CN216366998U - Anti-washing unit of sewage pump entry for PTA production - Google Patents

Abstract

The application provides a sewage pump entry back flush device for PTA production belongs to sewage treatment technical field. The inlet back-flushing device of the sewage pump for PTA production comprises a filtering component and a back-flushing component. The filter assembly comprises a first shell, a second shell, a connecting piece, a fixed net and interface pieces, wherein the first shell and the second shell are fixedly connected through the connecting piece, the fixed net is movably plugged in the mouth of the second shell, the interface pieces are provided with four, the first shell and the second shell are respectively and fixedly connected with two interface pieces, the recoil assembly comprises a driving piece and a movable net piece, the driving piece is fixedly connected with the first shell, and the movable net piece is movably plugged in the mouth of the first shell. In this application, the filter assembly can improve the change efficiency of filter screen under the prerequisite of guaranteeing the leakproofness, and the recoil subassembly can make the dirt break away from the filter screen through the friction vibrations of filter screen, has improved anti-abluent effect.

Description

Anti-washing unit of sewage pump entry for PTA production

Technical Field

The application relates to the technical field of sewage treatment, in particular to a sewage pump inlet backwashing device for PTA production.

Background

Purified Terephthalic Acid (PTA) is an important raw material for light textile chemical production, and a large amount of high-concentration organic wastewater-PTA wastewater is generated in the production process, the wastewater contains dozens of organic matters, such as a large amount of acetic acid, benzoic acid, methyl acetate and the like, and also contains some solid particles, the solid particles need to be filtered before entering a sewage pump so as not to influence the reliable work of the sewage pump, and a backwashing device is usually arranged before the sewage pump so that the filtering capacity of a filter tank is recovered in a short time.

However, some dirt is adhered to the filter screen and is not easy to be washed down by water flow, so that the back cleaning effect is influenced, in addition, in order to replace the filter screen regularly, the existing back cleaning device is generally provided with a side door or a replacing window, but the sealing performance is not good, and sewage can seep out from the parts to cause pollution.

How to invent a sewage pump inlet backwashing device for PTA production to improve the problems becomes a problem to be solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In order to make up for the above deficiencies, the present application provides a sewage pump inlet backwashing device for PTA production, which aims to improve the problems mentioned in the background art.

The embodiment of the application provides a sewage pump inlet back flush device for PTA production, including filter assembly and recoil subassembly.

The filter assembly comprises a first shell, a second shell, a connecting piece, a fixed net and interface pieces, wherein the first shell and the second shell are fixedly connected through the connecting piece, the fixed net is movably plugged in the mouth of the second shell, the interface pieces are provided with four, the first shell and the second shell are respectively fixedly connected with two interface pieces, the recoil assembly comprises a driving piece and a movable net piece, the driving piece is fixedly connected with the first shell, the movable net piece is movably plugged in the mouth of the first shell, the movable net piece is fixedly connected with the driving piece, the fixed net and the movable net piece are planar filter nets, and the movable net piece is movably attached to the fixed net.

In the implementation process, under normal conditions, PTA sewage flows in from the interface part above the first shell, flows out from one interface part on the second shell through the filtration of the movable net and the static net in sequence, flows into an external sewage pump, at the moment, the other two interface parts are in a closed state, when the backwashing operation is needed, the originally opened interface part is closed, the originally closed interface part is opened, cleaning water flows in from the opened interface part on the second shell, sequentially passes through the fixed net and the movable net to flush dirt from the fixed net and the movable net, the flushed sewage flows out from the interface part at the lower end of the first shell, in the backwashing process, the driving part drives the movable net to rotate, the movable net and the fixed net rub to generate vibration, the dirt is favorably separated from the fixed net and the movable net, the backwashing effect is improved, on the other hand, the first shell and the second shell clamp the movable net and the fixed net in the middle through the connecting part, when the movable net piece and the static net need to be replaced, the movable net piece and the static net can be taken down and replaced by separating the first shell and the second shell only by disconnecting the connecting piece, and the replacement efficiency is improved on the premise of ensuring the sealing property.

In a particular embodiment, the connector includes a first flange, a second flange, and a bolt.

In a specific embodiment, the first flange is fixedly connected with the first housing opening, the second flange is fixedly connected with the second housing opening, and the first flange and the second flange are fixedly connected through the bolts which are uniformly distributed.

