Sewage treatment equipment based on environmental protection

Abstract

The invention relates to the technical field of sewage treatment, in particular to sewage treatment equipment based on environmental protection, the sewage treatment equipment comprises a first stirring part and a second stirring part which are coaxially arranged, the top end of a rotating shaft of the first stirring part is connected with a water wheel assembly receiving water flow impact, and the second stirring part is connected to the bottom of a base station through a detachable support; the rotating disc is connected with a rotating shaft of the first stirring piece through a centrifugal clutch structure and connected with the second stirring piece through a reverse transmission structure, under the low-load working condition, the centrifugal clutch structure is separated, only the first stirring piece operates, and energy consumption and mechanical loss are reduced; during high load, the centrifugal clutch structure is jointed, and the reverse transmission structure enables the double stirring pieces to coaxially and reversely rotate, so that the mixing efficiency of sewage and chemicals is improved; according to the invention, the problems of high energy consumption and low efficiency of rigid connection of traditional double stirring pieces are solved, and the energy-saving and high-efficiency requirements of sewage treatment are met.

Description

TECHNICAL FIELD

[0001] The present application relates to the sewage treatment technical field, especially to a sewage treatment equipment based on environmental protection. BACKGROUND

[0002] In the field of environmental protection, in order to improve the mixing reaction efficiency of sewage and reagent, some equipment is provided with a double stirring structure, but the existing double stirring structure is generally designed to be rigidly connected throughout the process, that is, the stirring structure is always in a linked state. From the perspective of energy consumption and equipment loss, the full connection of the double stirring structure makes the two stirring structures still need to be driven to rotate synchronously in the start-up stage or low load working condition, such as when the sewage inflow is small, which greatly increases the motor starting resistance and running energy consumption, causing energy waste. SUMMARY

[0003] The present application relates to the sewage treatment technical field, especially to a sewage treatment equipment based on environmental protection.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a sewage treatment equipment based on environmental protection, comprising a first stirring structure, which is rotatably connected to a base, and a water wheel assembly connected to the top end of the rotating shaft of the first stirring structure, wherein the water wheel assembly is configured to receive water flow impact and drive the first stirring structure to rotate. A second stirring structure is rotatably connected to a support, which is detachably installed at the bottom of the base, and the first stirring structure and the second stirring structure are coaxially arranged. A rotating disc is rotatably connected to the support, and the rotating disc is connected to the rotating shaft of the first stirring structure through a centrifugal clutch structure and connected to the second stirring structure through a reverse transmission structure. When the water flow impacts the water wheel assembly at high speed, the first stirring structure rotates at high speed, the centrifugal clutch structure is engaged with the rotating disc in response to the rotating speed of the first stirring structure, and the reverse transmission structure reverses the rotating direction of the rotating disc to the second stirring structure, so that the second stirring structure rotates reversely coaxially with the first stirring structure.

[0005] Further description of the above-mentioned scheme: The centrifugal clutch structure includes an inner ring coaxially fixed on the rotating shaft of the first stirring structure, and the inner ring is coaxially accommodated in the inner cavity of the rotating disc. The outer peripheral surface of the inner ring and the inner cavity wall of the rotating disc jointly form a rolling space, and a centrifugal trigger is movably arranged in the rolling space. The centrifugal trigger is configured to be thrown out radially outward under the action of centrifugal force generated by high-speed rotation of the first stirring structure and engaged with the inner cavity wall of the rotating disc.

[0006] Further description of the above-mentioned scheme: The sliding seat is fixedly installed in the raceway space, a sliding groove is formed in the radial direction of the raceway space, and the centrifugal trigger member is slidably matched with the sliding groove; the inner cavity of the sliding seat contains a first pre-tightening spring, one end of the first pre-tightening spring is abutted against the inner cavity wall of the sliding seat, and the other end is abutted against the centrifugal trigger member, for applying a pre-tightening force to the centrifugal trigger member.

[0007] As a further description of the above scheme: The reverse transmission structure comprises a first bevel gear installed at the bottom of the rotating disc, the first bevel gear is meshed with a second bevel gear, the second bevel gear is rotatably connected with the support, and the second bevel gear is meshed with a third bevel gear, and the third bevel gear is installed at the top end of the second stirring member.

