CN206399164U - Drying unit - Google Patents
Drying unit Download PDFInfo
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- CN206399164U CN206399164U CN201621389554.6U CN201621389554U CN206399164U CN 206399164 U CN206399164 U CN 206399164U CN 201621389554 U CN201621389554 U CN 201621389554U CN 206399164 U CN206399164 U CN 206399164U
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- drying
- cooling cylinder
- spraying cooling
- combustion chamber
- drying unit
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Abstract
The utility model discloses a kind of drying unit, including dryer, be connected with dryer and for the heating plant for dryer heat supply, spraying cooling cylinder, be arranged at the storage tank that spraying cooling cylinder lower section is connected with spraying cooling cylinder and the water circulating pump being arranged between storage tank and spraying cooling cylinder；The Drying includes feed end and discharge end, and the discharge end is provided between exhaust outlet, exhaust outlet and the spraying cooling cylinder and connected by the exhaust passage being arranged between exhaust outlet and spraying cooling cylinder；Water in storage tank is pumped to the upper end of spraying cooling cylinder and discharged downwards by water circulating pump, the waste gas for making exhaust passage transport to spraying cooling cylinder is contacted with water smoke, by the particulate matter precipitation in waste gas, pollution of the waste gas for draining into the external world to air is reduced, makes drying unit more environmentally friendly.
Description
Technical field
The utility model is related to chemical fertilizer manufacture field devices, more specifically, it relates to a kind of drying unit.
Background technology
Organic fertilizer is commonly called as farm manure, including with various animals, plant residue or metabolome into, such as human and animal excreta, stalk,
Animal residue, butcher field waste etc..
Existing organic fertilizer manufacturing process is as follows：The materials such as sheep manure, pig manure, tea grounds are stirred and mixes and is fermented, are passed through
Pulverizer crushing is crossed, is then dried or is dried again, granulated by comminutor, is packed after secondary fermentation.
A kind of brid guano drying unit as disclosed in Publication No. 202092417U Chinese patent, including Drying, drying
Cylinder inner roof wall is connected provided with drying ring, drying ring with temperature controller, and temperature controller is located at Drying lateral wall, Drying bottom
Portion is provided with discharge outlet, and Drying front end is connected with feed screw, and the outlet of feed screw is connected with blanking plate, and blanking plate is put
In in Drying, it is connected, is provided with hopper after wet stock import, Drying with hopper by conveyance conduit above feed screw
Storage compartment's connection is held, storage compartment bottom is connected with spiral conveyer, and exhaust duct and cyclone dust collectors are passed through at the top of spiral conveyer
Connection, cyclone dust collectors are connected with air-introduced machine, and evacuated tube is communicated with air-introduced machine.
Because organic fertilizer can produce certain dust and stench in drying course, above-mentioned brid guano drying unit is directly by organic fertilizer
The waste gas produced in drying course is drained into air, can cause severe contamination to environment, is detrimental to health and ecological environment.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of environmentally friendly drying unit.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of drying unit, bag
Include combustion chamber, dryer, emission-control equipment, be connected with dryer and for the heating plant for dryer heat supply, spray
Cooling cylinder, it is arranged at spraying cooling cylinder lower section and the spraying cooling storage tank that is connected of cylinder and is arranged at storage tank and spray is cold
But the water circulating pump between cylinder；The dryer includes feed end and discharge end, and the discharge end is provided with exhaust outlet, the row
Connected between gas port and spraying cooling cylinder by the exhaust passage being arranged between exhaust outlet and spraying cooling cylinder；Set in combustion chamber
Have for the heating plant for dryer heat supply, heating plant includes setting above the combustion chamber for being used to place fuel, combustion chamber
The feed hopper of oriented combustion chamber charging, feed hopper is obliquely installed, and feed hopper is located at the end away from dryer in combustion chamber；Combustion
The side for burning chamber offers the discharge door being provided with discharging opening, discharging opening for controlling discharging opening to open and close, and combustion chamber bottom is opened
Provided with some through holes, ventilation part is installed with through hole, ventilation part is cylindrical and in combustion chamber, the upper bottom of ventilation part
Face closure, offers some air-vents sideways, and air-vent is tapered to be set, and the aperture of air-vent is successively decreased from the inside to the outside；Burning
The circular air blower that is arranged right below outside air blower, air blower of chamber is provided with the bucket that keeps out the wind.
