CN210845399U

CN210845399U - Automatic plate-pulling pressure filter of polypropylene high-pressure diaphragm

Info

Publication number: CN210845399U
Application number: CN201921412820.6U
Authority: CN
Inventors: 尚明亮
Original assignee: Yunnan Yuxi Yukun Iron and Steel Group Co Ltd
Current assignee: Yunnan Yuxi Yukun Iron and Steel Group Co Ltd
Priority date: 2019-08-28
Filing date: 2019-08-28
Publication date: 2020-06-26
Anticipated expiration: 2029-08-28

Abstract

The utility model discloses a polypropylene high-pressure diaphragm automatic plate-pulling filter press, which comprises a thrust plate, a filter plate, cross beams, a pressing plate, an oil cylinder and a frame, wherein two cross beams are fixedly arranged on the frame, the filter plate is arranged between the two cross beams, the two ends of the filter plate are respectively provided with the thrust plate and the pressing plate, one end of the pressing plate is connected with a hydraulic telescopic rod, the hydraulic telescopic rod is connected with the oil cylinder, the oil cylinder is arranged at the end of the cross beam, and the filter cloth is arranged on the filter plate; the method is characterized in that: a diaphragm filter plate matched with each two filter plates is arranged between the two filter plates, the diaphragm filter plates are hollow, a compression pipe is arranged below the cross beam, and a pipeline is arranged on the compression pipe and connected to each diaphragm filter plate; the problem that the water content of the sludge is too high when a common sludge machine is used for treating converter dedusting water is solved; through the arrangement of the device, the secondary diaphragm squeezing is adopted to squeeze the mud from the back, the time efficiency is improved by half, and the water content of the mud cake is improved to be reduced to below 15 percent, so that the direct material proportioning in the sintering process is met.

Description

Automatic plate-pulling pressure filter of polypropylene high-pressure diaphragm

Technical Field

The utility model relates to a recyclable steel smelting process technology, in particular to an automatic pulling plate filter press with a polypropylene high-pressure diaphragm.

Background

In the process of steel making, converter dedusting water of a steel mill is a main sewage source of the steel mill, the water contains a large amount of impurities such as iron scales and the like, if the impurities are discarded, the impurities such as iron and the like in the water are relatively wasted, sludge generated after the dedusting water is treated can be sent to a company for sintering and recycling after being treated by a filter press, but after the converter dedusting sewage is treated by a site general sludge filter press, the water content of the sludge is more than 30 percent, and the requirement of direct batching and use in sintering cannot be met. According to the field condition in steel making, two polypropylene high-pressure diaphragm secondary squeezing filters are additionally arranged at the position of an original filter press, the problem that the secondary diaphragm squeezing drying is adopted in the traditional filtering process, the time efficiency is improved by half, the water content of a mud cake is improved to be lower than 15%, and the requirement of direct material proportioning in sintering is met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic arm-tie pressure filter of polypropylene high pressure diaphragm solves ordinary mud machine and handles converter dedusting water, the too high problem of mud water content.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a polypropylene high-pressure diaphragm automatic plate-pulling filter press comprises a thrust plate, filter plates, cross beams, a pressing plate, an oil cylinder and a frame, wherein the frame is fixedly provided with the two cross beams; the method is characterized in that: a diaphragm filter plate matched with the two filter plates is arranged between every two filter plates, the diaphragm filter plates are hollow, a compression pipe is arranged below the cross beam, and a pipeline is arranged on the compression pipe and connected to each diaphragm filter plate.

Furthermore, a groove is arranged in the cross beam, and a membrane pulling device for opening the filter plate is arranged in the groove.

Furthermore, the film drawing device comprises a sliding column fixedly arranged in a cross beam groove, crescent-shaped check blocks are arranged on the sliding column in a sliding connection mode, the groove, extending out of the cross beam, of each check block is connected with a driving lug on the side wall of the filter plate, a steel rope is connected between every two check blocks, a steel rope on the check block close to one end of each thrust plate is fixedly arranged on the thrust plate, and a steel rope at the other end of each thrust plate is fixedly arranged on the pressing plate.

