CN2174669Y - Combined multi-circulating drier for grains - Google Patents

Abstract

The utility model relates to a combined multi-circulating drier for grains, which comprises a grain storage section, a preheating section, a cooling section, a grain discharge section assembled between a tower body, a heating section, and a cross flow tempering section circularly arranged among the sections. The inner sieve plates and the outer sieve plates of the net cylindrical bodies of preheating section or the heating section are provided with helical flow guiding plates. The guard plates of the inner cylindrical body and the outer cylindrical body of the cross flow tempering section are provided with cross flow devices. The inside of tempering section is provided with hot air pipelines and cold air pipelines. The bottom of the grain discharge section is provided with an adjustable grain discharge device. The utility model has the advantages of stereo combination, simple preparing process, easy installation, convenient maintenance, low cost, no environment influence, even grain heating, even precipitation, and high grain quality after baking.

Description

Combined multi-circulating drier for grains

The utility model relates to a kind of net post formula foodstuff drying device, particularly a kind of many circulations of combined type grain drier.

At present, general net post formula foodstuff drying device, all interior sieve tray and outer sieve tray are fitted together with " Contraband " transverse groove column, medium radially flows over, the air flow dryer of grain vertical landing, it have consume that steel are few, floor space is little, to manufacture cost low and adaptation zone wide, wide in variety, the output advantages of higher of oven dry.But, long-term some problems of discovery of using: 1, with " Contraband " transverse groove pillar construction, low temperature " dead band " is many, grain is at the cylinder interlayer, along the set form vertical landing, the grain of the inside, the flanging position of " Contraband " type column, medium is obstructed, can't penetrate the grain layer, therefore, grain is heated unbalanced, and precipitation is also even inadequately.2, grain vertical landing, the damaged surface of North and South direction is subjected to solar radiation temperature difference, and therefore, grain in the south and north is heated and precipitation also all exists difference.3, the vertical landing of set form is subjected to the interference of extraneous wind direction, wind-force, causes the grain of different azimuth to be heated and also all there is certain difference in precipitation.The grain heat-drying in the north generally all carries out in the winter time, if the excessive 6-7 level of north wind, so, the grain of windward side is subjected to the pressure influence of outside strong cold air, the eliminating of interior thermal medium is subjected to the obstruction of external pressure, certainly will shift to the less the south of pressure, like this, velocity of medium in the south is accelerated, and flow also can strengthen.Because all multifactor influences such as direction temperature differences, wind speed difference, it is inhomogeneous to make grain baking back quality be prone to moisture content, and the stability of influence storage was difficult to the summer keeping.4, mostly the dryer integral installation is the on-the-spot assembling the user, needs scaffolding, and therefore, the duration is longer, especially installs winter, bothers morely, and difficulty is bigger.5, control row's grain with reductor drive "+" type hinge dragon or "

" the type scraper plate, do rotation direction and advance branch grain, therefore, equipment need be installed in the tower, is subjected to the influence of dust and other factors, and equipment failure rate is higher, and maintenance is also convenient inadequately.Wait to improve so existing net post formula foodstuff drying device is anxious.

The purpose of this utility model provides a kind of many circulations of combined type grain drier, its compact conformation, three-dimensional combination, process, install easily, easy to maintenance, cost is low, using not influenced by external condition, grain is subjected to thermal balance, and precipitation is even, dependable performance, can significantly improve grain baking back quality, reduce equipment failure rate.

The purpose of this utility model is achieved in that this device comprises that branch is located at the grain storage section of tower body the top, preheating section, the cooling section of below, the bringing-up section that grain discharging section and circulation therebetween are provided with, cross flow tempering section, wherein preheating section or bringing-up section net post body in, outer sieve tray adopts vertical slot shape column and last, lower flange is fixedly connected, be provided with spirality pilot flow plate between sieve tray, in the cross flow tempering section, be provided with the cross-flow device between the backplate of outer cylindrical body, be provided with the hot-blast pipe line of isolating with insulation material respectively in the hot delay section, the cold wind pipeline is provided with adjustable grain discharging equipment in the grain discharging section bottom.

