CN115300967A - Sewage treatment equipment - Google Patents

Abstract

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment equipment, comprising a frame, a fixed pipe, a piston rod, a filter assembly and a drive assembly. In the present invention, the piston rod is driven to reciprocate along the axis direction by the drive assembly, thereby changing the volume of the first chamber. When the piston rod is far away from the first chamber, the volume increases and the sewage is sucked into the first chamber from the water inlet pipe. , when the piston rod is close to the first chamber, the volume is reduced, which makes the sewage flow out of the drain pipe after passing through the flexible filter screen; at the same time, the flexible filter screen oscillates, and the impurities attached to the flexible filter screen are shaken off to avoid Blocking the flexible filter screen reduces the treatment efficiency; by properly setting the flow direction, the shaken impurities can flow to the slag outlet through the drain valve, and the impurities can be discharged in time to prevent the impurities from re-attaching to the flexible filter screen and causing blockage to ensure the normal operation of the sewage treatment equipment. At the same time, improve work efficiency.

Description

A kind of sewage treatment equipment

technical field

The invention relates to the technical field of sewage treatment, in particular to sewage treatment equipment.

Background technique

Sewage is produced in the production process of many industries, and the sewage needs to be treated before discharge. Most of the sewage treatment equipment in the prior art includes a filter module to filter the sewage, but in the process of use, the filter The net is very easy to block, thereby affecting the subsequent sewage treatment work and reducing the sewage treatment efficiency. In order to ensure the continuation of the sewage treatment work, it is necessary to wash or scrape the impurities attached to the filter. For example, the Chinese patent with the notification number CN107986471B discloses a sewage filter; The cleaning of the filter screen is completed during the treatment process, thereby avoiding the continuous filtration of sewage due to the clogging of the filter screen.

However, in the sewage treatment equipment in the prior art, the impurities adsorbed on the filter are not easy to collect after being scraped off, and may reattach to the filter, and the impurities may affect the normal operation of the rotating structure and affect the work efficiency.

Contents of the invention

The invention provides a sewage treatment equipment to solve the problem of low work efficiency caused by impurities on the filter screen of the existing sewage treatment equipment being scraped off and reattached to the filter screen.

A kind of sewage treatment equipment of the present invention adopts following technical scheme: A kind of sewage treatment equipment comprises:

Frame, the frame is provided with a casing, and a support pipe is horizontally provided in the casing; one end of the support pipe is connected with a swivel ring; the lower part of the support pipe is provided with a slag outlet, and the slag outlet extends out of the casing;

The fixed tube is coaxially arranged in the support tube, and a sealing ring is arranged between the fixed tube and the support tube; the inner wall of the sealing ring is connected with the fixed tube, and the outer wall of the seal ring is connected with the support tube;

The piston column includes a movable column and a piston part arranged coaxially; the piston part is arranged at the end of the movable column; the diameter of the piston part is larger than the diameter of the movable column; The inner wall of the ring abuts against the movable column;

The filter assembly is set in the housing; the filter assembly includes a filter cartridge, an end cover, a flexible filter screen, a one-way valve group and a plurality of support rods; the filter cartridge and the support pipe are arranged coaxially, and the two ends of the filter cartridge are respectively connected to the end cover and the supporting pipe; the lower part of the filter cartridge is connected with a drain pipe, and the drain pipe extends out of the shell; the end cover is connected with a water inlet pipe, and the end of the water inlet pipe away from the end cover passes out of the shell; multiple support rods are arranged in the filter cartridge, along the The filter cartridge is evenly distributed in the circumferential direction; one end of the support rod is connected to the end cover, and the other end is connected to the sealing ring; the flexible filter screen is surrounded by a circle and is sleeved outside multiple support rods; the flexible filter screen, end cover, fixed pipe and piston The first chamber is defined by the upper part; the second chamber is defined by the end cover, the filter cartridge, the flexible filter screen and the sealing ring; the third chamber is defined by the piston rod, the fixed tube, the sealing ring, the support tube and the swivel ring; the one-way The valve group includes a water inlet valve, a drain valve, a drain valve and a water return valve; the water inlet valve is set in the water inlet pipe so that water can only flow into the first chamber; the drain valve is set in the drain pipe so that the water in the second chamber It can only flow out of the filter cartridge; the drain valve and the return valve are both set on the sealing ring; the drain valve is located at the lower part of the seal ring, and the drain valve allows the water in the first chamber to flow to the third chamber; The water valve allows the water in the third chamber to flow to the second chamber;

The driving assembly is configured to drive the piston rod to reciprocate along the axis of the fixed pipe.

