CN219860654U - Device for separating solid from liquid in sewage - Google Patents

Abstract

The utility model discloses a device for solid-liquid separation of sewage, and belongs to the technical field of sewage treatment. The technical proposal is as follows: the device comprises a treatment box, wherein a storage box is arranged on one side of the treatment box, the treatment box is communicated with the storage box, a water inlet and a water outlet are formed in one end, far away from the storage box, of the treatment box, and a door is arranged on the storage box; a vertical plate is arranged between the treatment box and the storage box, a filter plate is arranged between the upper part of the vertical plate and the treatment box, the water inlet is positioned above the filter plate, and the water outlet is positioned below the filter plate. The utility model can efficiently and timely push the solid dirt trapped on the filter plate into the storage box through the scraping plate, thereby avoiding the accumulation of the dirt on the filter plate and the blockage of the filter holes, improving the filter efficiency of the filter plate, reducing the frequency of manually cleaning the filter plate and realizing the long-term operation of the solid-liquid separation device.

Description

Device for separating solid from liquid in sewage

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a device for solid-liquid separation of sewage.

Background

In wastewater treatment, solid-liquid separation is an indispensable process for purifying sewage, and is widely applied to the sewage treatment industry to remove suspended matters in water and large-volume garbage, so as to reduce turbidity, purify water quality and reduce the phenomena of system dirt, bacteria and algae, corrosion and the like.

In the prior art, a filter screen is adopted to intercept and remove solid particles in sewage, and the filter screen is often made into various forms such as a plate type, a cylinder type and the like and is applied to a solid-liquid separation device. For example, an environment-friendly sewage solid-liquid separation device disclosed in patent chinese patent No. CN207175618U and a municipal sewage treatment device disclosed in patent No. CN109721188a are disclosed, but both the two devices are not provided with the functions of automatic slag removal and scale removal, and when in actual use, a filter screen or a filter plate is easy to accumulate impurities in the device after long-time use, so that the filtering effect is affected, the long-term operation of the device is affected, and the slag removal treatment is required to be performed by stopping periodically, so that the labor intensity is high.

In order to solve the problems, the prior art generally uses means such as vibration, pushing plate slag scraping, backwashing and the like to clean pollutants. As in chinese patent No. 216023490U, there is provided an anti-clogging sewage filtering apparatus in which an inclined dividing net and two layers of multi-stage filtering members are provided, and when sewage enters the inside of the filtering device, the sewage continuously falls down to the multi-stage filtering layers under the action of gravity. The impurities in the water are intercepted by the separation net, and the supporting plate extrudes the spring to vibrate up and down under the drive of the motor, so that not only can the residual water stain on the impurities be shaken off, but also the impurities can slide down along the inclined plate and are accumulated at the inlet of the inbox; the impurities are extruded into the inlet baffle by self gravity and fall into the collecting box. However, the patent has certain limitation in application, and if the patent is applied to solid-liquid separation of impurities with light weight and large volume, the impurities are difficult to push the baffle at the inlet of the collecting box away under the action of gravity; and the vertical vibration of the separation net can shake off part of impurities with the diameters equivalent to those of the sieve holes and enter the subsequent treatment unit.

Chinese patent No. CN208869334U discloses a novel sewage treatment grille machine with grille scraping and cleaning function, wherein four electric telescopic rods are arranged on the upper surface of the sewage treatment tank, and two filter grilles are connected to filter the solid matters in the sewage. The push plate and the cleaning brush are arranged on the upper surface of the sewage pool near the rear side, the grille can move up and down by using the telescopic rod, and meanwhile, the motor drives the push plate to move back and forth, so that the impurities on the grille are cleaned. The technical scheme provided by the patent avoids the erosion of polluted water of electrical equipment and can realize the cleaning of the garbage on the surface of the grille. However, the slag removal mode has certain limitation, the cleaning brush only moves back and forth on the surface of the water tank, and the cleaning brush is suitable for cleaning pollutants floating on the water surface, and can sink into the water when the density of impurities is high, so that the slag removal effect is affected.

The Chinese patent No. 109276921A provides a sewage treatment device with a movable filter plate, wherein a back flushing mechanism is adopted to back flush the bottom of the filter plate which can move up and down, attached filter residues are removed, the filter residues are discharged through a reverse slag discharge port positioned on the side wall of the device, the purposes of avoiding manual disassembly and assembly of the filter plate and improving the sewage treatment efficiency are achieved, and the manual labor intensity is reduced. However, in practical application, the backwashing method has the problem of high water content of filter residues, and the subsequent scum treatment process and difficulty are increased.

