HU191936B - Ventilating platform for corn receiver - Google Patents

Abstract

The subject of the proposal is a vented bed ophthalmic material containers. For this fan connectable main channel and crosswise have branch taps, where the main and secondary channels are connected at each of the locations there are bit-blocking closure units for closing as well as the side channels equipped with an air outlet on both sides. The essence of the proposal is that the closing units (7) as a closure associated with an actuator (8) are provided with actuators (8) for central control unit (18) connected. In addition, the secondary channels (II) two-way air outlets (12) are longitudinal are formed as slots that are slanting from the top side downwards a plate (13) having a free end of the opening (12) drawn horizontally through the bottom edge closes a dart (dc). (Figure 1)

Description

BACKGROUND OF THE INVENTION The present invention relates to a ventilating platform, which is particularly applicable in the permanent storage of agricultural grain products.

Agricultural grains are known as "living materials" because they breathe, meaning they take in oxygen from their environment, release carbon dioxide, and produce heat. Agricultural practice has long recognized the need to ventilate stored grain, which was previously solved by simple rotation.

The so-called advanced technologies active ventilation is used, in which the air between the grains is exchanged without moving the grain. To do this, pressurized air is circulated through the grain. Blown ambient air lowers grain temperature, moisture content, slows down the growth of pests and insects, and helps preserve quality.

The aforementioned active ventilation is used in silo systems as well as underground warehouses. For example, the .Grain Industry Manual (Agricultural Publisher, Budapest, 1970, pp. 241-243) or the Agrotrust and MÉM Technical Institute. Notices on Technical and Economic Studies of Production Technologies deal with active ventilation and known ventilation floors. Storage of grain maize c. (No. 118, 1980), which reports the experimental results of ventilation and discharge equipment known as .SZLB-I and .SZLB-II.

Also known as the commercially available .TSZP-II ventilating floor, which is exclusively for ventilating the garmada.

A common feature of the above-mentioned ventilation decks is that they are mobile or properly installed structures on the floor in the decks. They consist of main and perpendicular branched channels. The main duct is usually of a permeable size and is associated with a pressure blower. The side ducts have air vent perforations on both sides. They seek to locate and distribute them in such a way that the bottom layer of the grain is ventilated, while avoiding the grain entering the side ducts and even air distribution within the cluster - the more the openings are closer to each other. The fan, which can be detachably connected to the main duct, usually has a chassis that can be rolled on wheels, so that it can be used alternately for several ventilation systems. The temperature and relative humidity of the exhaust air are controlled by instruments. When connecting the main and auxiliary channels, manually operated sliders are provided which, depending on the data measured, may optionally close or open one or more auxiliary channels entering the main channel.

A common shortcoming of the known solutions is that, based on practical experience, such manual closing and opening of side ducts imposes an increased burden on the operating personnel. On the other hand, in order to achieve uniform ventilation of the grain, the perforation of the air ducts in the side ducts must be made too dense. The openings in the perforation are partially blocked, or in some places the grain product may enter through the openings, which is also undesirable. Another drawback of known ventilation floors is the excessive use of energy.

It is an object of the present invention to overcome the above shortcomings, i.e., to provide an energy-efficient ventilation floor which is simpler and less expensive in terms of construction and minimizes the burden on the operating personnel.

The set task meoldásához starting from a known szellőzőpadozatból which are ₂₅ has connected fan main channel and which transversely branching side channels, wherein sites of the main and secondary channel connection completion of the side channel separately open or opening are arranged, and the side channel _3Q clamping units enable they are provided with air outlets on both sides. This was further developed in accordance with the present invention in that the closures are provided with actuators ₃ g of sealing plates where the actuators are connected to a central control unit and the air outlet openings of the auxiliary channels are formed as longitudinal slots covered by a slant encloses a pointed bevel with a horizontal line across its lower edge.

It is desirable to have a design in which the longitudinal slots of the side ducts and the plate covering them are formed by cutting and bending the side panel of the side duct. Preferably, the acute angle value is always less than the natural slope of the grain product. This allows, on the one hand, a very simple and inexpensive construction and, on the other hand, reassuringly prevents the grain product from entering the interior of the duct. The actuator may be, for example, a pneumatic cylinder which is preferably arranged in the connection port of the main channel for the secondary channel.

The invention will be described in more detail with reference to the drawing, which shows an exemplary embodiment of the ventilation floor of the invention. In the drawing:

Figure 1 is a perspective view of a pers65 ventilation floor in a hall storage;

-2191936

Figures 2 and 3 illustrate parts of the solution of Figure 1 on a relatively larger scale;

Figure 4 is a cross-sectional view of the detail of Figure 3.

As shown in Fig. 1, the ventilation floor has a main duct I and auxiliary ducts II perpendicularly branched therefrom. The main duct I is connected to a fan 1 via 2 intermediate pieces. The fan 1 pushes ambient air into the main duct I and in this case is provided with a carrier trolley 3.

The main duct I consists of sealed elements 4 and 5, of which each second element 5 is provided with 6 connection stubs for connection of the secondary ducts II (Fig. 2).

The end of the coupling 6 is closed or opened by a locking unit 7 formed as a tilting plate, the actuator 8 of which is in this case a pneumatic cylinder. This is arranged inside the connector 6. The order in which the elements 4 and 5 of the main channel I follow each other depends on the dimensions of the respective storage space 9.

The auxiliary channels II connected to the elements 5 of the main channel I extend completely across the storage space 9 (Fig. 1). The ductwork channel II can be assembled from elements 10, each of which is provided with an adapter pin 11 on one end and a receiving hole (not shown) on the opposite side (Fig. 3).

Elements 10 of the auxiliary channel II (Figures 3 and 4) according to the invention have a longitudinal slot on their side walls as an air outlet 12, which is covered by a plate 13 from above. The plate 13 is inclined downwardly away from the side panel and its end encloses an acute angle α at the lower edge of the opening 12 by drawing it horizontally (Fig. 4). The plate 13 prevents the crop from entering from above into the auxiliary channel II, since the value of the acute angle α is chosen to be at most equal to the natural incline of the stored grain product. For example, in the case of maize, the value of α was 37 °.

The pressure of the crop on the auxiliary passages II is absorbed by the panel 10 of the elements and the braces 14 welded thereto.

The outermost members of both main channel I and auxiliary channels II have an end plate at their free ends.

Elements 4 and 5 of main channel I are provided with shields 15 (Fig. 2). Below, for example, the power lines of the actuators 8 can be mounted when installing the ventilation floor.

In the storage space 9, the temperature of the crop set is measured by heat sensors 16 arranged in a mesh-like arrangement, which are arranged at the lower end of a support tube 17 hinged at its upper end. Due to their articulated suspension, the holding tubes 17 can be folded up, for example, so as not to obstruct traffic in the empty storage hall. Inside the holding tubes 17 is a line of heat sensors 16 which are protected against mechanical damage.

The actuators 8 of the closing units 7 and the heat sensors 16 are connected to a central control unit 18. The control unit 18 may be equipped, for example, with a known programmable small computer which, in appropriate air conditions, automatically transmits the ventilation air to the storage space 9 by opening the closing unit 7 of the corresponding auxiliary conduit II. do. Thus, the operation of the unit can be automated, which enables very energy efficient operation. The control unit 18 may also be equipped with a known display or display unit.

With the recommended ventilation platform, the grain can be stored up to 18-20% moisture, which offers significant benefits. Most importantly, according to our experimental measurements, the throughput of the dryer can be increased by 20-25% and at least 25% of fuel oil can be saved compared to known solutions. In this way, the overdryer of the grain product can be eliminated, thereby preserving its total content without any cracking or fragmentation, which also results in increased resistance.

In the above embodiment the fan 1 ventilates the grain product by supplying ambient air. This result can be achieved by a substantially smaller amount of 1/10 air if the fan 1 is replaced by a cooler equipped with a pressure blower which supplies cooled air to the system. The cooled air slows down the respiration of the grain.

Claims (3)

PATENT CLAIMS 1. Ventilation platform for grain containers having a main fan-connected duct and transverse-branched auxiliary ducts, wherein at the junctions of the main and auxiliary ducts are provided closures for securing the ducts separately, and auxiliary ducts having the closure units (7) being formed as a shutter plate associated with the actuator (8), the actuators (8) being connected to the central control unit (18), and the double air outlet openings (12) A plate (13) extending obliquely downward from the side panel 3191936, the free end of which is enclosed by a horizontal barb (oc) drawn through the lower edge of the arrow (12). Ventilation floor according to claim 1, characterized in that the openings (12) of the auxiliary channels (II) and the downwardly sloping plate (13) covering it are formed by bending the side panel of the auxiliary channel (II), oc) is less than the natural slope of the grain to be stored. Ventilation platform according to Claim 1 or 2, characterized in that the zero unit (7) is designed as a tilt plate and the actuator code unit (8) is a pneumatic cylinder which is connected to the main channel (I) for the auxiliary channels (II). ) are arranged.