Aeration sand settling sewage treatment device with salvage function

Abstract

The present invention discloses an aerated sand settling sewage treatment device with a salvaging function, and specifically relates to sewage treatment device technology, including a sand settling block, a motor is provided at the rear end of the sand settling block, a sewage treatment component is provided at the upper end of the sand settling block, a sand collecting box is provided at the front side of the sand settling block, a cleaning component is provided at the upper end of the sewage treatment component, a sewage discharge component is fixed at the front end of the cleaning component, an aerator is fixed at the front end of the sewage treatment component, a semi-cylindrical groove is provided at the upper end of the sand settling block, and a sand suction pump matched with the sand collecting box is fixed at the front end of the sand settling block. The aerated sand settling sewage treatment device with a salvaging function described in the present invention can collect and treat the scum floating on the liquid surface of the sewage in the inner cavity of the sewage tank after aeration through the mutual linkage between the provided cleaning component and the two triangular inclined blocks, so as to avoid incomplete sewage treatment and the accumulation of scum affecting the aeration effect.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment devices, and in particular to an aerated sand settling sewage treatment device with a salvaging function. Background Art

[0002] Sewage often contains a lot of sand and gravel. When treating sewage, aeration and sand settling are required first. Due to the aeration effect, organic particles in the wastewater are often in a suspended state. The sand particles rub against each other and withstand the shear force of aeration. The organic pollutants attached to the sand particles can be removed, which is conducive to obtaining relatively pure sand particles.

[0003] Chinese patent document CN113577848A discloses an aerated grit chamber for sewage treatment, comprising: a chamber body, a sand suction mechanism, a connecting plate, a power assembly, a cleaning brush and an aeration pipe; the chamber body is a strip-shaped cavity with an open top, a water inlet and a water outlet are arranged on the chamber body, and a sand collecting trough is arranged at the bottom of the chamber body; the patent provides an aerated grit chamber for sewage treatment, which can completely suck out the sand inside the chamber body with one sand suction mechanism and is easy to clean;

[0004] When the device is in use, the bottom of the pool is cleaned with a cleaning brush, and the sand deposited on the bottom of the pool is extracted with a sand suction machine. However, when the sewage is aerated, not only sand is produced, but also scum is produced on the surface of the sewage. If the scum is not cleaned, the sewage will not be treated thoroughly, and the treated sewage will contain impurities. The accumulated scum may also affect the aeration effect. Summary of the invention

[0005] The main purpose of the present invention is to provide an aerated grit sewage treatment device with a salvaging function, which can effectively solve the problem of incomplete sewage treatment caused by the inability of the aerated grit device to salvage scum on the sewage surface.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] An aerated sand settling sewage treatment device with a salvaging function comprises a sand settling block, a motor is provided at the rear end of the sand settling block, a sewage treatment component is provided at the upper end of the sand settling block, a sand collecting box is provided at the front side of the sand settling block, a cleaning component is provided at the upper end of the sewage treatment component, a sewage discharge component is fixed at the front end of the cleaning component, an aerator is fixed at the front end of the sewage treatment component, a semi-cylindrical groove is opened at the upper end of the sand settling block, and a sand suction pump matched with the sand collecting box is fixed at the front end of the sand settling block;

[0008] The sewage treatment component includes a sewage tank fixed to the upper end of the sand settling block, a rectangular groove matching the semi-cylindrical groove is opened on the bottom wall of the inner cavity of the sewage tank, two symmetrical triangular blocks are arranged on the bottom wall of the inner cavity of the sewage tank, a reciprocating screw is arranged on the front and rear side walls of the inner cavity of the sewage tank, the rear end of the reciprocating screw is fixedly connected to the output end of the sand settling block, an arc block sliding in the inner cavity of the semi-cylindrical groove is arranged on the outer surface of the reciprocating screw, and push blocks matching the triangular blocks are arranged on the left and right sides of the arc block respectively, an aeration pipe 1 is fixed on the front and rear side walls of the inner cavity of the sewage tank, and an aeration pipe 2 is fixed on the front and rear sides of the outer surface of the aeration pipe 1, and two symmetrical triangular oblique blocks are arranged on the front side of the upper end of the sewage tank.

[0009] Preferably, the cleaning component includes two mounting plates symmetrically fixed to the upper end of the sewage tank and a T-shaped plate fixed to the rear side of the upper end of the sewage tank, and the two mounting plates are provided with movable grooves at the ends close to each other, and the inclination angle of the inclined portion of the movable groove is the same as the inclination angle of the inclined surface of the triangular inclined block, and the two mounting plates are commonly fixed with a cross plate on the front side of the ends close to each other, and two symmetrical screw rods 1 and a connecting rod are commonly provided between the cross plate and the T-shaped plate in the horizontal direction, and the two screw rods 1 are connected to the reciprocating screw by belts, and the outer surfaces of the two screw rods 1 and the connecting rod are commonly provided with a salvage component.

