An intelligent drying system and process for blasting beads

Abstract

The application discloses a kind of explosion bead intelligent drying systems and process, explosion bead intelligent drying system includes rotating cage component, including the rotating cage body that can rotate about its axis, the inside of rotating cage body has the cavity for accommodating explosion bead;Heat pump unit is used to provide hot air to the inside of rotating cage body, and heat pump unit has with the air outlet and return air opening of the inside cavity of rotating cage body communication;First temperature and humidity detection module is used to detect the temperature and humidity of gas output in the inside of rotating cage body;Second temperature detection module is used to detect the temperature of explosion bead in the inside of rotating cage body;Third temperature and humidity detection module is used to detect the temperature and humidity of gas output of heat pump unit;Control module is used to receive the data output of first temperature and humidity detection module, second temperature detection module and third temperature and humidity detection module and according to the data output of each detection module controls the operation of heat pump unit to adjust the temperature and humidity of gas output of heat pump unit.This scheme can improve the drying quality of explosion bead, guarantee that drying process is carried out smoothly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of explosion beads production, in particular to an intelligent explosion bead drying system and process. BACKGROUND

[0002] With the popularization of cigarette products and the development of technology, explosion bead cigarette products have developed rapidly in recent years. Explosion beads, also known as aromatic pills, brittle capsules, and beads, can be large or small, with a diameter generally between 2.6-4.6 mm, and are squeezable beads that have a popping sensation when squeezed. Explosion bead cigarette products are mainly implanted into cigarette filters through filter rod embedding bead technology, and when the smoker squeezes the capsule during smoking, the built-in liquid essence flavor is mixed into the filter fibers, increasing the humidity of the smoke and improving the aroma retention effect of the filter, making the taste of the cigarette richer and more fragrant, so that the smoker has a more comfortable smoking experience.

[0003] During the late stage of explosion bead production, drying is required to achieve the purposes of setting, easy storage, etc. At present, some enterprises use some devices that are simply modified from traditional drying equipment to dry explosion beads. However, these devices have low automation degree and long drying time, which reduces production efficiency. SUMMARY

[0004] The present application aims to solve the problem of low automation degree, long drying time, and low production efficiency of the current equipment. The present application provides an intelligent explosion bead drying system that can adjust the explosion bead drying process, improve the explosion bead drying efficiency, ensure the smooth progress of the explosion bead drying process, and improve the drying quality of the explosion beads.

[0005] To solve the above technical problems, an embodiment of the present application discloses an intelligent explosion bead drying system, comprising:

[0006] A rotating cage assembly, comprising a rotating cage body that can rotate around its own axis, the rotating cage body having a cavity inside for accommodating explosion beads;

[0007] A heat pump unit for providing hot air to the inside of the rotating cage body, the heat pump unit having an air outlet and an air return port in communication with the cavity inside the rotating cage body, wherein the air outlet is used to output the hot air provided by the heat pump unit to the rotating cage body, and the air return port is used to receive the gas output by the rotating cage body;

[0008] A first temperature and humidity detection module is arranged near the air return port of the heat pump unit and is used to detect the temperature and humidity of the gas output from the inside of the rotating cage body;

[0009] A second temperature detection module is arranged in the rotating cage body and is used to detect the temperature of the explosion beads in the rotating cage body;

[0010] A third temperature and humidity detection module is arranged at the air outlet of the heat pump unit, and is used for detecting the temperature and humidity of the air output by the heat pump unit.

[0011] A control module is electrically connected with the first temperature and humidity detection module, the second temperature detection module and the third temperature and humidity detection module, and is used for receiving the data output by the first temperature and humidity detection module, the second temperature detection module and the third temperature and humidity detection module, and controlling the operation of the heat pump unit according to the data output by each detection module to adjust the temperature and humidity of the air output by the heat pump unit.

[0012] By using the heat pump unit to input the hot air with suitable temperature and humidity into the rotating cage for drying the blasting beads, the drying efficiency of the blasting beads can be improved, and the drying degree of the blasting beads can be easily controlled, and the quality of the finished blasting beads is improved. Furthermore, the temperature of the blasting beads in the rotating cage, the outlet air temperature and humidity of the heat pump unit and the return air temperature and humidity are detected, and the operation of the heat pump unit is adjusted according to the data such as the outlet air temperature and humidity of the heat pump unit and the return air temperature and humidity, so that more favorable conditions are provided for the drying of the blasting beads.

[0013] According to another specific embodiment of the present application, the inner side wall of the rotating cage is provided with a discharging guide plate and a plurality of scoops; the discharging guide plate is arc-shaped and extends from the feeding end of the rotating cage to the discharging end of the rotating cage; the angle between the extension direction of each scoop and the plane in which the discharging end of the rotating cage is located in the first direction is an acute angle; and the discharging guide plate and the scoops are oppositely inclined with respect to the reference plane passing through the axis of the rotating cage.

[0014] According to another specific embodiment of the present application, a photoelectric detection switch is arranged directly below the lowest point of the rotating cage, and the photoelectric detection switch is connected with the control module; the outer side wall of the rotating cage is provided with a triggering part, and the triggering part corresponds to the position of the second temperature detection module; when the triggering part rotates to the bottom end of the rotating cage, the triggering part triggers the photoelectric detection switch, and the triggered photoelectric detection switch sends a signal to the control module to make the control module control the second temperature detection module to collect the temperature of the blasting beads in the cavity.

[0015] According to another specific embodiment of the present application, the second temperature detection module is arranged close to the discharging end of the rotating cage, and the distance between the second temperature detection module and the inner side wall of the rotating cage is 10-15 mm.

