CN114408620A - Feeding and dust removing device of tobacco leaf chip processing and recycling production line - Google Patents
Feeding and dust removing device of tobacco leaf chip processing and recycling production line Download PDFInfo
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- CN114408620A CN114408620A CN202210141549.7A CN202210141549A CN114408620A CN 114408620 A CN114408620 A CN 114408620A CN 202210141549 A CN202210141549 A CN 202210141549A CN 114408620 A CN114408620 A CN 114408620A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
- B65G69/185—Preventing escape of dust by means of non-sealed systems
- B65G69/186—Preventing escape of dust by means of non-sealed systems with aspiration means
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/10—Roasting or cooling tobacco
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/16—Classifying or aligning leaves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/04—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials
- B65G69/0458—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials with rotating means, e.g. tables, arms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
Abstract
The invention provides a feeding and dust removing device of a tobacco scrap processing and recycling production line, which is arranged in front of the tobacco scrap processing and recycling production line, wherein a negative pressure air pipe is connected with other negative pressure conveying pipelines; comprises a feeding platform, a dust collecting cover, a negative pressure air pipe, an air flow control valve, a negative pressure branch pipe, a material uniform distribution device, a material lifter, a conveying belt, a transmission system and the like. The two ends of the material uniform distribution device are respectively connected with a feeding platform and a material hoister, and the material hoister is connected with a tobacco leaf scrap processing and recycling production line process; dust collecting covers are respectively designed above the feeding platform and at the top of the material uniform distribution device, and negative pressure branch pipes are respectively designed at the top of the dust collecting covers and are collected on the negative pressure air pipes; air flow control valves are respectively arranged on each negative pressure branch pipe and the negative pressure air pipe, and the air pressure difference and the air speed of each negative pressure branch pipe and the negative pressure air pipe are adjusted to ensure that the dust removal effect is optimal; the invention is convenient for manual feeding, eliminates the tobacco dust generated in the feeding and distributing process of tobacco scraps in time and improves the dustless production level.
Description
Technical Field
The invention relates to the technical field of tobacco processing, in particular to a feeding and dust removing device for a tobacco shred processing and recycling production line, which aims at feeding tobacco shreds and removing and conveying ash and dust generated in the uniform distribution process of a material elevator.
Background
In the tobacco industry, each tobacco leaf fragment generated in threshing and redrying workshops is a relatively complex mixture and contains precious tobacco leaves and tobacco stems, hemp threads, tobacco ash, dust and the like, so that the recycling, fine separation and classification of the tobacco leaf fragments are always important and difficult points of research in the tobacco processing industry.
The tobacco scraps produced in the threshing and redrying workshop mainly comprise the following links: 1) the purchased tobacco leaves are conveyed to a redrying workshop to produce broken tobacco scraps when the box is opened; 2) tobacco leaf bundle spreading and grading, and broken tobacco scraps generated in tobacco leaf sorting, and 3) cleaning broken tobacco scraps generated in a material preparation area; 4) the broken tobacco scraps produced after cleaning on each production line, each machine table or in each pipeline. It is obvious that these tobacco scraps are mixed with complex ingredients such as hemp, cotton linters, ashes, powders, dusts, etc., especially their ash dusts, which are very fine, easily elegant and not necessarily visible to the naked eye, nasally irritating. Therefore, to complete the separation and classification of the tobacco flakes of various specifications and sizes in the tobacco scraps, the most basic work is to remove the ash and dust in each process step and each working procedure, so that the cleanness of a working site is ensured, the health of workers is also ensured, and the targets of dust-free production and dust-free work are really implemented.
The tobacco scraps, ash, dust, and the like generated in each production line and each process of the redrying plant are collected into tobacco scraps almost after being cleaned, and if the tobacco flakes smaller than 1.5mm are collected into ash powder, the ratio is about 7.5% in general. The tobacco scraps are difficult to process, the difficulty is that manual screening and sorting are difficult, dust is large, environmental pollution is large, non-tobacco impurities are more, and large pieces of tobacco stems and large pieces of non-tobacco impurities which are easy to remove are easy to sort, so that the tobacco scraps are easy to recycle, the most basic technology is a processing technology for solving the pollution of cigarette ash and dust, and if the tobacco scraps are produced according to the general production of a threshing and redrying workshop of a Yuxi cigarette factory, about 500-700 kg of cigarette ash powder is produced every day, so that the separation, conveying, collection and the like of the cigarette ash and dust in the tobacco scraps are important technical problems of the basis in the technical scheme for recycling the tobacco scraps.
In order to complete the tobacco scrap treatment of an off-line processing and recycling production line, realize dust-free production, research on the design of a feeding platform of the tobacco scraps, and research on a dust removal method of the feeding platform aiming at the dust problem generated in the material feeding and distributing process of a uniform distribution device, is important so as to ensure the cleanness of a working site and the health of workers. The inventor of the present invention has finally obtained the present invention through a long period of research and practice.
Disclosure of Invention
In order to solve the technical problems, the invention provides a feeding and dust removing device of a tobacco scrap processing and recycling production line, which solves the problems of dust removal and separation generated in the material distribution process of an off-line processing and recycling production line and realizes dustless production.
The technical scheme adopted by the invention is as follows:
the feeding and dust removing device is arranged in front of a feeding end of the tobacco scrap processing and recycling production line and comprises a feeding platform, a material uniformly-distributing device, a material elevator and a dust removing system, wherein a discharging port of the feeding platform is communicated with a feeding port of the material uniformly-distributing device, a discharging port of the material uniformly-distributing device is communicated with a feeding port of the material elevator, and a discharging port of the material elevator conveys materials to the tobacco scrap processing and recycling production line;
the dust removal system comprises a first dust collection cover, a second dust collection cover, a first negative pressure branch pipe, a second negative pressure branch pipe, a negative pressure air pipe and a negative pressure conveying pipeline, the first dust collection cover is arranged above the feeding platform, the second dust collection cover is arranged above the material uniformly-distributing device, the first dust collection cover and the second dust collection cover are respectively communicated with the negative pressure air pipe through the first negative pressure branch pipe and the second negative pressure branch pipe, the negative pressure air pipe is communicated with the negative pressure conveying pipeline, and an outlet of the negative pressure conveying pipeline is positioned in an independent dust removal room;
and the first negative pressure branch pipe, the second negative pressure branch pipe and the negative pressure air pipe are respectively provided with an air flow control valve so as to adjust the pressure difference and the air speed of the air pressure in each pipe.
Further, the distance between the bottom end of the first dust collection cover and the feeding platform is 600-700 mm, and the second dust collection cover seals the top of the material uniform distribution device;
the diameters of the first negative pressure branch pipe and the second negative pressure branch pipe are the same as those of the negative pressure air pipe and are 160-170 mm, the pressure difference of air pressure in the first negative pressure branch pipe and the second negative pressure branch pipe is 25-35 Pa, and the air speed is 5-10 m/s.
Furthermore, the first dust collecting hood and the second dust collecting hood are both of a trapezoid table structure, the upper bottom surfaces of the first dust collecting hood and the second dust collecting hood are respectively connected with the first negative pressure branch pipe and the second negative pressure branch pipe, the lower bottom surfaces of the first dust collecting hood and the second dust collecting hood are open, and each trapezoid surface is in an isosceles trapezoid shape.
Furthermore, the upper surface of the feeding platform is a rectangle of 6000mm × 800mm, and three sides outside a discharge port of the feeding platform are respectively surrounded with a material protection plate;
the size of the lower bottom surface of the first dust collection cover is 3000mm multiplied by 900mm, the height of the first dust collection cover is 492mm, and the first dust collection cover is arranged at a position close to the discharge hole of the feeding platform.
Furthermore, the upper surface of the feeding platform is close to 3000mm sections of the material uniform distribution device in the length direction and used for feeding, and the rest 3000mm sections are used for preparing materials.
Further, the size of the lower bottom surface of the second dust collecting cover is consistent with the size of the top surface of the material uniform distribution device, and the height of the second dust collecting cover is 403 mm.
Further, the material uniform distribution device comprises a uniform distribution roller, a loquat nail is arranged on the uniform distribution roller, and the uniform distribution roller is used for uniformly paving the tobacco leaf fragments from the feeding platform on a conveying belt of the material lifting machine.
Further, be provided with circular shale shaker in the dust removal room, the suspended solid that negative pressure pipeline will collect is sent into in the circular shale shaker, three kinds of materials are separated out to the circular shale shaker: tobacco flakes, ash and dust, sesame flakes.
Compared with the prior art, the invention has the beneficial effects that:
1. because the tobacco scraps are separately processed in an off-line mode, manual feeding is needed, a manual feeding platform is designed, the length of the feeding platform reaches 6000mm, 3000mm sections below the trapezoid dust collecting cover are used for feeding, and the rest 3000mm sections are used for preparing materials, so that manual feeding can be rapidly implemented.
2. The tobacco scraps in the material preparation area are manually pushed into a feeding hole of the material uniform distribution device through the lower part of the trapezoid dust collection cover, the tobacco scraps are uniformly spread on a conveying belt of a material lifting machine by utilizing the loquat nails on the uniform distribution rollers, the tobacco ash and dust generated by manually pushing the materials and distributing the cloth by the loquat nails on the uniform distribution rollers are easy to float and can be collected into the respective dust collection covers under the action of negative pressure, the tobacco scraps are pumped away through respective negative pressure branch pipes, and the content of the dust in the original (not screened) tobacco scraps is extremely high, so the dust removal effect of the technical scheme is remarkable, and a solid foundation is laid for the subsequent dust removal process or the control of dust pollution.
3. Because the pipe diameter, the air pressure difference and the air speed are the key factors of the negative pressure dust removal effect, the design of the air flow control valves on the negative pressure branch pipe and the negative pressure air pipe is very important, and the air pressure difference and the air speed in the pipes can be adjusted by utilizing the air flow control valves so as to achieve the better dust removal effect.
4. The dust-collecting cover is designed into a trapezoidal table shape, and has strong air collecting effect according to the aerodynamic principle, thereby having good effect on negative pressure dust removal.
5. Collecting fine ground ash and dust, and processing without dust. The scheme perfectly solves the problem, collects and classifies and recycles the tobacco ash and dust, separates the tobacco ash and dust into sheet tobacco (a square tobacco sheet with the thickness of more than 1.5 mm), tobacco ash and dust and sesame sheet (a square tobacco sheet with the thickness of less than 1.5 mm), the sheet tobacco can return to a ginseng production line, the sesame sheet can be used for producing tobacco sheets, and finally, the tobacco sheets are blended to prepare shreds, so that the cigarette performance is improved; the ash source is also the best source for the formulated fertilizer. Because the quantity of the tobacco scraps produced every day in the tobacco production is large, the tobacco scraps are counted by 5T tobacco scraps every day, the cost of the raw materials is up to ten million yuan per one baking season is counted by 150 days, the dust quantity of the ash in the raw materials is considerable, and good economic benefits are produced after separation treatment.
In summary, because the cigarette ash dust is very fine and easy to float, difficult to see by naked eyes and glaring, manual feeding and uniform material distribution are designed and installed at the front part of the tobacco scrap processing and recycling production line, and dust removal conveying of the cigarette ash dust is started, so that the dust removal effect is obvious, a solid foundation is laid for the subsequent dust removal process or dust pollution control, the air quality of the production and working environment is improved, the dust-free production level is improved, and the purity of the separated tobacco flakes is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a feeding and dust removing device of a tobacco scrap processing and recycling line according to an embodiment of the present invention;
FIG. 2 is a schematic view showing the installation dimensions and layout of a feeding and dust removing device of a tobacco scrap processing and recycling line according to an embodiment of the present invention;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 shows a schematic structural view of a first dust collection cover of an embodiment of the present invention;
FIG. 5 shows a dimensional design schematic of a first dust collection enclosure of an embodiment of the present invention;
FIG. 6 is a left side view of FIG. 5;
FIG. 7 is a schematic view showing an installation structure of a second dust collecting cover and a second negative pressure branch pipe according to an embodiment of the present invention;
FIG. 8 shows a schematic dimensional design of the upper and lower bottoms of the second dust collection cover of an embodiment of the present invention;
FIG. 9 shows a highly dimensioned schematic view of a second dust collection hood of an embodiment of the present invention.
Detailed Description
The above and further features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
As shown in figure 1, the feeding and dust removing device of the tobacco scrap processing and recycling production line is arranged in front of the tobacco scrap processing and recycling production line and comprises a feeding platform 1, a material uniformly distributing device 10, a material elevator 11 and a dust removing system, wherein a discharge port of the feeding platform 1 is communicated with a feed port of the material uniformly distributing device 10, a discharge port of the material uniformly distributing device 10 is communicated with a feed port of the material elevator 11, and a discharge port of the material elevator 11 conveys materials to the tobacco scrap processing and recycling production line. The dust removal system comprises a first dust collection cover 2, a second dust collection cover 9, a first negative pressure branch pipe 3, a second negative pressure branch pipe 8, a negative pressure air pipe 6 and a negative pressure conveying pipeline (not shown in the figure), wherein the first dust collection cover 2 is arranged above the feeding platform 1, the second dust collection cover 9 is arranged above the material uniformly-distributing device 10, the first dust collection cover 2 and the second dust collection cover 9 are respectively communicated with the negative pressure air pipe 6 through the first negative pressure branch pipe 3 and the second negative pressure branch pipe 8, the negative pressure air pipe 6 is communicated with the negative pressure conveying pipeline, and an outlet of the negative pressure conveying pipeline is positioned in an independent dust removal room ((not shown in the figure)). The first negative pressure branch pipe 3, the second negative pressure branch pipe 8 and the negative pressure air pipe 6 are respectively provided with an air flow control valve 4, 7 and 5, and the air pressure difference P and the air speed V of the air flow control valves 4, 7 and 5 are adjusted to ensure that the dust removal effect is optimal. Wherein, the material equipartition device includes the equipartition roller 15, is equipped with the loquat nail 16 on the equipartition roller, and the equipartition roller is used for spreading the tobacco leaf piece from feeding platform 1 evenly to the conveyor belt 12 of material lifting machine 11 on, and material lifting machine 11 below has lifting machine support 13.
Because the offline processing production line is required to be designed and used for separating and classifying and recovering the tobacco scraps, the feeding of the tobacco scraps must be manual, the tobacco scraps are high in dust content and easy to fly to pollute the environment, and the tobacco scraps cannot be directly fed on a lifting belt of a material lifting machine to enter other procedures by manual work, so that a feeding platform is designed, and the material is uniformly distributed on the lifting belt of the material lifting machine through the platform; because the dust in the tobacco fragments is drifted when the feeding platform is manually fed and the material distribution device is adopted to distribute the material to the lifting belt, especially, the dust content in the original (not screened) tobacco fragments is extremely high, and the dust is drifted most by the uniform distribution roller and the loquat nails in the material distribution device, the problem of drift generated by the dust generated on the feeding platform is researched, and the problem of drift generated by the uniform distribution roller and the loquat nails is also researched.
The dust removal, transportation and the like of the cigarette ash dust in the tobacco scrap recovery are the basis of the whole off-line processing production line, and generally, the following matters are considered: 1) because the feeding of the tobacco scraps adopts manual work, the dust emission pollution can be controlled by manual work, which is theoretically possible, but the manual operation is difficult to realize in reality; 2) because the material uniform distribution device is adopted to uniformly distribute the material to the lifting belt of the material lifting machine, the tightness of the material uniform distribution device is better, the rotating speeds of the uniform distribution roller and the loquat nails are not high, the problem of negative pressure dust removal does not need to be considered in general conditions, but practical condition research shows that dust in tobacco scraps is not screened and treated, the content is extremely high, the dust is easy to float, better effect can be obtained by starting dust removal, less dust generated in the next process flows, the harm of the dust to the workshop environment and workers is avoided, and the improvement of the purity of the separated tobacco scraps is facilitated.