[0010] Preferably, bevel gear 1 and bevel gear 2 are fixed to the front sides of the outer surfaces of the two screw rods, bevel gear 3 meshing with bevel gear 1 on the same side is provided on the front sides of the ends of the two mounting plates close to each other, mounting shafts matching bevel gear 3 on the same side are provided on the ends of the two mounting plates close to each other, and cams are fixed to the sides of the outer surfaces of the two mounting shafts close to each other.

[0011] Preferably, the salvage component includes a moving block slidably mounted on the outer surface of the connecting rod, groove blocks are fixed at both ends of the moving block, sliding grooves are opened at both ends of the moving block, connecting springs are fixed to the top walls of the inner cavities of the two sliding grooves, and sliding blocks are fixed to the lower ends of the two connecting springs.

[0012] Preferably, a mounting block is fixed to one end of the two sliding blocks away from each other, two columns matching with the slot block are fixed to the upper ends of the two mounting blocks, and a salvage plate is provided at the lower ends of the two mounting blocks, and the front side of the salvage plate is an inclined surface matching with the triangular inclined block on the same side.

[0013] Preferably, a baffle is fixed on one side of the upper ends of the two salvage plates that are close to each other, and a roller that cooperates with the movable groove on the same side is provided on one end of the two mounting blocks that are away from each other.

[0014] Preferably, the sewage discharge component includes a sewage collecting box fixed to the front end of the two mounting plates and the front end of the sewage tank, a trapezoidal inclined block is fixed to the rear side of the bottom wall of the inner cavity of the sewage collecting box, a stop block is fixed to the upper side of the trapezoidal inclined block, and transmission shafts are rotatably installed on the left and right side walls of the inner cavity of the sewage collecting box, and bevel gear four meshing with bevel gear two on the same side are fixed to the outer surfaces of the two transmission shafts.

[0015] Preferably, a sewage box is fixed at both ends of the left and right ends of the sewage collecting box, and two screws are provided on the side walls of the inner cavity of the two sewage boxes close to the block, and the two screws are connected to the transmission shaft on the same side through a belt, and two push rod assemblies are provided at the ends of the two sewage boxes away from each other, and a blocking plate is commonly fixed at the ends of the two push rod assemblies on the same side close to the block, and sewage pushing holes matching the blocking plates on the same side are opened at both ends of the sewage collecting box.

[0016] Preferably, a connecting plate is provided on the second outer surface of the screw rod, a sewage discharge push plate is fixed to the lower end of the connecting plate, and two symmetrical push columns are fixed to one end of the connecting plate close to the blocking plate on the same side.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The cleaning component and the two triangular inclined blocks are linked to each other to collect and treat the scum floating on the liquid surface of the sewage in the sewage tank after aeration, so as to avoid incomplete sewage treatment and the influence of accumulated scum on the aeration effect. The two screws are used to move the salvage component between the two mounting plates, and the two salvage plates and the mounting blocks located below the sewage liquid surface can be used to push the scum to the front side. The cooperation between the moving grooves on the two mounting plates and the rollers on the two mounting blocks can make the mounting block move forward so that the inclined surface of the salvage plate is in close contact with the inclined surface of the triangular inclined block on the same side, and the scum is pushed to the inclined surface of the triangular inclined block. Then, the mounting block continues to move through the inclined portion of the moving groove, so that the inclined surface of the baffle plate is in close contact with the inclined surface of the triangular inclined block and moves forward, pushing the scum to the inner cavity of the sewage collecting box in front of the triangular inclined block, and flowing from the inclined surface of the trapezoidal inclined block to the front side of the inner cavity of the sewage collecting box, so that a large amount of scum is collected.

[0019] 2. This device cooperates with the moving salvage components and the cams installed on the two mounting plates. In the process of the salvage plate inclined surface and the triangular inclined block being separated and moving to the end of the moving groove, the salvage plate will repeatedly rotate and tilt under the action of the cam, so that the scum remaining on the upper end of the salvage plate will also fall into the inner cavity of the dirt collecting box; the mounting shaft driven by the gear and belt drives the cam to rotate, so that the cam surface contacts the three upper ends of the bevel gears on the same side, so that the salvage plate tilts, and when the salvage plate starts to separate from the triangular inclined block, it will be pushed to tilt when it contacts the cam, and the salvage plate will vibrate through the action of the torsion spring and the raised side of the cam. The repeated tilting and vibration will cause the scum remaining on the upper end of the salvage plate to flow into the inner cavity of the dirt collecting box, and then flow to the front side of the bottom wall of the inner cavity of the dirt collecting box along the inclined surface of the block.

