Device for treating high-concentration organic wastewater containing phosphorus and sulfur

Abstract

The utility model discloses a device for treating high-concentration organic wastewater containing phosphorus and sulfur, which relates to the technical field of organic wastewater treatment devices, and comprises an equipment main body with a stirring tank and a charging conical barrel, and a mixing component used for realizing stirring and mixing operations; the mixing assembly comprises a stirring unit and a discharging and mixing unit; the stirring unit is used for horizontally stirring the mixed liquid in the stirring tank; and the discharging and mixing unit utilizes the driving force of the stirring unit to realize downward conveying of an additive in a charging conical cylinder, and realizes vertical stirring of a mixed solution in a stirring tank at the same time. By arranging the mixing assembly, synchronous stirring operation of uniform small materials of additives and mixed liquid is achieved, compared with traditional one-way stirring, the mixing assembly achieves simultaneous stirring of horizontal stirring and vertical stirring, and the mixing efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the technical field of organic wastewater treatment devices, specifically a device for treating high-concentration organic wastewater containing phosphorus and sulfur. Background Technology

[0002] The chemical industry discharges large amounts of high-concentration organic wastewater during production. One type contains high concentrations of organophosphorus and sulfur. This type of wastewater is characterized by high COD, high nitrogen and phosphorus, and high sulfur content, and is also biologically toxic. If it is discharged directly into the environment without treatment, it will cause great harm to the environment, damage human health, and pose a huge threat to the sustainable development of human beings and society.

[0003] Existing methods for treating high-concentration organic wastewater containing phosphorus and sulfur include:

[0004] Flocculation sedimentation method: Flocculants such as polyaluminum chloride and polyacrylamide are added to wastewater to combine with phosphorus and sulfur organic matter to form large flocs, which are then separated by sedimentation under gravity. This method is often used as a pretreatment step to reduce the content of suspended solids and some organic matter in wastewater and reduce the load on subsequent treatment.

[0005] Chemical oxidation method: Strong oxidants such as hydrogen peroxide, potassium permanganate, and chlorine dioxide are used to oxidize organic phosphorus and sulfur in wastewater into inorganic phosphorus and sulfur, namely phosphate and sulfate, before further treatment.

[0006] Chemical precipitation method: Adding chemical agents such as calcium salts, iron salts, and aluminum salts causes phosphorus to react with calcium ions to form hydroxyapatite precipitate, and sulfur to react with metal ions to form sulfide precipitate, thereby achieving the removal of phosphorus and sulfur.

[0007] The above treatment method requires the use of a stirring device to mix the additives (flocculators, strong oxidants, or chemical agents) with the waste. Traditional mixing devices are unidirectional agitators, and their mixing efficiency has room for improvement. Therefore, in order to further improve the treatment efficiency of high-concentration organic wastewater containing phosphorus and sulfur, a treatment device for high-concentration organic wastewater containing phosphorus and sulfur is provided. Utility Model Content

[0008] The purpose of this invention is to provide a device for treating high-concentration organic wastewater containing phosphorus and sulfur in order to solve the problems mentioned above.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a device for treating high-concentration organic wastewater containing phosphorus and sulfur, comprising a main body having a mixing tank and a feeding cone, wherein the feeding cone is fixed to one side of the top of the mixing tank and extends into the interior of the mixing tank, a conveying pipe is fixed to one side of the top of the feeding cone, the conveying pipe is connected to the inside of the feeding cone, and a mixing component extending into the interior of the mixing tank and the feeding cone is provided at the top of the mixing tank and the top of the feeding cone, the mixing component being used to realize the mixing operation;

[0010] The mixing assembly includes an agitation unit and a feeding and mixing unit;

[0011] The stirring unit is used to perform horizontal stirring of the mixture inside the mixing tank;

[0012] The feeding and mixing unit utilizes the driving force of the stirring unit to convey the additives inside the feeding cone downwards, while simultaneously vertically stirring the mixture inside the mixing tank.

