CN114877638A - Steamer for preparing polyolefin by SPG (spray-steam-assisted gas) process - Google Patents
Steamer for preparing polyolefin by SPG (spray-steam-assisted gas) process Download PDFInfo
- Publication number
- CN114877638A CN114877638A CN202210511058.7A CN202210511058A CN114877638A CN 114877638 A CN114877638 A CN 114877638A CN 202210511058 A CN202210511058 A CN 202210511058A CN 114877638 A CN114877638 A CN 114877638A
- Authority
- CN
- China
- Prior art keywords
- steamer
- polyolefin
- barrel
- stirring shaft
- spg
- Prior art date
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
- F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
- F26B11/0463—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall
- F26B11/0477—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum
- F26B11/0486—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum the elements being held stationary, e.g. internal scraper blades
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
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- 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
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
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- 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
- F26B25/008—Seals, locks, e.g. gas barriers or air curtains, for drying enclosures
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- 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
- F26B25/02—Applications of driving mechanisms, not covered by another subclass
-
- 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
-
- 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
- F26B25/06—Chambers, containers, or receptacles
- F26B25/14—Chambers, containers, receptacles of simple construction
- F26B25/16—Chambers, containers, receptacles of simple construction mainly closed, e.g. drum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a steamer for preparing polyolefin by an SPG (spray-steam-assisted gas) process, which relates to the technical field of steamers and comprises a barrel body; a feed inlet and an air outlet are formed in the top of the cylinder body; an air inlet is formed in one side of the lower part of the cylinder body; a discharge hole is formed in the bottom of the cylinder; the stirring shaft is arranged in the barrel, and the top of the stirring shaft is in transmission connection with a driving mechanism. The length-diameter ratio of the cylinder body is reduced, the contact area of gas and materials is increased, the residence time of cold gas after heat exchange is reduced, and the drying efficiency is improved. The stirring shaft is arranged as a hollow shaft, and is connected with the vent pipe for spraying steam, thereby increasing the heating source and improving the drying efficiency. The invention achieves the purpose of converting an external heat source to the rotating blade by arranging the rotating joint.
Description
Technical Field
The invention relates to the technical field of steamers, in particular to a steamer for preparing polyolefin by an SPG (spray-steam-assisted gas) process.
Background
With the rapid increase of polyolefin capacity in China, the self-sufficient rate of polyolefin capacity and the demand of new products in China are increasing day by day. Therefore, the improvement of the polyolefin production process and the localization of the production process are significant.
The SPG process is an independently innovative continuous polyolefin preparation process in China, is suitable for continuous modification of a plurality of intermittent polyolefin preparation devices, and is also suitable for construction of large-scale polyolefin preparation devices. The SPG process flow is simple, the equipment cost is low, the product quality is easy to control, the product brand range is wide, and the popularization and development prospect is very wide.
The steamer is one of the core devices in the SPG process flow, and the device performance directly influences the product performance. At present, the equipment still adopts the structures in other process devices, and the process technology is different, so that the parameters in the process are different, and the equipment performance is not expected. Therefore, the development of a steamer structure suitable for the SPG process is significant.
Disclosure of Invention
In order to solve the technical problems, the invention provides a steamer for preparing polyolefin by an SPG process, which is used for improving the drying efficiency.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a steamer for preparing polyolefin by an SPG process, which comprises a barrel body; a feed inlet and an air outlet are formed in the top of the cylinder body; an air inlet is formed in one side of the lower part of the cylinder body; a discharge hole is formed in the bottom of the cylinder; the stirring shaft is arranged in the barrel, and the top of the stirring shaft is in transmission connection with a driving mechanism.
Optionally, the stirring shaft is a hollow shaft, a rotary joint is arranged at the top of the stirring shaft, and the rotary joint is located outside the barrel.
Optionally, at least one set of blades is arranged at the middle lower part of the stirring shaft.
Optionally, a vent pipe is arranged on the bottom surface of the blade, one end of the vent pipe is communicated with the hollow part of the hollow shaft, and a plurality of small holes are formed in the vent pipe.
