Sewage treatment equipment with sand filtering mechanism and method

Abstract

The invention discloses sewage treatment equipment with a sand filtering mechanism and a method, and relates to the technical field of sewage treatment.The sewage treatment equipment comprises a filter box, a V-shaped filter plate is fixed between the inner walls of the filter box, a transverse plate is fixed to one side of the filter box, and an alternate sand vibrating mechanism is arranged at the top of the transverse plate; the alternate sand vibrating mechanism is used for vibrating the V-shaped filter plate, so that sand grains retained on the V-shaped filter plate slide down; the alternate sand vibrating mechanism comprises a vertical plate fixed to the top of the transverse plate. According to the sewage treatment equipment with the sand filtering mechanism and the sewage treatment method, through the arrangement of the alternate sand vibration mechanism and the connecting rod driving assembly, the two sides of the top of the V-shaped filter plate are alternately knocked and vibrated by a vibration rod, and sand grains detained and adhered on the V-shaped filter plate are vibrated off and slide to the sand storage tank, so that the situation that the sand grains are accumulated on the V-shaped filter plate to influence the sewage filtering efficiency is avoided; and the sand grains which are vibrated and fall into the sand storage tank are convenient to count, collect and remove.

Description

TECHNICAL FIELD

[0001] The present application relates to the sewage treatment technical field, specifically to a sewage treatment equipment with sand filtering mechanism and method. BACKGROUND

[0002] In the sewage treatment process, if the sand in the sewage is not removed in time, it will cause adverse effects on the subsequent treatment equipment and process, such as equipment wear, pipeline blockage, and reduced treatment efficiency.

[0003] The existing sewage treatment equipment has the following deficiencies when filtering sand:

[0004] (1) The sand during filtration is prone to stick and adhere to the filter plate, which not only affects the filtration efficiency of the sewage, but also makes it inconvenient to collect and remove the sand uniformly;

[0005] (2) When the sewage flows through the filter plate from the water inlet, the flow state of the sewage on the surface of the filter plate is relatively single, which is easy to form a fixed flow path, resulting in uneven contact between the sewage and the filter screen, and the sand is prone to accumulate at certain places of the filter plate;

[0006] (3) In the existing sewage treatment process, a coagulant is usually added to make the suspended particles in the sewage coagulate to form larger flocs, but when the coagulant is added for purification treatment of the sewage, the traditional mixing device adopts a one-way circulation structure, the action trajectory is fixed, which is easy to form a stable flow layer in the action area of the sewage, making it difficult for the coagulant to quickly and uniformly diffuse into the sewage;

[0007] To solve the above problems, we propose a sewage treatment equipment with sand filtering mechanism and method. SUMMARY

[0008] In view of the deficiencies of the prior art, the present application provides a sewage treatment equipment with sand filtering mechanism and method, which solves the problems raised in the background art.

[0009] To achieve the above purpose, the present application realizes the following technical scheme: a sewage treatment equipment with sand filtering mechanism, comprising a filter box, a V-shaped filter plate is fixed between the inner walls of the filter box, a horizontal plate is fixed on one side of the filter box, an alternating sand vibrating mechanism is arranged on the top of the horizontal plate, the alternating sand vibrating mechanism is used for vibrating the V-shaped filter plate, so that the sand particles accumulated on the V-shaped filter plate slide down;

[0010] The alternating sand vibrating mechanism includes a vertical plate fixed on the top of the horizontal plate, a side plate fixed to one side of the vertical plate, a lifting rod 1 and a lifting rod 2 being slidably connected to the inner surface of the side plate, an L-shaped plate being fixed to the top of the lifting rod 1 and the lifting rod 2, a vibrating rod being fixed to the bottom of the L-shaped plate, and a connecting rod driving assembly being provided on the vertical plate, which drives the lifting rod 1 and the lifting rod 2 to lift and lower alternately.

[0011] Preferably, the connecting rod driving assembly includes a motor fixed on one side of the vertical plate, a rotating arm is fixed to the output end of the motor, and the rotating arm is rotatably connected to the connecting rod 1 through a pin shaft, a connecting column is fixed to one side of the vertical plate, one end of the connecting column is rotatably connected to a rocker arm, one end of the rocker arm is rotatably connected to one end of the connecting rod 1 through a pin shaft, one end of the connecting rod 1 is also rotatably connected to the connecting rod 2 through a pin shaft, one end of the connecting rod 2 is rotatably connected to the bottom end of the lifting rod 2 through a pin shaft, the other end of the rocker arm is rotatably connected to the connecting rod 3 through a pin shaft, and one end of the connecting rod 3 is rotatably connected to the bottom end of the lifting rod 1.