In the implementation process, the first flange and the second flange are fixed together through the bolts, so that the first shell and the second shell can clamp the movable net piece and the static net in the middle, the flange connection has a good connection sealing effect, and the replacement efficiency of the movable net piece and the static net can be improved on the premise of ensuring the sealing property.

In a specific embodiment, each of the interface members includes a conduit and a valve, each of the valves being sealed to a corresponding end of the conduit.

In a specific embodiment, two of the pipes are fixedly connected to the upper end and the lower end of the first shell respectively, and the other two pipes are fixedly connected to the second shell.

In the implementation process, each pipeline is controlled by an independent matched valve, the forward flow of sewage and the reverse flow of clear water flow are achieved, and the pipeline at the lower end of the first shell is used as a sewage discharge outlet after cleaning, so that the sewage is discharged under the action of gravity.

In a specific embodiment, the movable net piece comprises a net surface, a frame and reinforcing ribs.

In a specific embodiment, the mesh surface is fixedly connected with the frame, and the reinforcing ribs are fixedly connected with the frame.

In a specific embodiment, the reinforcing rib abuts against the net surface, and the net surface is movably attached to the fixed net.

In a specific embodiment, a sliding pad is fixedly attached to the outer circle of the frame, and the net surface is rotatably connected with the first shell through the frame and the sliding pad.

In the implementation process, the fixed net back is also tightly attached with the elastic pad, the elastic pad tightly supports the fixed net to the net surface of the movable net piece, the two end faces of the elastic pad are respectively provided with a tooth for clamping the fixed net and the second shell, the fixed net is prevented from rotating along with the net surface of the movable net piece, the reinforcing rib is used for enabling the net surface to be attached to the large area of the fixed net and has certain pressure, the friction and vibration effect is favorably ensured, the sliding pad is used for reducing the friction force between the frame and the first shell, and the rotation smoothness is favorably realized.

In a specific embodiment, the driving member is a motor, the driving member is fixedly connected to the outer wall of the first housing, and an output shaft of the driving member is fixedly connected to the reinforcing rib.

In the implementation process, the motor drives the reinforcing ribs on the movable net piece to rotate, so that the net surface and the fixed net are in mutual friction vibration, dirt separation is facilitated, and the backwashing effect is improved.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic structural diagram of a sewage pump inlet backwashing device for PTA production according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a connection relationship between a first housing and a first flange according to an embodiment of the present disclosure;

FIG. 3 is an enlarged view of a portion of the structure at A in FIG. 1 according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a moving net according to an embodiment of the present application.

In the figure: 10-a filter assembly; 110-a first housing; 120-a second housing; 130-a connector; 131-a first flange; 132-a second flange; 133-bolt; 140-fixing the net; 150-an interface; 151-a conduit; 152-a valve; 20-a recoil assembly; 210-a driver; 220-moving net piece; 221-mesh surface; 222-a border; 223-reinforcing ribs; 224 — slide pad.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, the present application provides a sewage pump inlet backwashing device for PTA production, which includes a filtering assembly 10 and a backwashing assembly 20.

Wherein, filtering component 10 can improve the replacement efficiency of filter screen under the prerequisite of guaranteeing the leakproofness, and recoil subassembly 20 can make the dirt break away from the filter screen through the friction vibrations of filter screen, has improved anti-abluent effect.

