Sewage blocking, deslagging and filtering equipment

Abstract

The utility model relates to the technical field of sewage treatment, in particular to sewage blocking, deslagging and filtering equipment, which adopts double stations, does not need to suspend sewage input in the deslagging process, utilizes the self weight of sewage to discharge slag, and reduces the use cost and the maintenance cost. Comprising a sewage pipe I, a sewage pipe II, a valve I and a valve II, the stand column is installed on the bottom plate, the middle of the cross beam is rotationally connected with the stand column, the left end of the cross beam is rotationally connected with the first filter box, the right end of the cross beam is rotationally connected with the second filter box, the first filter box is located below the first sewage pipe, and the second filter box is located below the second sewage pipe; the filter box I is located below the sewage pipe I, the filter box II is located below the sewage pipe II, the two slag pushing grids are slidably installed in the filter box I and the filter box II in a liftable mode, the upper ends of the two supporting rods penetrate through the bottom of the filter box I and the bottom of the filter box II to be connected with the two slag pushing grids, and the grabbing and releasing assembly alternately grabs and releases the filter box I and the filter box II.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage interception, dirt removal and slag filtering device. Background Art

[0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements for discharge into a certain water body or reuse. In the prior art, a variety of sewage interception and slag removal filtering equipment has been proposed, such as a sewage treatment interception device proposed in the Chinese utility model patent with publication number CN220664929U. The device is provided with a slag removal mechanism. When slag removal is required, the hydraulic cylinder is started to drive the connecting plate to rise. Due to the limiting effect of the chute and the slider, the slag collecting bucket moves along the direction of the chute with the connecting plate, and the garbage and waste residue in the slag collecting bucket are taken up together. At the same time, the scraper scrapes the garbage on the front of the grille during the upward movement and makes it fall into the slag collecting bucket. The slag removal mechanism is convenient for cleaning the intercepted garbage and waste residue, and prevents the accumulation of garbage from clogging the interception device and affecting the interception effect.

[0003] However, the above-mentioned prior art relies on hydraulic cylinders to act as power elements, which requires the configuration of a corresponding hydraulic oil system, resulting in a complex structure, which in turn leads to high use and maintenance costs. In addition, the single-station setting is adopted, and the input of sewage needs to be suspended during the slag discharge process, delaying the sewage treatment work. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a sewage intercepting and slag removing filtering equipment which adopts a double station, does not need to stop inputting sewage during the slag discharge process, utilizes the sewage's own weight to discharge slag, and has reduced use cost and maintenance cost.

