Main control type conveying device applied to zircon sand processing production

Abstract

The invention relates to the technical field of material guiding and conveying, in particular to a master control type conveying device applied to zircon sand processing and production, which comprises a main conveying pipeline, and a middle driving shaft controlled by an external motor is movably assembled in the main conveying pipeline; the main conveying pipeline is composed of an input section with a feeding hopper at the upper end, an output section with a discharging hopper at the lower end and a drying section located in the middle, an externally-hung annular flow guiding device matched with the drying section is installed on the outer side of the input end of the main conveying pipeline, and a self-control type separating device is arranged in the drying section of the main conveying pipeline. According to the zircon sand conveying device, the drying section is arranged on the main conveying pipeline and is matched with the externally-hung annular flow guide device, the self-control type separation device and the electric heating module, and automatic regulation and control of the temperature and the dryness in the zircon sand conveying process are achieved.

Description

Technical Field

[0001] This invention relates to the field of material conveying technology, and in particular to a master-controlled conveying device applied to zircon sand processing and production. Background Technology

[0002] Zircon sand, also known as zircon stone, is a high-purity mineral obtained from zircon ore through beneficiation processes such as crushing, screening, water separation, and electrostatic separation. Its main component is ZrSiO4, containing 57%-66% ZrO2 and 32%-33% SiO2. It has excellent properties such as high temperature resistance, corrosion resistance, and high hardness, and is widely used in ceramics, refractory materials, nuclear energy, aerospace and other fields. It is an important strategic industrial raw material.

[0003] Currently, the mainstream conveying methods in zircon sand processing are pneumatic conveying and mechanical conveying. Among them, pneumatic conveying is the most widely used due to its advantages of being fully enclosed and suitable for long-distance and multi-point conveying. It uses compressed air to generate airflow to suspend the zircon sand in the pipeline to complete the conveying. Mechanical conveying mainly uses belt conveyors and screw conveyors, which are suitable for short-distance and high-volume material transfer.

[0004] During zircon sand processing, its moisture content varies significantly due to the influence of mineral processing techniques and ambient humidity. Existing conveying systems cannot automatically regulate the material's temperature and dryness during transport, leading to numerous defects in the process. When humidity is too high, liquid bridges easily form between zircon sand particles, causing adhesion and agglomeration, clogging conveying pipes and feeding devices, increasing equipment wear and maintenance costs. Simultaneously, damp material easily adheres to the surface of conveying components, resulting in material loss. When humidity is too low, the zircon sand becomes more brittle, easily generating large amounts of dust during transport, polluting the environment and exacerbating equipment wear. Furthermore, the static electricity generated by dry particles attracts water molecules from the environment, further affecting material uniformity.

[0005] Existing conveying systems can only achieve simple material transfer, lacking automatic temperature and dryness control mechanisms. They cannot dynamically adjust parameters based on the real-time moisture content of zircon sand, resulting in poor conveying stability, affecting material quality, and consequently hindering the efficiency and product quality of subsequent deep processing. Therefore, solving the problem of the inability to automatically control temperature and dryness during zircon sand conveying has become a pressing technical bottleneck for the zircon sand processing industry. Summary of the Invention

[0006] The technical problem to be solved by the present invention is that the existing zircon sand conveying device cannot automatically regulate the material temperature and dryness, and has poor conveying stability.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a master control conveying device applied to zircon sand processing and production, including a main conveying pipeline, wherein a central drive shaft controlled by an external motor is movably assembled inside the main conveying pipeline, the main conveying pipeline consists of an input section with a feed hopper at the upper end, an output section with a discharge hopper at the lower end, and a drying section located in the middle, an external annular guide device that cooperates with the drying section is installed on the outside of the input end of the main conveying pipeline, and an automatic separation device is set inside the drying section of the main conveying pipeline.

[0008] The diameter of the drying section gradually increases from the input section to the output section, and the upper ends of the drying section and the output section are fixedly connected by a lateral guide shroud.

[0009] The drying section has external air vents with built-in filters at both ends of its outer side. The external air vent on one side of the drying section is fixedly connected to the air outlet of the external ring-shaped air guide device through a lateral guide pipe. An external assembly cover is installed on the external air vent on the other side of the drying section. The external assembly cover is filled with a removable filter element.