Referring to fig. 1 to 4, the filter assembly 10 includes a first housing 110, a second housing 120, a connecting member 130, a fixed net 140 and four interface members 150, the first housing 110 and the second housing 120 are fixedly connected by the connecting member 130, the fixed net 140 is movably sealed at the mouth of the second housing 120, the interface members 150 are four, the first housing 110 and the second housing 120 are respectively and fixedly connected with two interface members 150, the backflushing assembly 20 includes a driving member 210 and a movable net member 220, the driving member 210 is fixedly connected with the first housing 110, the movable net member 220 is movably sealed at the mouth of the first housing 110, the movable net member 220 is fixedly connected with the driving member 210, the fixed net 140 and the movable net member 220 are planar filter nets, and the movable net member 220 is movably attached to the fixed net 140. Normally, PTA sewage flows in from the interface 150 above the first housing 110, flows out from one interface 150 on the second housing 120 through the filtering of the moving net 220 and the static net, flows into the external sewage pump, at this time, the other two interfaces 150 are both in a closed state, when a backwashing operation is required, the originally opened interface 150 is closed, the originally closed interface 150 is opened, cleaning water flows in from the opened interface 150 on the second housing 120, sequentially passes through the fixed net 140 and the moving net 220, washes dirt from the fixed net 140 and the moving net 220, the washed sewage flows out from the interface 150 at the lower end of the first housing 110, during the backwashing process, the driving member 210 drives the moving net 220 to rotate, the moving net 220 rubs against the fixed net 140, vibration is generated, the dirt is favorably separated from the moving net 220 and the fixed net 140, and the effect is improved, on the other hand, the first shell 110 and the second shell 120 clamp the moving net piece 220 and the fixed net 140 in the middle through the connecting piece 130, when the moving net piece 220 and the fixed net need to be replaced, the first shell 110 and the second shell 120 can be separated to take down and replace the moving net piece 220 and the fixed net 140 only by disconnecting the connecting piece 130, and therefore replacement efficiency is improved on the premise that sealing performance is guaranteed.

Referring to fig. 1 and 3, the connecting member 130 includes a first flange 131, a second flange 132, and a bolt 133. The first flange 131 is fixedly connected with the mouth of the first shell 110, the second flange 132 is fixedly connected with the mouth of the second shell 120, and the first flange 131 and the second flange 132 are fixedly connected through bolts 133 which are uniformly distributed. The first flange 131 and the second flange 132 are fixed together through the bolts 133, so that the movable net piece 220 and the static net are clamped between the first shell 110 and the second shell 120, the flange connection has a good connection sealing effect, and the replacement efficiency of the movable net piece 220 and the static net 140 is improved on the premise of ensuring the sealing property.

Each interface 150 includes a conduit 151 and a valve 152, each valve 152 being sealed to a respective end of the conduit 151. Two of the pipes 151 are fixedly connected to the upper end and the lower end of the first casing 110, respectively, and the other two pipes 151 are fixedly connected to the second casing 120. Each pipeline 151 is controlled by an independent matched valve 152, so that the forward flow of sewage and the reverse flow of clear water flow are realized, and the pipeline 151 at the lower end of the first shell 110 is used as a sewage discharge outlet after cleaning, so that the sewage can be discharged under the action of gravity.

Referring to fig. 3 and 4, the movable net member 220 includes a net surface 221, a frame 222, and a reinforcing rib 223. The net surface 221 is fixedly connected with the frame 222, and the reinforcing ribs 223 are fixedly connected with the frame 222. The reinforcing ribs 223 are tightly propped against the net surface 221, and the net surface 221 is movably attached to the fixed net 140. A sliding pad 224 is fixedly attached to the outer circle of the frame 222, and the mesh surface 221 is rotatably connected with the first housing 110 through the frame 222 and the sliding pad 224. The back of the fixed net 140 is also tightly attached with an elastic pad, the fixed net 140 is tightly abutted to the net surface 221 of the movable net piece 220 by the elastic pad, two end faces of the elastic pad are respectively provided with teeth for clamping the fixed net 140 and the second shell 120, the fixed net 140 is prevented from rotating along with the net surface 221 of the movable net piece 220, the reinforcing rib 223 is used for enabling the net surface 221 and the fixed net 140 to be attached in a large area and has certain pressure, the friction and vibration effects are favorably ensured, the sliding pad 224 is used for reducing the friction force between the frame 222 and the first shell 110, and the rotation smoothness is favorably realized.

Referring to fig. 1, the driving member 210 is a motor, the driving member 210 is fixedly connected to the outer wall of the first housing 110, and an output shaft of the driving member 210 is fixedly connected to the reinforcing rib 223. The motor drives the reinforcing ribs 223 on the movable net piece 220 to rotate, so that the net surface 221 and the fixed net 140 are in mutual friction and vibration, dirt separation is facilitated, and the backwashing effect is improved.

