Municipal sewage purification device

Abstract

The invention relates to the technical field of municipal sewage purification, in particular to a municipal sewage purification device which comprises a grit chamber and a shell mounted on the grit chamber, the rear side of the bottom of the grit chamber is an inclined plane, the grit chamber is communicated with a liquid inlet pipe, an annular plate is rotatably connected into the shell, and openings for sewage to pass through are formed in the annular plate at intervals. Sewage is discharged into the grit chamber for sedimentation and purification, a flocculating agent is discharged into the grit chamber through a liquid inlet pipe to be mixed with the sewage, the sewage is further purified, settled particles fall into an arc-shaped groove of the grit chamber, then a servo motor is started, an annular plate drives a u-shaped plate and a grid plate to rotate reversely, and the sewage is discharged into the grit chamber through the liquid inlet pipe. The u-shaped plate and the grid plate rotate reversely to salvage particles at the bottom of the sedimentation tank to be separated from the sewage, and the particles are conveyed and collected through the conveyor, so that the sewage is purified, the particles do not need to be manually removed to complete purification, and the sewage purification efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of municipal sewage purification, and in particular to a municipal sewage purification device. Background Art

[0002] In municipal administration, sewage purification is indispensable, which requires purification and sedimentation of sewage so that larger heavy particles such as sand and gravel in the sewage can be precipitated, and then the purified sewage can be discharged to prevent the sewage from polluting the environment by failing to meet the discharge standards.

[0003] At present, after the sewage is purified and precipitated, a large amount of large heavy particles such as sand and gravel will accumulate at the bottom of the grit tank. In order to prevent the large heavy particles such as sand and gravel from affecting the subsequent structures and settings, it is necessary to remove the large heavy particles such as sand and gravel. The removal method is to close the water inlet valve to stop the sewage from entering the grit tank. After all the sewage in the sedimentation tank is discharged, the particles in the grit tank can be removed manually using a removal machine. This method is more troublesome and requires the suspension of the purification and sedimentation of the sewage, which affects the purification efficiency of the sewage.

[0004] Therefore, it is necessary to design a municipal sewage purification device that can salvage and remove precipitated particles during sewage purification and sedimentation, thereby improving the sewage purification efficiency. Summary of the invention

[0005] In order to overcome the disadvantages that the particulate matter in the grit tank can be manually removed by a cleaning machine after the sewage is completely discharged by closing the water inlet valve so as to stop entering the grit tank and the sewage in the grit tank is completely discharged, but this method is rather troublesome and requires the cessation of the purification and sedimentation of the sewage, thus affecting the purification efficiency of the sewage, the present invention provides a municipal sewage purification device which can salvage and remove the precipitated particulate matter when the sewage is purified and precipitated, thereby improving the sewage purification efficiency.

[0006] The present invention is achieved through the following technical approaches: A municipal sewage purification device includes a sand settling tank and a shell installed on the sand settling tank. The rear side of the bottom of the sand settling tank is an inclined surface. The sand settling tank is connected to a liquid inlet pipe. An annular plate is rotatably connected in the shell. The annular plate is spaced apart with openings for sewage to pass through. A gear ring I is fixedly connected to the outer side of the annular plate. A servo motor is installed on the shell. The end of the output shaft of the servo motor is fixedly connected to a spur gear meshing with the gear ring I. The servo motor also includes a U-shaped plate, a grid plate, an L-shaped rod, a guide ring, a trigger plate, a torsion spring and a conveying assembly. The conveying assembly is installed on the shell. The U-shaped plate is fixedly connected to the inner circumference of the annular plate at uniform intervals. The U-shaped plate rotates A grid plate is dynamically connected, and the grid plate and the U-shaped plate form a frame. A torsion spring is connected between the grid plate and the rotating part of the U-shaped plate. An L-shaped rod is fixedly mounted on the shaft end of the grid plate. A guide ring is fixedly connected to the inner wall of the shell along the circumferential direction. The inner wall of the guide ring contacts the end of the L-shaped rod. A trigger plate is fixedly connected to the guide ring. The reversal of the annular plate drives the reversal of the U-shaped plate, and the reversal of the U-shaped plate drives the grid plate to reverse. The U-shaped plate and the grid plate cooperate to salvage the particles at the bottom of the sedimentation tank to the top for removal. The trigger plate controls the swing of the L-shaped rod, so that the grid plate swings out of contact with the particles, and the particles fall onto the conveying assembly to be transported and collected.

