Scraping and stirring machine for sedimentation tank

Abstract

The utility model belongs to the technical field of mud scrapers, and relates to a sedimentation tank scraping and mixing machine which comprises a transmission shaft, a working bridge, a driving motor and a scraping and mixing shaft, a worm is rotatably mounted in the transmission shaft, notches are symmetrically formed in the two sides of the transmission shaft, and rotating seats are fixedly welded to the outer side ends of the notches; the two scraping and stirring shafts are symmetrically installed on the two sides of the transmission shaft respectively, each scraping and stirring shaft is composed of an adjusting head and a plurality of extension rods, the adjusting heads are rotationally installed on the rotating base, worm gear heads are integrally formed at one ends of the adjusting heads, and the worm gear heads are connected with the worm in a meshed mode through the worm gear heads; a pair of positioning plates are fixedly welded to the top and the bottom of the outer side of the extension rod, a mud scraping plate is arranged between the two positioning plates, and two positioning bolts are inserted into the mud scraping plate; the scraping and mixing machine is used for cleaning the settling pond, is high in universality, can be suitable for settling ponds with different diameters and bottom inclination angles, and has a better cleaning effect on suspended matters with low settleability in water due to the innovative design of the mud scraping plates.

Description

Technical Field

[0001] The utility model belongs to the technical field of mud scrapers, in particular to a sedimentation tank scraper. Background Art

[0002] The scraper is a conventional equipment for supporting sedimentation tanks in sewage treatment projects. It consists of a drive installation, a working bridge, a main scraper installation, an auxiliary scraper installation, a slag baffle, and a collector installation. It is mainly used in large-diameter circular sedimentation tanks in urban sewage treatment plants, water plants, and industrial wastewater treatment to sweep away the sludge settled at the bottom of the tank and skim off the scum on the surface of the tank. The working principle of the scraper is that the motor drive installation drives the scraper to rotate around the center of the sedimentation tank. After the raw water is precipitated in the sedimentation tank, the supernatant is discharged from the overflow weir plate. The sludge settled at the bottom of the tank, under the push of the logarithmic spiral scraper, slowly flows along the bottom of the tank to the local sludge collection tank and is discharged through the sludge discharge pipe. At the same time, the scum on the surface of the pool is concentrated in the area between the scum scraper and the scum baffle. When the working bridge passes through the scum discharge cylinder floating on the surface of the pool, the scum discharge cylinder is pressed below the liquid surface, and the scum is discharged out of the pool through the discharge cylinder.

[0003] For example, a Chinese utility model patent with publication number CN212941636U discloses a sedimentation tank scraper, including a sedimentation tank and an ultrasonic transmitter, wherein a pillar is fixedly connected to the bottom of the sedimentation tank, an end of the pillar away from the sedimentation tank is fixedly connected to a mounting seat, a bridge is rotatably connected to the top of the mounting seat, grooves are provided at both ends of the bridge, rollers are rotatably connected in the grooves, an escalator is fixedly connected to the bottom of the bridge, an end of the escalator away from the bridge is fixedly connected to a stabilizing plate, a plurality of connecting rods are fixedly connected to the bottom of the stabilizing plate, and a scraper is fixedly connected to the end of the connecting rod away from the stabilizing plate; the structure of the device is simple, the scraper and the brush can thoroughly scrape the sludge at the bottom of the sedimentation tank, and the scraping effect is better, the ultrasonic transmitter and the screen screen the large particles of sludge at the bottom to prevent excessive sludge particles from clogging the drainage channel at the bottom of the sedimentation tank.

[0004] However, the above utility model still has certain defects. It cannot be adapted to sedimentation tanks with different diameters and bottom angles. Its poor versatility will increase production costs. In addition, the scraper angles are mostly designed to be unified up and down, and it is unable to scrape and stir suspended matter with low sedimentation properties in the water, resulting in poor cleaning effect. Utility Model Content

[0005] In order to solve the technical problems that the utility model in the above background technology cannot be adapted to sedimentation tanks with different diameters and bottom angles, the poor versatility will increase the production cost, and the scraper angles are mostly designed uniformly up and down, which cannot scrape and mix the suspended matter with weak sedimentation in the water, and the cleaning effect is poor, the utility model provides the following technical solutions:

[0006] The utility model relates to a scraper and mixer for a sedimentation tank, comprising a transmission shaft, a working bridge, a driving motor and a scraper and mixer shaft, wherein a worm is rotatably installed in the transmission shaft, notches are symmetrically provided on both sides of the transmission shaft and a rotating seat is fixedly welded on the outer end of the notch, and two scraper and mixer shafts are provided and are symmetrically installed on both sides of the transmission shaft respectively;

[0007] The scraping and mixing shaft consists of an adjusting head and multiple extension rods. The adjusting head is rotatably mounted on a rotating seat. A worm gear head is integrally formed at one end of the adjusting head and is meshed with the worm through the worm gear head. A pair of positioning plates are fixedly welded to the top and bottom of the outer side of the extension rod. A scraper plate is provided between the two positioning plates and two positioning bolts are inserted on the scraper plate.

