Efficient filtering device for sewage treatment

Abstract

The utility model belongs to the technical field of sewage treatment, and relates to a high-efficiency filtering device for sewage treatment, which comprises a rack, a filtering part, a driving part, a backwashing assembly, a motor and a control box, the rack is divided into a water inlet tank, a pool body and a drainage tank, the filtering part is provided with a filtering turntable and a rotary drum and is arranged in the pool body, and the driving part comprises a transmission shaft and a driver. The transmission shaft drives the rotary drum to rotate through a gear, the backwashing assembly comprises a sludge suction port, a sewage discharge hose, a sewage discharge pipe and a suction pump, the motor drives a driver through a belt, the suction pump and the motor are both connected with the PLC, a sewage collection tank is arranged at the bottom in the tank body, the rotary drum is segmented, an internal tooth gear is arranged in the rotary drum, spur gears on the transmission shaft are divided into three groups, and the groups are meshed with the internal tooth gear. According to the utility model, the transmission shaft is controlled by the driver to drive different turntables, so that the disturbance of rotation of the turntables to water flow in the filter tank in a backwashing process is reduced, the static turntables can continue to perform an efficient filtering process, and the overall efficiency of the filter device is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewage treatment technical field, and specifically relates to a high -efficient filter device for sewage treatment. BACKGROUND

[0002] Industrial wastewater contains various chemical substances, heavy metals, oils, acids and bases and other harmful substances. In the treatment of industrial wastewater, a fiber rotating disc filter is often used to remove suspended solids, solid particles and oil stains in the wastewater to remove specific pollutants and meet environmental discharge requirements.

[0003] The existing fiber rotating disc filter system comprises a filter system, a backwashing system, an electric control system, a water pump and the like. The fiber rotating disc filter intercepts impurities in water through filter cloth of the filter system to reduce the concentration of suspended solids in water.

[0004] However, when the filter pool in the prior art is backwashed, all the filter discs in the filter pool are rotated by the rotating drum, which greatly disturbs the impurity precipitation process in the wastewater and affects the overall filtration efficiency. UTILITY MODEL CONTENTS

[0005] To solve the above problems in the prior art, the utility model provides a high -efficient filter device for sewage treatment which can group-wash the filter discs during backwashing and avoid disturbing the impurity precipitation process.

[0006] To achieve the above technical purposes, the utility model adopts the following technical solutions:

[0007] A high -efficient filter device for sewage treatment, comprising a rack, a filter component, a driving component, a backwashing assembly, a motor and a control box, wherein the rack comprises a water inlet tank, a pool body and a drain tank, and the filter component is installed inside the pool body.

[0008] Further, the filter component comprises a filter disc and a rotating drum, the filter disc and the rotating drum are coaxially fixedly installed, and the filter disc is provided with a bearing at one end.

[0009] Further, the driving component comprises a transmission shaft and a transmission device, the transmission shaft is installed on the axis of the rotating drum through a spur gear, the transmission device is installed outside the pool body, the power input end of the transmission shaft is connected with the inner sleeve of the transmission device through a buckle, the end of the transmission shaft is connected with an adjusting push-pull handle, and the power output end of the motor is connected with the sleeve through a belt.

[0010] Further, the backwashing assembly comprises a sludge suction port, a blow-off hose, a blow-off pipe and a suction pump, the sludge suction port is installed close to both sides of the filter disc, the sludge suction port is connected with the blow-off pipe at the bottom of the rack through the blow-off hose, and the blow-off pipe extends to the outside of the pool body and is connected with the suction pump.

[0011] Further, the pool body inner bottom is a sump with an inverted bucket type, and the sewage pipe is installed at the sump bottom.

[0012] Further, the rotating drum is divided into multiple sections, each section is fixedly installed with a filter rotating disc, and an inner tooth gear is fixedly installed in the rotating drum.

[0013] Further, the transmission shaft is provided with spur gears, the spur gears are divided into a first gear set, a second gear set and a third gear set, the distance between two spur gears in the gear set is fixed as the distance between the inner tooth gears of the rotating drums, and the distance between the gear sets is greater than the distance between the two filter rotating discs.

[0014] Further, the control box is provided with a timer and a water level gauge connected with a PLC controller, and the suction pump and the motor are connected with the PLC controller in the control box.

[0015] According to the above technical scheme, the beneficial effects of the utility model are that the rotating drum is segmented and combined with the rotating disc, different rotating discs are driven by the transmission shaft through the transmission device, the disturbance of the rotating disc rotation to the water flow in the filter tank in the backwashing process is reduced, the stationary rotating disc can continue the efficient filtering process, and the overall efficiency of the filtering device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the efficient filtering device for sewage treatment.