As shown in fig. 2, 3, in a particular embodiment, the feeding platform 1 is designed to have a length L: 6000mm, width W: 800 mm's rectangle mesa, three sides of feeding platform 1's mesa design respectively protect flitch 19, the mesa below is feeding platform support 18, be close to the first dust hood 2 that gathers of the design directly over feeding platform 1 of material equipartition device 10 one side, first dust hood 2 that gathers is trapezoidal platform structure, first lower end size that gathers dust hood 2 is 3000mm 900mm, distance H apart from feeding platform 1 mesa is 600 ~ 700mm, it is preferred, 600mm is got to H, it drops when protecting flitch 19 and being used for protecting tobacco leaf piece windrow and feed.
Feeding platform 1 length L is 6000mm, the first back 3000mm section of feeding platform 1 that gathers dustcoat 2 below is used for the feed, other preceding 3000mm sections are used for prepareeing material, the artifical tobacco leaf piece that will prepare material the district pushes the feed inlet 17 of material equipartition device 10 through first gathering dustcoat 2 below, the loquat nail 16 on the uniform distribution roller 15 of recycling, evenly spread the tobacco leaf piece on the conveyor belt 12 of material lifting machine 11, the operation power of material lifting machine 11 and material equipartition device 10 is provided by transmission system 14.
Due to the process that the tobacco scraps in the material preparation area are manually pushed into the feeding hole 17 of the material uniform distribution device 10 through the lower part of the first dust collection cover 2, the tobacco ash and dust will fly, and the flying tobacco ash and dust will be collected into the first dust collection cover 2 and finally absorbed by the first negative pressure branch pipe 3 under the action of the first negative pressure branch pipe 3 above the first dust collection cover 2; similarly, during the process that the material uniformly distributing device 10 utilizes the loquat nails 16 on the uniformly distributing rollers 15 to uniformly spread the tobacco scraps onto the conveying belt 12, a large amount of cigarette ash and dust will be generated, and will be collected into the second dust collecting cover 9 and absorbed by the second negative pressure branch pipe 8. And finally, the second negative pressure branch pipe 8 is intersected with the first negative pressure branch pipe 3 and converged into the negative pressure air pipe 6, and the negative pressure air pipe 6 is connected with a negative pressure conveying pipeline of other procedures and finally conveyed to a dedusting room.
Because the dust removal effect has a close relationship with the pipe diameter, the pressure difference of air pressure and the air speed, the values of the pressure difference P and the air speed V are too small, the dust removal effect is poor, and a large amount of tobacco flakes are pumped away if the values are too large, so that the related technical parameters need to be specifically researched.
In this embodiment, the negative pressure air duct and each negative pressure branch duct have the same pipe diameter, Φ D is 165mm, the air flow control valve 4 is designed on the first negative pressure branch duct 3, the air flow control valve 7 is designed on the second negative pressure branch duct 8, and the air flow control valve 5 is designed on the negative pressure air duct 6, so that the respective air pressure difference P and the air speed V in the duct can be adjusted by using the respective air flow control valve, so as to achieve a better dust removal effect.
The upper part of the material uniform distribution device 10 is provided with a second dust collection cover 9, the second dust collection cover 9 is of a trapezoidal platform structure, the lower bottom size of the second dust collection cover 9 is consistent with the upper rectangular size of the material uniform distribution device 10, and the upper part of the material uniform distribution device 10 is provided with a rectangular opening.
