CN109694421A - A kind of heated type takes off VOC drying tower in polypropylene - Google Patents
A kind of heated type takes off VOC drying tower in polypropylene Download PDFInfo
- Publication number
- CN109694421A CN109694421A CN201910155185.6A CN201910155185A CN109694421A CN 109694421 A CN109694421 A CN 109694421A CN 201910155185 A CN201910155185 A CN 201910155185A CN 109694421 A CN109694421 A CN 109694421A
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- shell
- drying
- voc
- polypropylene
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- 238000001035 drying Methods 0.000 title claims abstract description 79
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 28
- -1 polypropylene Polymers 0.000 title claims abstract description 28
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 52
- 238000009826 distribution Methods 0.000 claims abstract description 12
- 235000003283 Pachira macrocarpa Nutrition 0.000 claims 1
- 241001083492 Trapa Species 0.000 claims 1
- 235000014364 Trapa natans Nutrition 0.000 claims 1
- 230000008676 import Effects 0.000 claims 1
- 235000009165 saligot Nutrition 0.000 claims 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 5
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 5
- 239000004571 lime Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000003195 fascia Anatomy 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
Classifications
-
- 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
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F10/04—Monomers containing three or four carbon atoms
- C08F10/06—Propene
Abstract
The invention discloses a kind of heated types to take off VOC drying tower in polypropylene, including shell, shell upper end is provided with material inlet, shell lower end is provided with material outlet, several drying tubes are provided in shell, steam is passed through in drying tube, shell is stretched out at drying tube both ends, one end of drying tube is steam inlet, the other end of drying tube is condensate outlet, and hull outside is provided with distribution grid, is provided with air outlet box on distribution grid, air outlet box corresponding position is provided with several apertures on shell, the air-introduced machine for gas to be discharged is provided in air outlet box.Several drying tubes disposed in parallel are arranged in the present invention in shell, material enters shell from material inlet, steam is passed through from steam inlet, and material is dried, and the steam by heat exchange becomes lime set and flows out from condensate outlet, after material is heated, the tail gas for having VOC is generated, tail gas is from the aperture discharge on shell, into air outlet box, under the action of air-introduced machine, it is discharged by air outlet.
Description
Technical field
The present invention relates to polypropylene technology fields, take off VOC drying tower in polypropylene more particularly to a kind of heated type.
Background technique
Polypropylene is widely used in fascia because having many advantages, such as excellent mechanical property and processing performance, control panel,
In the automotive upholsteries such as door-plate, seat component, glove box and air-conditioning system, account for about 40% of auto plastics or so.It is domestic at present
Polypropylene mostly uses liquid-phase bulk polymerization method to produce, and VOC content is more than 200ppm in product, and polypropylene articles are in higher temperature
Under release the VOC being detrimental to health to some extent.
GB/T27630 " Air Quality Evaluation guide in passenger car " is changed to mandatory country by recommendatory guide and marks
Standard, vehicle look forward to industry and are defined as polypropylene VOC content to be less than 80ppm.
In order to meet the market demand and environmental requirement, polypropylene manufacturing enterprise must further decrease VOC in polypropylene and contain
Amount.The equipment that VOC content in polypropylene can be effectively reduced in the country at present.
Summary of the invention
The object of the present invention is to provide a kind of heated types to take off VOC drying tower in polypropylene, is deposited with solving the above-mentioned prior art
The problem of, reduce VOC content.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of heated types to take off VOC drying tower in polypropylene, including shell, the shell upper end are provided with
Material inlet, the shell lower end are provided with material outlet, and several drying tubes are provided in the shell, are led in the drying tube
Enter steam, shell is stretched out at the drying tube both ends, and one end of the drying tube is steam inlet, the other end of the drying tube
For condensate outlet, the hull outside is provided with distribution grid, is provided with air outlet box on the distribution grid, on the shell with it is described
Air outlet box corresponding position is provided with several apertures, and the air-introduced machine for gas to be discharged, the air inducing are provided in the air outlet box
The air outlet of machine is arranged on the distribution grid.
Preferably, several drying tubes are horizontal and are arranged in parallel, and several layers are arranged in the shell in the drying tube,
Every layer of drying tube is several.
