Spiral-lifting device for canal algae

Abstract

This invention discloses a spiral-lift algae interception device for water channels. Following the direction of water flow from front to back, it includes an algae conveyor that transports algae in a left-right direction and a rectangular frame inclined from bottom to top. Several spiral-lift filters are arranged side-by-side along the upper left-right direction within the rectangular frame. A power transmission mechanism for driving the spiral-lift filters is located at the top of the rectangular frame. The algae conveyor is located on the upper rear side of the rectangular frame, and a discharge channel is located on the upper rear side of the spiral-lift filters. The outlet of the discharge channel faces rearward and is located directly above the algae conveyor. This invention features a simpler overall structure, with the spiral blades housed within a semi-circular tube, resulting in a very compact structure. This reduces the equipment failure rate and significantly improves safety and reliability. For the same cross-sectional area of ​​the inlet, this invention provides a larger algae interception area, better water permeability, and a greater algae interception capacity. The intermittent operation of the spiral blades for algae removal reduces power consumption and increases energy efficiency.

Description

Technical Field

[0001] This invention belongs to the field of channel pollution control technology, specifically relating to a spiral lifting and interception device for algae in water channels. Background Technology

[0002] In recent years, with the development of my country's water conservancy industry, the country has built more and more artificial canals to supply water to cities and factories and irrigate farmland. During the operation of these canals, under suitable climatic conditions, eutrophication occurs, and algae growth severely affects the quality of the water. Algae mixed with floating debris clogs the canal facilities, causing siltation. Dredging these canals annually requires a significant amount of manpower and resources and disrupts the normal production and daily life of the water-receiving units.

[0003] A Chinese invention patent discloses a mechanical algae removal device for water conveyance channels (patent number: CN201710779231.0), which has the following disadvantages or deficiencies in its rotary algae-blocking operation:

[0004] 1. The motor reducer drives the traction chain and algae-blocking net to work continuously for 24 hours to block algae. The algae attached to the surface of the stainless steel net are lifted to the water surface. High-pressure water needs to be sprayed on the back of the stainless steel net to wash the algae off the surface of the stainless steel net. This not only has a complex structure and high cost, but also has the disadvantages of high power and high energy consumption for algae removal.

[0005] 2. Since the left and right sides of the algae-blocking mesh are both in the water, and the double-layer arrangement in the direction of water flow increases the water flow resistance, thus affecting the water conveyance efficiency.

[0006] 3. The algae-blocking mesh is made of stainless steel mesh, which has a small permeable area and provides limited space for algae to accumulate. Summary of the Invention

[0007] In order to overcome the shortcomings of the prior art, the present invention provides a spiral lifting and intercepting device for algae in water channels that is simple in structure, highly reliable, has low water flow resistance, and provides a large space for algae to accumulate.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a spiral lifting algae interception device for water channels, with the water flow direction as the front to back direction, including an algae conveyor that conveys algae in the left and right direction and a rectangular frame that is inclined from bottom to top and backward. Several spiral lifting filters are arranged side by side in the left and right direction at the top of the rectangular frame. A power transmission mechanism for driving the spiral lifting filters is provided at the top of the rectangular frame. The algae conveyor is located on the upper rear side of the rectangular frame. A discharge channel is provided on the upper rear side of the spiral lifting filters. The outlet of the discharge channel is arranged backward and located directly above the algae conveyor.

[0009] Each spiral lift filter includes a vertically arranged semi-circular tube, a full-circular tube, and spiral blades with their center lines coinciding. The inner diameters of the semi-circular tube and the full-circular tube are equal. The upper end of the semi-circular tube is connected to the lower end of the full-circular tube. The front side of the semi-circular tube is open, and several water-permeable filter holes are opened on the semi-circular tube. The spiral blades are arranged inside the semi-circular tube and the full-circular tube. The maximum rotation diameter of the spiral blades is slightly smaller than the inner diameter of the semi-circular tube. The upper part of the spiral blades is coaxially fixedly connected to a drive shaft located in the upper part of the full-circular tube. The lower end of the drive shaft is flush with the lower end of the full-circular tube, and the upper end of the drive shaft is connected to the power transmission mechanism.