[0012] Preferably, a water flow regulating component is provided on the inner wall of the filter box, and the water flow regulating component is used to redirect the introduced sewage at multiple angles so that the sewage flows evenly on the V-shaped filter plate for sand filtering. The water flow regulating component includes a fixing seat fixed on one side of the inner wall of the filter box, a slide rail is fixed on one side of the fixing seat, a T-shaped seat is fixed on the vibration rod, and a connecting plate is fixed on one side of the T-shaped seat.

[0013] Preferably, a curved groove is penetrated through one side of the connecting plate, and a swing plate is rotatably connected to one side of the fixing seat through a rotating shaft. A boss is fixed on one side of the swing plate, and one end of the boss extends to the inside of the curved groove, and the boss slides in the curved groove. A sliding seat is fixed on one side of the connecting plate, and the sliding seat slides vertically on the slide rail. A cross bar is fixed on one side of the swing plate, and a square plate is fixed to one end of the cross bar, and a spoiler is fixed to the bottom of the square plate.

[0014] Preferably, the filter box is also provided with an accelerated mixing component, which is used to quickly mix the sewage and coagulant in the filter box. The accelerated mixing component includes a side rod fixed to the output end of the motor through a coupling, and a runner is fixed to one end of the side rod, and a wave groove is provided on the runner. A folding rod is fixed to one side of the cross plate, and a rod sleeve is fixed to one end of the folding rod, and the inner surface of the rod sleeve is slidably connected to a moving rod.

[0015] Preferably, a moving block is fixed to one side of the moving rod, a bottom column is fixed to the bottom of the moving block, the bottom end of the bottom column extends to the inside of the wave groove, and the bottom column slides in the wave groove, a Z-shaped rod is fixed to one end of the moving rod, a rack is fixed to one end of the Z-shaped rod, two stirring paddles are rotatably connected between opposite sides of the inner wall of the filter box, gears are fixed on the stirring shafts of the two stirring paddles, and both gears are engaged with the rack.

[0016] Preferably, a sand storage trough is provided in the center of the top of the V-shaped filter plate, a plurality of filter holes are provided through the top of the V-shaped filter plate, a cylinder is fixed to one side of the filter box, a push block is fixed to the output end of the cylinder, the push block slides in the sand storage trough, a sand discharge pipe is connected to one side of the filter box, the sand discharge pipe is connected to the sand storage trough, a pipe cover is rotatably connected to the sand discharge pipe by a hinge, both sides of the filter box are connected to a water inlet pipe, one side of the filter box is connected to a drain pipe, a valve is installed on the drain pipe, one side of the filter box is connected to a feed pipe, and the top of the feed pipe is connected to a hopper.

[0017] The present invention also discloses a sewage treatment method with a sand filtering mechanism, comprising the following steps:

[0018] Step 1: Sewage flows into the filter box through two water inlet pipes, and the sand is filtered through the filter holes on the V-shaped filter plate. The motor is started, and the motor drives the rotating arm to rotate. The rotating arm drives the connecting rod 1 to swing, and the connecting rod 1 drives the connecting rod 2 to swing, and the connecting rod 2 drives the lifting rod 2 to move up and down. When the connecting rod 1 swings, it simultaneously drives the swing rod to swing, and the swing rod drives the connecting rod 3 to swing, and the connecting rod 3 drives the lifting rod 1 to move up and down. The lifting rods 1 and 2 move up and down alternately, and at the same time drive the vibrating rod to perform alternating knocking and vibration, so that the sand retained on the V-shaped filter plate slides down and falls into the sand storage trough. The pipe cover is opened, and the cylinder is started. The cylinder drives the push block to move, and the sand in the sand storage trough is pushed out of the sand discharge pipe.

