A water treatment plant of the cast process

Abstract

The utility model belongs to the CAST craft water purification treatment technical field, specifically is a CAST craft water purification treatment equipment, including treatment pond, the third suction pipe is movably installed in the treatment pond inner chamber, the third suction pipe one end is fixedly connected with the suction pump of mud;Still include the mud removal mechanism for cleaning the sludge in the treatment pond inner chamber;The mud removal mechanism includes reciprocating screw rod, the reciprocating screw rod rotatory mounting is in the treatment pond top, the reciprocating screw rod outer surface is connected with the scraper of screw thread, the scraper sliding installation is in the treatment pond inner chamber, the reciprocating screw rod one end is fixedly connected with the second motor, the second motor fixed mounting is in the treatment pond one side;Through the reciprocating screw rod rotation of second motor output shaft, reciprocating screw rod cooperation slide bar is positioned to the scraper, makes the scraper reciprocating sliding along the treatment pond inner wall, and then realizes the sludge in the treatment pond inner chamber through the suction pump all the purpose of extraction, and finally sludge is discharged through the mud pipe.

Description

Technical Field

[0001] This utility model belongs to the field of CAST process water purification technology, specifically a CAST process water purification equipment. Background Technology

[0002] The CAST method is a circulating activated sludge process. The entire process is carried out in a batch reactor, where the activated sludge process is continuously repeated in aeration and non-aeration phases. It combines the biological reaction process and sludge-water separation process in one tank. The CAST method is a "filling and draining" activated sludge system, where wastewater is treated according to a certain cycle and stages. It is a variation of the SBR process. A CAST process cycle consists of an influent aeration phase, a sedimentation phase, a skimming phase, and an idle phase. A biological selector is installed at the influent, which is a small-volume wastewater-sludge contact zone. Wastewater entering the reactor and activated sludge returned from the main reaction zone mix and come into contact here. Sludge return occurs during the influent phase of the CAST process, stops during the sedimentation phase, and begins sludge discharge during the skimming phase after sedimentation, continuing until sludge discharge is complete.

[0003] A search revealed a patent document with publication number CN220223825U that discloses a CAST process wastewater treatment device, which includes a biological selection tank and a main reaction tank connected to the wastewater inlet. The biological selection tank is equipped with a water distribution system, a first dosing system, and a mixing device. The main reaction tank is equipped with an aeration system driven by an aeration blower. It also includes a buffer interception tank connected to the main reaction tank and an MBR tank containing a membrane cleaning system connected to the buffer interception tank. The bottom of the main reaction tank and the MBR tank are connected to a sludge pipeline. The sludge pipeline is connected to a sludge return pipeline connected to the biological selection tank through a second dosing system. The MBR tank is connected to a self-priming pump and a sterilizer. The sterilizer is connected to a clear water tank connected to the effluent channel through a pipeline.

[0004] The above design can effectively remove nitrogen, phosphorus and organic matter during use, and deeply treat wastewater. The effluent can be discharged after disinfection. The wastewater treatment effect is good, which can improve the wastewater treatment time of the biological selection tank and improve the wastewater treatment effect. However, the sludge precipitated from the wastewater is easy to settle and accumulate in the main reaction tank and is difficult to treat.

[0005] Therefore, a CAST process water purification equipment is proposed to address the above problems. Utility Model Content

[0006] To overcome the shortcomings of existing technologies and solve existing problems, we propose a CAST process water purification equipment.

[0007] The technical solution adopted by this utility model to solve its technical problem is: the CAST process water purification equipment of this utility model includes a treatment tank, a third sludge suction pipe is movably installed in the inner cavity of the treatment tank, and a sludge pump is fixedly connected to one end of the third sludge suction pipe. It also includes a sludge removal mechanism for cleaning the sludge inside the treatment tank; The sludge removal mechanism includes a reciprocating screw, which is rotatably mounted on the top of the treatment tank. A scraper is threadedly connected to the outer surface of the reciprocating screw, and the scraper is slidably mounted in the inner cavity of the treatment tank. A second motor is fixedly connected to one end of the reciprocating screw, and the second motor is fixedly mounted on one side of the treatment tank.

[0008] Preferably, a sliding rod is fixedly installed on the top of the treatment pool, and the sliding rod is slidably connected to the scraper.

[0009] Preferably, one end of the third suction pipe is fixedly connected to the second suction pipe, the top of the second suction pipe is slidably connected to the connecting pipe, and one side of the connecting pipe is fixedly connected to the first suction pipe.

[0010] Preferably, the first suction pipe is fixedly connected to the sludge pump, and a discharge pipe is fixedly connected to one side of the sludge pump.

[0011] Preferably, a connecting plate is fixedly connected to the top of the third sludge suction pipe, an electric telescopic rod is fixedly connected to the top of the connecting plate, a first mounting frame is fixedly connected to the top of the electric telescopic rod, and the first mounting frame is fixedly connected to the treatment pool.

[0012] Preferably, a second mounting bracket is fixedly mounted on both sides of the first mounting bracket. A stirring blade is rotatably mounted on the bottom of the second mounting bracket. A pulley is rotatably connected to the top of the stirring blade. The stirring blade is fixedly connected to the pulley. The two pulleys are driven by a belt. A first motor is fixedly connected to the top of one of the pulleys. The first motor is fixedly mounted on the top of the second mounting bracket.

[0013] The beneficial effects of this utility model are: 1. This utility model provides a CAST process water purification treatment equipment. The output shaft of the first motor drives the pulley to rotate via belt drive. The two pulleys drive the two stirring blades to rotate, mixing the sewage and the chemical solution and accelerating the precipitation of sludge. After the sludge is precipitated and settled, the sludge pump extracts the sludge from the inner cavity of the treatment tank through the third sludge suction pipe. In order to facilitate the extraction of sludge of different heights, the output end of the electric telescopic rod moves up and down with the connecting plate and the third sludge suction pipe, so that the third sludge suction pipe can absorb sludge of different heights. Finally, the sludge is discharged through the sludge outlet pipe.

[0014] 2. This utility model provides a CAST process water purification equipment, in which the output shaft of the second motor drives the reciprocating screw to rotate, and the reciprocating screw, together with the slide bar, limits the scraper, so that the scraper slides back and forth along the inner wall of the treatment tank, thereby achieving the purpose of extracting all the sludge from the inner cavity of the treatment tank. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the mud pump installation structure of this utility model; Figure 3 This is a schematic diagram of the installation structure of the third suction pipe of this utility model; Figure 4 This is a schematic diagram of the connection structure of the electric telescopic rod of this utility model; Figure 5 This is a schematic diagram of the scraper installation structure of this utility model.

[0016] Legend: 1. Treatment tank; 2. First suction pipe; 21. Connecting pipe; 22. Sludge pump; 23. Sludge discharge pipe; 24. Second suction pipe; 25. Third suction pipe; 26. Connecting plate; 27. First mounting frame; 28. Electric telescopic rod; 3. Second mounting frame; 31. Agitator blade; 32. Pulley; 33. Belt; 34. First motor; 4. Reciprocating screw; 41. Second motor; 42. Slide rod; 43. Scraper. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Specific implementation examples are given below.

[0019] Please see Figures 1-5This utility model provides a CAST process water purification treatment equipment, including a treatment tank 1. A third sludge suction pipe 25 is movably installed in the inner cavity of the treatment tank 1, and a sludge pump 22 is fixedly connected to one end of the third sludge suction pipe 25. It also includes a sludge removal mechanism for cleaning the sludge in the inner cavity of the treatment tank 1. The sludge removal mechanism includes a reciprocating screw 4, which is rotatably installed on the top of the treatment tank 1. A scraper 43 is threadedly connected to the outer surface of the reciprocating screw 4, and the scraper 43 is slidably installed in the inner cavity of the treatment tank 1. A second motor 41 is fixedly connected to one end of the reciprocating screw 4, and the second motor 41 is fixedly installed on one side of the treatment tank 1. A slide bar 42 is fixedly installed on the top of the treatment tank 1, and the slide bar 42 is slidably connected to the scraper 43.

