CN101876503A - Material concurrent flow drying device and process - Google Patents
Material concurrent flow drying device and process Download PDFInfo
- Publication number
- CN101876503A CN101876503A CN2009102500788A CN200910250078A CN101876503A CN 101876503 A CN101876503 A CN 101876503A CN 2009102500788 A CN2009102500788 A CN 2009102500788A CN 200910250078 A CN200910250078 A CN 200910250078A CN 101876503 A CN101876503 A CN 101876503A
- Authority
- CN
- China
- Prior art keywords
- thermal current
- deflector
- housing
- flow
- drying device
- Prior art date
- 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.)
- Granted
Links
Images
Abstract
The invention discloses a material concurrent flow drying device and a process, which can be widely applied in the fields of chemical industry, coals, building materials, metallurgy and the like. The drying device consists of a housing wrapped with an insulating layer, and a feed hopper, a discharge hopper, a hot air inlet, a hot air outlet, a flow-guide block or a flow-guide strip and a flow-guide plate, which are arranged on the housing. The process mainly comprises the steps that: a material to be dried is fed to the device to meet with the hot air fed from the hot air inlet at once for heat exchange, water evaporation and hot air temperature reduction in the area provided with the flow-guide block or the flow-guide strip and then continues performing the heat exchange at material falls formed by the flow-guide plate till the material achieves the drying standard, wherein the material and the hot air leave the system from the bottom of the system and the whole device is in a negative pressure state. Due to the adoption of concurrent flow drying, the device and the process have the characteristics of high output power and efficiency, less pollution, and low energy consumption and solve the problems of easy spontaneous combustion caused by burnt granules and high discharging temperature.
Description
Technical field
The present invention relates to a kind of drying equipment and technology of material, can be widely used in fields such as chemical industry, coal, building materials, metallurgy.
Background technology
Dry technology is divided into direct heating, indirect two classes on the mechanism of drying.And directly heating is divided into physical dryness and chemical modification two classes.
In the convection drying, at present mature technique is the rotary pipe type dry technology, but its energy consumption height, floor space are big, and because material contacts inhomogeneously with drying medium, usually can cause the problem of heat transfer.Because the restriction on the drying mechanism, the unit power output of such device are difficult to enlarge.Though adopt hot blast to improve the utilization ratio of heat energy greatly as the fluidized bed drying technology of drying medium, improved unit power output, but the energy consumption height, and the raw material granularity that enters drier is strict, otherwise can cause the problem of fluidisation control, limit the development of fluidized bed drying technology.
Contact drying mainly is to adopt low-pressure steam as thermal source, in fluid bed with the form indirect material of pipe laying.But the granularity of material has strict requirement equally, and the fluidisation energy consumption is not improved.
Processes such as other mechanical dehydration, hot pressing dehydration, HTHP dehydration, also very immature at present, be in laboratory stage.From drying medium, use to contain the high drying medium of oxygen, the situation in hot-spot issues the danger of being conigenous combustion easily.And use water vapour as drying medium, and need to overcome the gasification latent heat of water again, cause huge energy waste.
A kind of in the last few years vibrating mixed flow drying method has caused people's attention.This method is mainly material and sends into the vibrating mixed flow dryer system by the air-locked type batcher, and material carries out heat exchange and water evaporates with the thermal current that makes progress in the process that moves downward afterwards.Material drops on the vibration drying bed after sending into system, by the vibration of vibrated bed and the upwards effect unrestrained repeatedly fluidized drying of quilt down of mobile thermal current.The particle of upper bed falls into behind lower floor's bed further dry by thermal current again, is discharged by the air-locked type discharger until reaching qualified moisture again.This method has must advantage, but because the difficulty of the control of the goods fluid on the vibration drying plate is very big, and the material bed pressure drop of vibrated bed is big, and the material needed power of kicking up is very big, has brought very big energy consumption.In addition, because design principle, the air-flow that granule is made progress constantly lifts, in system the time of staying long, the problem of super-dry can not be well solved, and controls the improper potential safety hazard of bringing easily.And because this system adopts the mode of material and air-flow adverse current, material outlet place air-flow and material all are in maximum temperature, and as the danger that nature takes place, this has not just limited the temperature of dry gas stream in control, make dry effect be adversely affected.
Summary of the invention
At the problem that prior art exists, it is little to the purpose of this invention is to provide a kind of energy consumption, and the efficient height can be avoided granule super-dry and material outlet temperature too high concurrent flow drying device and process.
