Method for mounting sedimentation device of biochemical pool body

Abstract

The invention discloses a method for installing a sedimentation device of a biochemical pool body. The method comprises the following steps: firstly, installing a sedimentation device water outlet pipeline on the outer side wall of the sedimentation device, and fixedly installing a walking frame with rollers at the upper end of the sedimentation device; mounting a guide rail at the upper end of the side wall of the biochemical pool body; the sedimentation device is hoisted, so that rolling wheels on the two sides of a walking frame on the sedimentation device are placed on the guide rails; a water outlet pipeline of the precipitation device is pushed into a water outlet hole in the side wall of the biochemical pool body through external tension of a crane and manual assistance to realize sealed insertion; checking and adjusting the parallelism of the edge of the upper end of the precipitation device and the edge of the upper end of the biochemical pool body to be kept within a specified range, and fixing and positioning the precipitation device and the biochemical pool body; according to the installation method, the precipitation device can be completely attached to the downstream tank body, the overall coordination is realized, the installation method is simple, the operation is convenient and fast, the implementation is easy, and the influence on customer production can be effectively reduced while the requirements are met.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment, and in particular to an installation method of a biochemical pool sedimentation device. Background Art

[0002] In recent years, as the country's environmental protection requirements have become increasingly stringent, many old sewage treatment plants are facing the problem of weak treatment capacity and substandard treatment. Among them, the biochemical tank is a key link in wastewater treatment, and the effective sludge volume is a reflection of the capacity of the biochemical tank. In order to improve the treatment capacity of the biochemical tank, it is necessary to increase the sludge concentration of the biochemical treatment. The construction of a new tank not only requires new land, but also requires a lot of money.

[0003] Many companies have begun to add sedimentation tanks or other ways to modify the original tank body to increase the sludge concentration of the original tank body. This is a relatively economical way to achieve the goal. There are also integrated biochemical tank bodies that are remade with steel structures, and the sedimentation tank is placed inside the biochemical tank, above the existing tank body or elsewhere.

[0004] In the existing methods, adding an integrated biochemical treatment system saves space compared to the traditional method of separating the biochemical pool and the sedimentation pool, but it still increases costs; and adding a sedimentation pool to the original biochemical pool to increase the sludge concentration is more economical in comparison, but the method is relatively rough. A sedimentation device is placed directly in the pool body without a good combination of the sedimentation device and the original pool body, which will affect the biochemical effect of the biochemical pool and the sludge sedimentation effect. Summary of the invention

[0005] In order to make up for the above shortcomings, the present invention provides a method for installing a biochemical tank sedimentation device, which can well combine the upstream and downstream inlets and outlets of the original biochemical tank, and is easy and fast to install, with little impact on customers.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a method for installing a biochemical pool sedimentation device, comprising the following steps:

[0007] Step 1: Preparation of the sedimentation device: Install a water outlet pipe of the sedimentation device connected to its water outlet on the outer wall of the sedimentation device, and fix a walking frame with rollers on the upper end of the sedimentation device;

[0008] Step 2: Guide rail installation: Fix and install the guide rail on the upper end of the side wall of the biochemical pool body near the water outlet side;

[0009] Step 3: Hoisting of the sedimentation device: Hoist the sedimentation device to the installation area, and place the rollers on both sides of the walking frame on the sedimentation device just on the guide rails;

[0010] Step 4: outlet docking: after the sedimentation device is initially in place, the outlet pipe of the sedimentation device is pushed into the outlet hole on the side wall of the biochemical pool through the external pulling force of the crane and manual assistance to achieve sealed plugging;

[0011] Step 5: Adjust and fix the sedimentation device: After the outlet pipe of the sedimentation device is connected to the outlet hole on the side wall of the biochemical tank body, check and adjust the parallelism between the upper edge of the sedimentation device and the upper edge of the biochemical tank body to keep it within the specified range, and fix the sedimentation device and the biochemical tank body in place;

[0012] Step 6: Test the water output to confirm that the installation meets the requirements.

