CN110595227A - Deep cooling structure for polypropylene particles - Google Patents
Deep cooling structure for polypropylene particles Download PDFInfo
- Publication number
- CN110595227A CN110595227A CN201910857461.3A CN201910857461A CN110595227A CN 110595227 A CN110595227 A CN 110595227A CN 201910857461 A CN201910857461 A CN 201910857461A CN 110595227 A CN110595227 A CN 110595227A
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- CN
- China
- Prior art keywords
- cooling air
- cooling
- distributor
- air outlet
- polypropylene particles
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/10—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material
- F28C3/12—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material the heat-exchange medium being a particulate material and a gas, vapour, or liquid
- F28C3/14—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material the heat-exchange medium being a particulate material and a gas, vapour, or liquid the particulate material moving by gravity, e.g. down a tube
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Polymerisation Methods In General (AREA)
Abstract
The invention relates to a deep cooling structure of polypropylene particles, which comprises two side plates arranged on two sides of a blanking cone of a cooling tower and a cooling air outlet distributor arranged at the bottom of the blanking cone. The bottom of the cooling air outlet distributor is provided with a coaming; the two side plates are connected with the enclosing plate, the upper part of one side plate is provided with a cooling air inlet pipe, and the lower part of the other side plate is provided with a cooling air outlet pipe; a rhombic cooling air primary distribution pipe and a pyramid cooling air secondary distributor are respectively arranged in the blanking cone; an air inlet and outlet partition plate is arranged on the outer wall of the joint of the blanking cone and the cooling air outlet distributor, and one end of the air inlet and outlet partition plate is connected with the middle part of the side plate; the coaming is provided with a discharge hole. According to the invention, a further cooling structure is added under the condition that the equipment structure of the material cooling tower is not changed after the polypropylene VOC is removed by gas cooling, so that the cost can be effectively reduced, the project operation time can be shortened, and the purpose of uniform material cooling can be achieved.
Description
Technical Field
The invention relates to the technical field of polypropylene, in particular to a deep cooling structure of polypropylene particles.
Background
At present, domestic polypropylene is mostly produced by a liquid-phase bulk polymerization method, the VOC content in the product exceeds 200ppm, and the VOC harmful to human health is released by polypropylene products at higher temperature to different degrees.
GB/T27630 'guide for evaluating air quality in passenger cars' has been revised from recommended guide to mandatory national standard, and the VOC content of polypropylene is regulated to be less than 80ppm by the car and enterprise industry. The material cooling tower (application number 2019202652648) after VOC in polypropylene is removed through gas cooling utilizes gas to cool dried materials, but the temperature of the cooled materials cannot meet higher requirements of users. Therefore, in order to meet the market demand and the environmental protection demand, a device for further cooling the polypropylene is urgently needed.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a deep cooling structure of polypropylene particles for uniformly cooling materials.
In order to solve the above problems, the present invention provides a deep cooling structure of polypropylene particles, which is characterized in that: the structure comprises two side plates arranged on two sides of a blanking cone of a cooling tower and a cooling air outlet distributor at the bottom; the bottom of the cooling air outlet distributor is provided with a coaming; the two side plates are connected with the enclosing plates, the upper part of one side plate is provided with a cooling air inlet pipe, and the lower part of the other side plate is provided with a cooling air outlet pipe; a rhombic cooling air primary distribution pipe and a pyramid cooling air secondary distributor are respectively arranged in the blanking cone; an air inlet and outlet partition plate is arranged on the outer wall of the joint of the blanking cone and the cooling air outlet distributor, and one end of the air inlet and outlet partition plate is connected with the middle part of the side plate; and a discharge hole is formed in the coaming.
The number of the cooling air primary distribution pipes is 4.
The number of the cooling air secondary distributors is 1.
The cooling wind air-out distributor is 1, is the toper.
And a rotary valve is arranged on the discharge hole.
And a plurality of small holes are uniformly distributed on the lower part of the cooling air secondary distributor and the cooling air primary distribution pipe.
Compared with the prior art, the invention has the following advantages:
1. the invention adds a further cooling structure under the condition that the equipment structure of the material cooling tower (application number 2019202652648) after the VOC in the polypropylene is removed by gas cooling is not changed, thereby effectively reducing the cost and shortening the project operation time.
