CN215094672U - Short fiber pneumatic conveying device - Google Patents
Short fiber pneumatic conveying device Download PDFInfo
- Publication number
- CN215094672U CN215094672U CN202120425954.2U CN202120425954U CN215094672U CN 215094672 U CN215094672 U CN 215094672U CN 202120425954 U CN202120425954 U CN 202120425954U CN 215094672 U CN215094672 U CN 215094672U
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- fiber
- air
- storage tank
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- outlet
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- 239000000835 fiber Substances 0.000 title claims abstract description 159
- 238000003860 storage Methods 0.000 claims abstract description 68
- 238000007664 blowing Methods 0.000 claims abstract description 35
- 238000005520 cutting process Methods 0.000 claims abstract description 17
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 230000008676 import Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 23
- 239000000463 material Substances 0.000 abstract description 17
- 239000010426 asphalt Substances 0.000 description 22
- 238000002156 mixing Methods 0.000 description 14
- 239000011384 asphalt concrete Substances 0.000 description 8
- 230000006872 improvement Effects 0.000 description 8
- 239000002184 metal Substances 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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- Preliminary Treatment Of Fibers (AREA)
Abstract
The utility model discloses a short fiber pneumatic conveying device, which comprises a storage tank for storing fibers, a cutting module for cutting fibers in the storage tank, a blowing module for blowing the cut fibers to a stirring cylinder, and a pneumatic conveying box for installing the blowing module and allowing the cut fibers to fall, wherein the top end of the pneumatic conveying box is provided with a fiber inlet, the side surface of the pneumatic conveying box is provided with a fiber outlet, the blowing module is arranged at the other side surface of the pneumatic conveying box relative to the fiber outlet, and the blowing module blows a part of the cut fibers on the way of falling; the material storage tank is positioned above the air conveying box, the cutting module is arranged at the discharge port of the material storage tank opposite to the fiber inlet, and the material storage tank is connected with the air conveying box; a fiber temporary storage area is arranged below the storage tank. Because the utility model discloses the great, the higher fibre group of the degree of agglomerating of well weight falls into the pneumatic conveying bottom of the case portion to the fretwork grid through the pneumatic conveying bottom of the case portion leaves the pneumatic conveying system, so effectively avoid in the too big fibre group is added bituminous mixture.
Description
Technical Field
The utility model relates to an asphalt mixture apparatus for producing, concretely relates to will cut the device that the fibre blew in asphalt mixture through air conveying system and mix the jar.
Background
Compared with the traditional asphalt concrete, the fiber asphalt concrete has higher toughness, and can better resist the low-temperature cracking of the asphalt pavement in winter when being used as an asphalt pavement material, prolong the service life of the pavement and improve the service capacity. One of the technical barriers currently hindering the large-scale use of fibrous asphalt concrete is the tendency of the fibres to exhibit a high degree of agglomeration due to their overlapping with each other. The agglomeration effect is widely existed before adding asphalt concrete, and after adding asphalt mixture, the fiber groups are wrapped by asphalt and are more difficult to be dispersed.
Thus, the fibers are pre-treated prior to blending to exhibit lower agglomeration. However, at present, the fibers are added into the asphalt mixture for mixing in a manual one-time input mode, so that a large amount of fiber clusters with large sizes are formed in the mixture. The presence of the fiber clusters causes a stress concentration phenomenon when the asphalt concrete is subjected to a load, so that the asphalt concrete is easy to damage.
Disclosure of Invention
The utility model aims at providing a chopped fiber pneumatic conveying device, the fibre that will weigh is thrown to storage fiber jar from the feed inlet. The fibers are initially divided into smaller fiber clumps by a dividing grid at the bottom of the storage fiber tank. The fiber mass then falls into an air box, on the way the fiber mass falls, a blower in the air box blows it to the asphalt mix vat. Because the utility model discloses the great, the higher fibre group of the degree of agglomerating of well weight falls into the pneumatic conveying bottom of the case portion to the fretwork grid through the pneumatic conveying bottom of the case portion leaves the pneumatic conveying system, so effectively avoid in the too big fibre group is added bituminous mixture.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a chopped fiber air-conveying device comprises a storage tank for storing fibers, a dividing module for dividing the fibers in the storage tank, a blowing module for blowing the divided fibers to a stirring cylinder, and an air-conveying box for installing the blowing module and allowing the divided fibers to fall off, wherein the top end of the air-conveying box is provided with a fiber inlet, the side surface of the air-conveying box is provided with a fiber outlet, the blowing module is installed on the other side surface of the air-conveying box opposite to the fiber outlet, and the blowing module blows a part of the divided fibers on the way of falling;
the material storage tank is positioned above the air supply box, the cutting module is arranged at the discharge port of the material storage tank opposite to the fiber inlet, and the material storage tank is connected with the air supply box;
the fiber temporary storage area is arranged below the storage tank, and the fiber temporary storage area stores the divided fibers falling to the bottom of the storage tank from the other part.