[0013] As a further improvement of the present invention, the water outlet hole of the biochemical pool body is processed as follows: if the water outlet hole of the biochemical pool body is a pipe structure buried in the side wall of the biochemical pool body, the water outlet pipe of the sedimentation device is directly inserted into the water outlet hole of the biochemical pool; if the water outlet hole on the side wall of the biochemical pool body is a square hole or a round hole directly formed on the concrete pool wall, the water outlet hole of the biochemical pool body is processed as follows: a short pipe with a flange is selected, and the short pipe is inserted into the water outlet hole on the side wall of the biochemical pool body, and the flange of one section of the short pipe is fixedly installed on the concrete wall surface of the inner wall of the biochemical pool body by stainless steel expansion bolts, and a sealing ring is fixedly installed in the short pipe, and the water outlet pipe of the sedimentation device is directly inserted into the short pipe and is in sealing contact with the sealing ring.

[0014] As a further improvement of the present invention, the length of the short tube is consistent with the thickness of the side wall of the biochemical pool body, so that the two ends of the short tube are aligned with the inner and outer side walls of the biochemical pool body respectively.

[0015] As a further improvement of the present invention, the outer diameter of the short tube is smaller than the inner diameter of the water outlet hole of the biochemical pool body.

[0016] As a further improvement of the present invention, one end of the short tube is welded to the inner hole of the annular flange to form an integrated structure.

[0017] As a further improvement of the present invention, the water outlet pipe on the water outlet of the sedimentation device is a stainless steel round pipe. After the water outlet pipe of the sedimentation device is pushed into the short pipe installed on the biochemical tank body, the water outlet pipe is ensured to be tightly attached to the sealing ring, and then the walking frame is hammered in the plug-in direction by mechanical external force to make the outer wall of the sedimentation device in close contact with the flange surface.

[0018] As a further improvement of the present invention, when installing the guide rail in step 2, first install several positioning steel plates at intervals on the upper end of the side wall of the biochemical pool body by fixing with expansion bolts, then place the guide rail on the upper end of the side wall of the biochemical pool body, and weld the rail to each positioning steel plate.

[0019] As a further improvement of the present invention, the guide rail is an I-beam made of carbon steel.

[0020] As a further improvement of the present invention, after the sedimentation device and the biochemical tank body are installed and adjusted, two channel steels are fixedly installed on the track, and the two channel steels are respectively pressed against the two sides of the rollers on the walking frame along the length direction of the track, so that the sedimentation device and the biochemical tank body are fixedly positioned.

[0021] As a further improvement of the present invention, after the guide rail is installed in step 2, guide rail baffles are fixedly installed at both ends of the guide rail in the length direction. The guide rail baffles are higher than the guide rail surface and can prevent the rollers on the walking frame from continuing to roll forward.

[0022] The beneficial technical effect of the present invention is as follows: by installing a water outlet pipe made of stainless steel on the sedimentation device and inserting it into the water outlet hole of the biochemical tank body, the present invention can directly precipitate the sludge mixed in the sewage in the biochemical tank, and the effluent after precipitation smoothly enters the downstream tank body, and by selecting the connection method between the water outlet pipe of the sedimentation device and the water outlet hole of the biochemical tank according to the different types of water outlet holes of the biochemical tank body, it is ensured that the water outlet pipe of the sedimentation tank is sealed and connected with the water outlet hole of the biochemical tank, and the sewage in the biochemical tank is prevented from flowing directly into the downstream tank body without passing through the sedimentation device. The present invention realizes that the sedimentation device can be fully fitted with the downstream tank body and coordinated as a whole; the installation method of the present invention can meet the installation requirements of sedimentation devices of different forms, and is convenient for designing the sedimentation device according to the need to modify the tank body or build a new tank body; and the installation method of the sedimentation device is simple, convenient to operate, and easy to implement, which can effectively reduce the impact on customer production while meeting the needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a cross-sectional view of the biochemical pool structure principle;

[0024] Figure 2 It is a schematic diagram for treating the water outlet of the biochemical pool;

[0025] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0026] Figure 4 Schematic diagram for laying tracks on the biochemical pool body;

[0027] Figure 5 This is the main view of the sedimentation device in the initial hoisting state;

[0028] Figure 6 This is a top view of the sedimentation device in its initial hoisting state;

[0029] Figure 7 This is a diagram showing the completed state of the connection between the outlet pipe of the sedimentation device and the outlet hole of the biochemical pool;

[0030] Figure 8 This is a status diagram for the completed fixation of the sedimentation device on the biochemical tank body. DETAILED DESCRIPTION

[0031] Embodiment: A method for installing a biochemical pool sedimentation device comprises the following steps:

[0032] Step 1: Preparation of the sedimentation device: Install a sedimentation device outlet pipe 9 connected to the water outlet of the sedimentation device 11 on the outer wall thereof, and fix a walking frame 7 with rollers on the upper end of the sedimentation device 11;

[0033] Step 2: Guide rail installation: Fix the guide rail 6 on the upper end of the side wall of the biochemical pool body 12 near the water outlet side;

[0034] Step 3: Hoisting the sedimentation device 11: Hoist the sedimentation device 11 to the installation area, and make the rollers on both sides of the walking frame 7 on the sedimentation device 11 just placed on the guide rail 6;

[0035] Step 4: outlet docking: after the sedimentation device 11 is initially in place, the outlet pipe of the sedimentation device 11 is pushed into the outlet hole 1 on the side wall of the biochemical tank body 12 by the external pulling force of the crane and manual assistance to achieve sealed plugging;

[0036] Step 5: Adjust and fix the sedimentation device 11: After the outlet pipe of the sedimentation device 11 is connected to the outlet hole 1 on the side wall of the biochemical tank body 12, check and adjust the parallelism between the upper edge of the sedimentation device 11 and the upper edge of the biochemical tank body 12 to keep them within the specified range, and fix the sedimentation device 11 and the biochemical tank body 12 in place;

[0037] Step 6: Test the water output to confirm that the installation meets the requirements.

[0038] An outlet pipe is installed on the outside of the sedimentation device 11 and inserted into the outlet hole 1 of the biochemical tank body 12. After the wastewater mixed with sludge in the biochemical tank flows upward into the sedimentation device 11, it is blocked by the baffle of the sedimentation device 11, and the sludge sinks back into the biochemical tank. The sewage smoothly enters the downstream tank body 13 or the secondary sedimentation tank from the outlet pipe of the sedimentation device 11, and the wastewater is further processed in the downstream tank body. The installation method of the above-mentioned sedimentation device 11 is simple, convenient and labor-saving. It can be used for newly built biochemical tank bodies 12 and can also be used for the transformation and upgrading of existing biochemical tank bodies 12.

[0039] Treatment of the water outlet hole of the biochemical pool body: If the water outlet hole 1 of the biochemical pool body 12 is a pipe structure buried in the side wall of the biochemical pool body 12, the water outlet pipe of the sedimentation device 11 is directly inserted into the water outlet hole 1 of the biochemical pool; if the water outlet hole 1 on the side wall of the biochemical pool body 12 is a square hole or a round hole directly formed on the concrete pool wall, the water outlet hole 1 of the biochemical pool body is treated as follows: a short pipe 2 with a flange is selected, and the short pipe 2 is inserted into the water outlet hole 1 on the side wall of the biochemical pool body 12, and the flange of one section of the short pipe 2 is fixedly installed on the concrete wall surface of the inner wall of the biochemical pool body 12 through a stainless steel expansion bolt 4, and a sealing ring 3 is fixedly installed in the short pipe 2, and the water outlet pipe of the sedimentation device 11 is directly inserted into the short pipe 2 and is in sealing contact with the sealing ring 3.

[0040] If the wastewater in the biochemical pool body 12 is connected to the downstream biochemical pool body 12 or the secondary sedimentation tank by a pipeline (i.e., the outlet hole 1 is a pipeline), it is not necessary to process the outlet hole 1 of the biochemical pool, and the outlet pipe on the sedimentation device 11 can be well plugged into and matched with the outlet hole 1 of the pipeline structure; if the biochemical pool body 12 is connected to the downstream biochemical pool body 12 or the secondary sedimentation tank by a square hole or a round hole in the concrete pool wall, it is necessary to process the outlet hole 1 used for communication, by installing a short pipe 2 with a flange on the biochemical pool, the flange is tightly connected to the inner wall of the biochemical pool body 12, and the short pipe 2 with a sealing ring 3 is inserted into the outlet hole 1 of the biochemical pool body 12. In this way, it can be ensured that the outlet pipe on the sedimentation device 11 is sealed and plugged with the short pipe 2, so as to prevent the sewage that has not been treated with sedimentation from directly entering the downstream biochemical pool body 12 or the secondary sedimentation tank through the gap between the outlet hole 1 and the outlet pipe.