Furthermore, a rolling shaft is arranged at the joint of the driving lug and the cross beam in a switching manner.

Further, the drive lugs are longer than the cross beam.

Further, the length of the roller exceeds that of the cross beam.

Compared with the prior art, the beneficial effects of the utility model are that:

through the setting of this device, will follow the wringing for the secondary diaphragm squeezes futilely, improve half on time efficiency, the mud cake moisture content improves and falls to below 15% moreover, satisfies the sintering and directly prepares burden the use.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Figure 2 schematic diagram of the utility model drawing device.

In the figure, 1-thrust plate, 2-diaphragm filter plate, 3-filter plate, 4-compression tube, 5-beam, 6-compacting plate, 8-oil cylinder, 9-frame, 10-sliding column, 11-block, 12-roller, 13-steel rope and 14-driving lug.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1:

as shown in the figure, the polypropylene high-pressure diaphragm automatic plate-pulling filter press comprises a thrust plate 1, a filter plate 3, cross beams 5, a pressing plate 6, an oil cylinder 8 and a frame 9, wherein the frame 9 is fixedly provided with the two cross beams 5, the filter plate 3 is arranged between the two cross beams 5, the two ends of the filter plate 3 are respectively provided with the thrust plate 1 and the pressing plate 6, one end of the pressing plate 6 is connected with a hydraulic telescopic rod, the hydraulic telescopic rod is connected with the oil cylinder 8, the oil cylinder 8 is arranged at the end of the cross beam 5, and the filter cloth is arranged on the filter.

The operation of a filter press generally comprises the following steps:

1. preparing: all the filter plates are integrated together in advance and aligned;

2. and (3) compacting: after the filter plates and the like are aligned, the hydraulic telescopic rod is started to press the filter plates;

3. slurry feeding: feeding after compaction, and simultaneously maintaining pressure or washing;

4. loosening: after a period of time, beginning to release pressure and open the filter plate after the moisture is almost filtered;

5. unloading: the filter plates are pulled apart one by one, and filter cakes on the filter plates fall off, and the process of pulling apart the filter plates is usually completed by a matched automatic manipulator.

For the device, a diaphragm filter plate 2 matched with every two filter plates 3 is arranged between every two filter plates, the diaphragm filter plate 2 is hollow, a compression pipe 4 is arranged below a cross beam 5, and a pipeline is arranged on the compression pipe 4 and connected to each diaphragm filter plate 2.

The diaphragm squeezing is characterized in that the function of (washing or non-washing) inflation (water) squeezing is added on the basis of a chamber type filter press, and the adoption of the diaphragm technology realizes pre-squeezing before water washing, so that cracks in a filter cake can be compacted, the washing time is short, the effect is good, and the washing water consumption is small; after the solid content is increased, the strength of the filter cake is increased, meanwhile, the binding force of the filter cake on the filter cloth is reduced, and the cake is quickly and easily unloaded. The hanging diaphragm press is characterized by that the box-type filter plate is changed into a middle polypropylene-added plate, two side rubber (leather) films are fixed with liquid outlet device by means of flange, and after having been tightly pressed, two sealing sandwich layers are formed. In order to ensure the operation of the membrane filter press to the maximum extent, a pressing medium (compressed air or water) can be used as a membrane filling medium, and suspended compressed air (water) has two modes of internal blowing and external blowing; the embedded compressed air (water) is only in an external blowing mode and is selected according to production requirements. After compressed air (water) enters the carriage plate through the compression pipe 4, the elastic action of the involucra is started, the filter cake accumulated in the filter chamber is expanded and squeezed, and the filter cake is pressed to remove liquid (water) again.

According to the field condition in steel making, two polypropylene high-pressure diaphragm secondary squeezing filters are additionally arranged at the position of an original filter press, the problem that the secondary diaphragm squeezing drying is adopted in the traditional filtering process, the time efficiency is improved by half, the water content of a mud cake is improved to be lower than 15%, and the requirement of direct material proportioning in sintering is met.