This sewage pump entry back flush unit for PTA production's theory of operation: normally, PTA sewage flows in from the pipeline 151 above the first housing 110, flows out from one of the pipelines 151 on the second housing 120 through the filtering of the movable net 220 and the static net, and flows into the external sewage pump, at this time, the valves 152 on the other two pipelines 151 are both in a closed state, when a backwashing operation is required, the valve 152 on the originally opened pipeline 151 is closed, the pipeline 151 in the originally closed state is opened, cleaning water flows in from the opened pipeline 151 on the second housing 120, sequentially passes through the fixed net 140 and the movable net 220, washes dirt from the fixed net 140 and the movable net 220, the washed sewage flows out from the pipeline 151 at the lower end of the first housing 110, during the backwashing, the driving member 210 drives the movable net 220 to rotate, the movable net 220 and the fixed net 140 rub against each other, vibration is generated, and the dirt is favorably separated from the movable net 220 and the fixed net 140, on the other hand, the first shell 110 and the second shell 120 clamp the movable net 220 and the fixed net 140 in the middle through the connection of the first flange 131 and the second flange 132, and when the movable net 220 and the fixed net need to be replaced, the movable net 220 and the fixed net 140 can be taken down and replaced by separating the first shell 110 and the second shell 120 only by disconnecting the bolt 133, which is beneficial to improving the replacement efficiency on the premise of ensuring the sealing property.

It should be noted that the specific model specifications of the bolt 133, the pipeline 151, the valve 152 and the driving element 210 need to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art, so detailed description is omitted.

The power supply of the drive member 210 and its principle will be clear to a person skilled in the art and will not be described in detail here.

The above description is only an example of the present application and is not intended to limit the scope of 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. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A sewage pump inlet backwashing device for PTA production is characterized by comprising

The filter assembly (10) comprises a first shell (110), a second shell (120), a connecting piece (130), a fixed net (140) and interface pieces (150), wherein the first shell (110) and the second shell (120) are fixedly connected through the connecting piece (130), the fixed net (140) is movably plugged at the mouth of the second shell (120), the number of the interface pieces (150) is four, and the first shell (110) and the second shell (120) are respectively and fixedly connected with two interface pieces (150);

recoil subassembly (20), recoil subassembly (20) are including driving piece (210) and move net spare (220), driving piece (210) with first casing (110) fixed connection, move net spare (220) activity shutoff in the oral area of first casing (110), move net spare (220) with driving piece (210) fixed connection, net (140) are fixed to the net with move net spare (220) are the plane filter screen, move net spare (220) activity laminating in fixed net (140).

2. The intake backwash device for a sewage pump for PTA production as recited in claim 1, wherein said connecting member (130) comprises a first flange (131), a second flange (132) and a bolt (133).

3. The sewage pump inlet backwashing device for PTA production according to claim 2, wherein said first flange (131) is fixedly connected to the mouth of said first housing (110), said second flange (132) is fixedly connected to the mouth of said second housing (120), and said first flange (131) and said second flange (132) are fixedly connected by said bolts (133) uniformly distributed.

4. The intake backwash device for a sewage pump used in PTA production as recited in claim 1, wherein each of said interface members (150) comprises a pipe (151) and a valve (152), and each of said valves (152) is sealed off at one end of the corresponding pipe (151).

5. The intake backwashing apparatus of the sewage pump for PTA production according to claim 4, wherein two of said pipes (151) are fixedly connected to the upper and lower ends of said first housing (110), respectively, and the other two of said pipes (151) are fixedly connected to said second housing (120).

6. The intake backwashing apparatus of the sewage pump for PTA production according to claim 5, wherein said moving net member (220) comprises a net surface (221), a frame (222), and reinforcing ribs (223).

7. The intake backwashing device of the sewage pump for PTA production according to claim 6, wherein said mesh surface (221) is fixedly connected to said frame (222), and said reinforcing ribs (223) are fixedly connected to said frame (222).

8. The intake backwashing device of the sewage pump for PTA production according to claim 7, wherein said reinforcing ribs (223) abut against said net surface (221), and said net surface (221) is movably attached to said fixed net (140).

9. The intake backwashing device of the sewage pump for PTA production according to claim 8, wherein a sliding pad (224) is fixedly attached to the outer circumference of said frame (222), and said net surface (221) is rotatably connected to said first housing (110) through said frame (222) and said sliding pad (224).

10. The inlet backwashing device of the sewage pump for PTA production of claim 9, wherein said driving member (210) is a motor, said driving member (210) is fixedly connected to the outer wall of said first housing (110), and the output shaft of said driving member (210) is fixedly connected to said reinforcing rib (223).

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