CN113023945B - Municipal sewage treatment device - Google Patents

Abstract

The invention relates to the technical field of sewage treatment, in particular to a municipal sewage treatment device, which comprises a box body, wherein a purifying net is arranged in the box body and is used for transversely partitioning the box body into a screening cavity and a mixing cavity; a screen is arranged in the screening cavity, and a impurity removing structure for removing impurities is arranged on the side wall of the screening cavity; a driving shaft is arranged in the box body, penetrates through the mixing cavity and then enters the screening cavity, and is movably connected with the screen mesh through a threaded structure and drives the screen mesh to deform upwards or downwards; the part of the driving shaft, which is positioned in the mixing cavity, is provided with a mixing structure, and the driving shaft is also connected with the driver and is in positive and reverse rotation under the action of the driver. The box body structure disclosed by the invention can treat sewage on the premise of not changing the junction in the box body and not disassembling the filter screen, and is convenient for cleaning and removing impurities, so that the sewage treatment efficiency is improved, the working stability of a sewage treatment device is ensured, and the service life of the sewage treatment device is prolonged.

Description

Municipal sewage treatment device

Technical Field

The invention relates to the technical field of sewage treatment, and in particular to a municipal sewage treatment device.

Background technique

Municipal subjects act on municipal political subjects and their processes. In a broad sense, municipal refers to the various management activities and processes of the city's political party organizations and state power organs to achieve the political, economic, cultural and social development of the city itself and the country. In a narrow sense, municipal refers to the management activities and processes of the city's state administrative organs on various administrative affairs and social public affairs within the city's jurisdiction. Sewage usually refers to the discharged water from life and production that is polluted to a certain extent. Sewage mainly includes domestic sewage, industrial wastewater and initial rainwater. The main pollutants in sewage are pathogen pollutants, oxygen-consuming pollutants, plant nutrients and toxic pollutants. From the perspective of sewage sources, sewage can be defined as liquid or water carrying waste discharged from residential, institutional, commercial or industrial areas and mixed with groundwater, surface water and blizzards. Sewage consists of many categories, and there are also many technologies and processes to reduce the impact of sewage on the environment.

Chinese utility model CN212102347U proposes "a municipal sewage treatment device". The main technical problem solved by this device is that the existing sewage contains a large amount of solid impurities. A screen is preset in the treatment device to filter the impurities in the sewage. However, over time, the impurities will accumulate on the screen. However, the existing screen is not convenient to install and disassemble, which affects the working efficiency of the device to a certain extent.

Therefore, there are areas in the existing sewage treatment device structure that need to be improved urgently. The sewage treatment device needs to be optimized and improved to meet the control of air flow rate. Therefore, a more reasonable technical solution needs to be proposed to solve the deficiencies in the existing technology.

Summary of the invention

In order to solve the defects of the prior art mentioned above, the present invention provides a municipal sewage treatment device, which filters the sewage, screens out solid particle impurities in the sewage, and removes the solid particle impurities to the outside through a specific pipe, thereby reducing the accumulation of impurities in the filtering structure in the device, and greatly improving the filtering effect of the sewage treatment device.

In order to achieve the above object, the technical solution specifically adopted by the present invention is:

A municipal sewage treatment device comprises a box body, a purification net is arranged inside the box body, and the purification net divides the box body horizontally into an upper screening chamber and a lower mixing chamber; a screen is arranged in the screening chamber, the outer edge of the screen is connected and fixed to the inner wall of the screening chamber, and a debris removal structure for removing impurities is arranged on the side wall of the screening chamber; a driving shaft is arranged in the box body, and the driving shaft passes through the mixing chamber from the bottom of the box body to enter the screening chamber, and the part of the driving shaft located in the screening chamber is movably connected with the screen through a threaded structure and drives the screen to deform upward or downward; the part of the driving shaft located in the mixing chamber is provided with a mixing structure, and the driving shaft is also connected to a driver and rotates forward and reversely under the action of the driver.

The sewage treatment device disclosed above adds sewage to be treated into the screening chamber through a feed structure, and uses a screen to preliminarily filter impurities in the sewage to prevent particles larger than the size of the screen from passing through the gaps and entering the mixing chamber; when impurities accumulate in the screening chamber, they are cleaned through the feed structure and swept into the impurity removal structure to remove the impurities and restore the filtering capacity of the screen.

