Automatic spherical particle forming system

Abstract

The invention provides an automatic spherical particle forming system which comprises a material supply unit, a forming unit, a forming control unit and an on-line moisture detector, the material supply unit is used for continuously supplying materials to the forming unit, and the on-line moisture detector is used for detecting moisture of semi-finished products output by the forming unit; the forming control unit is used for receiving a detection result of the online moisture detector and controlling the spraying amount of the wetting agent in the forming unit according to the detection result. The material supply unit continuously supplies materials to the forming unit, the online moisture detector detects the moisture of the semi-finished product output by the forming unit, and the forming control unit receives the detection result of the online moisture detector and timely corrects the spraying amount of the wetting agent in the forming unit according to the detection result. And the consistency of the moisture content of the produced green pellets is ensured.

Description

Technical Field

[0001] This application belongs to the technical field of manufacturing equipment for spherical particles, and more specifically, relates to an automated spherical particle forming system. Background Art

[0002] The traditional production method of molecular sieve is to borrow the sugar coating machine for granulation in pharmaceutical enterprises or other rotating drums with the same principle. When producing molecular sieve, one person operates one sugar coating pan, manually feeding, discharging, and spraying for wetting. The production efficiency is low and the quality is uneven, resulting in high production costs.

[0003] The invention patent with the publication number CN111939838B discloses "an automated particle ball forming system", which can realize automated production and no longer rely on manual labor. However, its feeding method is an electric hoist and a hopper, with poor scalability and combination; the metering of powder and seeds is not accurate enough, prone to metering deviation, and the uniformity of feeding speed is also poor. The dryness and humidity of the produced particles require manual intervention.

[0004] In view of this, there is an urgent need for an automated spherical particle forming system that can solve the above problems. Summary of the Invention

[0005] To achieve the above object, the technical solution adopted in this application is: to provide an automated spherical particle forming system, including a material supply unit, a forming unit, a forming control unit, and an on-line moisture detector. The material supply unit is used to continuously supply materials to the forming unit. The on-line moisture detector is used to detect the moisture of the semi-finished products output by the forming unit. The forming control unit receives the detection results of the on-line moisture detector and controls the spraying amount of the wetting agent in the forming unit according to the detection results.

[0006] Optionally, the material supply unit includes a powder tube chain conveyor and a granular bucket conveyor arranged in sequence. The discharging ports of the powder tube chain conveyor and the granular bucket conveyor are aligned with the feeding port of the forming unit.

[0007] Optionally, the forming unit includes a powder weighing and metering bin, a seed weighing and metering bin, a variable frequency speed regulation automated ball forming machine, and an auxiliary robot. Weighing sensors are arranged on both the powder weighing and metering bin and the seed weighing and metering bin. The weighing sensors are connected to the forming control unit. A powder star-shaped variable frequency discharging valve is arranged at the bottom of the powder weighing and metering bin, and a seed star-shaped variable frequency discharging valve is arranged at the bottom of the seed weighing and metering bin. The discharging ports of the powder star-shaped variable frequency discharging valve and the seed star-shaped variable frequency discharging valve are located above the variable frequency speed regulation automated ball forming machine. The auxiliary robot is connected to the forming control unit and is used to stir the materials in the variable frequency speed regulation automated ball forming machine.

[0008] Optionally, the powder star variable frequency feeding valve is connected to a first chute, the seed star variable frequency feeding valve is connected to a second chute, the second chute is connected to the first chute through a corrugated pipe, and the feeding port of the first chute is located above the variable frequency speed regulation automatic pelletizing machine.

[0009] Optionally, air disc for breaking arch are provided on the powder weighing and metering bin and the seed weighing and metering bin.

[0010] Optionally, the forming unit further includes a metering and spraying assembly, the metering and spraying assembly includes a water pipe and a ball valve, a filter, an electromagnetic valve, a flow sensor and a spraying assembly arranged on the water pipe, and the flow sensor and the electromagnetic valve are connected to the forming control unit.

