Wastewater treatment sedimentation tank with movable inclined tube filler

Abstract

The utility model provides a wastewater treatment settling pond of movable inclined tube filler, which comprises a settling pond main body, the settling pond main body is provided with a water inlet area, a water inlet retaining wall is arranged right in front of the water inlet area, a track is arranged at the bottom in the water inlet retaining wall, a plurality of movable inclined tube filler modules are arranged on the track, and the movable inclined tube filler modules are arranged in the water inlet area. Fixed inclined tube filler modules are arranged on the left side and the right side of the track, the movable inclined tube filler module and the fixed inclined tube filler modules form an inclined tube filler area, and a first pre-sedimentation area at the front end of the sedimentation tank is formed between the water inlet retaining wall and the water inlet area. The movable inclined tube packing module can run on the track and move back and forth on the track, so that the convenience of cleaning accumulated mud is increased, the flexibility is good, and the working efficiency is improved; the water inlet retaining wall can preliminarily resist entering sewage, most sludge can be precipitated in the pre-precipitation area, the operation load of the inclined tube filler area is reduced, and the precipitation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of inclined tube sedimentation tanks, in particular to a wastewater treatment sedimentation tank with movable inclined tube fillers. Background Art

[0002] A sedimentation tank is a structure that uses sedimentation to remove suspended matter from water and is widely used in wastewater treatment. The inclined tube sedimentation tank is a new type of sedimentation tank designed in recent years. An inclined tube sedimentation tank refers to a sedimentation tank with inclined tubes in the sedimentation area. The sedimentation area of ​​a horizontal or vertical flow sedimentation tank is divided into a series of shallow sedimentation layers using inclined parallel tubes or parallel pipes (honeycomb fillers can also be used). The treated and settled sludge moves and separates in each shallow sedimentation layer. Each space between two parallel inclined plates (or in parallel tubes) is equivalent to a very shallow sedimentation tank, which shortens the particle sedimentation distance and thus shortens the sedimentation time. The precipitated sludge falls into the mud bucket at the bottom of the sedimentation tank and is then discharged through the mud discharge pipe. The supernatant after precipitation is discharged to the next process treatment unit through the outlet channel.

[0003] However, when the inclined tube sedimentation tank is in operation, especially the desulfurization wastewater contains a large amount of gypsum components, and the sludge has the characteristics of high viscosity and easy sedimentation and compaction. During the sedimentation process, the sludge settles quickly and has a high viscosity, which is not conducive to sludge discharge from the sludge hopper. Once the sludge discharge pipe is blocked, the sludge will be deposited in large quantities in the sludge hopper where the sludge discharge pipe is blocked, resulting in uneven water distribution in the sedimentation tank. In addition, when most of the sludge is deposited at the front end of the sedimentation tank, the unsmooth sludge discharge from the hopper will cause a large amount of sludge to settle at the retaining wall, causing the local water inlet velocity at the bottom of the inclined tube filler to be too large. The wastewater quickly enters from the bottom of the inclined tube filler and comes out from the top of the filler. A large amount of sludge is deposited on the top of the inclined tube filler, seriously affecting the sedimentation effect of the sedimentation tank. When there is more deposition, the filler will collapse, affecting the sedimentation effect of the sedimentation tank, and having a greater impact on the suspended solids index of the effluent water quality of the sedimentation tank system.

[0004] Therefore, the inclined tube sedimentation tank needs to be cleaned regularly. It is necessary to manually remove the inclined tube filler, clean the mud bucket, and replace the new inclined tube filler. However, there are several problems when the inclined tube filler needs to be moved during regular cleaning of the sedimentation tank:

[0005] 1. The inclined tube filler is difficult to move, and the manual labor intensity is high. There are certain safety hazards in the operation in the pool (it is necessary to lay wooden boards on the filler bracket as a platform to move the filler, and there is a lot of sludge on the filler and the wooden boards. If you are not careful, you may step on empty space or slip and other accidents);

[0006] 2. During the movement of the filler, it is easy for the filler to be partially damaged, and it is likely to drop filler fragments, which may block the sludge pump, causing equipment hazards when the sedimentation tank sludge screw pump is running;

[0007] 3. It takes a long time to clean the sedimentation tank, which affects the normal operation of the wastewater treatment system and wastewater discharge;

[0008] 4. Rain or other special weather conditions affect the sedimentation tank mud cleaning and filling replacement operations.

[0009] When the wastewater treatment sedimentation tank adopts an inclined tube filler sedimentation tank for solid-liquid separation and sedimentation, if the sludge in the wastewater has the characteristics of high viscosity, poor fluidity, and easy sedimentation and compaction, it is easy for the sludge to be deposited on the inclined tube and block the filler, causing the filler to collapse and the sludge discharge pipe to be blocked, affecting the sedimentation effect of the sedimentation tank. Replacing the inclined tube filler requires the sedimentation tank to be taken out of operation, resulting in a long construction period, a high frequency of filler replacement, and a high replacement cost, which affects the normal operation of the wastewater treatment system. Utility Model Content

[0010] In order to solve the above problems, the utility model aims to propose a wastewater treatment sedimentation tank with movable oblique tube filler, which avoids the problem of filler collapse, improves the sedimentation effect, can conveniently and quickly complete the mud cleaning work, is not easy to cause damage during the movement of the oblique tube filler, and eliminates the personal and equipment safety hazards when manually moving the filler.