Because each sections of the utility model adopts flange combination to connect, circulation according to actual needs is provided with bringing-up section, cross flow tempering section, and with vertical slot shape column with in its inner cylinder, outer sieve tray and last, lower flange is fixed together, spirality pilot flow plate and cross-flow device are set between sieve tray, so that the grain longshore current plate between the net post body is made the circulation backspin flows, constantly change grain position direction, effectively overcome the low temperature " dead band " that existing drying machine translot pillar construction exists, the grain vertical landing inequality of being heated, precipitation is irregular, the shortcoming that influenced by external condition, grain in this device is when eddy flow falls, not only often change grain position direction, and in the limited height of tower body, the stroke that significant prolongation grain flows, increase its used time of whole flow process in tower, for grain is subjected to thermally-stabilised, balanced, precipitation is even, significantly improve work efficiency and grain baking back quality, created advantageous conditions.Because of its compact conformation, processing, easy for installation, be not subjected to the influence of extraneous service condition, device therefor is few, saves power, can obviously reduce equipment breakdown, so be easy to apply.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a kind of concrete structure schematic diagram of the present utility model.

Fig. 2 is the cutaway view of Fig. 1 along the B-B line.

Fig. 3 is the cutaway view of Fig. 1 along the A-A line.

Fig. 4 is the simplified structure schematic diagram of spirality pilot flow plate.

Fig. 5 is the left view of Fig. 4.

Fig. 6 is the vertical view of Fig. 4.

Fig. 7 is the structural representation of speed governing delivery plate.

Fig. 8 is the cutaway view of Fig. 7 along the C-C line.

Fig. 9 is the structural representation of circular orbit and polygonal support thereof.

Figure 10 is the front view of Fig. 9.

Describe concrete structure of the present utility model in detail according to Fig. 1-10.This device is to be developed on the architecture basics of existing net post formula air flow dryer.It adopts three-dimensional, each sections that has connecting flange is according to difference in functionality division separately, promptly, utilize flange to fit together by sections such as grain storage section 3, preheating section 4, bringing-up section 5, cross flow tempering section 6, hot delay section 8, cooling section 9, grain discharging sections 11.Wherein grain storage section 3, give hot arc 4 and be located at the tower body the top, cooling section 9, grain discharging section 11 are located at below of tower body.The setting that can circulate in proportion according to actual needs of bringing-up section 5 and cross-flow section 6, the inside and outside sieve tray of preheating section 4 or bringing-up section 5 net post bodies adopts vertical slot shape column and upper and lower flange to be fixedly connected, be provided with spirality pilot flow plate 8 between sieve tray, and be connected with vertical slot shape column by connecting plate 8.Grain is done circulation rotation gravity flow along plate 18 between inside and outside sieve tray, constantly change grain position direction.Grain no longer is subjected to extraneous wind direction, wind-force and sunlight to penetrate the different interference of face, and the while also in the limited height of tower body, prolongs its flow process, and this has created advantage to bulky grain, high moisture content grain precipitation, can improve work efficiency more than 20%.Being provided with the cross-flow device between the backplate of cross flow tempering section 6 inside and outside cylinders, is in commutation guide plate 19 with arranged crosswise is installed in respectively between outer cylindrical body.Grain when flowing through this section, internal layer grain and outer grain transposition, and make tempering of short duration, equalization temperature moisture content.Hot delay section 8 is respectively equipped with hot and cold MEDIA FLOW to opposite cold wind pipeline 7 and hot-blast pipe line 23, and isolates with insulation material respectively.The thermal medium that has uniform temperature upwards blows to the inner cylinder space by hot-blast pipe line 23 through air outlet 25, and under the internal pressure effect, thermal medium sees through interior sieve tray and contact with the grain layer, rising grain temperature and with the outer sieve tray eliminating of humid gas warp.Do not have guide plate between the inside and outside sieve tray of cooling section 9, still adopt vertical slot shape column affixed.Cold medium adopts extraneous natural cold air sieve tray outside cooling section 9 to contact with the grain layer, makes the grain cooling, and by the exhaust outlet of interior sieve tray through cold wind pipeline 7, gets rid of under the effect of air exhauster, takes away the last part moisture content of grain in cooling section 9 flow processs.Grain discharging section 11 adopts between the affixed inside and outside backplate of vertical slot shape column does not have guide plate, and its bottom is provided with fixing grain box 20 and the adjustable grain discharging equipment of dividing.Speed governing delivery plate 29 in the adjustable grain discharging equipment utilizes the support roller 24 of its bottom, is assembled on the circular orbit 31.Bottom, the angle portion of the polygonal support 32 of circular orbit 31 is provided with lowering or hoisting gear 21.The amplitude modulation handle 30 that is packed on the speed governing delivery plate 29 links with the transmission device 12 that micro-speed motor drives.Lowering or hoisting gear 21 is fixed on the tower body support 10.Adjust lowering or hoisting gear 21 and can control speed governing delivery plate 29 and 20 distances of fixing branch grain box.Drive amplitude modulation handle 30 by transmission device 12 and can adjust the grain flow of speed governing delivery plate 29, go into to store up by delivery hopper 13, mouthful 14 outflows of putting out cereal so that reach the grain of standard water through super-dry.For making the tower body after the assembling firm, be provided with between the inside and outside flange of each sections and reinforce balancing pull rod 27.

