Quartz sand calcining device with heat recycling

Abstract

The utility model relates to quartz sand calcining technical field, concretely is a kind of quartz sand calcining device of heat recycling, including the casing, the inside fixed connection of the casing has auger conveyor, the auger conveyor is obliquely arranged, one end of the auger conveyor is fixedly connected with the communication of the crushing shell, raw material not easy to calcine is crushed again by using crushing assembly and is input into auger conveyor again to filter again, the cooperation setting of auger conveyor, crushing shell, motor, rotating rod, gear, grinding bar and conveying pipeline realizes that large particle raw material is crushed again and enters auger conveyor to screen, can make the raw material particle size more uniform that enters calcining bin, and raw material of particle size uniform can keep consistent reaction progress in calcining process, it is favorable to improve the quality stability of quartz sand calcined, reduce the product quality uneven condition caused by raw material particle size difference.

Description

Technical Field

[0001] This utility model relates to the field of quartz sand calcination technology, and in particular to a quartz sand calcination device that uses heat recycling. Background Technology

[0002] Quartz sand is quartz particles produced by crushing and processing quartz stone. Quartz stone is a non-metallic mineral, a hard, wear-resistant, and chemically stable silicate mineral. Quartz sand is an important industrial mineral raw material, a non-hazardous chemical, and is widely used in glass, casting, ceramics and fireproof materials, ferrosilicon smelting, metallurgical flux, metallurgy, construction, chemical, plastics, rubber, abrasives, filter media, and other industries. Quartz stone requires calcination during production, and the equipment used for calcination is the quartz sand calcination device.

[0003] A calcination apparatus for purifying quartz sand, with authorized publication number CN220339090U, relates to the technical field of calcination apparatus. Specifically, it includes a shell with several equidistant receiving slots on its inner sidewalls. Each receiving slot contains a heating block, which is connected to an external power source via wires. A partition is installed inside the shell, its edges fixed to the inner wall. A mounting frame is installed on the outer side of the shell, and an air pump is mounted on the frame. An inlet pipe is connected to the air pump's inlet, the end of which is connected to an external chlorinating agent gas source. An outlet pipe is connected to the air pump's outlet. This application utilizes the air pump to deliver external chlorinating agent gas through the inlet and outlet pipes into the shell, and then blows it through the outlet into the quartz sand pile inside the shell. This allows for thorough contact and reaction with the quartz sand, effectively removing impurities from the quartz crystal lattice, purifying the quartz sand, and improving its performance.

[0004] Regarding the aforementioned technologies, the existing quartz sand calcination devices have the following drawbacks: during the calcination process, the difference in raw material particle size leads to uneven heat transfer. Small particles may be over-calcined, while large particles may be under-calcined, resulting in inconsistent quality of the final product. Therefore, this utility model provides a quartz sand calcination device that utilizes heat recycling. Utility Model Content

[0005] The purpose of this application is to provide a quartz sand calcination apparatus that uses heat recycling to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: A quartz sand calcination device using heat recycling includes a housing. An auger conveyor is fixedly connected inside the housing, and the auger conveyor is inclined. One end of the auger conveyor is fixedly connected to a communicating crushing shell. A pair of rotating rods are rotatably connected inside the crushing shell. Gears are fixedly connected to the side walls of each rotating rod, and the gears are located outside the crushing shell. The pair of gears mesh with each other. The rotating rods pass through the crushing shell and the housing. A motor is fixedly connected to the side wall of the housing. The output end of the motor is fixedly connected to one end of one of the rotating rods. Grinding rods are fixedly connected to the side walls of each rotating rod, and the grinding rods are located inside the crushing shell.

[0007] Preferably, a feed nozzle is fixedly connected to the side wall of the housing, and one end of the feed nozzle is fixedly connected to the top of the auger conveyor.

[0008] Preferably, the bottom of the auger conveyor is provided with multiple filter holes, and the bottom of the crushing shell is fixedly connected to a connecting conveying pipe. One end of the conveying pipe is fixedly connected to one end of the auger conveyor, and the conveying pipe is inclined.

[0009] Preferably, a calcination chamber is fixedly connected to the bottom of the casing, a plurality of heating plates are provided on the side wall of the calcination chamber, and a stirrer is provided on the inner bottom wall of the calcination chamber.

[0010] Preferably, a filter chamber is fixedly connected to the inner top wall of the housing, and multiple exhaust fans are provided on the inner top wall of the filter chamber, while a filter plate is provided inside the filter chamber.

[0011] Preferably, the sidewall of the filter plate has a groove, and the inside of the groove has a protrusion. The protrusion is elastically arranged, and the inner sidewall of the filter chamber has a slot that matches the protrusion.

[0012] Preferably, the top of the filter chamber is provided with multiple interconnected air pipes, the air pipes penetrate the casing, one end of the air pipe is fixedly connected to an air pump, and the side wall of the air pump is fixedly connected to the side wall of the calcination chamber.

