Fluidized bed cooling device

Abstract

The utility model discloses a fluidized bed cooling device which comprises a fluidized bed body (1), a temperature measuring module is arranged below the working face of the fluidized bed body (1), a heat dissipation module is arranged on the back face of the fluidized bed body (1), and the heat dissipation module is connected with a cooling liquid circulating device. And the temperature measuring module and the cooling liquid circulating device are electrically connected with the PLC (2). According to the utility model, the temperature of the fluidized bed can be monitored and adjusted in real time, so that the working efficiency of equipment and the product quality are ensured.

Description

Technical Field

[0001] The utility model relates to a cooling device, in particular to a fluidized bed cooling device. Background Art

[0002] At present, a considerable proportion of the main cigarette-making equipment of domestic tobacco enterprises adopts fluidized bed technology to supply tobacco. In normal production, tobacco is quantitatively conveyed by steep-angle lifting belts in cigarette-making machines using fluidized bed technology. After passing through spreading rollers and needle rollers, the tobacco clumps are blown into a uniform tobacco flow by the airflow of positive pressure air, and then transported to the wind chamber through the fluidized bed to form tobacco strip bundles. The formed tobacco strip bundles are then sent to the next process through suction belts. The advantage of fluidized bed technology is that tobacco is conveyed at high speed through airflow, making the conveying process gentler, thereby effectively reducing the tobacco breakage rate and greatly improving the tobacco structure, especially its uniformity, filling density, and stem and tobacco sorting.

[0003] However, it is also found in production that due to the high-speed flow of tobacco on the plane of the fluidized bed, the friction between tobacco and the fluidized bed will cause the temperature of the fluidized bed to rise significantly. Excessive temperature will cause displacement and deformation of the fluidized bed, affecting the tobacco conveying effect and aggravating the wear of the fluidized bed plane. In addition, due to temperature conduction, high temperature also causes high-temperature interference to the control system in the equipment's electrical control cabinet. Most importantly, the high temperature of the fluidized bed has a negative impact on the moisture content of tobacco, which will accelerate the evaporation of water in the tobacco and affect the structure and taste of tobacco. This situation not only reduces the working efficiency of the equipment, but also causes serious product quality risks. Utility Model Content

[0004] The utility model aims to provide a fluidized bed cooling device to solve the technical problems in the prior art. The device can monitor the temperature of the fluidized bed and adjust the temperature of the fluidized bed in real time to ensure the working efficiency of the equipment and the product quality.

[0005] The utility model provides a fluidized bed cooling device, comprising a fluidized bed body, a temperature measuring module is arranged below the working surface of the fluidized bed body, a heat dissipation module is arranged on the back of the fluidized bed body, the heat dissipation module is connected to a cooling liquid circulation device, and the temperature measuring module and the cooling liquid circulation device are both electrically connected to a PLC programmable controller.

[0006] In the aforementioned fluidized bed cooling device, preferably, the temperature measurement module includes a first temperature sensor, a second temperature sensor, a third temperature sensor and a fourth temperature sensor, the first temperature sensor and the second temperature sensor are a group, and they are arranged on the front side of the working surface of the fluidized bed body; the third temperature sensor and the fourth temperature sensor are a group, and they are arranged on the rear side of the working surface of the fluidized bed body, and the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor are all electrically connected to the PLC programmable controller.

[0007] In the aforementioned fluidized bed cooling device, preferably, the temperature measuring module also includes a fixing seat, the fixing seat is fixedly arranged in the fluidized bed body, the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor are all fixed on the fixing seat, and the temperature detection ends of the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor are all in contact with the working surface of the fluidized bed body.

[0008] In the aforementioned fluidized bed cooling device, preferably, the coolant circulation device includes a cooling block, a water outlet pipe, a water inlet pipe, a cooling pump controlled by a servo motor and a coolant tank, the cooling block is fixedly mounted on the back of the fluidized bed body, a coolant flow channel is arranged in the cooling block, the outlet end of the coolant flow channel is connected to the return liquid port of the coolant tank through the water outlet pipe, the inlet end of the coolant flow channel is connected to the liquid outlet of the coolant tank through the water inlet pipe, the cooling pump controlled by the servo motor is arranged on the water inlet pipe, and the cooling pump controlled by the servo motor is electrically connected to the PLC programmable controller.

[0009] In the aforementioned fluidized bed cooling device, preferably, the coolant flow channel is a serpentine flow channel.

[0010] In the aforementioned fluidized bed cooling device, preferably, the cooling block is made of metal.

[0011] In the aforementioned fluidized bed cooling device, preferably, the PLC programmable controller is also connected to an audible and visual alarm.

