CN202630616U - Purification belt drying unit - Google Patents
Purification belt drying unit Download PDFInfo
- Publication number
- CN202630616U CN202630616U CN201220195798.6U CN201220195798U CN202630616U CN 202630616 U CN202630616 U CN 202630616U CN 201220195798 U CN201220195798 U CN 201220195798U CN 202630616 U CN202630616 U CN 202630616U
- Authority
- CN
- China
- Prior art keywords
- drying chamber
- jar
- air
- house steward
- hothouse
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses a purification belt drying unit, which comprises a belt drying device, a water film duster and a bag-type dust remover. The belt drying device is provided with at least three drying chambers. A heating device of each heat drying chamber is positioned outside the heat drying chamber, and comprises a heat exchange box body, and a fan and a heat exchanger, which are arranged in the heat exchange box body. A primary and secondary filter and a high-efficiency filter are arranged at an air inlet and an air outlet of each heat exchange box body respectively. The outlet air of each heat exchange box body is introduced into the corresponding heat drying chamber through an air supply pipe. A filter is arranged at an air outlet of a cold drying chamber. A circulating fan for circulating air according to a certain path is arranged in each of the heat drying chambers and the cold drying chamber. According to the purification belt drying unit, the heat exchangers of the belt drying device are positioned outside the drying chambers, so that cross material contamination caused by residues on the surfaces of the heat exchangers is avoided; and moreover, the unit can be used for treating tail gases to facilitate environmental protection.
Description
Technical field
The utility model relates to belt drying equipment.
Background technology
Band drier is the normal continuous drying equipment, is particularly suitable for the ventilative drying of sheet, strip, granular material preferably.Traditional band drier has one or more hothouses, and conveyer belt carries material through all hothouses, is provided with heat exchanger in each hothouse, and thermal current passes through the material on the conveyer belt from top to bottom or from the bottom up, thereby makes evenly drying of material.For the band drier that is arranged on heater in the hothouse, for the material that in dry run, is prone to produce dust, dust deposits on the surface of heat exchanger easily; Influence efficiency of heat exchanger, more serious is because heat exchanger generally is finned, is difficult to thoroughly clean; There is residue; Same equipment replacement different material is dry, can cause cross pollution to new material, even change material of the same race; Also can cause cross pollution between the different batches, be referred to as logistics in the industry that Here it is and pollute.
China's Granted publication number is the disclosed a kind of multistage band drier that has hot air circulating system of utility model patent of 201892392 (patent No. is 201020603634.3); It has drying box; The drying box top is provided with the dehumidification system with the inner UNICOM of drying box; Be equipped with the conveyer belt that transmits material in the drying box; The conveyer belt two ends are respectively equipped with charging aperture, discharging opening, and the inner conveyer belt below of described each drying box all is provided with heater, all is provided with heated air circulation device between described each heater and the conveyer belt.This has the multistage band drier of hot air circulating system, through in the drying box of band drier, increasing by a cover hot air circulating system, makes evenly drying of material, and has accelerated rate of drying.But above-mentioned utility model is arranged on heater in the drying box, and in each drying box, forms hot air circulation, has the hidden danger of material cross pollution equally.
The utility model content
The purpose of the utility model is to propose to prevent the contaminated a kind of purification belt drying unit of material.
For achieving the above object, the utility model is taked following technical scheme:
The purification belt drying unit of the utility model comprises belt drying device, water dust scrubber and sack cleaner; Said belt drying device has at least three hothouses; Each hothouse is made up of main chamber and air channel, and the upper and lower part in air channel communicates with the main chamber, and hothouse is provided with air inlet and moisture exhausting port; One conveyer belt is through the main chamber of each hothouse, and the import department of conveyer belt is provided with feed arrangement; Last hothouse is the cool-drying chamber in the said drying device; All the other are the heated drying chamber; The moisture exhausting port that is in anterior heated drying chamber respectively is connected with I hydrofuge house steward through dehumidification tube, and I hydrofuge house steward is connected with said water dust scrubber, is connected with the I wet-emitting blower on the I hydrofuge house steward; The moisture exhausting port of moisture exhausting port and cool-drying chamber that is in the heated drying chamber at rear portion respectively is connected with II hydrofuge house steward through dehumidification tube, and II hydrofuge house steward is connected with said sack cleaner, is connected with the II wet-emitting blower on the II hydrofuge house steward; The heater of every heated drying chamber all is in the outside of each corresponding heated drying chamber; Heater comprises the heat exchange casing, is arranged on blower fan and heat exchanger in the heat exchange casing; The air inlet place of heat exchange casing and air outlet place are provided with the junior middle school respectively and imitate filter and high efficiency particulate air filter, and the air-out of every heat exchange casing is imported corresponding heated drying chamber through the air feed pipe; The air inlet place of said cool-drying chamber is provided with filter, and indoor being equipped with of heated drying chamber and cool-drying makes the circulating fan of air by the circulation of certain path.