[0008] As a preferred technical solution of the utility model, the transmission shaft is rotatably mounted on the working bridge, the driving motor is fixedly mounted on the top of the working bridge and the output end is fixedly connected to the end of the transmission shaft.

[0009] As a preferred technical solution of the utility model, a rotating head is fixedly welded to one end of the worm away from the transmission shaft, and the rotating head is hexagonal.

[0010] As a preferred technical solution of the utility model, the adjusting head and one end of the extension rod are both provided with a plurality of plug holes at equal distances, and the other end of the extension rod is correspondingly fixedly welded with a plurality of plug rods.

[0011] As a preferred technical solution of the utility model, positioning holes are correspondingly provided on the plug-in rod, the adjustment head and the extension rod.

[0012] As a preferred technical solution of the utility model, two concentric arc-shaped adjustment grooves are provided on the positioning plate, and the distance between the two adjustment grooves is equal to the distance between the two positioning bolts.

[0013] As a preferred technical solution of the utility model, the two scraper blades above and below are in an "X" staggered shape when viewed from above.

[0014] The beneficial effects achieved by the utility model are:

[0015] The scraping shaft rotates to scrape and stir the bottom of the sedimentation tank, which is very effective in cleaning the stains attached to the bottom of the sedimentation tank. When viewed from the top, it presents an "X" shape, which has the effect of local disturbance, can scrape and stir the suspended matter with weak sedimentation in the water, and improve the operation effect of the equipment.

[0016] The rotating head drives the worm to rotate the adjusting head, and the adjusting shaft rotates to achieve the purpose of adjusting the overall angle of the scraping shaft. At the same time, through the separate and combined design, an extension rod is added to achieve the purpose of adjusting the overall length of the scraping shaft. The scraper blade is positioned by rotating the angle and then tightening the positioning bolt. It can be applied to sedimentation tanks with different diameters and bottom inclination angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a structural schematic diagram of a sedimentation tank scraper and mixer of the utility model;

[0019] Figure 2 This is a structural schematic diagram of a transmission shaft in a sedimentation tank scraper and mixer of the utility model;

[0020] Figure 3 This is a structural schematic diagram of a scraping and mixing shaft in a sedimentation tank scraping and mixing machine of the utility model;

[0021] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0022] Figure 5 The utility model is a structural schematic diagram of an extension rod in a sedimentation tank scraper and mixer.

[0023] In the figure: 1. transmission shaft; 101. worm; 102. rotating head; 103. notch; 104. rotating seat; 2. working bridge; 3. driving motor; 4. scraping shaft; 401. adjusting head; 402. extension rod; 403. scraper plate; 404. plug-in hole; 405. plug-in rod; 406. positioning plate; 407. adjusting slot; 408. positioning bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example: Figure 1-5As shown, a sedimentation tank scraper and mixer comprises a transmission shaft 1, a working bridge 2, a driving motor 3 and a scraper and mixer shaft 4, a worm 101 is rotatably installed in the transmission shaft 1, notches 103 are symmetrically opened on both sides of the transmission shaft 1 and a rotating seat 104 is fixedly welded on the outer end of the notch 103, and two scraper and mixer shafts 4 are provided and symmetrically installed on both sides of the transmission shaft 1;

[0026] The scraping and mixing shaft 4 is composed of an adjusting head 401 and multiple extension rods 402. The adjusting head 401 is rotatably installed on the rotating seat 104. A worm gear head is integrally formed at one end of the adjusting head 401 and is meshed with the worm 101 through the worm gear head. A pair of positioning plates 406 are fixedly welded to the top and bottom of the outer side of the extension rod 402. A scraper plate 403 is provided between the two positioning plates 406, and two positioning bolts 408 are inserted on the scraper plate 403. When in use, the worm 101 rotates to drive the adjusting head 401 to rotate through the worm gear head, and the adjusting shaft rotates to achieve the purpose of adjusting the overall angle of the scraping and mixing shaft 4.

[0027] The transmission shaft 1 is rotatably mounted on the working bridge 2, the driving motor 3 is fixedly mounted on the top of the working bridge 2 and the output end is fixedly connected to the end of the transmission shaft 1. When in use, the working bridge 2 is fixedly mounted at the top opening of the sedimentation tank, and the driving motor 3 works to drive the transmission shaft 1 to rotate.

[0028] A rotating head 102 is fixedly welded to one end of the worm 101 away from the transmission shaft 1 and the rotating head 102 is hexagonal. When in use, a tool is used to adapt the rotating head 102 to drive the worm 101 to rotate.