Technical scheme of the present invention is as follows:
A kind of material concurrent flow drying device, this device comprises housing, be wrapped in the outer sealed insulating layer of housing, be arranged on the deflector in the housing, thermal current air inlet and thermal current gas outlet, be provided with more than one feed hopper in described case top, be provided with dump skip at housing bottom, it is characterized in that: described thermal current air inlet is arranged in the upper lateral part of housing, the thermal current gas outlet is arranged in the side lower part of housing, arranges distributing baffle or flow guide bar at the internal upper part fork of described housing, and staggered downward-sloping deflector is installed in the middle and lower part of housing, three limits and the housing of every layer of deflector are fixed, and integral body is " Z " shape.
Above-mentioned material concurrent flow drying device, described deflector downward-sloping with angle horizontal plane be 25 °～70 °.Described dump skip is material envelope formula dump skip.
The present invention is based on said apparatus a kind of concurrent drying process of material is provided, comprise the steps:
1) with material to be dried in the feed hopper feeder at drying device top, under the effect of gravity, fall, enter the zone that is furnished with baffle or flow guide bar, simultaneously, thermal current meets in zone that is furnished with baffle or flow guide bar and material in the horizontal feeder of thermal current air inlet on device side top, material is rebounded in this zone repeatedly and collide, and with thermal current generation heat exchange, under thermal current drove, material was fallen on the ground floor deflector afterwards;
2) material glides at gravity effect lower edge deflector, leading edge at deflector forms waterfall, drop on the second layer deflector, carrying the thermal current of part small particles material secretly and walking around the downward serpentine locomotion of deflector, heat exchange takes place on material bed surface of deflector and material waterfall place;
3) by that analogy, with material waterfall place similar heat transfer process takes place all on the material bed surface of each layer deflector, after last waterfall heat exchange, fall into dump skip up to material and discharge drying device, thermal current is discharged drying device from the thermal current gas outlet under the effect of air-introduced machine, and make that integral body is negative pressure state in the device.
In the above-mentioned drying process method, described thermal current can adopt hot flue gas, and the downward speed of thermal current macroscopic view is 0.2m/s～5.6m/s, and temperature range is 100 ℃～300 ℃, and the oxygen content scope is 0%～13.4%.
The present invention compared with prior art has the following advantages and outstanding effect:
1. the baffle of housing internal upper part or flow guide bar have prolonged the time of staying of material at the housing internal upper part, and violent in this regional heat exchange, hot stream temperature significantly descends, and moisture evaporates in a large number in the material.
2. deflector is fixed, and need not consumed energy, has significantly reduced the energy consumption of device.
3. adopt concurrent, the hot stream temperature highest point is the temperature of charge lowest part just, though and dump skip place temperature of charge is the highest, the temperature of air-flow is minimum herein, housing inner bottom part material and thermal current all can maintain 78 ℃～100 ℃, have therefore solved the too high problem of drop temperature.
4. following current also makes granule reduce in the intrasystem time of staying, has solved short grained super-dry problem, has prevented the tendency of intrasystem spontaneous combustion and blast effectively.
5. because native system adopts the structure of closed negative pressure, the gas in the device can't leak, and has reduced the pollution to environment effectively.
In sum, the present invention is a kind of material drying device preferably and process, uses native system that water content is reduced more than 15%, has good drying effect, the drying and dehydrating of especially suitable coal industry.
Description of drawings
Fig. 1 is the structural representation of concurrent flow drying device provided by the invention.
Fig. 2 is an A-A schematic cross-section among Fig. 1.
Fig. 3 is a B-B schematic cross-section among Fig. 1.
Among the figure: the 1-housing; The 2-sealed insulating layer; 3-thermal current air inlet; The 4-feed hopper; 5-baffle or flow guide bar; The 6-deflector; 7-deflector support; 8-thermal current gas outlet; The 9-dump skip; 10-material flow course; 11-thermal current course.
