Solid-liquid separation device for medical wastewater

Abstract

The utility model discloses a solid-liquid separation device for medical wastewater, which comprises a filter assembly, a constant temperature assembly and an air pump assembly, and is characterized in that the filter assembly comprises a rotary barrel, a sealing cover arranged above a rotary base and a liquid discharge pipe arranged below the sealing cover; the output end of the motor is fixedly connected with the center of the bottom of the rotating barrel; an air inlet is formed in the sealing cover, a filter screen cylinder is arranged on the sealing cover, the filter screen cylinder is located under the liquid discharging pipe, and the filter screen cylinder is fixedly connected with the sealing cover; the liquid discharging pipe is fixedly connected with the sealing cover in a sleeving mode, a collecting device is arranged on the liquid discharging pipe, and the liquid discharging pipe is fixedly connected with the collecting device in a sleeving mode; a temperature sensor is arranged in the rotary barrel and is fixedly connected with the inner wall of the rotary barrel; compared with a traditional device, the solid-liquid separation device has the advantages that centrifugal separation is adopted, air pressure promotes sewage flow, and pressure difference promotes liquid to flow through the filter screen cylinder, so that the solid-liquid separation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of solid-liquid separation, in particular to a solid-liquid separation device for medical waste water. Background Art

[0002] Pharmaceutical waste liquid contains a large amount of organic matter, inorganic matter and microorganisms, etc. If it is discharged directly into the environment, it will cause serious pollution to the soil, water and ecosystem. Through solid-liquid separation, it can be convenient for subsequent treatment and disposal, and the useful substances in the suspension can be recovered, which can reduce the content of harmful substances in the waste liquid and reduce the impact on the environment. Solid waste can also be used as a resource, such as fertilizer, feed or fuel; this can not only reduce the discharge of waste, but also realize the recycling of resources.

[0003] During the solid-liquid separation process, changes in temperature will also affect the chemical and physical processes in the liquid medicine waste, such as precipitation, coagulation, dissolution, etc.; during the solid-liquid separation process, constant temperature helps to maintain the stability and fluidity of solid particles in the wastewater; if the temperature is too low, it may cause the solid particles to solidify or become more viscous, thereby increasing the difficulty of separation; if the temperature is too high, it may cause the solid particles to decompose or volatilize, which will also affect the separation effect.

[0004] At present, the prior art CN207887347U discloses a cleaning liquid recovery device for a medical centrifuge, and its structure includes a shell, an upper cover, an inner cavity, a placement tank, a control device, a waste liquid tank, a cleaning liquid recovery device and a waste liquid recovery pipe. The upper rear end of the shell is movably connected to the upper cover through a chain angle. The utility model has the following beneficial effects: the cleaning liquid recovery device for a medical centrifuge is provided with a cleaning liquid recovery device. When the user pours the cleaning liquid into the inner cavity for cleaning, the cleaning liquid recovery device will operate, and the inner cavity will be extracted into the waste liquid tank through the waste liquid recovery pipe, so that the waste liquid is effectively discharged. Then, when solid-liquid separation is performed on medicines and other items, the internal temperature is sensed by the temperature sensing device, and the appropriate temperature is adjusted by the temperature control device. Then, the speed is accurately controlled by the control device, so that it can be detected quickly and stably.

[0005] The above prior art also has the following problems:

[0006] The solid-liquid separation method is single. The traditional device uses a combination of centrifugal force and filter screen to separate solids and liquids. The method is single and the efficiency is low.

[0007] The filtration efficiency is unstable. The traditional device filters solid particles through the filter net. The solid particles will adhere to the filter net due to the centrifugal force, blocking the filter holes and seriously affecting the filtration efficiency. The filtration efficiency of this device is unstable.

[0008] Therefore, it is necessary to provide a solid-liquid separation device for medical waste water to solve the above technical problems. Summary of the invention

[0009] The utility model overcomes the shortcomings of the prior art and provides a solid-liquid separation device for medical waste water.

