Rotary drum type internal inflow grille cleaner

Abstract

The invention relates to the technical field of sewage treatment, in particular to a rotary drum type internal inflow grille cleaner which comprises an outer drum and two power rings which are located on the inner side of the outer drum and rotate, a grille part is arranged between the two power rings and composed of a plurality of fishing sets, and the fishing sets are used for fishing floating impurities in sewage; the fishing rod can retract on the sleeve after fishing impurities, the impurities on the fishing rod can be conveniently pushed to be separated from the fishing rod through the end of the sleeve, and therefore the impurities can conveniently fall off, the phenomenon that the impurities such as fibers and hair are wound on the fishing rod and are not prone to falling off is avoided, the impurities are prevented from being accumulated on the fishing rod, and the service life of the fishing rod is prolonged. And the impurity cleaning effect is improved, and long-time forward movement of equipment is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, in particular to a rotary drum type inner-flow screen decontamination machine. Background Art

[0002] With the acceleration of urbanization and the continuous development of industrial production, the protection and rational use of water resources have become particularly important. As one of the key links in environmental protection, the efficiency and effectiveness of sewage treatment directly affect environmental quality and public health. In the sewage treatment process, removing suspended solids in sewage is a crucial first step. This not only helps the effective operation of subsequent treatment processes, but also reduces wear on equipment and extends its service life.

[0003] In traditional sewage treatment methods, screen decontamination is an important step. It can intercept larger particles of suspended matter and floating objects, such as leaves and plastic bags, to prevent these debris from entering subsequent treatment units and causing blockage or damage. However, when traditional screen equipment uses the rake teeth on it to salvage impurities such as fibers and hair, such impurities are easily entangled on the rake teeth, making it difficult for the impurities to fall off. After long-term use, a large amount of impurities accumulate on the rake teeth, which can easily affect the normal use of the equipment. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a rotary drum type internal inlet grid dirt remover, the specific technical solution adopted by the present invention is: The present invention provides a rotary drum type inner inlet screen decontamination machine, comprising an outer drum and two rotating power rings located inside the outer drum, a screen portion being provided between the two power rings, the screen portion being composed of a plurality of salvaging groups for salvaging floating impurities in sewage; The salvage group includes a connecting rod with two ends respectively connected to the two power rings, a plurality of fixing seats arranged along the length direction of the connecting rod, and a sleeve installed on each of the fixing seats, each of the sleeves is slidably inserted with a salvage rod, and the salvage rod is used to salvage impurities; Wherein, a storage ramp for discharging materials is obliquely arranged in the outer cylinder.

[0005] In some embodiments of the present invention, the end of the fishing rod facing the axis of the outer cylinder is configured to be tapered, and the tapered shape is composed of a plurality of tapered surfaces and a plurality of flat surfaces, and the flat surfaces are configured to be in sliding contact with the inner wall of the casing.

[0006] In some embodiments of the present invention, each of the sleeves is provided with a plurality of side thrust parts, the number of which is consistent with the number of the conical surfaces at the end of the fishing rod, and the side thrust parts include a notch provided on the sleeve and a scraper rotatably mounted in the notch, and the scraper is connected to the sleeve by a spring piece; Wherein, the scraper is used to clean impurities on the corresponding conical surface.

[0007] In some embodiments of the present invention, the salvage group further includes a synchronization rod parallel to the connecting rod, and the synchronization rod is connected to each salvage rod on the connecting rod; The outer tube is provided with a driving portion for providing power for each fishing rod to reciprocate in the corresponding casing through the synchronization rod.

[0008] In some embodiments of the present invention, the pushing part includes two eccentric rings sleeved on the outside of the two power rings, the eccentric rings are eccentrically arranged relative to the corresponding power rings, the eccentric rings rotate in the outer cylinder, and the end of the synchronization rod is connected to the eccentric rings.

[0009] In some embodiments of the present invention, the pushing portion includes a guide groove opened on the inner wall of the outer cylinder, the guide groove consists of a first arc groove, a second arc groove and two transition grooves, the transition groove is used to connect the first arc groove and the second arc groove, and the radius of the first arc groove is not equal to the radius of the second arc groove, and the end of the synchronization rod is slidably arranged in the guide groove.

[0010] In some embodiments of the present invention, a water inlet is provided at one end of the outer tube, and a drainage channel is provided at the other end of the outer tube.

