Sludge storage tank structure

Abstract

The invention relates to the technical field of sewage treatment, and discloses a mud storage tank structure which comprises a first baffle, a second baffle, a mud inlet, a mud outlet and a supernatant port, one end of the first baffle is connected to the wall of a mud storage tank in a swing adjusting mode, and the other end of the first baffle inclines towards the bottom of the mud storage tank; the second baffle is vertically arranged at the bottom of the sludge storage tank, and a set distance is formed between the free end of the first baffle and the second baffle; the mud inlet is formed in the pool wall of the mud storage pool and located above the first baffle; the sludge outlet is positioned at the bottom of the tank wall of the sludge storage tank and is positioned below the first baffle plate; the supernate opening is formed in the top of the wall of the sludge storage tank. The sludge dewatering device has the beneficial effects that under the action of the first baffle, new sludge entering from the sludge inlet is prevented from being mixed with thick sludge settled below the first baffle, and the supernatant outlet is formed in the top of the sludge storage tank, so that the total volume of the sludge extracted from the bottom of the sludge storage tank is reduced, and the sludge dewatering efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of sewage treatment tank structures, and in particular to a sludge storage tank structure. Background Art

[0002] The sludge storage tank is an important structure in the sewage treatment system. It is mainly used to temporarily store the sludge generated during the sewage treatment process (such as sludge from the primary sedimentation tank, secondary sedimentation tank, and thickening tank) for subsequent treatment (such as dehydration, stabilization, resource utilization, etc.).

[0003] The existing sludge storage tank only has the function of storing sludge. The sludge discharged from the sludge storage tank contains a lot of liquid, which results in a large volume of sludge that needs to be dehydrated in the subsequent process, affecting the efficiency of sludge dehydration. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the current sludge storage tank cannot separate the mud and liquid, resulting in a large volume of water required for dehydration in subsequent processes, which affects the efficiency of sludge dehydration. The purpose is to provide a sludge storage tank structure, which prevents the new mud entering from the mud inlet from mixing with the concentrated mud that has settled below the first baffle under the action of the first baffle, thereby reducing the water content of the concentrated mud settled at the bottom of the sludge storage tank, and setting a supernatant outlet at the top of the sludge storage tank so that the water in the upper part of the sludge storage tank is overflowed, reducing the total volume of mud extracted from the bottom of the sludge storage tank, and improving the dehydration efficiency of the sludge.

[0005] The present invention is achieved through the following technical solutions: A mud storage tank structure includes a first baffle, a second baffle, a mud inlet, a mud outlet and a supernatant outlet, wherein one end of the first baffle is swingably connected to the wall of the mud storage tank, and the other end is inclined toward the bottom of the mud storage tank; the second baffle is vertically arranged at the bottom of the mud storage tank, and there is a set distance between the free end of the first baffle and the second baffle; the mud inlet is arranged on the wall of the mud storage tank and is located above the first baffle; the mud outlet is located at the bottom of the mud storage tank wall and below the first baffle; the supernatant outlet is arranged at the top of the mud storage tank wall.

[0006] The beneficial effect of the present invention is that one end of the first baffle is swingably connected to the wall of the sludge storage tank, and the other end is inclined toward the bottom of the sludge storage tank, so that the mud in the sludge entering the sludge storage tank from the mud inlet settles onto the first baffle under the action of gravity, slides along the first baffle to its free end and settles to the bottom of the sludge storage tank. The second baffle is also set to make the mud sliding down from the first baffle sink from a set distance to below the first baffle, and under the action of the first baffle, the new mud entering from the mud inlet is prevented from mixing with the thick mud that has settled below the first baffle, thereby reducing the water content of the mud settled at the bottom of the sludge storage tank. A supernatant outlet is also set at the top of the sludge storage tank to reduce the total volume of mud that needs to be dehydrated, so that the water in the upper part of the sludge storage tank overflows, reducing the total volume of mud extracted from the bottom of the sludge storage tank, and improving the dehydration efficiency of the sludge. When the sludge pump extracts thick mud, the first baffle blocks the thin mud above from entering the suction port of the sludge pump, further increasing the total dehydration volume.

[0007] In some embodiments, one end of the first baffle is provided with a connecting portion having a circular cross-section, and the wall of the sludge storage tank is provided with a mounting groove that mates with the connecting portion. By providing the circular cross-section mounting portion on one end of the first baffle and rotatably mating with the mounting groove on the wall of the sludge storage tank, the first baffle can be swung to adjust its inclination angle, thereby satisfying the settling effect of sludge with different moisture contents. It also facilitates controlling the distance between the first baffle and the bottom of the sludge storage tank, facilitating smooth discharge of low-moisture-content sludge from the bottom through the sludge outlet.