[0020] 3. The sewage discharge component of the device can discharge the scum collected in the inner cavity of the sewage collecting box through the sewage discharge port during the movement of the salvage component to the rear side, so as to avoid the accumulation of scum in the inner cavity of the sewage collecting box, causing odor and affecting the salvage efficiency; the two screws drive the connecting plate to move to the blocking plate on the same side, and the sewage discharge push plate connected to the connecting plate is used to push the scum toward the sewage discharge hole on the sewage collecting box, and the blocking plate is pushed by two push columns, so that the scum pushed by the sewage discharge push plate enters the inner cavity of the sewage discharge box and is discharged through the sewage discharge port at the lower end of the sewage discharge box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0023] Figure 3 It is a schematic diagram of the connection structure of the sand settling block of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the sewage treatment component and the sand settling block of the present invention;

[0025] Figure 5 It is a schematic diagram of the operation status of the sewage treatment component and the sand settling block of the present invention;

[0026] Figure 6 It is a schematic diagram of the overall structure of the cleaning component of the present invention;

[0027] Figure 7 It is a schematic diagram of the front structure of the cleaning component of the present invention;

[0028] Figure 8 It is a schematic diagram of the overall structure of the salvage component of the present invention;

[0029] Fig. 9 It is a schematic diagram of the overall structure of the sewage discharge component of the present invention;

[0030] Fig.10 It is a schematic diagram of the cooperation between the inclined surface of the salvage plate and the inclined surface of the triangular inclined block in the operating state of the present invention;

[0031] Fig.11 It is a schematic diagram of the operation state of the salvage plate and the triangular inclined block in cooperation with each other according to the present invention;

[0032] Fig.12 It is a schematic diagram of the coordinated operation state of the cam and the salvage component of the present invention;

[0033] Fig.13 It is a schematic diagram of the operating state of the sewage discharge component of the present invention.

[0034] In the figure: 1. Sand settling block; 10. Semi-cylindrical trough; 11. Sand suction pump; 2. Motor; 3. Sewage treatment component; 30. Sewage tank; 31. Triangular block; 32. Reciprocating screw; 33. Arc block; 34. Push block; 35. Aeration pipe 1; 350. Aeration pipe 2; 36. Triangular oblique block; 4. Sand collection box; 5. Cleaning component; 50. Mounting plate; 501. Moving trough; 51. Horizontal plate; 52. T-shaped plate; 53. Screw 1; 530. Bevel gear 1; 531. Bevel gear 2; 54. Connecting rod; 55. Salvage component; 55 0. Moving block; 551. Connecting spring; 552. Slot block; 553. Sliding block; 554. Mounting block; 555. Column; 556. Salvage plate; 557. Baffle; 56. Bevel gear three; 57. Mounting shaft; 58. Cam; 6. Sewage discharge component; 60. Sewage collecting box; 61. Trapezoidal inclined block; 610. Baffle; 62. Sewage discharge box; 63. Push rod assembly; 64. Blocking plate; 65. Screw two; 66. Transmission shaft; 660. Bevel gear four; 67. Connecting plate; 670. Push column; 68. Sewage discharge push plate; 7. Aerator. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0036] Embodiment 1

[0037] like Figure 1 and Figure 2As shown, an aerated sand settling sewage treatment device with a salvaging function includes a sand settling block 1, the cross-section of the sand settling block 1 is a trapezoid, a motor 2 is provided at the rear end of the sand settling block 1, the motor 2 is a reversible synchronous motor, and can be reversed, the motor 2 is fixed to the rear end of the motor 2 through a fixing plate, and is used to provide power for the device, a sewage treatment component 3 is provided at the upper end of the sand settling block 1, the sewage treatment component 3 is fixed to the upper end of the sand settling block 1, and the interiors thereof are communicated, a sand collecting box 4 is provided on the front side of the sand settling block 1, and the sand collecting box 4 is used to collect sand in the sand settling block 1, a cleaning component 5 is provided at the upper end of the sewage treatment component 3, the cleaning component 5 is fixed to the upper end of the sewage treatment component 3, and cooperates with the components in the sewage treatment component 3 to collect scum on the surface of the sewage, a sewage discharge component 6 is fixed at the front end of the cleaning component 5, and the sewage discharge component 6 is fixed to the front ends of the cleaning component 5 and the sewage treatment component 3 to discharge the collected scum, and an aerator 7 is fixed at the front end of the sewage treatment component 3, and the aerator 7 is an aeration device in the prior art.