[0020] Existing CAST process water purification equipment can effectively remove nitrogen, phosphorus and organic matter during use, and deeply treat wastewater. The effluent can be discharged after disinfection. The wastewater treatment effect is good and can improve the wastewater treatment time of the biological selection tank and improve the wastewater treatment effect. However, the sludge precipitated from the wastewater is easy to settle and accumulate in the main reaction tank and is difficult to treat.

[0021] In use, this utility model transfers wastewater to the inner cavity of treatment tank 1 for sedimentation. After the impurities in the wastewater separate from the water, they settle to the bottom of treatment tank 1. The wastewater at the top is then pumped out to clean the sludge inside treatment tank 1. During use, the sludge pump 22 pumps out the sludge from the inner cavity of treatment tank 1 through the third sludge suction pipe 25. During the sludge extraction process, to prevent the sludge from adhering to the bottom wall of treatment tank 1 and preventing the third sludge suction pipe 25 from sucking out the sludge, the output shaft of the second motor 41 drives the reciprocating screw 4 to rotate. The reciprocating screw 4, in conjunction with the slide bar 42, limits the scraper 43, allowing the second motor 41 to slide back and forth along the bottom wall of treatment tank 1. This allows the sludge on the inner wall of treatment tank 1 to separate from treatment tank 1, thus facilitating the extraction of the sludge by the third sludge suction pipe 25. The bottom of the third sludge suction pipe 25 has several suction holes, through which the sludge enters the inner cavity of the third sludge suction pipe 25 during use.

[0022] Furthermore, such as Figures 2 to 4 As shown, one end of the third suction pipe 25 is fixedly connected to the second suction pipe 24, the top of the second suction pipe 24 is slidably connected to the connecting pipe 21, and one side of the connecting pipe 21 is fixedly connected to the first suction pipe 2. The first suction pipe 2 is fixedly connected to the sludge pump 22, and a sludge discharge pipe 23 is fixedly connected to one side of the sludge pump 22. The top of the third suction pipe 25 is fixedly connected to a connecting plate 26, the top of the connecting plate 26 is fixedly connected to an electric telescopic rod 28, the top of the electric telescopic rod 28 is fixedly connected to a first mounting bracket 27, and the first mounting bracket 27 is fixedly connected to the treatment pool 1.

[0023] In use, to prevent the third suction pipe 25 from failing to completely remove the sludge from the inner cavity of the treatment tank 1 due to its thickness, the electric telescopic rod 28 extends and retracts at its output end, causing the connecting plate 26 to move up and down. The connecting plate 26 further moves the third suction pipe 25 up and down, and the third suction pipe 25 slides with the second suction pipe 24 within the inner cavity of the connecting pipe 21. This allows for adjustment of the height of the third suction pipe 25, enabling it to completely remove sludge of different heights from the inner cavity of the treatment tank 1.

[0024] Furthermore, such as Figure 4 As shown, a second mounting bracket 3 is fixedly mounted on both sides of the first mounting bracket 27. A stirring blade 31 is rotatably mounted on the bottom of the second mounting bracket 3. A pulley 32 is rotatably connected to the top of the stirring blade 31. The stirring blade 31 and the pulley 32 are fixedly connected. The two pulleys 32 are driven by a belt 33. A first motor 34 is fixedly connected to the top of one of the pulleys 32. The first motor 34 is fixedly mounted on the top of the second mounting bracket 3.

[0025] When this utility model is in use, since chemical solutions need to be added after the sewage enters the inner cavity of the treatment tank 1 to accelerate the sludge precipitation in the sewage, in order to speed up the mixing of sewage and chemical solutions, the output shaft of the first motor 34 drives the pulley 32 to rotate. Through the belt 33, the two pulleys 32 can drive the two stirring blades 31 to rotate respectively, mixing the sewage and chemical solutions in the inner cavity of the treatment tank 1. Furthermore, during use, the rising and falling of the third sludge suction pipe 25 will not affect the rotation of the stirring blades 31.