[0019] Step 2: When the vibrating rod moves up and down, it drives the T-shaped seat up and down synchronously, causing the convex column to slide in the curved groove, and then the convex column drives the swing plate to swing around the rotating shaft, and then the swing plate swings the spoiler to swing. At this time, the sewage flowing out of the water inlet pipe is redirected by the swing spoiler, and the sewage flows evenly on the V-shaped filter plate, achieving the purpose of evenly filtering the sand particles;

[0020] Step 3: Add the coagulant into the hopper, and the coagulant flows into the filter box and mixes with the filtered sewage. When the motor rotates, it drives the impeller to rotate synchronously, and the impeller drives the wave trough to rotate synchronously, and then the impeller drives the bottom column to move back and forth horizontally, and then the bottom column drives the moving block and the moving rod to move back and forth horizontally, and then the moving rod drives the Z-rod and the rack to move back and forth horizontally, and then the rack drives the two gears to rotate forward and reverse intermittently, and then drives the stirring paddle to rotate forward and reverse intermittently, so that the sewage forms turbulence during the forward and reverse stirring process, accelerating the mixing reaction of the coagulant and sewage.

[0021] Beneficial effects

[0022] The present invention provides a sewage treatment device and method with a sand filter mechanism. Compared with the prior art, it has the following advantages:

[0023] (1) By setting up the alternating sand vibrating mechanism and the connecting rod drive assembly, the vibrating rod is used to alternately strike the two sides of the top of the V-shaped filter plate, and the sand particles stuck on the V-shaped filter plate are shaken off and slide into the sand storage tank. This not only avoids the accumulation of sand particles on the V-shaped filter plate and affects the sewage filtration efficiency, but also facilitates the collection and removal of the sand particles in the sand storage tank. By this method of alternatingly striking the vibrating V-shaped filter plate, compared with the double instantaneous load caused by the impact force of the vibrating rods on both sides during synchronous vibration, the alternating vibration uses a "time-sharing force" mode, so that the filter plate only bears the impact force on one side at a time, effectively reducing the diffusion loss of vibration energy to non-essential areas such as the bottom support structure, and reducing the risk of deformation, cracking and loosening of the V-shaped filter plate due to excessive impact.

[0024] (2) By setting up the water flow regulating component and utilizing the swing of the spoiler, the water flow is redirected irregularly to avoid the sewage forming a fixed flow path on the V-shaped filter plate. After being guided by the spoiler, the water flow can cover the surface of the V-shaped filter plate more evenly, ensuring that all areas of the V-shaped filter plate can fully participate in the filtration, reducing the phenomenon of sand accumulation, and significantly improving the overall sand filtering effect.

[0025] (3) By accelerating the setting of the mixing component, using the reciprocating movement of the rack and coordinating with the two gears, the two stirring paddles are driven to rotate forward and backward, thereby forming turbulence inside the sewage. This can break the mixing dead corners that are prone to occur in traditional one-way stirring, allowing the coagulant to diffuse quickly and evenly to all areas of the sewage, avoiding the problem of local coagulant concentration being too high or too low, ensuring that the suspended particles in the sewage fully contact and react with the coagulant, significantly improving the thoroughness and stability of the coagulation reaction, and enhancing the removal effect of pollutants in the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The external structure of the present invention is three-dimensional Figure 1 ;

[0027] Figure 2 The external structure of the present invention is three-dimensional Figure 2 ;

[0028] Figure 3 This is a three-dimensional diagram of the internal structure of the filter box of the present invention;

[0029] Figure 4 This is a diagram showing the linkage state of the alternating sand vibrating mechanism, the connecting rod driving assembly, the water flow regulating assembly and the accelerated mixing assembly of the present invention;

[0030] Figure 5 A perspective view of the alternating sand vibrating mechanism and the connecting rod drive assembly of the present invention;

[0031] Figure 6 An exploded view of the water flow regulating assembly of the present invention;

[0032] Figure 7 A three-dimensional diagram of the accelerated mixing component of the present invention;

[0033] Figure 8 It is a three-dimensional diagram of the local structure of the accelerated mixing component of the present invention.

