly installed inside the calcination chamber and outside the high-frequency electric heating tube.

[0013] Furthermore, gate valves are provided at both the lower outlet of the storage hopper and the discharge port.

[0014] Furthermore, the bottom of the receiving box is funnel-shaped and a cap is provided at the bottom outlet.

[0015] (III) Technical Effects

[0016] The advantages of this utility model compared with the prior art are as follows:

[0017] 1. Improved heating uniformity: By setting up a turning roller and an arc-shaped lifting plate in the calcination chamber, the motor drives the turning roller to rotate, so that the quartz sand is constantly turned and lifted during the calcination process, which effectively avoids the accumulation of quartz sand. The quartz sand can fully contact the heat generated by the high-frequency electric heating tube, ensuring uniform heating.

[0018] 2. Energy Recovery and Utilization: A heat exchange mechanism and a heating coating are installed, and the two are connected by a circulating liquid pump to form a circulation system. When high-temperature quartz sand falls into the receiving box, its heat is absorbed by the heat exchange mechanism. The heat exchange medium, after being heated, flows into the heating coating to preheat the quartz sand in the storage hopper. This heat recovery and utilization method greatly reduces energy waste. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a calcination processing device for purifying quartz sand according to this utility model. Figure 1 .

[0020] Figure 2 This is a three-dimensional structural diagram of a calcination processing device for purifying quartz sand according to this utility model. Figure 2 .

[0021] Figure 3 This is a three-dimensional structural diagram of a calcination processing device for purifying quartz sand according to this utility model. Figure 3 .

[0022] Figure 4 This is a schematic diagram of the main structure of a calcination processing equipment for purifying quartz sand according to this utility model.

[0023] Figure 5 This is a right-side structural schematic diagram of a calcination processing equipment for purifying quartz sand according to this utility model.

[0024] Figure 6 This is a schematic cross-sectional view of a calcination processing device for purifying quartz sand according to this utility model. Figure 1 .

[0025] Figure 7 This is a schematic cross-sectional view of a calcination processing device for purifying quartz sand according to this utility model. Figure 2 .

[0026] As shown in the figure: 1. Calcination chamber; 2. High-frequency electric heating tube; 3. Storage hopper; 4. Discharge port; 5. Base; 6. Turning roller; 7. Motor; 8. Receiving box; 9. Heat exchange mechanism; 10. Heating coating; 11. Circulating liquid pump; 12. Heat exchange plate; 13. Channel; 14. Manifold; 15. Arc-shaped lifting plate; 16. Insulation plate; 17. Gate valve; 18. Cover. Detailed Implementation

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided with," "installed," "connected," "linked," etc., 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.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] Combined with appendix Figure 1 To be continued Figure 7A calcination processing device for purifying quartz sand includes a base 5 and a calcination chamber 1 fixedly disposed on the upper end of the base 5. Multiple high-frequency electric heating tubes 2 are fixedly disposed inside the calcination chamber 1. A heat insulation plate 16 is fixedly disposed inside the calcination chamber 1 and outside the high-frequency electric heating tubes 2. A storage hopper 3 is connected to the upper end of the calcination chamber 1, and a discharge port 4 is provided at the lower end. Gate valves 17 are provided at both the lower outlet of the storage hopper 3 and the discharge port 4. A turning roller 6 is rotatably disposed inside the calcination chamber 1 near the bottom surface. Multiple arc-shaped lifting plates 15 are fixedly provided on the surface of the turning roller 6. A motor 7 for driving the turning roller 6 to rotate is fixedly provided on the rear side of the calcining chamber 1. A receiving box 8 is fixedly provided on the upper end face of the base 5 and directly below the discharge port 4. The bottom of the receiving box 8 is funnel-shaped and a cover 18 is provided at the bottom outlet. A heat exchange mechanism 9 is fixedly provided inside the receiving box 8. A heating coating 10 is fixedly provided on the outside of the storage hopper 3. The heat exchange mechanism 9 and the heating coating 10 are circulated and connected by a circulating liquid pump 11.

[0031] The working principle of the calcination processing equipment for purifying quartz sand according to this utility model is as follows: The equipment uses a high-frequency electric heating tube 2 as the main heating source to heat and calcine the quartz sand in the calcination chamber 1. Through the rotation of the turning roller 6 and the arc-shaped lifting plate 15 on it, the quartz sand is continuously turned over in the calcination chamber 1 to achieve uniform heating. At the same time, the heat exchange mechanism 9 is used to recover the heat of the high-temperature quartz sand after calcination. The heat exchange medium is circulated between the heat exchange mechanism 9 and the heating coating 10 through the circulating liquid pump 11 to realize the reuse of heat and improve energy utilization efficiency.

