Sludge discharging and filtering grillage machine for municipal sewage treatment

Abstract

The utility model discloses a sludge discharging and filtering grillage machine for municipal sewage treatment, and belongs to the field of municipal sewage treatment. The sludge discharging and filtering grillage machine for municipal sewage treatment comprises an upper transmission belt, a second transmission roller is arranged in the middle of the interior of the upper transmission belt, a third transmission roller is arranged on one side of the interior of the upper transmission belt, and a pump is arranged on one side of the lower end of the upper transmission belt. The utility model solves the problem that the cleaning roller and the conveying belt are both damaged due to long-time continuous friction when the conveying belt in the conveying process is cleaned by the rotation of the cleaning roller in the existing filtering grid machine. The liquid is conveyed to the position between the second transmission roller and the third transmission roller, the pollution collecting frame used for filtering pollutants is conveyed and directly cleaned, the pollutants in the pollution collecting frame are actively pushed to be discharged, and cleaning of the pollution collecting frame is achieved.

Description

Technical Field

[0001] The utility model relates to the field of municipal sewage treatment, in particular to a sludge filtering grid machine for municipal sewage treatment. Background Art

[0002] Municipal sewage treatment filter screen machine is a kind of equipment specially used in municipal sewage treatment process. Its main function is to remove large suspended particles, floating objects and other solid impurities in sewage to protect the normal operation of subsequent treatment equipment. The screen machine intercepts solids in sewage through the bars or screens on it, separates them from the liquid, and thus purifies the water quality. This equipment plays a vital role in the municipal sewage treatment system and helps to improve sewage treatment efficiency and water quality.

[0003] A Chinese patent with publication number CN216604335U discloses a multifunctional crushing type filtering grid machine, including a cleaning roller, a cleaning brush installed on the outside of the cleaning roller, a third driving motor installed at one end of the sewage pool, the output shaft of the third driving motor is connected to the cleaning roller through a coupling, and the third driving motor drives the cleaning roller to rotate through the third driving motor, and the cleaning roller drives the outer cleaning brush to rotate so as to clean the debris stuck on the grid conveyor belt, thereby reducing the time and labor of manual cleaning and further improving work efficiency.

[0004] During the filtering process, the filter screen machine of the above patent relies on the rotation of the cleaning roller to clean the conveyor belt during the transmission process for a long time. The long-term continuous friction will cause damage to both the cleaning roller and the conveyor belt, affecting the service life of the equipment. In addition, the water tank needs to be cleaned regularly, which makes the continuity of the equipment poor during use and cannot continuously treat sewage for a long time. Utility Model Content

[0005] The purpose of the utility model is to provide a sludge filtering screen machine for municipal sewage treatment, which extracts liquid through a pump and diverts the liquid through a diversion pipe and an extension pipe, so that the liquid can be transmitted to between the second transmission roller and the third transmission roller, and the liquid is transmitted and directly cleaned to a pollution collection frame for filtering pollutants, actively promotes the discharge of pollutants inside the pollution collection frame, and realizes the cleaning of the pollution collection frame, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sludge filtering screen machine for municipal sewage treatment, comprising an upper transmission belt, a second transmission roller is arranged at the middle position inside the upper transmission belt, a third transmission roller is arranged on one side inside the upper transmission belt, a pump is arranged on one side of the lower end of the upper transmission belt, a second transmission pipe is sealed at the drainage end of the pump, a diversion pipe for diversion is arranged on one side outside the second transmission pipe, an extension pipe is arranged between the diversion pipe and the third transmission roller, and a nozzle facing the lower end is arranged at the lower end of each extension pipe.

[0007] Preferably, pollution collection frames for filtering sewage particles are evenly distributed around the outside of the upper transmission belt, and a lower transmission belt for transmission is arranged around the inside of the upper transmission belt. Concave water leakage cavities are arranged transversely through the inside of the upper transmission belt and the lower transmission belt in sequence.

[0008] Preferably, connecting blocks for connection are evenly distributed laterally between the lower transmission belt and the upper transmission belt, an active cavity is provided on one side outside the connecting block, and guide plates are provided at both front and rear ends inside the active cavity.

[0009] Preferably, a softening zone is provided on one side of the upper end of the upper transmission belt, and the second transmission pipe extends to the softening zone, and nozzles are evenly distributed laterally on the second transmission pipe at the softening zone.

[0010] Preferably, three extension tubes are arranged in sequence transversely between the second transmission roller and the third transmission roller.

[0011] Preferably, a first transmission roller is provided on the other side of the upper transmission belt, and connecting plates for rotational connection and support are provided at the front and rear ends of the first transmission roller, the second transmission roller and the third transmission roller, and an extension plate is provided at the middle position of the lower end of the connecting plate, and the extension plate and the connecting plate are an integral structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model uses a pump to extract liquid through the rear end of the first transmission tube close to the first transmission roller, wherein the obstruction of the upper transmission belt, the lower transmission belt and the first transmission roller can directly avoid the extraction of large particle materials, and the extracted liquid is separated by the shunt tube and then transported to between the third transmission roller and the second transmission roller through the extension tube, and the liquid is sprayed toward the pollution collection frame in a tilted state at the lower end through the nozzle outside the extension tube, and the liquid will directly pass through the reserved leakage cavity to contact the sludge inside the pollution collection frame, soften the sludge so that the sludge can be directly fallen off from the pollution collection frame, and the soil is prevented from adhering to the pollution collection frame to avoid making it difficult to clean. At the same time, the pollution collection frame used for filtering is directly cleaned by extracting the filtered liquid, which can directly avoid the need for external medium during the operation of the equipment, and avoid the need for the user to regularly and quantitatively replenish the medium required for the operation of the equipment. On the other hand, the flushing of the pollution collection frame by the liquid can avoid the heat and friction damage generated by friction cleaning, and there is no need to regularly replace and clean the cleaning roller used for friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall external structure of the utility model;

[0015] Figure 2 It is a cross-sectional view of the structure between the second transmission roller and the third transmission roller of the utility model;

[0016] Figure 3 For the utility model Figure 2 The A area in the middle is partially enlarged;

[0017] Figure 4 For the utility model Figure 2 The middle B area is partially enlarged;

[0018] Figure 5 This is a front view of the external structure of the limiting piece of the utility model.

[0019] In the figure: 1. upper transmission belt; 2. pollution collection frame; 3. connecting plate; 4. first transmission roller; 5. second transmission roller; 6. third transmission roller; 7. extension plate; 8. pump; 9. first transmission pipe; 10. second transmission pipe; 11. softening zone; 12. diverter pipe; 13. extension pipe; 14. pouring chamber; 15. cleaning zone; 16. lower transmission belt; 17. water leakage chamber; 18. guide plate; 19. movable chamber; 20. connecting block; 21. limiting plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In order to solve the problem that the existing filter screen machine relies on the rotation of the cleaning roller to clean the conveyor belt during the transmission process for a long time during the filtration process, the long-term continuous friction will cause damage to both the cleaning roller and the conveyor belt, affecting the service life of the equipment, and the water tank needs to be cleaned regularly, resulting in poor continuity during the use of the equipment and the inability to continuously treat sewage for a long time, this embodiment provides the following technical solutions:

[0022] A sludge filter screen machine for municipal sewage treatment comprises an upper transmission belt 1, and pollution collection frames 2 for filtering sewage particles are evenly distributed around the outer surface of the upper transmission belt 1, and the pollution collection frames 2 and the upper transmission belt 1 are an integrated structure, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a lower transmission belt 16 for transmission is arranged around the interior of the upper transmission belt 1, and connecting blocks 20 for connection are evenly distributed laterally between the lower transmission belt 16 and the upper transmission belt 1, and an active cavity 19 is arranged on one side of the outer side of the connecting block 20, and guide pieces 18 are arranged at both the front and rear ends of the active cavity 19. During the transmission process of the upper transmission belt 1 and the lower transmission belt 16, the guide piece 18 slides in the active cavity 19 area between the lower transmission belt 16 and the upper transmission belt 1, and the sliding thereby limits the moving tracks of the upper transmission belt 1 and the lower transmission belt 16. The recessed position generated by the limitation of the guide piece 18 can directly avoid affecting the transmission of the pollution collection frame 2 compared with the prior art, and can also avoid the transmission structure extending to the front and rear ends causing the sewage to flow away to the extended position on both sides of the total equipment;

[0023] In this embodiment, if Figure 1 and Figure 2 A softening zone 11 is provided on one side of the upper end of the upper transmission belt 1, and a pump 8 is provided on one side of the lower end of the upper transmission belt 1. The pumping end of the pump 8 is sealedly connected to the first transmission pipe 9, and the drainage end of the pump 8 is sealedly connected to the second transmission pipe 10, and the second transmission pipe 10 extends to the softening zone 11. The pump 8 directly extracts the sewage filtered by the equipment to avoid the particles in the sewage from causing the pump 8 to be blocked and damaged. The second transmission pipe 10 at the softening zone 11 is evenly distributed with nozzles in the horizontal direction. The sewage in the second transmission pipe 10 will be directly sprayed out from the nozzles and continuously contact the pollutants in the pollution collection frame 2, so as to avoid the pollutants from being closely attached to the pollution collection frame 2 and affecting the subsequent dumping and cleaning of the pollution collection frame 2;

[0024] In this embodiment, a second transmission roller 5 is disposed in the middle of the upper transmission belt 1, and a third transmission roller 6 is disposed on one side of the upper transmission belt 1. Figure 1 and Figure 2 As shown, a shunt pipe 12 for shunting is provided on one side of the outside of the second transmission pipe 10, and an extension pipe 13 is provided between the shunt pipe 12 and the second transmission roller 5 and the third transmission roller 6. Three extension pipes 13 are arranged in sequence transversely between the second transmission roller 5 and the third transmission roller 6, and the lower ends of the extension pipes 13 are all provided with nozzles facing the lower ends. The sewage transmitted and sprayed through the extension pipes 13 can directly clean the pollution collection frame 2. While cleaning the pollution collection frame 2, the pollutants retained in the pollution collection frame 2 can be discharged to prevent the pollutants from being transmitted to the sewage again along with the pollution collection frame 2;

[0025] In this embodiment, a first transmission roller 4 is provided on the other side of the upper transmission belt 1, and a connecting plate 3 for rotational connection and support is provided at both the front and rear ends of the first transmission roller 4, the second transmission roller 5 and the third transmission roller 6. Figure 1 , Figure 2 and Figure 5 As shown, an extension piece 7 is provided at the middle position of the lower end of the connecting plate 3, and the extension piece 7 and the connecting plate 3 are an integral structure, and the connecting plate 3 is welded and fixed to the guide piece 18. The transmission tracks of the upper transmission belt 1 and the lower transmission belt 16 can be limited and fixed by welding the connecting plate 3 to the guide piece 18;

[0026] In this embodiment, both sides of the outer sides of the two third transmission rollers 6 are provided with limiting plates 21, and the limiting plates 21 are integrated with the front and rear ends of the lower transmission belt 16. The limiting plates 21 wrap the front and rear ends of the third transmission roller 6, the second transmission roller 5 and the first transmission roller 4 to prevent the upper transmission belt 1 from falling off to the outside of the device during rotation. Figure 1 and Figure 5 As shown, the interior of the limiting sheet 21 is uniformly distributed with triangular depressions in the transverse direction, and the depressions can be used to generate bending at the transmission positions of the first transmission roller 4, the second transmission roller 5 and the third transmission roller 6;

[0027] In this embodiment, a dumping cavity 14 is provided on one side of the outside of the third transmission roller 6. During the transmission process, the pollution collection frame 2 will be turned over, and the internal sludge will be dumped. Figure 1 and Figure 2 As shown, a cleaning area 15 is transversely arranged at the lower end of the third driving roller 6, and the liquid discharged through the extension pipe 13 can clean the contaminated collection frame 2 in the cleaning area 15;

[0028] In this embodiment, the interior of the upper transmission belt 1 and the lower transmission belt 16 are laterally penetrated by recessed water leakage cavities 17, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the depression of the water leakage chamber 17 can facilitate the pump 8 to extract the liquid and allow the liquid to contact and contaminate the collection frame 2 .

