A sewage treatment stirring device

Abstract

The utility model discloses a sewage treatment stirring device relates to sewage treatment technical field, including sewage treatment cylinder, the sewage treatment cylinder top end is installed and extends to its inside stirring mechanism, the stirring mechanism includes setting in the first impeller and second impeller of sewage treatment cylinder inside. The utility model discloses a coaxial reverse first impeller and second impeller are arranged, can form the water flow of opposite direction in the sewage treatment cylinder, utilize the mutual impact, shearing and mixing effect between water flow, realize the compound stirring to sewage, effectively promoted the homogeneity and fullness of stirring, simultaneously, reciprocating lifting mechanism can drive the first impeller and do periodic reciprocating lifting in the axial direction in the rotation process, change its stirring height, expand the stirring action range, ensure that the sewage of different depth can all receive effective stirring, solved the problem that the traditional stirring mechanism is not sufficient because of the single direction, the limited range leads to stirring.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a wastewater treatment stirring device. Background Technology

[0002] In today's wastewater treatment field, with the acceleration of industrialization and the continuous growth of urban population, the volume of wastewater treatment is constantly increasing, and the requirements for treatment efficiency and effectiveness are becoming more and more stringent. In order to achieve efficient wastewater treatment, the mixing process is crucial among many treatment steps. By mixing the wastewater with a mixing mechanism, the various components in the wastewater can be fully mixed, accelerating the chemical reaction and thus significantly improving the wastewater treatment effect.

[0003] In existing wastewater treatment technology systems, mixing mechanisms are widely used in various wastewater treatment equipment. Common mixing mechanisms mostly use an electric motor as a power source, which drives the mixing shaft to rotate through transmission components such as belts, chains, or couplings, thereby causing the mixing blades mounted on the mixing shaft to mix the wastewater.

[0004] However, most existing mixing mechanisms can only achieve rotational mixing in one direction, such as the common horizontal circular mixing method. This single mixing direction makes it difficult for the wastewater to be subjected to the mixing force in all directions and evenly during the mixing process. At the same time, due to the single mixing direction, it is difficult for different components in the wastewater to be fully mixed in all dimensions, which may lead to large local concentration differences in the wastewater. This uneven mixing situation greatly limits the wastewater treatment capacity of wastewater treatment equipment and cannot meet the increasingly stringent wastewater treatment standards for mixing uniformity. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a sewage treatment mixing device to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sewage treatment stirring device, comprising a sewage treatment cylinder, wherein a stirring mechanism extending into the cylinder is installed at the top of the sewage treatment cylinder;

[0007] The stirring mechanism includes a first impeller and a second impeller installed inside the sewage treatment cylinder. The first impeller and the second impeller rotate in opposite directions on the same axis, which can form water flows in opposite directions inside the sewage treatment cylinder. Through the mutual impact, shearing and mixing of the water flows, the sewage inside the sewage treatment cylinder is mixed in a composite manner, so as to improve the uniformity and fullness of sewage mixing.

[0008] The stirring mechanism includes a fixed frame, a motor, a central shaft, and a hollow shaft;

[0009] The fixed frame is installed on the top of the sewage treatment cylinder, the motor is set on the fixed frame and the motor output end is connected to the central shaft, the hollow shaft is sleeved outside the central shaft and rotatably connected to the fixed frame, the first impeller is connected to the hollow shaft, and the second impeller is fixed at the end of the central shaft;

[0010] The central shaft is driven to rotate by a motor, and the hollow shaft is driven to rotate in the opposite direction by a transmission structure, so as to achieve the coaxial reversal of the first impeller and the second impeller.

[0011] The stirring mechanism also includes a driving bevel gear, a driven bevel gear, a transmission bevel gear, a transmission rod, and a rotating lifting frame;

[0012] The active bevel gear is fixed on the outside of the central shaft, the passive bevel gear is fixed on the outside of the hollow shaft, and the transmission bevel gear is rotatably connected to one side of the fixed frame and meshes with the active bevel gear and the passive bevel gear.

[0013] The transmission rod is fixed to the outside of the hollow shaft, and the outside of the transmission rod is axially sliding and radially limited by a rotating lifting frame. The outside of the rotating lifting frame is fixedly connected to the first impeller.

[0014] Through the transmission cooperation of the active bevel gear, the passive bevel gear, the transmission rod and the transmission bevel gear, the rotation direction of the central shaft is transmitted in the opposite direction to the hollow shaft, ensuring that the first impeller and the second impeller form a stable reverse rotation state;

[0015] A reciprocating lifting mechanism is provided on both sides between the stirring mechanism and the first impeller. The reciprocating lifting mechanism can drive the first impeller to make periodic reciprocating lifting motion along the axial direction when it rotates, so as to change the stirring height of the first impeller in the sewage treatment cylinder, expand the stirring range, and enable sewage at different depths to be effectively stirred.

