CN1959318A - Revolving drier of precise terephthalic acid (PTA)steam - Google Patents
Revolving drier of precise terephthalic acid (PTA)steam Download PDFInfo
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- CN1959318A CN1959318A CN 200610070168 CN200610070168A CN1959318A CN 1959318 A CN1959318 A CN 1959318A CN 200610070168 CN200610070168 CN 200610070168 CN 200610070168 A CN200610070168 A CN 200610070168A CN 1959318 A CN1959318 A CN 1959318A
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- pta
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- phthalic acid
- rotary dryer
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Abstract
A steam rotation dryer of refined PTA is prepared as connecting front end of cylinder body to material feeder, supporting cylinder body by supporting wheel and rolling ring, engaging small tooth of driving unit with big tooth ring on cylinder body, setting material in end of cylinder body to be higher than material out end in slope way, arranging some heating tubes in said body, connecting said heating tubes to steam chamber being connected with steam shaft at tail of said body, setting steam inlet on steam shaft, welding some grab plates cylinder wall between heating pipes and setting knocker on external wall of said body at material in end.
Description
Technical field
The present invention relates to a kind of drying machinery, specifically a kind of dry steam rotary dryer of p-phthalic acid (PTA) that is applied to.
Background technology
We know that p-phthalic acid (PTA) is the important source material of producing polyester slice.At present, the production technology of domestic PTA and the basic dependence of device import, the patented technology of producing PTA in the world mainly contains U.S. Amoco patent, Mitsui oiling house journal, Britain ICI (now being DUPONT Britain company) patent.Drying is one of important procedure of producing PTA semi-finished product and final products, and the performance of drying machine and operation conditions directly have influence on the PTA end product quality.At present, the drying machine that domestic PTA manufacturer uses is Mitsui shipbuilding Co., Ltd. substantially and Tsukijima Machine Co., Ltd manufactures and designs, but its investment is big, the cost height, and maintenance of equipment and damageable spare parts are changed inconvenience.
Along with the fast development of domestic textile clothing industry, will be most important as the supply of the PTA of terylene primary raw material to the development of textile chemical fiber industry, simultaneously,, also greatly enlarged demand to PTA along with the urgency of demands such as polyester film, polyester bottles, polyester sheet increases.Prediction to 2010 a year PTA demand will reach 1,700 ten thousand tons, and the PTA project is gradually to large scale development, and the PTA project planned to build of China is all in the production scale of producing ten thousand tons of 60-100 per year at present.According to statistics, following 10-15 might build 20-25 and overlaps large-scale PTA complexes.Design a kind of special-purpose drying machine of suitable domestic production needs, can reduce investment and production cost greatly, improve the competitiveness of domestic PTA product on market.
Summary of the invention
The present invention is for overcoming above-mentioned the deficiencies in the prior art, provide a kind of stable, operating maintenance convenient, the thermal efficiency is high, production capacity is big, the p-phthalic acid of constant product quality (PTA) steam rotary dryer.The objective of the invention is to adopt following technical proposals to realize: a kind of p-phthalic acid (PTA) steam rotary dryer, mainly form by cylindrical shell, flight, heating tube, support pipe support, bull gear, rolling ring, steam chest, vapour axle, steam inlet, condensation-water drain, discharge gate, drainpipe, catch wheel device, transmission device and riding wheel apparatus, barrel front end is connected with charger, cylindrical shell is realized supporting by riding wheel apparatus and rolling ring, the pinion of transmission device is meshed with bull gear on the cylindrical shell, and cylindrical shell is installed with the high discharge end low dip of feed end; Be provided with the heating tube through whole cylindrical shell in cylindrical shell, heating tube supports by supporting pipe support.Heating tube communicates with steam chest, and steam chest communicates with the vapour axle of cylindrical shell afterbody, and the vapour axle is provided with steam inlet, is welded with the flight of some on the barrel between the heating tube; Being provided with knocker, be provided with drainpipe in cylindrical shell steam chest outside near on the outer wall of feed end cylindrical shell.
