CN2502218Y - Rice drying unit - Google Patents
Rice drying unit Download PDFInfo
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- CN2502218Y CN2502218Y CN 01263130 CN01263130U CN2502218Y CN 2502218 Y CN2502218 Y CN 2502218Y CN 01263130 CN01263130 CN 01263130 CN 01263130 U CN01263130 U CN 01263130U CN 2502218 Y CN2502218 Y CN 2502218Y
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Abstract
The utility model relates to a rice drying unit which belongs to the technical field of drying apparatus. The utility model essentially consists of a hoisting machine, a drying mechanism and an air supply system. Rice enters into the drying mechanism from a feed mechanism and moves from up to down by the gravity of self to realize rice drying in movement matching with the air supply system. The utility model aims at the characteristic of rice to leave enough time for water in grain and make the channel of water vaporizing expand and dredge to be convenient for transfer of water in rice. Simultaneously, temperature at the surface grain transfers to middle to eliminate that grain produces stress concentration because of difference in temperature and avoids cracked rice.
Description
The utility model relates to the plant equipment to rice drying, belongs to the technical field of dryer.
The dryer that is used for rice drying now is transformed by being used for kind of sub-industry and other grain drying machine basically, mostly adopts the following current oven dry, the adverse current cooling.Owing to adopt following current form oven dry paddy, the paddy that high-temperature hot-air and temperature are lower at first contacts, exist the temperature difference bigger, be to take away moisture content greatly, but, composition (moisture content of paddy is divided into the free water and the inner crystallization water of appearance) from paddy institute water content, the moisture content of being taken away is outside free water, can cause rice drying too fast, the grain surface may form gluey scleroma because temperature is too high, and this has hindered the transfer of grain internal moisture to outer surface on the one hand, also can make the grain internal temperature too high, cause steam inside to press liter, when interior voltage rise is extremely enough big, just be easy to generate quick-fried waist.As in drying course, not having tempering or tempering deficiency of time, can not guarantee that the water evaporates passage in the grain is unimpeded all the time, internal moisture shifts to the surface and is hindered, this moment is as drying or cooling off, the inside and outside pressure reduction of grain will be strengthened, produce penetrating crack, be easy to form quick-fried waist or rice husk and in mechanicalness is peeled off, form and crack rice, influence the oven dry quality of paddy.
The purpose of this utility model is that design a kind ofly can be carried out the rice drying unit of drying dewatering at the characteristics of paddy, reduces quick-fried waist phenomenon, improves oven dry back rice quality.
The utility model mainly is made up of elevator, drying mechanism, air feed system.
Paddy enters drying mechanism by feeding mechanism, relies on the gravity of self slowly to move from top to bottom, is cooperated by air feed system, realizes rice drying in moving.
The utility model also is provided with online omnidistance monitoring and automatic control system, comprise the testing agency that is arranged in elevator, drying mechanism, air feed system, be connected to PLC controller and human-computer dialogue touch-screen on elevator, drying mechanism, the air feed system circuit, be provided with frequency converter in the air-heater control circuit in air feed system.To the having related parameter to carry out online detection and utilize to detect data and carry out Automatic Control of rice drying process precipitation, realize intelligently, can control the quality of oven dry back paddy effectively.
Drying mechanism comprises support and casing, the charging aperture that is connected with the elevator outlet is offered on casing top, discharging opening is offered in the casing bottom, in shell, from top to bottom arrange the charging layer, preliminary heating zone, the tempering layer, baking zone, the tempering layer, the cooling and drying layer, the tempering layer, the normal temperature cooling layer, the discharge layer, the outlet of discharge layer connects triple valve, the two ends in addition of triple valve connect the charging aperture of discharge nozzle and elevator respectively, air feed system is connected to preliminary heating zone respectively by airduct, baking zone, the cooling and drying layer, preliminary heating zone, baking zone, the air inlet of cooling and drying layer is provided with the temperature monitoring probe respectively, and the normal temperature cooling layer is provided with the cold wind air inlet.
Drying medium is divided into four sections in machine.First section is the pre-heating temperature elevation section, to just entering the paddy pre-heating temperature elevation of drying mechanism.Second section is dry precipitation section, and oven dry and tempering are arranged.The 3rd section is the cooling cooling section, has and lower the temperature and tempering.The 4th section is the normal temperature cooling section, and normal temperature air flows from bottom to top, and grain flows from top to bottom.