[0005] The utility model discloses a sewage intercepting and slag removing filtering device, comprising a sewage pipe, a sewage pipe, a valve, and a valve. The valve is installed on the sewage pipe, and the valve is installed on the sewage pipe. The utility model also includes a bottom plate, a column, a crossbeam, a filter box, a filter box, two, two slag pushing grids and two support rods. The column is installed on the bottom plate, the middle part of the crossbeam is rotatably connected to the column, the left end of the crossbeam is rotatably connected to the filter box, and the right end of the crossbeam is rotatably connected to the filter box. The filter box is located below the output port of the sewage pipe, and the filter box is located below the output port of the sewage pipe. The upper ends of the filter boxes are both provided with openings, and the two slag pushing grids are provided with a plurality of support rods. The slides that can be lifted and lowered are respectively installed in the filter box one and the filter box two, the two support rods are installed on the bottom plate, the upper ends of the two support rods pass through the bottom of the filter box one and the filter box two respectively and are connected with the two slag pushing grilles, and two grabbing and releasing components are installed on the bottom plate, and the grabbing and releasing components alternately grab and release the filter box one and the filter box two; when working, under the seesaw support of the crossbeam, when the filter box one is in a high position, the filter box two is in a low position, and the filter box two is grabbed by the grabbing and releasing components, and the slag pushing grille in the filter box one is located at the bottom of the filter box one, and the slag pushing grille in the filter box two is located at the top of the filter box two; at this time, the valve is opened and the sewage is transported through the sewage pipe one The sewage flows into filter box 1, and then flows out into the subsequent treatment system after being filtered by filter box 1. The large particles of debris in the sewage are intercepted by filter box 1 and the slag pusher grille. When too much debris is intercepted in filter box 1, causing filter box 1 to be blocked, the water level in filter box 1 rises, the overall weight of filter box 1 increases, and the pulling force of filter box 1 on filter box 2 through the crossbeam increases. When the pulling force on filter box 2 is greater than the gripping force of the catch and release assembly, filter box 2 separates from the catch and release assembly, thereby causing filter box 1 to drop and filter box 2 to rise, and the slag pusher grille in filter box 2 drops to the bottom of filter box 2. At this time, valve 1 is closed and valve 2 is opened. , so that the sewage is input into the filter box two through the sewage pipe two for filtration. During the descent of the filter box one, the slag pushing grid in the filter box one remains stable relative to the bottom plate under the support of the support rod, so that the slag pushing grid is raised relative to the filter box one to discharge the debris intercepted in the filter box one from the opening, thereby realizing the slag removal function. After the filter box one is lowered into place, it is caught by another grabbing and releasing component. A double-station setting is adopted. During the slag discharge process, there is no need to pause the input of sewage, and the sewage treatment work is not delayed. The slag discharge action is performed by the sewage's own gravity, and there is no need to support the drive system of the hydraulic system. The structure is simple, and the use cost and maintenance cost are reduced.

[0006] Preferably, slag discharge ports are provided on the upper parts of the side walls of filter box one and filter box two, and the two slag pushing grates are inclined, with the bottom ends of the two slag pushing grates facing the slag discharge ports of filter box one and filter box two, respectively; the above-mentioned arrangement improves the efficiency of debris discharge in filter box one and filter box two.

[0007] Preferably, it also includes a bracket, contact switch 1 and contact switch 2, valve 1 and valve 2 are both electrically controlled valves, the bracket is installed on the column, contact switch 1 and contact switch 2 are installed on the bracket, the contact end of contact switch 1 and the contact end of contact switch 2 are aligned with the crossbeam, contact switch 1 is close to filter box 1, contact switch 2 is close to filter box 2, contact switch 1 is electrically connected to valve 1, and contact switch 2 is electrically connected to valve 2; when the crossbeam drives filter box 1 to descend, the crossbeam is separated from the contact end of contact switch 1, contact switch 1 sends an electrical signal to valve 1 to close valve 1, and at the same time, the crossbeam drives filter box 2 to rise, the crossbeam contacts the contact end of contact switch 2, and contact switch 2 sends an electrical signal to valve 2 to open valve 2, otherwise valve 2 is closed and valve 1 is opened, thereby realizing automatic switching of sewage pipe 1 and sewage pipe 2, which is practical.

[0008] Preferably, it also includes two sets of slide rails and two slide tables, the two sets of slide rails are installed on the bottom plate, the two sets of slide rails are parallel to the crossbeam, the two slide tables are slidably installed on the two sets of slide rails, and the two support rods are installed on the two slide tables; during the lifting process of filter box one and filter box two, filter box one and filter box two will move left and right. By setting two sets of slide rails and two slide tables, the two support rods and the two slag pushing grilles can move with the left and right movement of filter box one and filter box two, avoiding interference between filter box one and filter box two and the two slag pushing grilles, thereby improving reliability.