[0029] Working principle: When the device is used and sewage is pre-treated, when the sewage flows toward the upper transmission belt 1 in the inclined position, the motor connected to the second transmission roller 5 is started, and the motor drives the second transmission roller 5 to rotate and transmit under the support of the third transmission roller 6, the first transmission roller 4 and the guide plate 18, and drives the pollution collection frame 2 at a uniform speed to invade the flowing liquid to grab sludge and garbage. The grabbed sludge and garbage will be drained in the pollution collection frame 2 in the inclined state. After continuous transmission, the pollution collection frame 2 will pass through the softening area 11, the pouring cavity 14 and the cleaning area 15 in turn and then invade the sewage again. During the transmission process of the pollution collection frame 2, the pump 8 is started to extract the sewage through the first transmission pipe 9. The filtered sewage is transmitted through the second transmission pipe 10 and then sprayed out from the nozzle at the softening area 11, which continuously wets the pollution collection frame 2 after drainage and the sludge inside, so as to be directly poured out at the pouring chamber 14 due to the inertia of rotation. The liquid extracted by the pump 8 will be diverted through the diversion pipe 12 and the extension pipe 13, and then sprayed out from between the second transmission roller 5 and the third transmission roller 6 toward the pollution collection frame 2 at the cleaning area 15 through the correspondingly connected nozzle, actively cleaning the inside of the pollution collection frame 2 through the leakage chamber 17. At the same time, the sprayed liquid can also cause the pollutants that are not dumped at the pouring chamber 14 to be discharged, so as to prevent the pollutants from being transmitted to the sewage again along with the pollution collection frame 2.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A sludge filter screen machine for municipal sewage treatment, comprising an upper transmission belt (1), a second transmission roller (5) is arranged at a middle position inside the upper transmission belt (1), and a third transmission roller (6) is arranged on one side inside the upper transmission belt (1), characterized in that: A pump (8) is provided on one side of the lower end of the upper transmission belt (1), and a drainage end of the pump (8) is sealed and connected to a second transmission pipe (10), and a diversion pipe (12) for diversion is provided on one side outside the second transmission pipe (10), and an extension pipe (13) is provided between the diversion pipe (12) and the second transmission roller (5) and the third transmission roller (6), and a nozzle is provided at the lower end of each extension pipe (13) facing the lower end.

2. A sludge filter screen machine for municipal sewage treatment according to claim 1, characterized in that: A pollution collection frame (2) for filtering sewage particles is evenly distributed around the outside of the upper transmission belt (1), a lower transmission belt (16) for transmission is arranged around the inside of the upper transmission belt (1), and recessed water leakage cavities (17) are arranged in sequence and transversely penetrate the interior of the upper transmission belt (1) and the lower transmission belt (16).

3. A sludge filter screen machine for municipal sewage treatment according to claim 2, characterized in that: Connecting blocks (20) for connection are evenly distributed laterally between the lower transmission belt (16) and the upper transmission belt (1), an active cavity (19) is provided on one side outside the connecting block (20), and guide plates (18) are provided at both front and rear ends inside the active cavity (19).

4. The sludge filter screen machine for municipal sewage treatment according to claim 1, characterized in that: A softening zone (11) is provided on one side of the upper end of the upper transmission belt (1), and the second transmission pipe (10) extends to the softening zone (11), and nozzles are evenly distributed laterally on the second transmission pipe (10) at the softening zone (11).

5. The sludge filter screen machine for municipal sewage treatment according to claim 1, characterized in that: Three extension tubes (13) are arranged in sequence in the transverse direction between the second transmission roller (5) and the third transmission roller (6).

6. The sludge filter screen machine for municipal sewage treatment according to claim 1, characterized in that: A first transmission roller (4) is arranged on the other side of the interior of the upper transmission belt (1), and the front and rear ends of the first transmission roller (4), the second transmission roller (5) and the third transmission roller (6) are all provided with a plurality of rollers for rotating the transmission belt. A connecting plate (3) for connection and support, wherein an extension piece (7) is provided at the middle position of the lower end of the connecting plate (3). Furthermore, the extension piece (7) and the connecting plate (3) are an integral structure.

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