Sewage treatment grillage machine

Abstract

The utility model discloses a sewage treatment grillage machine, which belongs to the technical field of sewage treatment, and comprises two racks, an impurity filtering and conveying mechanism is arranged between the two racks, the impurity filtering and conveying mechanism comprises a conveying grid, the conveying grid is provided with an inclined section and a horizontal section, one end of the conveying grid is provided with a cleaning assembly, and the other end of the conveying grid is provided with a cleaning assembly. A conveying grid is arranged on the rack, an extrusion mechanism is arranged above the conveying grid, the extrusion mechanism comprises an extrusion roller, the extrusion roller is located above the horizontal section of the conveying grid, the extrusion mechanism further comprises a supporting assembly and a power assembly, the supporting assembly is located below the extrusion roller, two guide rods are fixedly connected between the rack, and a stirring assembly is slidably connected between the two guide rods. The device has the beneficial effects that impurities conveyed on the conveying grid are extruded through the extrusion rollers, redundant water in the impurities is extruded out, the adhesive force between the impurities and the conveying grid is reduced, and cleaning is convenient; and the dehydrated sundries are scattered through back-and-forth movement of the stirring assembly, so that the sundries fall off from the conveying grid conveniently.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a wastewater treatment bar screen. Background Technology

[0002] A bar screen is a solid-liquid separation device that can continuously remove impurities from fluids. It is an indispensable special equipment in the production processes of industries such as urban sewage treatment, waterworks, power plant inlets, textiles, food processing, papermaking, and leather. It is currently the most widely used solid-liquid screening equipment in China.

[0003] A search of Chinese Patent Publication No. CN222540503U reveals a bar screen for wastewater treatment. This design incorporates a sludge removal mechanism that controls a servo motor to rotate the output drive roller, thus driving the bar screen. Simultaneously, an air pump delivers air through an air pipe to the inside of a U-shaped tube, which is then ejected from the bottom of the U-shaped tube. This causes the sludge on the bar screen's surface to fall into the collection tank. The drive roller also drives a drive wheel, which, in conjunction with the driven wheel and belt, rotates a brush roller to remove the sludge from the bar screen's surface, preventing it from being carried back into the wastewater tank and affecting the wastewater treatment effect. This design solves the problem of existing bar screens failing to remove surface-adhered sludge, resulting in poor wastewater treatment performance.

[0004] However, the debris transported from the water contains a lot of moisture, which makes it sticky to the conveyor belt, making it difficult to clean and easy to stick to the brush rollers, thus affecting the cleaning effect. Utility Model Content

[0005] The purpose of this invention is to provide a wastewater treatment bar screen to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A wastewater treatment bar screen includes two symmetrically arranged frames, with a debris filtration and conveying mechanism between the two frames. The debris filtration and conveying mechanism includes a conveying bar with an inclined section and a horizontal section. A cleaning component is provided at one end of the conveying bar, and a squeezing mechanism is provided above the conveying bar. The squeezing mechanism includes a squeezing roller rotatably connected between the two frames, located above the horizontal section of the conveying bar. The squeezing mechanism also includes a support component and a power component. The support component is located below the squeezing roller, and the power component is used to drive the squeezing roller to rotate. Two guide rods located on one side of the squeezing roller are fixedly connected between the frames, and a slidable actuating component is connected between the two guide rods. A transmission component is provided between the actuating component and the squeezing roller, and the transmission component is used to drive the actuating component to move back and forth to break up the dewatered debris.

[0008] Preferably, the actuating assembly includes a mounting plate slidably connected between two guide rods, a plurality of grating teeth are fixedly connected to the bottom of the mounting plate, and a spring is fixedly connected between the front side of the mounting plate and the frame.

[0009] Preferably, the transmission assembly includes a connecting rod, which is fixedly connected to the rear side of the mounting plate and extends to the rear of the frame. A first wedge block is fixedly connected to the end of the connecting rod, and a second wedge block is fixedly connected to the rear end of the extrusion roller extending out of the frame. The first and second wedge blocks are used in conjunction.

[0010] Preferably, the support assembly includes a support roller fixedly connected between two frames, and a conveying grid passes between the extrusion roller and the support roller.

[0011] Preferably, the debris filtering and conveying mechanism further includes a drive wheel, a guide wheel, and a driven wheel rotatably connected between two frames. The drive wheel and the guide wheel are at the same horizontal height, and the driven wheel is located below the drive wheel. The conveying grid is wound around the drive wheel, the guide wheel, and the driven wheel. A conveying motor is fixedly connected to the rear side of the frame, and the output end of the conveying motor is connected to the drive wheel through a coupling.

[0012] Preferably, the power assembly includes a belt, a drive pulley, and a front end of the extrusion roller extending out of the frame and connected to the belt via a pulley.

