US 2019/0137178 A1 · NEGATIVE-PRESSURE CONTINUOUS GRAIN DRYER WITH BUILT-IN HEATING DEVICE

Abstract

The present application discloses a negative-pressure continuous grain dryer with a built-in heating device, wherein the negative-pressure continuous grain dryer comprises a dryer bin, a heating device, and a centrifugal fan. Several levels of the heating devices are disposed from top to bottom in the dryer bin. A grain mixing device is provided below the heating device at each level. Outside the bin, an auxiliary heating device and a natural air inlet are provided in correspondence with the heating device at each level. The auxiliary heating device and the natural air inlet communicate with the grains and the respective heating device in the dryer bin through a perforated baffle plate. The centrifugal fan communicates with each of moisture exhaust vents at each level through an air duct.

Claims20

Dependent claims

A negative-pressure continuous grain dryer with a built-in heating device, comprising

a dryer bin,
a heating device, and
a centrifugal fan,
wherein a plurality of levels of the heating devices are disposed from top to bottom in the dryer bin, a grain mixing device is provided below the heating device at each level,
an auxiliary heating device and a natural air inlet are provided outside the bin and in correspondence with the heating device at each level,
the auxiliary heating devices and the natural air inlets are in communication with the grains and the heating devices in the dryer bin through a perforated baffle plate, the centrifugal fan is in communication with each of moisture exhaust vents at each level through an air duct.

3 more elements

A negative-pressure continuous dryer, comprising:

a bin body (81), provided with a feed inlet (811) arranged at the top of the bin body (81) and a feed outlet (812) arranged at the bottom;
a plurality of drying layers (82), distributed in the bin body (81) along motion direction of materials;
and
a negative-pressure device, communicated with an air outlet (822) of the bin body (81) to exhaust air from the bin body (81);
further comprising:
a control device and a detection device electrically connected with the control device, wherein the detection device comprises a moisture detection device, and the moisture detection device is at least arranged at the feed inlet (811) and the feed outlet (812);
and a feed outlet adjustment device (8121) and several heating units (83) arranged in each drying layer (82), wherein the heating units (83) and the feed outlet adjustment device (8121) are all electrically connected with the control device;
the control device controls the operation of the heating units (83) according to detection results of the moisture detection device at the feed inlet (811);
and the control device controls the operation of the feed outlet adjustment device (8121) according to the results of the moisture detection device at the feed outlet (812).

6 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/241,607Filed 7 Jan 2019

Priority

CN 201610521316.45 Jul 2016

Published

9 May 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification14 codes

F26B 5/04
Drying solid materials or objects by processes not involving the application of heat: by evaporation or sublimation of moisture under reduced…
F26B 17/122
With movement performed solely by gravity , i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft: the material…
A23B 9/08
Preservation of edible seeds, e.g. cereals: drying; Subsequent reconstitution
F26B 3/04
By convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air: the gas or vapour…

Negative-pressure continuous grain dryer with built-in heating device

Life of this patent

Negative-pressure continuous grain dryer with built-in heating device

Life of this patent

Abstract

Claims20