CN210495328U - PVB liquid material filter equipment - Google Patents

Abstract

The utility model discloses a PVB liquid material filter equipment, this filter equipment includes the edulcoration jar, mix the liquid collecting tank, utilize the edulcoration jar and mix the liquid collecting tank cooperation and use, PVB liquid material in the edulcoration jar mixes the liquid pipe joint with mixed liquid through first row and the mixed liquid pipe of second transfer line emits into mixed liquid collecting tank under the effect of second flow pump, under the effect of first flow pump, the mixed liquid in the mixed liquid collecting tank emits into the edulcoration jar again through first row mixed liquid pipe joint and second transfer line, reduce miscellaneous liquid concentration, reach the purpose of clearing up the remaining miscellaneous liquid of edulcoration jar.

Description

PVB liquid material filter equipment

Technical Field

The disclosure relates to a filtering process in a PVB production process, and particularly discloses a PVB liquid material filtering device.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The PVB resin, which is named polyvinyl butyral in the chinese name, is obtained by adding butyraldehyde and a catalyst into polyvinyl alcohol, performing an acetalization reaction at a specific temperature, washing with water, and performing centrifugal drying, wherein the catalyst usually adopts hydrochloric acid, sulfuric acid and the like, a PVB liquid material commonly mentioned in a PVB production process refers to a polyvinyl alcohol aqueous solution, and the content of impurities in the PVB liquid material affects the purity of the PVB resin obtained by a subsequent acetalization reaction, so that the PVB liquid material needs to be filtered in the prior art to obtain relatively pure PVB resin.

The prior art filtration methods for PVB fluid are generally classified into two types:

the first kind increases physical structures such as filter screen in filter equipment to add quantitative PVB liquid material to filter equipment, filter equipment generally adopts and joins in marriage the liquid jar body, washing kettle etc. and has the current device, adsorbs the impurity in the PVB liquid material through the filter screen, but its has following problem: on one hand, the polyvinyl alcohol for industrial application is a carcinogen, impurities in the PVB liquid material are adsorbed by adopting a physical structure and are easy to adhere to the polyvinyl alcohol, and staff in a subsequent production workshop can easily contact the polyvinyl alcohol when replacing a filter screen and the like, so that the human body is damaged;

secondly, a certain amount of impurity removing agent and a certain amount of PVB liquid material are added into a filtering device, the impurity removing agent causes the layering phenomenon in the filtering device, the impurity liquid is distributed on the upper layer of the solution, the purer PVB liquid material is distributed on the lower layer of the solution, and the junction of the impurity liquid and the PVB liquid material is a mixed layer formed by mixing the PVB liquid material and the impurity liquid, the prior art generally selects to directly discharge the purer PVB liquid material on the lower layer and then discharge the mixed layer and the impurity liquid, and in order to ensure the purity of the PVB liquid material, an outlet pipe valve of the PVB liquid material is generally closed in advance, namely, when more PVB liquid material is contained in the mixed liquid and discharged together with the impurity liquid, the impurity liquid is discharged after the mixed liquid is discharged on the upper layer of the layering layer, the impurity liquid causes the residual of the PVB liquid in the filtering device, the residual impurity liquid is actually mixed when the PVB liquid material is filtered by the filtering device, the residual impurity liquid is also mixed in practice, thus, the purity of the PVB, the discharged redundant mixed liquid can also waste the polyvinyl alcohol raw material, and the water is used for washing the inner wall of the tank body to remove impurity-removing liquid, so that not only can water be wasted, but also the processing burden of the part of water can be increased, and if the processing is unreasonable, the environment can be possibly damaged by the residual polyvinyl alcohol in the impurity-removing liquid.

The inventor regards to the not enough of prior art, thinks that the layer of mixing of PVB liquid material and miscellaneous liquid has more PVB liquid material, if this partial mixed liquid of rational utilization, then the interior residue of getting rid of filter equipment that can be better, can avoid the waste of polyvinyl alcohol raw materials in the PVB liquid material again.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve above-mentioned problem, provide a PVB liquid material filter equipment, this filter equipment utilizes to collect and obtains the mixed liquid of PVB liquid material and miscellaneous liquid and clear away the mixed liquid of comparatively pure PVB liquid material that mixed liquid extracted in to filter equipment, has avoided the waste of polyvinyl alcohol raw materials in the PVB liquid material.