[0016] The reciprocating lifting mechanism includes a first link, a second link, a movable seat, and a slip ring;

[0017] The slip ring is movably connected inside the rotating lifting frame. Two sets of movable seats are fixed on both sides of the top of the slip ring. Two sets of first connecting rods are located on both sides of the fixed frame and their top ends are hinged to them. Their bottom ends are hinged to the second connecting rods. The bottom of the second connecting rods is hinged to the movable seats.

[0018] One set of the first connecting rod and the shaft of the transmission bevel gear are fixedly connected. The transmission bevel gear drives the first connecting rod to rotate. Under the action of the second connecting rod, the rotating lifting frame and the first impeller are driven to perform periodic reciprocating lifting motion inside the sewage treatment cylinder.

[0019] A water inlet pipe is installed on one side of the top of the sewage treatment cylinder, and the water inlet pipe extends into the inside of the sewage treatment cylinder. A flow control valve is installed on the water inlet pipe to control the rate at which sewage enters the sewage treatment cylinder and avoid insufficient mixing due to excessive water intake.

[0020] The top of the wastewater treatment cylinder is equipped with a feeding port, which is fitted with a sealing cap and has a guide plate inside. When the treatment agent is added to the wastewater treatment cylinder through the feeding port, the guide plate can guide the agent to slide down the cylinder wall, avoiding the agent from directly impacting the impeller and affecting the stirring stability. At the same time, the sealing cap can prevent wastewater from splashing out during the stirring process.

[0021] A drain pipe is installed at the bottom of the sewage treatment cylinder, and a valve is installed on the drain pipe. The bottom surface inside the sewage treatment cylinder is inclined, with the inclined direction facing the drain pipe, so that the sewage after stirring and treatment can be completely discharged through the drain pipe, reducing the amount of sewage residue in the cylinder.

[0022] Furthermore, a ladder is installed on the outer wall of the sewage treatment tank, and a guardrail is provided on one side of the ladder. The ladder allows operators to easily climb to the top of the sewage treatment tank for equipment inspection or maintenance, and the guardrail can improve operational safety.

[0023] In summary, this utility model has the following beneficial effects: By setting up a first impeller and a second impeller that rotate in opposite directions on the same axis, this utility model can form water flows in opposite directions within the sewage treatment cylinder. Utilizing the mutual impact, shearing, and mixing effects between the water flows, it achieves compound stirring of the sewage, effectively improving the uniformity and thoroughness of the stirring. At the same time, the reciprocating lifting mechanism can drive the first impeller to periodically reciprocate and lift along the axial direction during rotation, changing its stirring height and expanding the stirring range. This ensures that sewage at different depths can be effectively stirred, solving the problem of insufficient stirring caused by the single direction and limited range of traditional stirring mechanisms. In addition, auxiliary structures such as the flow control of the inlet pipe, the guidance and sealing of the feeding port, the inclined bottom design of the drain pipe, and the safety protection of the ladder further ensure the stability, efficiency, and operational safety of the device, comprehensively improving the efficiency and effect of sewage treatment and better meeting the stringent sewage treatment standards. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a cross-sectional view of the entire utility model;

[0026] Figure 3 This utility model Figure 2 Enlarged view of point A;

[0027] Figure 4 This is a schematic diagram of the internal structure of the present invention;

[0028] Figure 5 This utility model Figure 4 Enlarged view of point B.

[0029] In the diagram: 1. Sewage treatment cylinder; 2. Mixing mechanism; 201. Fixed frame; 202. Motor; 203. Central shaft; 204. Driving bevel gear; 205. Driven bevel gear; 206. Hollow shaft; 207. Transmission bevel gear; 208. Transmission rod; 209. Rotary lifting frame; 210. First impeller; 211. Second impeller; 3. Reciprocating lifting mechanism; 301. First connecting rod; 302. Second connecting rod; 303. Movable seat; 304. Slip ring; 4. Water inlet pipe; 5. Feed port; 6. Drainage pipe; 7. Ladder. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] The embodiments of this utility model will be described below based on its overall structure.

[0032] Example

[0033] like Figure 1-5 As shown, the wastewater treatment mixing device in this embodiment includes a wastewater treatment cylinder 1, and a mixing mechanism 2 is fixedly installed at its top end by bolts. The core component of the mixing mechanism 2 extends into the interior of the wastewater treatment cylinder 1 for compound mixing of wastewater.

[0034] The stirring mechanism 2 includes:

[0035] The fixed frame 201 is fixed to the top of the sewage treatment cylinder 1 by welding. The motor 202 is bolted to the fixed frame 201, and its output end is connected to the central shaft 203 through a coupling to provide power for the overall stirring.

