CN2113100U

CN2113100U - Inner inlay grillwork type filting plate

Info

Publication number: CN2113100U
Application number: CN 92214236
Authority: CN
Inventors: 沈浩楠
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-03-09
Filing date: 1992-03-09
Publication date: 1992-08-19

Abstract

The utility model provides a new structure of a filter plate of a box type filter press or a plate frame type filter press. Side frames of the filter plate are composed of irregular profiled steel pipes. A space lattice frame is arranged in an inner cavity and is formed by rectangular ribs which are arrayed in parallel and are transversely and lengthways overlapped into an upper layer and a lower layer. Both ends of the ribs are respectively inserted into positioning grooves of positioning plates of left, right, upper and lower side frames. The positioning plates are connected with the inner walls of the side frames for forming the whole of the filter plate by using a welding mode or a gluing mode or a welding and gluing mode. The structure has the characteristics that filtering areas are increased; pressure difference between both sides of a filtering cake is increased; the filter plate has no fracture, light weight, long service life, high filtering efficiency, etc. The new structure can replace the existing filter plates to increase filtering efficiency without changing other structures of the filter press.

Description

Inner inlay grillwork type filting plate

The embedded space of the utility model screen work filter plate is a kind of substantial improvements from shape, structure, technology and material aspect to existing box type filter pressing plate and plate and frame filter press filter-plate structure.

At present the filter plate of chamber-type press filter of producing and plate and frame filter press all is the structure that adopts cast iron or polypropylene plastics that frame and web are cast as one, make concave convex texture on the web face, vertical and horizontal groove forms the filtrate runner, and the square of projection or vertical bar play the effect of supporting the filter cloth effect and bearing pressure.Web thickness is a fixed number, and groove is dark, influences the strength and stiffness of web, so generally do more shallowly, but filter cake is pressed into bottom land with filter cloth in filter process, stops up groove, make the water of extrusion can not Channel Group to delivery port, by the filter cake intermolecular penetration, flow to apopore gradually, so filter efficiency is low.Chinese patent 85200675U hyperboloid filter, its structure are to be interweaved by double-deck wire rod with weaving into the hyperboloid filter screen that protrudes laterally, because deflection deformation is serious behind the pressurized, intensity is low, and filter screen often damages, and does not enter the practical stage so far.DRP 2727957 double-layer leaching net suspension decompression dehydration devices adopt the flat plate framed structure structure, and its globality, space rigidity, that material consumption can not show a candle to the space frame structure is reasonable.China's patent 91214723 adopts fence embedding casting mode, only forms a kind of sheet frame grid filter with filter plate and fence, can't reach the effect of filtration at all, under the pressure of 10MPa, frame intensity and sealing all can't be carried out operate as normal, and yield rate is low, cost is high, fail so far to realize.Chinese patent 89219069 anticorrosion filter presses are also only changing aspect material, and filter-plate structure there is no innovation.The permanent in the world polypropylene filter press filter board employing salient point filtering surface of believing BTR Co., Ltd though slightly can increase filter area, is failed just to improve filter cake pressure at both sides difference and is made substantial improvement.

The purpose of this utility model, be to provide a kind of embedded space screen work filter plate, to increase filter area, improve the pressure differential of filter cake both sides, thereby raising filter efficiency, the alternative existing chamber-type press filter and the filter plate of plate and frame filter press reach and raise the efficiency, energy savings and the purpose that reduces cost.

The utility model becomes the steel pipe in square type cross section to form frame by steel tubes or with angle steel to joint welding.The inner chamber of frame is cut into small-sized band steel, round steel draw down, plastics rib by the rectangle rib or with steel plate, divide two-layer up and down, respectively be equidistant parallel and arrange, the space screen work is formed in stack in length and breadth.Rib two ends, upper strata are flush-mounted in the locating slot of frame the right and left location-plate and reinforce, and lower floor rib two ends are flush-mounted in frame and reinforce in the locating slot of both sides location-plate up and down.Location-plate is reinforced with welding, method and frame bonding or that the weldering bonding is closed.Two-layer up and down rib respectively is provided with the rib that has the location shallow slot, so that two-layer up and down mutual location.When insufficient rigidity, can increase a boss.This filter plate that does not have web all is suitable at all places filtrate channel and wash water channel arrangement.For need corrosion-resistant filter plate, can be by mass-impregnation, ooze, be coated with, brush, spray, plate anti-corrosion material in advance to handle.

The utility model can improve the pressure differential of filter cake both sides owing to adopted embedded space frame structure; Increase filter area; But steel tubes is done the frame weight reduction, is reduced cost, and boosts productivity and yield rate; Can prevent that with location-plate and frame welding liquid from entering frame inside; Adopt technique for sticking can avoid welding the distortion that causes.Compare with other filter-plate structure, do not changing under structure of pressing filter, the identical condition of work, have easily manufactured, do not rupture, in light weight, the life-span long, high efficiency of filtration.

Describe the utility model example in detail below in conjunction with accompanying drawing:

Fig. 1: structural representation;

Fig. 2: filtrate channel, rib, frame are arranged schematic diagram;

Fig. 3: a boss schematic diagram;

Fig. 4: multiple filter pulp access diagram.

The embedded space of the utility model screen work filter plate is formed framework by chapped pipe 1, and rib 2 superposes in length and breadth and forms the space screen work, and location-plate 3, positioning rib 4 and peripheral location-plate 5 threes' of filter pulp passage groove correspondence mutually are convenient to rib and are all located in direction in length and breadth.Rib welds (gluing) jail after embedding the location board slot.Propping up boss 6 usefulness bolts tightens up by screen work and welds with screen work.7 is the structure of chamber pressure filter board filter pulp passage, and 8 is delivery port.

Claims

Embedded space screen work filter plate is the new construction of filter press filter board, it is characterized in that the filter plate frame is to be welded by steel tubes, inner chamber is arranged in parallel by the rectangle rib, the space screen work is formed in two-layer up and down stack in length and breadth, the rib two ends are inlaid in the locating slot of location-plate, location-plate connects with the frame inwall with welding, method bonding or that the weldering bonding is closed, forms the integral body of embedded space screen work filter plate.