Scum hopper of secondary sedimentation tank

Abstract

The utility model discloses a secondary sedimentation tank scum hopper, and relates to the field of sewage treatment.The secondary sedimentation tank scum hopper comprises a scum hopper main body, a secondary sedimentation tank is arranged on one side of the scum hopper main body, the side edge of the scum hopper main body is fixedly connected with the secondary sedimentation tank, a supporting frame is installed in the secondary sedimentation tank, a scum scraping plate is fixed to the supporting frame, and the scum scraping plate is fixedly connected with the scum hopper main body. An auxiliary collecting mechanism is arranged between the scum scraping plate and the scum hopper main body. When the supporting frame drives the scum scraping plate to move to the scum hopper main body, the scum scraping plate extrudes the auxiliary collecting mechanism, the auxiliary collecting mechanism moves on the scum hopper main body, the water surface in the secondary sedimentation tank can just enter the scum hopper main body, and under the driving of water flowing to the scum hopper main body and the driving of the scum scraping plate, the scum in the secondary sedimentation tank can be collected. The scum enters the scum hopper main body, so that the efficiency of driving the scum to enter the scum hopper main body by the scum scraping plate can be improved, and the possibility that part of scum floats on the water surface and cannot enter the scum hopper main body is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sewage treatment, in particular to a secondary sedimentation tank scum bucket. BACKGROUND

[0002] The secondary sedimentation tank is an important part of the activated sludge system in the sewage treatment process and the last step of the biological treatment of sewage, and its main function is to separate sludge, clarify the mixed liquid, and concentrate the sludge in the mixed liquid.

[0003] In operation, the surface of the secondary sedimentation tank inevitably has scum, and the existing secondary sedimentation tank removes the scum by using a scum scraping plate provided on a rotary suction scraper, which cooperates with a scum bucket fixedly installed on the inner side of the effluent weir of the secondary sedimentation tank. The scum scraping plate is located on the surface of the secondary sedimentation tank and can rotate around the central support of the secondary sedimentation tank, and the outer end of the scum scraping plate away from the central support of the secondary sedimentation tank is fixed with a scum rake made of soft rubber. The inlet of the scum bucket is slightly higher than the liquid level of the surface of the secondary sedimentation tank. In use, the scum on the surface of the secondary sedimentation tank is swept into the scum bucket by the scum rake and removed.

[0004] However, in actual scum collection, in order to enable the scum rake fixed on the scum scraping plate to pass over the scum bucket, the scum rake is made of soft rubber. When the scum rake moves, part of the scum is blocked by the part of the scum bucket above the water surface, resulting in that the scum always exists and floats on the surface of the secondary sedimentation tank along with the rotary movement of the scum scraping plate, and is difficult to be swept into the scum bucket by the scum rake, which affects the cleanliness and appearance of the clarified liquid on the surface of the secondary sedimentation tank. CONTENT OF THE INVENTION

[0005] The present application aims to solve the problem that, in the background technology, when the scum rake moves, part of the scum is blocked by the part of the scum bucket above the water surface, resulting in that the scum always exists and floats on the surface of the secondary sedimentation tank along with the rotary movement of the scum scraping plate, and is difficult to be swept into the scum bucket by the scum rake, which affects the cleanliness and appearance of the clarified liquid on the surface of the secondary sedimentation tank, and provides a secondary sedimentation tank scum bucket.

[0006] In order to achieve the above-mentioned purpose, the present application specifically adopts the following technical scheme:

[0007] The secondary sedimentation tank scum bucket comprises a scum bucket main body, one side of the scum bucket main body is provided with a secondary sedimentation tank, the side edge of the scum bucket main body is fixedly connected with the secondary sedimentation tank, a supporting frame is installed in the secondary sedimentation tank, a scum scraping plate is fixedly connected to the supporting frame, and an auxiliary collection mechanism is arranged between the scum scraping plate and the scum bucket main body.

