CN220478286U - Water-saving orifice plate grid decontamination presses integrative device - Google Patents

Abstract

The utility model provides a water-saving type orifice plate grating decontamination and squeezing integrated device, which comprises: the main machine of the orifice plate grating is provided with a driving device and the orifice plate grating, and a plurality of net plate openings are uniformly distributed on the orifice plate grating; the screen plate cleaning system comprises a fan and an air knife which are connected through a pipeline, and the air knife is arranged at the upper part of the outer side of the screen plate grid; the grid slag squeezing system comprises a pair of slag blocking plates, a slag groove, a screw shaft and a squeezing pipe, wherein the slag blocking plates are matched with the slag groove and the inner side wall of the orifice plate grid, and are used for collecting grid slag blown down by an air knife into the slag groove, the screw shaft is provided with screw blades, the squeezing pipe is located at the outer side of one end of the screw shaft, and the screw shaft is used for driving the screw blades to push the grid slag collected into the slag groove into the squeezing pipe for squeezing and dewatering. The water-saving type orifice plate grating decontamination and squeezing integrated device adopts the blower and the air knife to purge the grating slag in the openings of the mesh plate and attached to the side wall, solves the problems of high water consumption and large occupied area of a flushing water system, and reduces the cost.

Description

Water-saving orifice plate grid decontamination presses integrative device

Technical Field

The utility model relates to the field of sewage treatment, in particular to a water-saving type orifice plate grating decontamination and squeezing integrated device.

Background

The internal flow type non-metal pore plate grating is an important filtering device in a pretreatment area of a sewage treatment plant, the filtering precision of the internal flow type non-metal pore plate grating comprises 1-6 mm of aperture, the internal flow type non-metal pore plate grating belongs to a fine grating and an ultrafine grating, the stable operation of the internal flow type non-metal pore plate grating needs to continuously clean a screen plate, the water passing capability of the grating is ensured by cleaning grating screen plate openings and grating residues attached to the inner side of the screen plate, and grating residues intercepted by the grating are discharged out of a grating body. Therefore, the water content of the slag-water mixture discharged by the orifice plate grid is higher, and the slag-water mixture is dehydrated and pressed by a screw press to facilitate the treatment of the grid slag.

The orifice plate grid system of present design contains orifice plate grid host computer, grid sparge water system and contains wash water pump, storage water tank, pipeline valve etc. still include screw press, grid to the swift current sediment groove of squeezer etc.. The grid flushing water system provides high-pressure flushing water to flush the outer surface of the grid and the openings of the mesh plates, and the grid slag intercepted by the mesh plates of the grid is flushed to the slag receiving tank, so that the water content of the slag-water mixture discharged by the mesh plates of the mesh plates is higher, and the slag-water mixture is dehydrated and squeezed by a screw squeezer, so that the treatment of the grid slag is facilitated.

The orifice plate grid system of present design receives the external influence great, and wash water system water tank and water pump area are great, and its normal work needs to have stable water supply source, and grid bars sediment need to arrange long distance transport swift current sediment groove etc. to squeezer, because above factors influence and lead to the grid to install in some project application restriction.

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a water-saving type perforated plate grid dirt-removing and squeezing integrated machine, which is used for solving many problems existing in the prior art.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a water-saving type orifice plate grating dirt removing and squeezing integrated device, a screen plate cleaning system of the device adopts a fan and a wind blade to sweep grating slag in openings of the screen plate and attached to the side wall, the problems of high water consumption and large occupied area of a flushing water system are solved, and the cost is reduced.

In order to achieve the above object, the present utility model provides a water-saving type orifice plate grating decontamination and squeezing integrated device, comprising:

the device comprises a pore plate grid host, a driving device and a pore plate grid, wherein a plurality of screen plate openings are uniformly distributed on the pore plate grid, and the driving device is used for driving the pore plate grid to circularly rotate;

the screen plate cleaning system comprises a fan and an air knife which are connected through a pipeline, wherein the air knife is arranged at the upper part of the outer side of the screen plate grid and is used for blowing grid slag adhered to the inner side and the side wall of an opening of the screen plate;

the grid slag squeezing system comprises a pair of slag blocking plates, a slag groove, a screw shaft and a squeezing pipe, wherein the slag blocking plates are matched with the slag groove and the inner side wall of the orifice plate grid, and are used for collecting grid slag blown down by an air knife into the slag groove, the screw shaft is provided with screw blades, the squeezing pipe is located at the outer side of one end of the screw shaft, and the screw shaft is used for driving the screw blades to push the grid slag collected into the slag groove into the squeezing pipe for squeezing and dewatering.

According to the utility model, the orifice plate grille host is also provided with an upper frame, a lower frame, a cover plate and a driving motor;

the upper frame and the lower frame are used for supporting the orifice plate grid host.

The cover plate is used for preventing grid slag blown by the air knife from splashing outside the orifice plate grid main machine.

The driving device comprises a driving shaft, a pair of driving wheels and a pair of driving chains, and the driving wheels are respectively arranged at two ends of the driving shaft.

The driving shaft is arranged at the upper part of the orifice plate grid host.

The driving chains are respectively fixed at two ends of the orifice plate grating, and one ends of the driving chains are matched with one pair of driving wheels and one pair of driving chains for driving the orifice plate grating to circularly rotate.

The driving motor is used for driving the driving shaft to rotate.

According to the utility model, the driving device further comprises a driven shaft and a pair of driven wheels, wherein the driven wheels are respectively arranged at two ends of the driven shaft.

The driven shaft is arranged at the lower part of the orifice plate grid host.

The other ends of the driven wheels and the driving chains are matched and used for driving the orifice plate grating to circularly rotate by matching with the driving wheels.

Preferably, the orifice plate grid host is of a cuboid structure.

Each screen plate has a round or square opening, and the aperture is 1-6 mm.

Preferably, the grid residue squeezing system further comprises a gear motor and a squeezing spindle.

The gear motor is used for driving the pressing main shaft to rotate.

The pressing main shaft is coaxially connected with the screw shaft and is used for driving the screw shaft to rotate.

According to the utility model, the grid residue squeezing system further comprises a U-shaped filter screen plate.

The U-shaped filter screen plate is positioned between the slag groove and the screw shaft and is used for filtering water generated in the pushing and squeezing dehydration process of the grid slag.

According to the utility model, the inner surface of the U-shaped filter screen plate is matched with the spiral blades, and the spiral blades are used for pushing the grid residues collected in the U-shaped filter screen plate to the squeezing tube for squeezing and dewatering.

Preferably, the grid residue squeezing system further comprises a pair of flushing water pipes.

Each flushing pipe is arranged above one slag baffle plate of the pair of slag baffles and is used for flushing the grid slag attached to the corresponding slag baffle plate into the slag groove.

Each of the wash water pipes is provided with a plurality of wash water holes.

According to the utility model, the pair of slag baffles are matched with the slag groove in a V shape and are used for collecting the grid slag blown down by the air knife and/or the grid slag flushed by the pair of flushing water pipes into the slag groove.

According to the utility model, the grid residue squeezing system further comprises a reinforcing guide rail, a residue discharging pipe and a residue collecting box.

The reinforcing guide rail is arranged below the slag groove and is used for enhancing the structural strength of the slag groove and reducing the installation difficulty of the slag groove.

The slag discharging pipe is communicated with the squeezing pipe and is positioned at the outer side of the squeezing pipe and used for outputting the squeezed and dehydrated grid slag generated by the squeezing pipe to the slag collecting box.

The utility model has the following effects:

(1) The water-saving type orifice plate grating dirt removing and squeezing integrated device provided by the utility model adopts the fans and the air knives to purge the grating slag adhered to the inner side wall and the side wall of the openings of the orifice plate, solves the problems of high water consumption and large occupied area of a flushing water system, and reduces the cost.

(2) The water-saving type orifice plate grating decontamination and squeezing integrated device provided by the utility model has the advantages that the operation of a screen plate cleaning system adopting a fan and an air knife is more stable, the failure rate is low, and the problem of blockage of flushing water nozzles can be solved.

(3) The water-saving type orifice plate grating decontamination and squeezing integrated device provided by the utility model can reduce the water consumption by 95% by adopting a net plate cleaning system in a purging mode.

(4) The water-saving type orifice plate grating dirt removing and squeezing integrated device provided by the utility model greatly reduces the design, manufacturing, installation and operation costs of a grating system.

(5) The water-saving type orifice plate grating dirt removing and squeezing integrated device provided by the utility model has the advantages that a water pump and a water storage tank of a flushing water system are eliminated, the purchasing and mounting cost is reduced, and the occupied area is reduced.

(6) The water-saving type orifice plate grating dirt removing and squeezing integrated device provided by the utility model has the advantages that the integrated grating slag squeezing system can reduce the grating slag conveying link, reduce the water outlet lifting power consumption of the squeezer and reduce the arrangement space of the squeezer.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular descriptions of exemplary embodiments of the utility model as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the utility model.

Fig. 1 is a schematic front view of a water-saving type orifice plate grid dirt removing and squeezing integrated device provided by the utility model. And (5) a product effect diagram.

Fig. 2 is a schematic side view of a water-saving type orifice plate grid dirt removing and squeezing integrated device provided by the utility model.

Fig. 3 is a schematic diagram of an air knife structure of the water-saving type orifice plate grating dirt-removing and squeezing integrated device.

Fig. 4 is a product effect diagram of the water-saving type orifice plate grating dirt-removing and squeezing integrated device provided by the utility model.

Reference numerals illustrate:

1-upper frame, 2-driving device, 3-screw shaft, 4-squeeze tube, 5-slag discharge tube, 6-orifice plate grid, 7-lower frame, 8-driving motor, 9-flushing water tube, 10-gear motor, 11-squeeze main shaft, 12-slag groove, 13-U-shaped filter screen plate, 14-air knife, 15-slag baffle, 16-reinforced guide rail, 17-fan and 18-slag collecting box.

Detailed Description

Preferred embodiments of the present utility model will be described in more detail below. While the preferred embodiments of the present utility model are described below, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein.

In this disclosure, unless otherwise indicated, terms of orientation such as "upper and lower" are used to generally refer to the upper and lower of the device in normal use, e.g., with reference to the orientation of the drawing of fig. 1, and "inner and outer" are used with respect to the outline of the device. Furthermore, the terms "first, second, third and the like" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first, second, third" may explicitly or implicitly include one or more such feature. In the description of the present disclosure, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The utility model provides a water-saving type orifice plate grating decontamination and squeezing integrated device, as shown in figure 1, comprising:

the device comprises a pore plate grid host, a driving device 2 and a pore plate grid 6, wherein a plurality of screen plate openings are uniformly distributed on the pore plate grid 6, and the driving device 2 is used for driving the pore plate grid 6 to circularly rotate;

the screen cleaning system comprises a fan 17 and an air knife 14 which are connected through pipelines, wherein the air knife 14 is arranged at the upper part of the outer side of the orifice plate grid 6 and is used for blowing grid slag adhered to the inner side and the side wall of an opening of the screen;

the grid slag squeezing system comprises a pair of slag baffle plates 15, a slag groove 12, a spiral shaft 3 and a squeezing tube 4, wherein the slag baffle plates 15 are matched with the slag groove 12 and the inner side wall of the orifice plate grid 6, and are used for collecting grid slag blown down by an air knife 14 into the slag groove 12, the spiral shaft 3 is provided with spiral blades, the squeezing tube 4 is located at the outer side of one end of the spiral shaft 3, and the spiral shaft 3 is used for driving the spiral blades to push the grid slag collected into the slag groove 12 into the squeezing tube 4 for squeezing and dewatering.

In the utility model, the regenerative fan 17 with high working efficiency, small maintenance amount, low noise, low vibration and small high wind pressure is adopted as an air source, and the air knife 14 which is arranged in parallel on the outer side of the orifice plate grating 6 is adopted as a surface cleaning unit of the orifice plate grating 6 instead of a spray rod. The regenerative fan 17 can provide balanced, controllable and high-speed air flow by matching with the water drop type air knife 14, and can effectively blow off the grid slag attached to the inner side of the orifice plate grid 6 and the inside of the opening. The air knife 14 is made of aluminum alloy or stainless steel, and the corrosion resistance can meet the severe sewage treatment environment.

According to the utility model, the orifice plate grille host is also provided with an upper frame 1, a lower frame 7, a cover plate and a driving motor 8;

the upper frame 1 and the lower frame 7 are used for supporting the orifice plate grille main body.

The cover plate is used for preventing the grating slag blown by the air knife 14 from splashing outside the orifice plate grating main machine.

The driving device 2 includes a driving shaft, a pair of driving wheels and a pair of driving chains, and the pair of driving wheels are respectively provided at both ends of the driving shaft.

The driving shaft is arranged at the upper part of the orifice plate grid host.

The pair of driving chains are respectively fixed at two ends of the orifice plate grating 6, and one ends of the pair of driving wheels and the pair of driving chains are matched for driving the orifice plate grating 6 to circularly rotate.

The drive motor 8 is used to drive the drive shaft to rotate.

According to the present utility model, the driving device 2 further includes a driven shaft, a pair of driven wheels, and the driven wheels are respectively disposed at two ends of the driven shaft.

The driven shaft is arranged at the lower part of the orifice plate grid host.

The other ends of the driven wheels and the driving chains are matched and used for driving the orifice plate grating 6 to circularly rotate by matching with the driving wheels.

Preferably, the orifice plate grid host is of a cuboid structure.

Each screen plate has a round or square opening, and the aperture is 1-6 mm.

Preferably, the grid residue squeezing system further comprises a gear motor 10 and a squeezing spindle 11.

The gear motor 10 is used to drive the press spindle 11 to rotate.

The pressing main shaft 11 is coaxially connected with the screw shaft 3, and the pressing main shaft 11 is used for driving the screw shaft 3 to rotate.

According to the utility model, the grid residue squeezing system further comprises a U-shaped filter screen plate 13.

The U-shaped filter screen plate 13 is positioned between the slag groove 12 and the screw shaft 3 and is used for filtering water generated in the process of pushing and squeezing and dewatering the filter screen slag.

The inner surface of the U-shaped filter screen plate 13 is matched with the spiral blades, and the spiral blades are used for pushing the grid residues collected in the U-shaped filter screen plate 13 to the press pipe 4 for press dehydration.

Preferably, the grid residue squeezing system further comprises a pair of wash water pipes 9.

Each flushing pipe 9 is provided above one slag trap 15 of the pair of slag traps 15 for flushing the gate slag attached to the corresponding one of the slag traps 15 into the slag bath 12.

Each of the wash water pipes 9 is provided with a plurality of wash water holes.

According to the present utility model, a pair of slag baffles 15 are engaged with the slag bath 12 in a V-shape for collecting the slag purged from the air knife 14 and/or the slag purged from the pair of flushing pipes 9 into the slag bath 12.

In the utility model, a detachable U-shaped filter screen plate 13 is arranged on a slag groove 12 below a screw shaft 3, and water separated from grid slag in the conveying and squeezing processes is discharged from the U-shaped filter screen plate 13. The left and right slag baffles 15 are provided with a flushing pipe 9, and the grid slag attached to the slag baffles 15 can be flushed into the slag tank 12 by a small amount of low-pressure water flow.

According to the utility model, the purging type mesh plate cleaning system replaces a high-pressure flushing system, so that the mesh plate cleaning system can save 95% of high-pressure flushing water (only the slag plate low-pressure flushing water pipes 9 are reserved at the two sides of the interior of the pore plate grating 6), the purchase cost and the installation cost of the matched equipment of the pore plate grating 6 are reduced, the occupied area is reduced, the failure rate is reduced, and the running cost is reduced.

According to the utility model, the grid residue squeezing system further comprises a reinforcement rail 16, a residue discharge pipe 5 and a residue collection tank 18.

The reinforcing guide rail 16 is arranged below the slag bath 12 and is used for enhancing the structural strength of the slag bath 12 and reducing the installation difficulty of the slag bath 12.

The slag discharging pipe 5 is communicated with the pressing pipe 4 and is positioned outside the pressing pipe 4 and used for outputting the gate slag generated by the pressing pipe 4 after the pressing dehydration to the slag collecting box 18.

In the utility model, the reinforcing guide rails 16 are arranged on the two sides below the grid slag squeezing system, so that the strong structural strength of the slag chute 12 can be enhanced, and the overall installation difficulty can be reduced.

The present utility model will be described in more detail with reference to examples.

Example 1

As shown in fig. 1, this embodiment provides a water-saving type orifice plate grating decontamination and squeezing integrated device, as shown in fig. 1, including:

the device comprises a pore plate grid host, a driving device 2 and a pore plate grid 6, wherein a plurality of screen plate openings are uniformly distributed on the pore plate grid 6, and the driving device 2 is used for driving the pore plate grid 6 to circularly rotate;

the screen cleaning system comprises a fan 17 and an air knife 14 which are connected through pipelines, wherein the air knife 14 is arranged at the upper part of the outer side of the orifice plate grid 6 and is used for blowing grid slag adhered to the inner side and the side wall of an opening of the screen;

the grid slag squeezing system comprises a pair of slag baffle plates 15, a slag groove 12, a screw shaft 3 and a squeezing tube 4, wherein the slag baffle plates 15 are matched with the slag groove 12 and the inner side wall of the orifice plate grid 6, and are used for collecting grid slag blown by an air knife 14 into the slag groove 12, the screw shaft 3 is provided with screw blades, the squeezing tube 4 is positioned at the outer side of one end of the screw shaft 3, and the screw shaft 3 is used for driving the screw blades to push the grid slag collected into the slag groove 12 into the squeezing tube 4 for squeezing and dewatering;

the pore plate grid main machine is also provided with an upper frame 1, a lower frame 7, a cover plate and a driving motor 8;

the upper frame 1 and the lower frame 7 are used for supporting the orifice plate grid host;

the cover plate is used for preventing grid slag blown by the air knife 14 from splashing outside the orifice plate grid main machine;

the driving device 2 comprises a driving shaft, a pair of driving wheels and a pair of driving chains, wherein the driving wheels are respectively arranged at two ends of the driving shaft;

the driving shaft is arranged at the upper part of the orifice plate grid host;

the pair of driving chains are respectively fixed at two ends of the orifice plate grating 6, and one ends of the pair of driving wheels and the pair of driving chains are matched and used for driving the orifice plate grating 6 to circularly rotate;

the driving motor 8 is used for driving the driving shaft to rotate;

the driving device 2 further comprises a driven shaft and a pair of driven wheels, and the driven wheels are respectively arranged at two ends of the driven shaft;

the driven shaft is arranged at the lower part of the orifice plate grid host;

the other ends of the driven wheels and the driving chains are matched and used for driving the orifice plate grating 6 to circularly rotate by matching with the driving wheels;

the pore plate grid main machine is of a cuboid structure;

each screen plate is square in opening, and the aperture is 6mm;

the grid slag squeezing system also comprises a gear motor 10 and a squeezing spindle 11;

the gear motor 10 is used for driving the pressing main shaft 11 to rotate;

the pressing main shaft 11 is coaxially connected with the screw shaft 3, and the pressing main shaft 11 is used for driving the screw shaft 3 to rotate;

the grid slag squeezing system also comprises a U-shaped filter screen plate 13;

the U-shaped filter screen plate 13 is positioned between the slag groove 12 and the screw shaft 3 and is used for filtering water generated in the pushing and squeezing dehydration process of the grid slag;

the inner surface of the U-shaped filter screen plate 13 is matched with the spiral blades, and the spiral blades are used for pushing the grid residues collected in the U-shaped filter screen plate 13 to the squeezing tube 4 for squeezing and dewatering;

the grid slag squeezing system also comprises a pair of flushing water pipes 9;

each flushing pipe 9 is arranged above one slag baffle 15 of the pair of slag baffles 15 and is used for flushing the grid slag attached to the corresponding slag baffle 15 into the slag groove 12;

each of the wash water pipes 9 is provided with a plurality of wash water holes;

a pair of slag baffles 15 are matched with the slag groove 12 in a V shape and are used for collecting the grid slag purged by the air knife 14 and/or the grid slag flushed by the pair of flushing water pipes 9 into the slag groove 12;

according to the utility model, the grid residue squeezing system further comprises a reinforcing guide rail 16, a residue discharging pipe 5 and a residue collecting box 18;

the reinforcing guide rail 16 is arranged below the slag bath 12 and is used for enhancing the structural strength of the slag bath 12 and reducing the installation difficulty of the slag bath 12;

the slag discharging pipe 5 is communicated with the pressing pipe 4 and is positioned outside the pressing pipe 4 and used for outputting the gate slag generated by the pressing pipe 4 after the pressing dehydration to the slag collecting box 18.

In the embodiment, the fan 17 and the air knife 14 are adopted to purge the grid slag adhered to the inner side wall and the side wall of the openings of the screen plate, so that the problems of high water consumption and large occupied area of a flushing water system are solved, and the cost is reduced; the screen cleaning system with the fan and the air knife 14 is more stable in operation and low in failure rate, and can solve the problem of blockage of a flushing water nozzle; the net plate cleaning system adopting the purging mode can reduce the water consumption by 95 percent.

