A multi-stage medical sewage treatment device

Abstract

The utility model relates to medical sewage treatment field discloses a kind of medical sewage multistage treatment equipment, including box, the left side front end inner wall of box is fixedly connected with shell, one end of shell is fixedly connected with water inlet, the other end of shell is fixedly connected with baffle, the left side of box top is fixedly connected with motor A, the output shaft of motor A is fixedly connected with rotating shaft, rotating shaft surface transmission is connected with conveying filter screen, conveying filter screen bottom is provided with rotating brush assembly, rotating brush assembly includes brush body, the both ends of brush body are rotatably connected with fixed link, the outside of a group of fixed link is fixedly connected with motor B, the output shaft of motor B is fixedly connected with the central shaft of brush body, the both sides of the one end of fixed link away from brush body are fixedly connected with torsion spring, fixed link is elastically connected in the inner wall of box by torsion spring, to play the role of cleaning filter screen.

Description

Technical Field

[0001] This utility model relates to the field of medical wastewater treatment, and in particular to a multi-stage medical wastewater treatment device. Background Technology

[0002] Medical wastewater is the wastewater generated by medical institutions during diagnosis, testing, surgery, drug preparation, cleaning and disinfection. This type of wastewater may contain a variety of harmful substances and poses potential risks of biological, chemical and physical pollution.

[0003] Medical wastewater treatment equipment is mainly used to kill pathogenic microorganisms in medical wastewater, degrade toxic chemicals, remove pollutants such as heavy metals, ensure that the effluent meets national discharge standards, prevent the spread of diseases and water pollution, and achieve safe and harmless treatment of medical wastewater.

[0004] Currently, existing medical wastewater treatment equipment has some shortcomings. During the initial filtration process, the screen is very easy to get stuck by large particles of waste, which leads to blockage and reduces the filtration effect. In addition, manual replacement of the screen is required, resulting in low work efficiency. Therefore, a multi-stage medical wastewater treatment equipment is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a multi-stage medical wastewater treatment device, which aims to improve the problem in the prior art where the screen is easily blocked by large particles of waste during the initial filtration process, resulting in reduced filtration effect and the need for manual replacement of the screen, leading to low work efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a multi-stage medical wastewater treatment device, comprising a tank, a filter provided in the front right chamber of the tank, a shell fixedly connected to the inner wall of the front left side of the tank, an inlet fixedly connected to one end of the shell, a baffle fixedly connected to the other end of the shell, a motor A fixedly connected to the top left side of the tank, a rotating shaft fixedly connected to the output shaft of the motor A, a conveying filter screen being drivenly connected to the surface of the rotating shaft, and a rotating brush assembly provided at the bottom of the conveying filter screen;

[0007] The rotating brush assembly includes a brush body, with fixed rods rotatably connected to both ends of the brush body. A motor B is fixedly connected to the outer side of a set of fixed rods. The output shaft of the motor B is fixedly connected to the central axis of the brush body. Torsion springs are fixedly connected to both sides of the end of the fixed rod away from the brush body. The fixed rod is elastically connected to the inner wall of the housing through the torsion springs.

[0008] As a further description of the above technical solution:

[0009] The box body has four cavities inside, and each of the four cavities is equipped with a water pump. A dosing assembly is located on the top right side of the box body.

[0010] The dosing assembly includes a body, an auger rotatably connected to the inner wall of the left side of the body, a protective shell fixedly connected to the rear end of the auger, a motor C fixedly connected to the inner wall of the protective shell, a medicine box fixedly connected to the bottom right side of the body, a rotating shaft penetrating the inner wall of the bottom of the medicine box, a motor D fixedly connected to the top left side of the body, two sets of fan blades arranged in the middle of the surface of the rotating shaft, the top set of the two sets of fan blades fixedly connected to the inner wall of the body, the bottom set of the two sets of fan blades fixedly connected to the rotating shaft, and three sets of paddles fixedly connected to the lower side of the surface of the rotating shaft.

