A device for spraying bacteria in a tobacco curing barn

Abstract

The utility model discloses a kind of fungus sprays in tobacco curing barn, including fungicide storage component, conveying component, fungus spraying component and control component, fungicide storage component is set in curing barn one side, conveying component feed end is connected with the liquid outlet of fungicide storage component, discharge end is connected into curing barn, fungus spraying component is set on curing barn inner side wall upper portion and roof, and is connected with conveying component feed end, for the uniform spraying of fungicide, control component is electrically connected with fungicide storage component, conveying component, fungus spraying component, for making each component cooperation operation realizes automatic uniform fungus spraying in curing barn;The utility model realizes automatic fungus spraying, avoids the safety risk of high-temperature environment to operator, high safety, and ensure that fungicide is evenly covered in curing barn, improve the consistency of different positions tobacco leaf by fungus, adapt to the fungus spraying demand of tobacco baking whole process.

Description

Technical Field

[0001] This utility model relates to a spraying device for tobacco curing barns, belonging to the technical field of tobacco planting and processing equipment. Background Technology

[0002] During tobacco curing, to improve tobacco leaf quality (such as enhancing aroma and reducing harmful substance content), specific functional microbial agents (such as microbial fermentation agents) are often sprayed into the curing barn. Current spraying methods mostly involve manual hand-held sprayers inside the curing barn, which presents several problems: First, the high-temperature environment inside the curing barn (temperatures often reach 35-60°C during curing) poses safety hazards to operators, easily leading to heatstroke; second, manual spraying makes it difficult to ensure uniform distribution of the microbial agent within the curing barn, resulting in excessively high concentrations near the sprayer and insufficient concentrations further away, leading to significant differences in the microbial effect on tobacco leaves in different locations; third, manual operation is inefficient, especially in large curing barns, requiring multiple entries and exits for spraying, and easily disrupting the stable temperature and humidity environment inside the curing barn, affecting curing quality. Therefore, there is an urgent need for a device that can automatically and uniformly spray microbial agents without requiring manual entry into the high-temperature curing barn, thus solving the pain points of existing technologies. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a spraying device for tobacco curing barns, so as to at least solve the problems of poor safety, uneven distribution of bacterial agents, and low efficiency of manual spraying mentioned in the background art.

[0004] The objective of this utility model is achieved through the following technical solution: A microbial spraying device for tobacco curing barns, comprising: A microbial agent storage component is disposed on one side of the drying room and is used for storing microbial agents; A conveying assembly, wherein the inlet end of the conveying assembly is connected to the outlet of the microbial agent storage assembly, and the outlet end is connected to the drying room, for conveying the microbial agent in the microbial agent storage assembly to the drying room; The spraying component is installed on the upper part of the inner wall of the drying room and the roof, and is connected to the feed end of the conveying component for uniform spraying of the microbial agent. A control component, which is electrically connected to a microbial agent storage component, a conveying component, and a microbial spraying component, is used to enable the components to work together to achieve automatic and uniform microbial spraying into the curing room. Furthermore, the microbial agent storage component includes a microbial storage tank, which is supported by a bracket. The outside of the microbial storage tank is wrapped with an insulation layer, and a feeding port is provided at the top. A sealing cap is detachably connected to the feeding port, and a liquid outlet is provided at the bottom.

[0005] Furthermore, an exhaust port is provided at the top of the storage tank, and an air inlet is provided at the bottom. The air inlet and exhaust port are used together to supply sterile air to the storage tank to ensure the activity of the bacteria.

[0006] Furthermore, a water-cooling cavity is provided between the storage tank and the insulation layer. A water inlet pipe and a water return pipe that communicate with the water-cooling cavity are provided at the bottom and top of the storage tank. The water inlet pipe is connected to the water outlet of the water-cooling equipment, and the water return pipe is circulated to the water return port of the water-cooling equipment.

[0007] Furthermore, the storage tank is also equipped with a stirrer, which is connected to a motor located on the top of the storage tank. The motor is connected to a control component, which controls the motor to drive the stirrer to achieve stirring of the microbial agent.

[0008] Furthermore, a liquid level sensor is installed inside the storage tank; an observation window is provided on the side of the storage tank.

[0009] Furthermore, the delivery assembly includes a delivery pump, the input end of which is connected to the outlet of the bacterial agent storage assembly via a pipe, the output end of which is connected to a delivery pipe, and a filter is connected in series between the output end of the delivery pump and the delivery pipe.

