Sludge discharge device of sludge storage tank for domestic sewage treatment

Abstract

The utility model relates to the technical field of domestic sewage treatment, and discloses a sludge discharge device of a sludge storage tank for domestic sewage treatment, which comprises a sludge storage tank body and an operation frame, an operation table is arranged in the middle of the operation frame above the sludge storage tank, a longitudinal rotating shaft is arranged in the center of the operation table, and a mounting frame is sleeved on the longitudinal rotating shaft. A mud scraping circular ring is fixedly mounted below the mounting frame, two shaft brackets are symmetrically arranged on two sides of the operation table, a transverse rotating shaft is mounted on the two shaft brackets, flywheels are fixedly mounted at two ends of the transverse rotating shaft, and the two flywheels are connected with the mounting frame through connecting rods respectively; sludge attached to the side wall of the sludge storage tank can be scraped through the up-down reciprocating motion of the sludge scraping circular ring, the sludge discharge rate of the sludge storage tank is guaranteed, meanwhile, the sludge on the side wall of the sludge storage tank is prevented from polluting supernatant liquid, and the separation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of domestic sewage treatment, in particular to a mud discharge device of a mud storage tank for domestic sewage treatment. Background Art

[0002] A large amount of domestic sewage is generated in the daily life of residents. The direct discharge of untreated domestic sewage will have a bad impact on the environment. It will not only pollute water resources, but also cause waste of recyclable resources. Therefore, it is necessary to treat domestic sewage, separate the sludge in the sewage from the clean water, reuse the clean water, and treat the sludge harmlessly. A sludge storage tank is needed in the separation process. When the sludge in the sludge storage tank reaches a certain amount, it needs to be discharged. A sludge discharge device for the sludge storage tank is needed.

[0003] For example, patent document CN212833359U discloses a mud discharge structure of a mud storage tank for sewage treatment, including a mud storage tank, a mud discharge pump, a mud discharge pipe, a mud discharge plate and a motor. The motor is fixed to the outer bottom of the mud storage tank, and the motor passes through the bottom of the mud storage tank and is connected to a rotating seat connected to the bottom of the mud storage tank. The side of the rotating seat is fixedly connected to one end of the mud discharge plate with a mud discharge groove, and the other end of the mud discharge plate is fixedly connected to a baffle. The top of the rotating seat is connected to the bottom of the mud discharge pipe, the top of the mud discharge pipe is connected to a diverter, the side of the diverter is connected to the diverter pipe, and the top of the diverter is connected to the discharge The top of the discharge pipe is connected to the sludge pump, and the motor drives the rotating seat connected to the bottom of the sludge storage tank to rotate. The sludge discharge plate scrapes the sludge at the bottom of the sludge storage tank into the sludge discharge groove of the sludge discharge plate, and the diversion pipe sucks the sludge suspended at the bottom of the sludge storage tank. Finally, under the action of the sludge discharge pump, the sludge is discharged from the sludge storage tank along the discharge pipe; however, this existing technology still has many shortcomings. For example, when the sludge is concentrated in the sludge storage tank, part of the sludge will adhere to the side wall of the sludge storage tank, and gradually accumulate and thicken and cannot be discharged in time, which pollutes the upper clear liquid and also causes a loss of sludge discharge volume. Utility Model Content

[0004] The purpose of the utility model is to provide a mud discharge device for a mud storage tank for domestic sewage treatment, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mud discharge device for a sludge storage tank for domestic sewage treatment, comprising a sludge storage tank body and an operating frame, the operating frame is provided above the sludge storage tank, an operating platform is provided in the middle of the operating frame, a longitudinal rotating shaft is provided in the center of the operating platform, a mounting frame is provided on the longitudinal rotating shaft, a mud scraping ring is fixedly installed under the mounting frame, and the diameter of the mud scraping ring is the same as the inner diameter of the mud storage tank body; two shaft brackets are symmetrically provided on both sides of the operating platform, and the two shaft brackets are jointly equipped with a horizontal rotating shaft, flywheels are fixedly installed at both ends of the horizontal rotating shaft, connecting rods are rotatably installed at the lower ends of the two flywheels, and the lower ends of the two connecting rods are rotatably installed on the side walls of the mounting frame.

