Primary sedimentation tank of paper mill sewage treatment equipment

Abstract

The utility model provides a primary sedimentation tank of paper mill sewage treatment equipment, the primary sedimentation tank of paper mill sewage treatment equipment comprises a tank body, the bottom side surface of the tank body is fixedly provided with a support, and the inner cavity of the bottom end of the tank body is provided with a discharge groove; the top side of the tank body is fixedly provided with the stirring mechanism for uniformly mixing sewage and a flocculating agent; the bottom end of the tank body is provided with the discharging mechanism for discharging sediments in an anti-blocking manner; the adjusting mechanism is mounted on the surface of the right side of the top end of the tank body. Sewage is injected into the tank body, the sewage and a flocculating agent in the tank body are stirred through the stirring mechanism, uniform mixing of the flocculating agent and the sewage in the tank body is guaranteed, the non-uniform mixing condition is avoided, the follow-up sedimentation effect is improved, in the clear water discharging process, the depth of the water outlet pipe is adjusted through the adjusting mechanism, and clear water can be better and more effectively discharged; and through the arrangement of the discharging mechanism, deposited impurities can be conveniently and automatically discharged.

Description

Technical Field

[0001] The utility model relates to a primary sedimentation tank of sewage treatment equipment in a paper mill. Background Art

[0002] The primary sedimentation tank is a structure used to remove settleable and floating matter in sewage treatment. Its function is to flocculate fine solids into larger particles. The primary sedimentation tank is mainly used to settle suspended matter in sewage and reduce the SS index of sewage. The primary sedimentation tank can remove settleable and floating matter in wastewater. After primary sedimentation, about 50% of settleable matter, grease and floating matter and 20% of BOD can be removed. Calculated by removing unit mass of BOD or solid matter, the primary sedimentation tank is the most economical purification step. Both domestic sewage and industrial sewage with high suspended matter can be easily pretreated using the primary sedimentation tank.

[0003] At present, in the use of primary sedimentation tanks, the flocculant and sewage are not mixed completely in the primary sedimentation tank, resulting in a poor flocculation effect, and a large amount of water will be discharged when the sediment is discharged through the discharge pipe. Utility Model Content

[0004] The utility model provides a primary sedimentation tank for wastewater treatment equipment of a paper mill in order to solve the technical problems that, during the use of the primary sedimentation tank, flocculant and sewage are not mixed completely in the primary sedimentation tank, resulting in poor flocculation effect, and a large amount of water is discharged when the sediment is discharged through a discharge pipe.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a primary sedimentation tank of a paper mill sewage treatment equipment, the primary sedimentation tank of the paper mill sewage treatment equipment comprising:

[0007] A pool body, wherein a support is fixedly mounted on the bottom surface of the pool body, and a discharge groove is provided in the inner cavity at the bottom end of the pool body;

[0008] A stirring mechanism, a stirring mechanism for uniformly mixing sewage and flocculant is fixedly installed on the top side of the tank body;

[0009] A discharge mechanism, wherein the bottom of the tank body is provided with a discharge mechanism for preventing sediment from being blocked and discharged;

[0010] An adjusting mechanism is installed on the right side surface of the top end of the pool body.

[0011] In the present technical solution, sewage is injected into the tank body, and the sewage and flocculant in the tank body are stirred by a stirring mechanism to ensure that the flocculant and sewage in the tank body are mixed evenly, avoid uneven mixing, and improve the subsequent sedimentation effect. During the discharge of clean water, the depth of the outlet pipe is adjusted by an adjusting mechanism to facilitate better and more effective discharge of clean water. Through the setting of the discharge mechanism, the precipitated debris can be automatically discharged to avoid blockage during the discharge process.

[0012] The number of the supports is four, and the four supports are distributed in a ring shape on the bottom surface of the pool body.

[0013] The left side of the top of the pool body is fixedly connected with a water inlet pipe, and the right side of the top of the pool body is slidably connected with a water outlet pipe.

[0014] The top side of the pool body is fixedly connected with a medicine adding shell, the surface of the medicine adding shell is provided with scale lines, and the bottom side surface of the medicine adding shell is fixedly installed with a valve.

[0015] In this technical solution, it is convenient to discharge the coagulant quantitatively.

[0016] The adjustment mechanism includes an electric push rod, a moving column, a guide plate, an adjustment plate and a buffer seat. The electric push rod is fixedly installed on the right side surface of the pool body, the moving column is fixedly installed on the output end of the electric push rod, and the adjustment seat is fixedly installed on the top of the moving column. The moving column slides through the surface of the guide plate, and the guide plate is fixedly installed on the right side surface of the top of the pool body. The adjustment seat is fixedly connected to the side surface of the water outlet pipe, and a buffer seat fixedly installed on the top of the pool body is provided on the bottom side of the adjustment seat.

[0017] In this technical solution, under the action of the electric push rod, the electric push rod pushes the moving column to move, and the moving column drives the adjustment plate to move. The adjustment plate drives the water outlet pipe to adjust the depth, so as to facilitate better extraction of clean water at the bottom.

[0018] The discharge mechanism includes a discharge pipe, a conveying motor, a spiral blade and a discharge pipe. The discharge pipe is fixedly connected to the discharge trough. A conveying motor is fixedly installed on the right surface of the discharge pipe. An auger is connected to the output end of the conveying motor. The bottom side of the right end of the discharge pipe is fixedly connected to the discharge pipe.

[0019] In this technical solution, the conveying motor is started, and the conveying motor drives the spiral blade to rotate. The spiral blade drives the precipitated impurities in the discharge pipe to be automatically conveyed and discharged through the discharge pipe, thereby improving the discharge effect and meeting practical needs.

[0020] The stirring mechanism includes a servo motor, a stirring shaft, a stirring rod, a connecting shaft, a limit plate and a stirring plate. The servo motor is fixedly installed on the top side of the pool body, the output end of the servo motor is connected to the stirring shaft, the stirring rod is fixedly installed on the side surface of the stirring shaft, the bottom end of the stirring shaft is slidably connected to the connecting shaft, the bottom end of the connecting shaft is fixedly installed with a limit plate, and the side surface of the limit plate is fixedly installed with a stirring plate.

[0021] In this technical solution, the servo motor is started, and the servo motor drives the stirring shaft to drive the stirring rod fixedly installed on the side surface to rotate. The stirring rod is used for mixing to ensure that the sewage and the flocculant are mixed evenly. At the same time, the stirring shaft drives the connecting shaft connected to the bottom end to rotate, and the connecting shaft drives the limiting plate fixedly installed on the bottom end to rotate. The limiting plate drives the stirring plate fixedly connected to the side surface to rotate, thereby improving the stirring and mixing effect, ensuring that the flocculant fully contacts the sewage, and improving the sedimentation effect.

[0022] There are several stirring rods, which are symmetrically distributed about the stirring shaft. A rubber ring sleeved on the surface of the connecting shaft is fixedly installed at the bottom end of the stirring shaft.

[0023] In the technical solution, the surface of the connecting shaft is cleaned by a rubber ring, thereby improving the effect of cleaning impurities.

[0024] A sliding cavity is provided at the bottom end of the stirring shaft, and two opposite sides of the sliding cavity are connected to guide grooves provided on the inner wall of the stirring shaft. A guide block is slidably connected to the inner cavity of the guide groove, and the guide block is fixedly installed on the side surface of the top end of the connecting shaft.

[0025] In the technical solution, the guide block slides along the guide groove, and the guide groove limits the guide block of the sliding connection, thereby ensuring the stable rotation of the connecting shaft and facilitating use.

[0026] A hydraulic cylinder is fixedly installed on the bottom surface of the pool body, and a sealing plug is fixedly installed on the output end of the hydraulic cylinder.

[0027] In the present technical solution, the hydraulic cylinder pushes the sealing plug to move under the action of the hydraulic cylinder, and the discharge tank port is sealed by the sealing plug, so as to control the discharge of water and facilitate the control of the discharge of sediment.