In summary, the existing sewage filtering equipment generally has the problems that the trapped solid pollutants are not cleaned timely, the filtering holes are easy to be blocked, and the filtering device cannot continuously run for a long time. And has certain limitations when applied to sewage with complex components, high pollutant concentration and poor water quality. For example: in the filtering process of the synthetic rubber sewage containing a large amount of oligomers and colloidal particles, as the rubber has certain viscosity, if the pore diameter of a selected screen is smaller, rubber particles are firstly inlaid on the screen, more oligomers and rubber particles are bridged and adhered to the surface of the screen, and the oligomers and the rubber particles are continuously combined and expanded to cause the pollution and blockage of the screen, have viscosity and cannot fall off automatically under the action of gravity; if the aperture of the selected screen is larger, rubber particles enter the subsequent processing unit, the problem of blocking the water conveying pipeline can occur, and more difficulties are caused for production and manual cleaning. If sewage with high hardness and large alkalinity is treated, carbonate and various microorganisms, organic matters and inorganic salts in the water stay on the surface of the filter screen for a long time to easily form hard scale and breeding slime, cannot be removed through self-cleaning, and the phenomenon that the water passing area of the filter screen is reduced and the filter screen is blocked is caused due to long-time accumulation.

Therefore, a solid-liquid separation device which has wide application range and low use limitation, can effectively improve the filtering efficiency, reduce the content of solid pollutants and the working intensity of workers is required to be designed, and is applied to the field of sewage treatment.

Disclosure of Invention

The utility model aims to solve the technical problems that: the utility model provides a device for sewage solid-liquid separation has the function of solid-liquid separation and automatic sediment of scraping, has overcome the filter screen jam problem that the untimely solid pollutant clearance that remains of sewage filter equipment that exists among the prior art leads to, and application scope is wide, and the use limitation is low, can effectively improve filtration efficiency, reduces solid pollutant's content and labourer working strength, has created good condition for sewage treatment plant's long-term steady operation.

The technical scheme of the utility model is as follows:

the device for separating the solid from the liquid of the sewage comprises a treatment box, wherein a storage box is arranged on one side of the treatment box, the treatment box is communicated with the storage box, a water inlet and a water outlet are formed in one end, far away from the storage box, of the treatment box, and a door is arranged on the storage box; a vertical plate is arranged between the treatment box and the storage box, a filter plate is arranged between the upper part of the vertical plate and the treatment box, the water inlet is positioned above the filter plate, and the water outlet is positioned below the filter plate; a scraping plate is arranged above the filter plate in the treatment box, a first guide rail and a second guide rail which are connected are arranged on one side of the scraping plate in the treatment box, and the first guide rail and the second guide rail which are connected extend to the vertical plate from the water inlet of the treatment box; the scraping plate is provided with a limiting block, the limiting block is arranged in the first guide rail, and the scraping plate is connected with a moving mechanism, so that the scraping plate moves along the first guide rail and the second guide rail through the limiting block; the scraping plate is not contacted with the filter plate when moving along the first guide rail, and is contacted with the upper surface of the filter plate when moving along the second guide rail; the top of the vertical plate is provided with a telescopic baffle and a groove for accommodating the telescopic baffle, and when the scraping plate moves to the vertical column, the baffle is retracted into the groove.

Sewage flows into the treatment box through the water inlet and flows through the filter plate below, and along with the flowing spreading of the sewage on the filter plate, the filter plate filters the sewage, solid dirt in the sewage is trapped above the filter plate, and the filtered sewage flows into the lower part of the treatment box through the filter hole and is discharged out of the device through the water outlet. And the telescopic baffle extends out of the groove of the vertical plate so as to block the sewage remained on the filter plate and prevent the sewage from flowing into the storage box. After the sewage is filtered by the filter plate, the moving mechanism drives the scraping plate to move towards the direction of the storage box, and in the moving process of the scraping plate, the moving track of the scraping plate sequentially passes through the first guide rail and the second guide rail due to the action of the limiting block, and the scraping plate is not contacted with the filter plate when the scraping plate moves along the first guide rail; when the scraper blade moves to the second guide rail, the scraper blade contacts the upper surface of the filter plate, and the scraper blade continuously moves along the second guide rail, so that the solid dirt is pushed to the storage box, and the telescopic baffle is retracted into the groove, so that the solid dirt can be continuously pushed into the storage box by the scraper blade for collection.

