A biomass pellet feeding system for tobacco leaf baking

Abstract

The present invention provides a biomass pellet feeding system for tobacco leaf baking, including a barrel, a spiral conveying mechanism, an upper limit material level switch, a lower limit material level switch, a controller and an alarm, the barrel is provided with a weighing sensor, the spiral conveying mechanism is tilted, the bottom end of the spiral conveying mechanism is arranged at the bottom end of the barrel, and is provided with a feeding port, the top end of the spiral conveying mechanism is arranged above the hopper of the biomass pellet burner, and is provided with a discharging port, the upper limit material level switch and the lower limit material level switch are respectively arranged on the side wall of the hopper of the biomass pellet burner, the upper limit material level switch and the lower limit material level switch are both connected to the controller signal, the controller is connected to the spiral conveying mechanism signal, the weighing sensor is connected to the controller signal, and the controller is connected to the alarm signal. The system can automatically cycle the feeding, and the whole process does not require manual observation. It only needs to add enough biomass pellets into the barrel body. After the material is filled, the workers can leave without staying on site, saving human resources.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco leaf baking, in particular to a biomass particle feeding system for tobacco leaf baking. Background Art

[0002] In the process of tobacco leaf baking, biomass pellet burners are generally used to bake tobacco leaves. Before baking, dozens of bags of biomass pellets need to be added to the hopper of the biomass pellet burner. Since the hopper of the biomass pellet burner is located at a high position, each bag of biomass pellets is heavy. The traditional way of adding materials is to manually add materials to the hopper. The labor intensity of manual adding workers is large, and they need to climb high, which is dangerous. Therefore, at present, tobacco factories often use screw feeders to add materials to the hopper of the biomass pellet burner. However, during the adding process, workers are often required to observe whether the biomass pellets in the hopper of the biomass pellet burner are full at all times, and workers need to continuously add materials to the hopper of the screw feeder. The entire adding process cannot be separated from people, and in order to meet the continuous baking of tobacco leaves, the burner needs to work continuously. When the biomass pellets in the burner hopper reach a certain residual amount, they need to be added again. This process also requires manual observation and operation of the screw feeder, resulting in a waste of human resources.

[0003] Therefore, it is necessary to design a biomass particle feeding system for tobacco baking to solve the above technical problems. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to provide a biomass particle feeding system for tobacco leaf baking.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] A biomass pellet feeding system for tobacco leaf baking, comprising a barrel, a spiral conveying mechanism, an upper limit level switch, a lower limit level switch, a controller and an alarm, wherein the barrel comprises a barrel body and a base, a weighing sensor is arranged between the barrel body and the base, the spiral conveying mechanism is arranged obliquely, the bottom end of the spiral conveying mechanism is arranged at the bottom end of the barrel, and is provided with a feeding port, the top end of the spiral conveying mechanism is arranged above the hopper of a biomass pellet burner, and is provided with a discharging port, the upper limit level switch and the lower limit level switch are respectively arranged on the side walls of the hopper of the biomass pellet burner, the upper limit level switch and the lower limit level switch are both connected to the controller signal, the controller is connected to the spiral conveying mechanism signal, the weighing sensor is connected to the controller signal, and the controller is connected to the alarm signal.

[0007] Preferably, the alarm is an acoustic alarm.

[0008] Preferably, the controller is communicatively connected to a cloud server.

[0009] Preferably, the screw conveying mechanism includes a screw shaft, a screw shaft is provided with a screw blade, and the screw blade located at the bottom end of the screw shaft is provided with a plurality of through holes, and the plurality of through holes are located on the same straight line, which is parallel to the screw shaft and located on the radial side of the screw shaft.