The specific embodiment
Below in conjunction with accompanying drawing concrete structure of the present invention, the course of work and the specific embodiment are further described.Fig. 1 is the structural representation of whole concurrent flow drying device.This device contains housing 1, be wrapped in the outer sealed insulating layer 2 of housing, be arranged on deflector 6 and deflector support 7 in the housing, thermal current air inlet 3 and thermal current gas outlet 8, be provided with more than one feed hopper 4 in described case top, be provided with dump skip 9 at housing bottom, dump skip 9 is material envelope formula dump skip.Thermal current air inlet 3 is arranged in the upper lateral part of housing 1, thermal current gas outlet 8 is arranged in the side lower part of housing 1, the internal upper part fork of housing 1 is arranged distributing baffle or flow guide bar 5, the staggered downward-sloping deflector of one deck at least 6 is installed in the middle and lower part of housing 1, three limits of every layer of deflector 6 and housing 1 are fixing, and integral body is " Z " shape.Deflector 6 downward-sloping with angle horizontal plane be 25～70 °.
Fig. 2 is the A-A schematic cross-section, shows among the figure that baffle or flow guide bar 5 forks are arranged to put, and two ends are fixed with housing 1.
Fig. 3 is the B-B schematic cross-section, shows among the figure that deflector 6 three limits and housing 1 are fixing.
The course of work of the present invention is as follows:
Material enters into device from feed hopper 4, falls under the effect of gravity, enters the zone that is furnished with baffle or flow guide bar 5.Meanwhile, temperature is that 100 ℃～300 ℃, the thermal current of oxygen content 0%～13.4% are sent into system from the thermal current air inlet 3 on system side top, meets with material, and strong heat transfer process takes place.Material is under the acting in conjunction of gravity and thermal current, and material bounce-back is repeatedly collided in this zone, and the time of staying prolongs, and moisture explosive vaporization, the temperature of thermal current also descend rapidly.Under the acting in conjunction of gravity and thermal current, material drops on the ground floor deflector 6.Under the effect of gravity and thermal current, the material on the deflector 6 slowly glides, and falls from the leading edge of deflector 6.Like this, between ground floor and second layer deflector 6, form material waterfall.Thermal current is walked around deflector 6 downward serpentine locomotions, with the material bed surface that is deposited on the deflector heat exchange takes place, and heat exchange also takes place at material waterfall place.By that analogy, material has formed material waterfall between every two-layer deflector 6, on every layer of deflector 6 material bed surfaces and material waterfall place similar heat transfer process takes place all.Up to material and air-flow after in the end last waterfall heat exchange takes place for 6 times one deck deflector, material is by dump skip 9 dischargers, air-flow under the effect of air-introduced machine by thermal current gas outlet 8 carrying devices.Exerting oneself of blower fan of control makes system in its entirety be in negative pressure.The moving line of material is seen among Fig. 1 shown in 10 on the whole, and the air motion route is seen among Fig. 1 shown in 11 on the whole.Downward speed is 0.2m/s～3.5m/s on the air-flow macroscopic view.
Use concurrent flow drying device of the present invention and process, the efficient high output is big.The baffle of housing internal upper part or flow guide bar have prolonged the time of staying of material at the housing internal upper part, and violent in this regional heat exchange, hot stream temperature significantly descends, and moisture evaporates in a large number in the material.Deflector is fixed, and need not consumed energy, has significantly reduced the energy consumption of device.Adopt concurrent, the hot stream temperature highest point is the temperature of charge lowest part just, though and dump skip place temperature of charge is the highest, the temperature of air-flow is minimum herein, housing inner bottom part material and thermal current all can maintain 78 ℃～100 ℃, have therefore solved the too high problem of drop temperature.Following current also makes granule reduce in the intrasystem time of staying, has solved short grained super-dry problem, has prevented the tendency of intrasystem spontaneous combustion and blast effectively.Because native system adopts the structure of closed negative pressure, the gas in the device can't leak, and has reduced the pollution to environment effectively.In a word, the present invention is a kind of material drying device preferably and process, uses native system that water content is reduced more than 15%, has good drying effect, the drying and dehydrating of especially suitable coal industry.
As mentioned above, clearly described technical scheme of the present invention in detail.For exemplifying embodiment of the present invention, under the situation of the spirit and scope of the present invention that do not deviate from claims definition of the present invention, can be in refinement of details place and modification.In addition, exemplifying embodiment should not thought the concrete restriction to protection domain of the present invention only for the description technique scheme.
Claims (6)
1. material concurrent flow drying device, contain housing (1), be wrapped in the outer sealed insulating layer (2) of housing, be arranged on the deflector (6) in the housing, thermal current air inlet (3) and thermal current gas outlet (8), be provided with more than one feed hopper (4) in described case top, be provided with dump skip (9) at housing bottom, it is characterized in that: described thermal current air inlet is arranged in the upper lateral part of housing, the thermal current gas outlet is arranged in the side lower part of housing, internal upper part fork at described housing is arranged distributing baffle or flow guide bar (5), the staggered downward-sloping deflector of one deck at least is installed in the middle and lower part of housing, three limits and the housing of every layer of deflector are fixed, and integral body is " Z " shape.