Preferably, the moving mechanism comprises a screw rod arranged at the top of the treatment box, the screw rod is driven to rotate by a motor, a moving block is connected to the screw rod in a threaded manner, a limiting rod is arranged on the moving block, and the limiting rod is arranged in parallel with the screw rod; the bottom of the moving block is connected with an automatic telescopic mechanism I, and the automatic telescopic mechanism I is connected with the scraping plate.

Preferably, the automatic telescopic mechanism I comprises a shell I, a movable column I is arranged in the shell I, a spring I is connected between the shell I and the movable column I, and the movable column I is connected with the scraping plate.

After the sewage is filtered by the filter plate, the motor is started to drive the screw rod to rotate, and the moving block can not rotate along with the limit of the limiting rod and can only move along the screw rod to the direction of the storage box. When the movable block moves, the first shell moves along with the movable block, so that the scraping plate connected with the first movable column in the first shell is driven to move towards the storage box together.

Preferably, a partition plate is arranged between the motor and the moving block, and two ends of the screw are respectively arranged on the partition plate and the treatment box through bearings.

Preferably, both ends of the limiting rod are fixed on the partition plate and the treatment box.

Preferably, the first guide rail is obliquely arranged, one end of the first guide rail, which is close to the water inlet, is higher than the other end of the first guide rail, and the second guide rail is arranged in parallel with the filter plate.

Preferably, the filter plate is obliquely arranged, and one end close to the water inlet is higher than the other end; the absolute value of the slope of the first guide rail is larger than that of the second guide rail. Therefore, when the scraping plate moves along the first guide rail, the distance between the scraping plate and the filter plate is large, the scraping plate cannot contact with the filter plate, and sewage entering from the water inlet can smoothly flow through the filter plate; when the scraper moves along the second guide rail, the distance between the scraper and the filter plate is reduced to be in contact with the scraper, so that solid dirt on the filter plate can be pushed into the storage box.

Preferably, the telescopic baffle is connected with a lifting plate, and the lifting plate vertically penetrates through the filter plate and is exposed out of the upper part of the filter plate; the bottom of the lifting plate is connected with a second automatic telescopic mechanism arranged in the treatment box, the second automatic telescopic mechanism comprises a second shell, a second movable column is arranged in the second shell, a second spring is connected between the second shell and the second movable column, and the second movable column is connected with the lifting plate. When the scraper blade removes to lifter plate department, push down the lifter plate to make the telescopic baffle who is connected with it draw in the recess of riser, thereby satisfied when sewage filters on the filter, sewage can not flow into the bin, and when needing the scraper blade to scrape solid form filth to the bin, solid form filth can get into the bin again smoothly.

Preferably, the treatment box is further provided with a purging mechanism, the purging mechanism comprises two symmetrically arranged cylinders, piston rods of the cylinders are connected with purging pipes, the purging pipes extend along the direction from the water inlet to the storage box, and the piston rods of the two cylinders respectively drive the two purging pipes to move along the direction perpendicular to the purging pipes; the purge pipe is located the filter below and is provided with the purge hole towards the one side of filter, and the purge pipe is connected with air feeder. The filter plate is purged through the purge pipe, so that the solid dirt of the small particles embedded in the filter holes and intercepted by the filter plate is separated from the filter plate in the purge process and is suspended above the filter plate, and finally the solid dirt and the solid dirt trapped on the filter plate are pushed into the storage box together through the scraping plate. Compared with the existing back flushing mode using water, the back flushing structure has the advantages that the water content of impurities is lower, and the subsequent scum treatment difficulty is greatly reduced.

Compared with the prior art, the utility model has the following beneficial effects:

1. the device solves the technical problems of filter plate blockage, poor removal efficiency and poor effect of particulate matters and suspended matters in the existing solid-liquid separation device. Through the scraper blade, can be high-efficient, in time with the solid form filth that holds back on the filter in pushing the bin, avoid debris to pile up on the filter and block up the filtration pore, improved the filtration efficiency of filter, reduced the frequency of manual cleaning filter, can realize solid-liquid separation device's long-term operation.

