CN207024729U - A kind of association type filter press filter chamber - Google Patents

Abstract

The utility model belongs to filter press equipment technology field, and in particular to a kind of higher association type filter press filter chamber of strainability.A kind of association type filter press filter chamber, if it is made up of dried layer filter plate 21 and the filter cloth being engaged with filter plate 22, described filter plate is in I fonts, filter cloth is inlaid with filter plate, charging aperture is provided among filter plate, filtrate (liquid is provided with below filter plate, filter plate hold-down mechanism 25 is provided with above filter plate, cake layer is enclosed with close to charging aperture side between described filter plate and filter cloth, filtering medium layer 27 is enclosed with away from charging aperture side.The filter chamber of the utility model design devises the structural system of cake layer, filter cloth and filtering medium layer, realize the science filtration system of particulate matter from big to small, traditional filter cloth is fixed by filter cloth frame structure, the filter cloth unit no less than two is linked together by link again, this avoid two layers of filter cloth of traditional structure is overlapping, occurs the problem of filter cloth tied up in knots in pressure-filtering process.

Description

A kind of association type filter press filter chamber

Technical field

The utility model belongs to filter press equipment technology field, and in particular to a kind of higher association type press filtration of strainability Machine filter chamber.

Background technology

Filter press is using filter medium and applies certain pressure so as to realize the equipment of separation of solid and liquid, has very long hair History is opened up, just there is the utilization of the filter press of most original in the Han dynasty Liu An utility model bean curd in more than 100 years Christian era.19 Century, batch (-type) plate and frame filter press just came out, but because filter press now needs manual cleaning, limited its application.With The growth requirement of society and the progress of technology, automatic type press filtration was developed in 1958, and hereafter filter press achieves length The progress of foot, is widely applied in each ore dressing plant.Filter press is divided into intermittent and continuity according to the continuity property of work Filter press, continuous type filter press discharge and feed are all carried out simultaneously, such as belt filter press etc..But due to continuous type press filtration Machine generally possesses more complicated structure, thus Batch Pressure Filtrating Equipment use it is more universal than its.Batch Pressure Filtrating Equipment discharge and give Material is all periodically to carry out, and is generally divided into slurry into cake, washing filter cake, press dewatering, discharging and filter cloth and cleans five steps.

It is several frequently seen filter press below：

Plate and frame filter press is using earliest and widest filter plant.Plate and frame filter press structure is relatively simple, if be by Dry filter frame and filter plate, which force together, forms filter chamber.At present, plate and frame filter press be widely used in mine, pharmacy, chemical industry, metallurgy, The industries such as dyestuff, environmental protection and ceramics.

Chamber-type press filter is to start to be developed in the 1960s, the filter chamber of the filter press is made up of two pieces of filter plate depressions. Its feature filter pressure is high, and maximum pressure can reach 2Mpa；Unit filter area is big, external existing 1727m²Chamber-type press filter Come out, domestic maximum filtering area reaches 1050m²。

Quick-opening press filter is a kind of filter press to grow up on the basis of common filter press, the master with common filter press Distinguish and be that arm-tie draws polylith form for one, common is a drawing one, compresses backhaul and loses time very much.Kang Mingkesi APN Plate and frame filter press is exactly a kind of typical quick-opening press filter.APN plate and frame type filter-presses are by blower system, membrane pump, sheet frame, filter The parts such as cloth, sheet frame opening and closing device, control system and hydraulic system form.Quick-opening press filter do not design force cake discharge device and Cloth-washing apparatus, once so filter cake moisture is too high, filter cake can not just drop by deadweight and need worker to disclose by filter cake.And If filter cake removes thoroughly, just it is not easy to the folder ore deposit at sheet frame sealing surface and causes filter plate whitewashing and gas leakage, while cause filter cloth fast Fast damaged, filter cloth replacing is frequent, also produces very big noise during gas leakage.