[0034] In the figure: 1. filter box; 2. V-shaped filter plate; 3. horizontal plate; 4. alternating sand vibrating mechanism; 5. connecting rod drive assembly; 6. water flow regulating assembly; 7. accelerated mixing assembly; 8. sand storage tank; 9. filter hole; 10. cylinder; 11. push block; 12. sand discharge pipe; 13. pipe cover; 14. water inlet pipe; 15. drain pipe; 16. valve; 17. feed pipe; 18. hopper; 41. vertical plate; 42. side plate; 43. lifting rod 1; 44. lifting rod 2; 45. L-shaped plate; 46. vibrating rod; 51. motor; 52. rotating arm; 53. connecting rod Rod one; 54, connecting column; 55, rocker arm; 56, connecting rod two; 57, connecting rod three; 61, fixed seat; 62, slide rail; 63, T-shaped seat; 64, connecting plate; 65, curved groove; 66, rocker plate; 67, boss; 68, slide seat; 69, crossbar; 610, square plate; 611, spoiler; 71, side rod; 72, runner; 73, wave groove; 74, folding rod; 75, rod sleeve; 76, moving rod; 77, moving block; 78, bottom column; 79, Z-shaped rod; 710, rack; 711, stirring paddle; 712, gear. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] The present invention provides three technical solutions, including the following embodiments:

[0037] Example 1

[0038] See also Figure 1-Figure 5 A sewage treatment device with a sand filter mechanism includes a filter box 1. The top of the filter box 1 is an open design. A V-shaped filter plate 2 is fixed between the inner walls of the filter box 1. A sand storage trough 8 is opened in the center of the top of the V-shaped filter plate 2. The sand storage trough 8 is used to collect sand particles vibrated from the V-shaped filter plate 2. A plurality of filter holes 9 are opened on the top of the V-shaped filter plate 2. The filter holes 9 are used to filter sand particles and impurities in the sewage. A cylinder 10 is fixed on one side of the filter box 1. The cylinder 10 is opened from the outside. The filter box 1 is controlled by a switch and is electrically connected to an external power supply. A push block 11 is fixed to the output end of the cylinder 10. The push block 11 slides in the sand storage tank 8. After the cylinder 10 is started, the push block 11 is driven to push the sand in the sand storage tank 8, and finally the sand in the sand storage tank 8 is pushed out of the sand discharge pipe 12. One side of the filter box 1 is connected to a sand discharge pipe 12. The sand discharge pipe 12 is used to discharge sand. The sand discharge pipe 12 is connected to the sand storage tank 8. A pipe cover 13 is rotatably connected to the sand discharge pipe 12 by a hinge. The filter box 1 is connected to the drain pipe 15 on one side, and the valve 16 is installed on the drain pipe 15. The valve 16 is specifically an electric butterfly valve. After the valve 16 is opened, the filtered sewage can be discharged through the drain pipe 15. One side of the filter box 1 is connected to the feed pipe 17. The top of the feed pipe 17 is connected to the hopper 18. Coagulant can be added to the hopper 18 and then flow into the filter box 1 through the feed pipe 17 to mix with the filtered sewage, thereby condensing the suspended particles in the sewage to form larger flocs, thereby purifying the sewage. A horizontal plate 3 is fixed on one side of the filter box 1, and an alternating sand vibrating mechanism 4 is provided on the top of the horizontal plate 3. The alternating sand vibrating mechanism 4 is used to vibrate the V-shaped filter plate 2 to make the sand particles retained on the V-shaped filter plate 2 slide down;

[0039] The alternating sand vibrating mechanism 4 includes a vertical plate 41 fixed to the top of the horizontal plate 3, and a side plate 42 is fixed to one side of the vertical plate 41. The inner surface of the side plate 42 is slidably connected with a lifting rod 1 43 and a lifting rod 2 44. The lifting rod 1 43 and the lifting rod 2 44 can be alternately lifted and lowered in the vertical direction. The top of the lifting rod 1 43 and the lifting rod 2 44 are fixed with an L-shaped plate 45, and the bottom of the L-shaped plate 45 is fixed with a vibrating rod 46. The vibrating rod 46 is made of hard metal material. When the vibrating rod 46 moves downward and strikes the V-shaped filter plate 2, the sand particles retained, adhered and accumulated on the V-shaped filter plate 2 can be vibrated into the sand storage trough 8. A connecting rod driving assembly 5 is provided on the vertical plate 41, and the connecting rod driving assembly 5 drives the lifting rod 1 43 and the lifting rod 2 44 to lift and lower alternately.

