Circulating desanding device for sewage treatment
By setting up buffer protection components and adjustment components in the sewage treatment device, the impact problem of the screening box and the dead corner of liquid extraction are solved, the service life is extended, and the sand and gravel separation effect and sand removal efficiency are improved.
Patent Information
- Application Number
- CN202422633056.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-10-30
AI Technical Summary
When the existing circulating sand removal device for sewage treatment is in use, the screening box is subjected to a large impact force, which shortens its service life, and the sand and gravel are easy to fly out, resulting in poor screening effect; there are dead corners when the sand pump pumps liquid, and it is impossible to completely separate the sand and gravel in the sewage.
A buffer protection component is set up to reduce the impact force of the screening box and prevent sand and gravel from flying out, and the comprehensive extraction of the mixed liquid is ensured by adjusting the component, including a combination of a protective net, a rotating shaft, a torsion spring and a baffle, combined with the design of a motor-driven threaded rod and a moving block to achieve protection of the screening box and comprehensive extraction of liquid.
It extends the service life of the screening box, improves the sand and gravel separation effect, avoids dead corners in liquid extraction, and ensures the integrity and efficiency of sewage sand removal.
Smart Images
Figure CN223393049U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of sewage treatment, in particular to a circulating sand removal device for sewage treatment. Background Art
[0002] Sewage treatment is the process of purifying sewage to ensure that it meets the water quality requirements for discharge into a water body or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, and catering, and is increasingly entering the daily lives of ordinary people. In the primary treatment of sewage, solid particles, sand, gravel, etc. are mainly removed by physical methods. The circulating sand removal device can clean the sand and gravel in the sewage in multiple cycles, greatly improving the treatment efficiency and effect.
[0003] After searching, a document with publication number CN217988601U and application date 2022.07.25 discloses a circulating sand removal device for sewage treatment, including a shell, a screening box is arranged in the shell, and two connecting rods are fixedly connected to the inner bottom of the screening box. The upper ends of the two connecting rods are fixedly connected to a horizontal plate, and two motors are installed at the upper end of the shell. The output shaft ends of the two motors extend to the interior of the shell and are fixedly connected to a rotating rod. The lower end of the rotating rod is fixedly connected to two L-shaped limit rods, each of the L-shaped limit rods consists of a horizontal rod and a vertical rod, and the two vertical rods pass through the corresponding horizontal plate.
[0004] However, it still has the following disadvantages in actual use:
[0005] 1. The above-mentioned circulating sand removal device for sewage treatment directly pumps the mixed liquid into the screening box when in use. This method will produce a large impact force on the screening box, which will reduce the service life of the screening box. At the same time, during the rotation of the screening box, there is a risk that the sand and gravel inside it will fly out, affecting the screening effect.
[0006] 2. The aforementioned circulating sand removal device for sewage treatment uses a sand pump to extract the mixed liquid during use. However, due to the fixed pipe of the sand pump, the sand pump cannot extract the mixed liquid from all parts of the casing, resulting in dead spots in the liquid extraction process and making it impossible to completely separate the sand and gravel from the sewage. To address this issue, we provide a circulating sand removal device for sewage treatment to solve the above-mentioned problem. Utility Model Content
[0007] The purpose of the utility model is to provide a circulating sand removal device for sewage treatment. By arranging a buffer protection component, the impact force on the screening box can be reduced, the screening box can be protected, and the service life can be increased. At the same time, the protective net is limited by the baffle and cannot be flipped outward. The sand and gravel inside it will not fly out of the screening box due to the centrifugal force, thereby ensuring the screening effect. The adjustment component can be used to extract the mixed liquid from various parts of the bottom of the box, thereby improving the separation and treatment effect of sand and gravel in the sewage, avoiding dead corners in the liquid extraction process, resulting in the inability to extract the mixed liquid in the dead corners, and affecting the sewage sand removal effect.