[0011] As a further description of the above technical solution:

[0012] The output shaft of motor C is fixedly connected to the rear end of the auger, and the top of the rotating shaft is fixedly connected to the output shaft of motor D.

[0013] As a further description of the above technical solution:

[0014] The protective shell on the outside of the motor C is fixedly connected to the rear end of the machine body.

[0015] As a further description of the above technical solution:

[0016] The rotating shaft is provided in two sets, and the two sets of rotating shafts are rotatably connected to the inner side wall of the front chamber on the left side of the box.

[0017] As a further description of the above technical solution:

[0018] One end of the torsion spring is fixedly connected to the rotation center axis of the fixed rod, and the other end of the torsion spring is fixedly connected to the inner wall of the box. The fixed rod is rotatably connected to the inner side wall of the box. The outer arc surface of the brush body is in contact with the surface of the conveying filter screen. The output shaft of the motor B is fixedly connected to the rotation center axis of the brush body.

[0019] As a further description of the above technical solution:

[0020] A protective block is fixedly connected to the bottom of motor A, and the bottom of the protective block is fixedly connected to the top of the housing. A waterproof cover is fixedly connected to the surface of motor B, and one end of the waterproof cover is fixedly connected to the right-side fixing rod.

[0021] As a further description of the above technical solution:

[0022] A water outlet is fixedly connected to the lower side of the filter surface, and the water outlet penetrates the inner wall of the housing.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, when medical wastewater passes through the conveying filter screen, the debris will be separated from the wastewater by the conveying filter screen. The wastewater will pass through the filter screen and enter the water tank, while the debris will be conveyed into the debris tank by the conveying filter screen. At this time, the rotating brush assembly will self-clean the filter screen, which can effectively solve the problem of filter screen clogging.

[0025] 2. In this utility model, when adding flocculant, the auger will send the flocculant into the left side of the machine body. At this time, the rotating shaft drives the fan blades in the powder box to rotate and disperse the flocculant into the sewage, preventing the flocculant from clumping and causing the sedimentation effect to be unsatisfactory. Attached Figure Description

[0026] Figure 1 This is a frontal three-dimensional structural diagram of a multi-stage medical wastewater treatment device proposed in this utility model.

[0027] Figure 2 This is a three-dimensional side view of the overall structure of a multi-stage medical wastewater treatment device proposed in this utility model;

[0028] Figure 3 This is a schematic diagram illustrating the overall structure of the preliminary filtration device in a multi-stage medical wastewater treatment system proposed in this utility model.

[0029] Figure 4 This is a partial structural diagram of the rotating brush assembly of a multi-stage medical wastewater treatment device proposed in this utility model;

[0030] Figure 5 This is a cross-sectional structural diagram of the dosing component of a multi-stage medical wastewater treatment device proposed in this utility model;

[0031] Figure 6 This is a top view schematic diagram of the two sets of fan blades of a multi-stage medical wastewater treatment device proposed in this utility model.

[0032] Legend:

[0033] 1. Housing; 2. Water pump; 3. Shell; 4. Inlet; 5. Baffle; 6. Conveying filter screen; 7. Motor A; 8. Rotating shaft; 9. Rotating brush assembly; 91. Brush body; 92. Motor B; 93. Fixing rod; 94. Torsion spring; 10. Dosing assembly; 101. Machine body; 102. Screwdriver; 103. Motor C; 104. Rotating shaft; 105. Motor D; 106. Fan blade; 107. Dispensing box; 108. Paddle blade; 11. Filter; 12. Outlet. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figures 1-4 This utility model provides an embodiment of a multi-stage medical wastewater treatment device, comprising a housing 1, with four cavities inside the housing 1, including a water passage tank, a debris tank, a multi-stage treatment tank, a secondary sedimentation tank, and a sludge tank. Each of the four cavities is equipped with a water pump 2. A filter 11 is installed in the front right chamber of the housing 1, with an outlet 12 fixedly connected to the lower surface of the filter 11, penetrating the inner wall of the housing 1. The water pump 2 can pump out and discharge wastewater, enabling wastewater to flow between the various chambers. Wastewater that meets the discharge standards after passing through the filter 11 is finally discharged through the outlet 12. A shell 3 is fixedly connected to the inner wall of the front left side of the housing 1, with an inlet 4 fixedly connected to one end of the shell 3. Medical wastewater enters the device through the inlet 4 and undergoes preliminary filtration in the shell 3. The other end of the shell 3 is fixed... A baffle 5 is connected to prevent debris from falling from both sides during the conveying process, ensuring that the debris can smoothly enter the debris pool. A motor A7 is fixedly connected to the top left side of the box 1. A protective block is fixedly connected to the bottom of the motor A7. The bottom of the protective block is fixedly connected to the top of the box 1. A rotating shaft 8 is fixedly connected to the output shaft of the motor A7. The motor A7 is fixed to the top of the box 1 through the protective block, which plays a role in fixing the entire conveying filter screen 6. The motor A7 also provides power to the conveying filter screen 6 for its rotation. There are two sets of rotating shafts 8. The two sets of rotating shafts 8 are rotatably connected to the inner side wall of the left front chamber of the box 1. The surface of the rotating shaft 8 is connected to the conveying filter screen 6. The two sets of rotating shafts 8 are fixedly connected to the box 1, which plays a supporting role for the entire conveying filter screen 6. At the same time, the rotating shaft 8 provides power for the rotation of the conveying filter screen 6 through the motor A7.

[0036] Reference Figures 1-4A rotating brush assembly 9 is installed at the bottom of the conveying filter screen 6. The rotating brush assembly 9 contacts the conveying filter screen 6 to provide a self-cleaning function. The rotating brush assembly 9 includes a brush body 91, with fixed rods 93 rotatably connected to both ends of the brush body 91. A motor B92 is fixedly connected to the outside of a set of fixed rods 93. A waterproof sleeve is fixedly connected to the surface of the motor B92. One end of the waterproof sleeve is fixedly connected to the right fixed rod 93. The output shaft of the motor B92 is fixedly connected to the central shaft of the brush body 91. The brush body 91 contacts the mesh surface of the conveying filter screen 6. The motor B92 provides power for the rotation of the brush body 91, thus cleaning the mesh surface. The waterproof sleeve covers the motor B92 to prevent malfunctions caused by water ingress. The fixed connection between the waterproof sleeve and the fixed rods 93 provides support for the transmission output of the motor B92. A torsion spring 94 is fixedly connected to both sides of the end of the fixed rod 93 away from the brush body 91. The fixed rod 93 is elastically connected to the inner wall of the housing 1 through the torsion spring 94. One end of the torsion spring 94 is fixedly connected to the rotation center shaft of the fixed rod 93, and the other end of the torsion spring 94 is fixedly connected to the inner wall of the housing 1. The torsion spring 94 is used to elastically connect the housing 1 and the fixed rod 93. When the brush body 91 is subjected to the downward pressure of the conveying filter screen 6 to the limit, it will release the restoring force to achieve the function of automatic cleaning. The fixed rod 93 is rotatably connected to the inner side wall of the housing 1. The outer arc surface of the brush body 91 is in contact with the surface of the conveying filter screen 6. The output shaft of the motor B92 is fixedly connected to the rotation center shaft of the brush body 91. The brush body 91 is driven by the motor B92 to rotate and perform efficient cleaning work on the conveying filter screen 6.

