Filtering device for urban domestic sewage treatment

Abstract

The utility model discloses a filtering device for urban domestic sewage treatment, which comprises a filtering box and further comprises a filtering mechanism, the filtering mechanism is arranged in the filtering box, and the filtering mechanism comprises a water inlet pipe, a fixing ring, a filtering cylinder, a supporting ring, a spiral blade and a solid waste discharge pipe. A fixed ring is fixedly connected to the middle position in the filter box, a water inlet pipe communicated with the interior of the fixed ring is mounted at the water inlet end of the filter box, sewage entering the filter cartridge is subjected to solid-liquid separation, the motor drives the filter cartridge to rotate in the operation process, and internal solid impurities can be continuously overturned, so that the filter cartridge is prevented from being blocked, and the service life of the filter cartridge is prolonged. Meanwhile, in the rotating process of the filter cylinder, the spiral blades in the filter cylinder rotate synchronously, separated solid impurities can be moved to the two sides and discharged through the solid waste discharging pipe, and solid-liquid separate discharging treatment is carried out while solid-liquid separation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a filtering device for treating urban domestic sewage. Background Art

[0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements for discharge into a water body or reuse. Urban domestic sewage refers to the domestic sewage of urban residents, and the drainage of government agencies, schools, hospitals, commercial service agencies and various public facilities. In the process of treating this type of sewage, filtration equipment is first required to perform preliminary filtration treatment of the wastewater.

[0003] The existing sewage treatment filtration equipment has the following disadvantages when in use: when performing solid-liquid separation filtration treatment, the existing sewage treatment equipment generally uses a fixed structure filter plate for filtration. After a period of use, the filter plate will be blocked by solid impurities and requires frequent regular cleaning and maintenance. For this reason, we propose a filtration device for urban domestic sewage treatment. Utility Model Content

[0004] The main purpose of this utility model is to provide a filtering device for treating urban domestic sewage. By arranging a filtering mechanism inside the filter box, it can realize preliminary filtering treatment of sewage, realize solid-liquid separation and discharge, reduce the number of maintenance times, and effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A filtering device for treating urban domestic sewage comprises a filter box and a filtering mechanism, wherein a filtering mechanism is arranged inside the filter box, and the filtering mechanism comprises a water inlet pipe, a fixed ring, a filter cartridge, a supporting ring, spiral blades and a solid waste discharge pipe, a fixed ring is fixedly connected to the middle position inside the filter box, and a water inlet pipe connected to the interior of the fixed ring is installed at the water inlet end of the filter box, filter cartridges are arranged on both sides of the interior of the filter box, and the ends of the filter cartridges are respectively inserted into the two sides of the inner wall of the fixed ring, a supporting ring is welded on the outer periphery of the filter cartridge, and spiral blades are welded on the inner wall of the filter cartridge, solid waste discharge pipes are installed on both sides of the filter box surface, and the end of the filter cartridge away from the fixed ring is inserted into the interior of the solid waste discharge pipe.

[0007] Furthermore, it also includes a transmission mechanism, a transmission mechanism is arranged between the filter box and the filter cartridge, the transmission mechanism includes a gear ring, a motor, a transmission shaft and a gear, the outer circumference of the filter cartridge is welded with a gear ring, motors are installed on both sides of the surface of the filter box and the power output end of the motor is installed with a transmission shaft located inside the filter box, and the outer circumference of the transmission shaft is installed with a gear meshing with the gear ring; when the motor is running, its power end is decelerated by the reducer and drives the rotation of the transmission shaft and the gear, and the gear is meshed with the gear ring on the outer circumference of the filter cartridge. When the gear rotates, it can drive the rotation of the gear ring and then drive the rotation of the filter cartridge, so that internal solid impurities can be discharged.

[0008] Furthermore, support wheels corresponding to the position of the support ring are installed at the bottom of the inner wall of the filter box, and the support wheels are respectively placed on both sides of the bottom surface of the support ring; the support wheel structure at the bottom of the filter box cooperates with the support ring to support the filter cartridge structure without affecting the rotation of the filter cartridge.

[0009] Furthermore, a collecting trough located at the bottom of the filter cartridge is opened at the bottom of the inner wall of the filter box, and a waste liquid drain pipe connected to the collecting trough is welded to the bottom of the filter box; the sewage filtered by the filter cartridge will be discharged into the collecting trough and discharged along the waste liquid drain pipe.

[0010] Furthermore, reducers are installed on both sides of the filter box and the end of the transmission shaft is connected to the power output end of the reducer, and the power output end of the motor is connected to the power input end of the reducer; when the motor runs, its power end output is decelerated by the reducer and drives the rotation of the transmission shaft and gear.

[0011] Compared with the prior art, the present invention has the following beneficial effects: a fixed ring structure is provided inside the filter cartridge and rotatable filter cartridge structures are installed on both sides of the fixed ring. The urban domestic sewage to be treated is discharged from the water inlet pipe into the fixed ring and into the filter cartridge. The sewage after entering the filter cartridge is subjected to solid-liquid separation, and the wastewater is directly discharged outside, while the solid impurities are retained inside the filter cartridge. During operation, the motor will drive the rotation of the filter cartridge, and the internal solid impurities will also continue to turn over, thereby avoiding clogging of the filter cartridge and ensuring filtration efficiency. At the same time, during the rotation of the filter cartridge, its internal spiral blades rotate synchronously, which can move the separated solid impurities to both sides and discharge them through the solid waste discharge pipe, realizing solid-liquid separation while performing solid-liquid separation and treatment; when the motor is running, its power end drives the rotation of the transmission shaft and gear after being decelerated by the reducer, and the gear is engaged with the gear ring on the outer periphery of the filter cartridge. When the gear rotates, it can drive the rotation of the gear ring and then drive the rotation of the filter cartridge, so that the internal solid impurities can be discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the utility model filtering device for treating urban domestic sewage.

[0013] Figure 2 This is a schematic diagram of the internal structure of the filter box of the utility model filter device for treating urban domestic sewage.

[0014] Figure 3 This is a schematic diagram of the connection structure between the filter cartridge and the support ring of the filter device for treating urban domestic sewage in the present utility model.

[0015] In the figure: 1. Filter box; 2. Filter mechanism; 201. Water inlet pipe; 202. Fixing ring; 203. Filter cartridge; 204. Supporting ring; 205. Support wheel; 206. Spiral blade; 207. Solid waste discharge pipe; 208. Collecting trough; 209. Waste liquid discharge pipe; 3. Transmission mechanism; 301. Gear ring; 302. Motor; 303. Reducer; 304. Transmission shaft; 305. Gear. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0017] like Figure 1-3 As shown, a filtering device for treating urban domestic sewage includes a filter box 1 and a filter mechanism 2. The filter mechanism 2 is arranged inside the filter box 1, and the filter mechanism 2 includes a water inlet pipe 201, a fixing ring 202, a filter cartridge 203, a supporting ring 204, a spiral blade 206 and a solid waste discharge pipe 207. The fixing ring 202 is fixedly connected to the middle position inside the filter box 1, and the water inlet end of the filter box 1 is equipped with a water inlet pipe 201 connected to the inside of the fixing ring 202. Filter cartridges 203 are provided on both sides of the filter box 1, and the ends of the filter cartridges 203 are respectively inserted into the two sides of the inner wall of the fixing ring 202, the outer periphery of the filter cartridge 203 is welded with a supporting ring 204, and the inner wall of the filter cartridge 203 is welded with a spiral blade 206. Solid waste discharge pipes 207 are installed on both sides of the filter box surface, and the end of the filter cartridge 203 away from the fixing ring 202 is inserted into the solid waste discharge pipe 207.

[0018] Wherein, it also includes a transmission mechanism 3, a transmission mechanism 3 is arranged between the filter box 1 and the filter cartridge 203, the transmission mechanism 3 includes a gear ring 301, a motor 302, a transmission shaft 304 and a gear 305, the outer periphery of the filter cartridge 203 is welded with a gear ring 301, the motor 302 is installed on both sides of the surface of the filter box 1, and the power output end of the motor 302 is installed with a transmission shaft 304 located inside the filter box 1, and the outer periphery of the transmission shaft 304 is installed with a gear 305 meshing with the gear ring 301; when the motor 302 is running, its power end is decelerated by the reducer 303 and drives the rotation of the transmission shaft 304 and the gear 305, and the gear 305 is meshed with the gear ring 301 on the outer periphery of the filter cartridge 203. When the gear 305 rotates, it can drive the rotation of the gear ring 301 and then drive the rotation of the filter cartridge 203, so that internal solid impurities can be discharged.

[0019] Among them, a supporting wheel 205 corresponding to the position of the supporting ring 204 is installed at the bottom of the inner wall of the filter box 1, and the supporting wheels 205 are respectively placed on both sides of the bottom surface of the supporting ring 204. A collecting trough 208 located at the bottom of the filter cartridge 203 is opened at the bottom of the inner wall of the filter box 1, and a waste liquid drain pipe 209 connected to the collecting trough 208 is welded to the bottom of the filter box 1; the supporting wheel 205 structure at the bottom of the filter box 1 cooperates with the supporting ring 204 to support the filter cartridge 203 structure without affecting the rotation of the filter cartridge 203. The sewage filtered by the filter cartridge 203 will be discharged into the collecting trough 208 and discharged along the waste liquid drain pipe 209.