[0038] like Figure 3 As shown, a semi-cylindrical groove 10 is opened at the upper end of the sand settling block 1, and the semi-cylindrical groove 10 helps the sand to gather in its inner cavity. A sand suction pump 11 matched with the sand collecting box 4 is fixed at the front end of the sand settling block 1. The input end of the sand collecting box 4 is located at the front side of the inner cavity of the semi-cylindrical groove 10, and the output end of the sand suction pump 11 is located on the upper side of the sand collecting box 4, so that the extracted sand is discharged into the sand collecting box 4.

[0039] Further, if Figure 4 and Figure 5 As shown, the sewage treatment component 3 includes a sewage tank 30 fixed to the upper end of the sand settling block 1. The sewage tank 30 is a box with an open top. The bottom wall of the inner cavity of the sewage tank 30 is provided with a rectangular groove that matches the semi-cylindrical groove 10. The rectangular groove is communicated with the semi-cylindrical groove 10 to facilitate the deposition of sand in the inner cavity of the semi-cylindrical groove 10. The bottom wall of the inner cavity of the sewage tank 30 is provided with two symmetrical triangular blocks 31. The cross-section of the triangular blocks 31 is a right triangle, and the two right-angled sides are respectively in contact with the side wall and the bottom wall of the sewage tank 30, so that the inclined face faces the semi-cylindrical groove 10, which is convenient for the sand to flow to the inner cavity of the semi-cylindrical groove 10.

[0040] Next, a reciprocating screw 32 is provided on the front and rear side walls of the inner cavity of the sewage tank 30. The front end of the reciprocating screw 32 is rotatably connected to the front side wall of the sewage tank 30, and the rear end of the reciprocating screw 32 penetrates the rear side wall of the sewage tank 30 and is rotatably connected to the penetration point. The rear end of the reciprocating screw 32 is fixedly connected to the output end of the sand settling block 1, and a pulley is also fixed to the outer surface of the reciprocating screw 32 exposed on the rear side of the sewage tank 30. An arc block 33 sliding in the inner cavity of the semi-cylindrical groove 10 is provided on the outer surface of the reciprocating screw 32. When the reciprocating screw 32 rotates, the arc block 33 slides on its outer surface. In addition, two sliding rods for the sliding of the arc block 33 are fixed to the inner cavity of the sewage tank 30. Push blocks 34 cooperating with the triangular block 31 are respectively provided on the left and right sides of the arc block 33. The push block 34 slides on the inclined surface of the triangular block 31, and the push block 34 is fixedly connected to the outer surface of the reciprocating screw 32 extending out of the semi-cylindrical groove 10.

[0041] In addition, an aeration pipe 1 35 is fixed to the front and rear side walls of the inner cavity of the sewage tank 30. The aeration pipe 1 35 is located in the middle of the upper side of the arc block 33, so that the sand particles are deposited while removing organic pollutants on the surface of the sand particles, and the scum on the surface of the sewage is gathered to the left and right sides. Aeration pipes 2 350 are fixed to the front and rear sides of the outer surface of the aeration pipe 1 35. The aerator 7 is connected to the aeration pipe 1 35 at the output end. The aeration pipe 1 35 and the aeration pipe 2 350 are connected by an air pipe. The two aeration pipes 2 350 are respectively located at the front and rear sides of the inner cavity of the sewage tank 30, so that the scum on the surface of the sewage will not gather on the front and rear sides. Two symmetrical triangular oblique blocks 36 are fixed to the concave part of the front side of the upper end of the sewage tank 30. The cross-section of the triangular oblique block 36 is a right triangle. The horizontal plane is fixed to the concave part of the front side of the upper end of the sewage tank 30, and the vertical plane is on the front side. The inclined surface of the triangular oblique block 36 is inclined upward from the back to the front, and the scum is pushed out from the inclined surface of the triangular oblique block 36.

[0042] Embodiment 2

[0043] This embodiment further defines the cleaning component 5 and the sewage discharge component 6 on the basis of the first embodiment, so as to discharge the scum on the surface of the sewage in the inner cavity of the sewage tank 30 .

[0044] Specifically, Figure 6 and Figure 7 As shown, the cleaning component 5 includes two mounting plates 50 symmetrically fixed to the upper end of the sewage tank 30 and a T-shaped plate 52 fixed to the rear side of the upper end of the sewage tank 30. The two mounting plates 50 are respectively located on the left and right sides of the upper end of the sewage tank 30. The lower end of the vertical portion of the T-shaped plate 52 is fixed to the middle of the rear side of the upper end of the sewage tank 30. The ends of the two mounting plates 50 close to each other are both provided with a moving groove 501. The rear side of the moving groove 501 is horizontal, and the front side is inclined. The inclination angle of the inclined portion of the moving groove 501 is the same as the inclination angle of the inclined surface of the triangular inclined block 36. The front side of the ends of the two mounting plates 50 close to each other is commonly fixed with a horizontal plate 51.

