CN211025391U

CN211025391U - Filter cloth rotary table filter back-flushing device

Info

Publication number: CN211025391U
Application number: CN201921372071.9U
Authority: CN
Inventors: 左超; 王志玺; 马双华
Original assignee: Anyang Jinhua Intermediate Water Treatment Equipment Co ltd
Current assignee: Anyang Jinhua Intermediate Water Treatment Equipment Co ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-07-17
Anticipated expiration: 2029-08-22

Abstract

The utility model belongs to the technical field of the structure of a rotary disc filter, in particular to a filter cloth rotary disc filter backwashing device, which mainly aims to provide a novel filter cloth rotary disc filter backwashing device and effectively improves the backwashing effect of the rotary disc filter, and provides the filter cloth rotary disc filter backwashing device, which comprises a filter tank, a filter body arranged in the filter tank, a plurality of filter discs arranged on the filter body in an evenly distributed way, backwashing water absorbing devices arranged on both sides of each filter disc, the backwashing water absorbing devices positioned and connected with the inner wall of the filter tank through a hoisting connecting frame, and the backwashing water absorbing devices contacted with the filter cloth on the filter discs; the back washing pump is arranged outside the filtering tank, and the back washing device effectively reduces the accumulation phenomenon of sludge on the rotary disc filter cloth, effectively improves the installation efficiency of equipment and improves the economic benefit of enterprises.

Description

Filter cloth rotary table filter back-flushing device

Technical Field

The utility model belongs to the technical field of the structure of a rotary disc filter; in particular to a backwashing device of a filter cloth rotary disc filter.

Background

The filter cloth rotary disc filter is characterized in that a plurality of filter discs are vertically arranged on the same central rotating shaft, filter cloth is adopted as a filter medium, the filter cloth rotary disc filter is mainly used in a sewage treatment plant, sewage is purified and recycled, so that water resources can be effectively and continuously utilized, the operation state of the rotary disc filter is divided into two relatively independent and simultaneous processes of raw water filtration and back flush sludge discharge, the rotary disc filter has the advantages of continuous 24-hour continuous operation, stop back flush is not needed, and back flush can be continuously performed simultaneously, the operation cost is low, the occupied area is small, the whole operation process is automatically controlled, filtration, back flush and the like are all controlled by programs, multiple protections are provided, in the back flush process, sludge in sewage is collected on the inner side of the filter cloth, a sludge layer is gradually formed, the filtration resistance of the filter cloth is increased along with the accumulation of the sludge on the filter cloth, the water level of a filter pool is gradually increased, the liquid level change in the back flush liquid level gauge is monitored, when the liquid level in the tank body reaches the cleaning liquid level, a system is controlled by a P L C, the starting process is started, dirt accumulated on the inner surface of the filter cloth is removed, then, the filter cloth adsorption labor intensity of the filter cloth is greatly influenced by the filter cloth, and the problem that a large amount of the filter cloth adsorption labor intensity of the filter cloth adsorption of the filter cloth is often caused by the high filter cloth adsorption of the defect of the existing rotary disc filter cloth adsorption work of the existing rotary disc filter cloth.

Disclosure of Invention

The utility model discloses an inventive purpose:

the filter cloth rotary table filter backwashing device mainly aims to provide a novel filter cloth rotary table filter backwashing device, not only effectively improves backwashing adsorption strength of the rotary table filter, effectively reduces accumulation of sludge on rotary table filter cloth, effectively improves backwashing effect of the rotary table filter, but also greatly facilitates matching deviation adjustment process of the backwashing device and the filter disc filter cloth, greatly reduces labor intensity of workers, effectively improves installation efficiency of equipment, and effectively improves economic benefits of enterprises.

The technical scheme of the utility model is that:

the filter cloth rotary table filter backwashing device comprises a filter tank, a filter body is arranged in the filter tank, a plurality of filter discs are uniformly distributed and arranged on the filter body, backwashing water absorbing devices are arranged on two sides of each filter disc, the backwashing water absorbing devices are connected with the inner wall of the filter tank in a positioning mode through hoisting connecting frames, and the backwashing water absorbing devices are in contact with filter cloth on the filter discs; a back washing pump is arranged outside the filter tank and is connected with a back washing water absorption device through a pipe fitting.

The back flush water absorption device comprises a water absorption cavity, and a plurality of pressure boosting water absorption ports are uniformly distributed in the water absorption cavity.

The water absorption port of the booster pump comprises a booster section and an adsorption section which are sequentially arranged from front to back, and a buffer section is also arranged between the booster section and the adsorption section.

The suction inlet diameter of pressure boost section reduces along the absorption direction gradually, and the suction inlet diameter of absorption section increases along the absorption direction gradually, and the suction inlet diameter of buffering section keeps unchangeable.

