CN206295648U - Plate and frame filter press for lifting Aqueous Solutions of Polyethylene Glycol filter quality - Google Patents

Abstract

The utility model is related to a kind of plate and frame filter press for lifting Aqueous Solutions of Polyethylene Glycol filter quality, including base, girder, thrust block and compact heap, and multiple filter plates are provided with the girder between thrust block and compact heap；Towards screw mandrel and cylinder block is arranged with, the cylinder block is arranged on screw mandrel, and working cylinder is provided with the cylinder block, and the lower end of the working cylinder push rod is provided with double-rod cleaning device for each filter plate top.Make its internal jet pipe when high-pressure spray wash operation is carried out by polywater cover, having all the time in polywater cover so as to it can incorporate the current of polywater cover by the silt that High-Pressure Water is rinsed in, can improve the cleaning quality to filter cloth full of water.

Description

Plate and frame filter press for improving the filtration quality of polyethylene glycol aqueous solution

technical field

The utility model relates to a plate and frame filter press for improving the filtration quality of polyethylene glycol aqueous solution.

Background technique

The process of human modernization continues to accelerate, and non-renewable resources such as coal and oil are also being exhausted day by day. As a new energy source, solar energy has been strongly supported by governments of various countries. The solar photovoltaic industry has developed rapidly, and its related industries have also risen rapidly.

During the cutting process of solar silicon wafers, a lot of waste silicon mud is produced, mainly including silicon carbide and polyethylene glycol cutting fluid, so it can be processed again. During the recycling process, the waste silicon mud needs to be melted first. Then after centrifugation, the centrifuged liquid is filtered through a filter press to obtain a high-concentration polyethylene glycol aqueous solution; in the past, the filter press was relatively simple to wash the filter cloth after the press was completed, and sprayed water through a high-pressure nozzle to directly When washing the filter cloth, because the fine sediment particles are directly embedded in the filter holes, high-pressure spray washing can only target the sediment on the surface of the filter cloth, and it is difficult to use high-pressure washing for the embedded sediment inside. Clean up; even if the sediment embedded in the filter hole is washed out, it will be washed to other places in the filter cloth, and it is difficult to be washed down. The unwashed sediment will continue to be used in the next filter, affecting the overall filter cloth. The filter quality and efficiency of the machine.

Utility model content

The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and provide a plate and frame filter press for improving the filtration quality of polyethylene glycol aqueous solution.

The technical solution adopted by the utility model to solve the technical problem is: a plate and frame filter press for improving the filtration quality of polyethylene glycol aqueous solution, including a base, a main beam, a thrust block and a compression block, and a thrust block Multiple filter plates are arranged on the main beam between the compacting block and the compacting block;

Each filter plate is provided with a screw rod and a cylinder base facing down, the cylinder base is arranged on the screw rod, a working cylinder is arranged on the cylinder base, and a double-rod cleaning device is arranged at the lower end of the push rod of the working cylinder.

Further, the double-rod cleaning device includes a mounting seat, side plates are respectively arranged on both sides of the mounting seat, water collecting covers are respectively provided on the inner side under the two side plates, the openings of the two water collecting covers are arranged oppositely, and the two collecting The movement area of the filter plate is formed between the water covers; the nozzle pipe is arranged in the water collection cover, and the nozzle pipe is arranged horizontally in the water collection cover, the nozzle hole of the nozzle faces the opening of the water collection cover, and the inlet of the nozzle The water supply system is connected.

Further, the inlet of the nozzle is connected to the outlet of the electronic three-way valve, the first inlet of the electronic three-way valve is connected to the water supply system, and the second inlet of the electronic three-way valve is connected to the air supply system.

Further, the water collecting cover has a rectangular structure, and rubber scrapers are arranged around the opening of the water collecting cover.

The beneficial effects of the utility model are: relying on the water-collecting cover to make the internal spray pipes perform high-pressure spray washing operations, the water-collecting cover will always be filled with water, so that the sediment washed by the high-pressure water flow can be integrated into the water-collecting cover. In the water flow, the cleaning quality of the filter cloth is improved.

When the water collection cover moves from top to bottom, the water in the water collection cover will flow down when it is full, and the water flow can wash the sediment on the filter cloth in advance, playing the role of pre-cleaning.

The role of the rubber scraper can scrape off the large pieces of sand on the surface of the filter cloth, thereby reducing the pressure of high-pressure washing of the sand. Secondly, the rubber scraper is soft, which can reduce the impact on the filter cloth when scraping the sand on the filter cloth. Cloth damage.

Adopting the filter press of the utility model, relying on the double-rod cleaning device, the sediment particles on the filter cloth can be cleaned particularly clean, so that when filtering the polyethylene glycol aqueous solution, the filtration efficiency is higher and the filtration quality is better. excellent.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is the schematic diagram of filter press of the present utility model;

Fig. 2 is the schematic diagram of double rod cleaning device;

Fig. 3 is the schematic diagram of nozzle;

Among them, 1. Thrust block, 2. Compression block, 3. Filter plate, 4. Working cylinder, 5. Mounting seat, 6. Side plate, 7. Double-rod cleaning device, 71. Water collecting cover, 72. Spray Pipe, 73, rubber scraper, 74, electronic three-way valve.

detailed description

The utility model is described further in conjunction with accompanying drawing now. These drawings are simplified schematic diagrams only to illustrate the basic structure of the utility model in a schematic way, so they only show the configurations related to the utility model.

