CN215619285U - Water curtain type PET fragment melting and granulating device - Google Patents
Water curtain type PET fragment melting and granulating device Download PDFInfo
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- CN215619285U CN215619285U CN202121950818.1U CN202121950818U CN215619285U CN 215619285 U CN215619285 U CN 215619285U CN 202121950818 U CN202121950818 U CN 202121950818U CN 215619285 U CN215619285 U CN 215619285U
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Abstract
The utility model discloses a water curtain type PET fragment melting and granulating device, which comprises a granulating tower, wherein a granulating nozzle is arranged above the inside of the granulating tower, and the granulating tower is a conical barrel with a large upper part and a small lower part; granulation tower top is provided with the water curtain system, and the water curtain system includes the cooling trough, the inner wall water curtain spare that is connected with the cooling trough, the water smoke subassembly, and the cooling water flows and flows downwards along the toper barrel inner wall of granulation tower by inner wall water curtain spare, and the cooling water is by the regional water smoke that forms of water smoke subassembly blowout in the barrel inside of granulation tower simultaneously, and the granulation tower bottom is provided with discharge pipe mouth to be provided with the relief valve in discharge pipe mouth department. The cooling solidification mode combining water curtain cooling on the inner wall of the tower and water mist cooling in the tower is adopted, molten material liquid drops sprayed out by the granulating spray head are firstly contacted with cooling water mist to be rapidly cooled and solidified, and then are fully contacted with cooling water in the falling process along the inner wall of the tower, so that the rapid solidification cooling is realized, and the height of the existing granulating tower is reduced.
Description
Technical Field
The utility model relates to the technical field of plastic recycling and reprocessing, in particular to a water curtain type PET fragment melting and granulating device.
Background
When the waste PET plastic is recycled, PET plastic fragments are obtained through processes of smashing, label removing, rinsing and the like. The further processing also comprises a melting granulation treatment to obtain PET particles.
The conventional PET pellets are typically prepared by melt extrusion: the working procedure is mainly carried out in a double-screw mixing extruder set, namely, the waste plastics charged into a hopper enter a machine barrel by virtue of a horizontal stirring paddle. And under the action of the temperature of 210-240 ℃ specified by the process, the plastic is changed into a plastic object in a molten state from a solid state, and the plastic is extruded and plasticized through an extrusion opening. And then the granular PET plastic product is obtained through the process steps of water-cooling bar drawing, blow drying, grain cutting, screening and the like, and the process steps are complex and tedious.
In the equipment for granulating the molten materials, one of the equipment is high-tower molten granulation, namely, a granulating head is arranged in a granulating tower, the molten materials are sprayed out by the granulating head and do free-falling body movement in the granulating tower, and the molten materials are gradually solidified in the falling process.
SUMMERY OF THE UTILITY MODEL
In view of the above problems in the prior art, an object of the present invention is to provide a water curtain type PET chip melting and granulating apparatus, which can reduce the height of a granulating tower and meet the cooling and solidifying requirements.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a water curtain type PET fragment melting and granulating device comprises a granulating tower, wherein a granulating nozzle is arranged above the inside of the granulating tower, and the granulating tower is a conical barrel with a large upper part and a small lower part; granulation tower top is provided with the water curtain system, the water curtain system include the cooling trough, with inner wall water curtain spare, the water smoke subassembly that the cooling trough is connected, the cooling water is flowed and is followed by inner wall water curtain spare the toper barrel inner wall downward flow of granulation tower, the cooling water is in by the blowout of water smoke subassembly the barrel inside region of granulation tower forms water smoke simultaneously, the granulation tower bottom is provided with discharging pipe mouth to be provided with the relief valve in discharging pipe mouth department.
Further, the water mist assembly comprises an annular water mist pipe with a water inlet at the end, and a plurality of nozzles are arranged at the bottom of the water mist pipe and used for spraying water mist.
Further, the water mist pipe is located above the top of the granulation tower, and the annular inner diameter of the water mist pipe is half of the inner diameter of the top of the granulation tower.
Furthermore, a filtering cylinder is fixed at the center of the bottom of the granulation tower through a plurality of support rods, one end of each support rod is connected to the outer wall of the filtering cylinder, and the other end of each support rod is fixed to the inner wall of the bottom of the granulation tower.
Furthermore, a drainage pipeline is arranged at the bottom of the filtering cylinder body, and the bottom end of the drainage pipeline penetrates through the discharge valve and extends to the outside of the discharge pipe opening.
Furthermore, the top of the filtering cylinder body is in a conical structure.
Further, the inner wall water curtain piece is an overflow groove arranged above the inner wall of the granulation tower, an overflow baffle is arranged on the inner side of the overflow groove, and the upper end faces of the overflow baffles are positioned on the same horizontal plane.
Further, the drain line is connected to the cooling water tank through a recovery line.
Furthermore, a recovered water filtering device is arranged on the recovered pipeline.
Furthermore, the water outlet end of the cooling water tank is communicated with the inner wall water curtain part and the water mist component through a cooling water pipeline.
