SU602756A1 - Device for drying heat-sensitive materials - Google Patents

Description

the plates 19 are of the type of corners and the hole 20 for outputting the wicks.

The device works as follows.

In the drying chamber 1, the material being processed 2 is first placed through a hatch 9 on supports 12 of a plug-in rigid frame 11 on which fabric wicks 4 are fastened, for example, from asbestos fiber and wicks 3 forming a system of branched rods. Then through the hopper 10 into the chamber 1 feed material, for example, a paste of microbial origin, which must be dried,

An inert granular coolant, such as sand, is poured into the chamber 5 with an inert coolant through the loading hatch (not shown in the drawings). Khaalers deliver hot gas, such as flue gases from a boiler unit or a gas furnace with a temperature of, for example, 120-300 s through the inlet lower branch pipe. The fixed bed of sand begins to fluidize, while the layer visibly expands in volume and washes the wicks 3 dipped into it in the form of a system of branched rods. The upper grill 7 prevents entrainment of fluidized bed particles during operation of the device. Moisture of the processed material 2 through the textile wick 4 and the outgoing wick m 3 moves into the fluidized bed 6, where due to intensive heat exchange between the layer and the terminals it quickly evaporates and is carried away with the effluent gas through the gas outlet box 8 / formed between the chambers using partitions (not indicated in figure 1), of which the bottom is made perforated.

This arrangement of the box improves the use of heat from the flue gases. The adhesion of the dried material8 1al to the bottom of chamber 1 (upper ne | rhO rod) is eliminated, for example, with the smear of the double bottom. As a result of the action of the capillary pump, the source material is quickly dehydrated i; dried to the desired final; moisture and consistency.

This arrangement is kapically, g porous wicks / popped ah in Hades & systems of branched rods, .provides intensive and ravio "ern. by volume the process of drying the material. After obtaining the desired product, out of chamber 1, through the hatch 9, the plug-in rigid frame 11 is taken out together with the terminals, terminals and wicks, and the final product is discharged. After washing the leads and rods on the frame in warm water, they can be used for further operation.

The thermosensitive material is in contact with the top plate of the flue box 8. The insulation is heated.

spits from the product being dried are achieved by making the slab three-layered. FIG. Figure 4 shows a section Bb, taken along the gas outlet box and the wick mount in the bottom

The stove, where the stove 13 / adjacent to the product being dried, is presented, the heat insulating layer 14, for example sheet asbestos, glass wool, the upper partition l5 of the exhaust duct 8.

Thermal insulation SLA 14 prevents the transfer of heat to the plate 13 and, consequently, to the product being dried, which eliminates the spoilage of the product from thermal effects. Besides,

5, the upper partition 15 of the box 8 can be made of a heat-resistant material with good adhesion properties to prevent the drying material, such as Teflon, from sticking to it. The wick 3 in the bottom plate 13 is fixed by easy pressing, which is achieved / for example, by making the wicks in places of pressing in a cone-shaped shape (Fig. 4).

 Fig. 5 (section G-d) shows the wick fastening assembly to the frame 11, on which the groove 16 is moved, 17 is moved there 17. The wick 3 is clamped on both sides by angle plates 19 using a bolt 18 passed through the plates and the wick . Fixing the unit in a predetermined position is secured with a bolt 17. The fastening of the wick taps is similar. Fastening of taps is advisable if they have significant dimensions, for example, with a cBfcffiue length of 200 mm. If the length of the taps is less than 200 p / m, then the fastening is o, then the t8odes are inexpedient, and the entire system of wicks needs to be fixed in

input and output nodes as shown in FIG. 4 and 5.

The frame has a shape corresponding to the shape of a working cameo, for example, a mesh parallelepiped shape, i.e.

frame. Fig. 11 in the plan is made of the form of an ir coal & parallelepiped. W ..; tissues; LH. And lead wicks 4 and 3 size does not exceed the size of the chamber. ; Lead-wicks 3 have contact with su & A large agent in the chamber (Fig. 6) for the free output of the drying agent. From the chamber 6 with the fluidized bed, large holes 20 were made in the discharge wicks x 3 through the duct 8 at the height 5 of the duct. The drying chamber 1 is located above the chamber with inert coolant 5 in order to improve and accelerate the movement of moisture from chamber 1 to chamber 5 and to intensify the process.

generally. The plug-in rigid frame II is made of a light anti-corrosion material, for example, duralumin / teflon, etc., which prolongs the service life and prevents the final gg product from clogging it with rust and other by-product chemicals.

Claims (1)

1. USSR author's certificate No. 514174, class, F 26 B 17/10, 19.04.74. v- fui.t Bud L tl FIG. g I1 Yr P fut.S Art. 6