[0016] According to another specific embodiment of the present application, the discharging end of the rotating cage is provided with a discharging cover plate, the discharging cover plate is provided with a discharging port, and the rotating cage assembly further comprises:

[0017] A shielding part is movably arranged on the inner side wall of the discharging cover plate.

[0018] The driving part is connected with the shielding part, and is electrically connected with the control module, and is used for driving the shielding part to move to cover or expose the material port under the control of the control module.

[0019] Correspondingly, an embodiment of the present application also provides a drying process of the explosion beads based on the above explosion bead intelligent drying system, which comprises the following steps:

[0020] The setting step is that: the explosion beads to be dried are added into the rotating cage; the rotating cage and the heat pump unit are started; and the air outlet temperature and the air outlet humidity of the heat pump unit are set as a first temperature value and a first humidity value respectively;

[0021] The preheating step is that: the second temperature detection module detects the temperature of the surface of the explosion beads to be dried in the rotating cage and outputs the collected data to the control module; the third temperature and humidity detection module detects the temperature and humidity of the gas output by the heat pump unit and outputs the collected data to the control module; the control module calculates the temperature difference value between the temperature data of the second temperature detection module and the temperature data of the third temperature and humidity detection module according to the received data, and adjusts the operation state of the heat pump unit according to the temperature difference value, until the temperature difference value is located in the range of 0-2℃, and the next step is executed;

[0022] The drying step is that: the control module re-sets the air outlet temperature and the air outlet humidity of the heat pump unit as the first temperature value and the first humidity value; during the drying process of the explosion beads, the first temperature and humidity detection module and the third temperature and humidity detection module detect the temperature and humidity of the gas at the air outlet and the air return port of the heat pump unit in real time, and output the detected data to the control module in real time; the control module calculates the absolute moisture content at the air outlet and the air return port according to the detection data of the first temperature and humidity detection module and the third temperature and humidity detection module respectively, until the absolute moisture content at the air outlet and the absolute moisture content at the air return port match, and the next step is executed;

[0023] The balancing step is that: the control module sets the air outlet temperature and the air outlet humidity of the heat pump unit as a second temperature value and a second humidity value respectively, the second temperature value is less than the first temperature value and the second humidity value is greater than the first humidity value, so that the explosion beads are slowly cooled in the rotating cage; after a preset time is reached, the control module controls the rotating cage to stop rotating and controls the heat pump unit to be turned off, so that the explosion beads are output from the rotating cage.

[0024] According to another specific embodiment of the present application, in the preheating step, adjusting the operation state of the heat pump unit according to the temperature difference value comprises:

[0025] If the temperature difference value is greater than 10℃, the control module sets the outlet air temperature of the heat pump unit to the first temperature value + 8℃; if the temperature difference value is between 5-10℃, the control module sets the outlet air temperature of the heat pump unit to the first temperature value + 5℃; if the temperature difference value is greater than 2℃ and less than 5℃, the control module sets the outlet air temperature of the heat pump unit to the first temperature value + 2℃.

[0026] According to another specific embodiment of the present application, the first temperature value is 40℃, the first humidity value is 30%, the second temperature value is 25℃, and the second humidity value is 60%.

[0027] According to another specific embodiment of the present application, when the absolute difference between the absolute moisture content at the outlet air port and the absolute moisture content at the return air port and the ratio of the absolute moisture content at the outlet air port are less than or equal to 5%, it is considered that the absolute moisture content at the outlet air port and the absolute moisture content at the return air port match.

[0028] According to another specific embodiment of the present application, the preset time is 2-10min. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 A perspective view showing the intelligent drying system for blasting beads provided by an embodiment of the present application Figure 1 ;

[0030] Figure 2 A perspective view showing the intelligent drying system for blasting beads provided by an embodiment of the present application Figure 2 ;

[0031] Figure 3 A perspective view showing the intelligent drying system for blasting beads provided by an embodiment of the present application

[0032] Figure 4 A perspective view showing the intelligent drying system for blasting beads provided by an embodiment of the present application Figure 1 ;

[0033] Figure 2 A perspective view showing the intelligent drying system for blasting beads provided by an embodiment of the present application Figure 6 ;

[0034] Figure 7 A perspective view showing the intelligent drying system for blasting beads provided by an embodiment of the present application

[0035] Figure 1 A structural block diagram of the intelligent drying system for blasting beads provided by an embodiment of the present application. DETAILED DESCRIPTION

[0036] The following detailed description together with the accompanying drawings will provide a fuller understanding of the application. Although the application is described in connection with the preferred embodiments, the application is not intended to be limited to the preferred embodiments. On the contrary, the intent is to cover all alternatives, modifications, and equivalents as can be included within the scope of the application as defined by the appended claims. Many modifications and variations of the application described herein will be apparent to those of ordinary skill in the art from the description and illustrations. It is intended that all such modifications and variations come within the scope of the application. For instance, the described embodiments can be used in any combination. Therefore, it is intended that the application not be limited to the preferred embodiments disclosed for not only enhancing the understanding of the application, but also to be used as a generic description of the application.

[0037] It should be noted that in this specification and the accompanying drawings, similar reference numerals and letters indicate similar items, and thus once an item is defined in one drawing, it is not necessary to further define and explain it in subsequent drawings.

[0038] In the description of the present embodiments, it should be noted that the terms "upper", "bottom", "inner", "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0039] The terms "first", "second", etc. are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present embodiments, it should also be noted that unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present embodiments can be understood according to the specific circumstances.

