Automatic cleaning device for main mesh belt of threshing and redrying machine
By designing an automatic cleaning device on the main conveyor belt of the leaf re-drying machine, and using a combination of mechanical and thermal energy to remove dirt, the problem of dirt accumulation on the main conveyor belt has been solved, achieving efficient cleaning and stable production.
Patent Information
- Application Number
- CN202520165787.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-24
AI Technical Summary
In existing technologies, dust, tar, and tobacco leaf debris easily accumulate on the main conveyor belt of the tobacco leaf re-drying machine, leading to the formation of a dirt layer, which affects the quality of tobacco leaves and production efficiency. Furthermore, manual cleaning is time-consuming, labor-intensive, and dangerous.
Design an automatic cleaning device comprising a first cleaning brush roller, a high-temperature steam pipe, a second cleaning brush roller, and a high-temperature compressed air pipe, which automatically cleans the main conveyor belt and removes dirt through a combination of mechanical and thermal energy.
It achieves automatic and efficient cleaning of the main conveyor belt, reduces dirt adhesion, ensures stable operation of the re-drying machine, improves production efficiency, reduces machine failure rate and labor costs, and guarantees tobacco quality and production line continuity.
Smart Images
Figure CN223659118U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a threshing and redrying equipment technical field especially relates to a kind of automatic cleaning device of main net belt of threshing and redrying machine. BACKGROUND
[0002] Threshing and redrying is a key link in the production of cigarette industry, and plays an indispensable role in improving tobacco quality, optimizing tobacco utilization efficiency and ensuring the stability of cigarette product quality. In the process of threshing and redrying, the redrying machine plays a crucial role, which can uniformly dry the leaf blades treated by leaf and stem separation to the preset moisture content standard. However, in this process, dust, tobacco oil and tobacco fines and other by-products will inevitably be produced, which can easily accumulate on the inner side of the main net belt of the redrying machine. With the continuous operation of the redrying machine, these substances will gradually form a dirt layer that is difficult to remove due to compression. The accumulation of such dirt not only may cause secondary pollution of tobacco, leading to serious quality problems of finished tobacco, resulting in economic losses; moreover, with the passage of time, the increase and hardening of dirt may cause the running of the net belt to be stuck, and even cause the tearing and damage of the main net belt, production line shutdown and other faults, further affecting the production progress and economic benefits of enterprises; and dirt may also cause the blockage of the mesh part, affecting the uniformity of the air field in the redrying machine, and ultimately affecting the uniformity of tobacco moisture, thereby affecting the quality of cigarette products.
[0003] To solve this problem, redrying processing enterprises need to take effective cleaning and maintenance measures, and regularly clean the redrying machine to prevent dirt accumulation. At present, most enterprises choose to stop production for a period of time and perform routine maintenance and repair of damaged parts, or choose to perform routine maintenance and repair of damaged parts for a period of time after the end of a production season. During maintenance and repair, the attached dirt on the main net belt of the redrying machine is generally cleaned by manual cleaning brush. However, this cleaning method requires operators to go to the bottom of the main net belt for processing after stopping production, which is not only time-consuming and labor-intensive, but also has certain risk factors. Moreover, due to the stubbornness of dirt, it may not be removed effectively, resulting in wasted working hours, reduced production efficiency and increased maintenance costs.
[0004] Therefore, there is an urgent need for an automatic cleaning device for the main net belt of a threshing and redrying machine to solve the above technical problems. UTILITY MODEL CONTENTS
[0005] Based on the above, the purpose of the present utility model is to provide a main net belt automatic cleaning device of a threshing and redrying machine, which can realize automatic and efficient cleaning of the main net belt, reduce the adhesion and accumulation of dirt on the main net belt, ensure the efficient and stable operation of the redrying machine, thereby guaranteeing the quality of tobacco products and the continuity of the production line, avoiding unnecessary economic losses, and improving production efficiency and avoiding dangerous factors during manual cleaning.
