Grid device for intercepting fiber flocculent pollutants in sewage

Abstract

The utility model relates to the technical field of sewage treatment, and aims to solve the problems that in the prior art, fiber floccules in sewage cannot be screened and filtered, a pretreatment lifting pump is easily wound by the fiber floccules to cause a locked-rotor fault, a fine grid is blocked by fibers to influence water passing, and biochemical pool pushing and stirring equipment is easily wound by the fiber floccules to cause the locked-rotor fault. The utility model provides a grid device for intercepting fiber flocculent pollutants in sewage. The grid device comprises a drain grating, the trash holding grid is of a rectangular structure, a plurality of steel wire ropes are arranged on the two sides of the trash holding grid and distributed at intervals, and the two ends of the steel wire ropes are fixedly connected to the top and the bottom of the trash holding grid respectively. And the height of the drain grating is greater than that of sewage. The utility model has the beneficial effects that the failure rate of the lifting pump is greatly reduced, the blocking frequency of the grillage machine is reduced, the water passing capacity is enhanced, the equipment overhaul rate is reduced, and manpower, material resources and financial resources consumed by maintenance and overhaul are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a grille device for intercepting fiber pollutants in sewage. Background Art

[0002] The sewage pretreatment section is equipped with two screens, a coarse screen and a fine screen. The incoming water is filtered through the coarse screen and then enters the first-stage lifting pump to the fine screen for subsequent treatment. When the sewage treatment plant is located at the end of the pipe network, there is a lot of screen residue garbage, most of which are fiber flocs that cannot be screened. Because the gap between the coarse screen is 20mm and the gap between the fine screen is 3mm, many fibers and flocs of 3-20mm in the sewage will pass through the coarse screen to the lifting pump, entangled on the impeller, causing the pump to stall and overload, affecting normal operation. At the same time, the flocs will cause blockage in the fine screen, seriously affecting the water flow capacity. A small amount of fiber flocs will also enter the biochemical pool and affect the pushing and stirring equipment. The number of equipment maintenance and screen clearing has increased significantly, consuming a lot of manpower and material resources. Utility Model Content

[0003] The utility model aims to provide a screen device for intercepting fiber floc pollutants in sewage, so as to solve the problems in the prior art that the fiber flocs in sewage cannot be screened, the pretreatment lift pump is easily entangled by the fiber flocs and causes a stall, the fine screen is blocked by fibers and affects water flow, and the biochemical pool pushing and stirring equipment is easily entangled by the fiber flocs and causes a stall.

[0004] The embodiment of the utility model is achieved as follows:

[0005] The utility model embodiment provides a grille device for intercepting lint pollutants in sewage, which comprises a trash grille;

[0006] The trash screen is a rectangular structure, and a plurality of steel wire ropes are arranged on both sides of the trash screen, the plurality of steel wire ropes are spaced apart from each other, and the two ends of the plurality of steel wire ropes are respectively fixedly connected to the top and the bottom of the trash screen;

[0007] The height of the trash screen is greater than the height of the sewage.

[0008] When in use, the trash screen is placed before the first screen machine in the channel. After opening the front and rear water inlet gates of the channel, the fiber pollutants in the sewage will be intercepted by the above-mentioned steel wire ropes. After using it for a period of time, the trash screen is lifted up, and most of the entanglements on the above-mentioned steel wire ropes are cleaned off before the trash screen is put back into the channel.

[0009] The screen device for intercepting fibrous pollutants in sewage disclosed in the present embodiment is provided with a plurality of the above-mentioned steel wire ropes, and the fibrous pollutants in sewage are intercepted by the plurality of the above-mentioned steel wire ropes without affecting the flow of sewage. Therefore, the screen device for intercepting fibrous pollutants in sewage has the beneficial effects of greatly reducing the failure rate of the lifting pump, reducing the frequency of blockage of the screen machine, enhancing the water flow capacity, reducing the equipment maintenance rate and reducing the manpower, material and financial resources consumed in maintenance and overhaul.

[0010] Optionally: the gap between adjacent ones of the above-mentioned steel wire ropes is greater than or equal to ten centimeters.

[0011] With such a setting, this distance facilitates the passage of sewage and can intercept the fiber floc pollutants in the sewage to the greatest extent. By removing excess fiber flocs, the equipment failure rate is greatly reduced and the sewage treatment capacity is improved.