[0011] In some embodiments of the present invention, a plurality of arc-shaped guide bodies are arranged on the lower side of the inner part of the outer cylinder along the axis direction of the outer cylinder, the surface of the arc-shaped guide body is perpendicular to the axis of the outer cylinder, the surface of the arc-shaped guide body facing the water inlet is set as a curved surface, and the surface of the arc-shaped guide body facing the drainage channel is set as an inclined surface.

[0012] The beneficial effects of the present invention are: By enabling the salvage rod to retract on the casing after salvaging impurities, the end of the casing can be used to conveniently push the impurities on the salvage rod away from the salvage rod, thereby facilitating the removal of impurities, preventing impurities such as fibers and hair from being entangled on the salvage rod and difficult to fall off, and preventing impurities from accumulating on the salvage rod, thereby improving the impurity cleaning effect and ensuring long-term positive movement of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a schematic structural diagram of a grille portion in an embodiment of the present invention; Figure 3 is a schematic structural diagram of a salvage group according to an embodiment of the present invention; Figure 4 1 is a schematic diagram of a partial structure of a connecting rod in an embodiment of the present invention; Figure 5 2. It is a schematic structural diagram of an eccentric ring in an embodiment of the present invention; Figure 6 2 is a schematic structural diagram of a guide groove in an embodiment of the present invention; Figure 7 2 is a schematic diagram of a cross-sectional structure of an arc-shaped guide body in an embodiment of the present invention; Figure 8 is a schematic diagram of a fishing rod having two conical surfaces in an embodiment of the present invention; Figure 9 is a schematic diagram of a fishing rod having a conical surface in an embodiment of the present invention; Figure 10 Schematic diagram of a three-sided fishing rod in an embodiment of the present invention.

[0015] Reference numerals: 1. Outer tube; 2. Power ring; 3. Salvage group; 4. Connecting rod; 5. Fixed seat; 6. Casing; 7. Salvage rod; 8. Conical surface; 9. Scraper; 10. Shrapnel; 11. Synchronous rod; 12. Eccentric ring; 13. First arc groove; 14. Second arc groove; 15. Transition groove; 16. Water inlet; 17. Drainage channel; 18. Arc-shaped guide body; 19. Arc surface; 20. Inclined surface; 21. Storage ramp; 22. Leaf spring. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integrated connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances. This embodiment is written in a progressive manner.

[0019] like Figures 1 to 10 As shown, a rotary drum type inner inlet screen decontamination machine of the present invention comprises an outer drum 1 and two power rings 2 located inside the outer drum 1 and rotating. A screen portion is provided between the two power rings 2. The screen portion is composed of a plurality of salvage groups 3. The salvage groups 3 are used to salvage floating impurities in sewage. The salvage group 3 includes a connecting rod 4 connected to the two power rings 2 at both ends, a plurality of fixing seats 5 arranged along the length of the connecting rod 4, and a sleeve 6 installed on each fixing seat 5. A salvage rod 7 is slidably inserted into each sleeve 6, and the salvage rod 7 is used to salvage impurities. Among them, a storage ramp 21 for discharging materials is provided in an inclined manner inside the outer cylinder 1; In the present invention, the outer cylinder 1 is arranged horizontally, and the bottom of the outer cylinder 1 can be provided with a base, a frame or other similar structure to support the outer cylinder 1. The two power rings 2 on the inner side of the outer cylinder 1 are respectively arranged on both sides of the inner side of the outer cylinder 1 along the axis of the outer cylinder 1, and the power ring 2 can rotate in the outer cylinder 1. The axis of the power ring 2 can coincide with the axis of the outer cylinder 1 or deviate from each other. The specific position of the axis of the power ring 2 is not limited here. The rotational power of the power ring 2 can be provided by common structures such as motors and transmission wheels; the grid portion composed of several salvage groups 3 is a cylindrical structure, and the axis of the cylindrical structure coincides with the axis of the power ring 2. In this way, when the power ring 2 rotates, the grid portion will also rotate. Each salvage group 3 on the grid portion is used to salvage impurities in the sewage in the outer cylinder 1; the connecting rod 4 in the salvage group 3 is used to support multiple fixed seats 5, and the casing 6 can be connected to the fixed seat 5 by bolts, welding, etc., and the casing 6 is inclined toward the axis of the power ring 2, and the salvage rod 7 can slide back and forth in the casing 6; When in use, the sewage is introduced into the outer cylinder 1, and the water level is kept below the receiving ramp 21. The two power rings 2 drive the multiple salvage groups 3 to rotate synchronously. When the salvage group 3 moves to the sewage area, the end of the salvage rod 7 facing the axis of the power ring 2 extends on the casing 6. At this time, the end of the salvage rod 7 is used to salvage and collect impurities in the sewage. When the salvage group 3 leaves the sewage area, the salvage rod 7 carries the salvaged impurities out of the sewage. When the impurities move above the receiving ramp 21, the salvage rod 7 is in the casing 6. The end of the salvage rod 7 for salvaging impurities is retracted into the sleeve 6. At this time, the end of the sleeve 6 can push the impurities salvaged on the salvage rod 7 sideways, so that the impurities are separated from the salvage rod 7 and fall onto the storage ramp 21. In this way, the impurities on the salvage rod 7 are cleaned, and the accumulation of impurities caused by linear impurities such as fibers and hair being entangled on the salvage rod 7 and not easy to fall off is avoided, thereby improving the cleaning effect of the salvaged impurities. The impurities on the storage ramp 21 can naturally slide down along the inclined direction of the storage ramp 21 and be discharged from the outer cylinder 1. It should be noted that, in order to improve the salvage effect and prevent solid floating impurities from sliding on the salvage rod 7, the shapes of the salvage rod 7 and the casing 6 can both be set to be arc-shaped.