[0011] Optionally, the variable frequency speed regulation automatic pelletizing machine includes a rotating drum and a variable frequency pitching mechanism, the variable frequency pitching mechanism is connected to the forming control unit, the variable frequency pitching mechanism is used to keep the rotating drum in the maximum load rolling ball state during production and slowly pitch down according to the program to throw out qualified spherical particles, and the spraying assembly is connected to the variable frequency pitching mechanism to keep the distance of the sprayed liquid consistent.

[0012] Optionally, a conveyor belt is arranged at the discharging end of the forming unit, the on-line moisture detector is arranged on the conveyor belt, and the conveyor belt is connected to the forming control unit.

[0013] Optionally, it further includes an enclosed and transparent operation room, the automatic spherical particle forming system is located in the operation room, a dust removal system and a camera are arranged in the operation room, and a proximity alarm permission identification device is arranged at the entrance of the operation room.

[0014] Optionally, the forming control unit includes a PLC integrated control cabinet and a PLC touch screen connected thereto.

[0015] The beneficial effects of the automatic spherical particle forming system provided by this application are as follows: Compared with the prior art, in this application, the material supply unit continuously supplies materials to the forming unit, the on-line moisture detector detects the moisture of the semi-finished products output by the forming unit, the forming control unit receives the detection results of the on-line moisture detector, and timely corrects the spraying amount of the wetting agent in the forming unit according to the detection results. This ensures the consistency of the moisture content of the produced green balls. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of the automated spherical particle forming system provided by the embodiment of the present application;

[0018] Figure 2 It is a schematic structural diagram of the powder weighing and metering bin and the seed weighing and metering bin provided by the embodiment of the present application;

[0019] Figure 3 It is a schematic structural diagram of the variable-frequency speed-regulating automated pelletizing machine and the metering spraying assembly provided by the embodiment of the present application;

[0020] Figure 4 It is a schematic structural diagram of the workroom provided by the embodiment of the present application;

[0021] Among them, the reference numerals in the drawings:

[0022] 1. Powder weighing and metering bin; 2. Seed weighing and metering bin; 3. Weighing sensor; 4. Arch-breaking air disc; 5. Powder star-shaped variable-frequency feeding valve; 6. Seed star-shaped variable-frequency feeding valve; 7. First chute; 8. Second chute; 9. Bellows; 10. Rotary drum; 11. Spraying assembly; 12. Flow sensor; 13. Solenoid valve; 14. Filter; 15. Ball valve; 16. Metering spraying assembly; 17. Variable-frequency pitching mechanism; 18. Auxiliary robot; 19. On-line moisture detector; 20. Conveyor belt; 21. Camera; 22. Proximity alarm permission identification device. Detailed implementation manners

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0027] Please refer to Figures 1-4 together, and now an automated spherical particle forming system provided by an embodiment of the present application will be described.

[0028] An automated spherical particle forming system includes a material supply unit, a forming unit, a forming control unit, and an on-line moisture detector 19. The material supply unit is used to continuously supply materials to the forming unit. The on-line moisture detector 19 is used to detect the moisture of the semi-finished products output by the forming unit. The forming control unit receives the detection results of the on-line moisture detector 19 and controls the spraying amount of the wetting agent in the forming unit according to the detection results.

[0029] In the present application, the material supply unit continuously supplies materials to the forming unit. The on-line moisture detector 19 detects the moisture of the semi-finished products output by the forming unit. The forming control unit receives the detection results of the on-line moisture detector 19 and timely corrects the spraying amount of the wetting agent in the forming unit according to the detection results, ensuring the consistency of the moisture content of the green balls produced.

[0030] In some embodiments of the present application, the material supply unit includes a powder tube chain conveyor (not shown in the figure) and a granular bucket conveyor (not shown in the figure) arranged in sequence. The discharging ports of the powder chain conveyor and the granular bucket conveyor are aligned with the feeding port of the forming unit. By using the tube chain conveyor and the bucket conveyor to transport powders and seeds, large-scale production applications can be achieved.