Optionally, the driving mechanism includes a motor, a speed reducer, a sprocket and a chain; the top of (mixing) shaft is provided with one the sprocket, the motor with the input shaft of speed reducer is connected, the output shaft of speed reducer is provided with another the sprocket, the chain sets up in two between the sprocket.
Optionally, a distribution plate is arranged at the bottom in the cylinder, the top of the distribution plate is connected with the inner wall of the cylinder, and the bottom of the distribution plate is connected with the top of the discharge hole; the height position of the air inlet is positioned at the middle lower part of the distribution plate; the distribution plate is provided with a plurality of air holes.
Optionally, the side wall and the top of the cylinder are provided with a jacket.
Optionally, a sealing filler is arranged between the top of the cylinder and the stirring shaft.
Optionally, the outer wall of the cylinder body is provided with a support lug.
Optionally, the length-diameter ratio of the cylinder is (1-10): 1.
Compared with the prior art, the invention has the following technical effects:
1. the length-diameter ratio of the cylinder body is reduced, the contact area of gas and materials is increased, the residence time of cold gas after heat exchange is reduced, and the drying efficiency is improved.
2. The stirring shaft is arranged as a hollow shaft, and is connected with the vent pipe for spraying steam, thereby increasing the heating source and improving the drying efficiency.
3. The invention achieves the purpose of converting an external heat source to the rotating blade by arranging the rotating joint.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of a steamer for manufacturing polyolefin by SPG process according to the present invention.
Description of reference numerals: 101-a motor; 102-a speed reducer; 103-a sprocket; 104-a chain; 201-cylinder body; 202-a feed inlet; 203-air outlet; 204-an air inlet; 205-a distribution plate; 206-discharge hole; 207-jacket; 208-a lug; 301-hollow shaft; 302-a blade; 303-a breather pipe; 400-a swivel joint; 500-sealing the packing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present embodiment provides a steamer for manufacturing polyolefin by SPG process, comprising a barrel 201; the top of the cylinder 201 is provided with a feed inlet 202 and an air outlet 203; an air inlet 204 is arranged on one side of the lower part of the cylinder 201; the bottom of the cylinder 201 is provided with a discharge hole 206; a stirring shaft is arranged in the barrel 201, and the top of the stirring shaft is in transmission connection with a driving mechanism.
In this embodiment, a top flange is disposed on the top of the cylinder 201, the top end of the stirring shaft penetrates through the top flange, and a sealing filler 500 is disposed between the inner wall of the top flange and the stirring shaft.
The part of the stirring shaft above the cylinder 201 is provided with a chain wheel 103, the chain wheel 103 is in transmission connection with the chain wheel 103 on the speed reducer 102 through a transmission chain 104, and the speed reducer 102 is driven by the motor 101 to realize the rotary driving of the stirring shaft.
The stirring shaft is a hollow shaft 301, the top of the stirring shaft is provided with a rotary joint 400, and the rotary joint 400 is positioned outside the barrel 201. Two sets of blades 302 are arranged at the middle lower part of the stirring shaft, and each set of blades 302 comprises a plurality of stirring blades 302. The bottom surface of the blade 302 is provided with a vent pipe 303, one end of the vent pipe 303 is communicated with the hollow part of the hollow shaft 301, and the vent pipe 303 is provided with a plurality of small holes. Steam passes through the hollow part that revolution mechanic lets in the (mixing) shaft to flow out through a plurality of apertures on breather pipe 303, increase the heat transfer area of steam through breather pipe 303 and blade 302, reduce the heat transfer time, improve drying efficiency.
A distribution plate 205 is arranged at the bottom in the cylinder 201, the top of the distribution plate 205 is connected with the inner wall of the cylinder 201, and the bottom of the distribution plate 205 is connected with the top of the discharge hole 206; the height position of the gas inlet 204 is in the middle-lower part of the distribution plate 205; the distribution plate 205 is provided with a plurality of air holes. Steam entering from the air inlet 204 enters the cylinder 201 through the plurality of air holes in the distribution plate 205, so that on one hand, the material cannot block the air inlet 204, on the other hand, the steam entering from the air inlet 204 is distributed more uniformly, and the drying efficiency is further improved.