[0010] Preferably, the screw conveying mechanism is fixedly connected to the biomass particle burner hopper.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The present invention detects the height of biomass particles in the hopper of the biomass particle burner by setting an upper limit material level switch and a lower limit material level switch. The controller controls the spiral conveying mechanism to convey the biomass particles to the hopper of the biomass particle burner. The feeding can be automatically circulated. The whole process does not require manual observation. It only needs to add enough biomass particles into the barrel body. The position of the barrel body is relatively low, which is convenient for adding materials. After the materials are filled, the workers can leave without staying on site. When the amount of biomass particles in the barrel body is lower than a certain value, the alarm can alarm to remind the staff. The system saves human resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 It is a structural schematic diagram of the present invention;

[0014] Attached Figure 2 It is the control principle block diagram of the present invention;

[0015] Attached Figure 3 The schematic diagram of the structure of the spiral shaft and spiral blades in this practical confidence;

[0016] Attached Figure 4 For attachment Figure 3 A magnified view of the structure of part A.

[0017] Description of Reference Numerals

[0018] 1-screw conveying mechanism, 2-upper limit material level switch, 3-lower limit material level switch, 4-barrel body, 5-base, 6-weighing sensor, 7-biomass pellet burner hopper, 8-screw shaft, 9-screw blade, 10-through hole. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the application equally.

[0020] Please refer to the attached Figure 1 and attached Figure 2 A biomass pellet feeding system for tobacco leaf baking, comprising a barrel, a spiral conveying mechanism 1, an upper limit material level switch 2, a lower limit material level switch 3, a controller and an alarm, the barrel comprising a barrel body 4 and a base 5, a weighing sensor 6 is arranged between the barrel body 4 and the base 5, the spiral conveying mechanism 1 is arranged obliquely, the bottom end of the spiral conveying mechanism 1 is arranged at the bottom end of the barrel, and is provided with a feeding port, the top end of the spiral conveying mechanism 1 is arranged above the biomass pellet burner hopper 7, and is provided with a discharge port, the upper limit material level switch 2 and the lower limit material level switch 3 are respectively arranged on the side walls of the biomass pellet burner hopper 7, the upper limit material level switch 2 and the lower limit material level switch 3 are both connected to the controller signal, the controller is connected to the spiral conveying mechanism 1 signal, the weighing sensor 6 is connected to the controller signal, and the controller is connected to the alarm signal.

[0021] Among them, the barrel is used to store biomass particles and is placed on the ground. The barrel can be set to be larger to store a sufficient amount of biomass particles. The spiral conveying mechanism 1 is used to convey the biomass particles in the barrel to the biomass particle burner hopper 7 at a high place. The upper limit level switch 2 and the lower limit level switch 3 arranged on the side wall of the biomass particle burner hopper 7 are respectively used to detect the upper limit height and lower limit height of the biomass particles in the biomass particle burner hopper 7. The upper limit level switch 2 can be set at the top of the biomass particle burner hopper 7, and the biomass particles in the biomass particle burner hopper 7 can be set at the bottom of the biomass particle burner hopper 7. The weighing sensor 6 is used to measure the amount of biomass particles in the barrel.

[0022] Specifically, when using the present system for loading, it is only necessary to add a sufficient amount of biomass particles into the material barrel, and then start the present system. The upper limit level switch 2 and the lower limit level switch 3 detect the height of the biomass particles in the hopper 7 of the biomass particle burner. When the height of the biomass particles in the hopper 7 of the biomass particle burner is lower than the lower limit height, the lower limit level switch 3 transmits a signal to the controller, and the controller controls the screw conveying mechanism 1 to operate and convey the biomass particles in the material barrel to the hopper 7 of the biomass particle burner. When the height of the biomass particles in the hopper 7 of the biomass particle burner is higher than the upper limit height, the upper limit level switch 2 transmits a signal to the controller, and the controller controls the screw conveying mechanism 1 to stop operating; as the biomass particle burner runs, the biomass particles in its hopper are continuously consumed. When the biomass particle consumption drops below the lower limit position, the lower limit level switch 3 transmits a signal to the controller again, and the controller controls the screw conveying mechanism 1 to operate and convey the biomass particles in the material barrel to the biomass particle burner. In the hopper 7 of the biomass pellet burner, when the height of the biomass pellets in the hopper is higher than the upper limit height, the controller controls the screw conveying mechanism 1 to stop running. The system can automatically cycle the above process. The whole process does not require manual observation, saving human resources, but requires a sufficient amount of biomass pellets in the barrel. Therefore, the barrel should be large enough to accommodate a sufficient amount of biomass pellets, and a weighing sensor 6 is set between the barrel body 4 and the base 5 to measure the amount of biomass pellets in the barrel body 4. When the amount of biomass pellets in the barrel body 4 is lower than a certain value, the weighing sensor 6 transmits a signal to the controller, and the controller controls the alarm to sound an alarm. The alarm can be an acoustic alarm, which emits a voice to remind the staff that the amount of biomass pellets in the barrel body 4 is insufficient and biomass pellets need to be added to the barrel body 4. The system only requires the staff to add enough biomass pellets to the barrel body 4, and the barrel body 4 is set on the ground, which is relatively low for easy feeding. After the material is filled, the workers can leave without staying on site, saving human resources.