[0012] Compared with the prior art, the utility model includes a fluidized bed body, a temperature measuring module is arranged below the working surface of the fluidized bed body, a heat dissipation module is arranged on the back of the fluidized bed body, the heat dissipation module is connected to a coolant circulation device, and the temperature measuring module and the coolant circulation device are both electrically connected to a PLC programmable controller. The utility model can accurately measure the real-time working temperature of the fluidized bed body through the temperature measuring module, and accurately control the working temperature of the fluidized bed body through the added heat dissipation module and the coolant circulation device, thereby eliminating various equipment and product quality problems caused by the high temperature of the fluidized bed body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a structural diagram of the temperature measurement module;

[0015] Figure 3 It is a schematic diagram of the half-section structure of the cooling block.

[0016] Explanation of the reference numerals: fluidized bed body 1, PLC programmable controller 2, first temperature sensor 3, second temperature sensor 4, third temperature sensor 5, fourth temperature sensor 6, fixing seat 7, cooling block 8, water outlet pipe 9, water inlet pipe 10, cooling pump controlled by servo motor 11, coolant tank 12, coolant flow channel 13, sound and light alarm 14. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0018] Embodiments of the present utility model: Figure 1-Figure 3 As shown, a fluidized bed cooling device includes a fluidized bed body 1, a temperature measuring module is arranged below the working surface of the fluidized bed body 1, a heat dissipation module is arranged on the back of the fluidized bed body 1, the heat dissipation module is connected to a coolant circulation device, the temperature measuring module and the coolant circulation device are both electrically connected to a PLC programmable controller 2; the PLC programmable controller 2 is also connected to an audible and visual alarm 14.

[0019] The temperature measuring module is used to measure the working problems of the fluidized bed body 1 in real time. The PLC programmable controller 2 is used to receive the temperature information sent by the temperature measuring module and control the working state of the coolant circulation device. The working temperature of the fluidized bed body 1 is adjusted through the heat dissipation module to solve the high temperature problem of the fluidized bed body 1 in the prior art, ensure the normal operation of the equipment and ensure stable product quality.

[0020] In a specific embodiment, the temperature measuring module includes a first temperature sensor 3, a second temperature sensor 4, a third temperature sensor 5 and a fourth temperature sensor 6, the first temperature sensor 3 and the second temperature sensor 4 are a group, and the first temperature sensor 3 and the second temperature sensor 4 are arranged on the front side of the working surface of the fluidized bed body 1; the third temperature sensor 5 and the fourth temperature sensor 6 are a group, and the third temperature sensor 5 and the fourth temperature sensor 6 are arranged on the rear side of the working surface of the fluidized bed body 1, and the first temperature sensor 3, the second temperature sensor 4, the third temperature sensor 5 and the fourth temperature sensor 6 are all electrically connected to the PLC programmable controller 2; the temperature measuring module also includes a fixing seat 7, the fixing seat 7 is fixedly arranged in the fluidized bed body 1, the first temperature sensor 3, the second temperature sensor 4, the third temperature sensor 5 and the fourth temperature sensor 6 are all fixed on the fixing seat 7, and the temperature detection ends of the first temperature sensor 3, the second temperature sensor 4, the third temperature sensor 5 and the fourth temperature sensor 6 are all in contact with the working surface of the fluidized bed body 1.

[0021] In this embodiment, the temperature sensors are divided into two groups. The first temperature sensor 3 and the second temperature sensor 4 form a group for measuring the temperature of the front end of the working surface of the fluidized bed body 1. The third temperature sensor 5 and the fourth temperature sensor 6 form a group for measuring the temperature of the rear end of the working surface of the fluidized bed body 1. The purpose of using two groups of temperature sensors is to indirectly detect the flow rate of the tobacco flow on the fluidized bed body 1. If the temperature difference between the two groups of monitoring data is too high, it means that the tobacco flow of the fluidized bed body 1 is blocked or unevenly supplied. It is also possible that the working surface of the fluidized bed is abnormally worn. When the temperature difference exceeds the set range or the temperature is too high, the PLC programmable controller 2 controls the sound and light alarm 14 to issue an alarm message to prompt the operator to intervene and check.

[0022] Furthermore, the coolant circulation device includes a cooling block 8, a water outlet pipe 9, a water inlet pipe 10, a cooling pump 11 controlled by a servo motor and a coolant tank 12. The cooling block 8 is fixed on the back of the fluidized bed body 1. A coolant flow channel 13 is arranged in the cooling block 8. The outlet end of the coolant flow channel 13 is connected to the return liquid port of the coolant tank 12 through the water outlet pipe 9, and the inlet end of the coolant flow channel 13 is connected to the liquid outlet of the coolant tank 12 through the water inlet pipe 10. The cooling pump 11 controlled by the servo motor is arranged on the water inlet pipe 10, and the cooling pump 11 controlled by the servo motor is electrically connected to the PLC programmable controller 2; the coolant flow channel 13 is a serpentine flow channel; the cooling block 8 is made of metal.