[0006] To achieve this purpose, the present utility model adopts the following technical solutions:
[0007] The main net belt automatic cleaning device of the threshing and redrying machine is used for cleaning the main net belt, the main net belt is rotatably arranged between transmission wheels, the transmission wheels are installed on a rack, the main net belt includes an upper net belt above the transmission wheels and a lower net belt below the transmission wheels, and the main net belt automatic cleaning device of the threshing and redrying machine comprises:
[0008] The first cleaning brush roller is installed on the rack and located below the lower net belt, and is used for cleaning the lower net belt;
[0009] The high-temperature steam pipeline is installed on the rack and located downstream of the first cleaning brush roller, and is used for spraying high-temperature steam from both sides of the lower net belt in the width direction;
[0010] The second cleaning brush roller is installed on the rack, located below the lower net belt, and located downstream of the high-temperature steam pipeline, and is used for cleaning the lower net belt after high-temperature steam treatment;
[0011] The high-temperature compressed air pipeline is installed on the rack and located downstream of the second cleaning brush roller, and is used for spraying high-temperature compressed air from both sides of the lower net belt in the width direction;
[0012] The partition plate is installed on the rack, located between the upper net belt and the lower net belt, and used for blocking steam; the partition plate is arranged obliquely downward, and steam condensate can flow down along the lower surface of the partition plate after being condensed and liquefied.
[0013] In some possible embodiments, a first motor and a second motor are further included, the first motor and the second motor are respectively installed on the rack, an output shaft of the first motor is in driving connection with a roller shaft of the first cleaning brush roller, and an output shaft of the second motor is in driving connection with a roller shaft of the second cleaning brush roller.
[0014] In some possible embodiments, the first cleaning brush roller is adjustably arranged on the rack in the vertical direction, and the second cleaning brush roller is adjustably arranged on the rack in the vertical direction.
[0015] In some possible implementation manners, the high-temperature steam pipe is made of stainless steel, and the high-temperature compressed air pipe is made of stainless steel.
[0016] In some possible implementation manners, the brush of the first cleaning brush roller is a long and hard brush, and the brush of the second cleaning brush roller is a short and soft brush.
[0017] In some possible implementation manners, the rotating direction of the first cleaning brush roller is opposite to the conveying direction of the lower side mesh belt at the contact position of the first cleaning brush roller and the lower side mesh belt, and the rotating direction of the second cleaning brush roller is the same as the conveying direction of the lower side mesh belt at the contact position of the second cleaning brush roller and the lower side mesh belt.
[0018] In some possible implementation manners, the water guide pipe is arranged at the lower end of the partition plate in the inclined direction, and is used for guiding the condensed water on the lower surface of the partition plate, and the water collector is arranged below the outlet of the water guide pipe, and is used for receiving the condensed water discharged by the water guide pipe.
[0019] In some possible implementation manners, the dust collecting box is arranged below the first cleaning brush roller, the high-temperature steam pipe, the second cleaning brush roller and the high-temperature compressed air pipe, and is used for receiving the dust and broken tobacco.
[0020] In some possible implementation manners, the high-temperature steam pipe comprises a main pipe, two branch pipes and two spray pipes, the main pipe is connected with the two branch pipes through a first pipe connector respectively, the two branch pipes are connected with the two spray pipes through two second pipe connectors respectively, the main pipe is used for being connected with an external high-temperature steam machine, and the two spray pipes are arranged on the two sides of the lower side mesh belt in the width direction respectively, and are used for spraying high-temperature steam to the lower side mesh belt.
[0021] The utility model discloses the beneficial effects of:
[0022] The automatic cleaning device of the main net belt of the threshing and redrying machine provided by the utility model firstly removes most of the dust and broken tobacco on the main net belt through the first cleaning brush roller; then the main net belt is flushed through the high-temperature steam pipeline, so that the tobacco tar and residual dust and broken tobacco adhered to the main net belt are more easily removed; finally, dry gas is sprayed to the main net belt through the high-temperature compressed air pipeline, so that the main net belt is finally cleaned and dried.
