CN210151003U - Heating type drying tower for removing VOC (volatile organic compounds) in polypropylene - Google Patents
Heating type drying tower for removing VOC (volatile organic compounds) in polypropylene Download PDFInfo
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- CN210151003U CN210151003U CN201920267268.XU CN201920267268U CN210151003U CN 210151003 U CN210151003 U CN 210151003U CN 201920267268 U CN201920267268 U CN 201920267268U CN 210151003 U CN210151003 U CN 210151003U
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Abstract
The utility model discloses a heating formula takes off VOC drying tower in polypropylene, which comprises a housin, the casing upper end is provided with the material import, and the casing lower extreme is provided with the material export, is provided with a plurality of drying tubes in the casing, lets in steam in the drying tube, and the casing is all stretched out at the drying tube both ends, and the one end of drying tube is steam inlet, and the other end of drying tube is the lime set export, and the casing outside is provided with the distributing plate, is provided with out bellows on the distributing plate, corresponds the position with the air-out case on the casing and is provided with a plurality of apertures, is provided with the draught. The utility model discloses set up a plurality of parallel arrangement's drying tube in the casing, the material gets into the casing from the material import, and steam lets in from steam inlet, carries out the drying to the material, and the steam through the heat transfer becomes the lime set and flows from the lime set export, and the material is heated the back, produces the tail gas that has VOC, and tail gas is discharged from the aperture on the casing, gets into out bellows, under the effect of draught fan, is discharged by the air outlet.
Description
Technical Field
The utility model relates to a polypropylene technical field especially relates to a VOC drying tower in polypropylene is taken off to heating formula.
Background
The polypropylene has the advantages of excellent mechanical property, processability and the like, is widely applied to automobile interior parts such as automobile instrument panels, control panels, door panels, seat parts, glove boxes, air conditioning systems and the like, and accounts for about 40 percent of automobile plastic. At present, domestic polypropylene is mostly produced by a liquid-phase bulk polymerization method, the VOC content in the product exceeds 200ppm, and the polypropylene product releases VOC harmful to human health to different degrees at higher temperature.
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.
In order to meet market demand and environmental requirements, polypropylene manufacturers must further reduce the VOC content of polypropylene. At present, no equipment capable of effectively reducing the VOC content in polypropylene exists in China.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a VOC drying tower in polypropylene is taken off to heating formula to solve the problem that above-mentioned prior art exists, VOC content reduces in making the polypropylene.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a VOC drying tower in polypropylene is taken off to heating formula, which comprises a housin, the casing upper end is provided with the material import, the casing lower extreme is provided with the material export, be provided with a plurality of drying tubes in the casing, let in steam in the drying tube, the casing is all stretched out at the drying tube both ends, the one end of drying tube is steam inlet, the other end of drying tube is the lime set export, the casing outside is provided with the distributing plate, be provided with out bellows on the distributing plate, on the casing with it is provided with a plurality of apertures to go out bellows corresponding position, be provided with the draught fan that is used for exhaust gas in going out the bellows, the air outlet setting of draught fan is in on the distributing plate.
Preferably, the plurality of drying pipes are arranged horizontally and in parallel, the plurality of layers of drying pipes are arranged in the shell, and each layer of drying pipes is provided with a plurality of drying pipes.
Preferably, two adjacent drying pipes in the same layer and adjacent drying pipes in the adjacent layer are arranged in a regular triangle staggered manner.
Preferably, the drying pipe is a rhombic pipe.
Preferably, several of said steam inlets are located on the same side.
Preferably, the steam inlet and the condensate outlet of adjacent drying tubes are located on the same side.
Preferably, the steam inlet and the condensate outlet of the drying tube of adjacent layers are located on the same side.
Preferably, the shell comprises an upper shell and a lower shell which are connected with each other, the upper shell is square, the lower shell is square-cone-shaped, and the material outlet is provided with a rotary valve for controlling the material flow.
Preferably, the air outlet boxes are a plurality of air outlet boxes and are uniformly arranged on the outer side of the shell.