[0008] In some embodiments, the cross section of the free end of the first baffle is arc-shaped. By setting the free end of the first baffle to be arc-shaped, the effect of mud falling to the bottom of the mud storage tank is improved.

[0009] In some embodiments, the setting distance is 1 meter to 1.5 meters. By setting the setting distance to 1 meter to 1.5 meters, it is convenient to prevent thick mud from clogging at the free ends of the second baffle and the first baffle.

[0010] In some embodiments, the bottom of the sludge storage tank gradually slopes downward from the second baffle to the sludge outlet. By tilting the bottom of the sludge storage tank, mud that settles on the bottom of the sludge storage tank can flow along the tilted bottom of the sludge storage tank into the sludge storage outlet, thereby preventing sludge blockage.

[0011] In some embodiments, a cover plate is further included, one end of which is sealedly connected to the top of the second baffle plate and the other end of which is sealedly connected to the wall of the sludge storage tank. The cover plate is provided to prevent sludge from settling at the bottom of the sludge storage tank away from the first baffle plate and preventing sludge from being pumped out from the sludge outlet.

[0012] In some embodiments, the cover plate gradually slopes downward from the wall of the sludge storage tank to the second baffle, and a circular chamfer is provided at the top of the cover plate where it connects to the second baffle. The downward tilt of the cover plate prevents mud from accumulating on the cover plate, allowing concentrated mud to settle along the top of the cover plate to a set distance.

[0013] In some embodiments, the supernatant liquid outlet is located at the top of the sludge storage tank wall connected to the cover plate, with the supernatant liquid outlet at a higher elevation than the sludge inlet. By placing the supernatant liquid outlet at a higher elevation than the sludge inlet, solid particles (such as sludge, slag, etc.) in the sludge, due to their higher density, naturally settle to the bottom of the sludge storage tank under the action of gravity, allowing the clearer liquid (supernatant) in the upper layer of the sludge storage tank to overflow through the higher-positioned outlet, thereby achieving solid-liquid separation.

[0014] In some embodiments, the system further includes a pull rope and a drum, one end of the pull rope being hingedly connected to the free end of the first baffle and the other end being connected to the drum, which is rotatably connected to the top of the mud storage tank wall. The pull rope and drum facilitate adjustment of the first baffle's tilt angle by adjusting the length of the pull rope using the drum when the first baffle needs to be tilted.

[0015] In some embodiments, the device further comprises a fixed rod and a rotating shaft, wherein the rotating shaft is connected to the fixed rod via a bearing, the drum is fixedly connected to the rotating shaft, and a handwheel is mounted on the top of the rotating shaft. The rotating shaft and the handwheel facilitate winding or releasing the pull rope from the drum by turning the handwheel, thereby adjusting the tilt angle of the first baffle.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The first baffle prevents the new sludge entering from the sludge inlet from mixing with the concentrated sludge that has settled below the first baffle, thereby reducing the water content of the concentrated sludge settled at the bottom of the sludge storage tank. A supernatant outlet is also provided at the top of the sludge storage tank to allow the water in the upper part of the sludge storage tank to overflow, thereby reducing the total volume of sludge extracted from the bottom of the sludge storage tank and improving the sludge dehydration efficiency.

[0017] 2. The second baffle is provided to prevent the concentrated mud sinking from the free end of the first baffle from spreading toward the end away from the first baffle, so that the mud is stacked within the set range, further improving the effect of mud concentration.

[0018] 3. The bottom of the sludge storage tank is tilted to facilitate the thick sludge settled at the bottom of the sludge storage tank to enter the sludge storage port along the tilted bottom of the sludge storage tank and prevent sludge blockage.

[0019] 4. By swinging the first baffle, the inclination angle of the first baffle can be adjusted to meet the sedimentation effect of sludge with different moisture contents, and it is convenient to control the distance between the first baffle and the bottom of the sludge storage tank, so that the low moisture content mud at the bottom can be smoothly discharged from the mud outlet. When the sludge pump extracts concentrated sludge, the first baffle is used to block the thin sludge above from entering the suction port of the sludge pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the examples. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be considered as limiting the scope. A person of ordinary skill in the art can also derive other relevant drawings based on these drawings without inventive effort. In the drawings: Figure 1 It is a vertical cross-sectional view of the present invention; Figure 2 A top view of the present invention; Figure 3 For the present invention Figure 1 Enlarged view of part K in the middle.

[0021] Markings and corresponding parts names in the accompanying drawings: Mud storage tank wall 10, supernatant outlet 11, mud inlet 12, tank bottom 13, mud outlet 14, second baffle 20, cover plate 21, arc-shaped chamfer 211, first baffle 30, connecting part 31, mud pump 40, fixing rod 50, pull rope 51, hand wheel 52, reel 53. DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with examples and drawings. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0023] Throughout this specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present invention. Therefore, appearances of the phrases "one embodiment," "an embodiment," "an example," or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combinations and / or subcombinations. Furthermore, it will be understood by those of ordinary skill in the art that the figures provided herein are for illustrative purposes only and are not necessarily drawn to scale. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0024] In the description of the present invention, the terms "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0025] The terms "first" and "second" used in the present invention are only used to distinguish corresponding components for the sake of clarity of description and are not intended to limit any order or emphasize importance. In addition, the term "connected" used in this article can refer to direct connection or indirect connection via other components unless otherwise specified.

[0026] Example See also Figure 1-Figure 3 A mud storage tank structure includes a first baffle 30, a second baffle 20, a mud inlet 12, a mud outlet 14 and a supernatant outlet 11, wherein one end of the first baffle 30 is swingably connected to the mud storage tank wall 10, and the other end is inclined toward the bottom of the mud storage tank; the second baffle 20 is vertically arranged at the bottom 13 of the mud storage tank, and there is a set distance between the free end of the first baffle 30 and the second baffle 20; the mud inlet 12 is arranged on the mud storage tank wall 10 and is located above the first baffle 30; the mud outlet 14 is located at the bottom of the mud storage tank wall 10 and below the first baffle 30; the supernatant outlet 11 is arranged at the top of the mud storage tank wall 10.

[0027] See also Figure 1-Figure 3 One end of the first baffle 30 is provided with a connecting portion 31. The connecting portion 31 is elongated and extends along the width of the first baffle 30. The cross-section of the connecting portion 31 is circular. The wall 10 of the sludge storage tank is provided with a mounting groove that mates with the connecting portion 31. By providing the mounting portion with a circular cross-section on one end of the first baffle 30 and rotatably mating with the mounting groove on the wall 10 of the sludge storage tank, the inclination angle of the first baffle 30 can be adjusted by swinging the first baffle 30, thereby meeting the settling effect of sludge with different moisture contents. It is also convenient to control the distance between the first baffle 30 and the bottom 13 of the sludge storage tank, so that the sludge with low moisture content at the bottom can be smoothly discharged from the sludge outlet 14.

[0028] Specifically, the cross section of the mounting groove is arc-shaped, and the arc-shaped opening end is for the first baffle 30 to pass through.

[0029] See also Figure 1-Figure 3The cross section of the free end of the first baffle 30 is arc-shaped. By setting the free end of the first baffle 30 to be arc-shaped, the effect of mud falling to the bottom 13 of the mud storage tank is improved.

[0030] See also Figure 1-Figure 3 The setting distance is 1 meter to 1.5 meters. By setting the setting distance to 1 meter to 1.5 meters, it is convenient to prevent thick mud from clogging at the free ends of the second baffle 20 and the first baffle 30.

[0031] See also Figure 1-Figure 3 The bottom 13 of the sludge storage tank is gradually inclined downward from the second baffle 20 to the sludge outlet 14. By tilting the bottom of the sludge storage tank, the mud settled on the bottom 13 of the sludge storage tank can flow into the sludge storage outlet along the tilted bottom 13 of the sludge storage tank, and sludge blockage is prevented.

[0032] See also Figure 1-Figure 3 , further comprising a cover plate 21, one end of which is sealedly connected to the top of the second baffle 20 and the other end of which is sealedly connected to the sludge storage tank wall 10. The cover plate 21 prevents sludge from settling on the end of the sludge storage tank bottom 13 away from the first baffle 30, preventing sludge from being pumped out of the sludge outlet 14.

[0033] See also Figure 1-Figure 3 The cover plate 21 gradually slopes downward from the sludge storage tank wall 10 to the second baffle plate 20. A circular chamfer 211 is provided at the top of the cover plate 21 where it connects to the second baffle plate 20. The downward tilt of the cover plate 21 prevents mud from accumulating on the cover plate 21, allowing concentrated mud to settle along the top of the cover plate 21 to a set distance.

[0034] See also Figure 1-Figure 3 The supernatant liquid outlet is located at the top of the sludge storage tank wall 10 connected to the cover plate 21, and the elevation of the supernatant liquid outlet is higher than the elevation of the sludge inlet 12. By setting the elevation of the supernatant liquid outlet higher than the elevation of the sludge inlet 12, solid particles (such as sludge, slag, etc.) in the sludge, due to their high density, naturally settle to the bottom 13 of the sludge storage tank under the action of gravity, and the clearer liquid (supernatant) in the upper layer of the sludge storage tank overflows through the high-position outlet, thereby achieving solid-liquid separation.