[0045] Among them, two symmetrical screw rods 53 and a connecting rod 54 are commonly provided between the horizontal direction of the transverse plate 51 and the T-shaped plate 52. The two screw rods 53 penetrate the transverse plate 51 and the T-shaped plate 52 and are rotatably connected with the penetration. The thread directions of the two screw rods 53 are the same. The outer surfaces of the two screw rods 53 exposed at the rear side of the T-shaped plate 52 are fixed with pulleys. The connecting rod 54 is located in the middle between the transverse plate 51 and the T-shaped plate 52. The two screw rods 53 are connected to the reciprocating screw rod 32 through belts. The pulleys between the screw rods 53 and the reciprocating screw rod 32 are connected through belts. The outer surfaces of the two screw rods 53 and the connecting rod 54 are commonly provided with a salvaging component 55. When the two screw rods 53 rotate, the salvaging component 55 slides between the outer surface of the connecting rod 54 and the two mounting plates 50.

[0046] Next, bevel gear one 530 and bevel gear two 531 are fixed to the front sides of the outer surfaces of the two screw rods 53, and bevel gear two 531 is located on the front side of bevel gear one 530. The front sides of the ends of the two mounting plates 50 that are close to each other are provided with bevel gear three 56 that meshes with the bevel gear one 530 on the same side. Bevel gear three 56 is rotatably mounted on the mounting plate 50 through a connecting shaft. Bevel gear three 56 is fixedly connected to the connecting shaft, and the connecting shaft is rotatably connected to the mounting plate 50. A pulley is fixed to the surface of the connecting shaft. The ends of the two mounting plates 50 that are close to each other are provided with mounting shafts 57 that match the bevel gear three 56 on the same side. The mounting shaft 57 is rotatably connected to the mounting plate 50, and a pulley is fixed to the surface of the mounting shaft. The bevel gear three 56 and the mounting shaft 57 are connected by a belt, and a cam 58 is fixed to the side of the outer surfaces of the two mounting shafts 57 that are close to each other.

[0047] Further, if Figure 8 As shown, the salvage component 55 includes a moving block 550 slidably mounted on the outer surface of the connecting rod 54, and groove blocks 552 are fixed at both ends of the moving block 550. The two groove blocks 552 are respectively threadedly connected to the two screw rods 53, and the two groove blocks 552 are respectively slidably connected to the two mounting plates 50. The moving block 550 has sliding grooves at both ends, and the top walls of the two sliding grooves are fixed with connecting springs 551, and the lower ends of the two connecting springs 551 are fixed with sliders 553, and the sliders 553 are slidably mounted in the sliding grooves.

[0048] Next, mounting blocks 554 are fixed at the ends of the two sliders 553 that are away from each other. Two upright posts 555 that match the slot block 552 are fixed at the upper ends of the two mounting blocks 554. The slot block 552 is provided with holes for the upright posts 555 to slide. Salvage plates 556 are provided at the lower ends of the two mounting blocks 554. The salvage plates 556 are rotatably mounted on the front side of the lower ends of the mounting blocks 554 through torsion springs, so as to facilitate the rear rotation to pour down the scum. The front side of the salvage plates 556 is an inclined surface that matches the triangular inclined block 36 on the same side. The inclined surface of the salvage plates 556 and the inclined surface of the triangular inclined block 36 fit tightly when the salvage plates 556 are located at the turning point of the moving slot 501. The inclined surface of the baffle plate 557 is parallel to the inclined surface of the triangular inclined block 36. When the inclined surface of the salvage plates 556 contacts the inclined surface of the triangular inclined block 36, the salvage plates 556 can slide on the inclined surface of the triangular inclined block 36 through the moving slot 501.

[0049] Among them, a baffle 557 is fixed on the side where the upper ends of the two salvage plates 556 are close to each other. The baffle 557 is used to block the scum on the upper end of the salvage plate 556, so that when the salvage plate 556 slides on the inclined surface of the triangular inclined block 36, the scum will not flow into the sewage. The ends of the two mounting blocks 554 that are away from each other are provided with rollers that cooperate with the movable groove 501 on the same side. The rollers are connected to the mounting blocks 554 through connecting columns. The connecting columns penetrate the mounting blocks 554 and rotate with the mounting blocks 554. The other end of the connecting column is fixedly connected to the slider 553.