Preferably, the diameter of the small hole is smaller than the diameter of the material.
The utility model discloses for prior art gain following technological effect:
the utility model discloses set up a plurality of parallel arrangement's drying tube in the casing, the material gets into the casing from the material import, and steam lets in from steam inlet, carries out the drying to the material, and the steam through the heat transfer becomes the lime set and flows from the lime set export, and the material is heated the back, produces the tail gas that has VOC, and tail gas is discharged from the aperture on the casing, gets into out bellows, under the effect of draught fan, is discharged by the air outlet. In the drying process, because the drying tube is the diamond-shaped pipe, the diamond-shaped pipe can avoid the inside material dead angle that appears of casing, makes the material can fully dry to the diamond-shaped pipe on every layer is regular triangle staggered arrangement, has guaranteed that the material evenly distributed between the diamond-shaped pipe, and the volume of the material between each diamond-shaped pipe is the same, and is dry even, diamond-shaped pipe and material fully contact, and drying effect is good, and the material after the drying is discharged from the material export.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a heating type drying tower for removing VOC in polypropylene according to the present invention;
wherein: 1-steam inlet, 2-drying tube, 3-condensate outlet, 4-shell, 5-air outlet, 6-material inlet and 7-material outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model aims at providing a VOC drying tower in polypropylene is taken off to heating formula to solve the problem that above-mentioned prior art exists, VOC content reduces in making the polypropylene.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1: the embodiment provides a VOC drying tower in polypropylene is taken off to heating formula, including casing 4, casing 4 includes interconnect's last casing and lower casing, goes up the casing and is square, and lower casing is the square toper, and the shape of lower casing is convenient for the material to collect the back and is discharged from material export 7. Go up the casing upper end and be provided with material import 6, the casing lower extreme is provided with material export 7 down, material export 7 is provided with the rotary valve of control material flow, the flow of control material when the material is discharged is provided with a plurality of drying tube 2 in the upper casing, lets in steam in drying tube 2, casing 4 is all stretched out at drying tube 2 both ends, the one end of drying tube 2 is steam inlet 1, the other end of drying tube 2 is the lime set export 3, drying tube 2 is preferred diamond-shaped pipe. The rhombus pipe can avoid the inside material dead angle that appears of casing 4, makes the material can fully dry. The drying pipes 2 are arranged in the shell 4 in a plurality of layers, each layer of drying pipes 2 is a plurality of, and the plurality of drying pipes 2 are horizontally and parallelly arranged. Two adjacent drying tube 2 of same layer are regular triangle staggered arrangement with adjacent drying tube 2 of adjacent layer, and such arrangement has guaranteed that the material can evenly distributed between the rhombus, and the quantity of the material between each rhombus pipe is the same, and is dry even, and the rhombus pipe fully contacts with the material, and drying effect is good. In this embodiment, the arrangement mode of steam inlet 1 and condensate outlet 3 can be that a plurality of steam inlets 1 are located same side, or steam inlet 1 and condensate outlet 3 of adjacent drying tube 2 are located same side, guarantee that the steam in drying tube 2 and the abundant heat transfer of material.
In this embodiment, the distribution plate is disposed on the outer side of the casing 4, the distribution plate is provided with air outlet boxes, the number of the air outlet boxes is preferably three, and the air outlet boxes are uniformly disposed on the outer side of the casing 4, an induced draft fan for exhausting air is disposed in the air outlet boxes, the air outlet 5 of the induced draft fan is disposed on the distribution plate, and the induced draft fan discharges the VOC tail gas from the air outlet 5. The position that corresponds with the air-out case on casing 4 is provided with a plurality of apertures, and the diameter of aperture is less than the diameter of minimum material, can guarantee at discharge VOC tail gas in-process, and the material can not flow from the aperture, can guarantee the normal discharge of VOC tail gas again.