The side wall and the top of the cylinder 201 are provided with the jacket 207 to improve the heat preservation effect of the cylinder 201, improve the drying efficiency and save energy.
The outer wall of the barrel 201 is provided with a support lug 208. The support lug 208 is used for mounting and fixing the cylinder 201.
In the present invention, the aspect ratio of the cylinder is (1-10):1, and in this embodiment, the aspect ratio of the cylinder is preferably 4: 1. The length-diameter ratio of the cylinder is smaller, the contact area of gas and materials is increased, the residence time of cold gas after heat exchange is reduced, and the drying efficiency is improved
When the equipment runs, the speed reducer 102 of the motor 101 is started to drive the hollow shaft 301 to rotate, steam is introduced from the rotary joint 400 and the air inlet 204, and then materials are introduced from the feeding port 202. After a certain time, the heat-exchanged gas is discharged from the gas outlet 203, and the dried material is discharged from the discharge port 206.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the foregoing, the description is not to be taken in a limiting sense.
Claims (10)
1. A steamer for preparing polyolefin by SPG process is characterized by comprising a barrel body; a feed inlet and an air outlet are formed in the top of the cylinder body; an air inlet is formed in one side of the lower part of the cylinder body; a discharge hole is formed in the bottom of the cylinder; the stirring shaft is arranged in the barrel, and the top of the stirring shaft is in transmission connection with a driving mechanism.
2. A steamer for polyolefin through SPG process as claimed in claim 1, wherein the stirring shaft is a hollow shaft, and a rotary joint is provided on the top of the stirring shaft and is located outside the barrel.
3. A steamer for polyolefin manufactured by SPG process as claimed in claim 2, wherein the lower middle portion of the stirring shaft is provided with at least one set of blades.
4. A steamer for polyolefin through SPG process as claimed in claim 3, wherein the bottom surface of the blade is provided with a vent pipe, one end of the vent pipe is connected to the hollow part of the hollow shaft, and the vent pipe is provided with a plurality of small holes.
5. A steamer for manufacturing polyolefin according to the SPG process of claim 1, wherein the driving mechanism comprises a motor, a speed reducer, a sprocket and a chain; the top of (mixing) shaft is provided with one the sprocket, the motor with the input shaft of speed reducer is connected, the output shaft of speed reducer is provided with another the sprocket, the chain sets up in two between the sprocket.
6. A steamer for polyolefin through SPG process as claimed in claim 1, wherein the bottom of the inside of the barrel is provided with a distribution plate, the top of the distribution plate is connected to the inner wall of the barrel, and the bottom of the distribution plate is connected to the top of the discharge hole; the height position of the air inlet is positioned at the middle lower part of the distribution plate; the distribution plate is provided with a plurality of air holes.
7. A steamer for polyolefin by SPG process as claimed in claim 1, wherein the side wall and the top of the barrel are provided with a jacket.
8. A steamer for polyolefin through SPG process as claimed in claim 1, wherein a sealing filler is provided between the top of the barrel and the stirring shaft.
9. A steamer for polyolefin manufactured by SPG process as claimed in claim 1, wherein the outer wall of the barrel is provided with a support lug.