[0040] The connecting rod drive assembly 5 includes a motor 51 fixed to one side of the vertical plate 41. The motor 51 is controlled by an external switch and is electrically connected to an external power supply. A rotating arm 52 is fixed to the output end of the motor 51. The rotating arm 52 is rotatably connected to a connecting rod 1 53 through a pin shaft. A connecting column 54 is fixed to one side of the vertical plate 41. One end of the connecting column 54 is rotatably connected to a rocker rod 55. The rocker rod 55 can rotate and swing around the connecting column 54. One end of the rocker rod 55 is rotatably connected to one end of the connecting rod 1 53 through a pin shaft. One end of the connecting rod 1 53 is also rotatably connected to a connecting rod 2 56 through a pin shaft. One end of the connecting rod 2 56 is rotatably connected to the bottom end of the lifting rod 2 44 through a pin shaft. The other end of the rocker rod 55 is rotatably connected to a connecting rod 3 57 through a pin shaft. One end of the connecting rod 3 57 is rotatably connected to the bottom end of the lifting rod 1 43.

[0041] By setting up the alternating sand vibration mechanism 4 and the connecting rod drive assembly 5, the vibration rod 46 is used to alternately knock on the two sides of the top of the V-shaped filter plate 2, and the sand particles retained and adhered on the V-shaped filter plate 2 are shaken off and slide into the sand storage trough 8, which not only avoids the accumulation of sand particles on the V-shaped filter plate 2 and affects the sewage filtration efficiency, but also makes it convenient to collect and remove the sand particles in the sand storage trough 8. By this method of alternatingly knocking and vibrating the V-shaped filter plate 2, compared with the double instantaneous load caused by the simultaneous impact force of the vibration rods 46 on both sides during synchronous vibration, the alternating vibration uses a "time-sharing force" mode, so that the filter plate only bears a single-sided impact force each time, effectively reducing the diffusion loss of vibration energy to non-essential areas such as the bottom support structure, and reducing the risk of deformation, cracking and loosening of the V-shaped filter plate 2 due to excessive impact.

[0042] Example 2

[0043] Based on Example 1, see Figure 4 、 Figure 6 、 Figure 7 and Figure 8 As shown, a water flow regulating assembly 6 is provided on the inner wall of the filter box 1. The water flow regulating assembly 6 is used to redirect the introduced sewage at multiple angles so that the sewage flows evenly on the V-shaped filter plate 2 for sand filtering. The water flow regulating assembly 6 includes a fixing seat 61 fixed to one side of the inner wall of the filter box 1, a slide rail 62 is fixed to one side of the fixing seat 61, a T-shaped seat 63 is fixed on the vibration rod 46, and a connecting plate 64 is fixed to one side of the T-shaped seat 63.

[0044] A curved groove 65 is formed on one side of the connecting plate 64. The curvature of the curved groove 65 determines the swing amplitude of the swing plate 66. A swing plate 66 is connected to one side of the fixed seat 61 by rotating the shaft. A boss 67 is fixed on one side of the swing plate 66. One end of the boss 67 extends to the inside of the curved groove 65, and the boss 67 slides in the curved groove 65. A slide 68 is fixed on one side of the connecting plate 64. The slide 68 slides vertically on the slide rail 62. The setting of the slide 68 and the slide rail 62 controls the movement direction of the connecting plate 64. The swing plate 66 is limited in position to ensure that the connecting plate 64 moves only in the vertical direction. A cross bar 69 is fixed to one side of the swing plate 66, and a square plate 610 is fixed to one end of the cross bar 69. A spoiler 611 is fixed to the bottom of the square plate 610. The spoiler 611 is close to the outlet of the water inlet pipe 14. When sewage is discharged into the water inlet pipe 14, the sewage impacts the spoiler 611, and the spoiler 611 swings to disperse the sewage onto the V-shaped filter plate 2, forming multiple flow paths, so that the sewage is in uniform contact with the V-shaped filter plate 2.

[0045] By setting the water flow regulating component 6 and utilizing the swing of the spoiler 611, the water flow is irregularly redirected to prevent the sewage from forming a fixed flow path on the V-shaped filter plate 2. After being guided by the spoiler, the water flow can more evenly cover the surface of the V-shaped filter plate 2, ensuring that all areas of the V-shaped filter plate 2 can fully participate in the filtration, reducing the accumulation of sand particles, and significantly improving the overall sand filtering effect.

[0046] The filter box 1 is also provided with an accelerated mixing component 7, which is used to quickly mix the sewage and coagulant in the filter box 1. The accelerated mixing component 7 includes a side rod 71 fixed to the output end of the motor 51 through a coupling, and a runner 72 is fixed at one end of the side rod 71. A wave groove 73 is provided on the runner 72. A folding rod 74 is fixed to one side of the cross plate 3, and a rod sleeve 75 is fixed to one end of the folding rod 74. The inner surface of the rod sleeve 75 is slidably connected to a moving rod 76.

[0047] A moving block 77 is fixed to one side of the moving rod 76, and a bottom column 78 is fixed to the bottom of the moving block 77. The bottom end of the bottom column 78 extends to the inside of the wave groove 73, and the bottom column 78 slides in the wave groove 73. When the wheel 72 rotates, it drives the wave groove 73 to rotate synchronously, and then drives the bottom column 78 to move back and forth while sliding in the wave groove 73. A Z-shaped rod 79 is fixed to one end of the moving rod 76, and a rack 710 is fixed to one end of the Z-shaped rod 79. Two stirring paddles 711 are rotatably connected between the opposite sides of the inner wall of the filter box 1. Gears 712 are fixed on the stirring shafts of the two stirring paddles 711. The two gears 712 are engaged with the rack 710. When the rack 710 reciprocates in the horizontal direction, it can drive the two gears 712 to rotate forward and reverse.

[0048] By accelerating the setting of the mixing component 7, utilizing the reciprocating movement of the rack 710, in conjunction with the two gears 712, the two stirring paddles 711 are driven to rotate forward and backward, thereby forming turbulence inside the sewage. This can break the mixing dead corners that are prone to occur in traditional one-way stirring, and allow the coagulant to diffuse quickly and evenly to all areas of the sewage, avoiding the problem of local coagulant concentration being too high or too low, ensuring that the suspended particles in the sewage are fully in contact and react with the coagulant, significantly improving the thoroughness and stability of the coagulation reaction, and enhancing the removal effect of pollutants in the sewage.

[0049] Example 3

[0050] Based on Example 2, see Figures 1-8 As shown, the present invention also discloses a sewage treatment method with a sand filtering mechanism, comprising the following steps:

[0051] Step 1. Sewage flows into the filter box 1 through the two water inlet pipes 14, and the sand is filtered through the filter holes 9 on the V-shaped filter plate 2. The motor 51 is started, and the motor 51 drives the rotating arm 52 to rotate. The rotating arm 52 drives the connecting rod 1 53 to swing. The connecting rod 1 53 drives the connecting rod 2 56 to swing. The connecting rod 2 56 drives the lifting rod 2 44 to move up and down. When the connecting rod 1 swings, it simultaneously drives the swing rod 55 to swing. The swing rod 55 drives the connecting rod 3 57 to swing. The connecting rod 3 57 drives the lifting rod 1 43 to move up and down. The lifting rod 1 43 and the lifting rod 2 44 move up and down alternately. At the same time, the vibration rod 46 is driven to perform alternating knocking and vibration, so that the sand retained on the V-shaped filter plate 2 slides down and falls into the sand storage trough 8. The pipe cover 13 is opened and the cylinder 10 is started. The cylinder 10 drives the push block 11 to move, and the sand in the sand storage trough 8 is pushed out of the sand discharge pipe 12.

[0052] Step 2: When the vibrating rod 46 moves up and down, it simultaneously drives the T-shaped seat 63 to move up and down, thereby causing the boss 67 to slide in the curved groove 65, and then the boss 67 drives the swing plate 66 to swing around the rotating axis, and then the swing plate 66 swings the spoiler 611 to swing. At this time, the sewage flowing out of the water inlet pipe 14 is redirected by the spoiler 611, and the sewage flows evenly on the V-shaped filter plate 2, achieving the purpose of evenly filtering the sand particles;

[0053] Step 3: Add the coagulant into the hopper 18, and the coagulant flows into the filter box 1 and mixes with the filtered sewage. When the motor 51 rotates, it synchronously drives the impeller 72 to rotate, and the impeller 72 drives the wave trough 73 to rotate synchronously, and then the impeller 72 drives the bottom column 78 to reciprocate horizontally, and then the bottom column 78 drives the moving block 77 and the moving rod 76 to reciprocate horizontally, and then the moving rod 76 drives the Z-shaped rod 79 and the rack 710 to reciprocate horizontally, and then the rack 710 drives the two gears 712 to rotate forward and reverse intermittently, and then drives the stirring paddle 711 to rotate forward and reverse intermittently, so that the sewage forms turbulence during the forward and reverse stirring process, accelerating the mixing reaction of the coagulant and sewage.