[0020] In some embodiments of the present invention, the end of the fishing rod 7 facing the axis of the outer tube 1 is configured to be tapered, and the tapered shape is composed of a plurality of tapered surfaces 8 and a plurality of flat surfaces, and the flat surfaces are used for sliding contact with the inner wall of the casing 6; like Figure 8 As shown, the fishing rod 7 has two conical surfaces 8 and two flat surfaces, as shown in FIG. Figure 9 As shown, the salvage rod 7 has one conical surface 8 and three flat surfaces, so that the end of the salvage rod 7 can be sharp, which is more conducive to the end of the salvage rod 7 being able to easily penetrate the suspended objects and prevent the garbage from slipping. Compared with the flat head design, the pointed head is easier to penetrate soft or elastic materials in high-speed water flow, ensuring that the debris is firmly hooked. In actual application, the salvage rod 7 can also adopt a hook-shaped pointed head shape to enhance the entanglement control of fiber objects, or adopt a rotatable needle to dynamically adjust the puncture angle to further optimize the salvage efficiency; when However, the specific number of conical surfaces 8 and flat surfaces on the salvage rod 7 can be determined according to actual circumstances, and all of them are within the scope of protection of this case. Since the casing 6 and the salvage rod 7 are designed in an arc shape, the flat surface on the cone can be an arc shape to facilitate use with the shape of the casing 6. The conical surface 8 on the salvage rod 7 is mainly used to form a conical shape at the end of the salvage rod 7, and the flat surface on the salvage rod 7 is mainly used to contact the inner wall of the casing 6. In this way, the end of the casing 6 can use the flat surface on the salvage rod 7 to push away impurities entangled on the salvage rod 7. It should be noted that the specific cross-sectional shape of the fishing rod 7 can be as follows: Figure 10 The triangle shown or Figure 8The quadrilateral shown can of course also be other shapes, which are all within the scope of protection of this case.

[0021] In some embodiments of the present invention, each sleeve 6 is provided with a plurality of side thrust parts, the number of which is the same as the number of the conical surfaces 8 at the end of the fishing rod 7. The side thrust parts include a notch formed on the sleeve 6 and a scraper 9 rotatably mounted in the notch. The scraper 9 is connected to the sleeve 6 by a spring 10. Among them, the scraper 9 is used to clean the impurities on the corresponding cone surface 8; In this case, since the conical end of the fishing rod 7 cannot contact the inner wall of the casing 6 when entering the casing 6, the end of the casing 6 cannot clean the debris and impurities on the conical surface 8. To solve this problem, the following method can be used: Figure 4 In the manner shown, the spring piece 10 can provide elastic thrust for the scraper 9, so that the scraper 9 contacts the surface of the salvage rod 7. When the conical surface 8 on the conical surface 8 moves to the position of the scraper 9, the spring piece 10 pushes the end of the scraper 9 to contact the conical surface 8, thereby using the scraper 9 to push away the debris on the conical surface 8, thereby achieving a comprehensive cleaning effect on the salvage rod 7.

