A mud scraper

Abstract

The utility model discloses a kind of mud scrapers, comprising: multiple sludge tanks are arranged on the bottom wall of sedimentation tank in front-rear direction interval, skimming tube is arranged at the front end position of sedimentation tank, mud scraping assembly is movably arranged in sedimentation tank to scrape the sludge of sedimentation tank pool bottom to sludge tank, while the dross on the surface of sedimentation tank is scraped to skimming tube;Water inlet gate, water inlet gate is arranged on the water inlet end of water inlet channel;Sludge concentration meter, sludge concentration meter is suitable for detecting the sludge concentration condition of external sewage to control the switch of water inlet gate according to the sludge concentration condition of external sewage;Water outlet gate;Water outlet gate is arranged on the water outlet end of water outlet channel;Water quality sensor, water quality sensor is arranged in sedimentation tank to detect the water quality in sedimentation tank to control the switch of water outlet gate according to the water quality condition in sedimentation tank. Its simple structure, not only can improve the processing efficiency of sewage, reduce energy consumption and operating cost, while also improve water quality.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a sludge scraper. Background Technology

[0002] Modern wastewater treatment processes continuously demand higher levels of automation and precision in equipment. Chain-type sludge scrapers are sludge scraping devices suitable for surface skimming and bottom scraping in rectangular primary and secondary sedimentation tanks, as well as surface skimming and bottom scraping in circular tanks, and surface skimming applications for various tank shapes.

[0003] With increasing environmental awareness and stricter wastewater treatment standards, traditional sludge scraper control technology is no longer sufficient to meet the operational needs of modern wastewater treatment plants. Furthermore, as a crucial component of wastewater treatment, the synchronous control of the sludge scraper in a horizontal flow secondary sedimentation tank directly impacts sludge treatment efficiency and effluent quality.

[0004] Therefore, it is necessary to propose a sludge scraper structure for secondary sedimentation tanks to achieve better production efficiency. Summary of the Invention

[0005] This utility model aims to at least partially solve one of the problems existing in the prior art. To this end, this utility model proposes a sludge scraper with a simple structure that can not only improve the efficiency of sewage treatment, thereby reducing energy consumption and operating costs, but also improve the quality of effluent.

[0006] The above objective is achieved through the following technical solution:

[0007] A sludge scraper, comprising:

[0008] Multiple sedimentation tanks are arranged side by side. On one side of each sedimentation tank, an inlet channel and an outlet channel are arranged sequentially from the outside to the inside. The inlet end of the inlet channel is connected to external sewage. Multiple water passages are opened on the bottom wall of the inlet channel so that the outlet end of the inlet channel is connected to the sedimentation tank. The water in the sedimentation tank is output to the outside through the outlet channel.

[0009] The sludge scraping assembly has multiple sludge troughs spaced at intervals along the front-back direction on the bottom wall of the sedimentation tank, and a skimming pipe is provided at the front end of the sedimentation tank. The sludge scraping assembly is movably installed in the sedimentation tank to scrape the sludge at the bottom of the sedimentation tank into the sludge troughs, and at the same time scrape the scum on the surface of the sedimentation tank into the skimming pipe.

[0010] An inlet gate is provided at the inlet end of the inlet channel;

[0011] A sludge concentration meter, which is suitable for detecting the sludge concentration of external sewage in order to control the opening and closing of the inlet gate based on the sludge concentration of the external sewage.

[0012] A water outlet gate; the water outlet gate is installed at the water outlet end of the water outlet channel;

[0013] A water quality sensor is installed in the sedimentation tank to detect the water quality in the sedimentation tank and control the opening and closing of the outlet gate according to the water quality in the sedimentation tank.

[0014] In some embodiments, the sludge scraping assembly includes a drive wheel, a drive motor, a first driven wheel, a second driven wheel, a third driven wheel, a transmission chain, and a plurality of scrapers. The drive wheel is located at the upper rear end of one side of the sedimentation tank. The output end of the drive motor is connected to the drive wheel to drive it to rotate. The first driven wheel is located at the lower rear end of one side of the sedimentation tank. The second driven wheel is located at the upper front end of one side of the sedimentation tank. The third driven wheel is located at the lower front end of one side of the sedimentation tank. The transmission chain is respectively sleeved on the drive wheel, the first driven wheel, the second driven wheel, and the third driven wheel. One end of each of the plurality of scrapers is connected to the transmission chain on one side of the sedimentation tank, and the other end is connected to the transmission chain on the other side of the sedimentation tank.