[0008] As a further description of the above scheme: The water wheel assembly comprises a rotating disc installed at the top end of the first stirring member, a plurality of groups of detachable water wheel blades are equidistantly arranged on the outer portion of the rotating disc in the circumferential direction; each group of water wheel blades is tightly connected with the rotating disc through two groups of bolts and nuts.

[0009] As a further description of the above scheme: The support is fixedly connected with the base through a bolt, and the bolt is threadedly matched with the base.

[0010] As a further description of the above scheme: The first stirring member and the second stirring member adopt the same rotating body structure, the rotating body structure comprises a stirring shaft corresponding connected with the water wheel assembly and the reverse transmission structure, and a stirring blade movably connected with the end portion of the stirring shaft through an elastic assembly.

[0011] As a further description of the above scheme: The elastic assembly comprises a push piece fixedly installed at the root portion of the stirring blade, a sliding groove is formed in the end portion of the stirring shaft, the push piece is slidably matched in the sliding groove, a second pre-tightening spring is installed in the inner cavity of the sliding groove, one end of the second pre-tightening spring is abutted against the inner wall of the sliding groove, and the other end is abutted against the push piece, so that the elastic swing or reset of the stirring blade is realized through the pre-tightening force of the second pre-tightening spring.

[0012] Compared with the prior art, the beneficial effects of the present application are: Compared with the existing sewage treatment equipment with rigid connection of double stirring pieces throughout the process, the centrifugal clutch structure can dynamically control the linkage state of the double stirring pieces according to the water flow speed, the single stirring piece operates under low load working condition, the motor starting resistance and operation energy consumption are significantly reduced, and the equipment mechanical loss is reduced; the centrifugal clutch structure is engaged under high load working condition, and cooperates with the reverse transmission structure to drive the coaxial reverse rotation of the double stirring pieces, breaks the laminar flow state of single direction stirring, increases the contact area and time of sewage and medicament, and improves the mixing reaction efficiency; meanwhile, the detachable water wheel piece of the water wheel assembly and the threaded connection of the support design facilitate component maintenance and replacement, improve the maintenance convenience, and fully adapt to the energy-saving and efficient application requirements of sewage treatment equipment in the environmental protection field. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0014] Figure 1 is an exploded schematic view of the overall structure of the present application; Figure 2 is an exploded schematic view of the centrifugal clutch structure of the present application; Figure 3 is an enlarged view of structure A of the present application; Figure 4 is a schematic view of the reverse transmission structure of the present application; Figure 5 is a cross-sectional view of the overall structure of the present application; Figure 6 is a side view of the overall structure of the present application; Figure 7 is an enlarged view of structure B of the present application; Figure 8 is a side view of the overall structure of the present application.

[0015] Explanation of reference signs: 10, water wheel assembly; 101, wheel disc; 102, water wheel piece; 11, base; 12, first stirring piece; 13, support; 14, second stirring piece; 15, rotating disc; 20, centrifugal clutch structure; 201, inner ring; 202, raceway space; 203, centrifugal trigger; 204, sliding seat; 205, first pre-tightening spring; 30, reverse transmission structure; 301, first bevel gear; 302, second bevel gear; 303, third bevel gear; 40, rotating body structure; 401, stirring shaft; 402, stirring blade; 50, elastic assembly; 501, push piece; 502, second pre-tightening spring. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0017] Please refer to Figures 1-8 The present application provides a sewage treatment equipment based on environmental protection. When the sewage treatment process is started, sewage flows out through the lifting pump connecting pipeline, impacts the water wheel assembly 10 in the direction indicated by the arrow, and the impact force of the water flow acts on the water wheel assembly 10, which can drive the first stirring piece 12 to rotate and provide basic power for subsequent stirring and mixing. Meanwhile, a support 13 is detachably installed at the bottom of the base 11, the second stirring piece 14 is rotatably connected to the support 13, and the first stirring piece 12 and the second stirring piece 14 are coaxially arranged. This layout lays a structural foundation for the cooperative operation of the double stirring pieces. In addition, the rotating disc 15 is rotatably connected to the support 13, which is connected to the rotating shaft of the first stirring piece 12 through the centrifugal clutch structure 20 and is associated with the second stirring piece 14 through the reverse transmission structure 30. When the sewage flow is large and the water flow impacts the water wheel assembly 10 at high speed, the first stirring piece 12 is driven to rotate at high speed. At this time, the centrifugal clutch structure 20 engages the rotating disc 15 when the rotating speed of the first stirring piece 12 reaches the set value, and the rotating disc 15 rotates accordingly. Then, the reverse transmission structure 30 reverses the rotating direction of the rotating disc 15 to the second stirring piece 14, so that the second stirring piece 14 and the first stirring piece 12 rotate in opposite directions coaxially. In this way, the mixing reaction efficiency of sewage and medicament is improved under high load working conditions through the rotation of the double stirring pieces in different directions. When the first stirring piece 12 does not reach the threshold value of engaging the centrifugal clutch structure 20 at the start-up stage or low load working conditions such as small sewage inflow, the second stirring piece 14 is not linked with the first stirring piece 12, which avoids unnecessary increase of the starting resistance and operating energy consumption of the motor and solves the problem of energy waste caused by rigid connection of the traditional double stirring pieces.

