Sewage treatment device

Abstract

The invention discloses a sewage treatment device in the technical field of sewage treatment, which comprises two bases, each base is provided with a water inlet pipe and a water outlet pipe, a filter cartridge is connected between the water inlet pipe and the water outlet pipe, and the water inlet pipe and the water outlet pipe are rotationally connected with the corresponding bases. The sleeves rotate mutually, two ends of each sleeve are fixedly connected with the water inlet pipe and the water outlet pipe respectively, and filter screen plates with gradually-decreased apertures are arranged in the sleeves. The two ends of a fixing block on the outer wall of the sleeve are connected with stop levers, the stop levers exceed the ends of the fixing block and are in the same direction with the sleeve, and the fixing block is spirally distributed. The sewage treatment device provided by the invention can obviously reduce the blockage clearing frequency.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a sewage treatment device. Background Art

[0002] Untreated sewage contains a large amount of pollutants, such as suspended matter, organic matter, heavy metals, etc. Filtration can effectively reduce solid impurities in sewage and reduce the load of subsequent treatment processes. For agricultural sewage treatment, the main purpose is to remove suspended matter, dust and other particulate matter in sewage; for this type of sewage filtration, the current main method is to set up multiple layers of filter screens with different apertures in the filter cartridge, or to combine filter screens with filter cotton to filter sewage.

[0003] The above filtering method can better intercept suspended matter and particulate matter, but because the filter holes of the filter net and the gaps of the filter cotton are easily clogged, they need to be frequently taken out for clearing, which greatly increases the intensity of the clearing work. Summary of the invention

[0004] The present invention aims to provide a sewage treatment device to reduce the frequency of clearing and blocking.

[0005] A sewage treatment device in the present scheme comprises two bases, on which an inlet pipe and an outlet pipe are respectively provided, and a filter cartridge is fixedly connected between the inlet pipe and the outlet pipe; the inlet pipe and the outlet pipe are both rotatably connected to the corresponding bases; the filter cartridge is composed of a plurality of sleeves which pass through in the axial direction, the plurality of sleeves are rotatably connected to each other, the sleeves at both ends are respectively fixedly connected to the inlet pipe and the outlet pipe, a plurality of filter screens are provided in the sleeves, and the aperture of the filter screens gradually decreases from the inlet pipe to one end of the outlet pipe; a fixing block is fixedly connected to the outer wall of the sleeve, a baffle rod is fixedly connected to both ends of the fixing block, an end of the baffle rod away from the fixing block exceeds its corresponding end, the extension direction of the baffle rod is consistent with the length direction of the sleeve, and the plurality of fixing blocks are spirally distributed relative to the filter cartridge; a baffle block which blocks the baffle rod adjacent to it is provided on the top of the base connected to the outlet pipe; a driving motor which drives the inlet pipe to rotate is installed on the base connected to the inlet pipe.

[0006] The working principle and beneficial effects of this solution are as follows: sewage enters the filter cartridge from the water inlet pipe, and when the sewage passes through multiple filter screens with gradually decreasing apertures, suspended matter and particulate matter are gradually intercepted and filtered. The filtered water is discharged through the outlet pipe. In this process, since the sleeves are connected to each other in rotation and the fixed blocks are distributed in a spiral shape, when the driving motor rotates forward to drive the water inlet pipe to rotate, the sleeve can rotate slowly during the filtering process through the connection relationship between the sleeves and the cooperation between the stopper and the stopper until the stopper near the outlet pipe is against the stopper; then the driving motor can reverse to drive the sleeve to rotate in the other direction, and this cycle repeats; since the filter screen will also rotate when the sleeve rotates, the risk of clogging of the filter screen can be reduced. In addition, after the sewage has been filtered for a certain period of time, the driving motor can be started again to realize the rotation of the filter screen, so that some of the suspended matter or particulate matter in the filter holes can be separated from the filter holes, reducing the frequency of clearing and clogging.

[0007] Furthermore, a driving gear is installed on the output shaft of the driving motor, and a driven gear meshing with the driving gear is installed on the water inlet pipe. Through gear transmission, the power of the driving motor can be stably and accurately transmitted to the water inlet pipe, so that the water inlet pipe rotates smoothly, thereby ensuring the stable rotation of the sleeve.

[0008] Furthermore, the water inlet pipe and the water outlet pipe are both rotatably connected with a connecting ring, which plays a role of supporting and assisting the rotation, so as to prevent the water inlet pipe and the water outlet pipe from driving the water delivery pipeline connected thereto to rotate during the rotation process.