[0023] The utility model realizes the automatic and efficient cleaning of the main net belt, reduces the adhesion and accumulation of dirt on the main net belt, ensures the efficient and stable operation of the redrying machine, thereby guaranteeing the quality of tobacco products and the continuity of the production line, reducing the machine failure rate, reducing the machine maintenance cost, avoiding unnecessary economic losses; the utility model effectively improves the tobacco redrying production efficiency, enhances the market competitiveness of enterprises, saves the artificial cleaning cost, and avoids the dangerous factors during artificial cleaning. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 is the structure schematic view of the automatic cleaning device of the main net belt of the threshing and redrying machine and the main net belt provided by the utility model embodiment;
[0025] Figure 2 is the top view schematic view (not showing the baffle and the dust collecting box) of the automatic cleaning device of the main net belt of the threshing and redrying machine provided by the utility model embodiment;
[0026] Figure 3 is the structure schematic view of the baffle, the water guide pipe and the water collector related by the utility model embodiment;
[0027] Figure 4 is the movement direction schematic view of the first cleaning brush roller, the second cleaning brush roller and the lower net belt related by the utility model embodiment;
[0028] Figure 5 is the structure schematic view of the high-temperature steam pipeline related by the utility model embodiment.
[0029] In the drawing:
[0030] 100, main net belt; 101, upper net belt; 102, lower net belt; 200, transmission wheel; 300, rack;
[0031] 1. first cleaning brush roller; 2. second cleaning brush roller; 3. high-temperature steam pipe; 3a. main pipe; 3b. first pipe connector; 3c. branch pipe; 3d. second pipe connector; 3e. spray pipe; 4. partition plate; 5. water guide pipe; 6. water collector; 7. first motor; 8. second motor; 9. high-temperature compressed air pipe; 10. dust collection box. DETAILED DESCRIPTION
[0032] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model and are not limited to the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, not all structures.
[0033] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0034] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first feature and the second feature are in direct contact, or that the first feature and the second feature are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0035] In the description of the utility model, the terms "upper", "lower", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in description and have no special meaning.
[0036] As Figures 1 to 5As shown, the embodiment provides an automatic cleaning device for the main net belt of a threshing and redrying machine, which is used for cleaning the main net belt 100 of the threshing and redrying machine, effectively solving the problem of accumulation of adherents such as tobacco tar, dust and tobacco leaf powder on the main net belt 100 during the production process, and thus forming a dirt layer. The device not only can effectively prevent the pollution of the dirt layer to the tobacco leaf, avoid the decrease of the quality of the finished tobacco leaf and potential economic losses caused thereby, but also can treat the dirt in real time, prevent the accumulation of the dirt from causing the poor running of the main net belt 100, the tearing of the main net belt 100 and the shutdown of the production line and other adverse conditions, reduce the machine failure rate and the machine maintenance cost by ensuring the stable running of the redrying machine, and thus improve the production efficiency and economic benefits of the enterprise.
[0037] In the embodiment, the threshing and redrying machine includes a rack 300, two or more transmission wheels 200 mounted on the rack 300, and a main net belt 100 rotationally connected between the transmission wheels 200. The main net belt 100 is used for conveying tobacco leaves, wherein the main net belt 100 running above the transmission wheel 200 is an upper net belt 101, and the main net belt 100 running below the transmission wheel 200 is a lower net belt 102. In the embodiment, the entire automatic cleaning process is performed at the front end of the drying area of the redrying process, specifically at the position where the lower net belt 102 rotates upward.
[0038] The automatic cleaning device for the main net belt of the threshing and redrying machine provided by the embodiment includes a first cleaning brush roller 1, a second cleaning brush roller 2, a high-temperature steam pipeline 3, a partition plate 4 and a high-temperature compressed air pipeline 9.
