CN2651682Y

CN2651682Y - Drum-type grain drier

Info

Publication number: CN2651682Y
Application number: CN200320104902.7U
Authority: CN
Inventors: 郭立春
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-10-17
Filing date: 2003-10-17
Publication date: 2004-10-27
Anticipated expiration: 2013-10-17

Abstract

Cylindrical grain dryer, including hot air stove, drying tower, blower and connecting pipes, is characterized in that: the cylindrical cylinder in the drying tower has a grain channel with a circular cross section from top to bottom; From top to bottom, it is divided into three sections: heating section, slowing section and cooling section; in the grain channel of the heating section, there is a circular layer changer along the circumferential direction of the grain channel; the layer changer divides the grain channel into inner and outer two. The circular middle partition of the first layer; the inner and outer layers on both sides of the middle partition, along the circumferential direction of the grain channel, are evenly distributed with alternate flow channel openings that allow the grain to flow down and baffles that prevent the grain from flowing down; There is a sloped floor under the crossing. The cross-section of the grain channel of the utility model is circular, so the grain is dried evenly; the grain dryer is not ventilated, and after the grain is heated and dried in the heating section, the grain cools down slowly through the slow cooling section, and then enters the cooling section for drying. The normal temperature air that blows in is cooled, which can prevent the high temperature grain from bursting due to sudden cooling.

Description

The drum type brake grain drier

(1) technical field

The utility model relates to the drying tower cylindrical shell of a kind of grain drier, particularly a kind of grain drier.

(2) background technology

Grain drying is very important technical process in the grain storage work, and in the prior art, grain drier mostly is tower grain drier, and this drying machine is mainly connected to form with pipeline by drying tower, hot-blast stove, air blast.The cross section of drying tower cylindrical shell is square, it is the vertical food passageway of rectangular loop that cross section is arranged in the cylindrical shell, passage is to be made of the horn shape box, and cylindrical shell is divided into the top bringing-up section and cooling section two sections heaters in bottom are coal-fired hot-blast stoves, the exportable hot blast of coal-fired hot-blast stove.

During drying grain, grain to flowing through passage, forms rectangular cylinder grain layer from top to bottom in passage, at middle hot arc, hot blast is blown over the grain layer of passage, and grain is heated, dries, at cooling section, normal temperature air is blown over the grain layer of passage, and high temperature grain is cooled down.

The cross section of this grain drier food passageway is a straight-flanked ring, and in the time of in the food passageway, the grain thickness of four angles and four faces is different, when drying, can cause uneven drying even; Cylindrical shell only has two sections of bringing-up section and cooling sections in addition, and grain is after the upper strata bringing-up section is heated, dries, and high temperature grain enters cooling section immediately, makes the grain explosion easily; Have, when grain flowed down in passage, the outer field grain of the grain of passage internal layer and passage fell along the internal layer and the skin of passage respectively all the time again, in bringing-up section, internal layer grain contacts hot blast all the time earlier, and outer grain back contact all the time hot blast also can cause uneven drying even.

(3) summary of the invention

In order to solve the problem that above-mentioned prior art exists, the utility model provides a kind of drying grain even, and when drying, grain is difficult for the drum type brake grain drier of explosion.

The technical scheme that adopts is:

The drum type brake grain drier is connected to form by pipeline by hot-blast stove, air blast, drying tower.

Drying tower is a cylindrical shape, and it is the vertical food passageway of annular that cross section is arranged in its cylindrical shell.Cylindrical shell is divided into three sections of bringing-up section, delay section and cooling sections from top to bottom, and the food passageway of bringing-up section and cooling section is to surround with sieve plate, and the food passageway of delay section is to be surrounded by thin plate; Bringing-up section can blast hot blast by pipeline by hot-blast stove, and cooling section can blast normal temperature air by pipeline with air blast.In the food passageway of bringing-up section, have annular to change a layer device along the circumferencial direction of bringing-up section, annular changes layer device food passageway is separated into several sections.Change the annular median septum that the useful bar shaped sheeting of layer device surrounds, median septum is divided into food passageway earlier near the internal layer in the cylindrical shell with near the outer skin of cylindrical shell, at internal layer and skin, circumferencial direction along food passageway, be evenly equipped with alternate grain stream road junction and baffle plate respectively, the area of runner mouth and baffle plate is identical, the runner mouth can allow under the grain stream, baffle plate stops under the grain stream, the runner mouth of internal layer is mutually close with outer field baffle plate, on same central angle, the baffle plate of outer field runner mouth and internal layer is mutually close, on same central angle, the sloping end under the runner mouth of outer field runner mouth and internal layer,, the end on the slope under the outer runner mouth, is towards internal layer towards skin at the end on the slope under the inner laminar flow road junction, when grain flow through in the food passageway change layer device after, internal layer grain can flow to skin because of the end on the slope under the runner mouth by the runner mouth of internal layer, and is same, and outer grain can flow to internal layer because of the end on the slope under the runner mouth by outer field runner mouth.

The cross section of food passageway of the present utility model is an annular, and the thickness of grain layer equates that particularly food passageway changes a layer device, so drying grain is even; The cylindrical shell of this grain drier is divided into three sections of bringing-up section, delay section and cooling sections, the food passageway of delay section surrounds with thin plate, stuffy, grain is after bringing-up section is heated oven dry, slowly lower the temperature through delay section, and then enter cooling section, with the normal temperature air cooling that blasts, can avoid high temperature grain abrupt temperature drop and explosion.

(4) description of drawings

Fig. 1 is the main cutaway view of grain drier.

Fig. 2 is one section the schematic perspective view that changes layer device.

(5) specific embodiment

Among Fig. 1, grain drier by hot-blast stove 1, founding cylindrical shape drying tower 2, the air blast 3 usefulness pipelines 4 placed and connecting to form.

Drying tower 2 has cylindrical tube 5, cylindrical shell from top to bottom is divided into 8 three sections of bringing-up section 6, delay section 7 and cooling sections, it is the food passageway 9 of annular that cross section is arranged in the cylindrical shell, and the food passageway of bringing-up section 6 and cooling section 8 is to be surrounded by sieve plate, and delay section 7 is to surround with thin plate.In the food passageway of bringing-up section, along the circumferencial direction of food passageway, there are two annulars to change layer device 10, change layer device 10 food passageway of bringing-up section is separated into three sections.

Among Fig. 2, change the annular median septum 12 that layer device 10 useful thin strip-plates surround, median septum is divided into annular food passageway 9 near the internal layer in the cylindrical shell with near the outer skin of cylindrical shell, the internal layer of median septum both sides and skin are evenly equipped with alternate grain stream road junction 13 and baffle plate 14 along the circumferencial direction of food passageway, the area of runner mouth 13 and baffle plate 14 equates, runner mouth 13 can allow under the grain stream, baffle plate 14 stops under the grain stream, for grain is flowed down from the runner mouth, baffle plate 14 is two sides domatics, the runner mouth of internal layer staggers mutually with outer field runner mouth, be the runner mouth of internal layer and outer field baffle plate on same central angle, the baffle plate of outer field runner mouth and internal layer is on same central angle.Sloping base plate 15 below each runner mouth, the end on the slope under the outer runner mouth, is towards internal layer towards skin at the end on the slope under the inner laminar flow road junction.Base plate because of the slope after the grain of internal layer flows down from the runner mouth flows to skin; After outer field grain flowed down from the runner mouth, also the base plate because of the slope flowed to internal layer, promptly changed layer device and can make ectonexine grain change layer when flowing down.In the bringing-up section of drying tower food passageway, a plurality of layer device that change can be arranged, adjacent two distances of changing layer device are 1.8-2.2 rice.

Dry in order to prevent extraneous wind influence, the outside of drying tower cylindrical shell bringing-up section is provided with a circle cylindrical shape hurricane globe 11.

Claims

1, drum type brake grain drier, comprise hot-blast stove (1), drying tower (2), air blast (3) and connecting pipe (4), it is characterized in that: drying tower (2) has cylindrical tube (5), and it is circular food passageway (9) that cross section is arranged in the cylindrical tube (5) from top to bottom; Cylindrical tube (5) is divided into (8) three sections of bringing-up section (6), delay section (7) and cooling sections from top to bottom; The food passageway of bringing-up section (6) and cooling section (8) is to be surrounded by sieve plate; The food passageway of delay section (7) is to be surrounded by thin plate; In the food passageway of bringing-up section (6), there is annular to change a layer device (10) along the circumferencial direction of food passageway; Change a layer device (10) handlebar food passageway and be divided into inside and outside two-layer annular median septum (12); The internal layer and the skin of median septum (12) both sides along the circumferencial direction of food passageway, are evenly equipped with the runner mouth (13) under alternate the allowed grain stream and stop baffle plate (14) under the grain stream; Runner mouth (13) is sloping base plate (15) down.

2, drum type brake grain drier according to claim 1 is characterized in that: adjacent two are changed that distance is a 1.8-2.2 rice between a layer device (10) in the food passageway of described bringing-up section (6).

3, drum type brake grain drier according to claim 1 and 2 is characterized in that: described baffle plate (14) is the two sides domatic.

4, drum type brake grain drier according to claim 1 is characterized in that: the outside of the bringing-up section (6) of the cylindrical tube (5) of described drying tower (2) is provided with a circle cylindrical shape hurricane globe (11).