Said heated drying chamber is divided into the upwards cycling hot hothouse of wind from the conveyer belt upper strata to the downward cycling hot hothouse of conveyer belt lower floor and wind from conveyer belt lower floor to conveyer belt upper strata, and both quantity are identical or differ 1.
Said circulating fan adopts centrifugal circulating fan; The centrifugal circulating fan of said downward cycling hot hothouse is installed in the top in air channel, and air inlet is downwards facing to the air channel, and air outlet is facing to the top of main chamber; The said upwards centrifugal circulating fan of cycling hot hothouse is in the top of main chamber, and air inlet is facing to the top of conveyer belt, and air outlet is facing to the air channel.
This dry equipment has CIP on-line cleaning work station; CIP on-line cleaning work station be provided with acid jar, alkali jar, clear water jar, feed flow house steward, recovery house steward and and each hothouse recycling can one to one; Sour jar, alkali jar and clear water jar are equipped with additional mouth of clear water and infusion port, respectively are provided with on acid jar and the alkali jar and return the liquid mouth, and the additional mouth of the clear water of sour jar, alkali jar and clear water jar is all managed with the clear water confession and is connected; The infusion port of acid jar, alkali jar and clear water jar all is connected with the feed flow house steward; Be connected with scavenging pump on the feed flow house steward, the liquid mouth that returns of acid jar and alkali jar all is connected with the recovery house steward, reclaims on the house steward and is connected with the backhaul pump; The Sewage outlet of hothouse connects with corresponding recycling can through blow-off pipe; The indoor shower nozzle that can do 360 ° of rotations that is equipped with of heated drying chamber and cool-drying, the heated drying chamber respectively is connected through the feed flow house steward of jet pipe with CIP on-line cleaning work station with the indoor shower nozzle of cool-drying.
Said feed arrangement comprises hopper, motor, bolt and nut transmission, dihedral poke rod and sliding piece; Said sliding piece is connected the bottom of dihedral poke rod and is in the hopper; The upper end of poke rod is connected on the nut of bolt and nut transmission, and screw rod is rotated by driven by motor.
Said conveyer belt is the folded plate type conveyer belt, and flap is provided with strip wind hole.
The utlity model has following good effect: 1, the heat exchanger of the belt drying device of this equipment is in the outside of hothouse, though on heat exchanger surface laying dust, can not exist because of heat exchanger surface has residue yet and cause the material cross pollution.2, the feed arrangement of this equipment adopts the bolt and nut transmission; Through driving lever the material in the hopper is stirred; Because the motor of feed arrangement and the zone that the bolt and nut transmission is avoided hopper and conveyer belt feed end, prevent that the lubricating oil on the mechanical part of feed arrangement from polluting material.3, the belt drying device of this equipment adopts respectively to the cocycle air-supply and the air supply mode that circulates downwards, the even drying of favourable material.4, this equipment carries out dedusting to the higher tail gas of water capacity by water dust scrubber, and the tail gas lower to water capacity carries out dedusting by sack cleaner, because tail gas is handled, environmental.5, this equipment is provided with CIP on-line cleaning work station, convenient cleaning to hothouse.
Description of drawings
Fig. 1 is the schematic diagram of the utility model.
Fig. 2 is the schematic diagram of CIP on-line cleaning work station.
Fig. 3 is the structural representation of belt drying device.