[0041] To make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0042] As Figure 3 , Figure 7 and Figure 6As shown, one embodiment of the present application provides a smart drying system for blasting beads, which comprises a rotating cage assembly, a heat pump unit 100, a control module 300, and a first temperature and humidity detection module 400, a second temperature detection module 500, and a third temperature and humidity detection module 600 electrically connected to the control module 300 respectively.

[0043] The rotating cage assembly comprises a rotating cage body 1 which can rotate around its own axis and has a cavity inside for accommodating blasting beads. The heat pump unit 100 is used to provide hot air to the inside of the rotating cage body 1. The heat pump unit 100 has an air outlet and an air return connected to the cavity inside the rotating cage body 1. The air outlet is used to output the hot air provided by the heat pump unit 100 to the rotating cage body 1, and the air return is used to receive the gas output by the rotating cage body 1. The first temperature and humidity detection module 400 is arranged near the air return of the heat pump unit 100 and is used to detect the temperature and humidity (hereinafter referred to as temperature and humidity) of the gas output by the rotating cage body 1. The second temperature detection module 500 is arranged in the rotating cage body 1 and is used to detect the temperature of the blasting beads in the rotating cage body 1. The third temperature and humidity detection module 600 is arranged at the air outlet of the heat pump unit 100 and is used to detect the temperature and humidity of the gas output by the heat pump unit 100. The control module 300 is electrically connected to the first temperature and humidity detection module 400, the second temperature detection module 500, and the third temperature and humidity detection module 600 respectively, and is used to receive the data output by the first temperature and humidity detection module 400, the second temperature detection module 500, and the third temperature and humidity detection module 600, and to control the operation of the heat pump unit 100 according to the data output by each detection module respectively to adjust the temperature and humidity of the gas output by the heat pump unit 100.

[0044] In the prior art, natural wind is generally used to dry the blasting beads in the rotating cage body 1, which is not easy to control the drying process of the blasting beads. However, the present technical solution uses the heat pump unit 100 to input hot air with suitable temperature and humidity into the rotating cage body 1 for drying the blasting beads, which can improve the drying efficiency of the blasting beads and easily control the drying degree of the blasting beads, thereby improving the quality of the finished blasting beads. Moreover, the present solution detects the temperature of the blasting beads in the rotating cage body, the outlet temperature and humidity of the heat pump unit (referring to the outlet temperature and outlet humidity), and the return temperature and humidity (referring to the return temperature and return humidity) respectively, and adjusts the operation of the heat pump unit according to the data such as the outlet temperature and humidity of the heat pump unit and the return temperature and humidity, to provide more favorable conditions for the drying of the blasting beads.

[0045] Specifically, after the start of the rotating cage 1 and the heat pump unit 100, the temperature and humidity of the air outlet of the heat pump unit are set to a first temperature value and a first humidity value. That is, the first temperature value is the initial value of the air outlet temperature of the heat pump unit when the rotating cage and the heat pump unit are started. The control module 300 can calculate the temperature difference between the temperature data of the second temperature detection module 500 and the temperature data of the third temperature and humidity detection module 600 according to the received temperature data, and adjust the operation state of the heat pump unit 100 (such as resetting the air outlet temperature of the heat pump unit 100) according to the temperature difference. Specifically, if the temperature difference is greater than 10°C, the control module 300 sets the air outlet temperature of the heat pump unit 100 to the first temperature value + 8°C; if the temperature difference is between 5-10°C, the control module 300 sets the air outlet temperature of the heat pump unit 100 to the first temperature value + 5°C; if the temperature difference is greater than 2°C and less than 5°C, the control module 300 sets the air outlet temperature of the heat pump unit 100 to the first temperature value + 2°C; if the temperature difference is between 0-2°C, the control module 300 resets the air outlet temperature of the heat pump unit 100 to the first temperature value.

[0046] For example, generally, the first temperature value and the first humidity value are 40°C and 30%, respectively. When the temperature difference between the temperature data of the second temperature detection module 500 and the temperature data of the third temperature and humidity detection module 600 is greater than 10°C, the control module 300 sets the air outlet temperature of the heat pump unit 100 to 48°C (i.e. 40°C + 8°C); if the temperature difference is between 5-10°C, the control module 300 sets the air outlet temperature of the heat pump unit 100 to 45°C; if the temperature difference is greater than 2°C and less than 5°C, the control module 300 sets the air outlet temperature of the heat pump unit 100 to the first temperature value 42°C.

[0047] Since there is a certain temperature difference between the temperature of the surface of the popping beads in the rotating cage 1 and the temperature of the hot air output by the heat pump unit 100 at the initial stage when the heat pump unit 100 starts to input hot air into the rotating cage 1, the temperature of the hot air output by the heat pump unit 100 will be higher than the temperature of the surface of the popping beads in the rotating cage 1, and the temperature difference between the two will gradually decrease over time until there is little difference. Therefore, the applicant found through repeated tests that at the beginning, when the temperature difference is greater than 10°C, the outlet air temperature of the heat pump unit 100 is increased by 8°C based on the original set temperature value, so that the heating power of the heat pump unit is increased to quickly raise the gas temperature in the rotating cage 1, thereby increasing the temperature of the popping beads in the rotating cage 1, so that the water in the popping beads can evaporate quickly, and the drying rate of the popping beads is improved; when the temperature difference decreases to the range of 5-10°C, the outlet air temperature of the heat pump unit 100 is increased by 5°C based on the original set temperature value, and when the temperature difference is greater than 2°C and less than 5°C, the outlet air temperature of the heat pump unit 100 is increased by only 2°C based on the original set temperature value, until the temperature difference between the temperature of the surface of the popping beads in the rotating cage 1 and the temperature of the hot air output by the heat pump unit 100 is between 0-2°C, the outlet air temperature of the heat pump unit 100 is reset to the first temperature value. This operation can quickly make the gas temperature in the rotating cage 1 reach the required temperature value, improve the drying efficiency, and also avoid the adverse effects of long-time temperature not reaching the process temperature value on the popping beads drying.

