A sewage treatment device for industrial parks

Abstract

The present invention relates to the technical field of sewage treatment equipment, and more specifically to a sewage treatment device for industrial parks, comprising a housing, a drainage plate, a rotary drive, an elastic mechanism, and a first propeller; the drainage plate is disposed at the bottom end of the inner wall of the housing; the elastic mechanism is rotatably connected to the side wall of the housing; one end of the elastic mechanism is connected to the rotating shaft of the rotary drive, and the other end is connected to the first propeller; the first propeller is disposed within the housing; when the rotary drive rotates forward, the elastic mechanism contracts, and the first propeller rotates forward synchronously in a first working position; when the rotary drive reverses or stops working, the elastic mechanism extends, and the first propeller reverses in a second working position. The elastic mechanism can drive the first propeller to move between the first working position and the second working position, thereby realizing multi-station operation of a single propeller. The equipment occupies a small space, has a large agitation range for sewage, can improve the dissolution efficiency of chemical agents, and shorten water purification time.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment equipment, and in particular to a sewage treatment device for industrial parks. Background Art

[0002] The sewage in industrial parks includes production sewage and production sewage, which refers to the sewage and waste liquid generated in the industrial production process. It contains industrial production materials, intermediate products, by-products and pollutants generated in the production process that are lost with water. The sewage contains too many heavy metal elements, and if it is directly discharged, it will cause pollution to the environment.

[0003] Compared to regular urban domestic water, industrial park wastewater is more diverse and more difficult to treat, often requiring chemical agents for water purification. Chemical agents come in both liquid and solid forms. Existing chemical agents are generally administered in two ways: directly into the sewage treatment tank. The tank is equipped with multiple blades, driven by an electric motor, which agitate the sewage within the tank to improve its fluidity. Once the chemical is added to the tank, the blades quickly and evenly mix the chemical, thereby improving water purification efficiency. The first method is simple and effective, making it highly suitable for small sewage treatment tanks. However, it is less suitable for large, typically larger, sewage treatment tanks. This is especially true when administering solid chemicals, which are difficult to dissolve in water, resulting in low water purification efficiency and longer purification times. This is often achieved by adding blades to increase the agitation range of the sewage, but this increases equipment cost and requires significant space.

[0004] The second method involves setting up a transfer tank, where the chemicals are first added and mixed evenly before being transferred to the sewage treatment tank. This method requires an additional transfer tank and mixing equipment, which takes up a lot of space and increases the water purification process time. Summary of the Invention

[0005] (1) Technical issues to be resolved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a sewage treatment device for industrial parks, which solves the technical problems of large space occupied by the sewage treatment device and long water purification time when purifying water in large sewage treatment pools.

[0007] (2) Technical solution

[0008] In order to achieve the above-mentioned object, the sewage treatment device for industrial parks of the present invention includes a box body, a guide plate, a rotary drive, an elastic mechanism and a first propeller;

[0009] The guide plate is arranged at the bottom end of the inner wall of the box;

[0010] The elastic mechanism is rotatably connected to the side wall of the box; one end of the elastic mechanism is connected to the rotating shaft of the rotary drive, and the other end is connected to the first propeller; the first propeller is arranged inside the box;

[0011] When the rotary drive rotates forward, the elastic mechanism contracts, and the first propeller rotates forward synchronously at the first working position; when the rotary drive reverses or stops working, the elastic mechanism resets, and the first propeller reverses at the second working position.

[0012] Optionally, the elastic mechanism includes a first telescopic rod, a first chuck, a first sleeve and a first spring;

[0013] One end of the first telescopic rod is connected to the rotating shaft of the rotary driver, and the other end is connected to the first chuck;

[0014] One end of the first spring is connected to the first chuck, and the other end is connected to the inner wall of the first sleeve;

[0015] A plurality of first sliding grooves are provided on the inner wall of the first sleeve along the radial direction of the first sleeve;

[0016] Along the radial direction of the first chuck, the outer wall of the first chuck is connected with multiple first sliders; the multiple first sliders and the multiple first sliding grooves are slidingly connected one by one, so that the first sleeve can move along the axial direction of the first telescopic rod.

