KR100598675B1 - Filter media cleaner for filter press - Google Patents

Abstract

The present invention relates to a filter cloth cleaner and a filter press for removing the cake residue from the filter cloth and the filter cloth surrounding the copper filter plate of the novel configuration, and more particularly, the filter cake wrapped in the filter cloth at the time of disintegrating the filter press of the compression filter dehydrator It relates to a filter cloth cleaning technique for removing the filter cloth clogging phenomenon in the peeling and subsequent process.

According to one embodiment of the present invention, when disassembling the filter plate of the filter press, the position of the filter plate is calculated and adjusted so that one or several filter plates stay in the working area of the filter cloth cleaner equipped with the compressed air spraying facility, and the filter cloth It is characterized in that the flow of compressed air injected from the cleaner acts in the order of filter cloth, filter cake in the filter plate body.

Filter press, filter plate, filter cloth, compressed air, automatic opening and closing, positioner, sludge, cake, peeling, cleaning

Description

Filter press filter plate and filter cloth cleaner for cleaning the filter cloth of the filter plate and a filter press comprising the same {filter media cleaner for filter press}

1 is an exemplary view of a filter press equipped with a filter cloth cleaner according to an embodiment of the present invention.

Figure 2 is an assembled state of the filter plate wrapped in the automatic opening and closing filter cloth extracted in Figure 1;

3 is a block diagram of the opening and closing parts of the automatic opening and closing filter cloth shown in FIG.

4 is a front view of the filter cloth cleaner shown in FIG.

<Description of the symbols for the main parts of the drawings>

1: filter cloth cleaner 2: compressed air inlet

3: compressed air hose 4: manifold

5: Nozzle 6: Solenoid Valve

7: positioner 8: filter cloth opening

9: filter press 10: hook

11: filter plate body 12: filter cloth

13: connecting rod fixing hole 14: # 1 automatic opening and closing hinge

15: Filter plate fixing hole 16: # 2 automatic opening and closing hinge

17: slip screw 18: hinge connecting rod

19: Connecting piece 20: Side tie string

22: frame

The present invention relates to a filter cloth cleaning technique for removing the filter cake wrapped in the filter cloth during the filter plate disassembly of the filter press, which is a compression filtration dehydrator, and removing the filter cloth clogging phenomenon in the subsequent process.

Filter presses for removing moisture by compressing solids after solid-liquid separation using a filter cloth from a suspension have been used in all industries such as food, chemical, civil engineering, construction, and environment. In the near future, as the sludge generated from the wastewater treatment process became impossible to dump and landfill, solid-liquid separation and dewatering had a direct impact on the operating cost of the wastewater treatment plant.

On the other hand, the slurry viscosity in the dehydration process to increase the specific resistance of the filtration to increase the time required for dehydration as well as to require a higher pressing pressure.

In addition, during the disintegration of the filter plate after dehydration, the sludge cake formed between the adjacent filter cloth and the filter cloth is impossible to drop due to gravity due to adhesion due to viscosity, so that scraping by manual or automated equipment is achieved but is not easily removed. The pressure applied between the scraper and the filter cloth blocks the eye of the filter cloth, making the filtration of the next process very difficult.

In order to solve this problem, pressure water or vibration technology may be applied, but in the case of microbial digested sludge, the viscosity is 3,000 cps, which is not very effective.

The present invention has been researched and developed in order to solve the conventional problems as described above, the main object is to easily peel off the adhesive cake (sludge) from the filter cloth to facilitate the discharge and incidentally clogging the filter cloth for the next process It is to eliminate the phenomenon.

In addition, the present invention, while applying instantaneous impact to the filter cloth to which the sludge is stuck gives a strong throttle vibration as a whole, and the compressed air is moved from the rear of the filter cloth to the front to prevent clogging of the filter cloth and conventional pressure Another purpose is to solve the problems such as damage to the filter cloth caused by the use of water, such as tipping.

The present invention for achieving the above technical problem and object is that the dewatering cake inside the filter chamber formed by the plurality of filter plates during the filter plate disintegration of the filter press to fall smoothly by gravity-(particularly in the case of high viscosity sludge, Since the dewatering cake is not peeled off at all or partially peeled), the compressed air of about 10kg / ㎠ is sprayed with a nozzle to give a strong throttle vibration to the entire filter cloth, and the filter can remove the clogging of the filter cloth. A filter cloth cleaner for a press.

