CN212188027U - Security filter for filtering extension liquid - Google Patents

Abstract

The utility model discloses a safety filter for filtering extension liquid, which comprises a tank body, wherein the tank body comprises an upper tank body and a lower tank body, the upper tank body and the lower tank body are hermetically connected through bolts and nuts, the top of the upper tank body is provided with an exhaust pipe, the top of the lower tank body is provided with an upper baffle plate, the upper baffle plate is provided with a screw hole and a flow guide pipe hole, the upper baffle plate is provided with a filter through bolts, the lower part of the lower tank body is provided with a lower baffle plate, the lower baffle plate is provided with a plurality of through holes, the tank body between the lower baffle plate and the upper baffle plate is provided with a water inlet pipe and a water outlet pipe, the water outlet pipe is connected with a flow guide pipe in the tank body, the flow guide pipe passes through the upper baffle plate and is positioned above the upper baffle plate, the bottom of the lower tank body below, the pressure change in the security filter can be monitored in real time, and the security filter is convenient for workers to observe.

Description

Security filter for filtering extension liquid

Technical Field

The utility model relates to a security filter technical field specifically belongs to a security filter is used in extension liquid filtration.

Background

In the production process of the polarizer, operations such as swelling, dyeing, stretching and cleaning of a PVA raw material are required, in the processes, the PVA is treated by mainly using an aqueous solution containing chemical substances, and micromolecular PVA, dust, impurities and the like on the surface of a PVA film can enter the aqueous solution in the treatment process, so that pollutants are attached to the surface of the PVA film for subsequent treatment, and the yield of the polarizer of a final product is greatly reduced. Among them, the aqueous solution used in the stretching process is generally called as an extension solution, and the cleanliness of the extension solution directly affects the final quality of the polarizer, so that it is necessary to filter and purify the extension solution used for stretching the PVA film by using an adsorption resin to remove impurities such as small molecular PVA and dust.

The filtering and purifying of the dope is mainly to remove the small molecular PVA, dust, impurities and the like by the adsorption resin in the resin tank, but a very small amount of the adsorption resin in the resin tank inevitably leaks into the filtered and purified dope, and the filtered and purified dope is mixed with the adsorption resin impurities, so that the filtered and purified dope cannot be used, and therefore, a security filter is required to remove the leaked adsorption resin.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a security filter for extension liquid filtration has overcome prior art's not enough.

In order to solve the above problems, the utility model adopts the following technical proposal:

a safety filter for filtering extension liquid comprises a tank body, wherein the tank body comprises an upper tank body and a lower tank body, the upper tank body and the lower tank body are hermetically connected through bolts and nuts, the top of the upper tank body is provided with an exhaust pipe, the top of the lower tank body is provided with an upper clapboard which is provided with a screw hole and a guide pipe hole, the upper clapboard is provided with a filter through a bolt, the lower part of the lower tank body is provided with a lower clapboard, the lower clapboard is provided with a plurality of through holes, the tank body between the lower clapboard and the upper clapboard is provided with a water inlet pipe and a water outlet pipe, the water outlet pipe is connected with a flow guide pipe in the tank body, the flow guide pipe penetrates through the upper partition plate and is positioned above the upper partition plate, the bottom of the lower tank body below the lower partition plate is also provided with a drain outlet, the drain outlet is connected with a drain pipe, and the drain pipe and the exhaust pipe are provided with stop valves.

Further, the top of the upper tank body is also provided with a standby exhaust pipe, and a pressure gauge is installed on the standby exhaust pipe.

Furthermore, the upper clapboard is in a ring shape.

Furthermore, the water outlet pipe is connected with a liquid outlet pipe, and the water inlet pipe is connected with a liquid inlet pipe.

Further, the filter is a wedge-shaped filter.

Compared with the prior art, the utility model discloses an implement the effect as follows: this cartridge filter can effectually clear away the absorbent resin in the extension liquid, and the lower baffle has the function that prevents that sedimentary absorbent resin from being sneaked into the extension liquid again, avoids blockking up a large amount of absorbent resin on the filter, and the sedimentary absorbent resin in the security filter bottom can be followed the blow off pipe and emitted, and this cartridge filter can effectually clear away the absorbent resin in the extension liquid, and installs the manometer on this cartridge filter, but the pressure variation in the real-time supervision cartridge filter, and the staff of being convenient for observes.

Drawings

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

Fig. 2 is a cross-sectional view of the inside of the tank of the present invention.

Fig. 3 is a schematic structural view of the upper separator.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation to be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-3, an extension liquid filters and uses cartridge filter, which comprises a tank body, the jar body is including last jar body 2 and lower jar body 1, go up jar body 2 and lower jar body 1 through bolt 32 and nut 31 sealing connection, be equipped with on the last jar body 2 and connect outer edge 20, be equipped with down on the lower jar body 1 and connect outer edge 10, bolt and nut are installed and are connected outer edge 20 and down and connect outer edge 10 outward at last, with last jar body 2 and lower jar body 1 sealing connection, of course, in order to improve sealing performance, can connect outer edge 20 and connect down and install seal ring between the outer edge 10 additional at last connection.