[0036] Hollow shaft 206 is sleeved on the outside of central shaft 203 and is rotatably connected to fixed frame 201 through bearing. First impeller 210 is located at the bottom of hollow shaft 206, and second impeller 211 is bolted to the end of central shaft 203. The two are distributed at intervals in the vertical direction.

[0037] The driving bevel gear 204 is keyed to the outside of the central shaft 203, the driven bevel gear 205 is keyed to the outside of the hollow shaft 206, and the transmission bevel gear 207 is rotatably connected to one side of the fixed frame 201 through a rotating shaft, and simultaneously meshes with the driving bevel gear 204 and the driven bevel gear 205.

[0038] When the motor 202 starts, the central shaft 203 drives the active bevel gear 204 to rotate. Through the reversing transmission of the transmission bevel gear 207, the passive bevel gear 205 drives the hollow shaft 206 to rotate in the opposite direction, ultimately achieving the coaxial reversal of the first impeller 210 and the second impeller 211. This reverse rotation forms water flows in opposite directions inside the sewage treatment cylinder 1. The impact and shearing action between the water flows can significantly improve the uniformity of sewage mixing and avoid the problem of insufficient local mixing caused by stirring in one direction.

[0039] The reciprocating lifting mechanism 3 includes:

[0040] The slip ring 304 is fitted inside the rotating lifting frame 209 and can rotate radially. Two sets of movable seats 303 are welded to the top two sides of the slip ring 304. The top end of the first connecting rod 301 is hinged to the fixed frame 201, and the bottom end is hinged to the second connecting rod 302. The bottom of the second connecting rod 302 is hinged to the movable seat 303.

[0041] One set of first connecting rods 301 is connected to the key of the shaft of the transmission bevel gear 207. When the transmission bevel gear 207 rotates, it drives the first connecting rod 301 to make a circular motion. Through the linkage of the second connecting rod 302, the movable seat 303 pushes the slip ring 304 and the rotating lifting frame 209 to make periodic reciprocating lifting along the axial direction, thereby causing the first impeller 210 to change the stirring height during rotation, covering sewage at different depths in the sewage treatment cylinder 1, and solving the problem of limited stirring range of traditional impellers.

[0042] The inlet pipe 4 at the top of the sewage treatment cylinder 1 can adjust the inlet rate through a flow control valve to avoid insufficient mixing caused by excessively fast inlet water.

[0043] The guide plate inside the feed port 5 guides the agent to slide down the cylinder wall, preventing the agent from directly impacting the impeller and affecting stability. The sealing cover can prevent sewage from splashing out.

[0044] The bottom drain pipe 6, combined with the sloping bottom design, facilitates the complete discharge of treated wastewater and reduces residue.

[0045] The external wall ladder 7 and guardrails facilitate safe equipment maintenance by operators;

[0046] When the device is started, the motor 202 drives the central shaft 203 to rotate, and the second impeller 210 rotates in the forward direction with the central shaft. At the same time, the active bevel gear 204 drives the passive bevel gear 205 to rotate in the reverse direction through the transmission bevel gear 207, so that the hollow shaft 206 and the first impeller 211 rotate in the opposite direction, forming a bidirectional water flow mixing.

[0047] When the transmission bevel gear 207 rotates, it synchronously drives the first connecting rod 301 to move. Through the action of the reciprocating lifting mechanism 3, the first impeller 211 moves up and down while rotating in the opposite direction, thereby realizing three-dimensional stirring of the sewage in the sewage treatment cylinder 1.

[0048] After the wastewater enters the cylinder through the inlet pipe 4, it is fully mixed with the reagent added through the feed port 5 under the impeller stirring to accelerate the reaction. After the treatment is completed, the drain pipe 6 valve is opened and the wastewater is discharged along the inclined bottom surface.

[0049] This embodiment significantly improves the uniformity and sufficiency of wastewater mixing by combining a coaxial reverse impeller with a reciprocating lifting mechanism. It is suitable for industrial wastewater and domestic sewage treatment scenarios and meets the requirements of high emission standards for mixing effect.

[0050] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A wastewater treatment mixing device, comprising a wastewater treatment cylinder (1), characterized in that: The top of the sewage treatment cylinder (1) is equipped with a stirring mechanism (2) that extends into it; The stirring mechanism (2) includes a first impeller (210) and a second impeller (211) disposed inside the sewage treatment cylinder (1). The first impeller (210) and the second impeller (211) rotate in opposite directions on the same axis, which can form water flow in opposite directions inside the sewage treatment cylinder (1). Through the mutual impact, shearing and mixing between the water flow, the sewage inside the sewage treatment cylinder (1) is mixed in a composite manner to improve the uniformity and fullness of sewage mixing. A reciprocating lifting mechanism (3) is provided on both sides between the stirring mechanism (2) and the first impeller (210). The reciprocating lifting mechanism (3) can drive the first impeller (210) to make periodic reciprocating lifting motion along the axial direction when it rotates, so as to change the stirring height of the first impeller (210) in the sewage treatment cylinder (1), expand the stirring range, and make sewage at different depths be effectively stirred.