Further, there are two filter assemblies, and there are two support pipes, fixed pipes, and sealing rings, which are respectively located on both sides of the swivel ring; the two filter assemblies are arranged symmetrically with respect to the swivel ring.

Further, the flexible filter screen is tapered, and the diameter of the end close to the sealing ring is larger than the diameter of the end close to the end cover.

Further, the driving assembly is used to make the swivel rotate forward and backward reciprocally, and the swivel is threadedly engaged with the movable column.

Further, a filter plate is provided at one end of the fixed pipe facing the flexible filter screen.

Further, the connection between the support pipe and the filter cartridge, and between the end cover and the filter cartridge are all connected by flanges.

Further, the slag outlet is connected with a collection bin.

Further, a water storage tank is connected under the drain pipe.

Further, an inspection port is provided on the casing, and an inspection cover is provided at the inspection port.

Further, the support tube is fixed to the shell through the support piece.

The beneficial effect of the present invention is: a kind of sewage treatment equipment of the present invention. The driving assembly drives the piston rod to reciprocate along the axial direction, thereby changing the volume of the first chamber. When the piston rod is far away from the first chamber, the volume increases, and the sewage is sucked into the first chamber from the water inlet pipe. When the piston rod is close to the first chamber, the volume increases. In the first chamber, the volume decreases, prompting the sewage to flow out from the drain pipe after passing through the flexible filter; at the same time, the flexible filter vibrates to shake off the impurities attached to the flexible filter, preventing impurities from clogging the flexible filter. The net causes the treatment efficiency to decrease; by setting the flow direction reasonably, the impurities shaken off the flexible filter will flow to the slag outlet with part of the water through the drain valve, and the impurities will be discharged in time to prevent the impurities from adhering to the flexible filter again and causing blockage, ensuring sewage treatment While the equipment is running normally, the work efficiency is improved.

Further, by arranging two sets of filter components, the sewage in the two first chambers can be treated simultaneously during the reciprocating movement of the piston rod, which improves the efficiency of sewage treatment. The filter plate is set to prevent impurities from entering the moving position of the piston rod, which will affect the sealing effect between the piston rod and the fixed pipe, thereby avoiding the wear and tear of the equipment by impurities and prolonging the service life of the equipment.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings on the premise of not paying creative efforts.

Fig. 1 is the structural representation of the embodiment of a kind of sewage treatment equipment of the present invention;

Fig. 2 is the front view of the embodiment of the present invention;

Fig. 3 is a structural schematic diagram of the internal structure of the housing in an embodiment of the present invention;

Fig. 4 is a schematic structural view of Fig. 3 with the filter cartridge and support members removed;

Fig. 5 is a sectional view of Fig. 3;

Fig. 6 is a partial enlarged view of place A in Fig. 5;

FIG. 7 is a partial enlarged view of B in FIG. 5 .

In the figure: 100, frame; 110, shell; 111, inspection port; 112, inspection cover; 210, support pipe; 211, slag outlet; 212, collection bin; 213, support member; 220, swivel; 230 , fixed pipe; 231, filter plate; 240, sealing ring; 241, drain valve; 242, return valve; 250, piston column; 251, movable column; 252, piston part; 300, filter assembly; 310, end cover; 311, water inlet pipe; 312, water inlet valve; 320, filter cartridge; 321, drain pipe; 322, drain valve; 323, water storage tank; 330, flexible filter screen; 340, support rod; 350, first chamber; 360 , the second chamber; 370, the third chamber; 400, the driving assembly.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The accompanying drawings in the present invention are only used to show the specific structure and its connection relationship, which are only schematic, and do not represent the specific dimensions and the proportional relationship between the parts.