[0012] Optionally, the trash grille has a first vertical angle steel, a second vertical angle steel, a third vertical angle steel and a fourth vertical angle steel, and the first vertical angle steel, the second vertical angle steel, the third vertical angle steel and the fourth vertical angle steel are parallel to each other and symmetrically distributed.

[0013] With such arrangement, the first vertical angle steel, the second vertical angle steel, the third vertical angle steel and the fourth vertical angle steel can provide sufficient supporting force, which is conducive to the grille standing in sewage, and at the same time enhances the overall strength of the trash grille.

[0014] Optionally: the bottom ends of the first vertical angle steel, the second vertical angle steel, the third vertical angle steel and the fourth vertical angle steel are provided with a first bottom transverse angle steel, a second bottom transverse angle steel, a first bottom vertical angle steel and a second bottom vertical angle steel;

[0015] The two ends of the first bottom transverse angle steel are respectively fixedly connected to the bottom end of the first vertical angle steel and the bottom end of the second vertical angle steel;

[0016] The two ends of the second bottom transverse angle steel are respectively fixedly connected to the bottom end of the third vertical angle steel and the bottom end of the fourth vertical angle steel;

[0017] The two ends of the first bottom vertical angle steel are respectively fixedly connected to the bottom end of the first vertical angle steel and the bottom end of the fourth vertical angle steel;

[0018] The two ends of the second bottom vertical angle steel are respectively fixedly connected to the bottom end of the second vertical angle steel and the bottom end of the third vertical angle steel.

[0019] In this way, the first bottom transverse angle steel, the second bottom transverse angle steel, the first bottom vertical angle steel and the second bottom vertical angle steel make the bottom structure of the trash grille more stable, thus preventing the trash grille from being deformed.

[0020] Optionally: the top ends of the first vertical angle steel, the second vertical angle steel, the third vertical angle steel and the fourth vertical angle steel are provided with a first top transverse angle steel, a second top transverse angle steel, a first top vertical angle steel and a second top vertical angle steel;

[0021] The two ends of the first top transverse angle steel are respectively fixedly connected to the top end of the first vertical angle steel and the top end of the second vertical angle steel;

[0022] The two ends of the second top transverse angle steel are respectively fixedly connected to the top end of the third vertical angle steel and the top end of the fourth vertical angle steel;

[0023] The two ends of the first top vertical angle steel are respectively fixedly connected to the top of the first vertical angle steel and the top of the fourth vertical angle steel;

[0024] The two ends of the second top vertical angle steel are respectively fixedly connected to the top end of the second vertical angle steel and the top end of the third vertical angle steel.

[0025] With such arrangement, the first top transverse angle steel, the second top transverse angle steel, the first top vertical angle steel and the second top vertical angle steel make the top structure of the trash grille more stable, avoid deformation of the trash grille, and at the same time, facilitate the installation of the top channel steel.

[0026] Optionally: a top channel steel is provided between the first top vertical angle steel and the second top vertical angle steel, and both ends of the top channel steel are respectively vertically fixedly connected to the middle sections of the first top vertical angle steel and the second top vertical angle steel, and the top channel steel is spaced and parallel to the first top transverse angle steel and the second top transverse angle steel.

[0027] With such arrangement, the installation of the top channel steel can further improve the structural stability of the trash grille and facilitate the installation of the lifting lugs.

[0028] Optionally: a first side channel steel is provided on the outer side of the first bottom vertical angle steel and the first top vertical angle steel, and two ends of the first side channel steel are respectively vertically fixedly connected to the middle sections of the outer side surfaces of the first bottom vertical angle steel and the first top vertical angle steel;

[0029] A second side channel steel is provided on the outer side of the second bottom vertical angle steel and the second top vertical angle steel, and both ends of the second side channel steel are respectively vertically fixedly connected to the middle section of the outer side surface of the second bottom vertical angle steel and the second top vertical angle steel.

[0030] In this way, the first side channel steel and the second side channel steel can not only improve the overall strength and stability of the trash grille, but also play a guiding role. When the grille is put into the sewage channel, the first side channel steel and the second side channel steel cooperate with the slide rail in the sewage channel, so that the grille can be smoothly lowered or lifted. At the same time, it also has a limiting function to prevent the grille from being displaced by sewage erosion.