2. The cooling air primary distribution pipe and the cooling air secondary distributor can diffuse and discharge cooling air in the cooling process, so that the aim of uniformly cooling materials is fulfilled.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the present invention.
In the figure: 1-cooling air inlet pipe, 21-side plate, 22-coaming plate, 3-cooling air primary distribution pipe, 4-cooling air secondary distributor, 5-cooling air outlet pipe, 6-air inlet and outlet partition plate, 7-cooling air outlet distributor, 8-discharge outlet and 9-cooling tower.
Detailed Description
As shown in fig. 1, the deep cooling structure for polypropylene particles comprises two side plates 21 arranged at two sides of a blanking cone of a cooling tower 9 and a cooling air outlet distributor 7 at the bottom. A coaming 22 is arranged at the bottom of the cooling air outlet distributor 7; the two side plates 21 are connected with the enclosing plate 22, the upper part of one side plate 21 is provided with a cooling air inlet pipe 1, and the lower part of the other side plate 21 is provided with a cooling air outlet pipe 5; a rhombic cooling air primary distribution pipe 3 and a pyramid cooling air secondary distributor 4 are respectively arranged in the blanking cone; an air inlet and outlet partition plate 6 is arranged on the outer wall of the joint of the blanking cone and the cooling air outlet distributor 7, and one end of the air inlet and outlet partition plate 6 is connected with the middle part of the side plate 21; the enclosing plate 22 is provided with a discharge hole 8. The cooling tower 9 is a material cooling tower (application number 2019202652648) for removing VOC in polypropylene by gas cooling.
Wherein: the number of the cooling air primary distribution pipes 3 is 4.
The number of the cooling air secondary distributors 4 is 1.
The number of the cooling air outlet distributors 7 is 1, and the cooling air outlet distributors are conical.
The discharge port 8 is provided with a rotary valve for controlling the flow of the material.
A plurality of small holes are uniformly distributed on the lower part of the cooling air secondary distributor 4 and the cooling air primary distribution pipe 3.
When the cooling tower works, materials enter the cooling tower 9 from an inlet at the upper part, after cooling media are introduced into a cavity formed by the side plate 21, the blanking cone and the air inlet and outlet partition plate 6 from the cooling air inlet pipe 1, part of the cooling media are quickly discharged by the cooling air primary distribution pipe 3 to cool the materials, and the other part of cooling air enters the cooling air secondary distributor 4 and is quickly discharged by the distribution holes at the lower part of the cooling air secondary distributor 4 to cool the materials. Absorb the thermal coolant of material all by cooling air-out distributor 7 low-speed entering by bounding wall 22, the cavity that cooling air-out distributor 7 and business turn over wind baffle 6 are constituteed jointly, then go out the tuber pipe 5 and discharge from the cooling air, in the cooling process, because cooling air primary distribution pipe 3 is the diamond pipe, cooling air secondary distributor 4 is the pyramid, the inside material dead angle that appears of casing all can be avoided, and cooling air primary distribution pipe 3 and cooling air secondary distributor have set up a large amount of apertures on 4, it discharges to enable the cooling air to disperse, make the material cooling even.
Claims (6)
1. A deep cooling structure of polypropylene particles, characterized in that: the structure comprises two side plates (21) arranged at two sides of a blanking cone of a cooling tower (9) and a cooling air outlet distributor (7) at the bottom; a coaming (22) is arranged at the bottom of the cooling air outlet distributor (7); the two side plates (21) are connected with the enclosing plates (22), the upper part of one side plate (21) is provided with a cooling air inlet pipe (1), and the lower part of the other side plate (21) is provided with a cooling air outlet pipe (5); a rhombic cooling air primary distribution pipe (3) and a pyramid cooling air secondary distributor (4) are respectively arranged in the blanking cone; an air inlet and outlet partition plate (6) is arranged on the outer wall of the joint of the blanking cone and the cooling air outlet distributor (7), and one end of the air inlet and outlet partition plate (6) is connected with the middle part of the side plate (21); and a discharge hole (8) is formed in the coaming (22).
2. The deep cooling structure of polypropylene particles according to claim 1, wherein: the number of the cooling air primary distribution pipes (3) is 4.
3. The deep cooling structure of polypropylene particles according to claim 1, wherein: the number of the cooling air secondary distributors (4) is 1.
4. The deep cooling structure of polypropylene particles according to claim 1, wherein: the number of the cooling air outlet distributors (7) is 1, and the cooling air outlet distributors are conical.