An embodiment of a sewage treatment equipment of the present invention, as shown in Figures 1 to 7, a sewage treatment equipment includes a frame 100, a fixed pipe 230, a piston rod 250, a filter assembly 300 and a drive assembly 400; the frame 100 A housing 110 is provided on the top, and a support tube 210 is horizontally provided in the housing 110, and the support tube 210 is fixed to the housing 110 through a support member 213; one end of the support tube 210 is connected with a swivel 220; The slag outlet 211 and the slag outlet 211 protrude from the shell 110; the fixed pipe 230 is coaxially arranged in the support pipe 210, and a sealing ring 240 is arranged between the fixed pipe 230 and the support pipe 210; the inner wall of the sealing ring 240 and the fixed pipe 230 Connected, the outer wall of the seal ring 240 is connected with the support tube 210; the piston rod 250 includes a coaxial movable rod 251 and a piston part 252; the piston part 252 is arranged at the end of the movable rod 251; the diameter of the piston part 252 is larger than that of the movable rod 251 Diameter; the piston part 252 is inserted into the fixed tube 230, and is in sliding and sealed connection with the fixed tube 230; the inner wall of the swivel 220 abuts against the movable column 251;

The filter assembly 300 is arranged in the housing 110; the filter assembly 300 includes a filter cartridge 320, an end cover 310, a flexible filter screen 330, a one-way valve group and a plurality of support rods 340; the filter cartridge 320 is coaxially arranged with the support pipe 210, The two ends of the filter cartridge 320 are respectively connected to the end cover 310 and the support pipe 210; the bottom of the filter cartridge 320 is connected to a drain pipe 321, and the drain pipe 321 protrudes from the housing 110; the end cover 310 is connected to a water inlet pipe 311, which is away from the One end of the end cover 310 passes through the housing 110; a plurality of support rods 340 are arranged in the filter cartridge 320, and are evenly distributed along the circumference of the filter cartridge 320; one end of the support rods 340 is connected to the end cover 310, and the other end is connected to the sealing ring 240 The flexible filter screen 330 is surrounded by a circle, and is sleeved on the outside of a plurality of support rods 340; the flexible filter screen 330, the end cover 310, the fixed pipe 230 and the piston part 252 define the first chamber 350; the end cover 310, the filter cartridge 320 , the flexible strainer 330 and the seal ring 240 define the second chamber 360; the piston rod 250, the fixed pipe 230, the seal ring 240, the support pipe 210 and the swivel ring 220 define the third chamber 370; the one-way valve group includes Water valve 312, drain valve 322, multiple drain valves 241 and multiple return valves 242; water inlet valve 312 is set in the water inlet pipe 311, so that water can only flow into the first chamber 350; drain valve 322 is set in the drain pipe 321, the water in the second chamber 360 can only flow out of the filter cartridge 320; the drain valve 241 and the return valve 242 are all located on the sealing ring 240; and the drain valve 241 is located at the bottom of the seal ring 240, and the drain valve 241 makes the second The water in the first chamber 350 flows to the third chamber 370; the water return valve 242 is located on the upper part of the sealing ring 240, and the water return valve 242 makes the water in the third chamber 370 flow to the second chamber 360; the driving assembly 400 is configured to drive the piston The column 250 reciprocates along the axis of the fixed pipe 230 .

In the above structure, the driving assembly 400 drives the piston rod 250 to reciprocate along the axial direction, thereby changing the volume of the first chamber 350. When the piston rod 250 moves away from the first chamber 350, the volume of the first chamber 350 increases. Sewage is sucked into the first chamber 350 from the water inlet pipe 311, and when the piston rod 250 is close to the first chamber 350, the volume of the first chamber 350 decreases, so that the sewage flows out from the drain pipe 321 after passing through the flexible filter screen 330; At the same time, the flexible filter screen 330 oscillates to shake off the impurities attached to the flexible filter screen 330, avoiding the reduction of treatment efficiency caused by impurities clogging the flexible filter screen 330; During the reciprocating movement of the column 250, the volume of the third chamber 370 increases and decreases reciprocally. When the volume of the third chamber 370 increases, the impurities that are shaken off enter the third chamber 370 through the drain valve 241 along with the liquid, and the impurities Move to the slag outlet 211 under the action of gravity; when the volume of the third chamber 370 shrinks, the water in the third chamber 370 enters the second chamber 360 through the return valve 242; the impurities are discharged in time after being shaken , to prevent impurities from reattaching to the flexible filter screen 330 to cause clogging, and to ensure the normal operation of the sewage treatment equipment while improving work efficiency.