[0039] The first cleaning brush roller 1 is mounted on the rack 300 and located below the lower net belt 102, and is used for preliminarily cleaning the dust and leaf powder in the main net belt 100. Preferably, the bristles of the first cleaning brush roller 1 are hard bristles with a relatively large length and thickness, which can cover a large area and remove most of the dust and tobacco powder on the main net belt 100.
[0040] The high-temperature steam pipeline 3 is mounted on the rack 300 and located downstream of the first cleaning brush roller 1 along the conveying direction of the main net belt 100, and the high-temperature steam pipeline 3 is used for spraying high-temperature steam from both sides of the lower net belt 102 in the width direction. In the embodiment, the high-temperature steam pipeline 3 needs to fully ensure that the high-temperature steam can completely cover the main net belt 100 of the threshing and redrying machine on the same horizontal line. By spraying high-temperature steam, on the one hand, the main net belt 100 can be washed, and on the other hand, the high-temperature steam is beneficial to the dissolution of tobacco tar, so that the tobacco tar and other dirt on the main net belt 100 are more easily detached.
[0041] The second cleaning brush roller 2 is installed on the rack 300 below the lower net belt 102 and downstream of the high-temperature steam pipeline 3, and is used to clean the lower net belt 102 after high-temperature steam treatment. Preferably, the bristles of the second cleaning brush roller 2 are thin and short and are soft, which can provide more detailed cleaning effect and better remove dust and broken tobacco remaining in the holes of the main net belt 100; and through the friction between the bristles of the second cleaning brush roller 2 and the main net belt 100, the tobacco tar adhered to the main net belt 100 can be effectively removed.
[0042] The high-temperature compressed air pipeline 9 is installed on the rack 300 and downstream of the second cleaning brush roller 2, and is used to spray high-temperature compressed air from both sides of the lower net belt 102 in the width direction. The air volume of the high-temperature compressed air pipeline 9 needs to fully ensure that the compressed air can completely cover the main net belt 100 of the threshing and redrying machine on the same horizontal line. The high-temperature compressed air pipeline 9 is used to complete the last cleaning work of the present process, so that the loose dust and broken leaves still adhered to the main net belt 100 can be effectively removed; more importantly, the moisture control requirement is higher during the tobacco redrying process, and the high-temperature compressed air can directly transfer heat to the water molecules adhered to the surface of the main net belt 100, accelerate the evaporation process, and thus remove the water on the surface of the main net belt 100, avoiding affecting the normal redrying process of the tobacco.
[0043] The partition plate 4 is installed on the rack 300 between the upper net belt 101 and the lower net belt 102, and is used to block the steam from rising to the upper net belt 101, so as to avoid affecting the drying degree of the upper net belt 101; and the partition plate 4 is arranged to be inclined downward, so that the condensed liquid can flow out along the lower surface of the partition plate 4 after the steam is condensed on the surface of the partition plate 4. Further, as shown in the figure, the main net belt automatic cleaning device of the threshing and redrying machine further includes a water guide pipe 5 and a water collector 6. The water guide pipe 5 is arranged at the lower end of the partition plate 4 in the inclined direction, and is used to guide the condensed water on the lower surface of the partition plate 4. The water collector 6 is located below the outlet of the water guide pipe 5, and is used to collect the condensed water discharged from the water guide pipe 5. By arranging the water guide pipe 5 and the water collector 6, the condensed water formed in the device can be collected and processed at a fixed time. Figure 3
[0044] The present embodiment realizes automatic and efficient cleaning of the main net belt 100, reduces the adhesion and accumulation of dirt on the main net belt 100, ensures the efficient and stable operation of the redrying machine, thereby ensuring the quality of the tobacco product and the continuity of the production line, reducing the machine failure rate, reducing the machine maintenance cost, and avoiding unnecessary economic losses; the present embodiment effectively improves the tobacco redrying production efficiency, enhances the market competitiveness of the enterprise, saves the labor cleaning cost, and avoids the dangerous factors in manual cleaning.