Preferably, the adjacent drying tube of the two neighboring drying tube of same layer and adjacent layer is in equilateral triangle
Interlaced arrangement.
Preferably, the drying tube is rhumbatron.
Preferably, several steam inlets are located at the same side.
Preferably, the steam inlet of the adjacent drying tube and the condensate outlet are located at the same side.
Preferably, the steam inlet of the drying tube of adjacent layer and the condensate outlet are located at the same side.
Preferably, the shell includes upper housing interconnected and lower case, and the upper housing is rectangular, the lower casing
Body is square cone, and the material outlet is provided with the rotary valve of control mass flow.
Preferably, the air outlet box is several, and is uniformly arranged on the hull outside.
Preferably, the diameter of the aperture is less than the diameter of material.
The present invention achieves following technical effect compared with the existing technology:
The present invention is arranged several drying tubes disposed in parallel in shell, and material enters shell from material inlet, steam from
Steam inlet is passed through, and material is dried, and the steam by heat exchange becomes lime set and flows out from condensate outlet, and material is heated
Afterwards, the tail gas for having VOC is generated, tail gas is from the aperture discharge on shell, into air outlet box, under the action of air-introduced machine, by going out
Air port discharge.In the drying process, since drying tube is rhumbatron, rhumbatron can be avoided enclosure interior and material dead angle occurs,
Material is set sufficiently to dry, and every layer of rhumbatron is in positive triangle interlaced arrangement, ensure that material between rhumbatron
The amount of even distribution, the material between each rhumbatron is identical, and uniform drying, rhumbatron comes into full contact with material, and drying effect is good, dry
Material afterwards is discharged from material outlet.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is that heated type of the invention takes off VOC drying tower schematic diagram in polypropylene；
Wherein: the steam inlet 1-, 2- drying tube, 3- condensate outlet, 4- shell, 5- air outlet, 6- material inlet, 7- material
Outlet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art under the premise of not making the creative labor it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of heated types to take off VOC drying tower in polypropylene, is deposited with solving the above-mentioned prior art
The problem of, reduce VOC content.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
A kind of heated type is present embodiments provided as shown in Figure 1: takes off VOC drying tower in polypropylene, including shell 4, shell 4
Including upper housing interconnected and lower case, upper housing be it is rectangular, lower case is square cone, and the shape of lower case is convenient for material
It is discharged after collecting from material outlet 7.Upper housing upper end is provided with material inlet 6, and lower case lower end is provided with material outlet 7, object
Material outlet 7 is provided with the rotary valve of control mass flow, the flow of material is controlled in material discharge, if being provided in upper housing
Dry drying tube 2 is passed through steam in drying tube 2, and shell 4 is stretched out at 2 both ends of drying tube, and one end of drying tube 2 is steam inlet 1,
The other end of drying tube 2 is condensate outlet 3, and drying tube 2 is preferably rhumbatron.Rhumbatron, which can be avoided inside shell 4, there is object
Expect dead angle, material is enable sufficiently to dry.Several layers are arranged in drying tube 2 in shell 4, and every layer of drying tube 2 is several, several
Drying tube 2 is horizontal and is arranged in parallel.The two neighboring drying tube 2 of same layer and the adjacent drying tube 2 of adjacent layer are in positive triangle
Shape interlaced arrangement, such arrangement ensure that the material that material can be uniformly distributed between diamond shape, between each rhumbatron
Measure identical, uniform drying, rhumbatron comes into full contact with material, and drying effect is good.In the present embodiment, steam inlet 1 and lime set go out
The arrangement mode of mouth 3 can be located at the steam inlet 1 and lime set of the same side or adjacent drying tube 2 for several steam inlets 1
Outlet 3 is located at the steam inlet 1 of the drying tube 2 of the same side or adjacent layer and condensate outlet 3 is located at the same side, guarantees drying
Steam in pipe 2 sufficiently exchanges heat with material.
In the present embodiment, it is provided with distribution grid on the outside of shell 4, air outlet box is provided on distribution grid, air outlet box is preferably three
It is a, and it is uniformly arranged on 4 outside of shell, the air-introduced machine for gas to be discharged is provided in air outlet box, the air outlet 5 of air-introduced machine is set
It sets on distribution grid, VOC tail gas is discharged air-introduced machine from air outlet 5.It is provided on shell 4 with air outlet box corresponding position several small
Hole, the diameter of aperture are less than the diameter of minimum material, both can guarantee that material will not be from aperture during VOC tail gas is discharged
Outflow, and can guarantee the normal discharge of VOC tail gas.