[0017] Figure 2 It is a schematic diagram of the internal structure of the efficient filtering device for sewage treatment.

[0018] Figure 3 It is a partial enlarged view of the efficient filtering device for sewage treatment.

[0019] 1 - frame, 11 - water inlet tank, 12 - pool body, 13 - water outlet tank, 2 - filtering component, 21 - filter rotating disc, 22 - rotating drum, 23 - bearing, 24 - bearing seat, 25 - inner tooth gear, 3 - driving component, 31 - transmission shaft, 32 - transmission device, 33 - spur gear, 331 - first gear set, 332 - second gear set, 333 - third gear set, 34 - sleeve, 35 - push-pull handle, 4 - backwashing assembly, 41 - sludge suction port, 42 - sewage hose, 43 - sewage pipe, 44 - suction pump, 5 - motor, 6 - control box. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the technical scheme implemented by the utility model, the utility model will be described in detail below in combination with the drawings and examples.

[0021] Referring toFigures 1-2 The utility model provides a high -efficient filter device for sewage treatment, including frame 1, filter part 2, drive part 3, backwashing subassembly 4, motor 5, control box 6, the frame 1 includes water inlet groove 11, pool body 12, drain tank 13, filter part 2 is installed in the inside of pool body 12.

[0022] Refer to Figures 1-2 Filter part 2 includes filter rotary disc 21 and rotary drum 22, filter rotary disc 21 and rotary drum 22 are coaxially fixedly installed, and filter rotary disc 21 is provided with bearing seat 24 at one end.

[0023] Refer to Figures 1-2 Drive part 3 includes transmission shaft 31 and transmission 32, transmission shaft 31 is installed on the axis of rotary drum 22 through spur gear 33, transmission 32 is installed on the outside of pool body 12, the power input end of transmission shaft 31 is connected with the inner sleeve 34 of transmission 32 through buckle, and the end of transmission shaft 31 is connected with adjusting push-pull block 35, and the power output end of motor 5 is connected with sleeve 34 through belt, when needing to change the filter rotary disc 21 of backwashing, the buckle of sleeve 34 and transmission shaft 31 is loosened, push-pull block 35 is pushed, transmission shaft 31 is driven to move forward, and the drive of transmission shaft 31 to different rotary drums 22 is adjusted.

[0024] Refer to Figures 1-2 Backwashing subassembly 4 includes sludge suction port 41, blow-off hose 42, blow-off pipe 43 and suction pump 44, sludge suction port 41 is installed closely on both sides of filter rotary disc 21, sludge suction port 41 is connected with blow-off pipe 43 at the bottom of frame 1 through blow-off hose 42, blow-off pipe 43 extends to the outside of pool body 12 and is connected with suction pump 44, sludge suction port 41 is closely installed on both sides of filter rotary disc 21, when the rotary disc rotates, the sludge filtered on the surface of rotary disc is sucked into blow-off hose 42 by sludge suction port 41, blow-off pipe 43 sucks the sludge deposited in the sludge collecting tank 14 into the pipe, and the sludge is discharged outside the pool by suction pump 44.

[0025] Refer to Figures 1-2 The bottom of pool body 12 is the sludge collecting tank 14 of inverted bucket type, blow-off pipe 43 is installed at the bottom of sludge collecting tank 14, and the impurities in pool body 12 are deposited and fall into sludge collecting tank 14, and the sludge in pool body is discharged by blow-off pipe 43 through suction pump 44 during backwashing.

[0026] Refer to Figures 1-2 Rotary drum 22 is divided into multiple sections, each section is fixedly installed with filter rotary disc 21, and each rotary drum 22 is connected through bearing 23, bearing 23 is installed in the sealed bearing seat 24 of rotary drum 22, and inner gear 25 is fixedly installed in rotary drum 22, rotary drum 22 adopts sectional design, drives the rotary disc fixedly connected with rotary drum 22 to rotate when driving filter rotary disc 21 to rotate, and disturbance is avoided.

[0027] Referring to Figures 1-2 , the transmission shaft 31 is provided with spur gears 33, the spur gears 33 are divided into first gear set 331, second gear set 332 and third gear set 333, the interval of two spur gears 33 in the gear set is fixed as the interval of two filter rotary discs 21, the interval between the gear sets is greater than the interval between two filter rotary discs 21, the engagement of the spur gears 33 on the transmission shaft 31 and the internal gear 23 drives the rotation of the rotary drum 22, when the transmission 32 controls the depth of the transmission shaft 31 through the propulsion block 35, the originally engaged gear set is loosened, the transmission shaft 31 slides to the next gear set to engage, drives different rotary drums 22 to rotate, realizes the group backwashing of the filter rotary disc 21, and improves the overall efficiency of the filtering device.