The gradient that described cylindrical shell tilts to install is 1.5: 100 to 2.0: 100.
Described heating tube is lined up the 3-5 circle in concentrically ringed mode, and every circle pipe number can equate, also can not wait.
Described transmission device comprises can be by the power that manual clutch the switches two cover transmission systems different with rotating speed.
Be equipped with a not condensing tubule in the described every heating tube, the condensing tubule is not connected with condensing ring main not, and the condensing ring main is not provided with air bleeding valve; The condensing ring main is not located at the head or the afterbody of drying machine.
Described steam chest is the cake type.
Be provided with 2-4 sheet spiral stator in the jacket pipe as hydrophobic channel in the described vapour axle.
Described charger adopts the ribbon form, and central passage is discharged the passage of drying machine as taking humid gas, is provided with support bar at a certain distance between the axle of charger and the ribbon.
Be provided with the discharging cover at drying machine cylindrical shell afterbody, discharging cover top is provided with air inlet; The cylindrical shell discharge end is provided with collet, can regulate the height of collet by the collet governor motion.
The charging and discharging sealing adopts packing seal to add the version of sealing gland.
The present invention adopts technique scheme to have following characteristics:
1. adopt saturated/superheated steam as thermal source, baking temperature is stable, makes the dry run of product be easy to control, uniform in quality.Adopt the indirect heat exchange mode of heating tube, make product not contaminated, good product quality.
2. be welded with the flight of some on the barrel between the heating tube, can strengthen the material movement in the tube, make to contact more fully between material and heat exchanger tube, heat and mass transfer enhancement improves the thermal efficiency.
3. transmission device is provided with fast, slow two cover transmission systems, and the power of slow transmission system is little, and rotating speed is slow, is used for situations such as device power-up, maintenance and maintenance, makes the maintenance of equipment convenient.Can switch by manual clutch between two cover transmission systems.
4. it is external that the drainpipe of drying machine is located at drum dryer, do not influence the material movement in the drying machine on the one hand, do not take the tapping channel of material; On the other hand, conveniently drainpipe is overhauled, can in time find the fault of drainpipe, and convenient the repairing or replacing.
5. adopt cake type steam chest, be convenient to make processing.
6. be provided with 2-4 sheet spiral stator in the vapour axle in the jacket pipe as hydrophobic channel, strengthened hydrophobic ability greatly, guaranteed drying effect.
7. charger adopts the ribbon form, and central passage is discharged the passage of drying machine as taking humid gas.The support bar of She Zhiing has certain fragmentation to material in material conveying process at a certain distance, prevents that material from luming in tube, and the specific area of material is increased, and has strengthened the heat exchange effect.
8. the charging and discharging sealing adopts packing seal to add the version of sealing gland, has guaranteed sealing effectiveness.