[0006] As a further improvement to the above solution, the size of the lower end of the flywheel is smaller than that of the upper end of the flywheel, and mounting holes are provided at the center of the flywheel and the lower end of the flywheel.

[0007] As a further improvement to the above solution, a mud collecting plate is fixedly connected to the lower end of the longitudinal rotating shaft, and a driven bevel gear is fixedly installed on the upper end of the longitudinal rotating shaft.

[0008] As a further improvement to the above solution, the transverse rotating shaft is sleeved with transmission bevel gears, the transmission bevel gears are engaged with the driven bevel gears, and the transverse rotating shaft is also provided with a driven pulley.

[0009] As a further improvement to the above solution, a motor is provided on the mounting frame, a driving pulley is fixedly connected to the output end of the motor, and a transmission belt is provided together with the driving pulley and the driven pulley.

[0010] As a further improvement to the above solution, a mud outlet is provided at the bottom of the mud storage tank body, a water inlet trough is provided at the upper edge of the mud storage tank body, and a plurality of water distribution holes connected to the mud storage tank body are opened on the bottom surface of the water inlet trough.

[0011] As a further improvement to the above scheme, the water inlet trough is provided with a water outlet trough near the center of the mud storage tank body, the water outlet trough is connected to the water outlet through the water inlet trough, and the overflow wall of the water outlet trough close to the side of the mud storage tank body is lower than the side wall of the mud storage tank body.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model is provided with an operating table above the mud storage tank body, a longitudinal rotating shaft is provided in the center of the operating table, a mud collecting plate is fixedly installed at the lower end of the longitudinal rotating shaft, a mounting frame is sleeved on the longitudinal rotating shaft, a mud scraping ring is fixedly installed under the mounting frame, two shaft brackets are symmetrically provided on both sides of the operating table, a transverse rotating shaft is installed together with the two shaft brackets, the transverse rotating shaft is connected to the longitudinal rotating shaft through bevel gear meshing, flywheels are fixedly installed at both ends of the transverse rotating shaft, connecting rods are rotatably installed at the lower ends of the two flywheels, and the lower ends of the two connecting rods are rotatably installed on the side walls of the mounting frame; when the transverse rotating shaft rotates to drive the flywheel to rotate, The flywheel and the mounting frame convert the continuous rotation of the transverse shaft into an up and down reciprocating motion of the mounting frame through a connecting rod, so that the scraper ring can scrape the side wall of the sludge storage tank up and down, while the mud collecting plate collects the sludge at the bottom of the sludge storage tank to the mud outlet, cleaning the side wall of the sludge storage tank without adding a motor, keeping the sludge storage tank clean, and improving the sludge discharge rate. Furthermore, the two ends of the flywheel are different in size. The smaller lower end is connected to the scraper ring through a connecting rod, and the larger upper end balances the load brought to the transverse shaft by the scraper ring when the flywheel rotates, making the rotation of the transverse shaft more stable and reducing the wear of the transverse shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from a first viewing angle;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle;

[0017] Figure 3 It is a schematic diagram of the structure of the enlarged part A of the present utility model;

[0018] Figure 4 This is a schematic structural diagram of the mud storage tank in the utility model;

[0019] Figure 5 This is a schematic structural diagram of the mud scraping assembly in the present utility model;

[0020] Figure 6 This is an exploded view of the scraper assembly in the present invention;

[0021] In the figure: 1. Mud storage tank body; 11. Mud outlet; 12. Water inlet trough; 121. Water distribution hole; 13. Water outlet trough; 131. Overflow wall; 14. Water outlet; 2. Operating frame; 3. Operating table; 31. Longitudinal rotating shaft; 311. Mud collecting plate; 312. Driven bevel gear; 32. Shaft bracket; 33. Horizontal rotating shaft; 331. Transmission bevel gear; 332. Driven pulley; 34. Flywheel; 35. Connecting rod; 4. Mounting frame; 5. Mud scraping ring; 53. Limit baffle; 6. Motor; 61. Driving pulley. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0023] A sludge discharge device for a sludge storage tank for domestic sewage treatment, such as Figures 1 to 6 As shown, it includes a sludge storage tank body 1 and an operating frame 2. An operating frame 2 is provided above the sludge storage tank, and the operating frame 2 spans above the sludge storage tank body, which is convenient for the staff to observe the sewage inside the sludge storage tank body 1 during daily management. An operating table 3 is provided in the middle of the operating frame 2. The operating table 3 is located in the middle of the operating frame, which is convenient for the staff to maintain and repair the sludge discharge device. A longitudinal rotating shaft 31 is provided in the center of the operating table 3, and a mounting frame 4 is provided on the longitudinal rotating shaft 31. A scraper ring 5 is fixedly installed under the mounting frame 4, and the scraper ring 5 slides up and down and is installed in the storage tank. In the mud pool body 1, the sludge attached to the inner wall of the mud pool body is hung down and collected at the bottom of the mud pool body 1. Two shaft brackets 32 are symmetrically provided on both sides of the operating table 3. The two shaft brackets 32 are jointly installed with a horizontal rotating shaft 33. Flywheels 34 are fixedly installed at both ends of the horizontal rotating shaft 33. The lower ends of the two flywheels 34 are rotatably installed with connecting rods 35. The lower ends of the two connecting rods 35 are rotatably installed on the side walls of the mounting frame 4. The rotation of the flywheel 34 drives the scraper ring 5 to reciprocate up and down through the connecting rod 35, and continuously performs the scraping operation on the side walls of the mud pool body 1.

[0024] like Figure 3 、 Figure 4 and Figure 5The cam 331 of the embodiment of the present invention is a kind of cam 332 that is used for the lifting of the cam 33 and the cam 333 of the present invention is a kind of cam 332 that is used for the lifting of the cam 33 and the cam 333 of the present invention is a kind of cam 332 that is used for the lifting of the cam 33 and the cam 333 of the present invention is a kind of cam 332 that is used for the lifting of the cam 33 and the cam 333 of the present invention is a kind of cam 332 that is used for the lifting of the cam 33 and the cam

[0025] like Figure 4 As shown, a mud outlet 11 is provided at the bottom of the sludge storage tank body 1, and the mud outlet 11 is connected to the mud outlet pipe to transport the sludge to subsequent treatment equipment. A water inlet trough 12 is provided on the upper edge of the sludge storage tank body 1, and a plurality of water distribution holes 121 communicating with the sludge storage tank body 1 are opened on the bottom of the water inlet trough 12. The water inlet trough 12 surrounds the inner edge of the sludge storage tank body 1. Sewage slowly enters the sludge storage tank through the water distribution holes 121 on the bottom of the water inlet trough 12. The sludge flows down along the inner wall of the sludge storage tank and gradually concentrates at the bottom of the sludge storage tank under the action of gravity. Due to the hydrostatic pressure at the bottom of the pool, the sludge is gradually dehydrated and eventually discharged through the mud discharge pipe while maintaining a low water content. A water outlet trough 13 is provided near the center of the sludge storage tank body 1 in the water inlet trough 12. The water outlet trough 13 is connected to the water outlet 14 through the water inlet trough 12. The overflow wall 131 on the side of the water outlet trough 13 close to the sludge storage tank body 1 is lower than the side wall of the sludge storage tank body 1. As the water level rises, the upper clear liquid enters the water outlet trough 13 from the overflow wall 131, and is collected in the water outlet trough 13 and flows out through the water outlet 14.

[0026] When Example 1 is working, sewage is injected into the water inlet trough 12, and the sewage enters the bottom of the sludge storage tank through the water distribution hole 121 at the bottom of the water inlet trough 12. Under the action of hydrostatic pressure, the sludge is separated from the water, and the sludge gathers at the bottom of the sludge storage tank. The upper clear liquid flows into the outlet trough 13 through the overflow wall 131 and flows out through the outlet 14. After the sludge at the bottom of the sludge storage tank gathers to the discharge standard, the motor 6 is started, and the motor 6 drives the horizontal rotating shaft 33 to rotate through the transmission belt and pulley, and the flywheel 34 drives the scraper ring 5 to reciprocate up and down to scrape the sludge on the side wall of the sludge storage tank body 1 and collect it to the bottom of the tank. The horizontal rotating shaft 33 engages with the driven bevel gear 312 through the transmission bevel gear 331 to drive the longitudinal rotating shaft 31 to rotate, and the longitudinal rotating shaft 31 drives the mud collecting plate 311 to collect the sludge at the bottom of the sludge storage tank and push it to the mud outlet 11, and the sludge is discharged through the mud outlet 11. Example 2

