CN101672568A - Active drying tower system - Google Patents
Active drying tower system Download PDFInfo
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- CN101672568A CN101672568A CN200910182598A CN200910182598A CN101672568A CN 101672568 A CN101672568 A CN 101672568A CN 200910182598 A CN200910182598 A CN 200910182598A CN 200910182598 A CN200910182598 A CN 200910182598A CN 101672568 A CN101672568 A CN 101672568A
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Abstract
The invention relates to an active drying tower system, belonging to the technical field of material drying. The invention is characterized by consisting of plural layers of drying discs, feeding ports, dodge gate mechanisms, stirring shafts, a motor driving device, a stirring device, circular wind outlet and inlet ports, a circular wind pipeline, a circular drying wind device, a drying cold winddevice, a material inlet and a material outlet; plural layers of drying discs with pores are fixed at equal intervals in the tower body sequentially, each feeding port is arranged on each layer of drying disc, the feeding ports are arranged in a stagger way, each feeding port is provided with each dodge gate mechanism penetrating through stirring shafts at the center of each layer of drying disc from the bottom of the tower, the motor driving device is arranged at the bottom of the tower and meshed with the bottom end of the stirring shaft, the stirring device is fixed on the stirring shaft corresponding to each layer of drying disc, the interphase drying discs on the upper side and the lower side of the tower body are provided with the circular wind outlet and inlet ports from top to bottom, all the circular wind outlet and inlet ports are connected to the circular wind pipeline, the circular wind pipeline is internally connected with the circular drying wind device of 78-82 DEG C, the drying cold wind device is connected to the drying disc of the lowest layer in the tower from bottom, the material inlet is arranged at the top of the tower body and the material outlet is arrangedat the bottom of the tower body; and the invention is favorable for reducing quantity of power consumption and steam consumption, is adaptive to mass production, is applicable for drying materials with high thermal sensitivity, and has stronger practicability.
Description
Technical field
The present invention relates to a kind of active drying tower system, be applicable to the drying of the material that thermal sensitivity is high, belong to the drying materials technical field.
Background technology
Present domestic drying plant is a lot, as pipe bundle drier, roller drier, pneumatic drier, fluid bed dryer or the like pluses and minuses is arranged respectively.Pipe bundle drier mainly is applicable to the bulk material that thermal sensitivity is low, viscosity is little.Little, the dry water evaporates amount of its floor space is big, saving steam.Roller drier is applicable to the bulk material that viscosity is big, and it yields poorly, power consumption is low, and steam consumption is big; Pneumatic drier, fluid bed dryer are applicable to the material that thermal sensitivity is high, and it yields poorly, power consumption is big, steam consumption is big.
Summary of the invention
The purpose of this invention is to provide a kind of active drying tower system; solve the existing pneumatic drier of the high drying materials of thermal sensitivity, the shortcoming that drying yields poorly, power consumption is big, steam consumption is big that fluid bed dryer exists because of its structural factor of being used for; realize dry output height by the present invention; reduce power consumption and steam consumption, adapt to large-scale production, be applicable to the drying materials that thermal sensitivity is high.
The objective of the invention is to be achieved through the following technical solutions, a kind of active drying tower system, it is characterized in that, described system is by tower body, equidistant successively fixing several layers has the basin of pore in the tower body, the feed opening of mutual dislocation is set on each layer basin, the dodge gate mechanism that is provided with on the feed opening, pass the shaft of each layer basin central authorities from the tower body bottom, the motor driver of the shaft bottom engagement of tower body bottom, the agitating device of fixing on the shaft of corresponding each layer basin, the circulated air that is provided with on the tower body of both sides about the alternate from top to bottom basin goes out, accessing port, each circulated air goes out, accessing port connects the circulated air pipeline, connect 78～82 ℃ cyclic drying wind apparatus in the circulated air pipeline, the dry cooling air unit that tower body orlop basin connects from the bottom, the discharging opening that charging aperture that the tower body top is provided with and tower body bottom are provided with constitutes.
Described basin is become by the some blocks of screens that are umbrella shape contiguous concatenation successively, the upper and lower surface of each screen is provided with some roads arc to alternate truncated cone-shaped pore from outer circumferential edge to internal circle, the both sides angle of each screen is 30 °, and wherein the position of a screen is a feed opening.
The dodge gate mechanism that is provided with on described each feed opening is by float, connecting rod, and upper and lower adjusting connecting rod has two supporting bases of rotating shaft, and circular arc door and counterweight constitute; Two supporting bases are separately fixed on the corresponding up and down tower body of basin, fix upper and lower adjusting connecting rod on two supporting bases of tower body lateral surface respectively, upper and lower adjusting connecting rod one end connects connecting rod through adjustment hole, fixing float in the rotating shaft of upper branching holder in the tower body, fixing circular arc door in the rotating shaft of lower support seat in the tower body, under regulate fixed weight on the connecting rod, the circular arc door matches with feed opening.
Fixing level sensor on the tower body inwall of described each layer basin upside, the signal external control circuit of level sensor.
Described shaft is by being interconnected to constitute with the corresponding plurality of sections of basin quantity.
Described agitating device is made of two stirring wings that are fixed on the shaft; Each stirring wing is by scraper plate, and gusset and shaft joint constitute; Scrape plate level to bending, the top fixedly gusset of scraper plate inner end portion, the common ends of scraper plate and gusset is shaft joint fixedly; The cross section of gusset is acute triangle, and an end of the base of gusset and scraper plate constitutes fixedly shaft joint of common ends; The distance of scraper plate and corresponding basin upper surface is no less than 4mm.
The cyclic drying wind apparatus is made of some temperature sensors, the pressure sensor of air cleaner, air heat exchanger, blower fan, cyclone separator and access circulated air pipeline and each region of interest of airduct; Air cleaner connects air heat exchanger through airduct, and air heat exchanger steam-out (SO) source adds hot-air, the circulated air accessing port of its outlet on circulated air pipeline and ducted pneumatic air door connection tower body; Circulated air outgoing interface on the tower body connects the import of cyclone separator through the circulated air pipeline, the outlet of cyclone separator is through circulated air pipeline jointing temp table and blower fan, fan outlet is through wind pipe and ducted pneumatic air door emptying and the connection of the pneumatic air door in circulating line circulated air pipeline, in the circulated air pipeline at circulated air import position thermometer, temperature sensor are set, the signal of this temperature sensor is through the controlling organization in lead steam-out (SO) source; Pressure gauge and pressure sensor are set, the external computer of the signal of pressure sensor in the pipeline between the circulated air pipeline at circulated air import and outlet position.
Dry cooling air unit is made of cooling blower, air cleaner, cyclone separator, pneumatic air door; Air cleaner connects air intake interface on the orlop basin downside tower body through airduct, and the air outlet on this layer basin upside tower body connects the import of cyclone separator through airduct, and the outlet of cyclone separator is through the airduct machine of giving a dinner for a visitor from afar, blower fan outlet emptying.
The multilayer basin is arranged in the drying tower of the present invention, have agitating device on each layer basin, material is delivered on the interior basin of active drying tower through conveying equipment and stirs by agitator, smooth while stirring flat, can ensure laxity and the homogeneity of material in drying tower like this, make air see through the bed of material easily.Have passage on the basin, hot-air enters by the bed of material from the bottom of basin, with material fully contact and dry zone walk moisture content.The time of staying of dried material in drying tower is one of factor that influences finished product moisture content.Bed depth in the basin can be controlled, in every layer of basin level sensor is arranged, and can regulate, when bed depth reaches the height of its setting, the bin gate of basin is opened automatically to enter down and is carried out drying in one deck basin, can regulate the time of staying of material in active drying tower automatically by the control bed depth.Continuous operation of the present invention, automaticity height, no dead angle, easy to clean.The temperature and the time of staying of material in drying tower in can strict control tower in operating process, reach drying requirement.Floor space of the present invention is little, baking temperature is low, steam consumption quantity is little, and dry output height helps reducing power consumption and steam consumption, adapts to large-scale production, is applicable to the drying materials that thermal sensitivity is high, has very strong practicality.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 embodies the perspective view of basin, agitating device and dodge gate mechanism for part tower body of the present invention;
The local structure for amplifying schematic diagram that Fig. 3 analyses and observe for the screen of forming basin among the present invention;
Fig. 4 embodies the structural representation of dodge gate mechanism, agitating device for part tower body of the present invention.
Among the figure, 1 tower body, 2 basins, 3 shafts, 4 charging apertures, 5 discharging openings, 6 motor drivers, 7 circulated air outgoing interfaces, 8 circulated air accessing ports, 9 air cleaners, 10 cyclone separators, 11 blower fans, 12 circulated air pipelines, 13 thermometers, 14 pneumatic air doors, 15 pneumatic air doors, 16 thermometers, 17 temperature sensors, 18 pneumatic air doors, 19 feed openings, 20 agitating devices, 21 dodge gate mechanisms, 22 air cleaners, 23 cyclone separators, 24 blower fans, 25 air heat exchangers, 26 top panels, 27 lower panels, 28 pores, 29 scraper plates, 30 gussets, 31 shaft joints, 32 floats, 33 connecting rods, 34 adjusted connecting rods, 35 times adjusting connecting rods, 36 supporting bases, 37 supporting bases, 38 circular arc doors, 39 counterweights, 40 Pressure gauges, 41 pressure sensors.
The specific embodiment
Further specify the present invention in conjunction with the accompanying drawings and embodiments, as Fig. 1,2, shown in 4, the present invention is by tower body 1, equidistant successively fixing several layers has the basin 2 of pore in the tower body 1, the feed opening of mutual dislocation is set on each layer basin 2, the dodge gate mechanism that is provided with on the feed opening, pass the shaft 3 of each layer basin central authorities from the tower body bottom, the agitating device of fixing on the shaft 3 of corresponding each layer basin 2, the circulated air that is provided with on the tower body of both sides about each phase interbed basin goes out from top to bottom, accessing port 7,8, each circulated air goes out, advance 7,8 interfaces connect circulated air pipeline 12, connect 78～82 ℃ cyclic drying wind apparatus in the circulated air pipeline, the dry cooling air unit that tower body orlop basin connects from the bottom, the discharging opening that charging aperture that the tower body top is provided with and tower body bottom are provided with constitutes.
One, basin
Shown in Fig. 2,4, multilayer basin 2 is arranged in the drying tower, have agitating device 20 in the basin 2, material falls on the superiors' basin 2 through the charging aperture 4 that conveying equipment is delivered to the setting of active drying tower top, stir by agitating device 20, agitating device 20 is made of two stirring wings that are fixed on the shaft 3; Each stirring wing is by scraper plate 29, and gusset 30 and shaft joint 31 constitute; Scraper plate 29 levels are to bending, the top fixedly gusset 30 of scraper plate 29 inner end portions, and the common ends of scraper plate 29 and gusset 30 is shaft joint 31 fixedly; The cross section of gusset 30 is acute triangle, and an end of the base of gusset 30 and scraper plate 29 constitutes fixedly shaft joint 31 of common ends; Scraper plate 29 is no less than 4mm with the distance of corresponding basin 2 upper surfaces.Stirring wing is smooth while stirring flat, can ensure laxity and the homogeneity of material in drying tower like this, makes air see through the bed of material easily.Shown in 2,3, basin 2 is become by the some blocks of screens that are umbrella shape contiguous concatenation successively, the upper and lower surface plate 26,27 of each screen is provided with some roads arc to alternate truncated cone-shaped pore 28 from outer circumferential edge to internal circle, and the both sides angle of each screen is 30 °, and wherein the position of a screen is a feed opening 19.Hot-air enters by the bed of material from some truncated cone-shaped pores 28 of basin 2 bottoms, with material fully contact and dry zone walk moisture content.The time of staying of dried material in drying tower is one of factor that influences finished product moisture content.Bed depth on the basin 2 can be controlled, tower body 1 inwall corresponding site on every layer of basin 2 is fixed with level sensor, and can regulate, when bed depth reaches the height of its setting, the dodge gate mechanism of basin 2 opens automatically to enter down and carries out drying on one deck basin 2, can regulate the time of staying of material in active drying tower automatically by the control bed depth.Shown in 2,4, each dodge gate mechanism is by float 32, connecting rod 33, and upper and lower adjusting connecting rod 34,35 has two supporting bases 36,37 of rotating shaft, and circular arc door 38 and balancing weight 39 constitute; Two supporting bases 36,37 are separately fixed on the corresponding up and down tower body 1 of basin 2, fix upper and lower adjusting connecting rod 34,35 respectively on two supporting bases 36,37 of tower body 1 lateral surface, upper and lower adjusting connecting rod 34,35 1 ends connect connecting rod 33 through adjustment hole, fixing float 32 in the rotating shaft of upper branching holder 36 in the tower body 1, fixing circular arc door 38 in the rotating shaft of lower support seat 37 in the tower body 1, under regulate fixed weight piece 39 on the connecting rod 35, the circular arc door matches with feed opening.
Have wave to produce under the stirring of material at stirring wing, wave promotes float and rotates, and when float turns an angle, gives circular arc door 38 by the linkage transmission of amplifying, and circular arc door 38 will be opened, and the size of opening can be regulated by linkage.Balancing weight 39 is fixed on down to be regulated on the connecting rod 35, after the bed of material reduces, will close automatically by circular arc door 38.
Two, circulated air drying device
The ability of air dried material moisture content also is subjected to the influence of two factors: the one, and the moisture content in the big more material of taking away of air circulation, air quantity is just many more, and the 2nd, the intake air temperature of air, the temperature moisture content of high evaporation more are just many more.Because heat sensitive material has strict requirement to baking temperature, need in order to reach dry moisture content requirement, under the condition that guarantees EAT, strengthen intake at baking temperature under the low-temperature condition.In technological design, consider conserve energy, reduce steam consumption quantity, the tail gas recycle recirculation when part relative humidity is not reached capacity state replenishes after the part fresh air Hybrid Heating dried material again.As shown in Figure 1, thermometer 16, temperature sensor 17 are set in the circulated air pipeline 12 at circulated air import position, the signal of this temperature sensor 17 is through the controlling organization in lead steam-out (SO) source, when temperature surpasses or during less than setting value, the steam internally piloted valve is regulated its size automatically and reached the setting requirement.The circulated air drying system comprises air cleaner 9, air heat exchanger 25, blower fan 11, cyclone separator 10, pneumatic air door 14,15 and airduct.Air is heated to about 80 ℃ by air heat exchanger 25 fin through high efficiency particle air filter 9 filtration backs and enters active drying tower, contact with material and to carry out heat exchange, the moisture content of evaporation is taken away by hot-air, part is entrained in airborne fine particle material and separates discharging through cyclone separator 10, guarantees that the tail gas dustiness is low.The do not reach capacity exhaust gas recirculation of state is regulated air circulation by pneumatic air door.Air cleaner 9 is used for the impurity of filtered air, guarantees end product quality; Air heat exchanger 25 is used to add hot-air, with air heat to required temperature; Blower fan 11 is used to provide air quantity; Cyclone separator 10 is used to collect the tiny material that is brought out by air in the drying tower, with material and air separation; Temperature sensor 17 is used to measure EAT, regulates EAT by regulating the jet chimney control valve opening; Pressure gauge 40 and pressure sensor 41 are set, the external computer of the signal of pressure sensor 41 in the pipeline between the circulated air pipeline 12 at circulated air import and outlet position.Pressure sensor 41 is used for the pressure of measuring system, Pressure gauge and pressure sensor is set, the external computer of the signal of pressure sensor in the pipeline between the circulated air pipeline at circulated air import and outlet position.
If pressure differential is too big, the expression windage is bigger, and possible bed depth increases or part sieve plate putty; The outlet 7 of circulated air on the tower body 1 is connected to the import of cyclone separator 10 through circulated air pipeline 12, and the outlet of cyclone separator 10 is connected to blower fan 11 through circulated air pipeline 12.Blower fan 11 air outlets are divided into wind pipe and circulated air pipeline 12, and portion of air directly drains into atmosphere through wind pipe, and portion of air continues to circulate in system through circulated air pipeline 12.
Three, cooling device
Dried temperature of charge is higher, if the heat of material in bag of directly packing distributes does not go out, and will influence the quality of finished product, need be cooled to normal temperature and pack.The cold wind of drying tower orlop by drying can either cool off dregs of beans and can take away a part of moisture content again, and is further dry.As shown in Figure 1, capital equipment has cooling blower 24, air cleaner 22, cyclone separator 23, air enters active drying tower body 1 after filtering through high efficiency particle air filter 22, contact with material and to carry out heat exchange, material is cooled to about the normal temperature state, be entrained in airborne fine particle material and separate discharging, guarantee that the tail gas dustiness is low through cyclone separator 23.
Claims (8)
1, a kind of active drying tower system, it is characterized in that, described system is by tower body, equidistant successively fixing several layers has the basin of pore in the tower body, the feed opening of mutual dislocation is set on each layer basin, the dodge gate mechanism that is provided with on the feed opening, pass the shaft of each layer basin central authorities from the tower body bottom, the motor driver of the shaft bottom engagement of tower body bottom, the agitating device of fixing on the shaft of corresponding each layer basin, the circulated air that is provided with on the tower body of both sides about the alternate from top to bottom basin goes out, accessing port, each circulated air goes out, accessing port connects the circulated air pipeline, connect 78～82 ℃ cyclic drying wind apparatus in the circulated air pipeline, the dry cooling air unit that tower body orlop basin connects from the bottom, the discharging opening that charging aperture that the tower body top is provided with and tower body bottom are provided with constitutes.
2, active drying tower system according to claim 1, it is characterized in that, described basin is become by the some blocks of screens that are umbrella shape contiguous concatenation successively, the upper and lower surface of each screen is provided with some roads arc to alternate truncated cone-shaped pore from outer circumferential edge to internal circle, the both sides angle of each screen is 30 °, and wherein the position of a screen is a feed opening.
3, active drying tower system according to claim 1 and 2 is characterized in that, the dodge gate mechanism that is provided with on described each feed opening is by float, connecting rod, and upper and lower adjusting connecting rod has two supporting bases of rotating shaft, and circular arc door and counterweight constitute; Two supporting bases are separately fixed on the corresponding up and down tower body of basin, fix upper and lower adjusting connecting rod on two supporting bases of tower body lateral surface respectively, upper and lower adjusting connecting rod one end connects connecting rod through adjustment hole, fixing float in the rotating shaft of upper branching holder in the tower body, fixing circular arc door in the rotating shaft of lower support seat in the tower body, under regulate fixed weight on the connecting rod, the circular arc door matches with feed opening.
4, active drying tower system according to claim 1 and 2 is characterized in that, fixing level sensor on the tower body inwall of described each layer basin upside, the signal external control circuit of level sensor.
5, active drying tower system according to claim 1 is characterized in that, described shaft is by being interconnected to constitute with the corresponding plurality of sections of basin quantity.
6, active drying tower system according to claim 1 is characterized in that, described agitating device is made of two stirring wings that are fixed on the shaft; Each stirring wing is by scraper plate, and gusset and shaft joint constitute; Scrape plate level to bending, the top fixedly gusset of scraper plate inner end portion, the common ends of scraper plate and gusset is shaft joint fixedly; The cross section of gusset is acute triangle, and an end of the base of gusset and scraper plate constitutes fixedly shaft joint of common ends; The distance of scraper plate and corresponding basin upper surface is no less than 4mm.
7, active drying tower system according to claim 1, it is characterized in that the cyclic drying wind apparatus is made of some temperature sensors, the pressure sensor of air cleaner, air heat exchanger, blower fan, cyclone separator and access circulated air pipeline and each region of interest of airduct; Air cleaner connects air heat exchanger through airduct, and air heat exchanger steam-out (SO) source adds hot-air, the circulated air accessing port of its outlet on circulated air pipeline and ducted pneumatic air door connection tower body; Circulated air outgoing interface on the tower body connects the import of cyclone separator through the circulated air pipeline, the outlet of cyclone separator is through circulated air pipeline jointing temp table and blower fan, fan outlet connects the circulated air pipeline through wind pipe and ducted pneumatic air door emptying and through the ducted pneumatic air door of circulated air, in the circulated air pipeline at circulated air import position thermometer, temperature sensor are set, the signal of this temperature sensor is through the controlling organization in lead steam-out (SO) source; Pressure gauge and pressure sensor are set, the external computer of the signal of pressure sensor in the pipeline between the circulated air pipeline at circulated air import and outlet position.
8, active drying tower system according to claim 1 is characterized in that, dry cooling air unit is made of cooling blower, air cleaner, cyclone separator, pneumatic air door; Air cleaner connects air intake interface on the orlop basin downside tower body through airduct, and the air outlet on this layer basin upside tower body connects the import of cyclone separator through airduct, and the outlet of cyclone separator is through the airduct machine of giving a dinner for a visitor from afar, blower fan outlet emptying.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910182598XA CN101672568B (en) | 2009-09-17 | 2009-09-17 | Active drying tower system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910182598XA CN101672568B (en) | 2009-09-17 | 2009-09-17 | Active drying tower system |
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| CN101672568A true CN101672568A (en) | 2010-03-17 |
| CN101672568B CN101672568B (en) | 2011-04-13 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106315045A (en) * | 2016-08-26 | 2017-01-11 | 湖南三路面机械有限公司 | Feeding device and drying equipment thereof, and asphalt mixing plant |
| CN108224930A (en) * | 2018-01-09 | 2018-06-29 | 广东环葆嘉节能科技有限公司 | Single cycle wind turbine hot air drying system |
| CN109959218A (en) * | 2019-03-19 | 2019-07-02 | 成都珪一食品开发股份有限公司 | A kind of Chinese prickly ash mentions dew, furnace drying method and device |
| CN112902571A (en) * | 2021-01-26 | 2021-06-04 | 黄涛 | Hot-blast cabinet for pharmaceutical equipment that possesses air purification function |
| CN113826757A (en) * | 2021-08-12 | 2021-12-24 | 陕西杨凌富仕特生物科技有限公司 | Yeast culture rich in active probiotics, preparation method and special equipment thereof |
| CN114353499A (en) * | 2022-02-10 | 2022-04-15 | 安徽海蓝生物科技有限公司 | Fluidized bed for biological preparation of L-tartaric acid and preparation process thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2807167Y (en) * | 2005-07-01 | 2006-08-16 | 刘树青 | Current and countercurrent type grain drying tower |
| CN200940993Y (en) * | 2006-08-29 | 2007-08-29 | 江苏牧羊集团有限公司 | Material changeover apparatus |
| CN201476495U (en) * | 2009-09-17 | 2010-05-19 | 江苏牧羊迈安德食品机械有限公司 | Active-mode drying tower system |
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2009
- 2009-09-17 CN CN200910182598XA patent/CN101672568B/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106315045A (en) * | 2016-08-26 | 2017-01-11 | 湖南三路面机械有限公司 | Feeding device and drying equipment thereof, and asphalt mixing plant |
| CN108224930A (en) * | 2018-01-09 | 2018-06-29 | 广东环葆嘉节能科技有限公司 | Single cycle wind turbine hot air drying system |
| CN108224930B (en) * | 2018-01-09 | 2023-10-20 | 广东环葆嘉节能科技有限公司 | Hot air drying system of single-circulation fan |
| CN109959218A (en) * | 2019-03-19 | 2019-07-02 | 成都珪一食品开发股份有限公司 | A kind of Chinese prickly ash mentions dew, furnace drying method and device |
| CN109959218B (en) * | 2019-03-19 | 2020-09-08 | 四川丁点儿食品开发股份有限公司 | Pepper dew extraction and drying method and device |
| CN112902571A (en) * | 2021-01-26 | 2021-06-04 | 黄涛 | Hot-blast cabinet for pharmaceutical equipment that possesses air purification function |
| CN113826757A (en) * | 2021-08-12 | 2021-12-24 | 陕西杨凌富仕特生物科技有限公司 | Yeast culture rich in active probiotics, preparation method and special equipment thereof |
| CN113826757B (en) * | 2021-08-12 | 2024-03-26 | 陕西杨凌富仕特生物科技有限公司 | Yeast culture rich in active probiotics, preparation method and special equipment thereof |
| CN114353499A (en) * | 2022-02-10 | 2022-04-15 | 安徽海蓝生物科技有限公司 | Fluidized bed for biological preparation of L-tartaric acid and preparation process thereof |
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|---|---|
| CN101672568B (en) | 2011-04-13 |
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Owner name: JIANGSU MYANDE FOOD MACHINERY COMPANY LTD. Free format text: FORMER NAME: JIANGSU MUYANG MYANDE FOOD MACHINERY CO., LTD. |
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