Medical sewage treatment solid-liquid separation equipment

Abstract

The utility model relates to the technical field of medical sewage treatment, and particularly discloses medical sewage treatment solid-liquid separation equipment which comprises a mixing box with a feeding pipe, a first motor arranged at the top of the mixing box, and a stirring rod arranged in the mixing box and coaxially and fixedly connected with the first motor, the device comprises a mixing box, two supporting plates distributed left and right are fixedly mounted on the outer side wall of the mixing box through mounting plates, a treatment mechanism located below the mixing box is arranged between the two supporting plates, the treatment mechanism comprises a treatment box, a first treatment cylinder is arranged in the treatment box, a second treatment cylinder is arranged in the first treatment cylinder, and the first treatment cylinder and the second treatment cylinder are arranged in the second treatment cylinder. The top of the treatment box, the top of the first treatment barrel and the top of the second treatment barrel are open, two-stage separation from rough filtration to fine filtration is achieved, the solid impurity separation efficiency is remarkably improved, and the functions of automatically cleaning the filter screen and automatically discharging solid waste are achieved.

Description

Technical Field

[0001] This utility model relates to the field of medical wastewater treatment technology, and specifically discloses a solid-liquid separation device for medical wastewater treatment. Background Technology

[0002] Medical wastewater has repeatedly drawn public attention, as its discharge causes significant harm to water resources and has become a major source of public health risks. In some regions, only a handful of hospitals truly meet national emission standards. Currently, inadequate legal regulations and weak environmental awareness have led to the direct discharge of medical wastewater and a situation of "high pollution, low treatment" in major hospitals.

[0003] Chinese patent CN220245616U discloses a medical wastewater treatment device with solid-liquid separation function, comprising a support rod and a treatment box. The treatment box is fixedly connected to the upper end of the support rod, and a box cover is connected to the upper end of the treatment box. A feed pipe is connected to the left end inside the box cover. In use, the wastewater and reagents to be treated are fed into the treatment box through the feed pipe. The motor is then started, and its output shaft rotates, driving the stirring shaft to stir the wastewater in the degradation reaction. After the wastewater reaction is complete, the valve in the drain pipe is opened, and the wastewater discharged from the drain pipe will be discharged. The solid waste will be filtered by the filter screen and retained on the filter screen. A pressure plate is then pressed down onto the connecting frame, and a front baffle is pulled to remove it from the inside of the chute. The solid waste on the upper part of the filter screen will slide down the inclined filter screen and fall out into the through trough.

[0004] In actual use, the above-mentioned device requires manual disassembly of the baffle to clean the filter screen, which is a cumbersome and labor-intensive process; moreover, it is difficult to effectively achieve comprehensive treatment from coarse filtration to fine filtration by using only a single filtration method, resulting in low separation efficiency. Utility Model Content

[0005] This invention proposes a solid-liquid separation device for medical wastewater treatment, which realizes two-stage separation from coarse filtration to fine filtration, significantly improving the separation efficiency of solid impurities, and has the functions of automatic filter cleaning and automatic discharge of solid waste.

[0006] This utility model is implemented as follows: a solid-liquid separation device for medical wastewater treatment includes a mixing tank with a feed pipe, a first motor disposed on the top of the mixing tank, and a stirring rod disposed inside the mixing tank and coaxially fixedly connected to the first motor. Two left-right distributed support plates are fixedly installed on the outer wall of the mixing tank via mounting plates. A processing mechanism located below the mixing tank is disposed between the two support plates. The processing mechanism includes a processing box, inside which is disposed a first processing cylinder, and inside which is disposed a second processing cylinder. The tops of the processing box, the first processing cylinder, and the second processing cylinder are all open. Multiple connecting plates are fixedly installed between the inner bottom of the first processing cylinder and the outer circumference of the second processing cylinder. Mesh holes are opened on the outer sides of both the first and second processing cylinders. The mesh holes on the first processing cylinder are smaller than those on the second processing cylinder. A slip ring is fixedly installed on the outer circumference of the processing box. A cleaning mechanism is disposed inside the processing box.