The hoisting connecting frame comprises a supporting transverse frame connected with the backwashing water absorption device, and an auxiliary adjusting hoisting device is further arranged on the upper portion of the supporting transverse frame.

The auxiliary adjusting and hoisting device comprises a first hoisting bolt and a second hoisting bolt, wherein the first hoisting bolt is fixedly connected with a mounting and positioning block arranged on the supporting cross frame; the second lifting bolt is fixedly connected with a channel steel connecting plate which is integrally arranged with the supporting cross frame, a stainless steel hoisting chain is further connected and arranged between the first lifting bolt and the second lifting bolt, and an auxiliary adjusting connecting piece is further arranged on the first lifting bolt or/and the second lifting bolt.

The auxiliary adjusting connecting piece is a turn buckle connected with the first lifting bolt or/and the second lifting bolt, and the other end of the turn buckle is connected with the stainless steel hoisting chain.

The utility model has the advantages that:

this novel structural design's back flush unit of filter cloth rotary table filter, the effectual back flush adsorption strength who improves rotary table filter not only, the effectual accumulational phenomenon of mud on the rotary table filter cloth that has reduced, the effectual back flush effect who improves rotary table filter, the very big matching deviation accommodation process of back flush unit and filter disc filter cloth that has made things convenient for moreover, very big reduction workman's intensity of labour, the effectual installation effectiveness who improves equipment, the effectual economic benefits who improves the enterprise.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of a pressurized water suction port of the present invention;

fig. 3 is the utility model discloses an auxiliary adjusting hoist device's schematic structure diagram.

In the figure, 1 is a filtering tank; 2 is a filter body; 3 is a filter disc; 4 is a back-washing water absorption device; 5 is a hoisting connecting frame; 6 is a back washing pump; 7 is a piping pipe fitting; 8 is a water suction cavity; 9 is a pressurized water suction port; 10 is a pressurizing section; 11 is an adsorption section; 12 is a buffer section; 13 is a supporting transverse frame; 14 is an auxiliary adjusting and hoisting device; 15 is a first eye bolt; 16 is a second eye bolt; 17 is an installation positioning block; 18 is a channel steel connecting plate; 19 is a stainless steel hoisting chain; and 20 is an auxiliary adjusting connector.

Detailed Description

The following detailed description of embodiments of the present invention is made with reference to the accompanying drawings.

As shown in fig. 1 to 3, a filter cloth rotary table filter backwashing device is provided, which comprises a filter tank 1, a filter body 2 arranged in the filter tank, a plurality of filter discs 3 uniformly distributed and arranged on the filter body, backwashing water absorbing devices 4 arranged on both sides of each filter disc, a hoisting connecting frame 5 for connecting the backwashing water absorbing devices with the inner wall of the filter tank in a positioning manner, and filter cloth contacting with the backwashing water absorbing devices; a back washing pump 6 is arranged outside the filter tank and is connected with a back washing water absorption device through a pipe fitting 7.

The back flush water absorption device comprises a water absorption cavity 8, and a plurality of pressure boosting water absorption ports 9 are uniformly distributed in the water absorption cavity.

The water absorption port of the booster pump comprises a booster section 10 and an adsorption section 11 which are sequentially arranged from front to back, and a buffer section 12 is also arranged between the booster section and the adsorption section.

The hoisting connection frame comprises a supporting transverse frame 13 connected with the backwashing water absorption device, and an auxiliary adjusting hoisting device 14 is further arranged at the upper part of the supporting transverse frame.

The auxiliary adjusting and hoisting device comprises a first hoisting bolt 15 and a second hoisting bolt 16, wherein the first hoisting bolt is fixedly connected with a mounting positioning block 17 arranged on the supporting cross frame; the second lifting bolt is fixedly connected with a channel steel connecting plate 18 which is integrally arranged with the support cross frame, a stainless steel hoisting chain 19 is also connected and arranged between the first lifting bolt and the second lifting bolt, and an auxiliary adjusting connecting piece 20 is also arranged on the first lifting bolt or/and the second lifting bolt.