9. because of material leans on the part moisture percentage of feed end into higher at drying machine, more sticking wall so be provided with knocker near on preceding 1/4～1/3 cylinder body outer wall of feed end, knocks barrel with the cylindrical shell rotation, can alleviate the wall sticking phenomenon of material effectively.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is an inner barrel structural representation of the present invention;
Fig. 3 is a vapour axle hydrophobic channel structural representation of the present invention;
Fig. 4 is a charger ribbon structural representation of the present invention;
Fig. 5 is a transmission device schematic diagram of the present invention;
Wherein 1, charging aperture, 2, the charging sealing, 3, knocker, 4, rolling ring, 5, cylindrical shell, 6, bull gear, 7, steam chest, 8, condensing ring main not, 9, take the moisture import, 10, the vapour axle, 11, steam inlet, 12, condensation-water drain, 13, discharge gate, 14, drainpipe, 15, catch wheel device, 16, transmission device, 17, riding wheel apparatus, 18, charger, 19, flight, 20, support pipe support, 21, heating tube, 22, hydrophobic channel, 23, adpting flange, 24, the spiral stator, 25, closure plate, 26, delivery port, 27, motor, 28, support bar, 29, ribbon, 30, axle, 31, fast transmission system, 32, manual clutch, 33, slow transmission system, 34, output shaft, 35, reductor.36, discharging sealing, 37, collet, 38, the collet governor motion.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
Embodiment: as shown in Figure 1 and Figure 2, the steam rotary dryer main body is a cylindrical shell 5 that rotates, in cylindrical shell 5, be provided with heating tube 21 through whole cylindrical shell, heating tube 21 supports by supporting pipe support 20, rotate with cylindrical shell 5, usually line up the 3-5 circle in concentrically ringed mode, every circle pipe number can equate, also can not wait.Dry institute calorific requirement is provided by heating tube 21, and heating tube 21 communicates with steam chest 7.Steam chest 7 is the cake type.Steam chest 7 communicates with the vapour axle 10 of cylindrical shell 5 afterbodys, and vapour axle 10 is provided with steam inlet 11.On the barrel between the heating tube 21, be welded with the flight 19 of some.Cylindrical shell 5 tilts to install with 1.5: 100 to 2.0: 100 gradient, the feed end height, and discharge end is low.Material to be dried is by in the charger 18 feeding drying machines, rotation along with cylindrical shell 5, under the effect of heating tube 21, flight 19 and self gravitation, promoted repeatedly, offer, and carry out heat and mass between the heating tube 21, constantly remove moisture, and move to discharge end by means of the gradient of drying machine, discharge from the discharge gate 13 of drying machine afterbody.Be provided with collet 37 at drying machine cylindrical shell discharge end, can regulate the height of collet, satisfy the dry needs when conditions such as inlet amount, steam pressure change, guarantee product quality by collet governor motion 38.Because of material leans on the part moisture percentage of feed end into higher at drying machine, more sticking wall so be provided with knocker 3 on the outer wall of preceding 1/4～1/3 cylindrical shell 5 of close feed end, knocks barrel with the rotation of cylindrical shell 5, can alleviate the wall sticking phenomenon of material effectively.Charging sealing 2 and discharging sealing 36 adopt packing seal to add the version of sealing gland, have guaranteed sealing effectiveness effectively.Because of the contained solvent of PTA is a water, basic non-corrosiveness so all select the 304L material for use with the material contact portion in the PTA drying machine, reduces the manufacturing cost of equipment; And the contained solvent of CTA is an acetic acid, has stronger corrosivity, so all select the 316L material for use with the material contact portion in the CTA drying machine, has higher corrosion resistance.
As shown in Figure 1, dry required heat is provided by saturated/superheated steam, feeds steam chests 7 by the steam inlet 11 of the vapour axle 10 of drying machine afterbody, enters equably then in each heating tube 21.In dry run, the condensed water that the steam release heat produces flow in the steam chest 7 of drying machine under the effect of drying machine gradient, through drainpipe 14, vapour axle 10, discharges drying machine by condensation-water drain 12.The drainpipe 14 of drying machine is located at outside the steam chest 7, neither influences the material movement in the drying machine, makes things convenient for again drainpipe 14 is overhauled, and in time finds fault, the convenient repairing or replacing.
Not condensing inert gas in the heating tube 21 drains in the ring main 8 through condensing tubule not, and is regularly emitted by air bleeding valve.Condensing ring main 8 can not be located at the head or the afterbody of drying machine as required.
Take humid gas and enter, in drying machine,, carry the moisture that drying removes, discharge outside the drying machine at the charging aperture 1 through charger 18 under the effect of blower fan or gravity-flow ventilation with the operation of material adverse current by the humid gas air inlet 9 of taking at discharging cover top.
