CN106322975B - Small-sized warehouse style throughcirculation dryer - Google Patents
Small-sized warehouse style throughcirculation dryer Download PDFInfo
- Publication number
- CN106322975B CN106322975B CN201610832445.5A CN201610832445A CN106322975B CN 106322975 B CN106322975 B CN 106322975B CN 201610832445 A CN201610832445 A CN 201610832445A CN 106322975 B CN106322975 B CN 106322975B
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- contactor
- normally opened
- opened contact
- switch
- control circuit
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F25/00—Storing agricultural or horticultural produce; Hanging-up harvested fruit
- A01F25/14—Containers specially adapted for storing
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F25/00—Storing agricultural or horticultural produce; Hanging-up harvested fruit
- A01F25/16—Arrangements in forage silos
- A01F25/22—Ventilating arrangements
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B9/00—Preservation of edible seeds, e.g. cereals
- A23B9/08—Drying; Subsequent reconstitution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/04—Heating arrangements using electric heating
- F26B23/06—Heating arrangements using electric heating resistance heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/06—Grains, e.g. cereals, wheat, rice, corn
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental Sciences (AREA)
- Sustainable Development (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
The small-sized warehouse style throughcirculation dryer of one kind provided by the invention, the multistage storehouse cylinder including rack and fixed installation on the rack；The lower section of multistage storehouse cylinder is connected and installed with ventilation device and ozone generating-device；The ventilation device includes blower and the expansion air hose being connected to fan outlet；The expansion air hose is connect by vent hose with the bottom of multistage storehouse cylinder；The ozone generating-device is connect with blower；It further include heating device and control system；The present invention solves the problems such as oily grain crop storage facilities such as existing wheat, rice, peanut, corn uneven drying, mould and mycotoxin in storage process breed and are dry insufficient.At the same time it can also be targetedly dried according to specific weather condition, air humidity situation.The quality and time, different weather situation bring caused by greatly reducing because of the single fixation of storage condition for improving oily grain crop storage are adversely affected, are worth of widely use.
Description
Technical field
The present invention relates to a kind of small-sized warehouse style throughcirculation dryers, belong to agricultural mechanical field.
Background technique
The mode that the grain and oil crops such as wheat, rice, peanut, corn are generally used storage is stored for a long time, this will
It asks the storage facilities for long term storage to have the function of anti-corrosion, moisture-proof sterilizing sterilization, further needs exist for having good logical
Wind drying function.The storage of grain and oil crop is easy to be influenced by Changes in weather factor, especially rainy weather crop ventilation in more days
It is restricted, causes to store crop inner heat, bacteria breed crop goes rotten, and causes Crop damage.
Currently, bactericidal unit, temperature control device, protection against rodents worm device and ventilation will be separately provided in the two sides of large warehoused equipment
Drying device etc. is not easy to mechanization and is uniformly controlled regulation, while higher cost is unsuitable for the management use of small depot.At present
It is suitble to storage throughcirculation dryer that is small-sized warehouse style and integrating heating, ventilation and sterilizing function low to cope with there are no a
The capricious weather of temperature and high humility.
Summary of the invention
It is an object of the invention to: in view of the above-mentioned problems of the prior art, propose it is a kind of design more rationally, cost
Low and store function greatly improves and integrates the small-sized warehouse style throughcirculation dryer of heating, sterilization and ventilation function.
