Backwash mechanical grating

Abstract

The utility model belongs to the technical field of water treatment, and particularly discloses a backwashing mechanical grid. Comprising a grating body, and the grating body comprises a conveying part and a cleaning part; the cleaning part is arranged in the cleaning box, a cleaning mechanism is arranged in the cleaning box and comprises a main pipeline and a plurality of cleaning pipes, the cleaning pipes are linearly arranged on the main pipeline in the width direction of the grille body, and a cleaning brush used for cleaning the grille body is arranged in the cleaning box; the collecting box is arranged in the cleaning box and located below the cleaning part. Through the combined action of the cleaning pipe and the cleaning brush, pollutants on the grille body can be blown away and cleaned, accumulation of the pollutants on the mechanical grille is avoided, normal operation of the grille body is effectively guaranteed, and the service life of the mechanical grille is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and in particular to a backwashing mechanical bar. Background Technology

[0002] Mechanical bar screens are continuously and automatically intercept and clean up debris of various shapes in wastewater. They are mostly used in urban wastewater treatment, power plant intakes, and the water supply industry. They are primarily used in the primary treatment of wastewater to collect and clean up some residues and garbage in the wastewater.

[0003] In existing technologies, mechanical bar screens need to use a rake mechanism to scrape away debris after intercepting pollutants in the incoming water. However, some debris, especially fiber and non-woven fabric pollutants, can easily get stuck in the gaps of the bar screen and are difficult to remove, causing the mechanical bar screen to become clogged. The accumulation of debris increases the operating resistance of the bar screen and may even cause it to become completely stuck and unable to work. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a backwashing mechanical bar to solve the problem of clogging of mechanical bar in the prior art.

[0005] To achieve the above and other related objectives, this utility model provides a backwashing mechanical bar, comprising:

[0006] A grid body, the grid body comprising a conveying section and a cleaning section;

[0007] The cleaning box contains a cleaning mechanism, which includes a main pipe and multiple cleaning pipes. The multiple cleaning pipes are arranged linearly along the width direction of the grid body on the main pipe. The cleaning box is equipped with a cleaning brush for cleaning the grid body.

[0008] A collection box is disposed inside the cleaning box, located below the cleaning section.

[0009] Optionally, the grid body is provided with a plurality of filter units, each filter unit including a first filter section and a second filter section, and a receiving cavity is provided between the first filter section and the second filter section, the receiving cavity being inclined.

[0010] Optionally, the cleaning tube has a first air outlet and a second air outlet, the air outlets of the first and second air outlets being in the same direction as the inclination direction of the receiving cavity, and the orientation of the first and second air outlets being opposite to the movement direction of the cleaning part.

[0011] Optionally, the cleaning box is provided with a drive shaft and a driven shaft. The drive shaft is provided with a drive wheel for driving the grid body to rotate. The driven shaft is provided with a driven wheel. The cleaning brush is disposed on the drive wheel. The drive shaft extends out of the cleaning box and is provided with a first gear. The driven shaft extends out of the cleaning box and is provided with a second gear that meshes with the first gear.

[0012] Optionally, the transmission ratio between the first gear and the second gear is 2:1.

[0013] Optionally, the cleaning box is equipped with a motor, the output end of the motor is equipped with a first pulley, the drive shaft is equipped with a second pulley, and a first transmission belt is wound between the first pulley and the second pulley.

[0014] Optionally, a guide groove is provided between the cleaning section and the collection box, and a plurality of crushing rollers are provided in the guide groove. The bottom of the guide groove is provided with an outlet end, which corresponds to the inlet end of the collection box.

[0015] Optionally, the output end of the motor is provided with a third pulley, and one end of one of the crushing rollers extends out of the cleaning box and is provided with a fourth pulley, and a second transmission belt is wound between the third pulley and the fourth pulley.

[0016] Optionally, the cleaning box is provided with a support frame for fixing the cleaning mechanism.

[0017] Optionally, the collection box is equipped with a filter plate, and the cleaning box is equipped with an opening and closing door corresponding to the collection box.

[0018] As described above, the backwashing mechanical bar proposed in this utility model has the following beneficial effects:

[0019] In this embodiment, the conveying section in the bar screen body is used to transport the solids from the solid-liquid separation process in the sewage. After entering the cleaning box, the solids change direction and await cleaning, becoming the cleaning section. The cleaning pipe in the cleaning mechanism is linearly arranged along the width direction of the bar screen body, enabling simultaneous blowing and cleaning of the bar screen. This removes fibers and non-woven fabric contaminants adhering to the bar screen, preventing their accumulation. The cleaning brush and cleaning pipe then help them detach. Compared with existing technologies, this invention, through the combined action of the cleaning pipe and cleaning brush, can blow away and clean contaminants from the bar screen body, preventing contaminant accumulation on the mechanical bar screen, effectively ensuring the normal operation of the bar screen body, and extending the service life of the mechanical bar screen. Attached Figure Description

[0020] Figure 1 The diagram shown is a cross-sectional view of an embodiment of the present invention.

[0021] Figure 2 This is a front view of an embodiment of the present invention;

[0022] Figure 3 The diagram shown is a schematic diagram of the grille body in one embodiment of the present invention;

[0023] Figure 4 The diagram shown is a structural schematic of the cleaning mechanism in one embodiment of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] Cleaning box 1, opening and closing door 101, grille body 2, conveying part 201, cleaning part 202, first filter part 201, receiving cavity 202, second filter part 203, drive shaft 3, drive wheel 4, driven shaft 5, driven wheel 6, cleaning brush 7, first gear 8, second gear 9, main pipe 10, air inlet pipe 11, cleaning pipe 12, first air outlet 1201, second air outlet 1202, support frame 13, guide groove 14, crushing roller 15, collection box 16, filter plate 17, motor 18. Detailed Implementation

[0026] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0027] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show components related to this utility model and are not drawn according to the actual number, shape, and size of the components in implementation. In actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex. The structures, proportions, sizes, etc., shown in the accompanying drawings are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0028] like Figures 1-4 As shown, this utility model proposes a backwashing mechanical bar.

[0029] In one exemplary embodiment, the backwash mechanical bar includes:

[0030] The grid body 2 includes a conveying section 201 and a cleaning section 202.

[0031] Cleaning box 1, cleaning section 202. Inside the cleaning box 1, a cleaning mechanism is provided. The cleaning mechanism includes a main pipe 10 and multiple cleaning pipes 12. The multiple cleaning pipes 12 are arranged linearly on the main pipe 10 along the width direction of the grid body 2. The cleaning box 1 is provided with a cleaning brush 7 for cleaning the grid body 2.

[0032] Collection box 16 is installed inside cleaning box 1, located below cleaning section 202.

[0033] In this embodiment, the conveying section 201 in the bar screen body 2 is used to convey the solids after solid-liquid separation in the sewage. After entering the cleaning box 1, the direction changes, and it becomes the cleaning section 202, waiting to be cleaned. The cleaning pipe 12 in the cleaning mechanism is linearly arranged along the width direction of the bar screen body 2, which can simultaneously blow and clean the bar screen, blowing away the fiber and non-woven fabric pollutants adhering to the bar screen to prevent their accumulation. Under the action of the cleaning brush 7 and the cleaning pipe 12, they are removed. Compared with the prior art, this utility model, through the combined action of the cleaning pipe 12 and the cleaning brush 7, can blow away and clean the pollutants on the bar screen body 2, preventing the accumulation of pollutants on the mechanical bar screen, effectively ensuring the normal operation of the bar screen body 2, and extending the service life of the mechanical bar screen.

[0034] It is worth noting that in this embodiment, the bar screen body 2 is mounted on the cleaning box 1 by a mounting bracket. The left side wall of the cleaning box 1 has an opening for the cleaning part 202 of the bar screen body 2 to enter the cleaning box 1. In this embodiment, the conveying part 201 is in an inclined state, and the cleaning part 202 is in a parallel state. The bar screen body 2 is a rotary bar screen, which performs reciprocating and uninterrupted sewage treatment work.

[0035] In an exemplary embodiment, the grille body 2 is provided with a plurality of filter units, each filter unit including a first filter section 201 and a second filter section 203, and a receiving cavity 202 is provided between the first filter section 201 and the second filter section 203, the receiving cavity 202 being inclined.

[0036] In this embodiment, the first filter section 201 and the second filter section 203 can be used to filter pollutants of different sizes. Larger pollutant particles are located on the first filter section 201, while smaller particles are located in the receiving cavity 202, thereby improving the filtration effect of the grid body 2 and making the sewage treatment effect better.

[0037] For example, in this embodiment, since the cleaning section 202 is arranged in parallel, when the filter unit moves from facing upward to facing downward, the solid pollutants on the first filter section 201 and the small particles in the accommodating cavity 202 will fall through the first filter section 201 to the bottom of the cleaning box 1 for collection, thereby achieving solid separation.

[0038] It is worth noting that in this embodiment, the first filter section 201 and the second filter section 203 work separately to block solid pollutants of different sizes. The dual-layer filtration function makes the water treatment effect better.

[0039] In an exemplary embodiment, the cleaning pipe 12 has a first jet port 1201 and a second jet port 1202. The jet direction of the first jet port 1201 and the second jet port 1202 is the same as the tilt direction of the receiving cavity 202, and the orientation of the first jet port 1201 and the second jet port 1202 is opposite to the movement direction of the cleaning part 202.

[0040] In this embodiment, the main pipe 10 is installed through the cleaning section 202. Therefore, the linearly arranged cleaning pipes 12 are located between the upper conveying section 201 and the lower conveying section 201 of the cleaning section 202. After the grille body 2 enters the cleaning box 1, the first jet nozzle 1201 provided on the cleaning pipe 12 generates a strong airflow to the first filter section 201 and the second filter section 203, causing the pollutants wrapped around the first cleaning section 202 and the second cleaning section 202 to detach. The pollutants located in the receiving cavity 202 adhere to the first filter section 201, and then the pollutants on the first filter section 201 are brushed off by the cleaning brush 7. When the grille body 2 completes its rotation and reaches the lower part (i.e. the lower half of the cleaning section 202), the filter unit rotates as a whole. Just before exiting the cleaning box 1, the second jet nozzle 1202 blows the filter unit again to further improve the cleaning effect.

[0041] In this embodiment, the jet direction of the first jet nozzle 1201 and the second jet nozzle 1202 is the same as the tilt direction of the accommodating cavity 202, so that the airflow can smoothly enter the accommodating cavity 202 and improve the cleaning effect.

[0042] For example, the cleaning box 1 is provided with a support frame 13, which is used to fix the cleaning mechanism. In this embodiment, the support frame 13 is arranged on the inner wall of the cleaning box 1 in the left, right and front and back, and also passes through the cleaning part 202. A pull plate is opened on the rear side wall of the cleaning box 1, and the support frame 13 is set on the pull plate. The pull plate can be pulled out as a whole to repair or replace the cleaning tube 12.

[0043] For example, in this embodiment, the main pipe 10 is also provided with an air inlet pipe 11, and the input end of the air inlet pipe 11 is connected to an air pump to provide high-pressure airflow.

[0044] It is worth noting that in this embodiment, the cleaning tube 12 is arranged in two rows. In order to improve cleaning efficiency and cleaning effect, the number of cleaning tubes 12 can be increased, for example, to three or four rows.

[0045] In an exemplary embodiment, the cleaning box 1 is provided with a drive shaft 3 and a driven shaft 5. The drive shaft 3 is provided with a drive wheel 4 for driving the grid body 2 to rotate. The driven shaft 5 is provided with a driven wheel 6. The cleaning brush 7 is provided on the drive wheel. The drive shaft 3 extends out of the cleaning box 1 and is provided with a first gear 8. The driven shaft 5 extends out of the cleaning box 1 and is provided with a second gear 9 that meshes with the first gear 8.

[0046] In this embodiment, the cleaning brush 7 moves with the grille body 2 through gear transmission, thus forming a synchronous action. When the grille body 2 stops working, the cleaning brush 7 also stops, saving energy.

[0047] For example, the transmission ratio between the first gear 8 and the second gear 9 is 2:1. By changing the transmission ratio, the relative rotational speed between the drive shaft 3 and the driven shaft 5 is altered, so that the rotational speed of the driven shaft 5 is higher than that of the drive shaft 3. Therefore, the cleaning brush 7 can clean the filter unit more efficiently, thus improving the cleaning effect.

[0048] It is worth noting that in this embodiment, the cleaning brush 7 is made of a hard material that can pass through the gap of the first filter section 201 and brush off the contaminants such as fibers and non-woven fabric wrapped around it, so that they are removed from the first filter section 201 and blown out of the first filter section 201 when passing through the second air nozzle 1202.

[0049] In an exemplary embodiment, a motor 18 is provided on the cleaning box 1, a first pulley is provided at the output end of the motor 18, a second pulley is provided on the drive shaft 3, and a first transmission belt is wound between the first pulley and the second pulley.

[0050] In this embodiment, the motor 18 can drive the drive wheel 4 to rotate through the action of the first pulley and the second pulley.