Owing to be provided with warm-up phase, activate the passage that the grain internal moisture shifts to the surface, be provided with the multistage tempering stage, make the interior moisture content of grain have time enough to shift to appearance, grain internal and external temperature moisture content tends to balance, and avoids the grain inside and outside differential pressure excessive, help drying fully from the inside to the outside paddy, reduce quick-fried waist or rice husk and in mechanicalness is peeled off, form the phenomenon of cracking rice, improve the uniformity of oven dry, improve the oven dry quality of paddy.Simultaneously, connect diversion three-way, after grain reaches drying requirement, allow outside the grain discharge machine, form an end and advance grain, the Sequential Production of other end row grain at the discharge layer; If the moisture content of grain does not reach drying requirement, the return flow line of diversion three-way is opened, allow grain return the charging aperture of elevator, enter the drying mechanism oven dry once more.
At the charging layer overfall is set, and is connected to the charging aperture of feeding mechanism by return duct.After paddy is filled the charging layer, unnecessary grain can be returned the elevator grain-entering mouth by this passage, make the paddy in the machine be in the state of buying securities with all one's capital, satisfy the condition of work of dryer, prevent that simultaneously paddy from piling up in the charging layer, influence the operate as normal of other parts.
Preliminary heating zone is provided with two-layer at least staggered horn shape box, and the blast pipe of preliminary heating zone is connected with the discharge pipe of baking zone, and the air inlet of preliminary heating zone is provided with the humidity detection probe.With " waste gas " that baking zone is discharged, introduce preliminary heating zone through airduct, to the abundant heat temperature raising of the paddy in this layer, the waste heat that utilizes oven dry " waste gas " is to just entering the paddy pre-heating temperature elevation of dryer by the horn shape box.The relative humidity of " waste gas " is bigger, and the moisture content of taking away from paddy is few, and main effect is that paddy is heated.Paddy is bigger in relative humidity, there is " waste gas " of uniform temperature (low temperature relatively) to act on " sweating " down, " sweating " of paddy makes its water evaporates passage expansion, mediation, be convenient to the transfer of moisture content in the paddy, allow the temperature on grain top layer shift simultaneously to the middle part, eliminate grain and concentrate, avoid the quick-fried waist of paddy because of temperature difference existence produces stress.
Baking zone is provided with air inlet horn shape box and the exhaust horn shape box that netted open-end hole is offered in both sides, air inlet horn shape box and exhaust horn shape box interlaced arrangement.Grain flows from top to bottom in the horn shape box outside, and the drying medium lateral flow flows out from a netted horn shape box, passes the grain layer and enters in another netted horn shape box, and come together in the airduct of side.By changing the order that air-flow enters netted horn shape box; thereby change the flow direction (forward and reverse) of medium in machine; reach the purpose that makes the paddy thermally equivalent; simultaneously; the flow trace of paddy in drying mechanism is vertical basically; this helps the grain layer and evenly descends, and makes the dry precipitation time basically identical of paddy in machine.
Now further specify embodiment in conjunction with the accompanying drawings.
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is technological process and control schematic diagram.
The casing of drying mechanism of the present utility model adopts all-metal modular construction, is convenient to large-scale production, and is easy to on-the-spot Installation and Debugging.Be divided into 10 layers, that is, and charging layer 4, preliminary heating zone 6, baking zone () 8, tempering layer 10, baking zone (two) 11, tempering layer 13, cooling and drying layer () 14, cooling and drying layer (two) 16, discharge layer 19 adds a base 22, each layer is all independent relatively, can become an integral body or split the on-the-spot assembling in back in shop assembled, use Bolt Connection between layer and the layer, simple, convenient, safety, reliable.
The charging aperture of the discharging opening of elevator 1 upper end and charging layer 4 one side top connects, and elevator 1 lower end connects triple valve 3, and an interface of triple valve 3 connects an outlet of discharge layer 19.
Top layer is a charging layer 4, above interior the layout is the drapery panel of open type, two edges of the length direction of drapery panel are set to have the outside flanging of certain angle, the bottom has the discharging square hole of different area in an orderly manner, is arranged in area near the discharging square hole of charging aperture by a certain percentage less than the discharging square hole area away from charging aperture.One end of bipacking-auger is connected on the front side board of charging layer 4, also be provided with sprocket wheel, chain and regulating wheel on its outer panel, and link to each other with elevator, the other end of bipacking-auger is connected on the side plate of rear end of charging layer 4, bipacking-auger is done running in opposite directions during running, and the blade of bipacking-auger is made as left and right sides rotation direction respectively.Charging layer 4 is offered overfall 5 away from the other end of charging aperture, and is connected to the charging aperture of elevator 1 with return duct.Make paddy enter the back and evenly distribute, unnecessary paddy can be returned the elevator charging aperture by overfall after filling.