[0011] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0012] A wastewater treatment sedimentation tank with movable inclined tube filler comprises a sedimentation tank main body, wherein the sedimentation tank main body is provided with a water inlet area, a water inlet retaining wall is provided directly in front of the water inlet area, a track is provided at the inner bottom of the water inlet retaining wall, a plurality of movable inclined tube filler modules are installed on the track, fixed inclined tube filler modules are provided on the left and right sides of the track, the movable inclined tube filler modules and the fixed inclined tube filler modules constitute an inclined tube filler area, and a first pre-sedimentation area at the front end of the sedimentation tank is formed between the water inlet retaining wall and the water inlet area.

[0013] Furthermore, a replacement area is provided at the front end of the water inlet retaining wall, and a water baffle is provided at one end of the replacement area close to the inclined tube filling area. The bottom of the water baffle is higher than the track to form a avoidance, and a movable door is provided in the middle of the water baffle; a second pre-sedimentation area at the front end of the sedimentation tank is formed between the water baffle and the water inlet retaining wall.

[0014] Furthermore, the movable oblique tube filler module includes a channel steel frame for fixing the oblique tube filler, and the middle support frame and the bottom support frame of the channel steel frame are both stainless steel round steel.

[0015] Furthermore, a glass fiber reinforced plastic grating is arranged on the top of the channel steel frame.

[0016] Furthermore, the top four corners of the channel steel frame are provided with lifting ears.

[0017] Furthermore, pulleys corresponding to the track are provided at the four bottom corners of the channel steel frame.

[0018] Furthermore, the track is a stainless steel channel track, extending front and back from the water inlet end to the water outlet end.

[0019] Furthermore, a mud hopper, a mud discharge pipe and a water outlet channel are provided in the sedimentation tank body.

[0020] Beneficial effects: The movable inclined tube filling module of the utility model can run on a track, and the movable inclined tube filling module can move back and forth on the track, which increases the convenience and flexibility of cleaning accumulated sludge and improves working efficiency; the water inlet retaining wall of the utility model can initially resist the incoming sewage, and most of the sludge can be precipitated in the pre-sedimentation area, reducing the operating load of the inclined tube filling area and improving the sedimentation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0022] Figure 1 A plan view of a wastewater treatment sedimentation tank with movable inclined tube fillers according to an embodiment of the utility model;

[0023] Figure 2 A cross-sectional view of a wastewater treatment sedimentation tank with movable inclined tube fillers according to an embodiment of the utility model;

[0024] Figure 3 This is a schematic structural diagram of a movable inclined tube filler module of a wastewater treatment sedimentation tank with movable inclined tube filler described in an embodiment of the utility model. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0027] Example 1

[0028] See also Figure 1-3A wastewater treatment sedimentation tank with movable inclined tube filler, comprising a sedimentation tank body 1, wherein the sedimentation tank body 1 is provided with a water inlet area 10, a water inlet retaining wall 11 is provided in front of the water inlet area 10, a track 110 is provided at the bottom of the water inlet retaining wall 11, a plurality of movable inclined tube filler modules 12 are installed on the track 110, fixed inclined tube filler modules 13 are provided on the left and right sides and the rear end of the track 110, the movable inclined tube filler module 12 and the fixed inclined tube filler module 13 constitute an inclined tube filler area, and a first pre-sedimentation area at the front end of the sedimentation tank is formed between the water inlet retaining wall 11 and the water inlet area 10.

[0029] The movable inclined tube filling module of the present embodiment can run on a track, and the movable inclined tube filling module can move back and forth on the track, which increases the convenience and flexibility of cleaning accumulated sludge and improves working efficiency; the water inlet retaining wall of the present embodiment can initially resist the incoming sewage, and most of the sludge can be precipitated in the first pre-sedimentation area, reducing the operating load of the inclined tube filling area and improving the sedimentation effect.

[0030] In a specific example, a replacement area 111 is provided at the front end of the water inlet retaining wall 11, and a water baffle 112 is provided at one end of the replacement area 111 close to the inclined tube filling area. The bottom of the water baffle 112 is higher than the track 110 to form a avoidance, and a movable door 1120 is provided in the middle of the water baffle 112; a second pre-sedimentation area at the front end of the sedimentation tank is formed between the water baffle 112 and the water inlet retaining wall 11.

[0031] It should be noted that after opening the movable door, the movable inclined tube filler module can be easily moved forward and backward along the track; the filler can be replaced by moving to the replacement area, and the system does not need to be shut down. It only needs to reduce the operating load of the sedimentation tank. The single module fillers can be lifted out one by one for replacement. The filler replacement cycle is short and the operation is convenient. The operation process does not affect the normal operation of the wastewater treatment system; the sedimentation effect of the inclined tube sedimentation tank is improved, ensuring that the suspended solids index of the wastewater treatment effluent is controllable; the second pre-sedimentation area formed between the water retaining plate and the water inlet retaining wall can further resist the incoming sewage, and some sludge can be further precipitated in the second pre-sedimentation area.