[0009] Preferably, the catch and release assembly comprises a cross bar, two clamping plates, a mounting seat and a tension spring, the cross bar is mounted on the bottom of the filter box one or the filter box two through a bracket, the two clamping plates are relatively arranged on both sides of the cross bar, the upper ends of the two clamping plates are provided with relatively close arc plates, the lower ends of the two clamping plates are rotatably connected to the mounting seat, the two ends of the tension spring are respectively connected to the two clamping plates, and the elastic force of the tension spring tightens the two clamping plates relatively; when the filter box one or the filter box two descends, the cross bar is driven to descend and enter between the two clamping plates, and the arc plates of the two clamping plates will clamp the cross bar under the elastic force of the tension spring, thereby grabbing the filter box one or the filter box two; when the pulling force applied to the filter box one or the filter box two is greater than the arc plate resistance of the two clamping plates, the filter box one or the filter box two drives the cross bar to separate from the two clamping plates and rise, thereby releasing the filter box one and the filter box two, and the tension threshold for releasing the filter box one or the filter box two can be adjusted by adjusting the stiffness coefficient of the tension spring, thereby ensuring that the sewage in the filter box one or the filter box two is released before overflowing, which has good practicality.

[0010] Preferably, the two support rods are retractable; the support rods are set with a certain extension amount, when the slag pushing grid is blocked and the sewage in filter box one or filter box two reaches a set height, filter box one or filter box two together with the slag pushing grid therein can decrease the extension amount of the support rods, so that filter box one or filter box two continues to descend under the action of inertia to complete the slag discharge action, avoiding slag discharge failure caused by blockage of the slag pushing grid and improving reliability.

[0011] Preferably, a driving assembly for the crossbeam is arranged on the column, and the driving assembly drives the crossbeam to rotate repeatedly; the driving assembly is one of a hydraulic cylinder assembly, a motor swing arm assembly, and a cylinder assembly. When emergency slag discharge or maintenance is required, the driving assembly is started to drive the crossbeam to rotate back and forth several times, driving filter box one and filter box two to alternately rise and lower, and discharge all debris in filter box one and filter box two, so as to facilitate maintenance by staff.

[0012] Compared with the prior art, the utility model has the following beneficial effects: during operation, under the seesaw support of the crossbeam, when the first filter box is in a high position, the second filter box is in a low position, and the second filter box is caught by the catch and release assembly, and the slag pushing grille in the first filter box is located at the bottom of the first filter box, and the slag pushing grille in the second filter box is located at the top of the second filter box; at this time, valve one is opened and the sewage is input into the first filter box through the sewage pipe one, and the sewage flows out into the subsequent treatment system after being filtered by the first filter box, and the large particles of debris in the sewage are intercepted by the first filter box and the slag pushing grille. When too much debris is intercepted in the first filter box, causing the first filter box to be blocked, the water level in the first filter box rises, the overall weight of the first filter box increases, and the pulling force of the first filter box on the second filter box through the crossbeam increases. When the pulling force applied to the second filter box is greater than the gripping force of the catch and release assembly , filter box two separates from the grasping and releasing component, thereby making filter box one descend and filter box two rise, and the slag pushing grid in filter box two descends to the bottom of filter box two. At this time, valve one is closed and valve two is opened, so that sewage is input into filter box two through sewage pipe two for filtration. In the process of filter box one descending, the slag pushing grid in filter box one remains stable relative to the bottom plate under the support of the support rod, so that the slag pushing grid rises relative to filter box one and the debris intercepted in filter box one is discharged from the opening to realize the slag removal function. After filter box one is dropped into place, it is grasped by another grasping and releasing component. A double-station setting is adopted. There is no need to suspend the input of sewage during the slag discharge process, and the sewage treatment work is not delayed. The slag discharge action is performed by the sewage's own gravity, and there is no need to support the drive system of the hydraulic system. The structure is simple, and the use cost and maintenance cost are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a front structural schematic diagram of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the filter box 1 and the catch and release assembly;

[0016] Figure 4 It is a schematic diagram of the structure of the slag pushing grid, support rods and slides;

