Stirring dosing mechanism and sewage treatment device thereof

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a stirring and dosing mechanism and a sewage treatment device thereof, which comprise a water inlet pipe, a feeding pipe for conveying and stirring liquid medicine, a collecting pump for pressurizing and mixing sewage and the liquid medicine, and a motor for providing power, the feeding pipe comprises a pneumatic pump for pressurizing and feeding liquid medicine into the water pipe, a sleeve for stirring and accelerating the effect of the liquid medicine, a rotating wheel for driving the sleeve to rotate and a one-way valve for preventing sewage from flowing back into the feeding pipe, the feeding pipe is inserted from the upper part of the water inlet pipe, and the direction of a discharge port of the feeding pipe is opposite to the water flow direction in the water inlet pipe; one side of the collecting pump is connected with the water inlet end of the water inlet pipe, and the motor is installed on the other side of the collecting pump. According to the utility model, the liquid medicine inlet is formed in the sleeve, so that liquid medicine is immediately stirred after being in contact with sewage and enters the water inlet pipe through convection of the liquid medicine, crystals are ensured to be flushed out of the pipeline by water flow, and the crystals are intensively recovered by using the settling box, so that the whole device is conveniently and quickly cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a stirring and dosing mechanism and a sewage treatment device thereof. Background Art

[0002] In the current sewage treatment process, the addition of chemicals in the magnetic coagulation process is one of the important means to ensure that the water quality meets the standards. By adding an appropriate amount of chemical agents, the suspended solids and total phosphorus in the sewage can be effectively reduced, so that it can meet the discharge standards. However, in the current daily operation, due to frequent blockages of equipment, the instability of chemical addition occurs from time to time, and the equipment needs to be dismantled and cleared more frequently, resulting in unstable chemical dosage, which not only causes fluctuations in the effluent water quality and has an adverse effect on the operation of the sewage treatment plant, but also causes waste of chemicals and increases operating costs and maintenance costs. Therefore, a stirring and dosing mechanism and its sewage treatment device are needed to solve the problem.

[0003] Chinese patent CN117298681A discloses a sewage treatment device, including a treatment box, a first water inlet is provided at the top of the treatment box, a first water outlet is provided at the bottom of the treatment box, a coarse filter plate, a mixing box and a fine filter plate are sequentially embedded in the treatment box from top to bottom, two mixing boxes are provided and arranged in sequence in the horizontal direction, and the two mixing boxes divide the interior of the treatment box into two upper and lower cavities; a second water inlet is provided at the top of the mixing box, a second water outlet is provided at the bottom of the mixing box, and a solenoid valve is installed on the second water outlet; a stirring mechanism for stirring the interior of the mixing box, a buoyancy mechanism for controlling the opening and closing of the second water inlet by lifting and lowering, a dosing mechanism for dosing medicine into the interior of the mixing box, and a power supply mechanism for powering the stirring mechanism, and the dosing mechanism and the power supply mechanism are both connected to the buoyancy mechanism. This scheme can improve the treatment efficiency of sewage.

[0004] There are still several points for improvement in the above scheme: the stirring mechanism is far away from the drug outlet, and the uniform diffusion of the drug solution cannot be guaranteed; the drug solution reacts as soon as it contacts the sewage, and some crystals are easily accumulated in the pipe leading to the filter plate, which is not conducive to long-term use. Utility Model Content

[0005] In order to solve the problems of the prior art, the utility model provides a stirring and dosing mechanism, comprising a water inlet pipe and a feeding pipe for conveying and stirring medicine, a collecting pump for pressurizing and mixing sewage and medicine, and a motor for providing power, the feeding pipe comprises a pneumatic pump for pressurizing the medicine and feeding it into the water pipe, a sleeve for stirring and accelerating the effectiveness of the medicine, a wheel for driving the sleeve to rotate, and a one-way valve for preventing sewage from flowing back into the feeding pipe, the feeding pipe is inserted from above the water inlet pipe, and its discharge port faces the direction opposite to the water flow direction in the water inlet pipe, one side of the collecting pump is connected to the water inlet end of the water inlet pipe, the motor is installed on the other side of the collecting pump, the pneumatic pump is arranged on the outside of the water inlet pipe and connected to the feeding pipe, the sleeve is rotatably installed on the discharge port of the feeding pipe, the one-way valve is installed at the discharge port of the feeding pipe, and the wheel rotates together with the collecting pump and is connected to the sleeve.