[0029] A plurality of plug holes 404 are equidistantly provided at one end of the adjusting head 401 and the extension rod 402, and a plurality of plug rods 405 are correspondingly fixedly welded to the other end of the extension rod 402. When in use, the plug rods 405 are inserted into the plug holes 404 for docking and assembly, thereby achieving the purpose of quick docking and installation. At the same time, the purpose of adjusting the overall length of the scraping shaft 4 is achieved by adding the extension rod 402.

[0030] Positioning holes are correspondingly provided on the plug-in rod 405, the adjustment head 401 and the extension rod 402. When in use, bolts are screwed into the positioning holes to achieve the purpose of docking, positioning and fixing.

[0031] Two concentric arc-shaped adjustment grooves 407 are provided on the positioning plate 406, and the distance between the two adjustment grooves 407 is equal to the distance between the two positioning bolts 408. When in use, the angle of the scraper plate 403 is rotated, and the positioning bolts 408 are driven to rotate in the adjustment grooves 407. After the angle adjustment is completed, the positioning bolts 408 are tightened to achieve the purpose of angle positioning of the scraper plate 403.

[0032] The upper and lower scraper blades 403 are in an "X" staggered shape when viewed from above. When in use, they appear in an "X" shape when viewed from the top, which has the effect of local spoiler and improves the operation effect of the equipment.

[0033] Specifically, when the utility model is used, the working bridge 2 is fixedly installed at the top opening of the sedimentation tank, the driving motor 3 works to drive the transmission shaft 1 to rotate, and the rotation of the transmission shaft 1 drives the scraping and mixing shaft 4 to rotate to scrape and mix the bottom of the sedimentation tank. When viewed from the top, it presents an "X" shape, has the effect of local disturbance, can scrape and mix the suspended matter with weak sedimentation in the water, improve the operation effect of the equipment, and use the tool adapter rotating head 102 to drive the worm 101 to rotate, the rotation of the worm 101 drives the adjusting head 401 to rotate through the worm gear head, and the adjusting shaft rotates to adjust the scraping and mixing shaft 4 The purpose of the overall angle is achieved. At the same time, the plug-in rod 405 is inserted into the plug-in hole 404 for docking and assembly, so as to achieve the purpose of quick docking and installation. At the same time, the purpose of adjusting the overall length of the scraping shaft 4 is achieved by adding an extension rod 402. The purpose of docking and positioning is achieved by screwing a bolt into the positioning hole. The angle of the scraper plate 403 is rotated and the positioning bolt 408 is driven to rotate in the adjustment groove 407. After the angle adjustment is completed, the positioning bolt 408 is tightened to achieve the purpose of angle positioning of the scraper plate 403. It can be suitable for sedimentation tanks with different diameters and bottom inclination angles.

[0034] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships 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 should not be understood as a limitation on the present invention.

[0035] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A scraper for a sedimentation tank, comprising a transmission shaft (1), a working bridge (2), a drive motor (3) and a scraper shaft (4), characterized in that: A worm (101) is rotatably mounted in the transmission shaft (1), notches (103) are symmetrically provided on both sides of the transmission shaft (1), and a rotating seat (104) is fixedly welded to the outer end of the notch (103), and two scraping and stirring shafts (4) are provided and are symmetrically mounted on both sides of the transmission shaft (1); The scraping and mixing shaft (4) is composed of an adjusting head (401) and a plurality of extension rods (402); the adjusting head (401) is rotatably mounted on a rotating seat (104); a worm gear head is integrally formed at one end of the adjusting head (401) and is meshedly connected to the worm (101) via the worm gear head; a pair of positioning plates (406) are fixedly welded at the top and bottom of the outer side of the extension rod (402); a scraping plate is provided between the two positioning plates (406), and two positioning bolts (408) are inserted into the scraping plate (403).

2. A sedimentation tank scraper according to claim 1, characterized in that: The transmission shaft (1) is rotatably mounted on the working bridge (2), and the drive motor (3) is fixedly mounted on the top of the working bridge (2) with the output end fixedly connected to the end of the transmission shaft (1).

3. A sedimentation tank scraper according to claim 1, characterized in that: A rotating head (102) is fixedly welded to one end of the worm (101) away from the transmission shaft (1), and the rotating head (102) is hexagonal.

4. A sedimentation tank scraper according to claim 1, characterized in that: The adjusting head (401) and one end of the extension rod (402) are both provided with a plurality of plug holes (404) at equal intervals, and the other end of the extension rod (402) is correspondingly fixedly welded with a plurality of plug rods (405).

5. A sedimentation tank scraper according to claim 4, characterized in that: Positioning holes are correspondingly formed on the plug-in rod (405), the adjustment head (401) and the extension rod (402).

6. A sedimentation tank scraper according to claim 1, characterized in that: The positioning plate (406) is provided with two concentric arc-shaped adjustment grooves (407), and the distance between the two adjustment grooves (407) is equal to the distance between the two positioning bolts (408).

7. A sedimentation tank scraper according to claim 1, characterized in that: The two scraper blades (403) are in an "X" staggered shape when viewed from above.

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