[0017] Optionally, the first spring is a torsion spring.

[0018] Optionally, the elastic mechanism further includes a second telescopic rod, a second chuck, a second sleeve and a second spring; the sewage treatment device further includes a second propeller;

[0019] The second sleeve is connected to the free end of the first sleeve; one end of the second telescopic rod is connected to the second chuck, and the other end is connected to the second propeller; one end of the second spring is connected to the second chuck, and the other end is connected to the inner wall of the second sleeve;

[0020] A plurality of second sliding grooves are provided on the inner wall of the second sleeve along the radial direction of the second sleeve;

[0021] Along the radial direction of the second chuck, the outer wall of the second chuck is connected with multiple second sliders; the multiple second sliders and the multiple second sliding grooves are slidingly connected one by one, so that the second sleeve can move along the axial direction of the second telescopic rod.

[0022] Optionally, the free end of the second telescopic rod is rotatably connected to the inner wall of the box.

[0023] Optionally, the first propeller and the second propeller have the same or opposite rotation directions.

[0024] Optionally, the rotary drive includes a transmission, a driving bevel gear, a first driven bevel gear, a second driven bevel gear, a third sleeve and a bracket; the sewage treatment device also includes a third propeller;

[0025] The driving bevel gear is connected to the rotating shaft of the transmission machine; the first driven bevel gear is meshed with the lower end of the driving bevel gear for transmission; the second driven bevel gear is meshed with the upper end of the driving bevel gear for transmission;

[0026] One end of the third sleeve is connected to the second driven bevel gear, and the other end is provided with the third propeller;

[0027] The first telescopic rod is connected to the first driven bevel gear;

[0028] The rotating shaft of the transmission machine, the first driven bevel gear and the third sleeve are all rotatably connected to the bracket.

[0029] Optionally, the rotation axis of the rotary drive is arranged perpendicular to or parallel to the side wall of the box.

[0030] Optionally, the top of the box is connected to a feed inlet.

[0031] Optionally, a sewage outlet is provided at the bottom end of the box;

[0032] The guide plate is arranged obliquely, and one end of the guide plate facing downward is connected to the sewage outlet.

[0033] (3) Beneficial effects

[0034] The beneficial effects of the present invention are:

[0035] One end of the elastic mechanism is connected to the rotating shaft of the rotary driver, and the other end is connected to the first propeller, so that the rotary driver can drive the first propeller to rotate synchronously; and the elastic mechanism itself can have a certain elasticity and can extend or contract, thereby driving the first propeller to move between the first working position and the second working position, that is, the first propeller can move along its own axial direction, realizing multi-station operation of a single propeller. The equipment occupies a small space and has a large stirring range for sewage, which can effectively improve the fluidity of sewage, thereby improving the dissolution efficiency of chemical agents and shortening the water purification time.

[0036] The sewage treatment device has four operating states. The first operating state is the retracted rotation state, in which the rotary drive rotates forward, and the sewage applies a reaction force to the first propeller, pushing the first propeller toward the rotary drive and compressing the elastic mechanism until the first propeller moves to the first operating position and continues to rotate forward. The second operating state is the extended rotation state, similar to the first operating state, in which the rotary drive rotates backward. The sewage applies a reaction force to the first propeller, pushing the first propeller away from the rotary drive, and the elastic mechanism extends until the first propeller moves to the second operating position and continues to rotate backward. The third operating state is the alternating rotation state, in which the rotary drive alternates between forward and reverse rotation, causing the first propeller to reciprocate and rotate between the first and second operating positions. The fourth operating state is the positioning rotation state, in which the reaction force applied by the sewage to the first propeller is adjusted by adjusting the forward rotation speed of the rotary drive, causing the first propeller to move to a preset position and continue to rotate forward. The four working states of the sewage treatment device increase the stirring range of the first propeller, have a flexible operating mode, and improve the adaptability of the stirring range to sewage in sewage treatment tanks of different sizes, as well as the adaptability of the stirring range to sewage in the same large sewage treatment tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic structural diagram of a sewage treatment device for an industrial park according to the present invention;

