SU107135A1 - Drying and grinding drum - Google Patents

Description

Splicing grinding mounts with hanging chains as grinding bodies (or with chains equipped with balls at the ends), alternating zones) and shoveling, with conical sieves, and making the grinding product from the grinding center grinding zone are known.

These crystalline grinding barbers do not exclude overdrying of the material that is being crushed, because h (the material brought to the final fineness of the fineness is removed from the ground, and the unfinished particles are subjected to reshuffling, even if they are only slightly different in size from the final product.

(1) The drum of the invention was equipped with several zoos of grinding, in its BTOpoii and Solovi, several walls of grinding, the walls of which were formed by conical sieves tapering in x (.) of the material, the mountains of which were opened in the village, Teduyaun :, shepherding zone 1P-1I. The size of the holes in the conical sieves decreases from sieve to sieve along the material in the drum. This ycTpoiicTBO allows the removal of particles from the grinding and suction area of the material .ui nose / head, which is clear to those who can measure them in size and before joining with / eduyi1, th zoo and dissociate them and even trap them, leveling off moisture content of individual parts of the material. and not admitting, thus, their drying.

On c} l1g. 1 shows drying-razmo. Pny drum in a longitudinal section; on . 2 is a cross-section of a non-spinning zone; in fig. 3- a cross-section of the drum at the head of the nozzle; in fig. 4-cross section of the chain area; in fig. o-ion exchp 1 cut along the first sifting zone; in fig. 6 is a cross section of the second area of prosiviai.

Sui (. Shredded drum consists of I, 2, 3, 4, 5, and 6 OZE rewashing, zone 7 with nozzle, chain zones RS and 9, first screening zone 10, and sec (3Oinj // sieving). Inside the drum a pipe consisting of two parts 12 and 13 is passed through which hot gases are passed in. A dotted line with dashes with dots indicates the direction of movement of hot gases. A dotted line of thin dashes shows the direction of movement of gases saturated with water vapor in zones 10 and 11. conic sieves 14 and 15, narrowing H1 .ies along the material in the drum. Spaces 16 and 17 between the sieves Amy 14 and 15 and the wall 18 of the drum from the side of the large diameter of the cones are separated from the previous zones 3 and 4 by ring partitions 19 and 20.

See the smaller diameter side of the KOirycoB, these spaces are open in the form of a number of slots 21 and 22 in the village, where the zones 5 and 6 are located. The shovel zones 2, 3, 4, 5 and 6 have blades 23 (figure 2) attached to wall 18 of the drum. Zone 7 with nozzle 24 is formed by box-shaped and curved blades (Fig. 3) attached to the walls 18 of the drum, to the center tube 12 and to the radial partitions 25. Chain zones 8 and 9 are formed by chains 26 (or chains with suspended , at their ends with m. balls), attached to the wall 18 of the drum.

The first sifting zone 10 is formed by a conic sieve 14, to the inside (the surface of which is sealed to the circuit 26, and is provided with PROT0.1111Yi radio partitions 27. Inside the zone 10 a pipe 13 passes, delivering hot gases to the second sifting zone 11. Zone / / also equipped with a sieve 15, chains 26 n partitions 27 {Fig. 5).

The material enters zone I, where it is mixed and brought into contact with hot gases. Part of the flow of hot gases through pipes 12 and 13 is fed directly to zones 10 and. 11 to intensify in them the processes of drying, grinding and screening. In Zope 7, the material is heated by contacting directly with the hot gases and with the nozzle 24 heated by the gases. The temperature of the heated material is equalized by perepochivanie in zope 2, after which the material is crushed by chains 26 3 zone 8, to the temperature and moisture content of the grinding product is again aligned in the zone of converting 3. From zone 3 the material enters the conical sieve 14 zone 10, | -ds exposed to hot gas entering a / 2 pipe through annular slot 28, while simultaneously grinding the raw residue on sieve 14 until all material without residue passes through the hole in sieve 14 into sub-cell 16. From there it is black of the annular gap 21 is fed to the next shoveling ZON} 5 where the temperature and humidity are aligned. The recovered material is again crushed by chains in ZOP .9 and again ne; is reoped in zone 4, after which it enters the zone //. In the zone //, the material on the conic sieves 15 is exposed to fresh hot gas, post-Jun 1, through pipe 13, while simultaneously grinding the raw residue on sieve 15 until all the material passes through the screen hole in the sieve without residue 17, from which it goes through ring p.; Spruce 22 enters for shoveling into zone 6, which it passes out of the drum with equalized temperature and humidity.

Szanilno-grinding drum according to the invention has an improved performance and lower specific fuel consumption, compared with the known drying and grinding drums of the same size. With clay supine, the obtained product can be used as a press powder without preliminary grinding in disintegrators, without heating and moistening with steam.

Subject invention

Drying and grinding drum with hanging chains as grinding ones, with alternating grinding and re-casting zones, with conical sieves that take the grinding product out of the grinding and drying zone, so that In the second half, several grinding zones were arranged in its second half, the walls of which were formed by tapering sieves tapering along the material, whose mouths were open 5 00; 1, the narrowing area of the shovel p.

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