[0023] When the temperature is detected to be too high, the PLC programmable controller 2 adjusts the speed of the cooling pump 11 controlled by the servo motor, changes the flow rate of the coolant, and cools the fluidized bed body 1 through the cooling block 8. The faster the flow rate of the coolant, the faster the cooling speed, and the slower the flow rate of the coolant, the slower the cooling speed. Designing the coolant flow channel 13 as a serpentine flow channel can increase the heat exchange area and achieve a better cooling effect.

[0024] The working principle of the utility model: when the equipment is working, the first temperature sensor 3 and the second temperature sensor 4 collect the temperature of the front end of the working surface of the fluidized bed body 1 in real time, and send the temperature information to the PLC programmable controller 2, the third temperature sensor 5 and the fourth temperature sensor 6 collect the temperature of the rear end of the working surface of the fluidized bed body 1 in real time, and send the temperature information to the PLC programmable controller 2, the PLC programmable controller 2 controls the working state of the cooling pump 11 controlled by the servo motor according to the received temperature information, when the working temperature of the front end and the rear end of the working surface of the fluidized bed body 1 exceeds the preset value, the more the temperature exceeds, the faster the speed of the cooling pump 11 controlled by the servo motor, the faster the circulation speed of the coolant, and the faster the cooling speed of the cooling block 8 on the fluidized bed body 1. If it is detected that the temperature difference between the front end and the rear end of the working surface of the fluidized bed body 1 is large, it means that there is an abnormality in the working surface, and the PLC programmable controller 2 controls the sound and light alarm 14 to send an alarm message to prompt the operator to intervene and check.

[0025] The above describes in detail the structure, features and effects of the utility model based on the embodiments shown in the drawings. The above is only a preferred embodiment of the utility model, but the utility model is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of the utility model, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and the drawings, should be within the protection scope of the utility model.

Claims

1. A fluidized bed cooling device, comprising a fluidized bed body (1), characterized in that: A temperature measuring module is arranged below the working surface of the fluidized bed body (1), and a heat dissipation module is arranged on the back of the fluidized bed body (1). The heat dissipation module is connected to a cooling liquid circulation device. Both the temperature measuring module and the cooling liquid circulation device are electrically connected to a PLC programmable controller (2).

2. The fluidized bed cooling device according to claim 1, characterized in that: The temperature measurement module comprises a first temperature sensor (3), a second temperature sensor (4), a third temperature sensor (5) and a fourth temperature sensor (6); the first temperature sensor (3) and the second temperature sensor (4) form a group, which are arranged on the front side of the working surface of the fluidized bed body (1); the third temperature sensor (5) and the fourth temperature sensor (6) form a group, which are arranged on the rear side of the working surface of the fluidized bed body (1); the first temperature sensor (3), the second temperature sensor (4), the third temperature sensor (5) and the fourth temperature sensor (6) are all electrically connected to the PLC programmable controller (2).

3. The fluidized bed cooling device according to claim 2, characterized in that: The temperature measurement module further comprises a fixing seat (7), wherein the fixing seat (7) is fixedly arranged in the fluidized bed body (1), and the first temperature sensor (3), the second temperature sensor (4), the third temperature sensor (5) and the fourth temperature sensor (6) are all fixed on the fixing seat (7), and the temperature detection ends of the first temperature sensor (3), the second temperature sensor (4), the third temperature sensor (5) and the fourth temperature sensor (6) are all in contact with the working surface of the fluidized bed body (1).

4. The fluidized bed cooling device according to claim 1, characterized in that: The cooling liquid circulation device comprises a cooling block (8), a water outlet pipe (9), a water inlet pipe (10), a cooling pump (11) controlled by a servo motor and a cooling liquid tank (12); the cooling block (8) is fixedly arranged on the back of the fluidized bed body (1); a cooling liquid flow channel (13) is arranged in the cooling block (8); the outlet end of the cooling liquid flow channel (13) is connected to the liquid return port of the cooling liquid tank (12) through the water outlet pipe (9); the inlet end of the cooling liquid flow channel (13) is connected to the liquid outlet of the cooling liquid tank (12) through the water inlet pipe (10); the cooling pump (11) controlled by a servo motor is arranged on the water inlet pipe (10); and the cooling pump (11) controlled by the servo motor is electrically connected to the PLC programmable controller (2).

5. The fluidized bed cooling device according to claim 4, characterized in that: The coolant flow channel (13) is a serpentine flow channel.

6. The fluidized bed cooling device according to claim 5, characterized in that: The cooling block (8) is made of metal.

7. The fluidized bed cooling device according to claim 1, characterized in that: The PLC programmable controller (2) is also connected to an audible and visual alarm (14).

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