In order to achieve this object, the present inventors 1) when one or several filter plates are moved to reach the installation position of the filter cloth cleaner without distinguishing the upper hook or the side hook in the transfer technology of the filter plate. The filter plate was automatically stopped by the positioner to wait for the designated time. In other words, we developed moving space and time control technology.

In addition, the present inventors have developed an automatic opening / closing opening of the filter cloth which can be used semi-permanently in a poor operating environment such as dust or water without using power by combining gravity-type automatic opening and closing using an eccentricity and an operation tool (hinge) related thereto. It was.

In addition, the present inventors in the filter plate for a conventional filter press consisting of the filter plate body and the filter cloth surrounding it, by forming a contact separation means to open between them at the end of the contact surface of the filter plate body and the filter cloth when dismantling the filter plate. A filter press filter plate was developed to allow compressed air to be injected and injected into the space between the filter plate body and the filter cloth spread by the contact separating means. (Claim 1)

Here, the contact separating means is, for example, as described in claim 2, A) a connecting piece having a stopper fixed to each of the upper end of both sides of the filter plate main body of the normal structure in which the slurry supply hole is opened at the center or one side of the surface; The connecting ring is installed at the upper end of the filter cloth of the filter, and C) the hinge connecting rod and longitudinal coupling to the connecting ring and D) one end is fixed to each of the connecting piece and the hinge connecting rod, respectively, slip screw is used to fix the connecting piece When dismantling the filter plate of the press may be configured to include an automatic opening and closing hinge of the shape eccentric so that the top inlet (filter opening and closing port) of the filter cloth is automatically opened by the eccentric.

Hereinafter, a filter plate and a filter cloth cleaner and a filter press including the same according to a preferred embodiment of the present invention will be described with reference to the drawings.

1 is a schematic view showing a schematic configuration of a filter press installed with a filter cloth cleaner according to an embodiment of the present invention, Figure 2 is a perspective view showing an extract of one filter plate wrapped with a filter cloth in Figure 1, Figure 3 2 is a block diagram illustrating the automatic opening and closing, and FIG. 4 is a front view according to an embodiment of the filter cloth cleaner extracted from FIG. 1.

As shown in the drawing, the filter press filter cloth cleaner 1 according to an embodiment of the present invention is provided with a frame 22 so that it can be mounted on a conventional filter press 9.

In addition, the compressed air distribution manifold (4) is provided in the frame (22) so that the compressed air acts on the front surface of the filter cloth (12) from the compressed air hose (3) connected to the compressed air inlet (2). It is connected to (3).

In addition, at the end of the manifold 4, a total of four nozzles 5 are provided, two in each direction in two directions. In actual applications, the number of nozzles used may be more or less.

In addition, as a moving means of the filter plate wrapped around the filter plate body 11 having a conventional structure by the filter cloth 12, a side hook for dragging both sides of the filter plate or an overhead hook for dragging the upper surface thereof. ) Can be used for all of these, the inventors have already received a utility model registration and is also mounted on the actual product. (Registration Utility Model No. 34068 and many others, owner: Kim Ki-tae)

The filter plate of the present embodiment, which is moved by one or several sheets by such moving means, comes into contact with the positioner 7, and one or more filter plates are compressed by an electrical signal from the positioner 7. You will be waiting for the best spot to clean with air. In this state, as the solenoid valve 6 is opened at an appropriate time interval, the inlet, that is, the filter cloth opening and closing opening 8, which is automatically opened by the eccentricity of the automatic opening and closing hinges 14 and 16 mounted on the filter plate body having a normal structure. High pressure compressed air is injected into the space between the filter plate body 11 and the filter cloth 12.

Here, as the positioner, both a non-contact sensor / switch such as a proximity switch or a touch sensor / switch such as a limit switch may be employed, and these sensors / switches may be connected to a processing device such as a PC for signal processing. .

Therefore, the filter cloth cleaner 1 of the present embodiment configured as described above is optimally applicable to solid-liquid separation and dehydration of a highly viscous microbial treatment sludge or a polymerization reaction process result of the production process.

In Figure 2, the filter plate main body 11 of a conventional structure formed of rubber or polypropylene (PP: Polypropylene) is wrapped with a filter cloth 12, the upper end of the filter cloth is connected to the hinge connecting rod (18) ( 10) is sewn, the hole in the center of the surface of the filter cloth or any one side is possible to supply the slurry.

