CN105363230B - Spray-drying installation for dry catalyst - Google Patents
Spray-drying installation for dry catalyst Download PDFInfo
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- CN105363230B CN105363230B CN201510842129.1A CN201510842129A CN105363230B CN 105363230 B CN105363230 B CN 105363230B CN 201510842129 A CN201510842129 A CN 201510842129A CN 105363230 B CN105363230 B CN 105363230B
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- drying tower
- drying
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Abstract
The present invention relates to a kind of spray-drying installation for dry catalyst, centrifugal drying tower including vertical upper cylinder Yu lower circular cone composite construction, spiral case hot-air distributor and frequency conversion centrifugal atomizer are provided with the middle part of tower top, material-storage jar is connected to the charging aperture of frequency conversion centrifugal atomizer by dehvery pump, heater connects the air inlet of spiral case hot-air distributor by hot air duct, cooling blanking device is arranged on the bottom of drying tower and connected with drying tower discharging opening, cloth envelop collector room is provided with the tower internal upper part side wall of drying tower, dismountable cloth envelop collector is provided with cloth envelop collector room；Multiple pneumatic hammers are installed on the lateral wall of drying tower, pneumatic hammer connects electric air pump by appendix；Intelligent control box connects frequency conversion centrifugal atomizer, dehvery pump, heater, cooling blanking device and electric air pump by wire, the running parameter of whole drying device is accurately controlled, and the phenomenon that wall is glued in drying tower can be prevented effectively from, improve the quality of catalyst.
Description
Technical field
The utility model is related to catalyst preparation technical field, more particularly to a kind of catalyst is dried and the spraying of granulation is done
Dry device.
Background technology
Catalyst has irreplaceable status in modern chemical industry, there are about 80% chemical reaction and catalyst
In the presence of relevant.Existing catalyst is generally nanoscale or micron-sized granular powder, Presence of an interface tension force between particle and solution,
Particle aggregation is easily produced, therefore during solution reaction prepares catalyst powder, drying is extremely critical process.Spray
It is most common a kind of dry technology for liquid being dried to powder-product in chemical engineering industry that mist, which is dried, and its operation principle is：With
Material is sprayed into droplet dispersion in hot-air by the method for spraying, and material is mutual in the mode of cocurrent, adverse current or mixed flow with hot-air
It is in contact, moisture is evaporated rapidly, reaches dry purpose.Using this drying means, concentration, filtering can be saved, crushed
Operated Deng unit, and drying time short (general drying time is 5~30s), the active ingredient to dried material destroy few.But
It is that existing catalyst drying device occurs adhering to drying tower by dry material during being spray-dried, often
Phenomenon on inwall, because viscous wall material is relatively difficult to be taken out of drying tower in time, so as to cause adhesion material to burn or go bad shadow
Ring the quality of catalyst powder；In order to improve the quality of product, the viscous wall material in drying tower is removed, it has to which midway stops dry
Dry, it is long in turn result in the operation cycle, and production efficiency is low, continuous operation is difficult.
The content of the invention
There is provided a kind of spray for dry catalyst exactly for technical problem present in prior art for the utility model
Mist drying device, the device overall construction design is ingenious, and automaticity is high, can be prevented effectively from dry catalyst in drying tower
Occur the phenomenon of viscous wall, improve the quality of finished catalyst.