[0031] Optionally: the top surfaces of the first top vertical angle steel, the second top vertical angle steel and the top channel steel are all provided with lifting ears, and the lifting ears are fixedly connected to the top surfaces of the first top vertical angle steel, the second top vertical angle steel and the top channel steel;

[0032] The first top vertical angle steel, the second top vertical angle steel and the lifting ears on the top surface of the top channel steel are all located in the same longitudinal direction.

[0033] With such arrangement, the lifting lugs facilitate the force balance of the trash screen during hoisting, and facilitate the hoisting wire rope to be hung in the lifting lugs at the top.

[0034] Optionally: a plurality of symmetrical first mounting holes are provided on the first bottom transverse angle steel and the first top transverse angle steel, and the plurality of first mounting holes are evenly distributed longitudinally along the first bottom transverse angle steel and the first top transverse angle steel;

[0035] Two ends of the plurality of steel wire ropes are respectively fixedly connected to the first mounting hole of the first bottom transverse angle steel and the first mounting hole of the first top transverse angle steel;

[0036] A plurality of symmetrical second mounting holes are provided on the second bottom transverse angle steel and the second top transverse angle steel, and the plurality of second mounting holes are evenly distributed longitudinally along the second bottom transverse angle steel and the second top transverse angle steel;

[0037] Two ends of the plurality of steel wire ropes are respectively fixedly connected to the second mounting hole of the second bottom transverse angle steel and the second mounting hole of the second top transverse angle steel.

[0038] With such arrangement, the first mounting hole and the second mounting hole are convenient for fixing a plurality of steel wire ropes, and are also convenient for replacing or repairing a plurality of steel wire ropes, and for tightening a plurality of steel wire ropes, thereby improving the effect of intercepting fibrous flocculent pollutants.

[0039] Optionally, the trash grille and the plurality of steel wire ropes are all made of 304 stainless steel.

[0040] With this setting, since the grille is used in sewage, the 304 stainless steel design is used, which effectively improves the corrosion resistance and wear resistance of the grille, reduces the replacement frequency, reduces maintenance costs, and prolongs the service life.

[0041] Based on the above description, the utility model discloses a screen device for intercepting fibrous pollutants in sewage, which has the beneficial effects of greatly reducing the failure rate of the lifting pump, reducing the frequency of screen machine blockage, enhancing the water flow capacity, reducing the equipment maintenance rate and reducing the manpower, material and financial resources consumed in maintenance and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 It is a front view of a grille device for intercepting fibrous pollutants in sewage in an embodiment of the utility model;

[0044] Figure 2 It is a rear view of a grille device for intercepting fibrous pollutants in sewage in an embodiment of the utility model;

[0045] Figure 3 It is a left view of a grille device for intercepting fibrous pollutants in sewage in an embodiment of the utility model;

[0046] Figure 4 It is a right view of a grille device for intercepting fibrous pollutants in sewage in an embodiment of the utility model;

[0047] Figure 5 A top view of a grille device for intercepting fibrous pollutants in sewage in an embodiment of the utility model;

[0048] Figure 6 It is a cross-sectional view of a channel in an embodiment of the present utility model.

[0049] Icon: 1-trash grille, 2-wire rope, 3-first vertical angle steel, 4-second vertical angle steel, 5-third vertical angle steel, 6-fourth vertical angle steel, 7-first bottom transverse angle steel, 8-second bottom transverse angle steel, 9-first bottom vertical angle steel, 10-second bottom vertical angle steel, 11-first top transverse angle steel, 12-second top transverse angle steel, 13-first top vertical angle steel, 14-second top vertical angle steel, 15-top channel steel, 16-first side channel steel, 17-second side channel steel, 18-lifting ear, 19-first mounting hole, 20-second mounting hole, 21-slide rail, 22-channel. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] Example

[0053] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , this embodiment provides a screen device for intercepting lint pollutants in sewage, including a trash screen 1;

[0054] The trash screen 1 is a rectangular structure, and a plurality of steel wire ropes 2 are provided on both sides of the trash screen 1. The steel wire ropes 2 are spaced apart from each other, and the two ends of the steel wire ropes 2 are fixedly connected to the top and the bottom of the trash screen 1 respectively.

[0055] The height of the trash screen 1 is greater than the height of the sewage.

[0056] When in use, the trash screen 1 is placed before the first screen machine in the channel 22. After the front and rear water inlet gates of the channel 22 are opened, the fiber pollutants in the sewage will be intercepted by the plurality of steel wire ropes 2. After using it for a period of time, the trash screen 1 is lifted up, and most of the entanglements on the plurality of steel wire ropes 2 are cleaned off before the trash screen 1 is put back into the channel 22 again.

[0057] The present embodiment discloses a screen device for intercepting fibrous pollutants in sewage, which is provided with a plurality of steel wire ropes 2. The fibrous pollutants in sewage are intercepted by the plurality of steel wire ropes 2 without affecting the flow of sewage. Thus, the screen device for intercepting fibrous pollutants in sewage has the beneficial effects of greatly reducing the failure rate of the lifting pump, reducing the frequency of screen machine blockage, enhancing the water flow capacity, reducing the equipment maintenance rate, and reducing the manpower, material and financial resources consumed in maintenance and overhaul.

[0058] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The gap between adjacent steel wire ropes 2 is greater than or equal to ten centimeters. This distance is convenient for sewage to pass through and can intercept fiber floc pollutants in the sewage to the greatest extent. By removing excess fiber flocs, the equipment failure rate is greatly reduced and the sewage treatment capacity is improved.

[0059] The trash grille 1 has a first vertical angle steel 3, a second vertical angle steel 4, a third vertical angle steel 5 and a fourth vertical angle steel 6. The first vertical angle steel 3, the second vertical angle steel 4, the third vertical angle steel 5 and the fourth vertical angle steel 6 are parallel to each other and symmetrically distributed. The first vertical angle steel 3, the second vertical angle steel 4, the third vertical angle steel 5 and the fourth vertical angle steel 6 can provide sufficient supporting force, which is conducive to the grille standing in sewage, and at the same time enhances the overall strength of the trash grille 1.

[0060] The bottom ends of the first vertical angle steel 3, the second vertical angle steel 4, the third vertical angle steel 5 and the fourth vertical angle steel 6 are provided with a first bottom transverse angle steel 7, a second bottom transverse angle steel 8, a first bottom vertical angle steel 9 and a second bottom vertical angle steel 10;

[0061] The two ends of the first bottom transverse angle steel 7 are respectively fixedly connected to the bottom end of the first vertical angle steel 3 and the bottom end of the second vertical angle steel 4;

[0062] The two ends of the second bottom transverse angle steel 8 are respectively fixedly connected to the bottom end of the third vertical angle steel 5 and the bottom end of the fourth vertical angle steel 6;

[0063] The two ends of the first bottom vertical angle steel 9 are respectively fixedly connected to the bottom end of the first vertical angle steel 3 and the bottom end of the fourth vertical angle steel 6;

[0064] The two ends of the second bottom vertical angle steel 10 are respectively fixedly connected to the bottom end of the second vertical angle steel 4 and the bottom end of the third vertical angle steel 5. The first bottom transverse angle steel 7, the second bottom transverse angle steel 8, the first bottom vertical angle steel 9 and the second bottom vertical angle steel 10 make the bottom structure of the trash grille 1 more stable and avoid deformation of the trash grille 1.

[0065] The top ends of the first vertical angle steel 3, the second vertical angle steel 4, the third vertical angle steel 5 and the fourth vertical angle steel 6 are provided with a first top transverse angle steel 11, a second top transverse angle steel 12, a first top vertical angle steel 13 and a second top vertical angle steel 14;

[0066] The two ends of the first top transverse angle steel 11 are respectively fixedly connected to the top end of the first vertical angle steel 3 and the top end of the second vertical angle steel 4;

[0067] The two ends of the second top transverse angle steel 12 are respectively fixedly connected to the top of the third vertical angle steel 5 and the top of the fourth vertical angle steel 6;

[0068] The two ends of the first top vertical angle steel 13 are respectively fixedly connected to the top of the first vertical angle steel 3 and the top of the fourth vertical angle steel 6;

[0069] The two ends of the second top vertical angle steel 14 are respectively fixedly connected to the top of the second vertical angle steel 4 and the top of the third vertical angle steel 5. The first top transverse angle steel 11, the second top transverse angle steel 12, the first top vertical angle steel 13 and the second top vertical angle steel 14 make the top structure of the trash grille 1 more stable, avoiding deformation of the trash grille 1, and at the same time, facilitating the installation of the top channel steel 15.