[0048] Those skilled in the art can understand that the outlet air temperature of the heat pump unit 100 can not be adjusted, and the heat pump unit 100 always outputs hot air at the first temperature value during the drying stage, but this will affect the drying efficiency and drying effect of the popping beads. The above process of adjusting the operating state of the heat pump unit 100 according to the temperature difference seems to increase the redundant setting steps on the surface, but in fact, combined with the subsequent processing steps, the overall drying efficiency and drying effect are improved.

[0049] Specifically, after the control module 300 resets the outlet air temperature and humidity of the heat pump unit 100 to the first temperature value, during the pod drying process, the first temperature and humidity detection module 400 and the third temperature and humidity detection module 600 will detect the temperature and humidity of the gas at the return air vent and the outlet air vent of the heat pump unit in real time, and output the detected data to the control module 300 in real time. The control module 300 receives the temperature and humidity data output by the first temperature and humidity detection module 400 and the third temperature and humidity detection module 600 in real time, and calculates the absolute moisture content at the outlet air vent and the return air vent respectively based on the detection data of the first temperature and humidity detection module 400 and the third temperature and humidity detection module 600. When the absolute moisture content at the outlet air vent and the absolute moisture content at the return air vent match, the control module 300 changes the outlet air temperature and humidity of the heat pump unit 100 to the second temperature value and the second humidity value to balance the pods. Specifically, when the absolute moisture content at the air outlet and the absolute moisture content at the air return outlet match, the purpose of resetting the outlet temperature and humidity of the heat pump unit 100 is to slowly reduce the temperature and humidity of the burst beads inside the rotating drum 1 to the range required by the testing environment, preventing cracks in the burst bead wall material due to excessive temperature and humidity difference with the environment after discharge (the principle of thermal expansion and contraction). This stage typically lasts for 2 minutes. Specifically, when the absolute difference between the absolute moisture content at the air outlet and the absolute moisture content at the air return outlet is less than or equal to 5% of the absolute moisture content at the air outlet, the absolute moisture content at the air outlet and the absolute moisture content at the air return outlet are considered to match. Further, the second temperature value is 25℃, and the second humidity value is 60%. Of course, the values ​​of the second temperature and second humidity can be selected according to the actual situation.

[0050] For example, such as Figure 1 As shown, the inner sidewall of the rotating drum body 1 is provided with a discharge guide plate 13 and a plurality of lifting plates 14; the discharge guide plate 13 is arc-shaped and extends from the feed end of the rotating drum body 1 to the discharge end of the rotating drum body 1; the angle between the extension direction of each lifting plate 14 and the plane where the discharge end of the rotating drum body 1 is located in the first direction is an acute angle; and the discharge guide plate 13 and the lifting plates 14 are inclined in opposite directions relative to the reference plane passing through the axis of the rotating drum body 1.

[0051] Specifically, the reference plane can be a plane jointly formed by any generatrix between the discharge guide plate 13 and the lifting plate 14 and the axis of the rotating drum 1. That is, the reference plane is a plane passing through the axis of the rotating drum 1, and the reference plane is different for the lifting plate 14 at different positions. That is, the inclination direction of each lifting plate 14 and the discharge guide plate 13 relative to the reference plane between them is opposite.

[0052] The inside wall of the rotating cage body 1 in the scheme adopts a unique design method of the scraper 14 and the discharge guide plate 13, which can make the material move back and forth between the feeding end and the discharging end of the rotating cage body 1. Compared with the setting method of the scraper 14 which is all directed to one direction, the blasting beads in the cavity of the rotating cage body 1 in the scheme will not move to one direction only, so that the uneven drying of the blasting beads caused by the accumulation of the blasting beads at the feeding end or the discharging end can be avoided, that is, the use of the rotating cage body 1 assembly in the application can make the blasting beads in the rotating cage body 1 dry more evenly.

[0053] Specifically, the rotating cage body 1 adopts a single-layer stainless steel structure, and a food-grade anti-adhesion coating is sprayed on the surface to improve smoothness and anti-adhesion. Alternatively, the food-grade anti-adhesion coating can be a food-grade PFA coating. A plurality of ventilation holes are formed on the side wall of the rotating cage body 1, and the ventilation holes are arranged in the circumferential direction. The width of the ventilation hole is 1.5-3mm, which can be determined according to the size of the blasting beads to be dried. The larger the opening, the higher the ventilation rate of the rotating cage. However, the opening width must be less than the diameter of the blasting beads. The length of the ventilation hole is 20-30mm to ensure that the overall cage has good strength after opening and to prevent the rotating cage body 1 from being deformed during the forming process and subsequent rotation process.

[0054] Further, the heat pump unit 100 includes a double-frequency compressor and a variable-frequency cooling fan. The use of double-frequency compressor and variable-frequency cooling fan technology can automatically adjust the working capacity of the compressor according to the evaporation of the blasting beads during the drying process, match the required dehumidification amount during the drying process, and realize stable air inlet temperature and humidity. The drying process is adjustable and controllable.

[0055] Exemplarily, referring to Figure 2 and Figure 6 , the blasting bead intelligent drying system further includes a first box body 200, and the rotating cage assembly is arranged in the first box body 200. Specifically, the first box body 200 is provided with an air inlet and an air outlet. The air outlet of the heat pump unit 100 is connected to the air inlet of the first box body 200 through an air inlet pipeline 101, and the air outlet of the heat pump unit 100 is connected to the air outlet of the first box body 200 through an air return pipeline 102. The heat pump unit 100 can be arranged side by side with the first box body 200 to provide hot air to the inside of the first box body 200. Specifically, the heat pump unit 100 is further provided with a cooling fan pipeline 103 for discharging waste gas in the heat pump unit 100.

[0056] Exemplarily, a photoelectric detection switch is arranged directly below the lowest point of the rotating cage 1, and the photoelectric detection switch is connected with the control module 300; a triggering part is arranged on the outer side wall of the rotating cage 1, and the triggering part corresponds to the position of the second temperature detection module 500; when the triggering part rotates to the bottom end of the rotating cage 1, the triggering part triggers the photoelectric detection switch, and the triggered photoelectric detection switch sends a signal to the control module 300 to make the control module 300 control the second temperature detection module 500 to collect the temperature of the surface of the blasting beads in the cavity. Specifically, the second temperature detection module 500 is arranged close to the discharging end of the rotating cage 1, and the distance between the second temperature detection module 500 and the inner side wall of the rotating cage 1 is 10-15 mm.

[0057] That is, a temperature and humidity sensor is arranged on the inner side of the discharging cover plate at the discharging end of the rotating cage 1, and the height is 10-15 mm parallel to the rotating cage wall, to detect the internal temperature of the blasting bead stack. On the outer side of the same installation position, a photoelectric detection switch (i.e. photoelectric switch trigger) is arranged, and the photoelectric detection switch is arranged directly below the lowest point in the rotating process of the rotating cage 1. When the rotating cage 1 rotates to the lowest point, the photoelectric detection switch is triggered, so that the second temperature detection module 500 measures the internal temperature of the blasting bead stack. In this way, the accuracy of data collection is facilitated, and the service life of the second temperature detection module 500 is prolonged. In addition, compared with monitoring the hot air temperature in the conventional process, the temperature of the surface of the blasting beads collected in the embodiment can avoid misjudgment caused by monitoring the air temperature.

[0058] Exemplarily, as shown in Figure 2 , the discharging end of the rotating cage 1 is provided with a discharging cover plate, the discharging cover plate is provided with a discharging port, and the rotating cage assembly further comprises:

[0059] a shielding part movably arranged on the inner side wall of the discharging cover plate;

[0060] a driving part connected with the shielding part, for driving the shielding part to move to cover or expose the discharging port.

[0061] Specifically, the shielding part and the driving part constitute a discharging mechanism 15, that is, by arranging the shielding part on the inner side wall of the discharging cover plate at the discharging end and controlling the movement of the shielding part by the driving part, the shielding part can cover the discharging port during the drying process. After the drying process is completed, the shielding part is opened to expose the discharging port, so that the dried blasting beads can flow out smoothly, avoiding the misflow of the blasting beads during the drying process and affecting the quality of the finished blasting beads.

[0062] Exemplarily, as shown in Figure 4 and Figure 4As shown, the smart drying system of the blasting beads further comprises an electric slip ring assembly 6. Specifically, since the second temperature detection module 500 and the discharging mechanism 15 are both arranged in the cavity of the rotating cage body 1, the second temperature detection module 500 and the discharging mechanism are further electrically connected with an electric control part 7, which is arranged on the rotating cage body 1, and the second temperature detection module 500, the discharging mechanism 15 and the electric control part 7 can rotate synchronously with the rotating cage body 1; the electric slip ring assembly 6 is arranged at the discharging end of the rotating cage body 1, and is electrically connected with the electric control part 7, for supplying power to the electric control part 7 to control the second temperature detection module 500 and the discharging mechanism to be turned on.

[0063] Since the electric control part 7 needs power supply, and considering that the electric control part 7 is arranged on the rotating cage body 1 and rotates with the rotating cage body 1, in the present scheme, the electric slip ring assembly 6 is further arranged, which can rotate synchronously with the rotating cage body 1, so that the electric slip ring assembly can continuously supply power to the electric control part 7 during the rotation process, avoiding power failure accidents and ensuring the smooth progress of the drying process.

[0064] Specifically, the electric slip ring assembly 6 comprises a slip ring stop block, a slip ring fixing seat and an electric slip ring. One end of the electric slip ring is connected with the discharging pipe 3, and the other end is fixedly connected with the slip ring fixing seat. Specifically, the electric slip ring is an electrical component responsible for connecting and transmitting energy and signals to the rotating body. According to the transmission medium, the slip ring can be divided into electric slip ring, fluid slip ring and optical slip ring. It can also be commonly called "rotary connection" or "rotary connection". The slip ring is usually installed at the rotating center of the equipment, mainly composed of rotating and stationary parts. The rotating part is connected with the rotating structure of the equipment and rotates with it, called "rotor", and the stationary part is connected with the fixed structure of the equipment, called "stator". The whole slip ring relies on the principle of elastic lap joint, rolling lap joint or sealing, as well as the clever design of movement structure and sealing structure, precise parts manufacturing cooperation and reasonable material selection, to form a stable and reliable rotary connection system. As long as the slip ring is attached to the equipment rotating infinitely, power energy can be provided to the rotating body, so that the rotating body can perform other movements or detect the working condition in the rotating state while rotating infinitely.

[0065] Specifically, as shown in the figure, Figure 5 The discharging end of the rotating cage body 1 is provided with a discharging pipe 3 communicating with the discharging port, and a receiving hopper 5 is arranged below the discharging pipe. After drying, the discharging mechanism 15 is opened, the blasting beads in the cavity of the rotating cage body 1 flow into the receiving hopper 5 through the discharging pipe 3, and then are output to the next process from the receiving hopper 5.

[0066] For example, as shown in the figure, ​ The smart drying system of the blasting beads further comprises a feeding mechanism; the feeding end of the rotating cage body 1 is provided with a feeding cover plate 11, the center of the feeding cover plate 11 is provided with a feeding port, and the feeding mechanism communicates with the feeding port.

[0067] Specifically, the feeding cover plate 11 is hinged to the side wall of the rotating cage body 1, and a handle 12 is arranged on the feeding cover plate. In order to facilitate the opening or closing of the feeding cover plate 11.

[0068] Illustratively, the smart drying system for the blasting beads further comprises a rotating cage fan 4 and an air duct 2 arranged in the first box body 200. The air inlet of the rotating cage fan 4 is connected with the air inlet pipeline 101 of the heat pump unit 100; the two ends of the air duct 2 are respectively connected with the air outlet of the rotating cage fan 4 and the cavity of the rotating cage body 1, and are used for transmitting the gas provided by the rotating cage fan 4 into the cavity of the rotating cage body 1 to dry the blasting beads in the cavity.

[0069] Specifically, the end of the air duct 2 connected with the rotating cage body 1 is arc-shaped, and the shape thereof matches the shape of the outer side wall of the rotating cage body 1. The dynamic sealing structure is adopted between the air duct 2 and the rotating cage body 1, and the e-shaped silica gel is used for sealing connection. Even during the rotation of the rotating cage, the e-shaped silica gel can realize the sealing connection between the rotating cage body 1 and the air duct 2, so as to prevent the gas output by the air duct 2 from escaping from the joint gap between the rotating cage body 1 and the air duct 2, thereby improving the utilization rate of wind energy in the drying process and achieving the purpose of saving energy.

[0070] Optionally, the rotating cage fan 4 is a high-wind-pressure fan. The high-wind-pressure fan is used to provide process air to dry the blasting beads, so that the blasting beads are in a micro-fluidized state during the rotation, and the drying efficiency is improved.

[0071] According to the intelligent drying system for the blasting beads provided by the application, the first aspect is that the heat pump unit 100 is used to input the hot air with suitable temperature and humidity into the rotating cage 1 for drying the blasting beads, so that the drying efficiency of the blasting beads can be improved, and the drying degree of the blasting beads is easy to control, and the quality of the finished blasting beads is improved. Moreover, the first temperature and humidity detection module 400, the second temperature detection module 500 and the third temperature and humidity detection module 600 are arranged at the air return port of the heat pump unit 100 and in the rotating cage 1 respectively, so as to detect the air return state of the blasting beads, accurately detect the air return humidity and the temperature and humidity inside the blasting bead stack in the rotating cage 1, thereby adjusting the working frequency of the heat pump compressor in the heat pump unit 100, and it is convenient to understand the blasting bead drying process to determine the blasting bead drying end point, so that more favorable conditions are provided for the blasting bead drying. The second aspect is that the inclination directions of the discharge guide plate 13 and the scraping plate 14 relative to the reference plane passing through the axis are opposite, so that the material can alternately move back and forth in the rotating cage 1, the blasting beads can be better rotated, the uniformity of the blasting bead drying is increased, and the material drying efficiency is improved. The third aspect is that the electric slip ring design is adopted, the shielding part is arranged on the inner side wall of the discharge cover plate at the discharge end, and the driving part for controlling the movement of the shielding part is arranged, so that the shielding part can cover the discharge port during the drying process, and after the drying process is completed, the shielding part is opened to expose the discharge port, so that the blasting beads after drying can smoothly flow out, and the blasting beads are prevented from flowing out by mistake during the drying process, and the quality of the finished blasting beads is affected. The fourth aspect is that the driving part and the second temperature detection module 500 in the rotating cage 1 need power supply, and considering that the driving part and the detection module will rotate with the rotating cage 1, the electric slip ring assembly 6 is further arranged in the application, the electric slip ring assembly 6 can rotate synchronously with the rotating cage 1, the electric slip ring can still continuously supply power to the electric control part 7 during the rotation process, the power failure accident is avoided, and the smooth progress of the drying process is ensured.

[0072] Correspondingly, an embodiment of the application further provides a blasting bead drying process, which can be based on the above-mentioned intelligent drying system for the blasting beads. Specifically, the blasting bead drying process comprises the following steps:

[0073] The setting step S1 is that the blasting beads to be dried are added into the rotating cage 1, and the rotating cage 1 and the heat pump unit 100 are started, and the air outlet temperature and humidity of the heat pump unit 100 are set as the first temperature value and the first humidity value respectively.

[0074] The second temperature detection module 500 detects the temperature of the surface of the to-be-dried blasting beads in the rotating cage 1 and outputs the collected data to the control module 300; the third temperature and humidity detection module 600 detects the temperature and humidity of the gas output by the heat pump unit 100 and outputs the collected data to the control module 300; the control module 300 calculates the temperature difference between the temperature data of the second temperature detection module 500 and the temperature data of the third temperature and humidity detection module 600 according to the received data, and adjusts the operation state of the heat pump unit 100 according to the temperature difference, until the temperature difference is 0-2℃, and the next step is performed;

[0075] The drying step S3: the control module 300 resets the outlet air temperature and humidity of the heat pump unit 100 to the first temperature value and the first humidity value. During the drying process of the blasting beads, the first temperature and humidity detection module 400 and the third temperature and humidity detection module 600 detect the temperature and humidity of the gas at the air return port and the air outlet port of the heat pump unit 100 in real time, and output the detected data to the control module 300 in real time. The control module 300 calculates the absolute moisture content at the air outlet port and the air return port according to the detection data of the first temperature and humidity detection module 400 and the third temperature and humidity detection module 600, respectively, until the absolute moisture content at the air outlet port and the absolute moisture content at the air return port match, and the next step is performed.