[0007] To further explain, the trigger plate is composed of an arc segment and two straight segments, wherein the two straight segments are respectively fixed to the end portions of the guide ring, and the arc segment is connected to the two straight segments.

[0008] As a further explanation, an arc-shaped groove is provided in the middle of the bottom of the grit chamber, which is in reverse contact with the grid plate, so as to collect the purified and precipitated particles.

[0009] To further explain, the conveying assembly includes two mounting plates fixedly connected to the shell, a conveyor is installed between the two mounting plates to drive the particles to move for transportation, a driving motor is installed on one of the mounting plates, an output shaft end of the driving motor is fixedly connected to the end of one of the conveying wheels of the conveyor, and a guide bucket is fixedly connected between the two mounting plates to guide the particles.

[0010] Further description, it also includes a knocking assembly, which includes fixed plates symmetrically fixed in the shell, a rotating shaft rotatably connected between the fixed plates, a knocking rod fixedly mounted on the rotating shaft, which is used to knock and vibrate the annular plate to make the grid plate vibrate, and a transmission assembly is arranged between the annular plate and the rotating shaft to drive the rotating shaft to rotate.

[0011] Further description, adjacent knocking rods are arranged in a staggered manner, and the ends of the knocking rods are made of rubber material.

[0012] To further explain, the transmission assembly includes a driving gear fixedly connected to the end of the rotating shaft, and a gear ring II meshing with the driving gear is fixedly connected to the outer side of the annular plate to drive the driving gear to rotate.

[0013] According to a further description, an observation window is also provided which is symmetrically fixed and penetrated on the shell.

[0014] The present invention has significant improvements in that: 1. The sewage is discharged into the grit chamber for sedimentation and purification, and the flocculant is discharged into the grit chamber through the liquid inlet pipe to mix with the sewage to further purify the sewage. The precipitated particles fall into the arc groove of the grit chamber, and then the servo motor is started to make the annular plate drive the U-shaped plate and the grid plate to reverse. The U-shaped plate and the grid plate reverse to salvage the particles at the bottom of the sedimentation tank and separate them from the sewage, and then transport and collect them through a conveyor to complete the purification of the sewage. There is no need to manually remove the particles to complete the purification, thereby improving the sewage purification efficiency.

[0015] 2. Under the action of the knocking rod, whenever the annular plate drives the U-shaped plate and the grid plate to reverse, the knocking rod rotates to knock and vibrate the annular plate, the annular plate knocks and vibrates the U-shaped plate and the grid plate, and the U-shaped plate and the grid plate vibrate the attached particles, which can prevent the particles from adhering to the grid plate and the U-shaped plate and making them difficult to collect, thereby ensuring that all the particles can be transported and collected.

[0016] 3. Under the action of the observation window, whenever the U-shaped plate and the grid plate salvage the particles, the operator can check the salvage situation of the particles through the observation window, and can take corresponding measures in time according to the removal situation of the particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the grit chamber and the liquid inlet pipe of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the annular plate and the gear ring II of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the U-shaped plate and the grid plate of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the guide ring and the trigger plate of the present invention.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the torsion spring of the present invention.

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the conveying component of the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the striking assembly of the present invention.

[0025] Fig. 9 It is a schematic diagram of the three-dimensional structure of the observation window of the present invention.

[0026] Names of the numbers in the figure: 1. grit chamber, 2. shell, 3. liquid inlet pipe, 4. annular plate, 5. gear ring I, 6. servo motor, 7. spur gear, 8. U-shaped plate, 9. grid plate, 10. L-shaped rod, 11. guide ring, 12. trigger plate, 13. torsion spring, 14. guide bucket, 141. mounting plate, 142. conveyor, 143. drive motor, 15. fixed plate, 151. rotating shaft, 152. knocking rod, 153. drive gear, 154. gear ring II, 16. observation window. DETAILED DESCRIPTION

[0027] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, lateral, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position.

