A multi-layer follow-up conveying and screening device for zircon sand production

Abstract

This invention relates to the field of zircon sand conveying and guiding technology, and to a multi-layer follow-up conveying and screening device for zircon sand production. It includes a double-layer cylinder structure consisting of an external main mounting cylinder and an internal secondary regulating cylinder. The internal secondary regulating cylinder houses an internal spiral conveying shaft. An electrically controlled follow-up control component is located between the internal secondary regulating cylinder and the external main mounting cylinder. An electrically controlled screening module is mounted on the internal secondary regulating cylinder. This invention integrates conveying, temperature control, and screening functions, enabling adjustable material guiding speed under a constant drive speed, and facilitating subsequent maintenance.

Description

Technical Field

[0001] This invention relates to the field of zircon sand conveying and guiding technology, and in particular to a multi-layer follow-up conveying and screening device for zircon sand production. Background Technology

[0002] Zircon sand is an important inorganic non-metallic mineral raw material, widely used in ceramic glazes, refractory materials, precision casting, and the nuclear industry. During production and processing, zircon sand raw materials undergo multiple processes, including drying, grading, iron removal, and packaging, involving significant material conveying operations between these processes. Currently, companies typically use general-purpose conveying equipment such as screw conveyors, belt conveyors, or vibrating feeders to transfer zircon sand between workstations.

[0003] However, current material conveying mechanisms have the following shortcomings: First, they are functionally limited, serving only as material conveyors. Zircon sand processing is highly temperature-sensitive, requiring some processes to maintain or cool the material during conveying, while also necessitating screening to remove large particles. Existing conveying equipment cannot integrate temperature control and screening functions during the conveying process, forcing companies to configure separate heating / cooling devices and screening equipment, increasing equipment footprint, complicating process connections, and reducing overall production efficiency. Second, adjusting the conveying speed is inconvenient. In actual production, different processes require different zircon sand supply rates. Most existing conveying mechanisms adjust the conveying speed by changing the drive motor speed, but speed variations lead to delays in start / stop response and uneven material accumulation. Third, maintenance is difficult. Zircon sand has high hardness and sharp angular particles, causing severe wear on the equipment's inner walls and spiral blades during conveying. Replacing worn parts in existing conveying mechanisms is difficult, and cleaning accumulated material is cumbersome, severely impacting continuous operation time and maintenance efficiency.

[0004] Therefore, how to develop a material conveying mechanism that integrates conveying, temperature regulation, and screening functions, can achieve adjustable material guiding speed under constant drive speed, and is easy to maintain is a technical problem that needs to be solved. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the existing zircon sand conveying and guiding mechanism has a single function, only having the function of material conveying, and cannot integrate temperature control and screening functions during the conveying process; moreover, the existing conveying mechanism cannot flexibly adjust the internal guiding speed while keeping the drive speed constant; at the same time, the existing mechanism is difficult to maintain in the later stage, and the replacement of worn parts is inconvenient.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a multi-layer follow-up conveying and screening device for zircon sand production, including a horizontal conveying cylinder and a drive motor installed on one side of the horizontal conveying cylinder. The horizontal conveying cylinder is composed of an outer main mounting cylinder and an inner auxiliary adjusting cylinder movably installed inside the outer main mounting cylinder. An internal spiral conveying shaft controlled by the drive motor is set at the center of the inner auxiliary adjusting cylinder. An electrically controlled follow-up control component is provided between the inner auxiliary adjusting cylinder and the outer main mounting cylinder. Several electrically controlled screening modules are installed on the inner auxiliary adjusting cylinder.

[0007] Furthermore, an external feed hopper connected to the interior is provided at the upper part of one end of the external main mounting cylinder, and an external discharge hopper connected to the interior is provided at the lower part of the other end of the external main mounting cylinder.

[0008] Furthermore, the built-in auxiliary regulating cylinder has guide ports at the positions of the electrically controlled screening module, the external feed hopper, and the external discharge hopper.

[0009] Furthermore, a gap is left between the built-in secondary regulating cylinder and the external main mounting cylinder for installing the electrically controlled follow-up control component and the electrically controlled screening module.

[0010] Furthermore, the inner wall of the external main mounting cylinder has several internal support frames for supporting and limiting the built-in secondary adjustment cylinder.