In order to achieve the purpose, the following technical scheme is adopted in the disclosure:

the utility model provides a PVB liquid material filter equipment, including the edulcoration jar, mix the liquid collecting tank, edulcoration jar body upper end central point puts fixed mounting gear motor, edulcoration jar inside has the (mixing) shaft, gear motor output shaft passes the edulcoration jar body and (mixing) shaft fixed connection, gear motor is equipped with the feeding pipe joint all around on the edulcoration jar body, the water inlet pipe connects, edulcoration agent coupling and first backflow union coupling, edulcoration jar body lower extreme central point fixed mounting first row of mixed liquid union coupling, row's mixed liquid union coupling and row's miscellaneous liquid union coupling, mix liquid collecting tank upper end fixed mounting second row of mixed liquid union coupling and second backflow union coupling, first backflow union coupling and second row of mixed liquid union coupling pass through first transfer line and are connected, second backflow union coupling and first row of mixed liquid union coupling pass through the second transfer line and are connected, first transfer line and second transfer line, And a liquid suction pipe is arranged in the mixed liquid collecting tank of the second flow pump, the liquid suction pipe is fixedly connected with the joint of the second row mixed liquid pipe, and the first flow pump and the second flow pump are electrically connected with a power supply.

Preferably, the pipette extends downwards to be connected with the inner wall of the mixed liquid collecting tank body, and a plurality of pipette holes are formed in the pipe wall of the pipette, which is close to one side of the mixed liquid collecting tank body.

Preferably, the middle position of the side wall of the impurity removing tank body is provided with a temperature sensor interface.

Preferably, a liquid discharge pipe joint is fixed at the lower end of the mixed liquid collecting tank body.

Preferably, the central axis of the drainage nipple is parallel to and offset from the centerline axis of the pipette.

Preferably, the filter device further comprises a controller electrically connected to the first and second flow pumps.

This disclose for reducing staff's work burden, the level sensor interface has all been seted up to lower extreme on the edulcoration jar side wall, installation floater formula level sensor in the level sensor interface, and the controller is connected with the level sensor electricity, and level sensor sends a signal for the controller, and the flow pump is opened to the controller, collects mixed liquid and edulcoration jar miscellaneous liquid edulcoration for mixing the liquid collecting tank and provides automatic control.

Compared with the prior art, the beneficial effect of this disclosure is:

1. the mixed liquid in the mixed liquid collecting tank is discharged into the mixed liquid collecting tank through a first row of mixed liquid pipe joints and a second liquid conveying pipe under the action of a second flow pump, and the mixed liquid in the mixed liquid collecting tank is discharged into the impurity removing tank again through the first row of mixed liquid pipe joints and the second liquid conveying pipe under the action of the first flow pump, so that the residual impurity liquid in the impurity removing tank is cleaned, and the concentration of the impurity liquid is reduced;

2. according to the method, the mixed liquor collected by the mixed liquor collecting tank can be discharged into the impurity removing tank again to separate the impurity liquid from the mixed liquor, and the PVB liquid material in the mixed liquor is continuously obtained, so that the waste of the PVB liquid material is avoided;

3. according to the method, the impurity removing tank and the mixed liquid collecting tank are matched for use, the mixed liquid in the mixed liquid collecting tank is used for cleaning the residual impurity liquid in the impurity removing tank, and the use of water is reduced as much as possible;

4. comparatively pure PVB liquid material and miscellaneous liquid in the edulcoration jar in this disclosure are discharged through row PVB liquid material coupling and row miscellaneous liquid coupling respectively, avoid the PVB liquid material of secondary discharge to be polluted by miscellaneous liquid.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is a top view of a filtration device of the present disclosure;

FIG. 2 is a bottom view of the filter assembly of the present disclosure;

FIG. 3 is a schematic structural view of a trash can of the present disclosure;

FIG. 4 is a schematic structural view of a mixed liquor collection tank of the present disclosure;

FIG. 5 is an enlarged view of area A of FIG. 4;

fig. 6 is a piping layout of the present disclosure.

Wherein: 1. the device comprises an impurity removal tank, 11, a feed pipe joint, 12, a water inlet pipe joint, 13, an impurity removal agent pipe joint, 14, a first return pipe joint, 15, a first row of mixed liquid pipe joints, 16, a PVB liquid material pipe joint, 17, an impurity removal liquid pipe joint, 18, a liquid level sensor interface, 19 and a temperature sensor interface;

2. a mixed liquid collecting tank 21, a second row mixed liquid pipe joint 22, a second backflow pipe joint 23, a liquid discharge pipe joint 24, a liquid suction pipe 25 and a liquid suction hole;

3. the device comprises feet, 4, a speed reducing motor, 5, a first infusion tube, 6, a second infusion tube, 7, a first flow pump, 8 and a second flow pump.

The specific implementation mode is as follows:

the present disclosure is further described with reference to the following drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only relational terms determined for convenience in describing structural relationships of the parts or elements of the present disclosure, and do not refer to any parts or elements of the present disclosure, and are not to be construed as limiting the present disclosure.

In the present disclosure, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present disclosure can be determined on a case-by-case basis by persons skilled in the relevant art or technicians, and are not to be construed as limitations of the present disclosure.

This disclosure is to PVB liquid material mix layer between miscellaneous liquid and the purer PVB liquid material unable rational utilization and the edulcoration jar has miscellaneous liquid remaining technical problem after PVB liquid material filters in adopting the layering filtration technique, this disclosure utilizes this mixed liquid to remove miscellaneous liquid and remains, and reacquires comparatively purer PVB liquid material in the mixed liquid, reaches the concentration that reduces miscellaneous liquid in the edulcoration jar and avoids the unreasonable extravagant technical purpose of PVB liquid material.

Example 1:

as shown in fig. 1-5, the present disclosure is directed to a filtering process of PVB liquid in a PVB resin production process, and discloses a filtering apparatus for PVB liquid, where the PVB liquid is an aqueous solution of polyvinyl alcohol as a main raw material in PVB resin.

This disclosure includes two jar bodies that mutually support and use, installs the edulcoration jar 1 for being arranged in getting rid of PVB liquid material impurity at left jar body, and the jar body on right side is for being arranged in collecting the mixed liquid collecting tank 2 of the mixed liquid that produces in the storage edulcoration jar 1, and the lower extreme all is close the hemisphere on the shape of these two jar bodies, and middle part between the lower extreme is cylindrical on the jar body, and jar body lateral surface is laid and is kept warm cotton, and jar body lower extreme preferentially adopts three lower ground 3 to support, installs weighing module on every lower ground 3.

A plurality of pipe joints are arranged on the tank body of the impurity removal tank 1, wherein the pipe joints on the impurity removal tank 1 comprise a feed pipe joint 11, a water inlet pipe joint 12, an impurity removal agent pipe joint 13 and a first reflux pipe joint 14 which are positioned at the upper end of the tank body, and are respectively used for feeding PVB liquid material or PVB raw material needing impurity removal, dissolved polyvinyl alcohol or water for supplement, an impurity removal agent and PVB liquid material reflowing from the mixed liquid collection tank 2; the first mixed liquid discharge pipe joint 15, the PVB liquid discharge pipe joint 16 and the impurity discharge liquid pipe joint 17 are positioned at the lower end of the tank body of the impurity removal tank 1 and are respectively used for discharging mixed liquid, pure PVB liquid and pure impurity liquid; the liquid level sensor interface 18 and the temperature sensor interface 19 are positioned on the side wall of the tank body, other interfaces can be selectively arranged for other operations, the phenomenon that the pipe joint is not enough in other environments is avoided, and the unnecessary pipe joint is blocked by the blocking plate, the sealing ring and the clamp, wherein the temperature sensor arranged in the temperature sensor interface 19 adopts a digital display type temperature sensor, and whether the temperature is suitable or not when the temperature is directly read on the temperature sensor so as to be used for a worker to judge the stirring of liquid materials is judged.

Offer a plurality of couplings on the jar body of mixed liquid collecting tank 2, wherein, mix liquid collecting tank 2 upper end fixed mounting second and arrange mixed liquid coupling 21 and second backflow coupling 22, be used for respectively with in the mixed liquid collecting tank 2 comparatively pure PVB liquid material backward flow to edulcoration jar 1 in, be used for collecting the mixed liquid that arranges into in the mixed liquid collecting tank 2, mix liquid collecting tank 2 jar body lower extreme and be fixed with fluid-discharge tube joint 23, be used for discharging miscellaneous liquid or PVB liquid material, mix liquid collecting tank 2 internally mounted pipette 24, pipette intercommunication second backflow coupling 22, concrete can set up to, pipette 24 and mixed liquid collecting tank 2 jar internal portion fixed connection, pipette 24 lower extreme is seted up one row or multirow and is inhaled liquid hole 25, be used for making mixed liquid smoothly get into in pipette 24.

