SU909498A1 - Ventilated drying hopper - Google Patents

Description

(54) VENTILATED BUNKER DRYER

one

The invention relates to a technique for drying and storing bulk materials and can be used in bunkers for the active venting of grain, mainly in agriculture.

Vented bunkers for grain products are known that contain a perforated cylindrical body with a lid and a conical base and a centrally located perforated collector, the inlet of which is made with a window and provided with a damper, and an annular chamber defined between the collector and the body autonomous pipe DlThe collector is metal-intensive and occupies a significant part of the total volume of the bunker, although in the process of ventilators Ani is not filled with material.

With a partial cleaning of the base of the bunker, a part of its surface remains open and the air is uselessly escaping into the bunker, which deteriorates the unloading process. In addition, the hopper is completely impossible to clean the air.

Closest to the proposed

technically, there is a substance bin comprising an annular chamber formed by two concentrically arranged perforated cylinders with a flat bottom and a discharge opening, and a central air distribution channel. connected through an air duct to an IIS ventilator

RU 2.

Claims (2)

However, in the above bunker dryer, considerable energy is required to prepare the heat carrier body and blow the material to be dried. The unloading of the material in the dryer bin is not regulated by consumption and is rather complicated. The purpose of the invention is to reduce energy costs and simplify unloading operations. This goal is achieved by the fact that the dryer hopper additionally comprises a rotary pneumatic-opener, open at the top, placed under the chamber bottom, perforated, and having a cylindrical shell in the middle, installed at the point of connection of the air distribution channel to the duct, and windows are made in the shell, Equipping the 1st with swiveling bindings. Moreover, dampers can be made in the form of blades. The perforation of the bottom in the zone of the discharge opening can be made in the form of guide louvers located. perpendicular to the radius passing through the center of this hole. In addition, the chute is provided with a stopper, and the blades - stops. FIG. 1 schematically shows a vented bunker; in fig. 2 - pneumophelosis. The ventilated drying bin contains an annular chamber 1 formed by outer 2 and inner 3 perforated cylinders, with a flat perforated bottom 4 and a discharge opening 5, the central air distribution channel 6 connected through duct 7k to fan 8 and equipped with a movable valve 9, open from above pneumogun 10, diametrically placed under the dial 4 and having a shell 11, installed in the place under the key of Channel 6 to the duct 7. 8 loop 11 has windows 12, equipped with butterfly valves, made blades 13. The fuse hood 10 has a stopper 14, and the blades 13 have a stop 15. The perforations of the bottom 4 in the zone of the discharge opening 5 are made in the form of guide louvers perpendicular to the radius passing through the center of the hole 5, with all the flaps vented bunker entity operates as follows. The rotary pneumopulse 10 is secured with a stopper 14, the windows are closed with 12 blades 13 and the discharge opening 5 with a flap. The material is loaded into the chamber 1. The fan 8 is turned on and through the air duct 7, the shell II and the duct 6 the air is blown through the layer of material that is in the drying bin. After the end of ventilation, the blades 13 are turned and the windows 12 are opened, the valve 9 is lowered to the lower position (shown in Fig. 1 by a dotted line), the discharge opening 5 is opened and the material is released by gravity. During material release by gravity, the material in the unloading zone is intensively diluted with air passing through the pneumode 10, which facilitates its rapid unloading. When the intensity of the material unloading from the chamber 1 falls, the pneumodal pulp 10 is removed from the stopper C and the bunker is unloaded until it is completely cleaned. During this period of operation, the following occurs: the air flow moves through the duct 7, hits the closed valve 9 and, moving through the windows 12 in the shell 11 to either side of the pneumodalude 10, hits the rotary blades l3 and begins to rotate the pneumodal 10. The air exiting through the remaining layer of material located on the bottom 4 of the chamber 1 guides it to the discharge opening 5 along that part of the bottom, which is made in the form of guide louvers. Thus, the material leaves the drying bin intensively displaced, as it is blown with air both during the ventilation period and during the discharge period, which has a positive effect on the intensity of heat and mass transfer and the increase in moisture removal. Claim 1 Inventory "I dry tank" containing an annular chamber formed by two concentrically arranged perforated 1 "1 cylinder with a flat bottom and a discharge opening, and a central air distribution duct connected by means of an air duct to a fan that is different in order to reduce power consumption and to simplify the unloading operations, the dryer bin further comprises an open-to-top rotary pneumoduct, diametrically spaced under the bottom of the chamber, perforated It has a cylindrical shell installed in the middle at the point where the air distribution duct is connected to the duct, and windows with rotary valves are made in the shell. 2. The dryer hopper according to claim 1, differs from the fact that the shutters are made in the form of blades. 3. The dryer hopper according to claim 1, characterized in that the perforation of the bottom in the area of the discharge opening is made in the form of 8 rolling slats, perpendicular to the radius passing through the center of this opening. 4 o Bunker dryer on PP. I and 2, characterized in that the pneumoglobe is provided with a stopper and the blades with stoppers. Sources of information taken into account during the examination 1. USSR author's certificate No. 713550, cl. A 01 F 25/08, 1976. 2. USSR author's certificate number 609042, cl. F 26 B 15/04, 1975.