2. according to the described a kind of material concurrent flow drying device of claim 1, it is characterized in that: described every layer of deflector downward-sloping with angle horizontal plane be 25～70 °.
3. according to claim 1 or 2 described a kind of material concurrent flow drying device, it is characterized in that: described dump skip is material envelope formula dump skip.
4. adopt the concurrent drying process of a kind of material of device according to claim 1, it is characterized in that this method comprises the steps:
1) with material to be dried in the feed hopper feeder at drying device top, under the effect of gravity, fall, enter the zone that is furnished with baffle or flow guide bar, simultaneously, thermal current meets in zone that is furnished with baffle or flow guide bar and material in the thermal current air inlet feeder on device side top, material is rebounded in this zone repeatedly and collide, and with thermal current generation heat exchange, under thermal current drove, material was fallen on the ground floor deflector afterwards;
2) material glides at gravity effect lower edge deflector, leading edge at deflector forms waterfall, drop on the second layer deflector, carrying the thermal current of part small particles material secretly and walking around the downward serpentine locomotion of deflector, heat exchange takes place on material bed surface of deflector and material waterfall place;
3) by that analogy, with material waterfall place similar heat transfer process takes place all on the material bed surface of each layer deflector, after last waterfall heat exchange, fall into dump skip up to material and discharge drying device, thermal current is discharged drying device from the thermal current gas outlet under the effect of air-introduced machine, and make that integral body is negative pressure state in the device.
5. according to the concurrent drying process of the described a kind of material of claim 4, it is characterized in that: the downward speed of described thermal current macroscopic view is 0.2m/s～5.6m/s.
6. according to the concurrent drying process of the described a kind of material of claim 4, it is characterized in that: described thermal current adopts hot flue gas, and flue-gas temperature is 100 ℃～300 ℃, and oxygen content is 0%～13.4%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102500788A CN101876503B (en) | 2009-12-03 | 2009-12-03 | Material concurrent flow drying device and process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102500788A CN101876503B (en) | 2009-12-03 | 2009-12-03 | Material concurrent flow drying device and process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101876503A true CN101876503A (en) | 2010-11-03 |
| CN101876503B CN101876503B (en) | 2012-05-02 |
Family
ID=43019120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102500788A Expired - Fee Related CN101876503B (en) | 2009-12-03 | 2009-12-03 | Material concurrent flow drying device and process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101876503B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221287A (en) * | 2011-04-26 | 2011-10-19 | 李家勇 | Energy-saving drying unit |
| CN102645092A (en) * | 2012-05-16 | 2012-08-22 | 江苏诚信制药有限公司 | Craft improving system for preparing oxiracetam |
| CN103393208A (en) * | 2013-07-25 | 2013-11-20 | 中国烟草总公司郑州烟草研究院 | Device for detecting movement characteristics of tobaccos in descending bed |
| CN103538813A (en) * | 2013-10-24 | 2014-01-29 | 长沙开元仪器股份有限公司 | Vibrating feeding device |
| CN105212246A (en) * | 2015-10-13 | 2016-01-06 | 石狮北记食品有限公司 | A kind of intelligent quick-frozen food processing equipment |
| CN106524679A (en) * | 2016-10-15 | 2017-03-22 | 荆门得道机械科技有限公司 | Industrial environment-friendly coal drying device |
| CN107238272A (en) * | 2017-07-25 | 2017-10-10 | 陈群 | A kind of paddy delays the implementation method that drop formula is dried |
| CN107843100A (en) * | 2017-10-26 | 2018-03-27 | 惠州市鸿卓网络科技有限公司 | A kind of three-dimensional warehouse for drying of deep processing of farm products easy to remove |
| CN108368444A (en) * | 2015-09-17 | 2018-08-03 | 欧姆尼斯热技术有限责任公司 | Combustible granules drying system |
