CN2788104Y - Inner heating fluidized bed dryer dedicated for adipic acid - Google Patents
Inner heating fluidized bed dryer dedicated for adipic acid Download PDFInfo
- Publication number
- CN2788104Y CN2788104Y CN 200520083753 CN200520083753U CN2788104Y CN 2788104 Y CN2788104 Y CN 2788104Y CN 200520083753 CN200520083753 CN 200520083753 CN 200520083753 U CN200520083753 U CN 200520083753U CN 2788104 Y CN2788104 Y CN 2788104Y
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- bed body
- upper bed
- utility
- adipic acid
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Abstract
The utility model provides an inner heating fluidized bed dryer dedicated for adipic acid, which is composed of an upper bed body, a lower bed body and a fluidized section, wherein the fluidized section is arranged between the upper bed body and the lower bed body, and a steam coil pipe is arranged in the fluidized section; a feed port and an air outlet are arranged on the upper bed body, and an inlet and an air inlet are arranged on the lower bed body; an explosion proof port is also arranged above the upper bed body, and a thermal insulation serpentine coil pipe is arranged at the outer surface of the upper bed body; a gas balance pipeline is arranged between the upper bed body and a star-shaped discharging valve of the discharging port of the fluidized section; a plurality of built-in heat exchangers assembled with flow regulating valves are arranged in the fluidized section. When the utility model dries material with strong hydrophilicity and easy explosion, discharging operation is smooth and safe, the material can not bond on the inner surface of the bed body and the utility model has ideal drying effect.
Description
(1) technical field:
The utility model relates to fluidized bed drying equipment.
(2) background technology:
Fluid bed dryer is a big class of traditional drying equipment, is widely used in industries such as chemical industry, oil, feed, is applicable to material and thermosensitive type materials such as dry various graininess, sheet.The version of the fluid bed dryer that present domestic employing is more is the box fluid bed of rectangle, and the bottom is a perforated distributor, there is vertical baffle plate the air distribution plate top, fluid bed is divided into a plurality of cells, and every baffle plate can move up and down, to regulate the spacing of itself and air distribution plate.All should there be a gas tank bottom of each cell, the valve that air inlet is all arranged and can regulate air quantity on the next door of each gas tank mutually.
Wet stock is fallen by the charging aperture of top, and continuous charging is first indoor in drying machine, is moved to last chamber gradually by first Room.Dried material is drawn off by last chamber discharge port.In the middle of the process that material moves, solid particle is high speed under the effect of the hot blast that is blown up by following casing irregular mobile, and bed state at this moment just is in fluidization, and hot blast is contacted fully with material, reaches the purpose of drying and dewatering.
Internal heating fluidized bed drying machine is to be distributed with steam pipe coil according to certain clearance in its dryer section, and steam pipe coil is covered with whole fluidisation section, and inside is connected with high-temperature steam.Like this, steam pipe coil and material form indirect heat exchange, have strengthened the contact area of material and thermal source greatly, and steam pipe coil is the main thermal source of material dewatering, and just play the effect of taking away the steam that the material heat exchange comes out by the hot blast on the body of leaving the bed.In use there is following problem in internal heating fluidized bed drying machine:
For the such hydrophily of adipic acid during strong especially and dry materials blast easily, at the easy sizing of the inner surface of upper bed body, this be because the temperature of the inner surface of upper bed body under the external Temperature Influence of bed, temperature has been reduced to below 100 ℃, the easy dewfall of water vapour.When blasting, easily cause machine to ruin the accident that the people hinders.
In addition, because the discharging opening of fluid bed all is provided with the star discharge valve, if under the bad situation of the sealing effectiveness of star discharge valve, can form the phenomenon that material goes out not go.Common each internal heating fluidized bed section temperature can't be controlled separately, can not carry out the adjustment of temperature in the water content of each section at material like this, and feeding quantity air pressure inside instability when big.
(3) summary of the invention:
The utility model provides a kind of discharging smooth and easy, safe in utilization at the deficiencies in the prior art, and material can not be bonded on the upper bed body inner surface, the special-purpose internal heating fluidized bed drying machine of adipic acid that drying effect is desirable.
The utility model adopts following solution:
The special-purpose internal heating fluidized bed drying machine of adipic acid is made up of upper bed body, leave the bed body and fluidisation section, and the fluidisation section is at upper bed body and leave the bed between the body, is provided with steam pipe coil in it; Upper bed body is provided with charging aperture and air outlet; The body of leaving the bed is provided with hand-hole and air inlet; The upper bed body top also is provided with venting, and its outer surface is provided with the insulation serpentine coil; Be provided with the gas balance pipeline between the star discharge valve of upper bed body and fluidisation section discharge port; In the fluidisation section, be provided with the built-in heat exchanger that some windings have flow control valve.