By using above-mentioned technical proposal, water circulating pump by the water in storage tank be pumped to spraying cooling cylinder upper end and to
Lower release, makes the waste gas that spraying cooling cylinder is transported in exhaust passage be contacted with water smoke, the particulate matter in waste gas is precipitated, reduction is drained into
Pollution of the extraneous waste gas to air, makes drying unit more environmentally friendly.
The utility model is further arranged to：The end of the water circulating pump is provided with shower nozzle, and it is cold that the shower nozzle is located at spray
But in cylinder.
By using above-mentioned technical proposal, shower nozzle radially sprays, can by water being sprayed to waste gas evenly, increase water
With the contact area of waste gas, preferably precipitation clean-up effect is reached.
The utility model is further arranged to：Photodissociation equipment is connected with the output end of the spray adsorbent equipment.
By using above-mentioned technical proposal, photodissociation equipment can play the effect to exhaust air deodorization, and foul gas is passing through light
When solving equipment, deoxidation decomposing, purifying can be carried out, without adding chemical substance, more efficient environmental protection.
The utility model is further arranged to：Chimney is connected with the output end of the photodissociation equipment.
By using above-mentioned technical proposal, waste gas is immediately discharged to outside factory building through chimney, reduces shadow of the waste gas to operating personnel
Ring.
The utility model is further arranged to：Being provided between the chimney and the photodissociation equipment is used in photodissociation equipment
Abgasabsaugung to chimney air exhauster.
By using above-mentioned technical proposal, the Abgasabsaugung that air exhauster preferably can produce organic fertilizer in drying course
To spray adsorbent equipment and photodissociation equipment, waste gas is purified, and waste gas is discharged from chimney.
The utility model is further arranged to：The dryer includes frame, is positioned in frame for drying fertilizer
Drive device and the end cap that is fixedly installed in frame that Drying, driving Drying are rotated, the Drying respectively with institute
State frame and the end cap rotates connection, and the stock guide arranged in the shape of a spiral is fixed with the Drying, end cap is located at
The lower section of the discharge end of Drying and the end cap is provided with discharge bucket, and the exhaust outlet is located at the top of the end cap.
By using above-mentioned technical proposal, drive device drives Drying to rotate, makes the guide being fixedly connected with Drying
Plate stirs organic fertilizer in rotation process, organic fertilizer is completely attached to the hot-air that heating plant is exported, will by hot-air
Organic fertilizer is dried.Simultaneously because stock guide is helically set, stock guide can be by organic fertilizer from feed end to discharging in rotation process
End movement, and subsequent processing is expelled to by the discharge bucket of end cap；And in drying course organic fertilizer produce waste gas and with
The hot-air that organic fertilizer occurs after heat exchange can be discharged from exhaust outlet.
The utility model is further arranged to：The discharge end is sheathed in end cap.
By using above-mentioned technical proposal, waste gas can be reduced and escaped from the junction of discharge end and end cap.
The utility model is further arranged to：The diameter path length of the discharge end presents increasing form away from charging extreme direction and set
Put.
By using above-mentioned technical proposal, first, guiding function can be played, be easy to the organic fertilizer positioned at discharge end to be transferred to
End cap；Meanwhile, sealing can be increased, waste gas effusion is reduced.
The utility model is further arranged to：The end of the stock guide is fixed with organic fertilizer on reduction stock guide and dropped
Baffle plate.
Stock guide easily drops in 360 degree of rotary courses from stock guide, by using above-mentioned technical proposal, can rise
To certain barrier effect, increase stock guide transmits the efficiency of organic fertilizer.
The utility model is further arranged to：The drive device includes reducing motor, is fixedly installed in reducing motor
Gear one on output shaft and the gear two being fixedly installed on Drying, gear one are intermeshed with gear one and set.
By using above-mentioned technical proposal, reducing motor drive gear one rotates to drive the tooth being meshed with gear one
Wheel two is rotated, and reaches the effect for rotating Drying, and speed can be adjusted for reducing motor, according to circumstances adjusts turning for dryer
Dynamic speed.
In summary, the utility model has the advantages that：
First, by setting spray adsorbent equipment and photodissociation equipment, the waste gas discharged in dryer is purified and removed
It is smelly, make drying unit more environmentally friendly；
Second, by setting Drying, stock guide and heating plant, making the organic fertilizer being located in Drying in stock guide
Drive lower upset and fully with the hot air produced in heating plant, reach more preferable drying effect；
Third, by setting end cap, the sealing of Drying discharge end can be strengthened.
Brief description of the drawings
Fig. 1 is the structural representation of drying unit；
Fig. 2 is the sectional view of combustion chamber and dryer；
Fig. 3 is A portions enlarged drawing in Fig. 2；
Fig. 4 is the isometric side view of drying unit；
Fig. 5 is B portions enlarged drawing in Fig. 4；
Fig. 6 is C portions enlarged drawing in Fig. 2；
Fig. 7 is D portions enlarged drawing in Fig. 1；
Fig. 8 is E portions enlarged drawing in Fig. 1；
Fig. 9 is the sectional view of spraying cooling cylinder and storage tank.
In figure：1st, combustion chamber；2nd, dryer；21st, frame；22nd, Drying；221st, ring slider；222nd, gear two；223、
Stock guide；224th, baffle plate；225th, feed end；226th, discharge end；23rd, drive device；231st, reducing motor；232nd, gear one；24、
End cap；241st, exhaust outlet；242nd, discharge bucket；3rd, emission-control equipment；31st, adsorbent equipment is sprayed；311st, spraying cooling cylinder；312、
Storage tank；313rd, water circulating pump；314th, shower nozzle；32nd, photodissociation equipment；33rd, air exhauster；34th, chimney；4th, heating plant；41st, burn
Chamber；411st, discharging opening；412nd, through hole；42nd, feed hopper；43rd, discharge door；44th, observation window；45th, thermometer；46th, ventilation part；461、
Air-vent；47th, air blower；48th, keep out the wind bucket；5th, feeding-passage；6th, attemperator；61st, sleeve；62nd, bulge loop；621st, scrobicular ring；63、
Insulation sheet；7th, roller；71st, slide rail；8th, exhaust passage.
Embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
As shown in figure 1, a kind of drying unit, including combustion chamber 1, dryer 2 and the emission-control equipment set gradually
3。
Being provided with as shown in figure and 2, in combustion chamber 1 is used for the heating plant 4 for the heat supply of dryer 2, and heating plant 4 includes using
In the combustion chamber 41 for placing fuel, the top of combustion chamber 41 is provided with the feed hopper 42 fed to combustion chamber 41, and feed hopper 42 is tilted
Set, and feed hopper 42 is located at the end away from dryer 2 in combustion chamber 41；The side of combustion chamber 41 offers discharging opening 411,
Discharge door 43 for controlling discharging opening 411 to open and close is installed, discharge door 43, which is provided with, to be easy to observe fuel chambers on discharging opening 411
The observation window 44 of fuel combustion situation；The thermometer 45 for measuring temperature in combustion chamber 41 is additionally provided with combustion chamber 41（Such as
Shown in Fig. 1）；As shown in Figures 2 and 3, the bottom of combustion chamber 41 offers in some through holes 412, through hole 412 and is installed with ventilation part
46, ventilation part 46 is cylindrical and in combustion chamber 41, the upper bottom surface closing of ventilation part 46, and some air-vents are offered sideways
461, air-vent 461 is tapered to be set, and the aperture of air-vent 461 is successively decreased from the inside to the outside；Combustion chamber 41 be arranged right below drum
Blower fan 47, air blower 47 is outer to be provided with the bucket 48 that keeps out the wind around air blower 47, and air blower 47, which is fixedly installed in, to keep out the wind on bucket 48, and keep out the wind bucket
48 are set in bucket-shaped（Keep out the wind bucket 48 lower ending opening be less than keep out the wind bucket 48 upper end open）, make wind energy reach preferably be transferred to it is logical
Gas part 46.Open after air blower 47, the wind produced in air blower 47 leads to ventilation part 46, and enters burning by air-vent 461
Chamber 41, certain combustion-supporting effect is played to the fuel in combustion chamber 41.
As shown in Fig. 2 the feeding-passage 5 being additionally provided with for being fed for dryer 2 in combustion chamber 1, feeding-passage 5 is tilted
Set and positioned between Drying 22 and combustion chamber 41, the lower end of feeding-passage 5 is connected with Drying 22 and combustion chamber 41 respectively
Logical, organic fertilizer directly can enter in Drying 22 along feeding-passage 5.
As shown in Figures 4 and 5, the junction of feeding-passage 5 and Drying 22 is provided with attemperator 6, and attemperator 6 includes solid
Dingan County loaded on the sleeve 61 on combustion chamber 1, the bulge loop 62 being arranged on Drying 22 and be arranged at bulge loop 62 and sleeve 61 it
Between some insulation sheets 63, insulation sheet 63 set and mutually contradicted between insulation sheet 63 around Drying 22.As shown in fig. 6, convex
Ring 62 is provided with scrobicular ring 621, one end insertion scrobicular ring 621 of insulation sheet 63 and contradicted with scrobicular ring 621 and is connected, and the other end passes through spiral shell
Bolt is fixed on sleeve 61.
As shown in figure 1, dryer 2 includes frame 21, the Drying 22 being connected is rotated with frame 21 and driving Drying
22 drive devices 23 rotated.To reduce the friction between frame 21 and Drying 22, reduce connecing for frame 21 and Drying 22
Contacting surface is accumulated, and is rotatably connected to roller 7 in frame 21, roller 7 is arranged at the both sides of Drying 22 and contradicted with Drying 22.Such as Fig. 7
It is shown, for make Drying 22 in rotation process it is more stable, ring slider 221, and roller 7 can be fixedly mounted on Drying 22
On open up corresponding slide rail 71, sliding block is embedded in slide rail 71 and rotated along slide rail 71.
As shown in figure 8, drive device 23 includes reducing motor 231, it is fixedly mounted on the output shaft of reducing motor 231 with teeth
1 are taken turns, gear 1 is rotationally connected with frame 21, the tooth being meshed with gear 1 is installed with Drying 22
Take turns 2 222.The drive gear 1 of reducing motor 231 rotates to drive the gear 2 222 being meshed with gear 1（Dry
Dry cylinder 22）Rotate.
As shown in Fig. 2 being installed with the stock guide 223 arranged in the shape of a spiral, the end of stock guide 223 in Drying 22
Provided with the baffle plate 224 that organic fertilizer drops on stock guide 223 is reduced, the angle between baffle plate 224 and stock guide 223 is set to right angle
Or obtuse angle.Drying 22 includes feed end 225 and discharge end 226, and feed end 225 is rotated with sleeve 61 and is connected, discharge end 226
Rotate and be connected with end cap 24, end cap 24 is fixed in frame 21.Discharge end 226 is sheathed in end cap 24, and embedded end cap 24
The diameter path length of discharge end 226 is incrementally set away from feed end 225.The top of end cap 24 is provided with exhaust outlet 241, and lower section is provided with out
Hopper 242.
As shown in figure 1, being connected with emission-control equipment 3 on exhaust outlet 241, the emission-control equipment 3 includes setting successively
Spray adsorbent equipment 31, photodissociation equipment 32, air exhauster 33 and the chimney 34 put.
As seen in fig. 4 and 9, spray adsorbent equipment 31 includes spraying cooling cylinder 311, is arranged at the lower section of spraying cooling cylinder 311
Storage tank 312 and be arranged at storage tank 312 and spraying cooling cylinder 311 between water circulating pump 313.Exhaust outlet 241 and spray
It is connected with each other between pouring cooling cylinder 311 by exhaust passage 8；Storage tank 312 be located at spraying cooling cylinder 311 lower end and with spray
Cooling cylinder 311 is connected；Water circulating pump 313 is provided between storage tank 312 and spraying cooling cylinder 311, will by water circulating pump 313
Water in storage tank 312 is pumped to the upper end of spraying cooling cylinder 311 and discharged downwards, the waste gas in exhaust passage 8 is being increased
During contacted with water smoke so that the contamination precipitation in waste gas.The end of water circulating pump 313 is provided with shower nozzle 314, the shower nozzle
314 are located in spraying cooling cylinder 311, and shower nozzle 314 radially sprays, and enables water to more completely and exhaust gas contact.
As shown in figure 4, the output end of spraying cooling cylinder 311（Positioned at upper end）It is connected with photodissociation equipment 32, photodissociation equipment
32 output end is connected with chimney 34, and waste gas is discharged.Photodissociation equipment 32 is photodissociation oxidation equipment, utilizes high energy ultraviolet
Light beam, makes to produce a large amount of free electrons in air, and these electronics are most of obtained by oxygen, to be formed negative oxygen molecule（O3 -）, bear oxygen
Molecule is unstable, easily loses an electronics and becomes active oxygen（Ozone）, ozone as advanced oxidation agent it is oxidable decomposition have
Machine thing and inorganic matter, in the presence of ozone and negative oxygen molecule, the foul gas in waste gas is broken down into small by macromolecular substances
Molecular substance, reaches the effect of deodorization.
To improve efficiency, air exhauster 33 is provided between photodissociation equipment 32 and chimney 34, air exhauster 33 can be by exhaust passage 8
The waste gas of middle output is more drawn to water circulating pump 313 and photodissociation equipment 32.
Operation principle and process are as follows：
1st, feed hopper 42 is opened, by fuel（Biomass fuel can be used）Pour into combustion chamber 41；Pass through observed temperature meter
Temperature in 45 measurable combustion chambers 41, after certain temperature is reached, because of the inner sealing of combustion chamber 41, hot-air expands and is transferred to
In mixing drum.For the hot-air motion for making the fuel in combustion chamber 41 more completely burn and in accelerated combustion chamber 41, it can open
Air blower 47, the wind that air blower 47 is produced enters combustion chamber 41 through air-vent 461；
2nd, when temperature reaches suitable degree（300°-500°）Afterwards, reducing motor 231 is opened, Drying 22 is rotated, now
The communicated band of organic fertilizer is sent to feeding-passage 5, and is transferred to by feeding-passage 5 in Drying 22, spiral in Drying 22
The stock guide 223 of setting drives organic fertilizer to be moved to discharge end 226, and in moving process, organic fertilizer in combustion chamber 1 with passing out
Hot-air fully contact, be oven-dried fertilizer；
3rd, organic fertilizer is transferred to discharge bucket 242, and by be arranged at the conveyer belt of the lower section of discharge bucket 242 be transferred into it is next
Process；The waste gas for being transferred to end cap 24 is transferred to spraying cooling cylinder 311 through exhaust passage 8, is in contact with water smoke, in waste gas
Grain thing precipitation；
4th, waste gas is transferred to photodissociation equipment 32, and deodorization is carried out to waste gas；
5th, waste gas is discharged from chimney 34.
Described above is only preferred embodiment of the present utility model, and protection domain of the present utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to protection domain of the present utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (10)
1. a kind of drying unit, including combustion chamber（1）, dryer（2）, emission-control equipment（3）And and dryer（2）It is connected
Lead to and for being dryer（2）The heating plant of heat supply（4）, it is characterised in that：Also include spraying cooling cylinder（311）, be arranged at
Spraying cooling cylinder（311）Lower section and spraying cooling cylinder（311）The storage tank being connected（312）And it is arranged at storage tank（312）
With spraying cooling cylinder（311）Between water circulating pump（313）；The dryer（2）Including feed end（225）And discharge end
（226）, the discharge end（226）It is provided with exhaust outlet（241）, the exhaust outlet（241）With spraying cooling cylinder（311）Between lead to
Cross and be arranged at exhaust outlet（241）With spraying cooling cylinder（311）Between exhaust passage（8）Connection；Combustion chamber（1）Interior be provided with is used for
For the heating plant of dryer heat supply（4）, heating plant（4）Including the combustion chamber for placing fuel（41）, combustion chamber（41）
Top be provided with to combustion chamber（41）The feed hopper of charging（42）, feed hopper（42）It is obliquely installed, and feed hopper（42）Positioned at combustion
Burn chamber（41）Interior remote dryer（2）End；Combustion chamber（41）Side offer discharging opening（411）, discharging opening（411）On
It is provided with for controlling discharging opening（411）The discharge door of keying（43）, combustion chamber（41）Bottom offers some through holes（412）,
Through hole（412）In be installed with ventilation part（46）, ventilation part（46）It is cylindrical and positioned at combustion chamber（41）It is interior, ventilation part
（46）Upper bottom surface closing, some air-vents are offered sideways（461）, air-vent（461）It is tapered to set, and air-vent
（461）Aperture successively decrease from the inside to the outside；Combustion chamber（41）Be arranged right below air blower（47）, air blower（47）Outside around air blast
Machine（47）Provided with the bucket that keeps out the wind（48）.
2. drying unit according to claim 1, it is characterised in that：The water circulating pump（313）End be provided with shower nozzle
（314）, the shower nozzle（314）Positioned at spraying cooling cylinder（311）In.
3. drying unit according to claim 1, it is characterised in that：The spray adsorbent equipment（31）Output end on connect
It is connected to photodissociation equipment（32）.
4. drying unit according to claim 3, it is characterised in that：The photodissociation equipment（32）Output end on be connected with
Chimney（34）.
5. drying unit according to claim 4, it is characterised in that：The chimney（34）With the photodissociation equipment（32）It
Between be provided with and be used for photodissociation equipment（32）In Abgasabsaugung to chimney（34）Air exhauster（33）.
6. drying unit according to claim 1, it is characterised in that：The dryer（2）Including frame（21）, be positioned over
Frame（21）The upper Drying for being used to dry fertilizer（22）, driving Drying（22）The drive device of rotation（23）And fixed peace
Loaded on frame（21）On end cap（24）, the Drying（22）Respectively with the frame（21）With the end cap（24）The company of rotation
Connect, and the Drying（22）On be fixed with the stock guide arranged in the shape of a spiral（223）, end cap（24）Positioned at Drying（22）
Discharge end（226）And the end cap（24）Lower section be provided with discharge bucket（242）, the exhaust outlet（241）Positioned at the end cap
（24）Top.
7. drying unit according to claim 6, it is characterised in that：The discharge end（226）It is sheathed on end cap（24）It is interior.
8. the drying unit according to claim 6 or 7, it is characterised in that：The discharge end（226）Diameter path length deviate from
Feed end（225）Direction is in be incremented by form to set.
9. drying unit according to claim 6, it is characterised in that：The stock guide（223）End be fixed with and subtract
Few stock guide（223）The baffle plate that upper organic fertilizer drops（224）.
10. drying unit according to claim 6, it is characterised in that：The drive device（23）Including reducing motor
（231）, be fixedly installed in reducing motor（231）Output shaft on gear one（232）And it is fixedly installed in Drying（22）
On gear two（222）, gear one（232）With gear one（232）Intermeshing is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621389554.6U CN206399164U (en) | 2016-12-16 | 2016-12-16 | Drying unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621389554.6U CN206399164U (en) | 2016-12-16 | 2016-12-16 | Drying unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206399164U true CN206399164U (en) | 2017-08-11 |
Family
ID=59512306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621389554.6U Expired - Fee Related CN206399164U (en) | 2016-12-16 | 2016-12-16 | Drying unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206399164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017683A (en) * | 2019-03-11 | 2019-07-16 | 合肥禾源粮油有限公司 | A kind of foodstuff drying device using natural gas |
-
2016
- 2016-12-16 CN CN201621389554.6U patent/CN206399164U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017683A (en) * | 2019-03-11 | 2019-07-16 | 合肥禾源粮油有限公司 | A kind of foodstuff drying device using natural gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 Termination date: 20211216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |