CN2041972U

CN2041972U - Leafboard type filter

Info

Publication number: CN2041972U
Application number: CN 88221614
Authority: CN
Inventors: 聂亮
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-12-28
Filing date: 1988-12-28
Publication date: 1989-08-02

Abstract

Disclosed is a leaf-board type filter which belongs to a novel suspension filter equipment and relates to an improvement of a vane filter. The leaf board of the filter is capable of being conveniently disassembled, arranged, dismounted and cleaned and adapting the transformation of different materials and varieties. The leaf board and a separating rack are sealed by a compacting ring, so the sealing of filter cloth is ensured only with lesser compacting force. The surface of the leaf board is smooth, so the damage of filter cloth in working process is small, and the filter paper is capable of being used for fine filtering. The utility model has the advantages of simple structure, easy fabrication, few materials consumption and great filtering speed. The leaf-board type filter is additionally provided with a tilting mechanism, so the labor intensity of dismounting, arranging and cleaning is alleviated.

Description

Leafboard type filter

The utility model relates to the novel impeller formula filter of a kind of filter, particularly a kind of filtering suspension liquid.

Known horizontal blade filter by filter cylinder, organize blade, convex pressure ring, compression axis etc. more and form.Its blade is to be formed by two garden shape expanded metal butt welding, has wire netting to support in the middle of two metallic plates, and the inner space forms filtrate channel.Filter cloth is made flat garden cover shape according to the shape of blade, and half of seam is dead, and half of frenulum is tightened.Perforate in the middle of the filter cloth, compression axis therefrom passes.On every metafiltration cloth, there is a convex pressure ring to compress filter cloth, has perforate to communicate on the bulge loop with the filtrate discharge pipe.When being full of filter pulp in the cylindrical shell of filter, filtrate is passed in the filtrate channel that filter cloth enters each blade, and converges to the discharge pipe displacer from the bulge loop perforate, and particle then amasss in the filter cloth outside and forms filter residue.If filter residue needs washing, then to filter the back and fed wash water, the path of wash water is identical with filtrate, opens casing upper cover after the washing, unclamps the compression axis nut, extracts filter leaf removal filter cake.Because be subjected to the restriction of blade construction, the filter cloth cover can only be made above-mentioned tether construction.Therefore, usually cause filter residue to leak because of the filter cloth colligation is unreliable, influence filter quality, it is also cumbersome to change filter cloth in the assembling and dissembling process.Under the situation that has filter residue to leak, quite difficult to the cleaning of blade.In addition, equipment manufacturing cost is higher, and to clean assembling process also very loaded down with trivial details at every turn.

The purpose of this utility model provides a kind of novel impeller formula filter.The impeller of this filter can decompose easily, and mounting or dismounting and cleaning only need less thrust can obtain reliable sealing effect in its course of work, and the loss of filter cloth are also very little.In addition, impeller simple in structure, make easily, material consumption is few.Secondly, filter has been set up switching mechanism, has alleviated the labour intensity in cleaning, the mounting or dismounting operation so widely.

Task of the present utility model is done in such a way that tens of groups of impeller, filter cloth and the shelf in the filter, and------sequence alternate of filter cloth---shelf---filter cloth fits together impeller according to filter cloth.Impeller comprises two parts, and one is following filtering surface, and it forms by a garden shape porous plate with the concentric interior hold-down ring of garden plate and the external compression ring assembly welding on edges of boards edge, garden; Another is to go up filtering surface, is welded by a garden shape porous plate and several support bar, is placed in the concave station of inside and outside hold-down ring end face.The interval of two filtering surfaces forms the filtrate flows space, and several perforates that distribute on the interior hold-down ring are filtrate (liquid.Shelf is welded into by interior hold-down ring, external compression ring and equally distributed 8 holder bars.The inside and outside hold-down ring of the diameter of its inside and outside hold-down ring and impeller is identical, but thickness is 1.5～3.5 times of impeller hold-down ring thickness.The perforate that rule is arranged on the external compression ring is the suspension inlet.The holder bar can firmly couple together inside and outside hold-down ring on the one hand, after shelf and impeller assembling, can play support and firm effect to the filter cloth or the filter paper of top and bottom, and form the space that holds suspension and filter residue on the other hand.Impeller is concentric installation successively with the interior hold-down ring of shelf, and this has just formed filtrate channel naturally, and filtrate channel is connected with discharge header.

The clamping structure of filter is made up of pretension nut, clamp shaft and outer clamping screw, and clamp shaft passes in filtrate channel, and its upper end is that regular screw threads are connected with the pretension nut, and its lower end is that T type internal thread is connected with outer clamping screw.

