CN217939418U

CN217939418U - Rotary drum filter

Info

Publication number: CN217939418U
Application number: CN202221521139.7U
Authority: CN
Inventors: 贺瑞霞; 齐飞; 杨军; 刘宇松; 丁红根; 王四方; 唐德权; 陈实; 李飞燕
Original assignee: Guizhou High Tech Investment Ecological Industry Co ltd
Current assignee: Guizhou High Tech Investment Ecological Industry Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-12-02
Anticipated expiration: 2032-06-17

Abstract

The utility model discloses a rotary drum filter belongs to sewage treatment technical field. The rotary drum filter comprises a box body, a driving assembly, a speed regulating assembly and a filtering assembly, wherein the driving assembly is arranged on the box body, the speed regulating assembly is electrically connected with the driving assembly, the filtering assembly is located in the box body, and one end of the filtering assembly is connected with the driving assembly. The rotating speed of the direct current motor can be adjusted through the direct current voltage regulator so as to further adjust the rotating speeds of the rotary drum grating and the rotary drum filtering membrane, so that the rotary drum filtering membrane is in a high-efficiency running state, and the sewage treatment efficiency of the rotary drum filter is improved.

Description

Rotary drum filter

Technical Field

The utility model relates to a rotary drum filter belongs to sewage treatment technical field.

Background

The filter is one of the important devices in the sewage treatment industry. At present, a filter adopted in the sewage treatment industry in China basically comprises a filtering system and a backwashing system, pollutants can be attached to a filtering facility after the filtering system is filtered for a long time, so that the water permeability is reduced, the backwashing system is started, a large amount of backwashing water is generated in the backwashing process, the backwashing water needs to enter an adjusting tank for retreatment, the occupied area of the filter is large, the filtering capacity is not high, and the filtering material needs to be subjected to irregular backwashing. Therefore, the rotary drum filter appears on the market, and has the advantages of compact structure, small occupied space, strong filtering capacity, large treatment capacity, no generation of backwashing wastewater and the like, so the rotary drum filter is popular in the sewage treatment industry.

For example, chinese patent publication No. CN103111115A discloses an automatic solid-liquid separation filter and a filtering method thereof, the filter includes a filter housing and a housing, the filter housing includes a collecting tank, a cylindrical filter screen, an impurity collector, an impurity discharge port, a feed pipe port, and a filtrate discharge port, wherein: the cylindrical filter screen is arranged above the material collecting groove to form a filter bin and is driven by a motor to rotate; the end surface of the cylindrical filter screen is provided with a bin hole, and a feeding pipe orifice extends into and is arranged in the bin hole through a feeding pipeline with the length shorter than that of the cylindrical filter screen and a gap; the impurity collector with the impurity discharge port is arranged above the feeding pipeline; one side of the material collecting groove is provided with the filtrate discharge hole; the shell is covered above the material collecting groove and covers the filter bin and the material collecting groove. The automatic high-efficiency and high-precision separation and filtration of the slag liquid under normal pressure are realized by adopting the classified filtration, and meanwhile, the filtered filter residue can be recycled and reused, and the phenomenon of net blockage in the filtration is avoided.

However, when the automatic solid-liquid separation filter is applied to sewage treatment, the rotational speed of the cylindrical filter screen cannot be adjusted according to the sewage concentration, the sludge content, or the like during the sewage treatment, which results in a decrease in the sewage treatment efficiency of the filter.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a rotary drum filter.

The utility model discloses a following technical scheme can realize:

a rotary drum filter comprises a box body, a driving assembly, a speed regulating assembly and a filtering assembly, wherein the driving assembly is arranged on the box body, the speed regulating assembly is electrically connected with the driving assembly, the filtering assembly is located in the box body, and one end of the filtering assembly is connected with the driving assembly.

The driving assembly comprises a motor and a steering gear, the motor is arranged on the steering gear, an output shaft of the motor is inserted into an input hole of the steering gear, the steering gear is arranged on the box body, and the output shaft of the steering gear is connected with the filtering assembly through a coupler.

The motor is a direct current motor.

The speed regulating component is a direct current voltage regulator.

The filter assembly comprises a rotary drum grating and a rotary drum filtering membrane, a rotating shaft is arranged at one end of the rotary drum grating, a feeding hole is formed in the other end of the rotary drum grating, the diameter of the feeding hole is smaller than the inner diameter of the rotary drum grating, the rotary drum filtering membrane is sleeved on the rotary drum grating, and an opening is formed in one end, far away from the drive assembly, of the box body.

The rotary drum filtering membrane is formed by weaving a plurality of stainless steel wires in a criss-cross mode.

The mesh number of the drum filtering membrane is 600-1000 meshes.

Two carrier rollers are movably arranged in the box body and are used for supporting one end, far away from the driving assembly, of the filtering assembly.

A back washing component is arranged on the upper side of the filtering component in the box body.

The back washing component comprises a spray pipe and a plurality of spray heads arranged on the spray pipe.

The beneficial effects of the utility model reside in that:

1. the rotating speed of the direct current motor can be adjusted through the direct current voltage regulator so as to further adjust the rotating speeds of the rotary drum grating and the rotary drum filtering membrane, so that the rotary drum filtering membrane is in a high-efficiency running state, and the sewage treatment efficiency of the rotary drum filter is improved.

2. The back washing assembly is arranged to wash filter residues attached to the inner wall of the rotary drum filtering membrane, so that the rotary drum filtering membrane is prevented from being blocked, the sewage treatment capacity of the rotary drum filter is improved, and the sewage treatment capacity of the filtering assembly cannot be increased in the back washing process.

Drawings

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

fig. 2 is a schematic top view of the present invention;

fig. 3 is a schematic view of the structure of the present invention.

In the figure: 1-drum grating, 2-carrier roller, 3-nozzle, 4-drum filtering membrane, 5-spray pipe, 6-driving component and 7-box body.

Detailed Description

The technical solutions of the present invention are further described below, but the scope of protection claimed is not limited to the described ones.

As shown in fig. 1 to 3, a rotary drum filter, including box 7, drive assembly 6, speed governing subassembly and filtering component, drive assembly 6 installs on box 7, speed governing subassembly and 6 electric connection of drive assembly, filtering component is located box 7, and filtering component's one end is connected with drive assembly 6. In the sewage treatment process, according to the concentration or the mud content of sewage and the like, the rotating speed of the driving component 6 can be adjusted through a speed adjusting component (not shown in the figure), so that the rotating speed of the filtering component is adjusted, the filtering component is in a high-efficiency running state, and the sewage treatment efficiency of the drum filter is improved.

The driving assembly 6 comprises a motor and a steering gear, the motor is installed on the steering gear, an output shaft of the motor is inserted into an input hole of the steering gear, the steering gear is installed on the box body 7, and the output shaft of the steering gear is connected with the filtering assembly through a coupler. When the steering gear is used, an output shaft of the steering gear is connected with a rotating shaft at one end of the drum grating 1 through a coupler. The steering gear is a spiral bevel gear commutator, which is the prior art and is not described in detail herein.

The motor is a direct current motor.

The speed regulating component is a direct current voltage regulator. The armature voltage of the direct current motor is changed through the direct current voltage regulator, the rotating speed of the direct current motor is increased when the armature voltage is increased, and the rotating speed of the direct current motor is reduced when the armature voltage is reduced, so that the purpose of regulating the rotating speed of the direct current motor is achieved.

The filter assembly comprises a rotary drum grating 1 and a rotary drum filtering membrane 4, a rotating shaft is installed at one end of the rotary drum grating 1, a feeding hole is machined at the other end of the rotary drum grating, the diameter of the feeding hole is smaller than the inner diameter of the rotary drum grating 1, the rotary drum filtering membrane 4 is sleeved on the rotary drum grating 1, and an opening is formed in one end, far away from the drive assembly 6, of the box body 7.

The rotary drum filtering membrane 4 is formed by weaving a plurality of stainless steel wires in a criss-cross mode. The drum filtering membrane 4 has the advantages of corrosion resistance, difficult rustiness, long service life and the like.

The mesh number of the rotary drum filtering membrane 4 is 600-1000 meshes. When in use, the mesh number of the drum filter membrane 4 is 800 meshes.

Two carrier rollers 2 are movably mounted in the box body 7, and the two carrier rollers 2 are used for supporting one end, far away from the driving assembly 6, of the filtering assembly. The stability of the filter assembly is improved by the carrier roller 2.

A back washing component is arranged on the upper side of the filtering component in the box body 7.

The back flushing component comprises a spray pipe 5 and a plurality of spray heads 3 arranged on the spray pipe 5. When the device is used, clear water is introduced into the spraying pipe 5 and is sprayed out through the spray head 3 so as to wash filter residues attached to the inner wall of the drum filtering membrane 4 and avoid the blocking of the drum filtering membrane 4.