[0050] Further, if Fig. 9 As shown, the sewage discharge component 6 includes a sewage collecting box 60 fixed to the front ends of the two mounting plates 50 and the front end of the sewage tank 30. The sewage collecting box 60 is a box body with an open rear end and an open upper end, and its rear end is installed in conjunction with the two mounting plates 50. A trapezoidal inclined block 61 is fixed to the rear side of the bottom wall of the inner cavity of the sewage collecting box 60. The trapezoidal inclined block 61 has a slope along the width direction to facilitate the flow of scum to the front side. A stopper 610 is fixed to the upper side of the trapezoidal inclined block 61. The stopper 610 is used in conjunction with the baffle 557 to prevent the scum from flowing out. The left and right side walls of the inner cavity of the sewage collecting box 60 are rotatably installed with a transmission shaft 66. The outer surfaces of the two transmission shafts 66 are fixed with a bevel gear four 660 meshing with the bevel gear two 531 on the same side. The bevel gear two 531 can rotate with the bevel gear four 660, thereby rotating the transmission shaft 66.

[0051] In addition, a sewage box 62 is fixed at both ends of the sewage collecting box 60. The end of the sewage box 62 close to the sewage collecting box 60 is open, and a sewage outlet is provided at the lower end of the sewage box 62. The side walls of the inner cavities of the two sewage boxes 62 close to the block 610 are provided with screw rods 65. The screw rods 65 are rotatably connected to the sewage box 62. The two screw rods 65 are symmetrical to each other, and the thread directions of the surfaces are opposite. The screw rods 65 are connected to the transmission shaft 66 on the same side through a belt. Two ejector rods 63 are provided at the ends of the two sewage boxes 62 away from each other. The push rod assembly 63 includes two sliding columns that penetrate the sewage box 62, and a spring that is sleeved on the surface of the sliding column and fixedly connected to the end surface of the sewage box 62 away from the block 610, so that the sliding column can slide left and right, and can be reset by the spring. The two push rod assemblies 63 on the same side are commonly fixed with a blocking plate 64 at one end close to the block 610. The blocking plate 64 has a hole that slides with the screw rod 2 65. The left and right ends of the sewage box 60 are both provided with a sewage pushing hole that matches the blocking plate 64 on the same side. In a normal state, the blocking plate 64 is located in the sewage pushing hole;

[0052] Next, a connecting plate 67 is provided on the outer surface of the screw rod 65, and the connecting plate 67 is threadedly connected to the screw rod 65. The connecting plate 67 slides on the surface of the screw rod 65, and a sewage discharge push plate 68 is fixed to the lower end of the connecting plate 67. The sewage discharge push plate 68 is located on the front side of the trapezoidal inclined block 61 and is slidably connected to the front side wall of the sewage collecting box 60. When moving, the scum on the front side of the trapezoidal inclined block 61 on the bottom wall of the inner cavity of the sewage collecting box 60 can be pushed. Two symmetrical push columns 670 are fixed to one end of the connecting plate 67 close to the blocking plate 64 on the same side.

[0053] It should be noted that the sand suction pump 11, the motor 2, the aeration pipe 1 35, the aeration pipe 2 350, and the aerator 7 in the present invention are all prior arts, and their installation and control methods are also conventional designs, which will not be elaborated in detail in the present invention.

[0054] Specific implementation of the device: This device is an aerated sand settling sewage treatment device with a salvage function. Specifically, Figure 5 and Fig.10 As shown, sewage is placed in the inner cavity of the sewage tank 30, and aeration is performed in the sewage through the aeration pipe 1 35 and the aeration pipe 2 350 connected to the aerator 7, so that the sand particles rub against each other to remove organic pollutants on the surface of the sand particles, and then the sand particles settle and fall on the inclined surface of the triangular block 31 and the inner cavity of the semi-cylindrical groove 10 at the upper end of the sand settling block 1, and the scum floats on the left and right sides of the sewage surface, and the sewage liquid level is higher than the position of the salvage plate 556;

[0055] The motor 2 rotates, and the reciprocating screw 32 connected to its output end rotates, so that the arc block 33 and the push block 34 connected thereto reciprocate, pushing the sand in the inner cavity of the semi-cylindrical groove 10 and the inclined surfaces of the two triangular blocks 31 to move toward the input end of the sand suction pump 11, so as to reduce the outflow of sewage when the sand is extracted, and the sand suction pump 11 draws the sand into the inner cavity of the sand collecting box 4;