[0008] By adopting the above technical scheme, when the support frame drives the slag scraping plate to move to the dross hopper main body, the slag scraping plate extrudes the auxiliary collecting mechanism, the auxiliary collecting mechanism moves on the dross hopper main body, the water surface in the secondary sedimentation tank can just enter the dross hopper main body, under the driving of the water flow flowing to the dross hopper main body and the slag scraping plate, the dross enters the dross hopper main body, thereby the efficiency of the slag scraping plate driving the dross to enter the dross hopper main body can be improved, and the possibility of a part of the dross floating on the water surface and failing to enter the dross hopper main body can be reduced.

[0009] Further, the auxiliary collecting mechanism is provided with a turning plate, two symmetrical positioning pins are arranged between the turning plate and the dross hopper main body, the turning plate and the dross hopper main body are rotationally connected by the positioning pins, the turning plate is flush with the dross hopper, a reset assembly is arranged between the turning plate and the dross hopper, and a pressing rod is fixed to the slag scraping plate.

[0010] By adopting the above technical scheme, the slag scraping plate drives the pressing rod to move, the pressing rod presses the turning plate downward, the turning plate is lower than the water surface, and the water flow drives the dross to enter the dross hopper main body, thereby the efficiency of the slag scraping plate driving the dross to enter the dross hopper main body can be improved, and the possibility of a part of the dross floating on the water surface and failing to enter the dross hopper main body can be reduced.

[0011] Further, the reset assembly comprises a reset block one fixed to the turning plate, a reset block two is fixed to the dross hopper main body, a reset spring is arranged between the reset block one and the reset block two, and the two ends of the reset spring are fixedly connected with the reset block one and the reset block two.

[0012] By adopting the above technical scheme, the reset spring on the reset block two pulls the reset block one, the reset block one drives the turning plate, and the turning plate vertically upwardly moves under the limitation of the positioning pins, thereby the turning plate can be conveniently reset.

[0013] Further, the pressing rod is arc-shaped, and an end of the pressing rod away from the slag scraping plate is raised.

[0014] By adopting the above technical scheme, the raised pressing rod presses the turning plate downward by the arc-shaped side when the pressing rod moves, thereby the pressing rod can conveniently drive the turning plate.

[0015] Further, a support seat is fixed to the turning plate, and a guide wheel is rotationally connected to the support seat.

[0016] By adopting the above technical scheme, the pressing rod abuts against the guide wheel when the pressing rod moves, and the pressing rod presses the guide wheel downward, thereby the friction between the pressing rod and the turning plate can be reduced.

[0017] Further, a groove is formed in the guide wheel, and the groove in the guide wheel corresponds to the pressing rod.

[0018] By adopting the technical scheme, when the pressing rod is pressed onto the guide wheel, the groove on the guide wheel limits the pressing rod, so that the possibility of the pressing rod separating from the guide wheel can be reduced.

[0019] Further, two inclined support rods are fixed in the dross bucket body, and the support rods correspond to the dross scraping plate.

[0020] By adopting the technical scheme, when the dross scraping plate moves past the dross bucket body, the dross scraping plate moves along the support rods, so that the possibility of the dross scraping plate being stuck on the dross bucket body can be reduced.

[0021] Further, a sealing rubber is arranged between the turning plate and the dross bucket body, and the sealing rubber is fixedly connected to the dross bucket and abuts against the turning plate.

[0022] By adopting the technical scheme, when the turning plate is vertically upward, the turning plate abuts against the sealing rubber, so that the possibility of water flowing into the dross bucket body when the turning plate does not move can be reduced.

[0023] In summary, the present application has at least one of the following beneficial effects.