[0011] Furthermore, the electrically controlled follow-up control assembly includes a first follow-up gear and a second follow-up gear fixed on the outer walls of both ends of the built-in secondary adjustment cylinder, a locking gear fixed on the inner wall of the outer main mounting cylinder, a first transverse adjustment gear set and a second transverse adjustment gear set movably mounted on the outer side of the first follow-up gear via a translation adjustment shaft, a control support rod controlling the translation adjustment of the first transverse adjustment gear set and the second transverse adjustment gear set, and a main control gear axially mounted at the connection end between the drive motor and the internal spiral conveyor shaft. The control support rod controls the locking and follow-up state of the built-in secondary adjustment cylinder by adjusting the translation of the first transverse adjustment gear set and the second transverse adjustment gear set through extension and retraction.

[0012] Furthermore, the electronically controlled screening module includes an external adjustment frame that is slidably mounted on the outer side of the built-in secondary adjustment cylinder, a metal screening mesh frame fixed inside the external adjustment frame, and a lateral adjustment support rod for controlling the external adjustment frame. The lateral adjustment support rod adjusts the opening and closing state of the guide port by extending and retracting the external adjustment frame to move horizontally outside the built-in secondary adjustment cylinder.

[0013] Furthermore, the external main mounting cylinder has lateral maintenance ports at both ends, and closed end caps are bolted to the lateral maintenance ports.

[0014] Furthermore, the outer wall of the external main mounting cylinder is provided with several functional openings, and external functional cover plates are bolted to the functional openings.

[0015] Furthermore, the external functional cover can be a bottom screening guide installed on the closed cover, or an electric heating temperature control module can be installed on the closed cover.

[0016] The beneficial effects of this invention are: (1) The present invention adopts a double-layer cylinder structure with an external main mounting cylinder and an internal auxiliary adjusting cylinder. Combined with an electronically controlled follow-up control component, the horizontal adjusting gear group is driven to move to the left or right by controlling the support rod, so as to realize the switching between the locked and follow-up states of the internal auxiliary adjusting cylinder. Under the condition that the speed of the drive motor is constant, the internal spiral conveying shaft and the internal auxiliary adjusting cylinder can be synchronously rotated in opposite directions through gear transmission, so as to flexibly adjust the internal guiding speed and screening efficiency, and avoid the start-stop delay and material accumulation problems caused by frequent speed adjustment.

[0017] (2) By installing an electrically controlled screening module on the built-in auxiliary regulating cylinder and setting metal screening mesh frames with different screen hole sizes at different positions, the present invention realizes the grading and screening function of screening materials one by one along the conveying stroke. Combined with the external functional cover plate, the bottom screening guide tube or electric heating temperature control module can be selectively installed, realizing the integration of conveying, screening and temperature control functions, and reducing the space occupied by the equipment.

[0018] (3) The present invention avoids the flow of zircon sand particles into the gap through the lateral sealing design of the internal support frame, avoids mechanical interference between functional components through the staggered arrangement between the electronically controlled follow-up control component, the electronically controlled screening module and the external discharge hopper, and sets lateral maintenance ports at both ends of the external main mounting cylinder and sets functional openings on the outer wall to facilitate later maintenance and component replacement. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a partial internal schematic diagram of the loading end of the horizontally placed conveyor cylinder in this invention.

[0022] Figure 3 This is a partial internal schematic diagram of the material feeding end of the horizontally placed conveyor cylinder in this invention.

[0023] Figure 4 This is a partial internal schematic diagram of the bottom screen guide tube in this invention.

[0024] Figure 5 This is a partial internal schematic diagram of the location of the electric heating temperature control module in this invention.

