CN210993157U

CN210993157U - Filter disc of filter press and filter assembly using filter disc of filter press

Info

Publication number: CN210993157U
Application number: CN201921520871.0U
Authority: CN
Inventors: 张敏; 王新庆
Original assignee: Xinxiang Zhonghui Filter Co ltd
Current assignee: Xinxiang Zhonghui Filter Co ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-07-14
Anticipated expiration: 2029-09-12

Abstract

The utility model discloses a filter press filter disc and use filter assembly of this filter press filter disc belongs to pressure filter technical field. The technical scheme of the utility model main points do: the utility model provides a pressure filter disc includes the perforated plate and sinters the compound sintering net on the perforated plate, and the aperture of this compound sintering net is by filtering out the face grow gradually to filtering out the face, the utility model discloses still specifically disclose the filter assembly who uses this pressure filter disc. The utility model discloses rigidity is big, and the roughness is superior, high temperature and high pressure resistant, and impact resistance is good, non-deformable, and filter fineness is accurate, and chemical resistance is good, and the stratum reticulare distributes and adopts from the filtering surface to filter out the face by smart to the unique structure of dredging, lets filterable material more circulate more smoothly, has increased material flow, and then effectively promotes production efficiency.

Description

Filter disc of filter press and filter assembly using filter disc of filter press

Technical Field

The utility model belongs to the technical field of pressure filter equipment, concretely relates to pressure filter disc and use filter assembly of this pressure filter disc.

Background

1,4-Butanediol (1, 4-Butanediol, BDO for short) is an important basic organic chemical and fine chemical raw material, has wide application, and various derivatives of the BDO are fine chemical products with high added values and are widely used in multiple fields in national economy. The 1,4-butanediol has been formed by processes such as acetylenic aldehyde process, butadiene acetyloxidation process, dichlorobutene hydrolysis process, allylic hydroformylation process, and maleic anhydride hydrogenation process, according to various routes of raw materials. At present, filter presses produced in China have a plurality of varieties, but materials with very fine grain diameter of 1,4-butanediol and materials with large viscosity are difficult to process, so that a bottleneck is brought to industrial production, the filtering time is long, the filtering is not dry, not only is the energy consumption of the filter large, but also the energy consumption of subsequent washing and drying is greatly increased, and in addition, the conventional filter uses a simple sintering net which is a dense-grain woven net, the flow rate is not enough, and the strength is not enough.

Disclosure of Invention

The utility model provides a technical problem provide a simple structure, reasonable in design, impact resistance can be good and the filter assembly of this pressure filter disc is used to pressure filter disc that material flow is big.

The utility model discloses a solve above-mentioned technical problem and adopt following technical scheme, a pressure filter disc, its characterized in that includes perforated plate and the compound sintering net of sintering on the perforated plate, and the aperture of this compound sintering net is filtered out the face grow gradually by the filter surface.

Preferably, the perforated plate is a perforated plate with the thickness of 4-8mm, connecting holes are uniformly distributed in the perforated plate along the circumferential direction, a non-porous area matched with the compressing surface of the outer ring filter disc frame is arranged at the circumferential edge of the outer side of the perforated plate, a non-porous area matched with the compressing surface of the inner ring filter disc frame is arranged at the circumferential edge of the inner side of the perforated plate, filtering holes formed by punching are uniformly distributed in the perforated plate between the inner side non-porous area and the outer side non-porous area, the aperture of each filtering hole is 5-10mm, and the hole center distance between every two adjacent filtering holes is 10-20.

More preferably, the thickness of the porous plate is 6mm, the aperture of the filtering hole on the porous plate is 7mm, and the hole center distance between adjacent filtering holes is 14 mm.

Preferably, the porous plate is sintered with 5-9 layers of stainless steel nets with gradually increased pore diameters from the filtering surface to the filtering surface, and the stainless steel nets are plain woven nets with the largest opening rate.

Preferably, the composite sintering net comprises a flow channel layer, a support protective layer and a filter control layer which are sequentially distributed on the porous plate from inside to outside, wherein the flow channel layer is 3-7 layers, the aperture of the flow channel layer is 2400mm, the support protective layer is 1 layer, the aperture of the support protective layer is 150-200 μm, the aperture of the filter control layer is 1 layer, and the aperture of the filter control layer is 10-50 μm.

