A stirring device for environmental engineering sewage treatment

Abstract

The utility model provides a kind of stirring equipment for environmental protection engineering sewage treatment, belong to environmental protection technical field, including sewage treatment tank, motor being adaptedly installed in the support platform top, long shaft being inserted in the motor output end, oblique paddle wheel being fixedly installed in the long shaft side wall, bruma gold impeller being fixedly installed in the long shaft side wall, impeller being fixedly installed in the long shaft side wall.This utility model forms the composite water flow of vertical circulation and circumference mixing by three groups of impeller differentiation operation, oblique paddle wheel pushes the upper part sewage infiltration, the blade linear velocity of bruma gold impeller shears middle part mass impurities, impeller forms columnar upflow by flow guide cylinder, three cooperation eliminates pool dead water area, and the mixing uniformity of sewage and treatment reagent is promoted, and sewage treatment efficiency is promoted, impeller drives scraping strip to do herringbone circumferential motion, avoid flocculate winding on long shaft, also avoid sludge accumulation in the back of impeller.

Description

Technical Field

[0001] This utility model belongs to the field of environmental protection technology, specifically relating to a mixing device for wastewater treatment in environmental engineering. Background Technology

[0002] With the upgrading of industrial manufacturing and the acceleration of urbanization, the discharge of industrial wastewater and domestic sewage continues to grow. Pollutants such as suspended solids, organic matter, and heavy metals contained in the sewage need to be treated by environmental protection projects to meet standards before being discharged, in order to avoid polluting the aquatic ecosystem.

[0003] Traditional equipment often uses a single impeller with a fixed rotation speed. If an inclined impeller is used, it can only push the upper sewage to form a local circulation, and sludge is easily deposited at the bottom of the tank. If a propulsion impeller is used, although it can improve the bottom water flow, the sewage in the middle is prone to forming a dead water layer, resulting in uneven mixing of the agent and sewage. The reaction time needs to be extended to ensure the treatment effect, which slows down the overall sewage treatment process. Therefore, a mixing device for sewage treatment in environmental engineering has emerged. Utility Model Content

[0004] The purpose of this utility model is to provide a mixing device for wastewater treatment in environmental engineering, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A mixing device for wastewater treatment in environmental engineering, comprising,

[0007] The wastewater treatment tank, a support platform fixedly installed outside the wastewater treatment tank, a motor adapted to be installed on the top of the support platform, a long shaft inserted into the output end of the motor, a slanted impeller fixedly installed on the side wall of the long shaft, a Brumatin impeller fixedly installed on the side wall of the long shaft, and a propulsion impeller fixedly installed on the side wall of the long shaft.

[0008] As a preferred embodiment of this utility model, a support plate is fixedly installed on the side wall of the sewage treatment tank. The top of the support plate is flush with the top plane of the tank, and the bottom is supported on the bottom foundation of the tank.

[0009] In a preferred embodiment of this utility model, the support plate is fixedly mounted with a support bearing, which is sleeved on the side wall of the long shaft.

[0010] As a preferred embodiment of this utility model, multiple flanges are fixedly fixed at axial intervals on the long shaft sidewall, and the slanted impeller, Brumatin impeller and propulsion impeller are sequentially fixedly installed on the corresponding flanges.

[0011] As a preferred embodiment of this utility model, a guide tube is fixedly installed at the end of the propulsion impeller, and the central axis of the guide tube coincides with the rotation axis of the stirring shaft.

[0012] As a preferred embodiment of this utility model, a scraper is fixedly installed on the back of the propulsion impeller, and the scraper is arranged in multiple herringbone patterns or radial staggered patterns with the center of the propulsion impeller as the origin.

[0013] As a preferred embodiment of this utility model, a flushing pipe is provided at the bottom of the support platform, and the outlet of the flushing pipe faces the junction of the long axis and the bottom of the support platform.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by forming a composite water flow of vertical circulation and circumferential mixing through the differentiated operation of three sets of impellers, the inclined impeller pushes the upper sewage to seep down, the blade linear velocity of the Brumage impeller shears the clump-like impurities in the middle, and the propulsion impeller forms a columnar upward flow through the guide tube. The three work together to eliminate stagnant water areas in the pool, improve the uniformity of mixing sewage and treatment agents, and improve sewage treatment efficiency. The propulsion impeller drives the scraper to make a herringbone circular motion, which avoids flocculent matter from getting tangled on the long shaft and also avoids sludge from accumulating on the back of the propulsion impeller. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the mixing device of this utility model;

[0018] Figure 3 This is a side view of the mixing device of this utility model;

[0019] Figure 4 This is a schematic diagram of the scraper structure of this utility model.