The top of going up jar body 2 is equipped with blast pipe 21, installs stop valve 4 on the blast pipe 21, and the top of jar body 1 down is equipped with baffle 6, goes up baffle 6 and is the ring shape, goes up baffle 6 and can weld the top of jar body 1 down, perhaps as an organic whole structure with jar body 1 down. The upper partition plate 6 is provided with screw holes 62 and a guide pipe hole 61, the filter 8 is installed in the upper partition plate 6, the filter 8 is a wedge-shaped filter, and the filter 8 is fixed on the upper partition plate 6 through the bolts 32 and the screw holes 62. Lower portion of jar body 1 is equipped with baffle 5 down, be equipped with a plurality of through-hole 51 on the baffle 5 down, be equipped with inlet tube 11 and outlet pipe 13 on the jar body between baffle 5 and the last baffle 6 down, be connected with drain pipe 14 on the outlet pipe 13, be connected with feed liquor pipe 12 on the inlet tube 11, all be connected through the flange and use bolt 32 and nut 31 between outlet pipe 13 and drain pipe 14 and inlet tube 11 and the feed liquor pipe 12, outlet pipe 13 is connected with honeycomb duct 7 at jar internal connection, honeycomb duct 7 passes baffle 6 and is located baffle 6 top on, honeycomb duct 7 can weld with the junction of last baffle 6, in order to realize the sealed of space between baffle 6 and the honeycomb duct 7. The top of the lower tank body 1 is sealed by the upper partition plate 6, the flow guide pipe 7 and the filter 8, so that extension liquid flowing into the water inlet pipe 11 from the liquid inlet pipe 12 and entering the cartridge filter 8 cannot enter the upper tank body 2 from a gap between the upper partition plate 6 and the flow guide pipe 7 and the filter 8, the extension liquid entering the lower tank body 1 can enter the upper tank body 2 after being thoroughly filtered, then enters the water outlet pipe 13 from the flow guide pipe 7 and then flows out from the liquid outlet pipe 14.

The bottom of the lower tank body 1 below the lower partition plate 5 is also provided with a sewage draining outlet, a sewage draining pipe 3 is connected to the sewage draining outlet, and a stop valve 4 is installed on the sewage draining pipe 3. The lower partition plate 5 is positioned below the liquid inlet pipe 12, extension liquid entering the security filter 8 from the liquid inlet pipe 12 and leaked adsorption resin firstly enter a space formed by the lower partition plate 5, the upper partition plate 6 and the filter 8, the leaked adsorption resin can be settled due to the stable flow rate of the extension liquid during filtering, and enters the lower tank body 1 below the lower partition plate 5 from the through hole 51 on the lower partition plate 5, and the extension liquid entering the lower tank body 1 cannot impact the adsorption resin settled below the lower partition plate 5 under the isolation effect of the lower partition plate 5, so that part of the adsorption resin can be accumulated below the lower partition plate 5, a large amount of adsorption resin is prevented from being blocked on the filter 8, the filter 8 is prevented from being blocked early, and the filtering effect is reduced. In addition, the adsorption resin deposited below the lower partition plate 5 can be discharged through the sewage discharge pipe 3, so that the cartridge filter 8 can be cleaned conveniently.

In addition, the top of the upper tank body 2 is also provided with a standby exhaust pipe 22, the standby exhaust pipe 22 is also provided with a stop valve 4, and the standby exhaust pipe can also be provided with a pressure gauge 15, so that a worker can visually know the pressure change in the security filter 8 conveniently.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides an extension liquid filters uses cartridge filter, includes a jar body, jar body including last jar body and lower jar body, last jar body and lower jar body pass through bolt and nut sealing connection, its characterized in that: the top of last jar of body be equipped with the blast pipe, the top of the lower jar of body be equipped with the baffle, last baffle on be equipped with screw hole and water conservancy diversion tube hole, last baffle on install the filter through the bolt, the lower part of the lower jar of body be equipped with down the baffle, lower baffle on be equipped with a plurality of through-hole, lower baffle and last baffle between the jar body on be equipped with inlet tube and outlet pipe, the outlet pipe at a jar internal connection and have the honeycomb duct, the honeycomb duct pass the baffle and be located the baffle top, the lower bottom of the lower jar of body of baffle below still be equipped with the drain, the drain on be connected with the blow off pipe, blow off pipe and blast pipe on all install the stop valve.

2. The cartridge filter for filtering extension liquid according to claim 1, wherein: the top of the upper tank body is also provided with a standby exhaust pipe, and the standby exhaust pipe is provided with a pressure gauge.

3. The cartridge filter for filtering extension liquid according to claim 1, wherein: the upper baffle plate is circular.

4. The cartridge filter for filtering extension liquid according to claim 1, wherein: the water outlet pipe is connected with a liquid outlet pipe, and the water inlet pipe is connected with a liquid inlet pipe.

5. The cartridge filter for filtering extension liquid according to claim 1, wherein: the filter is a wedge-shaped filter.

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