The utility model is owing to be provided with the insulation serpentine coil and the venting that can feed steam at upper bed body, and upper bed body inside can sizing, does not influence the service behaviour of fluid bed, if blast, can protect equipment and personnel's safety; Gas balance pipeline between upper bed body and the star discharge valve can make material flow out fluid bed smoothly, can not form accumulation; The built-in heat exchanger that is connected to flow control valve can be realized temperature control to each air compartment of fluid bed, saves the energy.Smooth and easy, the safety of discharging can not be bonded on the upper bed body inner surface during the utility model oven dry adipic acid, and desirable drying effect is arranged.
(4) description of drawings:
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the external structure schematic diagram of the special-purpose internal heating fluidized bed drying machine of the utility model adipic acid.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the structural representation of upper bed body insulation form in the utility model.
Fig. 4 is the structural representation of the gas balance pipeline between star discharge valve and the upper bed body in the utility model.
Among the figure: 1, supporting leg, 2, hand-hole, 3, the body of leaving the bed, 4, the fluidisation section, 5, built-in heat exchanger, 6, upper bed body, 7, charging aperture, 8, air outlet, 9, venting, 10, the gas balance pipeline, 11, star discharge valve, 12, the insulation serpentine coil, 13, air inlet, 14, flow control valve
(5) specific embodiment:
Embodiment:
Fig. 1, Fig. 2 have provided external structure schematic diagram of the present utility model.Mainly form by upper bed body 6, leave the bed body 3 and fluidisation section 4.Upper bed body 6 is provided with charging aperture 7 and air outlet 8.Fluidisation section 4 is at upper bed body 6 and leave the bed between the body 3, is provided with steam pipe coil in it.The body 3 of leaving the bed supports by supporting leg 1, which is provided with hand-hole 2 and air inlet 13.Said structure is the same with existing internal heating fluidized bed drying machine, and difference is the following aspects:
Directly over upper bed body 6, be provided with venting 9; venting 9 is that the explosion-proof equivalent according to data computation such as inner dust density of bed body and burning points designs; if the inner dust of bed body is blasted; the gas of gushing will well be protected equipment and personnel's safety like this from venting 9 ejections at a high speed.
In fluidisation section 4, added some windings the built-in heat exchanger 5 of flow control valve 14 has been arranged.Material is dropped on the top of fluidisation section air distribution plate by charging aperture 7, under the urging of the hot blast that brings by the body 3 of leaving the bed, form fluidized state, built-in heat exchanger 5 is arranged on fluidisation section 4 middle parts, contact fully with irregular material of gushing, under the effect of this indirect thermal source, strengthened heat and mass transfer process, the moisture of most materials is deviate from.Because the bed body is excessive, material each water content, temperature, thermal sensitivity that distributes section from the charging aperture to the discharging opening all is different, distribution according to material, each built-in heat exchanger all has flow control valve separately, can realize control like this, just realize the control of the hot actuator temperature of internal displacement simultaneously the vapours flow of built-in heat exchanger 5.Being provided with like this can better adapt to material, reaches better drying effect.
Claims (1)
1. the special-purpose internal heating fluidized bed drying machine of an adipic acid is made up of upper bed body, leave the bed body and fluidisation section, and the fluidisation section is at upper bed body and leave the bed between the body, is provided with steam pipe coil in it; Upper bed body is provided with charging aperture and air outlet; The body of leaving the bed is provided with hand-hole and air inlet; It is characterized in that: the upper bed body top also is provided with venting, and its outer surface is provided with the insulation serpentine coil; Be provided with the gas balance pipeline between the star discharge valve of upper bed body and fluidisation section discharge port; In the fluidisation section, be provided with the built-in heat exchanger that some windings have flow control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520083753 CN2788104Y (en) | 2005-04-27 | 2005-04-27 | Inner heating fluidized bed dryer dedicated for adipic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520083753 CN2788104Y (en) | 2005-04-27 | 2005-04-27 | Inner heating fluidized bed dryer dedicated for adipic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2788104Y true CN2788104Y (en) | 2006-06-14 |
Family
ID=36786399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520083753 Expired - Lifetime CN2788104Y (en) | 2005-04-27 | 2005-04-27 | Inner heating fluidized bed dryer dedicated for adipic acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2788104Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425932A (en) * | 2011-11-16 | 2012-04-25 | 瓮福（集团）有限责任公司 | Method for guaranteeing safety of drying system in sulfur phosphate fertilizer production |
-
2005
- 2005-04-27 CN CN 200520083753 patent/CN2788104Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425932A (en) * | 2011-11-16 | 2012-04-25 | 瓮福（集团）有限责任公司 | Method for guaranteeing safety of drying system in sulfur phosphate fertilizer production |
| CN102425932B (en) * | 2011-11-16 | 2014-02-26 | 瓮福（集团）有限责任公司 | Method for guaranteeing safety of drying system in sulfur phosphate fertilizer production |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
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: Tianli Drying Equipment Co., Ltd., Shandong 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 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150427 Granted publication date: 20060614 |