[0018] The water wheel assembly 10 comprises a wheel disc 101 fixedly connected with the top end of the rotating shaft of the first stirring piece 12, a plurality of groups of water wheel blades 102 are equidistantly arranged along the circumferential direction of the outer periphery of the wheel disc 101, each group of water wheel blades 102 is detachably fastened to the wheel disc 101 through two groups of bolts and nuts, the detachable design facilitates the later maintenance and replacement of the water wheel blades 102, meanwhile, the second stirring piece 14 is rotatably connected to the support 13, the support 13 is fixedly connected to the bottom of the base 11 through bolts, and the bolts and the base 11 are in threaded cooperation, facilitating the disassembly and assembly of the support 13, the first stirring piece 12 and the second stirring piece 14 are coaxially arranged, which can avoid the occurrence of sewage stirring dead angle in the stirring process, and lays a structural foundation for the cooperative operation of the double stirring pieces.

[0019] In order to realize the linkage of the double stirring pieces as needed, the centrifugal clutch structure 20 comprises an inner ring 201 coaxially and fixedly connected with the rotating shaft of the first stirring piece 12, and the inner ring 201 is coaxially accommodated in the inner cavity of the rotating disc 15, the outer peripheral surface of the inner ring 201 and the inner cavity wall of the rotating disc 15 form an annular rolling groove space 202, a centrifugal trigger 203 is movably arranged in the rolling groove space 202, in order to ensure the accuracy of the movement track of the centrifugal trigger 203, a sliding seat 204 is fixedly installed in the rolling groove space 202, the sliding seat 204 is provided with a sliding groove along the radial direction of the rolling groove space 202, the centrifugal trigger 203 is slidably matched with the sliding groove, and the sliding groove can effectively avoid the problems of deviation and jamming of the centrifugal trigger 203 during movement.

[0020] Further, the inner cavity of the sliding seat 204 accommodates a first pre-tightening spring 205, one end of the first pre-tightening spring 205 abuts against the inner cavity wall of the sliding seat 204, and the other end abuts against the centrifugal trigger 203, for applying a pre-tightening force to the centrifugal trigger 203 towards the inner side of the rolling groove space 202, the size of the pre-tightening force can be adjusted according to the design working condition of the equipment, such as the low load rotating speed threshold, so as to accurately set the engagement rotating speed of the centrifugal clutch structure 20.

[0021] During the operation of the device: when in the starting stage or low load working condition, the water flow impacts the water wheel assembly 10 to drive the first stirring piece 12 to rotate at low speed, the inner ring 201 rotates at low speed synchronously with the rotating shaft, the centrifugal trigger 203 is subjected to a centrifugal force smaller than the pre-tightening force of the first pre-tightening spring 205, is constrained at one side of the sliding groove close to the inner ring 201, cannot contact the inner cavity wall of the rotating disc 15, and the centrifugal clutch structure 20 is in a separated state, so that the power of the first stirring piece 12 cannot be transmitted to the rotating disc 15, the second stirring piece 14 remains stationary, and only the first stirring piece 12 operates alone, which greatly reduces the operating energy consumption and reduces the meaningless mechanical loss of the device; when the water flow impacts the water wheel assembly 10 at high speed, the rotating speed of the first stirring piece 12 increases to a set threshold, the centrifugal trigger 203 is subjected to a centrifugal force greater than the pre-tightening force of the first pre-tightening spring 205, overcomes the spring force and is thrown out radially to the outside of the raceway space 202 along the sliding groove, and tightly engages with the inner cavity wall of the rotating disc 15, so that the centrifugal clutch structure 20 is switched to an engaged state, the power of the first stirring piece 12 is transmitted to the rotating disc 15 through the inner ring 201 and the centrifugal trigger 203, and the rotating disc 15 is driven to rotate synchronously with the first stirring piece 12.

[0022] The power transmission realized based on the centrifugal clutch structure 20 is used to further improve the mixing efficiency of sewage and medicament under high load working condition, and a reverse transmission structure 30 is arranged between the rotating disc 15 and the second stirring piece 14, the reverse transmission structure 30 comprises a first bevel gear 301 mounted at the bottom of the rotating disc 15, the first bevel gear 301 is engaged with a second bevel gear 302, the second bevel gear 302 is rotatably connected with the support 13 and can stably rotate under the drive of the first bevel gear 301; the second bevel gear 302 is engaged with a third bevel gear 303 at the same time, the third bevel gear 303 is fixedly installed at the top end of the second stirring piece 14, when the rotating disc 15 rotates with the first stirring piece 12, the first bevel gear 301 at the bottom of the rotating disc 15 rotates synchronously and drives the second bevel gear 302 to rotate through the engagement, and the second bevel gear 302 drives the third bevel gear 303 to rotate through the engagement; by means of the engagement transmission of the three groups of bevel gears, the rotation direction is converted, and finally the second stirring piece 14 and the first stirring piece 12 are in a coaxial reverse rotation state, the reverse rotation design can form a bidirectional vortex in the stirring cavity, break the laminar flow state of single direction stirring, increase the contact area and contact time of sewage and medicament, make the pollutants in the sewage fully react with the medicament, and significantly improve the sewage treatment efficiency under high load working condition.

[0023] The application optimizes the water power driving efficiency through the detachable water wheel piece 102 of the water wheel assembly 10, achieves convenient installation and maintenance through the threaded connection of the support 13, achieves the linkage of the double stirring pieces on demand through the centrifugal clutch structure 20, and achieves the coaxial reverse rotation of the double stirring pieces through the reverse transmission structure 30; compared with the design of the rigid connection of the double stirring pieces in the prior art, the application can dynamically switch the stirring mode according to the water flow speed: the single stirring piece operates under the low load working condition, and the energy consumption and equipment loss are reduced; the double stirring pieces are coaxially and reversely linked under the high load working condition, the mixing reaction efficiency is improved, and the application requirements of energy saving and high efficiency of the sewage treatment equipment in the environmental protection field are completely met.

[0024] In order to solve the problem that the fan blade cannot be adjusted in angle, the following scheme is adopted: the first stirring piece 12 and the second stirring piece 14 share the rotating body structure 40, the stirring shaft 401 is used as the power transmission core, and is connected with the water wheel assembly 10 for driving the first stirring piece 12 and the reverse transmission structure 30 for driving the second stirring piece 14, respectively, the water power of the water wheel assembly 10 and the reversing power of the reverse transmission structure 30 are transmitted to the stirring blade 402, and the elastic assembly 50 provides the movable connection for the stirring blade 402, so that the stirring blade 402 can be elastically adjusted relative to the stirring shaft 401.

[0025] Through the movable connection of the elastic assembly 50, the stirring blade 402 can provide buffering for the impact of impurities in sewage and the change of flow, so as to avoid damage of the stirring blade 402 and equipment jam caused by rigid connection, and the angle of the stirring blade 402 can be adjusted.

[0026] The paddle 501 at the root of the stirring blade 402 is embedded in the end groove of the stirring shaft 401, the second pre-tightening spring 502 is arranged in the groove, and the two ends are respectively abutted against the inner wall of the groove and the paddle 501; during stirring, if the stirring blade 402 is impacted by impurities in sewage and the load changes, the paddle 501 slides along the groove, and the second pre-tightening spring 502 is compressed or stretched, the elastic force acts on the paddle 501, and the stirring blade 402 is swung; after the impact or load disappears, the elastic force drives the paddle 501 to reset, and the stirring blade 402 returns to the initial angle.

[0027] In the face of the impact of impurities in sewage and the fluctuation of flow, the stirring blade 402 avoids the impact through elastic swinging, reduces the risk of jamming and wear, guarantees continuous and stable stirring, the elastic swinging of the stirring blade 402 can change the direction and speed of local water flow, break the laminar flow limitation of single stirring track, and promote the more sufficient mixing of sewage and medicament, especially under the high load working condition, the reverse rotation of the double stirring pieces is matched, the vortex disturbance is strengthened, and the sewage treatment efficiency is improved.