[0008] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:
[0009] The utility model is a circulating sand removal device for sewage treatment, comprising a box body and a screening net box suspended above the inside of the box body, wherein buffer protection components are alternately arranged above and below the inside of the screening net box, and an adjustment component is arranged below the inside of the box body;
[0010] The buffer protection assembly includes a protection net and a connecting block fixedly connected to both ends of the same side thereof, wherein the inner center position of the connecting block is rotatably connected to a rotating shaft, and a torsion spring is sleeved on the middle of the outer wall of the rotating shaft;
[0011] The adjustment component includes a motor and a threaded rod installed on its output shaft through a coupling. The other end of the threaded rod passes through the bearing on the box and the threaded hole on the first moving block in sequence and is connected to the bearing on the inner wall of the box.
[0012] The utility model is further configured such that a sewage pipe is provided on one side of the top of the box body, a water outlet pipe is provided on the bottom of the outer wall of one side of the box body, and a driving mechanism is provided at the center position of the top of the box body.
[0013] The utility model is further configured such that a stirring mechanism is embedded in the center of the bottom of the screening box, hanging plates are fixedly connected to both sides of the top of the screening box, and the bottom end of the driving mechanism can be detachably hung in the through hole on the surface of the hanging plate.
[0014] The utility model is further configured such that a circulation assembly is provided on the outer wall of the other side of the box body, the circulation assembly includes a sand pump and a first connecting pipe installed at its water inlet end through a pipe joint, and the water outlet end of the sand pump is connected to the second connecting pipe through the pipe joint.
[0015] The present invention is further configured such that the other end of the second connecting pipe is connected to the liquid return pipe through a pipe joint, and the other end of the liquid return pipe is arranged on the other side of the top of the box body.
[0016] The utility model is further configured such that the two ends of the rotating shaft are respectively mounted on the inner walls of the screening net box on both sides; a baffle is provided on the upper outer end of the protective net; and the outer wall of the baffle is fixed on the inner wall of the screening net box.
[0017] The utility model is further configured such that the bottom of the first moving block is mounted on the rear end of the upper surface of the liquid absorbing hood, the front end of the upper surface of the liquid absorbing hood is fixedly connected with the second moving block, and the guide rod is slidably connected in the through hole on the second moving block.
[0018] The utility model is further configured such that both ends of the guide rod are respectively fixed on the inner walls of both sides of the box body, a liquid extraction pipe is provided at the top center position of the liquid suction hood, and the other end of the liquid extraction pipe is connected to the other end of the first connecting pipe through a pipe joint.
[0019] The utility model has the following beneficial effects:
[0020] 1. The utility model provides a buffer protection component. When subjected to external force, the elastic properties of the protective net and the torsion spring can slow down the impact force on the screening net box, thereby protecting the screening net box and increasing its service life. At the same time, the protective net is limited by the baffle and cannot be flipped outward. The sand and gravel inside it will not fly out of the screening net box due to the centrifugal force, thereby ensuring the screening effect. It solves the problem that the above-mentioned circulating sand removal device for sewage treatment directly draws the mixed liquid into the screening net box when in use, while this method will generate a large impact force on the screening net box, reducing the service life of the screening net box, and at the same time, during the rotation of the screening net box, there is a risk of the sand and gravel inside it flying out, affecting the screening effect.
[0021] 2. The utility model is provided with an adjustment component. The operation of the motor can drive the liquid suction hood to move along the bottom of the box, and the mixed liquid in various parts of the bottom of the box can be extracted, thereby improving the separation and treatment effect of sand and gravel in sewage, avoiding dead corners in the liquid extraction process, resulting in the inability to extract the mixed liquid in the dead corners, affecting the sewage sand removal effect, and solving the problem that the above-mentioned circulating sand removal device for sewage treatment extracts the mixed liquid through a sand pump when in use. However, due to the fixed pipe of the sand pump in this method, the sand pump cannot extract the mixed liquid in various parts of the shell, and there are dead corners for liquid extraction, resulting in the inability to completely separate the sand and gravel in the sewage.
[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0024] Figure 1 This is a structural schematic diagram of a circulating sand removal device for sewage treatment.
[0025] Figure 2 This is a cross-sectional view of a circulating sand removal device for sewage treatment.
[0026] Figure 3 It is the structural diagram of the screening box.
[0027] Figure 4 This is a structural diagram of the loop component.
[0028] Figure 5 This is a structural diagram of the buffer protection component.