| CN109289454A (en) * | 2018-11-30 | 2019-02-01 | 浙江高成绿能科技有限公司 | A kind of recyclable drying device for gas dry |
| CN111854335A (en) * | 2020-07-30 | 2020-10-30 | 李国安 | Floated powder drying-machine |
-
2009
- 2009-12-03 CN CN2009102500788A patent/CN101876503B/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221287A (en) * | 2011-04-26 | 2011-10-19 | 李家勇 | Energy-saving drying unit |
| CN102645092A (en) * | 2012-05-16 | 2012-08-22 | 江苏诚信制药有限公司 | Craft improving system for preparing oxiracetam |
| CN103393208A (en) * | 2013-07-25 | 2013-11-20 | 中国烟草总公司郑州烟草研究院 | Device for detecting movement characteristics of tobaccos in descending bed |
| CN103538813B (en) * | 2013-10-24 | 2016-10-05 | 长沙开元仪器股份有限公司 | A kind of vibrating material-distributing device |
| CN103538813A (en) * | 2013-10-24 | 2014-01-29 | 长沙开元仪器股份有限公司 | Vibrating feeding device |
| CN108368444A (en) * | 2015-09-17 | 2018-08-03 | 欧姆尼斯热技术有限责任公司 | Combustible granules drying system |
| CN105212246A (en) * | 2015-10-13 | 2016-01-06 | 石狮北记食品有限公司 | A kind of intelligent quick-frozen food processing equipment |
| CN106524679A (en) * | 2016-10-15 | 2017-03-22 | 荆门得道机械科技有限公司 | Industrial environment-friendly coal drying device |
| CN106524679B (en) * | 2016-10-15 | 2019-05-17 | 菏泽富海能源发展有限公司 | A kind of industrial environment protecting type coal drying equipment |
| CN107238272A (en) * | 2017-07-25 | 2017-10-10 | 陈群 | A kind of paddy delays the implementation method that drop formula is dried |
| CN107843100A (en) * | 2017-10-26 | 2018-03-27 | 惠州市鸿卓网络科技有限公司 | A kind of three-dimensional warehouse for drying of deep processing of farm products easy to remove |
| CN109289454A (en) * | 2018-11-30 | 2019-02-01 | 浙江高成绿能科技有限公司 | A kind of recyclable drying device for gas dry |
| CN109289454B (en) * | 2018-11-30 | 2023-11-28 | 浙江高成绿能科技有限公司 | Circulated drying device for gas drying |
| CN111854335A (en) * | 2020-07-30 | 2020-10-30 | 李国安 | Floated powder drying-machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101876503B (en) | 2012-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101876503B (en) | Material concurrent flow drying device and process | |
| CN201555433U (en) | Concurrent flow drying device for materials | |
| CN201593905U (en) | Mixed flow vibration drying device | |
| CN202613898U (en) | Drying device using rotary crushing and spouting fluidization | |
| CN201155908Y (en) | Interior heat type multilevel fluid drying apparatus | |
| CN210689134U (en) | Pulverized coal drying system | |
| CN101876501B (en) | Material concurrent flow and jigging drying device and process | |
| CN101974344B (en) | Drying process for humidifying coals by using coke oven flue gas and device | |
| CN103073168A (en) | Flue gas-sludge indirect contact drying device and method | |
| CN102589268A (en) | Flue gas waste heat recycling method and flue gas waste heat recycling device of biomass furnace | |
| CN101983942A (en) | Drying and quality improvement apparatus for slime and sludge and technology thereof | |
| CN202610084U (en) | Pulse combustion inner heated fluidized bed sludge-drying system | |
| CN204421572U (en) | A kind of rotary drying machine | |
| CN201555432U (en) | Concurrent-flow and sieving drying device for materials | |
| CN102997634B (en) | Moving bed brown coal drying method and device | |
| CN205351944U (en) | A drying device that is used for high water capacity powder living beings | |
| CN201016551Y (en) | Jiutian vertical drying machine | |
| CN203315916U (en) | Water film-separator-Venturi type desulfurizing deduster | |
| CN202675799U (en) | Semi-closed self-inert type vibration fluidized drying system | |
| CN106287686B (en) | Biomass recirculating fluidized bed boiler slag-draining device | |
| CN101169305A (en) | Multiple-stage combination tower type drying apparatus and drying process | |
| CN2878374Y (en) | Device for drying sludge by flue gas residual heat | |
| CN208886757U (en) | A kind of coal slime processing system | |
| CN101445739A (en) | Method for drying lignite through horizontal moving bed | |
| CN202024579U (en) | Explosion proof type graded anti-blocking solid drying system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120502 Termination date: 20151203 |
|
| EXPY | Termination of patent right or utility model |