In order to reach the goals above, small-sized warehouse style throughcirculation dryer of the present invention, including rack and fixed installation
Multistage storehouse cylinder on the rack；The lower section of multistage storehouse cylinder is equipped with ventilation device and ozone generating-device；The ventilation dress
It sets including blower and the expansion air hose being connected to fan outlet；The air hose that expands is connected to the bottom of multistage storehouse cylinder；The ozone
Generating device is connected to the air inlet of blower；It is characterized by also including heating devices and control system；
The heating device includes control cabinet, upper and lower ceramic wafer and is fixed between ceramic wafer up and down and connect with control cabinet
One group of ceramic heating plate；The ceramic wafer up and down, which is fixed on, to be expanded in air hose；And the radiating surface normal direction of ceramic heating plate with
It is consistent to expand direction of ventilation in air hose；
The control system includes draught fan control circuit in parallel, ozone generation control circuit and heating control circuit；
The draught fan control circuit includes first switch button S1, the first ac contactor coil being sequentially connected in series
KM1 and the first A.C. contactor of series connection normally opened point KM1, silicon-controlled electronic pressure controller and motor out；
It includes the second switch button S2 being sequentially connected in series, the second A.C. contactor line that control circuit, which occurs, for the ozone
Enclose the first A.C. contactor normally opened contact KM1, the second A.C. contactor normally opened contact KM2, micro computer of KM2 and series connection
Time switch and quartz ampoule ozone generating-device；
The heating control circuit includes third switch button S3, the temperature control normally closed switch being sequentially connected in seriesΘ, third
Ac contactor coil KM3 and the first A.C. contactor normally opened contact KM1 of series connection, the normally opened touching of third A.C. contactor
Point KM3, solid-state voltage regulator and ceramic heating plate；
The temperature controller of the controlled termination of the solid-state voltage regulator and the second A.C. contactor normally opened contact KM3；The temperature control
The temp control switch temperature probe of device, which is located at, to be expanded at wind tube outlet center；
The control system has working condition control as follows:
First state, closure first switch button, the first ac contactor coil obtain it is electric, it is corresponding everywhere in the first exchange connect
Tentaculum normally opened contact closure, silicon-controlled electronic pressure controller obtain it is electric, motor with setting speed starting ventilation blower work；
Second state, closure first switch button and second switch button, the first ac contactor coil obtain it is electric, accordingly
Everywhere the first A.C. contactor normally opened contact be closed, silicon-controlled electronic pressure controller obtain it is electric, motor with setting speed start divulge information
Machine work；The second ac contactor coil obtains electric simultaneously, the second corresponding second A.C. contactor normally opened contact closure, by opening
Dynamic microcomputer time-controlled switch makes quartz ampoule ozone generating-device work once electrified；
The third state, closure first switch button, second switch button and third switch button, the first A.C. contactor line
Enclose electric, it is corresponding everywhere in the first A.C. contactor normally opened contact closure, silicon-controlled electronic pressure controller obtains electric, and motor is to set
Revolving speed starts ventilation blower work；The second ac contactor coil obtains electric, the second corresponding normally opened touching of second A.C. contactor simultaneously
Point closure makes quartz ampoule ozone generating-device work once electrified by starting microcomputer time-controlled switch；
And work temperature control normally closed switch do not reach setting temperature threshold keep it is normally closed, third ac contactor coil obtain it is electric,
Third A.C. contactor normally opened contact closure, solid-state voltage regulator and temperature controller obtain electric, and ceramic heating plate obtains electric fever work；Work as spy
Testing temperature reaches temperature threshold, then temperature control normally closed switch controlled switch-off, third ac contactor coil losing electricity, and ceramic heating plate stops
Fever work.
The technical solution that the present invention further limits are as follows: the bottom of multistage storehouse cylinder is equipped with punching stock supporting plate and flow perturbation fan
Piece.Turbulence blades are sufficiently mixed medium air, keep the area element air quantity in bearing material punched-plate all directions almost the same,
Solves the problems, such as level course uneven drying.
Further, the ceramic heating plate is 2 PTC ceramics fever tablets.
Further, the cooling surface area of the ceramic heating plate accounts for about the 70% of installation area of section.Medium air passes through
It can be heated properly after fever tablet.The fever tablet is precisely controlled heating power using solid-state voltage regulator and XMT Series Microprocessor Temperature Controller, full
The medium temperature demand of sufficient operation.The heating device is typically in abnormal working condition, and general weather conditions are good, and air is wet
Not high and material is spent not to be eager to be not necessarily to open in the case where rapid draing.
Further, air-break circuit-breaker QF is installed in the bus;Control electricity occurs for the draught fan control circuit, ozone
Road and heating control circuit are separately installed with QF1, QF2, QF3.
Further, the temperature controller is XMT Series Microprocessor Temperature Controller.
Beneficial effects of the present invention: the present invention solves the oily grain crop storage such as existing wheat, rice, peanut, corn and sets
The problems such as standby uneven drying, mould and mycotoxin in storage process breed and are dry insufficient.At the same time it can also basis
Specific weather condition, air humidity situation are targetedly dried.Quality and the time of oily grain crop storage are improved,
Different weather situation bring caused by greatly reducing because of the single fixation of storage condition adversely affects, and regulates and controls as needed, section
Resource-saving is worth of widely use convenient for unitized control.
Detailed description of the invention
The present invention will be further described below with reference to the drawings.
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is the schematic diagram of internal structure of multistage storehouse cylinder in Fig. 1.
Fig. 3 is the structural schematic diagram of ozone generating-device.
Fig. 4 is ceramic heating flake and the mounting structure schematic diagram for expanding air hose.
Fig. 5 is the electric operation control circuit figure of control system.
Specific embodiment
Embodiment one
The small-sized warehouse style throughcirculation dryer of the present embodiment, basic structure is as shown in Figs 1-4,
Including rack 2 and the multistage storehouse being fixedly mounted in rack 2 cylinder 1；The bottom of multistage storehouse cylinder 1 is equipped with punching stock supporting plate
7 and turbulence blades 8, the lower section of multistage storehouse cylinder 1 is connected and installed with ventilation device and ozone generating-device 4；The ventilation device packet
The expansion air hose 5 for including blower 3 and being connected to fan outlet；The air hose 5 that expands passes through the conical bottom of vent hose 6 and multistage storehouse cylinder 1
Portion's connection；The ozone generating-device 4 includes ozone generator 9 and ozone generator housing 10；The ozone generator housing
10 connect with blower 3.
The invention also includes heating devices and control system.
The heating device includes control cabinet 14, upper and lower ceramic wafer 12 and is fixed on up and down between ceramic wafer and and control cabinet
One group of PTC ceramics fever tablet 11 of connection；The ceramic wafer up and down is fixed on using metal button member 13 to be expanded in air hose 5；And ceramics
The radiating surface normal direction of fever tablet is consistent with direction of ventilation in air hose is expanded.
The control system is as shown in Figure 5: the control system includes that draught fan control circuit in parallel, ozone control
Circuit and heating control circuit；
The draught fan control circuit includes first switch button S1, the first ac contactor coil being sequentially connected in series
KM1 and the first A.C. contactor of series connection normally opened point KM1, silicon-controlled electronic pressure controller and motor out；
It includes the second switch button S2 being sequentially connected in series, the second A.C. contactor line that control circuit, which occurs, for the ozone
Enclose the first A.C. contactor normally opened contact KM1, the second A.C. contactor normally opened contact KM2, micro computer of KM2 and series connection
Time switch and quartz ampoule ozone generating-device；
The heating control circuit includes third switch button S3, the temperature control normally closed switch being sequentially connected in seriesΘ, third
Ac contactor coil KM3 and the first A.C. contactor normally opened contact KM1 of series connection, the normally opened touching of third A.C. contactor
Point KM3, solid-state voltage regulator and ceramic heating plate；
The temperature controller of the controlled termination of the solid-state voltage regulator and the second A.C. contactor normally opened contact KM3.The temperature control
The temp control switch temperature probe of device, which is located at, to be expanded at wind tube outlet center.
The control system includes following working condition:
First state, closure first switch button S1, the first ac contactor coil KM1 obtain it is electric, it is corresponding everywhere in first
The normally opened KM1 of the normally opened closing point first of A.C. contactor, the second normally opened KM1 and the normally opened KM1 main contacts closure of third, silicon-controlled electricity
Sub- pressure regulator obtains electric, adjusts silicon-controlled electronic pressure controller knob, adjusts regulator output voltage, single-phase motor is with setting speed
Starting, draft fan are started to work；
Second state, closure first switch button S1 and second switch button S2, the first ac contactor coil KM1 are obtained
Electricity, it is corresponding everywhere in the first A.C. contactor normally opened contact closure, silicon-controlled electronic pressure controller obtains electric, and motor is with setting speed
Start ventilation blower work；The second ac contactor coil KM2 obtains electric, the second corresponding second A.C. contactor normally opened contact simultaneously
Closure makes quartz ampoule ozone generating-device work once electrified by starting microcomputer time-controlled switch；And according to material mildew state, day
Gas condition design timed period, quartz ampoule ozone generating-device must electrically activate after reaching setting condition；Reach setting and shuts down condition
The power-off of quartz ampoule ozone generator, stops working.
The third state, closure first switch button S1, second switch button S2 and third switch button S3, the first exchange connect
Tentaculum coil KM1 obtain it is electric, it is corresponding everywhere in the first A.C. contactor normally opened contact closure, silicon-controlled electronic pressure controller obtains electric, electricity
Motivation is with setting speed starting ventilation blower work；The second ac contactor coil KM2 is obtained electric simultaneously, the second corresponding second exchange
Contactor normally opened contact closure makes quartz ampoule ozone generating-device work once electrified by starting microcomputer time-controlled switch；And it works
The temperature threshold that temperature control normally closed switch does not reach setting keeps normally closed, and third ac contactor coil obtains electric, third A.C. contactor
Normally opened contact closure, solid-state voltage regulator and temperature controller obtain electric, and according to the temperature value of setting, solid-state voltage regulator exports relevant voltage,
Ceramic heating plate obtains electric fever work；The medium air blown out from centrifugal blower is heated to after PTC ceramics fever tablet to be set
Fixed temperature value.The temp control switch temperature probe of temperature controller, which is located at, to be expanded at wind tube outlet center, when detection temperature reaches temperature
Threshold value is spent, then temperature control normally closed switch controlled switch-off, third ac contactor coil losing electricity, ceramic heating plate stops fever work.
Turn off the switch button S1, A.C. contactor KM1 power loss, first, second and the 3rd the contact KM1 restore normally opened shape
State, draught fan control circuit, ozone generating circuit and heating control circuit power off；Control system stops working.
Individually turn off the switch knob S2, A.C. contactor KM2 coil losing electricity, KM2 restores normally open, and when micro computer is spaced apart
Input terminal power loss is closed, quartz ampoule ozone generator stops working, and does not influence the normal work of fan circuit and heating sheet circuit.
Individually turn off the switch S3, A.C. contactor KM3 coil losing electricity, solid-state voltage regulator voltage input point and temperature controller power supply
Power loss, PTC ceramics fever tablet stop working simultaneously, do not influence the normal work of fan circuit and circuit of ozonator.
Circuit protection: the temperature detect switch (TDS) in PTC ceramics fever tablet control circuit, which plays, prevents local temperature excessively high, and prevention is drawn
Play fire.After normal starting fan circuit, it just can star circuit of ozonator and ceramic heating plate circuit, avoid
Generate the effect that fire even occurs for the damage of equipment caused by invalid ozone and heating sheet " dry combustion method ".Fan circuit is closed, ozone
Generator circuit and ceramic heating plate circuit simultaneously close off, and also play identical protective effect.
In addition to the implementation, the present invention can also have other embodiments.It is all to use equivalent substitution or equivalent transformation shape
At technical solution, fall within the scope of protection required by the present invention.
Claims (6)
1. small-sized warehouse style throughcirculation dryer, the multistage storehouse cylinder including rack and fixed installation on the rack；Multistage storehouse cylinder
Lower section ventilation device and ozone generating-device are installed；The ventilation device includes blower and the expansion that is connected to fan outlet
Air hose；The air hose that expands is connected to the bottom of multistage storehouse cylinder；The ozone generating-device is connected to the air inlet of blower；Its feature
It is: further includes heating device and control system；
The heating device include control cabinet, upper and lower ceramic wafer and be fixed between upper and lower ceramic wafer and connect with control cabinet one
Group ceramic heating plate；The ceramic wafer up and down, which is fixed on, to be expanded in air hose；And the radiating surface normal direction of ceramic heating plate and expand wind
Direction of ventilation is consistent in managing；
The control system includes draught fan control circuit in parallel, ozone generation control circuit and heating control circuit；
The draught fan control circuit includes first switch button (S1), the first ac contactor coil being sequentially connected in series
(KM1) and be connected in series the first A.C. contactor normally opened contact (KM1), silicon-controlled electronic pressure controller and motor；
It includes second switch button (S2), the second ac contactor coil being sequentially connected in series that control circuit, which occurs, for the ozone
(KM2) and the first A.C. contactor normally opened contact (KM1), the second A.C. contactor normally opened contact (KM2), micro- for being connected in series
Computer time switch and quartz ampoule ozone generating-device；
The heating control circuit include the third switch button (S3) being sequentially connected in series, temperature control normally closed switch (Θ), third
Ac contactor coil (KM3) and the first A.C. contactor normally opened contact (KM1) being connected in series, third A.C. contactor are normal
Open contact (KM3), solid-state voltage regulator and ceramic heating plate；
The temperature controller of the controlled termination third A.C. contactor normally opened contact (KM3) of the solid-state voltage regulator；The temperature controller
Temp control switch temperature probe, which is located at, to be expanded at wind tube outlet center；
The control system has working condition control as follows:
First state, closure first switch button, the first ac contactor coil obtain it is electric, it is corresponding everywhere in the first A.C. contactor
Normally opened contact closure, silicon-controlled electronic pressure controller obtain it is electric, motor with setting speed starting ventilation blower work；
Second state, closure first switch button and second switch button, the first ac contactor coil obtain it is electric, it is corresponding everywhere in
First A.C. contactor normally opened contact closure, silicon-controlled electronic pressure controller obtain it is electric, motor with setting speed start ventilation blower work
Make；The second ac contactor coil obtains electric simultaneously, corresponding second A.C. contactor normally opened contact closure, by starting micro computer
Time switch makes quartz ampoule ozone generating-device work once electrified；
The third state, closure first switch button, second switch button and third switch button, the first ac contactor coil obtain
Electricity, it is corresponding everywhere in the first A.C. contactor normally opened contact closure, silicon-controlled electronic pressure controller obtains electric, and motor is with setting speed
Start ventilation blower work；The second ac contactor coil obtains electric simultaneously, and corresponding second A.C. contactor normally opened contact closure is led to
Crossing starting microcomputer time-controlled switch makes quartz ampoule ozone generating-device work once electrified；
And temperature control normally closed switch do not reach setting temperature threshold keep it is normally closed, third ac contactor coil obtain it is electric, third exchange
Contactor normally opened contact closure, solid-state voltage regulator and temperature controller obtain electric, and ceramic heating plate obtains electric fever work；When detection temperature reaches
To temperature threshold, then temperature control normally closed switch controlled switch-off, third ac contactor coil losing electricity, ceramic heating plate stop fever work
Make.
2. small-sized warehouse style throughcirculation dryer according to claim 1, it is characterised in that:
The bottom of multistage storehouse cylinder is equipped with punching stock supporting plate and turbulence blades.
3. small-sized warehouse style throughcirculation dryer according to claim 1, it is characterised in that:
The ceramic heating plate is 2 PTC ceramics fever tablets.
4. small-sized warehouse style throughcirculation dryer according to claim 3, it is characterised in that: the heat dissipation of the ceramic heating plate
Face area accounts for about the 70% of installation area of section.
5. small-sized warehouse style throughcirculation dryer according to claim 1, it is characterised in that: be equipped with air break in bus
Device；Control circuit occurs for the draught fan control circuit, ozone and heating control circuit is separately installed with air-break circuit-breaker.
6. small-sized warehouse style throughcirculation dryer according to claim 1, it is characterised in that: the temperature controller is XMT series
Temperature controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610832445.5A CN106322975B (en) | 2016-09-19 | 2016-09-19 | Small-sized warehouse style throughcirculation dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610832445.5A CN106322975B (en) | 2016-09-19 | 2016-09-19 | Small-sized warehouse style throughcirculation dryer |
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| CN106322975A CN106322975A (en) | 2017-01-11 |
| CN106322975B true CN106322975B (en) | 2019-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610832445.5A Active CN106322975B (en) | 2016-09-19 | 2016-09-19 | Small-sized warehouse style throughcirculation dryer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108489256B (en) * | 2018-04-16 | 2023-09-29 | 扬州科润德机械有限公司 | Control system of vertical dryer and drying method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4293854A (en) * | 1979-07-30 | 1981-10-06 | Gookins William L | Monitor means and method for grain bin |
| CN1781363A (en) * | 2004-11-29 | 2006-06-07 | 李剑云 | Intelligent bathing, drying and resting room for pet |
| CN205040280U (en) * | 2015-10-14 | 2016-02-24 | 长阳清江农机制造有限公司 | Domestic multi -functional movable granary |
| CN205454721U (en) * | 2016-01-08 | 2016-08-17 | 潜山县金福农业科技有限公司 | Trichosanthes seed protection against insects storage device |
-
2016
- 2016-09-19 CN CN201610832445.5A patent/CN106322975B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4293854A (en) * | 1979-07-30 | 1981-10-06 | Gookins William L | Monitor means and method for grain bin |
| CN1781363A (en) * | 2004-11-29 | 2006-06-07 | 李剑云 | Intelligent bathing, drying and resting room for pet |
| CN205040280U (en) * | 2015-10-14 | 2016-02-24 | 长阳清江农机制造有限公司 | Domestic multi -functional movable granary |
| CN205454721U (en) * | 2016-01-08 | 2016-08-17 | 潜山县金福农业科技有限公司 | Trichosanthes seed protection against insects storage device |
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