[0029] Figure 6 This is a structural diagram of the adjustment component.
[0030] In the accompanying drawings, the components represented by the reference numerals are as follows:
[0031] 1-box, 101-sewage pipe, 102-outlet pipe, 103-driving mechanism, 104-stirring mechanism, 105-screening box, 105a-hanging plate, 106-circulation component, 106a-sand pump, 106b-first connecting pipe, 106c-second connecting pipe, 106d-return pipe, 2-buffering protection component, 201-protective net, 201a-connecting block, 202-rotating shaft, 203-torsion spring, 204-baffle, 3-adjusting component, 301-motor, 301a-threaded rod, 302-guide rod, 303-liquid suction hood, 303a-liquid extraction pipe, 303b-first moving block, 303c-second moving block. DETAILED DESCRIPTION
[0032] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0033] Example 1
[0034] See also Figures 1 to 5 The utility model is a circulating sand removal device for sewage treatment, comprising a box body 1 and a screening net box 105 suspended above the inside thereof, wherein buffer protection components 2 are alternately arranged above and below the inside of the screening net box 105; the buffer protection component 2 comprises a protection net 201 and connecting blocks 201a fixedly connected to both ends of the same side thereof, wherein a rotating shaft 202 is rotatably connected to the inner center position of the connecting block 201a, and a torsion spring 203 is sleeved on the middle part of the outer wall of the rotating shaft 202.
[0035] Specifically, a sewage pipe 101 is provided on one side of the top of the box body 1, a water outlet pipe 102 is provided on the bottom of the outer wall of one side of the box body 1, a driving mechanism 103 is provided at the center position of the top of the box body 1, a stirring mechanism 104 is embedded in the center position of the bottom of the screening box 105, and hanging plates 105a are fixedly connected to both sides of the top of the screening box 105. The bottom end of the driving mechanism 103 can be detachably hung in the through hole on the surface of the hanging plate 105a. A circulation component 106 is provided on the outer wall of the other side of the box body 1. The circulation component 106 includes a sand pump 10 6a and a first connecting pipe 106b installed at its water inlet end through a pipe joint, the water outlet end of the sand pump 106a is connected to the second connecting pipe 106c through a pipe joint, the other end of the second connecting pipe 106c is connected to the return liquid pipe 106d through a pipe joint, the other end of the return liquid pipe 106d is arranged on the other side of the top of the box body 1, the two ends of the rotating shaft 202 are respectively mounted on the inner walls of both sides of the screening net box 105, and a baffle 204 is provided at the upper outer end of the protective net 201, and the outer wall of the baffle 204 is fixed to the inner wall of the screening net box 105.
[0036] Furthermore, the front end of the box body 1 is provided with a box door, through which the equipment can be inspected and repaired, and the screening mesh box 105 inside it can be disassembled and replaced, and replaced with sieve holes of different apertures to be suitable for the processing of various sand and gravel. The screening mesh box 105, the driving mechanism 103, the stirring mechanism 104, etc. are all existing technologies, so they are not described in detail here. The bottom end of the driving mechanism 103 is hung in the through hole on the surface of the hanging plate 105a through a hook, and the driving mechanism 103 and the screening mesh box 105 are detachably installed through the hanging plate 105a. The hanging plate 105a plays a connecting role, and then the driving mechanism 103 can be used to drive the screening mesh box 105 to rotate, wherein The outer wall of the stirring mechanism 104 is rotatably mounted on the connecting frame, and the connecting frame is fixed to the inner wall of the box body 1. The top of the stirring mechanism 104 is square and embedded in the bottom of the screening box 105. At this time, the driving mechanism 103, the screening box 105 and the stirring mechanism 104 are connected. This connection relationship, method and principle are all existing technologies, so they will not be described in detail here. When the protective net 201 is subjected to force, it will rotate with the rotating shaft 202 as the center of the circle. Under the action of the elastic performance of the torsion spring 203, the protective net 201 can be driven to rotate. The baffle 204 limits the protective net 201 to prevent the protective net 201 from flipping outward, and the pipe joint serves as a pipeline connection.