[0010] Furthermore, the spraying assembly includes a main pipe, branch pipes, and atomizing nozzles. The main pipe is installed on the upper part of the inner side wall of the drying room along the length of the drying room. One end of the main pipe is connected to the conveying pipe of the conveying assembly, and the other end is sealed. The branch pipes are multiple pieces perpendicular to the main pipe and spaced apart. One end of the branch pipe is connected to the main pipe, and the other end extends to the roof of the drying room and is sealed at the end. Several mounting holes are evenly opened on the main pipe and the branch pipes, and the atomizing nozzles are installed in the mounting holes accordingly.

[0011] Furthermore, a pressure regulating valve is provided at the connection between the delivery pipe and the main pipe, and the pressure regulating valve is electrically connected to the control component.

[0012] Furthermore, the control components include a controller, a temperature sensor, a timer, and a temperature display. The temperature sensor is installed inside the drying chamber and connected to the temperature display and the controller to monitor the real-time temperature inside the drying chamber. The timer is electrically connected to the controller and is used to set the spray interval and the duration of a single spray. The delivery pump, liquid level sensor, and motor are connected to the controller via cables. The controller is connected to a remote terminal via a wireless communication module.

[0013] Compared with the prior art, the beneficial effects of this utility model are: (1) High safety: No manual entry into the high-temperature baking room is required. Automatic spraying of bacteria is achieved through control components, which avoids the safety risks of high-temperature environment to operators; (2) Good uniformity of spraying bacteria: Through the interval distribution design of branch pipes and atomizing nozzles, combined with adjustable atomized particles and pressure, it is ensured that the bacteria agent is evenly covered in the curing room, improving the consistency of bacteria on tobacco leaves in different positions and greatly improving the curing quality of tobacco leaves. (3) High level of intelligence: The spraying time and stirring frequency can be set by the controller, and adaptive adjustment can be achieved by combining the feedback of temperature sensor and liquid level sensor. It also supports remote monitoring and operation, reducing manual management costs. (4) Strong adaptability: The spraying pressure can be adjusted according to different stages of tobacco curing, and the stirrer avoids the layering of the agent, ensuring the effect of the agent and adapting to the spraying needs of the entire tobacco curing process.

[0014] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of the microbial agent storage component and the conveying component provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a spraying component provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the connection structure of the control component provided in an embodiment of the present invention.

[0016] In the diagram: 1. Microbial agent storage assembly; 101. Storage tank; 102. Motor; 103. Sealing cover; 104. Feeding port; 105. Insulation layer; 106. Agitator; 107. Observation window; 108. Liquid level sensor; 109. Cooling water inlet; 110. Liquid outlet; 111. Support; 112. Air inlet; 113. Exhaust port; 114. Cooling water outlet; 2. Conveying assembly; 201. Conveying pump input; 202. Conveying pump; 203. Conveying pump Output end; 204, Filter; 205, Delivery pipe; 206, Pressure regulating valve; 3, Spraying assembly; 301, Main pipe; 302, Branch pipe; 303, Atomizing nozzle; 304, Mounting hole; 305, Pipe clamp; 4, Control assembly; 401, Timer; 402, Temperature display; 403, Controller; 404, Wireless communication module; 405, Remote terminal; 406, Cable; 407, Temperature sensor; 5, Drying room; 501, Ventilation outlet. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0018] like Figures 1-3 As shown, the first embodiment of this utility model provides a spraying device for tobacco curing barns, comprising: Microbial agent storage component 1 is located on one side of the drying room 5 and is used for storing microbial agents; The conveying component 2 has its inlet end connected to the outlet of the microbial agent storage component 1 and its outlet end connected to the drying room 5, which is used to convey the microbial agent in the microbial agent storage component 1 to the drying room 5. Spraying component 3 is installed on the upper part of the inner wall and the roof of the drying room 5 and is connected to the feed end of the conveying component 2 for uniform spraying of microbial agent. Control component 4 is electrically connected to microbial agent storage component 1, conveying component 2, and spraying component 3, and is used to enable each component to work together to achieve automatic and uniform spraying of microbial agents into the drying room. The microbial agent storage component 1 includes a storage tank 101, which is supported by a bracket 111. The storage tank 101 is wrapped with an insulation layer 105. A feeding port 105 is provided at the top, and a sealing cap 103 is detachably connected to the feeding port 105. A liquid outlet 110 is provided at the bottom. Multiple liquid outlets 110 are provided to facilitate the installation and arrangement of the conveying component 2, or to allow simultaneous use for microbial spraying operations in multiple drying rooms.

