CN202511562U - Drying device for closed cycle, solvent recovery and spraying granulation - Google Patents
Drying device for closed cycle, solvent recovery and spraying granulation Download PDFInfo
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- CN202511562U CN202511562U CN2012201431260U CN201220143126U CN202511562U CN 202511562 U CN202511562 U CN 202511562U CN 2012201431260 U CN2012201431260 U CN 2012201431260U CN 201220143126 U CN201220143126 U CN 201220143126U CN 202511562 U CN202511562 U CN 202511562U
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Abstract
The utility model relates to a drying device for a closed cycle, solvent recovery and spraying granulation. A heat exchanger comprises a plurality of layers of heat exchange units and preheating units, wherein the heat exchange units are connected pairwise up and down in a sealing mode, the preheating units are connected under the heat exchange unit at the bottom layer in a sealing mode, the bottom air inlet of the heat exchange unit at the bottom layer is connected with the air outlet of an explosion-proof circulating fan, the thermal medium inlet of each heat exchange unit is connected with a saturated steam delivery pipe, the thermal medium outlet of each heat exchange unit is connected with the thermal medium inlet of each preheating unit after passing through a steam trap, and the thermal medium outlet of each preheating unit is connected with a boiler. When the drying device is used, saturated steam at a temperature of 130 DEG C is fed into each heat exchange unit and subjected to the heat exchange with gases for fluidized drying, and then superheated water at a temperature of 130 DEG C is output; the superheated water passes through the steam trap to generate flash steam and present a vapor-liquid mixed state at a temperature of 100 DEG C, and is delivered to each heat exchange unit for the heat exchange; and preheated gases finally reach a required temperature after heating layer by layer of the heat exchange units.
Description
Technical field
The utility model relates to the technical field of drying equipment, specifically is a kind of drying device that is suitable for realizing inert gas closed cycle, solvent recovery and spraying granulation.
Background technology
Chinese patent document CN101776372A discloses a kind of nitrogen closed cycle drying and solvent recovering system, has fluid bed dryer, condensing unit, solid and gas separator, circulating fan, heat exchanger, solvent recovery jar and nitrogen and supplies pipe; The exhaust outlet of fluid bed dryer is connected with the air inlet of said condensing unit through pipeline; The air outlet of condensing unit is connected with said solid and gas separator; The air outlet of solid and gas separator is connected with said circulating fan; The wind of circulating fan output is delivered to said heat exchanger heating, and the nitrogen after the heating is delivered in the drying machine; The solvent collection mouth of said condensing unit is connected with the solvent recovery jar, and said condensing unit and solvent recovery jar supply pipe that cooling medium is provided by cooling fluid; The charging aperture of said fluid bed dryer is equipped with material envelope type screw feeder.It has realized the fluidized drying and the Recovery of Organic Solvent of continuous charging and discharging, no waste gas discharge of wastewater.
The weak point of above-mentioned existing closed cycle fluidized drying machine host is: the thermal efficiency of dry gas heating reduces.
Summary of the invention
The technical problem that the utility model will solve provides a kind of closed cycle, solvent simple in structure, that the heat energy utilization rate is higher and reclaims and the spraying granulation drying device.
For solving the problems of the technologies described above; The closed cycle that the utility model provides, solvent are reclaimed and the spraying granulation drying device comprises and is used for the dry heat exchanger 5 with gas of ebuillition of heated, and this heat exchanger 5 comprises: the heat exchange unit 5.1 that the multilayer upper-lower seal connects and be sealedly attached to the preheating unit 5.2 of heat exchange unit 5.1 belows of bottom; This preheating unit 5.2 comprises the multilayer that upper-lower seal connects; The bottom air intake vent that is in the preheating unit 5.2 of the bottom links to each other with the air outlet of said explosion-proof circulating fan 4, and the top outlet inlet of the heat exchange unit 5.1 of top layer is the hot-blast outlet of said heat exchanger 5.
The thermal medium inlet of each heat exchange unit 5.1 links to each other with the saturated steam carrier pipe, and the thermal medium outlet of each heat exchange unit 5.1 links to each other with the thermal medium inlet of each preheating unit 5.2 through a steam trap 11 backs, and the thermal medium outlet of each preheating unit 5.2 links to each other with boiler.
The thermal medium outlet output condensed water of each preheating unit 5.2, this condensed water is sent back to boiler, regenerates the said saturated steam that is not less than 130 ℃.
During use; 130 ℃ saturated steam send into each heat exchange unit 5.1 and fluidized drying with gas converting heat after the superheated water of 130 ℃ of outputs; This superheated water of 130 ℃ generates flash steam behind said steam trap 11; And be 100 ℃ vapour-liquid admixture, and send into each preheating unit 5.2 heat exchange, be used for the said fluidized drying of preheating and use gas; Successively heated through each heat exchange unit 5.1 again by the gas of preheating, finally reach required temperature.
In the heat transfer process of each heat exchange unit 5.1,130 ℃ saturated steam is emitted covert heat in the process that is condensed into 130 ℃ of water, makes the heat exchange coil in each heat exchange unit 5.1 remain at 130 ℃; And then make fluidized drying after heat exchange successively, reach 120 ℃ basically with gas.
Said 130 ℃ superheated water is sent into each preheating unit 5.2 behind said steam trap 11, use gas, be beneficial to the raising thermal energy conversion efficiency, with energy-conservation with the said fluidized drying of preheating.
Said drying device also comprises the fluidized drying main frame, and this fluidized drying main frame comprises upper shell 1.1, boiling-house 1.2 and the lower shell 1.3 of upper-lower seal connection successively; Boiling-house 1.2 bottoms are provided with bed board, it is characterized in that: said bed board is made up of two boards body 1.2.1, and the neighboring edge of this two boards body 1.2.1 is separately fixed on sheathed each other the rotating shaft 1.2.2 and axle sleeve 1.2.3; The end of extending boiling-house of this rotating shaft 1.2.2 and axle sleeve 1.2.3 with drive respectively that this rotating shaft 1.2.2 and axle sleeve 1.2.3 rotate pneumatic, surge or electric driving mechanism links to each other.
The top at the neighboring edge place of described two boards body 1.2.1 is provided with crossbeam 1.2.8; The lower surface of this crossbeam 1.2.8 is provided with sealing strip 1.2.9; Sealing bar 1.2.9 is suitable for when the bottom port of described two boards body 1.2.1 sealing boiling-house 1.2, making the neighboring edge of said two boards body 1.2.1 and said crossbeam 1.2.8 realize being sealed and matched; The bottom end face of boiling-house 1.2 is provided with sealing ring 1.2.0; Said sealing ring 1.2.0 is suitable for making the remaining edge of described two boards body 1.2.1 and the bottom port of said boiling-house 1.2 to be sealed and matched; Thereby ascending air is only passed through from the orifice plate or the sintering net that constitute bed board; Prevent the part from leaking out and cause the distinguished and admirable inequality on the bed board, and then cause uneven drying.
Embodiment as pneumatic drive mechanism; Said pneumatic drive mechanism comprises the connecting rod 1.2.6 of the end of extending boiling-house of being fixed in said rotating shaft 1.2.2 and axle sleeve 1.2.3, and this flexibly connects with the piston rod end of the first rotational lock cylinder 1.2.4, the second rotational lock cylinder 1.2.5 respectively the far-end of connecting rod 1.2.6; During work; The first rotational lock cylinder 1.2.4, the second rotational lock cylinder 1.2.5 successively control its action by PLC; And then control said rotating shaft 1.2.2 and axle sleeve 1.2.3 alternately rotation successively, and make the alternately upset downwards successively of corresponding plate body, so that the material on the said bed board falls into said lower shell fully; And the realization automatic continuous production, and then enhance productivity.
Said rotating shaft 1.2.2 and axle sleeve 1.2.3 bearing cooperate, and said rotating shaft 1.2.2 and axle sleeve 1.2.3 constitute rotary seal with the auxiliary section of boiling-house wall body respectively and cooperate.
The bottom port of said boiling-house 1.2 is rounded, and described two boards body 1.2.1 is the semicircle 1.2.1 of symmetrical distribution.
The middle and upper part of said upper shell 1.1 interior, contiguous these upper shells 1.1 is provided with central dividing plate 1.1.0; And a plurality of cloth bags 1.6 of distribution and this central dividing plate 1.1.0 both sides; Bottom opening in each cloth bag of said central dividing plate 1.1.0 homonymy is fixed on the base fabric 1.6.0; Be distributed with the through hole 1.6.3 that links to each other with the bottom opening of said cloth bag 1.6 respectively on this base fabric 1.6.0; Each base fabric 1.6.0 is separately fixed on the waist shape ring 1.6.1 of the dividing plate 1.1.0 both sides that mediate; Be fixed with pressure bladder 1.6.2 around each waist shape ring 1.6.1, each the pressure bladder 1.6.2 after the inflation is suitable for making between each waist shape ring 1.6.1 and the central dividing plate 1.1.0 and between the inwall of each waist shape ring 1.6.1 and said upper shell 1.1 and is sealed and matched, so that the ascending air in the upper shell 1.1 is only discharged through each cloth bag 1.6.
Top in each cloth bag of said central dividing plate 1.1.0 homonymy is located on the lift bag frame 1.6.4, and this lift bag frame 1.6.4 links to each other with a locking cylinder 1.6.5
The bottom of contiguous said upper shell 1.1 is provided with spray gun 1.1.2, and the shower nozzle of this spray gun 1.1.2 is located at the bottom centre place of said upper shell 1.1.This spray gun 1.1.2 links to each other with the solvent carrier pipe with the elevated pressure nitrogen tracheae.The wall body of contiguous said upper shell 1.1 bottoms is provided with a plurality of pilot hole 1.1.3 that are used to be provided with said spray gun 1.1.2 that distribute up and down; Be used for selecting corresponding pilot hole for use according to the height of material in said boiling-house 1.2; And the material end face in the vaporific feed liquid that the makes said spray gun 1.1.2 ejection said boiling-house 1.2 that is suitable for covering just, and prevent that feed liquid is bonded at the inwall of said boiling-house 1.2.
The technique effect that the utlity model has: the closed cycle of (1) the utility model, solvent reclaim and the spraying granulation dryer group, and the bed board of employing is suitable for automatic blanking, and sealing effectiveness is better, and working strength is low, and production efficiency is high, are convenient to operation.(2) cloth bag of the utility model adopts air sac sealing, in conjunction with the cylinder dither technique, is suitable for fully reclaiming fine granular materials.(3) heat exchanger of the utility model is suitable for utilizing flash steam, the hot water preheating gas to be heated of abundant 130 ℃ superheated water generation, has significantly improved utilization efficiency of heat energy.
Description of drawings
For the content that makes the utility model is more clearly understood, below basis specific embodiment and combine accompanying drawing, the utility model is done further detailed explanation, wherein
Fig. 1 is the structural representation of the dryer group of the utility model;
Fig. 2 is the structural representation of the boiling-house of the utility model;
Fig. 3 is the profile of the boiling-house among Fig. 2;
Fig. 4 is the partial enlarged drawing of the local I of said boiling-house;
Fig. 5 is the partial enlarged drawing of the local II of said boiling-house;
Fig. 6 is the vertical view of the boiling-house among Fig. 2;
Fig. 7 is the structural representation of each interior cloth bag of the upper shell of the utility model;
Fig. 8 is the A-A profile of Fig. 7.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is elaborated:
Like Fig. 1, the closed cycle of present embodiment, solvent reclaim and the spraying granulation drying device, and it comprises: fluidized drying main frame, fluidized drying main frame comprise upper shell 1.1, boiling-house 1.2 and the lower shell 1.3 of upper-lower seal connection successively.
The exhaust duct that is connected on the top exhaust outlet of said upper shell 1.1 links to each other with nitrogen filtering device 2, condensation and liquid-resisting device 3, explosion-proof circulating fan 4, heat exchanger 5 successively, and the hot-blast outlet of heat exchanger 5 links to each other with the air intake vent of said lower shell 1.3.
Condensation and liquid-resisting device 3 link to each other with solvent recovery jar 6, are provided with first Pneumatic butterfly valve 8 and displacement blow-down pipe 10 successively with the inlet upper reaches of explosion-proof circulating fan 4, and the displacement blow-down pipe is provided with second Pneumatic butterfly valve 9; The inlet of explosion-proof circulating fan 4 links to each other with nitrogen steel cylinder group 7.