[0010] An electric heating module for adjusting the drying temperature is installed on the side guide pipe.

[0011] The externally mounted annular flow guide device includes an annular transmission cover fixed to the outside of the input end by an inner bracket, an annular motor installed inside the annular transmission cover, and centrifugal blades installed on the rotor outside the annular motor.

[0012] The self-controlled separation device includes a sliding adjustment cover that is slidably installed inside the drying section, an electrically controlled material guide cover that is movably installed on the inner wall of the drying section, and material feeding blades that are fixed on the inner wall of the electrically controlled material guide cover.

[0013] Inside the drying section, a top-mounted guide rail extending towards the output section is fixedly installed above the sliding adjustment cover. The upper end of the sliding adjustment cover has an upper guide groove that cooperates with the top-mounted guide rail. A top-mounted electric drive wheel that cooperates with the top-mounted guide rail is installed on the sliding adjustment cover. The sliding adjustment cover is adjusted by sliding and translating along the top-mounted guide rail through the top-mounted electric drive wheel.

[0014] Embedded temperature and humidity sensors are installed on both the inner and outer walls of the sliding adjustment cover.

[0015] The electrically controlled material guide cover includes a rotating cover movably installed on the inner wall of the drying section, a ring gear fixedly installed on the outer arc surface of the rotating cover, and a rotating motor fixed on the outer wall of the drying section. The rotating motor meshes with the ring gear through a control gear on the motor shaft.

[0016] The rotating cover has several arc-shaped flow guide ports inside, and an embedded pressure sensor is installed on the inner wall of the rotating cover.

[0017] The beneficial effects of this invention are: (1) By setting a drying section in the main conveying pipeline and cooperating with an external ring guide device, a self-controlled separation device and an electric heating module, the present invention realizes automatic control of temperature and dryness during the conveying of zircon sand; (2) The embedded temperature and humidity sensor monitors the temperature and humidity data in real time, providing a basis for regulation. The electric heating module adjusts the drying temperature. The sliding adjustment cover and the electric control guide cover work together to achieve automatic and uniform drying and stable conveying of materials. This effectively solves the problems of material sticking and clumping, dust pollution and large material loss in existing conveying devices, improves the conveying stability and material quality, and reduces equipment maintenance costs. (3) An automatic separation device is installed inside the drying section of the main conveying pipeline to adapt to the conveying needs of zircon sand with different moisture levels and meet the requirements of zircon sand deep processing technology. (4) By using centrifugal throwing combined with heating and air drying, the air circulation rate inside the zircon sand can be increased, the drying efficiency can be increased, and the internal dust can be filtered by the external detachable structure. This not only avoids the impact on the external environment, but also increases the dryness inside the equipment, extends the maintenance cycle, and reduces the later use cost. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a partial internal schematic diagram of the self-controlled separation device in the closed state of the present invention.

[0021] Figure 3 This is a partial internal schematic diagram of the self-controlled separation device in the open state of the present invention.

[0022] Figure 4 This is an internal cross-sectional view of the self-controlled separation device in this invention.

