CN115382849A - Dust treatment device between operation - Google Patents
Dust treatment device between operation Download PDFInfo
- Publication number
- CN115382849A CN115382849A CN202211024912.3A CN202211024912A CN115382849A CN 115382849 A CN115382849 A CN 115382849A CN 202211024912 A CN202211024912 A CN 202211024912A CN 115382849 A CN115382849 A CN 115382849A
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- CN
- China
- Prior art keywords
- pipeline section
- guide plate
- baffle
- section
- pipe
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
- B08B5/043—Cleaning travelling work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4227—Manipulating filters or filter elements, e.g. handles or extracting tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4236—Reducing noise or vibration emissions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a workshop dust treatment device, which comprises a workshop, a treatment chamber, a ceramic tile material part conveying channel, a pipeline, a bent pipe, a filtering assembly and a fan assembly, and is characterized in that: the return bend includes first pipeline section (61), second pipeline section (62), third pipeline section (63), fourth pipeline section (64), fifth pipeline section (65), sixth pipeline section (66), seventh pipeline section (67), and split type preparation forms between each pipeline section, be provided with first guide plate in the second pipeline section, be provided with the second guide plate in the third pipeline section, be provided with the third guide plate in the fourth pipeline section, be provided with the fourth guide plate in the fifth pipeline section, first guide plate, the second guide plate, the third guide plate, the quantity of fourth guide plate, the position along gas flow path corresponds the setting, along gas flow path, have the clearance between each adjacent guide plate, the sixth pipeline section is the shrink tube. The invention is formed by manufacturing the pipe sections in a split mode, so that the manufacturing cost of the bent pipe can be reduced, and the production cost is reduced.
Description
Technical Field
The invention relates to the technical field of ceramic and ceramic tile production and manufacturing processes, in particular to a dust treatment device in an operation room.
Background
As shown in fig. 4, the existing workshop dust treatment device includes a workshop, a dust removal chamber, a tile material conveying channel, a pipeline, a filtering assembly and a fan assembly, and the dust treatment device/system is used for performing dust removal/purification treatment on a tile production process. The elbow comprises a vertical section, a middle elbow transition section and a horizontal section, wherein one or more guide plates are arranged in the middle elbow transition section, and the guide plates are arc-shaped or bent. However, the existing elbow pipe is high in manufacturing cost, and once the elbow pipe is manufactured in a workshop, the elbow pipe with different curvature radiuses cannot be prepared again according to the field requirements.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the dust removal device for the ceramic tile material part, which is formed by manufacturing the pipe sections in a split mode, so that the manufacturing cost of a bent pipe can be reduced, and the production cost can be reduced; and the bent pipes with different curvature radiuses can be reconfigured according to the field requirements in a manufacturing workshop or an installation field, and the universal installation performance is very strong. According to the invention, through the design of the arc-shaped part, gas backflow at the gap between every two adjacent guide plates can be inhibited, so that the power loss of the fan and the noise can be reduced while the manufacturing is convenient.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a dust treatment device between operation, it includes operation room (1), process chamber (2), ceramic tile material spare transfer passage (3), branch pipe (4), be responsible for (5), return bend (6), first filter assembly (7), fan subassembly (8), second filter assembly (9), go out tuber pipe (10), be provided with one or more process chamber in the operation room, the both sides of process chamber are provided with ceramic tile material spare transfer passage, the process chamber upper end is through the branch pipe, be responsible for and be connected with the return bend, it is linked together through a plurality of branch pipes and process chamber and/or operation room to be responsible for, the return bend is connected in the top between the operation, the other end of return bend loops through first filter assembly, the fan subassembly, second filter assembly is connected with the play tuber pipe, its characterized in that: elbow pipe (6) include first pipeline section (61), second pipeline section (62), third pipeline section (63), fourth pipeline section (64), fifth pipeline section (65), sixth pipeline section (66), seventh pipeline section (67), and split type preparation forms between each pipeline section, the vertical setting of first pipeline section, be provided with first guide plate (621) in the second pipeline section, be provided with second guide plate (631) in the third pipeline section, be provided with third guide plate (641) in the fourth pipeline section, be provided with fourth guide plate (651) in the fifth pipeline section, first guide plate, the second guide plate, the third guide plate, the quantity of fourth guide plate, the position along gas flow path corresponds the setting, along gas flow path, have the clearance between adjacent each guide plate, the sixth pipeline section is the shrink pipe, the seventh pipeline section is the level setting.