[0032] In this embodiment, as a preferred technical solution, the heat exchange mechanism 9 includes multiple heat exchange plates 12 fixedly disposed inside the receiving box 8. The heat exchange plates 12 are provided with multiple channels 13 for the flow of heat exchange medium. Both ends of the multiple channels 13 are connected to a manifold box 14. One manifold box 14 is connected to the circulating liquid pump 11, and the other manifold box 14 is connected to the heating coating 10. The heating coating 10 is a hollow structure, and the heat exchange medium flows inside it. Its inlet is connected to the circulating liquid pump 11, and its outlet is connected to the manifold box 14. The heat exchange medium is water or oil.

[0033] The working process of the calcination processing equipment for purifying quartz sand according to this utility model is as follows:

[0034] 1. First, the quartz sand to be calcined is added to the calcination chamber 1 through the storage hopper 3. After the addition is completed, the gate valve 17 at the lower outlet of the storage hopper 3 is closed. Under the action of the circulating liquid pump 11, the heat exchange medium inside the heating coating 10, which has a certain temperature, circulates and begins to preheat the quartz sand in the storage hopper 3.

[0035] 2. Start the high-frequency electric heating tube 2 to heat the quartz sand in the calcination chamber 1. At the same time, start the motor 7. The motor 7 drives the turning roller 6 to rotate. The arc-shaped lifting plate 15 on the surface of the turning roller 6 continuously turns and lifts the quartz sand, so that the quartz sand is heated evenly. The fluid impurities generated during the calcination process are volatilized and removed. The upper end of the calcination chamber 1 is equipped with an exhaust valve for discharging waste gas, which is not shown in the figure.

[0036] 3. After calcination, open the gate valve 17 at the discharge port 4 at the lower end of the calcination chamber 1, and the quartz sand falls into the receiving box 8. At this time, the heat exchange mechanism 9 inside the receiving box 8 starts to work, and the heat of the high-temperature quartz sand is transferred to the heat exchange plate 12. After the heat exchange medium in the internal channel 13 of the heat exchange plate 12 absorbs the heat, it is transported to the heating coating 10 through the manifold 14 and the circulating liquid pump 11 to preheat the quartz sand in the storage hopper 3, so as to realize the recovery and utilization of heat.

[0037] 4. When the quartz sand in the receiving box 8 needs to be removed, simply open the cover 18 at the bottom outlet of the receiving box 8.

[0038] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A calcination processing device for purifying quartz sand, comprising a base (5) and a calcination chamber (1) fixedly disposed on the upper end of the base (5), wherein a plurality of high-frequency electric heating tubes (2) are fixedly disposed inside the calcination chamber (1), and a storage hopper (3) is connected to the upper end of the calcination chamber (1) and a discharge port (4) is provided at the lower end, characterized in that: The calcination chamber (1) is equipped with a turning roller (6) near the bottom. The rear side of the calcination chamber (1) is fixed with a motor (7) for driving the turning roller (6) to rotate. The upper end of the base (5) and directly below the outlet (4) is fixed with a receiving box (8). The receiving box (8) is fixed with a heat exchange mechanism (9). The storage hopper (3) is fixed with a heating coating (10). The heat exchange mechanism (9) and the heating coating (10) are circulated and connected by a circulating liquid pump (11).

2. The calcination processing equipment for purifying quartz sand according to claim 1, characterized in that: The heat exchange mechanism (9) includes multiple heat exchange plates (12) fixedly installed inside the receiving box (8). Multiple channels (13) for the heat exchange medium to circulate are provided inside the heat exchange plates (12). Both ends of the multiple channels (13) are connected to a manifold (14). One manifold (14) is connected to the circulating liquid pump (11), and the other manifold (14) is connected to the heating coating (10).

3. The calcination processing equipment for purifying quartz sand according to claim 2, characterized in that: The heating coating (10) is a hollow structure, and the heat exchange medium flows inside it. Its inlet is connected to the circulating liquid pump (11), and its outlet is connected to the manifold (14).

4. The calcination processing equipment for purifying quartz sand according to claim 3, characterized in that: The heat exchange medium is water or oil.

5. The calcination processing equipment for purifying quartz sand according to claim 1, characterized in that: The surface of the turning roller (6) is fixed with multiple arc-shaped lifting plates (15).

6. The calcination processing equipment for purifying quartz sand according to claim 1, characterized in that: A heat insulation plate (16) is fixedly installed inside the calcination chamber (1) and outside the high-frequency electric heating tube (2).

7. The calcination processing equipment for purifying quartz sand according to claim 1, characterized in that: Gate valves (17) are provided at the lower outlet of the storage hopper (3) and at the discharge port (4).

8. The calcination processing equipment for purifying quartz sand according to claim 1, characterized in that: The bottom of the receiving box (8) is funnel-shaped and the bottom outlet is provided with a cover (18).

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