CN212731200U

CN212731200U - High-pressure dewatering device in diaphragm plate

Info

Publication number: CN212731200U
Application number: CN202021224139.1U
Authority: CN
Inventors: 刘振华; 朱国利; 王建; 党明
Original assignee: Jingjin Environmental Protection Inc
Current assignee: Jingjin Equipment Co Ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-03-19
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses a high-pressure dewatering device in a diaphragm plate, wherein a core plate inside the diaphragm plate is provided with a direct-current half blind hole, through holes are formed in the upper surface and the lower surface of the core plate on the basis of the direct-current half blind hole, and high-pressure fluid enters each cavity of the core plate through a squeezing nozzle, a rubber sleeve and an embedded part, so that the diaphragm expands outwards to squeeze water in a filter cake, and the filter cake dewatering effect is achieved; the pressing nozzle fixing piece prevents the pressing nozzle from bursting and flying out due to high-pressure fluid, and plays a role in protection.

Description

High-pressure dewatering device in diaphragm plate

Technical Field

The utility model belongs to solid-liquid separation in-process pressure filter plate field relates to a reduce device that filter cake moisture content increases filtrating rate of recovery for the filter plate pressurization.

Background

The filter press is a universal solid-liquid separation device operated intermittently, a filter plate is a core element for filtering of the filter press, the filter plates are arranged on a frame, an oil cylinder compresses the filter plates, a material conveying pump conveys solid-liquid mixed materials into each filtering chamber from a feed hole to carry out low-pressure static filtering, particles in the materials are intercepted by the filter cloth to form filter cakes in the filtering chambers, and the recovery of filtrate and the purity of the filter cakes are directly influenced by the water content of the filter cakes, so that the method for reducing the water content of the filter cakes is the ultimate aim of filtering the materials by the filter press. After the material is filtered, the filter plate is pulled open by the plate pulling device, the filter cake falls freely under the action of gravity, and the filter press finishes one cycle of reciprocating work.

The existing filter plate can not bear enough high pressure, and has the following defects: high-pressure fluid is filled in the filter plate, so that the squeezing nozzle is cracked and splashed, and squeezing fails; tearing the membrane and the core plate of the filter plate to cause turbid filtrate, and collecting impure filtrate; the water content of the filter cake rises, and the filtering effect is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defect of current diaphragm filter plate, solving corresponding technical problem, providing a high pressure dewatering device in diaphragm plate.

The utility model provides a technical scheme that prior art problem adopted is: a high-pressure dewatering device in a diaphragm plate is characterized in that a core plate in the diaphragm plate is provided with a hole, and a squeezing nozzle and a fixing piece are additionally arranged on the outer side surface of the diaphragm plate, so that the contact part of the squeezing hole is not leaked, and the squeezing nozzle is not cracked and splashed when high-pressure fluid filled into the core plate impacts a diaphragm of a filter plate.

Further, the high-pressure dewatering device in the diaphragm plate, i company uses unique technology and special materials to heat and weld the diaphragm and the core plate into the diaphragm plate, transverse and straight blind holes are drilled in the core plate, a plurality of elliptical holes are formed in the surface of the core plate in a penetrating mode, the elliptical holes are overlapped with the transverse and straight blind holes, the spacing distances of the elliptical holes are equal, the number of the elliptical holes is changed along with the model of the filter plate, and the elliptical holes can be freely increased and decreased on the basis of not reducing the strength of the core plate.

Furthermore, in the diaphragm plate internal high-pressure dehydration device, the blind hole in the core plate is provided with the stainless steel embedded part, the stainless steel embedded part is internally and externally tapped, the external part of the embedded part is firmly connected with the blind hole, and the internal part of the embedded part is connected with the pressing nozzle in a fastening way.

Further, in the diaphragm plate internal high-pressure dehydration device, a rubber sleeve is arranged at the end part of the blind hole of the core plate close to the embedded part, is flush with the side surface of the plate and is in transition fit with the embedded part; the rubber sleeve is clamped between the squeezing nozzle and the embedded part, the embedded part is pushed outwards under the action of fluid, the rubber sleeve is squeezed to enable the rubber sleeve to tightly press the squeezing nozzle, and sealing is tighter.

Furthermore, an O-shaped sealing ring is sleeved in the high-pressure dehydration device in the diaphragm plate, and the O-shaped sealing ring is contacted with the inside of the squeezing nozzle on the side surface of the filter plate, so that high-pressure fluid is prevented from leaking from the semi-blind hole; the squeezing nozzle is made of stainless steel, is shaped like a medicine roller, a round table with a groove in the center flat cylinder is sleeved with an O-shaped sealing ring, the periphery of the flat cylinder is cut into a hexagon nut shape, the installation and operation are convenient, two ends of the flat cylinder are respectively tapped by long round columns with different threads, one end of the flat cylinder is connected with an embedded part, the other end of the flat cylinder is connected with a squeezing branch pipe, a through hole is formed in the center of the squeezing nozzle, and high-pressure fluid passes through the through hole.

Furthermore, the squeezing fixing piece of the high-pressure dewatering device in the diaphragm plate compresses the squeezing nozzle and is fixed on the side face of the filter plate through bolts, the center of the squeezing fixing piece is provided with a hole for tapping and penetrating one end of the squeezing nozzle, so that the squeezing nozzle is connected with the squeezing branch pipe, and the middle part of the squeezing fixing piece is sunken to cover the round table of the squeezing nozzle, so that the squeezing nozzle is compressed and fixed.

The utility model provides a high pressure dewatering device in diaphragm plate makes filter cake moisture content reduce, and the filtrating collection capacity increases, reduces the expense that follow-up filter cake cost was handled.

Drawings

Fig. 1 is an assembly schematic diagram of a filter plate and a dehydration device of a high-pressure dehydration device in a diaphragm plate of the utility model.

FIG. 2 is a schematic view of the internal cross-sectional structure of the high-pressure dewatering device in the diaphragm plate of the present invention.

Fig. 3 is an enlarged schematic view of the press nozzle fixing member and the press nozzle of the high-pressure dewatering device in the diaphragm plate of the present invention.

Reference numerals: 1-core plate through hole, 2-core plate direct-current semi-blind hole, 3-embedded part, 4-rubber sleeve, 5-O-shaped sealing ring, 6-pressing nozzle, 7-pressing fixing part, 8-sealing frame, 9-filtering support table, 10-feed hole, 11-quadrangular hole, 12-membrane and 13-core plate.

Detailed Description

The technical solution of the embodiments of the present invention will be described below with reference to the accompanying drawings of the embodiments of the high-pressure dewatering device in a diaphragm plate of the present invention, and the described embodiments are only some preferred embodiments, not all embodiments of the present invention. All other embodiments, which are not inventive, are within the scope of the present invention and are made by the skilled person in the art based on the embodiments of the present invention.

Example 1

A diaphragm plate internal high-pressure dehydration device comprises a core plate through hole 1, a core plate direct-current half blind hole 2, an embedded part 3, a rubber sleeve 4, an O-shaped sealing ring 5, a pressing nozzle 6, a pressing nozzle fixing part 7 and the like, wherein the pressing nozzle 6 is connected with a pressing branch pipe, high-pressure fluid passes through the pressing nozzle 6, the rubber sleeve 4 and the embedded part 3 and is introduced into the core plate direct-current half blind hole 2 and respectively enters cavities of all diaphragm plates from the core plate through hole 1, the high-pressure fluid impacts a diaphragm 12 to enable the diaphragm 12 to swell and compress a filter cake in a filter chamber, the filter cake is extruded, a part of filtrate is separated from the filter cake along with the continuous swelling of the diaphragm 12 which is continuously increased by the fluid, and is discharged from four corner holes 11 of the filter plate, so that the; when the pressure reaches a certain limit, the pressure is maintained for a few minutes, the pressure relief valve is opened, the pressure is reduced, the high-pressure fluid in the cavity of the core plate returns along the original path and is discharged from the other end of the pressing main pipeline, and the high-pressure dehydration of the filter cake is realized.

The diaphragm 12 and the core 13 of the diaphragm plate are made of polypropylene by pressing different dies and reserving certain machining allowance and shrinkage, but both materials are prepared by confidential formulas of our factories, the mixture ratio is different, and the pressing method is different, so that the obtained product has characteristics in toughness and strength and accords with respective working characteristics.

After the formed membrane 12 and the core plate 13 are placed on a horizontal plane and naturally cooled and contracted, the forming machine is shaped, the membrane 12 and the core plate 13 are heated and welded into a membrane plate through a special process, machining is carried out, the sealing frame 8, the filtering support platform 9, the feeding hole 10, the quadrangular hole 11 and all side faces of the filter plate are milled, the quality of the filter plate is guaranteed to be over-closed, and the appearance is attractive.

Claims

1. The utility model provides a high pressure dewatering device in diaphragm board, mainly includes squeezes the mounting, squeezes and chews, "O" type sealing washer, rubber sleeve, stainless steel built-in fitting, half blind hole of core board direct current and core run-through hole, its characterized in that, the core through hole stack is beated on half blind hole of core board direct current, high-pressure fluid is through squeezing to chew and get into half blind hole of core board direct current, pass rubber sleeve and built-in fitting and get into the diaphragm board cavity from the core through hole, the impact diaphragm outwards swells and squeezes the filter cake, and then reduces the filter cake moisture content.

2. The diaphragm plate internal high pressure dewatering device of claim 1, wherein the embedded part and the rubber sleeve are embedded in the direct current semi-blind hole of the core plate, the internal and external surfaces of the embedded part are tapped, the embedded part is connected with the press nozzle, the rubber sleeve is arranged at the middle part, the rubber sleeve is extruded to be outwards elastic and is in close contact with the press nozzle, and the high pressure fluid is ensured not to leak.

3. The high pressure dewatering device in diaphragm plate of claim 1, wherein the squeeze nozzle is shaped like a drug roller, the inside of the central flat cylinder is grooved, and an "O" shaped seal ring is embedded to perform double functions with the rubber sleeve to ensure that high pressure fluid does not leak at the squeeze nozzle, two ends of the squeeze nozzle are respectively tapped by long cylinders with different threads, one end of the squeeze nozzle is connected with the embedded part, the other end of the squeeze nozzle is connected with the squeeze branch pipe, and a through hole is formed in the center of the squeeze nozzle for the high pressure fluid to pass through.