Further, each tube section comprises an outer wall (633), an inner wall (634), a front edge (635), and a rear edge (636), the upstream end of the first baffle is flush with the front edge of the second tube section, the downstream end of the first baffle is flush with the rear edge of the second tube section, the upstream end of the second baffle is downstream of the front edge of the third tube section, the downstream end of the second baffle is flush with the rear edge of the third tube section, the upstream end of the third baffle is downstream of the front edge of the fourth tube section, the downstream end of the third baffle is flush with the rear edge of the fourth tube section, the upstream end of the fourth baffle is downstream of the front edge of the fifth tube section, and the downstream end of the fourth baffle is flush with the rear edge of the fifth tube section.
Further, the downstream ends of the first guide plate (621), the second guide plate (631) and the third guide plate (641) are provided with arc-shaped parts (622, 632, 642), and the arc-shaped parts are of a substantially spherical structure.
Further, from the outer wall (633) to the inner wall (634), widths b, a, b are respectively sequentially arranged between the outer wall, the inner wall and the guide plate, a > b, and a = (1.2-1.6) b.
Further, the second tube section (62), the third tube section (63), the fourth tube section (64) and the fifth tube section (65) have a sector angle of 5 °, 10 °, 15 °, 20 °, 25 °, 30 ° or 35 °, and each tube section is made to have a sector angle of 5 °, 10 °, 15 °, 20 °, 25 °, 30 ° or 35 °.
Further, the cone angle of the sixth pipe section (66) is 7-15 °.
Further, the gaps between adjacent individual baffles along the gas flow path gradually decrease from the outer wall (633) to the inner wall (634), and the lengths of the individual baffles along the gas flow path gradually decrease.
Further, the diameter of the spherical structure is 1.3-1.8 times of the thickness of the flow guide plate.
According to the dust removal device for the ceramic tile material part, the pipe sections are manufactured in a split mode, so that the manufacturing cost of the bent pipe can be reduced, and the production cost can be reduced; and the bent pipes with different curvature radiuses can be reconfigured according to the field requirements in a manufacturing workshop or an installation field, and the universal installation performance is very strong. According to the invention, through the design of the arc-shaped part, gas backflow at the gap between every two adjacent guide plates can be inhibited, so that the power loss of the fan and the noise can be reduced while the manufacturing is convenient.
Drawings
FIG. 1 is a schematic view of a dust treatment apparatus of a workshop according to the present invention;
FIG. 2 is a schematic view of a pipe bending structure of the dust treatment apparatus of the workshop according to the present invention;
FIG. 3 is a schematic view of a pipe bending structure of the dust treatment apparatus of the workshop according to the present invention;
fig. 4 is a schematic view of a prior art elbow structure.