[0028] Example: A municipal sewage purification device, see Figure 1-Figure 7As shown, it includes a grit chamber 1 and a shell 2 installed in the middle of the grit chamber 1. The rear side of the bottom of the grit chamber 1 is an inclined surface. The rear side of the left side of the grit chamber 1 is connected to a liquid inlet pipe 3. An annular plate 4 is rotatably connected between the middle parts of the left and right sides of the shell 2. The annular plate 4 is spaced apart with openings for sewage to pass through. A gear ring Ⅰ5 is fixedly connected to the right side of the outer side of the annular plate 4 along the circumferential direction. A servo motor 6 is installed on the upper right side of the shell 2. A spur gear 7 is fixedly connected to the end of the output shaft of the servo motor 6. The spur gear 7 is meshed with the gear ring Ⅰ5. It also includes a U-shaped plate 8, a grid plate 9, an L-shaped rod 10, a guide ring 11, a trigger plate 12, a torsion spring 13 and a conveying assembly. The conveying assembly is installed on the shell 2. The U-shaped plate 8 is evenly spaced and fixed to the inner circumference of the annular plate 4. The U-shaped plate 8 is rotatably connected with a grid plate 9. The grid plate 9 and the U-shaped plate 8 form a frame. The grid plate 9 and the U-shaped plate 8 are rotated between the rotating parts. Four torsion springs 13 are connected, and an L-shaped rod 10 is fixedly mounted on the right end of the shaft of the grid plate 9. A guide ring 11 is fixedly connected to the right side surface of the shell 2 along the circumferential direction. The inner wall of the guide ring 11 contacts the end of the L-shaped rod 10. A trigger plate 12 is fixedly connected to the top of the guide ring 11. The trigger plate 12 consists of an arc segment and two straight segments, wherein the two straight segments are respectively fixed to the ends of the guide ring 11, and the arc segment is connected to the two straight segments. An arc-shaped groove is provided in the middle of the bottom of the sand settling tank 1 for reverse contact with the grid plate 9 to collect the purified and precipitated particles. Subsequently, the annular plate 4 reverses to drive the U-shaped plate 8 to reverse, and the U-shaped plate 8 reverses to drive the grid plate 9 to reverse. The U-shaped plate 8 cooperates with the grid plate 9 to salvage the particles at the bottom of the sedimentation tank to the top for removal. The L-shaped rod 10 is controlled to swing by the trigger plate 12, so that the grid plate 9 swings out of contact with the particles, and the particles fall onto the conveying assembly to be transported and collected.

[0029] See also Figure 7 As shown, the conveying assembly includes a guide bucket 14, a mounting plate 141, a conveyor 142 and a driving motor 143. Two mounting plates 141 are fixedly connected on the upper right side of the shell 2, and the conveyor 142 is installed between the two mounting plates 141. The conveyor 142 consists of two conveying wheels and a conveyor belt, wherein the conveying wheels are symmetrically connected between the two mounting plates 141, and the conveyor belt is wound between the two conveying wheels. When the conveyor 142 rotates forward, the conveyor 142 can drive the particles to move to the right for transportation. The driving motor 143 is installed on the right side of the front side mounting plate 141, and the output shaft end of the driving motor 143 is fixedly connected to the front end of the conveying wheel on the right side of the conveyor 142. A guide bucket 14 is fixedly connected between the top left sides of the front and rear mounting plates 141, and the guide bucket 14 can guide the particles.

[0030] First, the sewage is continuously discharged into the sedimentation tank from the rear, the sewage passes through the opening of the annular plate 4, and the flocculant is discharged into the sedimentation tank through the liquid inlet pipe 3 to contact the sewage for reaction. The sewage is precipitated and purified in the sedimentation tank. Due to the inclined surface of the sedimentation tank, the precipitated particles are concentrated in the arc-shaped groove of the sedimentation tank. Then the servo motor 6 is started to drive the spur gear 7 to rotate forward, and the forward rotation of the spur gear 7 drives the gear ring Ⅰ5 to reverse, and the reverse rotation of the gear ring Ⅰ5 drives the annular plate 4 to reverse, and the reverse rotation of the annular plate 4 drives the U-shaped plate 8 to reverse, and the reverse rotation of the U-shaped plate 8 drives the grid plate 9 to reverse. When the grid plate 9 and the U-shaped plate 8 reverse to contact the arc-shaped groove of the sedimentation tank, the grid plate 9 and the U-shaped plate 8 cooperate to salvage the particles at the bottom of the sedimentation tank to drive the particles to reverse and break away from the sewage. At the same time, the reverse rotation of the grid plate 9 drives the L-shaped rod 10 to reverse, and the reverse L-shaped rod 10 slides on the inner wall of the guide ring 11 When the L-shaped rod 10 reverses and contacts the trigger plate 12, the trigger plate 12 drives the L-shaped rod 10 to swing downward, and the L-shaped rod 10 drives the grid plate 9 to swing downward, the torsion spring 13 is compressed, the grid plate 9 swings downward and breaks contact with the particles, and the particles fall downward into the guide bucket 14, and the particles in the guide bucket 14 fall onto the conveyor 142, and the drive motor 143 is started to rotate forward to drive the conveyor 142 to rotate forward, and the conveyor 142 rotates forward to drive the particles to move to the right for transportation and collection. As the L-shaped rod 10 continues to reverse and breaks contact with the trigger plate 12, due to the action of the torsion spring 13, the grid plate 9 swings upward and resets, driving the L-shaped rod 10 to swing upward and reset, and this is repeated, and the particles at the bottom of the sand settling tank 1 can be continuously salvaged and removed, so that the sewage is purified, and there is no need to manually remove the particles to complete the purification, thereby improving the sewage purification efficiency. When all the particles at the bottom of the sand settling tank 1 are removed, the drive motor 143 is turned off, the conveyor 142 stops rotating forward, and the servo motor 6 is turned off, the annular plate 4 stops driving the U-shaped plate 8 to reverse, and the U-shaped plate 8 stops driving the grid plate 9 to reverse.