[0010] The power transmission mechanism includes a motor and several housings. Each circular tube has a housing at its upper end. The motor spindle is coaxially connected to a drive shaft. The drive shaft is horizontally arranged in the left-right direction and extends into and passes through all the housings. The drive shaft has a worm section located inside the housing. An output shaft coaxial with the drive shaft is rotatably arranged inside the housing. A worm wheel is installed on the output shaft, and the worm wheel meshes with the worm. The lower end of the output shaft is coaxially connected to the upper end of the drive shaft.

[0011] The rectangular frame includes two vertically arranged longitudinal beams, and several horizontal beams are arranged at intervals between the two longitudinal beams. The rear sides of the semi-circular tube and the full-circular tube are fixedly connected to the horizontal beams. The semi-circular tube and the full-circular tube are an integral structure. The lower ends of the two longitudinal beams are supported at the bottom of the water inlet. The left side of the left longitudinal beam contacts the left side wall of the water inlet, and the right side of the right longitudinal beam contacts the right side wall of the water inlet. The water-permeable filter holes are long holes that run vertically along the length direction.

[0012] The spiral blades are evenly perforated with several through holes.

[0013] A balancing air hole is provided on the front side of the upper part of the circular tube, located above the discharge channel.

[0014] Using the above technical solution, the specific working process of this invention is as follows: When algae in the water flow passes through the inlet, they adhere to and collect in a semi-circular pipe located below the water surface. After accumulating for a certain period of time (e.g., 1-2 hours), the motor is started. The motor drives the drive shaft to rotate, and all the screw sections on the drive shaft simultaneously drive a worm gear to rotate. The worm gear drives the transmission shaft and the spiral blades to rotate through the output shaft. During the rotation, the spiral blades transport the algae collected in the semi-circular pipe upwards. After the algae are transported upwards to the discharge channel connected to the rear side of the full-circular pipe, the discharge channel is inclined at the front and lower at the back. The algae slide backwards along the discharge channel onto the algae conveyor, which transports the algae to the left or right to the designated position. The algae conveyor uses a chain plate conveyor, which allows water to seep down during the conveying process.

[0015] The semi-circular tube has a large storage space inside, and the contact area between the semi-circular tube and the water is relatively increased, which increases the space for algae to collect and enhances the water permeability. While improving the water flow capacity, it is easy to collect algae, which can be well gathered in the semi-circular trough, making it convenient for the spiral blades to rotate and scoop up the algae.

[0016] The rectangular frame provides support for the spiral lift filter, ensuring that the semi-circular and full-circular tubes do not deform, and that the spiral blades can lift and transport algae normally.

[0017] The power transmission mechanism uses a motor to drive the entire drive shaft to rotate. The drive shaft drives the spiral blades to rotate through a worm gear mechanism, thereby enabling all spiral lifting filters to be lifted simultaneously.

[0018] The spiral blades are made of engineering plastics, possessing good wear resistance, toughness, and strength. The perforations not only reduce the weight and material usage of the spiral blades, but the hollow structure within the semi-circular tube also reduces water resistance and increases the tube's capacity. Furthermore, during algae lifting, especially after the algae enter the full-circular tube, they are subjected to axial compression, causing the water they contain to be squeezed out and seep downwards into the water body. As the algae move upwards within the full-circular tube, they seal the lower end of the tube, allowing the vents to connect with the atmosphere. Additionally, if the algae contain a large amount of water, it can be discharged through these vents.

[0019] In summary, compared with the prior art, the present invention eliminates the complex transmission structure, making the overall structure simpler. The spiral blades are set inside the semi-circular tube, making the structure very compact. The equipment failure rate is also reduced accordingly, and the safety and reliability are greatly improved. For the same cross-sectional area of ​​the water inlet, the present invention has a larger algae blocking area, better water permeability, and a larger algae blocking capacity. The spiral blades work intermittently to remove algae, requiring less power and being more energy-efficient. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention from one perspective;

[0021] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective;

[0022] Figure 3 yes Figure 1 Enlarged view of point A in the middle;

[0023] Figure 4 yes Figure 1 Enlarged view of point B in the middle. Detailed Implementation

[0024] like Figure 1-4As shown, the water channel algae spiral lifting interception device of the present invention, with the water flow direction as the front to back direction, includes an algae conveyor 1 that conveys algae in the left-right direction and a rectangular frame that is inclined from bottom to top and backward. Several spiral lifting filters are arranged side by side in the left-right direction at the top of the rectangular frame. A power transmission mechanism for driving the spiral lifting filters is provided at the top of the rectangular frame. The algae conveyor 1 is located on the upper rear side of the rectangular frame. A discharge channel 2 is provided on the upper rear side of the spiral lifting filters. The outlet of the discharge channel 2 is arranged rearward and located directly above the algae conveyor 1.

[0025] Each spiral lift filter includes a vertically arranged semi-circular tube 3, a full-circular tube 4, and spiral blades 5 with their center lines coinciding. The inner diameters of the semi-circular tube 3 and the full-circular tube 4 are equal. The upper end of the semi-circular tube 3 is connected to the lower end of the full-circular tube 4. The front side of the semi-circular tube 3 is open, and several water-permeable filter holes 6 are opened on the semi-circular tube 3. Figure 1 (A small portion is shown in the diagram). The spiral blade 5 is set inside the semi-circular tube 3 and the full-circular tube 4. The maximum rotation diameter of the spiral blade 5 is slightly smaller than the inner diameter of the semi-circular tube 3. The upper part of the spiral blade 5 is coaxially fixedly connected to a drive shaft (not shown in the figure) located in the upper part of the full-circular tube 4. The lower end of the drive shaft is flush with the lower end of the full-circular tube 4, and the upper end of the drive shaft is connected to the power transmission mechanism.

[0026] The power transmission mechanism includes a motor 7 and several housings 8. Each circular tube 4 has a housing 8 at its upper end. The main shaft of the motor 7 is coaxially connected to a drive shaft 9. The drive shaft 9 is horizontally arranged in the left-right direction. The drive shaft 9 extends into and passes through all the housings 8. The drive shaft 9 is provided with a worm section (not shown) located inside the housing 8. An output shaft (not shown) is rotatably arranged inside the housing 8 and is coaxial with the drive shaft. A worm wheel (not shown) is installed on the output shaft. The worm wheel meshes with the worm. The lower end of the output shaft is coaxially connected to the upper end of the drive shaft.

[0027] The rectangular frame includes two vertically arranged longitudinal beams 10, and several horizontal beams 11 arranged vertically and horizontally between the two longitudinal beams 10. The rear sides of the semi-circular tube 3 and the full-circular tube 4 are fixedly connected to the horizontal beams 11. The semi-circular tube 3 and the full-circular tube 4 are an integral structure. The lower ends of the two longitudinal beams 10 are supported at the bottom of the water inlet 12. The left side of the left longitudinal beam 10 is in contact with the left side wall of the water inlet 12, and the right side of the right longitudinal beam 10 is in contact with the right side wall of the water inlet 12. The water-permeable filter hole 6 is a long hole with its length along the vertical direction.

[0028] Several through holes 13 are evenly distributed on the spiral blade 5. Figure 1 (A small portion is shown in the diagram). A balance air hole 14 is provided on the front side of the upper part of the circular tube 4, located above the discharge channel 2.

[0029] The specific working process of this invention is as follows: When algae in the water flow passes through the inlet 12, they attach to and collect in the semi-circular pipe 3 located below the water surface. After accumulating for a certain period of time (e.g., 1-2 hours), the motor 7 is started. The motor 7 drives the drive shaft 9 to rotate. All the screw sections on the drive shaft 9 simultaneously drive a worm gear to rotate. The worm gear drives the transmission shaft and the spiral blades 5 to rotate through the output shaft. During the rotation, the spiral blades 5 transport the algae collected in the semi-circular pipe 3 upwards. After the algae are transported upwards to the discharge channel 2 connected to the rear side of the circular pipe 4, the discharge channel 2 is inclined at the front and lower at the back. The algae slide backwards along the discharge channel 2 onto the algae conveyor 1. The algae conveyor 1 transports the algae to the left or right to the designated position. The algae conveyor 1 uses a chain plate conveyor, which allows water to seep down during the conveying process.

[0030] The semi-circular tube 3 has a large storage space inside, and the contact area between the semi-circular tube 3 and water is relatively increased, which increases the space for algae to gather and enhances the water permeability. While improving the water flow capacity, it is easy to collect algae, which can be well gathered in the semi-circular trough, making it convenient for the spiral blade 5 to rotate and scoop up the algae.