Larox type automatic pressure filters have two kinds of Larox-CF (horizontal) and Larox-PF (vertical), be Finland's La Roque this A kind of new type pressure filter of development and production.Larox-PF type automatic pressure filters are a kind of squeeze types, vertical, the full walking of filter cloth is complete Automatic pressure filter.The course of work of filter press includes press filtration, squeezing, drying and cake discharge Four processes.(1) press filtration：Filter plate closes up Afterwards, suspension gets to filter press by Pulp pump, and into each filter chamber of filter press, solid phase is retained to form filter cake by filter cloth, liquid Communicate outside filter cake and filter cloth discharge filter press.(2) squeeze：After forming filter cake, pressure station water supply start, pressure (hydraulic) water passes through soft Pipe respectively enters each filtrating-pressing plate frame pressure water cavity, and filter cake is implemented to extrude by diaphragm of rubber, filter cake is further reduced moisture. (3) dry up：Compressed air enters filter chamber from feed pipe and passes through filter cake, the pore water between filter cake is displaced, filter cake enters one Outside step dehydration, filtrate and air discharge filter press.(4) cake discharge：After being air-dried end, filter plate assembly is opened successively, starts filter Cloth travel mechanism, the filter cake on filter cloth are drawn off from the both sides of filter press.

By above-mentioned analysis, the filter mechanism of filter press is filter cloth and filter chamber residing for filter cloth in filter course In serve vital effect, and how to design a kind of filter chamber more stable, that filter effect is higher is even more this area Continuous research and probe and the key issue of development.

Utility model content

The purpose of this utility model is to provide that a kind of structure is more firm, the more preferable association type filter press mistake of filter effect Filter chamber.

What the purpose of this utility model was realized in：

A kind of association type filter press filter chamber, it is described if being made up of dried layer filter plate 21 and the filter cloth being engaged with filter plate 22 Filter plate be in I fonts, be inlaid with filter cloth in filter plate, be provided with charging aperture 23 among filter plate, filtrate (liquid is provided with below filter plate 24, filter plate top is provided with filter plate hold-down mechanism 25, and described filter plate hold-down mechanism is to be arranged on the through hole above every filter plate And screwed stock through the through hole and the internal thread that is engaged with the screw thread with stock screw part, the rotation Tight part is nut or nut, and cake layer 26 is enclosed with close to charging aperture side between described filter plate and filter cloth, away from charging aperture Side is enclosed with filtering medium layer 27, and described filter cloth is made up of several filter cloth units, and each filter cloth unit includes filter cloth frame If frame and dried layer filter layer 4, described filter cloth framework include outer frame body 1 and internal frame body 2, described outer frame body front is rectangle frame Frame, the section of side is that both ends are semicircular string configuration, and the side of outer frame body is provided with and outer frame body global shape phase The link of cooperation, the outer frame body of described filter cloth unit are set in the link of adjacent filter cloth unit, described inside casing If body is divided into dried layer, internal frame body is net parallel with outer frame body front, covering and be uniformly embedded in inside outer frame body in level Lattice frames structure；N layer filter layers are embedded between adjacent internal frame body, N >=1, are uniformly set on the grid of described internal frame body Hangnail 7 is equipped with, the charging aperture of voltage supply filter installation is provided with filter cloth framework and filter layer.

Described cake layer is heavy on filter cake supporter by particle by the liquid comprising various sizes of solid particle Product is made, and described filtering medium layer is to bond the porous plastic layer formed by plastics fine powder.

Described link 9 is semicircular crotch structure, and described filter cloth unit is no less than 2, not more than 6.

Described filter layer is divided into two layers, including semi-transparent film layer 5 and filter layer of cloth 6, filter layer of cloth are arranged on the upper of semi-transparent film layer Side, filter layer of cloth are interwoven by warp and weft, and warp and weft form by parallel be staggered of multifilament twisted threads, charging aperture Place is provided with filter cloth neck 8, is made of quality of rubber materials, and filter layer of cloth is pressed together in filter cloth neck.Parallel is vertically disposed with two rows, up and down It is staggered, the parallel of upper row is arranged on the top between two adjacent parallels of lower row.

Hangnail is fixed between two layers of internal frame body on the grid that described filter layer passes through filter cloth framework internal frame body.

Described outer frame body is made up of 16 manganese materials, and described internal frame body is made up of hard alloy silk.

The filter cloth neck fastens end cap by passage pipe fitting, outer end and inner side space washer forms, logical in the filter cloth neck Road pipe fitting is annular, and the outer surface of passage pipe fitting is formed with screw thread；Outer end fastens end cap and the endoporus of inner side space washer is also made There is the screw thread that the outer surface thread with passage pipe fitting is engaged；Filter cloth is clamped and fixed in outer end fastening end cap and inner side positioning Between packing ring；The filter cloth neck is by engineering plastics injection molding.