[0010] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a solid-liquid separation device for medical waste water, comprising: a filter component, a constant temperature component arranged outside the filter component, and an air pump component arranged above the filter component:

[0011] The filter assembly comprises: a rotating barrel, a sealing cover arranged above the rotating barrel, and a drain pipe arranged in the middle of the sealing cover; a motor is arranged at the bottom of the rotating barrel, and the output end of the motor is fixedly connected to the center of the bottom of the rotating barrel; a first thrust roller bearing is arranged on the upper surface of the rotating barrel, and the upper and lower end surfaces of the first thrust roller bearing are respectively fixedly connected to the lower surface of the sealing cover and the upper surface of the rotating barrel; an air inlet is arranged on the upper part of the sealing cover, and a filter screen cylinder is arranged on the lower surface of the sealing cover, and the filter screen cylinder is sleeved on the outside of the drain pipe; the outer end of the drain pipe extends to the outside of the sealing cover, and is provided with a collecting device;

[0012] A temperature sensor is provided inside the rotating barrel, and the temperature sensor is fixedly connected to the inner wall of the rotating barrel;

[0013] The thermostatic assembly comprises: a thermostatic housing arranged outside the rotating barrel, and a thermostatic machine arranged outside the thermostatic housing; the thermostatic housing is respectively provided with a first water inlet and a first water outlet connected to the thermostatic machine;

[0014] The air pump assembly comprises: a first air pump arranged on the sealing cover, and a second air pump arranged on the collecting device.

[0015] In a preferred embodiment of the utility model, the thermostat includes: a thermostat shell, a temperature regulating unit arranged in the thermostat shell, and a water storage tank arranged inside the thermostat; a second water inlet and a second water outlet are respectively arranged on the thermostat shell; the second water inlet is fixedly connected to the water storage tank.

[0016] In a preferred embodiment of the utility model, a plurality of connecting rods are arranged on the inner wall of the rotating barrel, a plurality of scrapers are arranged on the connecting rods, and the plurality of scrapers abut against the outer surface of the filter cylinder.

[0017] In a preferred embodiment of the utility model, a waterproof shell is provided on the motor, and the waterproof shell is fixedly connected to the motor.

[0018] In a preferred embodiment of the utility model, the filter screen cylinder is coaxially fixedly connected to the lower surface of the sealing cover.

[0019] In a preferred embodiment of the utility model, a second thrust roller bearing is arranged on the lower surface of the filter screen cylinder, and the second thrust roller bearing is coaxially fixedly connected to the bottom of the rotating barrel and the bottom of the inner wall of the constant temperature shell respectively.

[0020] In a preferred embodiment of the utility model, the collecting device is provided with an air outlet, and the air outlet is fixedly connected to the output end of the second air pump.

[0021] In a preferred embodiment of the utility model, an air inlet is provided on the sealing cover, and the air inlet is fixedly connected to the output end of the first air pump.

[0022] In a preferred embodiment of the utility model, a sewage feed inlet is arranged on the sealing cover, and a sealing cover is arranged on the sewage feed inlet; the sealing cover is threadedly connected to the sewage feed inlet.

[0023] In a preferred embodiment of the utility model, a gap is left between the discharge pipe port and the bottom of the inner wall of the rotating barrel and the bottom of the inner wall of the collecting device respectively.

[0024] The utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0025] In the utility model, a first air pump is arranged on the sealing cover, and a second air pump is arranged on the collecting device; the first air pump inputs gas into the rotating barrel to increase the pressure in the rotating barrel, and when the liquid and solid mixture in the rotating barrel is subjected to the increased pressure, the higher pressure helps the liquid in the sewage to overcome the flow resistance to pass through the filter screen cylinder, and the second air pump draws air from the collecting device to reduce the pressure in the collecting device, thereby generating a pressure difference between the collecting device and the rotating barrel; since the pressure in the rotating barrel is relatively high, the liquid is more likely to flow from the rotating barrel to the collecting device under the action of the pressure difference; this pressure difference promotes the flow of the liquid through the filter screen cylinder, thereby improving the efficiency of solid-liquid separation; compared with the traditional device, the utility model adopts the combined effect of centrifugal separation, air pressure promoting the flow of sewage and pressure difference promoting the flow of liquid through the filter screen cylinder, thereby improving the efficiency of solid-liquid separation.