[0031] The rectangular frame provides support for the spiral lift filter, ensuring that the semi-circular tube 3 and the full-circular tube 4 do not deform, and the spiral blades 5 can lift and transport algae normally.

[0032] The power transmission mechanism uses a motor 7 to drive the entire drive shaft 9 to rotate. The drive shaft 9 drives the spiral blades 5 to rotate through a worm gear mechanism, thereby enabling all spiral lifting filters to perform lifting operations simultaneously.

[0033] The spiral blade 5 is made of engineering plastic, possessing good wear resistance, toughness, and strength. The through-hole 13 not only reduces the weight and material usage of the spiral blade 5, but also, because the portion of the spiral blade 5 inside the semi-circular tube 3 is hollow, it reduces water resistance and increases the capacity of the semi-circular tube 3. Furthermore, during the process of lifting algae, especially after the algae enter the circular tube 4, the algae are subjected to axial compression, which forces the water contained within the algae to be squeezed and seep downwards into the water body. As the algae move upwards within the circular tube 4, they close the lower end of the tube 4, allowing the balancing vent 14 to connect with the atmosphere. Additionally, if the algae within the circular tube 4 has a large water content, it can be discharged through the balancing vent 14.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A spiral lift dewatering device for canal algae, characterized in that: The water flow direction is from front to back, including the algae conveyor conveying along the left and right directions and the rectangular frame arranged backwardly and upwardly, a plurality of spiral lifting filters are arranged side by side along the left and right directions in the rectangular frame, the power transmission mechanism for driving the spiral lifting filters is arranged on the top of the rectangular frame, the algae conveyor is arranged on the upper rear side of the rectangular frame, the discharge channel is arranged on the upper rear side of the spiral lifting filter, and the outlet of the discharge channel is arranged backward and above the algae conveyor. Each spiral lifting filter comprises a semicircular pipe, a whole circular pipe and a spiral blade arranged vertically and coaxially, the inner diameters of the semicircular pipe and the whole circular pipe are equal, the upper end of the semicircular pipe is connected with the lower end of the whole circular pipe, the front side of the semicircular pipe is open, a plurality of water-permeable filter holes are arranged on the semicircular pipe, the spiral blade is arranged in the semicircular pipe and the whole circular pipe, the maximum rotation diameter of the spiral blade is slightly smaller than the inner diameter of the semicircular pipe, the upper part of the spiral blade is fixedly connected with the transmission shaft arranged in the upper part of the whole circular pipe coaxially, the lower end of the transmission shaft is flush with the lower end of the whole circular pipe, and the upper end of the transmission shaft is in transmission connection with the power transmission mechanism. The rectangular frame comprises two vertical longitudinal beams arranged vertically, a plurality of transverse beams arranged in the upper and lower spaces horizontally between the two longitudinal beams, the rear side of the semicircular pipe and the whole circular pipe is fixedly connected with the transverse beam, the semicircular pipe and the whole circular pipe are integrated, the lower ends of the two longitudinal beams are supported on the bottom of the water inlet, the left side surface of the left longitudinal beam is in contact with the left side wall of the water inlet, the right side surface of the right longitudinal beam is in contact with the right side wall of the water inlet, and the water-permeable filter hole is a long hole with the length direction along the vertical direction. The whole circular pipe is provided with a balance hole above the discharge channel.

2. The canal algae screw type lifting type blocking device according to claim 1, characterized in that: The power transmission mechanism comprises a motor and a plurality of housings, one housing is arranged on the upper end of each whole circular pipe, the main shaft of the motor is coaxially connected with a driving shaft, the driving shaft is arranged horizontally along the left and right directions, the driving shaft extends into and passes through all the housings, the driving shaft is provided with a worm segment in the housing, an output shaft coaxial with the transmission shaft is rotatably arranged in the housing, a worm wheel is mounted on the output shaft, the worm wheel is in meshing connection with the worm, and the lower end of the output shaft is coaxially connected with the upper end of the transmission shaft.

3. The canal algae screw type lifting type blocking device according to claim 1, characterized in that: A plurality of through holes are uniformly arranged on the spiral blade.

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