CN212214762U

CN212214762U - Candle type clarifying filter

Info

Publication number: CN212214762U
Application number: CN201922222811.7U
Authority: CN
Inventors: 张利淋
Original assignee: Danyang Hengya Optical Glasses Equipment Co ltd
Current assignee: Danyang Hengya Optical Glasses Equipment Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-12-25
Anticipated expiration: 2029-12-12

Abstract

The utility model discloses a candle-type clarifying filter, which comprises a filter main body, a plurality of filter elements are arranged in the filter main body, the lower end of the filter main body is provided with a slag discharge valve, a pressure relief valve is arranged above the filter main body, the lower part of the filter main body is provided with a liquid inlet pipe, the lower end of the filter elements is connected with a liquid outlet pipe, a clear liquid valve is arranged on the liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are externally connected with a series of functional valves, sewage treatment is carried out by utilizing the device, namely, all suspended matters in liquid can be filtered, the content of the liquid suspended matters after being filtered is below 100mg/L, the whole device has exquisite structure, lower use cost, and quick and convenient sewage treatment, and can be reused by reprocessing the; because the filter cake is in the filter, the equipment can automatically carry out deslagging clean treatment on the filter cake instead of traditional simple treatment, the service life of the equipment can be prolonged, and the subsequent sewage treatment capacity of the equipment cannot be influenced.

Description

Candle type clarifying filter

Technical Field

The utility model belongs to the sewage treatment field relates to a filter, specifically is a candle formula clarification filter and utilizes its method of handling sewage.

Background

In actual production, water is a common production necessary material, after production, the water becomes sewage, can not be directly discharged, but needs special treatment, and the problem that small enterprises are very painful is solved, the input cost is low, the water purification effect is poor, the input cost is high, the small enterprises have disadvantages in operation, and more pressure filters enter small enterprises. Traditional filter is through letting in sewage filter-press through the filter core purification for water obtains purifying, discharges promptly, and to little enterprise, the cost has obtained control like this.

However, after the equipment is used for a period of time, filter cakes are piled up, and the filter cakes are usually simply treated manually, but the filter residues are not well treated, the next sewage treatment capacity is influenced, so that the service life is not long, and the sewage treatment effect is influenced the worse the later treatment effect is, the later treatment effect is.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a candle formula clarification filter and utilize its method of handling sewage, concrete technical scheme is as follows:

a candle-type clarifying filter characterized by: the filter comprises a filter body, a plurality of filter elements are arranged in the filter body, a slag discharge valve is arranged at the lower end of the filter body, a pressure release valve is arranged above the filter body, a liquid inlet pipe is arranged at the lower part of the filter body, a liquid inlet valve, a liquid discharge valve and a blow-drying valve are arranged on the liquid inlet pipe, a liquid outlet pipe is connected with the lower end of the filter element, a liquid cleaning valve, a primary circulation valve, a back flushing valve and a blow-drying exhaust valve are arranged on the liquid outlet pipe, and valves arranged on the liquid inlet pipe and the.

As a further improvement, the method is characterized in that: the upper end of a filter element in the filter main body is provided with a circular brush disc, the brush disc adopts an up-down moving device to carry out up-down transmission, and the circular brush disc has the functions of brushing solid slag on the surface of the filter element during back flushing and deslagging and brushing powder on filter cloth during back cleaning.

As a further improvement, the method is characterized in that: the filter is characterized in that a bottom liquid discharge valve and a jet stirring valve are arranged below the filter body, the bottom liquid discharge valve and the jet stirring valve are connected through corresponding pipelines, the liquid discharge valve is used for discharging residual liquid at the bottom under blow-dry pressure, and the jet stirring valve is used for washing and stirring the bottom in filtering to prevent sedimentation.

As a further improvement, the method is characterized in that: the filter element is made of a framework formed by welding a plurality of porous stainless steel punching pipes, one end of the framework is used for discharging liquid, a single-wire single-layer micron-sized filter cloth is sleeved outside the framework, and two ends of the framework are fixed by using anchor ears.

The method for treating sewage by using the candle type clarifying filter comprises the following specific steps:

the method comprises the following steps: inputting the pretreated sewage into the filter body from the liquid inlet pipe through the liquid inlet valve, discharging the sewage through the filter element and the circulating valve to form a preliminary filter cake on the filter element, and converting the sewage into a clear liquid valve for purification treatment when clear liquid is discharged (time control is adopted for forming the filter cake);

step two: the purified water is discharged from the liquid outlet pipe and is conveyed to a clear liquid storage tank through a clear liquid pipeline for storage or is discharged through a clear liquid pipeline;

step three: after a period of time of treatment, the time, the pressure difference or the flow can be detected, and when enough filter cakes are generated on the filter element, the liquid inlet valve and the clear liquid valve are closed, the liquid discharge valve and the pressure release valve are opened, the liquid in the filter is discharged, and the liquid discharge is controlled by time;