[0025] Explanation of reference numerals in the attached drawings: 100. Horizontal conveyor cylinder; 110. External main mounting cylinder; 120. Internal auxiliary adjusting cylinder; 130. Gap; 200. Internal support frame; 210. Material guide port; 220. External adjusting frame; 230. Metal screen frame; 240. Lateral adjusting support rod; 300. Internal spiral conveyor shaft; 310. Electrically controlled follow-up control component; 3201. First follow-up gear; 3202. Second follow-up gear; 330. Locking gear; 340. 1. First lateral adjustment gear set; 340 2. Second lateral adjustment gear set; 350. Control strut; 360. Main control gear; 370. Bottom screening guide tube; 380. Translation control shaft; 400. Electrically controlled screening module; 410. External feed hopper; 420. External discharge hopper; 430. Drive motor; 500. Side maintenance port; 510. Closed end cover; 520. Functional opening; 530. External functional cover plate; 540. Electrically heated temperature control module. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a multi-layer follow-up conveying and screening device for zircon sand production according to the present invention includes a horizontal conveying cylinder 100, which is composed of an outer main mounting cylinder 110 and an inner auxiliary regulating cylinder 120 movably installed inside the outer main mounting cylinder 110. An outer feed hopper 410 communicating with the interior is provided at the upper part of one end of the outer main mounting cylinder 110, and an outer discharge hopper 420 communicating with the interior is provided at the lower part of the other end of the outer main mounting cylinder 110. A gap 130 is left between the inner auxiliary regulating cylinder 120 and the outer main mounting cylinder 110 for installing an electrically controlled follow-up control component 310 and an electrically controlled screening module 400. Zircon sand particles are introduced into the outer main mounting cylinder 110 through the outer feed hopper 410, and then enter the inner auxiliary regulating cylinder 120 through the guide port 210 opened on the inner auxiliary regulating cylinder 120. The inner wall of the external main mounting cylinder 110 has several internal support frames 200. The internal support frames 200 located outside the opening of the feed port 210 not only support and limit the internal auxiliary regulating cylinder 120, but also provide a lateral sealing function for the feed port 210 at this position, preventing zircon sand particles from flowing into the gap 130 from the gap between the feed port 210 and the internal auxiliary regulating cylinder 120.

[0029] like Figure 1 As shown, a drive motor 430 is installed on one side of the horizontal conveying cylinder 100, and an internal spiral conveying shaft 300 controlled by the drive motor 430 is located at the center of the built-in auxiliary regulating cylinder 120. The main shaft of the drive motor 430 is connected to the internal spiral conveying shaft 300 through a main control gear 360. When the drive motor 430 starts, the internal spiral conveying shaft 300 rotates accordingly, spirally pushing the zircon sand material in the built-in auxiliary regulating cylinder 120, realizing the conveying of the material along the axial direction of the horizontal conveying cylinder 100. The zircon sand is discharged from the external discharge hopper 420 on the other side. This is the first operation mode, namely, independent conveying operation.

[0030] When it is necessary to screen the zircon sand during the conveying process, the lateral adjustment support rod 240 installed inside the gap 130 is activated. The lateral adjustment support rod 240 drives the external adjustment frame 220 to move horizontally along the outside of the built-in secondary adjustment cylinder 120, moving the metal screen frame 230 fixed inside the external adjustment frame 220 to the outside of the guide port 210 that was originally closed by the external adjustment frame 220. At this time, the originally closed guide port 210 opens, and the zircon sand in the built-in secondary adjustment cylinder 120 falls into the metal screen frame 230 through the guide port 210 for screening. The screened fine powder material falls downward through the guide port 210 into the bottom screening guide tube 370 on the external functional cover plate 530, and is discharged and collected from the bottom screening guide tube 370. Large particles are intercepted by the metal screen frame 230 and continue to move along the conveying direction with the built-in secondary adjustment cylinder 120. Metal screen frames 230 with different screen hole sizes are set at different positions, enabling the equipment to perform graded screening of materials one by one along the conveying stroke. When the external adjusting frame 220 moves away from the guide port 210, the guide port 210 is closed by the cylinder wall of the built-in secondary adjusting cylinder 120, and the screening function is turned off. This is the second operation mode, namely screening operation.

[0031] When it is necessary to increase the screening effect and conveying efficiency, this is achieved through the electronically controlled follow-up control component 310. For example... Figure 3 As shown, the electrically controlled follow-up control assembly 310 includes a first follow-up gear 3201 and a second follow-up gear 3202 fixed on the outer walls of both ends of the built-in secondary adjustment cylinder 120, a locking gear 330 fixed on the inner wall of the outer main mounting cylinder 110, a first transverse adjustment gear set 3401 and a second transverse adjustment gear set 3402 movably mounted on the outer side of the first follow-up gear 3201 via a translation adjustment shaft 380, a control support rod 350 for controlling the translation adjustment of the first transverse adjustment gear set 3401 and the second transverse adjustment gear set 3402, and a main control gear 360 axially mounted at the connection end between the drive motor 430 and the internal spiral conveying shaft 300. Both the first lateral adjustment gear set 3401 and the second lateral adjustment gear set 3402 consist of multiple meshing gear sets and a gear box located outside the gear sets. A connecting frame is provided at the end of the control strut 350, and the control strut 350 controls the translational movement of the first lateral adjustment gear set 3401 and the second lateral adjustment gear set 3402 through the connecting frame. The first lateral adjustment gear set 3401 and the second lateral adjustment gear set 3402 are synchronously controlled via a translation control shaft 380.