[0020] In the diagram: 101, wastewater treatment tank; 102, support platform; 103, motor; 104, long shaft; 105, slanted impeller; 106, Brumatin impeller; 107, propeller impeller; 108, support plate; 109, support bearing; 110, flange; 111, guide tube; 112, scraper blade; 113, flushing pipe. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0024] Example

[0025] Reference Figures 1-4 This is an embodiment of the present invention, which provides a mixing device for wastewater treatment in environmental engineering, comprising:

[0026] Wastewater treatment tank 101, support platform 102 fixedly installed outside the wastewater treatment tank 101, motor 103 adapted to be installed on the top of support platform 102, long shaft 104 plugged into the output end of motor 103, inclined impeller 105 fixedly installed on the side wall of long shaft 104, Brumatin impeller 106 fixedly installed on the side wall of long shaft 104, and propulsion impeller 107 fixedly installed on the side wall of long shaft 104.

[0027] The components are made of stainless steel. The top of the long shaft is connected to the output end of the motor 103 via a flexible coupling. The lower end of the long shaft extends vertically into the sewage treatment tank 101, 100mm from the bottom of the tank. The inclined impeller 105 is made of stainless steel by stamping, with 4 blades, and is fixedly installed on the side wall of the long shaft 104 near the top. The Brumagen impeller 106 is made of stainless steel by integral forging, with 4 blades, and is fixedly installed on the side wall of the long shaft 104 in the middle. The propulsion impeller 107 is made of stainless steel by welding, with 3 blades, and is fixedly installed on the side wall of the long shaft 104 near the lower end.

[0028] Specifically, a support plate 108 is fixedly installed on the side wall of the sewage treatment tank 101. The top of the support plate 108 is flush with the top plane of the tank, and the bottom is supported on the bottom foundation of the tank.

[0029] The support plate 108 is made of stainless steel and its height is adapted to the depth of the pool. The top of the support plate 108 is flush with the top plane of the sewage treatment pool 101 and is fixed to the steel plate embedded in the concrete of the pool wall by expansion bolts to enhance the stability of the overall structure.

[0030] Furthermore, a support bearing 109 is fixedly installed on the support plate 108, and the support bearing 109 is sleeved on the side wall of the long shaft 104.

[0031] The support plate 108 has two support bearings 109 installed on its side wall. The inner ring of the support bearing 109 is tightly fitted on the side wall of the long shaft 104. The inner ring and the long shaft 104 are fitted with a transition fit to ensure that the long shaft 104 rotates without radial wobble. At the same time, the bearing is filled with lithium-based grease to reduce rotational friction resistance.

[0032] Furthermore, multiple flanges 110 are fixed axially at intervals on the side wall of the long shaft 104, and the slant impeller 105, Brumatin impeller 106 and propeller impeller 107 are sequentially fixed on the corresponding flanges 110.

[0033] Among them, three flanges 110 are fixed axially at intervals on the side wall of the long shaft 104. The ends of the slant impeller 105, Brumatin impeller 106 and propeller impeller 107 are all pre-set with connection holes that are compatible with the flanges 110. They are fixed to the corresponding flanges 110 by two sets of stainless steel bolts. Nitrile rubber gaskets that are resistant to sewage corrosion are added to the bolt connections to prevent sewage from seeping into the flange gaps.

[0034] Preferably, a guide tube 111 is fixedly installed at the end of the impeller 107, and the central axis of the guide tube 111 coincides with the rotation axis of the stirring shaft 104.

[0035] Specifically, a guide tube 111 is fixedly installed at the end of the impeller 107. One end of the guide tube 111 is fixed to the end of the blade of the impeller 107 by circumferential welding. The central axis of the guide tube 111 is completely coincident with the rotation axis of the major axis 104. It is used to guide the water flow generated by the impeller 107 to flow stably along the axial direction and enhance the uniformity of sewage mixing.

[0036] It should be noted that a scraper 112 is fixedly installed on the back of the impeller 107. The scraper 112 is arranged in multiple herringbone patterns or radial staggered patterns with the center of the impeller 107 as the origin.

[0037] The scraper 112 is fixed to the back of the impeller 107 by a stainless steel countersunk bolt. The bolt head is embedded inside the scraper. When the scraper 112 rotates, it can prevent materials such as plastic from getting tangled on the long shaft 104, and at the same time, it can prevent sludge from accumulating on the back of the impeller 107.