[0017] Figure 5 yes Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0018] Markings in the attached figure: 1. Sewage pipe 1; 2. Sewage pipe 2; 3. Valve 1; 4. Valve 2; 5. Bottom plate; 6. Column; 7. Crossbeam; 8. Filter box 1; 9. Filter box 2; 10. Slag pushing grid; 11. Support rod; 12. Bracket; 13. Contact switch 1; 14. Contact switch 2; 15. Slide rail; 16. Slide; 17. Crossbar; 18. Clamp; 19. Mounting seat; 20. Tension spring. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Example 1

[0020] like Figures 1 to 4As shown, a sewage interception and slag removal filtering device includes a sewage pipe 1, a sewage pipe 2, a valve 3 and a valve 4, wherein the valve 3 is installed on the sewage pipe 1, and the valve 24 is installed on the sewage pipe 2; it also includes a bottom plate 5, a column 6, a crossbeam 7, a filter box 1 8, a filter box 2 9, two slag pushing grids 10 and two support rods 11, the column 6 is installed on the bottom plate 5, the middle part of the crossbeam 7 is rotatably connected to the column 6, the left end of the crossbeam 7 is rotatably connected to the filter box 1 8, and the right end of the crossbeam 7 is rotatably connected to the filter box 2 9. Then, the filter box 1 8 is located below the output port of the sewage pipe 1, and the filter box 2 9 is located below the output port of the sewage pipe 2. The upper ends of the filter boxes 1 8 and 2 9 are both provided with openings. Two slag pusher grilles 10 are respectively installed in the filter box 1 8 and the filter box 2 9 in a sliding manner that can be lifted and lowered. Two support rods 11 are installed on the bottom plate 5. The upper ends of the two support rods 11 pass through the bottom of the filter box 1 8 and the filter box 2 9 respectively and are connected to the two slag pusher grilles 10. Two grabbing and releasing components are installed on the bottom plate 5. The grabbing and releasing components alternately grab and release Filter box 1 8 and filter box 2 9; slag discharge ports are arranged on the upper part of the side walls of filter box 1 8 and filter box 2 9, and two slag pushing grids 10 are arranged obliquely, and the bottom ends of the two slag pushing grids 10 are respectively facing the slag discharge ports of filter box 1 8 and filter box 2 9; it also includes a bracket 12, a contact switch 13 and a contact switch 2 14, valve 1 3 and valve 2 4 are both electrically controlled valves, the bracket 12 is installed on the column 6, the contact switch 1 13 and the contact switch 2 14 are installed on the bracket 12, and the contact end of the contact switch 13 and The contact ends of contact switch 2 14 are aligned with the cross beam 7, contact switch 1 13 is close to filter box 1 8, contact switch 2 14 is close to filter box 2 9, contact switch 1 13 is electrically connected to valve 1 3, and contact switch 2 14 is electrically connected to valve 2 4; it also includes two groups of slide rails 15 and two slide platforms 16, the two groups of slide rails 15 are installed on the base plate 5, the two groups of slide rails 15 are parallel to the cross beam 7, the two slide platforms 16 are respectively slidably installed on the two groups of slide rails 15, and the two support rods 11 are respectively installed on the two slide platforms 16.