[0007] As a preferred embodiment of the solid-liquid separation device for medical wastewater treatment according to this utility model, the first treatment cylinder penetrates the bottom of the treatment tank and is fixedly connected to the bottom of the treatment tank, and the bottom of the first treatment cylinder is connected to a discharge pipe with a valve.

[0008] As a preferred embodiment of the solid-liquid separation device for medical wastewater treatment according to this utility model, the bottom of the second treatment cylinder is connected to a discharge pipe that extends into the inside of the discharge pipe and is equipped with a valve.

[0009] In a preferred embodiment of the medical wastewater treatment solid-liquid separation device of this utility model, the cleaning mechanism includes an inlet pipe that passes through one of the support plates and extends to the top of the treatment tank. The bottom of the inlet pipe is connected to a first flushing pipe and a second flushing pipe. The other end of the first flushing pipe extends between the second treatment cylinder and the first treatment cylinder, and the other end of the second flushing pipe extends between the treatment tank and the first treatment cylinder. The first flushing pipe is connected to a plurality of high-pressure nozzles facing the second treatment cylinder, and the second flushing pipe is connected to a plurality of high-pressure nozzles facing the first treatment cylinder and the inner wall of the treatment tank.

[0010] As a preferred embodiment of the solid-liquid separation device for medical wastewater treatment according to this utility model, a booster pump is fixedly installed on the outer wall of the inlet pipe and mounted on the outer wall of the support plate.

[0011] As a preferred embodiment of the solid-liquid separation device for medical wastewater treatment according to this utility model, each of the two support plates has a sliding groove on its opposite sides that is slidably connected to a slip ring. A second bevel gear is fixedly installed on the outer circumference of the treatment box, and a first bevel gear is meshed with the outer wall of the second bevel gear. A second motor is fixedly installed on the outer wall of one of the support plates, and the output end of the second motor passes through the support plate connected thereto and is fixedly connected to the first bevel gear.

[0012] As a preferred embodiment of the solid-liquid separation device for medical wastewater treatment according to this utility model, the bottom edge of the treatment tank is connected to a drain pipe with a valve, and the bottom of the mixing tank is connected to an outlet pipe with a valve that extends into the interior of the second treatment cylinder.

[0013] The beneficial effects of this utility model are:

[0014] 1. After the wastewater and the reagent are mixed and reacted, primary solid-liquid separation is first carried out in the second treatment cylinder (large mesh), and then secondary filtration is carried out in the first treatment cylinder (small mesh), realizing two-stage separation from coarse filtration to fine filtration, which improves the separation efficiency of solid impurities.

[0015] 2. When the treatment box, the first treatment cylinder, and the second treatment cylinder rotate, the high-pressure nozzle washes the mesh on the first and second treatment cylinders, achieving the effect of automatically cleaning the filter screen and maintaining the good filtration performance of the filter screen.

[0016] 3. During the rinsing process, opening the valves of the feed pipe and discharge pipe allows the solid waste cleaned and filtered from the first and second treatment cylinders to be discharged separately, achieving the effect of automatically cleaning and separating solid impurities, saving manual labor, and reducing the contact between medical staff and wastewater. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is an overall cross-sectional view of a solid-liquid separation device for medical wastewater treatment according to this utility model;

[0019] Figure 2 This is a structural diagram of the processing box of this utility model;

[0020] Figure 3 This is a top view of the first and second processing cylinders of this utility model.

[0021] Figure 4 This is a structural diagram of the support plate of this utility model.

[0022] The markings in the diagram are as follows: 1. Mixing tank; 101. First motor; 102. Stirring rod; 2. Support plate; 3. Processing tank; 301. Drain pipe; 4. First processing cylinder; 401. Feed pipe; 5. Second processing cylinder; 501. Discharge pipe; 6. Connecting plate; 7. Slide groove; 701. Slip ring; 702. Second motor; 703. First bevel gear; 704. Second bevel gear; 8. Water inlet pipe; 801. First flushing pipe; 802. Second flushing pipe; 803. Booster pump. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0024] Please see Figure 1-4 A solid-liquid separation device for medical wastewater treatment includes a mixing tank 1 with a feed pipe, a first motor 101 located on the top of the mixing tank 1, and a stirring rod 102 located inside the mixing tank 1 and coaxially fixedly connected to the first motor 101. Two left-right supporting plates 2 are fixedly installed on the outer wall of the mixing tank 1 via mounting plates. A processing mechanism located below the mixing tank 1 is provided between the two supporting plates 2. The processing mechanism includes a processing tank 3, a first processing cylinder 4 is provided inside the processing tank 3, and a second processing cylinder 5 is provided inside the first processing cylinder 4. The tops of the processing tank 3, the first processing cylinder 4, and the second processing cylinder 5 are all open. Multiple connecting plates 6 are fixedly installed between the bottom of the inner side of the first processing cylinder 4 and the outer circumference of the second processing cylinder 5. Mesh holes are provided on the outer sides of both the first processing cylinder 4 and the second processing cylinder 5. The mesh holes on the first processing cylinder 4 are smaller than the mesh holes on the second processing cylinder 5. A slip ring 701 is fixedly installed on the outer circumference of the processing tank 3. A cleaning mechanism is provided inside the processing tank 3.

[0025] In this embodiment: wastewater and reagent are mixed and reacted by stirring rod 102 and then passed into the second treatment cylinder 5 (large mesh) for primary solid-liquid separation. The liquid is filtered a second time through the first treatment cylinder 4 (small mesh) and then enters the space between the first treatment cylinder 4 and the treatment box 3, realizing two-stage separation from coarse filtration to fine filtration, which can improve the separation efficiency of solid impurities.

[0026] When cleaning the separated impurities, the second motor 702 is started to drive the processing box 3 to rotate, so that the first processing cylinder 4 and the second processing cylinder 5 can rotate simultaneously. At this time, the high-pressure nozzles on the first rinsing pipe 801 and the second rinsing pipe 802 can rinse the mesh on the first processing cylinder 4 and the second processing cylinder 5 and the inner wall of the processing box 3, preventing the mesh from being blocked and facilitating the cleaning of the inside of the processing box 3. During the rinsing process, the valves on the feed pipe 401 and the discharge pipe 501 are opened, and the solid waste cleaned and filtered out in the first processing cylinder 4 and the second processing cylinder 5 is discharged from the feed pipe 401 and the discharge pipe 501 respectively, realizing the effect of automatically cleaning and discharging the separated solid impurities and cleaning the filter screen.

[0027] As a technical optimization of this utility model, the first processing cylinder 4 penetrates the bottom of the processing box 3 and is fixedly connected to the bottom of the processing box 3, and the bottom of the first processing cylinder 4 is connected to a discharge pipe 401 with a valve.

[0028] In this embodiment: by setting up the feed pipe 401, it is convenient to discharge the impurities filtered out by the first processing cylinder 4, and by setting up the valve, it is convenient to control the opening and closing of the feed pipe 401.

[0029] As a technical optimization of this utility model, the bottom of the second processing cylinder 5 is connected to a discharge pipe 501 that extends into the inside of the discharge pipe 401 and is equipped with a valve.

[0030] In this embodiment: the discharge pipe 501 facilitates the discharge of impurities filtered out by the second processing cylinder 5, and the valve can control the opening and closing of the discharge pipe 501.

[0031] As a technical optimization of this utility model, the cleaning mechanism includes a water inlet pipe 8, which passes through one of the support plates 2 and extends to the top of the treatment tank 3. The bottom of the water inlet pipe 8 is connected to a first flushing pipe 801 and a second flushing pipe 802. The other end of the first flushing pipe 801 extends between the second treatment cylinder 5 and the first treatment cylinder 4, and the other end of the second flushing pipe 802 extends between the treatment tank 3 and the first treatment cylinder 4. Multiple high-pressure nozzles facing the second treatment cylinder 5 are connected to the first flushing pipe 801, and multiple high-pressure nozzles facing the first treatment cylinder 4 and the inner wall of the treatment tank 3 are connected to the second flushing pipe 802.

[0032] In this embodiment: water is introduced into the first flushing pipe 801 and the second flushing pipe 802 through the water inlet pipe 8, so that multiple high-pressure nozzles on the first flushing pipe 801 backwash the second treatment cylinder 5, and multiple nozzles on the second flushing pipe 802 backwash the first treatment cylinder 4 while rinsing the inner wall of the treatment tank 3.

[0033] As a technical optimization of this utility model, a booster pump 803 is fixedly installed on the outer wall of the water inlet pipe 8 and mounted on the outer wall of the support plate 2.

[0034] In this embodiment: starting the booster pump 803 can pressurize the external water flow and then pass it into the first flushing pipe 801 and the second flushing pipe 802.

[0035] As a technical optimization of this utility model, the two support plates 2 are provided with sliding grooves 7 on their opposite sides, which are slidably connected to the slip ring 701. The outer circumferential wall of the processing box 3 is fixedly installed with a second bevel gear 704. The outer wall of the second bevel gear 704 is meshed with a first bevel gear 703. The outer wall of one of the support plates 2 is fixedly installed with a second motor 702. The output end of the second motor 702 passes through the support plate 2 connected to it and is fixedly connected to the first bevel gear 703.

[0036] In this embodiment: the second motor 702 is started, causing the first bevel gear 703 to rotate and drive the second bevel gear 704 to rotate, which in turn causes the second bevel gear 704 to drive the processing box 3 to rotate. During the rotation of the processing box 3, the slip ring 701 can rotate along the slide groove 7. The slide groove 7 can restrict the movement direction of the slip ring 701, so that the slip ring 701 and the processing box 3 can rotate stably.

[0037] As a technical optimization of this utility model, the bottom edge of the treatment tank 3 is connected to a drain pipe 301 with a valve, and the bottom of the mixing tank 1 is connected to a water outlet pipe with a valve that extends into the interior of the second treatment cylinder 5.

[0038] In this embodiment: by setting up a drain pipe, it is convenient to discharge the filtered water, and by setting up a water outlet pipe, it is convenient to pass the medical wastewater with added drugs into the interior of the second treatment cylinder 5.

[0039] The working principle and usage process of this utility model are as follows: First, the device is electrically connected to an external power supply and a PLC touch screen integrated machine to operate the device. When in use, sewage and chemicals are added to the mixing tank 1 and mixed and reacted by the stirring rod 102. By opening the valve of the water outlet pipe at the bottom of the mixing tank 1, the mixed liquid is passed into the second treatment cylinder 5 (large mesh) for primary solid-liquid separation. The separated solid impurities remain in the second treatment cylinder 5. Then, the liquid is filtered twice through the first treatment cylinder 4 (small mesh) and enters the space between the first treatment cylinder 4 and the treatment tank 3. Finally, the valve on the drain pipe 301 is opened to discharge the filtered water from the drain pipe 301.

[0040] When cleaning the separated impurities, connect the water inlet pipe 8 to the external water pipe, start the booster pump 803, and let the water flow into the first flushing pipe 801 and the second flushing pipe 802 respectively. At the same time, start the second motor 702 to drive the processing box 3 to rotate. At this time, the first processing cylinder 4 and the second processing cylinder 5 can rotate at the same time, so that the high-pressure nozzles on the first flushing pipe 801 and the second flushing pipe 802 can wash the mesh on the first processing cylinder 4 and the second processing cylinder 5 and the inner wall of the processing box 3, preventing the mesh from being blocked and facilitating the cleaning of the processing box 3. During the rinsing process, open the valves on the feed pipe 401 and the discharge pipe 501, and discharge the cleaned and filtered solid waste in the first processing cylinder 4 and the second processing cylinder 5 from the feed pipe 401 and the discharge pipe 501 respectively.