More preferably, the pore diameter of the multilayer stainless steel sintered net in the flow channel layer gradually increases from the filtering surface to the filtering surface.

The utility model provides an use filter assembly of above-mentioned pressure filter disc, its characterized in that includes the pressure filter disc that the perforated plate set up relatively, set up the outer ring filter plate rail on the circumference terminal surface of pressure filter disc outside and set up the interior ring filter plate rail on the circumference terminal surface of pressure filter disc inboard, interior ring filter plate rail and outer ring filter plate rail compress tightly sealed with the sclausura district of pressure filter disc inside and outside through interior ring clamp sleeve and outer ring clamp sleeve respectively, form the filtrate cavity between the pressure filter disc that makes the relative setting, be equipped with the radial discharge gate that is linked together with the filtrate cavity on the outer ring filter plate rail, the pressure filter disc that sets up relatively compresses tightly fixedly through the connecting swivel nut and the connecting bolt that match with the connecting hole on the perforated plate.

Compared with the prior art, the utility model following beneficial effect has: the utility model discloses rigidity is big, and the roughness is superior, high temperature and high pressure resistant, and impact resistance is good, non-deformable, and filter fineness is accurate, and chemical resistance is good, and the stratum reticulare distributes and adopts from the filtering surface to filter out the face by smart to the unique structure of dredging, lets filterable material more circulate more smoothly, has increased material flow, and then effectively promotes production efficiency.

Drawings

FIG. 1 is a schematic structural view of a filter disc of a medium pressure filter of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic structural view of a filter assembly according to the present invention;

FIG. 5 is a side view of FIG. 4;

FIG. 6 is a schematic view of the overall structure of the medium pressure filter of the present invention;

fig. 7 is a schematic structural view of the filter scraper of the present invention;

fig. 8 is a side view of fig. 7.

In the figure: 1-perforated plate, 2-composite sintered net, 3-connecting hole, 4-outer circular ring filter plate frame, 5-non-hole area, 6-inner circular ring filter plate frame, 7-filtering hole, 8-inner circular ring compression sleeve, 9-outer circular ring compression sleeve and 10-discharging hole.

Detailed Description

The technical scheme of the utility model is described in detail with the attached drawings, a filter disc of a filter press comprises a porous plate 1 and a composite sintering net 2 sintered on the porous plate 1, the aperture of the composite sintering net 2 is gradually enlarged from the filtering surface to the filtering surface, the porous plate 1 is a punching plate with the thickness of 4-8mm, in particular a punching plate with the thickness of 6mm, connecting holes 3 uniformly distributed along the circumferential direction are arranged on the porous plate 1, a non-porous area 5 matched with the pressing surface of an outer ring filter disc frame 4 is arranged at the circumferential edge part at the outer side of the porous plate 1, a non-porous area 5 matched with the pressing surface of an inner ring filter disc frame 6 is arranged at the circumferential edge part at the inner side of the porous plate 1, filtering holes 7 formed by punching are uniformly distributed on the porous plate 1 between the inner and outer non-porous areas 5, the aperture of the filtering holes 7 is 5-10mm, preferably 6-8mm, in particular 7mm, the hole center, preferably 12-18mm, in particular 14 mm; the porous plate 1 is sintered with 5-9 layers of stainless steel nets with the pore diameters gradually increasing from the filtering surface to the filtering surface, the stainless steel nets are plain woven nets with the largest aperture ratio, the multi-layer stainless steel nets comprise a flow channel layer, a supporting protective layer and a filtering control layer which are sequentially distributed on the porous plate from inside to outside, the flow channel layer is 3-7 layers, the pore diameter of the flow channel layer is 300-2400mm, the pore diameter of the multi-layer stainless steel sintering net in the flow channel layer is gradually increased from the filtering surface to the filtering surface, the supporting protective layer is 1 layer, the pore diameter of the supporting protective layer is 150-200 mu m, the pore diameter of the filtering control layer is 1 layer, and the pore diameter of the filtering control layer is 10-50 mu m.

