CN2192857Y

CN2192857Y - Hot, cold wind alternately stove

Info

Publication number: CN2192857Y
Application number: CN 93232904
Authority: CN
Inventors: 刘志强; 沈念禹; 董玉俊
Original assignee: XINGHUO HOT-BLAST STOVE FACTORY HARBIN
Current assignee: XINGHUO HOT-BLAST STOVE FACTORY HARBIN
Priority date: 1993-12-24
Filing date: 1993-12-24
Publication date: 1995-03-22
Anticipated expiration: 2003-12-24

Abstract

The utility model relates to a drying machine or a drying apparatus, which comprises an air supply device, a material distributing mechanism arranged on the top part of the drying machine, and drying segments, wherein, each of the drying segment is composed of a hot air distributing pipe and an air exhausting pipe. A cooling segment is jointed in each drying segment of the drying machine, wherein, the cooling segment is composed of a cold air distributing pipe and a cold air delivering pipe. The hot air and the cold air are alternatively contacted with drying materials, which can enhance the drying rate and the drying quality, and is in favor of saving energy; the drying materials are not damaged by the high temperature, and the quality is good. The drying machine is especially suitable for drying the grain with higher initial moisture.

Description

Hot, cold wind alternately stove

The utility model relates to a kind of equipment that bulk material with progressive motion is carried out drying.

Existing dryer generally is by hot air supply device, material distribution mechanism, forms some oven dry sections by horn shape hot blast distributor pipe, horn shape exhaust duct and forms.Material is distributed in the housing through distribution mechanism equably by top, by the gravity free-falling, at oven dry section and the direct contact drying of hot blast.In order to improve drying effect, must improve hot blast to a certain degree temperature or prolong drying time.Waste energy, drying effect is poor, and will influence the quality of quilt oven dry materials such as grain.

The purpose of this utility model is to provide a kind of energy-conservation and dryer that drying effect is good.

The purpose of this utility model is achieved in that its composition comprises air supply device, be arranged at the material distribution mechanism at top, oven dry section by hot blast distributor pipe, exhaust duct are formed connects a cooling section under each oven dry section, cooling section is made up of cold wind distributor pipe, cold wind efferent duct.

Advantage of the present utility model is: establish a cooling section after each oven dry section, in the oven dry section, the thing that is dried contacts with hot blast, evaporation moisture content.At cooling section, the material of heat contacts with cold wind, and its skin is cooled rapidly and reduces moisture content simultaneously, and the moisture content of material inside will follow direction of heat flow outwards to shift, and will improve rate of drying and dry mass, help energy savings.Improved the adverse environment of the material hot soak condition that is dried, be particularly suitable for drying grain, avoided the infringement of high temperature, improved product quality nutrition.Especially be fit to the high grain of the original water content of oven dry.That the utility model is designed to is multistage, concurrent-countercurrent is dry, the adverse current cooling structure, will more help improving drying efficiency.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the B-B view of Fig. 1;

Fig. 4 is the C-C view of Fig. 1;

Fig. 5 is the partial structurtes schematic diagram of dryer section of the present utility model and cooling section.

For example the utility model to be done detailed system below in conjunction with accompanying drawing describe: Fig. 1 and Fig. 2 have drawn the overall structure that the utility model comprises hot-blast stove.The topmost of dryer is a material distribution mechanism 1, and 4～6 sections oven dry sections, cooling section, the cold oven dry part 2 that replaces of heat are arranged at the bottom.Each dryer section by two-layer horn shape hot blast distributor pipe 3, be sandwiched in the concurrent-countercurrent oven dry section that the horn shape exhaust duct 4 between the two-layer horn shape hot blast distributor pipe 3 forms.The hot blast that is produced by hot-blast stove enters each dryer section through air main, is suitable, reverse flow through hot blast distributor pipe 3 thing that is evenly distributed and is dried, and discharges through exhaust duct 4.Each cooling section comprises horn shape cold wind distributor pipe 5, and cold wind is introduced cold wind distributor pipe 5 by the air inlet on the dryer housing, and its air outlet is positioned at the top of cold wind distributor pipe, the cold wind and the thing reverse flow that is dried.The air outlet of every section cooling section all is connected with the cold wind efferent duct 6 that is positioned at dryer one side, the give a dinner for a visitor from afar air inlet of machine 7 of cold wind efferent duct.Cool air hose outer wrapping flue 8, the outlet of the smoke exhaust fan 9 of hot-blast stove is connected to this flue 8.

Claims

1, a kind of heat, cold wind alternative expression dryer, it comprises air supply device, is arranged at the material distribution mechanism at top, forms the oven dry section by hot blast distributor pipe, exhaust duct, it is characterized in that: connect a cooling section under each oven dry section, cooling section is made up of cold wind distributor pipe, cold wind efferent duct.

2, heat according to claim 1, cold wind alternative expression dryer, it is characterized in that: suitable, adverse current oven dry section that each oven dry section is made up of angle shape exhaust duct between the two-layer horn shape hot blast distributor pipe, described cooling section is the counterflow cooling section that air outlet is positioned at cold wind distributor pipe top.

3, heat according to claim 1 and 2, cold wind alternative expression dryer, it is characterized in that: the cold wind efferent duct that is connected with the air outlet of each cooling section is positioned at a side, its outer wrapping exhaust gases passes.