[0015] In some embodiments, a sludge discharge channel connected to the outside is also included. The sludge discharge channel is disposed on the side of the sedimentation tank away from the water inlet channel. The sludge discharge channel extends along the front-back direction of the sedimentation tank so that multiple sludge tanks are connected to the sludge discharge channel. A sludge discharge valve is provided on the sludge discharge channel to control the opening and closing of the sludge discharge channel.

[0016] In some embodiments, a scum well and a scum pipe are also included, wherein the scum well is located at an external location of the sedimentation tank and the scum pipe connects the scum well to the skimming pipe.

[0017] In some embodiments, a venting well and a venting pipe are also included, wherein the venting well is located at an external location of the sedimentation tank and the venting pipe connects the venting well to the sedimentation tank.

[0018] In some embodiments, the height of the top wall of the outlet channel is lower than the height of the top wall of the inlet channel.

[0019] In some embodiments, an outlet weir plate is also included, which is disposed on the end of the outlet channel away from the inlet channel.

[0020] In some embodiments, a scum baffle is also included, which is disposed at an external position of the outlet weir plate.

[0021] In some embodiments, a skimmer is also included, which is disposed on the skimmer tube.

[0022] Compared with the prior art, the present invention has at least the following beneficial effects:

[0023] 1. The sludge scraper of this utility model has a simple structure, which can not only improve the sewage treatment efficiency, thereby reducing energy consumption and operating costs, but also improve the quality of effluent. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the sludge scraper in an embodiment of this utility model;

[0026] Figure 2 This is a cross-sectional view of the sludge scraper in an embodiment of this utility model;

[0027] Figure 3 This is a cross-sectional view of the sludge scraper part of the embodiment of this utility model. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of the claimed invention.

[0030] Example:

[0031] like Figures 1 to 3 As shown, this embodiment provides a sludge scraper, including:

[0032] Multiple sedimentation tanks 1 are arranged side by side. On one side of the sedimentation tank 1, an inlet channel 11 and an outlet channel 12 are arranged sequentially from the outside to the inside. The inlet end of the inlet channel 11 is connected to the external sewage. Multiple water passages 13 are opened on the bottom wall of the inlet channel 11 so that the outlet end of the inlet channel 11 is connected to the sedimentation tank 1. The water in the sedimentation tank 1 is output to the outside through the outlet channel 12.

[0033] The sludge scraping assembly 2 has multiple sludge troughs 14 spaced along the front-back direction on the bottom wall of the sedimentation tank 1, and a skimming pipe 15 is provided at the front end of the sedimentation tank 1. The sludge scraping assembly 2 is movably installed in the sedimentation tank 1 to scrape the sludge at the bottom of the sedimentation tank 1 into the sludge troughs 14, and at the same time scrape the scum on the surface of the sedimentation tank 1 into the skimming pipe 15.

[0034] Inlet gate 3 is installed at the inlet end of the inlet channel 11;

[0035] The sludge concentration meter is suitable for detecting the sludge concentration of external sewage in order to control the opening and closing of the inlet gate 3 based on the sludge concentration of the external sewage.

[0036] Water outlet gate; the water outlet gate is installed at the outlet end of the water outlet channel 12;

[0037] A water quality sensor is installed in the sedimentation tank 1 to detect the water quality in the sedimentation tank 1 and control the opening and closing of the outlet gate according to the water quality in the sedimentation tank 1.

[0038] In this embodiment, multiple sedimentation tanks 1 are arranged side by side. Each sedimentation tank 1 has an inlet channel 11 and an outlet channel 12 arranged sequentially from left to right on its left side end. Since an aerobic tank is located upstream of the sedimentation tank 1, the aerobic tank removes organic matter from the wastewater to purify the water. The inlet end of the inlet channel 11 is connected to the outlet end of the aerobic tank, allowing the inlet end of the inlet channel 11 to connect with external wastewater. A sludge concentration meter is used to detect the sludge concentration of the external wastewater, and the opening or closing of the inlet gate 3 is controlled based on the sludge concentration of the external wastewater, thereby guiding the external wastewater into the inlet channel 11. That is, the wastewater treated by the aerobic tank is introduced into the inlet channel 11. Multiple water passages 13 are provided on the bottom wall of the inlet channel 11. The external wastewater entering the inlet channel 11 flows into the sedimentation tank 1 through the water passages 13. The water passages are spaced apart along the front-to-back direction on the bottom wall of the sedimentation tank 1. Multiple sludge tanks 14 are provided, extending along the left and right sides of the sedimentation tank 1. A skimming pipe 15 is installed at the front end of the sedimentation tank 1, thereby slowing down the flow rate of sewage through the sedimentation tank 1, allowing solid particles such as activated sludge to gradually settle to the bottom of the sedimentation tank 1 to form a sludge layer. Then, the sludge at the bottom of the sedimentation tank 1 is scraped into the sludge tank 14 by the sludge scraping assembly 2, while the scum on the surface of the sedimentation tank 1 is scraped into the skimming pipe 15. The treated water is then monitored by a water quality sensor to control the opening and closing of the effluent gate based on the water quality. The treated water is then discharged out through the effluent channel 12 at the upper end of the sedimentation tank 1 to enter subsequent treatment stages or to be discharged directly. Its simple structure not only improves the sewage treatment efficiency, thereby reducing energy consumption and operating costs, but also improves the quality of the effluent.