Compared with the prior art, the utility model has the following advantages:
1. according to the utility model, a cooling and solidifying mode combining water curtain cooling on the inner wall of the tower and water mist cooling in the tower is adopted, molten material droplets sprayed by a granulating nozzle are firstly contacted with cooling water mist for rapid cooling and solidification, and then are fully contacted with cooling water in the falling process along the inner wall of the tower, so that rapid solidification and cooling are achieved, the cooling and solidifying effect is better, the height of the granulating tower in the prior art is greatly reduced, the structure is simple, and the maintenance cost is low;
2. the plastic granules after the solidification flow to the ejection of compact mouth of pipe at the bottom of the tower along with the cooling water downward, and the material is discharged through the blow-off valve, and the cooling water is discharged from water inlet and drainage pipe, directly realizes water-water separation, and the cooling water gets back to cooling trough retrieval and utilization, resources are saved through the recovery pipeline.
Drawings
FIG. 1 is a schematic structural view of a PET chip melt-pelletizing apparatus according to the present invention;
FIG. 2 is a schematic view of a portion of the structure of FIG. 1;
FIG. 3 is a schematic view of the bottom structure of the granulation tower in the present invention.
The device comprises a granulation tower 1, a granulation spray head 2, a cooling water tank 3, a water curtain piece 4, a water mist component 5, a discharge pipe opening 6, a drainage pipe 7, a filtering cylinder 8, a recovered water filtering device 9, a discharge valve 10, a support rod 11, a recovery pipeline 101, a cooling water pipeline 102, an overflow groove 401, an overflow baffle 402, an annular water mist pipe 501 and a nozzle 502.
Detailed Description
The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1-3, a water curtain type PET chip melting and granulating device comprises a granulating tower 1, wherein a granulating nozzle 2 is arranged above the inside of the granulating tower 1, and the granulating tower 1 is a conical cylinder with a large upper part and a small lower part; 1 top of prilling tower is provided with the water curtain system, the water curtain system include cooling trough 3, with inner wall water curtain spare 4, the water smoke subassembly 5 that cooling trough 3 is connected, the cooling water is followed by inner wall water curtain spare 4 the toper barrel inner wall of prilling tower 1 flows down, and the cooling water is in by the blowout of water smoke subassembly 5 the barrel internal region of prilling tower 1 forms water smoke simultaneously, 1 bottom of prilling tower is provided with ejection of compact mouth of pipe 6 to be provided with relief valve 10 in ejection of compact mouth of pipe 6 department.
According to the utility model, a cooling and solidifying mode combining tower inner wall water curtain cooling and tower inner water mist cooling is adopted, molten material liquid drops sprayed by a granulating nozzle are firstly contacted with cooling water mist sprayed by a water mist component 5 in the inner area of a cylinder body of a granulating tower 1 to carry out rapid cooling and solidification, and then are fully contacted with cooling water of an inner wall water curtain component 4 in the falling process along the inner wall of the tower, so that rapid solidification and cooling are achieved, the cooling and solidifying effect is better, the height of the granulating tower in the prior art is greatly reduced, the structure is simple, and the maintenance cost is low.
As shown in fig. 1, in the technical solution of the present invention:
the water mist assembly 5 comprises an annular water mist pipe 501 with a water inlet at the end, and a plurality of nozzles 502 are arranged at the bottom of the water mist pipe 501 and used for spraying water mist.
In this embodiment: the water mist pipe 501 is located above the top of the granulation tower 1, and the annular inner diameter of the water mist pipe 501 is half of the inner diameter of the top of the granulation tower 1.
The water mist sprayed out through the nozzles 502 can cover the whole interior of the tower body, molten material liquid drops sprayed out through the granulation nozzles can be fully contacted with cooling water mist, and the cooling solidification efficiency of the tower body is improved.
As shown in fig. 2 and 3, in the technical solution of the present invention:
a filtering cylinder 8 is fixed at the center of the bottom of the granulation tower 1 through a plurality of support rods 11, one end of each support rod 11 is connected to the outer wall of the filtering cylinder 8, and the other end of each support rod 11 is fixed to the inner wall of the bottom of the granulation tower 1.
The cooling water lags behind and gathers at the bottom of the prilling tower 1, and is filtered by the filtering cylinder 8, the cooling water is filtered inside the filtering cylinder 8, and the granular plastic product is left at the bottom of the prilling tower 1.
In this embodiment, a drain pipe 7 is provided at the bottom of the filter cylinder 8, and the bottom end of the drain pipe 7 passes through the discharge valve 10 and extends to the outside of the discharge pipe opening 6.
The cooling water enters the water discharge pipe 7 through the filter cartridge 8 and is discharged through the water discharge pipe 7.
The solidified plastic particles flow downwards to a discharge pipe opening at the bottom of the tower along with cooling water, materials are discharged through a discharge valve 10, and the cooling water is discharged from a water inlet and discharge pipeline, so that water and water separation is directly realized.