As shown in Figure 3, vapour axle 10 left ends are provided with adpting flange 23, and the right-hand member inner face is provided with closure plate 25, and the side is provided with a delivery port 26.Be provided with 2-4 sheet spiral stator 24 in the jacket pipe as hydrophobic channel 22 in the vapour axle 10, strengthened hydrophobic ability greatly, guaranteed drying effect.
As shown in Figure 4, charger 18 adopts ribbons 29 forms, and motor 27 is connected with axle 30 in the charger 18 by shaft coupling, and the passage of humid gas discharge drying machine is taken in the central passage conduct.Keep at a certain distance away on the axle 30 of charger 18 and be provided with support bar 28, support bar 28 other ends are ribbon 29 fixedly, in material conveying process, can certain fragmentation be arranged to material, prevent that material from luming in tube, and the specific area of material is increased, strengthened the heat exchange effect.
Claims (10)
1. a p-phthalic acid (PTA) steam rotary dryer, comprise cylindrical shell, flight, heating tube, support pipe support, bull gear, rolling ring, steam chest, vapour axle, steam inlet, condensation-water drain, discharge gate, drainpipe, catch wheel device, transmission device and riding wheel apparatus, barrel front end is connected with charger, cylindrical shell is realized supporting by riding wheel apparatus and rolling ring, the pinion of transmission device is meshed with bull gear on the cylindrical shell, it is characterized in that: cylindrical shell is installed with the high discharge end low dip of feed end; Be provided with the heating tube through whole cylindrical shell in cylindrical shell, heating tube supports by supporting pipe support, and communicates with steam chest, and steam chest communicates with the vapour axle of cylindrical shell afterbody, and the vapour axle is provided with steam inlet, is welded with the flight of some on the barrel between the heating tube; Being provided with knocker, be provided with drainpipe in cylindrical shell steam chest outside near on the outer wall of feed end cylindrical shell.
2. according to the described p-phthalic acid of claim 1 (PTA) steam rotary dryer, it is characterized in that: the gradient that described cylindrical shell tilts to install is 1.5: 100 to 2.0: 100.
3. according to the described p-phthalic acid of claim 1 (PTA) steam rotary dryer, it is characterized in that: described heating tube is lined up the 3-5 circle in concentrically ringed mode, and every circle pipe number can equate, also can not wait.
4. according to the described p-phthalic acid of claim 1 (PTA) steam rotary dryer, it is characterized in that: described transmission device comprises can be by the power that manual clutch the switches two cover transmission systems different with rotating speed.
5. according to the described p-phthalic acid of claim 1 (PTA) steam rotary dryer, it is characterized in that: be equipped with a not condensing tubule in the described every heating tube, the condensing tubule is not connected with condensing ring main not, and the condensing ring main is not provided with air bleeding valve; The condensing ring main is not located at the head or the afterbody of drying machine.
6. according to the described p-phthalic acid of claim 1 (PTA) steam rotary dryer, it is characterized in that: described steam chest is the cake type.
7. according to the described p-phthalic acid of claim 1 (PTA) steam rotary dryer, it is characterized in that: be provided with 2-4 sheet spiral stator in the jacket pipe as hydrophobic channel in the described vapour axle.
8. according to the described p-phthalic acid of claim 1 (PTA) steam rotary dryer, it is characterized in that: described charger adopts the ribbon form, central passage is discharged the passage of drying machine as taking humid gas, is provided with support bar at a certain distance between the axle of charger and the ribbon.
9. according to the described p-phthalic acid of claim 1 (PTA) steam rotary dryer, it is characterized in that: be provided with the discharging cover at drying machine cylindrical shell afterbody, discharging cover top is provided with air inlet; The cylindrical shell discharge end is provided with collet, can regulate the height of collet by the collet governor motion.