Several drying tubes disposed in parallel 2 are arranged in the present embodiment in shell 4, and material enters shell 4 from material inlet 6,
Steam is passed through from steam inlet 1, and material is dried, and the steam by heat exchange becomes lime set and flows out from condensate outlet 3, material
After being heated, the tail gas for having VOC is generated, tail gas is from the aperture discharge on shell 4, into air outlet box, in the effect of air-introduced machine
Under, it is discharged by air outlet 5.Each layer of drying tube 2 is parallel-connection structure, and drying tube 2 between layers is also and is coupled
Structure ensure that being uniformly distributed and quickly excluding for steam, reinforce heat transfer effect.In the drying process, since drying tube 2 is diamond shape
Pipe, rhumbatron, which can be avoided, there is material dead angle inside shell 4, so that material is sufficiently dried, and every layer of rhumbatron is in
Positive triangle interlaced arrangement ensure that material is uniformly distributed between rhumbatron, and the amount of the material between each rhumbatron is identical, dry equal
Even, rhumbatron comes into full contact with material, and drying effect is good, can be effectively reduced VOC content in polypropylene, material after drying
It is discharged from material outlet 7, the flow of material is controlled by rotary valve.
Apply that a specific example illustrates the principle and implementation of the invention in this specification, above embodiments
Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (10)
1. a kind of heated type takes off VOC drying tower in polypropylene, it is characterised in that: including shell, the shell upper end is provided with object
Expect import, the shell lower end is provided with material outlet, several drying tubes are provided in the shell, are passed through in the drying tube
Shell is stretched out at steam, the drying tube both ends, and one end of the drying tube is steam inlet, and the other end of the drying tube is
Condensate outlet, the hull outside are provided with distribution grid, are provided with air outlet box on the distribution grid, on the shell with it is described go out
Bellows corresponding position is provided with several apertures, and the air-introduced machine for gas to be discharged, the air-introduced machine are provided in the air outlet box
Air outlet be arranged on the distribution grid.
2. heated type according to claim 1 takes off VOC drying tower in polypropylene, it is characterised in that: several drying tubes
Several layers are arranged in horizontal and parallel arrangement, the drying tube in the shell, and every layer of drying tube is several.
3. heated type according to claim 2 takes off VOC drying tower in polypropylene, it is characterised in that: adjacent the two of same layer
The adjacent drying tube of a drying tube and adjacent layer is in equilateral triangle interlaced arrangement.
4. heated type according to claim 1 takes off VOC drying tower in polypropylene, it is characterised in that: the drying tube is water chestnut
Shape pipe.
5. heated type according to claim 1 takes off VOC drying tower in polypropylene, it is characterised in that: several steam enter
Mouth is located at the same side.
6. heated type according to claim 1 takes off VOC drying tower in polypropylene, it is characterised in that: the adjacent drying
The steam inlet of pipe and the condensate outlet are located at the same side.
7. heated type according to claim 2 takes off VOC drying tower in polypropylene, it is characterised in that: the described of adjacent layer does
The steam inlet of dry pipe and the condensate outlet are located at the same side.
8. heated type according to claim 1 takes off VOC drying tower in polypropylene, it is characterised in that: the shell includes phase
The upper housing and lower case to connect, the upper housing be it is rectangular, the lower case is square cone, and the material outlet is provided with
Control the rotary valve of mass flow.
9. heated type according to claim 1 takes off VOC drying tower in polypropylene, it is characterised in that: if the air outlet box is
Dry, and it is uniformly arranged on the hull outside.