2. The utility model also sweeps the filter plate through the sweeping pipe, so that the solid dirt of the small particles embedded in the filter holes and intercepted by the filter plate is separated from the filter plate in the sweeping process and suspended above the filter plate, and finally the solid dirt and the solid dirt trapped on the filter plate are pushed into the storage box through the scraping plate. Compared with the existing back flushing mode using water, the back flushing structure has the advantages that the water content of impurities is lower, and the subsequent scum treatment difficulty is greatly reduced.

3. The solid-liquid separation device has the advantages of small volume, simple structure, convenient operation, low running cost and good treatment effect, and can be widely applied to different stages of sewage treatment by matching with filter plates with different apertures, thereby achieving the purposes of purifying water quality and removing solid pollutants.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic structural view of an automatic telescopic mechanism of the present utility model.

Fig. 3 is a schematic view of the structure of the lifting plate and the telescopic baffle of the present utility model.

Fig. 4 is a schematic structural view of a second automatic telescopic mechanism of the present utility model.

Fig. 5 is a schematic structural view of the purge mechanism of the present utility model.

In the figure, 1, a treatment box; 101. a water inlet; 102. a water outlet; 103. a mounting box; 104. a partition plate; 2. a storage box; 201. a door; 3. a vertical plate; 4. a filter plate; 5. a scraper; 601. a screw; 602. a motor; 603. a moving block; 604. a limit rod; 701. a first shell; 702. a movable column I; 703. a first spring; 801. a second shell; 802. a movable column II; 803. a second spring; 901. a cylinder; 902. a purge tube; 9021. a purge hole; 9022. an air inlet; 10. a first guide rail; 11. a second guide rail; 12. a telescopic baffle; 13. a lifting plate; 14. and a controller.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

Example 1

As shown in fig. 1, this embodiment provides a device for solid-liquid separation of sewage, including a treatment tank 1, a storage tank 2 is provided on one side of the treatment tank 1, a vertical plate 3 is provided between the treatment tank 1 and the storage tank 2, and separates the treatment tank 1 and the storage tank 2 into two storage spaces, but at the same time, the height of the vertical column enables the treatment tank 1 to be communicated with the storage tank 2, so that filtered sewage flows into the treatment tank 1 and solid-state sewage is stored in the storage tank 2, and solid-liquid separation storage of sewage is realized.

The treatment box 1 is provided with a water inlet 101 and a water outlet 102 at one end far away from the storage box 2, wherein the water inlet 101 is arranged at the upper part, the water outlet 102 is arranged at the lower part, and the sewage from which the solid dirt is separated through filtration flows into the treatment box 1 and is discharged through the water outlet 102. Meanwhile, in order to facilitate the regular cleaning of solid dirt in the storage box 2, a door 201 may be provided on the storage box 2, and when the door 201 is closed, the solid dirt may be stored in the storage box 2, and after the door 201 is opened, the solid dirt therein may be cleaned out, so as to ensure the continuous use of the whole device.

A filter plate 4 is arranged between the upper part of the vertical plate 3 and the treatment box 1, and filter holes are uniformly arranged on the filter plate 4, and the aperture of the filter holes is determined according to the volume of solid dirt to be removed in the sewage; the water inlet 101 is positioned above the filter plate 4, and the water outlet 102 is positioned below the filter plate 4, so that the sewage with solid dirt can flow into the lower part of the treatment box 1 after the filtering treatment of the lower filter plate 4 after entering the treatment box 1 through the water inlet 101, and is discharged through the water outlet 102 below. In addition, in order to facilitate the automatic spreading of the sewage on the filter plate 4, as shown in fig. 1, the filter plate 4 may be obliquely disposed in the treatment tank 1, and one end close to the water inlet 101 is higher than the other end, and the sewage flowing in through the water inlet 101 may automatically flow to the lower end along the obliquely disposed filter plate 4, thereby being automatically spread on the filter plate 4, and fully utilizing the filtering area of the filter plate 4. Moreover, by replacing the filter plates 4 with different apertures, the device of the embodiment can be applied to different stages of sewage treatment, thereby achieving the purpose of purifying water and removing solid dirt.