In the figure: the device comprises a working room 1, a treatment chamber 2, a tile material conveying channel 3, a branch pipe 4, a main pipe 5, a bent pipe 6, a first filtering component 7, a fan component 8, a second filtering component 9 and an air outlet pipe 10; the first pipe section 61, the second pipe section 62, the third pipe section 63, the fourth pipe section 64, the fifth pipe section 65, the sixth pipe section 66, the seventh pipe section 67, the first baffle 621, the first arc-shaped portion 622, the second baffle 631, the second arc-shaped portion 632, the third baffle 641, the third arc-shaped portion 642, the fourth baffle 651, the outer wall 633, the inner wall 634, the front edge 635, and the rear edge 636.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-3, a workshop dust treatment device, it includes workshop 1, process chamber 2, ceramic tile material piece transfer passage 3, branch pipe 4, be responsible for 5, return bend 6, first filter assembly 7, fan subassembly 8, second filter assembly 9, go out tuber pipe 10, be provided with one or more process chamber 2 in the workshop 1, the both sides of process chamber 2 are provided with ceramic tile material piece transfer passage 3, ceramic tile material piece transfer passage 3 is used for the removal of ceramic tile and conveying mechanism, process chamber 2 upper end is through branch pipe 4, be responsible for 5 and return bend 6 and be connected, be responsible for 5 and be linked together with process chamber 2 and/or workshop 1 through a plurality of branch pipes 4, return bend 6 connects in the top of workshop 1, the other end of return bend 6 loops through first filter assembly 7, fan subassembly 8, second filter assembly 9 is connected with play tuber pipe 10, its characterized in that: the bent pipe 6 includes a first pipe section 61, a second pipe section 62, a third pipe section 63, a fourth pipe section 64, a fifth pipe section 65, a sixth pipe section 66, a seventh pipe section 67, and each pipe section is made in a split manner (such as formed by split welding or split assembly), the first pipe section 61 is vertically arranged, a first guide plate 621 is arranged in the second pipe section 62, a second guide plate 631 is arranged in the third pipe section 63, a third guide plate 641 is arranged in the fourth pipe section 64, a fourth guide plate 651 is arranged in the fifth pipe section 65, the first guide plate 621, the second guide plate 631, the third guide plate 641, the number of the fourth guide plates 65, the positions along the gas flow path are correspondingly arranged, gaps are arranged between adjacent guide plates along the gas flow path, the sixth pipe section 66 is a contraction pipe, and the seventh pipe section 67 is horizontally arranged.
Further, each tube segment comprises an outer wall 633, an inner wall 634, a front edge 635, and a rear edge 636, the upstream end of the first baffle 621 is flush with the front edge of the second tube segment 62, the downstream end of the first baffle 621 is flush with the rear edge of the second tube segment 62, the upstream end of the second baffle 631 is downstream of the front edge of the third tube segment 63, the downstream end of the second baffle 631 is flush with the rear edge of the third tube segment 63, the upstream end of the third baffle 641 is downstream of the front edge of the fourth tube segment 64, the downstream end of the third baffle 641 is flush with the rear edge of the fourth tube segment 64, the upstream end of the fourth baffle 651 is downstream of the front edge of the fifth tube segment 65, and the downstream end of the fourth baffle 651 is flush with the rear edge of the fifth tube segment 65.
Further, the downstream ends of the first guiding plate 621, the second guiding plate 631 and the third guiding plate 641 are provided with arc-shaped portions (622, 632, 642), and the arc-shaped portions are of a substantially spherical structure; the diameter of the spherical structure is 1.3-1.8 times of the thickness of the guide plate. According to the invention, through the design of the arc-shaped parts (622, 632, 642), gas backflow at the gaps between every two adjacent guide plates can be inhibited, so that the fan is convenient to manufacture, and the power loss and the noise of the fan can be reduced.
Further, from the outer wall 633 to the inner wall 634, the outer wall, the inner wall and the deflector have widths b, a, b, a > b, respectively, in this order, and a = (1.2-1.6) b, preferably a = (1.3-1.4) b. The pressure distribution of the bent pipe section can be improved, and the power loss of the fan is reduced.
Further, the fan angles of the second, third, fourth and fifth pipe sections 62, 63, 64 and 65 are 5 °, 10 °, 15 °, 20 °, 25 °, 30 ° and 35 °, preferably, each pipe section can be made into 10 °, 15 °, 20 °, 25 ° and 30 °. The invention is formed by manufacturing the pipe sections in a split manner, so that the manufacturing cost of the bent pipe can be reduced, and the production cost is reduced; and the bent pipes with different curvature radiuses can be reconfigured according to the field requirements in a manufacturing workshop or an installation field, so that the universal installation performance is very strong.
Further, the cone angle of the sixth tube section 66 is 8-13 °, preferably 10 °.
Further, from the outer wall 633 to the inner wall 634, gaps between adjacent ones of the baffles along the gas flow path gradually decrease in proportion, and lengths of the individual baffles along the gas flow path gradually decrease in proportion.
According to the dust treatment device for the workshop, the pipe sections are manufactured in a split mode, so that the manufacturing cost of the bent pipe can be reduced, and the production cost can be reduced; and the bent pipes with different curvature radiuses can be reconfigured according to the field requirements in a manufacturing workshop or an installation field, and the universal installation performance is very strong. According to the invention, through the design of the arc-shaped part, gas backflow at the gap between every two adjacent guide plates can be inhibited, so that the power loss of the fan and the noise can be reduced while the manufacturing is convenient.
