CN201388475Y

CN201388475Y - Grain drying device

Info

Publication number: CN201388475Y
Application number: CN200920039562U
Authority: CN
Inventors: 高峰
Original assignee: Jiangsu Muyang Group Co Ltd
Current assignee: Jiangsu Muyang Group Co Ltd
Priority date: 2009-04-15
Filing date: 2009-04-15
Publication date: 2010-01-27
Anticipated expiration: 2019-04-15

Abstract

The utility model discloses a grain drying device in the field of a drying device, comprising a feeding section, a drying section and a discharge opening; the feeding section is arranged above the drying section, the discharge opening is arranged below the drying section, the drying section is a conical shape with large top and small bottom; the drying section comprises an inner conical-shape screen and an outer conical-shape screen which are axially arranged, sieve pores are densely distributed on the inner conical-shape screen and the outer conical-shape screen; a blast pipe is arranged at the center of the feeding section, the lower end of the blast pipe and the upper end of the inner conical-shape screen are connected by a transition piece in a sealing way, as the inner conical-shape screen and the outer conical-shape screen are axially arranged, the contact time of the grains and hot wind is ensured to be the same, the water-reduction degree is equal, and the moisture uniformity of the grains after being dried is improved. Meanwhile, as the drying section is the conical shape with large top and small bottom, the grains can be discharged outside a drying layer by virtue of the gravity without arranging mechanical power; as the grains are not stirred mechanically and rubbed rapidly, the smashing of the grains is greatly reduced and the quality of the drying grains is ensured.

Description

Grain drying device

Technical field

The utility model relates to a kind of drying unit of grain.

Background technology

Present drying plant generally includes grain storage layer, baking zone and discharge layer, the grain storage layer is arranged on the top of baking zone, baking zone is a square structure, the baking zone below is provided with the discharge layer, the same section of described discharge layer is provided with a plurality of discharge mechanisms, is provided with total discharge mechanism below a plurality of discharge mechanisms.There is following shortcoming in this mechanism: 1, guarantee that surely its running status is unified because a plurality of discharge mechanisms differ when fabrication and installation, cannot say for sure to demonstrate,prove grain can evenly descend, and this just influences the drying effect of material, and the final moisture content unevenness increases.2, because of repeatedly being subjected to mechanical turning effort, material is broken because of a large amount of extruding increase, and has a strong impact on baking back quality.3, a plurality of discharge mechanisms have increased power and have increased energy consumption.

Summary of the invention

The utility model provides a kind of grain drying device, makes simply, can make that grain is evenly dried, percentage of damage is low, and not have mechanical energy consumption.

For addressing the above problem, the utility model is achieved in that

Grain drying device, comprise feed zone, oven dry section and discharge gate, feed zone is arranged on the top of oven dry section, discharge gate is arranged on the below of oven dry section, the taper that the oven dry section is big up and small down, described oven dry section comprises the inner conical sieve and the male-tapered sieve of coaxial setting, is densely covered with sieve aperture on inner conical sieve and the male-tapered sieve; Described feed zone center is provided with blast pipe, and blast pipe lower end and inner conical sieve upper end are tightly connected through the transition connector.

During work, the annular space that material is formed by the barrel and the blast pipe outer wall of feed zone enters in the drying channel that inner conical sieve and male-tapered sieve constitute, and relies on gravity evenly mobile, is discharged by discharge gate again.Hot blast is entered on the inner conical sieve by blast pipe, under the effect of hot-blast pressure, passes the inner conical sieve and enters in the drying channel, and discharge from the male-tapered sieve.Finish the wet exchange of heat when hot blast passes drying channel, take away grain moisture content.Grain flows from top to bottom, finishes grain heat-drying.Because inner conical sieve and male-tapered are sieved coaxial setting, guaranteed that the time that grain contact with hot blast is identical, thereby precipitation range is equal, has improved the water uniformity after grain dries by the fire.Because the big up and small down pyramidal structure of oven dry section makes grain can rely on gravity just can discharge outside the baking zone, need not to be provided with power simultaneously, grain effectively reduces the fragmentation of grain not through mechanical agitation and high-speed friction, has guaranteed the quality of oven dry grain.

As further optimization of the present utility model, described transition piece is up-small and down-big taper, and the hot blast flow velocity is reduced, be evenly distributed on the inner conical sieve around, increased the uniformity of grain heat-drying.

As further optimization of the present utility model, the rounded or polygon in cross section of described inner conical sieve and male-tapered sieve.This regular shape, easily manufactured.

As further optimization of the present utility model, connect by gripper shoe between described inner conical sieve and the male-tapered sieve, strengthen the intensity of inner conical sieve and male-tapered sieve.

Description of drawings

Fig. 1, structural representation of the present utility model.

Fig. 2, the vertical view of Fig. 1.

Fig. 3, the partial schematic diagram of oven dry section.

Fig. 4, the another kind of cross-section structure of oven dry section.

The specific embodiment

Be a kind of grain drying device as shown in Figure 1, 2, 3, comprise feed zone 3, oven dry section 4 and discharge gate 5, feed zone 3 is arranged on the top of oven dry section 4, discharge gate 5 is arranged on the below of oven dry section 4, the taper that oven dry section 4 is big up and small down, oven dry section 4 comprises the inner conical sieve 4-1 and the male-tapered sieve 4-2 of coaxial setting, the cross section of inner conical sieve 4-1 and male-tapered sieve 4-2 is rounded, connect by gripper shoe 4-3 between the two, also be densely covered with sieve aperture on inner conical sieve 4-1 and the male-tapered sieve 4-2; Feed zone 4 centers are provided with blast pipe 1, and the transition piece 2 of blast pipe 1 lower end and inner conical sieve 4-1 upper end through being up-small and down-big taper is tightly connected.

The utility model is not limited to the foregoing description, and the cross section of described inner conical sieve 4-1 and male-tapered sieve 4-2 can also be regular polygon.

Claims

1, grain drying device, comprise feed zone, oven dry section and discharge gate, feed zone is arranged on the top of oven dry section, discharge gate is arranged on the below of oven dry section, it is characterized in that the taper that the section of oven dry is big up and small down, described oven dry section comprises the inner conical sieve and the male-tapered sieve of coaxial setting, is densely covered with sieve aperture on inner conical sieve and the male-tapered sieve; Described feed zone center is provided with blast pipe, and blast pipe lower end and inner conical sieve upper end are tightly connected through the transition connector.

2, grain drying device according to claim 1 is characterized in that described transition piece is up-small and down-big taper.

3, grain drying device according to claim 1 and 2 is characterized in that the cross section of inner conical sieve and male-tapered sieve is rounded.

4, grain drying device according to claim 1 and 2 is characterized in that the cross section of inner conical sieve and male-tapered sieve is regular polygon.

5, grain drying device according to claim 1 and 2 is characterized in that being connected by gripper shoe between inner conical sieve and the male-tapered sieve.