[0037] The operation process of this embodiment is as follows: sewage with sand and gravel is added into the screening box 105 through the sewage pipe 101, and the sewage is stopped when the sewage liquid level reaches the bottom of the screening box 105. Then, the driving mechanism 103 and the stirring mechanism 104 are used to stir the mixed liquid inside the box body 1, and the screening box 105 will also rotate under the action of the driving mechanism 103, and under the action of centrifugal force, the water contained in the sand and gravel inside it can be separated and thrown out. When performing this process, it is necessary to stop the external sewage from entering, and the sewage is used after multiple cycles of sand removal operations. Then, the sand pump 106a is started, and the sand pump 106a runs to extract the mixed liquid at the bottom of the box body 1 through the liquid suction cover 303, and then falls back into the screening box 105 through the first connecting pipe 106b and the second connecting pipe 106c from the return liquid pipe 106d, and the separation operation is repeated until there is no sand and gravel in the sewage. When the mixed liquid drawn in by the circulation falls into the interior of the screening net box 105, it will first fall on the surface of the protective net 201 arranged alternately at the front and rear, and the protective net 201 will be rotated downward with the rotating shaft 202 as the center of the circle by the force, and squeeze the torsion spring 203. Under the action of the elastic properties of the protective net 201 and the torsion spring 203, the impact force on the screening net box 105 can be reduced, which can protect the screening net box 105 and increase its service life. At the same time, during the rotation of the screening net box 105, since the top of the protective net 201 is limited by the baffle 204, the protective net 201 cannot flip outward, and the sand and gravel inside it will not fly out of the screening net box 105 under the action of centrifugal force, thereby ensuring the screening effect. When drying the sand and gravel inside the screening net box 105, it is necessary to first carry out multiple cycles of sand removal operations on the sewage introduced into the box body 1, and then use the driving mechanism 103 to drive the screening net box 105 to rotate to achieve the drying operation.
[0038] Example 2
[0039] See also Figure 2 and Figure 6 Based on Example 1, the difference from the first embodiment is that: an adjustment component 3 is provided, the adjustment component 3 includes a motor 301 and a threaded rod 301a installed on its output shaft through a coupling, the other end of the threaded rod 301a passes through the bearing on the box body 1 and the threaded hole on the first movable block 303b in sequence and is connected to the bearing on the inner wall of the box body 1, which solves the problem that the existing circulating sand removal device for sewage treatment extracts the mixed liquid through a sand pump when in use. However, due to the fixed pipe of the sand pump, this method cannot extract the mixed liquid from various parts of the shell, resulting in dead corners for liquid extraction, making it impossible to completely separate sand and gravel from the sewage.
[0040] Specifically, the bottom of the first moving block 303b is installed at the rear end of the upper surface of the liquid absorption hood 303, and the front end of the upper surface of the liquid absorption hood 303 is fixedly connected to the second moving block 303c. The guide rod 302 is slidably connected in the through hole on the second moving block 303c. The two ends of the guide rod 302 are respectively fixed on the inner walls on both sides of the box body 1. A liquid extraction tube 303a is provided at the top center position of the liquid absorption hood 303, and the other end of the liquid extraction tube 303a is connected to the other end of the first connecting tube 106b through a pipe joint.
[0041] Furthermore, the external thread on the outer wall of the threaded rod 301a is engaged with the internal thread in the wall of the threaded hole on the first moving block 303b to play a transmission role, and the second moving block 303c and the guide rod 302 play a limiting and guiding role for the liquid absorption cover 303.