As a further improvement of the utility model, the storage tank is of a structure with a large upper part and a small lower part, the feed inlet of the storage tank is positioned at the upper part of the storage tank, and the discharge outlet of the storage tank is positioned at the lower part of the storage tank;
the discharge gate of storage tank with the fibre access connection of case is sent to the wind, cut apart the module and install the discharge gate with the junction of fibre import.
As a further improvement of the utility model, the module of cutting apart includes cutting apart the grid, it includes a plurality of grid holes to cut apart the grid, the grid hole supplies the fibre of having cut apart drops.
As a further improvement, the cutting module further comprises a cutting tool, the cutting tool is installed at the middle part of the cutting grid, and the cutting tool is used for cutting the fiber.
As a further improvement of the utility model, the pneumatic conveying box comprises a box body, an air inlet, a fiber inlet and a fiber outlet, the air inlet, the fiber inlet and the fiber outlet are arranged on the box body, the fiber inlet is over against the discharge port of the storage tank, and the air inlet and the fiber outlet are arranged on opposite side walls of the box body;
the fiber outlet is connected with the stirring cylinder, the blowing module is installed on the side wall of the box body provided with the air inlet, and the air outlet of the blowing module is opposite to the fiber outlet.
As a further improvement, the short fiber air-conveying device is arranged in the vertical plane projection, the air outlet of the blowing module is arranged in the two sides of the fiber inlet.
As a further improvement of the utility model, still include the fretwork grid, the fretwork grid is installed fibre temporary storage area.
As a further improvement of the utility model, the fretwork grid is installed blow the module with air between the fibre export send bottom of the case portion.
As a further improvement of the utility model, blow the module and be the air-blower, the air-blower runs through install in behind the another side of wind send the case.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model discloses a cut apart the grid among the storage tank and tentatively cut apart into less fibre group with the bold fibre group to mix the jar with the even bituminous mixture that blows in of fibre through the pneumatic conveying device, can improve the distribution uniformity of fibre in bituminous mixture. In the process, the fiber clusters are conveyed by wind power and can be better opened under the action of air resistance, so that the fibers added into the mixing cylinder are in a monofilament dispersion state, the number of large-size fiber clusters in the asphalt mixture is greatly reduced, and the performance of asphalt concrete is favorably improved. The device has low cost, simple structure and easy use.
Drawings
The present invention will be further described with reference to the accompanying drawings and the detailed description.
FIG. 1 is a schematic view of a fiber pneumatic conveying device according to the present invention;
reference numerals: 1. a material storage tank; 2. a segmentation module; 3. an air conveying box; 4. a blowing module; 5. an air inlet; 6. hollowing out the grids; 7. and (4) fiber outlet.
Detailed Description
Referring to fig. 1, an embodiment of the present invention provides a chopped fiber pneumatic conveying device, including a storage tank 1 for storing fibers, a cutting module 2 for cutting fibers in the storage tank 1, a blowing module 4 for blowing the cut fibers to a mixing tank, a pneumatic conveying box 3 for installing the blowing module 4 and allowing the cut fibers to fall, a fiber inlet provided at the top end of the pneumatic conveying box 3, a fiber outlet 7 provided at the side of the pneumatic conveying box 3, the blowing module 4 installed at the other side of the pneumatic conveying box 3 opposite to the fiber outlet 7, and the blowing module 4 blowing a part of the cut fibers falling on the way; the material storage tank 1 is positioned above the air supply box 3, the cutting module 2 is arranged at the fiber outlet 7 of the material storage tank 1 opposite to the fiber inlet, and the material storage tank 1 is connected with the air supply box 3; the fiber temporary storage area is arranged below the storage tank 1, and the fiber temporary storage area stores the cut fibers falling to the bottom of the storage tank 1.