[0023] Furthermore, the controller is communicatively connected to a cloud server. When the amount of biomass particles in the barrel body 4 is insufficient, the controller sends a signal to the cloud server to prompt that the amount of biomass particles in the barrel body 4 is insufficient.

[0024] For further information, please see the attached Figure 3 The screw conveying mechanism 1 includes a screw shaft 8, a motor for driving the screw shaft 8, and a housing outside the screw shaft 8. The screw shaft 8 is provided with a screw blade 9. The screw blade 9 at the bottom end of the screw shaft 8 is provided with a plurality of through holes 10. Please refer to the attached Figure 4 , the plurality of through holes 10 are located on the same straight line, the straight line is parallel to the screw shaft 8 and is located on one radial side of the screw shaft 8. In this embodiment, the number of through holes 10 can be set to Figure 3The four shown in the figure, by setting the through hole 10, the mass of the spiral blade 9 can be made unbalanced relative to the axis of the spiral shaft 8, that is, the center of gravity of the spiral blade 9 deviates from the axis of the spiral shaft 8. Therefore, when the spiral shaft 8 rotates, it will cause the vibration of the screw conveying mechanism 1, and then the biomass particles in the barrel body 4 near the bottom end of the outer shell of the screw conveying mechanism 1 are forced to vibrate, avoiding blockage and preventing the biomass particles from entering the screw conveying mechanism 1.

[0025] Furthermore, the screw conveying mechanism 1 is fixedly connected to the biomass pellet burner hopper 7, and the outer shell of the screw conveying mechanism 1 can be welded to the top edge of the biomass pellet burner hopper 7. The screw conveying mechanism 1 can drive the biomass pellet burner hopper 7 to vibrate together to avoid blockage of the biomass pellet burner.

Claims

1. A biomass particle feeding system for tobacco leaf baking, characterized in that: It includes a material barrel, a screw conveying mechanism, an upper limit material level switch, a lower limit material level switch, a controller and an alarm. The material barrel includes a barrel body and a base. A weighing sensor is arranged between the barrel body and the base. The screw conveying mechanism is arranged obliquely. The bottom end of the screw conveying mechanism is arranged at the bottom end of the inside of the material barrel and is provided with a material inlet. The top end of the screw conveying mechanism is arranged above the hopper of the biomass particle burner and is provided with a material outlet. The upper limit material level switch and the lower limit material level switch are respectively arranged on the side walls of the hopper of the biomass particle burner. The upper limit material level switch and the lower limit material level switch are both connected to the controller signal, the controller is connected to the screw conveying mechanism signal, the weighing sensor is connected to the controller signal, and the controller is connected to the alarm signal. The controller is communicatively connected to a cloud server; The screw conveying mechanism includes a screw shaft, a screw shaft is provided with a screw blade, and the screw blade located at the bottom end of the screw shaft is provided with a plurality of through holes, and the plurality of through holes are located on the same straight line, which is parallel to the screw shaft and located on one radial side of the screw shaft.

2. A biomass particle feeding system for tobacco leaf baking according to claim 1, characterized in that: The alarm is an acoustic alarm.

3. The biomass particle feeding system for tobacco leaf baking according to claim 1, characterized in that: The screw conveying mechanism is fixedly connected to the biomass particle burner hopper.

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