SU944609A1

SU944609A1 - Disk vacuum filter

Info

Publication number: SU944609A1
Application number: SU762306895A
Authority: SU
Inventors: Георгий Семенович Пигоров; Александр Матвеевич Коткин; Исай Николаевич Кейтельгиссер; Александр Андреевич Клешнин; Анатолий Дмитриевич Нищеряков; Эмилия Исааковна Мучник; Петр Петрович Ягодин; Евгений Михайлович Перепелица; Александр Яковлевич Байдюк; Борис Степанович Маширов; Александр Петрович Пичко; Борис Петрович Федотов; Георгий Александрович Володин; Станислав Федорович Комарухин
Original assignee: Украинский Научно-Исследовательский Институт Углеобогащения; Трест "Донецуглеобогащение"; Завод "Прогресс"
Priority date: 1976-01-04
Filing date: 1976-01-04
Publication date: 1982-07-23

Description

Изобретение относитс к области фильтрации, а именно к дисковым вакуум-фильтрам и может быть использовано в горной, химической и металлургической отрасл х промышленности .The invention relates to the field of filtration, namely to vacuum disk filters and can be used in the mining, chemical and metallurgical industries.

Известен дисковый вакуум-фильтр, включающий горизонтальный вал с укрепленными на нем вертикгьльными фильтровсшьными дисками, ванну дл суспензии, распределительные головки, привод и раму.A disk vacuum filter is known, which includes a horizontal shaft with verticular filter disks fixed on it, a bath for suspension, distribution heads, a drive and a frame.

При работе фильтра суспензи фильтруетс на вращагацихс дисках, а фильтрат собиргютс в каналах вала и,отводитс с помощью распределительной головки 1.When the filter is in operation, the suspension is filtered on spinning discs, and the filtrate is collected in the shaft channels and discharged with the help of the distributor head 1.

Недостатком этого фильтра вл етс низка производите.пьность, обусловленна малой скс остью отвода фильтра.The disadvantage of this filter is low productivity due to the low drainage of the filter.

Наиболее близким по технической сущности и достигаемому результату к изобретению вл етс вакуум-фильтр содержащий фильтровальные диски, распределительные головки, ванну и несущий вал с наклонньми каналами, верхн стенка котсфых параллельна внешней поверхности вала.The closest in technical essence and the achieved result to the invention is a vacuum filter containing filter discs, distribution heads, a bath and a carrier shaft with inclined channels, the top wall is parallel to the outer surface of the shaft.

Известный фильтр работает следующим образом.Known filter works as follows.

Содержаща с в секционной ванне суспензи фильтруетс на вращающихс фильтровальных дисках, а фильтрат собираетс в каналах вала и за счет их наклона в сторону распределительной головки ейлстро отводитс в сборник фильтра 2 .The slurry contained in the sectional bath is filtered on rotating filter discs, and the filtrate is collected in the shaft channels and, due to their inclination towards the distributor head, is fed quickly into the filter collection 2.

10ten

Недостатком известного фильтра вл етс низка производительность, вызванна малым углом наклона каналов , увеличение которого при цилиндрическом выполнении вала ведет к The disadvantage of the known filter is the low productivity caused by the small angle of inclination of the channels

15 резкому увеличению габаритов фильтра и соответственно нетехнологичности его выполнени .15 to a sharp increase in the size of the filter and, accordingly, the lack of its implementation.

Цель изобретени - увеличение производительности фильтра путем ин20 тенсивности отвода фильтрата.The purpose of the invention is to increase the filter capacity by means of removal rate of the filtrate.

Поставленна цель достигаетс тем, что вал выполнен в виде двух усеченных конусов, соединенных большими основани ми.The goal is achieved by the fact that the shaft is made in the form of two truncated cones connected by large bases.

2525

Коническа форма такого вала может быть образована либо внутренней и внешней его поверхност ми, либо только внутренней его поверхностью.The conical shape of such a shaft can be formed either by its internal and external surfaces, or only by its internal surface.

Claims

Figure 1 shows a filter that looks around; in fig. 2 shows a section A-A in FIG. on fig.Z - section bb in fig, 1. The disk vacuum filter (Fig. 1) consists of a shaft 1, made in two de-truncated cones connected by large bases, on which filter bottoms 2 are installed, partially placed in the bath 3. Inside the shaft there are inclined channels 4 removal of filtrate and stripping sediment connected to sectors of disks 2. The cross-sectional area of each channel increases in length from the middle of the shaft to its ends. In this case, the configuration of the section changes: in the middle of the shaft, the channel has a width greater than the height (Fig. 2), and at the ends of the shaft, on the contrary, the height of the channel is larger than the width (Fig. 3). Distribution heads 6 are installed at both ends of the shaft, connecting the channels with a vacuum pump, a source of compressed air and a filtrate collector. The shaft is supported through bearings 7 on the frame 5 and is driven in rotation by the drive 8. The suspension is fed into the filter using a collector 9. The filter works as follows. The filtered suspension enters the collector 9 and is distributed from it through the bath 3. When the shaft rotates filter discs 2 each row of sectors enters a suspension. At this moment, the internal space of these sectors is connected to the vacuum pump by means of the distributor head 6, and the filtrate is drained into channel 4. The filtrate is poured out when the channel is horizontal. With further rotation of the shaft, each channel takes an increasingly inclined position. The relatively short length of the canal and the large diameter of the canal contributes to the intensive drainage of the filtrate and the complete emptying of the canal in a short time. Then, compressed air is passed through the channel with the help of a distributor head to remove sediment from the sectors. A significant change in the height and cross-sectional area of the channel along its length provides for a more even distribution of air from the saturation across the discs during the blowout and a more complete blowout of wastewater. The same inner diameter of the discs with a conical outer surface of the shaft is provided by different heights of the tides on the shaft at the point of attachment of the discs — the largest at the extreme and the smaller at the central discs. The design of the shaft of the disk vacuum filter in the form of two truncated cones connected by large bases allows the speed of rotation to be increased by a factor of 2-3 and the filter capacity increased by a factor of 1.5-2. The invention includes a disk vacuum filter containing filter discs, distribution heads, a bath and a carrier shaft with inclined channels, the top wall of which is parallel to the outer surface of the shaft, characterized in that, in order to improve filter performance by intensive removal of the filtrate, the shaft is designed as two truncated cones connected by large bases. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 185295, cl. B 01 D 33/26, 1964.

2. The patent of the USA 3591009, kl.210-247.