step four: after liquid is discharged, the valve is closed, the blow-drying valve is opened, the exhaust valve is dried, the filter cake is dried, the drain valve at the bottom is opened at the drying time gap, residual liquid at the bottom is discharged through the drain valve at the bottom by using pressure generated in the filter during drying, water in the filter cake is taken out by using air flow dynamics, and the drying adopts time control;

step five: opening a bottom slag discharge butterfly valve, opening a back-blowing valve, performing pulse blasting slag blowing, discharging filter residues, then treating and discharging residual filter residues by a brush, and strongly scraping filter cakes which are not blasted and blown down;

step six: after the slag is discharged, backwashing is carried out, a backwashing valve is opened, pressurized clean water is input into the filter element, residual fine powder on the filter element is washed down from inside to outside, the brush is brushed up and down when washing, the cleanness and permeability of the filter cloth of the filter element are ensured, then the internal liquid is discharged, and the sewage treatment can be continued.

As a further improvement, the method is characterized in that: in the fourth step, when the filter cake is dried, the residual liquid at the bottom is completely discharged by the drain valve at the bottom, so that the water content of the discharged solid slag is ensured, and the water content of the solid slag can be reduced to below 40%.

As a further improvement, the method is characterized in that: and fifthly, when slag is discharged through back blowing, the brush device moves up and down to brush down residual powder on the filter cloth of the filter element, so that the slag discharging quality is improved.

As a further improvement, the method is characterized in that: and in the sixth step, after the filter cake is discharged, pressurized clean water is input into the filter element in the filter through the backwashing pipe, and the residual fine particles on the filter cloth are washed and then discharged.

As a further improvement, the method is characterized in that: and in the fourth step, the cake can be blown by adopting compressed air or a high-pressure fan according to the requirements of customers.

As a further improvement, the method is characterized in that: and 4, adopting a 360-degree brush to comprehensively consider each filter element and integrally drive a power mechanism in the brushes in the fifth step and the sixth step.

The utility model has the advantages that: the utility model provides a candle filter and a method for treating sewage by using the same, the whole equipment has exquisite structure, lower cost and quick and convenient sewage treatment, and can be reused by retreating the filter element; because the filter cake is arranged inside the filter press, the equipment can carry out cleaning treatment on the filter cake instead of the traditional simple treatment, the service life of the equipment can be prolonged, and the subsequent sewage treatment capacity of the equipment can not be influenced.

Drawings

Fig. 1 is a schematic structural diagram and a schematic piping diagram of the present invention.

Detailed Description

In order to further understand the present invention, the following detailed description will be made with reference to the accompanying drawings and examples, which are only used for explaining the present invention and do not limit the scope of protection.

A candle type clarifying filter, referring to figure 1, comprises a filter body 1, a plurality of filter elements 2 are arranged in the filter body 1, a slag discharge valve 3 is arranged at the lower end of the filter body 1, a pressure release valve 4 is arranged above the filter body 1 and is provided with corresponding pipelines, a liquid inlet pipe 5 is arranged at the lower part of the filter body 1, a liquid inlet valve 51, a liquid discharge valve 52 and a blow-drying valve 53 are arranged on the liquid inlet pipe 5, a liquid outlet pipe 6 is connected at the lower end of the filter elements 2, a clear liquid valve 61, a primary circulation valve 62, a blow-back valve 63, a backwash valve 64 and a blow-drying exhaust valve 65 are arranged on the liquid outlet pipe 6, the valves arranged on the liquid inlet pipe 5 and the liquid outlet pipe 6 are connected with corresponding pipelines, a circular brush disk 7 is arranged at the upper end of the filter element 2 in the filter body 1, the outer end of the circular brush disk 7 is connected with a motor 71, the, the bottom drain valve 31 and the jet flow stirring valve 32 are connected through corresponding pipelines, the bottom drain valve 31 is used for removing residual liquid at the bottom under blow-dry pressure, the jet flow stirring valve 32 is used for washing and stirring the bottom in filtering to prevent precipitation, the filter element 2 is made into a framework by welding a plurality of porous stainless steel punching pipes, one end of the framework is used for draining liquid, single-wire single-layer micron-sized filter cloth is sleeved outside the framework, and two ends of the framework are fixed through anchor ears.

The air exhaust valve 65 is dried on the liquid inlet pipe 5, the air source can adopt compressed air or a high-pressure fan, the backwashing valve 64 arranged on the liquid outlet pipe 6 adopts clean liquid to perform backwashing from inside to outside during cleaning, and the primary circulation valve 62 and the corresponding pipeline which are arranged on the liquid outlet pipe 6 are connected to the transfer sewage tank 10.

the method comprises the following steps: inputting pretreated sewage (from a sewage tank 9) into the filter body 1 from the liquid inlet pipe 5 through the liquid inlet valve 51, discharging the sewage through the filter element 2 through the primary circulation valve 62 to form a primary filter cake on the filter element, and converting the sewage into a clear liquid valve 61 for purification treatment when clear liquid is discharged; when the sewage cannot be completely purified by one filtration, the sewage can be discharged to the intermediate sewage tank 10 by the circulating valve 62 and then enters the sewage tank 8 to be treated by the filter.