[0056] In the process of discharging the sediment, the two screws 53 connected by the belt of the reciprocating screw 32 also rotate, so that the two slot blocks 552 move the moving block 550 to the front side, and the rollers on the two mounting blocks 554 move in the inner cavity of the moving slot 501 on the two mounting plates 50, so that the salvage space composed of the mounting block 554, the salvage plate 556 and the baffle 557 pushes the scum on both sides of the sewage surface to the front side. When the rollers rotatably installed on the mounting block 554 are located at the end of the inclined part of the moving slot 501 on the same side, as shown in FIG. Fig.10 As shown, the inclined surface of the salvage plate 556 contacts the inclined surface of the triangular inclined block 36, and then the mounting block 554 continues to move forward, and the roller moves toward the inclined portion of the moving groove 501, so that the mounting block 554 gradually moves upward, and the slider 553 moves upward to compress the connecting spring 551. The inclined surface of the salvage plate 556 is still in close contact with the inclined surface of the triangular inclined block 36, pushing the scum to move toward the inclined side on the surface of the triangular inclined block 36;

[0057] Then, if Fig.11 As shown, when the inclined surface of the salvage plate 556 moves to the uppermost side of the inclined surface of the triangular inclined block 36, a large amount of scum is pushed into the inner cavity of the dirt collecting box 60, and slides from the inclined surfaces of the trapezoidal inclined blocks 61 on the left and right sides of the stopper 610 to the front side of the inner cavity of the dirt collecting box 60, and then the mounting block 554 continues to move forward with the salvage plate 556, and the roller also moves forward and upward at the inclined portion of the moving groove 501. In the process that the inclined surface of the salvage plate 556 separates from the triangular inclined block 36 and moves to the end of the moving groove 501, as shown in FIG. Fig.12 As shown, the mounting shaft 57 driven by the gear and the belt drives the cam 58 to rotate, so that the surface of the cam 58 contacts the upper end of the bevel gear 3 56 on the same side, so that the salvage plate 556 tilts. When the salvage plate 556 starts to separate from the triangular inclined block 36, it will be pushed to tilt when it contacts the cam 58, and will vibrate through the action of the torsion spring. Repeated tilting and vibration will cause the residual scum on the upper end of the salvage plate 556 to flow into the inner cavity of the dirt collecting box 60, and then flow to the front side of the bottom wall of the inner cavity of the dirt collecting box 60 along the inclined surface of the stopper 610;

[0058] During the reverse rotation of motor 2, if Fig.13As shown, in the process of making the salvage component 55 move to the rear side with the two bevel gears 1 530, the bevel gears 2 531 on the surface of the two screws 1 53 respectively drive the meshing bevel gears 4 660 to rotate, so that the two transmission shafts 66 respectively drive the screws 2 65 on the same side to rotate. When the screws 2 65 rotate, the connecting plates 67 on the surfaces of the two screws 2 65 move in opposite directions. The connecting plate 67 on the left side moves to the left, and the connecting plate 67 on the right side moves to the right. The connecting plate 67 drives the sewage discharger 66. The push plate 68 moves toward the blocking plate 64 on the same side, pushing the scum and garbage on the front side of the bottom wall of the inner cavity of the sewage collecting box 60 to the inner cavity of the sewage discharge box 62 on the same side. The connecting plate 67 moving toward the blocking plate 64 pushes the blocking plate 64 through two pushing columns 670, so that the scum flows from the pushing hole through the sewage outlet at the lower end of the sewage discharge box 62 and is discharged, thereby avoiding the accumulation of scum in the inner cavity of the sewage collecting box 60 and affecting the efficiency of salvage. In addition, the blocking plate 64 can be reset by the top rod assembly 63 on the sewage discharge box 62 to avoid scum turbulence.