Furthermore, the impurity discharge structure used in the present invention can adopt a variety of channel structures that can discharge impurities. Here, it is optimized and one of the feasible options is cited: the impurity discharge structure includes an impurity discharge pipe flush with the outer edge of the screen, the upper end of the impurity discharge pipe is connected to the inside of the screening cavity, and an impurity collection box is provided at the lower end of the impurity discharge pipe. When such a solution is adopted, the impurities in the screening cavity can be swept into the impurity discharge pipe, and the impurities fall from the impurity discharge pipe into the impurity collection box below.

Furthermore, the thread structure disclosed in the present invention is used to adjust the overall angle of the screen, and can make the connection between the screen and the screw rise or move downward, so as to adjust the screen, which is convenient for filtering impurities and subsequent cleaning. The specific thread structure can be set in a variety of forms, which is not limited to a single form. Here, an optimized setting is made and one feasible solution is given: the thread structure includes an internal thread sleeve, and the part of the drive shaft located in the screening chamber is provided with an external thread and cooperates with the internal thread sleeve. The internal thread sleeve is fixedly connected to the screen, and when the drive shaft rotates, the internal thread sleeve is axially displaced along the drive shaft and drives the screen to deform. When such a solution is adopted, the drive shaft rotates, and due to the structure of the thread cooperation, the internal thread sleeve moves along the axis on the drive shaft, thereby driving the screen to deform.

Furthermore, since the screen used in the present invention needs to be deformed while maintaining filtering performance, the structure of the screen must also remain stable during repeated deformation. Here, an optimization is performed and one feasible option is given: the screen includes a plurality of hinged meshes, and the meshes are hinged to the internal threaded sleeve. When such a solution is adopted, when the internal threaded sleeve moves up or down along the driving shaft, the hinged structure between the mesh and the internal threaded sleeve and the hinged structure between the meshes can allow the screen to deform, and the structure of a single mesh does not change, and the filtration aperture does not change, thereby greatly ensuring the reliability of the screen.

Furthermore, in order to facilitate the addition of sewage, the structure of the box is optimized. Here is one feasible option: the box is provided with a plurality of feed structures corresponding to the screening chamber. When such a solution is adopted, the feed structure may include a plurality of feed holes, some of which are used to add sewage, and some of which are used to add purifiers and other substances used for sewage treatment, thereby improving the effect of sewage treatment.

Furthermore, the treated sewage needs to be discharged from the box, so the structure of the box is optimized. Here is one feasible solution: the box is provided with a plurality of discharge structures corresponding to the mixing chamber.

Furthermore, the discharge structure is arranged on the side wall of the mixing chamber, and the discharge structure includes a plurality of discharge holes. When arranged in this way, the sewage treated by the screen and the purification net enters the mixing chamber, is treated by the mixing structure, and then discharged from the discharge holes.

Furthermore, the mixing structure at least includes mixing blades that rotate synchronously with the driving shaft.

Furthermore, the driver includes a forward and reverse motor, and the output shaft of the forward and reverse motor is connected to the driving shaft. When this solution is adopted, the forward and reverse motor rotates forward or reverse, thereby driving the driving shaft to rotate forward or reverse, so that the internal thread sleeve moves up or down, thereby driving the screen to deform.

Furthermore, in order to better place the drive device, the structure of the box is optimized. Here is one feasible option: the lower part of the box is also provided with a drive cavity, and the drive is arranged in the drive cavity; the drive cavity is provided with a heat dissipation structure, and the driver is provided with a heat sink. When such a solution is adopted, the heat sink helps the driver to dissipate heat, ensuring the stability and reliability of the driver after long-term operation.

Furthermore, in order to better control the whole, a controller is provided on the box, and a sensor for detecting the convexity and concavity of the screen is provided on the box, the sensor is electrically connected to the controller, and the controller is used to control the forward and reverse rotation of the driver to make the screen deform convexly and concavely within a limited range. When such a scheme is adopted, the sensor senses the position of the internal thread sleeve, and when the distance between the internal thread sleeve and the sensor reaches a set value, the controller sends a command to control the driver to change the running direction.

Compared with the prior art, the present invention has the following beneficial effects:

The present invention optimizes the structure inside the box, filters the sewage entering the box, filters the impurities and retains them on the screen, and removes them through the impurity removal structure. The box structure disclosed by the present invention can treat the sewage without changing the internal structure of the box and without disassembling the filter, and is convenient for cleaning and removing impurities, thereby improving the efficiency of sewage treatment, ensuring the working stability of the sewage treatment device, and increasing the service life of the sewage treatment device.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only represent some embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

FIG. 1 is a schematic diagram of the cross-sectional structure of the processing device when viewed from the front.

FIG. 2 is a schematic diagram of the cross-sectional structure inside the screening chamber.

In the above drawings, the meanings of the various marks are: 1. Box body; 11. Feed structure; 2. Purification net; 3. Drive chamber; 4. Drive device; 5. Drive shaft; 51. Mixing structure; 6. Internal threaded sleeve; 61. Screen; 7. Sensor; 8. Drain pipe; 81. Collecting box.

Detailed ways

The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. The specific structure and function details disclosed herein are only used to describe the exemplary embodiments of the present invention. However, the present invention can be embodied in many alternative forms, and it should not be understood that the present invention is limited to the embodiments set forth herein.

Example

The existing sewage treatment device needs to dismantle the filter screen for separate cleaning after sewage treatment, which is complicated to operate, inconvenient to improve sewage treatment efficiency, and the reliability of the sewage treatment device cannot be guaranteed. This embodiment proposes a sewage treatment device to solve the problems existing in the prior art.

Specifically, the technical solution disclosed in this embodiment is as follows:

A municipal sewage treatment device comprises a housing 1, wherein a purification net 2 is arranged inside the housing 1 and the purification net 2 transversely divides the housing 1 into an upper screening chamber and a lower mixing chamber; a screen 61 is arranged inside the screening chamber, the outer edge of the screen 61 is connected and fixed to the inner wall of the screening chamber, and a removal structure for removing impurities is arranged on the side wall of the screening chamber; a drive shaft 5 is arranged inside the housing 1, and the drive shaft 5 passes through the mixing chamber from the bottom of the housing 1 from bottom to top and then enters the screening chamber, and the portion of the drive shaft 5 located in the screening chamber is movably connected to the screen 61 through a threaded structure and drives the screen 61 to deform upwardly or downwardly; a mixing structure 51 is arranged on the portion of the drive shaft 5 located in the mixing chamber, and the drive shaft 5 is also connected to a driver and rotates forward and reversely under the action of the driver.

The sewage treatment device disclosed above adds sewage to be treated into the screening chamber through the feed structure 11, and uses the screen 61 to preliminarily filter the impurities in the sewage, thereby preventing particles larger than the size of the screen 61 from passing through the gaps and entering the mixing chamber; when impurities accumulate in the screening chamber, they are cleaned through the feed structure 11, and the impurities are swept into the impurity removal structure to remove the impurities, thereby restoring the filtering capacity of the screen 61.

Preferably, the purification net 2 is an activated carbon filter or a bamboo charcoal filter.

By using either the activated carbon filter or the bamboo charcoal filter, the purification efficiency of the purification net 2 can be effectively improved, and after the impurities are screened, a certain purification effect can be achieved.

In some embodiments, the impurity discharge structure may adopt a variety of channel structures capable of discharging impurities; this embodiment is optimized and adopts one of the feasible options: the impurity discharge structure includes an impurity discharge pipe 8 flush with the outer edge of the screen 61, the upper end of the impurity discharge pipe 8 is connected to the inside of the screening cavity, and an impurity collection box 81 is provided at the lower end of the impurity discharge pipe 8. When such a solution is adopted, the impurities in the screening cavity can be swept into the impurity discharge pipe 8, and the impurities fall from the impurity discharge pipe 8 into the impurity collection box 81 below.

Preferably, the impurity discharge pipe 8 in this embodiment is set to an inverted L shape, and the horizontal section is connected to the inside of the screening chamber, and the vertical section is downwardly connected to the impurity collection box 81. At the same time, an "L" hook is provided on the outer wall of the box body 1, and the impurity collection box 81 is provided on the hook. The impurity collection box 81 plays a role in collecting solid impurities, and by providing a hook, the impurity collection box 81 can be hung on the hook, which is convenient for the staff to take.

When the screen 61 is convex upward or concave downward, impurities can easily slide from the screen 61 to the impurity discharge pipe 8, thereby preventing the impurities from remaining on the screen 61.

The thread structure disclosed in this embodiment is used to adjust the overall angle of the screen 61, so that the connection between the screen 61 and the screw can be raised or moved downward, thereby adjusting the screen 61 to facilitate the filtration of impurities and subsequent cleaning. In some embodiments, the specific thread structure can be set in a variety of forms, which are not limited to the only one. This embodiment is optimized and one of the feasible solutions is adopted: the thread structure includes an internal thread sleeve 6, the part of the drive shaft 5 located in the screening chamber is provided with an external thread and cooperates with the internal thread sleeve 6, the internal thread sleeve 6 is fixedly connected to the screen 61, and when the drive shaft 5 rotates, the internal thread sleeve 6 is axially displaced along the drive shaft 5 and drives the screen 61 to deform. When such a solution is adopted, the drive shaft 5 rotates, and due to the structure of the threaded matching, the internal thread sleeve 6 moves along the axis on the drive shaft 5, thereby driving the screen 61 to deform.

Since the screen 61 used in this embodiment needs to be deformed while maintaining filtering performance, the structure of the screen 61 must also remain stable during repeated deformation, and optimization is performed here, and one feasible option is given: the screen 61 includes a plurality of hinged meshes, and the meshes are hinged to the internal threaded sleeve 6. When such a solution is adopted, when the internal threaded sleeve 6 moves up or down along the driving shaft 5, the hinged structure between the meshes and the internal threaded sleeve 6 and the hinged structure between the meshes can allow the screen 61 to deform, and the structure of a single mesh does not change, and the filtration aperture does not change, thereby greatly ensuring the reliability of the screen 61.

In this embodiment, the box body 1 is configured to be square in shape, and the screen 61 is correspondingly configured to be square in shape. The screen 61 can be configured to be composed of two rectangular meshes or four triangular meshes.

Preferably, in order to facilitate the addition of sewage, the structure of the box 1 is optimized, and one feasible option is given here: a plurality of feed structures 11 corresponding to the screening chamber are provided on the box 1. When such a solution is adopted, the feed structure 11 may include a plurality of feed holes, some of which are used to add sewage, and some of which are used to add purifiers and other substances used for sewage treatment, thereby improving the effect of sewage treatment.

Preferably, in the present embodiment, two feed holes are provided, one feed hole is used for the entry of sewage, and the other feed hole is used for adding substances such as water purifiers.

The treated sewage needs to be discharged from the box 1, so the structure of the box 1 is optimized. Here is one feasible solution: the box 1 is provided with a plurality of discharge structures corresponding to the mixing chamber.

Preferably, the discharge structure is arranged on the side wall of the mixing chamber, and the discharge structure includes a plurality of discharge holes. When arranged in this way, after the sewage treated by the screen 61 and the purification net 2 enters the mixing chamber, it is treated by the mixing structure 51 and then discharged from the discharge holes.

In this embodiment, the mixing structure 51 at least includes mixing blades that rotate synchronously with the drive shaft 5. After the sewage enters the mixing chamber, a water purifier or a mixed agent can be added to the sewage, and the sewage can be fully mixed by the rotation of the mixing blades, and then discharged after being fully mixed.

In this embodiment, the driver includes a forward and reverse motor, and the output shaft of the forward and reverse motor is in driving connection with the driving shaft 5. When this solution is adopted, the forward and reverse motor rotates forward or reversely, thereby driving the driving shaft 5 to rotate forward or reversely, so that the internal thread sleeve 6 moves up or down, thereby driving the screen 61 to deform.

In order to better place the drive device 4, the structure of the box 1 is optimized, and one feasible option is given here: the lower part of the box 1 is also provided with a drive cavity 3, and the driver is arranged in the drive cavity 3; a heat dissipation structure is provided on the drive cavity 3, and a heat sink is provided on the driver. When such a solution is adopted, the heat sink helps the driver to dissipate heat, ensuring the stability and reliability of the driver after long-term operation.

Preferably, the heat sink is a metal heat sink, and a heat dissipation port is provided on the driving cavity 3, and a dustproof net is provided at the heat dissipation port.

In order to better control the whole, the box 1 is provided with a controller, and a sensor 7 for detecting the convexity and concaveness of the screen 61 is provided on the box 1. The sensor 7 is electrically connected to the controller, and the controller is used to control the forward and reverse rotation of the driver to make the screen 61 convex and concave within a limited range. When such a scheme is adopted, the sensor 7 senses the position of the internal thread sleeve 6, and when the distance between the internal thread sleeve 6 and the sensor 7 reaches a set value, the controller sends a command to control the driver to change the running direction.

Preferably, in this embodiment, an infrared distance sensor 7 is used, and a PLC is used as a controller.