5. The deep cooling structure of polypropylene particles according to claim 1, wherein: and a rotary valve is arranged on the discharge hole (8).
6. The deep cooling structure of polypropylene particles according to claim 1, wherein: and a plurality of small holes are uniformly distributed on the lower part of the cooling air secondary distributor (4) and the cooling air primary distribution pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857461.3A CN110595227B (en) | 2019-09-11 | 2019-09-11 | Deep cooling structure for polypropylene particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857461.3A CN110595227B (en) | 2019-09-11 | 2019-09-11 | Deep cooling structure for polypropylene particles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110595227A true CN110595227A (en) | 2019-12-20 |
| CN110595227B CN110595227B (en) | 2020-10-27 |
Family
ID=68858809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910857461.3A Active CN110595227B (en) | 2019-09-11 | 2019-09-11 | Deep cooling structure for polypropylene particles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110595227B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59191886A (en) * | 1983-04-14 | 1984-10-31 | Ishikawajima Harima Heavy Ind Co Ltd | Method of recovering sensible heat from coke-oven gas |
| CN88102617A (en) * | 1987-05-08 | 1988-11-16 | 阿尔斯特罗姆公司 | The method and apparatus of treatment process exhaust |
| JPH06281368A (en) * | 1993-03-31 | 1994-10-07 | Sumitomo Cement Co Ltd | Packed bed type heat exchanger |
| US5896919A (en) * | 1998-08-10 | 1999-04-27 | Ho; Mark | Plastic particles cooling device |
| CN200975842Y (en) * | 2006-08-11 | 2007-11-14 | 朱以松 | Vertical type suspending heat-exchange facility |
| CN102645111A (en) * | 2012-04-18 | 2012-08-22 | 常州市姚氏铸造材料有限公司 | Heat exchange device for adjusting temperature of loose solid particles |
| CN103189701A (en) * | 2010-11-03 | 2013-07-03 | 巴特勒能源同盟有限公司 | Heat exchanger and related methods |
| CN105143802A (en) * | 2012-10-18 | 2015-12-09 | 特诺恩矿产私人有限公司 | Heating apparatus and gas distributor for use in the heating apparatus |
| CN205321157U (en) * | 2015-12-14 | 2016-06-22 | 荆门市神羽禽业有限公司 | Pellet feed cooler |
| CN109751891A (en) * | 2019-03-01 | 2019-05-14 | 天华化工机械及自动化研究设计院有限公司 | A kind of gas cooling takes off the material cooling tower in polypropylene after VOC |
-
2019
- 2019-09-11 CN CN201910857461.3A patent/CN110595227B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59191886A (en) * | 1983-04-14 | 1984-10-31 | Ishikawajima Harima Heavy Ind Co Ltd | Method of recovering sensible heat from coke-oven gas |
| CN88102617A (en) * | 1987-05-08 | 1988-11-16 | 阿尔斯特罗姆公司 | The method and apparatus of treatment process exhaust |
| JPH06281368A (en) * | 1993-03-31 | 1994-10-07 | Sumitomo Cement Co Ltd | Packed bed type heat exchanger |
| US5896919A (en) * | 1998-08-10 | 1999-04-27 | Ho; Mark | Plastic particles cooling device |
| CN200975842Y (en) * | 2006-08-11 | 2007-11-14 | 朱以松 | Vertical type suspending heat-exchange facility |
| CN103189701A (en) * | 2010-11-03 | 2013-07-03 | 巴特勒能源同盟有限公司 | Heat exchanger and related methods |
| CN102645111A (en) * | 2012-04-18 | 2012-08-22 | 常州市姚氏铸造材料有限公司 | Heat exchange device for adjusting temperature of loose solid particles |
| CN105143802A (en) * | 2012-10-18 | 2015-12-09 | 特诺恩矿产私人有限公司 | Heating apparatus and gas distributor for use in the heating apparatus |
| CN205321157U (en) * | 2015-12-14 | 2016-06-22 | 荆门市神羽禽业有限公司 | Pellet feed cooler |
| CN109751891A (en) * | 2019-03-01 | 2019-05-14 | 天华化工机械及自动化研究设计院有限公司 | A kind of gas cooling takes off the material cooling tower in polypropylene after VOC |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110595227B (en) | 2020-10-27 |
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