Described hangnail is arranged on the tie point of grid-like framework structure, the bearing of trend of the hangnail of same layer internal frame body Identical, the bearing of trend of hangnail is each perpendicular to plane where internal frame body.

The beneficial effects of the utility model are：The filter chamber of the utility model design devises cake layer, filter cloth and filtering and is situated between The structural system of matter layer, the science filtration system of particulate matter from big to small is realized, by filter cloth frame structure by traditional filter Cloth is fixed, then the filter cloth unit no less than two is linked together by link, and this avoid traditional structure two Layer filter cloth is overlapping, occurs the problem of filter cloth tied up in knots in pressure-filtering process, so as to provide a kind of more stable structure, keeps away Exempted from filter press causes the situation of filter cloth breakage and displacement to occur in the course of the work, while has passed through filter layer of cloth and pellicle The design of layer further increases the filter effect of filter cloth.

Brief description of the drawings

Fig. 1 is the utility model filter cloth structural representation；

Fig. 2 is the utility model filter cloth lateral structure figure；

Fig. 3 is the utility model filter cloth forward junction composition；

Fig. 4 is the utility model filter cloth individual layer internal frame body and filter layer matching chart；

Fig. 5 is the utility model filter-cloth filtering Rotating fields figure；

Fig. 6 is the utility model structure diagram.

Embodiment

It is described further with reference to Fig. 1 to 6 pairs of the utility model.

A kind of association type filter press filter chamber, it is described if being made up of dried layer filter plate 21 and the filter cloth being engaged with filter plate 22 Filter plate be in I fonts, be inlaid with filter cloth in filter plate, be provided with charging aperture 23 among filter plate, filtrate (liquid is provided with below filter plate 24, filter plate top is provided with filter plate hold-down mechanism 25, and described filter plate hold-down mechanism is to be arranged on the through hole above every filter plate And screwed stock through the through hole and the internal thread that is engaged with the screw thread with stock screw part, the rotation Tight part is nut or nut, and cake layer 26 is enclosed with close to charging aperture side between described filter plate and filter cloth, away from charging aperture Side is enclosed with filtering medium layer 27, and described filter cloth is made up of several filter cloth units, and each filter cloth unit includes filter cloth frame If frame and dried layer filter layer 4, described filter cloth framework include outer frame body 1 and internal frame body 2, described outer frame body front is rectangle frame Frame, the section of side is that both ends are semicircular string configuration, and the side of outer frame body is provided with and outer frame body global shape phase The link of cooperation, the outer frame body of described filter cloth unit are set in the link of adjacent filter cloth unit, described inside casing If body is divided into dried layer, internal frame body is net parallel with outer frame body front, covering and be uniformly embedded in inside outer frame body in level Lattice frames structure；N layer filter layers are embedded between adjacent internal frame body, N >=1, are uniformly set on the grid of described internal frame body Hangnail 7 is equipped with, the charging aperture of voltage supply filter installation is provided with filter cloth framework and filter layer.Described cake layer is by including difference The liquid of the solid particle of size is made up of deposition of the particle on filter cake supporter, and described filtering medium layer is by plastics Fine powder bonds the porous plastic layer formed.The filter chamber of the utility model design devises cake layer, filter cloth and filtering medium layer Structural system, the science filtration system of particulate matter from big to small is realized, by the way that traditional filter cloth is fixed on into filter cloth framework It is interior, reach the purpose of fixed frame, by the overlapping of multiple layers of filters, further increase the filter effect of filter cloth structure, The filter cloth being commonly superimposed together in the past can be consolidated by the outer frame body that link is interconnected with one another especially by a kind of Fixed overlapping ensure that adjacent filter cloth during work is not in the situation generation of tied up in knots or mutual displacement. The position of filter layer is further secured by hangnail, improves the overall stability of structure.

Described filter layer is divided into two layers, including semi-transparent film layer 5 and filter layer of cloth 6, filter layer of cloth are arranged on the upper of semi-transparent film layer Side, filter layer of cloth are interwoven by warp and weft, and warp and weft form by parallel be staggered of multifilament twisted threads, charging aperture Place is provided with filter cloth neck, is made of quality of rubber materials, and filter layer of cloth is pressed together in filter cloth neck.Parallel is vertically disposed with two rows, up and down It is staggered, the parallel of upper row is arranged on the top between two adjacent parallels of lower row.Pass through the design of semi-transparent film layer The filter capacity of filter layer can be further improved, by the specific setting of semi-transparent film layer, will can wish to filter in filter process Except ion keep off in filter layer in addition to.