The tank body described in the embodiments of the present disclosure may be replaced by a reaction vessel or the like.

The fixed mounting gear motor 4 is put to 1 jar body upper end central point of edulcoration jar, and the gear motor output shaft passes 1 jar body of edulcoration jar and (mixing) shaft fixed connection, starts gear motor 4, and gear motor 4 drives the (mixing) shaft and rotates the liquid material that stirs in the edulcoration jar 1 and make edulcoration agent and impurity fully contact, and polyvinyl alcohol fully contacts with water.

The utility model discloses a tube coupling between edulcoration jar 1 and mixed liquid collecting tank 2 specifically is: first backflow pipe joint 14 is connected through first transfer line 5 with second row mixed liquid pipe joint 21, second backflow pipe joint 22 is connected through second transfer line 6 with first row mixed liquid pipe joint 15, first transfer line 5 and second transfer line 6 are installed respectively and are driven the interior liquid flow's of transfer line first flow pump 7, second flow pump 8, all install manual ball valve on the first transfer line, the check valve, valves such as flow control valve, guarantee that liquid can flow smoothly along the pipeline, install the controller on this filter equipment, the controller with first, second flow pump electricity is connected, the controller can be installed and be kept away from two jar body departments and the position that makes things convenient for the people to operate.

It should be noted that, the present application relates to a filtering apparatus for PVB liquid material, and the positions and connection relations of some valves, for example, a valve for discharging impurity liquid in the impurity removing tank 1 and a valve for discharging PVB liquid material are not described in detail, and they belong to the connection relation between the impurity removing tank 1 and other apparatuses, and are not related to the filtering apparatus of the present application, and those skilled in the art can clearly understand the flow direction of impurity liquid and PVB liquid material in the existing process flow of PVB liquid material, for example, impurity liquid is discharged from a sewage treatment tank or a sewage treatment plant, and PVB liquid material flows to a reaction kettle in other workshops for performing an acetalization reaction.

Referring to fig. 6, fig. 6 is a layout diagram of the pipeline of the present disclosure, in which arrows indicate the flowing direction of the liquid, and the overall flow steps of the filtering device are described with reference to fig. 6 as follows:

the first stage is as follows: collecting a mixed solution:

1.1, adding quantitative warm water into an impurity removal tank through a water inlet pipe joint, and adding quantitative polyvinyl alcohol raw materials or polyvinyl alcohol solution with higher concentration through a material inlet pipe joint;

1.2, starting a speed reducing motor for stirring, adding quantitative hot water into the impurity removal tank through a water inlet pipe joint after stirring for a certain time, so that polyvinyl alcohol is fully and uniformly dissolved, wherein the speed reducing motor is always in a working state in the process;

1.3, adding a quantitative impurity removing agent into the impurity removing tank through an impurity removing agent pipe joint, wherein the speed reducing motor is always in a working state in the process;

1.4, standing for a period of time after stirring is finished, discharging relatively pure PVB liquid material through a PVB liquid material discharge pipe joint, and closing a valve to prevent liquid from being discharged through the PVB liquid material discharge pipe joint after discharging the PVB liquid material in specified time or specified volume;

1.5, opening a valve on a second liquid conveying pipe, starting a second flow pump, pumping the mixed liquid in the impurity removal tank into a mixed liquid collecting tank, and after the mixed liquid is discharged at a specified time or in a specified volume, closing the valve to prevent the liquid from being discharged into the mixed liquid collecting tank through the second liquid conveying pipe;

1.6, discharging the upper-layer impurity liquid through an impurity discharging liquid pipe joint, and closing a corresponding valve after the impurity liquid is completely discharged;

1.7, collecting the mixed liquor for multiple times through the step 1.1-1.6, or properly blending PVB liquid materials in a mixed liquor collecting tank to ensure that the mixed liquor collecting tank has enough mixed liquor for use, and entering a second stage after the step 1.7 is completed;

and a second stage: using mixed liquor to flush

2.1, opening a valve on a first liquid conveying pipe, starting a first flow pump, and flushing a small amount of residual impurity liquid in an impurity removing tank by a liquid suction pipe which sucks relatively pure PVB liquid material on the lower layer in a mixed liquid collecting tank;

2.2, after the designated time, closing the first flow pump;

and 2.3, opening a valve on the second liquid conveying pipe, starting a second flow pump, and sucking residual impurity liquid in the impurity removing tank and PVB liquid material sucked from the mixed liquid collecting tank into the mixed liquid collecting tank together.