[0023] In the diagram: 1. Main conveying pipe; 2. External motor; 3. Central drive shaft; 4. Feed hopper; 5. Input section; 6. Discharge hopper; 7. Output section; 8. Drying section; 9. External annular flow guide device; 10. Self-controlled separation device; 11. Side flow guide hood; 12. Filter screen; 13. External air vent; 14. Side flow guide pipe; 15. External assembly cover; 16. Removable filter element; 17. Electric heating module; 18. Inner side. 19. Support frame; 20. Annular transmission cover; 21. Annular motor; 22. Centrifugal blades; 23. Sliding adjustment cover; 24. Electrically controlled material guide cover; 25. Material feeding blades; 26. Top guide rail; 27. Top guide groove; 28. Top electric drive wheel; 29. ​​Embedded temperature and humidity sensor; 30. Rotating cover; 31. Annular gear; 32. Rotating motor; 33. Control gear; 34. Arc-shaped flow guide port; 35. Embedded pressure sensor. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] Figure 1 , Figure 2 , Figure 3 and Figure 4The diagram shows a main control conveying device used in zircon sand processing. The connections of its components are as follows: The main conveying pipeline 1 is an integral conveying carrier. Its input section 5, drying section 8, and output section 7 are integrally formed structures. The upper end of the input section 5 is welded and fixed to the feed hopper 4. The lower end of the output section 7 is bolted to the discharge hopper 6. The two ends of the drying section 8 are seamlessly connected to the input section 5 and the output section 7, respectively. The upper ends of the drying section 8 and the output section 7 are welded and fixedly connected via a side guide shroud 11. An external motor 2 is bolted to the outer wall of the input section 5 of the main conveying pipeline 1. The output shaft is fixedly connected to the central drive shaft 3 by a coupling. The central drive shaft 3 is equipped with a spiral conveying blade. The central drive shaft 3 runs through the entire length of the main conveying pipe 1. Both ends are movably assembled with the inner wall of the main conveying pipe 1 through bearings. The external ring guide device 9 is fixed to the outside of the input end of the main conveying pipe 1 by bolts through the inner bracket 18. Its air outlet is welded to one end of the side guide pipe 14. The other end of the side guide pipe 14 is welded to the outer air vent 13 on one side of the drying section 8. The electric heating module 17 is fixed to the side guide pipe 14 by bracket bolts. Filter screens 12 are embedded and fixed inside the outer air vents 13 at both ends of the outer side of the drying section 8. The outer air vent 13 on the other side is threadedly connected to the external mounting cover 15, and a removable filter element 16 is fixed inside the external mounting cover 15. The self-controlled separation device 10 is assembled inside the drying section 8. The top guide rail 25 is fixed to the upper part of the inner wall of the drying section 8 by bolts. The sliding adjustment cover 22 slides with the top guide rail 25 through the upper guide groove 26, and the top electric drive wheel 27 on the sliding adjustment cover 22 rolls and fits against the top guide rail 25. Embedded temperature and humidity sensors 28 are installed and fixed on both the inner and outer walls of the section cover 22; the rotating cover 29 of the electrically controlled material guide cover 23 is movably assembled with the inner wall of the drying section 8 through bearings, the outer arc surface of the rotating cover 29 is welded and fixed to the ring gear 30, the rotating motor 31 is fixed to the outer wall of the drying section 8 through bracket bolts, the control gear 32 on its motor shaft is meshed with the ring gear 30, the material feeding blade 24 is welded and fixed to the inner wall of the rotating cover 29, and several arc-shaped guide ports 33 are integrally formed inside the rotating cover 29, and embedded pressure sensors 34 are installed and fixed on its inner wall.

[0027] Based on the above connection relationships, the conveying methods and detailed working processes of the equipment for zircon sand under different temperature and humidity conditions are as follows: First, after the equipment is started, the embedded temperature and humidity sensor 28 monitors the ambient temperature and humidity in the drying section 8 and the temperature and humidity of the zircon sand material itself in real time, and transmits the monitoring data to the main control module of the equipment (not shown). The main control module automatically adjusts the equipment operating parameters according to the preset temperature and humidity thresholds to adapt to the zircon sand conveying requirements under different temperature and humidity conditions.