[0041] The length of the short tube 2 is consistent with the thickness of the side wall of the biochemical pool body 12, so that the two ends of the short tube 2 are respectively aligned with the inner and outer side walls of the biochemical pool body 12. The length of the short tube 2 is consistent with the thickness of the pool body, and it is flush with the pool wall after being placed. The short tube 2 does not need a welding flange on the side connected to the downstream biochemical pool body 12 or the secondary sedimentation tank.

[0042] The outer diameter of the short tube 2 is smaller than the inner diameter of the water outlet hole 1 of the biochemical pool body. The outer diameter of the short tube 2 is one size smaller than the water outlet hole 1 (square hole or round hole) on the biochemical pool body 12 for communicating with the downstream biochemical pool body 12 or the secondary sedimentation tank, so as to facilitate placement.

[0043] One end of the short tube 2 is welded to the inner hole of the annular flange to form an integrated structure. The short tube 2 (with a built-in rubber inner ring as a sealing ring 3) is placed at the original opening position by using a single-side flange welding method, and the flange is fixed to the concrete wall with stainless steel expansion bolts 4, which facilitates the installation and positioning of the short tube 2 on the biochemical pool body 12.

[0044] The water outlet pipe on the water outlet of the sedimentation device 11 is a stainless steel round pipe. After the water outlet pipe of the sedimentation device 11 is pushed into the short pipe 2 installed on the biochemical pool body 12, after ensuring that the water outlet pipe is in close contact with the sealing ring 3, the walking frame 7 is hammered in the plugging direction by mechanical external force, so that the outer wall of the sedimentation device 11 is in close contact with the flange surface. The water outlet pipe adopts a stainless steel round pipe, which can adapt to the square or circular water outlet hole 1. When the water outlet pipe on the sedimentation device 11 is inserted into the water outlet hole 1 of the biochemical pool body 12, it is not necessary to use too much lateral force. It is only necessary to ensure that the water outlet pipe is in close contact with the sealing ring 3 in the short pipe 2, and then the walking frame 7 is hammered several times in the direction of entering the round pipe by mechanical external force, which saves manpower.

[0045] When installing the guide rail 6 in the step 2, first install a plurality of positioning steel plates 5 at intervals on the upper end of the side wall of the biochemical pool body 12 by means of expansion bolts, then place the guide rail 6 on the upper end of the side wall of the biochemical pool body 12, and weld the rail to each positioning steel plate 5. Now the positioning steel plate 5 is installed on the upper end of the side wall of the biochemical pool body 12 by means of expansion screws, and then the guide rail 6 is welded to the positioning steel plate 5, which facilitates the fixed installation of the guide rail 6, and the installation is firm and stable. In addition, the guide rail can also be directly installed on the top surface of the side wall of the pool body by means of screws. This is an equivalent replacement structure that can be easily thought of by those skilled in the art after seeing this application, and it also belongs to the protection scope of this application.

[0046] The guide rail 6 is an I-beam made of carbon steel, which is convenient for fixing and moving the pulley of the sedimentation device 11.

[0047] After the precipitation device 11 and the biochemical tank body 12 are installed and adjusted, two channel steels 10 are fixedly installed on the track, and the two channel steels 10 are respectively pressed against the two sides of the roller on the walking frame 7 along the length direction of the track, so that the precipitation device 11 and the biochemical tank body 12 are fixedly positioned. The notch on the channel steel 10 matches the I-beam, and the channel steel 10 can be directly fixed on the guide rail 6, or fixed on the side wall of the biochemical tank body 12, such as welding or screwing to the guide rail 6, or locking it on the side wall of the biochemical tank body 12 with bolts. The positioning of the precipitation device 11 is achieved by blocking the roller by the channel steel 10. In addition, the roller and the track can also be positioned by a latch structure. This is an equivalent replacement structure that can be easily thought of by those skilled in the art after seeing this application, and it also belongs to the protection scope of this application.

[0048] After the guide rail is installed in step 2, guide rail baffles 8 are fixedly installed at both ends of the guide rail 6 in the length direction. The guide rail baffles 8 are higher than the surface of the guide rail 6 and can prevent the rollers on the walking frame 7 from continuing to roll forward. The guide rail baffles 8 can prevent the walking frame 7 from slipping out of the guide rail 6 during the movement process and causing danger.