[0038] Figure 2 Schematic diagram of the structure of the elastic mechanism in the first embodiment of the present invention;

[0039] Figure 3 is a schematic structural diagram of a first chuck of the present invention;

[0040] Figure 4 It is a structural schematic diagram of the first sleeve of the present invention;

[0041] Figure 5 2 is a schematic structural diagram of an elastic mechanism in a second embodiment of the present invention;

[0042] Figure 6 is a schematic structural diagram of the second propeller and the elastic mechanism of the present invention;

[0043] Figure 7 This is a schematic structural diagram of an implementation method in the second embodiment of the present invention;

[0044] Figure 8 This is a structural diagram of another implementation method in the second embodiment of the present invention;

[0045] Figure 9 A schematic structural diagram of a rotary driver according to a third embodiment of the present invention;

[0046] Figure 10 Schematic diagram of the connection between the first driven bevel gear and the elastic mechanism of the present invention.

[0047] [Description of Reference Numerals]

[0048] 1: Box body; 11: Feed inlet; 12: Water inlet; 13: Sewage outlet;

[0049] 2: drainage plate;

[0050] 3: rotary drive; 31: transmission; 32: driving bevel gear; 33: first driven bevel gear; 34: second driven bevel gear; 35: third sleeve; 36: bracket;

[0051] 4: elastic mechanism; 41: first telescopic rod; 42: first chuck; 421: first slider; 43: first sleeve; 431: first slide; 44: first spring; 45: second telescopic rod; 46: second chuck; 47: second sleeve; 471: second slide; 48: second spring;

[0052] 5: first propeller;

[0053] 6: Second propeller;

[0054] 7: The third propeller. DETAILED DESCRIPTION

[0055] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0056] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0057] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referenced. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this disclosure, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0058] In the present invention, unless otherwise specified or limited, the terms "connect," "fix," etc. should be understood in a broad sense. For example, "fix" can mean fixed connection, detachable connection, or integration; "connection" can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0059] See also Figure 1 The present invention provides a sewage treatment device for an industrial park, which includes a housing 1, a drainage plate 2, a rotary drive 3, an elastic mechanism 4, and a first propeller 5; the drainage plate 2 is provided at the bottom end of the inner wall of the housing 1; the elastic mechanism 4 is rotatably connected to the side wall of the housing 1; one end of the elastic mechanism 4 is connected to the rotating shaft of the rotary drive 3, and the other end is connected to the first propeller 5; the first propeller 5 is provided inside the housing 1; when the rotary drive 3 rotates forward, the elastic mechanism 4 contracts, and the first propeller 5 rotates forward synchronously at the first working position; when the rotary drive 3 reverses or stops working, the elastic mechanism 4 resets, and the first propeller 5 reverses at the second working position. The resetting of the elastic mechanism 4 refers to the elastic mechanism 4 returning to its original position from a contracted state, or the elastic mechanism 4 does not move in its original position.

[0060] It should be noted that the propeller's rotation direction is linked to the direction of rotation of the rotary actuator 3. For example, when the rotary actuator 3 rotates unidirectionally, the left-hand propeller rotates in its original position, while the right-hand propeller compresses the elastic mechanism 4 and moves toward the rotary actuator 3. The propeller's rotation direction can be set according to actual needs. In this embodiment, the rotary actuator 3 is fixed. When the rotary actuator 3 rotates forward, the elastic mechanism 4 contracts. When the rotary actuator 3 rotates reversely, the elastic mechanism 4 remains in its original position and does not move. When the rotary actuator 3 rotates reversely and the elastic mechanism 4 changes from the contracted state to the original position, the elastic mechanism 4 extends until it returns to its original position.

[0061] One end of the elastic mechanism 4 is connected to the rotating shaft of the rotary driver 3, and the other end is connected to the first propeller 5, so that the rotary driver 3 can drive the first propeller 5 to rotate synchronously; and the elastic mechanism 4 itself can have a certain elasticity and can extend or contract, thereby driving the first propeller 5 to move between the first working position and the second working position, that is, the first propeller 5 can move along its own axial direction, realizing multi-station operation of a single propeller. The equipment occupies a small space and has a large stirring range for sewage, which can effectively improve the fluidity of sewage, thereby improving the dissolution efficiency of chemical agents and shortening the water purification time.

[0062] The sewage treatment device has four operating modes. The first operating mode is the retracted rotation mode, in which the rotary drive 3 rotates forward. The sewage exerts a reaction force on the first propeller 5, pushing it toward the rotary drive 3 and compressing the elastic mechanism 4 until the first propeller 5 moves to the first operating position and continues to rotate forward. The rotary drive 3 can operate at full power. The second operating mode is the extended rotation mode. Similar to the first operating mode, the rotary drive 3 rotates backward. The sewage exerts a reaction force on the first propeller 5, pushing it away from the rotary drive 3. The elastic mechanism 4 extends until the first propeller 5 moves to the second operating position and continues to rotate backward. The rotary drive 3 can operate at full power. The third operating mode is the alternating rotation mode, in which the rotary drive 3 rotates forward and backward alternately, causing the first propeller 5 to reciprocate and rotate between the first and second operating positions. Furthermore, during the resetting process of the elastic mechanism 4, the rotary drive 3 can stop operating, and the elastic mechanism 4 uses its own elastic force to push the first propeller 5 back to its original position, saving electricity. The fourth operating state is the fixed rotation state. By adjusting the forward rotation speed of the slewing driver 3, the reaction force exerted by the sewage on the first propeller 5 is adjusted, causing the first propeller 5 to move to a preset position and continue forward rotation. The sewage treatment device's four operating states increase the stirring range of the first propeller 5, providing flexible operation and improving the adaptability of the stirring range to sewage in sewage treatment tanks of different sizes, as well as to sewage in the same large sewage treatment tank.

[0063] Propellers are widely used in the fields of ships and aviation. Taking ships as an example, based on Newton's third law and Bernoulli's principle, they can propel the ship forward or brake suddenly when rotating, and are often used as propulsion devices. Due to its spiral shape, the water flow generated during rotation is also spiral, which means that eddy currents will be generated. In order to prevent the eddy currents from causing the ship to bump, the ship will overcome the eddy currents in material selection and manufacturing processes to ensure smooth operation of the ship. In other words, all a ship needs during normal forward movement is a steady propulsion force, and eddy currents are not used in any additional way. Traditional propellers are used to provide thrust to drive the ship to move; the present invention uses the thrust generated by the propeller to adjust the operating position of the propeller. When the propeller stirs, vortexes are generated, but the ship does not effectively utilize the vortexes, and the vortexes generated by the ship have a small amount of volume. The present invention uses the box body 1 as the boundary, and the vortexes are easier to form and have a larger volume, which greatly improves the fluidity of the sewage. At the same time, the center of the vortex is the singularity, and the singularity is a vacuum or low-pressure area. The external high-pressure water flows toward the singularity and squeezes it through the bolt-like flow trend of the water flow and the low-pressure suction, which can effectively squeeze and crush the solid chemical agents, thereby improving the dissolution efficiency of the solid chemical agents.

[0064] First embodiment:

[0065] like Figures 2 to 4As shown, the elastic mechanism 4 includes a first telescopic rod 41, a first chuck 42, a first sleeve 43 and a first spring 44; the rotary drive 3 can be selected from an electric motor or a motor, one end of the first telescopic rod 41 is connected to the rotating shaft of the rotary drive 3, and the other end is connected to the first chuck 42; one end of the first spring 44 is connected to the first chuck 42, and the other end is connected to the inner wall of the first sleeve 43; along the radial direction of the first sleeve 43, a plurality of first sliding grooves 431 are provided on the inner wall of the first sleeve 43; along the radial direction of the first chuck 42, a plurality of first sliders 421 are connected to the outer wall of the first chuck 42; the plurality of first sliders 421 and the plurality of first sliding grooves 431 are slidably connected in a one-to-one correspondence, so that the first sleeve 43 can move along the axial direction of the first telescopic rod 41.