[0006] Preferably, the sleeve includes a fitting ring, stirring blades and an annular interface, the stirring blade array is arranged on the outside of the sleeve, the annular interface is arranged on the feeding tube, and the fitting ring is arranged at the discharge port of the feeding tube.

[0007] Preferably, the impeller includes blades, a medicine outlet groove and connecting rods, the blade array is arranged on the arc surface of the impeller, several connecting rods are arranged in a ring at one end of the impeller, the other end of the connecting rod is connected to the sleeve, and a medicine outlet groove is formed between every two connecting rods.

[0008] Preferably, the one-way valve includes a mounting frame, a top ball, a telescopic rod, and a spring. The mounting frame is arranged inside the feeding tube, one end of the telescopic rod is connected to the mounting frame, and the other end is connected to the top ball. The spring is surrounded by the outside of the telescopic rod.

[0009] Preferably, the collecting pump includes a pump wheel, a rotating shaft, a sewage pipe and a flange pipe. The pump wheel is installed at the center of the collecting pump. The rotating shaft passes through the center of the pump wheel and is respectively connected to the casing and the motor. The sewage pipe is arranged on the side of the collecting pump, and the flange pipe is connected to the water inlet pipe.

[0010] A sewage treatment device includes a sedimentation tank, a pressure pump, a drain pipe and the stirring and dosing mechanism mentioned above. The sedimentation tank is connected to the other end of the water inlet pipe opposite to the collection pump, the drain pipe is connected to the side of the sedimentation tank, and the pressure pump is arranged on the drain pipe.

[0011] Preferably, the sedimentation box includes a support frame, a first filter screen and a second filter screen, the support frame is fixedly installed inside the sedimentation box, the first filter screen is arranged on the support frame, and the second filter screen is installed at the pipe mouth of the drain pipe and is located in the sedimentation box.

[0012] Preferably, the first filter screen comprises a frame and a handle, the frame surrounds the outer side of the first filter screen, and the handle is vertically mounted on the frame.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model sets the medicine inlet on the sleeve to ensure that the medicine starts to be stirred immediately after contacting the sewage. Specifically, the switch closure of the sleeve is controlled by the nesting of the one-way valve and the fitting ring. At the same time, the sleeve rotates to stir, which further accelerates the mixing of the medicine and the sewage.

[0015] 2. The utility model uses a pneumatic pump to pressurize the liquid medicine and send it into the water inlet pipe by convection, so that the pressurized liquid medicine and sewage are fully mixed and stirred while ensuring that the crystals can be flushed out of the pipe by the water flow. Specifically, the liquid medicine enters the sewage through the discharge port in the opposite direction of the sewage flow, which accelerates the diffusion of the liquid medicine in the unit area.

[0016] 3. The utility model uses a sedimentation box to collect and recover crystals, which facilitates the rapid cleaning of the entire device. Specifically, a handle is used to lift the frame so that the crystals accumulated on the first filter screen can be quickly poured out of the sedimentation box to ensure the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereoscopic diagram of a stirring and dosing mechanism and a sewage treatment device thereof.

[0018] Figure 2 The invention discloses a cross-sectional view of a stirring and dosing mechanism and a water inlet pipe in a sewage treatment device.

[0019] Figure 3 The invention discloses a stereoscopic diagram of a stirring and dosing mechanism and a feeding pipe in a sewage treatment device.

[0020] Figure 4 The invention discloses a stereoscopic diagram of a stirring and dosing mechanism and a one-way valve in a sewage treatment device.

[0021] Figure 5 It is a stereoscopic diagram of a stirring and dosing mechanism and a collecting pump in a sewage treatment device.

[0022] Figure 6 The invention discloses a cross-sectional view of a stirring and dosing mechanism and a sedimentation box net in a sewage treatment device.

[0023] Figure 7 The present invention is a stereoscopic diagram of a stirring and dosing mechanism and a first filter screen in a sewage treatment device.