[0009] Furthermore, the sleeve is provided with a notch for taking out the filter screen inside, the notch is located on the opposite side of the fixed block, and a hatch is hinged at the notch. When the filter screen needs to be maintained or replaced, the hatch can be opened quickly and conveniently to directly take out the filter screen in the sleeve. More importantly, through the setting of the hatch, the filter screen can be cleared with sewage. The specific operation is: when clearing the filter screen in a sleeve, the hatch of the sleeve is turned to the bottom and opened, while the other hatches are closed. When the sewage passes through, the suspended matter on the filter screen in the sleeve can be quickly washed down. Particles and the like can be avoided from disassembling and assembling the filter screen.

[0010] Furthermore, filter cotton is also arranged in the sleeve, and the filter cotton is close to the water outlet pipe. After being filtered by the multi-layer filter screen, the filter cotton can further adsorb and intercept tiny impurities in the sewage.

[0011] Furthermore, the filter screen is slidably connected in the sleeve, and adjacent filter screens are connected by springs. The base is provided with an adjustment component for squeezing and loosening the filter screen in the sleeve. During normal filtration, the spring keeps the filter screens at a certain distance to facilitate the smooth passage of sewage. When clearing is required, the adjustment component can squeeze the filter screen to make adjacent filter screens close to each other. Under the action of the spring, the blocked impurities are squeezed and loosened and fall off, which is convenient for cleaning.

[0012] Furthermore, the adjustment assembly includes an adjustment motor, a capstan, a guide wheel and a pull rope. The adjustment motor mounting seat is at the top of the base connected to the water outlet pipe, the capstan is mounted on the output shaft of the adjustment motor, there are two guide wheels, one of which is mounted in a connecting ring, the top wall of the connecting ring is provided with a through hole for the pull rope to pass through, and the other guide wheel is mounted on the base and is located directly above the aforementioned guide wheel; one end of the pull rope is fixedly connected to the filter screen plate adjacent to the water inlet pipe, and the other end of the pull rope passes through the filter screen plate and the filter cotton and is fixedly connected to the capstan after passing through two guide wheels. By driving the capstan to rotate by the adjustment motor, the retraction and release of the pull rope can be accurately controlled. Under the guidance of the guide wheel, the pull rope can stably apply tension to the filter screen plate to achieve the squeezing operation of the filter screen plate and the filter cotton.

[0013] Furthermore, a fixing frame is provided in the sleeve, the fixing frame is close to the water inlet pipe, and the end of the pull rope away from the winch is fixedly connected to the fixing frame. The fixing frame provides a stable fulcrum for the pull rope, so that the pull rope can evenly apply tension to the filter screen during the pulling process, thereby avoiding deformation or damage of the filter screen due to uneven tension.

[0014] Furthermore, the two opposite ends of the filter cotton are fixedly connected with protective mesh plates. The protective mesh plates on both sides make the position of the filter cotton in the filter cylinder more fixed, and it is not easy to be displaced or curled, thereby ensuring the filtering effect and stability of the filter cotton. At the same time, the protective mesh plates on both ends can play a certain protective role on the filter cotton, preventing large particles of impurities in the sewage from directly impacting the filter cotton, reducing the possibility of damage to the filter cotton due to external impact, and improving the durability of the filter cotton. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a partial cross-sectional view of a sewage treatment device according to Embodiment 1 of the present invention;

[0016] Figure 2 This is a partial cross-sectional view of a sewage treatment device according to Example 2 of the present invention. DETAILED DESCRIPTION

[0017] The following is further described in detail through specific implementation methods:

[0018] The figure marks in the drawings of the specification include: base 1, driven gear 2, connecting ring 3, driving gear 4, driving motor 5, water inlet pipe 6, fixing block 7, gear lever 8, sleeve 9, filter screen 10, hatch 11, handle 12, block 13, water outlet pipe 14, protective screen 15, filter cotton 16, spring 17, fixing frame 18, pull rope 19, guide wheel 20, winch 21.

[0019] Embodiment 1 is basically as attached Figure 1 As shown: A sewage treatment device, including two bases 1, on which a water inlet pipe 6 and a water outlet pipe 14 are rotatably connected respectively, and the ends of the water inlet pipe 6 and the water outlet pipe 14 away from the base 1 are rotatably connected with a connecting ring 3; a filter cartridge is fixedly connected between the water inlet pipe 6 and the water outlet pipe 14; the filter cartridge is composed of five sleeves 9 that pass through the axial direction, and the five sleeves 9 are rotatably connected to each other, and the sleeves 9 at both ends are fixedly connected to the water inlet pipe 6 and the water outlet pipe 14 respectively, and filter cotton 16 and multiple filter screens 10 are arranged in the sleeves 9, and the filter cotton 16 is close to the outlet pipe, and the filter hole diameters of the multiple filter screens 10 gradually decrease from the water inlet pipe 6 to the end of the water outlet pipe 14; fixed blocks are fixedly connected to the outer wall of the sleeve 9 7. Both ends of the fixed block 7 are integrally formed with a stop rod, and one end of the stop rod away from the fixed block 7 exceeds its corresponding end, and the extension direction of the stop rod is consistent with the length direction of the sleeve 9. The five fixed blocks 7 are spirally distributed relative to the filter cartridge, and a stop block 13 is provided on the top of the base 1 connected to the water outlet pipe 14 to block the stop rod 8 adjacent to it; the sleeve 9 is provided with a notch for taking out the internal filter screen plate 10, and the notch is located on the opposite side of the fixed block 7, and a hatch 11 is hinged at the notch, and a handle 12 is installed on the outer wall of the hatch 11; a driving motor 5 is installed on the base 1 connected to the water inlet pipe 6, and a driving gear 4 is installed on the output shaft of the driving motor 5, and a driven gear 2 meshing with the driving gear 4 is installed on the water inlet pipe 6.

[0020] The specific implementation process is as follows: First, connect the water inlet pipe 6 to the sewage source, and properly connect the water outlet pipe 14 to the subsequent treatment equipment or drainage pipe. The sewage flows from the water inlet pipe 6 into the filter cartridge. When passing through the filter screen plate 10 with a gradually decreasing aperture in the sleeve 9, large particles of suspended solids are first intercepted by the filter screen plate 10 with a larger aperture near the water inlet pipe 6. As the sewage flows toward the water outlet pipe 14, smaller particles are successively intercepted by the subsequent filter screen plates 10 with smaller apertures. The sewage filtered by the multi-layer filter screen plates 10 then passes through the filter cotton 16, which further absorbs and intercepts tiny impurities in the sewage. Finally, the filtered water is discharged through the water outlet pipe 14.

[0021] When the filter screen 10 needs to be inspected or maintained, the hatch 11 can be opened by holding the handle 12 on the outer wall of the hatch 11. Due to the setting of the gap, the filter screen 10 in the sleeve 9 can be directly seen and taken out for cleaning, replacement or inspection. During normal operation, if the filtering effect is found to be reduced, the hatches 11 of other sleeves 9 can be closed, and only the hatch 11 of the sleeve 9 that needs to be cleared can be turned to the bottom and opened, and the flushing force of the sewage can be used to quickly flush down the suspended matter and particulate matter on the filter screen 10 in the sleeve 9, avoiding the cumbersome disassembly and assembly operations of the filter screen 10.

[0022] The driving motor 5 can also be started during the whole process of sewage filtration. The driving motor 5 rotates forward to drive the driving gear 4 to rotate. The driving gear 4 meshes with the driven gear 2 on the water inlet pipe 6, so that the water inlet pipe 6 starts to rotate. The rotation of the water inlet pipe 6 drives the entire filter cartridge to rotate through its fixed connection with the sleeve 9 at one end of the filter cartridge. The specific process is: the water inlet pipe 6 drives the sleeve 9 fixedly connected to it to rotate until the gear rod 8 on the sleeve 9 abuts against the gear rod 8 of the sleeve 9 adjacent to it, driving two sleeves 9 to rotate, and then abutting against the gear rod 8 of the next sleeve 9, driving three sleeves 9 to rotate, and so on, until the gear rod 8 close to the water outlet pipe 14 abuts against the block 13. Then the driving motor 5 reverses, and drives the five sleeves 9 to rotate in the opposite direction in turn, until the gear rod 8 close to the water outlet pipe 14 abuts against the other side of the block 13.

[0023] Embodiment 2 is basically as attached Figure 2 As shown, the difference between it and embodiment 1 is that: the opposite ends of the filter cotton 16 are fixedly connected with the protective mesh plate 15; the sleeve 9 is slidably connected with the fixing frame 18, and the fixing frame 18 is close to the water inlet pipe 6; the filter screen plate 10 is slidably connected in the sleeve 9, and the adjacent filter screen plates 10 are connected by springs 17. The base 1 is provided with an adjustment component for squeezing and loosening the filter screen plate 10 in the sleeve 9, specifically: the adjustment component includes an adjustment motor, a winch 21, a guide wheel 20 and a pull rope 19, and the adjustment motor mounting seat is connected to the water outlet pipe 14 The top of the base 1 is a capstan 21 mounted on the output shaft of the adjusting motor. There are two guide wheels 20, one of which is mounted in a connecting ring 3 connected to the water outlet pipe 14. The top wall of the connecting ring 3 is provided with a through hole for the pull rope 19 to pass through. The other guide wheel 20 is mounted on the base 1 and is located directly above the aforementioned guide wheel 20; one end of the pull rope 19 is fixedly connected to the fixing frame 18, and the other end of the pull rope 19 passes through the filter screen plate 10, the protective screen plate 15 and the filter cotton 16 and is fixedly connected to the capstan 21 after passing through the two guide wheels 20.

[0024] The specific implementation process is as follows: It is similar to the use process of Example 1, except that: when it is necessary to clear the filter screen plate 10 and the filter cotton 16, the adjustment motor is started. The adjustment motor drives the winch 21 to rotate, and the winch 21 retracts and releases the pull rope 19. Under the guidance of the two guide wheels 20, one end of the pull rope 19 is fixed to the fixed frame 18 close to the water inlet pipe 6, thereby generating a pulling force on the fixed frame 18, and the fixed frame 18 drives the filter screen plate 10 connected thereto to move in the direction close to the water outlet pipe 14. Since the adjacent filter screen plates 10 are connected by springs 17, under the action of the pulling force of the pull rope 19, the adjacent filter screen plates 10 are close to each other, the spring 17 is compressed, and the impurities blocked in the filter holes of the filter screen plate 10 are squeezed and loosened and fall off, falling into the bottom of the sleeve 9. At the same time, the pulling force of the pull rope 19 will also be transmitted to the protective mesh plates 15 at both ends of the filter cotton 16, so that the filter cotton 16 is squeezed to a certain extent, and the impurities attached to the filter cotton 16 will also be shaken off or loosened, thereby realizing the unblocking operation of the filter cotton 16.

[0025] When the blockage is cleared, the motor is adjusted to reverse, the pull rope 19 is loosened, and the filter screen plate 10 is restored to the original spacing position under the restoring force of the spring 17 so as to continue the sewage filtering work.

[0026] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A sewage treatment device, comprising two bases, each of which is provided with an inlet pipe and an outlet pipe, and a filter cartridge is fixedly connected between the inlet pipe and the outlet pipe; characterized in that: The water inlet pipe and the water outlet pipe are both rotatably connected to the corresponding bases; the filter cartridge is composed of a plurality of sleeves that pass through in the axial direction, and the plurality of sleeves are rotatably connected to each other, and the sleeves at both ends are fixedly connected to the water inlet pipe and the water outlet pipe respectively, and a plurality of filter screens are arranged in the sleeves, and the aperture of the filter screens gradually decreases from the water inlet pipe to one end of the water outlet pipe; a fixing block is fixedly connected to the outer wall of the sleeve, and a baffle rod is fixedly connected to both ends of the fixing block, and the end of the baffle rod away from the fixing block exceeds its corresponding end, and the extension direction of the baffle rod is consistent with the length direction of the sleeve, and the plurality of fixed blocks are distributed in a spiral shape relative to the filter cartridge; a baffle block for blocking the baffle rod adjacent to it is arranged on the top of the base connected to the water outlet pipe; a driving motor for driving the water inlet pipe to rotate is installed on the base connected to the water inlet pipe.

2. A sewage treatment device according to claim 1, characterized in that: A driving gear is installed on the output shaft of the driving motor, and a driven gear meshing with the driving gear is installed on the water inlet pipe.

3. A sewage treatment device according to claim 2, characterized in that: The water inlet pipe and the water outlet pipe are both rotatably connected with connecting rings.

4. A sewage treatment device according to claim 3, characterized in that: The sleeve is provided with a notch for taking out the internal filter screen plate, the notch is located on the opposite side of the fixed block, and a hatch is hinged at the notch.

5. A sewage treatment device according to claim 4, characterized in that: Filter cotton is also arranged in the sleeve and is close to the water outlet pipe.

6. A sewage treatment device according to claim 5, characterized in that: The filter screen plates are slidably connected in the sleeve, and adjacent filter screen plates are connected via springs. The base is provided with an adjusting component for squeezing and loosening the filter screen plates in the sleeve.

7. A sewage treatment device according to claim 6, characterized in that: The adjusting assembly includes an adjusting motor, a winch, a guide wheel and a pull rope. The adjusting motor mounting seat is on the top of the base connected to the water outlet pipe, the winch is installed on the output shaft of the adjusting motor, there are two guide wheels, one of which is installed in a connecting ring, the top wall of the connecting ring is provided with a through hole for the pull rope to pass through, and the other guide wheel is installed on the base and is located directly above the aforementioned guide wheel; one end of the pull rope is fixedly connected to the filter screen plate adjacent to the water inlet pipe, and the other end of the pull rope passes through the filter screen plate and the filter cotton and is fixedly connected to the winch after passing through two guide wheels.

8. A sewage treatment device according to claim 7, characterized in that: A fixing frame is arranged in the sleeve, the fixing frame is close to the water inlet pipe, and one end of the pull rope away from the winch is fixedly connected to the fixing frame.

9. A sewage treatment device according to claim 8, characterized in that: The two opposite ends of the filter cotton are both fixedly connected with protective mesh plates.

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