[0026] Working principle: When using this utility model, sewage is first pumped into the inner cavity of treatment tank 1, and then the sewage is mixed with the chemical solution. The output shaft of the first motor 34 drives the pulley 32 to rotate, which is then driven by the belt 33. The two pulleys 32 drive the two stirring blades 31 to rotate, mixing the sewage and chemical solution and accelerating the precipitation of sludge. After the sludge has precipitated and settled, the sludge pump 22 pumps the sludge out of the inner cavity of treatment tank 1 through the third sludge suction pipe 25. In order to facilitate the extraction of sludge of different heights, the output end of the electric telescopic rod 28 moves up and down with the connecting plate 26 and the third sludge suction pipe 25, which allows the third sludge suction pipe 25 to absorb sludge of different heights. Finally, the sludge is discharged through the sludge discharge pipe 23.

[0027] To prevent sludge from sticking to the inner wall of the treatment tank 1, the output shaft of the second motor 41 drives the reciprocating screw 4 to rotate. The reciprocating screw 4, together with the slide bar 42, limits the scraper 43, causing the scraper 43 to slide back and forth along the inner wall of the treatment tank 1, thereby achieving the purpose of extracting all the sludge from the inner cavity of the treatment tank 1.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A CAST process water purification treatment device, comprising a treatment tank (1), wherein a third sludge suction pipe (25) is movably installed in the inner cavity of the treatment tank (1), and a sludge pump (22) is fixedly connected to one end of the third sludge suction pipe (25). It also includes a sludge removal mechanism for cleaning the sludge inside the treatment tank (1); characterized in that The sludge removal mechanism includes a reciprocating screw (4), which is rotatably mounted on the top of the treatment tank (1). A scraper (43) is threadedly connected to the outer surface of the reciprocating screw (4). The scraper (43) is slidably mounted in the inner cavity of the treatment tank (1). A second motor (41) is fixedly connected to one end of the reciprocating screw (4). The second motor (41) is fixedly mounted on one side of the treatment tank (1).

2. The CAST process water purification equipment according to claim 1, characterized in that: A slide bar (42) is fixedly installed on the top of the treatment tank (1), and the slide bar (42) is slidably connected to the scraper (43).

3. The CAST process water purification equipment according to claim 2, characterized in that: The third suction pipe (25) is fixedly connected to a second suction pipe (24) at one end, and a connecting pipe (21) is slidably connected to the top of the second suction pipe (24). The first suction pipe (2) is fixedly connected to one side of the connecting pipe (21).

4. A CAST process water treatment apparatus according to claim 3, wherein: The first suction pipe (2) is fixedly connected to the sludge pump (22), and the sludge pump (22) is fixedly connected to a discharge pipe (23) on one side.

5. A CAST process water purification equipment according to claim 4, characterized in that: The top of the third suction pipe (25) is fixedly connected to a connecting plate (26), the top of the connecting plate (26) is fixedly connected to an electric telescopic rod (28), the top of the electric telescopic rod (28) is fixedly connected to a first mounting bracket (27), and the first mounting bracket (27) is fixedly connected to the treatment pool (1).

6. A CAST process water treatment apparatus according to claim 5, wherein: The first mounting bracket (27) is fixedly mounted on both sides of the second mounting bracket (3). The bottom of the second mounting bracket (3) is rotatably mounted with a stirring blade (31). The top of the stirring blade (31) is rotatably connected with a pulley (32). The stirring blade (31) and the pulley (32) are fixedly connected. The two pulleys (32) are driven by a belt (33). The top of one of the pulleys (32) is fixedly connected with a first motor (34). The first motor (34) is fixedly mounted on the top of the second mounting bracket (3).

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