In addition, the connecting ring 10 may be in the form of sewing by rolling the top of the filter cloth in a circular shape, as shown in Figure 2, it may be in the form of sewing by rolling a circular length only at both ends of the top of the filter cloth, binding the metal ring to the top of the filter cloth It may be in the form laid.

FIG. 3 shows the detailed working principle and the related component diagram for the filter cloth opening 8 of FIG. 2.

As shown in the figure, the left and right sides of the filter plate main body 11, the # 1 auto-opening hinge 14 and the # 2 auto-opening hinge 16, which are folded outwards due to the eccentric shape, respectively, form the filter plate fixing hole 15. It is assembled through, in particular, is assembled by a slip screw 17 without a spiral to be easily flipped outward. At this time, the operating range of the automatic opening and closing hinge is assembled to the connecting piece 19 installed on both upper ends of the filter plate body so as to be limited by the side stopper.

In addition, the filter cloth 12 surrounding the front and rear of the filter plate main body 11 has a plurality of side tie strings 20 are sewn, inducing the collective opening and closing of the filter cloth opening and closing port 8 in the upper connection ring 10 The hinge connecting rod 18 is fitted, and the automatic opening and closing hinges 14 and 16 are fixed to the side of the hinge connecting rod 18 through the connecting rod fixing hole 13.

Here, the filter cloth can be used as it is, even if the conventional one if the connecting ring is formed at both ends of the upper end, in some cases there may be no side tie strap or the number of use may be different.

In the frame 22 of FIG. 4, various devices and components related to cleaning the filter cloth using compressed air are assembled, and various specifications such as a frame shape such as a rectangle / circle or a height / thickness are determined according to the specification of the filter press. Can be adjusted appropriately.

As described in detail above, according to the filter press filter cloth cleaner according to the present invention, microbial treatment in a filter press capable of minimizing the water content in the sludge dehydrator at the point of preventing direct landfilling of various sludges and at the time of ocean dumping is prohibited. It is a useful invention that can simultaneously solve the cake peeling defect and the clogging of the filter cloth caused during the dewatering of the sludge.

In addition, the present invention does not need to use a separate pressure water (wash water) even in the case of high adhesion in solid-liquid separation and dehydration, which is essential in the production process of the food and chemical industries, so that secondary treatment load can be reduced and hygiene is improved. You can.

Claims (5)

In the filter plate for a normal filter press comprising a filter plate body and a filter cloth surrounding the filter plate body, At the end of the contact surface of the filter plate body and the filter cloth, contact separation means of the filter plate body and the filter cloth are formed so that compressed air is injected into the space between the filter plate body formed by the contact separation means and the filter cloth when the filter plate is disintegrated. Filter plate for filter press, characterized in that it can be. The method of claim 1, The contact separating means A connecting piece having stoppers fixed to both upper ends of the filter plate body, respectively; Connecting rings each formed at an upper end of the filter cloth; A hinge connecting rod coupled to the connecting ring in a longitudinal direction; And One end portion is fixed to each of the connecting piece and the hinge connecting piece, and a slip screw is used to fix the connecting piece so that the upper inlet (filter opening and closing port) of the filter cloth is automatically opened by the eccentric when dismantling the filter plate of the filter press. Self-opening hinge; Filter press filter plate characterized in that comprises a. In the filter press wherein the filter plate for filter press of claim 1 or 2 is used, A frame fixed to the filter press so that the filter plate is located on the side to be disintegrated; A positioner installed on the frame such that a stop position of the filter plate can be detected when the filter plate is disassembled and moved toward the frame; A compressed air hose installed on the frame so that compressed air can be injected toward the filter plate when the movement of the filter plate is stopped below the frame by the position detection of the positioner; A manifold installed at one end of the compressed air hose; A nozzle for blowing compressed air installed at the end of the manifold; Filter cloth cleaner composed of filter press. The method of claim 3, The filter cloth cleaner for the filter press Filter air filter cloth filter, characterized in that the compressed air is injected to the front and rear of the filter plate. A filter plate in which an opening at the top of the filter cloth is automatically opened by the eccentric when disintegrating the discharge of the sludge cake; A filter press in which a plurality of filter plates are installed; A frame fixed to the filter press so that the filter plate is located on the side where the filter plate is disintegrated; A positioner installed on a frame to detect a stop position of the filter plate; A compressed air hose installed on the frame so that compressed air can be injected toward the filter plate when the movement of the filter plate is stopped below the frame by the position detection of the positioner; A manifold installed at one end of the compressed air hose; And A nozzle installed at the end of the manifold; Filter press consisting of.

Images