CN116336750A - Fan air guide device of high-speed wire air-cooled roller way - Google Patents
Fan air guide device of high-speed wire air-cooled roller way Download PDFInfo
- Publication number
- CN116336750A CN116336750A CN202310116392.7A CN202310116392A CN116336750A CN 116336750 A CN116336750 A CN 116336750A CN 202310116392 A CN202310116392 A CN 202310116392A CN 116336750 A CN116336750 A CN 116336750A
- Authority
- CN
- China
- Prior art keywords
- air
- fan
- wind
- roller way
- speed
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 claims description 21
- 230000001502 supplementing effect Effects 0.000 claims description 13
- 238000007664 blowing Methods 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 229910000831 Steel Inorganic materials 0.000 description 14
- 239000010959 steel Substances 0.000 description 14
- 229910052742 iron Inorganic materials 0.000 description 8
- 230000003014 reinforcing effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/045—Air flow control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/04—Charging, supporting, and discharging the articles to be cooled by conveyors
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a fan air guide device of a high-speed air-cooled roller way, wherein a plurality of main air channels are vertically arranged below the roller way, the side edges of the main air channels are connected with side air channels, and the lower ends of the side air channels are connected with a fan.
Description
Technical Field
The invention relates to the technical field of coil production equipment, in particular to a fan air guide device of a high-speed wire air-cooled roller way.
Background
In the coil production process, the steel bars are uniformly scattered on the roller way after being discharged from the wire discharge machine and are spirally arranged, and because the temperature of the steel bars is too high at this time, in order to obtain proper crystals, the steel bars on the roller way need to be forced to be air-cooled, and the cooled spiral steel bar coils fall into the coil collecting device to collect and convey the steel bars.
The existing high-line air-cooled roller way is generally shown in fig. 1, an exhaust fan is arranged below the roller way, air inlets of the fans are all vertically arranged towards the roller way, air flows generated by the fans are blown to the roller way, and steel bar coils on the roller way are rapidly cooled. However, as the air blowing openings of the fans are vertically arranged all the time, sundries such as iron sheets and broken stones generated in the conveying process of the coil are easy to fall into the fans along the air blowing openings, and the fan blades are easy to smash, so that the service life of the fans is shortened, the replacement frequency of the fan blades is increased, the normal running of heat dissipation work of the coil is affected, the working efficiency is reduced, the investment of cost is increased, and the economic benefit is poor.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the fan air guide device of the high-speed wire air-cooled roller way, which changes the air guide channel of the fan and effectively prevents sundries such as iron sheets, broken stones and the like on the roller way from falling into fan smashing blades under the condition of not reducing the normal air cooling effect of the steel bar coil.
According to the first aspect of the invention, a fan air guide device of a high-speed air cooling roller way is provided, a plurality of main air channels are vertically arranged below the roller way, side air channels are communicated with the side edges of the main air channels, the side air channels are obliquely upwards arranged, and the lower ends of the side air channels are connected with a fan.
Through this scheme, the produced air current of fan gets into the main air duct from the side air duct, according to Bernoulli's principle, the velocity of flow of gas is bigger, the pressure is littleer, the gas velocity of flow on main air duct upper portion is greater than the gas velocity of flow of lower part this moment, the pressure on upper portion is less than the pressure of lower part, according to the difference of pressure between the two, external air current is inhaled from the bottom of main air duct, thereby the amount of wind on main air duct upper portion has been increaseed, the cooling effect to the reinforcing bar roll on the roll table has been improved, simultaneously when there are debris such as iron sheet, rubble on the roll table, can fall along the main air duct, avoid smashing the flabellum of damaging the fan, guarantee the normal operating of fan, the life of fan has been improved.
Optionally, a plurality of side air ducts are provided around the main air duct.
Through this scheme, the setting in a plurality of side wind channels has increaseed the amount of wind that main wind channel upper portion blown out, plays better cooling effect to the reinforcing bar volume.
Optionally, a basket is arranged right below the main air duct.
Through this scheme, connect the setting of basket, can in time receive debris such as iron sheet, rubble of whereabouts, be convenient for collect in a centralized way, centralized processing.
Optionally, the main air duct includes wind gathering portion and air compensating portion, wind gathering portion installs the top of air compensating portion, the diameter of wind gathering portion is less than air compensating portion, wind gathering portion with air compensating portion smooth transitional coupling, the upper portion of wind gathering portion is provided with the blowing mouth.
Through this scheme, gather the diameter of wind portion and be less than the air supply portion, when the amount of wind is the same, the diameter is less, and the velocity of flow of gas is faster, and the intensity of pressure is less, and external air current gets into the wind portion that gathers along the air supply portion, has further increaseed the amount of wind of gathering the wind portion, has improved the radiating effect.
Optionally, the side air duct is connected with the wind gathering part.
Through this scheme, the air current that the fan blown out directly gets into the portion of gathering wind, because the cross-section of gathering the wind portion is little, and the velocity of flow of gas will accelerate to the amount of wind that main wind channel blown out has been increaseed.
Optionally, the side air duct is connected with the top of the air supplementing part.
Through this scheme, the top of air supply portion is connected with gathers wind portion, and the air current that the fan blown out can get into gathers wind portion fast, because gather the cross-section of wind portion little, the velocity of flow of gas will accelerate to the amount of wind that main wind channel blown out has been increaseed.
Optionally, the air blowing port is horn-shaped.
Through this scheme, the design of the horn shape of blast gate not only can play a better guide effect, but also has enlarged refrigerated area for the cooling rate of reinforcing bar book has improved the cooling effect.
Optionally, the main air duct is a straight cylinder, and the main air duct is fixedly installed on the support frame.
Through the scheme, the top of the main air duct is opened, so that air flow generated by the fan can be conveniently blown to the roller way, and the cooling effect on the steel bar roll on the roller way is improved; the bottom of the main air duct is provided with an opening, so that external air flow can enter conveniently, and the air quantity blown to the roller way is increased.
According to the embodiment of the disclosure, the fan air guide device of the high-speed air-cooled roller way not only increases the air quantity blowing to the roller way and quickens the cooling speed of the steel bar roll on the roller way, improves the cooling effect, but also can prevent sundries such as iron sheets, broken stones and the like on the roller way from falling down to injure the fan blades of the fan, ensures the normal operation of the fan and prolongs the service life of the fan.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic diagram of a structure of the background art.
Fig. 2 is a schematic side view of a fan air guiding device of the high-speed air-cooled roller table in the invention.
Fig. 3 is a schematic structural diagram of a fan air guiding device in the first embodiment.
Fig. 4 is a schematic structural diagram of a fan air guiding device in the second embodiment.
Fig. 5 is a schematic structural diagram of a basket according to the second embodiment.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Example 1
As shown in fig. 2 to 3, in the fan air guiding device of the high-speed air cooling roller way in this embodiment, a plurality of main air channels 2 are vertically arranged below the roller way 1, the main air channels 2 are arranged close to the bottom of the roller way 1, side air channels 3 are communicated with the side edges of the main air channels 2, the side air channels 3 are obliquely upwards arranged, the lower end of the side air channels 3 is connected with a fan 4, and the fan 4 in this embodiment is a centrifugal fan.
The air flow generated by the fan 4 enters the main air duct 2 from the side air duct 3, the larger the flow speed of the air is according to the Bernoulli principle, the smaller the pressure intensity is, the higher the flow speed of the air at the upper part of the main air duct 2 is larger than the flow speed of the air at the lower part, the higher the pressure intensity is smaller than the lower pressure intensity, and according to the pressure difference between the two, the outside air flow is sucked from the bottom of the main air duct 2, so that the air quantity of the upper part of the main air duct 2 is increased, the cooling effect on a steel bar roll on the roller way 1 is improved, meanwhile, when sundries such as iron sheets, broken stones and the like exist on the roller way 1, the air can fall along the main air duct 2, the fan blades of the cold machine 4 are prevented from being smashed, the normal operation of the fan 4 is ensured, and the service life of the fan 4 is prolonged.
Further, a plurality of side air channels 3 are disposed around the main air channel 2, and in this embodiment, two side air channels 3 are provided, and both side air channels 3 are communicated with the main air channel 2.
The arrangement of the side air channels 3 increases the air quantity blown out from the upper part of the main air channel 2, and has better cooling effect on the steel bar coil.
Further, the top and the bottom of the main air duct 2 are both open, the main air duct 2 is fixedly installed on the supporting frame 5, and the supporting frame 5 is arranged to lift the whole main air duct 2, so that external air flow is facilitated to enter the bottom of the main air duct 2, the air quantity blown out of the whole main air duct 2 is integrally increased, and the cooling effect on the steel bar coil is improved.
The top of the main air duct 2 is opened, so that air flow generated by the fan 4 can be conveniently blown to the roller way 1, and the cooling effect on the steel bar roll on the roller way 1 is improved; the bottom of the main air duct 2 is provided with an opening, so that external air flow can enter conveniently, and the air quantity blown to the roller way 1 is increased.
Example two
As shown in fig. 4 to 5, in the fan wind guiding device of the high-speed air-cooled roller table in the first embodiment, the main air duct 2 includes a wind collecting portion 21 and a wind supplementing portion 22, the wind collecting portion 21 is installed above the wind supplementing portion 22, the diameter of the wind collecting portion 21 is smaller than that of the wind supplementing portion 22, the wind collecting portion 21 is in smooth transition connection with the wind supplementing portion 22, and the wind blowing port 7 is provided at the upper portion of the wind collecting portion 21.
The diameter of the wind gathering part 21 is smaller than that of the wind supplementing part 22, when the air quantity is the same, the smaller the diameter is, the faster the air flow speed is, the smaller the pressure is, and the outside air flow enters the wind gathering part 21 along the wind supplementing part 22, so that the air quantity of the wind gathering part 21 is further increased, and the heat dissipation effect is improved.
Further, the side duct 3 is connected to the wind collecting portion 21.
The air flow blown by the fan 4 directly enters the air collecting part 21, and the air flow speed is accelerated due to the small section of the air collecting part 21, so that the air quantity blown by the main air duct 2 is increased.
Further, the side air duct 3 may be connected to the top of the air supply portion 22.
The top of the air supplementing part 22 is connected with the air collecting part 21, and the air flow blown out by the fan 4 can quickly enter the air collecting part 21, and the air flow speed is accelerated due to the small section of the air collecting part 21, so that the air quantity blown out by the main air duct 2 is increased.
Further, a receiving basket 6 is arranged right below the main air duct 2.
The basket 6 can timely receive sundries such as falling iron sheets, broken stones and the like, and is convenient for centralized collection and centralized treatment.
Further, the air blowing opening 7 is horn-shaped.
The design of 7 loudspeaker type of blowing mouth not only can play a better guide effect, but also has enlarged refrigerated area for the cooling rate of reinforcing bar book has improved the cooling effect.
The working principle of this embodiment is as follows:
during the use, install a plurality of main wind channels 2 in the below of roll table 1 to be connected with a plurality of side wind channels 3 around the wind gathering part 21 of main wind channel 2, the below of side wind channel 3 is connected with fan 4, and the air current that fan 4 produced directly gets into wind gathering part 21 through side wind channel 3, because wind gathering part 21's cross-section is little, the air velocity of getting into wind gathering part 21 will accelerate, the pressure in the wind gathering part 21 diminishes simultaneously, and external air current is inhaled in the wind gathering part 21, because blow wind gap 7 loudspeaker type, then further increased the amount of wind that wind gathering part 21 blows out, promoted the cooling radiating effect to the reinforcing bar volume on roll table 1.
According to the embodiment of the disclosure, the fan air guide device of the high-speed air-cooled roller way not only increases the air quantity blowing to the roller way and quickens the cooling speed of the steel bar roll on the roller way, improves the cooling effect, but also can prevent sundries such as iron sheets, broken stones and the like on the roller way from falling down to injure the fan blades of the fan, ensures the normal operation of the fan and prolongs the service life of the fan.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (8)
1. The utility model provides a fan wind-guiding device of high-speed wire forced air cooling roll table, its characterized in that, roll table (1) below is provided with a plurality of main wind channel (2) perpendicularly, the side intercommunication of main wind channel (2) has side air flue (3), side air flue (3) slope upwards arranges, the lower extreme of side air flue (3) is connected with fan (4).
2. Fan air guide device for high-speed wind-cooled roller tables according to claim 1, characterized in that several side wind channels (3) are arranged around the main wind channel (2).
3. The fan air guide device of the high-speed air-cooled roller way according to claim 1, wherein a basket (6) is arranged right below the main air duct (2).
4. The fan air guide device of the high-speed air cooling roller way according to claim 1, wherein the main air duct (2) comprises an air collecting part (21) and an air supplementing part (22), the air collecting part (21) is arranged above the air supplementing part (22), the diameter of the air collecting part (21) is smaller than that of the air supplementing part (22), the air collecting part (21) is in smooth transition connection with the air supplementing part (22), and an air blowing port (7) is arranged on the upper part of the air collecting part (21).
5. Fan air guide device for high-speed wind-cooled roller tables according to claim 4, characterized in that the side wind channels (3) are connected with the wind gathering parts (21).
6. The fan air guide device of the high-speed air-cooled roller way according to claim 4, wherein the side air channel (3) is connected with the top of the air supplementing part (22).
7. The fan air guiding device of the high-speed air-cooled roller way according to claim 4, wherein the air blowing port (7) is a horn type.
8. The fan air guide device of the high-speed air-cooled roller way according to claim 1, wherein the main air duct (2) is a straight cylinder, and the main air duct (2) is fixedly installed on the supporting frame (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310116392.7A CN116336750A (en) | 2023-02-15 | 2023-02-15 | Fan air guide device of high-speed wire air-cooled roller way |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310116392.7A CN116336750A (en) | 2023-02-15 | 2023-02-15 | Fan air guide device of high-speed wire air-cooled roller way |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116336750A true CN116336750A (en) | 2023-06-27 |
Family
ID=86881338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310116392.7A Pending CN116336750A (en) | 2023-02-15 | 2023-02-15 | Fan air guide device of high-speed wire air-cooled roller way |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116336750A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2090927U (en) * | 1991-04-12 | 1991-12-18 | 傅仲炎 | Inclined blast pipe |
| KR20120056170A (en) * | 2010-11-24 | 2012-06-01 | 주식회사 포스코 | Apparatus and Method for Cooling Wire-rod Coil |
| KR20120058260A (en) * | 2010-11-29 | 2012-06-07 | 주식회사 포스코 | Apparatus and Method for Cooling Wire-rod Coil |
| CN105436214A (en) * | 2014-08-27 | 2016-03-30 | 宝山钢铁股份有限公司 | Wire rod edge cooling device and wire rod edge cooling method |
| CN206701955U (en) * | 2017-05-11 | 2017-12-05 | 河钢股份有限公司 | A kind of air-cooled roller-way air inlet locking device of high line |
| CN213887605U (en) * | 2020-11-30 | 2021-08-06 | 重庆钢铁股份有限公司 | Wire air cooling device |
-
2023
- 2023-02-15 CN CN202310116392.7A patent/CN116336750A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2090927U (en) * | 1991-04-12 | 1991-12-18 | 傅仲炎 | Inclined blast pipe |
| KR20120056170A (en) * | 2010-11-24 | 2012-06-01 | 주식회사 포스코 | Apparatus and Method for Cooling Wire-rod Coil |
| KR20120058260A (en) * | 2010-11-29 | 2012-06-07 | 주식회사 포스코 | Apparatus and Method for Cooling Wire-rod Coil |
| CN105436214A (en) * | 2014-08-27 | 2016-03-30 | 宝山钢铁股份有限公司 | Wire rod edge cooling device and wire rod edge cooling method |
| CN206701955U (en) * | 2017-05-11 | 2017-12-05 | 河钢股份有限公司 | A kind of air-cooled roller-way air inlet locking device of high line |
| CN213887605U (en) * | 2020-11-30 | 2021-08-06 | 重庆钢铁股份有限公司 | Wire air cooling device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206782689U (en) | A kind of cooled elevator | |
| CN116336750A (en) | Fan air guide device of high-speed wire air-cooled roller way | |
| CN106946000A (en) | A kind of cooled elevator | |
| CN201292423Y (en) | Staple cotton knot screen | |
| CN214881745U (en) | Water circulation cooling device for steel production | |
| CN210856425U (en) | Easy-to-maintain short fiber spinning cooling device | |
| CN209986199U (en) | Casting and pressing piece cooling device | |
| CN208055539U (en) | A kind of cotton-wool reclaimer for fly frame | |
| CN102974626A (en) | High-efficiency and high-strength air cooling method and device of high-speed wire rod | |
| CN205676567U (en) | Spinning-drawing machine constant-temperature cooling device | |
| CN215481530U (en) | Water-cooled elasticizer | |
| CN211876172U (en) | Air outlet swing blade, air conditioner and air outlet structure thereof | |
| CN211972129U (en) | Cooling device with temperature control function for glass production | |
| CN212734709U (en) | Welded tube mill that radiating effect is good | |
| CN208561267U (en) | Silk cutting machine | |
| CN211255847U (en) | Novel environment-friendly clean type coal semi-finished product cooling tower | |
| CN210861898U (en) | Food cooling device | |
| CN208302843U (en) | A kind of rice cooling device for processing | |
| CN207362372U (en) | A kind of slices synthesis method drying equipment | |
| CN201219388Y (en) | Production facility for pulverizing plant material | |
| CN105970362A (en) | Raw cotton impurity separating device | |
| CN110878953A (en) | Oil net structure and range hood | |
| CN218059318U (en) | Terylene nascent fiber cooling device | |
| CN216717064U (en) | Intelligent tea leaf cooling winnowing machine | |
| CN210112635U (en) | Quick cooler after tea wrap |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |