CN2708984Y - Filter board of vertical disc type filter - Google Patents

Abstract

The utility model discloses a filter board of vertical disc type filter, relating to a structural improvement of the filter board of the filter disc of vertical disc type filter for the filtering in the production process of aluminum hydroxide, characterized in that the filter area of the sector fan slice of the filter board is identical to the filter surface area of the single filter disc of the vertical disc type filter which are equally divided into 12-60 portions, the two sides of the top of each filter board make an included angle of 6 degrees-30 degrees, the top-bottom symmetrically filtering surface of the single filter board are oblique planes which makes an included angle beta of 0. 5 degrees-10 degrees. every other filter board is corresponding to one filtrate passage of a quill shaft, every filter board is connected with the quill shaft via a capitellate joint by the adoption of an inserting mode. In the utility model, the filter area of the filter disc is unchanged, and the surfaces of the filter board makes certain included angle, which increases the quantity of the filter board, lightens the weight of the filter board, reduces workmen's labor intensity when the filter boards are replaced, and reduces the consumption amount of vacuum and converse blowing. The filter board of vertical disc type filter reduces production cost, reduces the filter cake residual quantity on a filter cloth and improves the hour deliverability of table of equipment.

Description

A kind of vertical-disk filter filter plate

Technical field

A kind of vertical-disk filter filter plate relates to a kind of improvement that production of aluminum hydroxide process kind is divided the filter-plate structure of the vertical-disk filter filter disc that filters usefulness that is used for.

Background technology

In aluminum oxide production process, planting the branch filtration is one important procedure.In evolution in recent years, vertical-disk filter is progressively substituting rotary drum filter and is carrying out the filtration of aluminium hydroxide kind branch, brings into play characteristics such as its filter area is big, production efficiency height.In existing vertical-disk filter application process, one group of 20-30m ²Filter disk (hereinafter to be referred as filter disc) and be made up of 12 filter plates, in use shown a lot of drawbacks gradually: 1) every filter plate weight is up to 25kg, and loading and unloading are difficult when changing filter cloth; 2) the filter cloth area of every filter plate institute suit is big, and when discharging, needed counter-blowing wind-pressure power or air quantity are big, and filter cloth forms arcuation under the effect of blowback wind, and big more its gradient of filter cloth area is more little, and residual quantity was big when filter cake unloaded; 3) single fanning strip inner chamber is bigger, and central shaft joint sleeve place area of passage is little, and flow velocity is slow, and the filtrate capacity of returns is big during blowback wind.

Summary of the invention

The purpose of this utility model is exactly the deficiency that exists at above-mentioned prior art, provide a kind of can make vertical-disk filter effectively reduce working strength of workers when changing filter plate, reduce vacuum and blowback wind consumption, reduce production costs, reduce filter cake residual quantity on the filter cloth, a kind of vertical-disk filter filter plate of production capacity when improving table of equipment.

The purpose of this utility model is achieved through the following technical solutions.

A kind of vertical-disk filter filter plate, comprise conventional axle sleeve, filter plate fixed pin shaft, steel plate bound edge, alignment pin, the steel plate bound edge is rolled into one to whole fan sheet, and axle sleeve, bearing pin weld with the steel plate bound edge respectively, and alignment pin and axle sleeve are also by integrally welded; The branch 12-60 part areas such as filter area and the single filter disc filtering surface of upright filter disc machine of Sector filter plate fan sheet that it is characterized in that filter plate are identical, and every filter plate top both sides angle α is 6 °-30 °; The filtering surface of the upper and lower symmetry of monolithic filter plate is that inclined-plane angle β is 0.5 °-10 °, filtrate channel of the corresponding quill shaft of per two filter plates, and each filter plate adopts inserted mode to be connected by microcephaly's joint with quill shaft.

The utility model changes filter-plate structure under the constant situation of filter disc filter area, the filter plate plane is formed an angle, and increases filter plate quantity, alleviates filter plate weight, and the purpose that can reach has: 1) reduce working strength of workers when changing filter plate; 2) consumption of minimizing vacuum and blowback wind reduces production costs; 3) reduce filter cake residual quantity on the filter cloth, production capacity when improving table of equipment.

Description of drawings

Fig. 1 is a vertical-disk filter filter-plate structure schematic front view of the present utility model.

Fig. 2 is a vertical-disk filter filter-plate structure diagrammatic top view of the present utility model.

The specific embodiment

A kind of vertical-disk filter filter plate, comprise conventional axle sleeve 1, filter plate fixed pin shaft 5, steel plate bound edge 4, alignment pin 3, the steel plate bound edge is rolled into one to whole fan sheet, and axle sleeve, bearing pin weld with the steel plate bound edge respectively, and alignment pin and axle sleeve are also by integrally welded; Branch 12-60 part areas such as the filter area of the Sector filter plate of its filter plate fan sheet 2 and the single filter disc filtering surface of upright filter disc machine are identical, and promptly filter disc is made up of 12-60 piece filter plate, and every filter plate top both sides angle α is 6 °-30 °; The filtering surface of the upper and lower symmetry of monolithic filter plate is that inclined-plane angle β is 0.5 °-10 °, filtrate channel of the corresponding quill shaft of per two filter plates, and each filter plate adopts inserted mode to be connected by microcephaly's joint with quill shaft.

Embodiment

With filter area is 20m ²Filter disc be divided into 28 filter plates, every filter plate angle is 12.8 °, filtrate channel of the corresponding quill shaft of per two filter plates, make quill shaft be divided into 14 filtrate channels, each filter plate adopts inserted mode to be connected by microcephaly's joint with quill shaft, filter plate microcephaly's joint area designs for streamlined, fills filtrate and flow is determined throat pipe diameter by hydrodynamics by the filter plate inner chamber.Monolithic filter plate weight 14kg, labour intensity reduces greatly when changing filter cloth; Monolithic fanning strip surface area reduces, during discharging, and the corresponding minimizing of blowback air quantity that is consumed, the relative large tracts of land filter cloth of the arcuation gradient that blowback wind forms is big, and relative residual quantity was little when filter cake unloaded, and filter cake stripping rate improves about 5%; The filtrate capacity of returns is less, and filter cake attached liquid amount reduces about 10% on year-on-year basis; Production capacity improves about 10% during table of equipment; The filter cloth life-span is prolonged.

The foregoing description is one of embodiment of the present utility model, and as the qualification to the claim scope, its protection domain is not as the criterion with claim.

Claims (1)

1. A kind of vertical-disk filter filter plate, comprise conventional axle sleeve, filter plate fixed pin shaft, steel plate bound edge, alignment pin, the steel plate bound edge is rolled into one to whole fan sheet, and axle sleeve, bearing pin weld with the steel plate bound edge respectively, and alignment pin and axle sleeve are also by integrally welded; The branch 12-60 part areas such as filter area and the single filter disc filtering surface of upright filter disc machine of Sector filter plate fan sheet that it is characterized in that filter plate are identical, and every filter plate top both sides angle α is 6 °-30 °; The filtering surface of the upper and lower symmetry of monolithic filter plate is that inclined-plane angle β is 0.5 °-10 °, filtrate channel of the corresponding quill shaft of per two filter plates, and each filter plate adopts inserted mode to be connected by microcephaly's joint with quill shaft.

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