To achieve these goals, the technical solution adopted in the utility model is, a kind of spraying for dry catalyst
Under drying device, including the centrifugal drying tower of vertical upper cylinder and lower circular cone composite construction, feeding device, heater, cooling
Glassware, dedusting emptier and intelligent control box, the dry inner wall of tower is provided with one layer of hydrophobic layer, in the tower top of drying tower
Portion is provided with spiral case hot-air distributor and frequency conversion centrifugal atomizer, and the upper wind deflector of the spiral case hot-air distributor and lower wind deflector are equal
It is arranged in cone, the angle of the upper wind deflector and cone axis is 25~30 °, the angle of lower wind deflector and cone axis is
0 °, and the quantity of upper wind deflector is twice of lower wind deflector quantity, so enabling to hot blast to enter can be uniform in drying tower
It is distributed and ensures that hot blast rotates, so as to extend the time of contact between hot blast and atomization feed liquid, promotes hot blast to expect with atomization
Heat and mass between liquid is completed in Best Times, is prevented effectively from the phenomenon generation that wet stock glues wall.The frequency conversion centrifugal atomizing
The cone of the nozzle of device through spiral case hot-air distributor is extended to inside drying tower, provided with fixed on frequency conversion centrifugal atomizer base
Position pin makes center line of the axis of atomizer nozzle all the time with drying tower coincide；The material-storage jar of the feeding device passes through conveying
Pump is connected to the charging aperture of frequency conversion centrifugal atomizer, and the dehvery pump uses membrane pump, between the valve seat and valve ball of the membrane pump
Using ball face sealing, good seal performance, and the uniformity into material in frequency conversion centrifugal atomizer is effectively ensured, so as to improve
Charging rate and charging continuity.And filter is provided with the feeding pipe between dehvery pump and frequency conversion centrifugal atomizer, use
Crude fibre and bulky grain debris in filter material, to prevent the distributing device and atomizing disk of feed blocking frequency conversion centrifugal atomizer
Passage, so that material shape is into droplet, moment for leaving atomizing disk just forms uniform atomization feed liquid, improves catalyst powder
Grain or granulation uniformity.The heater connects the air inlet of spiral case hot-air distributor by hot air duct, under the cooling
Glassware is arranged on the bottom of drying tower and connected with drying tower discharging opening, and the dedusting that the dedusting emptier includes being connected is net
Change device and exhaust fan, the dust removing purifier connects the evacuation port of drying tower；Cloth is provided with the tower internal upper part side wall of drying tower
Bag type filter room, drying tower evacuation port is opened on the side wall of cloth envelop collector room, and the bottom of cloth envelop collector room is open, in cloth
Dismountable cloth envelop collector is uniformly provided with bag type filter room；Multiple pneumatic hammers, institute are installed on the lateral wall of the drying tower
State pneumatic hammer and electric air pump is connected by appendix；The intelligent control box by wire connect frequency conversion centrifugal atomizer, dehvery pump,
Heater, cooling blanking device, exhaust fan and electric air pump, are accurately controlled the running parameter of whole drying device.
The ingenious practicality of whole Technical Design, controls and manages convenient for production, can be prevented effectively from the phenomenon that material glues wall, warp
Dried catalyst powder purity is high and with good laxity and dissolubility.
As a kind of improvement of the present utility model, the front end of the heater is provided with air cleaner, and air is through institute
State to deliver to by pressure fan after air cleaner filtering and form hot blast in electric heater after heating, hot blast is distributed by spiral case hot blast
The atomization feed liquid that helically state enters in drying tower and with being sprayed from the nozzle of frequency conversion centrifugal atomizer after device distribution is carried out
Heat is exchanged with matter.The covering radius of hot blast is larger and distribution is more uniform, substantially effectively can be combined with atomization feed liquid, rapidly
The moisture being atomized in feed liquid is evaporated.
As a kind of improvement of the present utility model, the frequency conversion centrifugal atomizer uses associated mode high speed centrifugal atomization device,
Variable-frequency motor on atomizer is directly connected to by shaft coupling and the rotary shaft on atomizing disk top, so as to be prevented effectively from atomizing disk
The phenomenon deflected in rotary course, so as to ensure that the nozzle of atomizing disk bottom does not shift, be prevented effectively from because
Nozzle inclination and the local material wall sticking phenomenon produced.And shaft coupling is fixedly mounted on atomizing disk top, mist by bearing block
Change influence substantially not vibrated in the rotating shaft rotation process that spirals, further avoid the occurrence of the phenomenon that material glues wall.
As a kind of improvement of the present utility model, the nozzle of the frequency conversion centrifugal atomizer uses thyrite system
Into, there is high temperature resistant due to the material, there is good corrosion resistance and good chemical stability to acid-alkali salt,
So that nozzle operation has relatively low wear rate and good chemical property in drying tower environment, so as to improve frequency conversion centrifugation
The service life of atomizer, has also been effectively ensured the uniformity coefficient of atomization feed liquid.
Relative to prior art, advantage of the present utility model is as follows, 1) overall construction design of this drying device is ingenious, tears open
Unload assembling convenient maintenance and replacement, cost is relatively low and rate of drying is fast, dry gained finished catalyst have good shatter value and
Granulation uniformity；2) device is easy to operate, only need to be pre-set in intelligent control box drying temperature, feed rate,
The related Drying Technology Parameter such as discharging rate, whole device enters the state automatically continuously worked, automaticity after start
Height, whole drying process carries out full-automatic centralized Control by intelligent control box, and control and management are convenient, effectively reduce operator
The labor intensity of member；3) cloth envelop collector room is set in centrifugal drying tower, effectively prevent and be arranged in the past outside drying tower
Influence of the rewinding dust arrester to dry gas stream in drying tower, so that it is guaranteed that atomization feed liquid dries abundant degree in tower, and
Material wall sticking phenomenon is avoided to occur；Simultaneously in cloth envelop collector room the cloth envelop collector of setting it is recyclable be entrained by the flow of air it is fine
Powder, and the powder after reclaiming falls after being fallen to the cone bottom discharge mouthful of drying tower again due to the effect of self gravitation and dried
Under powder be discharged together outside tower, waste gas after evacuation port removing dust clarifier dust separation by exhaust fan by being discharged into greatly
Gas；4) as a result of air-supply uniformity good spiral case hot-air distributor and the good frequency conversion centrifugal atomizer of atomizing effect, plus
Outer wall on pneumatic hammer setting, using this drying device carry out catalyst drying process when hardly occur material glue wall show
As effectively increasing the quality of catalyst drying and the continuity of drying process, increasing while substantially increasing drying efficiency
The economic benefit of enterprise is added.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model.