Fig. 4 is downward cycling hot drying chamber structure sketch map.
Fig. 5 is the cycling hot drying chamber structure sketch map that makes progress.
Fig. 6 is the flap sketch map of folded plate type conveyer belt.
The specific embodiment
See Fig. 1 to Fig. 3, this equipment comprises belt drying device 1, feed arrangement 2, water dust scrubber 3, sack cleaner 4 and CIP on-line cleaning work station 5.
Said belt drying device 1 has at least three hothouses, and each hothouse is made up of 1-a of main chamber and air channel 1-b, and the upper and lower part of air channel 1-b communicates with the 1-a of main chamber, and hothouse is provided with air inlet and moisture exhausting port, and a conveyer belt 1-4 is through the 1-a of main chamber of each hothouse.See Fig. 6, said conveyer belt 1-4 is the folded plate type conveyer belt, and flap 1-4-3 is provided with strip wind hole 1-4-31, and flap 1-4-3 is a stainless steel materials, and accumulation of heat easily just begins preheating when material touches flap.
Last hothouse is cool-drying chamber 1-2 in the said drying device 1; Remaining hothouse is heated drying chamber 1-1; The moisture exhausting port that is in anterior heated drying chamber respectively is connected with I hydrofuge house steward 6-1 through dehumidification tube 6-1-1; I hydrofuge house steward 6-1 is connected with said water dust scrubber 3, is connected with I wet-emitting blower 7-1 on the I hydrofuge house steward 6-1.The moisture exhausting port of moisture exhausting port and cool-drying chamber 1-2 that is in the heated drying chamber 1-1 at rear portion respectively is connected with II hydrofuge house steward 6-2 through dehumidification tube 6-2-1; II hydrofuge house steward 6-2 is connected with said sack cleaner 4, is connected with II wet-emitting blower 7-2 on the II hydrofuge house steward 6-2.
The heater 1-3 of every heated drying chamber 1-1 all is in the outside of each corresponding heated drying chamber 1-1; Heater 1-3 comprises heat exchange casing 1-3-0, is arranged on blower fan 1-3-2 and heat exchanger 1-3-3 in the heat exchange casing 1-3-0; The air inlet place of heat exchange casing 1-3-0 and air outlet place are provided with the junior middle school respectively and imitate filter 1-3-1 and high efficiency particulate air filter 1-3-4, and the air-out of heat exchange casing 1-3-0 is through air feed pipe 1-5 input heated drying chamber; Be provided with in the 1-1 of heated drying chamber and make the centrifugal circulating fan 1-6 of air by the circulation of certain path.The air inlet place of said cool-drying chamber 1-2 is provided with filter 1-7, is provided with in the 1-2 of cool-drying chamber to make the centrifugal circulating fan 1-6 of air by the circulation of certain path.
Said heated drying chamber 1-1 be divided into wind from the conveyer belt upper strata the upwards cycling hot hothouse of 1-4-1 to the downward cycling hot hothouse of the 1-4-2 of conveyer belt lower floor and wind from the 1-4-2 of conveyer belt lower floor 1-4-1 to the conveyer belt upper strata; The layout of the cycling hot hothouse and the cycling hot hothouse that makes progress can be that anterior heated drying chamber is downward cycling hot hothouse downwards; The heated drying chamber at rear portion is the cycling hot hothouse that makes progress; Otherwise also can, also can make progress cycling hot hothouse and downward cycling hot hothouse at interval.
The quantity of hothouse determines as the case may be, is 6 hothouses among Fig. 1, is 7 hothouses among Fig. 3.Among Fig. 1, the heated drying chamber is 5, and anterior 3 is downward cycling hot hothouse, and the cycling hot hothouse is 1 with the cycling hot hothouse difference quantitatively that makes progress downwards.Among Fig. 3, the heated drying chamber is 6, and anterior 3 is downward cycling hot hothouse, and upwards the cycling hot hothouse is with cycling hot hothouse quantity is identical downwards.