[0032] In a specific example, the movable oblique tube filler module 12 includes a channel steel frame 120 for fixing the oblique tube filler, and the middle support frame 121 and the bottom support frame 122 of the channel steel frame 120 are both stainless steel round steel.

[0033] In this embodiment, the oblique tube filler is fixed by a movable oblique tube filler module. The oblique tube filler module frame is manufactured by channel steel, which enhances the structural stability of the filler module. The bottom support frame of the oblique tube filler module and the middle support frame of the oblique tube filler module are manufactured by stainless steel round steel, which has a certain protective effect on the internal oblique tube filler. In the process of moving the filler module, the oblique tube filler is not easily damaged, which greatly reduces the situation of falling oblique tube filler fragments and enhances the protection of personal and equipment safety.

[0034] In a specific example, a glass fiber reinforced plastic grating 123 is disposed on the top of the channel steel frame 120 .

[0035] The fiberglass grating plate of the present embodiment has the characteristics of light weight, high strength and low cost. The high strength can facilitate the movement of people and equipment on the fiberglass grating plate; the low cost can improve the overall economic benefits.

[0036] In a specific example, four corners of the top of the channel steel frame 120 are provided with hanging ears 124 .

[0037] In this embodiment, the movable inclined tube filling module can be easily lifted and moved by means of lifting ears.

[0038] In a specific example, pulleys 125 corresponding to the track 110 are provided at four corners of the bottom of the channel steel frame 120 .

[0039] The movable inclined tube filling module of the present embodiment is adapted to run on a track through a pulley, and the inclined tube filling module can move forward and backward on the track, thereby increasing the convenience and flexibility of cleaning accumulated mud and improving working efficiency.

[0040] In a specific example, the track 110 is a stainless steel channel track extending front to back from the water inlet end to the water outlet end.

[0041] In a specific example, a mud bucket 14 , a mud discharge pipe 15 and a water outlet channel 16 are provided in the sedimentation tank body 1 .

[0042] The precipitated sludge in this embodiment falls into the mud bucket at the bottom of the sedimentation tank and is then discharged through the mud discharge pipe. The supernatant after precipitation is discharged to the next process treatment unit through the outlet channel.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wastewater treatment sedimentation tank with movable inclined tube filler, characterized in that: The invention comprises a sedimentation tank body (1), wherein the sedimentation tank body (1) is provided with a water inlet area (10), a water inlet retaining wall (11) is provided in front of the water inlet area (10), a track (110) is provided at the bottom of the water inlet retaining wall (11), a plurality of movable inclined tube filling modules (12) are installed on the track (110), and fixed inclined tube filling modules (13) are provided on the left and right sides of the track (110), the movable inclined tube filling modules (12) and the fixed inclined tube filling modules (13) form an inclined tube filling area, and the water inlet area (10) is provided with a water inlet retaining wall (11), wherein the movable inclined tube filling modules (12) and the fixed inclined tube filling modules (13) form an inclined tube filling area. A first pre-sedimentation zone at the front end of the sedimentation tank is formed between the retaining wall (11) and the water inlet zone (10); a replacement zone (111) is provided at the front end of the water inlet retaining wall (11); a water baffle (112) is provided at one end of the replacement zone (111) close to the inclined tube filling zone; the bottom of the water baffle (112) is higher than the track (110) to form a avoidance, and a movable door (1120) is provided in the middle of the water baffle (112); a second pre-sedimentation zone at the front end of the sedimentation tank is formed between the water baffle (112) and the water inlet retaining wall (11).

2. The wastewater treatment sedimentation tank with movable inclined tube filler according to claim 1 is characterized in that: The movable oblique tube filler module (12) comprises a channel steel frame (120) for fixing the oblique tube filler, and the middle support frame (121) and the bottom support frame (122) of the channel steel frame (120) are both made of stainless steel round steel.

3. The wastewater treatment sedimentation tank with movable inclined tube filler according to claim 2 is characterized in that: A glass fiber reinforced plastic grating plate (123) is arranged on the top of the channel steel frame (120).

4. The wastewater treatment sedimentation tank with movable inclined tube filler according to claim 2 is characterized in that: The top four corners of the channel steel frame (120) are provided with lifting ears (124).

5. The wastewater treatment sedimentation tank with movable inclined tube filler according to claim 2 is characterized in that: Pulleys (125) corresponding to the track (110) are provided at the four bottom corners of the channel steel frame (120).

6. The wastewater treatment sedimentation tank with movable inclined tube filler according to claim 1 is characterized in that: The track (110) is a stainless steel channel track, extending frontward and rearward from the water inlet end to the water outlet end.

7. The wastewater treatment sedimentation tank with movable inclined tube filler according to claim 1 is characterized in that: The sedimentation tank body (1) is provided with a mud bucket (14), a mud discharge pipe (15) and a water outlet channel (16).

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