Internal-circulation hot air dryer discharge chamber

Abstract

The invention discloses a discharge chamber of an internal circulation hot air dryer, which comprises a casing and a discharge trough; guide plates are arranged on the left and right sides of the casing; at least three groups of diverter plates are arranged between the guide plates; diverter plates on the sides The bottom edge is respectively equipped with discharge wheels, the bottom edge of the splitter plate in the middle and the lower part of the guide plate are respectively connected to the deflector; there is a reclining plate between the discharge trough and the side deflectors; the left reclining plate and the shell It forms an air inlet chamber, and the deck on the right side and the housing enclose an exhaust chamber; the deck on the right is connected with an air duct; further improvement lies in: between the guide plate and each splitter plate, and between the two decks There are peepholes on the front and rear side walls of the shell, and peephole cover plates are screwed on the peepholes; the air guide pipe is a hollow tube of equilateral triangle, and the upper part of the bottom edge is tilted upward; the lower end of the air guide pipe is vertically connected to the right side deck , the upper end extends to the lower part of the splitter plate in the middle to communicate with the space between the exhaust chamber and the two decks. The invention is easy to observe, removes impurities and prevents blockage in time, and effectively prevents the fan from sucking food.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a discharge chamber of an internal circulation hot air dryer. Background technique [0002] Newly harvested grains usually have high water content, which is not conducive to long-term storage. If precipitation measures are not taken in time, it is easy to cause grain mildew and affect the quality of grains. Therefore, newly harvested grains must be dried in the sun, ventilated or dried. Reduce grain moisture for safe storage. At present, most grain processing plants often use grain dryers to dry grain. The principle is that the grains are sent from the hopper to the top of the dryer through the bucket elevator, and the grains fall slowly. After being dried by hot air, they are discharged from the discharge wheel to the discharge The discharge trough at the lower part of the chamber is sent to the feed inlet of the bucket elevator by the discharge auger, and the el...

AI Technical Summary

Problems solved by technology

The grain harvested by the combine harvester is often mixed with a large amount of straw, sand, dust, chaff and other sundries of different lengths, which are sent to the dryer for drying together with the grain, although some of them are dried in the grain Before entering the dryer, grain screening and other processing procedures are adopted, but there are still more straw, sand, chaff and other sundries mixed in the grain and entering the dryer together, which not only makes the drying process of the dryer often There is a phenomenon of bridging and blocking the warehouse above the discharge wheel in the discharge chamber, and the dried grain contains more impurities. Once the warehouse is blocked, the grain needs to be discharged. The maintenance personnel enter from the top of the dryer to the dryer. The bottom discharge room is cleaned out in time, which is very difficult, labor-intensive, time-consuming, and labor-intensive, which brings high maintenance costs and seriously affects the drying progress.

[0003] Therefore, technicians in this industry have taken various technical measures. For example, Chinese Patent No. 201420455434.6 discloses "A Kind of Hot Air Dryer". There is an air deflector, which has a better dust removal effect and effectively reduces the rate of impurities and ash in the dried grains. However, there are still some shortcomings in the structure of this technology. The main shortcomings are: the air guide connected to the lower guide plate Due to the unreasonable structure, many grains are sucked out from the wind deflector by the fan along with dust and sundries, so that the fruit of the harvest is wasted. In addition, there is no consideration of the structure that is convenient for cleaning after the bridge is blocked, etc. These problems restrict the popularization and use value of this technology

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