Fig. 4 is downward cycling hot drying chamber structure signal; Centrifugal circulating fan 1-6 is installed in the top of air channel 1-b; Air inlet is downwards facing to air channel 1-b, and air outlet is facing to the top of the 1-a of main chamber, and the air outlet of said air feed pipe 1-5 is in centrifugal circulating fan air outlet side; Under centrifugal circulating fan 1-6 effect; It is mixed with circulating air to get into air channel 1-b by the new hot blast of air feed pipe 1-5 input, get into the conveyer belt 1-4 of main chamber from the air channel above, 1-4-1 circulates to the 1-4-2 of conveyer belt lower floor from the conveyer belt upper strata.
Fig. 5 is the cycling hot drying chamber structure sketch map that makes progress; Centrifugal circulating fan 1-6 is in the top of the 1-a of main chamber; Air inlet is facing to the top of conveyer belt 1-4, and air outlet is facing to air channel 1-b, and the air outlet of said air feed pipe 1-5 is in centrifugal circulating fan air outlet side; Under centrifugal circulating fan 1-6 effect; New hot blast entering air channel 1-b and circulating air by air feed pipe 1-5 input are mixed, and 1-b gets into the conveyer belt 1-4 of main chamber below from the air channel, and 1-4-1 circulates to the conveyer belt upper strata from the 1-4-2 of conveyer belt lower floor.
Cool-drying chamber 1-2 can adopt down circulation, also can adopt cocycle, and additional new wind does not heat, and new wind gets into the circulation of cool-drying chamber through filtering, and material is played cooling effect.
See Fig. 1, said feed arrangement 2 is arranged on the import department top of conveyer belt 1-4.Said feed arrangement 2 comprises hopper 2-4, motor 2-1, bolt and nut transmission, dihedral poke rod 2-2 and sliding piece 2-3; Said sliding piece 2-3 is connected the bottom of dihedral poke rod 2-2 and is in the hopper 2-4; The upper end of poke rod 2-2 is connected on the nut of bolt and nut transmission, and screw rod is rotated by driven by motor.The zone that motor 2-1 and bolt and nut transmission depart from hopper and conveyer belt feed end.
See Fig. 2; CIP on-line cleaning work station 5 is provided with acid jar 5-1, alkali jar 5-2, clear water jar 5-3, feed flow house steward 5-4, reclaim house steward 5-5 and with each hothouse recycling can 5-6 one to one; Acid jar 5-1, alkali jar 5-2 and clear water jar 5-3 are equipped with clear water and replenish mouthful 5-a and infusion port 5-b; Respectively be provided with on acid jar 5-1 and the alkali jar 5-2 and return liquid mouth 5-c; The clear water of acid jar 5-1, alkali jar 5-2 and clear water jar 5-3 replenishes mouthful 5-a and all supplies pipe 5-7 to be connected with clear water, and the infusion port 5-b of acid jar 5-1, alkali jar 5-2 and clear water jar 5-3 all is connected with feed flow house steward 5-4, is connected with scavenging pump 5-8 on the feed flow house steward 5-4; The liquid mouth 5-c that returns of acid jar 5-1 and alkali jar 5-2 all is connected with recovery house steward 5-5, reclaims on the house steward 5-5 and is connected with backhaul pump 5-9; The Sewage outlet of each hothouse connects with corresponding recycling can 5-6 through blow-off pipe 1-8; Be equipped with the shower nozzle 1-c that can do 360 ° of rotations in heated drying chamber 1-1 and the cool-drying chamber 1-2, shower nozzle 1-c respectively is connected with the feed flow house steward 5-4 of CIP on-line cleaning work station through jet pipe.
