CN113883876B - Melt-blown cloth raw materials preprocessing device - Google Patents
Melt-blown cloth raw materials preprocessing device Download PDFInfo
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- CN113883876B CN113883876B CN202111000706.4A CN202111000706A CN113883876B CN 113883876 B CN113883876 B CN 113883876B CN 202111000706 A CN202111000706 A CN 202111000706A CN 113883876 B CN113883876 B CN 113883876B
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- master batch
- drying
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- hot air
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- 239000004744 fabric Substances 0.000 title claims abstract description 20
- 239000002994 raw material Substances 0.000 title claims abstract description 14
- 238000007781 pre-processing Methods 0.000 title claims description 4
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 97
- 238000001035 drying Methods 0.000 claims abstract description 65
- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 238000000034 method Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000007599 discharging Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/12—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/04—Agitating, stirring, or scraping devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention discloses a raw material pretreatment device for melt-blown cloth, which comprises an upper oven and a lower oven, wherein the top of the upper oven is provided with a feed inlet, the bottom of the lower oven is provided with a discharge outlet, and the outside of the lower oven is provided with supporting legs; the drying device is characterized in that two groups of water-absorbing and drying mechanisms are arranged in the upper drying oven, the two groups of water-absorbing and drying mechanisms are arranged in a cross manner in space, the water-absorbing and drying mechanisms are driven by a motor, hot air is introduced into the drying oven, a plurality of conveying pipes are arranged at the bottom of the upper drying oven, the same air inlet pipe is arranged on each conveying pipe, hot air is introduced into the air inlet pipe, a master batch separating mechanism is arranged at the bottom of each conveying pipe, and the master batch separating mechanism is fixed in the lower drying oven through a support. The invention accelerates the drying process of the master batch to a certain extent, so that the master batch can achieve the effect of quick drying, thereby accelerating the processing process of the melt-blown fabric, improving the production efficiency of the melt-blown fabric and improving the production quality of the melt-blown fabric.
Description
Technical Field
The invention relates to the technical field of melt-blown cloth, in particular to a melt-blown cloth raw material pretreatment device.
Background
The melt-blown cloth is the most core material of the mask, and mainly takes polypropylene as a main raw material, and in the industrial production, the polypropylene is also called master batch; in the specific production process of the melt-blown cloth, the master batch serving as the main raw material of the melt-blown cloth is subjected to steps of filtering, drying and the like, and the main purpose of drying is to ensure the dryness of the master batch and the subsequent processing quality of the master batch;
however, when the existing dryer processes the master batch after the filtration, the master batch is often dried by adopting a stirring paddle and an air heater, and as the drying mode is single, all the master batch in a bonding state in the dryer cannot be separated, so that the condition that water still remains on the surface of part of master batch is caused, the drying efficiency of the dryer is affected to a certain extent, and the production quality of melt-blown cloth is still reduced to a certain extent.
Disclosure of Invention
The invention aims to provide a melt-blown cloth raw material pretreatment device.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a melt-blown cloth raw materials preprocessing device, includes oven and lower oven, and its innovation point lies in: the top of the upper oven is provided with a feed inlet, the bottom of the lower oven is provided with a discharge outlet, and the outside of the lower oven is provided with supporting legs; the drying device is characterized in that two groups of water-absorbing and drying mechanisms are arranged in the upper drying oven, the two groups of water-absorbing and drying mechanisms are arranged in a cross manner in space, the water-absorbing and drying mechanisms are driven by a motor, hot air is introduced into the drying oven, a plurality of conveying pipes are arranged at the bottom of the upper drying oven, the same air inlet pipe is arranged on each conveying pipe, hot air is introduced into the air inlet pipe, a master batch separating mechanism is arranged at the bottom of each conveying pipe, and the master batch separating mechanism is fixed in the lower drying oven through a support.
Further, the water absorption and drying mechanism comprises a hollow shaft, one end of the hollow shaft penetrates through the upper drying oven, a belt pulley and a rotary joint are respectively arranged, the belt pulley is connected with a motor in a transmission mode, the rotary joint is externally connected with an air pipe, the air pipe is connected with a hot air source, a plurality of hollow paddles are arranged outside the hollow shaft, the interiors of the paddles are communicated with the hollow shaft, and a plurality of air holes are formed in the surfaces of the paddles and wrap the water absorption layer.