[0066] Specifically, Figure 1 To illustrate the position shown, when the rotary drive 3 rotates forward, the first telescopic rod 41 rotates synchronously forward. The first slider 421 on the first telescopic rod 41 drives the first sleeve 43 to rotate synchronously forward via the first slide slot 431. The first sleeve 43 then drives the first propeller 5 to rotate synchronously forward. The sewage exerts a reaction force to the left on the first propeller 5. Simultaneously, the sewage exerts a reaction force on the first propeller 5, which drives the first sleeve 43 toward the rotary drive 3. The first sleeve 43 compresses the first spring 44 until it is fully compressed, and the first propeller 5 operates in a retracted rotation state. Alternatively, the first spring 44 is partially compressed, and the elastic force of the first spring 44 on the first sleeve 43 offsets the reaction force of the sewage. The first propeller 5 is in the first working position, and the sewage treatment device operates in a positioned rotation state. When rotary drive 3 reverses, the sewage exerts a rightward reaction force on first propeller 5. Since rotary drive 3 is fixed, first sleeve 43 is also fixed. At this point, first propeller 5 cannot move axially and can only reverse in situ. First propeller 5 is in the second operating position, and the sewage treatment device operates in an extended rotational state. The flexibility of first propeller 5 in both the positioned and extended rotational states allows a single propeller to cover mixing operations in both the first and second operating positions, eliminating the need for two propellers as in the prior art, effectively saving equipment costs.

[0067] When the rotary driver 3 rotates alternately forward and reverse, the first propeller 5 reciprocates and rotates between the first working position and the second working position, and the sewage treatment device operates in an alternating rotation state. The first propeller 5 in the alternating rotation state moves axially while rotating, which can cover the blind spot in the area between the first working position and the second working position, further increasing the stirring range of the first propeller 5. In addition, the speed, power and other parameters of the rotary driver 3 can be adjusted according to the actual operating position requirements of the first propeller 5, so that the elastic force of the first spring 44 and the reaction force exerted by the sewage are offset, and the first propeller 5 is moved to a preset position, so that the sewage treatment device operates in a positioned rotation state to perform stirring operations in the designated area, effectively ensuring the stirring effect.

[0068] Furthermore, the first spring 44 is a torsion spring. As the torsion spring transitions from a compressed state to its original position, it applies a torque to the first propeller 5. When the first propeller 5 is in the first operating position and about to move to the second operating position, the torsion spring can quickly propel the first propeller 5 to the second operating position, even if the slewing drive 3 is unpowered and idling. The provision of a torsion spring effectively reduces power consumption during alternating rotation of the sewage treatment plant, thereby reducing water purification costs.

[0069] Second embodiment:

[0070] See also Figures 5 to 8 The elastic mechanism 4 also includes a second telescopic rod 45, a second chuck 46, a second sleeve 47 and a second spring 48; the sewage treatment device also includes a second propeller 6; the second sleeve 47 is connected to the free end of the first sleeve 43; one end of the second telescopic rod 45 is connected to the second chuck 46, and the other end is connected to the second propeller 6; one end of the second spring 48 is connected to the second chuck 46, and the other end is connected to the inner wall of the second sleeve 47; along the radial direction of the second sleeve 47, a plurality of second sliding grooves 471 are provided on the inner wall of the second sleeve 47; along the radial direction of the second chuck 46, a plurality of second sliders are connected to the outer wall of the second chuck 46; the plurality of second sliders and the plurality of second sliding grooves 471 are slidably connected in a one-to-one correspondence, so that the second sleeve 47 can move along the axial direction of the second telescopic rod 45. The second telescopic rod 45 , the second chuck 46 , the second sleeve 47 and the second spring 48 are arranged in analogy with the first telescopic rod 41 , the first chuck 42 , the first sleeve 43 and the first spring 44 , and the principles and functions are the same, so they will not be described in detail.