This embodiment sets up a plurality of parallel arrangement's drying tube 2 in casing 4, and the material gets into casing 4 from material import 6, and steam lets in from steam inlet 1, carries out the drying to the material, and the steam through the heat transfer becomes the lime set and flows out from lime set export 3, and the material is heated the back, produces the tail gas that has VOC, and tail gas is discharged from the aperture on casing 4, gets into out bellows, under the effect of draught fan, by 5 discharges of air outlet. The drying tubes 2 of each layer are of parallel structures, and the drying tubes 2 between the layers are also of parallel structures, so that the uniform distribution and the rapid removal of steam are ensured, and the heat exchange effect is enhanced. In the drying process, because drying tube 2 is the diamond pipe, the diamond pipe can avoid 4 inside material dead angles that appear in the casing, make the material can fully dry, and the diamond pipe on every layer is regular triangle staggered arrangement, guaranteed that the material evenly distributed between the diamond pipe, the quantity of the material between each diamond pipe is the same, it is dry even, the diamond pipe fully contacts with the material, drying effect is good, can effectively reduce VOC content in the polypropylene, material after the drying is discharged from material outlet 7, flow through the rotary valve control material.
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 the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. The utility model provides a heating formula takes off VOC drying tower in polypropylene which characterized in that: the steam drying device comprises a housin, the casing upper end is provided with the material import, the casing lower extreme is provided with the material export, be provided with a plurality of drying tubes in the casing, let in steam in the drying tube, the casing is all stretched out at the drying tube both ends, the one end of drying tube is steam inlet, the other end of drying tube is the lime set export, the casing outside is provided with the distributing plate, be provided with out bellows on the distributing plate, on the casing with it is provided with a plurality of apertures to go out bellows corresponding position, be provided with the draught fan that is used for exhaust gas in going out the bellows, the air outlet setting of draught fan is in on the distributing plate.
2. The tower of claim 1, wherein: the drying pipes are horizontally and parallelly arranged, the drying pipes are arranged in the shell in a plurality of layers, and each layer of the drying pipes is provided with a plurality of drying pipes.
3. The tower of claim 2, wherein: two adjacent drying pipes on the same layer and the adjacent drying pipes on the adjacent layer are arranged in a regular triangle staggered mode.
4. The tower of claim 1, wherein: the drying pipe is a rhombic pipe.
5. The tower of claim 1, wherein: several of the steam inlets are located on the same side.
6. The tower of claim 1, wherein: the steam inlet and the condensate outlet of the adjacent drying tubes are positioned on the same side.
7. The tower of claim 2, wherein: the steam inlet and the condensate outlet of the drying tube of the adjacent layer are positioned on the same side.
8. The tower of claim 1, wherein: the shell comprises an upper shell and a lower shell which are connected with each other, the upper shell is square, the lower shell is square-cone-shaped, and the material outlet is provided with a rotary valve for controlling the material flow.
9. The tower of claim 1, wherein: the air outlet boxes are a plurality of and are uniformly arranged on the outer side of the shell.
10. The tower of claim 1, wherein: the diameter of the small hole is smaller than that of the material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920267268.XU CN210151003U (en) | 2019-03-01 | 2019-03-01 | Heating type drying tower for removing VOC (volatile organic compounds) in polypropylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920267268.XU CN210151003U (en) | 2019-03-01 | 2019-03-01 | Heating type drying tower for removing VOC (volatile organic compounds) in polypropylene |
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| Publication Number | Publication Date |
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| CN210151003U true CN210151003U (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920267268.XU Active CN210151003U (en) | 2019-03-01 | 2019-03-01 | Heating type drying tower for removing VOC (volatile organic compounds) in polypropylene |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109694421A (en) * | 2019-03-01 | 2019-04-30 | 中国石油化工股份有限公司 | A kind of heated type takes off VOC drying tower in polypropylene |
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2019
- 2019-03-01 CN CN201920267268.XU patent/CN210151003U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109694421A (en) * | 2019-03-01 | 2019-04-30 | 中国石油化工股份有限公司 | A kind of heated type takes off VOC drying tower in polypropylene |
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