[0013] As a further embodiment of this utility model: the stirring unit includes a drive motor, a central rotating shaft, and a stirring rod;

[0014] The drive motor is fixedly mounted on the top of the mixing tank by a mounting bracket. The central rotating shaft is fixedly connected to the output end of the drive motor and extends into the interior of the mixing tank. Multiple stirring rods are provided and are evenly distributed in a ring and fixed to the bottom of the drive motor.

[0015] The stirring rod is driven by a motor to rotate in a circular motion, which is used to horizontally agitate the mixture inside the mixing tank.

[0016] As a further embodiment of this utility model: the feeding and mixing unit includes a driving gear, a driven gear, a driven rotating shaft, a spiral feeding blade, a spiral feeding blade, and a fixed suction cylinder;

[0017] The driving gear is fixed to the outside of the central rotating shaft and distributed above the mixing tank. The driven gear is distributed above the feeding cone and meshes with the driving gear. The driven rotating shaft is fixed to the bottom end of the driven gear and is rotatably connected to the feeding cone through a bearing base. The driven rotating shaft extends through the feeding cone into the interior of the mixing tank.

[0018] The spiral feeder blades are distributed inside the feeding cone and fixed to the outside of the driven rotating shaft. The rotation of the spiral feeder blades is used to convey the additives inside the feeding cone downwards.

[0019] The fixed suction cylinder is fixedly installed inside the mixing tank and distributed outside the driven rotating shaft. The spiral feeding blade is distributed inside the fixed suction cylinder and fixedly connected to the outer wall of the driven rotating shaft. When the spiral feeding blade rotates, it cooperates with the fixed suction cylinder to draw the mixture from the bottom of the mixing tank upward.

[0020] As a further embodiment of this utility model: the feeding cone, driven gear, driven shaft, spiral feeding blade, spiral feeding blade, and fixed suction cylinder are arranged in multiple sets in a ring around the center of the mixing tank, and the multiple fixed suction cylinders are fixedly connected to each other and fixedly connected to the inside of the mixing tank through a connecting frame.

[0021] As a further embodiment of this utility model: the bottom of the spiral feeder protrudes from the bottom of the feeding cone, the top of the spiral feeder protrudes from the top of the fixed suction cylinder, and the spiral directions of the spiral feeder and the spiral feeder are opposite.

[0022] A conical baffle is fixed on the outer side of the driven shaft between the spiral feed plate and the spiral feed plate, and the outer diameter of the bottom of the conical baffle is larger than the outer diameter of the spiral feed plate.

[0023] As a further embodiment of this utility model: an inlet pipe communicating with the interior of the mixing tank is fixed on one side of the outer wall of the mixing tank, and an outlet pipe communicating with the interior of the mixing tank is fixed at the bottom of the mixing tank.

[0024] The horizontal height of the inlet pipe port is lower than the horizontal height of the lower surface of the conical baffle, and the position of the inlet pipe port is offset from the area where the driven shaft is located.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] By setting up a mixing component, the additive particles are uniformly mixed with the liquid simultaneously. Compared with traditional unidirectional stirring, the mixing component achieves simultaneous horizontal and vertical stirring, resulting in higher mixing efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a cross-sectional view of the internal structure of the mixing tank of this utility model;

[0029] Figure 3 This is a cross-sectional view of the mixing tank and feeding cone of this utility model;

[0030] Figure 4 This is a cross-sectional exploded view of the present invention.

[0031] In the diagram: 1. Main body of the equipment; 101. Mixing tank; 102. Liquid inlet pipe; 103. Liquid outlet pipe; 104. Mounting frame; 105. Feeding cone; 106. Conveying pipe; 2. Mixing assembly; 201. Drive motor; 202. Central rotating shaft; 203. Stirring rod; 204. Drive gear; 205. Driven gear; 206. Driven rotating shaft; 207. Spiral feeder; 208. Spiral feeder; 209. Conical baffle; 210. Fixed suction cylinder; 211. Connecting frame. Detailed Implementation