[0070] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A top channel steel 15 is provided between the first top vertical angle steel 13 and the second top vertical angle steel 14, and both ends of the top channel steel 15 are vertically fixedly connected to the middle sections of the first top vertical angle steel 13 and the second top vertical angle steel 14, respectively. Moreover, the top channel steel 15 and the first top transverse angle steel 11 and the second top transverse angle steel 12 are spaced and parallel to each other. The installation of the top channel steel 15 can further improve the structural stability of the trash grille 1 and facilitate the installation of the lifting lug 18.

[0071] A first side channel steel 16 is provided on the outer side of the first bottom vertical angle steel 9 and the first top vertical angle steel 13, and both ends of the first side channel steel 16 are respectively vertically fixedly connected to the middle section of the outer side surface of the first bottom vertical angle steel 9 and the first top vertical angle steel 13;

[0072] A second side channel steel 17 is provided on the outer side of the second bottom vertical angle steel 10 and the second top vertical angle steel 14, and both ends of the second side channel steel 17 are vertically fixedly connected to the middle section of the outer side surface of the second bottom vertical angle steel 10 and the second top vertical angle steel 14 respectively. The first side channel steel 16 and the second side channel steel 17 can not only improve the overall strength and stability of the trash grille 1, but also play a guiding role. When the grille is placed in the sewage channel 22, the first side channel steel 16 and the second side channel steel 17 cooperate with the slide rail 21 in the sewage channel 22, so that the grille can be smoothly lowered or lifted, and it also has a limiting function to prevent the grille from being displaced by sewage erosion.

[0073] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The top surfaces of the first top vertical angle steel 13, the second top vertical angle steel 14 and the top channel steel 15 are all provided with lifting ears 18, and the lifting ears 18 are fixedly connected to the top surfaces of the first top vertical angle steel 13, the second top vertical angle steel 14 and the top channel steel 15;

[0074] The lifting ears 18 on the top surfaces of the first top vertical angle steel 13 , the second top vertical angle steel 14 and the top channel steel 15 are all located in the same longitudinal direction. The lifting ears 18 facilitate force balance of the trash screen 1 during lifting and facilitate hanging the lifting rope in the top lifting ears 18 .

[0075] A plurality of symmetrical first mounting holes 19 are formed on the first bottom transverse angle steel 7 and the first top transverse angle steel 11, and the plurality of first mounting holes 19 are evenly distributed longitudinally along the first bottom transverse angle steel 7 and the first top transverse angle steel 11;

[0076] Two ends of a plurality of steel wire ropes 2 are respectively fixedly connected to the first mounting hole 19 of the first bottom transverse angle steel 7 and the first mounting hole 19 of the first top transverse angle steel 11;

[0077] A plurality of symmetrical second mounting holes 20 are formed on the second bottom transverse angle steel 8 and the second top transverse angle steel 12. The plurality of second mounting holes 20 are evenly distributed longitudinally along the second bottom transverse angle steel 8 and the second top transverse angle steel 12.

[0078] The two ends of a plurality of steel wire ropes 2 are respectively fixedly connected to the second mounting hole 20 of the second bottom transverse angle steel 8 and the second mounting hole 20 of the second top transverse angle steel 12. The first mounting hole 19 and the second mounting hole 20 facilitate fixing the plurality of steel wire ropes 2. At the same time, it is also convenient to replace or repair the plurality of steel wire ropes 2, and it is also convenient to tighten the plurality of steel wire ropes 2, thereby improving the effect of intercepting fibrous floc pollutants.

[0079] The trash screen 1 and the plurality of steel wire ropes 2 are all made of 304 stainless steel. Since the screen is used in sewage, the 304 stainless steel design effectively improves the corrosion resistance and wear resistance of the screen, reduces the replacement frequency, reduces the maintenance cost, and prolongs the service life.

[0080] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 In this embodiment, a column-type lifting device with a rotating rod can be installed on the top of the channel 22, so that the trash screen 1 can be lowered to the channel 22 or lifted up from the channel 22 through the column-type lifting device.