[0051] For example, a guide groove 14 is provided between the cleaning section 202 and the collection box 16. Multiple crushing rollers 15 are arranged within the guide groove 14, and an outlet end is provided at the bottom of the guide groove 14, corresponding to the inlet end of the collection box 16. A third pulley is provided at the output end of the motor 18, and a fourth pulley is provided at one end of one of the crushing rollers 15 extending out of the cleaning box 1. A second transmission belt is wound between the third and fourth pulleys. In this embodiment, the third and fourth pulleys, along with the second transmission belt, enable the motor 18 to drive the crushing rollers 15 to rotate, crushing and collecting solid pollutants carried out by the grid body 2. In this embodiment, the crushing rollers 15 are engaged by gear meshing to achieve synchronous operation.

[0052] It is worth noting that in this embodiment, a single power source (motor 18) can drive the bar screen body 2, cleaning brush 7, and crushing roller 15 to operate synchronously, reducing energy consumption and enabling coordinated actions, thus allowing for timely cleaning of the bar screen body 2 and effective collection of waste materials.

[0053] In one exemplary embodiment, a filter plate 17 is provided inside the collection box 16, and an opening and closing door 101 is provided on the cleaning box 1 corresponding to the collection box 16.

[0054] In this embodiment, a filter plate 17 is provided in the filter box, which can achieve solid-liquid separation again in the filter box. The liquid is located in the lower layer and the solid is located on the filter plate 17. By opening the opening and closing door 101, the collection box 16 can be pulled out. The liquid in the lower layer can be discharged by opening the valve, and the solid in the upper layer can be cleaned by opening the collection box 16.

[0055] In summary, this utility model, through the combined action of the cleaning pipe 12 and the cleaning brush 7, can blow away and sweep away pollutants on the grille body 2, avoid the accumulation of pollutants on the mechanical grille, effectively ensure the normal operation of the grille body 2, and extend the service life of the mechanical grille.

[0056] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A backwashing mechanical bar, characterized in that, include: A grid body, the grid body comprising a conveying section and a cleaning section; The cleaning box contains a cleaning mechanism, which includes a main pipe and multiple cleaning pipes. The multiple cleaning pipes are arranged linearly along the width direction of the grid body on the main pipe. The cleaning box is equipped with a cleaning brush for cleaning the grid body. A collection box is disposed inside the cleaning box, located below the cleaning section.

2. The backwashing mechanical bar according to claim 1, characterized in that: The grid body is provided with a plurality of filter units, each filter unit including a first filter section and a second filter section, and there is a receiving cavity between the first filter section and the second filter section, the receiving cavity being inclined.

3. The backwashing mechanical bar according to claim 2, characterized in that: The cleaning tube has a first air outlet and a second air outlet. The air outlets of the first and second air outlets are in the same direction as the inclination direction of the receiving cavity, and the orientation of the first and second air outlets is opposite to the movement direction of the cleaning part.

4. The backwashing mechanical bar according to claim 1, characterized in that: The cleaning box is equipped with a drive shaft and a driven shaft. The drive shaft is equipped with a drive wheel for driving the grid body to rotate. The driven shaft is equipped with a driven wheel. The cleaning brush is mounted on the drive wheel. The drive shaft extends out of the cleaning box and is equipped with a first gear. The driven shaft extends out of the cleaning box and is equipped with a second gear that meshes with the first gear.

5. The backwashing mechanical bar according to claim 4, characterized in that: The transmission ratio between the first gear and the second gear is 2:

1.

6. The backwashing mechanical bar according to claim 4, characterized in that: The cleaning box is equipped with a motor, the output end of the motor is equipped with a first pulley, the drive shaft is equipped with a second pulley, and a first transmission belt is wound between the first pulley and the second pulley.

7. The backwashing mechanical bar according to claim 6, characterized in that: A guide groove is provided between the cleaning section and the collection box. Multiple crushing rollers are provided in the guide groove. The bottom of the guide groove is provided with an outlet end, which corresponds to the inlet end of the collection box.

8. The backwashing mechanical bar according to claim 7, characterized in that: The motor output end is provided with a third pulley, one end of one of the crushing rollers extends out of the cleaning box and is provided with a fourth pulley, and a second transmission belt is wound between the third pulley and the fourth pulley.

9. The backwashing mechanical bar according to claim 1, characterized in that: The cleaning box is equipped with a support frame, which is used to fix the cleaning mechanism.

10. The backwashing mechanical bar according to claim 1, characterized in that: The collection box is equipped with a filter plate, and the cleaning box is equipped with an opening and closing door corresponding to the collection box.

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