Claims (6)
1. one kind purifies the belt drying unit, comprises belt drying device (1), and it is characterized in that: this dry unit also comprises water dust scrubber (3) and sack cleaner (4); Said belt drying device (1) has at least three hothouses; Each hothouse is made up of main chamber (1-a) and air channel (1-b); The upper and lower part in air channel (1-b) communicates with main chamber (1-a); Hothouse is provided with air inlet and moisture exhausting port, and a conveyer belt (1-4) is through the main chamber (1-a) of each hothouse, and the import department of conveyer belt (1-4) is provided with feed arrangement (2); Last hothouse is cool-drying chamber (1-2) in the said drying device (1); All the other are heated drying chamber (1-1); The moisture exhausting port that is in anterior heated drying chamber respectively is connected with I hydrofuge house steward (6-1) through dehumidification tube (6-1-1); I hydrofuge house steward (6-1) is connected with said water dust scrubber (3), is connected with I wet-emitting blower (7-1) on the I hydrofuge house steward (6-1); The moisture exhausting port of moisture exhausting port and cool-drying chamber (1-2) that is in the heated drying chamber (1-1) at rear portion respectively is connected with II hydrofuge house steward (6-2) through dehumidification tube (6-2-1); II hydrofuge house steward (6-2) is connected with said sack cleaner (4), is connected with II wet-emitting blower (7-2) on the II hydrofuge house steward (6-2); The heater (1-3) of every heated drying chamber (1-1) all is in the outside of each corresponding heated drying chamber (1-1); Heater (1-3) comprises heat exchange casing (1-3-0), is arranged on blower fan (1-3-2) and heat exchanger (1-3-3) in the heat exchange casing (1-3-0); The air inlet place of heat exchange casing (1-3-0) and air outlet place are provided with the junior middle school respectively and imitate filter (1-3-1) and high efficiency particulate air filter (1-3-4), and the air-out of every heat exchange casing (1-3-0) is through the corresponding heated drying of air feed pipe (1-5) input chamber; The air inlet place of said cool-drying chamber (1-2) is provided with filter (1-7), is equipped with in heated drying chamber (1-1) and cool-drying chamber (1-2) to make the circulating fan (1-6) of air by the circulation of certain path.
2. a kind of purification belt drying unit according to claim 1; It is characterized in that: said heated drying chamber be divided into wind from the conveyer belt upper strata (1-4-1) upwards cycling hot hothouse to the downward cycling hot hothouse of conveyer belt lower floor (1-4-2) and wind from conveyer belt lower floor (1-4-2) to conveyer belt upper strata (1-4-1), both quantity are identical or differ 1.
3. a kind of purification belt drying unit according to claim 2, it is characterized in that: said circulating fan (1-6) adopts centrifugal circulating fan; The centrifugal circulating fan of said downward cycling hot hothouse is installed in the top of air channel (1-b), and air inlet is downwards facing to air channel (1-b), and air outlet is facing to the top of main chamber (1-a); The said upwards centrifugal circulating fan (1-6) of cycling hot hothouse (1-1) is in the top of main chamber (1-a), and air inlet is facing to the top of conveyer belt (1-4), and air outlet is facing to air channel (1-b).
4. a kind of purification belt drying unit according to claim 1; It is characterized in that: this drying system has CIP on-line cleaning work station (5); CIP on-line cleaning work station (5) is provided with acid jar (5-1), alkali jar (5-2), clear water jar (5-3), feed flow house steward (5-4), reclaim house steward (5-5) and with each hothouse recycling can (5-6) one to one; Acid jar (5-1), alkali jar (5-2) and clear water jar (5-3) are equipped with clear water and replenish mouthful (5-a) and an infusion port (5-b); Respectively be provided with on acid jar (5-1) and the alkali jar (5-2) and return liquid mouth (5-c); The clear water of acid jar (5-1), alkali jar (5-2) and clear water jar (5-3) replenishes mouthful (5-a) and all supplies pipe (5-7) to be connected with clear water; The infusion port (5-b) of acid jar (5-1), alkali jar (5-2) and clear water jar (5-3) all is connected with feed flow house steward (5-4); Be connected with scavenging pump (5-8) on the feed flow house steward (5-4), the liquid mouth (5-c) that returns of acid jar (5-1) and alkali jar (5-2) all is connected with recovery house steward (5-5), reclaims on the house steward (5-5) and is connected with backhaul pump (5-9); The Sewage outlet of hothouse connects with corresponding recycling can (5-6) through blow-off pipe (1-8); Be equipped with the shower nozzle (1-c) that can do 360 ° of rotations in heated drying chamber (1-1) and cool-drying chamber (1-2), heated drying chamber (1-1) respectively is connected with the feed flow house steward (5-4) of CIP on-line cleaning work station through jet pipe with cool-drying chamber (1-2) interior shower nozzle (1-c).