In this embodiment, there are two filter assemblies 300, two support pipes 210, two fixed pipes 230, and two seal rings 240, respectively located on both sides of the swivel 220; the two filter assemblies 300 are symmetrical about the swivel 220 set up. During the reciprocating movement of the piston rod 250, the sewage in the two first chambers 350 can be treated simultaneously, which improves the efficiency of sewage treatment.

In this embodiment, the flexible filter screen 330 is tapered, and the diameter of the end close to the sealing ring 240 is greater than the diameter of the end cover 310. The lower part of the flexible filter screen 330 is inclined, and the vertical height near the drain valve 241 is At the bottom, after the impurity is shaken, under the action of gravity, it moves along the flexible filter screen 330 to the direction of the sewage valve 241, and the impurity is discharged more smoothly, which further improves the efficiency of sewage treatment.

In this embodiment, the drive assembly 400 is used to make the swivel 220 rotate back and forth, and the swivel 220 and the movable column 251 are screwed together. Reciprocating movement along the axis direction, reciprocating close to and away from the first chamber 350 , thereby completing the filtering work under the action of the flexible filter net 330 .

In this embodiment, the end of the fixed pipe 230 facing the flexible filter screen 330 is provided with a filter plate 231. When the piston rod 250 is away from the first chamber 350, the sewage is filtered by the filter plate 231, and the impurities are blocked by the filter plate 231 to avoid Impurities enter the sliding range of the piston rod 250, thereby avoiding the sealing effect of the impurities on the piston rod 250 and the fixed pipe 230, reducing wear and damage to the equipment, and prolonging the service life of the equipment.

In this embodiment, between the support pipe 210 and the filter cartridge 320, and between the end cap 310 and the filter cartridge 320 are connected by flanges, which is convenient for maintenance, and when some parts of the equipment are damaged, the corresponding parts can be replaced to reduce the Maintenance costs.

In this embodiment, the slag outlet 211 is connected to the collection bin 212, and the separated impurities flow to the third chamber 370 under the action of the blowdown valve 241, and flow from the slag outlet 211 to the collection bin 212 under the action of gravity. A water storage tank 323 is connected to the bottom of the drain pipe 321. When the piston rod 250 is close to the first chamber 350, the drain valve 322 is opened, and the filtered water flows from the drain pipe 321 to the water storage tank 323.

In this embodiment, an inspection port 111 is provided on the casing 110, and an inspection cover 112 is provided at the inspection port 111, which is convenient for inspection and maintenance, and can prevent external factors from affecting the operation of the equipment.

In combination with the above-mentioned embodiments, the use principle and working process of the present invention are as follows: make the first chamber 350, the second chamber 360, the third chamber 370 and the collection bin 212 be filled with clean water, insert the two water inlet pipes 311 into In the sewage that needs to be filtered, the driving assembly 400 promotes the reciprocating rotation of the swivel 220. Since the swivel 220 and the piston rod 250 are screwed together, when the swivel 220 reciprocates, it will drive the piston rod 250 to reciprocate along the axial direction. , so that the volume of the two first chambers 350 increases and decreases reciprocally, and when the volume of one first chamber 350 increases, the volume of the other first chamber 350 decreases; since the diameter of the movable column 251 is smaller than the diameter of the piston part 252 diameter, so during the reciprocating movement of the piston rod 250, the volume of the third chamber 370 increases and decreases reciprocally; and when the first chamber 350 increases, the third chamber 370 decreases; when the first chamber 350 decreases , the third chamber 370 increases.

When the piston rod 250 is away from the first chamber 350, the water inlet valve 312 on this side is opened, and the drain valve 322 is closed; the sewage is sucked into the first chamber 350 from the water inlet pipe 311, and the clean water in the third chamber 370 passes through The water return valve 242 flows to the second chamber 360 ; when the liquid flows into the fixed pipe 230 , the impurities therein are first filtered by the filter plate 231 .

When the piston rod 250 is close to the first chamber 350, the drain valve 322 on this side is opened, and the water inlet valve 312 is closed; Inside, the filtered water flows from the drain pipe 321 to the water storage tank 323 . Part of the liquid in the first chamber 350 enters the third chamber 370 through the drain valve 241 .

