RU15007U1 - DRYER FOR MATERIALS - Google Patents

Description

Device for drying materials

The utility model relates to equipment for drying ground materials, mainly susceptible to thermal degradation, and can be used as part of technological lines for the manufacture of composite materials, drying building materials, such as ground wood, carboxymethyl cellulose and others.

Known drying apparatus, which is an aggregate straight-through-fountain three-knee pneumatic dryer containing a device for supplying a drying agent, connected to a stern chamber made in the form of a three-knee vertically mounted coil and equipped with a sluice batcher for supplying raw material at the inlet, the first and second elbows are truncated cone, and the second has a cylindrical shape and is connected by a pipe with a separator of fine particles located at the inlet of the coil. The dryer is equipped with a cyclone and a hopper for dry material at the outlet (V.D. Arkhangelsky. Devices for drying loose wood. M., Forestry, 1970, pp. 37-50).

When used in technological processes of continuous operation, the known technological line does not provide the possibility of operational regulation of the technological process, has insufficient productivity.

A drying device is also known, including a hot air supply device connected in series with each other, a constant section pipe having a horizontally arranged part, equipped with a nozzle for introducing raw material and a vertically arranged part, the outlet of which is connected to a drying chamber having the form of two facing the bases of the truncated cones to each other, the lower cone is connected to the outlet of the pipeline, and the top cone is communicated by m pipe with Cyclops (VD Arkhangelsk. Apparatus for supzhi loose wood. M., Forest n yumyshlennost, 1970, pp. 37-50).

20 Q P

IPC 6 F 26 on 9/08

The known apparatus also does not allow to regulate the drying process and the final humidity of the product, and when using it requires additional equipment for storing the dried material.

Closest to the proposed one is a device for drying crushed materials, including a drying agent preparation and supply mechanism connected in series with each other, equipped with a feed regulator for the latter, an L-shaped cylindrical pipeline, the horizontal part of which is equipped with a nozzle for introducing the drying agent, an opening for input processed material and a container for collecting impurities, and the vertical part is made in the form of a coil and connected to a vertically mounted cam a swarm made in the form of a hollow body having the shape of two truncated cones directed by bases to each other and connected by means of a cylindrical shell, the top of the lower cone is connected to the outlet of the pipeline, and the top of the upper cone is connected to the discharge pipe for supplying flow to the cyclone (RF Certificate No. 966, IPC F 26 B on 9 / 08.1996).

The known device does not provide the ability to maintain a constant temperature during the drying process above the dew point, which is in some cases especially important.

The objective of the utility model is to expand the functionality by providing the conditions for the drying process at a constant temperature, reducing energy consumption.

The problem is solved in that the known device is placed in a thermally insulated casing, providing the ability to supply raw material and unloading the dried material.

The inventive device contains placed inside a thermally insulated casing sequentially connected to each other the preparation and supply of the drying agent, a cylindrical L-shaped tube dryer, the horizontal part of which is equipped with a nozzle for introducing a significant agent, an opening for introducing the material to be processed, its vertical part is connected to a vertically installed drying the camera.

made in the form of a hollow body, having the shape of two truncated cones, directed by bases to each other, connected by a cylindrical shell, the top of the lower cone is connected to the outlet of the pipeline, and the top of the upper cone is connected to the discharge pipe for feeding the flow into the cyclone, the lower part of the insulated casing equipped with input devices of raw material from the hopper-feeder and vgaoda of dried material, which is in communication with the discharge hopper of the cyclone. The mechanism for preparing and supplying a drying agent is implemented in the form of a fan and a heat exchanger communicated with each other. To further expand the functionality of the device, it may contain at least two cyclones connected in series to each other in a thermally insulated casing to separate the dried material into fractions.

Comparison of the proposed device with the prototype allows you to enter on the compliance of the proposed solutions to the criterion of "novelty, tk. a new constructive method is proposed - placing the device for drying the material in a thermally insulated casing, which allows us to solve the problem - to avoid reaching the dew point during the continuous drying process. This allows you to expand the range of dried dispersed materials, reduce energy costs for the drying process.

The inventive device can be composed of commercially available equipment known in science and technology. This allows us to conclude that the proposed solution meets the criterion of "industrial applicability.

The inventive device is illustrated in the drawing. The drawing shows a General view of a circuit diagram of the apparatus of the claimed device.

The device comprises a fan 1, a heat exchanger 2, a cylindrical tube — a dryer 3 with an opening for inputting the processed material (not shown in FIG.), A drying chamber 4, cyclones 5.6, a hopper-feeder of the processed material 7, an output device for the dried material 8, a device input of raw material from the hopper-feeder 9, located in the lower part of the insulated casing 10.

The inventive device operates as follows. The drying agent is fed by fan 1, the latter passing through the heat exchanger through the inlet pipe to the horizontal part of the L-shaped pipe-dryer 3. There, from the hopper-feeder 7, through the inlet of the pipe 3 of the dryer 3, material is supplied, for which wood is predominantly used sawdust, carboxymethyl cellulose and other similar materials. Particles of raw material are picked up by a stream of air and transported along the horizontal part of the pipe-dryer 3, and then along its vertical part, where drying occurs in turbulent mode. From the vertical part of the dryer pipe, the processed material enters the lower part of the drying chamber 4, where, as the flow moves upward, the axial linear velocity of the particles decreases. This allows small particles and particles that have lost a sufficient amount of moisture to enter the cylindrical part of the casing of the drying chamber 4, and heavy wet particles remain in the lower part of its casing. By adjusting the feed rate of the drying agent, the final moisture of the material can be adjusted. The dried particles are transferred to the upper part of the drying chamber 4, and then through the discharge pipe enter the cyclone 5. In the cyclone, the dried material is separated from the gaseous phase. The gaseous phase is ejected upward, and the dried material is removed from the heat-insulated casing 10 through the output device 8. To separate the dried material into fractions, a second cyclone 6 can be additionally placed inside the heat-insulated casing, which is also equipped with a device for outputting 8 dried material from the heat-insulated casing 10.

Placing the drying device in a thermally insulated casing allows to reduce unproductive heat loss to the atmosphere, to carry out the drying process in a constant temperature mode, for example, at the dew point, which is an essential factor in organizing a continuous drying process of materials such as carboxymethyl cellulose.

By proxy

Patent Attorney H.P. Golubeva

Claims (3)

1. A device for drying materials, containing a drying agent preparation and supply mechanism connected in series with each other, an L-shaped cylindrical dryer tube, a drying chamber and a cyclone, the horizontal part of the dryer tube provided with a nozzle for introducing the drying agent, an opening for introducing the processed material, its vertical part is connected to a vertically mounted drying chamber, made in the form of a hollow body, having the form of two truncated cones, directed by the bases to each other and connected nychny through a cylindrical shell, the top of the lower cone is connected to the outlet of the dryer pipe, and the top of the upper cone is connected to the discharge pipe for feeding the flow into the cyclone, characterized in that the supply mechanism of the drying agent, a cylindrical tube-dryer L-shaped, a drying chamber and the cyclone is placed inside a thermally insulated casing, the lower part of which is equipped with input devices for raw material from the hopper-feeder and the withdrawal of dried material from the cyclone.  2. The device for drying materials according to claim 1, characterized in that the mechanism for preparing and supplying the drying agent is made in the form of a fan and a heat exchanger communicated with each other. 3. The device for drying materials according to claim 1, characterized in that at least two cyclones are connected in series with each other in order to separate the dried material into fractions.