[0028] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0029] The positive and progressive effects of the utility model are:

[0030] The primary sedimentation tank of the paper mill wastewater treatment equipment proposed above injects sewage into the tank body, and stirs the sewage and flocculant in the tank body through a stirring mechanism to ensure that the flocculant and sewage in the tank body are mixed evenly, avoid uneven mixing, and improve the subsequent sedimentation effect. During the discharge of clean water, the depth of the outlet pipe is adjusted by an adjusting mechanism to facilitate better and more effective discharge of clean water. Through the setting of the discharge mechanism, the precipitated debris can be automatically discharged to avoid blockage during the discharge process. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The utility model is a three-dimensional structural schematic diagram of the primary sedimentation tank of the paper mill sewage treatment equipment.

[0032] Figure 2 It is a schematic diagram of the overall front cross-sectional structure of the primary sedimentation tank of the paper mill sewage treatment equipment of the utility model.

[0033] Figure 3 The utility model is a primary sedimentation tank of a paper mill sewage treatment equipment Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0034] Figure 4 It is a schematic diagram of the top view of the connection structure of the connecting shaft and the stirring shaft of the primary sedimentation tank of the paper mill sewage treatment equipment of the utility model.

[0035] Description of Reference Numerals

[0036] 1. Tank body; 101. Discharge trough; 2. Support; 3. Water inlet pipe; 4. Water outlet pipe; 5. Adjustment seat; 6. Electric push rod; 7. Moving column; 8. Guide plate; 9. Buffer seat; 10. Servo motor; 11. Adding shell; 12. Stirring shaft; 13. Stirring rod; 14. Connecting shaft; 15. Limiting piece; 16. Guide block; 17. Rubber ring; 18. Stirring piece; 19. Hydraulic cylinder; 20. Sealing plug; 21. Discharge pipe; 22. Conveying motor; 23. Spiral blade; 24. Feeding pipe. DETAILED DESCRIPTION

[0037] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0038] like Figure 1-4 As shown, the primary sedimentation tank of the paper mill wastewater treatment equipment includes:

[0039] A tank body 1, a support 2 is fixedly mounted on the bottom surface of the tank body 1, and a discharge groove 101 is opened in the inner cavity at the bottom end of the tank body 1;

[0040] A stirring mechanism, a stirring mechanism for uniformly mixing sewage and flocculant is fixedly installed on the top side of the tank body 1;

[0041] A discharge mechanism, wherein the bottom end of the tank body 1 is provided with a discharge mechanism for preventing sediment from being blocked and discharged;

[0042] The regulating mechanism is installed on the right side surface of the top end of the pool body 1.

[0043] Sewage is injected into the tank body 1, and the sewage and flocculant in the tank body 1 are stirred by a stirring mechanism to ensure that the flocculant and sewage in the tank body 1 are mixed evenly, avoid uneven mixing, and improve the subsequent sedimentation effect. During the discharge of clean water, the depth of the outlet pipe 4 is adjusted by the adjusting mechanism to facilitate better and more effective discharge of clean water. Through the setting of the discharge mechanism, the precipitated debris can be automatically discharged to avoid blockage during the discharge process.

[0044] There are four supports 2 , which are distributed in a ring shape on the bottom surface of the pool body 1 .

[0045] The left side of the top of the pool body 1 is fixedly connected with a water inlet pipe 3, and the right side of the top of the pool body 1 is slidably connected with a water outlet pipe 4.

[0046] The top side of the pool body 1 is fixedly connected to a medicine adding shell 11, the surface of the medicine adding shell 11 is provided with scale lines, and the bottom side surface of the medicine adding shell 11 is fixedly installed with a valve to facilitate quantitative discharge of the coagulant.

[0047] The adjustment mechanism includes an electric push rod 6, a moving column 7, a guide plate 8, an adjustment plate and a buffer seat 9. The electric push rod 6 is fixedly installed on the right side surface of the pool body 1. The moving column 7 is fixedly installed on the output end of the electric push rod 6. The adjustment seat 5 is fixedly installed on the top of the moving column 7. The moving column 7 slides through the surface of the guide plate 8. The guide plate 8 is fixedly installed on the right side surface of the top of the pool body 1. The adjustment seat 5 is fixedly connected to the side surface of the water outlet pipe 4. The bottom side of the adjustment seat 5 is provided with a buffer seat 9 fixedly installed on the top of the pool body 1.