[0054] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0055] The above embodiments of the invention are described in detail, but the contents are only preferred embodiments of the invention and should not be considered to limit the scope of the invention. All equivalent changes and improvements made within the scope of the invention should still fall within the scope of the invention.

Claims

1. A sewage treatment device with a sand filter mechanism, comprising a filter box (1), characterized in that: A V-shaped filter plate (2) is fixed between the inner walls of the filter box (1), a horizontal plate (3) is fixed on one side of the filter box (1), and an alternating sand vibrating mechanism (4) is provided on the top of the horizontal plate (3), and the alternating sand vibrating mechanism (4) is used to vibrate the V-shaped filter plate (2) to make the sand particles retained on the V-shaped filter plate (2) slide down; The alternating sand vibrating mechanism (4) comprises a vertical plate (41) fixed on the top of the horizontal plate (3), a side plate (42) is fixed on one side of the vertical plate (41), a lifting rod 1 (43) and a lifting rod 2 (44) are slidably connected to the inner surface of the side plate (42), an L-shaped plate (45) is fixed to the top of each of the lifting rod 1 (43) and the lifting rod 2 (44), a vibrating rod (46) is fixed to the bottom of the L-shaped plate (45), and a connecting rod driving assembly (5) is provided on the vertical plate (41), and the connecting rod driving assembly (5) drives the lifting rod 1 (43) and the lifting rod 2 (44) to perform alternating lifting and lowering.

2. The sewage treatment equipment with a sand filter mechanism according to claim 1, characterized in that: The connecting rod drive assembly (5) includes a motor (51) fixed to one side of the vertical plate (41), a rotating arm (52) is fixed to the output end of the motor (51), and the rotating arm (52) is rotatably connected to the connecting rod 1 (53) through a pin shaft. A connecting column (54) is fixed to one side of the vertical plate (41), and one end of the connecting column (54) is rotatably connected to a rocker rod (55), one end of the rocker rod (55) is rotatably connected to one end of the connecting rod 1 (53) through a pin shaft, and one end of the connecting rod 1 (53) is also rotatably connected to the connecting rod 2 (56) through a pin shaft, and one end of the connecting rod 2 (56) is rotatably connected to the bottom end of the lifting rod 2 (44) through a pin shaft, and the other end of the rocker rod (55) is rotatably connected to the connecting rod 3 (57) through a pin shaft, and one end of the connecting rod 3 (57) is rotatably connected to the bottom end of the lifting rod 1 (43).

3. The sewage treatment equipment with a sand filter mechanism according to claim 1, characterized in that: A water flow regulating assembly (6) is provided on the inner wall of the filter box (1). The water flow regulating assembly (6) is used to redirect the introduced sewage at multiple angles so that the sewage flows evenly on the V-shaped filter plate (2) for sand filtering. The water flow regulating assembly (6) comprises a fixing seat (61) fixed to one side of the inner wall of the filter box (1), a slide rail (62) is fixed to one side of the fixing seat (61), a T-shaped seat (63) is fixed to the vibration rod (46), and a connecting plate (64) is fixed to one side of the T-shaped seat (63).

4. The sewage treatment equipment with a sand filter mechanism according to claim 3, characterized in that: A curved groove (65) is formed through one side of the connecting plate (64), and a swing plate (66) is connected to one side of the fixing seat (61) by rotating through a rotating shaft. A boss (67) is fixed to one side of the swing plate (66), and one end of the boss (67) extends into the interior of the curved groove (65), and the boss (67) slides in the curved groove (65). A slide seat (68) is fixed to one side of the connecting plate (64), and the slide seat (68) slides vertically on the slide rail (62). A cross bar (69) is fixed to one side of the swing plate (66), and a square plate (610) is fixed to one end of the cross bar (69), and a spoiler (611) is fixed to the bottom of the square plate (610).

5. The sewage treatment equipment with a sand filter mechanism according to claim 2, characterized in that: The filter box (1) is further provided with an accelerated mixing component (7), which is used to quickly mix the sewage and coagulant in the filter box (1). The accelerated mixing component (7) includes a side rod (71) fixed to the output end of the motor (51) through a coupling, a rotating wheel (72) is fixed to one end of the side rod (71), and a wave groove (73) is provided on the rotating wheel (72). A folding rod (74) is fixed to one side of the horizontal plate (3), and a rod sleeve (75) is fixed to one end of the folding rod (74), and a moving rod (76) is slidably connected to the inner surface of the rod sleeve (75).