[0039] Furthermore, the sludge scraping assembly 2 includes a drive wheel 21, a drive motor 22, a first driven wheel 23, a second driven wheel 24, a third driven wheel 25, a transmission chain 26, and multiple scrapers 27. The drive wheel 21 is located at the upper rear end of one side of the sedimentation tank 1. The output end of the drive motor 22 is connected to the drive wheel 21 to drive the drive wheel 21 to rotate. The first driven wheel 23 is located at the lower rear end of one side of the sedimentation tank 1. The second driven wheel 24 is located at the upper front end of one side of the sedimentation tank 1. The third driven wheel 25 is located at the lower front end of one side of the sedimentation tank 1. The transmission chain 26 is respectively sleeved on the drive wheel 21, the first driven wheel 23, the second driven wheel 24, and the third driven wheel 25. One end of each of the multiple scrapers 27 is connected to the transmission chain 26 on one side of the sedimentation tank 1, and the other end is connected to the transmission chain 26 on the other side of the sedimentation tank 1.

[0040] In this embodiment, a drive wheel 21 is respectively installed at the upper rear end of the left and right sides of the sedimentation tank 1, and a drive motor 22 is respectively installed on both sides of the sedimentation tank 1. The output end of the drive motor 22 is connected to the drive wheel 21 so that the drive motor 22 drives the drive wheel 21 to rotate, thereby synchronously driving the drive wheel 21 on both sides of the sedimentation tank 1 through a drive motor 22, thus synchronizing the rotation of the drive wheel 21 on both sides of the sedimentation tank 1. The first driven wheel 23 is installed at the lower rear end of one side of the sedimentation tank 1, the second driven wheel 24 is installed at the upper front end of one side of the sedimentation tank 1, and the third driven wheel 25 is installed at the lower front end of one side of the sedimentation tank 1. The transmission chain 2 6 are respectively mounted on the drive wheel 21, the first driven wheel 23, the second driven wheel 24, and the third driven wheel 25. In this way, a single drive motor 22 can drive the drive wheel 21 to rotate. Then, the drive wheel 21 drives the transmission chain 26 to rotate synchronously. Through the coordinated action of the drive wheel 21, the first driven wheel 23, the second driven wheel 24, the third driven wheel 25, and the transmission chain 26, the transmission chain 26 is made to rotate cyclically around the circumference of the sedimentation tank 1. Since multiple scrapers 27 are respectively set on the transmission chain 26 on the left and right sides of the sedimentation tank 1, the operation of the transmission chain 26 on the left and right sides drives the multiple scrapers 27 to move synchronously, thereby making the operation of the multiple scrapers 27 synchronized.

[0041] Preferably, it also includes a sludge discharge channel 9 connected to the outside. The sludge discharge channel 9 is set on the side of the sedimentation tank 1 away from the water inlet channel 11. The sludge discharge channel 9 extends along the front and back direction of the sedimentation tank 1 so that multiple sludge tanks 14 are connected to the sludge discharge channel 9. A sludge discharge valve is provided on the sludge discharge channel 9 to control the opening and closing of the sludge discharge channel 9.

[0042] Specifically, it also includes a scum well 4 and a scum pipe, wherein the scum well 4 is located at the external position of the sedimentation tank 1, and the scum well 4 is connected to the skimming pipe 15 through the scum pipe.

[0043] Preferably, the system also includes a venting well 5 and a venting pipe, wherein the venting well 5 is located at an external position of the sedimentation tank 1, and the venting pipe connects the venting well 5 to the sedimentation tank 1.

[0044] Furthermore, the height of the top wall of the water outlet channel 12 is lower than the height of the top wall of the water inlet channel 11.

[0045] Specifically, it also includes an outlet weir plate 6, which is disposed on the side end of the outlet channel 12 away from the inlet channel 11.

[0046] Preferably, it also includes a scum baffle 7, which is disposed at the outer position of the outlet weir plate 6.

[0047] Specifically, it also includes a skimmer 8, which is disposed on the skimmer tube 15.