[0019] An exhaust port 113 is provided at the top of the storage tank 101, and an air inlet 112 is provided at the bottom. The air inlet 112 and the exhaust port 113 are used together to supply sterile air to the storage tank 101 to ensure the activity of the bacteria.

[0020] A liquid level sensor 108 is installed inside the storage tank 101 to monitor the remaining amount of bacterial agent in real time.

[0021] An observation window 107 is provided on the side of the storage tank 101, which allows for real-time observation of the bacterial agent in the storage tank.

[0022] The storage tank 101 is also equipped with a stirrer 106, which is connected to a motor 102 located on the top of the storage tank 101. The motor 102 is connected to a control component 4, which controls the motor 102 to drive the stirrer 106 to agitate the inoculum. The stirring frequency of the stirrer 106 can be set by the control component 4, such as stirring once every 1-2 hours for 5-10 minutes each time, to prevent the inoculum from settling and to ensure uniform concentration.

[0023] The inoculum storage tank 101 has a capacity of 50-100L, suitable for single-spray inoculum needs in small and medium-sized tobacco curing barns. The insulation layer 105 uses polyurethane insulation material with a thickness of 5-8mm to prevent external temperatures from affecting the activity of the inoculum within the storage tank 101. The feeding port 105 has a diameter of 10-15cm for easy addition of inoculum, and the sealing cap 103 uses a silicone sealing ring to prevent inoculum evaporation. The level sensor 108 is an immersion-type level transmitter with a measurement range of 0-100cm and an accuracy of ±1%, transmitting inoculum remaining data to the control component 4 in real time.

[0024] A water-cooling cavity is also provided between the storage tank 101 and the insulation layer 105. An inlet pipe 109 and a return pipe 114, which communicate with the water-cooling cavity, are provided at the bottom and top of the storage tank 101. The inlet pipe 109 is connected to the outlet of the water-cooling equipment, and the return pipe 114 is circulated to the return outlet of the water-cooling equipment. The water-cooling cavity further prevents external temperature from affecting the activity of the microbial agents inside the storage tank 101.

[0025] The delivery assembly 2 includes a delivery pump 202. The pump input 201 is connected to the outlet 110 of the storage tank via a pipe, and the pump output 203 is connected to the delivery pipe 205. A filter 204 is connected in series between the pump output 203 and the delivery pipe 205 to filter impurities in the bacterial agent and prevent clogging of the spraying assembly 3.

[0026] Specifically, the delivery pump 202 is a miniature corrosion-resistant centrifugal pump, such as a centrifugal pump with a flow rate of 10-20 L / min and a head of 5-10 m, suitable for the delivery requirements of the microbial agent; the filter 204 has a filtration accuracy of 50 μm, uses a stainless steel filter screen, and is removable for cleaning. The delivery pipe 205 is made of food-grade PVC pipe with an inner diameter of 15-20 mm to avoid chemical reaction with the microbial agent.

[0027] The spraying component 3 includes a main pipe 301, branch pipes 302, and atomizing nozzles 303. The main pipe 301 is installed on the upper part of the inner wall of the drying room 5 along the length of the drying room 5. One end of the main pipe 301 is connected to the conveying pipe 205 of the conveying component, and the other end is sealed. The branch pipes 302 are multiple pieces perpendicular to the main pipe and distributed at intervals. One end of the branch pipes 302 is connected to the main pipe 301, and the other end extends to the roof of the drying room 5 and is sealed. Several mounting holes 304 are evenly opened on the main pipe 301 and the branch pipes 302, and the atomizing nozzles 303 are installed in the mounting holes 304 respectively.

[0028] The main pipe 301 and the branch pipe 302 can be fixed inside the baking chamber 5 by several pipe clamps 305 distributed on the inner wall and roof of the baking chamber 5 to ensure that they will not fall off.

[0029] Specifically, both the main pipe 301 and the branch pipes 302 are made of the same food-grade PVC pipe as the conveying pipe 205. The length of the branch pipes 302 is adapted to the width of the drying room, and the spacing between adjacent branch pipes 302 is 80-120cm. Each branch pipe 302 is equipped with 3-5 atomizing nozzles 303, and the spacing between adjacent atomizing nozzles 303 is 30-40cm.