[0037] Reference Figures 4-6A dosing assembly 10 is located on the top right side of the housing 1. The dosing assembly 10 includes a body 101. An auger 102 is rotatably connected to the inner left side of the body 101. A protective shell is fixedly connected to the rear end of the auger 102. A motor C103 is fixedly connected to the inner wall of the protective shell. The motor C103 provides power to the auger 102, causing it to rotate and propel the flocculant forward into the left side of the body 101. The protective shell outside the motor C103 is fixedly connected to the rear end of the body 101. A dispersing box 107 is fixedly connected to the bottom right side of the body 101. The dispersing box 107 has a small hole at the bottom and slots on the side to allow the flocculant to disperse and fall into the pool. A rotating shaft 104 passes through the inner bottom wall of the dispersing box 107. A motor D105 is fixedly connected to the top left side of the body 101. Two sets of fan blades 106 are located in the middle of the surface of the rotating shaft 104. The motor D105 provides power to the rotating shaft 104 to... The rotating mechanism drives one set of fan blades 106 to rotate, while the other set of fan blades 106 is fixedly connected to the inner wall of the left side of the machine body 101. Both sets of fan blades 106 have the same arc-shaped holes. When the two sets of fan blades 106 are misaligned, they can prevent the flocculant from falling. When the holes overlap, the flocculant will fall normally. The two sets of fan blades 106 work together to control the flocculant feed and prevent excessive falling. The top set of the two sets of fan blades 106 is fixedly connected to the inner wall of the machine body 101, and the bottom set of the two sets of fan blades 106 is fixedly connected to the rotating shaft 104. Three sets of paddles 108 are fixedly connected to the lower side of the rotating shaft 104. The uppermost set of the three sets of paddles 108 is inside the powder box 107 and is driven to rotate by the rotating shaft 104. This can fully disperse the flocculant in the box and make it fall into the pool. The lower two sets of the three sets of paddles 108 are driven to rotate by the rotating shaft 104. This can fully stir the sewage in the pool and effectively mix the flocculant and sewage.

[0038] Working principle: When medical wastewater needs to be treated, the wastewater is first injected into the housing 3 through the inlet 4 for preliminary filtration. The wastewater to be treated falls into the lower water tank through the conveying filter screen 6. Large particles of debris are conveyed by the conveying filter screen 6 with the power provided by the motor A7 and finally fall into the debris tank. The baffle 5 ensures that debris will not fall into the water tank from both sides of the filter screen. At the same time, since the motor A7 is fixedly connected to the top of the housing 1 and the output shaft is fixedly connected to a set of rotating shafts 8, and another set of rotating shafts 8 is fixedly connected to the inner wall of the water tank in the housing 1, it provides support for the entire conveying filter screen 6. Sometimes debris will stick to the filter screen and cause blockage.

[0039] At this time, the rotating brush assembly 9 will rotate under the drive of the motor B92 to clean the filter screen and remove the debris. The rotating brush assembly 9 is supported by the other end of the fixed rod 93 rotatably connected to both sides and the inner wall of the debris pool inside the box 1. When the brush body 91 is pressed down by the conveying filter screen 6, the pressure on the contact surface increases, which improves the cleaning efficiency. At the same time, since the filter screen is made of soft material, when the pressure reaches the limit, the restoring force of the torsion spring 94 makes the brush body 91 rebound and continue to clean the filter screen. Meanwhile, the sewage falling into the water tank is pumped by the water pump 2 into the multi-stage treatment tank, which includes an anaerobic tank, an anoxic tank and an aerobic tank. After multi-stage treatment, the sewage is discharged into the secondary sedimentation tank by the water pump 2.

[0040] At this point, flocculant is first added through the inlet above the body 101 of the dosing assembly 10. The auger 102 rotates under the drive of motor C103, and the auger delivers the flocculant to the left side of the body 101. The rotating shaft 104 rotates under the drive of motor D105, which in turn drives the upper fan blades 106 to rotate. The lower fan blades 106 are fixedly connected to the inner wall of the left side of the body 101. Both sets of fan blades 106 have identical arc-shaped holes. When the two sets of fan blades 106 are misaligned, they prevent the flocculant from falling; when the holes overlap, the flocculant... The wastewater falls normally into the dispersing box 107. The upper paddle 108 is driven by the rotating shaft 104 to rotate and disperse the flocculant through the holes on the dispersing box 107 and evenly disperse it into the secondary sedimentation tank. At this time, the two sets of paddles 108 in the lower layer rotate and stir the wastewater, so that the water and the agent are fully mixed and the sedimentation efficiency is improved. The sedimented water will be filtered through the filter 11 for final filtration. After meeting the discharge standards, it will be discharged from the outlet 12. The sedimented sludge is discharged into the sludge tank. Both the debris tank and the sludge tank are equipped with opening and closing doors for easy cleaning.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-stage medical wastewater treatment device, comprising a housing (1), characterized in that: A filter (11) is provided in the front right chamber of the box (1). A shell (3) is fixedly connected to the inner wall of the front left side of the box (1). A water inlet (4) is fixedly connected to one end of the shell (3). A baffle (5) is fixedly connected to the other end of the shell (3). A motor A (7) is fixedly connected to the top left side of the box (1). A rotating shaft (8) is fixedly connected to the output shaft of the motor A (7). A conveying filter screen (6) is connected to the surface of the rotating shaft (8). A rotating brush assembly (9) is provided at the bottom of the conveying filter screen (6). The rotating brush assembly (9) includes a brush body (91), with fixed rods (93) rotatably connected to both ends of the brush body (91). A motor B (92) is fixedly connected to the outer side of a set of fixed rods (93). The output shaft of the motor B (92) is fixedly connected to the central axis of the brush body (91). Torsion springs (94) are fixedly connected to both sides of the end of the fixed rod (93) away from the brush body (91). The fixed rod (93) is elastically connected to the inner wall of the housing (1) through the torsion springs (94).

2. The multi-stage medical wastewater treatment equipment according to claim 1, characterized in that: The box (1) has four cavities inside, and each of the four cavities is equipped with a water pump (2). A dosing assembly (10) is provided on the top right side of the box (1). The dosing assembly (10) includes a body (101), an auger (102) is rotatably connected to the inner wall of the left side of the body (101), a protective shell is fixedly connected to the rear end of the auger (102), a motor C (103) is fixedly connected to the inner wall of the protective shell, a powder box (107) is fixedly connected to the bottom right side of the body (101), a rotating shaft (104) passes through the inner wall of the bottom of the powder box (107), a motor D (105) is fixedly connected to the top left side of the body (101), two sets of fan blades (106) are arranged in the middle of the surface of the rotating shaft (104), the top set of the two sets of fan blades (106) is fixedly connected to the inner wall of the body (101), the bottom set of the two sets of fan blades (106) is fixedly connected to the rotating shaft (104), and three sets of paddles (108) are fixedly connected to the lower side of the surface of the rotating shaft (104).

3. The multi-stage medical wastewater treatment equipment according to claim 2, characterized in that: The output shaft of the motor C (103) is fixedly connected to the rear end of the auger (102), and the top of the rotating shaft (104) is fixedly connected to the output shaft of the motor D (105).

4. The multi-stage medical wastewater treatment equipment according to claim 2, characterized in that: The protective shell on the outside of the motor C (103) is fixedly connected to the rear end of the body (101).

5. A multi-stage medical wastewater treatment device according to claim 1, characterized in that: Two sets of rotating shafts (8) are provided, and the two sets of rotating shafts (8) are rotatably connected to the inner side wall of the left front chamber of the box (1).

6. The multi-stage medical wastewater treatment equipment according to claim 1, characterized in that: One end of the torsion spring (94) is fixedly connected to the rotation center axis of the fixed rod (93), and the other end of the torsion spring (94) is fixedly connected to the inner wall of the box (1). The fixed rod (93) is rotatably connected to the inner side wall of the box (1). The outer arc surface of the brush body (91) is in contact with the surface of the conveying filter screen (6). The output shaft of the motor B (92) is fixedly connected to the rotation center axis of the brush body (91).

7. A multi-stage medical wastewater treatment device according to claim 1, characterized in that: A protective block is fixedly connected to the bottom of the motor A (7), and the bottom of the protective block is fixedly connected to the top of the housing (1). A waterproof cover is fixedly connected to the surface of the motor B (92), and one end of the waterproof cover is fixedly connected to the right-side fixing rod (93).

8. A multi-stage medical wastewater treatment device according to claim 1, characterized in that: The filter (11) has an outlet (12) fixedly connected to the lower side of its surface, and the outlet (12) penetrates the inner wall of the housing (1).

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