The structural representation for the spiral case hot-air distributor that Fig. 2 is used by the utility model.
The structural representation for the frequency conversion centrifugal atomizer that Fig. 3 is used by the utility model.
In figure：1- centrifugal drying towers, 2- frequency conversion centrifugal atomizers, 3- spiral case hot-air distributors, 4- material-storage jars, 5- conveyings
Pump, 6- filters, 7- cooling blanking devices, 8- pressure fan, 9- air cleaners, 10- electric heaters, 11- cloth envelop collectors room,
12- cloth envelop collectors, 13- dust removing purifiers, 14- exhaust fans, 15- intelligent control box, 16- pneumatic hammers, 17- electric air pumps, 18-
Wind deflector under air inlet, the upper wind deflectors of 19-, 20- cones, 21-, 22- conical shells, 23- air outlets, 24- variable-frequency motors, 25- shaft couplings
Device, 26- bearing blocks, 27- rotary shafts, 28- atomizing disks.
Embodiment
In order to deepen, to understanding and cognition of the present utility model, the utility model to be further described below in conjunction with the accompanying drawings
And introduction.
Embodiment 1：Such as Fig. 1-Fig. 3, a kind of spray-drying installation for dry catalyst, including vertical upper cylinder and
Centrifugal drying tower 1, feeding device, heater, cooling blanking device 7, dedusting emptier and the intelligence of lower circular cone composite construction
Control cabinet 15, the inwall of drying tower 1 is distributed provided with one layer of hydrophobic layer in the middle part of the tower top of drying tower 1 provided with spiral case hot blast
Device 3 and frequency conversion centrifugal atomizer 2, the upper wind deflector 19 of the spiral case hot-air distributor 3 and lower wind deflector 21 are arranged at cone
On 20, the angle of the upper wind deflector 19 and the axis of cone 20 is 25~30 °, and the angle of lower wind deflector 21 and the axis of cone 20 is
0 °, and the quantity of upper wind deflector 19 is twice of the lower quantity of wind deflector 21, so enabling to hot blast to enter can in drying tower 1
It is uniformly distributed and ensures that hot blast rotates, so as to extend the time of contact between hot blast and atomization feed liquid, promotes hot blast and mist
Heat and mass between material liquid is completed in Best Times, is prevented effectively from the phenomenon generation that wet stock glues wall.The frequency conversion centrifugation
The cone 20 of the nozzle of atomizer 2 through spiral case hot-air distributor 3 is extended to inside drying tower 1, at the bottom of frequency conversion centrifugal atomizer 2
Seat makes center line of the axis of atomizer nozzle all the time with drying tower 1 coincide provided with alignment pin；The storage of the feeding device
Batch can 4 is connected to the charging aperture of frequency conversion centrifugal atomizer 2 by dehvery pump 5, between dehvery pump 5 and frequency conversion centrifugal atomizer 2
Feeding pipe be provided with filter 6, for the crude fibre in filter material and bulky grain debris, to prevent feed blocking frequency conversion
The distributing device and the passage of atomizing disk 28 of centrifugal atomizer 2, so that material shape leaves the moment of atomizing disk 28 just into droplet
Uniform atomization feed liquid is formed, catalyst powder or granulation uniformity is improved.The dehvery pump 5 uses membrane pump, the membrane pump
Valve seat and valve ball between use ball face sealing, good seal performance, and the material into frequency conversion centrifugal atomizer 2 has been effectively ensured
Uniformity so that improve charging rate and charging continuity.The heater connects spiral case hot blast point by hot air duct
The air inlet 18 of orchestration 3, the cooling blanking device 7 is arranged on the bottom of drying tower 1 and connected with the discharging opening of drying tower 1, described
Dedusting emptier includes the dust removing purifier 13 and exhaust fan 14 being connected, and the dust removing purifier 13 connects drying tower 1
Evacuation port；Cloth envelop collector room 11 is provided with the tower internal upper part side wall of drying tower 1, the evacuation port of drying tower 1 is opened in cloth bag mistake
On the side wall of filter room 11, the bottom of cloth envelop collector room 11 is open, is uniformly provided with cloth envelop collector room 11 dismountable
Cloth envelop collector 12；Multiple pneumatic hammers 16 are installed, the pneumatic hammer 16 connects electricity by appendix on the lateral wall of the drying tower 1
Take offence pump 17；The intelligent control box 15 is connected under frequency conversion centrifugal atomizer 2, dehvery pump 5, heater, cooling by wire
Glassware 7, exhaust fan 14 and electric air pump 17, are accurately controlled the running parameter of whole drying device.The whole skill
The ingenious practicality of art conceptual design, controls and manages convenient for production, can be prevented effectively from the phenomenon that material glues wall, urging after drying
Agent powder purity is high and with good laxity and dissolubility.