Claims

1. A method for installing a biochemical pool sedimentation device, characterized in that: The steps include: Step 1: Preparation of the sedimentation device: installing a sedimentation device outlet pipe (9) connected to the water outlet of the sedimentation device (11) on the outer wall thereof, and fixing a walking frame (7) with rollers on the upper end of the sedimentation device; Step 2: Guide rail installation: The guide rail (6) is fixedly installed on the upper end of the side wall of the biochemical pool body (12) near the water outlet side; Step 3: Hoisting of the sedimentation device: Hoist the sedimentation device to the installation area, and place the rollers on both sides of the walking frame on the sedimentation device just on the guide rails; Step 4: outlet docking: after the sedimentation device is initially in place, the outlet pipe of the sedimentation device is pushed into the outlet hole (1) on the side wall of the biochemical pool body by the external pulling force of the crane and manual assistance to achieve sealed plugging; Step 5: Adjust and fix the sedimentation device: After the outlet pipe of the sedimentation device is connected to the outlet hole on the side wall of the biochemical tank body, check and adjust the parallelism between the upper edge of the sedimentation device and the upper edge of the biochemical tank body to keep it within the specified range, and fix the sedimentation device and the biochemical tank body in place; Step 6: Test the water output to confirm that the installation meets the requirements.

2. The method for installing a biochemical pool sedimentation device according to claim 1 is characterized by: Treatment of the water outlet hole of the biochemical pool body: If the water outlet hole of the biochemical pool body is a pipe structure buried in the side wall of the biochemical pool body, the water outlet pipe of the sedimentation device is directly inserted into the water outlet hole of the biochemical pool; if the water outlet hole on the side wall of the biochemical pool body is a square hole or a round hole directly formed on the concrete pool wall, the water outlet hole of the biochemical pool body is treated in the following manner: a short pipe (2) with a flange is selected, and the short pipe is inserted into the water outlet hole on the side wall of the biochemical pool body, and the flange of one section of the short pipe is fixedly installed on the concrete wall surface of the side wall of the biochemical pool body through a stainless steel expansion bolt (4), and a sealing ring (3) is fixedly installed in the short pipe, and the water outlet pipe of the sedimentation device is directly inserted into the short pipe and is in sealing contact with the sealing ring.

3. The method for installing a biochemical pool sedimentation device according to claim 2, characterized in that: The length of the short tube is consistent with the thickness of the side wall of the biochemical pool body, so that the two ends of the short tube are aligned with the inner and outer side walls of the biochemical pool body respectively.

4. The method for installing a biochemical pool sedimentation device according to claim 2, characterized in that: The outer diameter of the short tube is smaller than the inner diameter of the water outlet of the biochemical pool body.

5. The method for installing a biochemical pool sedimentation device according to claim 2, characterized in that: One end of the short pipe is welded to the inner hole of the annular flange to form an integrated structure.

6. The method for installing a biochemical pool sedimentation device according to claim 2, characterized in that: The water outlet pipe on the water outlet of the sedimentation device is a stainless steel round pipe. After the water outlet pipe of the sedimentation device is pushed into the short pipe installed on the biochemical pool body, the water outlet pipe is ensured to be tightly attached to the sealing ring, and then the walking frame is hammered in the plug-in direction by mechanical external force to make the outer wall of the sedimentation device in close contact with the flange surface.

7. The method for installing a biochemical pool sedimentation device according to claim 1 is characterized by: When installing the guide rail in step 2, first install a plurality of positioning steel plates (5) at intervals on the upper end of the side wall of the biochemical pool body by fixing with expansion bolts, then place the guide rail on the upper end of the side wall of the biochemical pool body, and weld the rail to each positioning steel plate.

8. The method for installing a biochemical pool sedimentation device according to claim 7, characterized in that: The guide rail is an I-beam made of carbon steel.

9. The method for installing a biochemical pool sedimentation device according to claim 1 or 8, characterized in that: After the sedimentation device and the biochemical tank body are installed and adjusted, two channel steels (10) are fixedly installed on the track, and the two channel steels are respectively pressed against the two sides of the rollers on the walking frame along the length direction of the track, so that the sedimentation device and the biochemical tank body are fixedly positioned.

10. The method for installing a biochemical pool sedimentation device according to claim 1, characterized in that: After the guide rail is installed in step 2, guide rail baffles (8) are fixedly installed at both ends of the guide rail in the length direction. The guide rail baffles are higher than the guide rail surface and can prevent the rollers on the walking frame from continuing to roll forward.

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