[0021] During operation, under the seesaw support of the crossbeam 7, when the filter box 18 is in a high position, the filter box 29 is in a low position, and the filter box 29 is caught by the catch and release assembly, and the slag pushing grille 10 in the filter box 18 is located at the bottom of the filter box 18, and the slag pushing grille 10 in the filter box 29 is located at the top of the filter box 29; at this time, the crossbeam 7 contacts the contact end of the contact switch 13, and the contact switch 13 sends an electrical signal to the valve 3, and the valve 3 opens the sewage to be input into the filter box 8 through the sewage pipe 1, and the sewage is filtered by the filter box 8 and flows out into the subsequent treatment system, and the large particles of debris in the sewage are filtered by the filter box 13. 8 and the slag pushing grid 10 intercept. When too much debris is intercepted in the filter box 8 and the filter box 8 is blocked, the water level in the filter box 8 rises, the overall weight of the filter box 8 increases, and the pulling force exerted by the filter box 8 on the filter box 2 9 through the crossbeam 7 increases. When the pulling force exerted on the filter box 2 9 is greater than the gripping force of the catch and release assembly, the filter box 2 9 is separated from the catch and release assembly, so that the filter box 18 descends and the filter box 2 9 rises. The slag pushing grid 10 in the filter box 2 9 descends to the bottom of the filter box 2 9. At this time, the crossbeam 7 is separated from the contact end of the contact switch 13, and the contact switch 13 sends an electrical signal to the valve 3, so that The valve 3 is closed, and the crossbeam 7 drives the filter box 29 to rise. The crossbeam 7 contacts the contact end of the contact switch 214. The contact switch 214 sends an electrical signal to the valve 24, so that the valve 24 is opened, so that the sewage is input into the filter box 29 through the sewage pipe 22 for filtration. During the descent of the filter box 8, the slag pushing grid 10 in the filter box 8 is supported by the support rod 11 to remain stable relative to the bottom plate 5, so that the slag pushing grid 10 is raised relative to the filter box 8 to discharge the debris intercepted in the filter box 8 from the opening, thereby realizing the slag removal function. After the filter box 8 is lowered into place, it is caught by another catch and release assembly. During the lifting and lowering process of filter box 1 8 and filter box 2 9, filter box 1 8 and filter box 2 9 will move left and right. By setting two sets of slide rails 15 and two slides 16, the two support rods 11 and the two slag pushing grates 10 can move with the left and right movement of filter box 1 8 and filter box 2 9, avoiding interference between filter box 1 8 and filter box 2 9 and the two slag pushing grates 10. A double-station setting is adopted, and there is no need to pause the input of sewage during the slag discharge process, and the sewage treatment work is not delayed. The slag discharge action is carried out by the sewage's own gravity, and there is no need to support the drive system of the hydraulic system. The structure is simple, and the use cost and maintenance cost are reduced. Example 2

[0022] like Figure 3 and Figure 5As shown, on the basis of Example 1, the catch and release assembly includes a cross bar 17, two clamps 18, a mounting seat 19 and a tension spring 20. The cross bar 17 is installed at the bottom of the filter box 1 8 or the filter box 2 9 through a bracket. The two clamps 18 are relatively arranged on both sides of the cross bar 17. Relatively close arc plates are arranged at the upper ends of the two clamps 18. The lower ends of the two clamps 18 are rotatably connected to the mounting seat 19. The two ends of the tension spring 20 are respectively connected to the two clamps 18, and the elastic force of the tension spring 20 tightens the two clamps 18 relatively.

[0023] When filter box 1 8 or filter box 2 9 descends, it drives the cross bar 17 to descend and enter between the two clamps 18. The arc plates of the two clamps 18 will clamp the cross bar 17 under the elastic force of the tension spring 20, thereby grabbing filter box 1 8 or filter box 2 9; when the tension applied to filter box 1 8 or filter box 2 9 is greater than the arc plate resistance of the two clamps 18, filter box 1 8 or filter box 2 9 drives the cross bar 17 to separate from the two clamps 18 and rise, thereby releasing filter box 1 8 and filter box 2 9, and the tension threshold for releasing filter box 1 8 or filter box 2 9 can be adjusted by adjusting the stiffness coefficient of the tension spring 20, thereby ensuring that the sewage in filter box 1 8 or filter box 2 9 is released before overflowing. Example 3

[0024] like Figure 1 , Figure 2 and Figure 4 As shown, based on the embodiment 1, the two support rods 11 are retractable; a driving assembly of the cross beam 7 is arranged on the column 6, and the driving assembly drives the cross beam 7 to rotate repeatedly.