[0031] In some embodiments of the present application, the forming control unit includes a PLC integrated control cabinet and a PLC touch screen connected thereto.

[0032] In some embodiments of the present application, the forming unit includes a powder weighing and metering bin 1, a seed weighing and metering bin 2, a variable frequency speed regulation automatic pelletizing machine, and an auxiliary robot 18. Weighing sensors 3 are provided on both the powder weighing and metering bin 1 and the seed weighing and metering bin 2. The weighing sensors 3 are connected to the forming control unit. A powder star-shaped variable frequency feeding valve 5 is provided at the bottom of the powder weighing bin 1, and a seed star-shaped variable frequency feeding valve 6 is provided at the bottom of the seed weighing and metering bin 2. The feeding ports of the powder star-shaped variable frequency feeding valve 5 and the seed star-shaped variable frequency feeding valve 6 are located above the variable frequency speed regulation automatic pelletizing machine. The auxiliary robot 18 is connected to the forming control unit and is used to stir the materials in the variable frequency speed regulation automatic pelletizing machine.

[0033] The weighing sensors 3 can accurately measure the materials in the powder weighing and metering bin 1 and the seed weighing and metering bin 2, so as to monitor the remaining amount of the internal materials. The weighing sensors 3 are provided with high and low material weight signal feedbacks and are connected to the PLC integrated control cabinet. The bin weight information is processed by the PLC integrated control cabinet. The PLC integrated control cabinet is connected to the tube chain conveyor to control the tube chain conveyor to transport materials to the powder weighing and metering bin 1 and the seed weighing and metering bin 2 or stop feeding, so as to achieve automatic feeding. The powder weighing and metering bin 1 evenly feeds materials into the variable frequency speed regulation automatic pelletizing machine through the powder star-shaped variable frequency feeding valve 5, and the seed weighing and metering bin 2 evenly feeds materials into the variable frequency speed regulation automatic pelletizing machine through the seed star-shaped variable frequency feeding valve 6. The auxiliary robot 18 stirs the materials in the variable frequency speed regulation automatic pelletizing machine to quickly disperse the materials.

[0034] In some embodiments of the present application, the powder star-shaped variable frequency feeding valve 5 is connected to a first chute 7, and the seed star-shaped variable frequency feeding valve 6 is connected to a second chute 8. The second chute 8 is connected to the first chute 7 through a corrugated pipe 9. The feeding port of the first chute 7 is located above the variable frequency speed regulation automatic pelletizing machine.

[0035] The corrugated pipe 9 can isolate the force transmission between the powder weighing and metering bin 1 and the seed weighing and metering bin 2, and avoid the problem of inaccurate metering caused by the entanglement of the two chutes.

[0036] In some embodiments of the present application, arch-breaking air discs 4 are provided on the powder weighing and metering bin 1 and the seed weighing and metering bin 2. The arch-breaking air discs 4 can prevent the problems of bridging and blockage of powders and particles in narrow channels.

[0037] In some embodiments of the present application, the forming unit further includes a metering spraying assembly 16. The metering spraying assembly 16 includes a water pipe and a ball valve 15, a filter 14, a solenoid valve 13, a flow sensor 12, and a spraying assembly 11 provided on the water pipe. The flow sensor 12 and the solenoid valve 13 are connected to the forming control unit. Specifically, the flow sensor 12 and the solenoid valve 13 are connected to the PLC integrated control cabinet.

[0038] The flow of the wetting agent can be monitored in real time through the flow sensor 12, and the opening and closing of the pipeline can be controlled through the solenoid valve 13. When the PLC integrated control cabinet receives the detection result of the on-line moisture detector 19, if there is a deviation between the moisture content and the standard value, the PLC integrated control cabinet timely corrects the spraying amount of the wetting agent in the metering spraying assembly 16 to ensure the consistency of the moisture content of the produced green balls.