[0024] 1. In the present application, when the support frame drives the dross scraping plate to move in front of the dross bucket body, the raised end of the dross scraping plate abuts against the guide wheel, and under the limitation of the groove of the guide wheel, the dross scraping plate moves along the guide wheel, and under the pressing of the pressing rod, the turning plate is turned into the dross bucket body under the support of the positioning pin, and one side of the opening of the dross bucket body is lower than the water surface, then under the pushing of the dross scraping plate and the driving of the water flow into the dross bucket body, the dross enters into the dross bucket body, then the dross scraping plate drives the pressing rod to move away from above the dross bucket body, and at the same time, the return spring on the reset block two pulls the reset block one, the reset block one drives the turning plate, the turning plate is vertically upward under the limitation of the positioning pin, and the turning plate is reset to block the water flow into the dross bucket body, so that the efficiency of the dross scraping plate driving the dross into the dross bucket body can be improved, and the possibility of a part of the dross floating on the water surface and not entering into the dross bucket body can be reduced.

[0025] 2. In the present application, a ring of sealing rubber is installed between the turning plate and the dross bucket body, and when the turning plate is vertically upward, the turning plate abuts against the sealing rubber, so that the possibility of the water flow into the dross bucket body when the turning plate does not move can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is the first perspective structural schematic view of the dross bucket of the secondary sedimentation tank in the present application;

[0027] Figure 2This is a schematic diagram of the second three-dimensional structure of the scum hopper in the secondary settling tank of this application;

[0028] Figure 3 This is a schematic diagram of the third three-dimensional structure of the scum hopper in the secondary settling tank in this application;

[0029] Figure 4 This application Figure 2 Enlarged diagram of point A in the middle.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Scum hopper body; 2. Support frame; 3. Scum scraper; 4. Secondary sedimentation tank; 5. Auxiliary collection mechanism; 51. Flip plate; 52. Positioning pin; 53. Reset assembly; 531. Reset block one; 532. Reset block two; 533. Reset spring; 54. Downward pressure rod; 55. Support base; 56. Guide wheel; 6. Support rod. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 —4 provides further detailed description of this application.

[0033] This application discloses a scum hopper for a secondary sedimentation tank.

[0034] Reference Figure 1 , Figure 2 and Figure 3 The secondary sedimentation tank 4 includes a scum hopper body 1. A secondary sedimentation tank 4 is located on one side of the scum hopper body 1, and the side of the scum hopper body 1 is fixedly connected to the secondary sedimentation tank 4. A support frame 2 is installed inside the secondary sedimentation tank 4, and a scraper plate 3 is fixed on the support frame 2. An auxiliary collection mechanism 5 is provided between the scraper plate 3 and the scum hopper body 1. When the scum hopper body 1 is fixed in the secondary sedimentation tank 4, the scraper plate 3 collects the scum on the surface of the water in the secondary sedimentation tank 4 as the support frame 2 moves within the secondary sedimentation tank 4. When the support frame 2 moves the scraper plate 3 to the scum hopper body 1, the scraper plate 3 presses against the auxiliary collection mechanism 5. The auxiliary collection mechanism 5 moves on the scum hopper body 1, allowing the water level in the secondary sedimentation tank 4 to just reach the scum hopper body 1. Driven by the water flow towards the scum hopper body 1 and the scraper plate 3, the scum enters the scum hopper body 1. In the process, the scum is collected, and the scraper 3 moves away from the scum body under the drive of the support frame 2. The auxiliary collection mechanism 5 is reset. By installing the auxiliary collection mechanism 5 on the scum hopper body 1, the auxiliary collection mechanism 5 can block the water flow into the scum hopper body 1. When the scraper 3 passes by, the auxiliary collection mechanism 5 moves to allow the water flow into the scum hopper body 1. This can improve the efficiency of the scraper 3 in carrying the scum into the scum hopper body 1 and reduce the possibility that some scum will float on the water surface and cannot enter the scum hopper body 1.

[0035] Reference Figure 2 ,Figure 3 And Figure 4 The auxiliary collecting mechanism 5 is provided with a flap 51, two symmetrical positioning pins 52 are arranged between the flap 51 and the dross bucket body 1, the flap 51 is rotationally connected with the dross bucket body 1 through the positioning pins 52, the flap 51 is flush with the dross bucket body 1, a reset assembly 53 is arranged between the flap 51 and the dross bucket, and a pressing rod 54 is fixed on the slag scraping plate 3.