[0022] In some embodiments of the present invention, the salvage group 3 further includes a synchronization rod 11 parallel to the connecting rod 4, and the synchronization rod 11 is connected to each salvage rod 7 on the connecting rod 4; The outer tube 1 is provided with a driving portion for providing power for each fishing rod 7 to reciprocate in the corresponding casing 6 through the synchronization rod 11; By providing the synchronization rod 11, multiple salvage rods 7 on the salvage group 3 can be controlled synchronously without having to control each salvage rod 7 individually, which can simplify the structure and operation mode; the driving part can provide power to each synchronization rod 11, so that the salvage rod 7 can reciprocate in the corresponding casing 6. In this way, during the process of the salvage rod 7 cyclically salvaging impurities, the salvage rod 7 can reuse the end of the casing 6 to clean and remove the impurities salvaged by the salvage rod 7.

[0023] In order to achieve the motion effect of the fishing rod 7, the structure of the pushing part can be as follows: Figure 5 In the embodiment shown, the pushing portion includes two eccentric rings 12 sleeved on the outside of the two power rings 2. The eccentric rings 12 are eccentrically arranged relative to the corresponding power rings 2. The eccentric rings 12 rotate in the outer cylinder 1, and the end of the synchronization rod 11 is connected to the eccentric rings 12. By utilizing the eccentric arrangement of the eccentric ring 12 and the power ring 2, when the power ring 2 and the eccentric ring 12 rotate, the distance between the power ring 2 and the eccentric ring 12 will periodically increase and decrease. When the distance between the power ring 2 and the eccentric ring 12 increases, the fishing rod 7 retracts on the casing 6. When the distance between the power ring 2 and the eccentric ring 12 decreases, the fishing rod 7 extends on the casing 6, thereby facilitating the provision of power for the movement of the fishing rod 7. The position where the distance between the power ring 2 and the eccentric ring 12 is the smallest is located at the bottom of the power ring 2, and the position where the distance between the power ring 2 and the eccentric ring 12 is the largest is located at the top of the power ring 2. To achieve the above movement, the synchronization rod 11 and the eccentric ring 12 need to be rotated and connected, the power ring 2 and the connecting rod 4 need to be rotationally connected, and the leaf spring 22 can provide elastic auxiliary support between the power ring 2 and the connecting rod 4 to avoid jamming.

[0024] In order to achieve the motion effect of the fishing rod 7, the structure of the pushing part can also be adopted as follows Figure 6 In the embodiment shown, the pushing portion includes a guide groove formed on the inner wall of the outer cylinder 1. The guide groove is composed of a first arcuate groove 13, a second arcuate groove 14, and two transition grooves 15. The transition groove 15 is used to connect the first arcuate groove 13 and the second arcuate groove 14. The radius of the first arcuate groove 13 is different from the radius of the second arcuate groove 14. The end of the synchronization rod 11 is slidably disposed in the guide groove. When the synchronization rod 11 moves in the first arc groove 13 and the second arc groove 14, since the radii of the first arc groove 13 and the second arc groove 14 are not equal, the distance between the synchronization rod 11 and the axis of the power ring 2 will change, thereby realizing the adjustment function of the position of the salvage rod 7. The transition groove 15 is mainly used to transition between the first arc groove 13 and the second arc groove 14. The one with the larger radius of the first arc groove 13 and the second arc groove 14 is located on the upper side, and the one with the smaller radius is located on the lower side.

[0025] In some embodiments of the present invention, Figure 1 As shown, a water inlet 16 is provided at one end of the outer tube 1, and a drainage channel 17 is provided at the other end of the outer tube 1; In the traditional method, sewage flows directly through the screen, and the screen salvages impurities in the sewage. This salvage method is a one-time salvage method. By limiting the water inlet position and the discharge position on the outer tube 1, the sewage is allowed to flow in the outer tube 1 along the axis of the outer tube 1. In this way, the sewage can be salvaged multiple times by several salvage groups 3 in a circular motion, thereby improving the salvage effect and realizing repeated salvage work within a single device.