[0031] See also Figure 8As shown, it also includes a striking assembly installed between the shell 2 and the annular plate 4, the striking assembly includes a fixed plate 15, a rotating shaft 151, a striking rod 152 and a transmission assembly, the fixed plate 15 is fixedly connected to the top of the shell 2 symmetrically, the rotating shaft 151 is rotatably connected between the lower parts of the fixed plates 15 on the left and right sides, and four striking rods 152 are fixedly sleeved on the rotating shaft 151, and the adjacent striking rods 152 are staggered, and the ends of the striking rods 152 are made of rubber. When the striking rods 152 rotate and contact with the annular plate 4, the striking rods 152 can be The annular plate 4 is struck and vibrated to cause the grid plate 9 to vibrate. A transmission assembly is arranged between the annular plate 4 and the rotating shaft 151. When the transmission assembly is in operation, the transmission assembly can drive the rotating shaft 151 to rotate; the transmission assembly includes a driving gear 153 and a gear ring II 154. The driving gear 153 is fixedly mounted on the left end of the rotating shaft 151. The gear ring II 154 is circumferentially fixedly connected to the left side of the outer side surface of the annular plate 4. The gear ring II 154 is meshed with the driving gear 153. When the gear ring II 154 rotates, the gear ring II 154 can drive the driving gear 153 to rotate.

[0032] When the annular plate 4 is reversed, the annular plate 4 drives the gear ring II 154 to reverse, and the gear ring II 154 reverses to drive the driving gear 153 to rotate forward, and the driving gear 153 rotates forward to drive the rotating shaft 151 to rotate forward, and the rotating shaft 151 rotates forward to drive the knocking rod 152 to rotate forward, and when the knocking rod 152 rotates forward and contacts the annular plate 4, the knocking rod 152 knocks and vibrates the annular plate 4. Since the end of the knocking rod 152 is made of rubber, it can prevent the knocking rod 152 from causing damage to the annular plate 4. The vibration of the annular plate 4 vibrates the U-shaped plate 8 and the grid plate 9, and also vibrates the particles attached to the grid plate 9 and the U-shaped plate 8, so that the attached particles fall and are transported and collected. When the annular plate 4 stops reversing, the annular plate 4 stops driving the gear ring II 154 to reverse, the gear ring II 154 stops driving the driving gear 153 to rotate forward, the rotating shaft 151 stops driving the knocking rod 152 to rotate forward, and the U-shaped plate 8 and the grid plate 9 stop vibrating. In this way, it is possible to prevent the particles from adhering to the grid plate 9 and the U-shaped plate 8 and becoming difficult to collect, thereby ensuring that all the particles can be transported and collected.

[0033] See also Fig. 9 As shown, an observation window 16 is also included, and the observation window 16 is fixedly connected symmetrically front and back on the right side of the shell 2.

[0034] When the particles are being salvaged and removed, the operator can check the salvage status of the particles through the observation window 16. In this way, corresponding processing can be made in time according to the removal status of the particles.