[0041] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A solid-liquid separation device for medical wastewater treatment, comprising a mixing tank (1) with a feed pipe, a first motor (101) disposed on the top of the mixing tank (1), and a stirring rod (102) disposed inside the mixing tank (1) and coaxially fixedly connected to the first motor (101), characterized in that: Two left-right distributed support plates (2) are fixedly installed on the outer wall of the mixing box (1) by mounting plates. A processing mechanism located below the mixing box (1) is provided between the two support plates (2). The processing mechanism includes a processing box (3). A first processing cylinder (4) is provided inside the processing box (3). A second processing cylinder (5) is provided inside the first processing cylinder (4). The tops of the processing box (3), the first processing cylinder (4), and the second processing cylinder (5) are all open. Multiple connecting plates (6) are fixedly installed between the bottom of the inside of the first processing cylinder (4) and the outer circumference of the second processing cylinder (5). Mesh holes are provided on the outer sides of the first processing cylinder (4) and the second processing cylinder (5). The mesh holes on the first processing cylinder (4) are smaller than the mesh holes on the second processing cylinder (5). A slip ring (701) is fixedly installed on the outer circumference of the processing box (3). A cleaning mechanism is provided inside the processing box (3).

2. The medical wastewater treatment solid-liquid separation equipment according to claim 1, characterized in that: The first processing cylinder (4) penetrates the bottom of the processing box (3) and is fixedly connected to the bottom of the processing box (3), and the bottom of the first processing cylinder (4) is connected to a discharge pipe (401) with a valve.

3. The solid-liquid separation equipment for medical wastewater treatment according to claim 1, characterized in that: The bottom of the second processing cylinder (5) is connected to a discharge pipe (501) that extends into the discharge pipe (401) and is equipped with a valve.

4. The medical wastewater treatment solid-liquid separation equipment according to claim 1, characterized in that: The cleaning mechanism includes a water inlet pipe (8) that passes through one of the support plates (2) and extends to the top of the treatment tank (3). The bottom of the water inlet pipe (8) is connected to a first flushing pipe (801) and a second flushing pipe (802). The other end of the first flushing pipe (801) extends between the second treatment cylinder (5) and the first treatment cylinder (4). The other end of the second flushing pipe (802) extends between the treatment tank (3) and the first treatment cylinder (4). The first flushing pipe (801) is connected to a plurality of high-pressure nozzles facing the second treatment cylinder (5). The second flushing pipe (802) is connected to a plurality of high-pressure nozzles facing the first treatment cylinder (4) and the inner wall of the treatment tank (3).

5. A solid-liquid separation device for medical wastewater treatment according to claim 4, characterized in that: The outer wall of the water inlet pipe (8) is equipped with a booster pump (803) that is fixedly installed on the outer wall of the support plate (2).

6. The medical wastewater treatment solid-liquid separation equipment according to claim 1, characterized in that: Both of the two support plates (2) have sliding grooves (7) on opposite sides that are slidably connected to the slip ring (701). A second bevel gear (704) is fixedly installed on the outer circumference of the processing box (3). A first bevel gear (703) is meshed with the outer wall of the second bevel gear (704). A second motor (702) is fixedly installed on the outer wall of one of the support plates (2). The output end of the second motor (702) passes through the support plate (2) connected to it and is fixedly connected to the first bevel gear (703).

7. The medical wastewater treatment solid-liquid separation equipment according to claim 1, characterized in that: The bottom edge of the treatment tank (3) is connected to a drain pipe (301) with a valve, and the bottom of the mixing tank (1) is connected to a water outlet pipe with a valve that extends into the second treatment cylinder (5).

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