After the sewage is filtered by the filter plate 4, solid dirt can be trapped on the filter plate 4, and if the dirt is not timely treated, filter holes can be blocked, so that the filtering efficiency is reduced, and the long-time continuous operation of the whole device is not facilitated. Therefore, in order to solve this problem, as shown in fig. 1, a scraper 5 may be disposed above the filter plate 4 in the treatment tank 1, and the scraper 5 is as wide as the filter plate 4 to completely scrape off the solid dirt trapped on the filter plate 4 and prevent the filter hole from being blocked. The treatment box 1 is internally provided with a first guide rail 10 and a second guide rail 11 which are connected with each other and are positioned at one side of the scraping plate 5, and the first guide rail 10 and the second guide rail 11 which are connected extend from a water inlet 101 of the treatment box 1 to the vertical plate 3; the scraping plate 5 is provided with a limiting block, and the limiting block is arranged in the first guide rail 10 and can slide in the first guide rail 10 and the second guide rail 11. The scraper 5 is connected with a moving mechanism, drives the scraper 5 to move along the first guide rail 10 and the second guide rail 11 through a limiting block, and scrapes solid dirt on the filter plate 4 in the moving process of the scraper 5. Meanwhile, the first guide rail 10 is obliquely arranged, one end close to the water inlet 101 is higher than the other end, the second guide rail 11 is obliquely arranged and parallel to the filter plate 4, and the absolute value of the slope of the first guide rail 10 is larger than that of the second guide rail 11. The guide rail I10 and the guide rail II 11 which are designed in the way ensure that when the scraper 5 moves along the guide rail I10, the distance between the scraper and the filter plate 4 is larger and the scraper is not contacted with the filter plate 4, so that sewage can smoothly flow and spread on the filter plate 4 after entering the treatment box 1 from the water inlet 101; when the scraper 5 moves along the second guide rail 11, the distance between the scraper 5 and the filter plate 4 becomes smaller, and the scraper can contact with the upper surface of the filter plate 4, so that the scraper 5 can scrape off solid dirt on the filter plate 4.

The moving mechanism for driving the scraper 5 to move includes a mounting box 103 disposed at the top of the processing box 1, and a screw 601 is mounted in the mounting box 103, where the screw 601 extends along the direction from the water inlet 101 to the storage box 2, as shown in fig. 1. The mounting box 103 is provided with a baffle plate 104 at one end of a screw 601 near the water inlet 101, the screw 601 is mounted on the baffle plate 104 through a bearing and penetrates through the baffle plate 104 to be connected with an output shaft of a motor 602, and the motor 602 drives the screw to rotate; the other end of the screw 601 is also mounted on the mounting box 103 by a bearing. The screw 601 is connected with a moving block 603 in a threaded manner, a limiting rod 604 is arranged in the mounting box 103, the limiting rod 604 is arranged in parallel with the screw 601, and two ends of the limiting rod 604 are respectively fixed on the mounting box 103. When the motor 602 is started, the screw 601 is driven to rotate, and the moving block 603 cannot rotate under the limiting action of the limiting rod 604 and can only move along the length direction of the screw 601. The bottom of the moving block 603 is connected with an automatic telescopic mechanism I, as shown in FIG. 2, which comprises a first housing 701, a first movable column 702 is arranged in the first housing 701, a first spring 703 is connected between the first housing 701 and the first movable column 702, and the first movable column 702 is connected with the scraper 5. When the limiting block is arranged at the higher end of the first guide rail 10, the distance between the scraping plate 5 and the filter plate 4 is larger, and the limiting block is not contacted with the filter plate 4; when the limiting block moves in the first guide rail 10, the first spring 703 is continuously compressed, the distance between the scraping plate 5 and the filter plate 4 is gradually reduced, and when the limiting block enters the second guide rail 11, the first spring 703 is further compressed and enables the scraping plate 5 to contact the filter plate 4; and then the distance between the scraping plate 5 and the filter plate 4 is basically kept unchanged in the process that the limiting block moves in the guide rail II 11 which is arranged in parallel with the filter plate 4, so that solid dirt on the filter plate 4 is pushed to move towards the storage box 2.