[0028] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A wastewater treatment device based on environmental protection, characterized in that, include: The first stirring element (12) is rotatably connected to the base (11). The top of the rotating shaft of the first stirring element (12) is connected to a water wheel assembly (10). The water wheel assembly (10) is configured to receive water flow impact and drive the first stirring element (12) to rotate. The second stirring element (14) is rotatably connected to the bracket (13), which is detachably installed on the bottom of the base (11). The first stirring element (12) and the second stirring element (14) are coaxially arranged. Turntable (15) is rotatably connected to the support (13). Turntable (15) is connected to the shaft of the first stirring component (12) through centrifugal clutch structure (20) and to the second stirring component (14) through reverse transmission structure (30). When the water flow impacts the water turbine assembly (10) at high speed, it drives the first stirring element (12) to rotate at high speed. The centrifugal clutch structure (20) engages the turntable (15) in response to the rotation speed of the first stirring element (12). The reverse transmission structure (30) transmits the rotation direction of the turntable (15) in the opposite direction to the second stirring element (14), so that the second stirring element (14) and the first stirring element (12) rotate in opposite directions on the same axis.

2. The wastewater treatment equipment based on environmental protection according to claim 1, characterized in that: The centrifugal clutch structure (20) includes an inner ring (201) coaxially fixed on the rotating shaft of the first stirring member (12). The inner ring (201) is coaxially housed in the inner cavity of the turntable (15). The outer circumference of the two rings and the inner cavity wall enclose a raceway space (202). A centrifugal trigger (203) is movably disposed in the raceway space (202).

3. The wastewater treatment equipment based on environmental protection according to claim 2, characterized in that: A slide (204) is fixed in the raceway space (202). The slide (204) has a sliding groove in the radial direction. The centrifugal trigger (203) is slidably adapted to the sliding groove. The inner cavity of the slide (204) is provided with a first preload spring (205), the two ends of which abut against the inner wall of the slide (204) and the centrifugal trigger (203) respectively, for applying a preload force to the centrifugal trigger (203).

4. The wastewater treatment equipment based on environmental protection according to claim 3, characterized in that: The centrifugal trigger (203) is configured to be thrown out radially outward along the raceway space (202) and engage with the inner wall of the turntable (15) under the action of centrifugal force generated by the high-speed rotation of the first stirring element (12).

5. The wastewater treatment equipment based on environmental protection according to claim 1, characterized in that: The reverse transmission structure (30) includes a first bevel gear (301) installed at the bottom of the turntable (15), the first bevel gear (301) meshing with a second bevel gear (302), the second bevel gear (302) being rotatably connected to the bracket (13), and the second bevel gear (302) meshing with a third bevel gear (303), the third bevel gear (303) being installed at the top of the second stirring member (14).

6. The wastewater treatment equipment based on environmental protection according to claim 1, characterized in that: The water turbine assembly (10) includes a wheel (101) installed on the top of the first stirring member (12), and the outer periphery of the wheel (101) is provided with a plurality of detachable water turbine blades (102) at equal intervals along the circumferential direction.

7. A wastewater treatment device based on environmental protection according to claim 6, characterized in that: Each set of water turbine blades (102) is fastened to the wheel disc (101) by two sets of bolts and nuts.

8. A wastewater treatment device based on environmental protection according to claim 1, characterized in that: The bracket (13) and the base (11) are fixedly connected by bolts, and the bolts are threaded into the base (11).

9. A wastewater treatment device based on environmental protection according to claim 1, characterized in that: The first stirring component (12) and the second stirring component (14) adopt the same rotating body structure (40). The rotating body structure (40) includes a stirring shaft (401) and stirring blades (402). The stirring shaft (401) is connected to the water turbine assembly (10) and the reverse transmission structure (30) respectively. The stirring blades (402) are movably connected to the end of the stirring shaft (401) through an elastic component (50).

10. A wastewater treatment device based on environmental protection according to claim 9, characterized in that: The elastic component (50) includes a paddle (501) fixed to the root of the stirring blade (402). The end of the stirring shaft (401) is provided with a sliding groove. The paddle (501) is slidably fitted in the sliding groove. The inner cavity of the sliding groove is provided with a second preload spring (502), the two ends of which abut against the inner wall of the sliding groove and the paddle (501) respectively.

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