[0076] The balancing step S4: the control module 300 sets the outlet air temperature and humidity of the heat pump unit 100 to the second temperature value and the second humidity value, respectively. The second temperature value is less than the first temperature value, and the second humidity value is greater than the first humidity value, so that the blasting beads slowly cool down in the rotating cage 1. After a predetermined time is reached, the control module 300 controls the rotating cage 1 to stop rotating and closes the heat pump unit 100, so that the blasting beads are output from the rotating cage.

[0077] The blasting bead drying process is divided into three stages of preheating, drying and balancing, so as to improve the efficiency and effect of the blasting bead drying process and improve the quality of the dried blasting beads.

[0078] Specifically, in the drying step S3 and the balancing step S4, when the absolute moisture content at the air outlet and the absolute moisture content at the return air outlet match, the purpose of resetting the outlet air temperature and humidity of the heat pump unit 100 is to slowly reduce the temperature and humidity of the balloon in the rotating cage 1 to the detection environment requirement range, so as to prevent the balloon from being cracked after discharging due to the large difference between the temperature and humidity of the balloon and the environment (thermal expansion and cold shrinkage principle). Alternatively, the preset time in the balancing stage is 2-10 min. Specifically, the preset time can be determined according to the cooling rate of the heat pump unit 100, and preferably, the preset time can be set to 5 min. Specifically, when the absolute difference between the absolute moisture content at the air outlet and the absolute moisture content at the return air outlet and the absolute moisture content at the air outlet is less than or equal to 5%, it is considered that the absolute moisture content at the air outlet and the absolute moisture content at the return air outlet match. Further, the second temperature value is 25°C, and the second humidity value is 60%. Of course, the values of the second temperature value and the second humidity value can be selected according to the actual situation.

[0079] Specifically, in the preheating step S2, if the temperature difference value is greater than 10°C, the control module 300 sets the outlet air temperature of the heat pump unit to the first temperature value+8°C; if the temperature difference value is between 5-10°C, the control module 300 sets the outlet air temperature of the heat pump unit to the first temperature value+5°C; if the temperature difference value is greater than 2°C and less than 5°C, the control module 300 sets the outlet air temperature of the heat pump unit to the first temperature value+2°C.

[0080] Specifically, after the rotating cage 1 and the heat pump unit 100 are turned on, the temperature and humidity of the air outlet of the heat pump unit are set to the first temperature value and the first humidity value. The control module 300 can calculate the temperature difference between the temperature data of the second temperature detection module 500 and the temperature data of the third temperature and humidity detection module 600 according to the received temperature data, and adjust the operation state of the heat pump unit 100 (such as resetting the air outlet temperature of the heat pump unit 100) according to the temperature difference. Because there is a certain temperature difference between the temperature of the surface of the balloon in the rotating cage 1 and the temperature of the hot air output by the heat pump unit 100 at the initial stage when the heat pump unit 100 inputs hot air into the rotating cage 1, the temperature of the hot air output by the heat pump unit 100 will be higher than the temperature of the surface of the balloon in the rotating cage 1, and the temperature difference between the two will gradually decrease over time until there is little difference. Therefore, the applicant found through repeated experiments that at the beginning, when the temperature difference is greater than 10°C, the air outlet temperature of the heat pump unit 100 is increased by 8°C based on the original set temperature value, so that the heating power of the heat pump unit is increased to quickly increase the gas temperature in the rotating cage 1; when the temperature difference decreases to the range of 5-10°C, the air outlet temperature of the heat pump unit 100 is increased by 5°C based on the original set temperature value; when the temperature difference is greater than 2°C and less than 5°C, the air outlet temperature of the heat pump unit 100 is increased by only 2°C based on the original set temperature value; and when the temperature difference between the temperature of the surface of the balloon in the rotating cage 1 and the temperature of the hot air output by the heat pump unit 100 is between 0-2°C, the air outlet temperature of the heat pump unit 100 is reset to the first temperature value. This operation can quickly bring the gas temperature in the rotating cage to the required temperature value, improve the drying efficiency, and also avoid the adverse effects of long-term temperature not reaching the process temperature value on the drying of the balloon.

[0081] For example, generally, the first temperature value and the first humidity value are 40°C and 30%, respectively (of course, the values of the first temperature value and the first humidity value can be selected according to actual production needs). When the temperature difference between the temperature data of the second temperature detection module 500 and the temperature data of the third temperature and humidity detection module 600 is greater than 10°C, the control module 300 sets the air outlet temperature of the heat pump unit 100 to 48°C (i.e., 40°C+8°C); if the temperature difference is between 5-10°C, the control module 300 sets the air outlet temperature of the heat pump unit 100 to 45°C; and if the temperature difference is greater than 2°C and less than 5°C, the control module 300 sets the air outlet temperature of the heat pump unit 100 to the first temperature value 42°C.

[0082] It can be understood by those skilled in the art that the outlet air temperature of the heat pump unit 100 can also not be adjusted, and the heat pump unit 100 always outputs hot air gas at the first temperature value in the drying stage, but this will affect the drying efficiency and drying effect of the blasting beads. The method of adjusting the operating state of the heat pump unit 100 according to the temperature difference value described above seems to increase the redundant setting steps on the surface, but in fact, combined with the subsequent drying step and the balancing step, it is overall more conducive to the improvement of the drying efficiency and the drying effect.