[0036] In addition, the reset assembly 53 comprises a reset block one 531 fixed on the flap 51, a reset block two 532 fixed on the dross bucket body 1, and a reset spring 533 arranged between the reset block one 531 and the reset block two 532, and the two ends of the reset spring 533 are fixedly connected with the reset block one 531 and the reset block two 532.

[0037] In addition, the reset assembly 53 comprises a reset block one 531 fixed on the flap 51, a reset block two 532 fixed on the dross bucket body 1, and a reset spring 533 arranged between the reset block one 531 and the reset block two 532, and the two ends of the reset spring 533 are fixedly connected with the reset block one 531 and the reset block two 532.

[0038] In addition, the reset assembly 53 comprises a reset block one 531 fixed on the flap 51, a reset block two 532 fixed on the dross bucket body 1, and a reset spring 533 arranged between the reset block one 531 and the reset block two 532, and the two ends of the reset spring 533 are fixedly connected with the reset block one 531 and the reset block two 532.

[0039] In addition, the reset assembly 53 comprises a reset block one 531 fixed on the flap 51, a reset block two 532 fixed on the dross bucket body 1, and a reset spring 533 arranged between the reset block one 531 and the reset block two 532, and the two ends of the reset spring 533 are fixedly connected with the reset block one 531 and the reset block two 532.

[0040] When the supporting frame 2 drives the slag scraping plate 3 to move in front of the dross bucket body 1, one end of the pressing rod 54 driven by the slag scraping plate 3 abuts against the guide wheel 56, under the limitation of the groove of the guide wheel 56, when the slag scraping plate 3 moves, the pressing rod 54 moves along the guide wheel 56, under the pressing of the pressing rod 54, the flap 51 is flipped into the dross bucket body 1 under the support of the positioning pins 52, one side of the opening of the dross bucket body 1 is lower than the water surface, then under the pushing of the slag scraping plate 3 and the driving of the water flow into the dross bucket body 1, the dross enters into the dross bucket body 1, then the pressing rod 54 driven by the slag scraping plate 3 moves away from above the dross bucket body 1, at the same time, the reset spring 533 on the reset block two 532 pulls the reset block one 531, the reset block one 531 drives the flap 51, the flap 51 is vertically upward under the limitation of the positioning pins 52, the flap 51 is reset to block the water flow from entering into the dross bucket body 1, through the pressing of the pressing rod 54 on the slag scraping plate 3 on the flap 51 when the slag scraping plate 3 passes through the dross bucket body 1, the water flow drives the dross to enter into the dross bucket body 1, so that the efficiency of the slag scraping plate 3 driving the dross to enter into the dross bucket body 1 can be improved, and the possibility of a part of the dross floating on the water surface and failing to enter into the dross bucket body 1 can be reduced.

[0041] With reference to Figure 1 And Figure 3, two inclined support rods 6 are fixed in the dross bucket body 1, and the support rods 6 correspond to the dross scraping plate 3. The support rods 6 in the dross bucket body 1 limit and block the dross scraping plate 3, and when the dross scraping plate 3 moves past the dross bucket body 1, the dross scraping plate 3 moves along the support rods 6. By limiting and guiding the dross scraping plate 3 through the support rods 6, the possibility of the dross scraping plate 3 being stuck on the dross bucket body 1 can be reduced.

[0042] Referring to Figure 2 and Figure 4 , a sealing rubber is arranged between the flap 51 and the dross bucket body 1, and the sealing rubber is fixedly connected with the dross bucket and abuts against the flap 51. A circle of sealing rubber is installed between the flap 51 and the dross bucket body 1, and when the flap 51 is vertically upward, the flap 51 abuts against the sealing rubber. By blocking the gap between the flap 51 and the dross bucket body 1 through the sealing rubber, the possibility of water flowing into the dross bucket body 1 when the flap 51 does not move can be reduced.