[0071] In one embodiment, if Figure 5 and Figure 7As shown, when the spiral rotation directions of the first propeller 5 and the second propeller 6 are opposite, the rotary drive 3 rotates forward so that the first propeller 5 and the second propeller 6 move in opposite directions, effectively expanding the distance between the first propeller 5 and the second propeller 6, so that the sewage treatment device can cover a larger stirring range.

[0072] In another embodiment, Figure 8 As shown, when the spiral rotation directions of the first propeller 5 and the second propeller 6 are the same, the first propeller 5 and the second propeller 6 move toward the rotary drive 3 at the same time when the rotary drive 3 rotates forward, thereby realizing synchronous adjustment of the operating positions of the first propeller 5 and the second propeller 6 to enhance stirring of different sewage areas.

[0073] Of course, the first chuck 42 can also be disposed on the outer wall of the first sleeve 43, with the first telescopic rod 41 sleeved outside the first sleeve 43, allowing the first sleeve 43 to slide within the first telescopic rod 41; the same applies to the second telescopic rod 45, the second chuck 46, and the second sleeve 47; the first spring 44 and the second spring 48 can be disposed on either side of the corresponding chuck. Conventional modifications and combinations of the connection structure of the elastic mechanism 4 enrich the combination diversity of the first propeller 5 and the second propeller 6 and should also fall within the scope of protection of the present invention, as long as the first propeller 5 and the second propeller 6 can achieve adjustment of the spacing, and the adjustment of the first propeller 5 and the second propeller 6 to different working positions at the same spacing.

[0074] When the first propeller 5 and the second propeller 6 rotate in opposite directions, the vortices they create also rotate in opposite directions. These vortices collide with each other, generating a large number of bubbles. The bubbles then collapse, causing cavitation and accelerating the dissolution of the solid chemical. When the first propeller 5 and the second propeller 6 rotate in the same direction, the wastewater flows in the same direction, and the vortices they create overlap, enhancing its fluidity.

[0075] Secondly, the free end of the second telescopic rod 45 is rotatably connected to the inner wall of the box body 1. Rotatingly connecting the inner wall of one side of the box body 1 to the first telescopic rod 41 and the inner wall of the other side to the second telescopic rod 45 can effectively ensure the support stability of the elastic mechanism 4 when multiple propellers are installed, so that more retractable propellers can be installed on the elastic mechanism 4.

[0076] Third embodiment:

[0077] like Figure 9 and Figure 10As shown, the rotary drive 3 includes a transmission 31, a driving bevel gear 32, a first driven bevel gear 33, a second driven bevel gear 34, a third sleeve 35, and a bracket 36. The sewage treatment device also includes a third propeller 7. The transmission 31 is an electric motor. The driving bevel gear 32 is connected to the rotating shaft of the transmission 31. The first driven bevel gear 33 meshes with the lower end of the driving bevel gear 32 for transmission. The second driven bevel gear 34 meshes with the upper end of the driving bevel gear 32 for transmission. One end of the third sleeve 35 is connected to the second driven bevel gear 34, and the other end is provided with the third propeller 7. The first telescopic rod 41 is connected to the first driven bevel gear 33. The rotating shaft of the transmission 31, the first driven bevel gear 33, and the third sleeve 35 are all rotatably connected to the bracket 36. The bracket 36 consists of three bearings and two connecting rods. The three bearings are rotatably connected to the rotating shaft of the transmission 31, the bottom surface of the first driven bevel gear 33, and the third sleeve 35, respectively. The three bearings are connected by two connecting rods. The bearing on the bottom surface of the first driven bevel gear 33 serves as a support seat and can be connected to the wall surface of the box body 1 or to an external rigid component.

[0078] Figure 9 The diagram shows a coaxial counter-rotating propeller structure. This structure uses a transmission 31 to drive the second and third propellers 6 and 7 in synchronous, counter-rotating rotations. Because the torques of the two propellers are in opposite directions, they cancel each other out, resulting in a highly stable transmission. The first telescopic rod 41 passes through the second driven bevel gear 34 and the third sleeve 35, and is slidably connected to the first sleeve 43 via a first slider 421. The third sleeve 35 and the first telescopic rod 41 rotate independently of each other, serving as the drive shaft for the third propeller 7. When the transmission 31 rotates forward, the reaction force of the sewage is transmitted to the first sleeve 43 via the third propeller 7. The first sleeve 43 compresses the first spring 44 and moves axially, adjusting the spacing between the first and third propellers 5 and 7. When the transmission 31 rotates reversely, the first telescopic rod 41 and the first sleeve 43 axially constrain the first propeller 5, preventing axial movement and allowing the transmission 31 to operate at full power.

[0079] Furthermore, the rotating shaft of the rotary drive 3 can be arranged perpendicularly or parallel to the sidewalls of the housing 1, either arrangement being optional or a combination. Specifically, arranging the elastic mechanism 4 perpendicularly or parallel to the sidewalls of the housing 1 can produce different effects. When the elastic mechanism 4 is arranged vertically, the eddy currents generated by the propeller can flush the sidewalls of the housing 1, making it suitable for housings 1 with large lengths and widths (i.e., housings 1 such as sewage treatment tanks). When the elastic mechanism 4 is arranged parallelly, the eddy currents generated by the propeller can flush the top and bottom surfaces of the housing 1, making it suitable for housings 1 with large heights.

[0080] Secondly, the top of the box 1 is connected to a feed port 11 for adding chemicals. Chemicals are added from the top of the box 1, and the propeller fully stirs the sewage, allowing the chemicals to quickly dissolve in the sewage and evenly fill the box 1.

[0081] In addition, a sewage outlet 13 is provided at the bottom of the box body 1; the drainage plate 2 is tilted, and the downwardly tilted end is connected to the sewage outlet 13. After the rotary drive 3 stops running, the sediment in the sewage treatment tank falls onto the drainage plate 2 and accumulates. After the valve on the sewage outlet 13 is opened, the sediment is discharged through the sewage outlet 13. Figure 1 Taking the first embodiment shown as an example, when the first propeller 5 rotates, the sewage flows in a spiral shape, forming a singular point with the first propeller 5 as the center, and most of the sediments gather at the singular point. After the water purification is completed, the rotary drive 3 stops running, and the sediments at the singular point fall naturally, and the falling position is close to the sewage outlet 13, which is convenient for subsequent sewage discharge. Similarly, for Figure 9 In the third embodiment shown, the drop location of the sediment at the singular point is concentrated at the bottom center of the box body 1. The guide plate 2 can be configured as an angular structure, that is, two guide plates 2 are welded at a certain angle, and the sewage outlet 13 is located at the weld between the two guide plates 2. In short, based on the different embodiments, the shape of the guide plate 2 and the location of the sewage outlet 13 can be adjusted accordingly to effectively guide the drop location of the sediment.