During use, select suitable sections to be assembled into tower body on request.Grain is through grain inlet 1.By level detector 2, feed back to console, enter grain storage section 3 again, drop on the branch grain cap 17, flow into the bringing-up section 5 and the cross flow tempering section 6 of preheating section 4, circulation setting successively, and after in the cross-flow device, realizing inside and outside grain layer transposition, enter hot delay section 8, attemperating unit 15 and wet control device 16 by this section setting feed back to console, then through cooling section 9, grain discharging section 11, fall on the speed governing delivery plate 29 by a minute grain box 20, buncher drive transmission 12 drives amplitude modulation handle 30, makes speed governing delivery plate 29 do the amplitude modulation campaign, controls the grain flowing velocity effectively.Last grain goes into to store up through delivery hopper 13, mouthful 14 outflows of putting out cereal, and finishes whole drying courses, realizes the purpose of this utility model.Ruo Tanei finds to have foreign matter to stop up, and can open impurity removing door 22 and manhole 26 removings.

Claims (3)

1, a kind of many circulations of combined type grain drier, comprise that branch is located at the grain storage section of tower body the top, preheating section, the cooling section of below, the bringing-up section that grain discharging section and circulation therebetween are provided with, cross flow tempering section, it is characterized in that preheating section or bringing-up section net post body in, outer sieve tray adopts vertical slot shape column and last, lower flange is fixedly connected, be provided with spirality pilot flow plate between sieve tray, in the cross flow tempering section, be provided with the cross-flow device between the backplate of outer cylindrical body, be provided with the hot-blast pipe line of isolating with insulation material respectively in the hot delay section, the cold wind pipeline is provided with adjustable grain discharging equipment in the grain discharging section bottom.

2, drying machine according to claim 1 is characterized in that connecting between the inside and outside flange of each sections and is provided with the reinforcing balancing pull rod.

3, drying machine according to claim 1, it is characterized in that the speed governing delivery plate in the adjustable grain discharging equipment utilizes the support roller of its bottom to be assembled on the circular orbit, polygonal support angle bottom portion on the circular orbit is provided with lowering or hoisting gear, is packed in amplitude modulation handle and transmission device interlock on the speed governing delivery plate.

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