[0025] The support rod 11 is set with a certain extension and contraction amount. When the slag pushing grid 10 is blocked and the sewage in the filter box 1 8 or the filter box 2 9 reaches the set height, the filter box 1 8 or the filter box 2 9 together with the slag pushing grid 10 therein can reduce the extension and contraction amount of the support rod 11, so that the filter box 1 8 or the filter box 2 9 continues to descend under the action of inertia to complete the slag discharge action, thereby avoiding the slag discharge failure caused by the blockage of the slag pushing grid 10. The driving component is one of a hydraulic cylinder component, a motor swing arm component, and a cylinder component. When emergency slag discharge or maintenance is required, the driving component is started to drive the crossbeam 7 to reciprocate several times, drive the filter box 1 8 and the filter box 2 9 to alternately rise and fall, and discharge all the debris in the filter box 1 8 and the filter box 2 9, thereby improving reliability and facilitating maintenance for staff.

[0026] like Figures 1 to 5As shown, the utility model is a sewage intercepting and slag removing filtering device. When it is working, first, when the filter box 18 is in a high position, the filter box 29 is in a low position, and the filter box 29 is caught by two clamping plates 18 through the cross bar 17. At this time, the contact switch 13 contacts the cross beam 7 and the valve 3 is opened. The sewage is input into the filter box 18 through the sewage pipe 1. After the sewage is filtered by the filter box 8, it flows out and enters the subsequent treatment system. The debris in the sewage is intercepted by the filter box 18 and the slag pushing grid 10. When the intercepted debris in the filter box 8 is too much and causes the filter box 8 to be blocked, the water level in the filter box 8 rises, the overall weight of the filter box 8 increases, and the pulling force of the filter box 8 on the filter box 29 through the cross beam 7 increases. When the pulling force on the filter box 29 is greater than the gripping force of the catch and release assembly , the cross bar 17 of the filter box 2 9 is separated from the two clamping plates 18, so that the filter box 1 8 is lowered and the filter box 2 9 is raised, and the slag pushing grid 10 in the filter box 2 9 is lowered to the bottom of the filter box 2 9. At this time, the contact switch 13 is separated from the cross beam 7, so that the valve 3 is closed, and the contact switch 2 14 is in contact with the cross beam 7 to open the valve 2 4, so that the sewage is input into the filter box 2 9 through the sewage pipe 2 for filtration. In the process of the filter box 1 8 being lowered, the slag pushing grid 10 in the filter box 1 8 is supported by the support rod 11 and remains stable relative to the bottom plate 5, so that the slag pushing grid 10 is raised relative to the filter box 1 8 to discharge the debris intercepted in the filter box 8 from the opening, thereby realizing the slag removal function. After the filter box 1 8 is lowered into place, it can be caught by the other two clamping plates 18 through another cross bar 17.

[0027] The main functions achieved by this utility model are:

[0028] 1. The double-station setting is adopted, and there is no need to stop the input of sewage during the slag discharge process, which does not delay the sewage treatment work;

[0029] 2. The slag discharge is carried out by using the gravity of sewage, without the need for the support of the hydraulic system drive system, with a simple structure and reduced use and maintenance costs;

[0030] 3. Automatically switch the sewage interception, slag removal and filtration stations with a high degree of automation.

[0031] The utility model is a sewage intercepting and slag removing filtering equipment, and its installation method, connection method or setting method are all common mechanical methods, and can be implemented as long as the beneficial effects can be achieved; the sewage pipe 1, sewage pipe 2, valve 1, valve 2, crossbeam 7, filter box 1, filter box 2, slag pushing grille 10, support rod 11, contact switch 13, contact switch 2, slide rail 15, slide table 16, tension spring 20 of the sewage intercepting and slag removing filtering equipment of the utility model are purchased on the market, and technical personnel in the industry only need to install and operate them according to the accompanying instruction manual, without the need for technical personnel in this field to pay creative labor.