[0045] Optionally, the first cleaning brush roller 1 in the embodiment is driven by the first motor 7, and the second cleaning brush roller 2 is driven by the second motor 8. Specifically, the first positioning plate and the second positioning plate are fixed on the rack 300, the seat plate of the first motor 7 is fixed on the first positioning plate by bolts, and the seat plate of the second motor 8 is fixed on the second positioning plate by bolts; the output shaft of the first motor 7 is in transmission connection with the roller shaft of the first cleaning brush roller 1, and the output shaft of the second motor 8 is in transmission connection with the roller shaft of the second cleaning brush roller 2. Preferably, the first motor 7 and the second motor 8 in the embodiment are both reduction motors, which are high in efficiency, good in reliability, long in service life, and convenient in maintenance. Of course, in other embodiments, the first cleaning brush roller 1 and the second cleaning brush roller 2 can also be driven by other ways, which are not limited to the embodiment.
[0046] Optionally, in the embodiment, the first cleaning brush roller 1 is adjustably arranged on the rack 300 in the vertical direction, and the second cleaning brush roller 2 is also adjustably arranged on the rack 300 in the vertical direction. In this way, the positions of the first cleaning brush roller 1 and the second cleaning brush roller 2 can be adaptively adjusted according to the actual height of the lower net belt 102, so that the first cleaning brush roller 1 and the second cleaning brush roller 2 can be fully in contact with the lower net belt 102, and the cleaning effect is improved. Specifically, the installation positions of the first cleaning brush roller 1 and the second cleaning brush roller 2 on the rack 300 can be manually adjusted, or the first cleaning brush roller 1 and the second cleaning brush roller 2 can be driven by a driving mechanism such as a pneumatic cylinder to move up and down, which is not limited in the embodiment.
[0047] As shown in FIG. 1, the first cleaning brush roller 1 and the second cleaning brush roller 2 are arranged on the rack 300 in the vertical direction, and the lower net belt 102 is arranged between the first cleaning brush roller 1 and the second cleaning brush roller 2. Figure 4As shown, in this embodiment, at the contact position between the first cleaning brush roller 1 and the lower mesh belt 102, the rotation direction of the first cleaning brush roller 1 is opposite to the transmission direction of the lower mesh belt 102; at the contact position between the second cleaning brush roller 2 and the lower mesh belt 102, the rotation direction of the second cleaning brush roller 2 is the same as the transmission direction of the lower mesh belt 102. For example, under the action of the drive wheel 200 of the leaf re-drying machine, the main mesh belt 100 of the re-drying machine runs counterclockwise, while the first cleaning brush roller 1, under the power of the first motor 7, also runs counterclockwise. This makes the first cleaning brush roller 1 and the lower mesh belt 102 move in opposite directions at the contact position, causing them to rub against each other, thereby better achieving the removal effect of the first cleaning brush roller 1 on the dust and tobacco leaf fragments adhering to the main mesh belt 100; simultaneously, the second cleaning brush roller 2, under the power of the second motor 7, rotates in the same direction as the lower mesh belt 102. Under the power of the machine 8, it runs in a clockwise direction, so that the second cleaning brush roller 2 and the lower mesh belt 102 move in the same direction at the contact position. This not only cleans the tobacco oil and residual tobacco fragments adhering to the main mesh belt 100, but also, since the second cleaning brush roller 2 and the first cleaning brush roller 1 rotate in opposite directions, it can apply pressure to the outside of the main mesh belt 100 at different angles, reducing damage to the main mesh belt 100 during operation and avoiding excessive wear on the main mesh belt 100 in the same direction.