[0082] It should be understood that the above description of the specific embodiments of the present invention is merely for the purpose of illustrating the technical approach and features of the present invention. Its purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. However, the present invention is not limited to the above-described specific embodiments. Any changes or modifications made within the scope of the claims of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A sewage treatment device for an industrial park, characterized in that: The sewage treatment device comprises a housing (1), a drainage plate (2), a rotary drive (3), an elastic mechanism (4) and a first propeller (5); The guide plate (2) is arranged at the bottom end of the inner wall of the box body (1); The elastic mechanism (4) is rotatably connected to the side wall of the box (1); one end of the elastic mechanism (4) is connected to the rotating shaft of the rotary driver (3), and the other end is connected to the first propeller (5); the first propeller (5) is arranged inside the box (1); When the rotary drive (3) rotates forward, the elastic mechanism (4) contracts, and the first propeller (5) rotates forward synchronously at the first working position; when the rotary drive (3) rotates reversely or stops working, the elastic mechanism (4) resets, and the first propeller (5) rotates reversely at the second working position; The elastic mechanism (4) includes a first telescopic rod (41), a first chuck (42), a first sleeve (43) and a first spring (44); one end of the first telescopic rod (41) is connected to the rotating shaft of the rotary driver (3), and the other end is connected to the first chuck (42); one end of the first spring (44) is connected to the first chuck (42), and the other end is connected to the inner wall of the first sleeve (43); along the radial direction of the first sleeve (43), a plurality of first sliding grooves (431) are provided on the inner wall of the first sleeve (43); along the radial direction of the first chuck (42), a plurality of first sliders (421) are connected to the outer wall of the first chuck (42); the plurality of first sliders (421) and the plurality of first sliding grooves (431) are slidably connected in a one-to-one correspondence so that the first sleeve (43) can move axially along the first telescopic rod (41).

2. The sewage treatment device for industrial parks according to claim 1, characterized in that: The first spring (44) is a torsion spring.

3. The sewage treatment device for industrial parks according to claim 1, characterized in that: The elastic mechanism (4) further includes a second telescopic rod (45), a second chuck (46), a second sleeve (47) and a second spring (48); the sewage treatment device further includes a second propeller (6); The second sleeve (47) is connected to the free end of the first sleeve (43); one end of the second telescopic rod (45) is connected to the second chuck (46), and the other end is connected to the second propeller (6); one end of the second spring (48) is connected to the second chuck (46), and the other end is connected to the inner wall of the second sleeve (47); A plurality of second sliding grooves (471) are provided on the inner wall of the second sleeve (47) along the radial direction of the second sleeve (47); Along the radial direction of the second chuck (46), the outer wall of the second chuck (46) is connected with a plurality of second sliders; the plurality of second sliders and the plurality of second sliding grooves (471) are slidably connected in a one-to-one correspondence, so that the second sleeve (47) can move along the axial direction of the second telescopic rod (45).

4. The sewage treatment device for industrial parks according to claim 3, characterized in that: The free end of the second telescopic rod (45) is rotatably connected to the inner wall of the box body (1).

5. The sewage treatment device for industrial parks according to claim 3, characterized in that: The first propeller (5) and the second propeller (6) have the same or opposite rotation directions.

6. The sewage treatment device for industrial parks according to claim 1, characterized in that: The rotary drive (3) includes a transmission (31), a driving bevel gear (32), a first driven bevel gear (33), a second driven bevel gear (34), a third sleeve (35) and a bracket (36); the sewage treatment device also includes a third propeller (7); The driving bevel gear (32) is connected to the rotating shaft of the transmission machine (31); the first driven bevel gear (33) is meshed with the lower end of the driving bevel gear (32) for transmission; the second driven bevel gear (34) is meshed with the upper end of the driving bevel gear (32) for transmission; One end of the third sleeve (35) is connected to the second driven bevel gear (34), and the other end is provided with the third propeller (7); The first telescopic rod (41) is connected to the first driven bevel gear (33); The rotating shaft of the transmission machine (31), the first driven bevel gear (33) and the third sleeve (35) are all rotatably connected to the bracket (36).

7. The sewage treatment device for an industrial park according to any one of claims 1 to 6, characterized in that: The rotating shaft of the rotary driver (3) is arranged perpendicularly or parallel to the side wall of the box (1).

8. The sewage treatment device for an industrial park according to any one of claims 1 to 6, characterized in that: The top end of the box body (1) is connected to a feed port (11).

9. The sewage treatment device for an industrial park according to any one of claims 1 to 6, characterized in that: The bottom end of the box body (1) is provided with a sewage outlet (13); The guide plate (2) is arranged at an angle, and one end thereof that is inclined downward is connected to the sewage outlet (13).

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