[0028] When the zircon sand is detected to be in a low-humidity state (humidity below the preset threshold), the main control module immediately controls the start of the self-controlled separation device 10 and adjusts the coordinated operation of each component. The specific working process is as follows: the zircon sand enters the input section 5 of the main conveying pipeline 1 through the feed hopper 4. The external motor 2 starts and drives the central drive shaft 3 to rotate. During the rotation of the central drive shaft 3, the zircon sand is slowly conveyed to the drying section 8 to avoid the accumulation of high-humidity materials due to excessive conveying speed. At the same time, the ring motor 20 in the external ring guide device 9 starts and drives the centrifugal blades 21 to rotate at high speed, generating a stable high-pressure airflow. The airflow is conveyed through the side guide pipe 14. The electric heating module 17 on the side guide pipe 14 receives the instruction from the main control module and raises the internal temperature of the heating sliding regulating cover 22 to heat the airflow to the preset drying temperature. The heated high-temperature airflow enters the interior of the drying section 8 through the outer vent 13 on one side of the drying section 8. The electrically controlled guide cover 23 starts to work to form a spiral airflow around the outside of the sliding regulating cover 22. When the zircon sand is detected to be in a high-humidity state (humidity exceeding a preset threshold), the sliding adjustment cover 22 in the self-controlled separation device 10 slides to the left, and at the same time, the electrically controlled guide cover 23 starts to accelerate. The rotating motor 31 starts, driving the control gear 32 on its motor shaft to rotate. The control gear 32 drives the ring gear 30 that meshes with it to rotate. The ring gear 30 drives the rotating cover 29 to rotate synchronously. During the rotation of the rotating cover 29, the material-dispensing blades 24 on its inner wall rotate at high speed, lifting, stirring, and dispersing the high-humidity zircon sand entering the drying section 8, fully throwing away the clumps of high-humidity zircon sand, so that each grain of zircon sand can be fully absorbed. The high-temperature airflow enables rapid air drying. Simultaneously, the rotating hood 29 generates centrifugal force, creating a centrifugal guiding effect. Under the action of the rotational force, the zircon sand is carried to a high position and falls down, while being continuously pushed by the feeding blades 24 and the conical structure, slowly moving towards the output section 7. During this process, the moisture on the surface of the highly moist zircon sand is rapidly evaporated by the high-temperature airflow. The water vapor generated by evaporation, along with a small amount of dust, is discharged through the outer vent 13 on the other side of the drying section 8. After being filtered by the detachable filter element 16 inside the external assembly hood 15, the water vapor is discharged and the dust is trapped, preventing environmental pollution. The filter screen 12 effectively prevents zircon sand particles from overflowing with the airflow, ensuring that the material is not lost.

[0029] An embedded pressure sensor 34 monitors the pressure of the material on the rotating hood 29 in real time. If the pressure is too high, it indicates that the material is accumulating. The main control module immediately increases the speed of the rotating motor 31, thereby increasing the speed of the rotating hood 29 and the feeding blades 24 to enhance the centrifugal guiding and stirring effect. At the same time, the position of the sliding adjustment hood 22 is adjusted to further increase the flow space and prevent the material from clogging the drying section 8. When the embedded temperature and humidity sensor 28 detects that the humidity of the zircon sand has dropped to the preset threshold, the main control module controls the electric heating module 17 to reduce the heating temperature, adjusts the speed of the rotating motor 31 to the normal state, resets the sliding adjustment hood 22, and the self-controlled separation device 10 maintains the normal operating state to ensure stable material conveying.

[0030] Regardless of temperature and humidity, the dried zircon sand will smoothly transition to the output section 7 via the side guide shroud 11. Driven by the central drive shaft 3, it will finally be discharged through the discharge hopper 6, completing the entire conveying process. The detachable filter element 16 can be disassembled and replaced periodically to ensure the filtration effect. The connection structure of each component is sealed to ensure the stability and sealing of the equipment operation and reduce equipment maintenance costs.

[0031] An embedded temperature and humidity sensor 28 monitors the temperature and humidity of the inner and outer walls of the sliding adjustment cover 22 in real time, i.e., the temperature and humidity of the material and the environment in the drying section 8. When the humidity is detected to be too high, the electric heating module 17 raises the heating temperature, and at the same time, the top electric drive wheel 27 starts, driving the sliding adjustment cover 22 to move along the top guide rail 25 towards the output section 7, increasing the effective flow space in the drying section 8 and extending the material drying time. The rotating motor 31 starts, driving the control gear 32 to rotate, driving the ring gear 30 and the rotating cover 29 to rotate synchronously. The material feeding blade 24 rotates with the rotating cover 29 to stir and disperse the zircon sand, so that the material is heated evenly and avoids sticking and clumping. An embedded pressure sensor 34 monitors the pressure of the material on the rotating cover 29 in real time. If the pressure is too high, it indicates that the material is accumulating. At this time, the rotation speed of the rotating cover 29 can be increased, and the position of the sliding adjustment cover 22 can be adjusted to avoid blockage.

[0032] Moisture and a small amount of dust generated during the drying process are discharged through the outer vent 13 on the other side of the drying section 8. The removable filter element 16 inside the external assembly cover 15 filters the moisture and dust to prevent environmental pollution; the filter screen 12 inside the outer vent 13 prevents zircon sand particles from overflowing. The dried zircon sand is smoothly transferred to the output section 7 through the side guide cover 11 and finally discharged through the discharge hopper 6, completing the conveying process.