The foregoing description of embodiments of the utility model has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.

Claims (10)

1. A water-saving orifice plate grid scrubbing presses integrative device, characterized by comprising:

the device comprises a pore plate grid host, a driving device and a pore plate grid, wherein a plurality of screen plate openings are uniformly distributed on the pore plate grid, and the driving device is used for driving the pore plate grid to circularly rotate;

the screen plate cleaning system comprises a fan and an air knife which are connected through a pipeline, wherein the air knife is arranged at the upper part of the outer side of the screen plate grid and is used for blowing grid slag adhered to the inner side and the side wall of an opening of the screen plate;

the grid slag squeezing system comprises a pair of slag blocking plates, a slag groove, a screw shaft and a squeezing pipe, wherein the slag blocking plates are matched with the slag groove and the inner side wall of the orifice plate grid, and are used for collecting grid slag blown down by an air knife into the slag groove, the screw shaft is provided with screw blades, the squeezing pipe is located at the outer side of one end of the screw shaft, and the screw shaft is used for driving the screw blades to push the grid slag collected into the slag groove into the squeezing pipe for squeezing and dewatering.

2. The device of claim 1, wherein the orifice plate grille main machine is further provided with an upper frame, a lower frame, a cover plate and a driving motor;

the upper frame and the lower frame are used for supporting the orifice plate grid host;

the cover plate is used for preventing grid slag blown by the air knife from splashing outside the orifice plate grid main machine;

the driving device comprises a driving shaft, a pair of driving wheels and a pair of driving chains, and the driving wheels are respectively arranged at two ends of the driving shaft;

the drive shaft is arranged at the upper part of the orifice plate grid host:

the driving chains are respectively fixed at two ends of the orifice plate grating, and one ends of the driving chains are matched with one pair of driving wheels and one pair of driving chains for driving the orifice plate grating to circularly rotate;

the driving motor is used for driving the driving shaft to rotate.

3. The device according to claim 2, wherein the driving device further comprises a driven shaft, a pair of driven wheels, and the driven wheels are respectively arranged at two ends of the driven shaft;

the driven shaft is arranged at the lower part of the orifice plate grid host;

the other ends of the driven wheels and the driving chains are matched and used for driving the orifice plate grating to circularly rotate by matching with the driving wheels.

4. A device according to claim 3, wherein the aperture plate grid host is of rectangular parallelepiped configuration;

each screen plate has a round or square opening, and the aperture is 1-6 mm.

5. The apparatus of any one of claims 1-4, wherein the grid residue squeezing system further comprises a gear motor and a squeezing spindle;

the speed reducing motor is used for driving the pressing main shaft to rotate;

the pressing main shaft is coaxially connected with the screw shaft and is used for driving the screw shaft to rotate.

6. The apparatus of claim 5, wherein the grid residue squeezing system further comprises a U-shaped screen plate;

the U-shaped filter screen plate is positioned between the slag groove and the screw shaft and is used for filtering water generated in the pushing and squeezing dehydration process of the grid slag.

7. The apparatus of claim 6, wherein the inner surface of the U-shaped filter screen plate cooperates with the spiral blades for pushing the collected grating residues into the U-shaped filter screen plate to the press tube for press dewatering.

8. The apparatus of claim 7, wherein the grating slag squeezing system further comprises a pair of flushing water pipes;

each flushing pipe is arranged above one slag baffle plate of the pair of slag baffles and is used for flushing the grid slag attached to the corresponding slag baffle plate into the slag groove;

each of the wash water pipes is provided with a plurality of wash water holes.

9. The apparatus of claim 8, wherein a pair of slag baffles are V-shaped to cooperate with the slag bath for collecting the gate slag from the air knife and/or from the pair of flushing pipes into the slag bath.

10. The apparatus of claim 9, wherein the grid residue squeezing system further comprises a reinforcing rail, a residue pipe, and a residue collection tank;

the reinforcing guide rail is arranged below the slag groove and is used for enhancing the structural strength of the slag groove and reducing the installation difficulty of the slag groove;

the slag discharging pipe is communicated with the squeezing pipe and is positioned at the outer side of the squeezing pipe and used for outputting the squeezed and dehydrated grid slag generated by the squeezing pipe to the slag collecting box.