[0024] The numbers in the figure are: 1. water inlet pipe; 2. feed pipe; 3. pneumatic pump; 4. sleeve; 41. fitting ring; 42. stirring blade; 43. annular interface; 5. impeller; 51. impeller; 52. medicine outlet trough; 53. connecting rod; 6. one-way valve; 61. mounting frame; 62. telescopic rod; 63. top ball; 64. spring; 7. collecting pump; 71. pump wheel; 72. rotating shaft; 73. sewage pipe; 74. flange pipe; 8. motor; 9. sedimentation tank; 91. support frame; 92. first filter screen; 921. frame; 922. handle; 93. second filter screen; 10. pressure pump; 11. drain pipe. DETAILED DESCRIPTION

[0025] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] See also Figure 1 to Figure 7 As shown, a stirring and dosing mechanism includes a water inlet pipe 1 and a feed pipe 2 for conveying and stirring medicine, a collecting pump 7 for pressurizing and mixing sewage and medicine, and a motor 8 for providing power. The feed pipe 2 includes a pneumatic pump 3 for pressurizing the medicine and feeding it into the water pipe 1, a sleeve 4 for stirring and accelerating the effectiveness of the medicine, a wheel 5 for driving the sleeve 4 to rotate, and a one-way valve 6 for preventing sewage from flowing back into the feed pipe 2. The feed pipe 2 is inserted from the top of the water inlet pipe 1, and its discharge port faces the opposite direction of the water flow in the water inlet pipe 1. One side of the collecting pump 7 is connected to the water inlet end of the water inlet pipe 1, and the motor 8 is installed on the other side of the collecting pump 7. The pneumatic pump 3 is arranged on the outside of the water inlet pipe 1 and connected to the feed pipe 2. The sleeve 4 is rotatably installed on the discharge port of the feed pipe 2, the one-way valve 6 is installed at the discharge port of the feed pipe 2, and the wheel 5 rotates together with the collecting pump 7 and is connected to the sleeve 4.

[0027] The dosing mechanism uses a motor 8 to power a collection pump 7 to deliver sewage into a water pipe 1, and then uses a pneumatic pump 3 to pressurize the purification solution from a feed pipe 2 into the water pipe 1. The solution enters the sewage through a discharge port in the opposite direction of the sewage flow, which accelerates the diffusion of the solution per unit area. At the same time, the sleeve 4 rotates to stir and further accelerates the mixing of the solution and the sewage. The impeller 5 drives the sleeve 4 to rotate as the collection pump 7 rotates. At the same time, the impeller 5 causes the sewage to form a vortex in the water inlet pipe 1, avoiding the accumulation and blockage of impurities in the sewage and the uneven diffusion of the solution. Since the sewage may enter the feed pipe 2 in the reverse direction, a one-way valve 6 is used to avoid sewage backflow. At the same time, the pneumatic pump 3 is pressurized to control the switch of the one-way valve 6 to ensure that the solution can flow out of the feed pipe 2.

[0028] See also Figure 1 to Figure 3As shown, the sleeve 4 includes a fitting ring 41, stirring blades 42 and an annular interface 43, the stirring blades 42 are arranged in an array on the outside of the sleeve 4, the annular interface 43 is arranged on the feeding tube 2, and the fitting ring 41 is arranged at the discharge port of the feeding tube 2.

[0029] The fitting ring 41 is used for semi-enclosed sleeve 4. The one-way valve 6 and the fitting ring 41 are nested to control the switch closure of the sleeve 4 to prevent sewage from entering the feeding pipe 2 in reverse. The stirring blade 42 rotates with the rotation of the sleeve 4 to accelerate the reaction and mixing of the medicine and sewage. The annular interface 43 provides installation positioning for the sleeve 4 and enables the sleeve 4 to rotate on the annular interface 43.

[0030] See also Figure 3 As shown, the runner 5 includes blades 51, a medicine outlet groove 52 and a connecting rod 53. The blades 51 are arranged in an array on the arc surface of the runner 5. Several connecting rods 53 are arranged in a ring at one end of the runner 5. The other end of the connecting rod 53 is connected to the sleeve 4, and a medicine outlet groove 52 is formed between every two connecting rods 53.