[0048] In this embodiment, an inlet channel 11 and an outlet channel 12 are arranged sequentially from left to right on the left side of each sedimentation tank 1. An outlet weir plate 6 is provided on the side of the outlet channel 12 away from the inlet channel 11. The water level and flow rate of the sedimentation tank 1 can be adjusted by the outlet weir plate 6. At the same time, a scum baffle 7 is provided at the outer position of the outlet weir plate 6 to prevent scum on the water surface in the sedimentation tank 1 from entering the outlet channel 12.

[0049] The above are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A sludge scraper, characterized in that, include: Multiple sedimentation tanks (1) are arranged side by side. On one side of each sedimentation tank (1), an inlet channel (11) and an outlet channel (12) are arranged sequentially from the outside to the inside. The inlet end of the inlet channel (11) is connected to external sewage. Multiple water passages (13) are provided on the bottom wall of the inlet channel (11) so that the outlet end of the inlet channel (11) is connected to the sedimentation tank (1). The water in the sedimentation tank (1) is output to the outside through the outlet channel (12). The sludge scraping assembly (2) has multiple sludge troughs (14) spaced apart along the front-back direction on the bottom wall of the sedimentation tank (1) and a skimming pipe (15) at the front end of the sedimentation tank (1). The sludge scraping assembly (2) is movably installed in the sedimentation tank (1) to scrape the sludge at the bottom of the sedimentation tank (1) into the sludge troughs (14) and at the same time scrape the scum on the surface of the sedimentation tank (1) into the skimming pipe (15). Water inlet gate (3), the water inlet gate (3) is installed on the water inlet end of the water inlet channel (11); A sludge concentration meter, which is suitable for detecting the sludge concentration of external sewage in order to control the opening and closing of the inlet gate (3) according to the sludge concentration of external sewage. Outflow gate; The water outlet gate is installed at the water outlet end of the water outlet channel (12); A water quality sensor is installed in the sedimentation tank (1) to detect the water quality in the sedimentation tank (1) and control the opening and closing of the outlet gate according to the water quality in the sedimentation tank (1).

2. A sludge scraper according to claim 1, characterized in that, The sludge scraping assembly (2) includes a drive wheel (21), a drive motor (22), a first driven wheel (23), a second driven wheel (24), a third driven wheel (25), a transmission chain (26), and multiple scrapers (27). The drive wheel (21) is located at the upper rear end of one side of the sedimentation tank (1). The output end of the drive motor (22) is connected to the drive wheel (21) to drive the drive wheel (21) to rotate. The first driven wheel (23) is located at the lower rear end of one side of the sedimentation tank (1). The second driven wheel (24) is located at the lower rear end of one side of the sedimentation tank (1). The driven wheel (24) is located at the upper front end of one side of the sedimentation tank (1), and the third driven wheel (25) is located at the lower front end of one side of the sedimentation tank (1). The transmission chain (26) is respectively sleeved on the drive wheel (21), the first driven wheel (23), the second driven wheel (24), and the third driven wheel (25). One end of each of the multiple scrapers (27) is connected to the transmission chain (26) on one side of the sedimentation tank (1), and the other end is connected to the transmission chain (26) on the other side of the sedimentation tank (1).

3. A sludge scraper according to claim 1, characterized in that, It also includes a sludge discharge channel (9) connected to the outside. The sludge discharge channel (9) is located on the side of the sedimentation tank (1) away from the water inlet channel (11). The sludge discharge channel (9) extends along the front and back direction of the sedimentation tank (1) so that multiple sludge tanks (14) are connected to the sludge discharge channel (9). A sludge discharge valve is provided on the sludge discharge channel (9) to control the opening and closing of the sludge discharge channel (9).

4. A sludge scraper according to claim 1, characterized in that, It also includes a scum well (4) and a scum pipe, wherein the scum well (4) is located at an external position of the sedimentation tank (1) and the scum pipe connects the scum well (4) to the skimming pipe (15).

5. A sludge scraper according to claim 1, characterized in that, It also includes a venting well (5) and a venting pipe, wherein the venting well (5) is located at an external position of the sedimentation tank (1), and the venting pipe connects the venting well (5) to the sedimentation tank (1).

6. A sludge scraper according to claim 1, characterized in that, The height of the top wall of the water outlet channel (12) is lower than the height of the top wall of the water inlet channel (11).

7. A sludge scraper according to claim 1, characterized in that, It also includes an outlet weir plate (6), which is disposed on the side end of the outlet channel (12) away from the inlet channel (11).

8. A sludge scraper according to claim 7, characterized in that, It also includes a scum baffle (7), which is located at the outer position of the outlet weir plate (6).

9. A sludge scraper according to claim 1, characterized in that, It also includes a skimmer (8), which is disposed on the skimmer tube (15).

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