[0026] In some embodiments of the present invention, Figure 2 and Figure 7As shown, a plurality of arc-shaped guide bodies 18 are arranged on the lower side of the inner part of the outer cylinder 1 along the axis direction of the outer cylinder 1. The surface of the arc-shaped guide body 18 is perpendicular to the axis of the outer cylinder 1. The surface of the arc-shaped guide body 18 facing the water inlet 16 is set as an arc surface 19, and the surface of the arc-shaped guide body 18 facing the drainage channel 17 is set as an inclined surface 20. By providing a plurality of arc-shaped guide bodies 18, the sewage flowing laterally on the lower side of the outer cylinder 1 can be diverted multiple times, so that the sewage passes through the working area of ​​the salvage group 3 multiple times, thereby facilitating the salvage group 3 to salvage impurities in the sewage and preventing the sewage from flowing away from the space between the bottom of the activity area of ​​the salvage group 3 and the bottom of the inner wall of the outer cylinder 1 and being unable to be effectively salvaged; the design of the arc surface 19 on the arc-shaped guide body 18 can effectively guide the sewage, reducing the flow resistance of the sewage while making the sewage flow toward the working area of ​​the salvage group 3, and the setting of the inclined surface 20 can prevent small particles of impurities in the sewage from accumulating on the back side of the arc-shaped guide body 18.

[0027] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A rotary drum type internal inlet grid decontamination machine, characterized in that: It includes an outer cylinder and two rotating power rings located inside the outer cylinder, a grid portion is provided between the two power rings, and the grid portion is composed of a number of salvage groups, which are used to salvage floating impurities in sewage; The salvage group includes a connecting rod with two ends respectively connected to the two power rings, a plurality of fixing seats arranged along the length direction of the connecting rod, and a sleeve installed on each of the fixing seats, each of the sleeves is slidably inserted with a salvage rod, and the salvage rod is used to salvage impurities; Wherein, a storage ramp for discharging materials is obliquely arranged in the outer cylinder.

2. A rotary drum type inner flow screen decontamination machine according to claim 1, characterized in that: The end portion of the fishing rod facing the axis of the outer cylinder is configured to be tapered, and the tapered shape is composed of a plurality of tapered surfaces and a plurality of flat surfaces, and the flat surfaces are configured to be in sliding contact with the inner wall of the casing.

3. A rotary drum type inner flow grille decontamination machine according to claim 2, characterized in that: Each of the sleeves is provided with a plurality of side thrust parts, the number of which is consistent with the number of the conical surfaces at the end of the salvage rod. The side thrust parts include a notch provided on the sleeve and a scraper rotatably mounted in the notch, and the scraper is connected to the sleeve by a spring piece; Wherein, the scraper is used to clean impurities on the corresponding conical surface.

4. The rotary drum type inner flow grille decontamination machine according to claim 3, characterized in that: The salvage group further includes a synchronization rod parallel to the connecting rod, and the synchronization rod is connected to each salvage rod on the connecting rod; The outer tube is provided with a driving portion for providing power for each fishing rod to reciprocate in the corresponding casing through the synchronization rod.

5. The rotary drum type inner flow screen decontamination machine according to claim 4, characterized in that: The pushing portion includes two eccentric rings sleeved on the outside of the two power rings. The eccentric rings are eccentrically arranged relative to the corresponding power rings. The eccentric rings rotate in the outer cylinder, and the end of the synchronization rod is connected to the eccentric rings.

6. The rotary drum type inner inlet screen dirt remover according to claim 5, characterized in that: The pushing portion includes a guide groove opened on the inner wall of the outer cylinder, and the guide groove consists of a first arc groove, a second arc groove and two transition grooves. The transition groove is used to connect the first arc groove and the second arc groove, and the radius of the first arc groove is not equal to the radius of the second arc groove. The end of the synchronization rod is slidably set in the guide groove.

7. The rotary drum type inner flow screen decontamination machine according to claim 6, characterized in that: One end of the outer cylinder is provided with a water inlet, and the other end of the outer cylinder is provided with a drainage channel.

8. The rotary drum type inner flow screen decontamination machine according to claim 7, characterized in that: The lower side of the inner part of the outer cylinder is arranged along the axis direction of the outer cylinder by a plurality of arc-shaped guide bodies, the surface of the arc-shaped guide body is perpendicular to the axis of the outer cylinder, the surface of the arc-shaped guide body facing the water inlet is set as an arc surface, and the surface of the arc-shaped guide body facing the drainage channel is set as an inclined surface.

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