[0048] Optionally, this embodiment also includes a dust collection box 10, which is located below the first cleaning brush roller 1, the high-temperature steam pipe 3, the second cleaning brush roller 2, and the high-temperature compressed air pipe 9, and is used to collect the swept dust and soot. By setting up the dust collection box 10, it is convenient to collect and process the cleaned dust, soot, grease, and other dirt, avoiding the trouble of workers cleaning again.
[0049] Optionally, such as Figure 5 As shown, the high-temperature steam pipe 3 in this embodiment includes a main pipe 3a, two branch pipes 3c, and two ejector pipes 3e. The main pipe 3a is connected to the two branch pipes 3c via a first pipe connector 3b, and the two branch pipes 3c are connected to the two ejector pipes 3e via two second pipe connectors 3d. The main pipe 3a is used to connect to an external high-temperature steam generator, and the two ejector pipes 3e are located on both sides of the lower mesh belt 102 in the width direction, respectively, for injecting high-temperature steam into the lower mesh belt 102. The above arrangement enables the smooth transport of high-temperature steam within the high-temperature steam pipe 3, ensuring that the ejected high-temperature steam can fully cover the lower mesh belt 102 at the same horizontal level. Furthermore, the high-temperature compressed air pipe 9 in this embodiment has the same structure as the high-temperature steam pipe 3, and will not be described again here. Preferably, both the high-temperature steam pipe 3 and the high-temperature compressed air pipe 9 in this embodiment are made of stainless steel to improve the strength and corrosion resistance of the pipes and increase their service life.
[0050] The online automatic cleaning device for the main mesh belt of the threshing and redrying machine provided by the embodiment can be started in a cleaning mode in a regular production process, and the cleaning mode is started according to a production shift or a production day as a period, so that the tobacco tar, dust and tobacco shreds adhered to the main mesh belt 100 can be effectively and timely removed; the dust and tobacco shreds removed by the first cleaning brush roller 1 and the second cleaning brush roller 2 fall into the dust collecting box 10, and can be treated in time; the tobacco tar adhered to the main mesh belt 100 is treated by high-temperature steam and then treated by the friction of the bristles of the second cleaning brush roller 2, so that the removal effect of the oil stains on the main mesh belt 100 is more obvious; finally, the water droplets adhered to the main mesh belt 100 can be effectively removed through high-temperature compressed air cleaning and drying treatment.
[0051] After the cleaning device is used to clean the main mesh belt 100, when the main mesh belt 100 runs to the position above the threshing and redrying machine again, no dirt falls into the tobacco leaves on the main mesh belt 100, and the tobacco tar adhered to the main mesh belt 100 is more easily detached after the friction treatment of the two cleaning brush rollers and the high-temperature steam treatment, so that the phenomenon that the dirt adheres and accumulates to hinder the normal operation of the transmission chain is changed, and the problem of shutdown for maintenance is avoided; in addition, the problem that the dirt adhered to the main mesh belt 100 of the threshing and redrying machine falls into the tobacco leaves to cause secondary pollution is also avoided. Therefore, the device can effectively improve the production efficiency of the tobacco redrying, ensure the quality of the tobacco leaves and save the labor cleaning cost.
[0052] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, all the embodiments need not to be exhausted. Any modification, equivalent replacement and improvement made in the spirit and principle of the utility model should be included in the protection scope of the utility model claim.