[0059] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An aerated grit wastewater treatment device with a salvaging function, comprising a grit block (1), characterized in that: A motor (2) is provided at the rear end of the sand settling block (1), a sewage treatment component (3) is provided at the upper end of the sand settling block (1), a sand collection box (4) is provided at the front side of the sand settling block (1), a cleaning component (5) is provided at the upper end of the sewage treatment component (3), a sewage discharge component (6) is fixed at the front end of the cleaning component (5), an aerator (7) is fixed at the front end of the sewage treatment component (3), a semi-cylindrical groove (10) is provided at the upper end of the sand settling block (1), and a sand suction pump (11) matched with the sand collection box (4) is fixed at the front end of the sand settling block (1); The sewage treatment component (3) comprises a sewage tank (30) fixed to the upper end of the sand settling block (1), the bottom wall of the inner cavity of the sewage tank (30) is provided with a rectangular groove that matches the semi-cylindrical groove (10), the bottom wall of the inner cavity of the sewage tank (30) is provided with two symmetrical triangular blocks (31), and the front and rear side walls of the inner cavity of the sewage tank (30) are jointly provided with a reciprocating screw (32), the rear end of the reciprocating screw (32) is fixedly connected to the output end of the sand settling block (1), and the reciprocating screw (32) An arc block (33) is provided on the outer surface thereof and slides in the inner cavity of the semi-cylindrical groove (10); push blocks (34) are provided on the left and right sides of the arc block (33) and cooperate with the triangular block (31); an aeration pipe 1 (35) is fixed to the front and rear side walls of the inner cavity of the sewage tank (30); an aeration pipe 2 (350) is fixed to the front and rear sides of the outer surface of the aeration pipe 1 (35); and two symmetrical triangular oblique blocks (36) are provided on the front side of the upper end of the sewage tank (30); The cleaning component (5) comprises two mounting plates (50) symmetrically fixed to the upper end of the sewage tank (30) and a T-shaped plate (52) fixed to the rear side of the upper end of the sewage tank (30); the two mounting plates (50) are provided with a moving groove (501) at one end close to each other; the inclination angle of the inclined portion of the moving groove (501) is the same as the inclination angle of the inclined surface of the triangular inclined block (36); a transverse plate (51) is fixed to the front side of one end close to each other of the two mounting plates (50); two symmetrical screw rods (53) and a connecting rod (54) are provided between the transverse plate (51) and the T-shaped plate (52) in the horizontal direction; the two screw rods (53) are connected to the reciprocating screw rod (32) by a belt; and the outer surfaces of the two screw rods (53) and the connecting rod (54) are provided with a salvaging component (55); A bevel gear 1 (530) and a bevel gear 2 (531) are fixed to the front sides of the outer surfaces of the two screw rods 1 (53); a bevel gear 3 (56) meshing with the bevel gear 1 (530) on the same side is provided on the front sides of the ends of the two mounting plates (50) close to each other; a mounting shaft (57) matching with the bevel gear 3 (56) on the same side is provided on the ends of the two mounting plates (50) close to each other; and a cam (58) is fixed to the sides of the outer surfaces of the two mounting shafts (57) close to each other; The salvaging component (55) comprises a moving block (550) slidably mounted on the outer surface of the connecting rod (54), groove blocks (552) being fixed at both left and right ends of the moving block (550), sliding grooves being provided at both left and right ends of the moving block (550), connecting springs (551) being fixed to the top walls of the inner cavities of the two sliding grooves, and sliding blocks (553) being fixed to the lower ends of the two connecting springs (551); A mounting block (554) is fixed to one end of the two sliding blocks (553) that is away from each other. Two upright posts (555) that match the slot block (552) are fixed to the upper ends of the two mounting blocks (554). A salvage plate (556) is provided at the lower ends of the two mounting blocks (554). The front side of the salvage plate (556) is an inclined surface that matches the triangular inclined block (36) on the same side. A baffle (557) is fixed to the sides of the upper ends of the two salvaging plates (556) that are close to each other, and a roller that matches the movable groove (501) on the same side is provided at the ends of the two mounting blocks (554) that are away from each other. The salvaging plates (556) are rotatably mounted on the front side of the lower ends of the mounting blocks (554) via torsion springs.

2. The aerated sand settling sewage treatment device with salvage function according to claim 1 is characterized by: The sewage discharge component (6) comprises a sewage collecting box (60) fixed to the front ends of the two mounting plates (50) and the front end of the sewage tank (30); a trapezoidal inclined block (61) is fixed to the rear side of the bottom wall of the inner cavity of the sewage collecting box (60); a stopper (610) is fixed to the upper side of the trapezoidal inclined block (61); transmission shafts (66) are rotatably mounted on the left and right side walls of the inner cavity of the sewage collecting box (60); and bevel gears (660) meshing with bevel gears (531) on the same side are fixed to the outer surfaces of the two transmission shafts (66).

3. The aerated sand settling sewage treatment device with salvage function according to claim 2 is characterized by: A sewage box (62) is fixed to both left and right ends of the sewage collecting box (60); a second screw rod (65) is provided on the side wall of the inner cavity of the two sewage boxes (62) near the stopper (610); the second screw rod (65) is connected to the transmission shaft (66) on the same side by a belt; two push rod assemblies (63) are provided at the ends of the two sewage boxes (62) away from each other; a blocking plate (64) is fixed to the ends of the two push rod assemblies (63) on the same side near the stopper (610); and sewage pushing holes that cooperate with the blocking plate (64) on the same side are provided at both left and right ends of the sewage collecting box (60).

4. The aerated sand settling sewage treatment device with salvage function according to claim 3 is characterized by: The outer surface of the second screw rod (65) is provided with a connecting plate (67), the lower end of which is fixed with a sewage discharge push plate (68), and one end of the connecting plate (67) close to the blocking plate (64) on the same side is fixed with two symmetrical push columns (670).

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