[0028] Referring to Figures 1-2 , the control box 6 is provided with a timer and a water level gauge connected with a PLC controller, the suction pump 44 and the motor 5 are connected with the PLC controller in the control box 6, when the water level reaches the design, the PLC controller starts the suction pump 44 and the motor 5, the timer starts timing, after cleaning to a certain time, the transmission 32 controls the transmission shaft 31 to drive different rotary drums, and after all cleaning is completed within the set time, the suction pump 44 and the motor 5 are turned off, and the next backwashing is started.

[0029] According to the above embodiment, the working process of the utility model is as follows:

[0030] The sewage is introduced into the water inlet groove 11, the sewage enters the pool body 12 from the water inlet groove 11 through overflow, the sewage starts the filtering process after immersing the filter rotary disc, the water passes through the filter cloth on the filter rotary disc 21, enters the rotary drum 22, enters the drain groove 13 after passing through the rotary drum 22, part of the solid impurities are deposited into the sewage collecting groove 14, and the remaining impurities are intercepted on the surface of the filter rotary disc 21, when the water amount in the pool body 12 reaches the set value, the PLC controller in the control box 6 controls the motor 5 to start, the first gear set 331 of the transmission shaft 31 is engaged with the internal gear 25 of the first group of rotary drums 22, the motor 5 drives the sleeve 34 to rotate through the belt, the transmission shaft 31 drives the first group of rotary drums 22 to rotate, and the PLC controller starts the suction pump 44, opens the valve on the sewage discharge hose 42 corresponding to the first group of rotary drums 22, and performs backwashing on the filter rotary disc 21, the backwashing process is carried out on the filter rotary disc 21 in groups, after the first group of backwashing is completed, the sleeve buckle is loosened, the rotation speed of the filter rotary disc 21 is slow, the disturbance to the water flow in the pool body is small, and the filtering process of the remaining filter rotary discs 21 is not affected, and the filtering efficiency of the overall device is improved.

[0031] The above disclosed embodiments of the utility model are only applicable to help expound the utility model. The preferred embodiments do not describe all the details, and also do not limit the utility model to be only the specific implementation mode. According to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole range and equivalents thereof.

Claims

1. A high efficiency filtration device for sewage treatment, characterized by: Including frame (1), filter component (2), drive component (3), backwashing assembly (4), motor (5), control box (6), the frame (1) includes water inlet tank (11), pool body (12), drain tank (13), the filter component (2) is installed in the inside of pool body (12); The filter component (2) includes filter rotary disc (21) and rotary drum (22), the filter rotary disc (21) and rotary drum (22) are coaxially fixedly installed, and the filter rotary disc (21) is provided with bearing (23) at one end; The drive component (3) includes transmission shaft (31) and transmission (32), the transmission shaft (31) is installed on the axis of rotary drum (22) through spur gear (33), the transmission (32) is installed outside pool body (12), the power input end of transmission shaft (31) is connected with the inner sleeve (34) of transmission (32) through buckle, the end of transmission shaft (31) is connected with adjusting push-pull block (35), and the power output end of motor (5) is connected with sleeve (34) through belt. The backwashing assembly (4) includes sludge suction port (41), blow-off hose (42), blow-off pipe (43) and suction pump (44), the sludge suction port (41) is installed closely on both sides of filter rotary disc (21), the sludge suction port (41) is connected with blow-off pipe (43) at the bottom of frame (1) through blow-off hose (42), and the blow-off pipe (43) extends to the outside of pool body (12) and is connected with suction pump (44).

2. The high efficiency filtration device for sewage treatment of claim 1, wherein: The bottom of pool body (12) is inverted bucket type sludge collecting tank (14), and the blow-off pipe (43) is installed at the bottom of sludge collecting tank (14).

3. The high efficiency filtration device for sewage treatment of claim 1, wherein: The rotary drum (22) is divided into multiple sections, each section is fixedly installed with filter rotary disc (21), and each rotary drum (22) is connected through bearing (23), the bearing (23) is installed in the sealed bearing seat (24) of rotary drum (22), and the inner gear (25) is fixedly installed in rotary drum (22).

4. The high efficiency filtration device for sewage treatment of claim 1, wherein: The transmission shaft (31) is provided with spur gear (33), the spur gear (33) is divided into first gear set (331), second gear set (332) and third gear set (333), the distance between two spur gears (33) in the gear set is fixed as the distance between inner gear (25) in rotary drum (22), and the distance between the gear sets is greater than the distance between two filter rotary discs (21).

5. The high efficiency filtration device for sewage treatment of claim 1, wherein: The control box (6) is provided with timer and water level gauge connected with PLC controller, and the suction pump (44) and motor (5) are connected with the PLC controller in control box (6).

Images