6. The sewage treatment equipment with a sand filter mechanism according to claim 5, characterized in that: A moving block (77) is fixed to one side of the moving rod (76), a bottom column (78) is fixed to the bottom of the moving block (77), the bottom end of the bottom column (78) extends to the inside of the wave groove (73), and the bottom column (78) slides in the wave groove (73), a Z-shaped rod (79) is fixed to one end of the moving rod (76), a rack (710) is fixed to one end of the Z-shaped rod (79), two stirring paddles (711) are rotatably connected between opposite sides of the inner wall of the filter box (1), and gears (712) are fixed to the stirring shafts of the two stirring paddles (711), and the two gears (712) are meshed with the rack (710).

7. The sewage treatment equipment with a sand filter mechanism according to claim 1, characterized in that: A sand storage trough (8) is provided at the center of the top of the V-shaped filter plate (2), and a plurality of filter holes (9) are provided through the top of the V-shaped filter plate (2). A cylinder (10) is fixed to one side of the filter box (1), and a push block (11) is fixed to the output end of the cylinder (10), and the push block (11) slides in the sand storage trough (8). A sand discharge pipe (12) is connected to one side of the filter box (1), and the sand discharge pipe (12) is connected to the sand storage trough (8). A pipe cover (13) is connected to the sand discharge pipe (12) by a hinge. Both sides of the filter box (1) are connected to a water inlet pipe (14). One side of the filter box (1) is connected to a drain pipe (15), and a valve (16) is installed on the drain pipe (15). One side of the filter box (1) is connected to a feed pipe (17), and the top end of the feed pipe (17) is connected to a hopper (18).

8. A method for treating sewage using a sewage treatment device with a sand filter mechanism according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Sewage flows into the filter box (1) through two water inlet pipes (14), and sand is filtered through the filter holes (9) on the V-shaped filter plate (2). The motor (51) is started, and the motor (51) drives the rotating arm (52) to rotate. The rotating arm (52) drives the connecting rod 1 (53) to swing. The connecting rod 1 (53) drives the connecting rod 2 (56) to swing. The connecting rod 2 (56) drives the lifting rod 2 (44) to move up and down. When the connecting rod 1 swings, it drives the swing rod (55) to swing synchronously. The swing rod (55) drives The connecting rod 3 (57) swings, and the connecting rod 3 (57) drives the lifting rod 1 (43) to move up and down, and the lifting rod 1 (43) and the lifting rod 2 (44) move up and down alternately, and at the same time drive the vibration rod (46) to perform alternate knocking vibration, so that the sand particles retained on the V-shaped filter plate (2) slide down and fall into the sand storage trough (8), open the pipe cover (13), start the cylinder (10), and the cylinder (10) drives the push block (11) to move, and push the sand particles in the sand storage trough (8) out of the sand discharge pipe (12); Step 2: When the vibrating rod (46) moves up and down, it synchronously drives the T-shaped seat (63) to move up and down, thereby causing the boss (67) to slide in the curved groove (65), and then the boss (67) drives the swing plate (66) to swing around the rotating shaft, and then the swing plate (66) swings the spoiler (611) to swing, and at this time, the sewage flowing out of the water inlet pipe (14) is redirected by the spoiler (611) and flows evenly on the V-shaped filter plate (2), thereby achieving the purpose of evenly filtering the sand particles; Step 3: Add the coagulant into the hopper (18), and the coagulant flows into the filter box (1) and mixes with the filtered sewage. When the motor (51) rotates, it synchronously drives the impeller (72) to rotate, and the impeller (72) drives the wave trough (73) to rotate synchronously, and then the impeller (72) drives the bottom column (78) to move back and forth in the horizontal direction, and then the bottom column (78) drives the moving block (77) and the moving rod (76) to move back and forth in the horizontal direction, and then the moving rod (76) drives the Z-shaped rod (79) and the rack (710) to move back and forth in the horizontal direction, and then the rack (710) drives the two gears (712) to rotate intermittently in forward and reverse directions, and then drives the stirring paddle (711) to rotate intermittently in forward and reverse directions, so that the sewage forms turbulence during the forward and reverse stirring process, accelerating the mixing reaction of the coagulant and the sewage.

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