CN210855309U - Grid dirt separator and rinse-system thereof - Google Patents

Abstract

The utility model relates to a sewage treatment field, concretely relates to grid sewage removing machine and rinse-system that has thereof. The flushing system comprises an oxalic acid flushing system arranged at the middle lower part of the inner side of a chain of the grid sewage removing machine and an outer flushing system arranged at the top of the outer side of the chain of the grid sewage removing machine; the oxalic acid flushing system comprises an oxalic acid flushing main pipe, and a dosing tank and a dosing pump which are connected with the oxalic acid flushing main pipe; the outer flushing system comprises an outer flushing main pipe, an external water pipe connected with the outer flushing main pipe, and an outer flushing electromagnetic valve arranged on the external water pipe. The utility model is provided with the oxalic acid washing system and the external washing system which are combined, and realizes the descaling and cleaning of the calcified scale layer and the traditional slag by utilizing the chemical reaction of the oxalic acid and the calcified scale layer and the double functions of the external washing; by optimizing the installation positions of the oxalic acid flushing system and the external flushing system, the overall effects of dirt and scale removal are improved, and the operation stability of the oxalic acid flushing system is improved; by applying the flushing system, the running time of the grid screen plate is longer, and the trash blocking effect is better.

Description

Grid dirt separator and rinse-system thereof

Technical Field

The utility model relates to a sewage treatment field, concretely relates to grid sewage removing machine and rinse-system thereof.

Background

The grid plate type internal inflow grid is novel efficient grid decontamination equipment integrating trash blocking and decontamination, and is compact in structure, small in size, high in slag intercepting efficiency and reliable in operation. More and more sewage treatment plants apply the internal inflow grille to the pretreatment stage, and the internal inflow grille can be used as a fine grille, an ultrafine grille and a membrane grille according to different sizes of water passing apertures. The grid mesh plate has the following problems in practical use: the slag on the screen plate is not washed cleanly, so that the flow is reduced due to the blockage of the water passing hole; fibrous slag is wound on the screen plate and cannot be removed by normal washing, so that blockage is caused; the components in the sewage make the screen plate easily scale, so that the screen plate is blocked.

The mode of mainly adopting the frame outside of grid de-dirt machine to wash the grid otter board among the prior art sets up outer washing unit, however in the in-service use, even through washing outward, nevertheless use the back for a long time, easily form incrustation scale calcification layer in the mesh plate hole of grid otter board, reduce the excessive water yield of mesh plate. At present, oxalic acid is sprayed mainly in a regular manual mode, but due to the limitation of operation conditions, the oxalic acid is sprayed on the outer side face of the screen plate manually, a layer of adhered calcified dirt still adheres to the inner side surface and the stainless steel surface of the screen plate, the water passing effect of the grid screen plate is also affected, and practices prove that the calcified dirt is more easily formed on the inner side surface of the screen plate due to the effects of external washing and gravity.

Therefore, it is urgently needed to develop a flushing system which can effectively remove the calcified dirt layer formed by the long-term operation of the screen plate and realize the deep cleaning of the grid screen plate so as to improve the dirt removing efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at: to the problem that above-mentioned exists, provide a grid scrubbing machine and use the rinse-system in grid scrubbing machine, combine oxalic acid rinse-system and outer rinse-system, effectively get rid of the traditional impurity and the calcification dirt of grid otter board, avoid the jam of grid otter board.

The technical scheme of the utility model is like this:

a flushing system applied to a grid sewage removing machine comprises an oxalic acid flushing system arranged at the middle lower part of the inner side of a chain of the grid sewage removing machine and an outer flushing system arranged at the top of the outer side of the chain of the grid sewage removing machine; the oxalic acid flushing system comprises an oxalic acid flushing main pipe, a dosing tank and a dosing pump which are connected with the oxalic acid flushing main pipe, wherein an oxalic acid flushing nozzle is arranged on the oxalic acid flushing main pipe; the outer washing system comprises an outer washing main pipe and a high-pressure water pipe connected with the outer washing main pipe, the high-pressure water pipe is connected with a centrifugal pump, an outer washing electromagnetic valve is installed on a pipeline of the high-pressure water pipe, and an outer washing nozzle is installed on the outer washing main pipe.

Further, the outer flushing system is arranged at the rear end of the oxalic acid flushing system along the running direction of the grid mesh plate in the grid sewage disposal machine.

Preferably, the outer washing main pipe is arranged in the center of the top of the grid sewage removing machine, the placement direction of the outer washing main pipe is parallel to the placement direction of the grid screen plate in the grid sewage removing machine, and the installation direction of the outer washing nozzle is perpendicular to the top surface of the grid sewage removing machine.

Preferably, the oxalic acid flushing system is arranged below a slag collecting groove of the grating dirt removing machine, and the installation direction of the oxalic acid flushing nozzle is perpendicular to the surface of a grating screen plate in the vertical direction during operation.

With oxalic acid rinse-system priority setting, spout the hole and the surface of otter board with the oxalic acid when the grid otter board is vertical placing, the hole deposit of oxalic acid in grid otter board inside or along the mixture of calcification dirt of otter board inboard surface that flows for oxalic acid make full use of can strengthen the reaction effect of oxalic acid, can not cause the waste. The outer washing system is arranged in the center of the top of the grid sewage disposal machine, after the screen plate reaches the top, the washing water at the top is flushed into the inner side of the screen plate along the screen plate hole from the outer side of the screen plate, the slag on the inner side of the screen plate is downwards flushed, the slag is easier to separate from the screen plate under the action of gravity, and the adhesion of the calcified dirt layer on the screen plate and the residue after dissolution of oxalic acid reaction is reduced, so that the screen plate is easy to drop under the action of the impulsive force and the gravity. The oxalic acid washing nozzle and the outer washing nozzle are perpendicular to the plate surface, and the spraying effect of liquid can be enhanced.

In addition, set up oxalic acid rinse-system in the collection sediment groove below of grid sewage disposal machine for wash the sediment thing that drops at the top and can not drop to oxalic acid rinse-system in cause the jam of oxalic acid washing nozzle.

Further, the outer flushing nozzles are uniformly distributed on the outer flushing main pipe at intervals. Furthermore, the oxalic acid flushing nozzles are uniformly distributed on the oxalic acid flushing main pipe at intervals. The uniform spraying enhances the flushing effect.

Further, a dosing pump of the oxalic acid flushing system is connected with the PLC control system. The PLC control has high automation and flexibility, can set the oxalic acid washing period, and controls the moving speed of the chain of the grid sewage disposal machine so as to control the stay time of the oxalic acid on the grid screen plate.

Furthermore, the oxalic acid flushing main pipe is more than 1 in number, is connected with a pipeline of the medicine pump in a parallel connection mode, and is vertically distributed below a slag collecting groove of the grating dirt removing machine. Can set up many oxalic acids and wash the mode that is responsible for and distributes side by side perpendicularly, improve the efficiency that the oxalic acid was washed.

Furthermore, the flushing system also comprises a filtering device, the filtering device is installed on a pipeline of the high-pressure water pipe, and two ends of the filtering device are provided with manual valves for maintenance. The filtering device can be a laminated filter or a Y-shaped filter and is arranged on a pipeline of the high-pressure water pipe.

Further, the utility model discloses still include a grid de-dirt machine, contain aforementioned rinse-system. The traditional grille decontamination machine mainly comprises a driving device, a frame, a traction chain, a screen plate with a lifting ladder, a flushing system and an electric control cabinet. The driving device drives the traction chain to rotate, the screen plate is placed on the traction chain to rotate correspondingly, and the washing system washes the screen plate.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that: an oxalic acid washing system which can be combined with the external washing system is arranged, and the descaling and cleaning of the calcified scale layer are realized by utilizing the chemical reaction of oxalic acid and the calcified scale layer; by optimizing the installation positions of the oxalic acid flushing system and the external flushing system, the overall effects of dirt and scale removal are improved, and the operation stability of the oxalic acid flushing system is improved; by applying the flushing system, the running time of the grid screen plate is longer, and the trash blocking effect is better.

Drawings

FIG. 1 is a schematic side view of a grille remover;

fig. 2 is a front view schematically showing the grill cleaner.

The labels in the figure are: 1-machine body, 2-traction chain, 3-grid screen plate, 4-oxalic acid flushing main pipe, 5-dosing tank, 6-dosing pump, 7-oxalic acid flushing nozzle, 8-external flushing main pipe, 9-high pressure water pipe, 10-centrifugal pump, 11-external flushing electromagnetic valve, 12-external flushing nozzle, 13-filtering device and 14-slag collecting groove.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-2, a grille remover comprises a driving device, a frame 1, a traction chain 2, a grille screen plate 3 with a lifting ladder and an electric control cabinet, wherein the grille remover comprises the following flushing system. The flushing system comprises an oxalic acid flushing system arranged at the middle lower part of the inner side of the traction chain 2 of the grid sewage removing machine and an external flushing system arranged at the top of the outer side of the traction chain 2 of the grid sewage removing machine; the oxalic acid flushing system comprises an oxalic acid flushing main pipe 4 fixed on the frame 1 through a mounting base, and a dosing tank 5 and a dosing pump 6 which are connected and placed on the outer side of the frame 1, wherein an oxalic acid flushing nozzle 7 is mounted on the oxalic acid flushing main pipe 4; the outer flushing system comprises an outer flushing main pipe 8 and a high-pressure water pipe 9 connected with the outer flushing main pipe, the high-pressure water pipe 9 is connected with a centrifugal pump 10, an outer flushing electromagnetic valve 11 is installed on a pipeline of the high-pressure water pipe 9, and an outer flushing nozzle 12 is installed on the outer flushing main pipe. The flushing system further comprises a filtering device 13, the filtering device 13 is installed on the pipeline of the high-pressure water pipe 9, and manual valves are arranged at two ends of the filtering device 13 and two ends of the centrifugal pump 10 and used for maintenance. The filter device 13 may be a laminated filter. The pipeline of the high-pressure water pipe can be also provided with a pressure gauge for monitoring the water pressure.

The outer washing main pipe 8 is installed in the center of the top of the grid sewage disposal machine through the installation base, the placing direction of the outer washing main pipe 8 is parallel to the placing direction of the grid screen plate 3 in the grid sewage disposal machine, and the installation direction of the outer washing nozzle 12 is perpendicular to the top surface of the grid sewage disposal machine. The oxalic acid flushing system is arranged below a slag collecting groove 14 of the grating dirt removing machine, and the installation direction of the oxalic acid flushing nozzle 7 is perpendicular to the surface of the grating screen plate 3 in the vertical direction during operation. The outer flushing nozzles 12 are evenly spaced on the outer flushing main pipe 8. Further, the oxalic acid flushing nozzles 7 are uniformly distributed on the oxalic acid flushing main pipe 4 at intervals. And a dosing pump 6 of the oxalic acid flushing system is connected with the PLC control system. And the outer flushing system is arranged at the rear end of the oxalic acid flushing system along the running direction of the grid screen plate 3 in the grid sewage remover.

The utility model discloses an operation process as follows: the driving device drives the traction chain 2 to rotate, the grid screen plate 3 is fixedly placed on the traction chain 2 to rotate correspondingly, and the flushing system flushes the grid screen plate 3. When the grid mesh plate 3 runs for a certain time, the oxalic acid flushing system is started. Grid otter board 3 follows 2 circumference operations of drag chain of grid de-dirt machine, at first through oxalic acid rinse-system, and PLC control system control adds the medicine pump 6 and opens, and on oxalic acid was spouted into grid otter board 3 by oxalic acid washing nozzle 7, the oxalic acid reacts after with the calcification dirt contact and is used for getting rid of the dirt. The PLC control system can control the speed of the traction chain 2 to control the contact residence time of the oxalic acid and the calcified dirt layer. Meanwhile, a centrifugal pump of the external flushing system is started, and when the grid mesh plate 3 runs to the center of the top, the PLC control system controls an external flushing electromagnetic valve 11 of the external flushing system to flush the grid mesh plate 3. Wherein, the outer washing nozzle 12 vertically impacts the front surface of the grid mesh plate 3 for washing the traditional slag and the residual calcified fouling layer after reaction.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a rinse-system for in grid sewage disposal which characterized in that: comprises an oxalic acid flushing system arranged at the middle lower part of the inner side of a chain of the grid sewage removing machine and an external flushing system arranged at the top of the outer side of the chain of the grid sewage removing machine; the oxalic acid flushing system comprises an oxalic acid flushing main pipe, a dosing tank and a dosing pump which are connected with the oxalic acid flushing main pipe, wherein an oxalic acid flushing nozzle is arranged on the oxalic acid flushing main pipe; the outer washing system comprises an outer washing main pipe and a high-pressure water pipe connected with the outer washing main pipe, the high-pressure water pipe is connected with a centrifugal pump, an outer washing electromagnetic valve is installed on a pipeline of the high-pressure water pipe, and an outer washing nozzle is installed on the outer washing main pipe.

2. The irrigation system of claim 1, wherein: and the outer flushing system is arranged at the rear end of the oxalic acid flushing system along the running direction of the grid screen plate in the grid sewage disposal machine.

3. The irrigation system of claim 1, wherein: the outer washing main pipe is arranged in the center of the top of the grid sewage disposal machine, the placing direction of the outer washing main pipe is parallel to the placing direction of the grid screen plate in the grid sewage disposal machine, and the mounting direction of the outer washing nozzle is perpendicular to the top surface of the grid sewage disposal machine.

4. The irrigation system of claim 3, wherein: the outer washing nozzles are uniformly distributed on the outer washing main pipe at intervals.

5. The irrigation system of claim 1, wherein: the oxalic acid flushing system is arranged below a slag collecting groove of the grating dirt removing machine, and the installation direction of the oxalic acid flushing nozzle is perpendicular to the surface of the grating screen plate in the vertical direction during operation.

6. The irrigation system of claim 1, wherein: the oxalic acid flushing nozzles are uniformly distributed on the oxalic acid flushing main pipe at intervals.

7. The irrigation system as recited in any one of claims 1-6, wherein: and a dosing pump of the oxalic acid flushing system is connected with the PLC control system.

8. The irrigation system of claim 1, wherein: the oxalic acid flushing main pipe is more than 1 in number and is connected with a pipeline of the medicine pump in a parallel connection mode, and the oxalic acid flushing main pipe is vertically distributed below a slag collecting groove of the grid sewage disposal machine.

9. The irrigation system of claim 1, wherein: the flushing system also comprises a filtering device, the filtering device is installed on a pipeline of the high-pressure water pipe, and two ends of the filtering device are provided with manual valves for maintenance.

10. A kind of grid cleaner, its characterized in that: a flushing system for use in a grille remover comprising any one of claims 1 to 9.

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