UA8738U - Installation for drying bulk material, mostly grain - Google Patents

Abstract

An installation for drying bulk material, in which the walls of the outer and the inner housings are in perimeter arranged with vertical rows of horizontal slot openings equipped with inclined shelves, at that at the inner housing the inclined shelves are placed over the slot openings and directed downward and inside the slot chamber with closing the slot openings, at the outer housing the inclined shelves are placed under the slot openings and directed upwards and to inside of the drying chamber; at that each inclined shelf of the slot opening of the outer housing is equipped with a flat reflector of bulk material installed at angle downwards and inside the drying chamber with overlap with the upper edge of the inclined shelf placed lower; and the re-dispenser of the bulk material is arranged as fixed with alternation, at the inner and at the outer housings, inclined shelves directed downwards and inside of the drying chamber with closing at least a half of the cross-section of the drying chamber.

Description

Description of the invention

The useful model refers to the technique of drying bulk materials, mainly grain and seeds of 2 agricultural crops, and can be used in agriculture, chemical, food and other industries.

A well-known plant for drying grain of the company "Pe 51 Sgoyr", USA (see the instructions for installing the tower dryer "Z51"), which contains a vertical external cylindrical perforated body and a concentric vertical internal cylindrical perforated body installed in it. The inner and outer casings 70 form an annular drying chamber connected at the top with the loading hopper, and at the bottom with the unloading hopper and equipped with a grain flow redistributor. At the same time, the walls of the outer and inner casings of the installation are made in the form of a grid formed by round holes, and the redistributor of the grain flow is placed in the middle part of the drying chamber.

The known installation has the following disadvantages. Due to the execution of the wall of the outer casing in the form of a grid, the installation 12 is not protected from the impact of atmospheric precipitation inside, which makes it necessary to make it from materials resistant to corrosion, for example, stainless steel, galvanized steel, which make the installation more expensive.

If the drying of grain is carried out during atmospheric precipitation, the impact of precipitation in the chamber leads to an increase in the humidity of the processed material and the need to increase the drying time, which reduces the productivity of the installation. In addition, the holes in the wall of the outer casing, which form a grid, due to their small size, due to the size of the processed grain, are subject to clogging with waste (husk) grain and require periodic cleaning, which is a rather time-consuming process. The construction of the inner casing wall in the form of a grid causes direct contact of the grain, which moves along the inner casing, with its hot wall, resulting in overheating of the grain in this area, its overdrying and even damage. In general, due to this design of the installation, the column of grain passing through the drying chamber heats up unevenly: near the inner case, the wall of which has a high -o temperature, the grain layer overheats, and near the outer case the grain is not dried. The presence of one redistributor of the grain flow in the middle part of the drying chamber is insufficient to obtain uniformly dried grain at the exit.

The basis of a useful model is the task of creating such an installation for drying bulk material, mainly grain, in which a new structural design of the outer and inner housings, as well as the drying chamber, would allow for uniform drying of the material, to exclude its underdrying in the area of the outer housing and overheating and damage in the area of the inner casing, as well as to provide protection - installations from hitting the interior of atmospheric precipitation. Gee)

The problem is solved by the fact that in the installation for drying bulk material, mainly grain, which contains a vertical outer cylindrical perforated body and a concentrically vertical inner cylindrical perforated body installed in it, which forms with the outer body an annular drying chamber connected at the top with a loading hopper , and at the bottom with an unloading hopper, at the same time, the ring drying chamber is equipped with a redistributor of the flow of bulk material, according to the useful model, the walls of the outer and inner casings along the perimeter are made with vertical rows of horizontal slit holes equipped with inclined shelves, and the inclined shelves are located on the inner casing above the slotted holes and directed downwards and into the drying chamber with an overlap

From" the slotted holes, on the outer casing, inclined shelves are located under the slotted holes and are directed upwards and into the drying chamber, while each inclined shelf of the slotted opening of the outer casing is equipped with a planar reflector of bulk material, installed at an angle downward and inside the drying chamber, overlapping the upper edge of the located below the inclined shelf, and the bulk material redistributor is made in the form of alternately fixed on the inner and outer casings of the inclined shelves, directed downwards and into the drying chamber, overlapping at least half of the drying chamber cross-section. o The essence of the installation for drying bulk material, mainly grain, is explained by the figures presented in Figure 20. Fig. 1 shows a general view of the installation for drying; in Fig. 2 - a section along A-A of Fig. 1; on

Fig. 3 - node I of Fig. 1; Fig. 4 is a section along B-B of Fig. 3.

The installation for drying bulk material, mainly grain, contains a vertical cylindrical outer casing 2 mounted on a support 1 and a concentric vertical cylindrical inner casing 3 installed in it. The outer casing 2 and the inner casing C form a vertical annular drying chamber 4,

So" located in the upper part of the installation, and the annular cooling section 5, located under the drying chamber 4 and connected to it.

The drying chamber 4 is connected to the loading hopper 6, located in the upper part of the installation, and through the cooling section 5 to the unloading hopper 7.

The walls of the outer 2 and inner Z housings are made of flat elements 8 and U of rectangular shape. 60 Flat elements 8 have the same size, flat elements 9 are also made of the same size. Along the perimeter, flat elements 8 and flat elements 9 are connected to each other and to each other by means of vertically installed partitions 10.

The walls of the outer case 2 are equipped with vertical rows of horizontal slotted holes 11 located along the perimeter of the case 2. Each slotted hole 11 is equipped with an inclined shelf 12, connected along its entire length to the lower edge 13 of the slotted hole 11 and directed upwards and into the drying chamber 4.

Each inclined shelf 12 is equipped with a planar reflector 14 of bulk material, installed at an angle downward and inside the drying chamber 4 with an overlap of the upper edge located below the inclined shelf. At the same time, the bulk material reflector 14 is either connected to the upper edge 15 of the inclined shelf 12, or fixed on the wall of the outer housing 2 above the upper edge 15 of the inclined shelf 12. The inclined shelves 12 with the bulk material reflectors 14 are closed from the side ends by slats 16.

The walls of the inner body C are also equipped with vertical rows of horizontal slotted holes 17 placed along the perimeter of the body 3. Each slotted hole 17 is equipped with an inclined shelf 18 connected along its entire length to the upper edge 19 of the slotted hole 17 and directed downwards and into the drying chamber 4. 7/0 Inclined shelves 18 are made with elongated lower edges 20 that cover slotted holes 17. Inclined shelves 18 are closed from the side ends by slats 21.

The drying chamber 4 has a redistributor of the flow of bulk material, made in the form of annular inclined shelves 22, directed downwards and inside the drying chamber 4 and fixed alternately on the outer 2 and inner Z bodies. Each inclined shelf 22 overlaps the section of the drying chamber 4 at least /5 in half.

A heat generator 24 with fans and a burner is fixed in the cavity of the inner housing C at the level of the lower part of the drying chamber 4 with the help of brackets 23.

The operation of the installation is carried out as follows

Bulk material, such as grain, is fed into the loading hopper b and under the influence of its own weight passes down into the drying chamber 4, where warm air is supplied from the heat generator 24 through the slotted holes 17 of the inner casing. Exhausted air enters the atmosphere through the slotted holes 11 of the outer casing 2.

The layer of grain, which is near the wall of the inner case C, heats up and dries up faster. When the grain passes along the inclined shelves 22 of the redistributor, the grain periodically changes its position: more dried grain along the inclined shelves 22, fixed on the inner housing З, enters the zone of the outer housing 2, and less dried grain moving along the outer housing 2 inclined shelves 22, o, fixed on the outer casing 2, enters the zone of the inner casing 3. In this way, the grain during the drying process moves wave-like from the wall of one casing to the wall of the other casing and dries evenly. At the same time, the inclined shelves 18 and reflectors 14 do not allow the grain to enter the slotted holes 17 and 11, respectively. To village

In addition, the inclined shelves 18 prevent the grain from contacting directly with the hot wall of the inner casing 3, thereby protecting the grain from overheating and damage caused by it. at

The dried grain from the drying chamber 4 enters the cooling section 5, where it is cooled by the air that M is pumped into it with the help of fans through the slotted holes 11 of the outer casing 2, and then moves to the unloading hopper 7.

If the drying of the bulk material takes place during atmospheric precipitation, the precipitation, falling into the slotted openings 11 of the outer casing 2, is retained by the inclined shelves 12 and flows down them to the outside. Thus, the processing material, which passes along the wall of the outer casing 2, is not additionally moistened.

The installation of such a structure allows you to obtain evenly dried material without overheated and under-dried inclusions, which is especially important when drying grain and seed material. The exclusion of atmospheric precipitation inside the drying chamber allows not to increase the drying time of the material when the installation is operating in wet conditions, and, in addition, makes it possible to manufacture the installation from ordinary metal, which;" significantly reduces its cost. (ee) -I (95) so 70

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Claims (1)

The formula of the invention "Installation for drying bulk material, mainly grain, containing a vertical outer cylindrical perforated body and a concentrically vertical inner cylindrical perforated body installed in it, which forms with the outer body a ring drying chamber, connected "" at the top with a loading hopper, and at the bottom with a unloading hopper, at the same time a ring dryer " . . . . . the chamber is equipped with a redistributor of the flow of bulk material, which is distinguished by the fact that the walls of the outer and inner casings along the perimeter are made with vertical rows of horizontal slit holes, so 35 are equipped with inclined shelves, and on the inner casing the inclined shelves are located above the slit holes and directed downwards and inside the drying chamber with the overlapping of the slotted openings, on the outer -I casing, inclined shelves are located under the slotted openings and directed upward and into the drying chamber, and at the same time, each inclined shelf of the slotted opening of the outer casing is equipped with a flat reflector of bulk material, installed at an angle down and inside the drying chamber with an overlap of the upper edge c 20 located below the inclined shelf, and the bulk material redistributor is made in the form of inclined shelves fixed alternately on the inner and outer housings, directed downward and inside the drying chamber with an overlap of at least half of the chaff cross section of the drying chamber. Official bulletin "Industrial Property". Book 1 "Inventions, useful models, topographies of integrated shu o5 microcircuits", 2005, M 8, 15.08.2005. State Department of Intellectual Property of the Ministry of Education and Science of Ukraine. 60 b5