Step two: the purified water is discharged from the liquid outlet pipe 6 and is conveyed to a clear liquid storage tank 8 through a clear liquid pipeline for storage or is discharged through a clear liquid pipeline; at this time, the sewage treatment is primarily completed. The following steps are the treatment of the filter element 2 when the sewage needs to be treated again.

Step three: when the sewage is treated for a period of time and can be detected by time, pressure difference or flow, and when enough filter cakes are generated on the filter element 2, the liquid inlet valve 51 and the clear liquid valve 61 are closed, the liquid discharge valve 52 and the pressure release valve 4 are opened, the liquid in the filter is discharged, and the liquid discharge is controlled by time;

step four: after liquid is discharged, the valve is closed, the blow-drying valve 53 is opened, the exhaust valve 65 is dried, filter cakes are dried, the bottom liquid discharge valve 31 is opened at intervals during drying, residual liquid at the bottom is discharged 31 through the bottom liquid discharge valve by using pressure generated in the filter during drying, water in the filter cakes is taken out by using air flow dynamics blown by compressed air or a high-pressure fan, and time control is adopted for drying;

step five: opening the bottom slag discharge butterfly valve 3, opening the back-blowing valve 63, performing pulse blasting slag blowing, discharging filter residues, then treating and discharging residual filter residues by the brush disc 7, and strongly scraping filter cakes which are not blasted and blown down;

step six: after the slag discharge is finished, backwashing is carried out, a backwashing valve 64 is opened, pressurized clean water is input into the filter element 2, residual fine powder on the filter element is washed down from inside to outside, the brush disc 7 is scrubbed up and down during washing, the cleanness and permeability of the filter cloth of the filter element 2 are ensured, then the internal liquid is discharged, and the sewage treatment can be continued.

And in the fourth step, when the filter cake is dried, all residual liquid at the bottom is discharged by the bottom liquid discharge valve 31, so that the water content of discharged solid slag is ensured, and the water content of the solid slag can be reduced to below 40%.

In addition, in the fifth step, when slag is discharged in a back blowing mode, the brush disc 7 device moves up and down to brush residual powder on the filter cloth of the filter element 2 down strongly, and the slag discharging quality is improved.

And thirdly, after the filter cake is discharged in the sixth step, pressurized clean water is input into the filter element 2 in the filter through a backwashing pipe, and the residual fine particles on the filter cloth are washed and then discharged.

And finally, in the brush disc 7 in the fifth step and the sixth step, 360-degree brushes are adopted to comprehensively consider each filter element and integrally drive a power mechanism.

The equipment has the advantages of exquisite structure, low cost, and quick and convenient sewage treatment, and can be reused by retreating the filter element; because the filter cake is arranged inside the filter press, the equipment can carry out cleaning treatment on the filter cake instead of the traditional simple treatment, the service life of the equipment can be prolonged, and the subsequent sewage treatment capacity of the equipment can not be influenced. The system can be used for a long time for all small and micro enterprises, relieves the environmental protection pressure of the enterprises, and lays a good foundation for the development of the enterprises. And aiming at some domestic sewage, the equipment can also treat the domestic sewage, so that water resources are fully saved.

Claims

1. A candle-type clarifying filter characterized by: the filter comprises a filter body, a plurality of filter elements are arranged in the filter body, a slag discharge valve is arranged at the lower end of the filter body, a pressure release valve is arranged above the filter body, a liquid inlet pipe is arranged at the lower part of the filter body, a liquid inlet valve, a liquid discharge valve and a blow-drying valve are arranged on the liquid inlet pipe, a liquid outlet pipe is connected with the lower end of the filter element, a liquid cleaning valve, a primary circulation valve, a back flushing valve and a blow-drying exhaust valve are arranged on the liquid outlet pipe, and valves arranged on the liquid inlet pipe and the.

2. A candle clarification filter according to claim 1, characterized in that: the upper end of the filter element in the filter main body is provided with a circular brush disc, and the brush disc is driven up and down by an up-down moving device.

3. A candle clarification filter according to claim 1, characterized in that: a bottom liquid discharge valve and a jet stirring valve are arranged below the filter main body and are connected through corresponding pipelines.

4. A candle clarification filter according to claim 1, characterized in that: the filter element is made of a framework formed by welding a plurality of porous stainless steel punching pipes, one end of the framework is used for discharging liquid, a single-wire single-layer micron-sized filter cloth is sleeved outside the framework, and two ends of the framework are fixed by using anchor ears.