[0083] Although the present application has been illustrated and described with reference to certain preferred embodiments thereof, it should be understood that the foregoing is intended to illustrate the present application and not to limit the scope thereof. Various modifications to the details could be made by those skilled in the art without departing from the spirit and scope of the present application.

Claims

1. A blasting bead drying process based on a blasting bead intelligent drying system, characterized in that, The intelligent drying system for the blasting beads comprises: A rotating cage assembly, comprising a rotating cage body rotatable around its own axis, the interior of the rotating cage body having a cavity for accommodating the blasting beads; A heat pump unit for providing hot air to the interior of the rotating cage body, the heat pump unit having an air outlet and an air return connected to the cavity in the interior of the rotating cage body, wherein the air outlet is used to output the hot air provided by the heat pump unit to the rotating cage body, and the air return is used to receive the gas output by the rotating cage body; A first temperature and humidity detection module arranged close to the air return of the heat pump unit, for detecting the temperature and humidity of the gas output from the interior of the rotating cage body; A second temperature detection module arranged in the rotating cage body, for detecting the temperature of the blasting beads in the rotating cage body; A third temperature and humidity detection module arranged at the air outlet of the heat pump unit, for detecting the temperature and humidity of the gas output by the heat pump unit; A control module electrically connected to the first temperature and humidity detection module, the second temperature detection module and the third temperature and humidity detection module, for receiving the data output by the first temperature and humidity detection module, the second temperature detection module and the third temperature and humidity detection module, and controlling the operation of the heat pump unit according to the data output by each detection module to adjust the temperature and humidity of the gas output by the heat pump unit; The blasting bead drying process comprises: A setting step: adding the blasting beads to be dried into the rotating cage body, starting the rotating cage body and the heat pump unit, and setting the air outlet temperature and humidity of the heat pump unit to a first temperature value and a first humidity value respectively; A preheating step: the second temperature detection module detects the temperature of the surface of the blasting beads to be dried in the rotating cage body and outputs the collected data to the control module; the third temperature and humidity detection module detects the temperature and humidity of the gas output by the heat pump unit and outputs the collected data to the control module; the control module calculates the temperature difference between the temperature data of the second temperature detection module and the temperature data of the third temperature and humidity detection module according to the received data, and adjusts the operation state of the heat pump unit according to the temperature difference, until the temperature difference is within 0-2℃, and the next step is performed; A drying step: the control module re-sets the air outlet temperature and humidity of the heat pump unit to the first temperature value and the first humidity value, and in the process of drying the blasting beads, the first temperature and humidity detection module and the third temperature and humidity detection module detect the temperature and humidity of the gas at the air outlet and the air return of the heat pump unit in real time, and output the detected data to the control module in real time, the control module calculates the absolute moisture content at the air outlet and the air return according to the detection data of the first temperature and humidity detection module and the third temperature and humidity detection module respectively, until the absolute moisture content at the air outlet and the absolute moisture content at the air return match, and the next step is performed. The control module sets the outlet air temperature and humidity of the heat pump unit to second temperature value and second humidity value respectively, the second temperature value is less than the first temperature value and the second humidity value is greater than the first humidity value, so that the balloon slowly cools in the rotating cage, and after a preset time is reached, the control module controls the rotating cage to stop rotating and the heat pump unit to be turned off, so that the balloon is output from the rotating cage.

2. The shot drying process of claim 1, wherein, In the preheating step, the adjustment of the operating state of the heat pump unit according to the temperature difference value includes: If the temperature difference value is greater than 10 DEG C, the control module sets the outlet air temperature of the heat pump unit to the first temperature value + 8 DEG C; if the temperature difference value is between 5-10 DEG C, the control module sets the outlet air temperature of the heat pump unit to the first temperature value + 5 DEG C; if the temperature difference value is greater than 2 DEG C and less than 5 DEG C, the control module sets the outlet air temperature of the heat pump unit to the first temperature value + 2 DEG C.

3. The shot drying process of claim 1, wherein, The first temperature value is 40 DEG C, the first humidity value is 30%, the second temperature value is 25 DEG C, and the second humidity value is 60%.

4. The shot drying process of claim 1, wherein, When the absolute difference between the absolute moisture content at the outlet and the absolute moisture content at the return air outlet and the ratio of the absolute moisture content at the outlet are less than or equal to 5%, it is considered that the absolute moisture content at the outlet and the absolute moisture content at the return air outlet match.

5. The shot drying process of claim 1, wherein, The preset time is 2-10 minutes.

6. The shot drying process of claim 1, wherein, The inner side wall of the rotating cage is provided with a discharge guide plate and a plurality of scoops; the discharge guide plate is arc-shaped and extends from the feeding end of the rotating cage to the discharge end of the rotating cage; the extension direction of each scoop forms an acute angle with the plane on which the discharge end of the rotating cage is located in the first direction; and the discharge guide plate and the scoops are inclined in opposite directions relative to the reference surface passing through the axis of the rotating cage.

7. The shot drying process of claim 1, wherein, A photoelectric detection switch is arranged directly below the lowest point of the rotating cage, and the photoelectric detection switch is connected with the control module; a trigger portion is arranged on the outer side wall of the rotating cage, and the trigger portion corresponds to the position of the second temperature detection module; when the trigger portion rotates to the bottom end of the rotating cage, the trigger portion triggers the photoelectric detection switch, and the triggered photoelectric detection switch sends a signal to the control module to make the control module control the second temperature detection module to collect the temperature of the balloon in the cavity.

8. The shot drying process of claim 1, wherein, The second temperature detection module is arranged close to the discharge end of the rotating cage, and the distance between the second temperature detection module and the inner side wall of the rotating cage is 10-15 mm.

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