[0026] In the utility model, a connecting rod is provided on the rotating barrel, and a scraper is provided on the connecting rod. The scraper is in close contact with the filter cylinder. When the rotating barrel rotates, the scraper rotates accordingly and removes the solid particles on the filter cylinder; this helps to prevent the filter cylinder from being blocked and keep it unobstructed, thereby ensuring that the solid particles in the sewage can be effectively intercepted and separated. Compared with the prior art, by removing the solid particles on the filter cylinder and keeping it unobstructed, the continuity and reliability of sewage treatment are ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0028] Figure 1 It is a general structural diagram of a preferred embodiment of the utility model;

[0029] Figure 2 It is a structural diagram of a filter assembly of a preferred embodiment of the utility model;

[0030] Figure 3 It is a structural diagram of a thermostat according to a preferred embodiment of the utility model;

[0031] In the figure: 1. Filter assembly; 2. Constant temperature assembly; 3. Air pump assembly; 4. Rotating barrel; 5. Sealing cover; 6. Drain pipe; 7. Motor; 8. Filter cylinder; 9. Collecting device; 10. Constant temperature housing; 11. First air pump; 12. Second air pump; 13. Scraper; 14. Constant temperature machine. DETAILED DESCRIPTION

[0032] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0033] like Figure 1 As shown, a solid-liquid separation device for medical waste water includes: a filter component 1, a constant temperature component 2 arranged outside the filter component 1, and an air pump component 3 arranged above the filter component 1. These components work together to ensure that the efficiency and effect of sewage treatment are optimal.

[0034] like Figure 2As shown, the filtering assembly 1 is responsible for realizing the main function of solid-liquid separation, including: a rotating barrel 4, which is driven to rotate by a motor 7 to form a centrifugal force to separate the solid particles from the liquid in the sewage, and a sealing cover 5 arranged above the rotating barrel 4; the sealing cover 5 ensures the airtightness of the entire filtering process, and prepares for the pressure difference generated by the air pump in the later stage to promote solid-liquid separation; and a drain pipe 6 arranged in the middle of the sealing cover 5, and the drain pipe 6 is responsible for leading out the separated liquid and collecting it through a collecting device 9; a motor 7 is arranged at the bottom of the rotating barrel 4, and the output end of the motor 7 is fixedly connected to the center of the bottom of the rotating barrel 4; a first thrust roller bearing is arranged on the upper surface of the rotating barrel 4, and the upper and lower end faces of the first thrust roller bearing are fixedly connected to the lower surface of the sealing cover 5 and the upper surface of the rotating barrel 4 respectively; an air inlet is arranged on the upper part of the sealing cover 5, and a filter screen cylinder 8 is arranged on the lower surface of the sealing cover 5, and the filter screen cylinder 8 is sleeved on the outside of the drain pipe 6; the outer end of the drain pipe 6 extends to the outside of the sealing cover 5, and a collecting device 9 is arranged.

[0035] A temperature sensor is provided inside the rotating barrel 4 and is fixedly connected to the inner wall of the rotating barrel 4 ; the temperature sensor monitors the temperature inside the rotating barrel in real time to ensure that the temperature during the treatment process is stable and controllable.

[0036] A number of connecting rods are arranged on the inner wall of the rotating barrel 4, and a number of scrapers 13 are arranged on the connecting rods. The scrapers 13 are in contact and connected with the filter screen cylinder 8. When the rotating barrel 4 rotates, the scrapers 13 will rotate accordingly and remove the solid particles on the filter screen cylinder 8. The continuous cleaning action of the scrapers 13 enables the filter screen cylinder 8 to always maintain good filtering performance, which can ensure that the filter screen cylinder 8 always maintains a certain filtering area, avoids the reduction of the filtering area due to blockage, helps to maintain the stability of the filtering process, and ensures the continuity and reliability of sewage treatment.

