SU602755A1 - Device for drying fluent materials - Google Patents

Description

one

The invention relates to a drying technique, namely, installations for drying bulk materials, such as cotton seeds, and can be used in various industries.

Installations for drying bulk materials are known, which contain a multizone dry tunnel with autonomous heat ventilation equipment in each zone and moved along that 1N tank.

with dried material LlJ.

The air heated in the steam heaters is supplied by a fan to the drying zone, where the material to be dried is washed from top to bottom. Then, in flooring, which is two boxes of variable cross section, facing each other with wide ends, the air will mix its direction 18O and evenly distributed along the length of the trolley, blowing the material on the second pair of bodies. up. Further, due to the similar shape of the dryer ceiling, the air again changes its direction by 180 ° and is equal to: the epno washes the material down from the third

a pair of (carts) carts - Then through the side recirculation channels the air flows to the fan. Part of the exhaust air is thrown out, and the same amount of fresh air is sucked in together.

As the carts pass through the drying zones, the direction of the blower changes. coolant, which creates additional conditions for uniform drying. The body of the dryer has side and ceiling labyrinth seals in the form of flexible heat-resistant aprons, which, when the carts mix from the nominal position along the length of the dryer, create labyrinth seals with face plate f tpshezhki that impedes the movement of air along the dryer and provides aerodynamic independence of the adjacent zones.

Claims (2)

The adopted air recirculation scheme in the zone with partial exhaust of exhausted air and suction freshly (by adjusting K1Ts ishbers) makes it possible to create and automatically support the required IGH and iridescent mode. The dryer loading tray prevents the release of hot air into the workshop when loading carts through the installation and continuous operation of an exhaust fan that sucks up a hot one. air leaving the first zone through tepkkki with material. In the described device, the drying time is determined by the trolley movement through the tunnels, which ensures the same residence time in the dryer of all elements of the material being dried. The installation allows organizing autonomous different temperature drying zones with the heat and aerodynamic conditions specified in each zone, in accordance with the theory and npaKTVwofi drying of this particular material. However, the design of this installation does not allow drying of loose materials, but is mainly used for drying lump meters. Chips for piece materials: bricks, packaged panels with shedding, fruit panels. Ps-ed is drying;)) Attenups are decoupled with the gaps on the perforated half-boxes that set the trolley sohodka. This installation / Ie provides the MOJicitocTb flow of heat to the layer and blowing loose NiaTepHana in the layer, For these reasons, despite the specified benefits, and the first} tunnels are not suitable for bulk materials. In order to increase, economy and productivity of the drying unit, each tank is designed as a bunker. vertical ne |); 1) Orirov hp L1m partitions inside, forming a central and) external slit channels connected in adjacent aoitax in alternate order, respectively, to the suction1.1 and the junction and magnetic line of the ventilating equipment, and and tatep lines are made in the side walls of the tunnel and are combined in the bristle zone after moving the bins and their fixation with the corresponding channels. FIG. 1, the described installation, horizontal cut} in FIG. 2 is a section along A-A in FIG. 1; at ir, 3 section bb in fig. 1. Installation of tunnel tunnel 1, loading platform 2, drying zones 3, movable bunker 4 with loose material; material 5, fixed channels b, located in the side walls of t pshel, movable channels 7 formed in a stirred bin 4. perforated vertical partitions 8; labyrinth reinforcement consisting of a fixed part 9 and a movable part 10 fixed on a movable bunker 4, a rail hanging track 11 a heat generator 12, a centrifugal ventilator 13, a suction 14 and an exhaust 15 ducts with control valves 16, a door 17 of the loading platform 2 and a door 18 for unloading material. The installation works as follows. Bunkers 4, filled with them, for example cotton seeds, are placed in front of the loading platform onto the rail tracks 11. Since the installation is fully automated, this allows loading of wet material and unloading of dry material, as well as maintaining thermal and moisture regimes in the entire zones, i.e. tyuiKy, performed by a given npoj frame. After the specified time interval has elapsed, the door 17 of loading platform 2 opens and the hopper 4 moves to the first zone of the tunnel - the actual zone 3. The air heated by the heat generator, jl2 to a predetermined temperature (100-120 C), using the exhaust duct 15 through the fixed channels 6, located in the walls of the tunnel 1, enters the channels 7 of the movable bunker 4 formed by perforated vertical barriers 8, blows through the layer of dried material 5 and out of it through the adjacent channels 7 of this bunker. Exhaust air through fixed channels 6 placed in the opposite wall of the tunnel .1 and sucked in through the suction duct 14 for recirculation. Channels b and 7 in the movable bunker and in the walls of the drying tunnel during the stay of the bunker 4 in the latter coincide, which ensures a uniform blowing of the layer / material and its uniform drying. Labyrinth seals 9 and 10 provide aerodynamic autonomy of operation of zones 3 and the possibility of operation of adjacent drying zones with different heat and humidity conditions. After a certain drying time has elapsed, the hopper 4 moves to the next drying zone 3. In this zone, the direction of blowing the heat sieve through the dried material changes. The fixed channels 6, which in the first zone, whether suction, in the second zone, become discharge. The drying process is repeated in the second zone in the same way as the first, with the above changes. At the time of each transfer of the bins, one bunker from the loading fraM6jpa2 enters the tunnel 1, and the other bunker 4 with the dried material 5 leaves the tunnel 1. The described drying unit allows 1 em paBHONiepiio 11 quickly dry loose and, especially, loose bulk materials, such as, for example, cotton seeds, for which drying plants are generally absent. The constructive Olochnaya installation scheme (blocks - chambers) allows you to create them of any performance, and the possibility of organizing a scientifically grounded step-by-step drying mode ensures a high intensity of the process. Claims 1. Apparatus for drying bulk materials, for example cotton seeds, containing a multiway drying tunnel with an automatic heating equipment each zone and moving along the tunnel capacity with the material to be dried; The fact that, with a chain of economy and increase in production, the capacity is made in the form of 6yHKeiia with vertical perforated iiepoiOp ..; inside, forming the central and peripheral slotted channels, placed in the adjacent zones alternately In order of this, respectively, to the suction and injection lines of a heat extraction equipment. 2. Installation according to claim 1. that tl and h and shch so that suction and iiainitalnye lines are made in the side walls of the tunnel and are combined in each zone, and O (ne movement of bunkers and their fixation, with appropriate channels. Sources information taken into account during the examination: 1. Copyright certificate № 457858, class F 26 В 13/02, 1971. 7Ш / гИР / J-a i  mw i & / / oT / o /. ten / / / .. Fig 2