10. according to the described p-phthalic acid of claim 1 (PTA) steam rotary dryer, it is characterized in that: the charging and discharging sealing adopts packing seal to add the version of sealing gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100701685A CN100491876C (en) | 2006-11-20 | 2006-11-20 | Revolving drier of precise terephthalic acid (PTA)steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100701685A CN100491876C (en) | 2006-11-20 | 2006-11-20 | Revolving drier of precise terephthalic acid (PTA)steam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1959318A true CN1959318A (en) | 2007-05-09 |
| CN100491876C CN100491876C (en) | 2009-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100701685A Active CN100491876C (en) | 2006-11-20 | 2006-11-20 | Revolving drier of precise terephthalic acid (PTA)steam |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793460A (en) * | 2010-02-26 | 2010-08-04 | 杨正清 | Slag dryer |
| CN102393130A (en) * | 2011-11-26 | 2012-03-28 | 山东科院天力节能工程有限公司 | Auxiliary heating type steam rotary dryer |
| CN102393129A (en) * | 2011-11-26 | 2012-03-28 | 山东科院天力节能工程有限公司 | Abrasion-resistant steam rotary dryer |
| CN104266473A (en) * | 2014-09-11 | 2015-01-07 | 诸文伟 | Overturning type drum dryer |
| CN108613512A (en) * | 2018-04-29 | 2018-10-02 | 山东省科学院能源研究所 | A kind of rotary dryer and its control method of high fill-ratio and residual heat recovery |
| CN112361798A (en) * | 2020-11-05 | 2021-02-12 | 江苏鹏威重型设备有限公司 | Rotary drying and calcining machine using steam as heating source |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2396355Y (en) * | 1999-12-01 | 2000-09-13 | 中国成达化学工程公司 | Terephthalic acid dryer |
| CN1257146C (en) * | 2004-10-19 | 2006-05-24 | 浙江大学 | Process for producing terephthalic acid and device therefor |
| CN201014901Y (en) * | 2006-11-20 | 2008-01-30 | 山东天力干燥设备有限公司 | Purified terephthalic acid steam rotating dryer |
-
2006
- 2006-11-20 CN CNB2006100701685A patent/CN100491876C/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793460A (en) * | 2010-02-26 | 2010-08-04 | 杨正清 | Slag dryer |
| CN101793460B (en) * | 2010-02-26 | 2011-12-21 | 杨正清 | slag dryer |
| CN102393130A (en) * | 2011-11-26 | 2012-03-28 | 山东科院天力节能工程有限公司 | Auxiliary heating type steam rotary dryer |
| CN102393129A (en) * | 2011-11-26 | 2012-03-28 | 山东科院天力节能工程有限公司 | Abrasion-resistant steam rotary dryer |
| CN102393130B (en) * | 2011-11-26 | 2013-12-11 | 山东科院天力节能工程有限公司 | Auxiliary heating type steam rotary dryer |
| CN104266473A (en) * | 2014-09-11 | 2015-01-07 | 诸文伟 | Overturning type drum dryer |
| CN108613512A (en) * | 2018-04-29 | 2018-10-02 | 山东省科学院能源研究所 | A kind of rotary dryer and its control method of high fill-ratio and residual heat recovery |
| CN112361798A (en) * | 2020-11-05 | 2021-02-12 | 江苏鹏威重型设备有限公司 | Rotary drying and calcining machine using steam as heating source |
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| Publication number | Publication date |
|---|---|
| CN100491876C (en) | 2009-05-27 |
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Owner name: SHANDONG TIANLI DRYING CO., LTD. Free format text: FORMER NAME: TIANLI DRYING EQUIPMENT CO., LTD., SHANDONG |
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| CP03 | Change of name, title or address |
Address after: 250101, Shandong Province, Ji'nan hi tech Zone, No. 554 Feng Feng Road, environmental science and Technology Park, building 8, Feng Feng building, room 230 Patentee after: Shandong Tianli Drying Co., Ltd. Address before: 250014 Shandong Province, Lixia District of Ji'nan city ten Road East Shouke Hospital Road No. 19 Patentee before: Tianli Drying Equipment Co., Ltd., Shandong |