[0032] All technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A sewage interception and slag removal filtering device, comprising a sewage pipe (1), a sewage pipe (2), a valve (3) and a valve (4), wherein the valve (3) is installed on the sewage pipe (1), and the valve (4) is installed on the sewage pipe (2); characterized in that: It also includes a bottom plate (5), a column (6), a crossbeam (7), a filter box 1 (8), a filter box 2 (9), two slag pushing grids (10) and two support rods (11), the column (6) is mounted on the bottom plate (5), the middle part of the crossbeam (7) is rotatably connected to the column (6), the left end of the crossbeam (7) is rotatably connected to the filter box 1 (8), and the right end of the crossbeam (7) is rotatably connected to the filter box 2 (9), the filter box 1 (8) is located below the output port of the sewage pipe 1 (1), and the filter box 2 (9) is located at the outlet of the sewage pipe 2 (2). Below the output port, openings are provided at the upper ends of the filter box 1 (8) and the filter box 2 (9), two slag pushing grilles (10) are respectively slidably installed in the filter box 1 (8) and the filter box 2 (9), two support rods (11) are installed on the bottom plate (5), the upper ends of the two support rods (11) respectively pass through the bottom of the filter box 1 (8) and the filter box 2 (9) and are connected to the two slag pushing grilles (10), and two grabbing and releasing assemblies are installed on the bottom plate (5), and the grabbing and releasing assemblies alternately grab and release the filter box 1 (8) and the filter box 2 (9).

2. The sewage interception and slag removal filtering equipment according to claim 1, characterized in that: The upper parts of the side walls of the filter box 1 (8) and the filter box 2 (9) are both provided with slag discharge openings, and the two slag pushing grids (10) are both inclinedly arranged, with the bottom ends of the two slag pushing grids (10) facing the slag discharge openings of the filter box 1 (8) and the filter box 2 (9), respectively.

3. The sewage interception and slag removal filtering equipment according to claim 1, characterized in that: The invention also comprises a bracket (12), a contact switch 1 (13) and a contact switch 2 (14); the valve 1 (3) and the valve 2 (4) are both electrically controlled valves; the bracket (12) is mounted on the column (6); the contact switch 1 (13) and the contact switch 2 (14) are mounted on the bracket (12); the contact end of the contact switch 1 (13) and the contact end of the contact switch 2 (14) are both aligned with the crossbeam (7); the contact switch 1 (13) is close to the filter box 1 (8); the contact switch 2 (14) is close to the filter box 2 (9); the contact switch 1 (13) is electrically connected to the valve 1 (3); and the contact switch 2 (14) is electrically connected to the valve 2 (4).

4. The sewage interception and slag removal filtering equipment according to claim 1, characterized in that: It also includes two sets of slide rails (15) and two slide platforms (16). The two sets of slide rails (15) are installed on the bottom plate (5). The two sets of slide rails (15) are parallel to the crossbeam (7). The two slide platforms (16) are respectively slidably installed on the two sets of slide rails (15). The two support rods (11) are respectively installed on the two slide platforms (16).

5. The sewage interception and slag removal filtering equipment according to claim 1, characterized in that: The catch and release assembly comprises a cross bar (17), two clamping plates (18), a mounting seat (19) and a tension spring (20). The cross bar (17) is mounted on the bottom of the first filter box (8) or the second filter box (9) through a bracket. The two clamping plates (18) are relatively arranged on both sides of the cross bar (17). The upper ends of the two clamping plates (18) are provided with relatively close arc plates. The lower ends of the two clamping plates (18) are rotatably connected to the mounting seat (19). The two ends of the tension spring (20) are respectively connected to the two clamping plates (18). The elastic force of the tension spring (20) relatively tightens the two clamping plates (18).

6. The sewage interception and slag removal filtering equipment according to claim 1, characterized in that: The two supporting rods (11) are retractable.

7. The sewage interception and slag removal filtering equipment according to claim 1, characterized in that: A driving assembly of the cross beam (7) is arranged on the upright column (6), and the driving assembly drives the cross beam (7) to rotate repeatedly.

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