Further, in order to meet the requirement that when sewage is filtered on the filter plate 4, the sewage does not flow into the storage box 2, and when the scraper 5 is required to scrape the solid sewage into the storage box 2, the solid sewage can smoothly enter the storage box 2, so that when the filter plate 4 is connected on the vertical plate 3, the upper surface of the connecting end of the filter plate 4 is positioned at the top surface of the vertical plate 3, namely, no height difference exists between the connecting end of the filter plate 4 and the top surface of the vertical plate 3, meanwhile, as shown in fig. 1, a telescopic baffle 12 and a groove for accommodating the telescopic baffle 12 are arranged at the top of the vertical plate 3, and when the filter plate 4 filters the sewage, the telescopic baffle 12 extends out of the groove to block the sewage and prevent the sewage from flowing into the storage box 2 along the filter plate 4; when the scraper 5 scrapes the solid dirt, the scraper 5 moves to the upright post, and the baffle can be retracted into the groove, so that the scraper 5 can scrape the solid dirt into the storage box 2.

Specifically, the telescopic manner of the telescopic baffle 12 can be realized by the following structure: as shown in fig. 1 and 3, the middle part of the telescopic baffle 12 is connected with a lifting plate 13, the lifting plate 13 is positioned at the connecting end of the filter plate 4 and the vertical plate 3 and vertically passes through the middle part of the filter plate 4, and the filter plate 4 is exposed above the lifting plate 13. The bottom of the lifting plate 13 is connected with a second automatic telescopic mechanism arranged in the processing box 1, as shown in fig. 4, the second automatic telescopic mechanism comprises a second shell 801, a second movable column 802 is arranged in the second shell 801, a second spring 803 is connected between the second shell 801 and the second movable column 802, and the second movable column 802 is connected with the lifting plate 13. When the scraping plate 5 moves towards the direction of the storage box 2 under the drive of the moving block 603, after the limiting block enters the guide rail II 11, the scraping plate 5 contacts the upper surface of the filter plate 4, so that solid dirt is pushed to move towards the direction of the storage box 2; along with the movement of the scraper 5, when the scraper passes through the lifting plate 13, the lifting plate 13 is pressed downwards, and the lifting plate 13 immediately drives the movable column II 802 to compress the spring II 803, so that the lifting plate 13 moves downwards, and then drives the telescopic baffle 12 to retract into the groove of the vertical plate 3, so that the solid dirt can be smoothly pushed into the storage box 2 for storage.

Working principle:

when the device of the embodiment is used, the device is connected with an external sewage pipe through the water inlet 101, sewage flows into the treatment box 1 and flows through the filter plate 4 below, the filter plate 4 filters the sewage along with the flowing spreading of the sewage on the filter plate 4, solid dirt in the sewage is trapped above the filter plate 4, and the filtered sewage flows into the lower part of the treatment box 1 through the filter hole and is discharged out of the device through the water outlet 102. And the telescopic baffle 12 extends out of the groove of the vertical plate 3 so as to block the sewage remained on the filter plate 4 and prevent the sewage from flowing into the storage box 2.

After the sewage is filtered by the filter plate 4, the motor 602 is started to drive the screw 601 to rotate, and the moving block 603 can not rotate along with the rotation due to the limitation of the limiting rod 604 and can only move along the screw 601 towards the storage box 2. When the moving block 603 moves, the first housing 701 moves together with the moving block 603, and the squeegee 5 connected to the first movable column 702 in the first housing 701 also moves together in the direction of the storage box 2. In the moving process of the scraper 5, the movement track of the scraper 5 passes through the first guide rail 10 and the second guide rail 11 successively under the action of the limiting block, and when the scraper 5 moves along the first guide rail 10, the scraper 5 is limited by the first guide rail 10, so that the scraper 5 continuously compresses the first spring 703 between the first housing 701 and the first movable column 702 until the position of the second guide rail 11, and the first spring 703 is in a continuously compressed state, and the distance between the scraper 5 and the filter plate 4 is larger in the process, so that the scraper 5 cannot contact with the filter plate 4. When the scraper 5 moves to the second guide rail 11, the distance between the scraper 5 and the filter plate 4 is further reduced, so that the scraper 5 contacts the upper surface of the filter plate 4; when the scraper 5 continues to move along the second guide rail 11, the second guide rail 11 is arranged in parallel with the filter plate 4, so that the first spring 703 is not compressed any more, and the scraper 5 moves on the upper surface of the filter plate 4, thereby pushing the solid dirt toward the storage box 2. In addition, the bottom of the scraping plate 5 can be provided with a brush, a steel brush or a silica gel soft strip and the like which are convenient for being attached to the material of the filter plate 4 so as to improve the slag removal effect of the filter plate 4.