[0032] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-4 In this embodiment of the present invention, a device for treating high-concentration organic wastewater containing phosphorus and sulfur includes a main body 1 having a mixing tank 101 and a feeding cone 105. The feeding cone 105 is fixed to one side of the top of the mixing tank 101 and extends into the interior of the mixing tank 101. A conveying pipe 106 is fixed to one side of the top of the feeding cone 105 and communicates with the inside of the feeding cone 105. A mixing component 2 extending into the interior of the mixing tank 101 and the feeding cone 105 is provided at the top of the mixing tank 101 and the top of the feeding cone 105. The mixing component 2 is used to realize the mixing operation.

[0034] Mixing component 2 includes an agitation unit and a feeding and mixing unit;

[0035] The stirring unit is used to perform horizontal stirring of the mixture inside the mixing tank 101;

[0036] The feeding and mixing unit uses the driving force of the stirring unit to convey the additives inside the feeding cone 105 downwards, while simultaneously stirring the mixture inside the mixing tank 101 vertically.

[0037] The stirring unit includes a drive motor 201, a central rotating shaft 202, and a stirring rod 203;

[0038] The drive motor 201 is fixedly installed on the top of the mixing tank 101 via the mounting bracket 104. The central rotating shaft 202 is fixedly connected to the output end of the drive motor 201 and extends into the mixing tank 101. Multiple stirring rods 203 are provided and are evenly distributed in a ring and fixed to the bottom of the drive motor 201.

[0039] The stirring rod 203 is driven by the drive motor 201 to rotate in a circular motion to achieve horizontal stirring of the mixture inside the mixing tank 101;

[0040] The feeding and mixing unit includes a driving gear 204, a driven gear 205, a driven rotating shaft 206, a spiral feeding blade 207, a spiral feeding blade 208, and a fixed suction cylinder 210;

[0041] The driving gear 204 is fixed to the outside of the central rotating shaft 202 and distributed above the mixing tank 101. The driven gear 205 is distributed above the feeding cone 105 and meshes with the driving gear 204. The driven rotating shaft 206 is fixed to the bottom end of the driven gear 205 and is rotatably connected to the feeding cone 105 through a bearing base. The driven rotating shaft 206 extends through the feeding cone 105 to the inside of the mixing tank 101.

[0042] Spiral feed plates 207 are distributed inside the feeding cone 105 and fixed to the outside of the driven rotating shaft 206. The rotation of the spiral feed plates 207 is used to realize the downward conveying of additives inside the feeding cone 105.

[0043] The fixed suction cylinder 210 is fixedly installed inside the mixing tank 101 and distributed outside the driven rotating shaft 206. The spiral feeding blade 208 is distributed inside the fixed suction cylinder 210 and fixedly connected to the outer wall of the driven rotating shaft 206. When the spiral feeding blade 208 rotates, it cooperates with the fixed suction cylinder 210 to draw the mixture from the bottom of the mixing tank 101 upward.

[0044] The bottom of the spiral feeder 207 protrudes from the bottom of the feeding cone 105, and the top of the spiral feeder 208 protrudes from the top of the fixed suction cylinder 210. The spiral directions of the spiral feeder 207 and the spiral feeder 208 are opposite.

[0045] Multiple sets of feeding cone 105, driven gear 205, driven rotating shaft 206, spiral feeding blade 207, spiral feeding blade 208, and fixed suction cylinder 210 are arranged in a ring around the center of the mixing tank 101. The multiple fixed suction cylinders 210 are fixedly connected to each other through connecting frame 211 and fixedly connected to the inside of the mixing tank 101.

[0046] A liquid inlet pipe 102 that communicates with the interior of the mixing tank 101 is fixed to one side of the outer wall of the mixing tank 101, and a liquid outlet pipe 103 that communicates with the interior of the mixing tank 101 is fixed to the bottom of the mixing tank 101.

[0047] In this embodiment, it should be noted that the conveying pipes 106 corresponding to the multiple feeding cones 105 are connected to various different additive conveying pipelines to realize the feeding operation of different additives (when the number of types of additives is greater than the number of feeding cones 105, one feeding cone 105 can also be connected to the conveying pipelines of multiple additives at the same time).