[0081] In this embodiment, the specific size of the trash screen 1 can be designed according to the size of the water inlet channel. Since the depth of the water inlet channel is about 5.8m and the water depth is generally 1.5m, considering that the design height of the device does not exceed 1.5m, channel steel parts are used for reinforcement; in order to facilitate the lifting and lowering of the trash screen 1, it is necessary to set a slide rail 21 in the channel 22 for fixing and correcting the placement position of the trash screen 1, and at the same time, a plurality of lifting ears 18 are provided to facilitate the force balance of the trash screen 1 during lifting; considering that fiber flocs are easy to entangle, 1cm steel wire rope 2 is used as the main component of the trash screen 1, and the gap is more than 10cm to facilitate water flow; the trash screen 1 is formed by welding angle steel on all sides, and the two sides and the top are reinforced with channel steel; the trash screen 1 is placed vertically on the channel 22 through which the sewage flows through by fixing the slide rail 21, so as to effectively intercept the fiber floc pollutants.

[0082] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 In this embodiment, the frame of the trash screen 1 is made of angle steel welded, and its length, width and height are: 1.4m×0.45m×1m. The two side surfaces and the middle of the top surface are welded with 5cm wide channel steel for reinforcement and fixation. Holes are drilled every 0.1m in the inner layer of the angle steel of the upper and lower frames of the front and back sides, and 22 steel wire ropes are installed, with a total of 24 wire ropes on the front and back sides; 3 lifting ears 18 are welded in the middle and both sides of the top channel steel 15; the lifting steel rope is hung in the top central lifting ear 18, and slide rails 21 matching the size of the channel steel are fixedly installed on both sides of the water inlet channel, and a 1t-level column-type electric lifting device is installed on one side of the top of the water inlet channel.

[0083] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6In this embodiment, the specific manufacturing process of the trash screen 1 requires that each unit is straight and burrs and rust are removed, the welding parts are required to have a smooth transition, no slag inclusions, no cold welds, no pores and other defects, and the overall warping of the components after welding shall not be greater than 7mm in the horizontal direction and 5mm in the vertical direction; when each component is welded, the maximum deviation of its symmetry center shall not exceed 1mm; the steel wire rope 2 is made of stainless steel wire, and its mechanical properties must meet the relevant requirements of YB / T5294-2009; a slide rail 21 matching the size of the channel steel is installed in the coarse screen sewage inlet channel, and expansion and fixing on both sides are required. When the trash screen 1 is hoisted, it can be ensured that the trash screen 1 is steadily lowered into the channel 22 along the slide rail 21.

[0084] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , the specific use steps of the grid device for intercepting fibrous pollutants in sewage in this embodiment are as follows: after the welding and production of the trash screen 1 is completed, the trash screen 1 is hoisted by a column-type electric lifting device along the direction of the slide rail 21 and placed into the water inlet grid channel 22, and is located before the first grid machine. After it is put in place, the wire rope 2 is in a relaxed state; then, after opening the front and rear water inlet gates of the channel 22, after using it for a period of time, the trash screen 1 is hoisted to check the interception of debris around the wire rope 2, and the trash screen 1 is put back into the channel 22 after most of the entanglements are cleared; note that after the trash screen 1 is hoisted to the ground, the column-type hoisting device must be swung in time, and the trash screen 1 must be placed on the ground before cleaning; when hoisting the trash screen 1 into the channel 22, it is necessary to put it in place and keep the wire rope 2 in a relaxed state.

[0085] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A grid device for intercepting fibrous pollutants in sewage, characterized in that: including trash screens; The trash screen is a rectangular structure, and a plurality of steel wire ropes are provided on both sides of the trash screen, the steel wire ropes are spaced apart from each other, and the two ends of the steel wire ropes are respectively fixedly connected to the top and the bottom of the trash screen; The height of the trash screen is greater than the height of the sewage.

2. A grid device for intercepting fibrous pollutants in sewage according to claim 1, characterized in that: The gap between adjacent steel wire ropes is greater than or equal to ten centimeters.

3. A grid device for intercepting fibrous pollutants in sewage according to claim 1, characterized in that: The trash grill comprises a first vertical angle steel, a second vertical angle steel, a third vertical angle steel and a fourth vertical angle steel, wherein the first vertical angle steel, the second vertical angle steel, the third vertical angle steel and the fourth vertical angle steel are parallel to each other and symmetrically distributed.