The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (8)
1. The utility model provides a dust treatment device between operation, it includes operation room (1), process chamber (2), ceramic tile material spare transfer passage (3), branch pipe (4), be responsible for (5), return bend (6), first filtering component (7), fan subassembly (8), second filtering component (9), go out tuber pipe (10), be provided with one or more process chamber in the operation room, the both sides of process chamber are provided with ceramic tile material spare transfer passage, the process chamber upper end is through the branch pipe, be responsible for and be connected with the return bend, be responsible for and be linked together through between a plurality of branch pipes and process chamber and/or operation, the return bend is connected in the top between the operation, the other end of return bend loops through first filtering component, the fan subassembly, second filtering component is connected with the play tuber pipe, its characterized in that: elbow pipe (6) include first pipeline section (61), second pipeline section (62), third pipeline section (63), fourth pipeline section (64), fifth pipeline section (65), sixth pipeline section (66), seventh pipeline section (67), and split type preparation forms between each pipeline section, the vertical setting of first pipeline section, be provided with first guide plate (621) in the second pipeline section, be provided with second guide plate (631) in the third pipeline section, be provided with third guide plate (641) in the fourth pipeline section, be provided with fourth guide plate (651) in the fifth pipeline section, first guide plate, the second guide plate, the third guide plate, the quantity of fourth guide plate, the position along gas flow path corresponds the setting, along gas flow path, have the clearance between adjacent each guide plate, the sixth pipeline section is the shrink pipe, the seventh pipeline section is the level setting.
2. A plant dust management apparatus as claimed in claim 1, wherein each of the tube sections includes an outer wall (633), an inner wall (634), a front edge (635), and a rear edge (636), wherein the upstream end of the first baffle is flush with the front edge of the second tube section, the downstream end of the first baffle is flush with the rear edge of the second tube section, the upstream end of the second baffle is downstream of the front edge of the third tube section, the downstream end of the second baffle is flush with the rear edge of the third tube section, the upstream end of the third baffle is downstream of the front edge of the fourth tube section, the downstream end of the third baffle is flush with the rear edge of the fourth tube section, the upstream end of the fourth baffle is downstream of the front edge of the fifth tube section, and the downstream end of the fourth baffle is flush with the rear edge of the fifth tube section.
3. The dust collecting apparatus of claim 2, wherein the downstream ends of the first baffle (621), the second baffle (631), and the third baffle (641) are provided with arc portions (622, 632, 642) having a substantially spherical configuration.
4. A plant dust handling apparatus as claimed in claim 3, wherein the width b, a, b, a > b, and a = (1.2-1.6) b, respectively, is between the outer wall (633) and the inner wall (634) in this order.
5. A plant dust handling arrangement according to claim 4, characterized in that the second (62), third (63), fourth (64) and fifth (65) tube sections have a sector angle of 5 °, 10 °, 15 °, 20 °, 25 °, 30 ° or 35 °, each of which is made as 5 °, 10 °, 15 °, 20 °, 25 °, 30 ° or 35 °.
6. A plant dust handling unit according to claim 5, in which the angle of taper of the sixth pipe section (66) is 7-15 °.
7. A plant dust handling apparatus according to claim 6, in which the gaps between adjacent baffles along the gas flow path progressively decrease from the outer wall (633) to the inner wall (634), and the lengths of the baffles in the direction of the gas flow path progressively decrease.