[0031] The size of the impeller 51 covers the entire inner diameter of the water inlet pipe 1, ensuring that the sewage can only enter the water inlet pipe 1 along the path of the impeller 51 and with the rotation of the impeller 5, facilitating the formation of a vortex, and using the suction of the vortex to bring impurities in the sewage and purified crystals out of the water inlet pipe 1. In order to prevent the sewage from directly impacting the one-way valve 6, a connecting rod 53 is used to connect the sleeve 4 and the impeller 5 to allow the medicine to flow out of the medicine outlet trough 52.

[0032] See also Figure 3 and Figure 4 As shown, the one-way valve 6 includes a mounting frame 61, a top ball 63, a telescopic rod 62, and a spring 64. The mounting frame 61 is arranged inside the feeding tube 2, one end of the telescopic rod 62 is connected to the mounting frame 61, and the other end is connected to the top ball 63, and the spring 64 is surrounded on the outside of the telescopic rod 62.

[0033] The mounting frame 61 is used to position the entire one-way valve 6. The top ball 63 is nested with the fitting ring 41 to close the sleeve 4. When the pneumatic pump 3 pressurizes the feeding pipe 2, the water pressure of the medicine will flush the top ball 63 and enter the water inlet pipe 1. The telescopic rod 62 is used to prevent the top ball 63 from falling off. The spring 64 provides the top ball 63 with a reset capability to facilitate the reclosing of the sleeve 4.

[0034] See also Figure 2 to Figure 5 As shown, the collecting pump 7 includes a pump wheel 71, a rotating shaft 72, a sewage pipe 73 and a flange pipe 74. The pump wheel 71 is installed at the center of the collecting pump 7. The rotating shaft 72 passes through the center of the pump wheel 71 and is respectively connected to the casing 4 and the motor 8. The sewage pipe 73 is arranged on the side of the collecting pump 7, and the flange pipe 74 is connected to the water inlet pipe 1.

[0035] The pump wheel 71 is used to pressurize the sewage and send it into the water inlet pipe 1. The rotating shaft 72 is used to connect the impeller 5 and the motor 8, and make the impeller 5 rotate together with the pump wheel 71. The sewage pipe 73 provides a guide for the sewage to enter the collection pump 7. The flange pipe 74 is used for quickly installing and disassembling the water inlet pipe 1, which is convenient for regular maintenance.

[0036] See also Figure 1 to Figure 7 As shown, a sewage treatment device includes a sedimentation tank 9, a pressure pump 10, a drain pipe 11 and the stirring and dosing mechanism mentioned above. The sedimentation tank 9 is connected to the other end of the water inlet pipe 1 opposite to the collecting pump 7, the drain pipe 11 is connected to the side of the sedimentation tank 9, and the pressure pump 10 is arranged on the drain pipe 11.

[0037] When the medicine and sewage are mixed and reacted, crystals will be produced. The accumulation of crystals will cause pipe blockage. Therefore, a sedimentation tank 9 is used to collect and process these blockages. The clean water after filtration is discharged from the drain pipe 11. Since the water pressure in the sedimentation tank 9 is not enough to send the purified water into the pipeline, a pressure pump 10 is used to pressurize to ensure the flow of water in the drain pipe 11.

[0038] See also Figure 6 and Figure 7 As shown, the sedimentation box 9 includes a support frame 91, a first filter screen 92 and a second filter screen 93. The support frame 91 is fixedly installed inside the sedimentation box 9, the first filter screen 92 is arranged on the support frame 91, and the second filter screen 93 is installed at the pipe mouth of the drain pipe 11 and is in the sedimentation box 9.

[0039] The support frame 91 is used to hold up the first filter screen 92 to ensure that it is higher than the entrance of the drain pipe 11 so that the purified water flow can enter the drain pipe 11. The second filter screen 93 performs secondary filtration at the pipe mouth of the drain pipe 11 to improve the purity of the water flow in the drain pipe 11.

[0040] See also Figure 7 As shown, the first filter screen 92 includes a frame 921 and a handle 922 . The frame 921 surrounds the outer side of the first filter screen 92 , and the handle 922 is vertically mounted on the frame 921 .