[0013] In summary, the technical effects and advantages of this utility model are as follows: The crushing component crushes the raw materials that are difficult to calcine and then feeds them into the auger conveyor for further filtration. Through the coordinated arrangement of the auger conveyor, crushing shell, motor, rotating rod, gears, grinding rod, and conveying pipeline, large particles of raw material are crushed and then re-enter the auger conveyor for screening. This results in more uniform particle size of the raw materials entering the calcination chamber. Raw materials with uniform particle size can maintain a consistent reaction rate during calcination, which is beneficial for improving the quality stability of calcined quartz sand and reducing inconsistent product quality caused by differences in raw material particle size. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a first-view axial side view of the structure of this utility model; Figure 2 This is a first-view axonometric cross-sectional view of the structure of this utility model; Figure 3 This is a schematic diagram of the conveying pipeline of this utility model; Figure 4 This is a schematic diagram of the structure of the grinding rod of this utility model; Figure 5 This is a schematic diagram of the structure of the trachea of ​​this utility model; Figure 6 This is a schematic diagram of the structure of the stirrer of this utility model.

[0016] In the diagram: 1. Casing; 2. Calcination chamber; 3. Feed nozzle; 4. Air pipe; 5. Motor; 6. Screw conveyor; 7. Filter hole; 8. Crushing shell; 9. Conveying pipe; 10. Grinding rod; 11. Gear; 12. Rotating rod; 13. Filter chamber; 14. Air pump; 15. Filter plate; 16. Exhaust fan; 17. Heating plate; 18. Agitator; 19. Protrusion; 20. Slot. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Example 1: Reference Figure 1-6 The illustrated quartz sand calcination device, utilizing heat recycling, includes a housing 1. The housing 1 houses and protects the internal components, providing a supporting structure for the entire device. An auger conveyor 6 is fixedly connected inside the housing 1. The auger conveyor 6 transports the quartz sand raw material; its inclined design allows for gravity-assisted transport, improving efficiency. One end of the auger conveyor 6 is fixedly connected to a communicating crushing shell 8, which crushes large-particle quartz sand raw material, ensuring the particle size of the raw material entering subsequent processes meets requirements. A pair of rotating rods 12 are rotatably connected inside the crushing shell 8. Driven by a motor 5, the rotating rods 12 rotate, driving the grinding rods 10. Gears 11 are fixedly connected to the side walls of each rotating rod 12, located outside the crushing shell 8. The pair of meshing gears 11 allows the two rotating rods 12 to rotate synchronously in opposite directions, ensuring uniform crushing performance. A rotating rod 12 passes through the crushing shell 8 and the machine housing 1. A motor 5 is fixedly connected to the side wall of the machine housing 1. The output end of the motor 5 is fixedly connected to one end of the rotating rod 12, and the motor 5 provides power to the rotating rod 12, driving it to rotate at high speed. Grinding rods 10 are fixedly connected to the side walls of the rotating rod 12. The grinding rods 10 are inside the crushing shell 8 and rotate with the rotating rod 12, grinding and crushing the large particles of raw material entering the crushing shell 8 to reduce their particle size and meet the particle size requirements for calcination.

[0020] Example 2: Reference Figure 1-6Based on the same concept as in Embodiment 1 above, this embodiment further proposes that a feed nozzle 3 is fixedly connected to the side wall of the casing 1. The feed nozzle 3 is used to introduce the quartz sand raw material into the device, and one end of it is fixedly connected to the top of the auger conveyor 6 to facilitate the smooth entry of the raw material into the auger conveyor 6 for subsequent conveying. Multiple filter holes 7 are provided at the bottom of the auger conveyor 6. The filter holes 7 allow small particles of quartz sand raw material to fall off, achieving preliminary screening of the raw material particle size and ensuring that only raw materials of suitable particle size enter the next process. A connecting conveying pipe 9 is fixedly connected to the bottom of the crushing shell 8. The conveying pipe 9 is used to transport the crushed raw material in the crushing shell 8 to the auger conveyor 6. One end of it is fixedly connected to one end of the auger conveyor 6. The conveying pipe 9 is inclined, allowing gravity-assisted conveying to improve conveying efficiency. A calcination chamber 2 is fixedly connected to the bottom of the casing 1. The calcination chamber 2 is the place for calcining the screened quartz sand raw material of suitable particle size. The calcination chamber 2 has multiple heating plates 17 on its side walls. These heating plates 17 provide heat to the quartz sand raw material inside the calcination chamber 2, enabling the calcination process. An agitator 18 is installed on the bottom wall of the calcination chamber 2. The agitator 18 stirs the raw material during calcination, ensuring more uniform heating and improving the calcination effect. A filter chamber 13 is fixedly connected to the top wall of the casing 1. The filter chamber 13 filters the hot air generated during calcination, removing impurities. Multiple exhaust fans 16 are installed on the top wall of the filter chamber 13. These exhaust fans 16 draw the hot air generated in the calcination chamber 2 and direct it into the filter chamber 13 for filtration. The filter chamber 13 contains filter plates 15, which intercept impurity particles in the hot air, ensuring the circulating hot air is clean and does not contaminate subsequent processes. The filter plate 15 has a groove on its side wall, and a protrusion 19 is provided inside the groove. The protrusion 19 is elastically set. The inner side wall of the filter chamber 13 has a slot 20 that matches the protrusion 19. This structure facilitates the installation and removal of the filter plate 15, and makes it easy to clean or replace it. The top of the filter chamber 13 is provided with multiple interconnected air pipes 4. The air pipes 4 are used to transport the filtered hot air to other locations. The air pipes 4 pass through the casing 1, and one end of the air pipe 4 is fixedly connected to an air pump 14. The air pump 14 can increase the delivery pressure of the hot air, ensuring that the hot air can be smoothly delivered from the filter chamber 13 to the calcination chamber 2. The side wall of the air pump 14 is fixedly connected to the side wall of the calcination chamber 2, realizing the return of the filtered hot air to the calcination chamber 2 for heat recycling.