Claims
1. An automatic cleaning device for the main conveyor belt of a leaf re-drying machine, used for cleaning the main conveyor belt (100), wherein the main conveyor belt (100) is rotatably disposed between transmission wheels (200), the transmission wheels (200) are mounted on a frame (300), and the main conveyor belt (100) includes an upper conveyor belt (101) located above the transmission wheels (200) and a lower conveyor belt (102) located below the transmission wheels (200), characterized in that, The automatic cleaning device for the main mesh belt of the leaf-re-drying machine includes: The first cleaning brush roller (1) is mounted on the frame (300) and located below the lower mesh belt (102) for cleaning the lower mesh belt (102); A high-temperature steam pipe (3) is installed on the frame (300) and is located downstream of the first cleaning brush roller (1) for spraying high-temperature steam onto the lower mesh belt (102) from both sides in the width direction of the lower mesh belt (102). The second cleaning brush roller (2) is installed on the frame (300), located below the lower mesh belt (102) and downstream of the high-temperature steam pipe (3), and is used to clean the lower mesh belt (102) after high-temperature steam treatment; A high-temperature compressed air duct (9) is installed on the frame (300) and is located downstream of the second cleaning brush roller (2) for spraying high-temperature compressed air onto the lower mesh belt (102) from both sides in the width direction of the lower mesh belt (102). A baffle (4) is installed on the frame (300) and located between the upper mesh belt (101) and the lower mesh belt (102) to block steam. The baffle (4) is inclined downward so that the steam can flow down the lower surface of the baffle (4) after condensation and liquefaction.
2. The automatic cleaning device for the main mesh belt of the leaf-re-drying machine according to claim 1, characterized in that, It also includes a first motor (7) and a second motor (8), which are respectively mounted on the frame (300). The output shaft of the first motor (7) is connected to the roller shaft of the first cleaning brush roller (1), and the output shaft of the second motor (8) is connected to the roller shaft of the second cleaning brush roller (2).
3. The automatic cleaning device for the main mesh belt of the leaf-re-drying machine according to claim 1, characterized in that, The first cleaning brush roller (1) is adjustable in position along the vertical direction on the frame (300), and the second cleaning brush roller (2) is adjustable in position along the vertical direction on the frame (300).
4. The automatic cleaning device for the main mesh belt of the leaf-re-drying machine according to claim 1, characterized in that, The high-temperature steam pipe (3) is made of stainless steel, and the high-temperature compressed air pipe (9) is made of stainless steel.
5. The automatic cleaning device for the main mesh belt of the leaf-re-drying machine according to claim 1, characterized in that, The first cleaning brush roller (1) has coarse and long hard bristles, while the second cleaning brush roller (2) has fine and short soft bristles.
6. The automatic cleaning device for the main mesh belt of the leaf-re-drying machine according to claim 1, characterized in that, At the contact position between the first cleaning brush roller (1) and the lower mesh belt (102), the rotation direction of the first cleaning brush roller (1) is opposite to the transmission direction of the lower mesh belt (102); at the contact position between the second cleaning brush roller (2) and the lower mesh belt (102), the rotation direction of the second cleaning brush roller (2) is the same as the transmission direction of the lower mesh belt (102).
7. The automatic cleaning device for the main mesh belt of the leaf-re-drying machine according to claim 1, characterized in that, It also includes a water pipe (5) and a water collector (6). The water pipe (5) is located at the lower end of the partition (4) along the inclined direction and is used to drain the condensate on the lower surface of the partition (4). The water collector (6) is located below the outlet of the water pipe (5) and is used to collect the condensate discharged by the water pipe (5).
8. The automatic cleaning device for the main mesh belt of the leaf-re-drying machine according to claim 1, characterized in that, It also includes a dust collection box (10), which is located below the first cleaning brush roller (1), the high-temperature steam pipe (3), the second cleaning brush roller (2) and the high-temperature compressed air pipe (9), and is used to collect the swept dust and smoke.
9. The automatic cleaning device for the main mesh belt of the leaf-re-drying machine according to any one of claims 1-8, characterized in that, The high-temperature steam pipeline (3) includes a main pipeline (3a), two branch pipelines (3c) and two ejector pipelines (3e). The main pipeline (3a) is connected to the two branch pipelines (3c) respectively through a first pipeline connector (3b). The two branch pipelines (3c) are connected to the two ejector pipelines (3e) one-to-one through two second pipeline connectors (3d). The main pipeline (3a) is used to connect to an external high-temperature steam engine. The two ejector pipelines (3e) are located on both sides of the width direction of the lower mesh belt (102) and are used to inject high-temperature steam into the lower mesh belt (102).