10. heated type according to claim 1 takes off VOC drying tower in polypropylene, it is characterised in that: the diameter of the aperture
Less than the diameter of material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910155185.6A CN109694421A (en) | 2019-03-01 | 2019-03-01 | A kind of heated type takes off VOC drying tower in polypropylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910155185.6A CN109694421A (en) | 2019-03-01 | 2019-03-01 | A kind of heated type takes off VOC drying tower in polypropylene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109694421A true CN109694421A (en) | 2019-04-30 |
Family
ID=66233727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910155185.6A Pending CN109694421A (en) | 2019-03-01 | 2019-03-01 | A kind of heated type takes off VOC drying tower in polypropylene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109694421A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112142882A (en) * | 2020-09-25 | 2020-12-29 | 天华化工机械及自动化研究设计院有限公司 | VOC device in polypropylene is taken off to vapour method |
| WO2023087561A1 (en) * | 2021-11-17 | 2023-05-25 | 天华化工机械及自动化研究设计院有限公司 | Integrated voc removal tower for polypropylene particles |
| WO2024025742A1 (en) | 2022-07-25 | 2024-02-01 | Exxonmobil Chemical Patents Inc. | Purged polymer, process and apparatus for production thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2192858Y (en) * | 1994-03-01 | 1995-03-22 | 张儒庆 | Dry tower |
| CN201844669U (en) * | 2010-05-05 | 2011-05-25 | 李立和 | Quartz gravel drying tower |
| CN106168434A (en) * | 2016-08-29 | 2016-11-30 | 苏州龙杰特种纤维股份有限公司 | A kind of stagewise drying system |
| CN107289772A (en) * | 2016-03-30 | 2017-10-24 | 中国石油化工股份有限公司 | The water lift drying means of mobile bed drying tower and feed coal |
| CN207153421U (en) * | 2017-07-26 | 2018-03-30 | 日照广信化工科技有限公司 | A kind of drying tower for polypropylene production exhaust gas recovery system |
| CN108413719A (en) * | 2018-03-26 | 2018-08-17 | 天华化工机械及自动化研究设计院有限公司 | A method of volatile matter in polypropylene powder is removed using vacuum blade dryer |
| CN108466383A (en) * | 2018-03-26 | 2018-08-31 | 天华化工机械及自动化研究设计院有限公司 | A kind of PP GRANULES material takes off the system and its application process of VOC |
| CN210151003U (en) * | 2019-03-01 | 2020-03-17 | 中国石油化工股份有限公司 | Heating type drying tower for removing VOC (volatile organic compounds) in polypropylene |
-
2019
- 2019-03-01 CN CN201910155185.6A patent/CN109694421A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2192858Y (en) * | 1994-03-01 | 1995-03-22 | 张儒庆 | Dry tower |
| CN201844669U (en) * | 2010-05-05 | 2011-05-25 | 李立和 | Quartz gravel drying tower |
| CN107289772A (en) * | 2016-03-30 | 2017-10-24 | 中国石油化工股份有限公司 | The water lift drying means of mobile bed drying tower and feed coal |
| CN106168434A (en) * | 2016-08-29 | 2016-11-30 | 苏州龙杰特种纤维股份有限公司 | A kind of stagewise drying system |
| CN207153421U (en) * | 2017-07-26 | 2018-03-30 | 日照广信化工科技有限公司 | A kind of drying tower for polypropylene production exhaust gas recovery system |
| CN108413719A (en) * | 2018-03-26 | 2018-08-17 | 天华化工机械及自动化研究设计院有限公司 | A method of volatile matter in polypropylene powder is removed using vacuum blade dryer |
| CN108466383A (en) * | 2018-03-26 | 2018-08-31 | 天华化工机械及自动化研究设计院有限公司 | A kind of PP GRANULES material takes off the system and its application process of VOC |
| CN210151003U (en) * | 2019-03-01 | 2020-03-17 | 中国石油化工股份有限公司 | Heating type drying tower for removing VOC (volatile organic compounds) in polypropylene |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112142882A (en) * | 2020-09-25 | 2020-12-29 | 天华化工机械及自动化研究设计院有限公司 | VOC device in polypropylene is taken off to vapour method |
| CN112142882B (en) * | 2020-09-25 | 2023-11-24 | 天华化工机械及自动化研究设计院有限公司 | VOC device in polypropylene is taken off to vapour method |
| WO2023087561A1 (en) * | 2021-11-17 | 2023-05-25 | 天华化工机械及自动化研究设计院有限公司 | Integrated voc removal tower for polypropylene particles |
| WO2024025742A1 (en) | 2022-07-25 | 2024-02-01 | Exxonmobil Chemical Patents Inc. | Purged polymer, process and apparatus for production thereof |
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