The filter cloth rotary table filter backwashing device with the novel structural design has the advantages of convenient structure and flexible installation; the filter cloth rotary table filter adopts filter cloth as a filter medium, and the backwashing device carries out effective backwashing process on the filter discs by arranging backwashing water absorbing devices on both sides of the filter discs; the backwashing water absorption device is connected with a backwashing pump through a pipe fitting, and during operation, sewage enters from an adsorption port, is filtered by a coarse filter screen to remove larger-particle impurities and then reaches a fine filter screen; in the filtering process, the fine filter screen gradually accumulates dirt and impurities in water to form a filtering impurity layer, and a pressure difference is formed between the inner side and the outer side of the fine filter screen due to the fact that the impurity layer is accumulated on the inner side of the fine filter screen; when the pressure difference reaches a preset value, the automatic cleaning process is started, and the electric motor drives the sewage suction pipe to make spiral motion along the axial direction. The axial movement and the rotation of the dirt suction device are combined to completely clean the inner surface of the whole filter screen; in the installation process of the backwashing water absorption device, certain matching deviation is generated between the backwashing water absorption device and the filter disc due to the assembly process, and the auxiliary adjusting hoisting device is arranged on the supporting cross frame and is fixedly connected with an installation positioning block arranged on the supporting cross frame through a first lifting bolt; the second lifting bolt is fixedly connected with a channel steel connecting plate which is integrally arranged with the supporting cross frame, and a stainless steel hoisting chain is also connected between the first lifting bolt and the second lifting bolt, so that the connection safety and reliability performance and the bearing strength of the backwashing water absorption device are effectively improved, and the installation process of equipment is greatly facilitated; then, a turn buckle connected with the first eye bolt or/and the second eye bolt is arranged; the structure of the adjusting turn buckle is convenient to purchase and install, the equipment cost is low, the universality is strong, the turn buckle is adjusted in a telescopic mode through the lead screw, the tightness degree of the lifting eye bolt and the stainless steel chain is effectively adjusted, and the adjustment and correction of the assembly and installation deviation between the backwashing water absorption device and the filtering disc body are effectively met; meanwhile, in order to improve the backwashing adsorption strength of the rotary disc filter and effectively reduce the accumulation phenomenon of sludge on rotary disc filter cloth, a plurality of pressure boosting water suction ports are uniformly distributed in the water suction cavity and comprise a pressure boosting section and an adsorption section, when a backwashing pump is used for negative pressure suction backwashing, the adsorption kinetic energy per unit area is effectively improved due to the change of the section of the pressure boosting section, and meanwhile, stronger adsorption pressure difference is generated in the adsorption section, so that the adsorption kinetic energy per unit area is further improved while the adsorption area is improved; this novel structural design's back flush unit of filter cloth rotary table filter, the effectual back flush adsorption strength who improves rotary table filter not only, the effectual accumulational phenomenon of mud on the rotary table filter cloth that has reduced, the effectual back flush effect who improves rotary table filter, the very big matching deviation accommodation process of back flush unit and filter disc filter cloth that has made things convenient for moreover, very big reduction workman's intensity of labour, the effectual installation effectiveness who improves equipment, the effectual economic benefits who improves the enterprise.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above description is only illustrative of the present invention, and is not intended to limit the scope of the present invention, and any person skilled in the art can make equivalent changes and modifications without departing from the spirit and principles of the present invention, which should fall within the protection scope of the present invention.

Claims

1. The utility model provides a filter cloth rotary table filter back flush device, includes the filtering ponds, the filter body that sets up in the filtering ponds, the equipartition is arranged and is provided with a plurality of filter discs, its characterized in that on the filter body: the filter plate is characterized in that back flush water absorption devices are arranged on two sides of each filter plate and are connected with the inner wall of the filter tank in a positioning mode through hoisting connection frames, each hoisting connection frame comprises a supporting transverse frame connected with the back flush water absorption device, an auxiliary adjusting hoisting device is further arranged on the upper portion of each supporting transverse frame and comprises a first hoisting bolt and a second hoisting bolt, and the first hoisting bolt is fixedly connected with a mounting positioning block arranged on the supporting transverse frame; the second lifting bolt is fixedly connected with a channel steel connecting plate which is integrally arranged with the supporting cross frame, a stainless steel hoisting chain is also connected and arranged between the first lifting bolt and the second lifting bolt, an auxiliary adjusting connecting piece is also arranged on the first lifting bolt or/and the second lifting bolt, and the backwashing water absorption device is contacted with the filter cloth on the filter disc; a back washing pump is arranged outside the filter tank and is connected with a back washing water absorption device through a pipe fitting.

2. The filter cloth rotary table filter backwash device as defined in claim 1, wherein: the back flush water absorption device comprises a water absorption cavity, and a plurality of pressure boosting water absorption ports are uniformly distributed in the water absorption cavity.

3. The filter cloth rotary table filter backwash device as defined in claim 2, wherein: the water absorption port of the booster pump comprises a booster section and an adsorption section which are sequentially arranged from front to back, and a buffer section is also arranged between the booster section and the adsorption section.

4. The filter cloth rotary table filter backwash device as defined in claim 3, wherein: the suction inlet diameter of pressure boost section reduces along the absorption direction gradually, and the suction inlet diameter of absorption section increases along the absorption direction gradually, and the suction inlet diameter of buffering section keeps unchangeable.

5. The filter cloth rotary table filter backwash device as defined in claim 1, wherein: the auxiliary adjusting connecting piece is a turn buckle connected with the first lifting bolt or/and the second lifting bolt, and the other end of the turn buckle is connected with the stainless steel hoisting chain.