[0013] Preferably, the cleaning assembly includes a brush roller rotatably connected between the frames, the front end of the brush roller extending out of the frame and fixedly connected to a driven gear, and a drive gear fixedly connected to the drive wheel, the drive gear meshing with the driven gear.

[0014] The beneficial effects are as follows: the squeezing rollers squeeze the debris conveyed on the conveying grid, squeezing out excess water from the debris, reducing the adhesion between the debris and the conveying grid, and making it easier to clean; the back-and-forth movement of the agitator disperses the dehydrated debris, making it easier for the debris to fall off the conveying grid, while reducing the amount of debris adhering to the brush rollers and affecting the cleaning effect.

[0015] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of a wastewater treatment bar screen according to the present invention;

[0018] Figure 2 This is a front view of a wastewater treatment bar screen according to the present invention;

[0019] Figure 3 This is a front view of the internal structure of a wastewater treatment bar screen as described in this utility model;

[0020] Figure 4 This is a top view of a wastewater treatment bar screen machine according to the present invention;

[0021] Figure 5 This is a schematic diagram of the mounting plate and grating teeth of a sewage treatment bar screen as described in this utility model.

[0022] The reference numerals in the attached drawings are explained as follows: 1. Frame; 201. Drive wheel; 202. Guide wheel; 203. Driven wheel; 204. Conveyor grid; 205. Conveyor motor; 301. Brush roller; 302. Drive gear; 303. Driven gear; 401. Squeeze roller; 402. Belt; 403. Support roller; 501. Guide rod; 502. Mounting plate; 503. Grate teeth; 504. Spring; 505. Connecting rod; 506. First wedge block; 507. Second wedge block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figures 1-5As shown, a wastewater treatment bar screen includes two symmetrically arranged frames 1, with a debris filtration and conveying mechanism between the two frames 1. The debris filtration and conveying mechanism includes a conveying bar 204, which has several through holes or slits to facilitate the flow of water from the debris. The conveying bar 204 has an inclined section and a horizontal section. The debris filtration and conveying mechanism also includes a driving wheel 201, a guide wheel 202, and a driven wheel 203 rotatably connected between the two frames 1. The driving wheel 201 and the guide wheel 202... 02 are at the same horizontal height. When the conveying grid 204 passes between the guide wheel 202 and the drive wheel 201, it is a horizontal section. The driven wheel 203 is located below the drive wheel 201. The conveying grid 204 is wrapped between the drive wheel 201, the guide wheel 202, and the driven wheel 203. When the conveying grid 204 passes between the driven wheel 203 and the guide wheel 202, it is an inclined section. The rear side of the frame 1 is bolted to the conveying motor 205. The output end of the conveying motor 205 is connected to the drive wheel 201 through a coupling.

[0027] A cleaning assembly is provided at one end of the conveying grid 204. The cleaning assembly includes a brush roller 301 rotatably connected between the frame 1. The front end of the brush roller 301 extends out of the frame 1 and is fixedly connected to a driven gear 303. A drive gear 302 is fixedly connected to the drive wheel 201, and the drive gear 302 meshes with the driven gear 303.

[0028] An extrusion mechanism is provided above the conveying grid 204. The extrusion mechanism includes an extrusion roller 401 rotatably connected between two frames 1. The extrusion roller 401 is located above the horizontal section of the conveying grid 204.

[0029] The extrusion mechanism also includes a support assembly located below the extrusion roller 401. The support assembly includes a support roller 403 fixedly connected between the two frames 1. The conveying grid 204 passes between the extrusion roller 401 and the support roller 403, and the support roller 403 supports the conveying grid 204 to improve the extrusion effect of the extrusion roller 401.

[0030] The extrusion mechanism also includes a power assembly for driving the extrusion roller 401 to rotate. The power assembly includes a belt 402, a drive pulley 201, and the front end of the extrusion roller 401 extends out of the frame 1 and is connected to the belt 402 via a pulley.

[0031] Two guide rods 501 located on one side of the extrusion roller 401 are fixedly connected between the frame 1. A toggle assembly is slidably connected between the two guide rods 501. The toggle assembly includes a mounting plate 502 slidably connected between the two guide rods 501. Several grating teeth 503 are fixedly connected to the bottom of the mounting plate 502. A spring 504 for resetting is fixedly connected between the front side of the mounting plate 502 and the frame 1.

[0032] A transmission assembly is provided between the actuating assembly and the extrusion roller 401. The transmission assembly is used to drive the actuating assembly to move back and forth to break up the impurities after dehydration. The transmission assembly includes a connecting rod 505, which is fixedly connected to the rear side of the mounting plate 502. The connecting rod 505 extends to the rear of the frame 1. A first wedge block 506 is fixedly connected to the end of the connecting rod 505. The rear end of the extrusion roller 401 extends out of the frame 1 and is fixedly connected to a second wedge block 507. The first wedge block 506 and the second wedge block 507 are used in conjunction.