Embodiment 2：Such as Fig. 1, as a kind of improvement of the present utility model, the front end of the heater is provided with air mistake
Filter 96, air is delivered in electric heater 10 by pressure fan 8 after being filtered through the air cleaner 96 and forms hot blast after heating,
Hot blast by spiral case hot-air distributor 3 distribution after helically state enter drying tower 1 in and with the spray from frequency conversion centrifugal atomizer 2
The atomization feed liquid progress heat sprayed in mouth is exchanged with matter.The covering radius of hot blast is larger and distribution is more uniform, can fully have
Effect ground is combined with atomization feed liquid, is rapidly evaporated the moisture being atomized in feed liquid.Remaining structure and advantage and the complete phase of embodiment 1
Together.
Embodiment 3：Such as Fig. 2, as a kind of improvement of the present utility model, remaining structure and advantage and the complete phase of embodiment 1
Together.
Embodiment 4：Such as Fig. 3, as a kind of improvement of the present utility model, the frequency conversion centrifugal atomizer 2 uses associated mode
Variable-frequency motor 24 on high speed centrifugal atomization device, atomizer is directly connected by shaft coupling 25 and the rotary shaft 27 on the top of atomizing disk 28
Connect, so as to be prevented effectively from the phenomenon that atomizing disk 28 deflects in rotary course, so as to ensure the bottom of atomizing disk 28
Nozzle do not shift, be prevented effectively from the local material wall sticking phenomenon produced by nozzle inclination.And shaft coupling 25 passes through
Bearing block 26 is fixedly mounted on influence substantially not vibrated in the top of atomizing disk 28, the rotation process of 28 rotary shaft of atomizing disk 27,
Further avoid the occurrence of the phenomenon that material glues wall.Remaining structure and advantage are identical with embodiment 1.
Embodiment 5：As a kind of improvement of the present utility model, the nozzle of the frequency conversion centrifugal atomizer 2 uses carborundum
Ceramic material is made, and has high temperature resistant due to the material, has good corrosion resistance to acid-alkali salt and good chemistry is steady
Qualitative the advantages of so that nozzle operation has relatively low wear rate and good chemical property in the environment of drying tower 1, so as to carry
The high service life of frequency conversion centrifugal atomizer 2, has also been effectively ensured the uniformity coefficient of atomization feed liquid.Remaining structure and advantage with
Embodiment 1 is identical.
The utility model can also combine at least one in technical characteristic described in embodiment 2,3,4,5 with embodiment 1
Form new embodiment.
It should be noted that above-described embodiment, not for limiting protection domain of the present utility model, in above-mentioned technical side
Made equivalents or replacement each fall within the utility model scope of the claimed protection on the basis of case.