[0039] In some embodiments of the present application, the variable-frequency speed-regulating automatic pelletizing machine includes a drum and a variable-frequency pitching mechanism. The variable-frequency pitching mechanism is connected to the PLC integrated control cabinet. The variable-frequency pitching mechanism can automatically maintain the maximum load of the rolling balls with the drum raised during production according to the PLC program, and slowly lower the drum according to the PLC program to eject qualified spherical particles. The spraying assembly is connected to the variable-frequency pitching mechanism to keep the distance of the sprayed liquid consistent.

[0040] The angle of the drum 10 can be adjusted through the variable-frequency pitching mechanism 17, and the spraying assembly 11 can move together with the variable-frequency pitching mechanism 17, so that the spraying assembly 11 always sprays the wetting agent into the drum 10.

[0041] In some embodiments of the present application, a conveyor belt 20 is provided at the discharging end of the forming unit. The on-line moisture detector 19 is provided on the conveyor belt 20, and the conveyor belt 20 is connected to the forming control unit.

[0042] The semi-finished products produced by the forming unit fall on the conveyor belt 20. During the conveying process, the on-line moisture detector 19 can detect the moisture content of the passing semi-finished products. And transmit the moisture content detection result to the PLC integrated control cabinet, integrating the automatic program, local + remote linkage control, which not only reduces the burden of monitoring and adjustment, but also the product quality is very stable and the efficiency is higher.

[0043] In some embodiments of the present application, it further includes an enclosed and transparent operation room. The automatic spherical particle forming system is located in the operation room. A dust removal system and a camera 21 are provided in the operation room, and an access warning permission identification device 22 is provided at the entrance of the operation room.

[0044] The operation room is an enclosed space surrounded by columns, panel walls, glass walls, sliding glass doors and platforms, and is equipped with a dust removal unit. By installing operating equipment, robots and belt conveyors in the operation room, it can ensure that users operate in a clean environment. The operation environment is equipped with a high-definition surveillance camera 21 and a proximity alarm permission recognition device 22 for technicians and operators to observe the ball forming situation and maintenance requirements in real time.

[0045] Working principle:

[0046] Both the powder weighing and metering bin 1 and the seed weighing and metering bin 2 are provided with weighing sensors 3, and are connected to the PLC integrated control cabinet with high and low material weight signal feedback. The weight information of the bins is processed by the PLC to command the conveyor to transport materials to the powder and seed bins or stop feeding;

[0047] After the variable-frequency speed-regulating automatic ball forming machine rotates at the working inclination angle, the first step: under the control of the PLC program, the metering spraying assembly 16 starts to spray the wetting agent into the granular material in the ball forming machine drum 10 according to the set liquid spraying amount. At the same time, the auxiliary robot 18 enters the drum 10 to stir, accelerating the dispersion and absorption of the wetting agent by the granules in the drum 10 and adding moisture; the second step: with the stirring of the auxiliary robot 18, the powder slowly drops into the ball forming drum 10 through the star-shaped variable-frequency feeding valve and the arch-breaking air disc 4 (to increase the fluidity of the powder), and is quickly dispersed by the robot stirring, so that the already wetted granules adhere to the powder, and the granules are further enlarged during the tumbling and extrusion; the third step: the auxiliary robot 18 exits, and the granules in the drum 10 rotate and tumble empty, and are polished for a short time. There is no trace of powder visible on the granules in the drum 10, and then the drum 10 slowly tilts downwards according to the program by the variable-frequency pitching mechanism 17. The large granules with greater potential energy during the tumbling are thrown out of the drum 10 by the centrifugal force of the drum 10 and enter the next process along with the belt conveyor. When the granules pass through the on-line moisture detector 19 on the belt conveyor, the moisture content signal of the granules is returned to the PLC for processing, and the PLC controls the metering spraying assembly 16 to automatically adjust the wetting agent spraying amount to ensure the dryness and humidity of the granular semi-finished products. The fourth step: when the granule discharging is completed, the PLC controls the variable-frequency pitching mechanism 17 to slowly raise the drum 10, and at the same time starts to add seeds to the ball forming machine drum 10 quantitatively according to the program, and the process of converting the powder into the required granules is completed.