Hangnail is fixed between two layers of internal frame body on the grid that described filter layer passes through filter cloth framework internal frame body.

Described outer frame body is made up of 16 manganese materials, and described internal frame body is made up of hard alloy silk.Outer frame body uses 16 Manganese makes the elastic deformation recovery capability for improving framework, and the recovery for completing deformation is can speed up after filter cloth is squeezed, is entered One step improves the efficiency of filter cloth., can when filter cloth is squeezed and the use of hard alloy improves the intensity of internal frame body The positive internal frame body deformation of nation is limited, ensure that the quality of the product.Hard alloy is the hard compounds and bonding by refractory metal Metal passes through a kind of alloy material made of powder metallurgical technique.Hard alloy have high hardness, wear-resisting, intensity and toughness compared with A series of premium properties such as good, heat-resisting, corrosion-resistant, particularly its high rigidity and wearability, at a temperature of 500 DEG C It is held essentially constant, still has very high hardness at 1000 DEG C.

The filter cloth neck fastens end cap by passage pipe fitting, outer end and inner side space washer forms, logical in the filter cloth neck Road pipe fitting is annular, and the outer surface of passage pipe fitting is formed with screw thread；Outer end fastens end cap and the endoporus of inner side space washer is also made There is the screw thread that the outer surface thread with passage pipe fitting is engaged；Filter cloth is clamped and fixed in outer end fastening end cap and inner side positioning Between packing ring；The filter cloth neck is by engineering plastics injection molding.

Described hangnail is arranged on the tie point of grid-like framework structure, the bearing of trend of the hangnail of same layer internal frame body Identical, the bearing of trend of hangnail is each perpendicular to plane where internal frame body.

When filter press works, hydraulic cylinder provides thrust, compresses filter plate by pressure strip, is formed between adjacent filter plate close Filter chamber is closed, slurry is injected by holder,head feeding mouth.Under filter pressure effect, filtrate is by filter cloth through filter plate upper liquid outlet Outside discharge machine, solid particle by filter cloth stop and gather in filter chamber, with the progress of filtering formed in filter chamber filter cake and by Cumulative thick pin.When the rate of filtration reduces to a certain extent, now filter cake can regard incompressible body as, stop feed.Such as to filter Cake water content requirement is higher, can be washcoated to filter cake progress, can also be passed through compressed air and drying is blowed to filter cake.Then hydraulic pressure Pressure strip is retracted into initial position by cylinder, and board separating device pulls open filter plate one by one, and filter cake drops under Gravitative Loads.So far, complete One work period.The whole filter process of filter press can be divided into slurry filtering and filter cake compacting two stages of dehydration.Enter to starch Filter：To obtain constant entrance velocity, slurry is by quantitatively tired injection filter chamber, and under feeding pressure effect, filtrate passes through filter cloth edge Through going out outside liquid day discharge machine, solid phase is stopped and gathered in filter chamber by filter cloth water groove on filter plate, with constantly entering for filtering OK, filter cake forms simultaneously progressive additive in filter chamber, until filter cake is full of whole filter chamber, enters to starch filtering and terminates.Filter cake compacting dehydration： Continue to inject slurry after entering slurry filtering, due to filter chamber constant volume, with the lasting injection of slurry, the compactness of filter cake increases, The former water being stored in filter cake space is set constantly to be squeezed out.

During work, filter pressure is derived from the pan feeding that constant displacement pump provides.So feed pressure have to the rate of filtration it is very big Influence.Found when filter press works, the porosity of the bigger filter cake of hydrostatic pressure is smaller, and filter cake moisture content is also just smaller, but works as When hydrostatic pressure is increased to a certain extent, moisture content no longer significantly decreases.Now by observing the topology discovery of filter cake, filter Cake Particulate accumulation is in arch bridge form together, and the moisture in this structure hole is difficult discharge by simple fashion of extrusion, and And the abrasion of equipment can be also caused, now filter cake can regard incompressible body as.The content of solid particle determines slurry in slurry Viscosity, and then influence filtering speed, because slurry is already present object, therefore this factor is usually unmodifiable. Influence of the granularmetric composition to the rate of filtration is mainly determined by the minimum granule content of particle diameter.Fine particle content is higher, Grain specific surface area is also bigger, and the rate of filtration is lower.Therefore suitable feed pressure, conjunction should be selected when the present apparatus works The feed thickness of reason, and rationally hole purpose filter cloth, therefore the use tool of the filter cloth of the present apparatus deposits certain flexibility.