[0037] The motor 7 is provided with a waterproof casing, which is fixedly connected to the motor 7 to prevent water from intruding, protect the motor from damage, and extend its service life.

[0038] The filter screen cylinder 8 is coaxially fixedly connected to the lower surface of the sealing cover 5; a second thrust roller bearing is provided on the lower surface of the filter screen cylinder 8, and the second thrust roller bearing is coaxially fixedly connected to the bottom of the rotating barrel 4 and the bottom of the inner wall of the constant temperature shell 10 respectively.

[0039] The sealing cover 5 is provided with a sewage feed inlet, and a sealing cap is provided on the sewage feed inlet; the sealing cap is threadedly connected to the sewage feed inlet.

[0040] There are gaps between the end of the discharge pipe 6 and the bottom of the inner wall of the rotating barrel 4 and the bottom of the inner wall of the collecting device 9 respectively.

[0041] like Figure 3As shown, the thermostatic component 2 keeps the temperature constant during the treatment process, including: a thermostatic shell 10 arranged on the outside of the rotating barrel 4, which plays a role of heat preservation and heat insulation, and a thermostatic machine 14 arranged on the outside of the thermostatic shell 10. The thermostatic machine 14 adjusts the temperature as needed to ensure the best effect of sewage treatment; the thermostatic shell 10 is respectively provided with a first water inlet and a first water outlet connected to the thermostatic machine 14, and the first water inlet and the first water outlet on the thermostatic shell 10, as well as the connection with the thermostatic machine 14, constitute a circulation loop of the thermostatic system, ensuring temperature stability and the best effect during sewage treatment.

[0042] The thermostat 14 includes: a thermostat housing 10, a temperature regulating unit arranged in the thermostat housing 10, and a water storage tank arranged inside the thermostat 14; the thermostat housing 10 is respectively provided with a second water inlet and a second water outlet; the second water inlet is fixedly connected to the water storage tank.

[0043] The air pump assembly 3 includes: a first air pump 11 arranged on the sealing cover 5, and a second air pump 12 arranged on the collecting device 9; the collecting device 9 is provided with an air outlet, which is fixedly connected to the output end of the second air pump 12; the sealing cover 5 is provided with an air inlet, which is fixedly connected to the output end of the first air pump 11; the first air pump is arranged on the sealing cover, and inputs gas into the rotating barrel to increase the pressure in the barrel. The second air pump is arranged on the collecting device, and draws air from the collecting device to reduce its pressure; this air pressure difference helps to promote the discharge of liquid in the sewage through the filter screen 8, thereby improving the effect of solid-liquid separation; in addition, the collecting device is provided with an air outlet, which is fixedly connected to the output end of the second air pump, thereby ensuring the smooth discharge of gas.

[0044] When the utility model is used, the cover is opened, and the sewage is poured into the rotating barrel 4 through the sewage feed port; the motor 7 is started, and the output end of the motor 7 is fixedly connected to the bottom center of the rotating barrel 4 to provide rotating power for the rotating barrel 4; the rotating barrel 4 contains and rotates the sewage, and the sewage is subjected to the centrifugal force in the rotating barrel 4 to achieve solid-liquid separation; at the same time, the scraper 13 on the inner wall of the rotating barrel 4 rotates with the rotation of the rotating barrel 4 to remove the solid particles on the filter screen cylinder 8; the thermostat 14 is started, and the compressor, condenser and evaporator therein start to work, and the water in the water storage tank is precisely temperature-controlled through the temperature control unit; the temperature-controlled water is circulated to the filter assembly 1 through the water pump; the first air pump 11 and the second air pump 12 in the air pump assembly 3 are started; the first air pump 11 inputs gas into the rotating barrel 4 to increase the pressure in the barrel; the second air pump 12 draws air from the collecting device 9 to reduce its pressure. The air pressure difference causes the liquid in the sewage to pass through the filter screen cylinder 8 into the drain pipe 6, and then flows into the collecting device 9 through the drain pipe 6.