Along with the reciprocating movement of the piston rod 250, the volume of the first chamber 350 continuously reciprocates and expands, and the flexible filter screen 330 is also constantly scaled; Shake down, and because the flexible filter screen 330 is conical, the diameter near the end of the drain valve 241 is greater than the diameter near the end cover 310, so the impurities that are shaken off move towards the drain valve 241. When the piston rod 250 approaches the first chamber 350, the volume of the third chamber 370 increases, and the impurities that are shaken off in the first chamber 350 enter the third chamber 370 through the drain valve 241 along with the liquid, Then it enters the collection bin 212 through the slag outlet 211 under the action of gravity.

When the impurities in the collecting bin 212 accumulate to a certain extent, the collecting bin 212 is cleaned, and then the above process is repeated.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (10)

1. A kind of sewage treatment equipment, is characterized in that, comprises: Frame, the frame is provided with a casing, and a support pipe is horizontally provided in the casing; one end of the support pipe is connected with a swivel ring; the lower part of the support pipe is provided with a slag outlet, and the slag outlet extends out of the casing; The fixed tube is coaxially arranged in the support tube, and a sealing ring is arranged between the fixed tube and the support tube; the inner wall of the sealing ring is connected with the fixed tube, and the outer wall of the seal ring is connected with the support tube; The piston column includes a movable column and a piston part arranged coaxially; the piston part is arranged at the end of the movable column; the diameter of the piston part is larger than the diameter of the movable column; The inner wall of the ring abuts against the movable column; The filter assembly is set in the housing; the filter assembly includes a filter cartridge, an end cover, a flexible filter screen, a one-way valve group and a plurality of support rods; the filter cartridge and the support pipe are arranged coaxially, and the two ends of the filter cartridge are respectively connected to the end cover and the supporting pipe; the lower part of the filter cartridge is connected with a drain pipe, and the drain pipe extends out of the shell; the end cover is connected with a water inlet pipe, and the end of the water inlet pipe away from the end cover passes out of the shell; multiple support rods are arranged in the filter cartridge, along the The filter cartridge is evenly distributed in the circumferential direction; one end of the support rod is connected to the end cover, and the other end is connected to the sealing ring; the flexible filter screen is surrounded by a circle and is sleeved outside multiple support rods; the flexible filter screen, end cover, fixed pipe and piston The first chamber is defined by the upper part; the second chamber is defined by the end cover, the filter cartridge, the flexible filter screen and the sealing ring; the third chamber is defined by the piston rod, the fixed tube, the sealing ring, the support tube and the swivel ring; the one-way The valve group includes a water inlet valve, a drain valve, a drain valve and a water return valve; the water inlet valve is set in the water inlet pipe so that water can only flow into the first chamber; the drain valve is set in the drain pipe so that the water in the second chamber It can only flow out of the filter cartridge; the drain valve and the return valve are both set on the sealing ring; the drain valve is located at the lower part of the seal ring, and the drain valve allows the water in the first chamber to flow to the third chamber; The water valve allows the water in the third chamber to flow to the second chamber; The driving assembly is configured to drive the piston rod to reciprocate along the axis of the fixed pipe. 2. A kind of sewage treatment equipment according to claim 1, characterized in that: there are two filter assemblies, two supporting pipes, fixed pipes, and sealing rings, which are respectively located on both sides of the swivel; two The filter assembly is arranged symmetrically about the swivel. 3. The sewage treatment equipment according to claim 1 or 2, characterized in that the flexible filter screen is conical, and the diameter of the end close to the sealing ring is larger than the diameter of the end close to the end cover. 4 . The sewage treatment equipment according to claim 3 , wherein the driving assembly is used to make the swivel rotate forward and backward reciprocally, and the swivel and the movable column are screwed together. 5. A sewage treatment device according to claim 4, characterized in that: a filter plate is provided at one end of the fixed pipe facing the flexible filter net. 6. A sewage treatment device according to claim 4, characterized in that: between the support pipe and the filter cartridge, and between the end cover and the filter cartridge are connected by flanges. 7. The sewage treatment equipment according to claim 4, characterized in that: the slag outlet is connected with a collection bin. 8. The sewage treatment equipment according to claim 4, characterized in that: a water storage tank is connected under the drain pipe. 9. The sewage treatment equipment according to claim 4, characterized in that: an inspection port is provided on the housing, and an inspection cover is provided at the inspection port. 10. The sewage treatment equipment according to claim 4, characterized in that: the support pipe is fixed to the housing through a support member.

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