As shown in FIG. 7, the second dust collecting hood 9 is provided with a through hole at the upper part thereof with a negative pressure branch pipe 8, the negative pressure branch pipe 8 is provided with a positioning hole 7-1 for installing an air flow control valve 7, and the negative pressure branch pipe 8 is designed to be bent.
As shown in fig. 8 to 9, the lower bottom and the upper bottom of the second dust collecting cover 9 are rectangular, the size of the lower bottom is b1 × a1, b1 is 800mm, a1 is 400mm, the size of the upper bottom is b × a, b is 585mm, a is 185mm, the height is H1 is 403mm, and each trapezoidal surface is an isosceles trapezoid.
As shown in FIG. 4, the upper portion of the second dust collecting hood 2 is provided with a through hole for installing a negative pressure branch pipe 3, and a positioning hole 4-1 for installing an air flow control valve 4 is arranged on the installation negative pressure branch pipe 3.
As shown in fig. 5 to 6, the lower bottom and the upper bottom of the first dust collecting hood 2 above the feeding platform 1 are rectangular, the size of the lower bottom is N × N1, N is 3000mm, and N1 is 900 mm; the size of the upper bottom is M multiplied by M1, M is 400mm, M1 is 330mm, the height is H2, H2 is 492mm, and all the trapezoidal surfaces are isosceles trapezoids.
The first dust collecting cover 2 and the second dust collecting cover 9 can be trapezoidal or frustum-shaped, and have a good collecting effect on air and a good negative pressure dust removal effect according to the aerodynamic principle, and because the upper bottom and the lower bottom of the dust collecting covers are designed according to the geometric dimensions of the material uniformly-distributing device 10 and the feeding platform 1, as long as the height of the trapezoidal body is determined, each trapezoidal surface is isosceles trapezoid, each trapezoidal angle is determined according to the mathematical principle, for example, in fig. 5-6, about B is 20.76 degrees, and B1 is 60 degrees; the lifting angle of the material lifter 11 is about 18.5 degrees, the length of the feeding platform 1 in the length direction is 3000mm, and a fur adhering belt is designed on the conveying belt 12 at the material outlet of the material uniform distribution device 10 to remove impurities so as to remove hemp fiber fluff and the like in tobacco scraps.
The circular vibrating screen is arranged in an independent dust removal room, the tobacco leaf chip processing and recycling production line is arranged in an independent workshop, and the dust removal room is isolated from the independent workshop and connected with the independent workshop through a negative pressure conveying pipeline. The suspended solid that negative pressure pipeline will collect is sent into the room that removes dust, and separation, classification are implemented in leading-in circular shale shaker again, and three kinds of materials are separated out to circular shale shaker: tobacco flake (more than 1.5mm square tobacco flake), cigarette ash and dust, and sesame flake (less than 1.5mm square tobacco flake). As a specific example, a circular shaker model MA60S888, series U14067-3, was used.
The foregoing is merely a preferred embodiment of this invention, which is intended to be illustrative, and not limiting. The structure, the connection mode and the like of all the components in the invention can be changed, and the equivalent transformation and the improvement on the basis of the technical scheme of the invention are not excluded from the protection scope of the invention.
Claims (8)
1. A feeding and dust removing device of a tobacco scrap processing and recycling production line is arranged in front of a feeding end of the tobacco scrap processing and recycling production line and is characterized by comprising a feeding platform, a material uniformly distributing device, a material lifting machine and a dust removing system, wherein a discharging port of the feeding platform is communicated with a feeding port of the material uniformly distributing device, a discharging port of the material uniformly distributing device is communicated with a feeding port of the material lifting machine, and a discharging port of the material lifting machine conveys materials to the tobacco scrap processing and recycling production line;
the dust removal system comprises a first dust collection cover, a second dust collection cover, a first negative pressure branch pipe, a second negative pressure branch pipe, a negative pressure air pipe and a negative pressure conveying pipeline, the first dust collection cover is arranged above the feeding platform, the second dust collection cover is arranged above the material uniformly-distributing device, the first dust collection cover and the second dust collection cover are respectively communicated with the negative pressure air pipe through the first negative pressure branch pipe and the second negative pressure branch pipe, the negative pressure air pipe is communicated with the negative pressure conveying pipeline, and an outlet of the negative pressure conveying pipeline is positioned in an independent dust removal room;
and the first negative pressure branch pipe, the second negative pressure branch pipe and the negative pressure air pipe are respectively provided with an air flow control valve so as to adjust the pressure difference and the air speed of the air pressure in each pipe.