[0035] Finally, it is necessary to point out that the above content is only used to help understand the technical solution of the present invention and cannot be understood as limiting the scope of protection of the present invention; non-essential improvements and adjustments made by technical personnel in the field of technology based on the above content of the present invention are all within the scope of protection required by the present invention.

Claims

1. A municipal sewage purification device, comprising a grit chamber (1) and a housing (2) mounted on the grit chamber (1), the rear side of the bottom of the grit chamber (1) being an inclined surface, a liquid inlet pipe (3) being connected to the grit chamber (1), an annular plate (4) being rotatably connected in the housing (2), the annular plate (4) being provided with openings for sewage to pass through, a gear ring I (5) being fixedly connected to the outer side surface of the annular plate (4), a servo motor (6) being mounted on the housing (2), a spur gear (7) meshing with the gear ring I (5) being fixedly connected to the end of the output shaft of the servo motor (6), wherein: The invention also comprises a U-shaped plate (8), a grid plate (9), an L-shaped rod (10), a guide ring (11), a trigger plate (12), a torsion spring (13) and a conveying assembly, wherein the conveying assembly is mounted on the housing (2), the U-shaped plate (8) is fixedly connected to the inner circumference of the annular plate (4) at even intervals, the U-shaped plate (8) is rotatably connected to the grid plate (9), the grid plate (9) and the U-shaped plate (8) form a frame, a torsion spring (13) is connected between the grid plate (9) and the rotating part of the U-shaped plate (8), the L-shaped rod (10) is fixedly sleeved on the end of the shaft of the grid plate (9), and the housing ( 2) A guide ring (11) is fixedly connected to the inner wall along the circumferential direction, the inner wall of the guide ring (11) contacts the end of the L-shaped rod (10), and a trigger plate (12) is fixedly connected to the guide ring (11). The annular plate (4) reverses to drive the U-shaped plate (8) to reverse, and the U-shaped plate (8) reverses to drive the grid plate (9) to reverse. The U-shaped plate (8) and the grid plate (9) cooperate to salvage particles at the bottom of the sedimentation tank to the top for removal. The trigger plate (12) controls the L-shaped rod (10) to swing, so that the grid plate (9) swings and breaks contact with the particles, and the particles fall onto the conveying assembly to be conveyed and collected.

2. A municipal sewage purification device as claimed in claim 1, characterized in that: The trigger plate (12) is composed of an arc segment and two straight segments, wherein the two straight segments are respectively fixed to the ends of the guide ring (11), and the arc segment is connected to the two straight segments.

3. A municipal sewage purification device as claimed in claim 2, characterized in that: An arc-shaped groove is provided in the middle of the bottom of the grit chamber (1) and is in reverse contact with the grid plate (9) so as to collect the purified and precipitated particles.

4. A municipal sewage purification device as claimed in claim 3, characterized in that: The conveying assembly comprises two mounting plates (141) fixedly connected to the housing (2); a conveyor (142) is installed between the two mounting plates (141) to drive the particles to move for conveying; a driving motor (143) is installed on one of the mounting plates (141); an output shaft end of the driving motor (143) is fixedly connected to an end of a conveying wheel of one of the conveyor (142); and a guide bucket (14) is fixedly connected between the two mounting plates (141) to guide the particles.

5. A municipal sewage purification device as claimed in claim 4, characterized in that: The invention also comprises a striking assembly, which comprises fixed plates (15) symmetrically fixed to the housing (2), a rotating shaft (151) rotatably passing through the fixed plates (15), a striking rod (152) fixedly mounted on the rotating shaft (151) and used for striking and vibrating the annular plate (4) so ​​as to vibrate the grid plate (9), and a transmission assembly is provided between the annular plate (4) and the rotating shaft (151) and used for driving the rotating shaft (151) to rotate.

6. A municipal sewage purification device as claimed in claim 5, characterized in that: Adjacent knocking rods (152) are arranged in a staggered manner, and the ends of the knocking rods (152) are made of rubber material.

7. A municipal sewage purification device as claimed in claim 6, characterized in that: The transmission assembly comprises a driving gear (153) fixedly connected to the end of the rotating shaft (151), and a gear ring II (154) meshing with the driving gear (153) is fixedly connected to the outer side surface of the annular plate (4) to drive the driving gear (153) to rotate.

8. A municipal sewage purification device as claimed in claim 7, characterized in that: It also includes an observation window (16) that is symmetrically fixed and penetrated on the shell (2).

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