[0033] The detachable filter element 16 can be disassembled and replaced regularly to ensure the filtration effect; the sliding adjustment cover 22 cooperates with the top guide rail 25 through the upper guide groove 26, and slides smoothly, and its position can be flexibly adjusted according to the material flow rate and humidity; the arc-shaped guide port 33 can make the airflow evenly distributed in the drying section 8, further improving the drying uniformity and ensuring that the dryness of the zircon sand meets the requirements of subsequent processing.

[0034] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A master-controlled conveying device for zircon sand processing, comprising a main conveying pipeline (1), characterized in that: The main conveying pipe (1) is equipped with a central drive shaft (3) controlled by an external motor (2). The main conveying pipe (1) consists of an input section (5) with a feed hopper (4) at the upper end, an output section (7) with a discharge hopper (6) at the lower end, and a drying section (8) located in the middle. An external annular guide device (9) that cooperates with the drying section (8) is installed on the outside of the input end of the main conveying pipe (1). An automatic separation device (10) is installed inside the drying section (8) of the main conveying pipe (1).

2. The main control conveying device for zircon sand processing and production according to claim 1, characterized in that: The diameter of the drying section (8) gradually increases from the input section (5) to the output section (7), and the upper ends of the drying section (8) and the output section (7) are fixedly connected by a side guide shroud (11).

3. The main control conveying device for zircon sand processing and production according to claim 1, characterized in that: The drying section (8) has external air vents (13) with built-in filters (12) at both ends of its outer side. The external air vent (13) on one side of the drying section (8) is fixedly connected to the air outlet of the external ring guide device (9) through the side guide pipe (14). An external assembly cover (15) is installed on the external air vent (13) on the other side of the drying section (8). The external assembly cover (15) is filled with a removable filter element (16).

4. The main control conveying device for zircon sand processing and production according to claim 3, characterized in that: An electric heating module (17) for adjusting the drying temperature is installed on the lateral guide pipe (14).

5. A main control conveying device for zircon sand processing and production according to claim 1, characterized in that: The external annular flow guide device (9) includes an annular transmission cover (19) fixed to the outside of the input end by an inner bracket (18), an annular motor (20) installed inside the annular transmission cover (19), and centrifugal blades (21) installed on the rotor outside the annular motor (20).

6. The main control conveying device for zircon sand processing and production according to claim 1, characterized in that: The self-controlled separation device (10) includes a sliding adjustment cover (22) that is slidably installed inside the drying section (8), an electrically controlled guide cover (23) that is movably installed on the inner wall of the drying section (8), and a material-dispensing blade (24) that is fixed on the inner wall of the electrically controlled guide cover (23).

7. A master-controlled conveying device for zircon sand processing and production according to claim 6, characterized in that: Inside the drying section (8), a top guide rail (25) extending to the output section (7) is fixedly installed above the sliding adjustment cover (22). The upper end of the sliding adjustment cover (22) is provided with an upper guide groove (26) that cooperates with the top guide rail (25). A top electric drive wheel (27) that cooperates with the top guide rail (25) is installed on the sliding adjustment cover (22). The sliding adjustment cover (22) is slidably adjusted along the top guide rail (25) by the top electric drive wheel (27).

8. A master-controlled conveying device for zircon sand processing and production according to claim 7, characterized in that: Embedded temperature and humidity sensors (28) are installed on both the inner and outer walls of the sliding adjustment cover (22).

9. A master-controlled conveying device for zircon sand processing and production according to claim 6, characterized in that: The electrically controlled material guide cover (23) includes a rotating cover (29) movably installed on the inner wall of the drying section (8), a ring gear (30) fixedly installed on the outer arc surface of the rotating cover (29), and a rotating motor (31) fixed on the outer wall of the drying section (8). The rotating motor (31) meshes with the ring gear (30) through a control gear (32) on the motor shaft.

10. A master-controlled conveying device for zircon sand processing according to claim 9, characterized in that: The rotating cover (29) has several arc-shaped flow guide ports (33) inside, and an embedded pressure sensor (34) is installed on the inner wall of the rotating cover (29).

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