Floating object suction device of sewage treatment tank

Abstract

The utility model discloses a floating object suction device of a sewage treatment tank, which relates to the technical field of water treatment devices and comprises a sedimentation tank, and a defoaming device is mounted at the edge of the top of the sedimentation tank and comprises a bearing plate, a motor and an auxiliary frame. Wherein the bearing plate is positioned on the outer side of the sedimentation tank and is connected with the auxiliary frame positioned on the inner side of the sedimentation tank; the motor inversely penetrates through the middle rear position of the bearing plate; a water spraying mechanism and a suction mechanism are correspondingly mounted on the upper surface and the lower surface of the auxiliary frame respectively, double fork arms which are symmetrically arranged are mounted at the bottom of the bearing plate, and springs and transmission wheels are correspondingly arranged at the tops and the bottoms of the double fork arms respectively. In addition, a defoaming agent for surface reaction and floating filamentous bacteria can be extracted, so that the content of microorganisms is reduced, and the index of effluent quality is improved through a physical auxiliary means.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment devices, in particular to a floating object suction device for a sewage treatment pool. Background Art

[0002] As an important link in the water treatment process, the sedimentation tank is mainly used to remove suspended matter in the water. In this process, the raw water contains certain surfactants or organic substances, which react with microorganisms or other chemicals under specific conditions to form foam on the surface of the sedimentation tank. Therefore, when treating sewage containing organic pollutants, in addition to paying close attention to the operating status of treatment units such as sedimentation tanks, it is also necessary to take appropriate measures in time to control and eliminate foam to ensure the effectiveness of sewage treatment and the quality of effluent.

[0003] Through practice and research, it is found that when treating the upper foam, the effect of adding defoaming agent is generally more significant. However, defoaming agent is a chemical with a high COD content. Excessive addition may cause the COD of sewage to exceed the standard. In addition, the supernatant of the anaerobic digester can be used to return the supernatant of the anaerobic digester to the aeration tank to control the generation of foam on the surface of the aeration tank. However, this method will also introduce high concentrations of oxygen-consuming substances and ammonia nitrogen, which will ultimately affect the effluent quality. Therefore, physical treatment methods are more appropriate. Utility Model Content

[0004] Therefore, in order to solve the above-mentioned problems and shortcomings, the utility model provides a floating object suction device for a sewage treatment tank, including a sedimentation tank, wherein a defoaming device is installed at the edge position of the top of the sedimentation tank, and the defoaming device includes a bearing plate, a motor and an auxiliary frame, wherein the bearing plate is located on the outside of the sedimentation tank and is connected to the auxiliary frame located on the inside of the sedimentation tank, and the motor is inverted and runs through the middle and rear position of the bearing plate; a water spraying mechanism and a suction mechanism are respectively installed on the upper and lower surfaces of the auxiliary frame, and a symmetrically arranged double fork arm is installed at the bottom of the bearing plate, and a spring and a transmission wheel are respectively arranged on the top and bottom of the double fork arm, wherein the double fork arm is movably connected to the bearing plate by rivets, and is limited by the bearing plate by springs, and any transmission wheel is connected to the transmission wheel of the motor by a synchronous belt.

[0005] Furthermore, the water spraying mechanism is composed of a lifting pump, a water tank and a spray pipe, wherein the water tank is connected to the water tank through a hose, and the spray pipe is arranged in a linear array along the outer side of the water tank.

[0006] Furthermore, the suction mechanism is composed of a steering column, a rotating shaft, a suction port, a plug, a one-way valve, a filter plug, a suction chamber and a suction pump. The steering column is connected to the bottom of the auxiliary frame, the suction chamber is connected to the inner side of the steering column through the rotating shaft, the suction port is opened at the end of the suction chamber, and the plug, the one-way valve and the filter plug are respectively arranged on the inner side of the suction port in sequence.

[0007] Furthermore, a support rod is provided at the center position between the bottom of the auxiliary frame and the bottom of the sedimentation tank.

[0008] Furthermore, a limiting wheel is installed on the inner side of the bottom of the auxiliary frame close to the suction mechanism, and the limiting wheel and the transmission wheel are respectively kept in contact with the inner and outer side walls of the sedimentation tank.

[0009] Furthermore, the suction port, the plug and the one-way valve are connected and inserted into the suction cavity as a whole, and the bottom of the suction port 323 is connected with a sieve.

[0010] The beneficial effects of the utility model can be reflected in the following aspects after specific analysis:

[0011] Advantage 1: The purpose of the water spraying mechanism is to break the foam floating on the water surface by spraying water, thereby reducing the amount of foam. This is a physical defoaming method that can solve the foam problem, but a small amount of filamentous bacteria may still exist on the surface of the water. Therefore, it is also necessary to extract the foam through a suction mechanism to reduce the microbial content and reduce the COD in the sedimentation tank by physical means, thereby improving the water quality indicators and reducing subsequent treatment processes.

[0012] Advantage 2: When the transmission wheel rotates, the defoaming device is driven by the transmission wheel to rotate with the support rod in the center of the sedimentation tank as the center of the circle, thereby realizing cyclic defoaming treatment. More importantly, the cooperation of the water spraying mechanism and the suction mechanism in the present application can not only realize the basic defoaming steps, but also can extract the defoaming agent reacted on the surface and the floating filamentous bacteria. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a floating object suction device for a sewage treatment pool of the utility model;

[0014] Figure 2 This utility model Figure 1 Sectional view AA in the A direction;

[0015] Figure 3 This utility model Figure 1 A top view of the middle defoaming device and auxiliary frame;

[0016] Figure 4 This utility model Figure 2 A longitudinal section diagram of the suction mechanism;

[0017] Figure numerals: sedimentation tank 1, defoaming device 2, supporting plate 201, motor 202, auxiliary frame 3, double fork arm 203, transmission wheel 204, spring 205, limiting wheel 206, water spraying mechanism 301, lifting pump 311, water tank 312, nozzle 313, suction mechanism 302, steering column 321, rotating shaft 322, suction port 323, plug 324, one-way valve 325, filter plug 326, suction chamber 327, sieve wool 328, suction pump 329. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings, and the technical solutions in the embodiments of the present invention will be described clearly and completely, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work shall fall within the scope of protection of the present invention;

[0019] It should be understood that ordinal numbers and directional descriptions, such as "first", "second", "third", "upper, lower, left, right", etc., are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and therefore cannot be understood as a limitation on the present utility model.

[0020] The following is a further detailed description of the technical solution of the utility model in combination with the drawings and specific embodiments of the specification. The present application provides a floating object suction device for a sewage treatment tank, comprising a sedimentation tank 1, a defoaming device 2 is installed at the edge position of the top of the sedimentation tank 1, and the defoaming device 2 includes a bearing plate 201, a motor 202 and an auxiliary frame 3, wherein the bearing plate 201 is located outside the sedimentation tank 1 and is connected to the auxiliary frame 3 located inside the sedimentation tank 1, and the motor 202 is inverted and passes through the middle and rear position of the bearing plate 201; a water spraying mechanism 301 and a suction mechanism 302 are installed on the upper and lower surfaces of the auxiliary frame 3, respectively, a symmetrically arranged double fork arms 203 are installed at the bottom of the bearing plate 201, and a spring 205 and a transmission wheel 204 are respectively arranged at the top and bottom of the double fork arms 203, wherein the double fork arms 203 are movably connected to the bearing plate 201 through rivets, and are limited by the spring 205 with the bearing plate 201, and any transmission wheel 204 is connected to the transmission wheel of the motor 202 through a synchronous belt.

[0021] The purpose of the water spraying mechanism 301 is to break the foam floating on the water surface by spraying water, thereby reducing the amount of foam. This is a physical defoaming method that can solve the foam problem, but a small amount of filamentous bacteria may still exist on the surface of the water. Therefore, it is necessary to extract the foam through the suction mechanism 302 to reduce the microbial content and reduce the COD in the sedimentation tank by physical means.

[0022] See also Figure 1-3 As shown, the water spray mechanism 301 is composed of a lift pump 311 , a water tank 312 and a spray pipe 313 , wherein the water tank 312 is connected to the inside of the water tank 312 via a hose, and the spray pipe 313 is arranged in a linear array along the outside of the water tank 312 .

[0023] As an example, it should be noted that the lifting pump 311 delivers external clean water or water mixed with a defoaming agent into the water tank 312, and then the water tank 312 forms a water column through the end of the nozzle 313, which drips on the foam on the surface of the sedimentation tank 1 to defoam. The low pressure of the water column ensures that the bubbles are broken without generating more foam. The nozzle 313 is made of plastic material and can be bent to a certain extent, so that it can be adjusted in height and angle.

[0024] Please refer to Figure 4 As shown, the suction mechanism 302 is composed of a steering column 321, a rotating shaft 322, a suction port 323, a plug 324, a one-way valve 325, a filter plug 326, a suction chamber 327 and a suction pump 329. The steering column 321 is connected to the bottom of the auxiliary frame 3. The suction chamber 327 is connected to the inner side of the steering column 321 through the rotating shaft 322. The suction port 323 is opened at the end of the suction chamber 327, and the plug 324, the one-way valve 325 and the filter plug 326 are respectively and sequentially arranged on the inner side of the suction port 323; the suction port 323, the plug 324 and the one-way valve 325 are connected and inserted into the suction chamber 327 as a whole, and a sieve 328 is connected to the bottom position of the suction port 323.

[0025] As an example, it should be noted that the suction pump 329 is externally connected to a suction tank, and one end of the suction pump 329 is connected to the suction chamber 327 through a suction pipe. The suction port 323 is moved by the rotating shaft 322 to be located on the surface of the liquid level in the sedimentation tank 1. When the suction chamber 327 is under negative pressure, the foam moves toward the plug 324 through the suction port 323, and enters the suction chamber 327 through the one-way valve 325 and the filter plug 326 in turn. The one-way valve 325 can prevent the liquid in the suction chamber 327 from flowing back, and the filter plug 326 can filter impurities to prevent blockage. At the same time, the suction port 323, the plug 324 and the one-way valve 325 can be tightly plugged in and out of the suction chamber 327 to facilitate cleaning and maintenance.

[0026] like Figure 1-2As shown, a support rod is provided at the center position of the bottom of the auxiliary frame 3 and the bottom of the sedimentation tank 1; a limiting wheel 206 is installed on the inner side of the bottom of the auxiliary frame 3 close to the suction mechanism 302, and the limiting wheel 206 and the transmission wheel 204 are respectively kept in contact with the inner and outer side walls of the sedimentation tank 1.

[0027] The top end of the above-mentioned support rod is thinner, and bearings are installed at the top position of the auxiliary frame 3 and the support rod, which can support the auxiliary frame 3 to rotate. The contact position between the limiting wheel 206 and the transmission wheel 204 and the sedimentation tank 1 has grooves, which can increase the wall-grasping effect. The transmission wheel 204 is connected to the transmission wheel of the motor 202 through a synchronous belt. When the synchronous belt is placed horizontally, it can maintain a good transmission effect. The spring 205 is in a compressed state. The spring 205 in the compressed state has an elastic potential that causes the double fork arm 203 to expand outward, so that it is clamped with the outer wall of the sedimentation tank 1. The bracket of the limiting wheel 206 is elastic. When the transmission wheel 204 rotates, the support rod in the center of the sedimentation tank 1 is taken as the center of the circle, and the defoaming device 2 is driven by the transmission wheel 204 to rotate, thereby realizing a cyclic defoaming treatment.

[0028] In summary, the floating object suction device for the sewage treatment pool described in the utility model, the cooperation of the water spraying mechanism and the suction mechanism in this application can not only realize the basic defoaming steps, but also can extract the defoaming agent reacted on the surface and the floating filamentous bacteria, thereby reducing the microbial content, and improving the water quality indicators through physical auxiliary means, which is more environmentally friendly.

[0029] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here; it should be pointed out that for technical personnel in this field, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent; the protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A floating object suction device for a sewage treatment tank, comprising a sedimentation tank (1), characterized in that: A defoaming device (2) is installed at the edge of the top of the sedimentation tank (1), and the defoaming device (2) comprises a bearing plate (201), a motor (202) and an auxiliary frame (3), wherein the bearing plate (201) is located outside the sedimentation tank (1) and is connected to the auxiliary frame (3) located inside the sedimentation tank (1), and the motor (202) is inverted and passes through the middle and rear position of the bearing plate (201); and a water spraying mechanism (301) and a motor (202) are installed on the upper and lower surfaces of the auxiliary frame (3) respectively. A suction mechanism (302), wherein a symmetrically arranged double fork arms (203) are mounted at the bottom of the carrier plate (201), and springs (205) and drive wheels (204) are respectively arranged at the top and bottom of the double fork arms (203), wherein the double fork arms (203) are movably connected to the carrier plate (201) via rivets, and are limited in position with the carrier plate (201) via the springs (205), and any of the drive wheels (204) is connected to the drive wheel of the motor (202) via a synchronous belt.

2. The floating object suction device for a sewage treatment pool according to claim 1, characterized in that: The water spray mechanism (301) is composed of a lift pump (311), a water tank (312), and a spray pipe (313), wherein the water tank (312) is connected to the inside of the water tank (312) via a hose, and the spray pipe (313) is arranged in a linear array along the outside of the water tank (312).

3. The floating object suction device for a sewage treatment pool according to claim 1, characterized in that: The suction mechanism (302) is composed of a steering column (321), a rotating shaft (322), a suction port (323), a plug (324), a one-way valve (325), a filter plug (326), a suction chamber (327) and a suction pump (329); the steering column (321) is connected to the bottom of the auxiliary frame (3); the suction chamber (327) is connected to the inner side of the steering column (321) via the rotating shaft (322); the suction port (323) is opened at the end of the suction chamber (327); and the plug (324), the one-way valve (325) and the filter plug (326) are respectively and sequentially arranged on the inner side of the suction port (323).

4. The floating object suction device for a sewage treatment pool according to claim 1, characterized in that: Support rods are provided at the center of the bottom of the auxiliary frame (3) and the bottom of the sedimentation tank (1).

5. The floating object suction device for a sewage treatment pool according to claim 1, characterized in that: A limiting wheel (206) is installed on the inner side of the bottom of the auxiliary frame (3) close to the suction mechanism (302), and the limiting wheel (206) and the transmission wheel (204) are respectively in contact with the inner and outer side walls of the sedimentation tank (1).

6. The floating object suction device for a sewage treatment pool according to claim 3, characterized in that: The suction port (323), the plug (324) and the one-way valve (325) are connected and inserted as a whole into the suction cavity (327), and the bottom of the suction port (323) is connected with a sieve wool (328).

Images