4. A grid device for intercepting fibrous pollutants in sewage according to claim 3, characterized in that: The bottom ends of the first vertical angle steel, the second vertical angle steel, the third vertical angle steel and the fourth vertical angle steel are provided with a first bottom transverse angle steel, a second bottom transverse angle steel, a first bottom vertical angle steel and a second bottom vertical angle steel; Two ends of the first bottom transverse angle steel are respectively fixedly connected to the bottom end of the first vertical angle steel and the bottom end of the second vertical angle steel; Two ends of the second bottom transverse angle steel are respectively fixedly connected to the bottom end of the third vertical angle steel and the bottom end of the fourth vertical angle steel; Two ends of the first bottom vertical angle steel are respectively fixedly connected to the bottom end of the first vertical angle steel and the bottom end of the fourth vertical angle steel; Two ends of the second bottom vertical angle steel are respectively fixedly connected to the bottom end of the second vertical angle steel and the bottom end of the third vertical angle steel.

5. A grid device for intercepting fibrous pollutants in sewage according to claim 4, characterized in that: The top ends of the first vertical angle steel, the second vertical angle steel, the third vertical angle steel and the fourth vertical angle steel are provided with a first top transverse angle steel, a second top transverse angle steel, a first top vertical angle steel and a second top vertical angle steel; Two ends of the first top transverse angle steel are respectively fixedly connected to the top end of the first vertical angle steel and the top end of the second vertical angle steel; Two ends of the second top transverse angle steel are respectively fixedly connected to the top end of the third vertical angle steel and the top end of the fourth vertical angle steel; Two ends of the first top vertical angle steel are respectively fixedly connected to the top end of the first vertical angle steel and the top end of the fourth vertical angle steel; Two ends of the second top vertical angle steel are respectively fixedly connected to the top end of the second vertical angle steel and the top end of the third vertical angle steel.

6. A grid device for intercepting fibrous pollutants in sewage according to claim 5, characterized in that: A top channel steel is provided between the first top vertical angle steel and the second top vertical angle steel, and both ends of the top channel steel are vertically fixedly connected to the middle sections of the first top vertical angle steel and the second top vertical angle steel, respectively, and the top channel steel and the first top transverse angle steel and the second top transverse angle steel are spaced apart and parallel to each other.

7. A grid device for intercepting fibrous pollutants in sewage according to claim 5, characterized in that: A first side channel steel is disposed on the outer side of the first bottom vertical angle steel and the first top vertical angle steel, and two ends of the first side channel steel are respectively vertically fixedly connected to the middle sections of the outer side surfaces of the first bottom vertical angle steel and the first top vertical angle steel; Second side channel steels are provided on the outer sides of the second bottom vertical angle steel and the second top vertical angle steel, and two ends of the second side channel steels are respectively vertically fixedly connected to the middle sections of the outer sides of the second bottom vertical angle steel and the second top vertical angle steel.

8. A grid device for intercepting fibrous pollutants in sewage according to claim 6, characterized in that: The top surfaces of the first top vertical angle steel, the second top vertical angle steel and the top channel steel are all provided with lifting ears, and the lifting ears are fixedly connected to the top surfaces of the first top vertical angle steel, the second top vertical angle steel and the top channel steel; The first top vertical angle steel, the second top vertical angle steel and the lifting ears on the top surface of the top channel steel are all located in the same longitudinal direction.

9. A grid device for intercepting fibrous pollutants in sewage according to claim 5, characterized in that: A plurality of symmetrical first mounting holes are formed on the first bottom transverse angle steel and the first top transverse angle steel, and the plurality of first mounting holes are evenly distributed longitudinally along the first bottom transverse angle steel and the first top transverse angle steel; Two ends of the plurality of steel wire ropes are respectively fixedly connected to the first mounting hole of the first bottom transverse angle steel and the first mounting hole of the first top transverse angle steel; A plurality of symmetrical second mounting holes are formed on the second bottom transverse angle steel and the second top transverse angle steel, and the plurality of second mounting holes are evenly distributed longitudinally along the second bottom transverse angle steel and the second top transverse angle steel; Two ends of the plurality of steel wire ropes are respectively fixedly connected to the second mounting hole of the second bottom transverse angle steel and the second mounting hole of the second top transverse angle steel.

10. A grid device for intercepting fibrous pollutants in sewage according to claim 1, characterized in that: The trash grille and the plurality of steel wire ropes are all made of 304 stainless steel.

Images