2. The feeding and dust removing device of the tobacco scrap processing and recycling production line according to claim 1, wherein the distance between the bottom end of the first dust collecting cover and the feeding platform is 600-700 mm, and the second dust collecting cover closes the top of the material uniformly distributing device;
the diameters of the first negative pressure branch pipe and the second negative pressure branch pipe are the same as those of the negative pressure air pipe and are 160-170 mm, the pressure difference of air pressure in the first negative pressure branch pipe and the second negative pressure branch pipe is 25-35 Pa, and the air speed is 5-10 m/s.
3. The feeding and dust removing device of the tobacco scrap processing and recycling production line according to claim 2, wherein the first dust collecting hood and the second dust collecting hood are both of a trapezoid table structure, the upper bottom surfaces of the trapezoid table structure are respectively connected with the first negative pressure branch pipe and the second negative pressure branch pipe, the lower bottom surfaces of the trapezoid table structure are open, and each trapezoid surface is in an isosceles trapezoid shape.
4. The feeding and dust removing device of the tobacco scrap processing and recycling production line according to claim 3, wherein the upper surface of the feeding platform is a rectangle of 6000mm x 800mm, and three sides of the feeding platform except the discharge port are respectively surrounded by guard plates;
the size of the lower bottom surface of the first dust collection cover is 3000mm multiplied by 900mm, the height of the first dust collection cover is 492mm, and the first dust collection cover is arranged at a position close to the discharge hole of the feeding platform.
5. A feeding and dust removing device for a tobacco scrap processing and recycling production line as claimed in claim 4, wherein the upper surface of the feeding platform is close to 3000mm section of the material uniform distribution device in the length direction for feeding, and the rest 3000mm section is for stock preparation.
6. A feeding and dust removing apparatus for a tobacco shred processing and recycling production line as claimed in claim 3, wherein the size of the lower bottom surface of the second dust collecting hood is consistent with the size of the top surface of the material uniformly distributing apparatus, and the height of the second dust collecting hood is 403 mm.
7. The feeding and dust removing device of claim 1, wherein the material distribution device comprises a distribution roller, the distribution roller is provided with a loquat nail, and the distribution roller is used for uniformly spreading the tobacco scraps from the feeding platform onto the conveying belt of the material lifter.
8. A feeding and dust removing device for a tobacco scrap processing and recycling production line according to claim 1, wherein a circular vibrating screen is arranged in the dust removing room, the negative pressure conveying pipeline conveys collected suspended matters into the circular vibrating screen, and the circular vibrating screen separates three types of matters: tobacco flakes, ash and dust, sesame flakes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210141549.7A CN114408620A (en) | 2022-02-16 | 2022-02-16 | Feeding and dust removing device of tobacco leaf chip processing and recycling production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210141549.7A CN114408620A (en) | 2022-02-16 | 2022-02-16 | Feeding and dust removing device of tobacco leaf chip processing and recycling production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114408620A true CN114408620A (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210141549.7A Pending CN114408620A (en) | 2022-02-16 | 2022-02-16 | Feeding and dust removing device of tobacco leaf chip processing and recycling production line |
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| CN (1) | CN114408620A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116620790A (en) * | 2023-04-19 | 2023-08-22 | 江苏金贸建设集团有限公司 | Residue conveying device for building construction engineering |
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2022
- 2022-02-16 CN CN202210141549.7A patent/CN114408620A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116620790A (en) * | 2023-04-19 | 2023-08-22 | 江苏金贸建设集团有限公司 | Residue conveying device for building construction engineering |
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