RU1136U1 - Device for drying bulk materials - Google Patents

Abstract

A device for drying bulk materials containing a fan, a housing with an air duct and a gas distribution grill located above it, characterized in that a parallel slit is made at the end of the air duct from the discharge side near the gas distributor.

Description

DEVICE FOR DRYING BULK

The invention relates to the field of drying, and in particular to devices for drying bulk materials, mainly grain crops.

Known devices for drying bulk materials containing a fan housing with a gas distribution grill located at an angle to the horizon. / See, for example, Japan patent No. 6318111 M.cl P 26 V 17/10 /.

In this device, bulk material is loaded onto the gas distribution grill, where the material is dried by air circulation, and gradually rolls from the grill into the discharge zone.

The proposed method differs from the known ones in that the openings of the gas distribution grill are made with an inclination towards the discharge of bulk material, and in the housing at the place of discharge

height-adjustable dampers, which are used to drain the dried material into the hopper. An air duct with a variable cross section is made under the gas distribution grill, the cross-sectional area of which decreases along

M.cl F 26 in 17/10 MATERIALS

direction of nozzles. Inside the duct, partitions are made airtight to each other. In addition, in the casing at the end of the duct at the discharge point near the gas distribution grill, the slot is parallel to it.

Gas distribution gratings of devices have not been previously performed

for drying bulk materials with inclined nozzles, the sliders in the casing of the device for drying bulk materials at the place of unloading have also not been previously performed. Also, air ducts with variable cross-section inside of which are sealed against each other are made, and were not used in devices for drying bulk materials with a gas distribution grill, and at the end of the duct at the discharge point, a parallel slit of the gas distribution grid was not fulfilled.

Figure 1 shows a General view of the device,

figure 1: housing 1 in the form of a box, inside of which there are six horizontal drying sections 2f separated by partitions 3f that are supported by a gas distribution grid 4, nozzles with a nozzle 5 are made with a back (lnrM | a, discharge side. Below, under the gas distribution grid an air duct 6 of variable cross-section is located, divided by partitions sealed against each other 7. Air is supplied by a fan 8 through a socket 9, also divided into separate sections 10 formed by partitions 11. Air supply ha in each drying section is regulated by the Slonkas 12. In the housing 1, discharge gates 13 and 11 are mounted in the direction of the nozzles and parallel to the rear grill 4 and the connecting cavity of the duct 6 with the atmosphere.

The device can additionally be equipped with a heater or a heat generator for heating the air used to dry bulk material.

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The device operates as follows,

A specific layer of granular material is loaded into each drying section 2 / | For example, a grain 0.5 m thick is loaded on grass grains or seeds. The fan 8 is turned on and air enters the duct 6, due to the fact that the duct 6 has a variable air pressure cross section throughout the gas distribution lattice 4 will be the same. When the bulk material is dried, the gate 13 opens and, thanks to the nozzle of the gas distribution lattice 4, they are made inclined in the direction of flow of the flowing bulk material, an oriented du1any potok5za through which proizhodit and unloading bulk materiala.Vozdushny flow exiting from the slot 14 facilitates unloading of the bulk material.

With a small moisture content of the bulk material, continuous operation is possible; in this case, the movement speed of the bulk material is controlled by gates 13.

Compared with the dryers currently in use by dryers /, for example, dryers SZU 6A, SZSB-bA, SBVS-5 / the proposed device for drying bulk materials has a large capacity of up to 30 tons per day, the possibility of drying more wet bulk material / , for example, grain with a moisture content of 20-24 5: {, / without loss of quality, greater versatility and ease of use

Posted by: / I, .. M. Buchnev

Claims (1)

A device for drying bulk materials containing a fan, a housing with an air duct and a gas distribution grill located above it, characterized in that a parallel slit is made at the end of the air duct from the discharge side near the gas distributor.