CN110204080A - Surgical instrument and operation cloth grass clean waste water treatment system - Google Patents

Abstract

The invention relates to a treatment system for cleaning wastewater of surgical instruments and surgical linen, which is suitable for treating and reusing wastewater of surgical instruments and surgical linen in hospitals, and wastewater in the laundry industry. Including fluff filter, waste water tank, make-up pump, ceramic membrane filter, recoil tank, circulation pump, pure water tank, chemical cleaning tank, pure water, water quality meter, high-pressure pump, sewage collection tank and delivery pump; A fluff filter is installed above the sewage tank, and a replenishment pump is installed next to it. The inlet of the replenishment pump is connected to the sewage tank through a pipe, the outlet of the replenishment pump is connected to the bag filter 1 through a pipe, and the outlet of the circulation pump is filtered through a pipe and a ceramic membrane. The ceramic membrane filter is connected to the backwashing device; the outlet of the high-pressure pump is connected to the reverse osmosis filter, and a high-pressure sensor is installed on the pipeline before entering the reverse osmosis filter; the pure water outlet of the reverse osmosis filter passes through the pipeline , The control valve is directly connected to the pure water tank.

Description

Surgical instruments and surgical linen cleaning wastewater treatment system

technical field

The invention relates to a treatment system for cleaning wastewater of surgical instruments and surgical linen, which is suitable for treatment and reuse of wastewater in hospital surgical instruments and surgical linen cleaning, and wastewater in the laundry industry.

Background technique

With the development of my country's economy and the improvement of people's living standards, a large number of laundries or laundry companies have emerged as large-scale laundry services for individuals, hotels, and enterprises that provide clothing and household items washing services. These companies have a large amount of laundry and discharge a lot of water and waste water. Laundry wastewater contains a large amount of surfactants. The decomposition of surfactants not only consumes dissolved oxygen in water, but also contains nutrient-rich substances. Direct discharge without treatment will damage the water ecological environment, especially affecting the growth and reproduction of aquatic animals and plants. . In addition, in the face of the shortage of urban water resources and the construction of a water-saving society, it is necessary to treat and reuse the wastewater from the laundry industry.

At present, there is a lack of specialized wastewater treatment equipment for hospital surgical instruments and surgical linen cleaning wastewater treatment. Hospital wastewater contains a large number of pathogenic microorganisms, parasite eggs and various viruses, such as roundworm eggs, hepatitis virus, tuberculosis and dysentery bacteria, etc. If the wastewater is directly discharged into the water body without treatment, it will affect the surrounding waters and soil. etc. cause serious pollution, and also bring harm to the drinking water of downstream residents and endanger people's daily life.

Contents of the invention

The object of the present invention is to provide a surgical instrument and surgical linen cleaning wastewater treatment system to treat the surgical instrument and surgical linen cleaning wastewater into clean water.

Surgical instruments and surgical linen cleaning wastewater treatment system is realized by adopting the following technical solutions:

Surgical instruments and surgical linen cleaning treatment system includes fluff filter, sewage tank, replenishment pump, ceramic membrane filter, recoil tank, circulation pump, pure water tank, chemical cleaning tank, pure water quality meter, reverse osmosis filter ( RO filter membrane), clean water flow meter, intermediate water tank, sewage pump, clean water quality meter, high pressure pump, sewage collection tank and delivery pump.

A fluff filter is installed above the sewage tank, and a replenishment pump is installed next to it. The water inlet of the replenishment pump is connected to the sewage tank through a pipe, and the outlet of the replenishment pump is connected to the bag filter 1 through a pipe, and the outlet of the bag filter 1 is passed through a pipe. Connect the water inlet of the circulating pump, and install a low pressure sensor in the middle. The water outlet of the circulation pump is connected with the water inlet of the ceramic membrane filter through a pipeline.

The ceramic membrane filter is assembled by several groups of ceramic membrane filters, and the ceramic membrane filter is equipped with an inorganic ceramic membrane (tube type or flat type).

The ceramic membrane filter is connected with a backwashing device, and the backwashing device is composed of a recoil tank, an intake solenoid valve and an exhaust solenoid valve. One end of the intake solenoid valve is connected to the air source, the other end of the intake solenoid valve is connected to the air inlet of the recoil tank, and one end of the exhaust solenoid valve is connected to the gas outlet of the recoil tank, and the other end is connected to the backwash connection port of the ceramic filter.

The ceramic membrane filter is connected to the chemical cleaning tank through pipelines and control valves, the lower water outlet of the chemical cleaning tank is connected to the inlet of the replenishment pump through pipelines, and the upper water inlet of the chemical cleaning tank is connected to the concentration discharge pipeline of the ceramic membrane filter. After the equipment has been in operation for a period of time, some impurities or chemicals will adhere to the ceramic membrane tube, which needs to be cleaned with specific chemicals. At this time, we need to turn on the replenishment pump and circulation pump, pump the chemical agent mixed with tap water in the chemical cleaning tank into the ceramic membrane filter for cleaning, and then return to the chemical cleaning tank through the clean water and concentrated water for circular cleaning. Because hospital sewage, in addition to general domestic sewage, also contains chemical substances, radioactive wastewater and pathogens. Therefore, it must be cleaned frequently with chemical reagents. Common disinfectants are used for chemical reagents, including bleaching powder, liquid chlorine, sodium hypochlorite, and ozone. Bleach powder can inactivate the enzymes in the bacteria, resulting in death.

The ceramic membrane filter is also connected to the intermediate water tank through pipelines and control valves, and a clean water flow meter is installed therebetween. The intermediate water tank is equipped with an upper floating ball of the intermediate water tank and a lower floating ball of the intermediate water tank. The intermediate water tank is connected to the water inlet of the delivery pump through the control valve and the pipeline, the water outlet of the delivery pump is connected to the water inlet of the bag filter 3, the water outlet of the bag filter 3 is connected to the water inlet of the high-pressure pump through the pipeline, and the A temperature sensor 25 and a purified water quality meter are installed on the pipeline. The outlet of the high-pressure pump is connected to a reverse osmosis filter (RO filter membrane), and a high-pressure sensor is installed on the pipeline before entering the reverse osmosis filter. The pure water outlet of the reverse osmosis filter is directly connected to the pure water tank through the pipeline and the control valve. The middle pipeline needs to be installed with a pure water flow meter and a pure water quality meter, and a floating ball on the pure water tank should be installed in the pure water tank. In addition, the concentrated water outlet of the reverse osmosis filter is respectively connected to the upper water inlet of the intermediate water tank and the sewage collection tank through a pipeline and a control valve.

The sewage collection box needs to install the upper floating ball of the sewage collection box and the lower floating ball of the sewage collection box. The lower outlet of the sewage collection tank is connected to the water inlet of the sewage pump through the pipeline and the control valve, and the water outlet of the sewage pump is directly connected to the water inlet of the second bag filter through the pipeline and the control valve, and the water outlet of the second bag filter is connected to the activated carbon The water inlet of the filter and the water outlet of the activated carbon filter are directly connected to the sewer.

The fluff filter has a fluff filter housing, and a fluff filter is arranged on the upper part of the fluff filter housing.

The upper cover of the filter, the upper cover of the fluff filter is provided with the water inlet of the fluff filter, and the middle part of the fluff filter housing is installed

There is a nylon screen, and the upper side of the fluff filter housing is provided with a fluff filter discharge port for discharging the passing

The fluff and impurities in the sewage are filtered by the nylon screen, which is coarse filtration. The lower side of the fluff filter housing

There is a fluff filter outlet, which is used to discharge the fluff and impurities in the sewage after being filtered by nylon mesh.

For sewage, the bottom side of the fluff filter housing is provided with a fluff filter bottom cover for sewage discharge.

When the lint filter is used, the cleaning sewage of surgical instruments and surgical linen in the hospital flows through the pipeline

Enter the water inlet of the fluff filter, and the middle part of the fluff filter housing is equipped with a nylon screen to remove the fluff and impurities in the sewage

The sieve is cleared out and discharged through the fluff filter discharge port, and the remaining sewage flows through the fluff filter outlet

into the waste water tank. The nylon sieve adopts a nylon sieve with an aperture of 150 mesh.

The structure of the first bag filter is the same as that of the second bag filter and the third bag filter. The first bag filter has a bag filter barrel, and a plurality of filter cloth bags are housed in the bag filter barrel. The upper part of the bag filter barrel is provided with a bag filter water inlet, the lower part of the bag filter barrel is provided with a bag filter water outlet, and the top of the bag filter barrel is provided with a bag filter exhaust port.

When the bag filter one is in use, the sewage enters the bag filter one from the water inlet of the bag filter,

After being filtered by the filter bag, it flows into the bag filter tank and flows out through the outlet of the bag filter. bag type

The bag filter vent on the top of the filter barrel is used to drain excess gas from the tank.

The ceramic membrane filter has a ceramic membrane filter housing, and several ceramic membrane filter housings are equipped with

Inorganic ceramic membrane (tube type or flat type), the bottom of the ceramic membrane filter housing is provided with a ceramic membrane filter for water inflow

The top of the ceramic membrane filter shell is provided with a concentrated water outlet of the ceramic membrane filter, and the top of the ceramic membrane filter shell is

There is a ceramic membrane filter water purification outlet on the upper part, and a ceramic membrane filter reflector is installed on the lower part of the ceramic membrane filter housing.

Flush the mouth.

When the ceramic membrane filter is in use, the sewage pumped out from the sewage tank passes through the water inlet of the ceramic membrane filter

Entering the ceramic membrane filter, the pressurized sewage is filtered through the inorganic ceramic membrane (tube type), and divided into clean water and

Concentrated water and purified water flow out to the intermediate water tank through the outlet of the ceramic membrane filter, and the concentrated water passes through the ceramic membrane filter

The concentrated water outlet returns to the circulation pump to continue circulation. The backwash port of the ceramic membrane filter is connected to the backwash tank, and the backwash

used when.

The recoil tank has a recoil tank body, the upper part of the recoil tank body is provided with a recoil tank air inlet, a pressure gauge mounting

The loading port and the exhaust port of the recoil tank, and the pressure gauge installation port are equipped with pressure gauges.

When the ceramic membrane filter needs backflushing, the inlet of the recoil tank is opened, and the exhaust port of the recoil tank is closed to enter the compressed air.

Air, press the water in the recoil tank into the ceramic membrane filter to clean the surface of the inorganic ceramic membrane, after cleaning

The air inlet of the recoil tank is closed, the exhaust port of the recoil tank is opened, the gas in the recoil tank is discharged, and then re-injected

water. During the whole process, the pressure change in the recoil tank can be monitored through the pressure gauge installed at the pressure gauge installation port.

The reverse osmosis filter is provided with a plurality of reverse osmosis filters. The reverse osmosis filter has a reverse osmosis membrane

The reverse osmosis membrane tube is equipped with RO filter membrane, and the two ends of the reverse osmosis membrane tube are equipped with reverse osmosis filter water outlets.

The reverse osmosis membrane tube is provided with a reverse osmosis filter water inlet.

When the reverse osmosis filter is used, multiple reverse osmosis filters are provided. Install RO filter membrane into reverse osmosis

In the membrane tube, both ends are sealed. The clean water filtered by the ceramic membrane filter passes through the high pressure from the water inlet of the reverse osmosis filter

into the reverse osmosis membrane tube, then squeezed into the RO filter membrane through high pressure, and finally from the reverse osmosis filter

Out of the water outlet is pure water.

When the reverse osmosis filter is used, multiple reverse osmosis filters are set. Multiple reverse osmosis filters are used in parallel. The reverse osmosis filter is equipped with RO filter membrane. RO is the abbreviation of Reverse Osmosis in English, and it means reverse osmosis in Chinese. Generally, the flow of water is from low concentration to high concentration. Once the water is pressurized, it will flow from high concentration to low concentration, which is the so-called reverse osmosis principle: because the pore size of RO filter membrane is one millionth of the hair 0.0001 microns), generally invisible to the naked eye, bacteria and viruses are 5000 times larger than it, and can remove bacteria and viruses in water. Therefore, only water molecules and some mineral ions can pass through (the passing ions have no loss of orientation), and other impurities and heavy metals are discharged from the waste water pipe. This method is used in all seawater desalination processes and astronaut waste water recycling, so the RO filter membrane is also called a high-tech "artificial kidney" outside the body. At home and abroad, medical, military, and civilian fields all use top-level RO filtration membranes for polymer filtration.

Surgical instruments and surgical linen cleaning wastewater treatment system is equipped with electrical control cabinet, equipped with PLC programmable controller, temperature sensor, low pressure sensor, high pressure sensor, pure water quality meter, purified water flow meter, purified water quality meter, pure water The upper float of the tank, the upper float of the middle water tank, the lower float of the middle water tank, the upper float of the sewage collection tank, and the lower float of the sewage collection tank are respectively connected to the controller through the signal control line, and the intake solenoid valve and the exhaust solenoid valve are controlled by the PLC programmable controller. , supply pump, circulation pump, sewage pump, high-pressure pump, delivery pump work.

The wastewater treatment method of the surgical instrument and surgical linen cleaning wastewater treatment system is to treat the surgical instrument and surgical linen cleaning wastewater and the wastewater from the laundry industry into pure water. The specific steps are as follows:

(1) Before the cleaning wastewater flows into the sewage tank, it must first be filtered through a fluff filter to initially filter out impurities such as sediment, human dander, and hair fibers, and then let it enter the sewage tank for collection. Then, the sewage in the sewage tank is pumped into the bag filter 1 by the replenishment pump to filter out impurities such as silt, human dander, hair fibers, etc., and start the circulation pump to extract the waste water in the bag filter 1.

(2) The replenishment pump is first turned on to increase the water pressure in the pipeline to 2kg, and then the circulation pump is turned on again to drive the wastewater into the ceramic membrane filter for filtration. The ceramic membrane filter is assembled by several groups of ceramic membrane filters, and the ceramic membrane filter is equipped with an inorganic ceramic membrane (tube type or flat type). The role of the low-pressure sensor here is to detect the pressure in the pipeline to prevent the water pressure in the pipeline from being insufficient and the circulation pump idling to burn out the motor.

(3) In the process of purifying wastewater, it is necessary to backwash the ceramic filter to prevent the inorganic ceramic membrane (tube type or flat type) from being affected by impurities on the surface and affecting the water production. The process is to open the compressed air by the intake solenoid valve Enter the recoil tank, press the water in the recoil tank into the ceramic membrane filter, wash the surface of the inorganic ceramic membrane (tube type or flat type), reduce the adhesion of impurities on the surface, and close the intake solenoid valve after flushing , the exhaust solenoid valve is opened to discharge the air in the recoil tank, and at the same time fill in the clean water produced by the ceramic membrane filter.

(4) After the wastewater is treated by the ceramic membrane filter, it is divided into two parts: clean water and concentrated water. The concentrated water returns to the circulating pump and continues to enter the ceramic membrane filter for treatment. The purified water is transported to the intermediate water tank after the flow rate is measured online by the purified water flow meter. When the water level in the intermediate water tank reaches the floating ball on the intermediate water tank, to prevent the water from overflowing, the replenishment pump and circulation pump will be turned off.

(5) Secondary treatment is required for clean water collected in the intermediate water tank. The transfer pump pumps the water in the intermediate water tank to the third bag filter for further filtration. The third bag filter uses more purpose cloth bags to filter For finer impurities, the temperature of the clean water passing through the bag filter 3 is measured by a temperature sensor. If the water temperature is higher than 40°C, the RO filter membrane in the reverse osmosis filter will be damaged. If the water temperature is too high, neither the delivery pump nor the high pressure pump will be able to start. When the water temperature is lower than 40 ℃, the high-pressure pump starts to pressurize the clean water in the pipeline and transport it to the RO filter membrane in the reverse osmosis filter. At the same time, the high-pressure sensor measures the water pressure in the pipeline online to prevent damage to the RO filter membrane caused by excessive water pressure.

(6) The water treated by the RO filter membrane of the reverse osmosis filter is divided into pure water and concentrated water. The pure water is directly connected to the pure water tank through the pipeline, which can be used for secondary use. There is a floating ball on the pure water tank in the pure water tank , when the water level in the pure water tank is too high, it can control the delivery pump and the high-pressure pump to stop. At the same time, a pure water flow meter and a pure water quality meter are installed on this section of the pipeline to monitor the flow and quality of the pure water. The other part of the concentrated water will be discharged according to the size of the data monitored by the water purification meter. If the water quality is good, it will be discharged into the middle water tank, and if the water quality is poor, it will be discharged into the sewage collection tank. and high pressure pump switch.

(7) When the water level in the sewage collection tank is too high, it is necessary to turn on the sewage pump to discharge, but when the floating ball under the sewage collection tank falls, it means that the water level is very low, and the sewage pump should stop working. The sewage needs to be double-filtered by bag filter 2 and activated carbon filter before it can be discharged to the outside.

The core of the ceramic membrane filter is the inorganic ceramic membrane (tubular or flat), which is a high-tech in the field of nanoscale separation, with good corrosion resistance and high temperature resistance. . The filtration form is "cross-flow filtration". Driven by pressure, the raw material liquid flows through the membrane tube, the small molecular components pass through the membrane, and the macromolecular components are intercepted by the membrane, realizing the low-temperature separation, concentration, Purification treatment. Its advantages are: high temperature resistance, can realize online disinfection; good chemical stability, can resist microbial degradation. Good stability against organic solvents, corrosive gases and microbial attack. High mechanical strength, high pressure resistance, good wear resistance and erosion resistance; narrow pore size distribution, good separation performance, large penetration, can be repeatedly cleaned and regenerated, and has a long service life.

The design of the wastewater treatment system for cleaning surgical instruments and surgical linen is reasonable. The wastewater from cleaning surgical instruments and surgical linen is treated into pure water, which enters the pure water tank and can be used for secondary use. This greatly saves water consumption and achieves the goal of energy saving and emission reduction. purpose, and occupies a small area, and the installation and post-maintenance are also simple, which further saves the initial investment cost. Because the hospital's surgical instruments and linen cleaning sewage, in addition to general washing sewage, also contains chemical substances, radioactive wastewater and pathogens. Therefore, it must be cleaned frequently with chemical reagents. The disinfectants used in chemical reagents include bleaching powder, liquid chlorine, sodium hypochlorite, and ozone. Bleach powder can inactivate the enzymes in the bacteria, resulting in death. Therefore, this system can not only effectively remove the residues of conventional detergents in the wastewater from cleaning surgical instruments and surgical linen, but also remove harmful bacteria and viruses in the wastewater. The water can be discharged up to the standard, and can even be used twice.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing:

Fig. 1 is the structure and process flow diagram of the wastewater treatment system for cleaning surgical instruments and surgical linen;

Fig. 2 is a structural schematic diagram of a fluff filter of a surgical instrument and surgical linen cleaning wastewater treatment system;

Fig. 3 is a schematic diagram of the bag filter structure of the surgical instrument and surgical linen cleaning wastewater treatment system;

Fig. 4 is a structural schematic diagram of the recoil tank of the wastewater treatment system for cleaning surgical instruments and surgical linen;

Fig. 5 is a structural schematic diagram of a ceramic membrane filter of a surgical instrument and surgical linen cleaning wastewater treatment system;

Fig. 6 is a structural schematic diagram of a reverse osmosis filter in a wastewater treatment system for cleaning surgical instruments and surgical linen.

In the figure: 1. Fluff filter, 2. Sewage tank, 3. Supply pump, 4. Bag filter 1, 5. Low pressure sensor, 6. Ceramic membrane filter, 7. Air intake solenoid valve, 8. Exhaust Solenoid valve, 9, recoil tank, 10, circulating pump, 11, floating ball on pure water tank, 12, pure water tank, 13, pure water flow meter, 14, chemical cleaning tank, 15, pure water quality meter, 16, Reverse osmosis filter (RO filter membrane), 17. Clean water flow meter (meter), 18. Upper floating ball in the middle water tank, 19. Lower floating ball in the middle water tank, 20. Middle water tank, 21. Sewage pump, 22. Bag filter 2. 23. Activated carbon filter, 24. High pressure sensor, 25. Temperature sensor, 26. Purified water quality meter, 27. High pressure pump, 28. Floating ball on sewage collection box, 29. Sewage collection box, 30. Floating down sewage collection box Ball, 31, transfer pump, 32, bag filter three;

1-1, fluff filter housing, 1-2, fluff filter water inlet, 1-3, filter discharge port, 1-4, fluff filter water outlet, 1-5, nylon mesh, 1-6 , fluff filter bottom cover;

4-1, bag filter barrel, 4-2, bag filter water inlet, 4-3, filter cloth bag, 4-4, bag filter water outlet, 4-5, bag filter exhaust mouth;

6-1. Ceramic membrane filter housing, 6-2. Water inlet of ceramic membrane filter, 6-3. Water purification outlet of ceramic membrane filter

Port, 6-4, ceramic membrane filter backwash port, 6-5, inorganic ceramic membrane, 6-6, ceramic membrane filter concentrated

water outlet;

9-1. Recoil tank body, 9-2. Air inlet of recoil tank, 9-3. Pressure gauge installation port, 9-4. Pressure gauge, 9-5.

Recoil tank vent;

16-1, reverse osmosis membrane tube, 16-2, reverse osmosis filter water outlet, 16-3, RO filter membrane, 16-4, reverse osmosis

Through the filter inlet.

Detailed ways

Referring to accompanying drawings 1-6, the surgical instrument and surgical linen cleaning treatment system includes a fluff filter 1, a sewage tank 2, a replenishment pump 3, a ceramic membrane filter 6, a recoil tank 9, a circulation pump 10, a pure water tank 12, Chemical cleaning tank 14, pure water quality meter 15, reverse osmosis filter (RO filter membrane) 16, purified water flow meter 17, intermediate water tank 20, sewage pump 21, purified water quality meter 26, high pressure pump 27, sewage collection box 29 , Delivery pump 31.

A fluff filter 1 is installed above the sewage tank 2, and a supply pump 3 is installed next to it. The water inlet of the supply pump 3 is connected to the sewage tank 2 through a pipeline, and the water outlet of the supply pump 3 is connected to a bag filter-4 through a pipeline, and bag filter The water outlet of device one 4 is connected to circulating pump 10 water inlets by pipeline, and low pressure sensor 5 will also be installed in the middle of it. The water outlet of the circulating pump 10 is connected with the water inlet of the ceramic membrane filter 6 through a pipeline.

The ceramic membrane filter 6 is assembled by several groups of ceramic membrane filters, and the ceramic membrane filter 6 is equipped with a tubular or flat inorganic ceramic membrane.

The ceramic membrane filter 6 is connected with a backwashing device, and the backwashing device is composed of a backwash tank 9 , an intake solenoid valve 7 and an exhaust solenoid valve 8 . One end of the intake solenoid valve 7 is connected to the air source, the other end of the intake solenoid valve 7 is connected to the air inlet of the recoil tank 9, one end of the exhaust solenoid valve 8 is connected to the gas outlet of the recoil tank 9, and the other end is connected to the backwash of the ceramic filter 6 connected to the mouth.

Ceramic membrane filter 6 is connected with chemical cleaning tank 14 by pipeline, control valve, and the lower water outlet of chemical cleaning tank 14 is connected with replenishment pump 3 water inlets by pipeline, and the upper water inlet of chemical cleaning tank 14 is connected with ceramic membrane filter 6. Concentrated discharge pipes are connected. After the equipment has been in operation for a period of time, some impurities or chemicals will adhere to the ceramic membrane tube, which needs to be cleaned with specific chemicals. At this time, we need to turn on the replenishment pump 3 and the circulating pump 10, pump the chemical agent mixed with tap water into the ceramic membrane filter 6 for cleaning in the chemical cleaning tank, and then return to the chemical cleaning tank 14 through the clean water and concentrated water. , cycle cleaning. Because hospital sewage, in addition to general domestic sewage, also contains chemical substances, radioactive wastewater and pathogens. Therefore, it must be cleaned frequently with chemical reagents. The chemical reagents use disinfectants, such as bleaching powder, liquid chlorine, sodium hypochlorite, and ozone. Bleach powder can inactivate the enzymes in the bacteria, resulting in death.

Ceramic membrane filter 6 is also connected with intermediate water tank 20 through pipeline, control valve, and clean water flowmeter 17 is installed therebetween. The middle water tank upper float 18 and the middle water tank lower float 19 are housed in the middle water tank. The intermediate water tank 20 is connected to the water inlet of the delivery pump 31 through a control valve and a pipeline, and the water outlet of the delivery pump 31 is connected to the water inlet of the bag filter 3 32, and the water outlet of the bag filter 3 32 is connected to the water inlet of the high-pressure pump 27 through a pipeline , and a temperature sensor 25 and a clean water quality meter 26 are installed on the pipeline connected in the middle. The water outlet of the high-pressure pump 27 is connected to a reverse osmosis filter (RO filter membrane) 16, and a high-pressure sensor 24 is installed on the pipeline before entering the reverse osmosis filter 16. The pure water outlet of the reverse osmosis filter 16 is directly connected to the pure water tank 12 through pipelines and control valves. The middle pipeline needs to be installed with a pure water flow meter 13 and a pure water quality meter 15, and a floating ball on the pure water tank should be installed in the pure water tank 11. In addition, the concentrated water outlet of the reverse osmosis filter 16 is respectively connected to the upper water inlet of the intermediate water tank 20 and the sewage collection tank 29 through a pipeline and a control valve.

In the sewage collection box 29, the upper float 28 of the sewage collection box and the lower float 30 of the sewage collection box need to be installed. The lower outlet of the sewage collection box 29 is connected to the water inlet of the sewage pump 21 through the pipeline and the control valve, and the water outlet of the sewage pump 21 is directly connected to the water inlet of the bag filter two 22 through the pipeline and the control valve, and the bag filter two 22 The water outlet is connected to the water inlet of the activated carbon filter 23, and the water outlet of the activated carbon filter 23 is directly connected to the sewer.

Described fluff filter 1 has fluff filter housing 1-1, and fluff filter housing 1-1 top is provided with

The fluff filter upper cover is provided, and the fluff filter upper cover is provided with fluff filter water inlet 1-2, and the fluff filter

Nylon screen 1-5 is housed in the middle part of device housing 1-1, and fluff filter housing 1-1 top side is provided with fluff

The filter outlet 1-3 is used to discharge the fluff and impurities in the sewage filtered by the nylon screen 1-5,

for coarse filtration. One side of the bottom of the fluff filter housing 1-1 is provided with a fluff filter outlet 1-4 for draining

Put the sewage after filtering through the nylon screen 1-5 to remove the fluff and impurities in the sewage, and the fluff filter housing 1-1

Bottom side is provided with fluff filter bottom cover 1-6, is used for blowdown.

When the lint filter 1 is in use, the cleaning sewage of surgical instruments and surgical linen in the hospital flows through the pipeline

Enter the fluff filter water inlet 1-2, and the nylon screen mesh 1-5 in the middle part of the hair filter housing 1-1 can remove the

The fluff and impurity sieves are removed and discharged through the discharge port 1-3 of the fluff filter, and the remaining sewage is discharged through the fluff filter.

Hair filter water outlet 1-4 flows into sewage tank 2. The nylon screen 1-5 adopts a nylon mesh with an aperture of 150 mesh.

The structure of the bag filter one 4 is the same as that of the bag filter two 22 and the bag filter three 32. The bag filter one 4 has a bag filter barrel 4-1, and the bag filter barrel 4-1 is equipped with a plurality of filter cloth bags 4-3, the upper part of the bag filter barrel 4-1 is provided with a bag filter water inlet 4-2, and the lower part of the bag filter barrel 4-1 is provided with a bag filter The device water outlet 4-4, the top of the bag filter barrel 4-1 is provided with a bag filter air outlet 4-5.

When the bag filter-4-1 is in use, sewage enters the bag filter from the water inlet 4-2 of the bag filter.

The filter one 4 flows into the bag filter tank body 4-1 through the filtration of the filter cloth bag 4-3, and passes through the bag filter

The device water outlet 4-4 flows out. The bag filter exhaust port 4-5 at the top of the bag filter barrel body 4-1 is used for discharging

Remove excess gas from the tank.

The ceramic membrane filter 6 has a ceramic membrane filter housing 6-1, a ceramic membrane filter housing 6-1

A number of inorganic ceramic membranes (tube or flat) 6-5 are installed inside, and the bottom of the ceramic membrane filter housing 6-1 is set

There is a ceramic membrane filter water inlet 6-2, and the top of the ceramic membrane filter housing 6-1 is provided with a ceramic membrane filter thickener.

Water outlet 6-6, ceramic membrane filter housing 6-1 top is provided with ceramic membrane filter water purification outlet 6-6, ceramic membrane filter

The lower part of the membrane filter housing 6-1 is provided with a ceramic membrane filter backwash port 6-4.

When the ceramic membrane filter 6 was in use, the sewage extracted from the sewage tank was discharged from the water inlet of the ceramic membrane filter.

6-2 enters the ceramic membrane filter 6, and the pressurized sewage is filtered through the inorganic ceramic membrane (tube type) 6-5, and then divided into

into clean water and concentrated water, and the clean water flows out to the intermediate water tank 20 through the ceramic membrane filter clean water outlet 6-3, and the concentrated water passes through

The concentrated water outlet 6-6 of the ceramic membrane filter is returned to the circulation pump 10 to continue circulation. Ceramic membrane filter backwash

Port 6-4 is connected to backwash tank 9 and used for backwashing.

The recoil tank 9 has a recoil tank body 9-1, and the upper part of the recoil tank body 9-1 is provided with a recoil tank air inlet

9-2, the pressure gauge installation port 9-3 and the recoil tank exhaust port 9-5, the pressure gauge installation port 9-3 is equipped with a pressure gauge 9-4.

When the ceramic membrane filter 6 needs recoil, the air inlet 9-2 of the recoil tank is opened, and the exhaust port 9-5 of the recoil tank is closed

Close and enter the compressed air, press the water in the recoil tank body 9-1 into the ceramic membrane filter 6 to clean the inorganic ceramic membrane

surface, after cleaning, the air inlet 9-1 of the recoil tank is closed, the exhaust port 9-5 of the recoil tank is opened, and the recoil tank body

9-1 The gas inside is discharged, and then water is refilled. The whole process can be installed through the pressure gauge installation port 9-3

The pressure gauge 9-4 monitors the pressure change in the recoil tank 9.

The reverse osmosis filter 16 is provided with a plurality of reverse osmosis filters. The reverse osmosis filter 16 has

Reverse osmosis membrane tube 16-1, RO filter membrane 16-3 is housed in the reverse osmosis membrane tube 16-1, two reverse osmosis membrane tubes 16-1

A reverse osmosis filter water outlet 16-2 is provided at the end, and a reverse osmosis filter inlet port 16-1 is provided on the reverse osmosis membrane tube 16-1.

Water outlet 16-4.

When the reverse osmosis filter 16 is in use, multiple reverse osmosis filters are provided. Pack RO filter membrane 16-3

into the reverse osmosis membrane tube 6-1, with both ends sealed. The clean water filtered by the ceramic membrane filter is passed through high pressure from reverse osmosis

The water inlet 1 of the filter is driven into the reverse osmosis membrane tube 16-1, and then enters the RO filter membrane through high-pressure extrusion

Inside, and finally flow out from the water outlet 2 of the reverse osmosis filter, which is pure water.

The reverse osmosis filter 16 is provided with multiple reverse osmosis filters during use. Multiple reverse osmosis filters are used in parallel. The reverse osmosis filter is equipped with RO filter membrane. RO is the abbreviation of Reverse Osmosis in English, and it means reverse osmosis in Chinese. Generally, the flow of water is from low concentration to high concentration. Once the water is pressurized, it will flow from high concentration to low concentration, which is the so-called reverse osmosis principle: because the pore size of the RO filter membrane is one millionth of the hair ( 0.0001 microns), generally invisible to the naked eye, bacteria and viruses are 5000 times larger than it, and can remove bacteria and viruses in water. Therefore, only water molecules and some mineral ions can pass through (the passing ions have no loss of orientation), and other impurities and heavy metals are discharged from the waste water pipe. This method is used in all seawater desalination processes and astronaut waste water recycling, so the RO filter membrane is also called a high-tech "artificial kidney" outside the body. At home and abroad, medical, military, and civilian fields all use top-level RO membranes for polymer filtration.

Surgical instruments and surgical linen cleaning wastewater treatment system is equipped with electrical control cabinet, equipped with PLC programmable controller, temperature sensor 25, low pressure sensor 5, high pressure sensor 24, pure water quality meter 15, purified water flow meter 17, purified water The water quality meter 26, the upper floating ball of the pure water tank, the upper floating ball of the middle water tank 18, the lower floating ball of the middle water tank 19, the upper floating ball of the sewage collection box 28, and the lower floating ball of the sewage collection box 30 are respectively connected with the controller through the signal control line, through the PLC programmable controller Control the intake solenoid valve 7, the exhaust solenoid valve 8, the supply pump 3, the circulation pump 10, the sewage pump 21, the high pressure pump 27, and the transfer pump 31 to work.

The wastewater treatment method of the surgical instrument and surgical linen cleaning wastewater treatment system is to treat the surgical instrument and surgical linen cleaning wastewater and the wastewater from the laundry industry into pure water. The specific steps are as follows:

(1) Before the cleaning wastewater flows into the sewage tank 2, it must first be filtered through the fluff filter 1 to initially filter out impurities such as sediment, human dander, and hair fibers, and then let it enter the sewage tank 2 for collection. Then by the replenishment pump 3, the sewage in the sewage tank 2 is pumped into the bag filter-4 to filter out impurities such as silt, human dander, hair fibers, etc., start the circulation pump 10, and extract the bag filter-4. 4 waste water.

(2) The replenishment pump 3 is first turned on to increase the water pressure in the pipeline to 2kg, and then the circulation pump 10 is turned on again to pump the wastewater into the ceramic membrane filter 6 for filtration. The ceramic membrane filter 6 is assembled by several groups of ceramic membrane filters, and the ceramic membrane filter 6 is equipped with an inorganic ceramic membrane (tube type or flat type). The function of the low-pressure sensor 5 here is to detect the pressure in the pipeline, so as to prevent the circulating pump 10 from idling due to insufficient water pressure in the pipeline and burn out the motor.

(3) In the process of purifying wastewater, it is necessary to backwash the ceramic filter 6 to prevent the inorganic ceramic membrane (tubular or flat plate) from being affected by impurities on the surface and affecting the water production. The process is to open the intake solenoid valve 7 Compressed air enters the recoil tank 9, presses the water in the recoil tank into the ceramic membrane filter 6, scours the surface of the inorganic ceramic membrane (tubular or flat) to reduce the adhesion of impurities on the surface, and carries out The air solenoid valve 7 is closed, and the exhaust solenoid valve 8 is opened to discharge the air in the recoil tank 9, and simultaneously replenish the purified water produced by the ceramic membrane filter 6.

(4) After being treated by the ceramic membrane filter 6, the waste water is divided into clean water and concentrated water. The concentrated water returns to the circulation pump 10 and continues to enter the ceramic membrane filter 6 for treatment. The purified water is transported to the intermediate water tank 20 after being measured online by the purified water flowmeter 17. When the water level in the intermediate water tank 20 reaches the floating ball 18 on the intermediate water tank, the supply pump 3 and the circulation pump 10 will be closed to prevent the water from overflowing. .

(5) Secondary treatment is required for the clean water collected in the middle water tank 20. The transfer pump 31 pumps the water in the middle water tank 20 to the bag filter 3 32 for re-filtering. The bag filter 3 32 uses more The multi-purpose cloth bag filters finer impurities, and the purified water passing through the bag filter 32 passes through the temperature sensor 25 to measure the temperature, and the RO filter membrane 16 will be damaged if the water temperature is higher than 40°C. If the water temperature is too high delivery pump 31 and high pressure pump 27 will not start. When the water temperature is lower than 40°C, the high-pressure pump 27 starts to pressurize the clean water in the pipeline and transport it into the RO filter membrane 16. At the same time, the high-pressure sensor 24 measures the water pressure in the pipeline online to prevent damage to the RO filter membrane 16 due to excessive water pressure.

(6) The water treated by the RO filter membrane of the reverse osmosis filter 16 is divided into pure water and concentrated water. The pure water is directly connected to the pure water tank 12 through a pipeline for secondary use. There is pure water in the pure water tank 12 The floating ball 11 on the box can control the delivery pump 31 and the high pressure pump 27 to stop when the water level in the pure water tank 11 is too high. At the same time, a pure water flow meter 13 and a pure water quality meter 15 are installed on this section of the delivery pipeline, which are used to monitor the flow and water quality of the pure water. The other part of concentrated water is then determined according to the size of the data monitored by the clean water quality meter 26. The water quality is good and it is discharged into the middle water tank 20. 28 controls the switch of delivery pump 31 and high-pressure pump 27 in front.

(7) When the water level in the sewage collection tank 29 is too high, it is necessary to turn on the sewage pump 21 to discharge, but when the floating ball 30 under the sewage collection tank falls, it means that the water level is very low, and the sewage pump 21 should stop working. When the drainage is normally started, The sewage in the sewage collection box 29 needs to be discharged externally through the dual filtration of the bag filter 22 and the activated carbon filter 23.

The core of the ceramic membrane filter 6 is an inorganic ceramic membrane (tubular or flat), which is a high-tech in the field of nanoscale separation, with good corrosion resistance, high temperature resistance, etc. features. The filtration form is "cross-flow filtration". Driven by pressure, the raw material liquid flows through the membrane tube, the small molecular components pass through the membrane, and the macromolecular components are intercepted by the membrane, realizing the low-temperature separation, concentration, Purification treatment. Its advantages are: high temperature resistance, can realize online disinfection; good chemical stability, can resist microbial degradation. Good stability against organic solvents, corrosive gases and microbial attack. High mechanical strength, high pressure resistance, good wear resistance and erosion resistance; narrow pore size distribution, good separation performance, large penetration, can be repeatedly cleaned and regenerated, and has a long service life.

Claims (10)

1. a kind of surgical instrument and operation cloth grass cleaning treatment system, which is characterized in that including lint filter, foul water tank, benefit To pump, purpose ceramic-film filter, recoil tank, circulating pump, pure water tank, chemical cleaning case, pure water water quality table, reverse osmosis filter, net Water flowmeter, intermediate water tank, dredge pump, water purification water quality table, high-pressure pump, dirty water collecting tank and delivery pump；

Lint filter is installed above foul water tank, replenishment pump is aside installed, replenishment pump water inlet passes through pipeline and sewage Case is connected, and replenishment pump water outlet connects bag filter one by pipeline, and the water outlet of bag filter one is connected by pipeline Circulating pump water inlet, will also install low pressure sensor among it, and circulating pump water outlet is intake by pipeline and purpose ceramic-film filter Mouth connection；

Purpose ceramic-film filter is connected with back purge system, and back purge system is by recoil tank, intake solenoid valve and exhaust solenoid valve group At；

Intake solenoid valve one end connects gas source, and the intake solenoid valve other end is connected with recoil canister incoming gas mouth, exhaust solenoid valve one end The connection recoil tank gas outlet other end is connected with ceramic filter backwash connector；

Purpose ceramic-film filter is connected by pipeline, control valve and chemical cleaning case, and the lower outlet of chemical cleaning case passes through pipeline It connects and is connected with the replenishment pump advance mouth of a river, the upper water inlet of chemical cleaning case with the dense pipeline of the row of purpose ceramic-film filter；

Purpose ceramic-film filter also passes through pipeline, control valve and intermediate water tank and connects, and is equipped with net water flux meter, intermediate water tank therebetween It is provided with floating ball under intermediate water tank upper floating ball and intermediate water tank, intermediate water tank connects delivery pump water inlet by control valve, pipeline, The water inlet of the water outlet connection bag filter three of delivery pump, the water outlet of bag filter three connect high-pressure pump by pipeline The water outlet connection of water inlet, and mounting temperature sensor and water purification water quality table on the pipeline of centre connection, high-pressure pump is anti- Percolating filter installs high pressure sensor on the pipeline into before reverse osmosis filter；The pure water outlet of reverse osmosis filter is logical Piping, control valve are directly accessed pure water tank, and intermediate conduit needs to install pure water flowmeter and pure water water quality table, and in pure water In case install pure water tank upper floating ball, reverse osmosis filter concentrated water outlet respectively by pipeline, control valve be connected to intermediate water tank and Water inlet on dirty water collecting tank；

Need to install floating ball under dirty water collecting tank upper floating ball and dirty water collecting tank, the lower outlet of dirty water collecting tank in dirty water collecting tank The water inlet of dredge pump is connect by pipeline, control valve, the water outlet of dredge pump is directly accessed bag type filtering by pipeline, control valve Two water inlet of device, the water inlet of the water outlet access active carbon filter of bag filter two, the water outlet of active carbon filter It is directly accessed sewer.

2. surgical instrument according to claim 1 and operation cloth grass cleaning treatment system, which is characterized in that

The lint filter has lint filter shell, and lint filter upper part of the housing is arranged villous and filters

Device upper cover, lid is equipped with lint filter water inlet on lint filter, and middle part is equipped in lint filter shell

Nylon screen, lint filter upper part of the housing side are provided with lint filter discharge outlet, pass through Buddhist nun for discharging

Imperial the screen to filtrate is got off villus and impurity in sewage, is coarse filtration, the setting of lint filter lower part of the housing side

Villous filter water outlet, for discharging after the villus and impurity that nylon screen filters in removal sewage

Sewage, lint filter housing bottom side are provided with lint filter bottom cover, are used for blowdown.

3. surgical instrument according to claim 1 and operation cloth grass cleaning treatment system, which is characterized in that

One structure of bag filter is identical as bag filter two and three structure of bag filter, and bag filter one has There is bag filter staving, bag filter staving is provided with multiple filter cloth bags, and marsupial is arranged in bag filter staving top Formula filter water inlet, bag filter staving lower part are provided with bag filter water outlet, set at the top of bag filter staving It is equipped with bag filter exhaust outlet.

4. surgical instrument according to claim 1 and operation cloth grass cleaning treatment system, which is characterized in that

The purpose ceramic-film filter has purpose ceramic-film filter shell, and purpose ceramic-film filter shell is provided with several

Inorganic ceramic membrane, purpose ceramic-film filter housing bottom are provided with purpose ceramic-film filter water inlet, purpose ceramic-film filter

Case top is provided with the outlet of purpose ceramic-film filter concentrated water, and purpose ceramic-film filter upper part of the housing is provided with ceramic membrane mistake

Filter water purification outlet, purpose ceramic-film filter lower part of the housing are provided with purpose ceramic-film filter backwash mouth.

5. surgical instrument according to claim 1 and operation cloth grass cleaning treatment system, which is characterized in that

The recoil tank has recoil tank body, and recoil tank body top is provided with recoil canister incoming gas mouth, pressure gauge peace

Mouth and recoil tank exhaust outlet are filled, pressure gauge installing port is equipped with pressure gauge.

6. surgical instrument according to claim 1 and operation cloth grass cleaning treatment system, which is characterized in that

Reverse osmosis filter is provided with more reverse osmosis filters；The reverse osmosis filter has reverse osmosis membrane

Pipe, reverse osmosis membrane tube are provided with RO filter membrane, and reverse osmosis membrane tube both ends are provided with reverse osmosis filter water outlet,

Reverse osmosis filter water inlet is provided in reverse osmosis membrane tube.

7. surgical instrument according to claim 1 and operation cloth grass cleaning treatment system, which is characterized in that

The purpose ceramic-film filter is assembled into using several groups purpose ceramic-film filter, and tubular type or plate are housed in purpose ceramic-film filter Formula inorganic ceramic membrane.

8. surgical instrument according to claim 1 and operation cloth grass cleaning treatment system, which is characterized in that

Reverse osmosis filter is provided with more, and more reverse osmosis filters are used in parallel.

9. surgical instrument according to claim 1 and operation cloth grass cleaning treatment system, which is characterized in that

Surgical instrument and operation cloth grass cleaning waste water treatment system are configured with electric control cabinet, and PLC programmable controller, temperature are housed Spend sensor, low pressure sensor, high pressure sensor, pure water water quality table, net water flux table, water purification water quality table, pure water tank upper floating ball, Floating ball, dirty water collecting tank upper floating ball, dirty water collecting tank are floated downward under intermediate water tank upper floating ball, intermediate water tank is controlled by signal respectively Line is connected with controller, controls intake solenoid valve, exhaust solenoid valve, replenishment pump, circulating pump, row by PLC programmable controller Dirty pump, high-pressure pump, conveying pump work；At the waste water of surgical instrument and operation cloth grass cleaning treatment system described in claim 1 Reason method, which is characterized in that by surgical instrument and operation cloth grass cleaning waste water, do washing industry wastewater treatment at pure water, specifically Steps are as follows:

(1) the advanced filtering for crossing lint filter is wanted before it will clean waste water and flow into foul water tank, tentatively filters out silt, human body skin The impurity such as bits, hair fiber, then it is allowed to collect into people's foul water tank；Then the sewage in foul water tank is evacuated to by bag by replenishment pump The impurity such as silt therein, human body scurf, hair fiber are filtered out in formula filter one again, start circulating pump, extract pocket type mistake Waste water in filter one；

(2) replenishment pump, which is first opened, promotes hydraulic pressure in pipeline to 2kg, and then circulating pump, which is then turned on, squeezes into ceramic membrane filter for waste water Processing is filtered in device, purpose ceramic-film filter is assembled into using several groups purpose ceramic-film filter, is equipped in purpose ceramic-film filter Inorganic ceramic membrane, the here effect of low pressure sensor are detection manifold pressures, prevent the inadequate circulating pump idle running of hydraulic pressure in pipeline To burn out motor；

(3) it during purifying waste water, needs to backwash ceramic filter, prevents inorganic ceramic membrane miscellaneous because of surface To influence water yield, process is exactly that intake solenoid valve opening compressed air enters in recoil tank for matter attachment, will be recoiled in tank Hydraulic pressure enter in purpose ceramic-film filter, wash away the surface of inorganic ceramic membrane, reduce its surface impurity attachment, rinse terminate it is laggard Pneumoelectric magnet valve is closed, and exhaust solenoid valve, which is opened, drains air in recoil tank, while filling into the produced water purification of purpose ceramic-film filter；

(4) waste water is divided into water purification and concentrated water two parts after purpose ceramic-film filter is handled, concentrated water return to before circulating pump continue into Entering purpose ceramic-film filter to be handled, water purification is transported in intermediate water tank after net water flux table on-line determination flow, when It when water level reaches intermediate water tank upper floating ball in intermediate water tank, prevents water from diffusing out, will allow replenishment pump and circulation pump；

(5) water purification, which collects in, also needs to carry out secondary treatment in intermediate water tank, and the water in intermediate water tank is extracted into pocket type by delivery pump It is for re-filtering in filter three, using more purpose cloth bags to filter more tiny impurity, warp in bag filter three Cross bag filter three；Water purification pass through temperature sensor measurement temperature, water temperature be higher than 40 DEG C can be in reverse osmosis filter RO filter membrane is damaged, if water temperature over-high delivery pump and high-pressure pump cannot all start, water temperature is lower than 40 DEG C, high-pressure pump Starting to water purification pressurized delivered in pipeline into the RO filter membrane in reverse osmosis filter, while high pressure sensor on-line measurement pipeline Interior hydraulic pressure prevents hydraulic pressure excessively high and damages to RO filter membrane film；

(6) processed that moisture is pure water and concentrated water by the RO filter membrane of reverse osmosis filter, pure water is directly connect by pipeline Enter pure water tank, for secondary use, there is pure water tank upper floating ball in pure water tank, the controllable delivery pump when water level is excessively high in pure water tank Stop with high-pressure pump, while pure water flowmeter and pure water water quality table being installed on this section of conveyance conduit, for monitoring pure water Flow and water quality situation, another part concentrated water then determine exhaust position, water according to the size of data that water purification water quality table is monitored Matter is good to be just discharged into intermediate water tank, and water quality inferiority is just discharged into dirty water collecting tank, in dirty water collecting tank before the control of dirty water collecting tank upper floating ball The switch of face delivery pump and high-pressure pump；

(7) when water level is excessively high in dirty water collecting tank, it is necessary to open dredge pump and be discharged, but when floating ball under dirty water collecting tank Illustrate that water level is very low when falling, dredge pump will stop working, and when normally-open draining, the sewage in dirty water collecting tank need to pass through bag The double filtration of formula filter two and active carbon filter just can be discharged externally.

10. the wastewater treatment method of surgical instrument according to claim 9 and operation cloth grass cleaning treatment system, feature It is, after equipment runs a period of time, some impurity or chemical agent, which are understood, to be attached on ceramic-film tube, is needed with specificization Reagent cleaning is learned, at this moment needs to open replenishment pump and circulating pump, will be taken out in chemical cleaning case with the chemical agent that tap water has been converted Enter in purpose ceramic-film filter and cleaned, is then returned in chemical cleaning case by water purification and concentrated water road, wash cycles.