SU1526757A1 - Band vacuum-filter - Google Patents

Abstract

The invention relates to a technique for filtering polydisperse suspensions and improves the efficiency of operation due to more complete removal of the solid component from the suspension and at the same time reducing the consumption of flocculants. The filter contains an infinite filter belt 1, a leading 2 and a tension 3 drums, a vacuum chamber 4, a coarse loading tray 5 and a fine-grained suspension tray 6, flocculating inlets 7, a vibrator 8 connected to the suspensions loading trays 5, 6. Tray 6, having a bottom 9, is provided with a perforated partition 10 mounted above the bottom 9 to form a cavity 11, in which the flocculating inlets 7 are installed and connected to the vibrator 8. Louvre plates 12 are inclined installed in the same cavity 11. flocculants are made in the form of gutters adjoining the upper edges of 13 louvered plates 12. 1 Cp f-ly, 3 ill.

Description

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The invention relates to a technique for filtering polg: dispersible suspensions and may be F); Used in the coal, chemical and other industries.

lie / ib of the invention — increased efficiency due to more complete extraction of the solid component from the suspension and, at the same time, a reduction in the flow rate of floc-1 STE in

H; i phi | - i shows a filter, the general form of i pa. Fsz (-, n;. (1p | g. 2 by; 1ost; in fig. 3 -; i ;;, ii; c: i А -. L n; Fig. 2.

The vacuum belt filter contains endless filter belt 1, leading 2 and iat / knoi 3 drums, vacuum chamber 4. loading trays of coarse-grained 5 and fine-grained 6 suspensions, nozzles 7 for flocculant inlet, vibrator 8, riji. uiii-.M Hbiii f with the letters 5 and 6 for 1) narrowly sus- (R li.inii, Logo N. you have the bottom 9, equipped with iifjiijiofnipoBa other nsreg-orozhka 10, set-up / nchp oh over the bottom 9 with the formation of npl mstn 11 , li ko: ak) are installed (kg brute 7 NLVD-. flocculon, and connected to vibra-: org) m M. In Toi i the cavity 11 is inclined h-1 anoB.iL / terminal plates 12, v- , K) -peuK TKv. Nozzles 7 vvg) and floc-. PP1GOI ipo.chneny in the form of gutters, close to the upper edges of 13 louvers - ii.iacTiiH 12.

Feed (; lokul nta in the nozzles of the donor-7) through the holes 14.

Claims (2)

I and- (i} |); irovannuyu partition 10 M (.) Zhet ji.irb LibMKKiHOHa, for example, from metal i-fiKii with waste. the size of which is equal to the units of McHi.iiK. My particle size is large-ic (). 4HL lirii susien. and 1a b () to the size of the part of | -oo11k; medium, sp.) i. For about. 1n1 a1lamov j a: u; e; i .; openings n) -; 0.3 0.7 mm. B. iKx filter m works next (m (at once. Cr H03ej) H.4c ha of suspension iiocTyiiaei in 5, through which it flows onto a moving phi. 1 pp (tal, tape 1, G de nodes by the action of a vacuum in a 4 oT vacuum chamber, iaiacic i c. C) up grain refined (.) Air flow rd1) 1 h particles. Liquid, flow rate under the action of this vacuum) into the vacuum chamber 4. chd. : It is beyond the limits of the vacuum of the -fcc. The thinnest gurse of the suspension of the Noc HocryiiacT and the cavity of the tray 6 is black., The hierfo (Mipotia ipuk) |; 1.h) e 10 porcelain divided by 1) 1 lsln,. surui, ks) under action The vibrations of the perforated septum 10 are broken into droplets, which increases the area of the open surface of the suspension. The flocculant supplied from nozzles 7 is combined with these drops. Thereby, flocculation is dispersed in the volume of the fine-grained suspension. When these drops are then combined, flocculation and suspension are mixed into a single stream at the junction of a coarse-grained sediment. 0 and as a result, the flocculation of fine particles is observed. The flocculation of these particles forms a sediment layer that is easily permeable to liquid, which contributes to the high performance of the vacuum filter. After mixing in this cavity with the flock, by means of ntami supplied through the openings 14 to the nozzles 7, a finely dispersed suspension of .aish 9 of the tray 6 flows onto a layer of coarse-grained sediment. 0 s. yu fine grain suspension. Under the action of a vacuum in the vacuum chamber 4, fine particles are filtered out at the coke of large particles, and the liquid enters the chamber 4 and is then removed from filter vacuum. The bilayer sediment mixes with the filter belt 1 and when it bends around the next leading drum 1;: and 2 separates as the final t) and then the cycle repeats. five thirty F.-rmula inventions  . 1): a vacuum filter containing an infinite filter belt, a leading and tension drum, a vacuum filter, a coarse-grain load 5 and fine-grained suspensions; fl (; cool) g: -s inlet branch pipes, characterized in that, in order to increase the efficiency of operation beyond L ;;. a more complete removal of the solid component from the suspension and a reduction at distillation. flocculant flow rate, loading tray 0 t of n-grain suspension and is equipped with a perforated partition and a vibrator. 2. Vacuum filter according to claim 1, characterized in that the tray of the lagruzka of the fine-grained suspension is provided with louvres, inclined set between the days of the LUCM lot and the perforated partition. At the same time, flocculent insertions were made: 1; ide () in, adjacent to the edges of the louvre plates. Flocutnt solution Suspension drops figure 1 F / ug.5