10. A steamer for polyolefin produced by SPG process according to claim 1, wherein the length-diameter ratio of the barrel is (1-10): 1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210511058.7A CN114877638A (en) | 2022-05-11 | 2022-05-11 | Steamer for preparing polyolefin by SPG (spray-steam-assisted gas) process |
| PCT/CN2023/075424 WO2023216658A1 (en) | 2022-05-11 | 2023-02-10 | Steamer for use in preparation of polyolefin by means of spg process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210511058.7A CN114877638A (en) | 2022-05-11 | 2022-05-11 | Steamer for preparing polyolefin by SPG (spray-steam-assisted gas) process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114877638A true CN114877638A (en) | 2022-08-09 |
Family
ID=82676141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210511058.7A Pending CN114877638A (en) | 2022-05-11 | 2022-05-11 | Steamer for preparing polyolefin by SPG (spray-steam-assisted gas) process |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114877638A (en) |
| WO (1) | WO2023216658A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023216658A1 (en) * | 2022-05-11 | 2023-11-16 | 天华化工机械及自动化研究设计院有限公司 | Steamer for use in preparation of polyolefin by means of spg process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5074057A (en) * | 1989-07-05 | 1991-12-24 | Masao Kanai | Drying apparatus having a vertical rotary spiral blade |
| JPH10298132A (en) * | 1997-04-24 | 1998-11-10 | Nof Corp | Production of ketene dimer |
| JPH11192057A (en) * | 1997-12-27 | 1999-07-21 | Miyamura Tekkosho:Kk | Steamed tea leave softener |
| CN2820500Y (en) * | 2005-06-02 | 2006-09-27 | 中国寰球工程公司 | Gas steaming device |
| CN209034189U (en) * | 2018-09-12 | 2019-06-28 | 湖南神斧集团一六九化工有限责任公司 | A kind of explosive raw material steam-stirring device |
| CN211754936U (en) * | 2019-12-23 | 2020-10-27 | 淄博天水新材料有限公司 | Reaction kettle for producing polymeric ferric sulfate |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| NL156733B (en) * | 1968-02-28 | 1978-05-16 | Stamicarbon | METHOD OF INSULATING POLYMERS OR COPOLYMERS DISSOLVED IN ORGANIC SOLVENT. |
| CN101573390A (en) * | 2006-12-29 | 2009-11-04 | 巴塞尔聚烯烃意大利有限责任公司 | Process for the polyolefin finishing |
| CN201410383Y (en) * | 2009-03-12 | 2010-02-24 | 兰州瑞德干燥技术有限公司 | Polypropylene steamer |
| CN205672587U (en) * | 2016-06-21 | 2016-11-09 | 台州市众力化工设备制造有限公司 | Scraper evaporator |
| CN107352772B (en) * | 2017-08-09 | 2022-10-11 | 南京中电环保工程有限公司 | Sludge preheating device and sludge drying system |
| CN107954585A (en) * | 2017-11-27 | 2018-04-24 | 江苏理工学院 | A kind of domestic sludge assists coal desiccation molding machine |
| CN111822099A (en) * | 2019-04-19 | 2020-10-27 | 合肥中亚建材装备有限责任公司 | Drying and stirring machine for vertical mill |
| CN111718434A (en) * | 2020-06-29 | 2020-09-29 | 天华化工机械及自动化研究设计院有限公司 | Polymer powder degassing bin |
| CN114877638A (en) * | 2022-05-11 | 2022-08-09 | 天华化工机械及自动化研究设计院有限公司 | Steamer for preparing polyolefin by SPG (spray-steam-assisted gas) process |
-
2022
- 2022-05-11 CN CN202210511058.7A patent/CN114877638A/en active Pending
-
2023
- 2023-02-10 WO PCT/CN2023/075424 patent/WO2023216658A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5074057A (en) * | 1989-07-05 | 1991-12-24 | Masao Kanai | Drying apparatus having a vertical rotary spiral blade |
| JPH10298132A (en) * | 1997-04-24 | 1998-11-10 | Nof Corp | Production of ketene dimer |
| JPH11192057A (en) * | 1997-12-27 | 1999-07-21 | Miyamura Tekkosho:Kk | Steamed tea leave softener |
| CN2820500Y (en) * | 2005-06-02 | 2006-09-27 | 中国寰球工程公司 | Gas steaming device |
| CN209034189U (en) * | 2018-09-12 | 2019-06-28 | 湖南神斧集团一六九化工有限责任公司 | A kind of explosive raw material steam-stirring device |
| CN211754936U (en) * | 2019-12-23 | 2020-10-27 | 淄博天水新材料有限公司 | Reaction kettle for producing polymeric ferric sulfate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023216658A1 (en) * | 2022-05-11 | 2023-11-16 | 天华化工机械及自动化研究设计院有限公司 | Steamer for use in preparation of polyolefin by means of spg process |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023216658A1 (en) | 2023-11-16 |
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