[0032] When the control strut 350 drives the first lateral adjusting gear set 3401 and the second lateral adjusting gear set 3402 to move to the left, the first lateral adjusting gear set 3401 engages with the locking gear 330 on the inner left side of the outer main mounting cylinder 110, and the second lateral adjusting gear set 3402 engages with the second follower gear 3202 at the right end of the built-in auxiliary adjusting cylinder 120. Since the locking gear 330 is fixed to the inner wall of the outer main mounting cylinder 110, the first lateral adjusting gear set 3401 is locked, and the second follower gear 3202, which meshes with the second lateral adjusting gear set 3402, is also locked, thus keeping the built-in auxiliary adjusting cylinder 120 fixed. At this time, only the internal spiral conveying shaft 300 rotates independently under the drive of the drive motor 430 to convey materials, while the built-in auxiliary adjusting cylinder 120 does not rotate. This state results in the highest conveying efficiency.

[0033] When the control strut 350 drives the first lateral adjusting gear set 3401 and the second lateral adjusting gear set 3402 to move to the right, the first lateral adjusting gear set 3401, the first follower gear 3201 at the left end of the built-in auxiliary adjusting cylinder 120, and the second lateral adjusting gear set 3402 simultaneously mesh with the main control gear 360. The main control gear 360 is axially mounted at the connection end between the drive motor 430 and the internal screw conveyor shaft 300, and is driven to rotate by the drive motor 430. Power is transmitted through the main control gear 360 to the first lateral adjusting gear set 3401 and the second lateral adjusting gear set 3402, and then through the first lateral adjusting gear set 3401 to the first follower gear 3201 at the left end, thereby driving the built-in auxiliary adjusting cylinder 120 to rotate. Since the first lateral adjusting gear set 3401 and the second lateral adjusting gear set 3402 are composed of multiple meshing gear sets, the gear transmission action of the gear sets enables the internal screw conveyor shaft 300 and the built-in auxiliary adjusting cylinder 120 to achieve synchronous reverse rotation. When the built-in auxiliary regulating cylinder 120 rotates in the opposite direction to the internal spiral conveying shaft 300, the material generates a stronger tumbling and mixing effect in the cylinder, which improves both screening efficiency and conveying efficiency. This is the third operating mode, namely follow-up compound operation.

[0034] It should be noted that the electrically controlled follow-up control component 310, the electrically controlled screening module 400, and the external discharge hopper 420 are staggered in their installation positions. That is, the three are staggered along the axial direction of the transverse conveyor cylinder 100 to avoid mechanical interference between them. Specifically, the electrically controlled screening module 400 is installed between the external feed hopper 410 and the electrically controlled follow-up control component 310, while the electrically controlled follow-up control component 310 is installed at both ends of the built-in secondary regulating cylinder 120, and the external discharge hopper 420 is located at the other end away from the electrically controlled follow-up control component 310, thereby ensuring that each functional component does not interfere with each other when working independently.

[0035] The external main mounting cylinder 110 has lateral maintenance ports 500 at both ends, and closed end caps 510 are bolted to the lateral maintenance ports 500. Several functional openings 520 are provided on the outer wall of the external main mounting cylinder 110, and external functional cover plates 530 are bolted to the functional openings 520. The external functional cover plate 530 can be a bottom screening guide 370 installed on the closed cover plate, used to guide the fine powder material screened by the metal screen frame 230 to an external collection device; alternatively, the external functional cover plate 530 can be an electric heating temperature control module 540 installed on the closed cover plate. The electric heating temperature control module 540 includes an electric heating tube and a temperature sensor, used to heat and insulate or dry the zircon sand material inside the horizontal conveying cylinder 100. The temperature sensor monitors the temperature inside the cylinder in real time and feeds the signal back to the external controller, which automatically adjusts the heating power of the electric heating tube according to preset temperature parameters.

[0036] By combining the above three operating methods, the present invention achieves simultaneous screening and temperature adjustment during the conveying of zircon sand, and can flexibly adjust the guiding speed under a constant drive speed. At the same time, the design of the side maintenance port 500 and the functional opening 520 facilitates later maintenance and component replacement.

[0037] 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 multi-layer follow-up conveying and screening device for zircon sand production, comprising a horizontal conveying cylinder (100) and a drive motor (430) installed on one side of the horizontal conveying cylinder (100), characterized in that: The horizontal conveying cylinder (100) consists of an external main mounting cylinder (110) and an internal auxiliary regulating cylinder (120) movably installed inside the external main mounting cylinder (110). An internal spiral conveying shaft (300) controlled by a drive motor (430) is provided at the center of the internal auxiliary regulating cylinder (120). An electrically controlled follow-up control component (310) is provided between the internal auxiliary regulating cylinder (120) and the external main mounting cylinder (110). Several electrically controlled screening modules (400) are installed on the internal auxiliary regulating cylinder (120). The upper part of one end of the external main mounting cylinder (110) is provided with an external feed hopper (410) that communicates with the interior, and the lower part of the other end of the external main mounting cylinder (110) is provided with an external discharge hopper (420) that communicates with the interior. The built-in auxiliary regulating cylinder (120) is provided with a guide port (210) at the positions of the electronically controlled screening module (400), the external feeding hopper (410) and the external discharging hopper (420). The electrically controlled follow-up control assembly (310) includes a first follower gear (3201) and a second follower gear (3202) fixed on the outer walls of both ends of the built-in secondary adjustment cylinder (120), a locking gear (330) fixed on the inner wall of the outer main mounting cylinder (110), and a first lateral adjustment gear set (3401) movably mounted on the outside of the first follower gear (3201) and a second lateral adjustment gear set on the outside of the second follower gear (3202) via a translation adjustment shaft (380). 3402), control rod (350) for controlling the translation of the first transverse adjustment gear set (3401) and the second transverse adjustment gear set (3402) and main control gear (360) axially installed at the connection end between the drive motor (430) and the internal screw conveyor shaft (300). The control rod (350) controls the locking and following state of the built-in auxiliary adjustment cylinder (120) by adjusting the translation of the first transverse adjustment gear set (3401) and the second transverse adjustment gear set (3402) through extension and retraction. The electrically controlled screening module (400) includes an external adjustment frame (220) that is slidably fitted on the outer side of the built-in secondary adjustment cylinder (120), a metal screening mesh frame (230) fixed inside the external adjustment frame (220), and a lateral adjustment support rod (240) for controlling the external adjustment frame (220). The lateral adjustment support rod (240) adjusts the opening and closing state of the guide port (210) by extending and retracting the external adjustment frame (220) to move horizontally outside the built-in secondary adjustment cylinder (120).

2. The multi-layer follow-up conveying and screening device for zircon sand production according to claim 1, characterized in that: A gap (130) is left between the built-in secondary regulating cylinder (120) and the external main mounting cylinder (110) for installing the electronically controlled follow-up control component (310) and the electronically controlled screening module (400).

3. The multi-layer follow-up conveying and screening device for zircon sand production according to claim 1, characterized in that: The inner wall of the external main mounting cylinder (110) has several internal support frames (200) for supporting the internal auxiliary adjusting cylinder (120) for limiting.

4. The multi-layer follow-up conveying and screening device for zircon sand production according to claim 1, characterized in that: The external main mounting cylinder (110) has lateral maintenance ports (500) at both ends, and a closed end cap (510) is bolted to the lateral maintenance port (500).

5. A multi-layer follow-up conveying and screening device for zircon sand production according to claim 1, characterized in that: The outer wall of the external main mounting cylinder (110) is provided with several functional openings (520), and an external functional cover plate (530) is bolted to the functional openings (520).

6. A multi-layer follow-up conveying and screening device for zircon sand production according to claim 5, characterized in that: The external functional cover plate (530) is either a bottom screening guide tube (370) installed on the closed cover plate, or an electric heating temperature control module (540) installed on the closed cover plate.

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