5. a kind of purification belt drying unit according to claim 1; It is characterized in that: said feed arrangement (2) comprises hopper (2-4), motor (2-1), bolt and nut transmission, dihedral poke rod (2-2) and sliding piece (2-3); Said sliding piece (2-3) is connected the bottom of dihedral poke rod (2-2) and is in the hopper (2-4); The upper end of poke rod (2-2) is connected on the nut of bolt and nut transmission, and screw rod is rotated by driven by motor.
6. a kind of purification belt drying unit according to claim 1, it is characterized in that: said conveyer belt (1-4) is the folded plate type conveyer belt, and flap (1-4-3) is provided with strip wind hole (1-4-31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220195798.6U CN202630616U (en) | 2012-05-03 | 2012-05-03 | Purification belt drying unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220195798.6U CN202630616U (en) | 2012-05-03 | 2012-05-03 | Purification belt drying unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202630616U true CN202630616U (en) | 2012-12-26 |
Family
ID=47383810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220195798.6U Withdrawn - After Issue CN202630616U (en) | 2012-05-03 | 2012-05-03 | Purification belt drying unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202630616U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636011A (en) * | 2012-05-03 | 2012-08-15 | 常州力马干燥工程有限公司 | Purifying belt-type drying system |
| CN105627713A (en) * | 2016-02-17 | 2016-06-01 | 常州市一红干燥设备有限公司 | Belt type drier |
-
2012
- 2012-05-03 CN CN201220195798.6U patent/CN202630616U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636011A (en) * | 2012-05-03 | 2012-08-15 | 常州力马干燥工程有限公司 | Purifying belt-type drying system |
| CN102636011B (en) * | 2012-05-03 | 2014-03-19 | 常州力马干燥工程有限公司 | Purifying belt-type drying system |
| CN105627713A (en) * | 2016-02-17 | 2016-06-01 | 常州市一红干燥设备有限公司 | Belt type drier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202595491U (en) | Exhaust waste heat recovery and purification integrated device for forming machine | |
| CN102587099B (en) | Tunnel type high-efficiency circular drying device | |
| CN202630617U (en) | Band type dryer | |
| CN102636011B (en) | Purifying belt-type drying system | |
| CN102268796A (en) | Waste gas treating and waste heat recycling device and method | |
| CN103673545A (en) | Energy-saving environment-protecting type hot air vegetable drying device | |
| CN206944212U (en) | A kind of flue gas waste heat recovery apparatus | |
| CN109320046A (en) | A kind of movable type feces of livestock and poultry drying system and method | |
| CN202630616U (en) | Purification belt drying unit | |
| CN105964088A (en) | Fume desulfurization, denitrification, dust collection and waste heat recycling integrated machine for bulk curing barn | |
| CN107677090A (en) | A kind of energy-saving canal drier | |
| CN207688583U (en) | A kind of energy-saving canal drier | |
| CN203683571U (en) | Dry dedusting and energy-saving system | |
| CN206192053U (en) | Multipurpose formula drying equipment | |
| CN209386304U (en) | Garbage burning boiler waste heat recycles desiccation crude waste device | |
| CN104126660B (en) | A kind of round-the-clock fluidized bed process crop dryer | |
| CN204255124U (en) | A kind of evaporative condenser being applicable to power plant | |
| CN110180324A (en) | A kind of air cleaning unit and purification method | |
| CN111347772A (en) | Production line drying device | |
| CN203969080U (en) | Energy-saving fluidized bed process cereal continuous drier | |
| CN210569530U (en) | Environment-friendly energy-saving zero-emission spray drying equipment | |
| CN204601909U (en) | A kind of high-efficiency dust remover for industry | |
| CN207066019U (en) | A kind of environment-friendly type foodstuff drying device | |
| CN208943774U (en) | A kind of condensation cycle gain of heat batch circulating grain products drying energy saving device | |
| CN202492721U (en) | Tunnel type efficient circulating drying device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121226 Effective date of abandoning: 20140319 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20121226 Effective date of abandoning: 20140319 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |