CN203648241U - backwash filter - Google Patents

Abstract

The utility model discloses a back flush filter, which comprises a frame, the filter vat, filter and use the water pump, back flush and use the water pump, bag filter formula filter vat and aqua storage tank, utilize the filter vat to filter surplus liquid and wash the filter media through the water pump punching press for the back flush, need not to wash with the clear water in addition, water saving, and need not open the sealed lid of filter at the abluent in-process of filter, only need operate on the machine, can let the filter core of jam wash, many links have been reduced in the cleaning operation, personnel's problem in the operation has also been reduced, and the time is saved, the manpower. The impurities after washing are discharged into the filtering device and are filtered by the filtering device, the filtered liquid is input into the water storage tank under the pressure action of the backwashing water pump, the liquid in the water storage tank can be input into the filtering barrel through the filtering water pump for filtering and discharging, and no wastewater is generated in the cleaning process.

Description

backwash filter

technical field

The utility model relates to a filter device, in particular to a backwash filter which saves time and effort in cleaning operation and does not generate waste water.

Background technique

The existing filter includes a frame, the bottom of the frame is equipped with a pump, the two ends of the pump are respectively provided with an outlet and an inlet, the upper part of the frame is provided with a main body seat, and a filter cartridge is installed above the main body seat. One side of the tank is provided with a dosing tank and an inspection circulation pipe, one end of the inspection circulation pipe is connected to the filter cartridge, and the dosing tank is connected to the inlet of the pump through a pipeline. When working, the filtered liquid to be filtered is pumped into the filter barrel for filtration, and activated carbon is added into the dosing tank, and the activated carbon is sent to the filter barrel together with the filtered liquid, and the activated carbon will filter the organic matter in the liquid Absorb and filter. After the filter barrel is used for a period of time, impurities will block the filter material in the filter barrel and need to be cleaned. During the cleaning process, the sealing cover of the filter needs to be disassembled, and then the filter element is taken out for cleaning. The process is time-consuming and expensive. Artificial, and there is a lot of waste water, which causes a lot of costs in the process of use.

Utility model content

The main purpose of the utility model is to provide a backwashing filter, which aims to simplify the cleaning operation of the filter material, realize the time-saving and labor-saving cleaning operation of the filter material, and produce no waste water during the cleaning process. the

The utility model proposes a backwashing filter, comprising a frame, a filter barrel arranged on the frame, and a filter water pump arranged below the frame, the outlet of the filter water pump is connected to the filter barrel It also includes a backwash water pump arranged under the frame, a filter device for filtering impurities and a water storage tank arranged under the filter barrel, and the filter barrel includes a liquid outlet and a backwash water pump. Outlet, the liquid outlet of the filter barrel communicates with the water storage container used to hold the filtered liquid, the backwash outlet of the filter barrel communicates with the inlet of the filter device, and one side of the backwash water pump is provided There is an air inlet connected to the outside air, and an air inlet connected to the air outlet of the air compressor is provided on the other side, the outlet of the backwash water pump is connected to the liquid outlet of the filter barrel, and the filter device The outlet of the water storage tank is communicated with the inlet of the water storage tank, and the outlet of the water storage tank is communicated with the inlet of the filtering water pump; a water outlet valve is provided on the communication pipe between the liquid outlet of the filter bucket and the water storage container, The backwashing outlet of the filter barrel is provided with a blowdown valve on the communication pipe between the inlet of the filter device, and the suction port of the backwashing water pump is provided with an air suction valve. The air inlet is provided with an air inlet valve, and a flushing valve is arranged on the communication pipe between the outlet of the backwashing water pump and the liquid outlet of the filter barrel, and a flushing valve is arranged at the outlet of the filter device and the inlet of the water storage tank. A water inlet valve is provided on the communication pipeline of the water storage tank, and a water delivery valve is provided on the communication pipeline between the outlet of the water storage tank and the inlet of the filtering water pump.

Preferably, the filter device is a bag filter bucket.

Preferably, it also includes a dosing tank and an internal circulation pipeline, the dosing tank communicates with the inlet of the filtering water pump through a communication pipeline, and a communication pipeline between the dosing tank and the inlet of the filtering water pump is provided There is a dosing valve; one end of the internal circulation pipeline communicates with the liquid outlet of the filter bucket, the other end of the internal circulation pipeline communicates with the inlet of the filtering water pump, and a circulating valve.

Preferably, the liquid outlet of the filtering bucket communicates with the water storage container, the backwash water pump, and the internal circulation pipeline through a four-way pipe. the

The beneficial effects of the backwash filter of the present utility model are:

Improve the cleaning process of the original filter, fill in the air through the air compressor, and use the remaining liquid filtered in the filter bucket to flush the filter material through the backwash water pump, without additional cleaning with clean water, saving water. Moreover, in the process of cleaning the filter, it is not necessary to open the sealing cover of the filter, and the clogged filter element can be cleaned only by operating on the machine, which reduces many links in the cleaning operation and reduces the need for personnel to operate. problems, saving time and manpower.

Impurities after flushing are discharged into the filter device, filtered by the filter device, and the filtered liquid is input into the water storage tank under the pressure of the backwash water pump, and the liquid in the water storage tank can be input into the filter bucket through the filter water pump for further cleaning. It is filtered and discharged, and no waste water is generated during the cleaning process. The utility model solves the problems of time-consuming, labor-consuming, water-consuming and other problems in the cleaning process of the original filter. the

Description of drawings

Fig. 1 is the structural block diagram of the backwash filter in an embodiment of the utility model backwash filter;

Fig. 2 is the flow chart of the filter program of the utility model backwash filter;

Fig. 3 is the flow chart of the internal circulation program of the utility model backwash filter;

Fig. 4 is the flow chart of the backwash program of the utility model backwash filter;

Fig. 5 is the flow chart of the flushing liquid circulating filtration program of the utility model backwash filter;

Fig. 6 is a first perspective view of the backwash filter in an embodiment of the utility model backwash filter.

The following are the names of the parts corresponding to the labels: 10-filter barrel, 11-inlet of filter barrel, 12-liquid outlet, 121-water outlet valve, 122-flush valve, 123-circulation valve, 13-backwash outlet, 14 -Exhaust valve, 131-Drain valve, 20-Filtration water pump, 21-Inlet sewage valve, 30-Backwash water pump, 31-Inlet valve, 32-Suction valve, 40-Filter device, 50-Water storage tank , 51-water inlet valve, 52-water delivery valve, 60-dosing tank, 61-dosing valve, 70-air compressor, 80-internal circulation pipeline.

The realization of the purpose of the utility model, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Referring to Fig. 1 to Fig. 6, an embodiment of the backwash filter of the present invention is proposed, the backwash filter includes a frame, a filter barrel 10 arranged on the frame and a filtered water pump 20 arranged below the frame , the outlet of the filtering water pump 20 is communicated with the inlet 11 of the filter bucket 10 through a communication pipe, and a medicine inlet valve 21 is provided on the communication pipe between the inlet of the filtering water pump 20 and the medicine tank. An exhaust passage is provided on the side wall of the filter barrel 10, and an exhaust valve 14 is arranged on the exhaust passage. The filter barrel 10 includes a liquid outlet 12 and an outlet 13 for backwashing. The liquid outlet 12 of the filter barrel 10 communicates with a water storage container for containing the filtered liquid, and the filtered liquid in the filter barrel 10 is discharged from the liquid outlet 12 into the storage container. in the water container. A water outlet valve 121 is provided on the communication pipe between the liquid outlet 12 of the filter barrel 10 and the water storage container.

As shown in Figure 2, it is the flow chart of the normal use of the filter: in the case of normal use, open the medicine inlet valve 21 and the exhaust valve 14 before starting, after starting, close the exhaust valve 14 after the air is discharged, and then open the water outlet valve 121 , the filtered water pump 20 pumps the filtered liquid into the filter barrel 10, the air squeezed out of the filter barrel 10 is discharged through the exhaust valve 14, and the filtered liquid is filtered from the filter barrel 10 after being filtered by the filter material in the filter barrel 10. The liquid outlet 12 discharges into a water storage container.

The backwash filter also includes a dosing tank 60 and an internal circulation pipeline 80, the dosing tank 60 communicates with the inlet of the filtering water pump 20 through a communication pipeline, and the communication pipeline between the dosing tank 60 and the inlet of the filtering water pump 20 is provided There is a dosing valve 61. One end of the internal circulation pipeline 80 communicates with the liquid outlet 12 of the filter barrel 10 , and the other end of the internal circulation pipeline 80 communicates with the inlet of the filtering water pump 20 . A circulation valve 123 is provided on the internal circulation pipeline 80 .

As shown in Figure 3, it is the flow chart of the internal circulation program of the filter: on the basis of normal use, close the medicine inlet valve 21, the water outlet valve 121, open the medicine dosing valve 61, the circulation valve 123 and the exhaust valve 14, from the medicine dosing Activated carbon powder is added to the tank 60, and the filtered liquid is drawn into the filter bucket 10 by the water pump 20 for filtration. The filtered liquid mixed with powdery activated carbon is discharged into the internal circulation pipeline 80 from the liquid outlet 12 of the filter bucket 10, and flows through the internal circulation pipeline 80. To the inlet of the filtering water pump 20, it is discharged into the filter bucket through the filtering water pump 20 to carry out internal circulation; after the internal circulation, after the activated carbon is distributed on the surface of the filter material, the potion will become clean, stop the internal circulation, and the filtered liquid is filtered Filter in bucket 10, recover normal use state.

After the filtered liquid is filtered, impurities adsorbing organic matter will be distributed in the filter material of the filter barrel 10. After a period of use, the filter material will be blocked by impurities, and the filter material needs to be cleaned. In order to clean the filter material, the backwash filter also includes a backwash water pump 30 arranged under the frame, a filter device 40 for filtering impurities and a water storage tank 50 arranged under the filter barrel 10 . The outlet 13 for backwashing of the filter bucket 10 communicates with the inlet of the filter device 40 , and impurities in the filter bucket 10 are discharged into the filter device 40 through the outlet 13 for backwashing. The filtering device 40 performs solid filtration on the discharged impurities, and filters out the liquid mixed with the impurities.

One side of the water pump for backwashing 30 is provided with an air inlet connected with the outside air, and the other side is provided with an air inlet connected with the air outlet of the air compressor 70 . The outlet of the backwashing water pump 30 is communicated with the liquid outlet 12 of the filter barrel 10, the outlet of the filtering device 40 is communicated with the inlet of the water storage tank 50, and the air compressor 70 fills the air into the backwashing water pump 30 to start it, and the reverse The flushing water pump 30 mixes the air and the remaining liquid filtered out by the filter barrel 10 and presses them into the filter barrel 10 to flush the filter material in the filter barrel 10; In the filter device 40, the filter device 40 performs solid filtration on the discharged impurities, and filters out the liquid mixed in the impurities; .

The outlet of the water storage tank 50 communicates with the inlet of the filtering water pump 20, and the liquid stored in the water storage tank 50 can flow into the filtering water pump 20, and be pumped into the filter barrel 10 by the filtering water pump 20 for circulating filtration, so as to reduce the generation of waste water.

Wherein, the liquid outlet 12 of the filter bucket 10 communicates with the water storage container, the backwash water pump 30 and the internal circulation pipeline 80 through a four-way pipe.

The backwashing outlet 13 of the filter barrel 10 is provided with a blowdown valve 131 on the communication pipe of the inlet of the filter device 40, and the suction port of the backwashing water pump 30 is provided with an air suction valve 32, and at the inlet of the backwashing water pump The air port is provided with an air intake valve 31, and a flushing valve 122 is arranged on the communication pipe between the outlet of the backwash water pump 30 and the liquid outlet 12 of the filter bucket 10, and a flush valve 122 is arranged on the communication pipe between the outlet of the filter device 40 and the inlet of the water storage tank 50. A water inlet valve 51 is arranged on it, and a water delivery valve 52 is arranged on the communication pipe between the outlet of the water storage tank 50 and the inlet of the filtering water pump 20 .

When the filter bucket 10 is cleaned, the filter bucket 10 and the filtering water pump 20 stop working. As shown in Figure 4, it is a flow chart of the backwashing program of the filter: close the medicine inlet valve 21, the dosing valve 61, the water outlet valve 121, the circulation valve 123, the exhaust valve 14 and the water delivery valve 52, and open the suction valve 32 , intake valve 31, flushing valve 122, blowdown valve 131 and water inlet valve 51, open backwashing water pump 30 and air compressor 70, backwashing water pump 30 sends air into the filter barrel 10, to the filter barrel 10 The filter material is washed, and the impurities in the filter material are washed out, and the impurities washed out are mixed with the liquid for washing impurities and discharged into the filter device 40 from the outlet 13 for backwashing; the filter device 40 is used for the discharged impurities and liquid The mixture is filtered, liquid and solid are separated, and the liquid is filtered out, and the filtered liquid flows into the water storage tank 50 under the air pressure of the backwash water pump 30 . When the backwashing is completed, the backwashing water pump 30 is turned off, and the intake valve 31 , the flushing valve 122 , the blowdown valve 131 and the water inlet valve 51 are closed.

In the process of backwashing, there is no need to wash with clean water, which saves water, and it is not necessary to open the sealing cover of the filter during the cleaning process of the filter, and the clogged filter material can be cleaned by simply operating on the machine , It reduces many links in the cleaning operation, and also reduces the problems of personnel in operation, saving time and manpower.

The liquid that flows into the water storage tank 50 can flow to the inlet of the water filtration pump 20 again, as shown in Figure 5, which is a flow chart of the flushing liquid circulation filtration program of the filter: open the water delivery valve 52, and the liquid stored in the water storage tank 50 will vary depending on the height. Potential difference flows into the inlet of the filtering water pump 20 .

When the water for filtration pump 20 is turned on, the liquid flowing into the inlet of the water for filtration pump 20 and the water storage device 50 is drawn into the filter bucket 10 for internal circulation program filtration, and no waste water is generated during the process. Under the premise of strict environmental protection conditions and high waste water treatment costs, no waste water is generated, and the beneficial effect is particularly visible.

Among them, the filter device 40 is a bag filter barrel 10, after the filter bag in the bag filter barrel 10 is backwashed, impurities are accumulated in the filter bag, and after the filter bag is taken out, it is directly sprayed with an air gun , spray the impurities into the recycling bin. During normal use, take out the filter bag in the bag filter barrel 10 and clean it. The cleaning method is to turn the bag filter bag over to the recovery bag and spray it with an air gun to clean it. During this operation, redundant waste water and filtered liquid, greatly reducing the use of water sources, in line with the current environmental protection requirements.

The utility model improves the cleaning process of the original filter, uses the filter barrel 10 to filter the remaining liquid, and uses the backwash water pump 30 to press the filter material to flush the filter material without additional cleaning with clean water, saving water and saving water in the filter. During the cleaning process, there is no need to open the sealing cover of the filter, just operate on the machine to clean the clogged filter element, which reduces many links in the cleaning operation, and also reduces the problems of personnel in operation. It can reduce possible errors in operation, save time and manpower, and solve the problems of time-consuming, labor-consuming, water-consuming and other problems in the cleaning process of the original filter.

The above are only preferred embodiments of the present utility model, and are not therefore limiting the patent scope of the present utility model. All equivalent structural transformations made by using the utility model specification and accompanying drawings are directly or indirectly used in other related technologies. Fields are all included in the scope of patent protection of the utility model in the same way.

Claims (4)

1. A backwash filter, comprising a frame, a filter bucket arranged on the frame and a filtered water pump arranged below the frame, the outlet of the filtered water pump and the inlet of the filter bucket communication, and it is characterized in that it also includes a backwash water pump arranged under the frame, a filter device for filtering impurities and a water storage tank arranged under the filter barrel, and the filter barrel includes a liquid outlet and a backwash The outlet for flushing, the liquid outlet of the filter bucket communicates with the water storage container used to hold the filtered liquid, the backwash outlet of the filter bucket communicates with the inlet of the filter device, and one of the backwash water pumps One side is provided with an air suction port communicated with the outside air, and the other side is provided with an air inlet communicated with the air outlet of the air compressor, the outlet of the backwashing water pump is communicated with the liquid outlet of the filter barrel, and the The outlet of the filter device communicates with the inlet of the water storage tank, and the outlet of the water storage tank communicates with the inlet of the filtering water pump; a water outlet is provided on the communication pipe between the liquid outlet of the filter bucket and the water storage container. valve, a blowdown valve is provided on the connecting pipe between the backwashing outlet of the filter bucket and the inlet of the filter device, an air suction valve is provided at the air suction port of the backwashing water pump, and an air suction valve is arranged on the backwashing water pump. The air inlet of the water pump is provided with an air inlet valve, and a flushing valve is arranged on the communication pipe between the outlet of the water pump for backwashing and the liquid outlet of the filter barrel, and a flushing valve is arranged between the outlet of the filter device and the water storage tank. A water inlet valve is provided on the communication pipeline of the inlet of the water tank, and a water delivery valve is provided on the communication pipeline between the outlet of the water storage tank and the inlet of the filtering water pump. 2. The backwashing filter according to claim 1, wherein the filter device is a bag filter barrel. 3. The backwashing filter according to claim 1 or 2, further comprising a dosing tank and an internal circulation pipeline, the dosing tank communicates with the inlet of the filtering water pump through a communication pipeline, and in the A dosing valve is provided on the communication pipeline between the dosing tank and the inlet of the filtering water pump; one end of the internal circulation pipeline communicates with the liquid outlet of the filter barrel, and the other end of the internal circulation pipeline communicates with the The inlet of the filtering water pump is connected, and a circulation valve is arranged on the internal circulation pipeline. 4. The backwash filter according to claim 3, characterized in that, the liquid outlet of the filter bucket is connected to the water storage container, the backwash water pump, and the internal circulation pipeline through a four-way pipe. connected.

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