Example 2:

on the basis of the above embodiments, in this embodiment, although the original device for opening the filter plates can open the filter plates one by one, it is not suitable to do so after adding the membrane filter plates 2, and the cross beam 5 is provided with a groove in which a new membrane pulling device for opening the filter plates is arranged.

Example 3:

on the basis of the above embodiment, in this embodiment, the film drawing device includes a slide column 10 fixedly disposed in the groove of the cross beam 5, a crescent-shaped block 11 is slidably disposed on the slide column 10, the block 11 extends out of the groove of the cross beam 5 and is connected with a driving lug 14 on the side wall of the filter plate 3, a steel cable 13 is disposed between every two blocks 11 for connection, the steel cable 13 on the block 11 near one end of the thrust plate 1 is fixedly disposed on the thrust plate 1, and the steel cable 13 at the other end is fixedly disposed on the pressing plate 6. In the embodiment, a crescent-shaped block 1 is used for blocking the driving lug 14 of the filter plate, when the hydraulic telescopic rod drives the pressing plate 6 to press, the blocks 11 are driven to be polymerized together, and similarly, when the pressing plate 6 is opened, the blocks are gradually opened within a limited distance from one side of the pressing plate 6 instead of being opened to the maximum limit like the original blocks, so that each diaphragm filter plate 2 is connected with a pipeline and must be limited within a certain range.

Example 4:

on the basis of the above embodiment, in the present embodiment, in order to make the opening sliding relatively easy, the roller 12 is adapted to the joint of the driving lug 14 and the cross beam 5, so as to reduce the friction by rolling instead of sliding.

Example 5:

on the basis of the above embodiment, in the present embodiment, the driving lug 14 is longer than the cross member 5 for the convenience of rolling.

Example 6:

on the basis of the above embodiment, in the present embodiment, the roller 12 is longer than the beam 5 for the convenience of rolling.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. A polypropylene high-pressure diaphragm automatic plate-pulling filter press comprises a thrust plate (1), filter plates (3), cross beams (5), a pressing plate (6), an oil cylinder (8) and a frame (9), wherein the frame (9) is fixedly provided with the two cross beams (5), the filter plates (3) are arranged between the two cross beams (5), two ends of each filter plate (3) are respectively provided with the thrust plate (1) and the pressing plate (6), one end of each pressing plate (6) is connected with a hydraulic telescopic rod, the hydraulic telescopic rods are connected with the oil cylinder (8), the oil cylinder (8) is arranged at the end of each cross beam (5), and the filter plates (3) are provided with filter cloth; the method is characterized in that: a diaphragm filter plate (2) matched with the two filter plates (3) is arranged between the two filter plates, the diaphragm filter plate (2) is hollow, a compression pipe (4) is arranged below the cross beam (5), and a pipeline is arranged on the compression pipe (4) and connected to each diaphragm filter plate (2).

2. The polypropylene high pressure membrane automatic plate-pulling filter press according to claim 1, wherein: a groove is formed in the cross beam (5), and a membrane pulling device for opening the filter plate is arranged in the groove.

3. The polypropylene high pressure membrane automatic plate-pulling filter press according to claim 2, wherein: the film drawing device comprises a sliding column (10) fixedly arranged in a groove of a cross beam (5), crescent-shaped check blocks (11) are arranged on the sliding column (10) in a sliding connection mode, the groove, extending out of the cross beam (5), of each check block (11) is connected with a driving lug (14) on the side wall of a filter plate (3), a steel rope (13) is arranged between every two check blocks (11) for connection, the steel rope (13) on the check block (11) close to one end of the thrust plate (1) is fixedly arranged on the thrust plate (1), and the steel rope (13) at the other end is fixedly arranged on a compression plate (6).

4. The polypropylene high pressure membrane automatic plate-pulling filter press according to claim 3, wherein: the joint of the driving lug (14) and the cross beam (5) is provided with a roller (12) in a switching way.

5. The polypropylene high pressure membrane automatic plate-pulling filter press according to claim 3, wherein: the length of the driving lug (14) exceeds that of the cross beam (5).

6. The polypropylene high pressure membrane automatic plate-pulling filter press according to claim 4, wherein: the length of the roller (12) exceeds that of the cross beam (5).