[0033] Working principle: During use, the conveyor motor 205 is started, driving the drive wheel 201 to rotate. The drive wheel 201 drives the conveyor grid 204 to move slowly. Impurities in the sewage are filtered onto the conveyor grid 204, and then gradually conveyed upwards through the conveyor grid 204. Simultaneously, the drive wheel 201 rotates, driving the squeeze roller 401 to rotate via the transmission between the pulley and belt 402. The squeeze roller 401 squeezes the impurities conveyed on the conveyor grid 204, squeezing out excess water and reducing the adhesion between the impurities and the conveyor grid 204, facilitating cleaning. The rotation of the squeeze roller 401 also drives the second wedge block 507 to rotate. The tip of the second wedge block 507 drives the first... The wedge block 506 drives the connecting rod 505 and the mounting plate 502 to move backward. After the tip of the second wedge block 507 rotates away, the mounting plate 502 moves forward and resets under the elastic force of the spring 504. This causes the mounting plate 502 to drive the grate 503 to move back and forth, breaking up the dehydrated debris so that it can fall off the conveying grid 204. When the conveying grid 204 rotates to the side of the drive wheel 201, most of the debris falls off the conveying grid 204 under the action of gravity. At the same time, the drive wheel 201 rotates, driving the drive gear 302 to rotate. The drive gear 302 meshes with the driven gear 303, thereby driving the driven gear 303 to drive the brush roller 301 to rotate, cleaning the debris remaining on the conveying grid 204.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment bar screen, comprising two symmetrically arranged frames (1), a debris filtration and conveying mechanism disposed between the two frames (1), the debris filtration and conveying mechanism comprising a conveying bar (204), the conveying bar (204) having an inclined section and a horizontal section, and a cleaning component disposed at one end of the conveying bar (204), characterized in that: An extrusion mechanism is provided above the conveying grid (204). The extrusion mechanism includes an extrusion roller (401) rotatably connected between the two frames (1). The extrusion roller (401) is located above the horizontal section of the conveying grid (204). The extrusion mechanism also includes a support component and a power component. The support component is located below the extrusion roller (401). The power component is used to drive the extrusion roller (401) to rotate. Two guide rods (501) located on one side of the extrusion roller (401) are fixedly connected between the frames (1). A toggle component is slidably connected between the two guide rods (501). A transmission component is provided between the toggle component and the extrusion roller (401). The transmission component is used to drive the toggle component to move back and forth to break up the dehydrated impurities.

2. The wastewater treatment bar screen according to claim 1, characterized in that: The actuating assembly includes a mounting plate (502) slidably connected between the two guide rods (501), a plurality of grating teeth (503) are fixedly connected to the bottom of the mounting plate (502), and a spring (504) is fixedly connected between the front side of the mounting plate (502) and the frame (1).

3. A wastewater treatment bar screen according to claim 2, characterized in that: The transmission assembly includes a connecting rod (505) which is fixedly connected to the rear side of the mounting plate (502). The connecting rod (505) extends to the rear of the frame (1). A first wedge block (506) is fixedly connected to the end of the connecting rod (505). The rear end of the extrusion roller (401) extends out of the frame (1) and is fixedly connected to a second wedge block (507). The first wedge block (506) and the second wedge block (507) are used in cooperation.

4. A wastewater treatment bar screen according to claim 1, characterized in that: The support assembly includes a support roller (403) fixedly connected between the two frames (1), and the conveying grid (204) passes between the extrusion roller (401) and the support roller (403).

5. A wastewater treatment bar screen according to claim 1, characterized in that: The debris filtering and conveying mechanism also includes a drive wheel (201), a guide wheel (202), and a driven wheel (203) rotatably connected between the two frames (1). The drive wheel (201) and the guide wheel (202) are at the same horizontal height. The driven wheel (203) is located below the drive wheel (201). The conveying grid (204) is wrapped around the drive wheel (201), the guide wheel (202), and the driven wheel (203). A conveying motor (205) is fixedly connected to the rear side of the frame (1). The output end of the conveying motor (205) is connected to the drive wheel (201) through a coupling.

6. A wastewater treatment bar screen according to claim 5, characterized in that: The power assembly includes a belt (402), the front ends of the drive pulley (201) and the extrusion roller (401) extend out of the frame (1) and are connected to the belt (402) via pulleys.

7. A wastewater treatment bar screen according to claim 5, characterized in that: The cleaning assembly includes a brush roller (301) rotatably connected between the frame (1), the front end of the brush roller (301) extending out of the frame (1) and fixedly connected to a driven gear (303), and a drive gear (302) fixedly connected to the drive wheel (201), the drive gear (302) meshing with the driven gear (303).

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