Although illustrative examples of the present utility model have been described herein with reference to the accompanying drawings herein, it should be understood that the utility model These accurate embodiments are not limited to, and those skilled in the art can be changed and amended at this to it, without de- From the scope of the utility model and spirit.

Claims (8)

1. a kind of association type filter press filter chamber, if being made up of dried layer filter plate (21) and the filter cloth (22) being engaged with filter plate, its It is characterised by：Described filter plate is in I fonts, and filter cloth is inlaid with filter plate, and charging aperture (23), filter plate lower section are provided among filter plate Filtrate (liquid (24) is provided with, filter plate hold-down mechanism (25) is provided with above filter plate, described filter plate hold-down mechanism is to be arranged on Through hole above every filter plate and the screwed stock through the through hole and it is engaged with the screw thread with stock Internal thread screws part, and it is nut or nut that this, which screws part, is enclosed between described filter plate and filter cloth close to charging aperture side Cake layer (26), filtering medium layer (27) being enclosed with away from charging aperture side, described filter cloth is made up of several filter cloth units, If each filter cloth unit includes filter cloth framework and dried layer filter layer (4), described filter cloth framework includes outer frame body (1) and internal frame body (2), described outer frame body front is rectangular frame, and the section of side is that both ends are semicircular string configuration, outer frame body Side is provided with the link being engaged with outer frame body global shape, and the outer frame body of described filter cloth unit is set in adjacent filter In the link of cloth unit, if described internal frame body is divided into dried layer, internal frame body is parallel with outer frame body front, is covered in level And uniformly it is embedded in the grid-like framework structure inside outer frame body；N layer filter layers are embedded between adjacent internal frame body, N >=1, Hangnail (7) is evenly arranged with the grid of described internal frame body, the installation of voltage supply filter is provided with filter cloth framework and filter layer Charging aperture.

A kind of 2. association type filter press filter chamber according to claim 1, it is characterised in that：Described cake layer by comprising The liquid of various sizes of solid particle is made up of deposition of the particle on filter cake supporter, and described filtering medium layer is served as reasons Plastics fine powder bonds the porous plastic layer formed.

A kind of 3. association type filter press filter chamber according to claim 2, it is characterised in that：Described link (9) is Semicircular crotch structure, described filter cloth unit are no less than 2, not more than 6.

A kind of 4. association type filter press filter chamber according to claim 3, it is characterised in that：Described filter layer is divided into two Layer, including semi-transparent film layer (5) and filter layer of cloth (6), filter layer of cloth are arranged on the top of semi-transparent film layer, and filter layer of cloth is handed over by warp and weft Knit and form, warp and weft are formed by parallel be staggered of multifilament twisted threads, and filter cloth neck (8) is provided with charging aperture, are used Quality of rubber materials is made, and filter layer of cloth is pressed together in filter cloth neck, and parallel is vertically disposed with two rows, is staggered up and down, one of upper row Parallel is arranged on the top between two adjacent parallels of lower row.

A kind of 5. association type filter press filter chamber according to claim 4, it is characterised in that：Described filter layer passes through filter Hangnail is fixed between two layers of internal frame body on the grid of cloth framework internal frame body.

A kind of 6. association type filter press filter chamber according to claim 5, it is characterised in that：Described outer frame body is by 16 manganese Material is made, and described internal frame body is made up of hard alloy silk.

A kind of 7. association type filter press filter chamber according to claim 6, it is characterised in that：The filter cloth neck is by tube channel Part, outer end fastening end cap and inner side space washer composition, the passage pipe fitting in the filter cloth neck be annular, passage pipe fitting outside Surface is formed with screw thread；Outer end fastens end cap and the endoporus of inner side space washer is also formed with and the matching of the outer surface thread of passage pipe fitting The screw thread of conjunction；Filter cloth is clamped and fixed between outer end fastening end cap and inner side space washer；The filter cloth neck is by engineering plastic Expect injection molding.

A kind of 8. association type filter press filter chamber according to claim 7, it is characterised in that：Described hangnail is arranged on net On the tie point of lattice frames structure, the bearing of trend of the hangnail of same layer internal frame body is identical, and the bearing of trend of hangnail is vertical The plane where internal frame body.