The switching mechanism of setting up is made up of rotation hand wheel, transmission worm screw, worm sector and rotating shaft.One end and the cylindrical shell of rotating shaft are fixed, and the other end is connected with worm sector.If need cylindrical shell is spent into level from upright upset 90, then rotate just transmission worm screw rotation of handwheel, drive worm sector generation corresponding deflection, up to the parallel ground of clamp shaft.Successively impeller, filter cloth and shelf are inserted clamp shaft then, and screw the pretension nut.After clamping work is finished, rotate handwheel and make cylindrical shell upright.In general, as long as screw the pretension nut, just can make the filter operate as normal.If when finding to leak in the pressure-filtering process, available outer clamping screw clamps again, to guarantee fully, to seal reliably.When filter was worked, suspension was full of in the whole cylindrical shell and the shelf space from inlet, and filtrate enters in the impeller by filter cloth or filter paper, and flowed into filtrate channel from filtrate (liquid, converged to house steward's discharge filter.

Filter in the utility model adopts inside and outside two hold-down rings sealing, and its area is less, thereby very little thrust just can guarantee the sealing of filter cloth and impeller, shelf.Be flat surface because of two filtering surfaces about the impeller again, thus not only little in the course of the work to the filter cloth damage, and can also use filter paper to carry out fine filtering.Impeller decomposes and easy accessibility, can thoroughly clean its inside, so the utility model adapts to the conversion of different material kind.Impeller and shelf available metal material or engineering plastics are made, generally only several kilograms of its weight, and operating personnel can dismantle very easily, clean and assemble.Filter in use is erectility, thereby floor space is little, simultaneously, always has 50 percent filter area to be positioned at the top of suspension in the filtration, therefore is subjected to the influence of filter residue gravity sedimentation less, can the long period keep the high rate of filtration.In addition, when backwash, the washing lotion flow process is opposite with filtering process, can wash out most of filter residue with washing lotion, makes filter under the situation of not tearing impeller open, continuous filtration.

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 impeller formula filter schematic diagram.

Fig. 2 filter apparatus configuration schematic diagram.

Fig. the 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. outer upper lower filtration of porous plate (21) the interior hold-down ring of porous plate (22) filtrate channel (23) (24) filtrate (liquid (25) support bar (26) concave station that filters of screw rod (13) external compression ring (14) suspension entrance (15) external compression ring (16) holder interior the hold-down ring of bar (17) (18) compression axis (19) filter cloth (20) that clamps of rotation hand wheel (11) discharge header (12) of transmission worm screw of worm sector of rotating shaft of pretension nut of shelf of impeller of cylindrical shell of charging aperture of discharging hole of 1---2 label unanimity..

Embodiment: 500～550 millimeters of the diameters of made cylindrical shell, working pressure 4 kg/cm, 4～6 millimeters of cylindrical shell wall thickness, 6～7 square metres of filter filter areas.Impeller up and down filtering surface adopts 1～1.5 millimeter corrosion resistant plate to make, poor≤10 of external diameter millimeter in the pressure ring, in the impeller on hold-down ring and the shelf external compression ring number of aperture decide general 4～24 according to filter area.Manual argon shield weldering is adopted in the impeller welding.1～3 millimeter of shelf holder bar thickness can be made square type, angle steel type etc.Compression axis external diameter≤30 millimeter, the diameter of thread≤M28, other has an outer cross section is that the hollow sleeve of Y type is installed on the clamp shaft, to guarantee the abundant centering of impeller and shelf inner pressure ring.Overturn structure adopts common worm gear, worm screw both can.For the corrosivity material, cylindrical shell, impeller, shelf and compression axis etc. can be selected stainless steel or titanium material for use, and impeller and shelf also can use polypropylene, polyvinyl chloride and other engineering plastics to make.For there not being the corrosion material, above-mentioned parts can use carbon steel.

Claims

1, a kind of impeller formula filter of being made up of cylindrical shell, filter, clamping structure etc. is characterized in that:

A, filter are made up of tens of groups of impeller, filter cloth, shelf, according to the sequence alternate assembling of filter cloth-impeller-filter cloth-shelf-filter cloth,

B, outside cylindrical shell, set up switching mechanism.

2, impeller formula filter according to claim 1, its filter are characterised in that last filtering surface that the garden shape porous plate (20) of the several support bars of a block welding (25) in following filtering surface that 4. impeller is formed by a garden shape porous plate (21) and interior hold-down ring (23), external compression ring (13) assembly welding and the concave station (26) that is placed on inside and outside hold-down ring end face forms is formed.

3,4. impeller formula filter according to claim 2, its impeller are characterised in that filtrate (liquid (24) on the interior hold-down ring (23).

4, impeller formula filter according to claim 1 is characterized in that 5. shelf is by interior hold-down ring (17) and external compression ring (15) and asks bar (16) to be welded into.

5, impeller formula filter according to claim 1 is characterized in that having on the shelf external compression ring (15) 5. suspension inlet (14).

6, impeller formula filter according to claim 1, it is characterized in that switching mechanism by rotation hand wheel 10., the transmission worm screw 9., 7. 8. worm sector form with rotating shaft.

7, impeller formula filter according to claim 1 is characterized in that impeller and shelf available metal material or engineering plastics make.