[0048] The operating principle for treating phosphorus- and sulfur-containing wastewater is as follows:

[0049] Phosphorus- and sulfur-containing wastewater is transported to the inside of the mixing tank 101 through the inlet pipe 102 (it should be noted that the liquid level inside the mixing tank 101 is controlled to be lower than the top of the fixed suction cylinder 201). During this process, the corresponding additives can be transported to the inside of the feeding cone 105 as needed (it should be noted that the quantitative transport of additives can be achieved through external transport pipelines and quantitative transport pumps). At the same time, the drive motor 201 is started, and the drive motor 201 drives the central rotating shaft 202 and the stirring rod 203 to rotate in a circular motion. The stirring rod 203 performs horizontal low-speed stirring of the liquid inside the mixing tank 101.

[0050] Meanwhile, the central rotating shaft 202 drives the driving gear 204 to rotate, the driving gear 204 drives the driven gear 205 to rotate, and the driven gear 205 drives the driven rotating shaft 206, the spiral feed plate 207, and the spiral feed plate 208 to rotate at high speed. The rotating spiral feed plate 207 can transport the additive inside the feeding cone 105 downward to the mixing tank 101. At the same time, when the spiral feed plate 208 rotates, it transports the waste liquid at the bottom of the mixing tank 101 upward and throws it out from the top of the fixed suction cylinder 210. During this process, the additive falling downward comes into initial contact with the thrown waste liquid.

[0051] By repeating the above steps, the mixing of waste liquid and additives can be achieved. Compared with traditional unidirectional stirring, this mixing tank 101 combines horizontal and vertical stirring, resulting in higher mixing efficiency.

[0052] Please refer to this carefully. Figures 1-4 A conical baffle 209 is fixed on the outer side of the driven shaft 206 between the spiral feed plate 207 and the spiral feed plate 208. The outer diameter of the bottom of the conical baffle 209 is larger than the outer diameter of the spiral feed plate 207.

[0053] The horizontal height of the port of the liquid inlet pipe 102 is lower than the horizontal height of the lower surface of the conical baffle 209, and the port position of the liquid inlet pipe 102 is offset from the area where the driven rotating shaft 206 is located.

[0054] In this embodiment: the additive conveyed downwards comes into contact with the upper surface of the rotating conical baffle 209 and is thrown outwards under the action of centrifugal force, which disperses the additive and makes full contact with the thrown waste liquid, effectively improving the initial mixing efficiency.

[0055] Furthermore, the conical baffle 209 also has the effect of blocking the upward conveyed waste liquid. It should be noted that there is a certain height between the bottom of the conical baffle 209 and the top of the spiral feeding plate 208. Most of the waste liquid moving upward to the fixed suction cylinder 210 will not come into contact with the conical baffle 209. A small amount of waste liquid splashing at a higher height will be blocked by the conical baffle 209, thereby preventing the waste liquid from coming into contact with the spiral feeding plate 207. This also prevents the spiral feeding plate 207 from getting wet and causing the additives to adhere to the surface of the spiral feeding plate 207 and not fall off, thus keeping the spiral feeding plate 207 in a good feeding state.

[0056] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for treating high-concentration organic wastewater containing phosphorus and sulfur, comprising a main body (1) having a mixing tank (101) and a feeding cone (105), wherein the feeding cone (105) is fixed to one side of the top of the mixing tank (101) and extends into the interior of the mixing tank (101), and a conveying pipe (106) is fixed to one side of the top of the feeding cone (105), wherein the conveying pipe (106) is in communication with the inner side of the feeding cone (105), characterized in that, The top of the mixing tank (101) and the top of the feeding cone (105) are provided with a mixing component (2) extending into the interior of the mixing tank (101) and the feeding cone (105), and the mixing component (2) is used to realize the mixing operation; The mixing component (2) includes an agitation unit and a feeding and mixing unit; The stirring unit is used to perform horizontal stirring of the mixture inside the mixing tank (101); The feeding and mixing unit utilizes the driving force of the stirring unit to convey the additives inside the feeding cone (105) downwards, while simultaneously achieving vertical stirring of the mixture inside the mixing tank (101).