In the embodiment of the utility model, the material storage tank 1 is of a structure with a big top and a small bottom, the feed inlet of the material storage tank 1 is positioned at the upper part of the material storage tank, and the fiber outlet 7 of the material storage tank 1 is positioned at the lower part of the material storage tank; the fiber outlet 7 of the material storage tank 1 is connected with the fiber inlet of the air supply box 3, and the segmentation module 2 is arranged at the joint of the fiber outlet 7 and the fiber inlet.
The utility model discloses an in the embodiment, cut apart module 2 includes cuts apart the grid, cuts apart the grid and includes a plurality of grid holes, and the grid hole supplies to cut apart the fibre and drops.
The utility model discloses an in the embodiment, cut apart module 2 still includes cuts apart the cutter, cuts apart the cutter and installs at the middle part of cutting apart the grid, cuts apart the cutter and cuts apart the fibre.
In the embodiment of the utility model, the air supply box 3 comprises a box body, an air inlet 5, a fiber inlet and a fiber outlet 7 which are arranged on the box body, the fiber inlet is over against the fiber outlet 7 of the storage tank 1, and the air inlet 5 and the fiber outlet 7 are arranged on the opposite side walls of the box body; the fiber outlet 7 is connected with the stirring cylinder, the blowing module 4 is installed on the side wall of the box body provided with the air inlet 5, and the air outlet of the blowing module 4 is opposite to the fiber outlet 7.
The utility model discloses an in the embodiment, chopped strand air feeding device is when vertical plane projection, blows the air outlet and the fibre export 7 of module 4 and is located the both sides of fibre import.
The utility model discloses an in the embodiment, a chopped fiber pneumatic conveying device still includes the fretwork grid, and the fretwork grid is installed in fibre temporary storage area. In the embodiment of the present invention, the hollow grid is installed at the bottom of the blowing box 3 between the blowing module 4 and the fiber outlet 7.
In the embodiment of the present invention, the blowing module 4 is a blower, and the blower is installed on the air supply box 3 after penetrating through another side surface of the air supply box 3.
In practical application, the utility model discloses short fibre pneumatic conveying device of embodiment can include storage tank 1, cut apart grid, pneumatic conveying case 3, air-blower, air inlet, fretwork grid 6 and fibre export 7. The storage tank 1 is a metal tank body, and the volume of the storage tank is not less than 3m3And the lower part of the frame is provided with a partition grid. The partition grating is made of metal, the grating is a square frame, the area of the frame is not less than 0.5m2, the grating holes are square, and the area of each grating hole is not more than 25cm2Is positioned at the bottom of the storage tank 11. The air conveying box 3 is made of metal and located below the partition grids, and an air blower, an air inlet, a hollow grid 6 and a fiber outlet 7 are arranged in the air conveying box 3. The blower is electrically driven machinery, the rotating speed is not lower than 1500 r/s, and the air volume is not less than 1000m3H, the total pressure is not less than 20 Pa.
The air inlet is a circular hole, and the aperture is not less than 20 cm. The hollow grids 6 are made of metal, the grid holes are square, and the area of each grid hole is not less than 50cm2. The fiber outlet 7 is open and is communicated with the top of the asphalt mixture stirring cylinder.
In the embodiment, 3.5 tons of asphalt mixture can be mixed by the asphalt mixing and mixing equipment at one time, the asphalt mixture is an AC-16 type asphalt mixture, the oil-stone ratio is 4.47%, the mixing temperature is 170 ℃, and the mixing time is 45 seconds. The fibers were polyvinyl alcohol fibers having a fiber diameter of 15 μm and generally formed into a mass. The mass ratio of the fibers to the asphalt mixture is 0.08%.
First, based on the mass of the asphalt mixture (3.5 tons), the amount of the fiber was 28kg calculated as the mass ratio of the fiber to the asphalt mixture of 0.08%, and 28kg of the fiber was weighed for use.
And secondly, turning on a switch of the air blower and turning on a switch of the asphalt mixture mixing cylinder.
Then, the weighed fibers are put into the storage tank 1, and the fibers are primarily divided into fiber clusters with small sizes through the partition grids under the action of gravity and fall to the pneumatic conveying box 3. Under the action of the wind power of the air blower of the air supply box 3, the fiber clusters are blown away, the fibers are in a monofilament dispersion state, and the fibers directly enter the asphalt mixture mixing tank through the fiber outlet 7. The asphalt mixing tank is then continuously mixing the mixture of fibers and asphalt. Part of the fiber mass can not be blown away due to the heavy weight and is separated from the air supply box 3 through the hollow grid 6.
Finally, the large fibers (2 kg) below the hollow grid 6 are collected and put into the storage tank 1 again, and are blown into the mixing cylinder through the device, so that mixing is completed.
No significant lumps of fibres were found in the fibre asphalt mixture produced with the aid of the device. The asphalt concrete performance test shows that the detection indexes of the test piece are obviously superior to those of the test piece without the system.
Claims (9)
1. The chopped fiber air conveying device is characterized by comprising a storage tank (1) for storing fibers, a dividing module (2) for dividing the fibers in the storage tank (1), a blowing module (4) for blowing the divided fibers to a stirring cylinder, and an air conveying box (3) for installing the blowing module (4) and allowing the divided fibers to fall off, wherein a fiber inlet is formed in the top end of the air conveying box (3), a fiber outlet (7) is formed in the side surface of the air conveying box (3), the blowing module (4) is installed on the other side surface of the air conveying box (3) relative to the fiber outlet (7), and the blowing module (4) blows a part of the divided fibers on the way of falling;
the storage tank (1) is positioned above the air conveying box (3), the cutting module (2) is arranged at a discharge port of the storage tank (1) opposite to the fiber inlet, and the storage tank (1) is connected with the air conveying box (3);
the fiber temporary storage area is arranged below the storage tank (1), and the fiber temporary storage area stores the divided fibers falling to the bottom of the storage tank (1).
2. The chopped fiber pneumatic conveying device according to claim 1, wherein the storage tank (1) is of a structure with a large upper part and a small lower part, the feeding port of the storage tank (1) is positioned at the upper part of the storage tank, and the discharging port of the storage tank (1) is positioned at the lower part of the storage tank;
the discharge gate of storage tank (1) with the fibre access connection of case (3) is sent to the wind, it installs to cut apart module (2) the discharge gate with the junction of fibre import.
3. A chopped fibre air-feed device according to claim 1 or 2, characterised in that the splitting module (2) comprises a splitting grid comprising grid holes for the split fibres to fall through.
4. A chopped fibre air-feed device according to claim 3, characterised in that the splitting module (2) further comprises a splitting cutter mounted in the middle of the splitting grid, which splits the fibres.
5. The chopped fiber pneumatic conveying device according to claim 1, wherein the pneumatic conveying box (3) comprises a box body, an air inlet (5), a fiber inlet and a fiber outlet (7), the air inlet is formed in the box body, the fiber inlet is opposite to the discharge hole of the storage tank (1), and the air inlet (5) and the fiber outlet (7) are formed in opposite side walls of the box body;
the fiber outlet (7) is connected with a stirring cylinder, the blowing module (4) is installed on the side wall of the box body provided with the air inlet (5), and the air outlet of the blowing module (4) is opposite to the fiber outlet (7).
6. A chopped fibre air-feed device according to claim 5, characterized in that the air outlet of the blowing module (4) and the fibre outlet (7) are located on both sides of the fibre inlet when the chopped fibre air-feed device is projected in a vertical plane.
7. The chopped fiber air delivery device of claim 1, further comprising a perforated grid mounted in said temporary fiber storage area.
8. A chopped fibre air-feed device according to claim 7, characterized in that the fretwork grid is mounted at the bottom of the air-feed box (3) between the blowing module (4) and the fibre outlet (7).
9. A chopped fiber air-conveying device according to claim 1, characterized in that the blowing module (4) is a blower which penetrates the other side surface of the air-conveying box (3) and is mounted on the air-conveying box (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120425954.2U CN215094672U (en) | 2021-02-26 | 2021-02-26 | Short fiber pneumatic conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120425954.2U CN215094672U (en) | 2021-02-26 | 2021-02-26 | Short fiber pneumatic conveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215094672U true CN215094672U (en) | 2021-12-10 |
Family
ID=79336411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120425954.2U Expired - Fee Related CN215094672U (en) | 2021-02-26 | 2021-02-26 | Short fiber pneumatic conveying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215094672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115338951A (en) * | 2022-08-08 | 2022-11-15 | 南通理工学院 | Mixed fiber concrete and preparation method thereof |
-
2021
- 2021-02-26 CN CN202120425954.2U patent/CN215094672U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115338951A (en) * | 2022-08-08 | 2022-11-15 | 南通理工学院 | Mixed fiber concrete and preparation method thereof |
| CN115338951B (en) * | 2022-08-08 | 2023-06-09 | 南通理工学院 | Spraying and mixing device and method for preparing mixed fiber concrete by adopting same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |