CN217287287U

CN217287287U - Device for observing filtrate in dark flow of filter press

Info

Publication number: CN217287287U
Application number: CN202220686004.XU
Authority: CN
Inventors: 王健; 高婧; 高洪卫; 张建; 王风东
Original assignee: Jingjin Equipment Co Ltd
Current assignee: Jingjin Equipment Co Ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-08-26
Anticipated expiration: 2032-03-28

Abstract

The utility model discloses a pressure filter undercurrent viewing device, including the short hole, sealed piece, converge the runner, oval recess, the undercurrent hole, open oval recess in the side of filter plate, the recess intercommunication short hole, the way of converging, sealed piece is installed in the filter plate side, cover oval recess, the recess is located the inside of "O" type sealing washer, screw-up is used to sealed piece in the filter plate side, filtrating flows through the short hole from converging the way and gets into the in-process in undercurrent hole, can be clear through the sealed piece the condition of observing filtrating, the accurate filter plate of judging the damage, the filter cloth is at the concrete position of pressure filter, the shortcoming that filtrating can not directly perceived when having solved pressure filter undercurrent outflow liquid can not be looked over to the filtrating, the filter plate is investigated fast, the filter cloth, and the production efficiency is improved.

Description

Device for observing filtrate in dark flow of filter press

Technical Field

The utility model belongs to the field of filtering equipment (fluid machinery) in the solid-liquid separation process, and relates to a visual detection device for damage of filter cloth and filter plate of a filter press.

Background

The filter press is a universal solid-liquid separation device and is widely applied to the industries of chemical industry, pharmacy, dye, food, ceramics, environmental protection and the like. The filter plate and the filter cloth are core filter elements of the filter press, and the filter cloth is arranged on the filter plate and filters materials together with the filter plate. The core plate and the diaphragm are bonded into a diaphragm filter plate, the diaphragm plate and the chamber plate are matched for use and are arranged on a cross beam of the filter press, generally, a diaphragm filter plate and a solid chamber filter plate are combined for use, and the concave parts of the two filter plates form a filter chamber; the membrane filter press is a pressurized variable-volume filtering device, and the filtering process is as follows: the filter material is pressurized and input through a filter plate feeding hole for low-pressure filtration, particles in the material are intercepted by the filter cloth to form a filter cake, filtrate flows out through a filter plate corner hole, a high-pressure liquid or gas medium is introduced into a membrane plate closed chamber to enable a membrane plate tympanic membrane to extrude the filter cake, the filter chamber bears the filter cake, and gravity cake unloading is realized by pulling the filter plate open.

In the dark effluent of the existing filter press, as the filtrate is discharged to a pipeline through a dark flow hole, the condition of the filtrate cannot be observed, the condition of the liquid flowing out of the pipeline can only be found, and then the filter plate or the filter cloth is damaged, but the turbid filtrate cannot judge that the filter cloth or the filter plate is damaged, and the filter cloth or the filter plate is required to be inspected and distinguished one by one, so that the time is wasted, and the efficiency is low; even if the transparent hose is arranged on the side face of the filter plate to observe the filtrate, the inner wall of the long-time transparent hose is fuzzy, specific filtrate conditions cannot be observed, the hose is frequently replaced, material resources are consumed, the hose is thin and small in bending degree, the hose is easily blocked when the filtrate is slightly viscous, a connector is collapsed, the filtrate is splashed everywhere, filtrate loss is caused, and the working environment is dirty and poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defect of current pressure filter undercurrent, solving corresponding technical problem, providing a pressure filter undercurrent viewing device.

The utility model provides a technical scheme that prior art problem adopted is: the utility model provides an observation device, includes the short hole, seals the piece, converges the runner, oval recess, dark flow hole, opens oval recess in the side of filter plate, and recess intercommunication short hole, conflux way, sealed piece are installed in the filter plate side, and sealed recess, filtrating flow through the in-process that the short hole got into dark flow hole from conflux way, can be clear through the condition of observing filtrating of sealed piece, and the accurate filter plate, the filter cloth that judge the damage are at the concrete position of pressure filter.

Furthermore, the position of the original confluence channel is unchanged, a transverse short hole is formed in the center line of the blind flow hole, and the two holes are communicated through an elliptical groove; the oval recess is opened in the side of filter plate, the bore diameter that oval recess was opened is less than the internal diameter of "O" type sealing washer, oval recess is located the inside of "O" type sealing washer, the sealing block is fastened in the filter plate side with the screw, avoid filtrating toward outer splash, because of the material of sealing block is ya keli, transparent like glass, according to its characteristic, can clearly look over the filtrating condition, when observing that the filtrating is muddy or when inconsistent with other sealing block colours from the sealing block, can confirm that this board or cloth have the damage, need shut down to look over and change filter plate or filter cloth, reduce the time of investigation filter plate, filter cloth, promote maintenance rate.