2. The wastewater treatment mixing device according to claim 1, characterized in that: The stirring mechanism (2) includes a fixed frame (201), a motor (202), a central shaft (203), and a hollow shaft (206); The fixed frame (201) is installed on the top of the sewage treatment cylinder (1), the motor (202) is set on the fixed frame (201), and the output end of the motor (202) is connected to the central shaft (203). The hollow shaft (206) is sleeved on the outside of the central shaft (203) and rotatably connected to the fixed frame (201). The first impeller (210) is connected to the hollow shaft (206), and the second impeller (211) is fixed at the end of the central shaft (203). The central shaft (203) is driven to rotate by the motor (202), and the hollow shaft (206) is driven to rotate in the opposite direction by the transmission structure, so as to realize the coaxial reversal of the first impeller (210) and the second impeller (211).

3. The wastewater treatment mixing device according to claim 2, characterized in that: The stirring mechanism (2) also includes an active bevel gear (204), a passive bevel gear (205), a transmission bevel gear (207), a transmission rod (208), and a rotating lifting frame (209); The active bevel gear (204) is fixed on the outside of the central shaft (203), the passive bevel gear (205) is fixed on the outside of the hollow shaft (206), and the transmission bevel gear (207) is rotatably connected to one side of the fixed frame (201) and meshes with the active bevel gear (204) and the passive bevel gear (205). The transmission rod (208) is fixed on the outside of the hollow shaft (206), and the transmission rod (208) is axially sliding and radially limited connected to a rotating lifting frame (209), and the outside of the rotating lifting frame (209) is fixedly connected to the first impeller (210). Through the transmission cooperation of the active bevel gear (204), the passive bevel gear (205), the transmission rod (208) and the transmission bevel gear (207), the rotation direction of the central shaft (203) is transmitted in the opposite direction to the hollow shaft (206), ensuring that the first impeller (210) and the second impeller (211) form a stable reverse rotation state.

4. The wastewater treatment mixing device according to claim 3, characterized in that: The reciprocating lifting mechanism (3) includes a first connecting rod (301), a second connecting rod (302), a movable seat (303), and a slip ring (304); The slip ring (304) is movably connected inside the rotating lifting frame (209). Two sets of movable seats (303) are fixed on both sides of the top of the slip ring (304). Two sets of first connecting rods (301) are located on both sides of the fixed frame (201) and their top ends are hinged to it. Their bottom ends are hinged to the second connecting rod (302). The bottom of the second connecting rod (302) is hinged to the movable seat (303). One of the first connecting rods (301) and the transmission bevel gear (207) are fixedly connected by a rotating shaft. The transmission bevel gear (207) drives the first connecting rod (301) to rotate. Under the action of the second connecting rod (302), the rotating lifting frame (209) and the first impeller (210) are driven to perform periodic reciprocating lifting motion inside the sewage treatment cylinder (1).

5. The wastewater treatment mixing device according to claim 1, characterized in that: A water inlet pipe (4) is installed on one side of the top of the sewage treatment cylinder (1), and the water inlet pipe (4) extends into the inside of the sewage treatment cylinder (1). A flow control valve is provided on the water inlet pipe (4) to control the rate at which sewage enters the sewage treatment cylinder (1) and avoid insufficient mixing due to excessive water intake.

6. The wastewater treatment mixing device according to claim 1, characterized in that: The wastewater treatment cylinder (1) is provided with a feeding port (5) at the top. A sealing cover is installed on the feeding port (5), and a guide plate is provided inside the feeding port (5). When the treatment agent is added into the wastewater treatment cylinder (1) through the feeding port (5), the guide plate can guide the agent to slide down along the cylinder wall, avoiding the agent from directly impacting the impeller and affecting the stirring stability. At the same time, the sealing cover can prevent wastewater from splashing out during the stirring process.

7. The wastewater treatment mixing device according to claim 1, characterized in that: The bottom of the sewage treatment cylinder (1) is equipped with a drain pipe (6), and a valve is provided on the drain pipe (6). The bottom surface inside the sewage treatment cylinder (1) is inclined, with the inclined direction facing the drain pipe (6), so that the sewage after stirring and treatment can be completely discharged through the drain pipe (6) and the sewage residue in the cylinder can be reduced.

8. The wastewater treatment mixing device according to claim 1, characterized in that: A ladder (7) is installed on the outer wall of the sewage treatment cylinder (1). A guardrail is provided on one side of the ladder (7). The ladder (7) facilitates operators to climb to the top of the sewage treatment cylinder (1) for equipment inspection or maintenance. The guardrail can improve the safety of operation.

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