Concretely, rotary drum filter still connects the mud groove including connecing, connects the mud groove to be located filtering component, connects the upside opening in mud groove, and the cross sectional shape that connects the mud groove is isosceles trapezoid, connects the one end in mud groove to install the mud pipe, and the mud pipe passes through the support frame to be connected with box 7, and the one end of mud pipe extends to in the sedimentation tank. One end of the sewage discharge pipe extends into the filter assembly.

Rotary drum filter, its theory of operation or use as follows:

carry in rotary drum grid 1 sewage through sewage discharge pipe, the motor passes through steering gear, shaft coupling and gives rotary drum grid 1 with the moment of torsion transmission, orders about rotary drum grid 1 and drives rotary drum filtration membrane 4 and rotate, and the water and the tiny particle matter that pass rotary drum filtration membrane 4 drop to box 7 lower part, and large granule matter then holds back in rotary drum filtration membrane 4 inboard to realize sewage and filter.

In the sewage treatment process, the rotating speed of the direct current motor can be adjusted through the direct current voltage regulator according to the concentration or the mud content of the sewage, so that the rotating speeds of the rotary drum grating 1 and the rotary drum filtering membrane 4 are further adjusted, the rotary drum filtering membrane 4 is in a high-efficiency running state, and the sewage treatment efficiency of the rotary drum filter is improved.

After a period, the filter residue that is located drum filtration membrane 4 inboard can block up the mesh, causes drum filtration membrane 4's filtration efficiency to descend, leads to clear water in to shower 5 through circulating pump and connecting pipe this moment, and the clear water is through 3 blowout of shower nozzle to wash the filter residue of adhering to on drum filtration membrane 4 inner wall, the filter residue that the part dropped can be held back by connecing the mud groove, at last in arranging mud pipe guide row sedimentation tank.

The utility model provides a rotary drum filter, its beneficial effect as follows:

1. the rotating speed of the direct current motor can be adjusted through the direct current voltage regulator so as to further adjust the rotating speeds of the rotary drum grating 1 and the rotary drum filtering membrane 4, so that the rotary drum filtering membrane 4 is in a high-efficiency running state, and the sewage treatment efficiency of the rotary drum filter is improved.

2. The back washing component is arranged to wash filter residues attached to the inner wall of the rotary drum filtering membrane 4, so that the rotary drum filtering membrane 4 is prevented from being blocked, the sewage treatment capacity of the rotary drum filter is improved, and the sewage treatment capacity of the filtering component cannot be increased in the back washing process.

Claims

1. A rotary drum filter characterized by: including box (7), drive assembly (6), speed governing subassembly and filtering component, establish on box (7) drive assembly (6), speed governing subassembly and drive assembly (6) electric connection, filtering component is located box (7), and filtering component's one end is connected with drive assembly (6).

2. A rotary drum filter as claimed in claim 1, wherein: the driving assembly (6) comprises a motor and a steering gear, the motor is arranged on the steering gear, an output shaft of the motor is inserted into an input hole of the steering gear, the steering gear is arranged on the box body (7), and the output shaft of the steering gear is connected with the filtering assembly through a coupler.

3. A rotary drum filter as claimed in claim 2, wherein: the motor is a direct current motor.

4. A rotary drum filter as claimed in claim 1, wherein: the speed regulating component is a direct current voltage regulator.

5. A rotary drum filter as claimed in claim 1, wherein: the filter assembly comprises a rotary drum grating (1) and a rotary drum filter membrane (4), one end of the rotary drum grating (1) is provided with a rotating shaft, the other end of the rotary drum grating is provided with a feed inlet, the diameter of the feed inlet is smaller than the inner diameter of the rotary drum grating (1), and the rotary drum filter membrane (4) is sleeved on the rotary drum grating (1); one end of the box body (7) far away from the driving component (6) is opened.

6. A drum filter as claimed in claim 5, wherein: the rotary drum filtering membrane (4) is formed by weaving a plurality of stainless steel wires in a criss-cross mode.

7. A drum filter as claimed in claim 6, wherein: the mesh number of the rotary drum filtering membrane (4) is 600-1000 meshes.

8. A rotary drum filter as claimed in claim 1, wherein: two carrier rollers (2) are movably arranged in the box body (7), and the two carrier rollers (2) are used for supporting one end, far away from the driving assembly (6), of the filtering assembly.

9. A rotary drum filter as claimed in claim 1, wherein: a back washing component is arranged on the upper side of the filtering component in the box body (7).

10. A drum filter as claimed in claim 9, wherein: the back washing component comprises a spraying pipe (5) and a plurality of spray heads (3) arranged on the spraying pipe (5).