[0041] Since a large amount of crystals will accumulate in the sedimentation box 9, the handle 922 is used to lift the frame 921, so that the crystals accumulated on the first filter screen 92 can be quickly poured out of the sedimentation box 9 to ensure the filtering effect.

[0042] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A stirring and dosing mechanism, comprising a water inlet pipe (1), a feed pipe (2) for conveying and stirring the medicine solution, a collection pump (7) for pressurizing and mixing the sewage and the medicine solution, and a motor (8) for providing power; It is characterized in that The feed pipe (2) comprises an air pump (3) for pressurizing the medicine and feeding it into the water pipe (1), a sleeve (4) for stirring and accelerating the effectiveness of the medicine, a wheel (5) for driving the sleeve (4) to rotate, and a one-way valve (6) for preventing sewage from flowing back into the feed pipe (2). The feed pipe (2) is inserted from the top of the water inlet pipe (1), and its outlet faces the direction opposite to the water flow direction in the water inlet pipe (1). One side of the collection pump (7) is connected to the water inlet end of the water inlet pipe (1), and the motor (8) is installed on the other side of the collection pump (7). The air pump (3) is arranged on the outside of the water inlet pipe (1) and connected to the feed pipe (2). The sleeve (4) is rotatably installed on the outlet of the feed pipe (2), and the one-way valve (6) is installed at the outlet of the feed pipe (2). The wheel (5) rotates together with the collection pump (7) and is connected to the sleeve (4).

2. A stirring and dosing mechanism according to claim 1, characterized in that: The sleeve (4) comprises a fitting ring (41), stirring blades (42) and an annular interface (43); the stirring blades (42) are arranged in an array on the outside of the sleeve (4); the annular interface (43) is arranged on the feeding pipe (2); and the fitting ring (41) is arranged at the discharge port of the feeding pipe (2).

3. A stirring and dosing mechanism according to claim 1, characterized in that: The rotating wheel (5) comprises a wheel blade (51), a medicine outlet groove (52) and a connecting rod (53); the wheel blade (51) is arranged in an array on the arc surface of the rotating wheel (5); a plurality of connecting rods (53) are arranged in an annular shape at one end of the rotating wheel (5); the other end of the connecting rod (53) is connected to the sleeve (4); and a medicine outlet groove (52) is formed between every two connecting rods (53).

4. A stirring and dosing mechanism according to claim 1, characterized in that: The one-way valve (6) comprises a mounting frame (61), a top ball (63), a telescopic rod (62), and a spring (64). The mounting frame (61) is arranged inside the feeding pipe (2). One end of the telescopic rod (62) is connected to the mounting frame (61), and the other end is connected to the top ball (63). The spring (64) is surrounded on the outside of the telescopic rod (62).

5. A stirring and dosing mechanism according to claim 1, characterized in that: The collecting pump (7) comprises a pump wheel (71), a rotating shaft (72), a sewage pipe (73) and a flange pipe (74); the pump wheel (71) is installed at the center of the collecting pump (7); the rotating shaft (72) passes through the center of the pump wheel (71) and is respectively connected to the casing (4) and the motor (8); the sewage pipe (73) is arranged on the side of the collecting pump (7); and the flange pipe (74) is connected to the water inlet pipe (1).

6. A sewage treatment device, characterized in that: It comprises a sedimentation tank (9), a pressure pump (10), a drain pipe (11) and the stirring and dosing mechanism described in any one of claims 1 to 5, wherein the sedimentation tank (9) is connected to the other end of the water inlet pipe (1) opposite to the collecting pump (7), the drain pipe (11) is connected to the side of the sedimentation tank (9), and the pressure pump (10) is arranged on the drain pipe (11).

7. A sewage treatment device according to claim 6, characterized in that: The sedimentation box (9) comprises a support frame (91), a first filter screen (92) and a second filter screen (93); the support frame (91) is fixedly installed inside the sedimentation box (9); the first filter screen (92) is arranged on the support frame (91); and the second filter screen (93) is installed at the pipe mouth of the drainage pipe (11) and is located in the sedimentation box (9).

8. A sewage treatment device according to claim 7, characterized in that: The first filter screen (92) comprises a frame (921) and a handle (922), wherein the frame (921) surrounds the outer side of the first filter screen (92), and the handle (922) is vertically mounted on the frame (921).

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