The mixed liquor in the mixed liquor collection tank is treated in the following way: after enough mixed liquid is collected in the mixed liquid collecting tank, after standing for a period of time, relatively pure PVB liquid material of the lower layer in the mixed liquid collecting tank is discharged, the residual liquid is stored in the tank, and when the mixed liquid collecting tank collects enough mixed liquid for 2-3 times, the mixed liquid and the mixed liquid stored in the tank are discharged.

Example 2:

the utility model discloses replace the control of appointed time to liquid output volume in the edulcoration jar with floater formula level sensor, from last first level sensor of installing down in proper order in the level sensor interface of edulcoration jar, the second level sensor, first level sensor, the second level sensor all adopts floater formula level sensor, PVB liquid material exports gradually in the edulcoration jar, the liquid level falls to first level sensor, first level sensor gives the controller with the signal transmission, controller control second flow pump 8 opens, mixed liquid entering in the edulcoration jar 1 mixes in the liquid collecting tank, the liquid level falls to second level sensor, second level sensor gives the controller with the signal transmission, second flow pump 8 closes.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.

Claims (9)

1. A PVB liquid material filtering device comprises an impurity removing tank and is characterized by further comprising a mixed liquid collecting tank, wherein a feeding pipe joint, a water inlet pipe joint, an impurity removing agent pipe joint and a first backflow pipe joint are fixedly installed at the upper end of the impurity removing tank body, a first row of mixed liquid pipe joints, a PVB liquid material pipe joint and an impurity removing liquid pipe joint are fixedly installed at the central position of the lower end of the impurity removing tank body, a second row of mixed liquid pipe joints and a second backflow pipe joint are fixedly installed at the upper end of the mixed liquid collecting tank, the first backflow pipe joints and the second row of mixed liquid pipe joints are connected through a first liquid conveying pipe, the second backflow pipe joints and the first row of mixed liquid pipe joints are connected through a second liquid conveying pipe, the first liquid conveying pipe and the second liquid conveying pipe are respectively provided with a first flow pump and a second flow pump for driving liquid in the liquid, the first flow pump and the second flow pump are both electrically connected with a power supply.

2. The PVB fluid filtering device according to claim 1, wherein:

the upper end central point of the edulcoration jar body puts fixed mounting gear motor, and edulcoration jar is inside to have the (mixing) shaft, and gear motor output shaft passes the edulcoration jar body and (mixing) shaft fixed connection.

3. The PVB fluid filtering device according to claim 1, wherein:

the pipette extends downwards to be connected with the inner wall of the mixed liquid collecting tank body, and a plurality of pipette holes are formed in the pipe wall of the pipette, which is close to one side of the mixed liquid collecting tank body.

4. The PVB fluid filtering device according to claim 1, wherein:

the upper end and the lower end of the side wall of the impurity removal tank body are provided with liquid level sensor interfaces, and floating ball type liquid level sensors are arranged in the liquid level sensor interfaces.

5. The PVB fluid filtering device according to claim 1, wherein:

the middle position of the side wall of the impurity removing tank body is provided with a temperature sensor interface, and a digital display type temperature sensor is arranged in the temperature sensor interface.

6. The PVB fluid filtering device according to claim 1, wherein:

and a liquid discharge pipe joint is fixed at the lower end of the mixed liquid collecting tank body.

7. The PVB fluid filtering device according to claim 6, wherein:

the central axis of the liquid discharge pipe joint is parallel to and does not coincide with the central axis of the liquid suction pipe.

8. The PVB fluid filtering device according to claim 1, wherein:

the controller is electrically connected with the first flow pump and the second flow pump.

9. The PVB fluid filtering device according to claim 8, wherein:

the controller is electrically connected with the floating ball type liquid level sensor.

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