[0030] The atomizing nozzle 303 is a conical atomizing nozzle made of plastic, with an angle adjustable from 30-60°. The atomized particle diameter is 50-100μm, ensuring that the microbial agent evenly covers the surface of the tobacco leaves in a mist form, and preventing the microbial agent from condensing into water droplets and wetting the tobacco leaves. Preferably, the atomizing nozzle 303 faces the tobacco leaf placement area inside the curing barn 5. The horizontal distance between the atomizing nozzle 303 and the tobacco leaves is 50-80cm. The conical atomizing nozzle can be a Spraying Systems Co. 1 / 4W series spiral nozzle, a Lechler LX series spiral nozzle, a BETE TF series spiral nozzle, a Spraying Systems Co. SU series air atomizing nozzle, or a Schlick 970 series air atomizing nozzle, etc.

[0031] A pressure regulating valve 206 is provided at the connection between the conveying pipe 205 and the main pipe 301. The pressure regulating valve 206 is electrically connected to the control component 4. The control component 4 can adjust the pressure of the microbial agent in the conveying pipe 205 (the pressure adjustment range is 0.2-0.5MPa) according to the different stages of tobacco curing in the curing barn (such as the yellowing stage, the color fixing stage, and the dry rib stage) to adapt to the spraying requirements of different stages.

[0032] The control component 4 includes a controller 403, a temperature sensor 407, a timer 401, and a temperature display 402. The temperature sensor 407 is installed inside the drying chamber 5 and connected to the temperature display 402 and the controller 401 to monitor the real-time temperature inside the drying chamber 5. The timer 401 is electrically connected to the controller 403 and is used to set the spray interval and the duration of a single spray. The delivery pump 202, the liquid level sensor 108, and the motor 102 are respectively connected to the controller 403 via cables 406.

[0033] The control component 4 also includes a wireless communication module 404, through which the controller 403 connects to a remote terminal 405. The remote terminal 405 can be a computer, smartphone, etc. Staff can remotely view the temperature, remaining inoculant level, and spraying status inside the curing chamber 5, and can remotely set spraying parameters without on-site operation.

[0034] Specifically, controller 401 uses an S7-200 PLC controller. Temperature sensor 407 is a thermocouple temperature sensor with a measurement range of 0-100℃ and an accuracy of ±0.5℃. It is installed in the middle of the drying chamber 5, 1.5-2m above the ground. Timer 401 can be set for the duration of a single spray (10-30 min) and the time interval (6-12 h). Wireless communication module 404 uses a GPRS module to support real-time data interaction with remote terminal 405. When liquid level sensor 108 detects that the remaining agent is less than 10%, controller 403 sends an alarm message to remote terminal 405 through wireless communication module 405. When temperature sensor 407 detects that the temperature of drying chamber 5 exceeds 65℃, controller 403 automatically stops delivery pump 202 and stops spraying to avoid high temperature damaging the activity of the agent.

[0035] Working principle and process of the device: (1) Before use, add bacterial agent into the storage tank 101 through the feeding port 104 and tighten the sealing cap 103; (2) Parameters are set via remote terminal 405: the stirrer 106 is operated by motor 102, stirring once every 1.5 hours for 8 minutes each time; the spraying interval is 8 hours, and the duration of a single spraying is 20 minutes; the spraying pressure is 0.3 MPa; the temperature safety threshold is 65℃. (3) During the baking process, the controller 403 starts the stirrer 106 according to the set parameters to avoid the stratification of the microbial agent; when the spraying time is reached, the controller 403 starts the delivery pump 202. After the microbial agent is filtered by the filter 204, it enters the main pipeline 301 through the delivery pipe 205 and the pressure regulating valve 206, and then is atomized by the atomizing nozzle 303 through the branch pipeline 302 and sprayed onto the surface of the tobacco leaves; during the spraying process, the temperature sensor 407 monitors the temperature of the baking room 5 in real time. If it exceeds 65℃, the controller 403 immediately stops the delivery pump 202; the liquid level sensor 108 monitors the remaining amount of microbial agent in real time. When it is lower than 10%, it alarms the remote terminal 405 to remind the user to replenish the microbial agent.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to restrict the present utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments without departing from the technical solution of the present utility model and based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A microbial spraying device for tobacco curing barns, characterized in that, include: Microbial agent storage component (1), wherein the microbial agent storage component (1) is disposed on one side of the drying room (5) for storing microbial agents; The conveying component (2) is connected to the liquid outlet of the microbial agent storage component (1) at its inlet end and connected to the drying room (5) at its outlet end, and is used to convey the microbial agent in the microbial agent storage component (1) to the drying room (5). Spraying component (3), the spraying component (3) is set on the upper part of the inner side wall and the roof of the drying room (5), and is connected to the feed end of the conveying component (2) for uniform spraying of the microbial agent; The control component (4) is electrically connected to the microbial agent storage component (1), the conveying component (2), and the microbial spraying component (3) to enable the components to work together to achieve automatic and uniform microbial spraying into the drying room.