[0027] Example 2 is based on Example 1, as Figure 5 and Figure 6 As shown, flywheels 34 are fixedly installed at both ends of the transverse rotating shaft 33. The two ends of the flywheel 34 are different in size. The lower end of the flywheel 34 is smaller than the upper end of the flywheel 34. Mounting holes are provided at the center and the lower end of the flywheel 34. The flywheel 34 rotates around the transverse rotating shaft 33. The upper end of the flywheel 34 is larger and is used to balance the weight of the scraper ring 5 during rotation, thereby reducing the wear of the transverse rotating shaft 33 and the two shaft brackets 32.

[0028] When Example 2 is working, the transverse rotating shaft 33 drives the flywheel 34 to rotate. The upper end of the flywheel 34 is larger in size, and is balanced with the connecting rod 35 and the scraper ring 5 connected to the other end of the flywheel 34, so that the transverse rotating shaft 33 is evenly loaded during rotation and rotates more smoothly, while reducing the pressure on the motor 6 and the wear of the transverse rotating shaft 33 and the two shaft brackets 32.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sludge discharge device for a sludge storage tank for domestic sewage treatment, comprising a sludge storage tank body (1) and an operating frame (2), characterized in that: The operating frame (2) is provided above the mud storage tank, an operating platform (3) is provided in the middle of the operating frame (2), a longitudinal rotating shaft (31) is provided in the center of the operating platform (3), a mounting frame (4) is sleeved on the longitudinal rotating shaft (31), a mud scraping ring (5) is fixedly installed under the mounting frame (4), and the diameter of the mud scraping ring (5) is the same as the inner diameter of the mud storage tank body (1); two shaft brackets (32) are symmetrically provided on both sides of the operating platform (3), and the two shaft brackets (32) are commonly installed with a transverse rotating shaft (33), and flywheels (34) are fixedly installed at both ends of the transverse rotating shaft (33), and connecting rods (35) are rotatably installed at the lower ends of the two flywheels (34), and the lower ends of the two connecting rods (35) are rotatably installed on the side walls of the mounting frame (4).

2. The sludge discharge device for a sludge storage tank for domestic sewage treatment according to claim 1, characterized in that: The size of the lower end of the flywheel (34) is smaller than the size of the upper end of the flywheel (34), and mounting holes are provided at the center of the flywheel (34) and the lower end of the flywheel (34).

3. The sludge discharge device for a sludge storage tank for domestic sewage treatment according to claim 1, characterized in that: The lower end of the longitudinal rotating shaft (31) is fixedly connected to a mud collecting plate (311), and the upper end of the longitudinal rotating shaft (31) is fixedly mounted with a driven bevel gear (312).

4. The sludge discharge device for a sludge storage tank for domestic sewage treatment according to claim 3, characterized in that: The transverse rotating shaft (33) is sleeved with a transmission bevel gear (331), the transmission bevel gear (331) is meshed with the driven bevel gear (312), and the transverse rotating shaft (33) is also provided with a driven pulley (332).

5. The sludge discharge device for a sludge storage tank for domestic sewage treatment according to claim 4, characterized in that: The mounting frame (4) is provided with a motor (6), the output end of the motor (6) is fixedly connected to a driving pulley (61), and the driving pulley (61) and the driven pulley (332) are both sleeved with a transmission belt.

6. The sludge discharge device for a sludge storage tank for domestic sewage treatment according to claim 1, characterized in that: The bottom of the mud storage tank body (1) is provided with a mud outlet (11), the upper edge of the mud storage tank body (1) is provided with a water inlet groove (12), and the bottom surface of the water inlet groove (12) is provided with a plurality of water distribution holes (121) in communication with the mud storage tank body (1).

7. The sludge discharge device for a sludge storage tank for domestic sewage treatment according to claim 6, characterized in that: The water inlet trough (12) is provided with a water outlet trough (13) near the center of the mud storage tank body (1). The water outlet trough (13) passes through the water inlet trough (12) and is connected to a water outlet (14). The overflow wall (131) of the water outlet trough (13) near one side of the mud storage tank body (1) is lower than the side wall of the mud storage tank body (1).

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