When the scraper 5 moves to the lifting plate 13, the part of the lifting plate 13 exposed out of the upper surface of the filter plate 4 is pressed downwards, in the process, the telescopic baffle 12 connected with the lifting plate 13 is also retracted into the groove of the vertical plate 3, when the scraper 5 moves to the vertical plate 3, the lifting plate 13 is completely pressed into the filter plate 4, and the telescopic baffle 12 at the moment is also retracted into the groove completely, so that the scraper 5 can continuously push solid dirt into the storage box 2 for collection. Meanwhile, one surface of the bottom of the scraping plate 5, which faces the water inlet 101, can be designed into an upturned arc shape, so that the lifting plate 13 can be conveniently pressed downwards when passing through the lifting plate 13. Subsequently, the motor 602 drives the screw 601 to rotate reversely, so that the scraper 5 moves back to the original position, thereby completing one-time sewage filtration and solid dirt cleaning. In order to avoid that the device cannot continuously operate due to excessive storage amount of solid dirt in the storage tank 2, the door 201 of the storage tank 2 can be opened periodically to clean out the solid dirt.

The device of this embodiment has overcome the technical problem that the filter 4 that current solid-liquid separation device exists blocks up, particulate matter and suspended solid's removal efficiency and effect are relatively poor. Through scraper blade 5, can be high-efficient, in time with the solid form filth that holds back on filter 4 push away to storage case 2, avoid debris to pile up on filter 4 and block up the filtration pore, improved the filtration efficiency of filter 4, reduced the frequency of manual cleaning filter 4, can realize solid-liquid separation device's long-term operation.

Example 2

On the basis of embodiment 1, as shown in fig. 1 and 5, the treatment tank 1 is further provided with a purging mechanism, the purging mechanism comprises two symmetrically arranged cylinders 901, piston rods of the cylinders 901 are connected with purging pipes 902, the purging pipes 902 extend along the direction from the water inlet 101 to the storage tank 2, and the piston rods of the two cylinders 901 respectively drive the two purging pipes 902 to move along the direction perpendicular to the purging pipes 902; the purge pipe 902 is located below the filter plate 4 and is provided with purge holes 9021 towards one side of the filter plate 4, one end of the purge pipe 902 located outside the treatment box 1 is provided with an air inlet 9022, the air inlet 9022 is connected with an air supply device, and the process box 1 can be purged with compressed air, nitrogen, ozone and other gases according to the property of sewage, so that sterilization, disinfection and oxidation treatment of solid dirt can be synchronously completed.

When the sewage is filtered, along with the movement of the scraping plate 5, the starting cylinder 901 drives the two purging pipes 902 to reciprocate from two sides of the filtering plate 4 to the center, simultaneously, air is supplied to the purging pipes 902 through the air supply device, the filtering plate 4 is purged through the purging holes 9021, so that the solid dirt of small particles embedded in the filtering holes and intercepted by the filtering plate 4 is separated from the filtering plate 4 in the purging process, is suspended above the filtering plate 4, and is finally pushed into the storage box 2 together with the solid dirt trapped on the filtering plate 4 through the scraping plate 5. After the purging is finished, the cylinder 901 drives the purging pipe 902 to return to the two sides of the filter plate 4, and the reciprocating purging of the filter plate 4 is completed. In addition, in order to realize the automatic control of the device, the motor 602, the cylinder 901 and the air supply system may be electrically connected to the controller 14, respectively, to automatically control the start and stop of the motor 602 and the opening and closing of the purge mechanism.

In the embodiment, the purge pipe 902 is used for completing back flushing of the filter plate 4, and compared with the existing back flushing mode with water, the impurity water content is lower, and the subsequent scum treatment difficulty is greatly reduced.