[0020] Among them, reducers 303 are installed on both sides of the inside of the filter box 1 and the end of the transmission shaft 304 is connected to the power output end of the reducer 303, and the power output end of the motor 302 is connected to the power input end of the reducer 303; when the motor 302 runs, its power end output is decelerated by the reducer 303 and drives the rotation of the transmission shaft 304 and the gear 305.

[0021] It should be noted that the present invention is a filtering device for treating urban domestic sewage. When in use, a fixed ring 202 structure is provided inside the filter cartridge 203 and a rotatable filter cartridge 203 structure is installed on both sides of the fixed ring 202. The urban domestic sewage to be treated is discharged from the water inlet pipe 201 into the fixed ring 202 and into the filter cartridge 203. After entering the filter cartridge 203, the sewage is subjected to solid-liquid separation, and the wastewater is directly discharged, while the solid impurities are retained in the filter cartridge 203. During operation, the motor 302 will drive the rotation of the filter cartridge 203, and the solid impurities inside will also be continuously turned over, thereby avoiding the filter The cylinder 203 is blocked to ensure the filtration efficiency. At the same time, when the filter cylinder 203 is rotating, its internal spiral blades 206 rotate synchronously, which can move the separated solid impurities to both sides and discharge them through the solid waste discharge pipe 207, realizing solid-liquid separation and solid-liquid separation processing at the same time; when the motor 302 is running, its power end is decelerated by the reducer 303 and drives the rotation of the transmission shaft 304 and the gear 305. The gear 305 is engaged with the gear ring 301 on the outer periphery of the filter cylinder 203. When the gear 305 rotates, it can drive the rotation of the gear ring 301 and then drive the rotation of the filter cylinder 203, so that the internal solid impurities can be discharged.

[0022] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A filtering device for treating urban domestic sewage, comprising a filter box (1), characterized in that: The filter box (1) further comprises a filter mechanism (2), wherein the filter mechanism (2) is provided inside the filter box (1), and the filter mechanism (2) comprises a water inlet pipe (201), a fixing ring (202), a filter cartridge (203), a support ring (204), spiral blades (206), and a solid waste discharge pipe (207). The fixing ring (202) is fixedly connected to the middle position inside the filter box (1), and the water inlet end of the filter box (1) is provided with a water inlet pipe (201) connected to the inside of the fixing ring (202). 01), filter cartridges (203) are provided on both sides of the interior of the filter box (1), and the ends of the filter cartridges (203) are respectively inserted into the two sides of the inner wall of the fixing ring (202), a supporting ring (204) is welded to the outer periphery of the filter cartridge (203), and a spiral blade (206) is welded to the inner wall of the filter cartridge (203), solid waste discharge pipes (207) are installed on both sides of the surface of the filter box, and the end of the filter cartridge (203) away from the fixing ring (202) is inserted into the interior of the solid waste discharge pipe (207).

2. The filtering device for treating urban domestic sewage according to claim 1, characterized in that: The invention also comprises a transmission mechanism (3), wherein a transmission mechanism (3) is provided between the filter box (1) and the filter cartridge (203), and the transmission mechanism (3) comprises a gear ring (301), a motor (302), a transmission shaft (304) and a gear (305). The outer periphery of the filter cartridge (203) is welded with a gear ring (301), the motor (302) is installed on both sides of the surface of the filter box (1), and the power output end of the motor (302) is installed with a transmission shaft (304) located inside the filter box (1), and the outer periphery of the transmission shaft (304) is installed with a gear (305) meshing with the gear ring (301).

3. The filtering device for treating urban domestic sewage according to claim 1, characterized in that: Support wheels (205) corresponding to the positions of the support ring (204) are installed at the bottom of the inner wall of the filter box (1), and the support wheels (205) are respectively placed on both sides of the bottom surface of the support ring (204).

4. The filtering device for treating urban domestic sewage according to claim 1, characterized in that: The bottom of the inner wall of the filter box (1) is provided with a collecting groove (208) located at the bottom of the filter cartridge (203), and the bottom of the filter box (1) is welded with a waste liquid discharge pipe (209) connected to the collecting groove (208).

5. The filtering device for treating urban domestic sewage according to claim 2, characterized in that: Reducers (303) are installed on both sides of the filter box (1), and the end of the transmission shaft (304) is connected to the power output end of the reducer (303), and the power output end of the motor (302) is connected to the power input end of the reducer (303).

Images