Said lower shell 1.3 is turbination, and the bottom of this lower shell 1.3 links to each other with a screening machine 1.5 through the Blowing stopper 1.4 that is used for sealed discharging, is used to sieve out finished product and fine powder.
The bottom of contiguous said upper shell 1.1 is provided with the charging aperture 1.1.4 of band seal valve, and this charging aperture 1.1.4 links to each other with feeder, and the fine powder that said screening machine 1.5 sieves out is sent into this feeder.
Boiling-house 1.2 bottoms are provided with bed board, and said bed board is made up of two boards body 1.2.1, and the neighboring edge of this two boards body 1.2.1 is separately fixed on sheathed each other the rotating shaft 1.2.2 and axle sleeve 1.2.3; The end of extending boiling-house of this rotating shaft 1.2.2 and axle sleeve 1.2.3 is fixed with connecting rod 1.2.6 respectively, and this flexibly connects with the piston rod end of first, second rotational lock cylinder 1.2.4,1.2.5 respectively the far-end of connecting rod 1.2.6; During work; First, second rotational lock cylinder 1.2.4,1.2.5 successively control its action by PLC; And then control said rotating shaft 1.2.2 and axle sleeve 1.2.3 alternately rotation successively, and make the alternately upset downwards successively of corresponding plate body, so that the material on the said bed board falls into said lower shell fully; And the realization automatic continuous production, and then enhance productivity.
The top at the neighboring edge place of described two boards body 1.2.1 is provided with crossbeam 1.2.8; The lower surface of this crossbeam 1.2.8 is provided with sealing strip 1.2.9; Sealing bar 1.2.9 is suitable for when the bottom port of described two boards body 1.2.1 sealing boiling-house 1.2, making the neighboring edge of said two boards body 1.2.1 and said crossbeam 1.2.8 realize being sealed and matched; The bottom end face of boiling-house 1.2 is provided with sealing ring 1.2.0; Said sealing ring 1.2.0 is suitable for making the remaining edge of described two boards body 1.2.1 and the bottom port of said boiling-house 1.2 to be sealed and matched; Thereby ascending air is only passed through from the orifice plate or the sintering net that constitute bed board; Prevent local leakage material, leak out, and cause the distinguished and admirable inequality on the bed board, and then cause uneven drying.
As preferred embodiment, sealing strip 1.2.9 comprises laterally arrange a pair of, and this laterally arranges with the edge of said two boards body 1.2.1 respectively to sealing strip 1.2.9.
When the bottom port of first, second rotational lock cylinder 1.2.4, this two boards body of 1.2.5 control 1.2.1 sealing boiling-house 1.2; Realize being sealed and matched in the edge of said two boards body 1.2.1; Ascending air is only passed through from the orifice plate or the sintering net that constitute bed board; Prevent the part from leaking out and cause the distinguished and admirable inequality on the bed board, and then cause uneven drying.
First, second Pneumatic butterfly valve 8,9 is controlled by said PLC; When first Pneumatic butterfly valve 8 is closed; Second Pneumatic butterfly valve 9 is opened, and with the nitrogen of nitrogen steel cylinder group 7 outputs through explosion-proof circulating fan 4, send into heat exchanger 5, fluidized drying main frame, nitrogen filtering device 2, condensation and liquid-resisting device 3 successively after; By said displacement blow-down pipe 10 air is discharged; When PLC recorded oxygen content and is lower than setting value through being located at first oxygen sensor in the said displacement blow-down pipe 10, the nitrogen control valve 7.1 that PLC controls on the output pipe of second Pneumatic butterfly valve 9, nitrogen steel cylinder group 7 was closed, and first Pneumatic butterfly valve 8 is opened; Can avoid the material of easy oxidation oxidized in the granulation dry run like this.