2. The tobacco curing barn spraying device according to claim 1, characterized in that, The microbial agent storage component (1) includes a microbial storage tank (101), which is supported by a bracket (111). The outside of the microbial storage tank (101) is wrapped with an insulation layer (105). A feeding port (104) is provided at the top. A sealing cap (103) is detachably connected to the feeding port (104). A liquid outlet (110) is provided at the bottom.

3. The tobacco curing barn spraying device according to claim 2, characterized in that, An exhaust port (113) is provided at the top of the storage tank (101), and an air inlet (112) is provided at the bottom. The air inlet (112) and the exhaust port (113) are used together to supply sterile air to the storage tank (101) to ensure the activity of the bacteria.

4. The tobacco curing barn spraying device according to claim 3, characterized in that, A water-cooling cavity is provided between the storage tank (101) and the insulation layer (105). A water inlet pipe (109) and a water return pipe (114) that are connected to the water-cooling cavity are provided at the bottom and top of the storage tank (101). The water inlet pipe (109) is connected to the water outlet of the water-cooling equipment, and the water return pipe (114) is circulated to the water return port of the water-cooling equipment.

5. The tobacco curing barn spraying device according to claim 2, characterized in that, The storage tank (101) is also equipped with a stirrer (106). The stirrer (106) is connected to a motor (102) located on the top of the storage tank (101). The motor (102) is connected to a control component (4). The control component (4) controls the motor (102) to drive the stirrer (106) to achieve stirring of the microbial agent.

6. The tobacco curing barn spraying device according to claim 2, characterized in that, A liquid level sensor (108) is provided inside the storage tank (101); an observation window (107) is provided on the side of the storage tank (101).

7. The tobacco curing barn spraying device according to any one of claims 1-6, characterized in that, The delivery assembly (2) includes a delivery pump (202), the delivery pump input end (201) is connected to the liquid outlet of the bacterial agent storage assembly (1) through a pipe, the delivery pump output end (203) is connected to the delivery pipe (205), and a filter (204) is connected in series between the delivery pump output end (203) and the delivery pipe (205).

8. The tobacco curing barn spraying device according to claim 7, characterized in that, The spraying component (3) includes a main pipe (301), branch pipes (302) and atomizing nozzles (303). The main pipe (301) is installed on the upper part of the inner wall of the drying room (5) along the length of the drying room (5). One end of the main pipe (301) is connected to the conveying pipe (205) of the conveying component, and the other end is sealed. The branch pipes (302) are multiple pieces perpendicular to the main pipe and distributed at intervals. One end of the branch pipes (302) is connected to the main pipe (301), and the other end extends to the roof of the drying room (5) and is sealed at the end. Several mounting holes (304) are evenly opened on the main pipe (301) and the branch pipes (302), and the atomizing nozzles (303) are installed in the mounting holes (304) respectively.

9. The tobacco curing barn spraying device according to claim 8, characterized in that, A pressure regulating valve (206) is provided at the connection between the delivery pipe (205) and the main pipe (301), and the pressure regulating valve (206) is electrically connected to the control component (4).

10. The tobacco curing barn spraying device according to claim 9, characterized in that, The control component (4) includes a controller (403), a temperature sensor (407), a timer (401), and a temperature display (402). The temperature sensor (407) is installed in the drying room (5) and connected to the temperature display (402) and the controller (403) to monitor the real-time temperature in the drying room (5). The timer (401) is electrically connected to the controller (403) to set the spraying time interval and the duration of a single spraying. The delivery pump (202), the liquid level sensor (108), and the motor (102) are connected to the controller (403) via cables (406). The controller (403) is connected to a remote terminal (405) via a wireless communication module (404).

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