[0043] Working principle: the dross bucket body 1 is fixed in the secondary sedimentation tank 4, and when the support frame 2 drives the dross scraping plate 3 to move in the secondary sedimentation tank 4, the dross scraping plate 3 collects the dross on the water in the secondary sedimentation tank 4. When the support frame 2 drives the dross scraping plate 3 to move in front of the dross bucket body 1, the end of the lower pressing rod 54 driven by the dross scraping plate 3 abuts against the guide wheel 56, and under the limitation of the groove of the guide wheel 56, the dross scraping plate 3 moves while the lower pressing rod 54 moves along the guide wheel 56. Under the pressing of the lower pressing rod 54, the flap 51 is turned in the dross bucket body 1 under the support of the positioning pin 52, and one side of the dross bucket body 1 is lower than the water surface, and then under the pushing of the dross scraping plate 3 and the driving of the water flow into the dross bucket body 1, the dross enters the dross bucket body 1. Then the dross scraping plate 3 drives the lower pressing rod 54 to move away from above the dross bucket body 1, and at the same time, the reset spring 533 on the reset block two 532 pulls the reset block one 531, and the reset block one 531 drives the flap 51 to vertically upward under the limitation of the positioning pin 52, so that the flap 51 is reset to block the water flow into the dross bucket body 1. The support rods 6 in the dross bucket body 1 limit and block the dross scraping plate 3, and when the dross scraping plate 3 moves past the dross bucket body 1, the dross scraping plate 3 moves along the support rods 6.

Claims

1. A float tank for a secondary sedimentation basin, comprising a float tank body (1), characterized in that: One side of the dross bucket body (1) is provided with two sedimentation tanks (4), the side of the dross bucket body (1) is fixedly connected with the two sedimentation tanks (4), the support frame (2) is installed in the two sedimentation tanks (4), the dross scraping plate (3) is fixed on the support frame (2), and the auxiliary collection mechanism (5) is arranged between the dross scraping plate (3) and the dross bucket body (1). The auxiliary collection mechanism (5) is provided with a turnover plate (51), two symmetrical positioning pins (52) are arranged between the turnover plate (51) and the dross bucket body (1), the turnover plate (51) and the dross bucket body (1) are rotatably connected by the positioning pins (52), the turnover plate (51) is flush with the dross bucket body (1), the reset assembly (53) is arranged between the turnover plate (51) and the dross bucket, and the dross scraping plate (3) is fixed with the downward pressing rod (54).

2. The secondary sedimentation tank scum trough of claim 1, wherein: The reset assembly (53) comprises a reset block one (531) fixed on the turnover plate (51), a reset block two (532) fixed on the dross bucket body (1), and a reset spring (533) arranged between the reset block one (531) and the reset block two (532), and the two ends of the reset spring (533) are fixedly connected with the reset block one (531) and the reset block two (532).

3. The secondary sedimentation tank scum trough of claim 1, wherein: The downward pressing rod (54) is arc-shaped, and the end of the downward pressing rod (54) away from the dross scraping plate (3) is raised.

4. The secondary sedimentation tank scum trough of claim 3, wherein: The turnover plate (51) is fixed with a support seat (55), and the guide wheel (56) is rotatably connected to the support seat (55).

5. The secondary sedimentation tank scum trough of claim 4, wherein: The guide wheel (56) is provided with a groove, and the groove on the guide wheel (56) corresponds to the downward pressing rod (54).

6. The secondary sedimentation tank scum trough of claim 1, wherein: The dross bucket body (1) is fixed with two inclined support rods (6), and the support rods (6) correspond to the dross scraping plate (3).

7. The secondary sedimentation tank scum trough of claim 1, wherein: The turnover plate (51) and the dross bucket body (1) are provided with sealing rubber, and the sealing rubber is fixedly connected with the dross bucket and abuts against the turnover plate (51).

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