Further, the master batch separating mechanism comprises a trapezoid hopper, a discharge hole is formed in the lower portion of the trapezoid hopper, two parallel separating rollers are arranged at the discharge hole, a plurality of strip-shaped grooves are formed in the surfaces of the separating rollers, driven sprockets are arranged at one ends of the separating rollers, gears are sleeved at the other ends of the separating rollers, a partition plate is arranged in parallel on the outer side of the separating rollers, a discharge gap is reserved between the bottom of the partition plate and the bottom of the trapezoid hopper, a feeding area is formed between the partition plate and a side plate of the trapezoid hopper, the feeding area is connected with a conveying pipe, a servo motor is arranged outside the trapezoid hopper, a driving sprocket is arranged on an output shaft of the servo motor, and a chain is adopted between the driving sprocket and the driven sprockets for transmission connection.
Further, when two separating rollers need to be opened, the gears are sleeved on the two separating rollers and meshed with each other for transmission.
Further, the insides of the upper oven and the lower oven are respectively connected with a hot air source, and hot air is introduced.
Further, the conveying pipes are distributed at equal intervals.
The processing method of the melt-blown cloth raw material pretreatment device is characterized by comprising the following steps of:
s1, enabling the master batch to enter an upper oven through a feed inlet, simultaneously starting a motor to drive a water absorbing and drying mechanism to rotate, simultaneously introducing hot air, enabling the hot air to enter a hollow shaft and diffuse into paddles, and then diffusing out through air holes, at the same time, enabling the master batch to fall on the paddles, absorbing moisture in the master batch by a water absorbing layer, and simultaneously carrying out primary drying under the action of the hot air, and enabling the hot air to dry the water absorbing layer, so that repeated use is realized, and enabling the master batch to be conveyed downwards under the action of the rotating paddles;
s2, converting directions of the master batches by two water-absorbing and drying mechanisms which are arranged in a crossing way, striking the master batches by the water-absorbing and drying mechanisms below, forming dispersive drying, and simultaneously primarily separating the bonded master batches;
s3, when the master batch is accumulated at the bottom of the upper oven, entering the master batch separating mechanism through a conveying pipe, and simultaneously, introducing hot air into the conveying pipe to further dry the master batch;
s4, when the master batch falls into a feeding area of the master batch separating mechanism, a servo motor is started, the separating roller is driven to rotate through a driving chain wheel, a chain and a driven chain wheel, and as a strip-shaped groove is formed in the separating roller, the master batch in the feeding area can fall into the strip-shaped groove from a discharging gap when the separating roller rotates, and the size of the discharging gap only enables the master batch of one master batch to pass through, so that the separating roller rotates to separate the master batch and discharge the master batch from a discharging hole.
Further, the master batch separation speed and the discharge amount of the master batch can be controlled by controlling the rotation speed of the servo motor.
Further, when two separating rollers need to be opened, the gears are sleeved on the two separating rollers and are in meshed transmission, at the moment, one separating roller drives the other separating roller to rotate, and the two separating rollers can improve the separating speed.
After the structure is adopted, the invention has the beneficial effects that:
the invention has reasonable design and convenient use, can perform primary drying and separation through the two water absorption drying mechanisms which are arranged in a crossing way, then performs secondary drying when passing through the conveying pipe, improves the drying effect and drying efficiency, and finally performs full separation under the action of the master batch separating mechanism, thereby accelerating the drying process of the master batch to a certain extent, ensuring that the master batch can achieve the effect of quick drying, accelerating the processing process of melt-blown cloth, improving the production efficiency of the melt-blown cloth and improving the production quality of the melt-blown cloth.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the water-absorbing and drying mechanism according to the present invention;
fig. 3 is a schematic top view of the master batch separating mechanism according to the present invention.
Reference numerals illustrate:
1 upper oven, 2 lower oven, 3 feed inlet, 4 discharge gate, 5 stoving mechanism, 51 hollow shaft, 52 belt pulley, 53 rotary joint, 54 trachea, 55 paddle, 56 bleeder vent, 57 water absorption layer, 6 motor, 7 conveying pipeline, 8 intake pipe, 9 master batch separating mechanism, 91 trapezoidal hopper, 92 bin outlet, 93 separation roller, 94 driven sprocket, 95 gear, 96 baffle, 97 feeding district, 98 servo motor, 99 driving sprocket.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and detailed description. It should be understood that the detailed description is presented by way of example only and is not intended to limit the invention.
Example 1
Referring to fig. 1, a raw material pretreatment device for melt-blown cloth comprises an upper oven 1 and a lower oven 2, wherein a feed inlet 3 is arranged at the top of the upper oven 1, a discharge outlet 4 is arranged at the bottom of the lower oven 2, and supporting legs are arranged outside the lower oven 2; the upper oven 1 is internally provided with two groups of water absorption and drying mechanisms 5, the two groups of water absorption and drying mechanisms 5 are arranged in a crossed manner in space, the water absorption and drying mechanisms 5 are driven by a motor 6, hot air is introduced into the upper oven 1, the bottom of the upper oven 1 is provided with a plurality of conveying pipes 7, each conveying pipe 7 is provided with the same air inlet pipe 8, hot air is introduced into the air inlet pipe 8, the bottom of each conveying pipe 7 is provided with a master batch separating mechanism 9, and the master batch separating mechanism 9 is fixed in the lower oven 2 through a bracket. Specifically, the master batch enters the upper oven 1 from the feed inlet 3, the motor 6 drives the water absorbing and drying mechanism 5 to rotate, hot air is introduced, the master batch falls on the water absorbing and drying mechanism 5 to be dried and absorbed, and then falls on the next water absorbing and drying mechanism 5, and as the master batch and the water absorbing and drying mechanism are arranged in a crossed manner, the lower water absorbing and drying mechanism 5 strikes the master batch, so that dispersion drying is formed, meanwhile, the bonded master batch is primarily separated, then enters the master batch separating mechanism 9 through the conveying pipe 7, hot air is introduced into the conveying pipe 7, the master batch is further dried, and finally the master batch is fully separated in the master batch separating mechanism 9; in order to prevent master batch in the material conveying pipe 7 from entering the air inlet pipe 8, the inner diameter of the air inlet pipe 8 is smaller than that of the master batch, and a plurality of air inlet pipes can be arranged at the same time, so that the drying efficiency is improved; in order to prevent the material conveying pipe 7 from being blocked, a metal material can be adopted to avoid bending.
Referring to fig. 2, the water-absorbing and drying mechanism 5 includes a hollow shaft 51, one end of the hollow shaft 51 penetrates through the upper oven 1, a belt pulley 52 and a rotary joint 53 are respectively arranged, the belt pulley 52 is in transmission connection with the motor 6 through a belt, the rotary joint 53 is externally connected with an air pipe 54, the air pipe 54 is connected with a hot air source, a plurality of hollow blades 55 are arranged outside the hollow shaft 51, the interiors of the blades 55 are communicated with the hollow shaft 51, a plurality of air holes 56 are formed in the surfaces of the blades 55, and a water-absorbing layer 57 is wrapped. The output shaft of the motor 6 is also provided with a belt pulley, the hollow shaft 51 is driven to rotate through a belt, hot air is simultaneously input into the air pipe 54, enters the hollow shaft 51 and is diffused into the blade 55, and then is diffused out through the air holes 56, so that two functions exist in the mode: 1. the master batch falls on the blade, the moisture in the master batch is absorbed by the water absorbing layer, and primary drying is carried out under the action of hot air; 2. the hot air can also dry the water absorption layer, so that the water absorption layer can be repeatedly used; finally, the master batch is conveyed downwards under the action of the rotating blades 55; the distance between the blade 55 and the side wall of the upper oven is smaller than the diameter of the master batch, so that the water is prevented from being absorbed into the bottom of the upper oven without being dried.
Referring to fig. 3, the master batch separating mechanism 9 includes a trapezoid hopper 91, a discharge opening 92 is arranged below the trapezoid hopper 91, two parallel separating rollers 93 are arranged at the discharge opening 92, a plurality of strip-shaped grooves are formed in the surfaces of the separating rollers 93, driven sprockets 94 are arranged at one ends of the separating rollers 93, gears 95 are sleeved at the other ends of the separating rollers, a partition plate 96 is arranged in parallel on the outer sides of the separating rollers 93, a discharge gap is reserved between the bottom of the partition plate 96 and the bottom of the trapezoid hopper, a feeding area 97 is arranged between the partition plate and the side plate of the trapezoid hopper, the feeding area 97 is connected with a conveying pipe 7, a servo motor 98 is arranged outside the trapezoid hopper 91, a driving sprocket 99 is arranged on an output shaft of the servo motor 98, and a chain is adopted between the driving sprocket 99 and the driven sprockets 94 for transmission connection. When the master batch falls into the feeding area 97, the servo motor 98 is started, the separating roller 93 is driven to rotate through the driving chain wheel 99, the chain and the driven chain wheel 94, and the separating roller 93 is provided with the strip-shaped groove, so that the master batch in the feeding area can fall into the strip-shaped groove from the discharging gap when the separating roller 93 rotates, and the size of the discharging gap only enables the master batch of one master batch to pass through, so that the separating roller 93 rotates to separate the master batch and discharge the master batch from the discharging hole.
In this embodiment, when two separating rollers 93 need to be opened, a gear 95 is sleeved on the two separating rollers 93 and meshed with each other for transmission. The two separation rollers 93 can improve the separation efficiency and the separation amount, thereby being suitable for the production of melt blown cloths of different specifications.
In this embodiment, the insides of the upper oven 1 and the lower oven 2 are respectively connected with a hot air source, and hot air is introduced. The upper and lower ovens 1 and 2 are heated in an auxiliary manner, and hot air can be input when necessary, thereby accelerating drying efficiency.
In this embodiment, the feed delivery pipes 7 are equally distributed, so as to ensure that the master batch is evenly distributed, that is, to ensure that the master batch is not easy to be blocked during separation.
Example 2
A method of processing a meltblown web material pretreatment apparatus comprising the steps of:
s1, enabling the master batch to enter an upper oven through a feed inlet, simultaneously starting a motor to drive a water absorbing and drying mechanism to rotate, simultaneously introducing hot air, enabling the hot air to enter a hollow shaft and diffuse into paddles, and then diffusing out through air holes, at the same time, enabling the master batch to fall on the paddles, absorbing moisture in the master batch by a water absorbing layer, and simultaneously carrying out primary drying under the action of the hot air, and enabling the hot air to dry the water absorbing layer, so that repeated use is realized, and enabling the master batch to be conveyed downwards under the action of the rotating paddles;
s2, converting directions of the master batches by two water-absorbing and drying mechanisms which are arranged in a crossing way, striking the master batches by the water-absorbing and drying mechanisms below, forming dispersive drying, and simultaneously primarily separating the bonded master batches;
s3, when the master batch is accumulated at the bottom of the upper oven, entering the master batch separating mechanism through a conveying pipe, and simultaneously, introducing hot air into the conveying pipe to further dry the master batch;
s4, when the master batch falls into a feeding area of the master batch separating mechanism, a servo motor is started, the separating roller is driven to rotate through a driving chain wheel, a chain and a driven chain wheel, and as a strip-shaped groove is formed in the separating roller, the master batch in the feeding area can fall into the strip-shaped groove from a discharging gap when the separating roller rotates, and the size of the discharging gap only enables the master batch of one master batch to pass through, so that the separating roller rotates to separate the master batch and discharge the master batch from a discharging hole, and meanwhile, the master batch separating speed and the discharging amount of the master batch can be controlled by controlling the rotating speed of the servo motor.
When the two separating rollers are required to be opened, the gears are sleeved on the two separating rollers and are in meshed transmission, at the moment, one separating roller drives the other separating roller to rotate, and the two separating rollers can improve the separating speed.
The foregoing is merely illustrative of the present invention and not restrictive, and other modifications and equivalents thereof may occur to those skilled in the art without departing from the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a melt-blown cloth raw materials preprocessing device, includes oven and lower oven, its characterized in that: the top of the upper oven is provided with a feed inlet, the bottom of the lower oven is provided with a discharge outlet, and the outside of the lower oven is provided with supporting legs; two groups of water-absorbing and drying mechanisms are arranged in the upper oven and are arranged in a crossed manner in space, the water-absorbing and drying mechanisms are driven by a motor, hot air is introduced into the water-absorbing and drying mechanisms, a plurality of conveying pipes are arranged at the bottom of the upper oven, the same air inlet pipe is arranged on each conveying pipe, hot air is introduced into the air inlet pipe, a master batch separating mechanism is arranged at the bottom of each conveying pipe, and the master batch separating mechanism is fixed in the lower oven through a bracket; the master batch separating mechanism comprises a trapezoid hopper, a discharge hole is formed below the trapezoid hopper, two parallel separating rollers are arranged at the discharge hole, a plurality of strip-shaped grooves are formed in the surfaces of the separating rollers, driven sprockets are arranged at one ends of the separating rollers, gears are sleeved at the other ends of the separating rollers, a partition plate is arranged outside the separating rollers in parallel, a discharge gap is reserved between the bottom of the partition plate and the bottom of the trapezoid hopper, a feeding area is formed between the partition plate and a side plate of the trapezoid hopper, the feeding area is connected with a conveying pipe, a servo motor is arranged outside the trapezoid hopper, a driving sprocket is arranged on an output shaft of the servo motor, and the driving sprocket is in transmission connection with the driven sprockets through a chain; the water absorption and drying mechanism comprises a hollow shaft, one end of the hollow shaft penetrates through the upper drying oven, a belt pulley and a rotary joint are respectively arranged, the belt pulley is connected with a motor in a transmission mode, the rotary joint is externally connected with an air pipe, the air pipe is connected with a hot air source, a plurality of hollow paddles are arranged outside the hollow shaft, the interiors of the paddles are communicated with the hollow shaft, and a plurality of air holes are formed in the surfaces of the paddles and wrap the water absorption layer.
2. The apparatus for pretreating a meltblown material according to claim 1, wherein: when two separating rollers need to be opened, the gears are sleeved on the two separating rollers and are meshed with each other for transmission.
3. The apparatus for pretreating a meltblown material according to claim 1, wherein: the upper oven and the lower oven are respectively connected with a hot air source inside, and hot air is introduced.
4. The apparatus for pretreating a meltblown material according to claim 1, wherein: the conveying pipes are distributed at equal intervals.
5. A method of treating a meltblown raw material pretreatment apparatus according to any of claims 1-4, comprising the steps of:
s1, enabling the master batch to enter an upper oven through a feed inlet, simultaneously starting a motor to drive a water absorbing and drying mechanism to rotate, simultaneously introducing hot air, enabling the hot air to enter a hollow shaft and diffuse into paddles, and then diffusing out through air holes, at the same time, enabling the master batch to fall on the paddles, absorbing moisture in the master batch by a water absorbing layer, and simultaneously carrying out primary drying under the action of the hot air, and enabling the hot air to dry the water absorbing layer, so that repeated use is realized, and enabling the master batch to be conveyed downwards under the action of the rotating paddles;
s2, converting directions of the master batches by two water-absorbing and drying mechanisms which are arranged in a crossing way, striking the master batches by the water-absorbing and drying mechanisms below, forming dispersive drying, and simultaneously primarily separating the bonded master batches;
s3, when the master batch is accumulated at the bottom of the upper oven, entering the master batch separating mechanism through a conveying pipe, and simultaneously, introducing hot air into the conveying pipe to further dry the master batch;
s4, when the master batch falls into a feeding area of the master batch separating mechanism, a servo motor is started, the separating roller is driven to rotate through a driving chain wheel, a chain and a driven chain wheel, and as a strip-shaped groove is formed in the separating roller, the master batch in the feeding area can fall into the strip-shaped groove from a discharging gap when the separating roller rotates, and the size of the discharging gap only enables the master batch of one master batch to pass through, so that the separating roller rotates to separate the master batch and discharge the master batch from a discharging hole.
6. The method for processing a meltblown raw material pretreatment device according to claim 5, wherein: the master batch separation speed and the discharge amount of the master batch can be controlled by controlling the rotation speed of the servo motor.
7. The method for processing a meltblown raw material pretreatment device according to claim 5, wherein: when two separating rollers need to be opened, the gears are sleeved on the two separating rollers and are in meshed transmission, at the moment, one separating roller drives the other separating roller to rotate, and the two separating rollers can improve the separating speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111000706.4A CN113883876B (en) | 2021-08-30 | 2021-08-30 | Melt-blown cloth raw materials preprocessing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111000706.4A CN113883876B (en) | 2021-08-30 | 2021-08-30 | Melt-blown cloth raw materials preprocessing device |
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| Publication Number | Publication Date |
|---|---|
| CN113883876A CN113883876A (en) | 2022-01-04 |
| CN113883876B true CN113883876B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111000706.4A Active CN113883876B (en) | 2021-08-30 | 2021-08-30 | Melt-blown cloth raw materials preprocessing device |
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| CN (1) | CN113883876B (en) |
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| US20170307292A1 (en) * | 2016-04-21 | 2017-10-26 | Suncue Company Ltd. | Automatic drying method and automatic drying device for a grain dryer |
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|---|---|---|---|---|
| CN205536985U (en) * | 2016-01-28 | 2016-08-31 | 安宁八街高桥食用玫瑰专业合作社 | Rose petal high temperature dehumidification unit |
| CN109396008A (en) * | 2018-11-13 | 2019-03-01 | 开平市建城混凝土有限公司 | A kind of concrete sandstone separator |
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| CN113883876A (en) | 2022-01-04 |
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