Use filter assembly of above-mentioned pressure filter disc, the pressure filter disc that sets up relatively including perforated plate 1, set up outer ring filter plate frame 4 on the circumference terminal surface of pressure filter disc outside and set up interior ring filter plate frame 6 on the inboard circumference terminal surface of pressure filter disc, interior ring filter plate frame 6 and outer ring filter plate frame 4 compress tightly sealed with the aporate district 5 of pressure filter disc inside and outside through interior ring pressing sleeve 8 and outer ring pressing sleeve 9 respectively, make and form the filtrate cavity between the pressure filter disc of relative setting, be equipped with the radial discharge gate 10 that is linked together with the filtrate cavity on the outer ring filter plate frame 4, the pressure filter disc of relative setting compresses tightly fixedly through the connection swivel nut and the connecting bolt that match with perforated plate 1 on the connecting hole 3.

The utility model discloses a concrete operation process does: the solid-liquid mixture obtained in the process of synthesizing the 1, 4-dibutanol is added into a cylindrical cavity of the filter disc assembly from a feed inlet on one side of the filter disc assembly and is uniformly distributed in the cylindrical cavity, the solid-liquid mixture sequentially passes through a filter control layer, a support protective layer, a flow passage layer and filter holes in a porous plate on a filter disc of a filter press to enter a filtrate cavity and is discharged from a discharge port on an outer annular filter disc frame, particulate impurities in the solid-liquid mixture are intercepted on the filter control layer, and the particulate impurities are cleaned through filter scrapers arranged on two sides of the filter assembly, so that the repeated recycling of the filter assembly is realized.

The foregoing shows and describes the general principles of the present invention, with its principal features and advantages, and further, various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A filter disc of a filter press is characterized by comprising a porous plate and a composite sintering net sintered on the porous plate, wherein the aperture of the composite sintering net is gradually enlarged from a filtering surface to a filtering surface, the composite sintering net comprises a flow channel layer, a supporting protective layer and a filtering control layer which are sequentially distributed on the porous plate from inside to outside, the flow channel layer is 3-7 layers, the aperture of the flow channel layer is 2400mm, the aperture of the supporting protective layer is 1 layer, the aperture of the supporting protective layer is 150 μm, the aperture of the filtering control layer is 1 layer, and the aperture of the filtering control layer is 10-50 μm.

2. The filter disc of filter press according to claim 1, wherein: the perforated plate is a perforated plate with the thickness of 4-8mm, connecting holes are uniformly distributed in the perforated plate along the circumferential direction, a non-porous area matched with the compressing surface of the outer ring filter plate frame is arranged at the circumferential edge of the outer side of the perforated plate, a non-porous area matched with the compressing surface of the inner ring filter plate frame is arranged at the circumferential edge of the inner side of the perforated plate, filtering holes formed by punching are uniformly distributed on the perforated plate between the inner side non-porous area and the outer side non-porous area, the aperture of each filtering hole is 5-10mm, and the distance between the centers of adjacent filtering holes is 10-.

3. The filter disc of filter press according to claim 1, wherein: the thickness of the porous plate is 6mm, the aperture of the filtering holes in the porous plate is 7mm, and the distance between the centers of the adjacent filtering holes is 14 mm.

4. The filter disc of filter press according to claim 1, wherein: 5-9 layers of stainless steel nets with the pore diameters gradually increased from the filtering surface to the filtering surface are sintered on the porous plate, and the stainless steel nets are plain woven nets with the largest aperture ratio.

5. The filter disc of filter press according to claim 1, wherein: the aperture of the multilayer stainless steel sintering net in the flow channel layer is gradually enlarged from the filtering surface to the filtering surface.

6. A filter assembly using the filter disc of the filter press machine according to any one of claims 1 to 5, which comprises a filter disc of the filter press machine with opposite porous plates, an outer ring filter disc frame arranged on the circumferential end surface of the outer side of the filter disc of the filter press machine and an inner ring filter disc frame arranged on the circumferential end surface of the inner side of the filter disc of the filter press machine, wherein the inner ring filter disc frame and the outer ring filter disc frame are respectively compressed and sealed with the non-porous areas on the inner side and the outer side of the filter disc of the filter press machine through an inner ring compression sleeve and an outer ring compression sleeve, so that a filtrate chamber is formed between the filter discs of the filter press machine arranged oppositely, the outer ring filter disc frame is provided with a radial discharge port communicated with the filtrate chamber, and the filter disc of the filter press machine.