In specific applications, the working principle of the processing device is as follows:

The staff introduces the sewage to be cleaned into the box 1 through the feeding structure 11, and filters the solid impurities in the sewage through the screen 61 structure. At this time, the screen 61 structure is in a "V" shape, and the filtered sewage flows into the mixing chamber through the purification net 2. At this time, the staff starts the forward and reverse motors, and the forward and reverse motors drive the transmission shaft to operate. When the transmission shaft is running, it will drive the mixing leaves to process the sewage. During the processing, the staff can add neutralizing liquid through the feeding port at any time. When the forward and reverse motors are in the forward rotation process, it will drive the threaded block in the screening chamber to rotate in the transmission. The screen 61 moves upward on the axis. Since an infrared ranging probe is installed in the screening chamber, when the infrared ranging probe detects that the thread block is too close, the screen 61 mechanism presents an inverted "V", and the solid impurities on the screen 61 roll down into the impurity guiding pipe and flow into the impurity collecting barrel. The detection result of the infrared ranging probe is transmitted to the controller, and the controller controls the forward and reverse motors to reverse, thereby driving the thread block to move downward. By controlling the forward and reverse rotation of the forward and reverse motors, the material guiding effect can be achieved. The screen 61 has a certain deformation ability, which can effectively extend its service life.

The above are the implementation methods listed in this embodiment, but this embodiment is not limited to the above optional implementation methods. Those skilled in the art can arbitrarily combine the above methods to obtain other various implementation methods. Anyone can derive other various forms of implementation methods under the inspiration of this embodiment. The above specific implementation methods should not be understood as limiting the scope of protection of this embodiment. The scope of protection of this embodiment shall be based on the definition in the claims, and the description can be used to interpret the claims.

Claims (6)

1. A municipal sewage treatment device, characterized in that it comprises a housing (1), a purification net (2) is arranged inside the housing (1), and the purification net (2) divides the housing (1) transversely into an upper screening chamber and a lower mixing chamber; a screen (61) is arranged inside the screening chamber, the outer edge of the screen (61) is connected and fixed to the inner wall of the screening chamber, and a removal structure for removing impurities is arranged on the side wall of the screening chamber; a drive shaft (5) is arranged inside the housing (1), the drive shaft (5) passes through the mixing chamber from the bottom to the top from the bottom of the housing (1) and then enters the screening chamber, the part of the drive shaft (5) located in the screening chamber is movably connected to the screen (61) through a threaded structure and drives the screen (61) to deform upward or downward; the part of the drive shaft (5) located in the mixing chamber is provided with a mixing structure (51), and the drive shaft (5) is also connected to a driver and rotates forward and reverse under the action of the driver; The impurity discharge structure comprises an impurity discharge pipe (8) flush with the outer edge of the screen (61), the upper end of the impurity discharge pipe (8) is connected to the interior of the screening chamber, and a impurity collecting box (81) is provided at the lower end of the impurity discharge pipe (8); The thread structure comprises an internal thread sleeve (6), a portion of the drive shaft (5) located in the screening chamber is provided with an external thread and cooperates with the internal thread sleeve (6), the internal thread sleeve (6) is fixedly connected to the screen (61), and when the drive shaft (5) rotates, the internal thread sleeve (6) is axially displaced along the drive shaft (5) and drives the screen (61) to deform; The screen (61) comprises a plurality of hinged mesh pieces, and the mesh pieces are hinged to the internal threaded sleeve (6); The box (1) is provided with a controller, and a sensor (7) for detecting the degree of convexity and concavity of the screen (61) is provided on the box (1). The sensor (7) is electrically connected to the controller, and the controller is used to control the forward and reverse rotation of the driver so that the screen (61) undergoes convex and concave deformation within a limited range. 2. The municipal sewage treatment device according to claim 1, characterized in that: the box body (1) is provided with a plurality of feed structures (11) corresponding to the screening chamber. 3. The municipal sewage treatment device according to claim 1, characterized in that: the box body (1) is provided with a plurality of discharge structures corresponding to the mixing chamber. 4. The municipal sewage treatment device according to claim 1, characterized in that the mixing structure (51) comprises at least a mixing blade that rotates synchronously with the driving shaft (5). 5. The municipal sewage treatment device according to claim 1, characterized in that: the driver comprises a forward and reverse motor, and the output shaft of the forward and reverse motor is drivingly connected to the drive shaft (5). 6. The municipal sewage treatment device according to claim 5 is characterized in that: a driving cavity (3) is further provided at the lower part of the housing (1), and the driver is arranged in the driving cavity (3); a heat dissipation structure is provided on the driving cavity (3), and a heat dissipation element is provided on the driver.