As shown in Figures 1 to 3, a plate and frame filter press for improving the filtration quality of polyethylene glycol aqueous solution includes a base, a main beam, a thrust block 1 and a compression block 2, and the thrust block 1 and the compression block A plurality of filter plates 3 are arranged on the main beam between the tight blocks 2; screw rods and cylinder seats are arranged on the top of each filter plate 3, the cylinder seats are arranged on the screw rods, and the cylinder seats are provided with working cylinders 4 for working The lower end of the cylinder 4 push rod is provided with a double-rod cleaning device 7 .

The double-rod cleaning device 7 includes a mounting seat 5, the two sides of the mounting seat 5 are respectively provided with side plates 6, and the inner sides below the two side plates 6 are respectively provided with water collecting covers 71, and the openings of the two water collecting covers 71 are arranged oppositely. The movement area of the filter plate 3 is formed between the water collecting cover 71; the nozzle pipe 72 is arranged in the water collecting cover 71, and the nozzle pipe 72 is horizontally arranged in the water collecting cover 71, and the nozzle hole of the nozzle pipe 72 faces the opening of the water collecting cover 71 , the inlet water supply system of nozzle pipe 72 is connected.

In order to realize spraying high-pressure airflow from the nozzle 72 to dry the filter cloth, the inlet of the nozzle 72 is connected to the outlet of the electronic three-way valve 74, and the first inlet of the electronic three-way valve 74 is connected to the water supply system. The second inlet of 74 communicates with the air supply system, and the control system of the filter press controls the switching between the two inlets of the electronic three-way valve 74 .

The water collection cover 71 has a rectangular structure, and rubber scrapers 73 are arranged around the opening of the water collection cover 71 . The length of water collecting cover 71 adapts to the width of filter cloth, adopts sheet metal welding to make, and the whole is a rectangular cover, is fixed on the lower end of side plate 6.

The control system respectively controls the rotation of the screw, the up and down movement of the working cylinder 4, the switching of the electronic three-way valve 74 and the movement of the pull plate on the filter press. During operation, the pull plate pulls the cleaned filter plate 3 to move to the double rod Below the cleaning device 7, the push rod of the working cylinder 4 goes down, and the filter plate 3 is clamped by two water collecting covers 71, and the filter cloth is located on the surface of the filter plate 3. It is equivalent to forming a rectangular water cavity. The water flow of the nozzle 72 sprays the filter cloth with high pressure, and the sediment is washed out and merged into the water flow in the water collection cover 71. After the water in the water collection cover 71 is full, it will overflow. The water will wash the silt under the filter cloth to reduce the pressure of the spraying operation. The water collecting cover 71 moves from the top to the bottom, and the rubber scraper 73 also scrapes from the top to the bottom to remove large particles of mud. The rubber scraper 73 The operation can also achieve flexible contact with the filter cloth to prevent the filter cloth from being scratched.

After the water spray cleaning is completed, the control system controls the switching of the electronic three-way valve to spray high-pressure air from the nozzle to spray the filter cloth and further clean the filter cloth.

Adopting the filter press of the present utility model, relying on the double-rod cleaning device 7, the silt particles on the filter cloth can be cleaned particularly clean, so that when filtering the polyethylene glycol aqueous solution, the filtration efficiency can be higher and the filtration quality can be improved. better.

Inspired by the above-mentioned ideal embodiment according to the utility model, and through the above-mentioned description content, relevant staff can completely make various changes and modifications within the scope of not deviating from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, but must be determined according to the scope of the claims.

Claims (4)

1. a kind of plate and frame filter press for lifting Aqueous Solutions of Polyethylene Glycol filter quality, it is characterized in that, including base, girder, Thrust block（1）And compact heap（2）, thrust block（1）And compact heap（2）Between girder on be provided with multiple filter plates（3）；

Each filter plate（3）Towards screw mandrel and cylinder block is arranged with, the cylinder block is arranged on screw mandrel, is set on the cylinder block for top It is equipped with working cylinder（4）, the working cylinder（4）The lower end of push rod is provided with double-rod cleaning device（7）.

2. the plate and frame filter press for lifting Aqueous Solutions of Polyethylene Glycol filter quality according to claim 1, it is characterized in that, Described double-rod cleaning device（7）Including mounting seat（5）, mounting seat（5）Both sides be respectively arranged with side plate（6）, biside plate（6） Polywater cover is respectively arranged with the inside of lower section（71）, two polywater covers（71）Opening be oppositely arranged, two polywater covers（71）Between Form filter plate（3）Moving region；The polywater cover（71）Inside it is provided with jet pipe（72）, the jet pipe（72）It is horizontally installed on poly- Water cover（71）It is interior, jet pipe（72）Spray orifice towards polywater cover（71）Opening, jet pipe（72）Import water system connection.

3. the plate and frame filter press for lifting Aqueous Solutions of Polyethylene Glycol filter quality according to claim 2, it is characterized in that, The jet pipe（72）Import connection electronic three-way valve（74）Outlet connection, electronic three-way valve（74）The first import with supply water System connectivity, electronic three-way valve（74）The second import connected with air supply system.

4. the plate and frame filter press for lifting Aqueous Solutions of Polyethylene Glycol filter quality according to claim 2, it is characterized in that, The polywater cover（71）It is cuboid structure, the polywater cover（71）The end edge surrounding of opening is respectively arranged with rubber scraping article （73）.