[0035] See also Figure 1-Figure 3 , further comprising a pull rope 51 and a drum 53. One end of the pull rope 51 is hinged to the free end of the first baffle 30, and the other end is connected to the drum 53. The drum 53 is rotatably connected to the top of the mud storage tank wall 10. The provision of the pull rope 51 and the drum 53 facilitates adjusting the inclination angle of the first baffle 30 by adjusting the length of the pull rope 51 via the drum 53 when the inclination angle of the first baffle 30 needs to be adjusted.

[0036] See also Figure 1-Figure 3 , further comprising a fixed rod 50 and a rotating shaft, the rotating shaft being connected to the fixed rod 50 via a bearing, the reel 53 being fixedly connected to the rotating shaft, and a handwheel 52 being mounted on the top of the rotating shaft. The provision of the rotating shaft and the handwheel 52 facilitates winding or releasing the pull rope 51 from the reel by rotating the handwheel 52, thereby adjusting the inclination angle of the first baffle 30.

[0037] See also Figure 1 The height of the second baffle 20 is 700mm-1000mm greater than the height of the free end of the first baffle 30.

[0038] During operation, the length of the pull rope 51 is adjusted by turning the hand wheel 52, so that the first baffle 30 has a set inclination angle. Mud enters the mud storage tank through the mud inlet 12. Mud and sand with a density greater than water in the mud settle onto the first baffle 30 under the action of gravity, slide along the first baffle 30 to its free end, and settle toward the bottom 13 of the mud storage tank. As it sinks, it enters the space at a set distance. The second baffle 20 prevents the mud and sand from spreading behind it. As a result, the mud and sand (concentrated mud) can only move from the set distance to the bottom of the first baffle 30 and be discharged into the dewatering machine under the action of the mud pump 40. When the mud pump 40 is sucking mud, the first baffle 30 is used to prevent the new mud entering from the mud inlet 12 from mixing with the concentrated mud that has settled below the first baffle 30, thereby reducing the water content of the mud settled at the bottom 13 of the mud storage tank. A supernatant outlet is also provided at the top of the mud storage tank to reduce the total volume of mud that needs to be dehydrated, so that the water in the upper part of the mud storage tank overflows, reducing the total volume of mud extracted from the bottom 13 of the mud storage tank, and improving the dehydration efficiency of the sludge.

[0039] The present invention is further provided with a positioning pin, which is connected to the upper end of the reel 53 and is tied to the positioning pin after the pull rope 51 is adjusted to a desired length.

[0040] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mud storage tank structure, characterized in that: include: a first baffle, one end of which is swingably connected to the wall of the sludge storage tank, and a free end of which is inclined toward the bottom of the sludge storage tank; a second baffle, the second baffle being vertically arranged at the bottom of the mud storage tank, with a set distance between the free end of the first baffle and the second baffle; A mud inlet, the mud inlet being arranged on the wall of the mud storage tank and located above the first baffle; A mud outlet, the mud outlet being located at the bottom of the mud storage tank wall and below the first baffle; The supernatant liquid port is arranged on the top of the wall of the mud storage tank.

2. The mud storage tank structure according to claim 1, characterized in that: A connecting portion is provided at one end of the first baffle, the cross section of the connecting portion is circular, and a mounting groove matching the connecting portion is provided on the wall of the mud storage tank.

3. The mud storage tank structure according to claim 1, characterized in that: The cross section of the free end of the first baffle is arc-shaped.

4. The mud storage tank structure according to claim 1, characterized in that: The setting distance is 1 meter to 1.5 meters.

5. The mud storage tank structure according to claim 1, characterized in that: The bottom of the mud storage tank gradually slopes downward from the second baffle to the mud outlet.

6. The mud storage tank structure according to claim 1, characterized in that: It also includes a cover plate, one end of which is sealed to the top of the second baffle, and the other end of which is sealed to the wall of the mud storage tank.

7. The mud storage tank structure according to claim 6, characterized in that: The cover plate is gradually inclined downward from the wall of the mud storage tank to the second baffle, and a circular arc chamfer is provided on the top of the connection between the cover plate and the second baffle.

8. The mud storage tank structure according to claim 6, characterized in that: The supernatant liquid outlet is located at the top of the mud storage tank wall connected to the cover plate, and the elevation of the supernatant liquid outlet is higher than the elevation of the mud inlet.

9. The mud storage tank structure according to any one of claims 1 to 8, characterized in that: It also includes a pull rope and a drum, one end of the pull rope is hinged to the free end of the first baffle, and the other end is connected to the drum, and the drum is rotatably connected to the top of the mud storage tank wall.

10. The mud storage tank structure according to claim 9, characterized in that: It also includes a fixed rod and a rotating shaft, wherein the rotating shaft is connected to the fixed rod through a bearing, the reel is fixedly connected to the rotating shaft, and a hand wheel is installed on the top of the rotating shaft.

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