Claims (4)
1. a kind of spray-drying installation for dry catalyst, it is characterised in that：It is combined including vertical upper cylinder and lower circular cone
Centrifugal drying tower, feeding device, heater, cooling blanking device, dedusting emptier and the intelligent control box of structure, it is described dry
Dry inner wall of tower is provided with spiral case hot-air distributor and frequency conversion centrifugal atomizing provided with one layer of hydrophobic layer in the middle part of the tower top of drying tower
Device, the upper wind deflector of the spiral case hot-air distributor and lower wind deflector are arranged in cone, the upper wind deflector and cone axis
The angle of line is 25~30 °, and the angle of lower wind deflector and cone axis is 0 °, and the quantity of upper wind deflector is lower wind deflector quantity
Twice, the cone of the nozzle of the frequency conversion centrifugal atomizer through spiral case hot-air distributor is extended to inside drying tower, is being become
Frequency centrifugal atomizer base makes center line of the axis of atomizer nozzle all the time with drying tower coincide provided with alignment pin；It is described
The material-storage jar of feeding device is connected to the charging aperture of frequency conversion centrifugal atomizer by dehvery pump, in dehvery pump and frequency conversion centrifugal atomizing
Feeding pipe between device is provided with filter, and the dehvery pump uses membrane pump, adopted between the valve seat and valve ball of the membrane pump
With ball face sealing, the heater connects the air inlet of spiral case hot-air distributor, the cooling blanking device by hot air duct
Connect installed in the bottom of drying tower and with drying tower discharging opening, the dedusting emptier includes the dust removing purifier being connected
And exhaust fan, the evacuation port of the dust removing purifier connection drying tower；Cloth bag mistake is provided with the tower internal upper part side wall of drying tower
Filter room, drying tower evacuation port is opened on the side wall of cloth envelop collector room, and the bottom of cloth envelop collector room is open, in cloth bag mistake
Dismountable cloth envelop collector is uniformly provided with filter room；Multiple pneumatic hammers, the gas are installed on the lateral wall of the drying tower
Hammer connects electric air pump by appendix；The intelligent control box connects frequency conversion centrifugal atomizer, dehvery pump, heating by wire
Device, cooling blanking device, exhaust fan and electric air pump, are accurately controlled the running parameter of whole drying device.
2. it is used for the spray-drying installation of dry catalyst as claimed in claim 1, it is characterised in that the heater
Front end is provided with air cleaner, and air is delivered in electric heater after heating after being filtered through the air cleaner by pressure fan
Form hot blast, hot blast after the distribution of spiral case hot-air distributor helically state enter in drying tower and with from frequency conversion centrifugal atomizing
The atomization feed liquid progress heat sprayed in the nozzle of device is exchanged with matter.
3. it is used for the spray-drying installation of dry catalyst as claimed in claim 1, it is characterised in that the frequency conversion centrifuges mist
Changing device uses the variable-frequency motor on associated mode high speed centrifugal atomization device, atomizer to pass through shaft coupling and the rotary shaft on atomizing disk top
It is directly connected to, and shaft coupling is fixedly mounted on atomizing disk top by bearing block.
4. it is used for the spray-drying installation of dry catalyst as claimed in claim 3, it is characterised in that the frequency conversion centrifuges mist
The nozzle for changing device is made of thyrite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510842129.1A CN105363230B (en) | 2015-11-28 | 2015-11-28 | Spray-drying installation for dry catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510842129.1A CN105363230B (en) | 2015-11-28 | 2015-11-28 | Spray-drying installation for dry catalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105363230A CN105363230A (en) | 2016-03-02 |
| CN105363230B true CN105363230B (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510842129.1A Expired - Fee Related CN105363230B (en) | 2015-11-28 | 2015-11-28 | Spray-drying installation for dry catalyst |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109630557A (en) * | 2019-01-29 | 2019-04-16 | 莱克电气股份有限公司 | A kind of shaft coupling and mist generating device of achievable noise reduction |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1022186C2 (en) * | 2002-12-17 | 2004-06-18 | Carlisle Process Systems B V | Spray drying device. |
| CN201969369U (en) * | 2010-12-13 | 2011-09-14 | 林松 | Spray drying machine |
| CN203315761U (en) * | 2013-05-13 | 2013-12-04 | 佛山金葵子植物营养有限公司 | High-speed centrifuging and spraying drier |
| CN103752025A (en) * | 2014-01-17 | 2014-04-30 | 常州市金陵干燥设备有限公司 | Spray dryer |
| CN104399263B (en) * | 2014-11-29 | 2016-07-20 | 南京威安新材料科技有限公司 | A kind of solid catalyst atomization drying system being easy to clean |
| CN205164162U (en) * | 2015-11-28 | 2016-04-20 | 南京威安新材料科技有限公司 | A spray -drying device for dry catalyst |
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| CN105363230A (en) | 2016-03-02 |
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| CB03 | Change of inventor or designer information |
Inventor after: Xu Songrong Inventor after: Xu Zhuya Inventor after: Xu Cheng Inventor before: Wu Min Inventor before: Li Weijie Inventor before: Zeng Pingchuan Inventor before: Zhou Yucheng Inventor before: Yang Dai Inventor before: Zhang Zhongkun |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20170714 Address after: Da Ge road 224043 in Jiangsu province Yancheng City District Dagang Town No. 99 Applicant after: Yancheng City Qin Cheng Machinery Technology Co., Ltd. Address before: 210047 No. 606, Ning six road, Nanjing chemical industry park, Jiangsu, China Applicant before: Nanjing Weian New Material Science & Technology Co., Ltd. |
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Granted publication date: 20170825 Termination date: 20201128 |