As shown in fig. 2 and 3, in another embodiment of the present invention,
the top of the filtering cylinder body 8 is of a conical structure. Do benefit to the material and follow the cylinder toper outer wall whereabouts, avoid moisture or plastic pellet material to remain at the top of filtering the cylinder 8.
As shown in fig. 1, in one embodiment of the present invention:
the inner wall water curtain piece 4 is an overflow groove 401 arranged above the inner wall of the granulation tower 1, an overflow baffle 402 is arranged on the inner side of the overflow groove 401, and the upper end surfaces of the overflow baffle 402 are positioned on the same horizontal plane.
In the present embodiment, the drain line 7 is connected to the cooling water tank 3 through a recovery line 101.
The cooling water returns to the cooling water tank 3 for recycling through the recovery pipeline 101, so that resources are saved.
As shown in fig. 1, in the present embodiment:
the recovery pipeline 101 is provided with a recovered water filtering device 9. The problem that the pipeline is blocked because the cooling water system is carried out by the recovery pipeline 101 after the small-particle-size molten particles are solidified is avoided.
As shown in fig. 1, in the present embodiment:
the water outlet end of the cooling water tank 3 is communicated with the inner wall water curtain component 4 and the water mist component 5 through a cooling water pipeline 102.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. A water curtain type PET fragment melting and granulating device comprises a granulating tower (1), wherein a granulating nozzle (2) is arranged above the inside of the granulating tower (1), and the granulating tower (1) is a conical cylinder with a large upper part and a small lower part; the method is characterized in that: granulation tower (1) top is provided with the water curtain system, the water curtain system include cooling trough (3), with inner wall water curtain spare (4), water smoke subassembly (5) that cooling trough (3) are connected, the cooling water is flowed and is followed by inner wall water curtain spare (4) the toper barrel inner wall of granulation tower (1) flows down, and the cooling water is in by water smoke subassembly (5) blowout simultaneously the barrel inner region of granulation tower (1) forms water smoke, granulation tower (1) bottom is provided with ejection of compact mouth of pipe (6) to locate to be provided with relief valve (10) in ejection of compact mouth of pipe (6).
2. A water curtain type PET chip melting and pelletizing device according to claim 1, characterized in that the water mist assembly (5) comprises an annular water mist pipe (501) with a water inlet at the end, and the bottom of the water mist pipe (501) is provided with a plurality of nozzles (502) for spraying water mist.
3. A water curtain type PET chip melting and pelletizing device according to claim 2, characterized in that the water mist pipe (501) is located above the top of the pelletizing tower (1), and the inner diameter of the ring shape of the water mist pipe (501) is half of the inner diameter of the top of the pelletizing tower (1).
4. The water curtain type PET chip melting and pelletizing device according to claim 1, characterized in that a filtering cylinder (8) is fixed at the center of the bottom of the pelletizing tower (1) through a plurality of support rods (11), one end of each support rod (11) is connected to the outer wall of the filtering cylinder (8), and the other end is fixed to the inner wall of the bottom of the pelletizing tower (1).
5. A water curtain type PET chip melting and granulating apparatus as claimed in claim 4, wherein a water discharge pipe (7) is provided at the bottom of said filter cylinder (8), and the bottom end of said water discharge pipe (7) passes through said discharge valve (10) and extends to the outside of said discharge nozzle (6).
6. A water curtain type PET chip melting and granulating device as claimed in claim 4, wherein the top of said filtering cylinder (8) is of a conical structure.
7. The melt granulation device for PET chips as claimed in claim 1, wherein said inner wall water curtain member (4) is an overflow trough (401) disposed above the inner wall of the granulation tower (1), an overflow baffle (402) is disposed inside said overflow trough (401), and the upper end surfaces of said overflow baffle (402) are at the same level.
8. A water curtain type PET chip melting and granulating apparatus as claimed in claim 5, wherein said water discharge duct (7) is connected to said cooling water tank (3) through a recovery duct (101).
9. A water curtain type PET chip melting and granulating apparatus as claimed in claim 8, wherein said recovery pipe (101) is provided with a recovered water filtering apparatus (9).
10. The water curtain type PET chip melting and granulating device as claimed in claim 1, wherein the water outlet end of said cooling water tank (3) is communicated with said inner wall water curtain member (4) and water mist module (5) through a cooling water pipe (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121950818.1U CN215619285U (en) | 2021-08-19 | 2021-08-19 | Water curtain type PET fragment melting and granulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121950818.1U CN215619285U (en) | 2021-08-19 | 2021-08-19 | Water curtain type PET fragment melting and granulating device |
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| CN215619285U true CN215619285U (en) | 2022-01-25 |
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| CN202121950818.1U Active CN215619285U (en) | 2021-08-19 | 2021-08-19 | Water curtain type PET fragment melting and granulating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849588A (en) * | 2022-05-18 | 2022-08-05 | 西安交通大学 | Fly ash slag solidification molding granulation recovery system |
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2021
- 2021-08-19 CN CN202121950818.1U patent/CN215619285U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849588A (en) * | 2022-05-18 | 2022-08-05 | 西安交通大学 | Fly ash slag solidification molding granulation recovery system |
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