The second layer is a preliminary heating zone 6, and both sides connect air inlet pipe and blast pipe respectively, in adorn four layers of staggered horn shape box (one) 7, horn shape box (two) 15, lower floor feeds oven dry " waste gas ", hot blast " waste gas " is discharged on the upper strata.
The 3rd layer of top is the tempering layer, and the bottom is a forward crossing current baking zone () 8.Arrange the horn shape box 9 that netted open-end hole is offered in row both sides in the crossing current baking zone () 8, the horn shape box interlaced arrangement of the horn shape box of air inlet and exhaust, both sides are arranged air inlet pipe and blast pipe respectively.
The 4th layer is tempering layer 10.
The blast pipe of the 3rd layer the crossing current baking zone () 8 and the crossing current baking zone (two) 11 of layer 5 is connected with the air inlet pipe of preliminary heating zone 6.
The 8th layer is cooling and drying layer (two) 16.The horn shape box on top is arranged identical with cooling and drying layer () 14.The bottom is the tempering layer.
The 9th layer is normal temperature cooling layer 18, in adorn four layers of staggered horn shape box (one) 7, horn shape box (two) 15, both sides are respectively air inlet pipe and blast pipe.
The tenth layer is the discharge layer.Hopper frame and blow-off valve 20 are installed in top, and the bottom is a discharging auger 21.The flute profile draining crop mechanism is housed in the blow-off valve, flight is housed on it.When the flute profile grain discharging wheel rotates, have a constant volume grain to discharge, and flight can impose and copy to the grain layer, prevent the knot arch.Grain can evenly be discharged continuously.
Wind net in the utility model comprises low temperature wind net, cooling air net.
The high-temperature hot-air that is provided by hot-air system is mixed into the low temperature hot blast with extraneous cold wind in blender.The low temperature hot blast enters the air channel by crossing current baking zone (), (two) 8,11 air inlet pipe, enter the collection air channel by escape pipe after being horizontally through the grain layer of perpendicular flow, enter the air inlet pipe of preliminary heating zone then, from bottom to top the grain that from up to down flows is carried out pre-heating temperature elevation.Outside last drying " waste gas " the blower fan discharge machine.
Process for cooling behind the rice drying adopts secondary cooling cooling and the cooling of one-level normal temperature adverse current.When grain after secondary crossing current oven dry, the grain temperature raises, if normal temperature cooling immediately can make the temperature difference of grain top layer and core increase, easily produces the phenomenon of cooling off quick-fried waist.So in the design of cooling air net, increased secondary cooling process for cooling.First order cooling cooling is to allow the small part hot blast mix in blender with most of extraneous cold wind, and the generation temperature is less than 45 ℃ mixing air.Second level cooling cooling is to allow the hot blast of less amount mix in blender with extraneous cold wind, produces to be lower than 35 ℃ mixing air.Use extraneous cold air at last, grain is further cooled, the temperature of discharging dryer grain is reduced, reach required standard, prevent the quick-fried waist of cooling behind the grain heat-drying.
Online omnidistance monitoring and automatic control system of the present utility model: whole detection control system comprise 1. in real time in the monitoring dry runs 2. pairs of thermals source of parameter such as relevant temperature, humidity, flow and air-heater monitor and regulate 3. pairs of discharging moisture content and detect 4. pairs of discharge devices and control effectively that running status that 5. overfall overflows monitor 7. pairs of all devices of 6. drying medium overtemperature alarms is monitored and malfunction is reported to the police.
Among Fig. 2, "---" is power control line, and "---" is signal control line, and "---" is medium turnover line, and " " is motor-driven valve, and " A " is point for measuring temperature, and " B " is the hygrometric point,
For MEDIA FLOW to, " → " be grain stream to.
The utility model has been strengthened the online detection and control of each parameter, improve automaticity, electromechanical integration is applied to the dryer field, adopt advanced touch-screen and PLC controller, make the automatic Detection ﹠ Controling of dryer rice drying precipitation implementation overall process by close friend's complete Chinese man-machine dialog interface.
Hot blast temperature and grain temperature parameter by monitoring are carried out On-line Control to the fuel of hot-blast stove, adopt converter technique that air-heater is carried out On-line Control, with temperature and the air quantity that guarantees that baking needed is wanted, and with the temperature automatic constant of drying medium in certain scope, guarantee the continuous supply of oven dry medium, reduce the waste of the energy.Discharging opening at discharge layer 19 is provided with the moisture content monitoring probe, discharging moisture content is carried out online detection, automatically control the rotating speed of discharge device by converter technique, the moisture content that guarantees discharging is controlled within the limits prescribed, guarantee the continuity of discharging, simultaneously can be according to the moisture content of charging and discharging, the output that the rotating speed of control drawing mechanism is regulated dryer.Overfall 5 at top layer is established the overflow monitoring probe, to guarantee the inlet amount of the normal operation of dryer.Establish temp probe in each air inlet pipe, drying medium is carried out overtemperature alarm, prevent that grain from too drying to influence quality.Parameters such as temperature relevant in the dry run, humidity, flow are carried out on-line monitoring, comprise dried " waste gas ", atmospheric temperature, humidity, to provide the control parameter and with reference to corrected parameter.Also the dryer system all devices is monitored in this control system and the malfunction warning, the operation conditions of all equipment can directly inquire about and control.
Claims (13)
1, rice drying unit is characterized in that mainly being made up of elevator, drying mechanism, air feed system.
2, according to the described unit of claim 1, it is characterized in that unit also comprises online omnidistance monitoring and automatic control system, online omnidistance monitoring and automatic control system comprises the testing agency that is arranged in elevator, drying mechanism, air feed system, be connected to PLC controller and human-computer dialogue touch-screen on elevator, drying mechanism, the air feed system circuit, be provided with frequency converter in the air-heater control circuit in air feed system.
3, according to the described unit of claim 2, it is characterized in that drying mechanism comprises support and casing, the charging aperture that is connected with the elevator outlet is offered on casing top, discharging opening is offered in the casing bottom, in shell, from top to bottom arrange the charging layer, preliminary heating zone, the tempering layer, baking zone, the tempering layer, the cooling and drying layer, the tempering layer, the normal temperature cooling layer, the discharge layer, the outlet of discharge layer connects triple valve, the two ends in addition of triple valve connect the charging aperture of discharge nozzle and elevator respectively, air feed system is connected to preliminary heating zone respectively by airduct, baking zone, the cooling and drying layer, preliminary heating zone, baking zone, the air inlet of cooling and drying layer is provided with the temperature monitoring probe respectively, and the normal temperature cooling layer is provided with the cold wind air inlet.
4,, it is characterized in that the charging layer is provided with overfall, and be connected to the charging aperture of feeding mechanism by return duct according to the described unit of claim 3.
5,, it is characterized in that overfall is provided with the spillway discharge monitoring probe according to the described unit of claim 4.
6,, it is characterized in that the charging layer comprises the bipacking-auger of rotation in opposite directions according to the described unit of claim 3.
7, according to the described unit of claim 3, it is characterized in that preliminary heating zone is provided with two-layer at least staggered horn shape box, the blast pipe of preliminary heating zone is connected with the discharge pipe of baking zone, and the air inlet of preliminary heating zone is provided with the humidity detection probe.
8,, it is characterized in that baking zone is provided with air inlet horn shape box and exhaust horn shape box that netted open-end hole is offered in both sides, air inlet horn shape box and exhaust horn shape box interlaced arrangement according to the described unit of claim 3.
9,, it is characterized in that being provided with in the baking zone temperature monitoring probe according to the described unit of claim 3.
10,, it is characterized in that the cooling and drying layer is provided with two-layer at least staggered horn shape box according to the described unit of claim 3.
11,, it is characterized in that the normal temperature cooling layer is provided with two-layer at least staggered horn shape box according to the described unit of claim 3.
12,, it is characterized in that the discharge layer comprises hopper frame, blow-off valve, discharging auger according to the described unit of claim 3.
13, according to the described unit of claim 12, it is characterized in that being provided with moisture content testing agency in the exit of discharging auger, in the control circuit of blow-off valve frequency converter is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01263130 CN2502218Y (en) | 2001-09-30 | 2001-09-30 | Rice drying unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01263130 CN2502218Y (en) | 2001-09-30 | 2001-09-30 | Rice drying unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2502218Y true CN2502218Y (en) | 2002-07-24 |
Family
ID=33670768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01263130 Expired - Lifetime CN2502218Y (en) | 2001-09-30 | 2001-09-30 | Rice drying unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2502218Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101530128B (en) * | 2009-04-15 | 2011-09-28 | 江苏牧羊集团有限公司 | Non-power grain drying mechanism |
| CN102369996A (en) * | 2010-08-05 | 2012-03-14 | 瀚广机械有限公司 | Intelligent type control system for grain dryer |
| CN102749876A (en) * | 2011-04-21 | 2012-10-24 | 江苏天禹农业机械有限公司 | Controller special for two-section fire grain drier with multi-protection function |
| CN102798269A (en) * | 2011-05-28 | 2012-11-28 | 天华化工机械及自动化研究设计院 | Method and equipment for drying/cooling large particles of coal in guide duct type packed tower by cyclic utilization of superheated steam |
| CN104807310A (en) * | 2015-05-06 | 2015-07-29 | 佐竹机械(苏州)有限公司 | Intelligent isothermal temperature control device and circulating grain drier |
| CN104886246A (en) * | 2015-05-20 | 2015-09-09 | 舒城县东方粮油种植专业合作社 | Method for quickly drying unhulled rice |
| CN105066600A (en) * | 2015-08-26 | 2015-11-18 | 酒泉奥凯种子机械股份有限公司 | Drying machine with cooling device and use method |
| CN105302118A (en) * | 2015-11-17 | 2016-02-03 | 中联重机股份有限公司 | Drying system control method, controller and drying system thereof |
| CN106922812A (en) * | 2017-02-28 | 2017-07-07 | 安徽广深机电设备有限公司 | A kind of grain drier |
| CN108917339A (en) * | 2018-08-28 | 2018-11-30 | 柳州瑞兴农机配件加工厂 | A kind of paddy kernel drying unit |
| CN111059885A (en) * | 2019-12-27 | 2020-04-24 | 青岛联盛益康食品科技有限公司 | Dehydrated vegetable is dried and is used safe automatic control detecting system |
| CN112179125A (en) * | 2020-10-15 | 2021-01-05 | 河南科技大学 | Grain drying method and system |
| CN114294935A (en) * | 2021-12-31 | 2022-04-08 | 全椒金竹机械制造有限公司 | Multi-section grain drying device |
-
2001
- 2001-09-30 CN CN 01263130 patent/CN2502218Y/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101530128B (en) * | 2009-04-15 | 2011-09-28 | 江苏牧羊集团有限公司 | Non-power grain drying mechanism |
| CN102369996A (en) * | 2010-08-05 | 2012-03-14 | 瀚广机械有限公司 | Intelligent type control system for grain dryer |
| CN102749876A (en) * | 2011-04-21 | 2012-10-24 | 江苏天禹农业机械有限公司 | Controller special for two-section fire grain drier with multi-protection function |
| CN102798269A (en) * | 2011-05-28 | 2012-11-28 | 天华化工机械及自动化研究设计院 | Method and equipment for drying/cooling large particles of coal in guide duct type packed tower by cyclic utilization of superheated steam |
| CN102798269B (en) * | 2011-05-28 | 2014-10-22 | 天华化工机械及自动化研究设计院有限公司 | Method and equipment for drying/cooling large particles of coal in guide duct type packed tower by cyclic utilization of superheated steam |
| CN104807310A (en) * | 2015-05-06 | 2015-07-29 | 佐竹机械(苏州)有限公司 | Intelligent isothermal temperature control device and circulating grain drier |
| CN104807310B (en) * | 2015-05-06 | 2017-01-18 | 佐竹机械(苏州)有限公司 | Intelligent isothermal temperature control device and circulating grain drier |
| CN104886246A (en) * | 2015-05-20 | 2015-09-09 | 舒城县东方粮油种植专业合作社 | Method for quickly drying unhulled rice |
| CN105066600B (en) * | 2015-08-26 | 2018-08-14 | 酒泉奥凯种子机械股份有限公司 | A kind of drying machine and application method with cooling device |
| CN105066600A (en) * | 2015-08-26 | 2015-11-18 | 酒泉奥凯种子机械股份有限公司 | Drying machine with cooling device and use method |
| CN105302118A (en) * | 2015-11-17 | 2016-02-03 | 中联重机股份有限公司 | Drying system control method, controller and drying system thereof |
| CN106922812A (en) * | 2017-02-28 | 2017-07-07 | 安徽广深机电设备有限公司 | A kind of grain drier |
| CN108917339A (en) * | 2018-08-28 | 2018-11-30 | 柳州瑞兴农机配件加工厂 | A kind of paddy kernel drying unit |
| CN111059885A (en) * | 2019-12-27 | 2020-04-24 | 青岛联盛益康食品科技有限公司 | Dehydrated vegetable is dried and is used safe automatic control detecting system |
| CN112179125A (en) * | 2020-10-15 | 2021-01-05 | 河南科技大学 | Grain drying method and system |
| CN114294935A (en) * | 2021-12-31 | 2022-04-08 | 全椒金竹机械制造有限公司 | Multi-section grain drying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110930 Granted publication date: 20020724 |