SU976892A1 - Apparatus for cooling loose material - Google Patents

Description

one

This invention relates to agriculture, as well as to construction.

A device for cooling and drying bulk material is known, which is a bunker with double lattice walls. Bulk material is poured into the hopper, cold dry air is blown through its mass, and this results in cooling and drying of material 1.

A disadvantage of the known device is the high labor intensity of the work of cooling and drying the material.

It is also known a device for cooling bulk material, including a shell filled with a refrigerant, and a cooler mounted on the housing.

The coolant is cooled in the cooler, becomes more dense and under the action of its own weight sinks to the bottom of the housing. From contact with the hull corners, the cooler heats up, becomes less dense and is forced upwards all the time by the dense coolant coming from the cooler. There is a coolant circuit. Heat from the bulk material mass through the walls of the housing is taken in by a coolant, is carried away to the cooler, through the walls of which is discharged to atmospheric air 2.

The purpose of the invention is to increase the efficiency of the device by lowering the moisture content of the bulk material.

This goal is achieved by the fact that in the case of the known device there are windows, closed with an osmotic film for passing moisture through it, and the cooler is equipped with a pressure stabilization chamber in the device.

The drawing shows a device for

cooling of the bulk material, side view.

The device consists of a housing 1 with culvert windows 2 ,. a cooler 3 with an opening closed by a stopper 4, and a pressure stabilizing chamber 5. In addition, the drawing shows the array 6 bulk material, the surface 7 bulk material,

Claims (2)

20 initial level 8 cooler in the device, the upper level 9 o. Cooler in the device, the cavity 10 is free from the cooler. Window 2 is closed with an osmotic film, for example, polymer - kolodiyevoy. The device works as follows: The device is inserted into the bulk material mass 6 by one of the known methods: blocking, pressing, vibrating immersion, etc. Remove the plug 4 from the hole. A minimum volume of pressure stabilization chamber 5 is provided by compressing the corrugations, if it is made corrugated, or lowering the piston down, if it is made in the form of a cylinder with a piston. Pour cooler through the hole. As a cooler, a concentrated solution of the substance can be used, in particular salt, for example, cooking. Close the opening with plug 4. The coolant begins to circulate in the device. The coolant cooled in cooler 3 becomes more dense and therefore more heavy. Under the force of gravity, it sinks to the bottom of the housing 1, heats up from the walls of the housing 1 and becomes less dense, and therefore lighter. New portions of the dense coolant coming from the cooler, the lighter coolant is forced upwards. There is a natural circulation of coolant in the device. Heat from the bulk material mass 6, coming through it through the walls of the housing 1, is collected by the coolant and is carried to the cooler 3. Through the walls of the cooler 3, heat is transferred to the atmospheric air. The bulk solid mass is cooled to ambient air temperature. At the same time, the bulk material is being drained. Moisture in bodies is transported according to two principles: from the place of the more humid to the place of the less humid and from the place of the warmer to the place of the colder. The temperature of the walls of the housing 1 is lower than the temperature of the surrounding bulk; , material. Moisture from the array 6 of bulk material flows to the walls of the housing 1 and flows down them. On its way, the drops of flowing moisture meet an osmotic film 2. Osmotic moisture penetrates through the walls of the film 2 into the interior of the housing 1. Moisture entering the coolant moves along with the coolant. As a result, the humidity at the surface of the housing 1 becomes less than in the surrounding layers of bulk material. There is a difference in the amount of humidity in the array 6 and at the housing 1. Due to this, the intensity of moisture movement to the housing 1 increases. Due to the continuous entry of moisture into the coolant, two phenomena occur: the concentration of the solution of the substance decreases and the level of coolant in the cooler increases. This reduces the volume of the cavity 10 free of coolant. Pressure rises in cavity 10. An increase in pressure is caused by movements in the pressure stabilization chamber 5. The corrugations open, the volume of chamber 5 increases, the pressure levels out. When the coolant reaches the upper level 9, remove the plug 4, lower the coolant level, and drain the excess through the holes. A soluble substance is added to restore the initial concentration of the solution. When the cooler reaches an initial level, the opening is closed with a stopper 4. The proposed device, in comparison with the prototype, produces not only cooling, but also drainage of the bulk material. In addition, the cooling rate of the bulk material rises, as heat to the coolant flows not only through the walls of the housing 1, but also with moisture that penetrates through the film 2. The invention The apparatus for cooling the bulk material, including the housing fixed by the refrigerant, and the cooler fixed on the case, characterized in that, in order to increase the efficiency of the device by reducing the moisture of the bulk material, the case is made with windows covered with an osmotic film to pass through it logs, and the cooler is equipped with a pressure stabilization chamber in the device. Sources of information taken into account during the examination 1. Kopp L. I. Processing and storage of seed grain. M., “Kolos, 1974. 2. Recommendations for the design and installation of vapor-liquid cooling plants during construction in harsh climatic conditions. M., NIIOSP, 1977.