2. The device for treating high-concentration organic wastewater containing phosphorus and sulfur according to claim 1, characterized in that, The stirring unit includes a drive motor (201), a central rotating shaft (202), and a stirring rod (203). The drive motor (201) is fixedly installed above the mixing tank (101) by the mounting bracket (104). The central rotating shaft (202) is fixedly connected to the output end of the drive motor (201) and extends into the mixing tank (101). Multiple stirring rods (203) are provided and are evenly distributed in a ring and fixed to the bottom of the drive motor (201). The stirring rod (203) is driven by the drive motor (201) to rotate in a circular motion to achieve horizontal stirring of the mixture inside the mixing tank (101).

3. The device for treating high-concentration organic wastewater containing phosphorus and sulfur according to claim 2, characterized in that, The feeding and mixing unit includes a driving gear (204), a driven gear (205), a driven rotating shaft (206), a spiral feeding blade (207), a spiral feeding blade (208), and a fixed suction cylinder (210). The driving gear (204) is fixed on the outside of the central rotating shaft (202) and distributed above the mixing tank (101). The driven gear (205) is distributed above the feeding cone (105) and meshes with the driving gear (204). The driven rotating shaft (206) is fixed to the bottom end of the driven gear (205) and is rotatably connected to the feeding cone (105) through a bearing base. The driven rotating shaft (206) extends through the feeding cone (105) into the interior of the mixing tank (101). The spiral feeder (207) is distributed inside the feeding cone (105) and fixed to the outside of the driven rotating shaft (206). The rotation of the spiral feeder (207) is used to realize the downward conveying of additives inside the feeding cone (105). The fixed suction cylinder (210) is fixedly installed inside the mixing tank (101) and distributed outside the driven rotating shaft (206). The spiral feeding blade (208) is distributed inside the fixed suction cylinder (210) and fixedly connected to the outer wall of the driven rotating shaft (206). When the spiral feeding blade (208) rotates, it cooperates with the fixed suction cylinder (210) to suck the mixture at the bottom of the mixing tank (101) upward.

4. The device for treating high-concentration organic wastewater containing phosphorus and sulfur according to claim 3, characterized in that, The feeding cone (105), driven gear (205), driven shaft (206), spiral feeder (207), spiral feeder (208), and fixed suction cylinder (210) are arranged in a ring around the center of the mixing tank (101). Multiple fixed suction cylinders (210) are fixedly connected to each other through a connecting frame (211) and fixedly connected to the inside of the mixing tank (101).

5. The device for treating high-concentration organic wastewater containing phosphorus and sulfur according to claim 3, characterized in that, The bottom of the spiral feed plate (207) protrudes from the bottom of the feeding cone (105), and the top of the spiral feed plate (208) protrudes from the top of the fixed suction cylinder (210). The spiral directions of the spiral feed plate (207) and the spiral feed plate (208) are opposite. A conical baffle (209) is fixed on the outer side of the driven shaft (206) between the spiral feed plate (207) and the spiral feed plate (208). The outer diameter of the bottom of the conical baffle (209) is larger than the outer diameter of the spiral feed plate (207).

6. The device for treating high-concentration organic wastewater containing phosphorus and sulfur according to claim 5, characterized in that, A liquid inlet pipe (102) communicating with the inside of the mixing tank (101) is fixed on one side of the outer wall of the mixing tank (101), and a liquid outlet pipe (103) communicating with the inside of the mixing tank (101) is fixed at the bottom of the mixing tank (101). The horizontal height of the port of the liquid inlet pipe (102) is lower than the horizontal height of the lower surface of the conical baffle (209), and the port position of the liquid inlet pipe (102) is offset from the area where the driven rotating shaft (206) is located.

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