[0038] It should also be noted that a flushing pipe 113 is provided at the bottom of the support platform 102, and the outlet of the flushing pipe 113 faces the junction of the long axis 104 and the bottom of the support platform 102.

[0039] Specifically, the flushing pipe 113 is fixed to the bottom of the support platform 102 by pipe clamps, and the outlet faces the junction of the long axis 104 and the bottom of the support platform 102, and is used to flush and cool the area.

[0040] When in use, the motor 103 starts, and the long shaft 104 begins to rotate. When the long shaft rotates, it drives the inclined impeller 105, the Brumagen impeller 106, and the propulsion impeller 107, which are fixed to the side wall, to rotate synchronously. The blades of the inclined impeller 105 rotate with the long shaft, and the front end of the blades makes a circular motion. When rotating, the blades cut the sewage obliquely. The Brumagen impeller 106 breaks up the clumps of impurities in the sewage in the middle through the high-speed shearing action of the blades, while promoting the full mixing of sewage and chemicals, avoiding local accumulation of chemicals, and improving the uniformity of mixing. When the propulsion impeller 107 rotates, the blades push water towards the bottom of the pool, while driving the guide tube 111 at the end to rotate synchronously. When the blades push water, a negative pressure is formed inside the guide tube, which draws the sewage from the bottom of the pool into the guide tube. Then, the sewage is discharged upward along the axis of the guide tube by the thrust of the blades, forming a bottom-up water flow. This forms a circulation with the downward thrust of the inclined impeller. At the same time, the guide tube guides the water flow to rise in a columnar shape, avoiding water diffusion and enhancing the suspension of sludge at the bottom of the pool.

[0041] In summary, the three sets of impellers operate in a differentiated manner to form a composite water flow of vertical circulation and circumferential mixing. The inclined impeller 105 pushes the upper sewage to seep downwards, the blades of the Brumagin impeller 106 shear the clumps of impurities in the middle with linear velocity, and the propeller 107 forms a columnar upward flow through the guide tube. The three work together to eliminate stagnant water areas in the pool, improve the uniformity of mixing between sewage and treatment agents, avoid local accumulation and waste of agents, shorten the mixing reaction time, and improve sewage treatment efficiency. The propeller 107 drives the scraper 112 to perform a herringbone circular motion, preventing flocculent matter from getting tangled on the long shaft 104, and also preventing sludge from accumulating on the back of the propeller 107.

[0042] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0043] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0044] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A mixing device for wastewater treatment in environmental engineering, characterized in that: include, Wastewater treatment tank (101), support platform (102) fixedly installed outside the wastewater treatment tank (101), motor (103) adapted to be installed on the top of the support platform (102), long shaft (104) inserted into the output end of the motor (103), inclined impeller (105) fixedly installed on the side wall of the long shaft (104), Brumatin impeller (106) fixedly installed on the side wall of the long shaft (104), and propulsion impeller (107) fixedly installed on the side wall of the long shaft (104).

2. The stirring device for environmentally friendly engineering wastewater treatment according to claim 1, characterized in that: A support plate (108) is fixedly installed on the side wall of the sewage treatment tank (101). The top of the support plate (108) is flush with the top plane of the tank, and the bottom is supported on the bottom foundation of the tank.

3. The stirring device for environmentally friendly engineering wastewater treatment according to claim 2, characterized in that: The support plate (108) is fixedly mounted with a support bearing (109), which is sleeved on the side wall of the long shaft (104).

4. The stirring device for environmentally friendly engineering wastewater treatment according to claim 3, characterized in that: Multiple flanges (110) are fixed axially at intervals on the side wall of the long shaft (104), and the slant impeller (105), Brumatin impeller (106) and propulsion impeller (107) are sequentially fixed on the corresponding flanges (110).

5. The stirring device for environmentally friendly engineering wastewater treatment according to claim 4, characterized in that: The impeller (107) is fixedly mounted with a guide tube (111) at its end, and the central axis of the guide tube (111) coincides with the rotation axis of the stirring shaft (104).

6. The stirring device for environmentally friendly engineering wastewater treatment according to claim 5, characterized in that: A scraper (112) is fixedly installed on the back of the propulsion impeller (107). The scraper (112) is arranged in multiple herringbone patterns or radial staggered patterns with the center of the propulsion impeller (107) as the origin.

7. The stirring device for environmentally friendly engineering wastewater treatment according to claim 6, characterized in that: The bottom of the support platform (102) is provided with a flushing pipe (113), and the outlet of the flushing pipe (113) faces the junction of the long axis (104) and the bottom of the support platform (102).

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