[0021] The working principle of this device is as follows: When using this device, the operator first puts the quartz sand to be calcined into the feed nozzle 3, which enters the auger conveyor 6. The auger conveyor 6 is inclined. Quartz sand of suitable size will fall from the filter hole 7 into the calcination chamber 2, while larger pieces of material will be conveyed to the crushing shell 8. The motor 5 is started, which drives the rotating rod 12 to rotate. Through the meshing of a pair of gears 11, the rotating rod 12 drives the grinding rod 10 to crush the large pieces of material. The crushed material returns to the auger conveyor 6 through the conveying pipe 9, which is also inclined. The large pieces of material will return to the auger conveyor 6 due to their own gravity. After the raw materials of suitable size fall into the calcination chamber 2, the calcination is more complete through the cooperation of the heating plate 17 and the agitator 18. At the same time as calcination, the exhaust fan 16 is started. The exhaust fan 16 filters the impurities of the hot air generated during calcination through the filter plate 15 and returns to the calcination chamber 2 through the air pipe 4 and the air pump 14.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quartz sand calcination device for heat recycling, comprising a housing (1), characterized in that: The machine housing (1) is fixedly connected to an auger conveyor (6), which is inclined. One end of the auger conveyor (6) is fixedly connected to a connected crushing shell (8). A pair of rotating rods (12) are rotatably connected inside the crushing shell (8). Gears (11) are fixedly connected to the side walls of the rotating rods (12). The gears (11) are outside the crushing shell (8). The pair of gears (11) mesh with each other. The rotating rods (12) pass through the crushing shell (8) and the machine housing (1). A motor (5) is fixedly connected to the side wall of the machine housing (1). The output end of the motor (5) is fixedly connected to one end of one of the rotating rods (12). A grinding rod (10) is fixedly connected to the side wall of the rotating rod (12). The grinding rod (10) is inside the crushing shell (8).

2. The quartz sand calcining device of claim 1, wherein: The side wall of the housing (1) is fixedly connected to a feed nozzle (3), and one end of the feed nozzle (3) is fixedly connected to the top of the auger conveyor (6).

3. The quartz sand calcining device of claim 2, wherein: The bottom of the auger conveyor (6) is provided with multiple filter holes (7), and the bottom of the crushing shell (8) is fixedly connected to a conveying pipe (9). One end of the conveying pipe (9) is fixedly connected to one end of the auger conveyor (6), and the conveying pipe (9) is inclined.

4. The quartz sand calcining device of claim 3, wherein: The bottom of the casing (1) is fixedly connected to a calcining chamber (2), and the side wall of the calcining chamber (2) is provided with multiple heating plates (17). The bottom wall of the calcining chamber (2) is provided with a stirrer (18).

5. The quartz sand calcining device of claim 4, wherein: The inner top wall of the housing (1) is fixedly connected to a filter chamber (13), and the inner top wall of the filter chamber (13) is provided with multiple exhaust fans (16), and the filter chamber (13) is provided with a filter plate (15).

6. The quartz sand calcining device of claim 5, wherein: The filter plate (15) has a groove on its side wall, and a protrusion (19) is provided inside the groove. The protrusion (19) is elastically provided. The filter chamber (13) has a slot (20) on its inner side wall that is compatible with the protrusion (19).

7. The quartz sand calcining device of claim 6, wherein: The top of the filter chamber (13) is provided with multiple interconnected air pipes (4), which penetrate the casing (1). One end of the air pipe (4) is fixedly connected to an air pump (14), and the side wall of the air pump (14) is fixedly connected to the side wall of the calcination chamber (2).

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