[0045] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A solid-liquid separation device for medical wastewater, comprising: A filter assembly (1), a constant temperature assembly (2) arranged outside the filter assembly (1), and an air pump assembly (3) arranged above the filter assembly (1), characterized in that: The filter assembly (1) comprises: a rotating barrel (4), a sealing cover (5) arranged above the rotating barrel (4), and a drainage pipe (6) arranged in the middle of the sealing cover (5); a motor (7) is arranged at the bottom of the rotating barrel (4), and the output end of the motor (7) is fixedly connected to the center of the bottom of the rotating barrel (4); a first thrust roller bearing is arranged on the upper surface of the rotating barrel (4), and the upper and lower end surfaces of the first thrust roller bearing are respectively fixedly connected to the lower surface of the sealing cover (5) and the upper surface of the rotating barrel (4); an air inlet is arranged at the upper part of the sealing cover (5), and a filter screen cylinder (8) is arranged on the lower surface of the sealing cover (5), and the filter screen cylinder (8) is sleeved on the outside of the drainage pipe (6); the outer end of the drainage pipe (6) extends to the outside of the sealing cover (5) and is provided with a collecting device (9); A temperature sensor is provided inside the rotating barrel (4), and the temperature sensor is fixedly connected to the inner wall of the rotating barrel (4); The thermostatic assembly (2) comprises: a thermostatic housing (10) arranged outside the rotating barrel (4), and a thermostatic machine (14) arranged outside the thermostatic housing (10); the thermostatic housing (10) is provided with a first water inlet and a first water outlet respectively connected to the thermostatic machine (14); The air pump assembly (3) comprises: a first air pump (11) arranged on the sealing cover (5), and a second air pump (12) arranged on the collecting device (9).

2. A solid-liquid separation device for medical wastewater according to claim 1, characterized in that: The thermostat (14) comprises: a thermostat housing (10), a temperature regulating unit arranged in the thermostat housing (10), and a water storage tank arranged inside the thermostat (14); a second water inlet and a second water outlet are respectively arranged on the thermostat housing (10); and the second water inlet is fixedly connected to the water storage tank.

3. A solid-liquid separation device for medical wastewater according to claim 1, characterized in that: A plurality of connecting rods are arranged on the inner wall of the rotating barrel (4), a plurality of scrapers (13) are arranged on the plurality of connecting rods, and the plurality of scrapers (13) abut against the outer surface of the filter screen cylinder (8).

4. A solid-liquid separation device for medical wastewater according to claim 1, characterized in that: The motor is provided with a waterproof shell, and the waterproof shell is fixedly connected to the motor.

5. A solid-liquid separation device for medical wastewater according to claim 1, characterized in that: The filter screen cylinder (8) is coaxially fixedly connected to the lower surface of the sealing cover (5).

6. A solid-liquid separation device for medical wastewater according to claim 1, characterized in that: A second thrust roller bearing is provided on the lower surface of the filter screen cylinder (8), and the second thrust roller bearing is coaxially fixedly connected to the bottom of the rotating barrel (4) and the bottom of the inner wall of the constant temperature housing (10), respectively.

7. A solid-liquid separation device for medical wastewater according to claim 1, characterized in that: The collecting device (9) is provided with an air outlet, and the air outlet is fixedly connected to the output end of the second air pump (12).

8. A solid-liquid separation device for medical wastewater according to claim 1, characterized in that: The sealing cover (5) is provided with an air inlet, and the air inlet is fixedly connected to the output end of the first air pump (11).

9. A solid-liquid separation device for medical wastewater according to claim 1, characterized in that: The sealing cover (5) is provided with a sewage feed inlet, and the sewage feed inlet is provided with a sealing cover; the sealing cover is threadedly connected to the sewage feed inlet.

10. A solid-liquid separation device for medical wastewater according to claim 1, characterized in that: There is a gap between the end of the liquid discharge pipe (6) and the bottom of the inner wall of the rotating barrel (4) and the bottom of the inner wall of the collecting device (9).

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