8. A plant dust handling unit as claimed in claim 3 or claim 6, in which the diameter of the spherical formation is 1.3 to 1.8 times the thickness of the deflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211024912.3A CN115382849B (en) | 2022-08-25 | 2022-08-25 | Dust treatment device between operations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211024912.3A CN115382849B (en) | 2022-08-25 | 2022-08-25 | Dust treatment device between operations |
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| Publication Number | Publication Date |
|---|---|
| CN115382849A true CN115382849A (en) | 2022-11-25 |
| CN115382849B CN115382849B (en) | 2023-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211024912.3A Active CN115382849B (en) | 2022-08-25 | 2022-08-25 | Dust treatment device between operations |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201416721Y (en) * | 2009-03-31 | 2010-03-03 | 湖南精城特种陶瓷有限公司 | Splicing type integral ceramic-ring lining abrasion-resisting ceramic bent pipe |
| CN201840953U (en) * | 2010-11-15 | 2011-05-25 | 洁华控股股份有限公司 | Air-intaking bent pipe with guide plate for deduster |
| CN202951238U (en) * | 2012-12-20 | 2013-05-29 | 辽宁鞍特钢结构集团有限公司 | Guiding device of circulating flight experience cabin air duct |
| CN205491650U (en) * | 2016-03-21 | 2016-08-17 | 洛阳国润新材料科技股份有限公司 | Ultrahigh molecular weight polyethylene shields return bend |
| CN205995862U (en) * | 2016-08-18 | 2017-03-08 | 醴陵市和泰陶瓷制造有限公司 | Grey soot blowing all-in-one inhaled by a kind of pottery |
| CN106914467A (en) * | 2017-03-13 | 2017-07-04 | 江苏中热机械设备有限公司 | A kind of waste gas header of electric heating oil bath furnace |
| CN109621635A (en) * | 2018-11-14 | 2019-04-16 | 华中科技大学 | A kind of deflector divides equally the Effuser device and its removal of mercury air flue equipment of particle |
| CN209286861U (en) * | 2018-11-15 | 2019-08-23 | 山西太谷明兴碳素玛钢有限公司 | One kind being used for graphite factory dust treatment device |
| CN210214204U (en) * | 2019-05-31 | 2020-03-31 | 中山市四海智能装备有限公司 | Dustproof and anti-adhesion belt conveyor |
| CN211344467U (en) * | 2019-12-31 | 2020-08-25 | 大连益多管道有限公司 | Heat insulation type bent pipe is strengthened to rain-proof cap that keeps warm |
| CN112749439A (en) * | 2019-10-30 | 2021-05-04 | 沪东重机有限公司 | Method for arranging flow deflectors for splicing bent pipes |
-
2022
- 2022-08-25 CN CN202211024912.3A patent/CN115382849B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201416721Y (en) * | 2009-03-31 | 2010-03-03 | 湖南精城特种陶瓷有限公司 | Splicing type integral ceramic-ring lining abrasion-resisting ceramic bent pipe |
| CN201840953U (en) * | 2010-11-15 | 2011-05-25 | 洁华控股股份有限公司 | Air-intaking bent pipe with guide plate for deduster |
| CN202951238U (en) * | 2012-12-20 | 2013-05-29 | 辽宁鞍特钢结构集团有限公司 | Guiding device of circulating flight experience cabin air duct |
| CN205491650U (en) * | 2016-03-21 | 2016-08-17 | 洛阳国润新材料科技股份有限公司 | Ultrahigh molecular weight polyethylene shields return bend |
| CN205995862U (en) * | 2016-08-18 | 2017-03-08 | 醴陵市和泰陶瓷制造有限公司 | Grey soot blowing all-in-one inhaled by a kind of pottery |
| CN106914467A (en) * | 2017-03-13 | 2017-07-04 | 江苏中热机械设备有限公司 | A kind of waste gas header of electric heating oil bath furnace |
| CN109621635A (en) * | 2018-11-14 | 2019-04-16 | 华中科技大学 | A kind of deflector divides equally the Effuser device and its removal of mercury air flue equipment of particle |
| CN209286861U (en) * | 2018-11-15 | 2019-08-23 | 山西太谷明兴碳素玛钢有限公司 | One kind being used for graphite factory dust treatment device |
| CN210214204U (en) * | 2019-05-31 | 2020-03-31 | 中山市四海智能装备有限公司 | Dustproof and anti-adhesion belt conveyor |
| CN112749439A (en) * | 2019-10-30 | 2021-05-04 | 沪东重机有限公司 | Method for arranging flow deflectors for splicing bent pipes |
| CN211344467U (en) * | 2019-12-31 | 2020-08-25 | 大连益多管道有限公司 | Heat insulation type bent pipe is strengthened to rain-proof cap that keeps warm |
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| CN115382849B (en) | 2023-08-04 |
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