[0042] The operation process of this embodiment is as follows: during the process of circulating sand removal and extracting mixed liquid, the motor 301 is started, and the output shaft of the motor 301 rotates to drive the threaded rod 301a to rotate through the coupling, and the external thread on the outer wall of the threaded rod 301a is engaged with the internal thread in the wall of the threaded hole on the first moving block 303b, so when the threaded rod 301a rotates, it will drive the first moving block 303b to move along the outer wall of the threaded rod 301a, and the first moving block 303b is fixed to the top rear end of the liquid suction cover 303, and the top front end of the liquid suction cover 303 is fixedly connected to the second moving block 303c, and the second moving block 303c is limited and guided by the guide rod 302, so when the first moving block 303b moves, it will drive the liquid suction cover 303 to move simultaneously The suction hood 303 moves step by step, and makes it possible to move along the bottom of the box body 1, so that the mixed liquid at various parts of the bottom of the box body 1 can be extracted, which can improve the separation and treatment effect of sand and gravel in sewage, avoid dead corners in the liquid extraction process, resulting in the inability to extract the mixed liquid at the dead corners, affecting the sewage sand removal effect. After the sewage and the fine sand and gravel therein that cannot be filtered by the screening net box 105 are filtered through multiple cycles, the screening net box 105 can be replaced with a small-aperture one through the box door on the box body 1, so that the diameter of the fine sand and gravel meets the discharge standard. The fine sand and gravel and sewage that meet the discharge standard are discharged through the sewage pipe 102, and the screened sand and gravel are located in the screening net box 105, which can be disassembled and taken out through the box door, and the sand and gravel inside are processed.
[0043] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
[0044] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, numerous modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims
1. A circulating sand removal device for sewage treatment, comprising a housing (1) and a screening box (105) suspended above the housing, characterized in that: Buffer protection components (2) are alternately arranged on the upper and lower parts of the interior of the screening box (105), and an adjustment component (3) is arranged on the lower part of the interior of the box body (1); The buffer protection assembly (2) comprises a protection net (201) and connection blocks (201a) fixedly connected to both ends of the same side of the protection net. A rotating shaft (202) is rotatably connected to the inner center of the connection block (201a). A torsion spring (203) is sleeved on the middle of the outer wall of the rotating shaft (202). The adjustment assembly (3) includes a motor (301) and a threaded rod (301a) mounted on the output shaft thereof via a coupling, the other end of the threaded rod (301a) sequentially passing through a bearing on the box body (1) and a threaded hole on the first moving block (303b) to be connected to a bearing on the inner wall of the box body (1).
2. A circulating sand removal device for sewage treatment according to claim 1, characterized in that: A sewage pipe (101) is provided on one side of the top of the box body (1), a water outlet pipe (102) is provided at the bottom of the outer wall of one side of the box body (1), and a driving mechanism (103) is provided at the center position of the top of the box body (1).
3. A circulating sand removal device for sewage treatment according to claim 2, characterized in that: A stirring mechanism (104) is embedded in the center of the bottom of the screening box (105), and hanging plates (105a) are fixedly connected to both sides of the top of the screening box (105). The bottom end of the driving mechanism (103) is detachably hung in a through hole on the surface of the hanging plate (105a).
4. A circulating sand removal device for sewage treatment according to claim 3, characterized in that: A circulation assembly (106) is provided on the outer wall of the other side of the box body (1). The circulation assembly (106) comprises a sand pump (106a) and a first connecting pipe (106b) installed at its water inlet end via a pipe joint. The water outlet end of the sand pump (106a) is connected to the second connecting pipe (106c) via the pipe joint.
5. A circulating sand removal device for sewage treatment according to claim 4, characterized in that: The other end of the second connecting pipe (106c) is connected to the liquid return pipe (106d) via a pipe joint, and the other end of the liquid return pipe (106d) is arranged on the other side of the top of the box body (1).
6. A circulating sand removal device for sewage treatment according to claim 1, characterized in that: The two ends of the rotating shaft (202) are respectively mounted on the inner walls of the screening net box (105). A baffle (204) is provided on the upper outer end of the protective net (201). The outer wall of the baffle (204) is fixed on the inner wall of the screening net box (105).
7. A circulating sand removal device for sewage treatment according to claim 5, characterized in that: The bottom of the first moving block (303b) is mounted on the rear end of the upper surface of the liquid absorbing hood (303); the front end of the upper surface of the liquid absorbing hood (303) is fixedly connected to the second moving block (303c); and the guide rod (302) is slidably connected in the through hole of the second moving block (303c).
8. A circulating sand removal device for sewage treatment according to claim 7, characterized in that: The two ends of the guide rod (302) are respectively fixed to the inner walls on both sides of the box body (1). A liquid extraction pipe (303a) is provided at the top center of the liquid suction cover (303). The other end of the liquid extraction pipe (303a) is connected to the other end of the first connecting pipe (106b) through a pipe joint.