[0048] Under the action of the electric push rod 6, the electric push rod 6 pushes the moving column 7 to move, and the moving column 7 drives the adjustment plate to move, and the water outlet pipe 4 is driven by the adjustment plate to adjust the depth, so as to better extract the clean water at the bottom.

[0049] The discharge mechanism includes a discharge pipe 21, a conveying motor 22, a spiral blade 23 and a discharge pipe 24. The discharge pipe 21 is fixedly connected to the discharge trough 101. The conveying motor 22 is fixedly installed on the right surface of the discharge pipe 21. The output end of the conveying motor 22 is connected to a screw dragon. The bottom side of the right end of the discharge pipe 21 is fixedly connected to the discharge pipe 24.

[0050] The conveying motor 22 is started, and the conveying motor 22 drives the spiral blade 23 to rotate. The spiral blade 23 drives the precipitated impurities in the discharge pipe 21 to be automatically conveyed and discharged through the discharge pipe 24, thereby improving the discharge effect and meeting practical needs.

[0051] The stirring mechanism includes a servo motor 10, a stirring shaft 12, a stirring rod 13, a connecting shaft 14, a limit plate 15 and a stirring plate 2018. The servo motor 10 is fixedly installed on the top side of the pool body 1, and the output end of the servo motor 10 is connected to the stirring shaft 12. The stirring rod 13 is fixedly installed on the side surface of the stirring shaft 12. The bottom end of the stirring shaft 12 is slidably connected to the connecting shaft 14. The bottom end of the connecting shaft 14 is fixedly installed with a limit plate 15, and the side surface of the limit plate 15 is fixedly installed with a stirring plate 2018.

[0052] Start the servo motor 10. The servo motor 10 drives the stirring shaft 12 to drive the stirring rod 13 fixedly installed on the side surface to rotate. The stirring rod 13 is used for mixing to ensure that the sewage and the flocculant are evenly mixed. At the same time, the stirring shaft 12 drives the connecting shaft 14 connected to the bottom to rotate. The connecting shaft 14 drives the limiting plate 15 fixedly installed on the bottom to rotate. The limiting plate 15 drives the stirring plate 2018 fixedly connected to the side surface to rotate, thereby improving the stirring and mixing effect, ensuring that the flocculant fully contacts the sewage, and improving the sedimentation effect.

[0053] There are a plurality of stirring rods 13 , which are symmetrically distributed about the stirring shaft 12 . A rubber ring 17 sleeved on the surface of the connecting shaft 14 is fixedly mounted on the bottom end of the stirring shaft 12 .

[0054] The surface of the connecting shaft 14 is cleaned by the rubber ring 17 to improve the effect of cleaning impurities.

[0055] A sliding cavity is formed at the bottom end of the stirring shaft 12 , and two opposite sides of the sliding cavity are connected to guide grooves formed on the inner wall of the stirring shaft 12 . A guide block 16 is slidably connected to the inner cavity of the guide groove, and the guide block 16 is fixedly mounted on the top side surface of the connecting shaft 14 .

[0056] The guide block 16 slides along the guide groove, and the guide groove limits the slidingly connected guide block 16, thereby ensuring the stable rotation of the connecting shaft 14 and facilitating use.

[0057] A hydraulic cylinder 19 is fixedly mounted on the bottom surface of the pool body 1 , and a sealing plug is fixedly mounted on the output end of the hydraulic cylinder 19 .

[0058] Under the action of the hydraulic cylinder 19, the hydraulic cylinder 19 pushes the sealing plug to move, and the port of the discharge groove 101 is sealed by the sealing plug, so as to control the discharge of water and facilitate the control of the discharge of sediment.

[0059] The utility model is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the utility model, but these changes and modifications are within the protection scope of the utility model.