Although the present utility model has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present utility model is not limited thereto. Various equivalent modifications and substitutions may be made in the embodiments of the present utility model by those skilled in the art without departing from the spirit and scope of the present utility model, and it is intended that all such modifications and substitutions be within the scope of the present utility model/be within the scope of the present utility model as defined by the appended claims. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (9)

1. The device for separating the solid from the liquid of the sewage is characterized by comprising a treatment box (1), wherein a storage box (2) is arranged on one side of the treatment box (1), the treatment box (1) is communicated with the storage box (2), a water inlet (101) and a water outlet (102) are formed in one end, far away from the storage box (2), of the treatment box (1), and a door (201) is arranged on the storage box (2); a vertical plate (3) is arranged between the treatment box (1) and the storage box (2), a filter plate (4) is arranged between the upper part of the vertical plate (3) and the treatment box (1), a water inlet (101) is positioned above the filter plate (4), and a water outlet (102) is positioned below the filter plate (4); a scraping plate (5) is arranged above the filter plate (4) in the treatment box (1), a first guide rail (10) and a second guide rail (11) which are connected are arranged on one side of the scraping plate (5) in the treatment box (1), and the first guide rail (10) and the second guide rail (11) which are connected extend to the vertical plate (3) from a water inlet (101) of the treatment box (1); a limiting block is arranged on the scraping plate (5), the limiting block is arranged in the first guide rail (10), and the scraping plate (5) is connected with a moving mechanism, so that the scraping plate (5) moves along the first guide rail (10) and the second guide rail (11) through the limiting block; the scraping plate (5) is not contacted with the filter plate (4) when moving along the first guide rail (10), and is contacted with the upper surface of the filter plate (4) when moving along the second guide rail (11); the top of the vertical plate (3) is provided with a telescopic baffle plate (12) and a groove for accommodating the telescopic baffle plate (12), and when the scraping plate (5) moves to the vertical column, the baffle plate is retracted into the groove.

2. The device for solid-liquid separation of sewage according to claim 1, wherein the moving mechanism comprises a screw (601) arranged at the top of the treatment tank (1), the screw (601) is driven to rotate by a motor (602), a moving block (603) is connected to the screw (601) in a threaded manner, a limit rod (604) is arranged on the moving block (603), and the limit rod (604) is arranged in parallel with the screw (601); the bottom of the moving block (603) is connected with an automatic telescopic mechanism I, and the automatic telescopic mechanism I is connected with the scraping plate (5).

3. The device for solid-liquid separation of sewage according to claim 2, wherein the first automatic telescopic mechanism comprises a first housing (701), a first movable column (702) is arranged in the first housing (701), a first spring (703) is connected between the first housing (701) and the first movable column (702), and the first movable column (702) is connected with the scraper (5).

4. The device for solid-liquid separation of sewage according to claim 2, wherein a partition plate (104) is arranged between the motor (602) and the moving block (603), and both ends of the screw (601) are respectively arranged on the partition plate (104) and the treatment tank (1) through bearings.

5. The apparatus for solid-liquid separation of sewage according to claim 4, wherein both ends of the limit bar (604) are fixed to the partition plate (104) and the treatment tank (1).

6. The device for solid-liquid separation of sewage according to claim 1, wherein the first guide rail (10) is obliquely arranged and one end close to the water inlet (101) is higher than the other end, and the second guide rail (11) is arranged in parallel with the filter plate (4).

7. The apparatus for solid-liquid separation of sewage according to claim 6, characterized in that the filter plate (4) is disposed obliquely and has one end higher than the other end near the water inlet (101); the absolute value of the slope of the first guide rail (10) is larger than that of the second guide rail (11).

8. The device for solid-liquid separation of sewage according to claim 1, characterized in that the telescopic baffle (12) is connected with a lifting plate (13), the lifting plate (13) vertically passes through the filter plate (4) and the filter plate (4) is exposed above; the bottom of the lifting plate (13) is connected with an automatic telescopic mechanism II arranged in the processing box (1), the automatic telescopic mechanism II comprises a housing II (801), a movable column II (802) is arranged in the housing II (801), a spring II (803) is connected between the housing II (801) and the movable column II (802), and the movable column II (802) is connected with the lifting plate (13).

9. The device for solid-liquid separation of sewage according to claim 1, wherein the treatment tank (1) is further provided with a purging mechanism, the purging mechanism comprises two symmetrically arranged cylinders (901), piston rods of the cylinders (901) are connected with purging pipes (902), the purging pipes (902) extend along the direction from the water inlet (101) to the storage tank (2), and piston rods of the two cylinders (901) respectively drive the two purging pipes (902) to move along the direction perpendicular to the purging pipes (902); the purge pipe (902) is located below the filter plate (4), a purge hole (9021) is formed in one face, facing the filter plate (4), of the purge pipe (902), and the purge pipe (902) is connected with an air supply device.