The air outlet of explosion-proof circulating fan 4 is provided with second oxygen sensor, in nitrogen closed cycle process, if when said PL C records oxygen content and exceeds standard through said second oxygen sensor, controls first Pneumatic butterfly valve 8 and closes, and nitrogen control valve 7.1 is opened; When PLC recorded oxygen content and is lower than setting value through being located at said first oxygen sensor, the nitrogen control valve of controlling on the output pipe of second Pneumatic butterfly valve 9, nitrogen steel cylinder group 7 7.1 was closed, and first Pneumatic butterfly valve 8 is opened; Thereby recover the nitrogen closed cycle.
Be provided with shake cylinder 1.1.5 in the top of each cloth bag of said central dividing plate 1.1.0 homonymy, be used to control the alternately shake of cloth bag of said central dividing plate 1.1.0 both sides, the action of shake cylinder 1.1.5 is controlled by PLC.
Said upper shell 1.1 tops are connected with the two-way exhaust duct that is distributed in said central dividing plate 1.1.0 both sides; This two-way exhaust duct links to each other with nitrogen filtering device 2 through collecting pipe; Be respectively equipped with Pneumatic butterfly valve on the said two-way exhaust duct; When a described shake cylinder 1.1.5 began to move, the said Pneumatic butterfly valve of homonymy was closed, with the fine grained on each cloth bag of conveniently shaking off side.
Two semicircular plate body 1.2.1 that constitute said bed board are as the rotation Dump gate; It comprises: stacked up and down seat shape net 1.2.10 and punched-plate 1.2.11, the edge of seat shape net 1.2.10 and punched-plate 1.2.11 is fixed in the stacked closed semicircular ring of a pair of symmetry up and down.The closed semicircular ring that is in the below is connected on said rotating shaft 1.2.2 or the axle sleeve 1.2.3 through a plurality of reinforcement 1.2.7.
The top of said bed board is provided with the rabbling mechanism 1.2.0 that is used for refining, with homogeneous material, guarantees dry uniformity, and improves drying efficiency.
The middle part of contiguous said upper shell 1.1 is provided with a plurality of rupture pressure disc 1.1.1, to shift to an earlier date explosion when the superpressure, guarantees the security of whole system equipment.
Said electric driving mechanism preferred driven by servomotor mechanism or step motor drive mechanism.The structural principle of driving mechanism of surging is identical with pneumatic drive mechanism.
Obviously, the foregoing description only be for explain clearly that the utility model does for example, and be not to be qualification to the embodiment of the utility model.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And conspicuous variation that these spirit that belong to the utility model are extended out or change still are among the protection domain of the utility model.
Claims (1)
1. a closed cycle, solvent reclaim and the spraying granulation drying device, comprise heat exchanger, and it is characterized in that: this heat exchanger comprises: the preheating unit of heat exchange unit that the multilayer upper-lower seal connects and the heat exchange unit below that is sealedly attached to bottom; This preheating unit comprises the multilayer that upper-lower seal connects; The bottom air intake vent that is in the preheating unit of the bottom links to each other with the air outlet of said explosion-proof circulating fan;
The thermal medium inlet of each heat exchange unit links to each other with the saturated steam carrier pipe, and the thermal medium outlet of each heat exchange unit is through linking to each other with the thermal medium inlet of each preheating unit behind the steam trap, and the thermal medium outlet of each preheating unit links to each other with boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201431260U CN202511562U (en) | 2012-04-06 | 2012-04-06 | Drying device for closed cycle, solvent recovery and spraying granulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201431260U CN202511562U (en) | 2012-04-06 | 2012-04-06 | Drying device for closed cycle, solvent recovery and spraying granulation |
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| Publication Number | Publication Date |
|---|---|
| CN202511562U true CN202511562U (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201431260U Expired - Fee Related CN202511562U (en) | 2012-04-06 | 2012-04-06 | Drying device for closed cycle, solvent recovery and spraying granulation |
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| CN (1) | CN202511562U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984964A (en) * | 2021-03-08 | 2021-06-18 | 上海田枫实业有限公司 | Explosion-proof freeze dryer |
-
2012
- 2012-04-06 CN CN2012201431260U patent/CN202511562U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984964A (en) * | 2021-03-08 | 2021-06-18 | 上海田枫实业有限公司 | Explosion-proof freeze dryer |
| CN112984964B (en) * | 2021-03-08 | 2022-04-26 | 上海田枫实业有限公司 | Explosion-proof freeze dryer |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20140406 |