Claims

1. A primary sedimentation tank of a paper mill wastewater treatment facility, characterized in that: The primary sedimentation tank of the paper mill wastewater treatment equipment comprises: A tank body (1), wherein a support (2) is fixedly mounted on the bottom surface of the tank body (1), and a discharge groove (101) is provided in the inner cavity at the bottom end of the tank body (1); A stirring mechanism, wherein a stirring mechanism for uniformly mixing sewage and flocculant is fixedly installed on the top side of the tank body (1); The stirring mechanism comprises a servo motor (10), a stirring shaft (12), a stirring rod (13), a connecting shaft (14), a limiting plate (15) and a stirring plate (18); the servo motor (10) is fixedly mounted on the top side of the pool body (1); the output end of the servo motor (10) is connected to the stirring shaft (12); the stirring rod (13) is fixedly mounted on the side surface of the stirring shaft (12); the bottom end of the stirring shaft (12) is slidably connected to the connecting shaft (14); the bottom end of the connecting shaft (14) is fixedly mounted with a limiting plate (15); and the side surface of the limiting plate (15) is fixedly mounted with the stirring plate (18); A discharge mechanism, wherein the bottom end of the tank body (1) is provided with a discharge mechanism for preventing sediment from being blocked and discharged; An adjusting mechanism is installed on the right side surface of the top end of the pool body (1).

2. A primary sedimentation tank for paper mill wastewater treatment equipment as claimed in claim 1, characterized in that: The number of the supports (2) is four, and the four supports (2) are distributed in a ring shape on the bottom surface of the pool body (1).

3. The primary sedimentation tank of a paper mill wastewater treatment equipment according to claim 1, characterized in that: The left side of the top end of the pool body (1) is fixedly connected to a water inlet pipe (3), and the right side of the top end of the pool body (1) is slidably connected to a water outlet pipe (4).

4. A primary sedimentation tank for paper mill wastewater treatment equipment as claimed in claim 1, characterized in that: The top side of the pool body (1) is fixedly connected to a medicine adding shell (11), a scale line is provided on the surface of the medicine adding shell (11), and a valve is fixedly installed on the bottom side surface of the medicine adding shell (11).

5. The primary sedimentation tank of a paper mill wastewater treatment equipment according to claim 1, characterized in that: The adjustment mechanism comprises an electric push rod (6), a moving column (7), a guide plate (8), an adjustment plate and a buffer seat (9); the electric push rod (6) is fixedly mounted on the right side surface of the pool body (1); the moving column (7) is fixedly mounted on the output end of the electric push rod (6); the adjustment seat (5) is fixedly mounted on the top of the moving column (7); the moving column (7) slides through the surface of the guide plate (8); the guide plate (8) is fixedly mounted on the right side surface of the top of the pool body (1); the adjustment seat (5) is fixedly connected to the side surface of the water outlet pipe (4); and the bottom side of the adjustment seat (5) is provided with a buffer seat (9) fixedly mounted on the top of the pool body (1).

6. The primary sedimentation tank of a paper mill wastewater treatment equipment according to claim 1, characterized in that: The discharge mechanism comprises a discharge pipe (21), a conveying motor (22), a spiral blade (23) and a discharge pipe (24); the discharge pipe (21) is fixedly connected to the discharge trough (101); the conveying motor (22) is fixedly mounted on the right surface of the discharge pipe (21); the output end of the conveying motor (22) is connected to an auger; and the bottom side of the right end of the discharge pipe (21) is fixedly connected to the discharge pipe (24).

7. The primary sedimentation tank of a paper mill wastewater treatment equipment according to claim 1, characterized in that: The number of the stirring rods (13) is several, and the several stirring rods (13) are symmetrically distributed about the stirring shaft (12). The bottom end of the stirring shaft (12) is fixedly mounted with a rubber ring (17) sleeved on the surface of the connecting shaft (14).

8. The primary sedimentation tank of a paper mill wastewater treatment equipment according to claim 1, characterized in that: A sliding cavity is provided at the bottom end of the stirring shaft (12), and the sliding cavity is connected to guide grooves provided on the inner wall of the stirring shaft (12) on opposite sides. A guide block (16) is slidably connected to the inner cavity of the guide groove, and the guide block (16) is fixedly mounted on the top side surface of the connecting shaft (14).

9. A primary sedimentation tank of a paper mill wastewater treatment facility as claimed in claim 1, characterized in that: A hydraulic cylinder (19) is fixedly mounted on the bottom surface of the tank body (1), and a sealing plug (20) is fixedly mounted on the output end of the hydraulic cylinder (19).

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