Furthermore, the depth of the oval groove is about 30 mm, the width of the oval groove is smaller than the width of the O-shaped ring but larger than the diameter of the confluence channel, and the diameter of the short hole is larger than the diameter of the confluence channel but smaller than the diameter of the groove; the surface of the acrylic block is provided with a groove, an O-shaped sealing ring is embedded, one third of the surface of the O-shaped sealing ring embedded in the acrylic block is exposed, and the side surface of the filter plate is extruded under the action of the fastening screw, so that the sealing performance of the sealing block is ensured, but the observation of filtrate is not influenced.

The utility model provides a filtrating device is observed to pressure filter undercurrent, simple structure, surveyability can detect the filter plate or the filter cloth of concrete damage under the state that need not block by block investigation filter plate, improve production efficiency.

Drawings

Fig. 1 is a front installation schematic diagram of the device for observing filtrate in a dark flow of the filter press of the utility model.

Fig. 2 is a schematic side view of the filter plate, filter cloth and observation device of the device for observing filtrate in dark flow of the filter press of the present invention.

Fig. 3 is a schematic view of the sealing block of the filtrate observing device for the dark flow of the filter press of the present invention.

Reference numerals: 1-short hole, 2-sealing block, 3-blind hole, 4-converging channel (converging channel), 5-small liquid outlet hole, 6-elliptical groove, 7-filter plate, 8-filter cloth, 21- "O" shaped sealing ring, 22-fastening hole and 23-acrylic block.

Detailed Description

The technical solutions in the embodiments of the present invention are described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some preferred embodiments of the present invention, but not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

Examples

A filter press dark current observes the filtrate device, installs the seal block 2 additionally at the dark current hole position of 7 sides of filter plate, the seal block inlays "O" type sealing washer 21, the four corners is opened the fastening hole 22, fix on the side of the filter plate with the screw, the acrylic block 23 material has firm, wear-resisting, self transparency is high, have very good weatherability and high temperature resistance, adapt to the outdoor adverse circumstances that the filter press uses; the filter cloth 8 covers the filter plate, the filter plate and the filter cloth form the core element of the filter press, when feeding, no matter the filter cloth or the filter plate is damaged, the color of the sealing block is observed in time, the color is turbid or obviously inconsistent with the color of other sealing blocks, and the damage of the specific plate or cloth can be easily judged; the filter cloth is damaged and can not filter materials, so that the filtrate is turbid; when the filter plate is cracked to form a gap, the material mixed with filtrate directly enters the small liquid outlet hole 5, flows into the short hole 1 through the converging channel 4 and is discharged out through the blind flow hole 3, the filter plate is marked as long as the color of the sealing block is obviously changed, the marked filter plate 7 is extracted after the machine is stopped, the filter plate or the filter cloth is carefully checked and confirmed to be damaged, and the trouble of checking all the filter plates by lifting one by one is avoided; on the basis of the original filter plate, the position and the size of a confluence channel are unchanged, a short hole 1 is drilled at the position of a dark flow hole close to the edge of the filter plate, the short hole is communicated with a dark flow hole 3, and the diameter of the short hole is slightly larger than that of the confluence channel 4; an elliptical groove is additionally arranged on the side surface of the plate, a short hole and a confluence channel are arranged in the groove, but the diameter of the groove is smaller than the inner diameter of the O-shaped sealing ring.

This utility model discloses can not only judge the muddy concrete position of pressure filter during operation filtrating, can also further investigate out damaged filter plate, filter cloth at the in-process of hoisting the filter plate, high-efficient swift, practice thrift maintenance duration, promote work efficiency.

Claims

1. The device for observing filtrate by using the blind flow of the filter press comprises a filter plate, a sealing block, a short hole, a blind flow hole, a converging flow channel and an elliptical groove.

2. The device for observing filtrate in the dark flow of the filter press according to claim 1, wherein an elliptical groove is formed in the side surface of the filter plate, the diameter of the hole formed by the groove is smaller than the inner diameter of the O-shaped sealing ring, the elliptical groove is positioned in the O-shaped sealing ring, the depth of the groove is 30 mm, the width of the groove is smaller than the width of the O-shaped sealing ring but larger than the diameter of the confluence channel, and the diameter of the short hole is larger than the diameter of the confluence channel but smaller than the diameter of the groove; the original position of the confluence channel is unchanged, a transverse short hole is formed in the center line of the blind flow hole, and the two holes are communicated through an elliptical groove.

3. The device for observing the filtrate in the dark flow of the filter press according to claim 1, wherein the sealing block is fastened on the side surface of the filter plate by screws, a groove is formed in the surface of the acrylic block, an O-shaped sealing ring is embedded in the groove, one third of the surface of the O-shaped sealing ring embedded in the acrylic block is exposed, and the side surface of the filter plate is pressed under the action of the fastening screws to ensure the performance of the sealing block.