[0048] At this time, the forming step returns to the first step of the working procedure to manufacture spherical granules in a cycle. The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automated spherical particle forming system, characterized in that: It includes a material supply unit, a molding unit, a molding control unit and an online moisture detector. The material supply unit is used to continuously supply materials to the molding unit. The online moisture detector is used to detect the moisture content of the semi-finished product output by the molding unit. The molding control unit receives the detection result of the online moisture detector and controls the spraying amount of the wetting agent in the molding unit according to the detection result.

2. The automated spherical particle forming system according to claim 1, characterized in that: The material supply unit comprises a powder tube chain conveyor and a particle bucket conveyor which are arranged in sequence, and the unloading ports of the powder tube chain conveyor and the particle bucket conveyor are aligned with the loading port of the molding unit.

3. The automated spherical particle forming system according to claim 1, characterized in that: The molding unit includes a powder weighing and metering silo, a seed weighing and metering silo, a variable frequency speed regulating automated ball forming machine and an auxiliary robot. The powder weighing and metering silo and the seed weighing and metering silo are both provided with weighing sensors, and the weighing sensors are connected to the molding control unit. A powder star-shaped variable frequency discharge valve is provided at the bottom of the powder weighing and metering silo, and a seed star-shaped variable frequency discharge valve is provided at the bottom of the seed weighing and metering silo. The discharge ports of the powder star-shaped variable frequency discharge valve and the seed star-shaped variable frequency discharge valve are located above the variable frequency speed regulating automated ball forming machine, and are connected to the variable frequency speed regulating automated ball forming machine through their respective chutes; the auxiliary robot is connected to the molding control unit, and is used to stir the materials in the variable frequency speed regulating automated ball forming machine.

4. The automated spherical particle forming system according to claim 3, characterized in that: The powder star-shaped variable frequency discharge valve is connected to a first slide pipe, and the seed star-shaped variable frequency discharge valve is connected to a second slide pipe. The second slide pipe is connected to the first slide pipe through a bellows, and the discharge port of the first slide pipe is located above the variable frequency speed regulation automated ball forming machine.

5. The automated spherical particle forming system according to claim 3, characterized in that: The powder weighing and metering silo and the seed weighing and metering silo are provided with arch-breaking air discs.

6. The automated spherical particle forming system according to claim 3, characterized in that: The molding unit further comprises a metering spray assembly, which comprises a water pipe and a ball valve, a filter, a solenoid valve, a flow sensor and a spray assembly arranged on the water pipe. The flow sensor and the solenoid valve are connected to the molding control unit.

7. The automated spherical particle forming system according to claim 6, characterized in that: The variable frequency speed regulation automated ball forming machine includes a rotating drum and a variable frequency pitch mechanism, which is connected to the forming control unit. The variable frequency pitch mechanism is used to keep the rotating drum tilted up to roll the ball at the maximum load during production, and slowly tilt it down according to the program to throw out qualified spherical particles. The spraying assembly is connected to the variable frequency pitch mechanism to keep the distance of spraying liquid consistent.

8. The automated spherical particle forming system according to claim 1, characterized in that: A conveyor belt is provided at the unloading end of the molding unit, the online moisture detector is arranged on the conveyor belt, and the conveyor belt is connected to the molding control unit.

9. The automated spherical particle forming system according to claim 1, characterized in that: It also includes a closed and transparent operating room, the automated spherical particle forming system is located in the operating room, a dust removal system and a camera are provided in the operating room, and a proximity alarm authority identification device is provided at the entrance of the operating room.

10. The automated spherical particle forming system according to claim 1, characterized in that: The molding control unit includes a PLC integrated control cabinet and a PLC touch screen connected thereto.

Images